Beauty instrument

Abstract

Provided in the present application is a beauty instrument. The beauty instrument comprises a main body and a beauty head. The beauty head comprises a negative-pressure cavity and a radio frequency electrode, wherein the negative-pressure cavity is used for preforming negative-pressure suction on the skin of a user so as to suction the skin into the negative-pressure cavity; and the radio frequency electrode is used for releasing a radio frequency current to the skin of the user. The beauty head is detachably connected to the main body. When the beauty head is connected to the main body, the negative-pressure cavity is in communication with the main body such that the main body performs negative-pressure suction on the skin of the user by means of the negative-pressure cavity, and the radio frequency electrode is electrically connected to the main body such that the main body provides electrical energy for the radio frequency electrode. In this way, when the beauty instrument is used, the beauty head is detachably connected to the main body, such that the radio frequency electrode is electrically connected to the main body, and the negative-pressure cavity is in communication with the main body; thus, the main body can suction the skin into the negative-pressure cavity by means of the negative-pressure cavity, and can then emit the radio frequency current to the suctioned skin by means of the radio frequency electrode, and the radio frequency current can penetrate the skin suctioned into the negative-pressure cavity, thus increasing the penetration depth of radio frequency energy, and improving beauty effects.

Description

Beauty Instruments Technical Field

[0001] The present application relates to the field of beauty instruments, and in particular to a beauty instrument. Background Art

[0002] Radiofrequency beauty devices primarily stimulate collagen production in the dermis through radiofrequency heating, thereby tightening the skin and reducing wrinkles. Traditional radiofrequency beauty devices are large medical devices primarily used in hospitals and beauty salons, and are no longer able to meet the needs of most people.

[0003] To improve user convenience and reduce costs, related technologies have miniaturized and made radio frequency beauty devices portable, allowing them to be used at home. These devices incorporate radio frequency electrodes directly on the skin-facing surface of the device. During use, the skin-facing surface faces or even contacts the facial skin, where the electrodes transmit radio frequency energy to stimulate the skin and achieve cosmetic results. However, the radio frequency current emitted by these electrodes is limited in its ability to penetrate subcutaneously, resulting in poor cosmetic results.

[0004] Further research has revealed that negative pressure adsorption technology can improve the effectiveness of beauty devices. One design incorporates a negative pressure tank and radio frequency electrodes within the beauty device's main body, while an air pump is housed within the device's main body. The pump and negative pressure tank are connected via an air hose. During assembly, one end of the hose is first connected to the pump within the main body, and the other end is then connected to the beauty device. Finally, the device is mounted on the main body. However, this process requires extreme caution to prevent the hose from separating from the pump or head, leading to low assembly efficiency.

[0005] It should be noted that the technical solutions disclosed above in this application are only for the purpose of introducing the invention purpose and effect of this application, but do not represent that they are prior art.

[0006] Summary of the Invention

[0007] The present application provides a beauty instrument, which is convenient for improving the assembly efficiency of the beauty instrument.

[0008] An embodiment of the present application provides a beauty device. This beauty device includes a main body and a beauty head. The beauty head includes a negative pressure tank and a radio frequency electrode. The negative pressure tank is used to negatively absorb the user's skin to attract the skin into the negative pressure tank; the radio frequency electrode is used to release radio frequency current to the user's skin. The beauty head is detachably connected to the main body. When the beauty head is connected to the main body, the negative pressure tank communicates with the main body, allowing the main body to negatively absorb the user's skin through the negative pressure tank. The radio frequency electrode is electrically connected to the main body, allowing the main body to provide electrical energy to the radio frequency electrode.

[0009] In this way, when using the beauty instrument, the beauty head is detachably connected to the main body to achieve electrical connection between the radio frequency electrode and the main body and communication between the negative pressure tank and the main body, so that the main body can suck the skin into the negative pressure tank through the negative pressure tank, and then emit radio frequency current to the skin after suction through the radio frequency electrode, so that the radio frequency current can penetrate the skin sucked into the negative pressure tank, thereby increasing the penetration depth of the radio frequency energy and improving the beauty effect.

[0010] It can be understood that the present application separates the beauty head from the main body and provides the negative pressure tank on the beauty head. When the beauty head is installed on the main body, the negative pressure tank and the main body can be connected, so there is no need to consider whether the airway hose is separated from the beauty head or the air pump, thereby improving assembly efficiency.

[0011] Moreover, it is understandable that during the use of the beauty instrument, the inside of the negative pressure tank and the radio frequency electrode will usually be stained with sweat, gel and other stains. The present application makes the main body and the beauty head detachable, so that the beauty head can be removed for cleaning when needed, thereby facilitating the cleaning of the inside of the negative pressure tank and the radio frequency electrode, and preventing cleaning water from entering the main body module to avoid damage to the beauty instrument.

[0012] Moreover, the negative pressure adsorption system is relatively complex, and the non-detachable setting makes repair and installation difficult. The detachable negative pressure radio frequency beauty instrument makes assembly easy, and the functional design of the negative pressure adsorption system is also diverse, such as more convenient negative pressure connection, negative pressure relief, etc.

[0013] In some embodiments of the present application, the main body includes a first electrical connector, the beauty head includes a second electrical connector, the second electrical connector is electrically connected to the RF electrode, and when the beauty head is connected to the main body, the first electrical connector and the second electrical connector are electrically connected, so that the main body provides electrical energy to the RF electrode; the main body includes a first airflow connection portion, and the beauty head includes a second airflow connection portion that is connected to the negative pressure tank, and when the beauty head is connected to the main body, the first airflow connection portion and the second airflow connection portion are connected, so that the negative pressure tank is connected to the main body. With this positional correspondence, assembly efficiency is improved when the components are disassembled and cleaned in sequence.

[0014] In some embodiments of the present application, the main body has a first assembly surface, and the beauty head has a second assembly surface. When the beauty head is connected to the main body, the first assembly surface and the second assembly surface are arranged correspondingly; the first electrical connector is exposed to the main body from the first assembly surface, and the second electrical connector is exposed to the beauty head from the second assembly surface, so that when the beauty head is connected to the main body, the first electrical connector and the second electrical connector are electrically connected; and / or, the first airflow connection part is exposed to the main body from the first assembly surface, and the second airflow connection part is exposed to the beauty head from the second assembly surface, so that when the beauty head is connected to the main body, the first airflow connection part and the second airflow connection part are connected.

[0015] In some embodiments of the present application, the main body further includes a main control board electrically connected to the first electrical connector to control the release of radio frequency current by the radio frequency electrode via the first and second electrical connectors. Furthermore, when the beauty head is connected to the main body, the first assembly surface and the second assembly surface are arranged in a corresponding direction in the direction of disassembly. Furthermore, when the beauty head is connected to the main body, the first assembly surface and the second assembly surface contact or abut against each other.

[0016] In some embodiments of the present application, the RF electrode is arranged close to the negative pressure tank, or the RF electrode at least partially extends to the inner wall of the negative pressure tank, so that the RF electrode releases RF current to the skin adsorbed by the negative pressure of the negative pressure tank.

[0017] In some embodiments of the present application, the main body includes a connection module, the connection module includes the first electrical connector and the first airflow connection part, the first assembly surface is provided on the connection module, and the beauty head is detachably connected to the connection module so that the beauty head is detachably connected to the main body.

[0018] In some embodiments of the present application, the connecting module or the beauty head is provided with an assembly groove, and the bottom of the assembly groove forms the first assembly surface or the second assembly surface, so that the beauty head can be installed into the assembly groove of the connecting module or the connecting module can be installed into the assembly groove of the beauty head, and the relative position of the connecting module and the beauty head can be limited.

[0019] In some embodiments of the present application, the connection module further includes a locking component, which is used to connect the beauty head when the first assembly surface contacts or abuts the second assembly surface to limit the beauty head from moving away from the connection module.

[0020] In some embodiments of the present application, the locking assembly is used to snap-fit ​​with the beauty head when the first assembly surface contacts or abuts the second assembly surface, so as to limit the beauty head from being away from the connection module; or, the locking assembly is used to magnetically adsorb the beauty head when the first assembly surface contacts or abuts the second assembly surface, so as to limit the beauty head from being away from the connection module.

[0021] In some embodiments of the present application, the locking assembly includes a snap-fitting portion, and the beauty head is provided with a snap-fitting portion; the snap-fitting portion is provided on the first assembly surface, and the snap-fitting portion is provided on the second assembly surface; when the first assembly surface contacts or abuts the second assembly surface, the snap-fitting portion cooperates with the snap-fitting portion and limits the relative position of the beauty head and the main body.

[0022] In some embodiments of the present application, the connection module further includes an unlocking component; the unlocking component is used to release the engagement between the locking component and the beauty head.

[0023] In some embodiments of the present application, the connection module further includes an unlocking component, which acts on the locking component; the unlocking component is configured such that when the unlocking component is pressed, the unlocking component drives the engaging portion and / or the engaging portion to slide to release the engagement between the locking component and the engaging portion.

[0024] In some embodiments of the present application, the connection module is provided with an assembly slot, the first airflow connection part is provided at the bottom of the assembly slot, the bottom of the assembly slot forms the first assembly surface, the beauty head is installed in the assembly slot, and the first assembly surface contacts or abuts the second assembly surface; the connection module also includes a movable limiting member, the movable limiting member is slidably provided on the inner side of the bottom of the assembly slot, the bottom of the assembly slot is provided with a buckling movable hole, the movable limiting member has a clamping part provided at the buckling movable hole, and a clamping part is provided on the second assembly surface, the movable limiting member has a locking position that allows the clamping part and the clamping part to be clamped together through the buckling movable hole, and an unlocking position that allows the clamping part and the clamping part to be separated.

[0025] In some embodiments of the present application, the locking portion is protruded from the surface of the movable limiting member, and the locking portion is movably arranged in the buckling movable hole in the sliding direction for cooperating with the locking portion; and / or, a guide member is protruded from the inner side surface of the bottom of the assembly groove, and the guide member defines a slide groove structure, and the movable limiting member can be slidably arranged in the slide groove structure; and / or, the main body also includes an outer shell with an opening, and the outer shell is provided with an inward inner flange at the opening, and the connecting module also includes a connecting inner shell, and the connecting inner shell defines the assembly groove, and the connecting inner shell is installed in the outer shell and is provided at the opening of the outer shell so that the assembly groove is exposed from the opening of the outer shell; the connecting inner shell includes an inner base plate and an inner surrounding plate, and the inner surrounding plate and the inner base plate are combined to form the assembly groove, and the inner base plate forms the bottom of the assembly groove.

[0026] In some embodiments of the present application, the first electrical connection member is a PIN needle; and / or the second electrical connection member is a PIN needle.

[0027] In some embodiments of the present application, the beauty head also includes a mounting shell and a head circuit board arranged in the mounting shell, the negative pressure groove and the second assembly surface are both arranged in the mounting shell and located on opposite sides of the mounting shell, the radio frequency electrode is installed in the mounting shell, and the head circuit board is electrically connected to the radio frequency electrode; one end of the second electrical connector is installed in the mounting shell, and is exposed from the mounting shell to form a pin point to be electrically connected to the first electrical connector; the other end of the second electrical connector elastically contacts or abuts the head circuit board to be electrically connected to the head circuit board; and / or, the main body also includes a main circuit board arranged in the main body, one end of the first electrical connector is installed on the main circuit board, and the other end passes through the first assembly surface to elastically contact or abut the second electrical connector; and / or, there are multiple first electrical connectors.

[0028] In some embodiments of the present application, when the beauty head is connected to the main body, the first airflow connection part is inserted into the second airflow connection part, or the second airflow connection part is inserted into the second airflow connection part, so that the first airflow connection part is connected to the second airflow connection part.

[0029] In some embodiments of the present application, the main body includes a connection module: the connection module is provided with an assembly groove, the bottom wall of the assembly groove forms the first assembly surface, the first airflow connection part protrudes from the first assembly surface to be inserted into the second airflow connection part, so that the first airflow connection part is connected to the second airflow connection part; or, the beauty head is provided with an assembly groove, the bottom wall of the assembly groove forms the second assembly surface, the second airflow connection part protrudes from the second assembly surface to be inserted into the first airflow connection part, so that the first airflow connection part is connected to the second airflow connection part.

[0030] In some embodiments of the present application, the beauty head also includes a mounting shell, the mounting shell includes a shell and a cover body, the shell includes a negative pressure substrate, a negative pressure enclosure connected to the negative pressure substrate and protruding toward one side, and a accommodating enclosure connected to the negative pressure enclosure and protruding toward the other side, the negative pressure enclosure and the negative pressure substrate form the negative pressure groove, the radio frequency electrode is arranged on the negative pressure enclosure and / or the negative pressure substrate; the negative pressure enclosure and the accommodating enclosure form a accommodating cavity with an opening, the cover body is installed at the opening of the accommodating cavity, the second assembly surface is arranged on the outer side surface of the cover body, the second electrical connector is installed on the cover body and exposed from the cover body; the second airflow connection part extends from the bottom of the negative pressure groove toward the cover body, and is exposed from the cover body to communicate with the first airflow part.

[0031] In some embodiments of the present application, the second airflow connection part is a negative pressure pipe, a negative pressure hole is provided on the cover body, and the second airflow connection part is connected to the negative pressure hole so as to be exposed from the cover body; and / or, a breathable part is provided in the second airflow connection part; and / or, the second electrical connection part is a PIN needle, and the beauty head further includes a head circuit board provided in the mounting shell, and the head circuit board is electrically connected to the radio frequency electrode; one end of the second electrical connection part is installed on the cover body and exposed from the cover body to form a pin point to be electrically connected to the first electrical connection part; the other end of the second electrical connection part elastically contacts or abuts against the head circuit board to be electrically connected to the head circuit board; and / or, The main body also includes a shell with an opening and a connecting module, the shell is provided with an inward inner flange at the opening, the connecting module includes the first electrical connector, a first airflow connecting part and a connecting inner shell, the connecting inner shell defines an assembly groove, the connecting inner shell is installed in the shell and is provided at the opening of the shell so that the assembly groove is exposed from the opening of the shell; the bottom of the assembly groove forms the first assembly surface, the beauty head is installed in the assembly groove, and the first assembly surface contacts or abuts the second assembly surface; the first airflow connecting part is provided at the bottom of the assembly groove and protrudes from the first assembly surface so as to be inserted into the second airflow connecting part to communicate with the second airflow connecting part.

[0032] In some embodiments of the present application, the outer shell includes a first half shell, a second half shell and a head shell having an opening and an inner flange, the first half shell is connected to one side of the second half shell to form a holding portion, one end of the first half shell has a bending portion that is bent and inclined toward a side close to the second half shell and is arranged in a first inclined direction, the bending portion protrudes from the second half shell, the head shell is connected to the bending portion and the second half shell, the head shell has an assembly recess that cooperates with the bending portion, and the opening is used to be set toward the user's face; the connecting inner shell is arranged in the head shell.

[0033] In some embodiments of the present application, the first airflow connection part is an airflow connection tube, which protrudes from the first assembly surface to be inserted into the second airflow connection part to communicate with the second airflow connection part.

[0034] In some embodiments of the present application, the main body further includes a sealing ring, which is sleeved on the outer circumference of the airflow connecting tube to seal the airflow connecting tube and the second airflow connecting portion.

[0035] In some embodiments of the present application, the main body further includes a shell with an opening, a connection module and a main circuit board arranged in the shell, the shell is provided with an inward inner flange at the opening, the connection module includes the first electrical connector, a first airflow connection part and a connection inner shell, the connection inner shell defines an assembly groove, the connection inner shell is installed in the shell and is provided at the opening of the shell so that the assembly groove is exposed from the opening of the shell; the first airflow connection part is provided at the bottom of the assembly groove, the bottom of the assembly groove forms the first assembly surface, the beauty head is installed in the assembly groove, the first assembly surface contacts or abuts the second assembly surface; the main circuit board is provided on the inner side of the bottom of the assembly groove, the first electrical connector is a PIN needle, One end of the first electrical connector is installed on the main circuit board, and the other end passes through the first assembly surface to elastically contact or abut the second electrical connector; the connection module also includes a movable limit member, which can be slidably arranged on the inner side of the bottom of the assembly groove, and the bottom of the assembly groove is provided with a buckling movable hole, and the movable limit member has a clamping portion arranged at the buckling movable hole, and a clamping portion is provided on the second assembly surface, and the movable limit member has a locking position that allows the clamping portion and the clamping portion to be clamped together through the buckling movable hole, and an unlocking position that allows the clamping portion and the clamping portion to be separated; the movable limit member is an annular structure, the first electrical connector is arranged on the outside of the annular structure, and the first airflow connection portion is arranged on the inside of the annular structure.

[0036] In some embodiments of the present application, the main body further includes an airflow driving member: the airflow driving member is connected to the first airflow connection portion and is used to drive the airflow to flow in the first airflow connection portion.

[0037] In some embodiments of the present application, an exhaust channel is formed between the second assembly surface of the beauty head and the first assembly surface of the main body, and the exhaust channel is connected to the airflow driving member to exhaust the gas driven by the airflow driving member.

[0038] In some embodiments of the present application, the second assembly surface is provided with an exhaust groove, and the exhaust groove and the first assembly surface form the exhaust channel.

[0039] In some embodiments of the present application, the main body also includes an airflow driving component: the airflow driving component is connected to the first airflow connection part, and is used to drive the airflow to flow in the first airflow connection part; the airflow driving component includes an air pump, and the main control board is electrically connected to the air pump to control the air pump.

[0040] In some embodiments of the present application, the first airflow connection part and the second airflow connection part are detachably connected so that the first airflow connection part and the second airflow connection part are in communication; and / or the ventilation area of ​​the connection channel of the second airflow connection part is smaller than the slot area of ​​the negative pressure groove.

[0041] In some embodiments of the present application, the first electrical connector contacts or abuts the second electrical connector in the disassembly direction, so that when the beauty head is connected to the main body, the first electrical connector is electrically connected to the second electrical connector; and / or the first airflow connection part and the second airflow connection part are docked in the disassembly direction, so that when the beauty head is connected to the main body, the first airflow connection part and the second airflow connection part are connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 shows a schematic structural diagram of a beauty instrument in one embodiment of the present application.

[0043] FIG2 shows an exploded schematic diagram of a beauty instrument in one embodiment of the present application from one perspective.

[0044] FIG3 shows an exploded schematic diagram of a beauty device in one embodiment of the present application from another perspective.

[0045] FIG4 shows an exploded schematic diagram of a housing of a beauty device in one embodiment of the present application.

[0046] FIG. 5 shows a partial enlarged view of area A in FIG. 4 .

[0047] FIG6 shows a schematic structural diagram of a connection module and a head shell of a beauty instrument in one embodiment of the present application.

[0048] FIG7 shows a schematic structural diagram of a connection module of a beauty instrument in one embodiment of the present application.

[0049] FIG8 shows a schematic structural diagram of a connection module from another perspective in one embodiment of the present application.

[0050] FIG9 shows a schematic structural diagram of a connection module of a beauty instrument in one embodiment of the present application, wherein the unlocking button is pressed to drive the movable limiting member to approach the abutting member.

[0051] FIG10 shows a schematic structural diagram of a connection module of a beauty instrument in one embodiment of the present application, wherein the unlocking button is not pressed, and the locking elastic member restores its shape to drive the movable limiting member away from the abutting member.

[0052] FIG11 shows a schematic structural diagram of a connection module from another perspective in one embodiment of the present application.

[0053] FIG. 12 shows a partial enlarged view of area B in FIG. 11 .

[0054] FIG13 shows a partial cross-sectional view of a beauty device in one embodiment of the present application.

[0055] FIG14 shows a schematic structural diagram of a head shell and a connection module in one embodiment of the present application, wherein the connection module includes a main circuit board.

[0056] FIG15 shows a schematic structural diagram of a beauty head in one embodiment of the present application.

[0057] FIG16 shows a schematic structural diagram of a shell of a beauty head in one embodiment of the present application.

[0058] FIG17 shows a schematic structural diagram of a beauty head in one embodiment of the present application.

[0059] FIG18 shows a schematic structural diagram of a shell of a beauty head in one embodiment of the present application.

[0060] FIG19 shows a schematic structural diagram of a beauty head in one embodiment of the present application, wherein the number of radio frequency electrodes is four.

[0061] FIG20 shows a schematic structural diagram of a beauty head in one embodiment of the present application, wherein the cover is detached.

[0062] FIG21 shows a cross-sectional view of a beauty head in one embodiment of the present application, wherein the cross-sectional view is taken at a position of a group of second electrical connectors.

[0063] FIG22 shows a partial cross-sectional view of a beauty device in one embodiment of the present application.

[0064] FIG23 shows a schematic structural diagram of a beauty instrument in one embodiment of the present application, wherein the rear shell is detached.

[0065] FIG24 shows a schematic structural diagram of an air source assembly in one embodiment of the present application, wherein the gas in the negative pressure tank is sucked by an air pump.

[0066] FIG25 shows a schematic structural diagram of an air source assembly in one embodiment of the present application, wherein the negative pressure tank inhales air through the air vent.

[0067] FIG26 shows a schematic structural diagram of an air path switching module in one embodiment of the present application.

[0068] FIG27 shows an exploded schematic diagram of a rear housing and a display module in one embodiment of the present application.

[0069] FIG28 shows a schematic structural diagram of a pressing member in one embodiment of the present application.

[0070] FIG29 shows a schematic structural diagram of an air path switching module in one embodiment of the present application.

[0071] FIG30 shows an exploded schematic diagram of a beauty device in another embodiment of the present application.

[0072] FIG31 shows a cross-sectional view of a beauty device in another embodiment of the present application.

[0073] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0074] The following specific embodiments illustrate the implementation of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to this implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide an in-depth understanding of the present application, the following description will contain many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other unless there is a conflict.

[0075] Hereinafter, if used, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, "multiple" means two or more. Directional terms such as "upper", "lower", "left", and "right" are defined relative to the orientation of the components schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, which are used for descriptions and clarifications relative to each other, and may change accordingly according to changes in the orientations of the components placed in the accompanying drawings. Directional terms such as "front" and "back" are defined according to the usage status or placement status of the product. It should be understood that these directional terms are relative concepts, which are used for descriptions and clarifications relative to each other, and may change accordingly according to different usage scenarios or different usage habits.

[0076] In this application, if used, unless otherwise specified or limited, the term "connected" should be understood in a broad sense. For example, "connected" can mean fixed connection, detachable connection, or integration; it can be directly connected or indirectly connected through an intermediary. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0077] When the following embodiments are described in detail with reference to schematic diagrams, for ease of explanation, the diagrams showing local structures of the devices will not be partially enlarged according to general proportions, and the schematic diagrams are only examples and should not limit the scope of protection of this application.

[0078] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0079] FIG1 shows a schematic structural diagram of a beauty instrument 001 in one embodiment of the present application.

[0080] As shown in FIG1 , this beauty device 001 includes a main body 010 and a beauty head 030. The beauty head 030 includes a negative pressure tank 4111 and a radio frequency electrode 420. The negative pressure tank 4111 is used to apply negative pressure to the user's skin, thereby attracting the skin to the negative pressure tank 4111. The radio frequency electrode 420 is used to release radio frequency current to the user's skin. The beauty head 030 is detachably mounted on the working end 011 of the main body 010. When the beauty head 030 is connected to the main body 010, the negative pressure tank 4111 communicates with the main body 010 to generate negative pressure, and the radio frequency electrode 420 is electrically connected to the main body 010, allowing the main body 010 to provide electrical energy to the radio frequency electrode 420.

[0081] This beauty device 001 is a radio frequency beauty device. When the head is attached to the working end 011 of the main body 010, the beauty head 030 can act on the user's skin. The main body 010 applies negative pressure to the beauty head 030, causing the user's skin to adhere to the beauty head 030. The beauty head 030 then transmits radio frequency current to the user's skin, achieving a beauty effect.

[0082] Specifically, when using the beauty device 001, the beauty head 030 is detachably connected to the main body 010, electrically connecting the RF electrode 420 to the main body 010 and connecting the negative pressure channel 4111 to the main body 010. This allows the main body 010 to draw skin into the negative pressure channel 4111 through the negative pressure channel 4111. The RF electrode 420 then emits a radio frequency current to the skin, allowing the radio frequency current to penetrate the skin drawn into the negative pressure channel 4111. This increases the penetration depth of the radio frequency energy and enhances the beauty effect. The detachable connection between the beauty head 030 and the main body 010 allows the beauty head 030 to be separated from the main body 010 and stored separately. When needed, the beauty head 030 and the main body 010 are reassembled to electrically connect the RF electrode 420 to the main body 010 and connect the negative pressure channel 4111 to the main body 010. In addition, through the detachable connection between the beauty head 030 and the main body 010, the user can replace different beauty heads 030 according to usage needs, such as replacing the beauty head 030 with a different negative pressure groove 4111, or replacing the beauty head 030 with a different number of radio frequency electrodes 420, or replacing the beauty head 030 with radio frequency electrodes 420 of different sizes, etc., so as to meet the diverse needs of users.

[0083] It can also be understood that, by separating the beauty head 030 from the main body 010 and providing the negative pressure tank 4111 on the beauty head 030, when the beauty head 030 is installed on the main body 010, the negative pressure tank 4111 can be connected to the main body 010, so there is no need to consider whether the airway hose is separated from the beauty head 030 or the air pump 510, thereby improving assembly efficiency.

[0084] Specifically, the beauty head 030 has a skin-contacting surface 410 c that faces or even contacts the facial skin during operation, and the radio frequency electrode 420 and the negative pressure groove 4111 are provided on the skin-contacting surface 410 c.

[0085] The beauty device 001 further includes a control component for controlling the operation of the radio frequency electrode 420 , etc. Optionally, the control component is disposed within the housing 100 to form a part of the main body 010 .

[0086] Furthermore, the main body 010 includes a first electrical connector 240, and the beauty head 030 also includes a second electrical connector 470. The second electrical connector 470 is electrically connected to the RF electrode 420. When the beauty head 030 is connected to the main body 010, the first electrical connector 240 and the second electrical connector 470 are electrically connected, so that the main body 010 provides electrical energy to the RF electrode 420. In this way, the RF electrode 420 can be controlled through the first electrical connector 240 and the second electrical connector 470.

[0087] Furthermore, the main body 010 includes a first airflow connection portion 232, and the beauty head 030 also includes a second airflow connection portion 4114 that communicates with the negative pressure groove 4111. When the beauty head 030 is connected to the main body 010, the first airflow connection portion 232 communicates with the second airflow connection portion 4114, thereby connecting the negative pressure groove 4111 with the main body 010. Thus, by providing the first airflow connection portion 232 on the beauty head 030 and the first airflow connection portion 232 connected to the airflow drive element on the main body 010, the main body 010 can be connected to the negative pressure groove 4111 by simply connecting the first airflow connection portion 232 with the second airflow connection portion 4114 when the beauty head 030 is installed on the main body 010, thereby further simplifying assembly.

[0088] Furthermore, the RF electrode 420 is positioned near the negative pressure groove 4111, or the RF electrode 420 at least partially extends to the inner wall of the negative pressure groove 4111, so that the RF electrode 420 releases RF current to the skin that is negatively pressured by the negative pressure groove 4111. The RF electrode 420 is positioned near the negative pressure groove 4111 so that the distance between the RF electrode 420 and the inner wall of the negative pressure groove 4111 is less than or equal to 12 mm. In this way, by positioning the RF electrode 420 near the negative pressure groove 4111, or by extending the RF electrode 420 at least partially to the inner wall of the negative pressure groove 4111, the RF path can be reduced, thereby improving the cosmetic effect.

[0089] The first electrical connector 240 and the first airflow connection portion 232 constitute a portion of the connection module 200 described below.

[0090] The main body 010 includes a connection module 200 to which the beauty head 030 is detachably connected, thereby detachably connecting the beauty head 030 to the main body 010. The first electrical connector 240 and the first airflow connection portion 232 are all part of the connection module 200.

[0091] It should be noted that the connection module 200 mentioned in this application can be either an independent module or a feature set formed based on other features of the main body 010. Its relationship with other components is mutually dependent, and it is listed separately for the convenience of description.

[0092] In some embodiments, the first airflow connection portion 232 and the second airflow connection portion 4114 can be detachably connected to each other, thereby communicating with each other. Thus, when the grooming head 030 is installed on the main body 010, the first airflow connection portion 232 and the second airflow connection portion 4114 are connected to each other, thereby communicating with each other. When the grooming head 030 needs to be removed, the first airflow connection portion 232 and the second airflow connection portion 4114 can be detached. For example, one of the first airflow connection portion 232 and the second airflow connection portion 4114 can be a nozzle, and the other can be an airway connector with a socket, into which the nozzle can be inserted. Of course, the first airflow connection portion 232 and the second airflow connection portion 4114 can also be set as other structural forms, as long as the first airflow connection portion 232 and the second airflow connection portion 4114 are connected and communicated when the beauty head 030 is installed / connected to the main body 010, and the first airflow connection portion 232 and the second airflow connection portion 4114 can be separated when the beauty head 030 is removed.

[0093] In some embodiments, the ventilation area of ​​the connecting channel of the second airflow connection portion 4114 is smaller than the notch area of ​​the negative pressure groove 4111. The ventilation area of ​​the connecting channel of the second airflow connection portion 4114 refers to the ventilation area at the connection with the first airflow connection portion 232. This allows the negative pressure groove 4111 to have a larger suction area while leaving a narrower channel for suctioning gas, facilitating connection with the air pump 510 and controlling suction from the negative pressure groove 4111.

[0094] Furthermore, the main body 010 has a first assembly surface 212b, and the beauty head 030 has a second assembly surface 412a. When the beauty head 030 is connected to the main body 010, the first assembly surface 212b and the second assembly surface 412a are correspondingly arranged.

[0095] The first electrical connector 240 is exposed from the first assembly surface 212b to the main body 010 , and the second electrical connector 470 is exposed from the second assembly surface 412a to the beauty head 030 , so that when the beauty head 030 is connected to the main body 010 , the first electrical connector 240 and the second electrical connector 470 are electrically connected.

[0096] The first airflow connection portion 232 is exposed from the first assembly surface 212b to the main body 010 , and the second airflow connection portion 4114 is exposed from the second assembly surface 412a to the beauty head 030 , so that when the beauty head 030 is connected to the main body 010 , the first airflow connection portion 232 and the second airflow connection portion 4114 are connected.

[0097] It will be appreciated that the first assembly surface 212b and the second assembly surface 412a are limited by the shapes of the main body 010 and the beauty head 030, respectively. However, as long as the first assembly surface 212b and the second assembly surface 412a correspond when the beauty head 030 is connected to the main body 010, they will suffice. For example, if the beauty head 030 has an opposing surface opposite the skin-engaging surface 410c, this opposing surface can form the second assembly surface 412a. The first assembly surface 212b can also be the surface of the main body 010 that faces the facial skin during operation. For another example, if the main body 010 has an assembly groove 212a, the first assembly surface 212b can be either the bottom of the assembly groove 212a or the inner peripheral wall of the assembly groove 212a.

[0098] Thus, by exposing the first electrical connector 240 from the first assembly surface 212b to the main body 010 and the second electrical connector 470 from the second assembly surface 412a to the beauty head 030, the first electrical connector 240 and the second electrical connector 470 can be electrically connected when the beauty head 030 is mounted on the main body 010. By exposing the first airflow connection portion 232 from the first assembly surface 212b to the main body 010 and the second airflow connection portion 4114 from the second assembly surface 412a to the beauty head 030, the first airflow connection portion 232 and the second airflow connection portion 4114 can be connected when the beauty head 030 is mounted on the main body 010, thereby improving ease of use.

[0099] Specifically, when the beauty head 030 is connected to the main body 010, the first assembly surface 212b contacts or abuts the second assembly surface 412a, which facilitates the positioning of the beauty head 030 and the main body 010.

[0100] Furthermore, when the beauty head 030 is connected to the main body 010, the first assembly surface 212b and the second assembly surface 412a are arranged in a corresponding disassembly direction. The disassembly direction refers to the direction in which the beauty head 030 moves away from or toward the main body 010 when the beauty head 030 is removed from or installed with the main body 010. For example, when the second assembly surface 412a is the aforementioned opposing surface, the first assembly surface 212b is the side of the main body 010 that faces the facial skin during operation and is opposite the opposing surface. When the first assembly surface 212b is the bottom of the assembly groove 212a, the second assembly surface 412a is the side of the beauty head 030 corresponding to the bottom (e.g., the aforementioned opposing surface). The disassembly direction can be parallel to the first inclined direction U. Optionally, when the disassembly direction is parallel to the first inclined direction U, at least one of the first electrical connector 240 and the first airflow connection portion 232 extends along the first inclined direction U.

[0101] Furthermore, the first electrical connector 240 and the second electrical connector 470 contact or abut against each other in the removal direction, so that when the beauty head 030 is connected to the main body 010, the first electrical connector 240 and the second electrical connector 470 are electrically connected. This facilitates the electrical connection between the first electrical connector 240 and the second electrical connector 470.

[0102] Furthermore, the first airflow connection portion 232 and the second airflow connection portion 4114 are connected in the disassembly direction, so that when the grooming head 030 is connected to the main body 010, the first airflow connection portion 232 and the second airflow connection portion 4114 are connected. This facilitates the connection between the first airflow connection portion 232 and the second airflow connection portion 4114.

[0103] In this way, the risk of damaging the first electrical connector 240, the second electrical connector 470, the first airflow connector 232 and the second airflow connector 4114 during the process of disassembling and assembling the beauty head 030 can be reduced, and the design difficulty of the first electrical connector 240, the second electrical connector 470, the first airflow connector 232 and the second airflow connector 4114 can be reduced, thereby reducing the design cost.

[0104] In some embodiments, the beauty head 030 or the main body 010 is provided with an assembly groove 212a. The bottom of the assembly groove 212a forms a first assembly surface 212b or a second assembly surface 412a. This allows the beauty head 030 to at least partially fit into the assembly groove 212a of the main body 010, or the main body 010 to fit into the assembly groove 212a of the beauty head 030, and restricts the relative position of the connection module 200 and the beauty head 030. Thus, by providing the assembly groove 212a, during operation, the facial skin contacts the beauty head 030. The sidewalls of the assembly groove 212a can be used to support the beauty head 030, thereby improving the stability of the beauty head 030 during operation.

[0105] Specifically, the first assembly surface 212 b is provided on the connection module 200 .

[0106] Specifically, the connection module 200 or the beauty head 030 is provided with an assembly groove 212a, and the bottom / bottom wall of the assembly groove 212a forms a first assembly surface 212b or a second assembly surface 412a, so that the beauty head 030 can be installed in the assembly groove 212a of the connection module 200 or the connection module 200 can be installed in the assembly groove 212a of the beauty head 030, and the relative positions of the connection module 200 and the beauty head 030 are restricted.

[0107] Furthermore, there are many ways to detachably connect the first airflow connection portion 232 and the second airflow connection portion 4114. For example, when the grooming head 030 is connected to the main body 010, the first airflow connection portion 232 is inserted into the second airflow connection portion 4114, or the second airflow connection portion 4114 is inserted into the first airflow connection portion 232, so that the first airflow connection portion 232 and the second airflow connection portion 4114 are connected. In this way, the plug-in connection method can quickly achieve a detachable connection and facilitate sealing.

[0108] In one embodiment, the connection module 200 is provided with an assembly slot 212a, the bottom wall of which forms a first assembly surface 212b, and the first airflow connection portion 232 protrudes from the first assembly surface 212b to be inserted into the second airflow connection portion 4114, thereby connecting the first airflow connection portion 232 with the second airflow connection portion 4114. In another embodiment, the grooming head 030 is provided with an assembly slot 212a, the bottom wall of which forms a second assembly surface 412a, and the second airflow connection portion 4114 protrudes from the second assembly surface 412a to be inserted into the first airflow connection portion 232, thereby connecting the first airflow connection portion 232 with the second airflow connection portion 4114.

[0109] Figure 2 shows an exploded schematic diagram of a beauty device 001 in one embodiment of the present application from one perspective. Figure 3 shows an exploded schematic diagram of a beauty device 001 in one embodiment of the present application from another perspective.

[0110] Referring to Figures 2 and 3, the main body 010 includes a housing 100. The housing 100 comprises a first half shell, a second half shell, and a head shell 110. The first half shell and the second half shell do not necessarily have to be strictly divided into halves. That is, the first half shell can be significantly larger or smaller than the second half shell, or one of the first half shell and the second half shell can even be a plate-like structure.

[0111] Furthermore, one end of the first half shell has a bending portion 121 that is bent and tilted toward a side close to the second half shell and is arranged in the first tilt direction U. The bending portion 121 can adapt to the head shell 110 to assemble the head shell 110, the first half shell and the second half shell.

[0112] For ease of description, in the state of FIG1 , the first half shell is defined as the rear shell 120, and the second half shell is defined as the front shell 130. The rear shell 120 extends as a whole along the first direction X, and the front shell 130 extends as a whole along the first direction X. The bent portion 121 is formed by bending forward and tilting forward. The head shell 110 is arranged to tilt forward, so that the head shell 110 can be provided with multiple RF electrodes 420 arranged forward and tilted, so as to release RF current to the user's skin through the RF electrodes 420. The multiple RF electrodes 420 arranged forward and tilted means that the multiple RF electrodes 420 are arranged tilted toward the side of the first half shell close to the second half shell.

[0113] The front shell 130 and the rear shell 120 cooperate to form a grip portion 101, making it easier for the user to hold the beauty device 001. The bent portion 121 protrudes from the front shell 130, and the head shell 110 is connected to the bent portion 121 and the front shell 130. Specifically, the grip portion 101 extends along a first direction X, with the bent portion 121 located at one end of the grip portion 101 and extending obliquely with respect to the first direction X. Specifically, the front shell 130 does not directly mate with the bent portion 121, so that when the front shell 130 and the rear shell 120 are connected, the bent portion 121 appears to protrude from the front shell 130.

[0114] Specifically, the head shell 110 has a skin-facing plate 011 a. When the beauty device 001 needs to act on the skin, the skin-facing plate 011 a faces the user's skin.

[0115] In some embodiments, as shown in Figures 2 and 3, the head shell 110 is used to install the beauty head 030, for example, the beauty head 030 can be installed on the skin-facing plate 011a; in other embodiments, as shown in Figures 30 and 31, the head shell 110 is used to form the beauty head 030, on which the radio frequency electrode 420 and the cold compress 910 are installed (specifically, the skin-facing plate 011a).

[0116] Specifically, the head shell 110 has an assembly recess 5122 that cooperates with the bending portion 121 , and the head shell 110 is detachably mounted on the bending portion 121 and the second half shell 517 through the assembly recess 5122 .

[0117] Thus, by providing the first half shell with a bent portion 121 that protrudes from the second half shell, and providing a corresponding assembly recess 5122 on the head shell 110 for use therewith, the head shell 110, the first half shell, and the second half shell can be combined to form the accommodating cavity 100a of the outer shell 100. Furthermore, this arrangement facilitates demolding of the head shell 110 during manufacture, thereby reducing manufacturing difficulty. Furthermore, during assembly, the provision of the assembly recess 5122 increases the assembly space, facilitating the installation of features such as the RF electrode 420 and the cold compress 910, or facilitating the installation of the connection module 200.

[0118] The following mainly describes an embodiment in which the head shell 110 as shown in FIG. 2 and FIG. 3 is used to install the beauty head 030 .

[0119] In the embodiment shown in Figures 2 and 3, the head shell 110 includes a base plate 110b and a surrounding plate 110c. The base plate 110b is used to form the skin-facing plate 011a, that is, the base plate 110b is the skin-facing plate 011a, and the assembly recess 5122 is formed in the surrounding plate 110c. In some embodiments, the surrounding plate 110c is connected to the periphery of the base plate 110b, making the head shell 110 generally hollow.

[0120] The enclosure 110c comprises an enclosure body 111 and an assembly 113. The enclosure body 111 is a hollow structure, connected to the periphery of the base plate 110b. Its interior forms a mounting cavity 110a, which accommodates the connection module 200, etc., for the beauty head 030. The assembly 113 is located at one end of the enclosure body 111 and is used to engage the rear shell 120 and the front shell 130, thereby connecting the rear shell 120 and the front shell 130 to the head shell 110.

[0121] The connecting module 200 is exposed from the other end of the enclosure body 111, facilitating the mating connection between the grooming head 030 and the connecting module 200. The end of the enclosure body 111 facing away from the assembly 113 is flatly configured so that the connecting module 200 can be accommodated within the mounting cavity 110a and exposed from the end of the mounting cavity 110a facing away from the assembly 113.

[0122] Optionally, the assembly part 113 and the enclosure body 111 are integrally formed to improve the strength of the head shell 110 and facilitate the production and preparation of the head shell 110 .

[0123] The assembly 113 includes a first head shell assembly portion 1131 and a second head shell assembly portion 1132. The first head shell assembly portion 1131 is used to connect to the rear shell 120, and the second head shell assembly portion 1132 is used to connect to the front shell 130. When the head shell 110, the front shell 130, and the rear shell 120 are connected, the front shell 130 and the rear shell 120 extend generally along the first direction X, and the head shell 110 extends along a first inclined direction U, which is inclined relative to the first direction X. The angle between the first inclination direction U and the first direction X is 20-80°, such as 22°, 24°, 26°, 28°, 30°, 32°, 34°, 36°, 38°, 40°, 42°, 44°, 46°, 48°, 50°, 52°, 54°, 56°, 58°, 60°, 62°, 64°, 66°, 68°, 70°, 75°, 78° or 80°.

[0124] In one embodiment, the included angle between the first inclined direction U and the first direction X can be selected to be 36°-63°. Optionally, the included angle between the first inclined direction U and the first direction X is 37°.

[0125] It can be understood that since the head shell 110 is used to install the beauty head 030 or to form the beauty head 030, by making the angle between the first inclined direction U and the first direction X 20-80° or 36°-63°, the skin-contacting surface 410c of the beauty head 030 can also be inclined, so that when holding the beauty instrument 001 and applying it to the face, the user can avoid raising the arm too high, thereby achieving more labor-saving beauty.

[0126] In summary, the above arrangement, on the one hand, allows the user to conveniently apply the beauty head 030 to the user's skin (e.g., face) by holding the handle 101 formed by the front shell 130 and the rear shell 120 after the beauty head 030 is assembled on the head shell 110, without having to raise their arm, which is labor-saving. On the other hand, the dimension of the beauty device 001 in the second direction Y can be kept relatively small, making it easier to store the beauty device 001.

[0127] The first inclined direction U is located between the first direction X and the second direction Y, and the second direction Y is perpendicular to the first direction X. The first direction X forms the length direction of the beauty device 001. The second direction Y forms the thickness direction of the beauty device 001. The third direction Z, which is perpendicular to the first direction X and the second direction Y, forms the width direction of the beauty device 001.

[0128] FIG4 shows an exploded schematic diagram of the housing 100 of the beauty device 001 in one embodiment of the present application.

[0129] 3 and 4 , along a second inclined direction V perpendicular to the first inclined direction U, from away from the second head shell assembly portion 1132 to closer to the second head shell assembly portion 1132, the first head shell assembly portion 1131 includes a first head shell region 11311, a second head shell region 11312, and a third head shell region 11313. The first head shell region 11311 and the second head shell region 11312 are arranged at an obtuse angle, and the second head shell region 11312 and the third head shell region 11313 are arranged at an obtuse angle to form an assembly recess 11314, and the assembly recess 11314 is enlarged to further facilitate demolding and increase assembly space.

[0130] The notch formed by the first head shell region 11311 in the head shell 110 is approximately perpendicular to the first tilt direction U. The notch formed by the second head shell region 11312 in the head shell 110 is approximately perpendicular to the second direction Y. The notch formed by the third head shell region 11313 in the head shell 110 is approximately perpendicular to the first tilt direction U.

[0131] The first head shell area 11311 and the second head shell area 11312 transition in an arc shape, and the second head shell area 11312 and the third head shell area 11313 transition in an arc shape, so as to facilitate demolding.

[0132] In which, the area between the first head shell area 11311 and the second head shell area 11312 forms an assembly recess 11314.

[0133] Specifically, the size of the portion of the head shell 110 corresponding to the second head shell area 11312 in the first tilt direction U gradually increases from close to the first head shell area 11311 to close to the third head shell area 11313.

[0134] Specifically, along the first inclined direction U, the extended dimension of the panel body 111 corresponding to the first head shell region 11311 is smaller than the extended dimension of the panel body 111 corresponding to the second head shell region 11312. Along the first inclined direction U, the extended dimension of the panel body 111 corresponding to the second head shell region 11312 is smaller than the extended dimension of the panel body 111 corresponding to the third head shell region 11313, thereby forming the assembly recess 11314.

[0135] The assembly notch 11314 of the head shell 110 is used to cooperate with the bent portion 121 for connection.

[0136] It is understood that the assembly recess 11314 can also be formed in the base plate 110b and the enclosure 110c. In some embodiments, the enclosure 110c protrudes and is connected to a portion of the periphery of the base plate 110b. In this case, the assembly recess 11314 can be formed between the base plate 110b and the enclosure 110c.

[0137] Furthermore, the portion of the head shell 110 corresponding to the first head shell region 11311 extends a smaller dimension in the first oblique direction U. This facilitates inserting tools into the head shell 110 through the notch corresponding to the first head shell region 11311 when assembling the head shell 110 and the connection module 200, thereby reducing assembly difficulty and cost and improving assembly yield. Furthermore, the head shell 110 is easier to remove from the mold during production.

[0138] In the present application, the head shell 110 can be produced by injection molding. After injection molding, when the head shell 110 is demolded, the assembly recess 11314 is formed on the head shell 110, which facilitates demolding, such as facilitating the head shell 110 to be demolded along the first inclined direction U or along the direction from the first head shell area 11311 to the second head shell area 11312.

[0139] The first head shell assembly portion 1131 transitions to the second head shell assembly portion 1132 through the third head shell region 11313, facilitating the assembly of the rear shell 120 to the head shell 110 while connecting to the front shell 130. The arcuate transition means that the portion transitioning from one region to another is arc-shaped, wherein the first head shell region 11311 and the second head shell region 11312 transition in an arc shape, where the contour of the connection between the first head shell region 11311 and the enclosure body 111 transitions to the contour of the connection between the second head shell region 11312 and the enclosure body 111 is arc-shaped, thereby preventing deformation of the tip during demolding and facilitating alignment and assembly.

[0140] The rear shell 120 is provided with a first rear shell assembly portion 1201 , and the first rear shell assembly portion 1201 is used to cooperate with the first head shell assembly portion 1131 , thereby realizing the connection between the head shell 110 and the rear shell 120 .

[0141] The rear shell 120 has a first accommodating groove 120 a , and the front shell 130 has a second accommodating groove 130 a . The first accommodating groove 120 a and the second accommodating groove 130 a together form an accommodating cavity 100 a between the front shell 130 and the rear shell 120 .

[0142] The first rear shell assembly portion 1201 includes a first rear shell area 12011, a second rear shell area 12012, and a third rear shell area 12013. The first rear shell area 12011 corresponds to the first head shell area 11311, and the second rear shell area 12012 corresponds to the second head shell area 11312. That is, the first rear shell area 12011 and the second rear shell area 12012 correspond to the assembly recess 11314, and the third rear shell area 12013 corresponds to the third head shell area 11313. Optionally, the first rear shell area 12011 and the second rear shell area 12012 transition in an arc shape.

[0143] When the back shell 120 is connected to the head shell 110, the notch formed in the first back shell area 12011 is roughly perpendicular to the extension direction, the notch formed in the second back shell area 12012 is roughly perpendicular to the second direction Y, and the notch formed in the third back shell area 12013 is roughly perpendicular to the extension direction.

[0144] Among them, the first rear shell area 12011 , the second rear shell area 12012 and the third rear shell area 12013 are formed in the bending portion 121 .

[0145] When assembling the front shell 130, the rear shell 120 and the head shell 110, the rear shell 120 can be moved close to the head shell 110 along the second direction Y so that the head shell 110 is connected to the rear shell 120, and connected to the front shell 130 so that the first accommodating groove 120a and the second accommodating groove 130a form an accommodating cavity 100a.

[0146] The first head shell assembly portion 1131 is provided with a first head shell engaging member 11315, and the back shell 120 is provided with a first back shell engaging member 12015 on the first back shell assembly portion 1201. The first head shell engaging member 11315 and the first back shell engaging member 12015 are engaged with each other, so that the head shell 110 and the back shell 120 are engaged.

[0147] The outer wall surface of the first head shell assembly portion 1131 is not coplanar with the outer wall surface of the enclosure body 111 , so that a first step is formed between the first head shell assembly portion 1131 and the enclosure body 111 .

[0148] When the rear shell 120 is connected to the head shell 110, the rear shell 120 fits against the bottom wall of the first step, and the end of the rear shell 120 close to the head shell 110 abuts against the side wall of the first step. The bottom wall of the first step is the outer periphery of the first head shell assembly portion 1131, and the side wall of the first step is the end face of the enclosure body 111 facing the first head shell assembly portion 1131. The abutment of the rear shell 120 against the side wall of the first step can limit the movement of the rear shell 120 relative to the head shell 110 along the first direction X, and can facilitate the coplanarity or smooth transition of the outer wall surface of the rear shell 120 and the outer wall surface of the enclosure body 111, thereby improving the flatness of the appearance of the shell 411.

[0149] Optionally, the first head shell engaging member 11315 is a hole, and the first rear shell engaging member 12015 is a buckle. The buckle can be elastically deformed to enter the hole, and after the buckle is locked in the hole, the buckle elastically recovers its shape to achieve the engagement between the buckle and the hole.

[0150] Optionally, the first head shell assembly part 1131 is provided with a first head shell fitting part, and the back shell 120 is provided with a first back shell fitting part in the first back shell assembly part 1201. The first head shell fitting part and the first back shell fitting part fit tightly together, so that the head shell 110 and the back shell 120 are connected. Optionally, the first head shell fitting part is a magnetic part, and the first back shell fitting part is a magnetic part. The first head shell fitting part and the first back shell fitting part can fit together magnetically. Optionally, the first head shell fitting part is an adhesive part, and the first back shell fitting part is an adhesive surface. The first head shell fitting part and the first back shell fitting part can fit together by adhesion.

[0151] When the front shell 130 is connected to the head shell 110, the front shell 130 extends generally along the first direction X. Along the second direction Y, the size of the front shell 130 is 0.2-0.25 times the size of the rear shell 120. This allows the first accommodating groove 120a of the rear shell 120 to constitute the majority of the accommodating cavity 100a, while the second accommodating groove 130a of the front shell 130 only constitutes a small portion of the accommodating cavity 100a. When it is necessary to detach the outer shell 100 to maintain the beauty device 001, only the rear shell 120 needs to be detached to expose the internal components of the beauty device 001, and a larger operating window is formed at the location where the rear shell 120 is detached to facilitate operations, such as maintenance.

[0152] Specifically, the front shell 130 is further provided with a first front shell assembly portion 1301. The first front shell assembly portion 1301 cooperates with the second head shell assembly portion 1132 to assemble the front shell 130 and the head shell 110. The second head shell assembly portion 1132 is provided with a second head shell engaging member 11321, and the first front shell assembly portion 1301 is provided with a first front shell engaging member 13011.

[0153] In this way, the head shell 110 and the front shell 130 can be engaged with each other through the engagement and cooperation between the second head shell engaging member 11321 and the first front shell engaging member 13011 .

[0154] Specifically, a second step is formed between the second head shell assembly portion 1132 and the enclosure body 111. When the front shell 130 is connected to the head shell 110, the front shell 130 fits against the bottom wall of the second step, and the end of the front shell 130 closest to the head shell 110 abuts against the side wall of the second step. The bottom wall of the second step is the outer periphery of the second head shell assembly portion 1132, and the side wall of the second step is the end face of the enclosure body 111 facing the second head shell assembly portion 1132.

[0155] In this way, the front housing 130 abuts against the side wall of the second step, which can limit the movement of the front housing 130 along the first direction X relative to the head housing 110 .

[0156] Optionally, the second head shell assembly portion 1132 is provided with a second head shell fitting part, and the first front shell assembly portion 1301 is provided with a first front shell fitting part. The second head shell fitting part and the first front shell fitting part fit tightly together, so that the head shell and the front shell fit together. Optionally, the second head shell fitting part is a magnetic part, and the first front shell fitting part is a magnetic part. The second head shell fitting part and the first front shell fitting part can fit together magnetically. Optionally, the second head shell fitting part is an adhesive part, and the first front shell fitting part is an adhesive surface. The second head shell fitting part and the first front shell fitting part can fit together by adhesion.

[0157] It is understandable that the head shell 110 may not be provided with the assembly part 113, and may be connected to the front shell 130 or the rear shell 110 in other ways. For example, a magnetic part may be embedded in the head shell 110 to connect the head shell 110 and the rear shell 120 by magnetic attraction, and the head shell 110 and the front shell 130 by magnetic attraction.

[0158] FIG. 5 shows a partial enlarged view of area A in FIG. 4 .

[0159] Please refer to FIG. 4 and FIG. 5 . Optionally, the second head shell engaging member 11321 is a engaging groove, and the first front shell engaging member 13011 is a engaging block.

[0160] Specifically, the engaging groove is generally T-shaped, having a first head shell engaging section 11322 and a second head shell engaging section 11323 along a first direction X. The size of the engaging block matches the engaging groove. When the engaging block is inserted into the engaging groove along a second direction Y, the engaging groove prevents the engaging block from falling out of the engaging groove along the first direction X, thereby preventing the front shell 130 from moving away from the head shell 110 along the first direction X. Furthermore, the T-shaped engaging structure has greater structural strength and higher engagement stability.

[0161] Optionally, the dimension of the first head shell engaging section 11322 along the third direction Z is greater than the dimension of the second head shell engaging section 11323 along the third direction Z.

[0162] Optionally, the front shell 130 is further provided with a locking member 1304, which is locked to the second head shell assembly portion 1132 to limit the relative movement of the front shell 130 and the head shell 110 along the second direction Y.

[0163] Optionally, the extension direction of the second head shell assembly portion 1132 is inclined to the second direction Y.

[0164] When the front shell 130 is connected to the head shell 110 , the enclosure body 111 can also abut against the front shell 130 in the second direction Y to prevent the front shell 130 from separating from the head shell 110 along the second direction Y.

[0165] The extension direction of the second head shell assembly portion 1132 is inclined at an angle of 3-10 degrees to the second direction Y. Optionally, the extension direction of the second head shell assembly portion 1132 is inclined at an angle of 6 degrees to the second direction Y, so that the front shell 130 cooperates with the head shell 110 along the second direction Y, and the enclosure body 111 can abut the front shell 130 in the second direction Y to limit the front shell 130 from separating from the head shell 110 along the second direction Y. The extension direction of the second head shell assembly portion 1132 is the direction in which the second head shell assembly portion 1132 extends away from the first head shell assembly portion 1131.

[0166] 3 and 4 , the front shell 130 has a tail cover portion 131 at one end away from the head shell 110. In this way, when the front shell 130 is disassembled, more operating space can be exposed to facilitate assembly or maintenance.

[0167] 3 and 4 , the tail cover portion 131 is inclined in the first direction X and extends toward the rear housing 120. Accordingly, in one embodiment, the rear housing 120 gradually increases in size in the first direction X from a position close to the front housing 130 to a position away from the front housing 130. The rear housing 120 has the smallest size in the first direction X at an end close to the front housing 130.

[0168] Thus, when the front shell 130 is connected to the head shell 110, a flare is formed at the connection between the front shell 130 and the head shell 110. That is, as the front shell 130 approaches and moves away from the front shell 130 along the second direction Y, the assembly dimension along the first direction X increases, thereby facilitating the assembly of the rear shell 120 into the flared portion. It will be appreciated that if the assembly dimension along the first direction X decreases as the front shell 130 approaches and moves away from the front shell 130 along the second direction Y, a positional conflict with the rear shell 120 may easily occur, making it difficult for the rear shell 120 to be assembled into the assembly space formed by the front shell 130 and the head shell 110. In the present application, when the front shell 130 is connected to the head shell 110, an opening is formed between the tail cover portion 131 and the head shell 110. The rear shell 120 approaches this opening from the end with the smallest dimension in the first direction X, thereby facilitating the assembly of the rear shell 120 into the front shell 130 and the head shell 110.

[0169] Furthermore, as shown in FIG. 3 and FIG. 4 , the front shell 130 further includes a second front shell assembly portion 1302 . The second front shell assembly portion 1302 is configured to cooperate with the rear shell 120 to fix the relative positions of the front shell 130 and the rear shell 120 .

[0170] Among them, along the first direction X, from close to to far away from the head shell, the second front shell assembly part 1302 sequentially includes a first front shell area 13021 and a second front shell area 13022. The first front shell area 13021 extends as a whole parallel to the first direction, and when the front shell 130 is connected to the head shell 110, the first front shell area 13021 and the second head shell assembly part 1132 of the second front shell assembly part 1302 transition in an arc shape.

[0171] Further, as shown in Figures 3 and 4, the second front shell area 13022 of the second front shell assembly part 1302 is located at the tail cover part 131. Specifically, the second front shell area 13022 is arranged along the outer periphery of the tail cover part 131, and the first front shell area 13021 and the second front shell area 13022 transition in an arc shape.

[0172] Furthermore, as shown in Figures 3 and 4, the rear shell 120 also has a second rear shell assembly portion 1202. Along the first direction X, from closer to the head shell to farther away, the second rear shell assembly portion 1202 includes a fourth rear shell region 12021 and a fifth rear shell region 12022. The fourth rear shell region 12021 of the rear shell 120 matches the first front shell region 13021 of the assembly portion. The fifth rear shell region 12022 of the rear shell 120 matches the second front shell region 13022 of the assembly portion.

[0173] When the rear shell 120 is connected to the front shell 130, the fourth rear shell region 12021 is connected to the first front shell region 13021, and the fifth rear shell region 12022 is connected to the second front shell region 13022, so that the first accommodating groove 120a and the second accommodating groove 130a jointly form the accommodating cavity 100a between the front shell 130 and the rear shell 120. After the second front shell region 13022 and the fifth rear shell region 12022 are connected, the tail cover portion 131 closes the end of the accommodating cavity 100a away from the head shell 110, thereby reducing the risk of foreign matter entering the accommodating cavity 100a.

[0174] Optionally, the front shell 130 may also be provided with a functional hole in the tail cover portion 131, through which the power cord 050 may be introduced into the accommodating chamber 100a, thereby supplying power to the accommodating chamber 100a. Optionally, the front shell 130 may also be provided with a ventilation hole in the tail cover portion 131, so that the ventilation hole enables gas exchange between the accommodating chamber 100a and the outside of the beauty instrument 001, thereby facilitating heat dissipation and pressure relief of the beauty instrument 001. Moreover, by providing the ventilation hole on the inclined tail cover portion 131, when the ventilation hole is an air outlet, when the beauty instrument 001 is used, that is, when performing radio frequency beauty treatment on the face, air can be blown obliquely downward to dissipate heat, thereby preventing hot air from blowing onto the user and other people nearby.

[0175] Furthermore, the outer wall surface of the first front shell region 13021 of the second front shell assembly portion 1302 is not coplanar with the outer wall surface of the front shell 130, so that a third step is formed between the first front shell region 13021 of the second front shell assembly portion 1302 and the outer wall of the front shell 130. When the rear shell 120 is connected to the front shell 130, the rear shell 120 is attached to the bottom wall of the third step, and the end of the rear shell 120 closest to the front shell 130 abuts the side wall of the third step. The bottom wall of the third step, i.e., the first front shell region 13021 of the second front shell assembly portion 1302, faces away from the outer periphery of the accommodating cavity 100a. The abutment of the rear shell 120 against the side wall of the third step can limit the movement of the rear shell 120 relative to the front shell 130 along the second direction Y.

[0176] Optionally, the second front shell assembly portion 1302 is provided with a second front shell engaging member 13023 in the first front shell region 13021, and the second rear shell assembly portion 1202 is provided with a second rear shell engaging member 12023 in the fourth rear shell region 12021. The second front shell assembly portion 1302 is provided with a third front shell engaging member 13024 in the second front shell region 13022, and the second rear shell assembly portion 1202 is provided with a third rear shell engaging member 12024 in the fifth rear shell region 12022. The second front shell engaging member 13023 engages with the second rear shell engaging member 12023, thereby relatively and fixedly connecting the first front shell region 13021 and the fourth rear shell region 12021 along the second direction Y. The third front shell engaging member 13024 is engaged with the third rear shell engaging member 12024 , so that the second front shell region 13022 and the fifth rear shell region 12022 are relatively fixedly connected along the first direction X.

[0177] Optionally, the second front shell engaging member 13023 is a locking hole, and the second rear shell engaging member 12023 is a buckle. The buckle can be elastically deformed to enter the locking hole, and after the buckle is locked in the locking hole, the buckle elastically recovers its shape to achieve the locking of the buckle and the locking hole.

[0178] Optionally, the second rear shell engaging member 12023 is a locking hole, and the third front shell engaging member 13024 is a buckle. The buckle can be elastically deformed to enter the locking hole, and after the buckle is locked in the locking hole, the buckle elastically recovers its shape to achieve the locking of the buckle and the locking hole.

[0179] In the present application, when assembling the head shell 110, the rear shell 120 and the front shell 130, the head shell 110 and the front shell 130 can be assembled first. The first front shell engaging member 13011 of the front shell 130 is snap-fitted with the second head shell engaging member 11321 of the head shell 110. The first front shell area 13021 of the front shell 130 is connected to the second head shell assembly part 1132 of the head shell 110, and the first front shell area 13021 and the second head shell assembly part 1132 are transitioned in an arc shape. An opening is formed between the tail cover part 131 and the head shell 110. The first accommodating groove 120a of the rear shell 120 is directed toward the front shell 130, and the rear shell 120 is driven to enter the opening formed between the tail cover part 131 and the head shell 110. The first rear shell assembly portion 1201 of the rear shell 120 is connected to the first head shell assembly portion 1131 of the head shell 110, and the second rear shell assembly portion 1202 of the rear shell 120 is connected to the second front shell assembly portion 1302 of the front shell 130. This connects the head shell 110 and the front shell 130 to the rear shell 120. The head shell 110 further fixes the relative positions of the front shell 130 and the head shell 110, so that the head shell 110, the front shell 130, and the rear shell 120 are relatively fixedly connected to form the accommodating cavity 100a.

[0180] Optionally, the second front shell assembly portion 1302 is provided with a second front shell fitting in the first front shell region 13021, and the second rear shell assembly portion 1202 is provided with a second rear shell fitting in the fourth rear shell region 12021. The second front shell assembly portion 1302 is provided with a third front shell fitting in the second front shell region 13022, and the second rear shell assembly portion 1202 is provided with a third rear shell fitting in the fifth rear shell region 12022. The second front shell fitting fits tightly with the second rear shell fitting, allowing the first front shell region 13021 and the fourth rear shell region 12021 to be relatively fixedly connected along the second direction Y. The third front shell fitting fits snugly with the third rear shell fitting, allowing the second front shell region 13022 and the fifth rear shell region 12022 to be relatively fixedly connected along the first direction X.

[0181] Optionally, the second front shell fitting piece is a magnetic piece, and the second rear shell fitting piece is a magnetic piece. The second front shell fitting piece and the second rear shell fitting piece can be magnetically engaged. Optionally, the second front shell fitting piece is an adhesive piece, and the second rear shell fitting piece is an adhesive surface. The second front shell fitting piece and the second rear shell fitting piece can be adhesively engaged.

[0182] Optionally, the third front shell fitting piece is a magnetic piece, and the third rear shell fitting piece is a magnetic piece. The third front shell fitting piece and the third rear shell fitting piece can be magnetically engaged. Optionally, the third front shell fitting piece is an adhesive piece, and the third rear shell fitting piece is an adhesive surface. The third front shell fitting piece and the third rear shell fitting piece can be adhesively engaged.

[0183] Please refer to Figures 2 and 4 in combination. The control component includes a main control board 310, which is connected to the air source component 500 and is used to control the opening or closing of the air flow drive component and / or to control the air path switching module 520 to switch between the negative pressure mode and the deflation mode.

[0184] Optionally, the main control board 310 is part of the main body 010. The main control board 310 is disposed within the accommodating cavity 100a and can be connected to the RF electrode 420, the air pump 510, the button block 721, and the like. In some embodiments, the main control board 310 is electrically connected to the first electrical connector 240, thereby electrically connecting to the RF electrode 420 via the first electrical connector 240 and the second electrical connector 470.

[0185] Optionally, the front housing 130 is provided with a first locking groove 132. One side of the main control board 310 is locked in the first locking groove 132. The rear housing 120 is provided with a second locking groove 122. The side of the main control board 310 facing away from the front housing 130 is locked in the second locking groove 122. The first locking groove 132 and the second locking groove 122 can restrict the relative position of the main control board 310 and the outer housing 100, thereby securing the main control board 310.

[0186] To assemble the main control board 310 into the accommodating cavity 100a, first secure one side of the main control board 310 in the first securing groove 132. Then, move the rear housing 120 closer to the front housing 130 along the second direction Y. At this point, align the main control board 310 with the second securing groove 122. When the front housing 130 and rear housing 120 are fully assembled, the side of the main control board 310 facing away from the front housing 130 is also secured in the second securing groove 122.

[0187] Figure 6 shows a schematic structural diagram of the connection module 200 and the head shell 110 of the beauty device 001 in one embodiment of the present application. Figure 7 shows a schematic structural diagram of the connection module 200 of the beauty device 001 in one embodiment of the present application.

[0188] 6 and 7 , the main body 010 further includes a connecting module 200 (see FIG. 2 ). The connecting module 200 is connected to the head shell 110 and exposed from the head shell 110 so as to be detachably connected to the beauty head 030.

[0189] The connection module 200 includes a connection inner shell 210 and a first electrical connector 240 ; the first electrical connector 240 is mounted on the connection inner shell 210 , and the connection inner shell 210 is mounted on the head shell 110 , so that the connection module 200 is mounted as a whole on the head shell 110 .

[0190] Referring to Figures 6 and 7 , the inner housing 210 includes an inner base plate 211 and an inner panel 212. The inner panel 212 is positioned on one side of the inner base plate 211, and the inner panel 212 and the inner base plate 211 form a mounting groove 212a. The inner base plate 211 forms the bottom of the mounting groove 212a. The head housing 110 has an opening, and the mounting groove 212a is exposed through the opening of the head housing 110.

[0191] When the beauty device 001 is in use, the opening of the head shell 110 faces the user's skin (e.g., facial skin). The bottom wall of the assembly groove 212a forms a first assembly surface 212b. The first assembly surface 212b is designed to mate with the second assembly surface 412a of the beauty head 030. The assembly groove 212a, which is connected to the inner shell 210, is used to insert the beauty head 030, thereby improving the installation stability of the beauty head 030.

[0192] The head shell 110 is provided with an inwardly facing inner flange 114 at the opening. This inner flange 114 is formed on the base plate 110b mentioned above. The end of the inner panel 212 facing away from the inner base plate 211 abuts against the inner flange 114 of the head shell 110. The inner flange 114 of the head shell 110 restricts the connecting inner shell 210 from extending out of the head shell 110 along the first inclined direction U and serves to conceal the connecting inner shell 210, thereby improving waterproof performance.

[0193] When the beauty head 030 needs to be installed in the assembly groove 212a, the beauty head 030 first passes through the opening of the head shell 110 and then is installed in the assembly groove 212a. It is understood that the head shell 110 and the connecting inner shell 210 can also be integrally formed to ensure that the head shell 110 and the connecting inner shell 210 are relatively fixed and reduce the number of assembly steps.

[0194] The head shell 110 also has a stop member 115. The stop member 115 is used to limit the connection inner shell 210 from being away from the opening along the first tilt direction U. Optionally, the stop member 115 is a stop protrusion, which protrudes from the enclosure body 111 in the installation cavity 110a, that is, the stop protrusion is provided on the inner side of the enclosure body 111. When the connection inner shell 210 is provided in the installation cavity 110a of the head shell 110, the stop protrusion is located on the side of the inner base plate 211 away from the opening of the head shell 110, and the inner base plate 211 is abutted by the stop protrusion. The inner enclosure 212 is contacted or abutted by the inner flange 114, and the inner base plate 211 is abutted by the stop protrusion, so that the position of the connection inner shell 210 relative to the head shell 110 along the first tilt direction U is limited. When the beauty head 030 is inserted into the connecting inner shell 210 and force is applied to the connecting inner shell 210 , the connecting inner shell 210 is not easily moved along the first tilting direction U relative to the head shell 110 .

[0195] Specifically, the inner contour of the mounting cavity 110a is non-circular, and the outer contour of the connecting inner shell 210 is also non-circular, so that when the connecting inner shell 210 is arranged in the head shell 110, the connecting inner shell 210 is not easy to rotate relative to the head shell 110 around the axis of the first tilt direction U.

[0196] Optionally, the inner contour of the mounting cavity 110a is roughly square, and the outer contour of the connecting inner shell 210 is roughly square, so that when the connecting inner shell 210 is arranged in the head shell 110, the connecting inner shell 210 is not easy to rotate relative to the head shell 110 around the axis of the first tilt direction U.

[0197] Specifically, the inner contour of the assembly slot 212a is non-circular, and the outer contour of the portion of the beauty head 030 that fits into the assembly slot 212a is also non-circular. This ensures that when the portion of the beauty head 030 that fits into the assembly slot 212a is disposed within the head shell 110, the portion of the beauty head 030 that fits into the assembly slot 212a is not easily rotated relative to the head shell 110 about the axis of the first tilting direction U. Alternatively, the inner contour of the assembly slot 212a is substantially square, and the outer contour of the portion of the beauty head 030 that fits into the assembly slot 212a is substantially square. This ensures that when the portion of the beauty head 030 that fits into the assembly slot 212a is disposed within the head shell 110, the portion of the beauty head 030 that fits into the assembly slot 212a is not easily rotated relative to the head shell 110 about the axis of the first tilting direction U.

[0198] In some embodiments, the connection module 200 further includes a locking structure 220 . The locking structure 220 includes a locking assembly 221 .

[0199] Specifically, the locking assembly 221 is used to connect the beauty head 030 when the first assembly surface 212b contacts or abuts the second assembly surface 412a, thereby preventing the beauty head 030 from moving away from the connection module 200 and the main body 010. Thus, the locking assembly 221 can be provided to achieve the connection between the beauty head 030 and the main body 010.

[0200] In one embodiment, optionally, the locking assembly 221 is used to engage with the beauty head 030 when the first assembly surface 212b contacts or abuts the second assembly surface 412a to limit the beauty head 030 from being away from the connection module 200. In this way, the beauty head 030 and the main body 010 can be limited by engaging, which facilitates assembly and disassembly.

[0201] Among them, the locking assembly 221 includes a snap-fitting portion, and the beauty head 030 is provided with a snap-fitting portion 4123; the snap-fitting portion is provided on the first assembly surface 212b, and the snap-fitting portion 4123 is provided on the second assembly surface 412a; when the first assembly surface 212b contacts or abuts the second assembly surface 412a, the snap-fitting portion cooperates with the snap-fitting portion 4123 and limits the relative position of the beauty head 030 and the main body 010.

[0202] Furthermore, the connection module 200 further includes an unlocking component 222, which is used to release the cooperation between the locking component 221 and the beauty head 030. In this way, disassembly and assembly can be achieved.

[0203] Specifically, the unlocking assembly 222 acts on the locking assembly 221. When the unlocking assembly 222 is pressed, the unlocking assembly 222 drives the engaging portion and / or the engaging portion 4123 to slide, thereby releasing the engagement between the locking assembly 221 and the engaging portion 4123. This improves the correlation between the unlocking assembly 222 and the locking assembly 221, simplifying the design.

[0204] In another embodiment, optionally, the locking assembly 221 is used to magnetically attract the beauty head 030 when the first assembly surface 212 b contacts or abuts the second assembly surface 412 a , so as to prevent the beauty head 030 from moving away from the connection module 200 .

[0205] In a specific embodiment, the locking assembly 221 is used to cooperate with the clamping portion 4123 of the beauty head 030 to limit the relative movement between the beauty head 030 and the connecting inner shell 210 (along the first tilting direction U, i.e., the detachable direction).

[0206] In one embodiment, the locking structure 220 further includes an unlocking assembly 222. The unlocking assembly 222 is used to release the engagement between the locking assembly 221 and the engaging portion 4123, allowing the beauty head 030 to move relative to the inner housing 210 along the first tilting direction U, thereby removing the beauty head 030 from the assembly slot 212a along the first tilting direction U.

[0207] Specifically, the connection module 200 is provided with an assembly groove 212a, and the first airflow connection part 232 is provided at the bottom of the assembly groove 212a. The bottom of the assembly groove 212a forms a first assembly surface 212b. The beauty head 030 is installed in the assembly groove 212a, and the first assembly surface 212b contacts or abuts the second assembly surface 412a.

[0208] Optionally, the connection module 200 may further include a pop-up member, which is used to drive the beauty head 030 away from the connection module 200 after the unlocking component 222 releases the cooperation between the locking component 221 and the beauty head 030.

[0209] Specifically, the ejection element includes a first magnetic element and a second magnetic element. The first magnetic element is disposed on the connecting inner housing 210, and the second magnetic element is disposed on the mounting housing 410. The first and second magnetic elements repel each other, causing the beauty head 030 to move away from the connecting module 200. It is understood that the ejection element can also be a spring, disposed on the connecting inner housing 210 or the mounting housing 410. When the mounting housing 410 is installed in the assembly slot 212a, the spring is compressed, causing the spring to store elastic potential energy.

[0210] It is understood that the locking assembly 221 may also include a first magnetic locking member and a second magnetic locking member. The first magnetic locking member is provided on the main body 010, and the second magnetic locking member is provided on the beauty head 030. When the beauty head 030 approaches the main body 010, the main body 010 magnetically attracts the beauty head 030 through the magnetic attraction of the first and second magnetic locking members, thereby preventing the beauty head 030 from moving away from the main body 010.

[0211] FIG8 shows a schematic structural diagram of the connection module 200 from another perspective in one embodiment of the present application.

[0212] 7 and 8 , in an exemplary embodiment, the locking assembly 221 optionally includes a movable stopper 2211 and a locking elastic member 2212. The movable stopper 2211 has a locking portion 4123. The movable stopper 2211 is slidably engaged with the connecting inner shell 210, i.e., the movable stopper 2211 is slidably mounted on the connecting inner shell 210. The movable stopper 2211 has a locked position in which the locking portion 4123 is engaged with the engaging portion through the buckling movable hole 2112, and an unlocked position in which the locking portion 4123 is detachable from the engaging portion, so that the beauty head 030 can be installed by moving the movable stopper 2211.

[0213] Specifically, the movable stopper 2211 is slidably disposed on the inner side of the bottom of the assembly groove 212a. The bottom of the assembly groove 212a is provided with a snap-fitting hole 2112. The movable stopper 2211 has an engaging portion disposed at the snap-fitting hole 2112. A snap-fitting portion 4123 is provided on the second assembly surface 412a. The movable stopper 2211 has a locked position, in which the snap-fitting portion 4123 engages with the engaging portion through the snap-fitting hole 2112, and an unlocked position, in which the snap-fitting portion 4123 is detachable from the engaging portion. Thus, the present invention utilizes the larger space within the bottom of the assembly groove 212a to facilitate the placement of the movable stopper 2211 and provide space for its movement, thereby simplifying the design. Furthermore, by driving the movable stopper 2211 to move, the beauty head 030 and the main body 010 can be locked or unlocked.

[0214] Specifically, the surface of the inner base plate 211 facing away from the inner panel 212 forms a sliding surface 2111. Optionally, the sliding surface 2111 is perpendicular to the first inclination direction U. The movable stopper 2211 can slide along the sliding surface 2111, thereby moving relative to the beauty head 030. It is understood that the movable stopper 2211 can also be guided by other components to guide its movement. For example, the movable stopper 2211 can also be guided by the surface of the inner base plate 211 that is closer to the inner panel 212.

[0215] The movable stopper 2211 is provided with a snap-fitting portion. The snap-fitting portion is protruding from the surface of the movable stopper 2211 and is movably disposed within the snap-fitting hole 2112 in the sliding direction to engage with the snap-fitting portion 4123. Optionally, the snap-fitting portion is configured to slide along the sliding surface 2111 with the movable stopper 2211 and engage with the snap-fitting portion 4123, thereby engaging the movable stopper 2211 with the beauty head 030.

[0216] Optionally, the engaging portion includes a hook 22111. The engaging portion 4123 includes a slot 41231. A movable buckle hole 2112 is formed on the inner base plate 211 connected to the inner shell 210. The hook 22111 extends through the movable buckle hole 2112 toward a side of the inner shell 210 where the assembly slot 212a is provided. Optionally, the movable buckle hole 2112 extends in one direction, i.e., it has a certain length to avoid the hook 22111 and the engaging portion 4123, so that the hook 22111 inserted into the movable buckle hole 2112 can move relative to the movable stopper 2211 in a sliding direction. The movable stopper 2211 slides along the sliding surface 2111, allowing the hook 22111 to enter the slot 41231. When the hook 22111 enters the slot 41231, the hook 22111 acts on the inner wall of the slot 41231, thereby limiting the beauty head 030 from being separated from the inner shell 210 along the first inclined direction U. At this time, the beauty head 030 and the main body 010 are connected, facilitating the coordination between the main body 010 and the beauty head 030, thereby achieving communication between the negative pressure groove 4111 and the main body 010 for generating negative pressure, and the radio frequency electrode 420 is electrically connected to the main body 010 so that the main body 010 provides electrical energy to the radio frequency electrode 420.

[0217] Optionally, the movable limiting member 2211 slides on the sliding surface 2111 along a sliding direction, that is, a second inclined direction V. The second inclined direction V is perpendicular to the first inclined direction U.

[0218] Furthermore, a guide member 213 is protruding from the inner side surface (ie, the sliding surface 2111 ) of the bottom of the assembly groove 212 a . The guide member 213 defines a sliding groove structure, and the movable limiting member 2211 is slidably disposed in the sliding groove structure.

[0219] Specifically, the guide member 213 clamps onto both sides of the movable stopper 2211 perpendicular to the second tilting direction V, thereby restricting the movable stopper 2211 from sliding relative to the connected inner housing 210 in the second tilting direction V and preventing it from deflecting. A barb 2131 is provided on the end of the guide member 213 facing away from the sliding surface 2111. The barb 2131 extends toward the movable stopper 2211 and acts on the end of the movable stopper 2211 facing away from the sliding surface 2111, preventing the movable stopper 2211 from separating from the sliding surface 2111 in the first tilting direction U.

[0220] Optionally, the guide member 213 is an elastic element, and deformation of the guide member 213 enables the barbs 2131 to move relative to the sliding surface 2111. When the guide members 213 on both sides of the movable stopper 2211 are deformed, the barbs 2131 on both sides of the movable stopper 2211 can be moved away from each other, facilitating assembly of the movable stopper 2211 on the sliding surface 2111. As the movable stopper 2211 contacts the sliding surface 2111, the barbs 2131 return to their positions due to deformation of the guide member 213 and are located at the end of the movable stopper 2211 facing away from the sliding surface 2111, thereby restricting the movable stopper 2211 from disengaging from the sliding surface 2111 along the first inclined direction U. It is understandable that the guide member 213 is an elastic element, enabling it to deform elastically. As the guide member 213 deforms, the amount of deformation at the end of the guide member 213 away from the sliding surface 2111 is greater than the amount of deformation at the end closer to the sliding surface 2111. Therefore, the deformation of the guide member 213 allows the barb 2131 to generate sufficient displacement to facilitate assembly of the movable stopper 2211 and connection with the inner shell 210, while also ensuring that the end of the guide member 213 close to the sliding surface 2111 is almost free of deformation, so that the guide member 213 can still limit the displacement of the movable stopper 2211 in a direction perpendicular to the second tilting direction V. The guide member 213 can be formed of an elastic material to form an elastic element.

[0221] Optionally, a locking elastic member 2212 is disposed at one end of the movable limiting member 2211 along the second tilting direction V. One end of the locking elastic member 2212 abuts the connecting inner shell 210, and the other end abuts the movable limiting member 2211. The locking elastic member 2212 can drive the movable limiting member 2211 to slide relative to the connecting inner shell 210 along the second tilting direction V. The connecting inner shell 210 includes a resisting member 214 disposed on the sliding surface 2111. The resisting member 214 protrudes from the sliding surface 2111. The locking elastic member 2212 is disposed between the resisting member 214 and the movable limiting member 2211. The locking elastic member 2212 may be a compression spring to drive the movable limiting member 2211 away from the resisting member 214 along the second tilting direction V. A guiding slope 22112 is disposed at the end of the hook 22111, and the guiding slope 22112 is inclined relative to the sliding surface 2111. After the beauty head 030 is installed in the assembly groove 212a along the first inclined direction U and contacts the guiding slope 22112, the beauty head 030 continues to move closer to the first assembly surface 212b along the inclined direction, acting on the guiding slope 22112 of the hook 22111, driving the hook 22111 toward the abutting member 214 along the second inclined direction V. At this time, the movable stopper 2211 and the abutting member 214 jointly compress the locking elastic member 2212. As the beauty head 030 continues to move closer to the first assembly surface 212b along the first inclined direction U, aligning the hook 22111 with the locking groove 41231 of the beauty head 030, the locking elastic member 2212 restores its shape, causing the hook 22111 to move away from the abutting member 214 along the second inclined direction V and enter the locking groove 41231, thereby locking the beauty head 030 and the connecting inner housing 210 along the first inclined direction U.

[0222] FIG9 is a schematic diagram showing the structure of the connection module 200 of the beauty device 001 in one embodiment of the present application, wherein the unlock button 2221 is pressed to drive the movable stopper 2211 toward the abutting member 214. FIG10 is a schematic diagram showing the structure of the connection module 200 of the beauty device 001 in one embodiment of the present application, wherein the unlock button 2221 is not pressed, and the locking elastic member 2212 restores its shape to drive the movable stopper 2211 away from the abutting member 214.

[0223] Referring to Figures 9 and 10 , the movable stopper 2211 can optionally be provided with a guide groove 22113. The locking elastic member 2212 extends into the guide groove 22113, and the inner wall of the guide groove 22113 can contact the locking elastic member 2212, thereby limiting deformation of the locking elastic member 2212. When the movable stopper 2211 slides relative to the connecting inner housing 210 along the second inclined direction V, the movable stopper 2211 and the abutting member 214 jointly compress the locking elastic member 2212. The inner wall of the guide groove 22113 minimizes deformation of the locking elastic member 2212 along the second inclined direction V, thereby generating an elastic force as parallel to the second inclined direction V as possible. When the locking elastic member 2212 releases and returns to its original shape to drive the elastic member to slide relative to the connecting inner housing 210, the elastic force of the locking elastic member 2212 is as parallel to the second inclined direction V as possible, thereby reducing the sliding of the movable stopper 2211.

[0224] Fig. 11 shows a schematic structural diagram of the connection module 200 from another perspective in one embodiment of the present application. Fig. 12 shows a partial enlarged view of the area B in Fig. 11 .

[0225] 7 , 11 , and 12 , the unlocking assembly 222 is used to drive the movable stopper 2211 to overcome the elastic force of the locking elastic member 2212 and move closer to the abutting member 214 along the second inclined direction V. During this process, the hook 22111 disengages from the locking slot 41231 along the second inclined direction V, thereby releasing the lock between the beauty head 030 and the connecting inner housing 210 along the first inclined direction U.

[0226] Optionally, the unlocking assembly 222 includes an unlocking button 2221 and an unlocking elastic member 2222. One end of the unlocking button 2221 extends out of the outer housing 100, and the other end is inserted into the mounting cavity 110a to drive the movable stopper 2211 to slide. One end of the unlocking elastic member 2222 acts on the unlocking button 2221, while the other end acts on the connecting inner housing 210. The unlocking elastic member 2222 applies an elastic force to the unlocking button 2221 away from the movable stopper 2211, causing the unlocking button 2221 to move away from the movable stopper 2211. To remove the beauty head 030 from the connecting inner housing 210, the user can press the unlocking button 2221, which in turn applies pressure to the movable stopper 2211, overcoming the locking elastic member 2212. The movable stopper 2211 approaches the abutting member 214 along the second inclined direction V, causing the hook 22111 to gradually disengage from the latching slot 41231. When the hook 22111 is disengaged from the slot 41231 , the locking between the beauty head 030 and the connecting inner shell 210 along the first tilting direction U is released, and the user can remove the beauty head 030 from the connecting inner shell 210 .

[0227] Optionally, the head shell 110 is provided with a button hole 1101, through which the unlock button 2221 extends out of the head shell 110, so that a user can press the unlock button 2221. The inner wall of the mounting cavity 110a forms a guide arc surface 1103 on the side where the button hole 1101 is provided. When the connecting inner shell 210 and the locking structure 220 of the connecting module 200 are assembled together into the mounting cavity 110a, the guide arc surface 1103 abuts the unlock button 2221 until the unlock button 2221 aligns with the button hole 1101 and extends out of the button hole 1101.

[0228] Optionally, the unlocking assembly 222 further includes a transmission member 2223. The unlocking button 2221 acts on the movable stopper 2211 through the transmission member 2223 to drive the movable stopper 2211 to move along the second tilt direction V. The transmission member 2223 is movably connected to the connecting inner shell 210. Driven by the unlocking button 2221 or the movable stopper 2211, the transmission member 2223 moves relative to the connecting inner shell 210. The connecting inner shell 210 is provided with a positioning shaft 2113 on the sliding surface 2111. The transmission member 2223 has a first transmission end 22231 and a second transmission end 22232 that are opposite to each other. The first transmission end 22231 of the transmission member 2223 is sleeved on the positioning shaft 2113 and can rotate around the positioning shaft 2113 relative to the connecting inner shell 210. The second transmission end 22232 of the transmission member 2223 can abut the movable stopper 2211, thereby pushing the movable stopper 2211 toward the abutting member 214. The unlock button 2221 includes a push rod 22211, which is disposed toward the transmission member 2223. When a user presses the unlock button 2221, the push rod 22211 of the unlock button 2221 can rotate the transmission member 2223, causing the transmission member 2223 to push the movable stopper 2211 toward the abutting member 214. The push rod 22211 acts on the region of the transmission member 2223 between the first transmission end 22231 and the second transmission end 22232, forming a lever. The displacement of the push rod 22211 along the second tilt direction V is amplified by the transmission member 2223 before acting on the movable stopper 2211.

[0229] Optionally, the movable limiting member 2211 includes an arc transmission surface 22114. The second transmission end 22232 of the transmission member 2223 slides with the arc transmission surface 22114. When the transmission member 2223 rotates around the positioning shaft 2113, the second transmission end 22232 of the transmission member 2223 acts on the arc transmission surface 22114 and pushes the movable limiting member 2211 to slide. The arc motion path of the second transmission end 22232 and the linear motion path of the movable limiting member 2211 are matched through the relative sliding of the second transmission end 22232 and the arc transmission surface 22114. The arc transmission surface 22114 allows the second transmission end 22232 and the movable limiting member 2211 to slide smoothly relative to each other, and the user has a better sense of sensation when pressing the unlock button 2221 to drive the movable limiting member 2211 to move.

[0230] Optionally, the transmission member 2223 includes a plurality of centering arms 22233. The transmission member 2223 has a transmission hole. The positioning shaft 2113 passes through the transmission hole, so that the plurality of centering arms 22233 abut the positioning shaft 2113, thereby allowing the transmission member 2223 to be rotatably connected relative to the inner shell 210 about the positioning shaft 2113. The plurality of centering arms 22233 are circumferentially arranged within the transmission hole, and the centering arms 22233 extend from the inner wall of the transmission hole toward the axis of the transmission hole. When the positioning shaft 2113 passes through the transmission hole, the plurality of centering arms 22233 are circumferentially arranged around the outer periphery of the positioning shaft 2113, and each centering arm 22233 abuts the positioning shaft 2113. Each centering arm 22233 is arranged at an angle to the radial direction of the transmission hole, that is, the centering arms 22233 are arranged at an angle to the radial direction of the positioning shaft 2113. Each centering arm 22233 has an arcuate abutment surface 222331 for abutting the positioning shaft 2113. This arcuate abutment surface 222331 increases the contact area between the centering arm 22233 and the positioning shaft 2113, improving the stability of the transmission member 2223 and the positioning shaft 2113 when mated. The centering arm 22233 elastically abuts the positioning shaft 2113, exerting an elastic force on the positioning shaft 2113. This allows the transmission member 2223 to elastically return to its original position after deflecting from the positioning shaft 2113.

[0231] Optionally, each centering arm 22233 includes a first arm segment 222332 and a second arm segment 222333. The first arm segment 222332 extends from the inner wall of the transmission hole approximately along the radial direction of the transmission hole. The second arm segment 222333 extends from the end of the first arm segment 222332 that is away from the inner wall of the transmission hole approximately along the circumferential direction of the transmission hole. A deformation groove can be formed between the second arm segment 222333, the first arm segment 222332 and the inner wall of the transmission hole. When the second arm segment 222333 is squeezed, it can deform in the direction of the deformation groove. An abutting arc surface 222331 is provided at the end of the second arm segment 222333 that is away from the first arm segment 222332, and the second arm segment 222333 abuts against the positioning shaft 2113 through the abutting arc surface 222331.

[0232] Optionally, there are three centering arms 22233. The three centering arms 22233 are evenly arranged around the axis of the transmission hole.

[0233] Optionally, the transmission member 2223 further includes a limiting protrusion 22234. The limiting protrusion 22234 is located between the first transmission end 22231 and the second transmission end 22232. The push rod 22211 of the unlocking button 2221 acts on the side of the limiting protrusion 22234 facing the first transmission end 22231. The side of the limiting protrusion 22234 facing the first transmission end 22231 has a guide arc surface 22235. When the push rod 22211 pushes the transmission member 2223 to rotate about the positioning axis 2113, the push rod 22211 slides along the guide arc surface 22235. The linear motion of the push rod 22211 pushes the transmission member 2223 to rotate smoothly about the positioning axis 2113.

[0234] Optionally, one end of the unlocking elastic member 2222 is connected to the unlocking button 2221, and the other end is connected to the fixing post 217. When the user presses the unlocking button 2221, the unlocking button 2221 presses the unlocking elastic member 2222 toward the fixing post 217, causing the unlocking elastic member 2222 to deform and store elastic potential energy. When the user stops pressing the unlocking button 2221, the unlocking elastic member 2222 releases the elastic potential energy, driving the unlocking button 2221 away from the fixing post 217, returning to the position before the button was pressed.

[0235] The unlocking elastic member 2222 includes an elastic arm 22221 and a limiting clip 22222. One end of the elastic arm 22221 is connected to the unlocking button 2221, and the other end is connected to the limiting clip 22222. The limiting clip 22222 abuts against the fixed post 217. The limiting clip 22222 can also rotate around the fixed post 217. The elastic arm 22221 includes a first section 22223 and a second section 22224. The first section 22223 extends from the unlocking button 2221 to the side of the fixed post 217 facing away from the unlocking button 2221. The second section 22224 extends from the end of the first section 22223 toward the fixed post 217. The second section 22224 is curved, which reduces stress concentration at various locations on the elastic arm 22221 when the elastic arm 22221 deforms, thereby increasing the service life of the elastic arm 22221. The elastic arm 22221 causes the limiting clip 22222 to tend to move toward the push rod 22211. When the limiting clip 22222 abuts against the side of the fixed post 217 facing away from the push rod 22211, the elastic arm 22221 enables the limiting clip 22222 to exert an elastic force on the fixed post 217, thereby improving the stability of the connection between the limiting clip 22222 and the fixed post 217. The limiting clip 22222 is roughly semicircular in shape and has a linear extension 22225 at the end near the unlock button 2221. When the unlock button 2221 drives the unlocking elastic member 2222 to deform, the limiting clip 22222 rotates around the fixed post 217, and the end of the limiting clip 22222 near the unlock button 2221 exerts greater pressure on the fixed post 217, which puts the end of the limiting clip 22222 near the unlock button 2221 at risk of deformation. The straight extension section 22225 can further reduce the risk of the limiting clip 22222 being deformed and separated from the fixing column 217 .

[0236] Optionally, there are two unlocking elastic members 2222. The two unlocking elastic members 2222 are symmetrically arranged on both sides of the unlocking button 2221. The elastic arm 22221 of each unlocking elastic member 2222 causes the limiting clip 22222 to have a tendency to move toward the other unlocking elastic member 2222.

[0237] FIG13 shows a partial cross-sectional view of the beauty device 001 in one embodiment of the present application.

[0238] Referring to Figures 7, 8, and 13, the connection module 200 optionally further includes an airflow connector 230. The airflow connector 230 includes a fixed base 231 and the aforementioned first airflow connector 232. The first airflow connector 232 is a tubular airflow connector. The fixed base 231 is fixedly connected to the first airflow connector 232. The first airflow connector 232 is provided with a first airway hole 232a.

[0239] Please refer to FIG. 7 , FIG. 8 and FIG. 13 . Optionally, the fixing base 231 is connected to the connecting inner shell 210 .

[0240] The connecting inner housing 210 is provided with a plurality of connecting posts 215, each of which is provided with a threaded hole. The fixing base 231 has a plurality of connecting through-holes. Bolts passing through the connecting through-holes and then threadedly engaging with the threaded holes of the connecting posts 215 secure the fixing base 231 and the connecting inner housing 210 relative to each other, thereby securing the first airflow connection portion 232 relative to the connecting inner housing 210.

[0241] Optionally, the three connecting columns 215 are located at the three vertices of a triangle. The three connecting columns 215 can be located at the three vertices of a triangle (such as an isosceles triangle) to provide relatively uniform support force. The fixed base 231 is roughly triangular. The fixed base 231 is provided with a connecting through hole at each corner of the triangle to correspond to each connecting column 215. The fixed base 231 and the connecting inner shell 210 are connected by three bolts to improve the stability of the connection between the fixed base 231 and the connecting inner shell 210. The first airflow connection part 232 is located between the three connecting through holes on the fixed base 231. When the first airflow connection part 232 is subjected to external force, the external force can be transmitted roughly evenly to the bolts corresponding to the three connecting through holes through the fixed base 231. Each bolt limits the movement of the airflow connector 230 relative to the connecting inner shell 210, so that the relative position relationship between the airflow connector 230 and the connecting inner shell 210 can remain stable.

[0242] Optionally, the airflow connection member 230 further includes a reinforcing rib 233 , which connects the fixed base 231 and the first airflow connection portion 232 to improve the stability of the first airflow connection portion 232 .

[0243] Optionally, the connecting inner housing 210 is provided with an airflow connection hole 2101. The first airflow connection portion 232 is an airflow connection tube. It is exposed from the first assembly surface 212b to the main body 010 through the airflow connection hole 2101 and further extends into the assembly slot 212a, allowing the first airway hole 232a to extend into the assembly slot 212a. When the grooming head 030 is installed in the assembly slot 212a, it connects with the portion of the first airflow connection portion 232 that extends into the assembly slot 212a, thereby establishing airflow communication between the grooming head 030 and the main body 010. Optionally, the first airflow connection portion 232 extends along the first inclined direction U.

[0244] Optionally, the airflow connector 230 further includes a sealing ring 234. The sealing ring 234 is disposed around the outer periphery of the first airflow connector 232. When the first airflow connector 232 is connected to the grooming head 030, the sealing ring 234 fills the gap between the grooming head 030 and the outer periphery of the first airflow connector 232, improving airtightness and thereby ensuring or enhancing air extraction efficiency.

[0245] Optionally, there are two sealing rings 234 , and the two sealing rings 234 are spaced apart along the extending direction of the first airflow connection portion 232 , thereby enhancing the sealing effect.

[0246] Specifically, the sealing ring 234 is mounted on the portion of the first airflow connection portion 232 located within the assembly groove 212a. Optionally, the portion of the first airflow connection portion 232 located within the assembly groove 212a is provided with two annular grooves 2321. The sealing ring 234 is partially accommodated within the annular grooves 2321 and protrudes beyond the annular grooves 2321 to fill the gap between the beauty head 030 and the outer periphery of the first airflow connection portion 232.

[0247] Optionally, the movable limiting member 2211 is provided with a clearance hole 2211a. Along the sliding direction, the size of the clearance hole 2211a is larger than the size of the first airflow connection portion 232. The first airflow connection portion 232 extends into the assembly groove 212a after passing through the clearance hole 2211a and the airflow connection hole 2101. As the movable limiting member 2211 slides along the second inclined direction V, the clearance hole 2211a also moves along the second inclined direction V. Along the second inclined direction V, the size of the clearance hole 2211a is larger than the size of the first airflow connection portion 232, which can prevent the movable limiting member 22111 from touching the first airflow connection portion 232 when sliding.

[0248] Optionally, the connecting inner shell 210 further includes an exhaust port 216. The exhaust port 216 corresponds to the clearance hole 2211a. When the beauty head 030 and the connecting inner shell 210 are assembled, an exhaust channel is formed between the beauty head 030 and the connecting inner shell 210, and the exhaust channel is connected to the exhaust port 216. Specifically, an exhaust channel is formed between the second assembly surface 412a and the first assembly surface 212b. The exhaust channel is connected to the airflow driving member to exhaust the gas driven by the airflow driving member. When the beauty instrument 001 is exhausting, the gas can be discharged through the path from the exhaust port 216 to the exhaust channel. In this way, by arranging the exhaust port 216 in the connecting inner shell 210, the end of the airflow driving member with the inlet and outlet can be arranged toward the beauty head 030, thereby simplifying the air path design.

[0249] Optionally, the exhaust port 216 protrudes from the sliding surface 2111 to facilitate connection to an exhaust duct. Along the second tilt direction V, the size of the clearance hole 2211a is larger than the combined size of the first airflow connection portion 232 and the exhaust port 216. This prevents the movable stopper 2211 from contacting the first airflow connection portion 232 or the exhaust port 216 during sliding. An exhaust gap 212c is formed between the outer periphery of the beauty head 030 and the sidewall of the assembly groove 212a. This gap 212c is connected to the exhaust channel, allowing gas to flow through the exhaust channel to the exhaust gap 212c and then exit the beauty instrument 001 through the exhaust gap 212c.

[0250] It is understood that the exhaust gap 212c can be formed by providing a groove on the outer periphery of the mounting shell 410 of the beauty head 030, so that after the beauty head 030 is installed in the assembly groove 212a, the inner wall of the assembly groove 212a and the groove on the outer periphery of the mounting shell 410 form the exhaust gap 212c. The exhaust gap 212c is connected to the exhaust channel, allowing gas to be discharged from the beauty device 001. The exhaust gap 212c can also be formed by providing a groove on the inner wall of the assembly groove 212a, so that after the beauty head 030 is installed in the assembly groove 212a, the groove on the inner wall of the assembly groove 212a and the outer periphery of the mounting shell 410 form the exhaust gap 212c. The exhaust gap 212c is connected to the exhaust channel, allowing gas to be discharged from the beauty device 001. The exhaust gap 212c is formed between the beauty head 030 and the assembly groove 212a, so that when the beauty head 030 and the main body 010 are disassembled, the exhaust gap 212c can be cleaned by cleaning the outer periphery of the beauty head 030 and the inner wall of the assembly groove 212a.

[0251] Optionally, the exhaust port 216 includes a first hole segment 2161 and a second hole segment 2162, arranged sequentially. The first hole segment 2161 and the second hole segment 2162 are continuous and connected along the first oblique direction U. The end of the first hole segment 2161 facing away from the second hole segment 2162 is exposed from the first assembly surface 212b. In a cross section perpendicular to the extension direction of the exhaust port 216, that is, perpendicular to the first oblique direction U, the cross-sectional area of ​​the first hole segment 2161 is larger than the cross-sectional area of ​​the second hole segment 2162. The first hole segment 2161 has a larger cross-sectional area to facilitate connection to the air guide 4124 of the grooming head 030. The second hole segment 2162 has a smaller cross-sectional area to be exposed within the accommodating chamber 100a for connection to the duct, thereby connecting to the airflow driving member.

[0252] It is understandable that the exhaust port 216 may not be divided into the first hole segment 2161 and the second hole segment 2162 , so that the exhaust port 216 as a whole is cylindrical, flared or other shapes, and the exhaust port 216 can also be connected to the airflow driving member and the air guide member 4124 .

[0253] It is understandable that the location of the exhaust port 216 is not limited to being connected to the inner shell 210, that is, the main body 010 is provided with an exhaust port 216 for exhaust, such as being located at the tail.

[0254] It is understandable that if the main body 010 is not provided with the exhaust port 216 , exhaust can also be performed through the assembly gap of the main body 010 , for example, through the assembly gap between the first half shell and the second half shell.

[0255] FIG14 shows a schematic structural diagram of the head shell 110 and the connection module 200 in one embodiment of the present application, wherein the connection module 200 includes a main circuit board 250 .

[0256] Please refer to Figures 7 and 14 in combination. Optionally, the connection module 200 also includes a first electrical connector 240 and a main circuit board 250. The main circuit board 250 and the connection inner shell 210 are spaced apart along the first inclined direction U. The connection inner shell 210 is provided with a fixing column 217, which extends from the sliding surface 2111 along the first inclined direction U. The fixing column 217 is provided with a threaded hole. A fixing through-hole 251 is provided on the main circuit board 250 at a position corresponding to the fixing column 217. By passing a bolt through the fixing through-hole 251 and threadedly connected to the fixing column 217, the relative position of the main circuit board 250 and the connection inner shell 210 can be kept fixed. There are multiple fixing columns 217, and correspondingly, multiple fixing through-holes 251 are provided on the main circuit board 250. Connecting the main circuit board 250 and the fixing posts 217 with multiple bolts can improve the stability of the connection between the main circuit board 250 and the connecting inner shell 210 and prevent the main circuit board 250 from rotating relative to the connecting inner shell 210 around any of the fixing posts 217. The main circuit board 250 is electrically connected to the main control board 310. The main circuit board 250 and the main control board 310 can be electrically connected via a flexible wire. The flexible wire is disposed within the accommodating cavity 100a and is protected by the outer shell 100. When the user uses the beauty instrument 001, the flexible wire is not easily displaced by external forces, and the electrical connection between the main circuit board 250 and the main control board 310 can be maintained.

[0257] It is understandable that the first electrical connector 240 may also be an integrally formed conductor, such as a metal rod.

[0258] The connecting inner housing 210 is further provided with an electrical connection hole 218. One end of the first electrical connector 240 is connected to the main circuit board 250, while the other end passes through the electrical connection hole 218, emerging from the main body 010 through the first assembly surface 212b and further extending into the assembly slot 212a. Referring to Figure 2 , when the grooming head 030 is installed in the assembly slot 212a, it can contact the first electrical connector 240 installed in the assembly slot 212a. Thus, by providing the main circuit board 250 to mount the first electrical connector 240, the first electrical connector 240 is easily installed and secured, allowing the first electrical connector 240 to be exposed from the main body 010.

[0259] Optionally, there are multiple first electrical connectors 240. When the beauty head 030 contacts the multiple first electrical connectors 240, at least some of the first electrical connectors 240 are electrically connected to the beauty head 030, thereby electrically connecting the beauty head 030 to the main body 010. The main body 010 can provide power to the beauty head 030 and control its operation.

[0260] Optionally, the number of the second electrical connectors 470 is set to be multiple, so as to correspond one-to-one with the first electrical connectors 240 .

[0261] Optionally, there are multiple first electrical connectors 240, for example, ten. The multiple first electrical connectors 240 are divided into two groups, for example, five first electrical connectors 240 per group, with the two groups of first electrical connectors 240 located on either side of the movable stopper 2211. The main circuit board 250 is provided with a through-hole 252 between the two groups of first electrical connectors 240. The first airflow connector 232 and the exhaust port 216 are exposed through the through-hole 252, facilitating assembly of the first airflow connector 232 and the exhaust port 216 with other airway components.

[0262] Optionally, the first electrical connector 240 and / or the second electrical connector 470 is a PIN, which can facilitate maintaining electrical connection with the beauty head 030.

[0263] For ease of distinction, in the subsequent content, the PIN pin configured as the first electrical connector 240 is referred to as the "electrical connection PIN pin", and the PIN pin corresponding to the second electrical connector 470 is referred to as the "electrical control PIN pin".

[0264] The first electrical connector 240 includes a fixed needle segment 241 and a resiliently movable needle segment 242. The fixed needle segment 241 and the resiliently movable needle segment 242 slidably and elastically cooperate to adjust the size of the first electrical connector 240 along the first tilting direction U. The fixed needle segment 241 is connected to the main circuit board 250, and the resiliently movable needle segment 242 is installed into the assembly slot 212a through the electrical connection hole 218. When the beauty head 030 is installed into the assembly slot 212a and contacts the resiliently movable needle segment 242, the resiliently movable needle segment 242 is squeezed, causing the size of the first electrical connector 240 to decrease along the first tilting direction U. By adjusting the amount of expansion and contraction of each first electrical connector 240 along the first tilting direction U, the tolerance between the beauty head 030 and the main circuit board 250 is adjusted, thereby ensuring that each first electrical connector 240 maintains a stable connection with the beauty head 030.

[0265] It can be understood that the end of the elastic movable needle segment 242 facing away from the fixed needle segment 241 forms a first electrical contact, and the first electrical contact is used to cooperate with the beauty head 030 to achieve electrical connection with the beauty head 030.

[0266] Figure 15 shows a schematic structural diagram of a beauty head 030 in one embodiment of the present application. Figure 16 shows a schematic structural diagram of a housing 411 of a beauty head 030 in one embodiment of the present application.

[0267] Referring to Figures 15 and 16 , the grooming head 030 includes a mounting housing 410. The mounting housing 410 has a negative pressure end 410a and a connecting end 410b that oppose each other. The mounting housing 410 is provided with a negative pressure groove 4111 at the negative pressure end 410a. The connecting end 410b of the mounting housing 410 is designed to fit into the assembly groove 212a for connection to the main body 010. The mounting housing 410 also has a second airflow connection portion 4114 that communicates with the negative pressure groove 4111. The mounting housing 410 is designed to be removably connected to the main body 010.

[0268] Furthermore, the negative pressure groove 4111 and the second assembly surface 412 a are respectively located on two opposite sides of the mounting shell 410 .

[0269] Furthermore, the mounting housing 410 includes a housing 411 and a cover 412. The housing 411 forms an opening in a receiving cavity 4112 at the connection end 410b, and the cover 412 is mounted on the opening. Optionally, the cover 412 is connected to the housing 411 to cover the opening of the receiving cavity 4112. The surface of the cover 412 facing away from the housing 411 forms a second assembly surface 412a.

[0270] The second assembly surface 412 a is disposed on the outer side of the cover 412 , and the second electrical connector 470 is mounted on the cover 412 and exposed from the cover 412 .

[0271] The second airflow connection portion 4114 extends from the negative pressure substrate 41101 toward the cover 412 and is exposed from the cover 412 .

[0272] Understandably, for a beauty device 001 that utilizes negative pressure to absorb skin, negative pressure tank 4111 is more likely to absorb dirt after the device 001 is finished operating. By making the beauty head 030 detachable from the main body 010, the beauty head 030 can be removed and only cleaned, making cleaning the negative pressure tank 4111 more convenient.

[0273] Furthermore, the housing 411 includes a negative pressure substrate 41101, a negative pressure enclosure 41102, and a receiving enclosure 41103. The negative pressure enclosure 41102 is disposed on one side of the negative pressure substrate 41101 and protrudes from the negative pressure substrate 41101, such that the negative pressure enclosure 41102 and the negative pressure substrate 41101 together form a negative pressure groove 4111. The RF electrode 420 is disposed on the negative pressure enclosure 41102 and / or the negative pressure substrate 41101.

[0274] The receiving panel 41103 is disposed on the side of the negative pressure base plate 41101 facing away from the negative pressure panel 41102. The receiving panel 41103 protrudes from the negative pressure base plate 41101, so that the negative pressure base plate 41101 and the receiving panel 41103 together form an open receiving cavity 4112. The cover 412 is mounted on the open portion of the receiving cavity 4112. The receiving cavity 4112 is capable of accommodating the head circuit board 460. In this manner, the housing 411 can be manufactured by integral injection molding, simplifying assembly.

[0275] Furthermore, the dimensions of the containment panel 41103 are larger than those of the negative pressure panel 41102. For example, along a projection plane perpendicular to the negative pressure base plate 41101, the projection of the negative pressure panel 41102 lies within the projection of the containment panel 41103, and the projection of the negative pressure tank 4111 lies within the projection of the containment cavity 4112. This allows the containment panel 41103 to be stably installed in the assembly slot 212a when installed. Furthermore, the negative pressure tank 4111 has a relatively small coverage area, thereby improving the suction and release efficiency of the negative pressure tank 4111, enabling it to quickly generate negative pressure to absorb the skin and quickly inflate the negative pressure tank 4111 to release the skin's suction.

[0276] Furthermore, the housing 411 is provided with a first mating post 4113 within the accommodating cavity 4112, and the cover 412 is provided with a first mating hole 4121. A bolt passes through the first mating hole 4121 and threadedly engages with the first mating post 4113, thereby connecting the housing 411 and the cover 412. The first mating hole 4121 may be a countersunk hole to accommodate the bolt head, thereby maintaining a substantially flat surface of the cover 412 facing away from the housing 411.

[0277] Furthermore, the housing 411 has a second airflow connection portion 4114, and the cover 412 is provided with a negative pressure hole 4122. Optionally, the second airflow connection portion 4114 is a negative pressure conduit provided on the negative pressure substrate 41101. Optionally, the second airflow connection portion 4114 extends from the bottom of the negative pressure groove 4111 toward the cover 412 and connects to the negative pressure hole 4122, so as to be exposed from the second assembly surface 412a.

[0278] The negative pressure duct has a second airway hole 411a. The second airflow connection portion 4114 is configured to be detachably connected to the first airflow connection portion 232, thereby communicating with the second airflow connection portion 4114. The mating orientation of the first and second airflow connection portions 232, 4114 can match the mating orientation of the beauty head 030 and the main body 010. That is, the first and second airflow connection portions 232, 4114 mate in the detachment direction, thereby communicating with each other when the beauty head 030 is connected to the main body 010. Optionally, when the beauty head 030 is installed in the assembly slot 212a, the first airflow connection portion 232 in the assembly slot 212a is inserted into the second airflow connection portion 4114 through the negative pressure hole 4122, thereby communicating with the second airflow connection portion 4114. That is, the first airflow connection portion 232 is provided at the bottom of the assembly groove 212a and protrudes from the first assembly surface 212b so as to be inserted into the second airflow connection portion 4114 and communicate with the second airflow connection portion 4114. When the first airflow connection portion 232 draws air, the air in the negative pressure groove 4111 can be drawn away by the first airflow connection portion 232 through the second airflow connection portion 4114, thereby forming a negative pressure in the negative pressure groove 4111, so that the user's skin is drawn into the negative pressure groove 4111 under the action of the negative pressure.

[0279] During operation, the RF electrode 420 of the beauty head 030 releases RF current to the skin drawn into the negative pressure tank 4111, allowing the RF electrode 420 to act deeper into the skin. Furthermore, the area of ​​skin contacting the RF electrode 420 increases, allowing the RF electrode 420 to deliver RF current to a wider area of ​​skin, thereby improving the efficiency of the RF current beauty treatment.

[0280] It is understood that the first airflow connection portion 232 can also be configured as a negative pressure conduit, where the first airflow connection portion 232 does not extend beyond the mounting slot 212a. The second airflow connection portion 4114 can also be configured as an airflow connection tube, where the second airflow connection portion 4114 extends beyond the housing 411. When the beauty head 030 is installed in the mounting slot 212a, the airflow connection tube of the beauty head 030 is inserted into the negative pressure conduit of the connection module 200.

[0281] Furthermore, the grooming head 030 includes a breathable member 413 for preventing contamination and allowing ventilation. The breathable member 413 is disposed within the second airflow connection portion 4114. This allows air to pass through while preventing liquids, perspiration, gels, and other debris from entering and contaminating the air path within the main body 010.

[0282] Specifically, the first airflow connection portion 232 is inserted into the second airflow connection portion 4114 to form an airflow duct, connecting the grooming head 030 and the main body 010. When the first airflow connection portion 232 is inserted into the second airflow connection portion 4114, the first airway hole 232a mates with the second airway hole 411a and connects. The air permeable member 413 is located at the entrance of the first airflow connection portion 232. When the first airflow connection portion 232 draws air from the negative pressure tank 4111 via the second airflow connection portion 4114, the air in the negative pressure tank 4111 first passes through the air permeable member 413 before entering the first airflow connection portion 232. The filtration provided by the air permeable member 413 reduces the amount of impurities that enter the first airflow connection portion 232, reducing the risk of clogging or bacterial growth. Optionally, the air permeable member 413 can include breathable cotton, which both facilitates air circulation and filters the circulating air. Furthermore, the breathable cotton is easily and cost-effectively replaceable.

[0283] Optionally, the breathable member 413 may further include a waterproof breathable membrane, which can reduce the probability of water vapor flowing through the breathable cotton and entering the main body 010. The waterproof breathable membrane can be made of Teflon and is provided on the surface of the breathable cotton, thereby reducing the probability of water vapor entering the breathable cotton through the negative pressure groove 4111.

[0284] Specifically, the ventilation area of ​​the connection channel of the second airflow connection portion 4114 near the first airflow connection portion 232 is smaller than the notch area of ​​the negative pressure groove 4111. This makes the air flow speed at the notch of the negative pressure groove 4111 slower, reducing the irritation of the airflow to the skin.

[0285] Specifically, the housing 411 is further provided with an anti-blocking groove 4115 on the bottom wall of the negative pressure groove 4111. The anti-blocking groove 4115 is located on the outside of the second airflow connection part 4114, and the anti-blocking groove 4115 is connected to the second airflow connection part 4114. When the user's skin is installed in the negative pressure groove 4111, the second airflow connection part 4114 may be blocked by the user's skin. However, the user's skin is tough and difficult to produce severe deformation locally, so it is difficult to completely block the anti-blocking groove 4115, which is smaller than the second airflow connection part 4114. When the second airflow connection part 4114 is blocked by the user's skin, the second airflow connection part 4114 can continue to generate negative pressure in the negative pressure groove 4111 through the anti-blocking groove 4115.

[0286] Optionally, the airflow duct further includes a filter tank disposed at the bottom of the negative pressure tank 4111 and connected thereto. The filter tank is connected to the inlet of the first airflow connection portion 232. A breathable member 413 is disposed within the filter tank to restrict the entry of impurities into the airflow duct; the filter tank is connected to the anti-blocking slot 4115. Placing the filter tank at the bottom of the negative pressure tank 4111 facilitates full utilization of the notch of the negative pressure tank 4111 during air suction, thereby improving suction efficiency. The breathable member 413 disposed within the filter tank reduces the possibility of impurities entering the airflow duct, thereby reducing the chance of duct blockage or bacterial growth.

[0287] Figure 17 shows a schematic structural diagram of a beauty head 030 in one embodiment of the present application. Figure 18 shows a schematic structural diagram of a housing 411 of a beauty head 030 in one embodiment of the present application.

[0288] Referring to Figures 17 and 18 , the cover 412 is provided with a latching portion 4123. The latching portion 4123 protrudes from the side of the cover 412 facing away from the housing 411. A latching slot 41231 is provided on one side of the latching portion 4123. When the hook 22111 is inserted into the latching slot 41231, the grooming head 030 and the main body 010 are relatively fixed along a first tilting direction U. The latching portion 4123 is inserted into the movable buckle hole 2112. The hook 22111 then moves within the movable buckle hole 2112 along a second tilting direction V to insert into the latching slot 41231 of the latching portion 4123.

[0289] The beauty head 030 also includes a radio frequency electrode 420. The mounting shell 410 has a skin-contacting surface 410c for contacting the user's face. The radio frequency electrode 420 is exposed on the skin-contacting surface 410c. A negative pressure groove 4111 is provided on the skin-contacting surface 410c. Multiple radio frequency electrodes 420 are provided around the negative pressure groove 4111. Optionally, the skin-contacting surface 410c is provided at the negative pressure end 410a. The radio frequency electrode 420 is connected to the shell 411. When the beauty head 030 contacts the user's skin, the radio frequency electrode 420 can emit radio frequency current to the user's skin, thereby achieving a beauty effect. The radio frequency electrode 420 is provided on the inner wall of the negative pressure groove 4111. The negative pressure generated in the negative pressure groove 4111 causes the user's skin to deform and contact the radio frequency electrode 420. The radio frequency current is then emitted by the radio frequency electrode 420 to beautify the user's skin. Compared with the roughly flat skin that is not adsorbed by the negative pressure, the radio frequency current can penetrate the skin absorbed into the negative pressure groove 4111, thereby increasing the injection depth of the radio frequency energy and improving the cosmetic effect.

[0290] The notch of the negative pressure groove 4111 forms a suction port, which is used to contact the skin so that the negative pressure groove 4111 can negatively absorb the skin. The suction port is oriented obliquely with respect to the extension direction of the housing 100, and the radio frequency electrode 420 is disposed at the suction port. It is understood that the radio frequency electrode 420 being disposed at the suction port includes the radio frequency electrode 420 being disposed within the negative pressure groove 4111 and adjacent to the notch, as well as the radio frequency electrode 420 being disposed outside the negative pressure groove 4111 and adjacent to the notch. Thus, by locating the radio frequency electrode 420 at the suction port, the radio frequency path can be reduced, thereby improving the cosmetic effect.

[0291] It is understandable that the RF electrode 420 can also be set at a distance outside the adsorption port to release RF current to the skin that is not adsorbed, so that the RF current can flow deeper under the skin and improve the cosmetic effect.

[0292] The housing 411 is provided with a mounting notch 4101 within the negative pressure groove 4111. The RF electrode 420 is disposed within the mounting notch 4101 so that, after the RF electrode 420 and the housing 411 are connected, a smooth transition occurs between the surface of the RF electrode 420 and the inner wall of the negative pressure groove 4111. It is understood that the RF electrode 420 can be at least partially disposed within the negative pressure groove 4111, allowing the RF electrode 420 to release RF current to the skin to which it is attached, or the RF electrode 420 can be completely disposed outside the negative pressure groove 4111, such that the RF electrode 420 is located on the outer periphery of the negative pressure groove 4111, thereby releasing RF current to the skin in contact.

[0293] It is understood that the RF electrode 420 can be partially disposed within the negative pressure groove 4111, so that the RF electrode 420 can release RF current to the skin absorbed by the negative pressure groove 4111. The RF electrode 420 can also be completely disposed outside the negative pressure groove 4111, so that the RF electrode 420 is located at the end of the housing 411. When the user's skin contacts the RF electrode 420, the RF current is released to the skin between the paired RF electrodes 420.

[0294] Specifically, the RF electrode 420 has opposing bottom ends 421, top ends 422, and a skin-contacting side surface connecting the top ends 422 and bottom ends 421. The bottom end 421 of the RF electrode 420 faces the bottom wall of the negative pressure groove 4111. When the beauty head 030 contacts the user's skin, the top end 422 of the RF electrode 420 abuts the user's skin. The top end 422 of the RF electrode 420 has a working curved surface 423, and / or the connection between the skin-contacting side surface and the top end 422 forms the working curved surface 423. Optionally, the working curved surface 423 has a bending axis that is substantially perpendicular to the first inclination direction U. When the user's skin is subjected to negative pressure, the skin, which is sucked into the negative pressure groove 4111 by the negative pressure, deforms due to the support of the working curved surface 423. This allows the skin to deform in accordance with its deformation characteristics, thereby improving user comfort and increasing the contact area between the RF electrode 420 and the user's skin, thereby improving beauty treatment efficiency and enhancing beauty results.

[0295] The RF electrode 420 has a thickness. The thickness of the RF electrode 420 is the dimension from the side of the RF electrode 420 facing the center of the negative pressure groove 4111 to the side of the RF electrode 420 away from the center of the negative pressure groove 4111. The thickness of the RF electrode 420 can be 2 to 5 mm. The arc diameter of the working arc surface 423 can be 2 to 5 mm. Increasing the thickness of the RF electrode 420 can reduce the power loss of the RF electrode 420 from the bottom end 421 to the top end 422, while increasing the curvature of the working arc surface 423, thereby increasing the contact area between the RF electrode 420 and the user's skin. Reducing the thickness of the RF electrode 420 can reduce the cost of the RF electrode 420 and improve the energy concentration of the RF current of the RF electrode 420.

[0296] The beauty head 030 also includes a first temperature sensor 430. The first temperature sensor 430 is used to sense the temperature of the RF electrode 420. The first temperature sensor 430 contacts the RF electrode 420 to sense its temperature. By sensing the temperature of the RF electrode 420 through the first temperature sensor 430, when the temperature of the RF electrode 420 rises above an acceptable threshold, the beauty device 001 can alert the user, reduce the RF current energy, or even directly terminate the RF current flowing to the RF electrode 420, thereby reducing the risk of burns from the RF electrode 420. When the user's skin contacts the RF electrode 420, heat transfer occurs between the skin and the electrode, causing the temperature of the skin to roughly match that of the electrode. The first temperature sensor 430 can also reflect the current temperature of the skin in contact with the RF electrode 420, serving as a reference for adjusting the RF power of the RF electrode 420. The first temperature sensor 430 can be an NTC (Negative Temperature Coefficient) sensor. The resistance of an NTC thermistor decreases rapidly as the temperature rises under a limited measurement power. The corresponding temperature can be determined by measuring the resistance of the NTC thermistor, thereby achieving the purpose of temperature detection.

[0297] Optionally, the number of RF electrodes 420 is two. The two RF electrodes 420 are arranged opposite to each other, and the second airflow connection part 4114 is located between the two RF electrodes 420. Observing the negative pressure groove 4111 along the first inclined direction U, the inner wall of the negative pressure groove 4111 located between the two RF electrodes 420 is curved, so that the negative pressure groove 4111 accommodating two RF electrodes 420 is roughly runway-shaped. The inner wall of the negative pressure groove 4111 located between the two RF electrodes 420 also has an inner chamfer. When the user's skin is adsorbed by negative pressure, the skin adsorbed by the negative pressure into the negative pressure groove 4111 is deformed according to the support of the inner chamfer, so that the deformation of the skin can be made to conform to the skin deformation characteristics, thereby improving the user's comfort.

[0298] Optionally, the distance between the two RF electrodes 420 is greater than or equal to 8 mm and less than or equal to 20 mm. This not only helps to take into account the size of the negative pressure tank 4111, so that an appropriate area of ​​skin can be drawn into the negative pressure tank 4111, but also ensures sufficient RF distance, thereby improving the efficiency of RF current stimulation of the skin while reducing the possibility of excessive skin temperature caused by excessive concentration of RF energy, thereby reducing the risk of burns to the user.

[0299] In some embodiments, the distance between the two RF electrodes 420 is any one of 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, and 19 mm. This not only helps to take into account the size of the negative pressure tank 4111, so that an appropriate area of ​​skin can be drawn into the negative pressure tank 4111, but also ensures sufficient RF distance, thereby improving the efficiency of RF current stimulation of the skin while reducing the possibility of excessive skin temperature caused by excessive concentration of RF energy, thereby reducing the risk of burns to the user.

[0300] Preferably, the distance between the two RF electrodes 420 is greater than or equal to 10 mm and less than or equal to 15 mm.

[0301] FIG19 shows a schematic structural diagram of a beauty head 030 in one embodiment of the present application, wherein the number of radio frequency electrodes 420 is four.

[0302] Optionally, there are four RF electrodes 420. The four RF electrodes 420 are located on the four sides of the quadrangular prism, with each pair of opposing RF electrodes 420 arranged in parallel. The negative pressure groove 4111 has four sidewalls, each corresponding to one of the four RF electrodes 420. A partition surface 41111 is formed between two adjacent sidewalls. The partition surface 41111 is also located between two adjacent RF electrodes 420. The partition surface 41111 can be flat or curved. When the partition surface 41111 is flat, the angle between the partition surface 41111 and any adjacent RF electrode 420 is greater than 100°. The negative pressure groove 4111 has a first dimension along the second inclined direction V and a second dimension along the third direction Z. The first dimension is greater than the second dimension. The angle between two RF electrodes 420 spaced apart along the second inclined direction V and the adjacent partition surface 41111 is between 100 and 120°. For example, the angle between the two RF electrodes 420 spaced apart along the second inclined direction V and the adjacent spacing surfaces 41111 is 105°, 110°, or 115°. The angle between the two RF electrodes 420 spaced apart along the second direction Y and the adjacent spacing surfaces 41111 is between 150 and 170°. For example, the angle between the two RF electrodes 420 spaced apart along the second direction Y and the adjacent spacing surfaces 41111 is 155°, 160°, or 165°. By limiting the angle between the spacing surfaces 41111 and the RF electrodes 420, the overall contour of the negative pressure groove 4111 is made roughly flat. When the user's skin is subjected to negative pressure adsorption, the contour of the portion deformed by the negative pressure adsorption roughly matches the contour of the negative pressure groove 4111, thereby improving the user's comfort.

[0303] The spacing surface 41111 can also be a curved surface, with the angle between the section of the curved surface approximately adjacent to one end of any RF electrode 420 and the corresponding RF electrode 420 being greater than 100°. This ensures that the transition between the spacing surface 41111 and any RF electrode 420 is substantially flat. When the user's skin is subjected to negative pressure, the contour of the portion deformed by the negative pressure roughly matches the contour of the negative pressure groove 4111, thereby improving user comfort.

[0304] The above briefly introduces the distribution of the RF electrode 420 in the negative pressure tank 4111, but does not summarize it. In order to better express the design concept of this application, the following is some summary explanation and description of the installation of the RF electrode 420 in the negative pressure tank 4111.

[0305] Specifically, the RF electrode 420 is at least partially arranged on the side wall of the negative pressure groove 4111, and the RF electrode 420 forms a plurality of RF zones in the circumferential direction of the negative pressure groove 4111. Adjacent RF zones have a spacing surface 41111, and the spacing surface 41111 is inclined to the bottom of the negative pressure groove 4111, and / or adjacent RF zones are smoothly transitioned through the spacing surface 41111.

[0306] Specifically, the RF electrode 420 can be entirely disposed on the side wall of the negative pressure groove 4111, or part of the RF electrode 420 can be disposed on the side surface of the periphery of the negative pressure groove 4111 (i.e., the skin-contacting surface 410c) and part of the RF electrode 420 can be disposed on the side wall of the negative pressure groove 4111. This allows the RF electrode 420 to emit more energy into the skin sucked into the negative pressure groove 4111, and can make the RF path shorter.

[0307] Multiple RF electrodes 420 are provided, forming multiple RF zones around the negative pressure tank 4111. It is understood that the RF electrodes 420 can be arranged in a sheet-like configuration, distributed in a dotted pattern, or configured in other configurations. When the RF electrodes 420 are arranged in a sheet-like configuration, each RF electrode 420 forms a RF zone; when the RF electrodes 420 are arranged in a dotted pattern, several dotted RF electrodes 420 distributed together form a RF zone. The RF zone has a RF surface.

[0308] Among them, the side walls of the negative pressure groove 4111 between adjacent radio frequency zones form a partition surface 41111. Through the inclined setting of the partition surface 41111 and the bottom of the negative pressure groove 4111, when the user's skin is subjected to negative pressure adsorption, the skin adsorbed into the negative pressure groove 4111 by the negative pressure is deformed according to the support of the partition surface 41111, so that the deformation of the skin can conform to the skin deformation characteristics, thereby improving the user's comfort.

[0309] It can be understood that, based on basically the same reasons, the bottom of the negative pressure groove 4111 of the RF surface of the RF zone can also be set at an angle, and the adjacent RF zones can be smoothly transitioned through the spacing surface 41111.

[0310] For example, for a non-circular negative pressure groove 4111, this type of negative pressure groove 4111 has multiple side walls, and some of the side walls can be set as RF side walls, that is, the negative pressure groove 4111 has multiple RF side walls, and each RF side wall is provided with an RF electrode 420, and the RF electrode 420 and the side wall where it is located form a RF surface; it can be understood that when the RF electrode 420 is installed on the RF side wall, the side of the RF electrode 420 or the side of the RF electrode 420 and the RF side wall together can form a RF surface. The side wall located between two adjacent RF side walls forms a partition surface 41111 that divides the two RF surfaces. That is to say, the negative pressure groove 4111 also has a partition surface 41111 located between two adjacent side walls. In order to make the deformation of the skin conform to the skin deformation characteristics to improve comfort, it can be made so that: the angle between the RF surface and the partition surface is greater than 100°; and / or the partition surface 41111 and the bottom of the negative pressure groove 4111 are arranged in an inclined shape; and / or the RF surface and the bottom of the negative pressure groove 4111 are arranged in an inclined shape.

[0311] In one embodiment, the negative pressure tank 4111 is designed to be roughly square, allowing for four RF electrodes 420 to be distributed along the four sides of the negative pressure tank 4111, with spacing surfaces 41111 formed at the four corners. In another embodiment, the negative pressure tank 4111 is designed to be roughly square, allowing for two RF electrodes 420 to be distributed along two opposing sides of the negative pressure tank 4111, with the other two sides forming spacing surfaces 41111.

[0312] It should be noted that when the negative pressure groove 4111 is roughly circular, it can still be set according to the above design method.

[0313] Furthermore, in some embodiments, multiple RF electrodes 420 can be arranged in a ring shape, and multiple RF electrodes 420 arranged in a ring shape form multiple electrode groups. The main control board 310 is used to control the multiple electrode groups to work in sequence according to a preset working order, and the stimulation ranges of the multiple electrode groups are cross-distributed.

[0314] The term "electrode group" refers to an electrode combination comprising at least one positive electrode and one negative electrode. For example, this may include one positive electrode and one negative electrode, one positive electrode and multiple negative electrodes, or multiple positive electrodes and one negative electrode. During operation, radiofrequency energy is emitted from the positive electrode and passes through the skin toward the negative electrode. The area through which the radiofrequency energy flows is the stimulation range of the electrode group.

[0315] Among them, it can be understood that the multiple electrode groups working in sequence according to the preset working order can include the following three forms: ① The working time of the two pairs of electrodes working adjacently overlaps partially, that is, the previous electrode group starts working first, and when its work is not completed, the next electrode group starts working, and it still works for a period of time after the previous electrode group finishes working, such as the previous electrode group works in the 0-3s and the next pair of electrodes works in the 2.5-6s; ② The working time of the two pairs of electrodes working adjacently is postponed, that is, the main control board 310 is used to control the multiple electrode groups to work alternately in sequence according to the preset working order, that is, the previous electrode group starts working first, and when its work is completed, the next electrode group starts working immediately and works for a period of time, such as the previous electrode group works in the 0-3s and the next pair of electrodes works in the 3-6s; ③ The working time of the two pairs of electrodes working adjacently has an interval, that is, the previous electrode group starts working first, and after its work is completed, the next electrode group starts working a short time later and works for a period of time, such as the previous electrode group works in the 0-3s and the next pair of electrodes works in the 4-7s.

[0316] For the above three forms, the starting time of the two pairs of electrode groups working adjacently is different, and the electrode group that starts working first stops working first, so that the working time of each pair of electrode groups can be shorter than the working time in the intersection area.

[0317] The stimulation ranges of the multiple electrode groups are cross-distributed, which means that the stimulation ranges of different electrode groups overlap. Optionally, as shown in FIG19 , four electrodes form two electrode groups, and the enclosed portion in the middle is the overlapping portion.

[0318] In this way, by setting up multiple electrode groups with cross-distributed stimulation ranges and making each electrode group work in sequence according to a preset working order, the skin corresponding to the area where the stimulation ranges of multiple electrode groups overlap can be continuously electrically stimulated within one cycle, so that the skin in this area is always heated, making it equivalent to the skin temperature corresponding to the radio frequency electrode 420, thereby improving the balance of beauty and enhancing the user experience.

[0319] In particular, for the beauty instrument 001 with a negative pressure tank 4111, the skin can be first sucked into the negative pressure tank 4111, and then the multiple electrode pairs can be controlled to work in sequence according to a preset working order, so as to emit radio frequency current to the skin after suction through the radio frequency electrode 420, so that the radio frequency current can penetrate the skin sucked into the negative pressure tank 4111, thereby increasing the injection depth of the radio frequency energy, thereby improving the beauty effect; and the skin sucked into the negative pressure tank 4111 can be continuously electrically stimulated, so as to achieve both increased radio frequency depth and improved radio frequency uniformity.

[0320] For example, in the beauty device 001 shown in Figure 19, which has four RF electrodes 420, every two opposing RF electrodes 420 form an electrode group. Specifically, two RF electrodes 420 spaced apart along the second oblique direction V form a first electrode group. Two RF electrodes 420 spaced apart along the second direction Y form a second electrode group. The main body 010 and the beauty head 030 are electrically connected by connecting the main circuit board 250 and the head circuit board 460, enabling the main control board 310 to control the cross-RF transmission between the first and second electrode groups.

[0321] Optionally, the cross-RF of the first electrode group and the second electrode group may include three RF stages. The first RF stage is as follows: the first electrode group emits RF current for 0.5 seconds, the second electrode group does not emit RF current, and then enters the second RF stage. The second RF stage is as follows: the second electrode group emits RF current for 0.5 seconds, the first electrode group does not emit RF current, and then enters the third RF stage. The third RF stage is as follows: the first electrode group and the second electrode group uniformly stop emitting RF current for 0.5 seconds, and then return to the first RF stage.

[0322] Optionally, the cross-RF of the first electrode group and the second electrode group can include five RF stages. The first RF stage is: the first electrode group emits a RF current with gradually increasing energy for 0.5s, the second electrode group does not emit a RF current, and then enters the second RF stage. The second RF stage is: the first electrode group emits a RF current with gradually decreasing energy for 0.5s, the second electrode group does not emit a RF current, and then enters the third RF stage. The third RF stage is: the second electrode group emits a RF current with gradually increasing energy for 0.5s, the first electrode group does not emit a RF current, and then enters the fourth RF stage. The fourth RF stage is: the second electrode group emits a RF current with gradually decreasing energy for 0.5s, the first electrode group does not emit a RF current, and then enters the fifth RF stage. The fifth RF stage is: the first electrode group and the second electrode group evenly stop emitting RF current for 0.5s, and then return to the first RF stage.

[0323] It is understood that the number of RF electrodes 420 can also be other. For example, when the number of RF electrodes 420 is six, each two opposing RF electrodes 420 form an electrode group. The main control board 310 can control the cross-RF of each electrode group through the main circuit board 250 and the head circuit board 460 (as shown in Figure 18).

[0324] Furthermore, the main control board 310 can control the cyclic operation of multiple electrode groups and the cyclic absorption of the user's skin by the negative pressure tank 4111. The operating cycle of the electrode groups is synchronized with the absorption cycle of the negative pressure tank 4111. During a cycle, the main control board 310 controls the air pump 510 to draw the skin into the negative pressure tank 4111, and then controls the multiple electrode groups to operate in a preset working order. After the multiple electrode groups have completed their operation, the skin is released. This combination of the negative pressure absorption process and the radio frequency operation process can enhance the beauty effect.

[0325] In some embodiments, the negative pressure tank 4111, under the regulation of the air source assembly 500, can periodically absorb and release the skin. The RF electrode 420, by forming different electrode groups, implements multiple RF phases. The interval between two adjacent RF phases can correspond exactly to the time it takes for the negative pressure tank 4111 to release the skin. This can reduce the chance that the RF electrode 420 will only act on unabsorbed skin, thereby reducing the cosmetic efficacy of the RF electrode 420. Furthermore, a time gap can exist between the skin absorption phase and the release of RF current, providing sufficient cushioning for the skin and reducing pain for the user.

[0326] Furthermore, the beauty head 030 also includes a second temperature sensor 450. A working hole 4116 is provided on the bottom wall of the negative pressure tank 4111 in the housing 411. The second temperature sensor 450 is disposed within the working hole 4116. The second temperature sensor 450 is positioned facing the negative pressure tank 4111 and is capable of measuring the temperature of the skin installed in the negative pressure tank 4111. Optionally, the second temperature sensor 450 is an infrared sensor that determines skin temperature by measuring infrared radiation emitted by the skin.

[0327] Furthermore, the beauty head 030 includes a protective plate 451, which is a light-transmitting plate. The protective plate 451 is positioned on the end surface of the working hole 4116 facing the negative pressure tank 4111. The protective plate 451 protects the second temperature sensor 450. The protective plate 451 transmits infrared light, allowing the second temperature sensor 450 to detect infrared radiation from the skin. The protective plate 451 also restricts the flow of gas through the working hole 4116, reducing the effect of the working hole 4116 on the negative pressure within the negative pressure tank 4111. The protective plate 451 may be a silicon wafer, which is transparent in the infrared band, allowing infrared light to pass through the wafer. Furthermore, the silicon wafer is stable and does not react with air, which would cause it to lose its infrared transparency.

[0328] Figure 20 shows a schematic structural diagram of the beauty head 030 in one embodiment of the present application, wherein the cover 412 is detached. Figure 21 shows a cross-sectional view of the beauty head 030 in one embodiment of the present application, wherein the cross-sectional view is at the location of a set of second electrical connectors 470.

[0329] Referring to Figures 20 and 21 , the beauty head 030 also includes a head circuit board 460, which is electrically connected to the RF electrode 420. The head circuit board 460 is disposed within the accommodating cavity 4112. The head circuit board 460 has a clearance hole 4602. The second airflow connection portion 4114 extends toward the cover 412, passes through the clearance hole 4602, and connects to the negative pressure port 4122. The head circuit board 460 also has an escape groove 461, which clears the first mating column 4113.

[0330] Optionally, the housing 411 is further provided with a second mating column 4117 in the accommodating cavity 4112, and the head circuit board 460 is provided with a second mating hole 4601. A bolt passes through the second mating hole 4601 and is threadedly engaged with the second mating column 4117 to connect the head circuit board 460 to the housing 411.

[0331] Furthermore, the head circuit board 460 is also provided with connection contacts 464 .

[0332] Optionally, the connection contacts 464 may include first-type electrical contacts 462. The first-type electrical contacts 462 are electrically connected to the first temperature sensor 430. The header circuit board 460 can provide power to the first temperature sensor 430 and collect electrical signals from the first temperature sensor 430. The electrical connection between the first temperature sensor 430 and the first-type electrical contacts 462 can be achieved by soldering wires or by providing a flat cable.

[0333] The connection contacts 464 may include second-type electrical contacts 463. The second-type electrical contacts 463 are electrically connected to the second temperature sensor 450. The header circuit board 460 can provide power to the second temperature sensor 450 and collect electrical signals from the second temperature sensor 450. The electrical connection between the second temperature sensor 450 and the second-type electrical contacts 463 can be achieved by soldering wires or by providing a flat cable.

[0334] The connection contacts 464 may include third-type electrical contacts, and the third-type electrical contacts are electrically connected to the RF electrodes 420 by welding wires or wiring.

[0335] The connecting contacts 464 may include fourth-type electrical contacts, which are used to cooperate with the internal circuit of the head circuit board 460 to identify the type of the beauty head 030 .

[0336] Optionally, the cover body 412 is provided with a connecting through hole 4126 , and the connecting through hole 4126 can be provided corresponding to the connecting contact 464 .

[0337] Furthermore, the beauty head 030 also includes a head electrical connector. The head electrical connector is the second electrical connector 470. Optionally, the second electrical connector 470 is a pin, which can be called an electrically controlled pin. One end of the second electrical connector 470 is mounted on the cover 412 and exposed from the cover 412 to form a pin point for electrical connection with the first electrical connector 240. The other end of the second electrical connector 470 elastically contacts or abuts the head circuit board 460 to electrically connect with the head circuit board 460. In this way, by fixing one end of the second electrical connector 470 to the cover 412, the second electrical connector 470 can be fixed on the one hand, and a pin point can be formed on the other hand. When installed on the head shell 110, the head circuit board 460 and the other end of the second electrical connector 470 can also be elastically contacted or abutted to achieve electrical connection.

[0338] Specifically, the second electrical connector 470 includes a first needle segment 471 and a second needle segment 472, which are slidably connected. The first needle segment 471 contacts and mates with the connection contact 464. The second needle segment 472 passes through the connection through hole 4126 to be exposed from the second assembly surface 412a through the connection through hole 4126 to form a pin point.

[0339] Optionally, the second needle segment 472 includes a small-diameter segment 4721 and a large-diameter segment 4722. The small-diameter segment 4721 has a profile similar to that of the connecting hole 4126, allowing it to be installed within the connecting hole 4126 and exposed from the end of the cover 412 facing away from the housing 411. The large-diameter segment 4722 can abut against the cover 412, thereby limiting the second needle segment 472 from extending further through the connecting hole 4126. That is, in a projection perpendicular to the extension direction of the large-diameter segment 4722, the large-diameter segment 4722 is at least partially located outside the projection of the connecting hole 4126, allowing the large-diameter segment 4722 to abut against the cover 412. The first needle segment 471 and the second needle segment 472 have relative elasticity. Applying an external force to the first and second needle segments 471, 472 can cause the first and second needle segments 471, 472 to slide relative to each other, thereby reducing the size of the second electrical connector 470. When the external force is removed, the first needle segment 471 and the second needle segment 472 can be moved away from each other by elastic force, thereby extending the size of the second electrical connector 470. Optionally, the second needle segment 472 is connected to the mounting housing 410 to limit the relative position of the electrical control PIN and the mounting housing 410; for example, the second needle segment 472 is fixedly connected to the cover 412, and the fixed connection can be formed by bonding, welding, etc.

[0340] It is understandable that the second electrical connector 470 may also be other structures. For example, the second electrical connector 470 is a metal rod, one end of which is electrically connected to the head circuit board 460 and the other end is exposed from the cover 412 .

[0341] When the cover 412 and housing 411 are connected, the first needle segment 471 elastically abuts against the connection contacts 464 of the head circuit board 460. Even if there is a distance deviation between each connection contact 464 and the corresponding connection through-hole 4126, the second electrical connector 470 corresponding to each connection contact 464 can accommodate the deviation by automatically expanding and contracting. The end of the second needle segment 472 facing away from the first needle segment 471 forms a second electrical contact. This second electrical contact mates with the first electrical contact of the first electrical connector 240 to establish an electrical connection between the beauty head 030 and the connection module 200.

[0342] Optionally, the surface of the first needle segment 471 facing away from the second needle segment 472 is spherical. When the spherical surface contacts the connection contact 464, it can be positioned approximately at the center of the connection contact 464. Compared to a flat surface on the surface of the first needle segment 471 facing away from the second needle segment 472, when the spherical surface abuts the header circuit board 460, the header circuit board 460 is less likely to generate torque on the first electrical connector 240, which could cause relative sliding jamming between the first and second needle segments 471, 472. The ball head maintains stable contact with the connection contact 464.

[0343] Optionally, there are multiple second electrical connectors 470, such as being divided into two groups, e.g., ten. Each group comprises five second electrical connectors 470, with the two groups of second electrical connectors 470 being located on either side of the mounting housing 410. The negative pressure port 4122 is located between the two groups of second electrical connectors 470.

[0344] When the grooming head 030 is connected to the main body 010, the plurality of second electrical connectors 470 correspond one-to-one with the plurality of first electrical connectors 240. That is, ten second electrical connectors 470 correspond one-to-one with ten first electrical connectors 240. If each second electrical connector 470 is electrically connected to the head circuit board 460, then each first electrical connector 240 is also electrically connected to the head circuit board 460. The main body circuit board 250 is electrically connected to the main control board 310, thereby electrically connecting the head circuit boards 460 and the main control board 310.

[0345] As can be understood from the above description, to achieve multiple signal transmissions, multiple second electrical connectors 470 are typically provided. During assembly or production, one end of the second electrical connector 470 can be first mounted to a portion of the mounting housing 410, such as the cover 412 of the mounting housing 410. The second electrical connector 470 is exposed from the cover 412 to form a pin point for electrical contact with the first electrical connector 240. Subsequently, by assembling the cover 412 with other portions of the mounting housing 410, the multiple second electrical connectors 470 are electrically connected to the header circuit board 460, thereby enabling quick and accurate assembly. As can be understood, one end of the second electrical connector 470 can be integrally injection-molded with the cover 412 of the mounting housing 410, such that one end of the second electrical connector 470 is mounted to a portion of the mounting housing 410.

[0346] The second electrical connector 470 forms a pin point electrically connected to the first electrical connector 240 exposed from the first assembly surface 212b, which can simplify the connection form and facilitate electrical connection between the first electrical connector 240 and the second electrical connector 470 during the docking process of the beauty head 030 and the main body 010.

[0347] FIG22 shows a partial cross-sectional view of the beauty device 001 in one embodiment of the present application.

[0348] Referring to Figures 17 and 22 , the cover 412 may optionally be further provided with an air guide 4124 and an exhaust groove 4125. The air guide 4124 and exhaust groove 4125 are disposed on a surface of the cover 412 facing away from the housing 411 (i.e., the second assembly surface 412a). The air guide 4124 is located in the center of the cover 412, and the exhaust groove 4125 extends from the air guide 4124 toward the edge of the cover 412. Optionally, the air guide 4124 and exhaust groove 4125 are located between the two sets of second electrical connectors 470.

[0349] The air guide member 4124 is provided with an air guide hole 41241 on one side thereof facing the exhaust slot 4125. The air guide member 4124 is provided with an air guide notch on one side thereof, and the air guide notch forms the air guide hole 41241.

[0350] The air guide member 4124 is integrally formed with the main body of the cover 412 , and the air guide notch can be formed when the air guide member 4124 is formed, which simplifies manufacturing.

[0351] The gas guide 4124 is configured to be inserted into the exhaust port 216 and guide the gas from the exhaust port 216 into the exhaust groove 4125 .

[0352] When the grooming head 030 is installed in the assembly groove 212a, the air guide 4124 is inserted into the exhaust port 216. The side of the cover 412 facing away from the housing 411 is tightly fitted with the first assembly surface 212b, forming an exhaust channel between the exhaust groove 4125 and the first assembly surface 212b. The air exhausted from the exhaust port 216 is guided by the air guide 4124 into the exhaust groove 4125.

[0353] The gas within exhaust groove 4125 is guided through the inner wall of exhaust groove 4125 and first assembly surface 212b, flowing to the edge of cover 412 and further out of assembly groove 212a through the gap between the side wall of housing 411 and the side wall of assembly groove 212a. Air guide 4124 is separated between exhaust groove 4125 and first airflow connection portion 232, reducing the risk of airflow flowing through first airflow connection portion 232 and preventing the airflow from affecting the negative pressure effect of negative pressure groove 4111.

[0354] In this way, through the above method, the gas flowing out of the exhaust port 216 can be guided to the exhaust groove 4125, and the assembly is simple and convenient.

[0355] It is understood that the air guide hole 41241 may also be a separate through-hole formed on one side of the air guide member 4124. For example, the air guide member 4124 may be cylindrical, and a through-hole may be machined on one side of the cylindrical air guide member 4124 to form the air guide hole 41241. The provision of the air guide member 4124 allows the gas to flow more smoothly into the exhaust groove 4125, thereby facilitating gas circulation.

[0356] It is understandable that the exhaust groove 4125 may also be provided on the first assembly surface 212b. When the first assembly surface 212b and the second assembly surface 412a are close to each other, the exhaust groove 4125 and the second assembly surface 412a form an exhaust channel.

[0357] Along the first tilt direction U, the size of the beauty head 030 is larger than the size of the mounting slot 212a. When the beauty head 030 is installed in the mounting slot 212a, and the hook 22111 engages with the slot 41231, the end of the beauty head 030 facing away from the main body 010 is located outside the mounting slot 212a. The user's skin contacts the end of the beauty head 030 facing away from the main body 010, maintaining a distance from the head. The airflow drawn through the negative pressure groove 4111 can be dissipated into the environment through the gap between the head shell 110 and the skin.

[0358] When the beauty head 030 is installed into the assembly groove 212a, the outer shell 100 and the mounting shell 410 are assembled to form a protective shell of the beauty instrument 001.

[0359] It is understood that the outer shell 100 and the mounting shell 410 can also be integrally formed, so that the beauty head 030 and the main body 010 of the beauty device 001 are non-detachable. When the outer shell 100 and the mounting shell 410 are integrally formed, the outer shell 100 and the mounting shell 410 together form a protective shell for the beauty device 001.

[0360] Figure 23 shows a schematic diagram of the structure of the beauty instrument 001 in one embodiment of the present application, wherein the rear housing 120 is detached. Figure 24 shows a schematic diagram of the structure of the air source assembly 500 in one embodiment of the present application, wherein the gas in the negative pressure tank 4111 is sucked by the air pump 510. Figure 25 shows a schematic diagram of the structure of the air source assembly 500 in one embodiment of the present application, wherein the negative pressure tank 4111 is sucked through the air vent 5213.

[0361] Referring to Figures 23, 24, and 25, the main body 010 further includes an air source assembly 500. The air source assembly 500 connects the exhaust passage and the negative pressure tank 4111. The air source assembly 500 is used to draw air from the negative pressure tank 4111 to allow the negative pressure tank 4111 to adhere to the skin, or to allow air to enter the negative pressure tank 4111 to release the adhered skin. The control assembly is electrically connected to the air source assembly 500 for controlling the air source assembly 500.

[0362] The air source assembly 500 includes an airflow driver. The airflow driver is connected to the first airflow connection portion 232 and is configured to drive airflow through the first airflow connection portion 232. When the first airflow connection portion 232 is connected to the second airflow connection portion 4114, the first airflow connection portion 232 and the second airflow connection portion 4114 together form an airflow conduit connecting the air source assembly 500 and the negative pressure tank 4111. The airflow driver is an air pump 510. The control assembly includes a main control board 310. The air pump 510 is electrically connected to the main control board 310 to be turned on and off under the control of the main control board 310. The air pump 510 and the air path switching module 520 are disposed within the accommodating chamber 100a. The air pump 510 has a pump outlet 511 and a pump inlet 512. The air pump 510 can inhale air through the pump inlet 512 and discharge air through the pump outlet 511. Optionally, the pump outlet 511 is connected to the exhaust port 216. The pump air inlet 512 is connected to the first airflow connection portion 232 via the air path switching module 520, and further to the negative pressure tank 4111 via the second airflow connection portion 4114. When the pump air inlet 512 is connected to the first airflow connection portion 232, the air pump 510 operates, drawing air from the beauty head 030 through the first airflow connection portion 232, thereby creating a negative pressure in the negative pressure tank 4111 of the beauty head 030. The airflow drive member may also have other structures, such as a manual pump.

[0363] Optionally, the airflow driving member has a forward air extraction mode and a reverse air supply mode. In the forward air extraction mode, the airflow driving member is used to extract air from the negative pressure tank 4111 to absorb the skin into the negative pressure tank 4111. In the reverse air supply mode, the airflow driving member is used to supply air into the negative pressure tank 4111 or to stop extracting air from the negative pressure tank 4111 to remove the skin from the negative pressure tank 4111. In this way, the user's skin can be absorbed and released by a single airflow driving member, which is simple in structure, helps simplify the structure, saves internal space of the accommodating chamber 100a, and reduces assembly difficulty.

[0364] By placing the air source assembly 500 within the accommodating chamber 100a, the main body 010 itself has the structural foundation for generating negative pressure. The main body 010 and the beauty head 030 can be assembled and used immediately, offering greater portability compared to external, floor-standing vacuum devices. Of course, the air source assembly 500 can also be externally connected, fixedly connected to the housing 100 and located outside the housing 100, allowing for quick replacement.

[0365] Furthermore, the air source assembly 500 also includes an air circuit switching module 520. The main control board 310 is connected to the air circuit switching module 520. The air circuit switching module 520 has an air release port 5213. The air circuit switching module 520 is connected between the air flow driving member and the negative pressure tank 4111. The air circuit switching module 520 is configured to have a negative pressure mode. In the negative pressure mode, the air circuit switching module 520 connects the air flow driving member with the negative pressure tank 4111, so that the air flow driving member extracts gas from the negative pressure tank 4111, thereby sucking the user's skin into the negative pressure tank 4111. The air circuit switching module 520 is also configured to have a degassing mode that connects the air release port 5213 with the negative pressure tank 4111, so that gas is delivered to the negative pressure tank 4111 through the air release port 5213 to relieve the skin. The main control board 310 controls the air circuit switching module 520 to switch between the negative pressure mode and the degassing mode. In this way, the skin can be sucked and released by the negative pressure tank 4111 by controlling the air circuit switching module 520 to switch between the deflation mode and the negative pressure mode.

[0366] Specifically, the air path switching module 520 includes an air valve. The air valve controls the flow of air through the beauty device 001. Specifically, the air valve is used to control the connection between the negative pressure tank 4111 and the air pump 510, allowing the air pump 510 to draw air from the negative pressure tank 4111 to adhere to the skin, or to allow air to flow into the negative pressure tank 4111 to release the adhered skin.

[0367] Optionally, the air valve is a three-way valve 521. In the negative pressure mode, the three-way valve 521 can control the pump inlet 512 of the air pump 510 to communicate with the first air flow connection portion 232 and the exhaust port 216, allowing the air pump 510 to draw gas from the negative pressure tank 4111 through the first air flow connection portion 232, thereby forming a negative pressure in the negative pressure tank 4111, and exhausting the drawn gas through the exhaust port 216. In the deflation mode, the three-way valve 521 can also control the first air flow connection portion 232 to communicate with the deflation port 5213, and the deflation port 5213 can supply gas to the first air flow connection portion 232, thereby relieving the negative pressure in the negative pressure tank 4111 and releasing the skin that is sucked into the negative pressure tank 4111.

[0368] It is understandable that the gas circuit switching module 520 may also be other components, for example, the gas circuit switching module 520 is a component formed by combining a one-way valve and a two-way valve.

[0369] When the beauty device 001 is in operation, it can cyclically generate negative pressure in the negative pressure tank 4111 to absorb the skin, and release the negative pressure to release the skin. This allows the skin to be absorbed and released intermittently, reducing the discomfort caused by long-term negative pressure absorption of the skin and improving the user experience.

[0370] Optionally, the vent 5213 can be connected to the exhaust port 216. When the negative pressure in the negative pressure tank 4111 needs to be released, ambient air can be introduced through the exhaust slot 4125. The vent 5213 can also be directly connected to the accommodating chamber 100a. Since the accommodating chamber 100a is not completely sealed, ambient air can also be introduced into the vent 5213 through the accommodating chamber 100a.

[0371] It is understandable that the air pump 510 can be in the form of a piston pump, or a turbine pump, a vacuum pump, a vane pump, a plunger pump, a diaphragm pump, a screw pump, a peristaltic pump, etc.

[0372] FIG26 shows a schematic structural diagram of the gas path switching module 520 in one embodiment of the present application.

[0373] Please refer to Figures 24, 25 and 26. Optionally, the three-way valve 521 has a first valve port 5211, a second valve port 5212 and a third valve port. The third valve port is an air vent 5213. The three-way valve 521 can control the communication between the first valve port 5211 and the second valve port 5212, or the communication between the first valve port 5211 and the air vent 5213. The first valve port 5211 is connected to the first airflow connection part 232. The second valve port 5212 is connected to the pump air inlet 512. Optionally, the first valve port 5211 is connected to the first airflow connection part 232 via a hose or a split air duct, and the second valve port 5212 is connected to the pump air inlet 512 via a hose or a split air duct.

[0374] Optionally, the three-way valve 521 is a solenoid valve.

[0375] When gas needs to be drawn from the negative pressure tank 4111, the three-way valve 521 controls the communication between the first valve port 5211 and the second valve port 5212. Gas is discharged into the environment through a path that includes the negative pressure tank 4111, the first airflow connection portion 232, the first valve port 5211, the second valve port 5212, the pump inlet 512, the pump outlet 511, the exhaust port 216, and the exhaust tank 4125, thereby forming a negative pressure in the negative pressure tank 4111.

[0376] When the negative pressure in the negative pressure tank 4111 needs to be released, the three-way valve 521 controls the first valve port 5211 to communicate with the air release port 5213. Gas enters the negative pressure tank 4111 through the air release port 5213, the first valve port 5211, and the first air flow connection portion 232, causing the pressure in the negative pressure tank 4111 to rise, thereby releasing or reducing the suction on the skin.

[0377] In the accommodating cavity 100a, the air circuit switching module 520 is located between the head shell 110 and the air pump 510. The pump inlet 512 and the pump outlet 511 of the air pump 510 are both located on the side facing the air circuit switching module 520, which facilitates the connection between the air pump 510 and the air circuit switching module 520.

[0378] The air path switching module 520 also includes an air pressure detection element 522. The air pressure detection element 522 is used to detect the air pressure in the negative pressure tank 4111. Whether extracting gas from the negative pressure tank 4111 or removing the negative pressure in the negative pressure tank 4111, the negative pressure tank 4111 is connected to the first valve port 5211. By disposing the air pressure detection element 522 between the negative pressure tank 4111 and the first valve port 5211, the air pressure in the negative pressure tank 4111 can be detected. In this way, by detecting the air pressure in the negative pressure tank 4111 through the air pressure detection element 522, excessive extraction can be prevented to avoid excessive inhalation of the skin and causing pain to the user.

[0379] Furthermore, the gas circuit switching module 520 also includes a mounting bracket 523. The mounting bracket 523 is connected to the housing 100, and the three-way valve 521 and the air pressure detector 522 are both mounted on the mounting bracket 523. In this way, the gas valve and other components can be first installed on the mounting bracket 523, and then installed into the accommodating cavity 4112 through the mounting bracket 523, thereby improving installation efficiency and facilitating the fixing of the gas valve and other components.

[0380] Optionally, a limiting hole 5231 is provided on the mounting bracket 523. The housing 100 is provided with a first pre-fixing portion within the accommodating cavity 100a. The first pre-fixing portion includes a limiting post 1303. The mounting bracket 523 also includes a limiting bolt (not shown). After the limiting bolt passes through the limiting hole 5231, it is threadedly connected to the limiting post 1303, thereby connecting the mounting bracket 523 to the housing 100. Specifically, the limiting post 1303 is provided on the front shell 130.

[0381] Furthermore, the mounting frame 523 is provided with a valve installation cavity, wherein the valve installation cavity includes a first groove body 5232 , and the three-way valve 521 is accommodated in the first groove body 5232 .

[0382] Optionally, the opening of the first groove body 5232 is set toward the front shell 130. When the three-way valve 521 is accommodated in the first groove body 5232, the front shell 130 blocks the opening of the first groove body 5232, so that the front shell 130 abuts the three-way valve 521 to limit the three-way valve 521 from moving away from the first groove body 5232.

[0383] Furthermore, the mounting frame 523 is provided with a first escape notch 5233 on the sidewall of the first trough 5232. The first escape notch 5233 forms a gas relief opening, through which the gas relief port 5213 of the three-way valve 521 is led out of the first trough 5232. Thus, by positioning the gas relief port 5213 outside the first trough 5232 through the first escape notch 5233, gas inside or outside the housing 411 can be easily drawn into the gas relief port 5213. Furthermore, the volume of the first trough 5232 can be reduced, thereby reducing the size of the mounting frame 523.

[0384] Optionally, a side wall of the first avoidance gap 5233 provided in the first groove body 5232 abuts against the three-way valve 521 to limit the movement of the three-way valve 521 along the first direction X relative to the mounting bracket 523 .

[0385] Furthermore, the first avoidance gap 5233 is communicated with the opening of the first groove body 5232 to facilitate the installation of the air valve.

[0386] Optionally, the mounting bracket 523 is provided with a second pre-fixing portion. The second pre-fixing portion includes a positioning groove 5234. The limiting hole 5231 is provided on the bottom wall of the positioning groove 5234. The limiting column 1303 can be installed into the positioning groove 5234 and abut against the side wall of the positioning groove 5234. Exemplarily, the front shell 130 is provided with two limiting columns 1303. When the mounting bracket 523 is assembled with the outer shell 100, the mounting bracket 523 is arranged between the two limiting columns 1303. When assembling the mounting bracket 523 to the outer shell 100, the front shell 130 and the mounting bracket 523 can be relatively close to each other so that the limiting column 1303 is inserted into the positioning groove 5234. The two limiting columns 1303 are both abutted against the side walls of the corresponding positioning groove 5234, preliminarily limiting the relative position of the mounting bracket 523 and the front shell 130. Then, the limiting bolt is passed through the limiting hole 5231 and threadedly engaged with the limiting column 1303 to strengthen the connection strength between the mounting bracket 523 and the front shell 130 .

[0387] It is understandable that the first pre-fixing portion and the second pre-fixing portion can also be configured as follows: the first pre-fixing portion includes a positioning groove 5234, and the second pre-fixing portion includes a limiting column 1303. The second pre-fixing portion is inserted into the first pre-fixing portion to preliminarily limit the relative position of the mounting bracket 523 and the front housing 130.

[0388] Furthermore, a second slot 5235 is provided on the mounting bracket 523 at one end opposite the first slot 5232. The opening of the second slot 5235 faces the rear housing 120. The second slot 5235 is used to accommodate the air pressure detector 522. When the mounting bracket 523 is mounted on the rear housing 120, the rear housing 120 blocks the opening of the second slot 5235.

[0389] Furthermore, the air pressure detection component 522 includes an airway component 522a and an air pressure sensor 5222. The air pressure sensor 5222 is disposed between the air pump 510 and the negative pressure tank 4111 and is used to detect the air pressure in the negative pressure tank 4111. The air pressure sensor 5222 is mounted on the airway component 522a and is disposed within the detection channel 5221d to detect the air pressure in the negative pressure tank 4111 through the detection channel 5221d. Thus, by adding the airway component 522a, the air pressure sensor 5222 can be conveniently disposed between the air pump 510 and the negative pressure tank 4111 and can be conveniently fixed to improve detection accuracy.

[0390] Specifically, the airway component 522a includes an airway body 5221, a detection channel 5221d is provided inside the airway body 5221, and an air pressure sensor 5222 is provided in the detection channel 5221d to detect the air pressure of the negative pressure tank 4111 through the detection channel 5221d.

[0391] Exemplarily, the airway body 5221 is formed with a first port 52211, a second port 52212, and a third port 52213, which are connected to the detection channel 5221d. The third port 52213 is also referred to as the detection port. The first port 52211 is used to communicate with the negative pressure tank 4111, and the second port 52212 is used to communicate with the air pump 510. The third port 52213 is located between the first port 52211 and the second port 52212, and the air pressure sensor 5222 is disposed at the third port 52213.

[0392] Specifically, the first valve port 5211 of the three-way valve 521 extends into the second groove body 5235 to connect with the second port 52212 in the second groove body 5235, so that the first valve port 5211 is in communication with the detection channel 5221d.

[0393] The air duct member 522a is mounted on the mounting bracket 523, and the mounting bracket 523 is mounted on the protective shell, so that the air duct member 522a and the mounting bracket 523 are integrally mounted on the protective shell.

[0394] Furthermore, the airway body 5221 is fixedly mounted in the second slot 5235. Optionally, the mounting bracket 523 is provided with two mounting threaded holes 5236 at the opening of the second slot 5235, and the airway body 5221 is provided with two locking grooves 52214. The locking grooves 52214 correspond to the mounting threaded holes 5236. The air source assembly 500 includes mounting bolts, which are partially disposed in the locking grooves 52214 and threadedly engaged with the mounting threaded holes 5236. The airway body 5221 is clamped by the two mounting threaded holes 5236, thereby limiting the relative positions of the mounting bolts, the airway body 5221, and the mounting bracket 523. By clamping the airway body 5221 with the heads of the mounting bolts, the airway body 5221 can be limited to be relatively away from the mounting bracket 523, thereby fixing the relative positions of the airway body 5221 and the mounting bracket 523.

[0395] When the mounting bracket 523 is attached to the front housing 130, the front housing 130 blocks the opening of the second slot 5235, thereby shielding and protecting the airway body 5221. To inspect the air pressure sensor 522, the front housing 130 and the mounting bracket 523 are released, exposing the air pressure sensor 522 for direct inspection.

[0396] It is understood that the air source assembly 500 may not include the air pressure sensor 5222, and the air pressure sensor 5222 may be located elsewhere. For example, if the air pump 510 has a built-in air pressure detection function, the air pressure in the negative pressure tank 4111 can be derived, for example, the air pressure sensor 5222 is located in the negative pressure tank 4111.

[0397] Furthermore, the airway body 5221 includes an airway substrate 5221a for forming a detection channel 5221d, a first airway column 5221b and a second airway column 5221c, the first airway column 5221b is protruded from one side of the airway substrate 5221a, the second airway column 5221c is protruded from one side of the first airway column 5221b, the other side of the airway substrate 5221a forms a third port 52213 connected to the first airway column 5221b, the free end of the first airway column 5221b forms a second port 52212, the second airway column 5221c is connected to the first airway column 5221b, and the free end of the second airway column 5221c forms a first port 52211.

[0398] The first port 52211 of the detection channel 5221d is in communication with the first airflow connection portion 232. When gas flows between the first valve port 5211 and the first airflow connection portion 232, the gas flows through the detection channel 5221d via the first port 52211 and the second port 52212.

[0399] When gas needs to be drawn from the negative pressure tank 4111, the three-way valve 521 is controlled to connect the first valve port 5211 with the second valve port 5212. The gas is discharged into the environment through a path including the negative pressure tank 4111, the detection channel 5221d, the first airflow connection portion 232, the first valve port 5211, the second valve port 5212, the pump air inlet 512, the pump air outlet 511, the exhaust port 216, and the exhaust tank 4125, thereby forming a negative pressure in the negative pressure tank 4111.

[0400] When the negative pressure in the negative pressure tank 4111 needs to be released, the three-way valve 521 is controlled to connect the first valve port 5211 with the air release port 5213. Gas enters the negative pressure tank 4111 through the air release port 5213, the first valve port 5211, the detection channel 5221d, and the first air flow connection portion 232, causing the pressure inside the negative pressure tank 4111 to rise, thereby releasing or reducing the suction on the skin.

[0401] Furthermore, the mounting frame 523 is provided with an observation window 5237 on one side of the second trough 5235. Through the observation window 5237, the fit between the first valve port 5211 and the first port 52211 within the second trough 5235 can be observed. This also facilitates adjustment of the relative positions of the first valve port 5211 and the first port 52211, ensuring a tight fit between the first valve port 5211 and the first port 52211 and preventing air from leaking easily.

[0402] Furthermore, the mounting frame 523 is provided with a second relief notch 52351 on a side of the second trough 5235 opposite the observation window 5237. The second relief notch 52351 forms a detection relief hole. A ventilation duct is provided through the second relief notch 52351 to connect the first port 52211 and the first airflow connection portion 232. By positioning the first port 52211 outside the second trough 5235 through the second relief notch 52351, the connection between the first port 52211 and the first airflow connection portion 232 is facilitated. Furthermore, the volume of the second trough 5235 is reduced, thereby reducing the size of the mounting frame 523.

[0403] Furthermore, the air pressure detection component 522 further includes an airway sealing component 5223. The airway sealing component 5223 is connected to the airway body 5221 to seal the third port 52213. In this way, the air pressure sensor 5222 can be easily installed and removed.

[0404] Optionally, the airway body 5221 is provided with a first connection hole 52215, and the airway seal 5223 is provided with a second connection hole 52231. By providing sealing bolts in the first connection hole 52215 and the second connection hole 52231, the airway seal 5223 and the airway body 5221 are tightly fitted, and the airway seal 5223 is closely attached to the surface of the airway body 5221, thereby sealing the third port 52213.

[0405] The airway seal 5223 is installed on the other side of the airway substrate 5221 a to seal the detection port, and the air pressure sensor 5222 is installed on the airway seal 5223 .

[0406] Furthermore, an airway annular protrusion 5223a is provided on the side of the airway seal 5223 and is installed in the detection port. The airway annular protrusion 5223a is sealed and connected to the detection port, and the air pressure sensor 5222 is installed in the airway annular protrusion 5223a. Among them, the third port 52213 is set as a countersunk hole.

[0407] In some embodiments, the air pressure sensor 5222 can be fixed within the airway annular protrusion 5223a by bonding or other means. In other embodiments, the air pressure sensor 5222 can be disposed at the third port 52213, abutting the bottom wall of the countersunk hole. Specifically, when the airway seal 5223 is connected to the airway body 5221, the bottom wall of the countersunk hole and the airway seal 5223 jointly clamp the air pressure sensor 5222, and the airway annular protrusion 5223a abuts the inner wall of the countersunk hole, thereby limiting the relative position of the air pressure sensor 5222 and the airway body 5221.

[0408] Furthermore, the air path switching module 520 also includes a limit plate 524, and the valve installation cavity also includes an extended limit cavity 5238. The first groove body 5232 and the extended limit cavity 5238 are arranged in parallel. The second valve port 5212 of the three-way valve 521 extends into the extended limit cavity 5238, and the extended limit cavity 5238 is provided with a cavity connecting port 5239 on the side wall facing the air pump 510. A ventilation pipe is provided through the cavity connecting port 5239 to connect the second valve port 5212 and the pump air inlet 512. In this way, by arranging the second valve port 5212 in the extended limit cavity 5238 and connecting it with the air pump 510 therein, it can be protected by the extended limit cavity 5238 to prevent the second valve port 5212 from being touched when assembling other components and affecting the air tightness.

[0409] The extended limiting cavity 5238 also has an opening. The limiting plate 524 is installed at the end of the extended limiting cavity 5238 away from the second groove 5235, that is, at the opening of the extended limiting cavity 5238. In this way, the limiting plate 524 can achieve anti-drop and protection.

[0410] Optionally, the position of the limiting plate 524 is limited by the mounting bracket 523 and / or the front housing 130, for example, the limiting plate 524 is snap-fitted to the mounting bracket 523. When the three-way valve 521 tends to move relative to the mounting bracket 523, the limiting plate 524 can abut against the second valve port 5212 to limit the movement of the three-way valve 521, thereby preventing the second valve port 5212 from disengaging from the expansion limiting cavity 5238.

[0411] A valve partition plate 523c is provided between the first groove body 5232 and the extended limiting cavity 5238, and a communication gap is provided on the valve partition plate 523c to connect the two, so as to facilitate the installation of the air valve.

[0412] Specifically, the mounting frame 523 includes a pump mounting base plate 523a and a valve enclosure plate 523b. The valve enclosure plate 523b is positioned on one side of the pump mounting base plate 523a. The valve enclosure plate 523b surrounds the outer periphery of the pump mounting base plate 523a and, together with the pump mounting base plate 523a, forms a valve mounting cavity. A valve diaphragm 523c is also projected from the inner wall of the valve enclosure plate 523b, defining a first slot 5232 and an extended limit cavity 5238 within the valve mounting cavity, both of which have openings (i.e., openings), for mounting the three-way valve 521. The valve enclosure plate 523b includes a first valve side plate 523b1 positioned near the air pump 510 and a second valve side plate 523b2 positioned opposite the first valve side plate 523b1. The first valve side plate 523b1 is provided with a cavity communication port 5239, while the second valve side plate 523b2 is provided with a first relief notch 5233 that exposes and avoids the air vent 5213.

[0413] Specifically, the mounting frame 523 also includes an airway enclosure 523d ​​located on the other side of the pump mounting base plate 523a. The airway enclosure 523d ​​and the pump mounting base plate 523a together form an open second trough 5235. The airway enclosure 523d ​​includes an airway side plate 523d1 positioned adjacent to the negative pressure tank 4111. The airway side plate 523d1 is provided with a second relief notch 52351 to allow communication between the airway component 522a and the negative pressure tank 4111.

[0414] Fig. 27 is an exploded view of the rear housing 120 and the display module 600 in one embodiment of the present application. Fig. 28 is a schematic structural view of the pressing member 710 in one embodiment of the present application.

[0415] Please refer to Figure 2 and Figure 27. The main body 010 also includes a display and control component. The shell 100 has a display and control installation port 1203 that is connected to the accommodating cavity 100a. The display and control component is installed as a whole at the display and control installation port 1203. In this way, the display and control component can be assembled outside the shell 100 in advance and then installed as a whole on the shell 100. This can reduce the impact of the shell 100 on the assembly, thereby reducing the assembly difficulty and improving the assembly efficiency.

[0416] Furthermore, the display and control assembly includes a display module 600 and a button module 700. The display module 600 is used to display information about the beauty device 001. This information can include operating information of the beauty device 001, such as the RF current intensity of the RF electrode 420 and the fault status of the main body 010. It can also include the assembly status of the beauty device 001, such as the type of beauty head 030 currently connected to the main body 010.

[0417] The display module 600 is disposed in the display area of ​​the rear housing 120. The display area is located in the region where the housing 100 transitions from the first direction X to the first tilted direction U. Specifically, the display area is the region of the housing 100 where the grip portion 101 transitions to the bent portion 121. This prevents the display area from being obstructed when the user grips the device and facilitates increasing the display area.

[0418] The display module 600 includes a display circuit board 620 and a light guide assembly 630 . The display circuit board 620 is used to emit light to the display area.

[0419] Furthermore, the display and control module also includes a display and control board 610. The housing 100 has a display window in the display area; the display and control board 610 is connected to the housing 100 at the display window; and a display circuit board 620 is used to emit light toward the display and control board 610. The key module 700 is mounted on the display and control board 610, which is then mounted on the housing 100, so that the key module 700 is integrally mounted to the housing 100 via the display and control board 610. This improves installation efficiency by pre-installing the key module 700 on the display and control board 610 and then integrally mounting the display and control board 610 on the housing 100.

[0420] The display and control installation opening 1203 is provided on the rear housing 120, and the display and control board 610 is connected to the rear housing 120 at the display and control installation opening 1203. Optionally, the display and control board 610 covers the display and control installation opening 1203 to prevent debris from entering the accommodating cavity 100a through the display and control installation opening 1203.

[0421] The display and control mounting port 1203 is located on the side of the rear housing 120 facing away from the front housing 130, and is located at the end of the rear housing 120 that is closest to the head housing 110. Specifically, the display and control mounting port 1203 is located in the area where the housing 100 transitions from the first direction X to the first inclined direction U; the display and control panel 610 also has an arcuate surface.

[0422] In some embodiments, the display and control panel 610 bends from extending along the first direction X to extending along the first inclined direction U from the end away from the head housing 110 to the end close to the head housing 110, and is connected to the head housing 110. Along the third direction Z, the size of the display and control panel 610 is smaller than that of the rear housing 120.

[0423] In this embodiment, the first half shell has a U-shaped cross-section perpendicular to the first direction X, forming an opening toward the second half shell. This creates a larger interior space after the first and second half shells are assembled. However, this also results in a greater depth of the first half shell toward the second half shell, resulting in relatively limited space during assembly. In the present application, by utilizing an integral assembly method, the impact of the first half shell on assembly is reduced, thereby improving assembly efficiency.

[0424] Optionally, the rear shell 120 is provided with a limiting groove 1204 on the periphery of the display and control installation opening 1203. That is, the display and control installation opening 1203 is located at the bottom of the limiting groove 1204, and the display and control board 610 is accommodated in the limiting groove 1204. Specifically, the display and control board 610 is arranged in contact with the bottom wall of the limiting groove 1204. In this way, by providing the limiting groove 1204 to accommodate the display and control board 610, it can be pre-positioned during assembly, and the display and control board 610 can be prevented from protruding too high after assembly is completed. Among them, the limiting groove 1204 is provided on the outer surface of the rear shell 120, thereby further reducing the difficulty of assembly. The inner wall of the limiting groove 1204 limits the movement of the display and control board 610 relative to the rear shell 120 along the first direction X and the third direction Z.

[0425] Furthermore, the rear housing 120 is provided with a limiting through-hole 1205 within the limiting groove 1204. The limiting through-hole 1205 extends through the rear housing 120 in the second direction Y. Bolts passing through the limiting through-hole 1205 and threadedly engaging with the display and control board 610 secure the display and control board 610 to the rear housing 120 in the second direction Y. Specifically, the display and control assembly further includes a display and control mounting bolt. The display and control board 610 is provided with a display and control threaded hole. The display and control mounting bolt passes through the limiting through-hole 1205 and threadably engages with the display and control threaded hole to secure the housing 100 and the display and control board 610.

[0426] Furthermore, the limiting through hole 1205 is arranged in an area within the limiting groove 1204 and outside the display and control installation opening 1203 .

[0427] Optionally, the end of the display and control board 610 facing away from the head shell 110 has a first curved edge 611 and a second curved edge 612. The first curved edge 611 and the second curved edge 612 are symmetrical along a symmetry plane, which is perpendicular to the third direction Z, and the rear shell 120 is also roughly symmetrical along the symmetry plane. A convex angle is formed between the first curved edge 611 and the second curved edge 612. A convex angle is an angle less than 180°, that is, an angle that protrudes outward. The first curved edge 611 and the second curved edge 612 both abut against the inner wall of the limiting groove 1204. Through the abutment between the first curved edge 611, the second curved edge 612 and the inner wall of the limiting groove 1204, the display and control board 610 can be aligned with the middle of the limiting groove 1204.

[0428] Optionally, the display circuit board 620 of the display module 600 is detachably connected to the display control board 610. The display control board 610 is generally plate-shaped. The display circuit board 620 includes a plurality of lighting elements 621, which are arranged toward the display control board 610 and can emit visible light toward the display control board 610.

[0429] The display control board 610 is provided with a limit buckle 613 extending into the accommodating cavity 100a. The limit buckle 613 is clamped on the side of the display circuit board 620 away from the display control board 610, thereby limiting the display circuit board 620 from separating from the display control board 610.

[0430] The display circuit board 620 can be electrically connected to the main control board 310 , and the main control board 310 controls the lighting component 621 on the display circuit board 620 to emit visible light.

[0431] It is understandable that the display module 600 may not include the display circuit board 620, but integrate the functions of the display circuit board 620 into other circuit boards, for example, integrated into the main control board 310, the main control board 310 is connected to the lighting component 621, and the lighting component 621 can be integrated into the display control board 610.

[0432] The light guide assembly 630 is positioned between the display control board 610 and the display circuit board 620. It is used to conduct light from the display circuit board 620 to the display control board 610. Optionally, the end of the light guide assembly 630 facing the display control board 610 is bonded to the display control board 610, while the end of the light guide assembly 630 facing the display circuit board 620 is bonded to the display circuit board 620. This helps to improve the overall compactness of the display control assembly structure, reducing the space occupied by the accommodating cavity 100a and facilitating the installation of other components. Furthermore, this bonding arrangement improves light guidance efficiency, allowing users to observe higher brightness and facilitate access to information about the beauty device 001. The light guide assembly 630 matches the flat display circuit board 620 with the curved display control board 610. The light guide assembly 630 passes through the display control mounting opening 1203 to conduct visible light from the display circuit board 620 within the accommodating cavity 100a to the display control board 610.

[0433] Optionally, the light guide assembly 630 includes a light guide member 631 and a light isolation member 632. The light guide member 631 includes at least two light guide plates 6311, and the multiple light guide plates 6311 are spaced apart along the first direction X. The size of the light guide plate 6311 along the second direction Y is adapted to the curved surface of the display control board 610, so that one end of the light guide plate 6311 is close to the display circuit board 620 while the other end is as close to the display control board 610 as possible. Each light guide plate 6311 corresponds to at least one lighting component 621 on the display circuit board 620. The light guide member 631 transmits the visible light emitted by the lighting component 621 to the display control board 610. The area corresponding to the display control board 610 and the light guide member 631 is a light-transmitting area. The user can observe the visible light transmitted by the light guide member 631 through the display control board 610.

[0434] Optionally, the light isolation member 632 includes a plurality of light isolation plates 6321, and the plurality of light isolation plates 6321 are spaced apart along the first direction X. The size of the light isolation plate 6321 along the second direction Y is adapted to the curved surface of the display control board 610, so that one end of the light isolation plate 6321 is close to the display circuit board 620 while the other end is as close to the display control board 610 as possible. A light isolation plate 6321 is provided between each two adjacent light guide plates 6311, and the light isolation plate 6321 limits the transmission of visible light between the two adjacent light guide plates 6311. The light isolation plate 6321 can, on the one hand, enable each light guide plate 6311 to independently guide light, thereby reducing color crosstalk between adjacent light guide plates 6311, and on the other hand, it can reduce the dispersion of light within the light guide plate 6311, thereby improving the light guiding effect of the light guide plate 6311.

[0435] Optionally, the light isolating member 632 is connected to the light guide member 631, and the light guide member 631 is connected to the display circuit board 620. In this way, during assembly, the light isolating member 632 and the light guide member 631 can be connected outside the housing 100, and the light guide member 631 can be connected to the display circuit board 620, and then the entire connected structure can be connected to the housing 100, thereby reducing the difficulty of assembly.

[0436] Optionally, each light guide plate 6311 has a first end surface 63111 and a second end surface 63112. The first end surface 63111 and the second end surface 63112 are substantially symmetrical along a plane of symmetry. A convex angle is formed between the first end surface 63111 and the second end surface 63112. A convex angle is an angle less than 180°, i.e., an angle that bulges outward. The first end surface 63111 and the second end surface 63112 abut against the same light isolation plate 6321, allowing the light guide plate 6311 to align with the center of the rear housing 120.

[0437] Optionally, the light guide 631 further includes a first base plate 6312. The plurality of light guide plates 6311 are connected via the first base plate 6312. The light isolation member 632 further includes a second base plate 6322. The plurality of light isolation plates 6321 are connected via the second base plate 6322. A base plate mounting groove 63121 is provided on a side of the first base plate 6312 facing the display circuit board 620. The second base plate 6322 is clamped in the base plate mounting groove 63121 to limit the relative displacement of the light guide 631 and the light isolation member 632 along the third direction Z. The light guide plate 6311 and the light isolation plate 6321 abut against each other to limit the relative movement of the light guide 631 and the light isolation member 632 along the first direction X. The first base plate 6312 is further provided with plugging posts 63122 on a surface facing the display circuit board 620. The plugging posts 63122 engage with the display circuit board 620, thereby securing the light guide 631 and the display circuit board 620. The second base plate 6322 is sandwiched between the first base plate 6312 and the display circuit board 620, restricting relative movement of the light guide 631, the light isolating member 632, and the display circuit board 620 along the second direction Y.

[0438] Furthermore, the button module 700 is used to receive a pressing signal from the user in order to operate the beauty instrument 001. The display control panel 610 is provided with a pressing window 6101, and the button module 700 is installed at the pressing window 6101 of the display control panel 610. In this way, the button module 700 can be observed and controlled through the pressing window 6101.

[0439] Furthermore, the key module 700 is electrically connected to the control component so that the control component controls the RF electrode 420 to release RF current according to the signal of the key module 700 and / or controls the gas source component 500 according to the signal of the key module 700.

[0440] Furthermore, the key module 700 includes a pressing member 710 and a key circuit board 720. The pressing member 710 can move relative to the display and control board 610 along the second direction Y. The key circuit board 720 is arranged in the accommodating cavity 100a. The display and control board 610 is provided with an assembly column 6102. The bolt passes through the key circuit board 720 and is threadedly connected to the assembly column 6102, so that the key circuit board 720 can be connected to the display and control board 610. The key circuit board 720 includes a key block 721. The pressing member 710 has a flexible portion 711. When the user presses the flexible portion 711, the flexible portion 711 can be flexibly deformed and move toward the key block 721. The flexible portion 711 acts on the key block 721, which can trigger an electrical signal, so that the key circuit board 720 generates an electrical signal to control the operation of the beauty instrument 001.

[0441] It is understandable that the button module 700 can also adopt a non-contact form, for example, a gesture sensing form, which can convert the user's gesture into an electrical signal to control the beauty instrument 001.

[0442] Optionally, the display and control assembly comprises a display and control board 610, a display module 600, and a key module 700. The display module 600 and the key module 700 are mounted on the display and control board 610, which is then mounted on the housing 100. This allows the display module 600 and the key module 700 to be integrally mounted on the housing 100 via the display and control board 610. This display and control assembly can be pre-assembled before being mounted on the housing 100, reducing the difficulty of assembling the beauty device 001.

[0443] Optionally, the pressing member 710 has a limiting outer edge 712. The limiting outer edge 712 is disposed within the accommodating cavity 100a. The size of the limiting outer edge 712 is larger than the size of the pressing window 6101. When the pressing member 710 moves relative to the display and control board 610 in the second direction Y, the limiting outer edge 712 can abut the display and control board 610 to prevent the pressing member 710 from separating from the pressing window 6101 in the second direction Y. The flexible portion 711 is disposed in the middle of the limiting outer edge 712.

[0444] It is understandable that the limiting outer edge 712 of the pressing member 710 and the flexible portion 711 can also be formed integrally. The limiting outer edge 712 and the flexible portion 711 are made of the same material. The volume of the limiting outer edge 712 is large enough so that after being deformed by an external force, the limiting outer edge 712 is not easily contracted to the point where it can pass through the narrow area of ​​the pressing window 6101, so that it can still abut the display control board 610 to prevent the pressing member 710 from separating from the pressing window 6101 along the second direction Y. The area of ​​the flexible portion 711 is large enough, so that the flexible portion 711 can produce a large enough deformation to contact the key block 721 and drive the key block 721. Please refer to Figures 27 and 28. The flexible portion 711 also includes a pressing protrusion 713. The pressing protrusion 713 extends toward the pressing member 710 so that the flexible portion 711 can contact the key block 721 after deformation.

[0445] When using the beauty device 001, the user can observe the information on the display panel 610 to determine the status of the device. Applying force to the push button 710 with a finger activates the button block 721. When the button block 721 is activated, the main control board 310 receives an electrical signal and changes the operating mode of the beauty device 001. Correspondingly, the display circuit board 620 adjusts the operating mode to control the light element 621 to emit visible light. The user can determine the current operating mode of the beauty device 001 from the information displayed on the display panel 610 and apply force to the push button 710 as needed to select the corresponding operating mode. For example, if the user wishes to turn on the beauty device 001 and observes that the display panel 610 does not emit visible light, they can press and hold the push button 710, causing the button block 721 to be pressed. The main control board 310 receives a continuous electrical signal and determines that the user wishes to turn on the beauty device 001. Once the beauty device 001 is turned on, the display panel 610 emits visible light, allowing the user to determine that the beauty device 001 is currently on. When the user wishes to switch from the first operating mode to the third operating mode, the display panel 610 emits the first color corresponding to the first operating mode. The user briefly presses the push button 710, causing the button block 721 to be pressed. The main control panel 310 receives an electrical signal and determines that the user wishes to switch the operating mode of the beauty device 001, thereby switching the first operating mode to the second operating mode. The user observes the display panel 610 again. It then emits the second color corresponding to the second operating mode, rather than the third color corresponding to the third operating mode. At this point, the user briefly presses the push button 710 again, causing the button block 721 to be pressed. The main control panel 310 receives an electrical signal and determines that the user wishes to switch the operating mode of the beauty device 001, thereby switching the second operating mode to the third operating mode. The user observes the display panel 610 again. It then emits the third color corresponding to the third operating mode, thereby determining that the beauty device 001 is in the desired third operating mode.

[0446] The key module 700, display module 600, and display control board 610 together form a display control assembly. The key module 700, display module 600, and display control board 610 can be pre-assembled to form a display control assembly and then installed together at the display control installation port 1203 of the housing 100, making the beauty instrument 001 easier to assemble.

[0447] Furthermore, the control assembly includes an RF circuit board 810. The RF circuit board 810 is electrically connected to the main control board 310 and is used to control the release of RF current by the RF electrodes 420. Optionally, the RF circuit board 810 can be connected to the power cord 050 to receive power and is electrically connected to the main control board 310 to supply power to the main control board 310. Optionally, the RF circuit board 810 is connected to the display and control board 610, which in turn is connected to the rear housing 120, thereby limiting the relative position of the RF circuit board 810 and the rear housing 120.

[0448] Optionally, the main control board 310 and the radio frequency circuit board 810 are arranged around the airflow driving component.

[0449] In some embodiments, the beauty device 001 may further include an adapter connected to the power cord 050. The adapter connects to a household electrical grid or portable power source, converting the voltage from the household electrical grid or portable power source to the voltage required by the beauty device 001 before supplying power to the RF circuit board 810. Specifically, the adapter is electrically connected to the control assembly and is used to power the control assembly and / or the gas source assembly 500.

[0450] Optionally, the adapter is detachably connected to the housing 100. In this way, when there is no need to provide power to the RF circuit board 810, the user can remove the adapter from the housing 100 to store the beauty device 001 and the adapter. In addition, if the adapter is damaged, it is easy to repair and replace, which helps reduce the maintenance cost of the beauty device 001.

[0451] In some other embodiments, the beauty device 001 may further include a battery. The battery is disposed within the accommodating cavity 100a. The battery is electrically connected to the RF circuit board 810, which in turn supplies power to the main control board 310. The main control board 310, in turn, supplies power to the head circuit board 460 via the main circuit board 250, thereby enabling the RF electrodes 420 to output RF current. The main control board 310 can also supply power to the air source assembly 500.

[0452] Furthermore, the main control board 310 is also electrically connected to the gas source assembly 500 , so that the air pump 510 can suck the gas from the negative pressure tank 4111 through the three-way valve 521 .

[0453] It is understandable that either the battery or the adapter can be selected, so that the beauty instrument 001 only obtains power from the battery or the adapter. The beauty instrument 001 can also include both the battery and the adapter to increase the user's freedom of choice.

[0454] It is understandable that the RF circuit board 810 may also be directly connected to the housing 100 , thereby limiting the relative position of the RF circuit board 810 and the housing 100 , so that the RF circuit board 810 can be stably disposed in the accommodating cavity 100 a .

[0455] It is understood that the RF circuit board 810 extends along the first direction X, and the RF circuit board 810 and the main control board 310 are located on both sides of the gas source assembly 500, so that the angle between the RF circuit board 810 and the main control board 310 is between 70° and 110°. For example, the RF circuit board 810 can be approximately perpendicular to the main control board 310. This can improve space utilization.

[0456] The beauty device 001 provided herein, when in use, connects the beauty head 030 to the main body 010. After the beauty head 030 is inserted into the assembly slot 212a, the hook 22111 engages with the latch 41231, restricting the relative position of the beauty head 030 and the main body 010. When the beauty head 030 is inserted into the assembly slot 212a, the first airflow connection portion 232 is inserted into the second airflow connection portion 4114 through the negative pressure hole 4122, establishing communication between the first airflow connection portion 232 and the negative pressure slot 4111. By connecting the first valve port 5211 with the second valve port 5212 via the three-way valve 521, the air pump 510 draws air from the negative pressure slot 4111, creating a negative pressure within the negative pressure slot 4111 for skin absorption. When the beauty head 030 is inserted into the assembly slot 212a, the air guide 4124 inserts into the exhaust port 216, forming an exhaust channel between the exhaust slot 4125 and the first assembly surface 212b. Gas discharged from the air pump 510 can be discharged from the beauty device 001 through the exhaust port 216 and the exhaust slot 4125. Therefore, when the beauty head 030 and the main body 010 are assembled, both the outlet and inlet of the air pump 510 are connected to the beauty head 030. This allows the inlet of the air pump 510 to create a negative pressure within the negative pressure slot 4111 and to exhaust gas between the beauty head 030 and the inner wall of the accommodating chamber 100a. Furthermore, when a user holds the housing 100 and uses the beauty device 001, they primarily observe the beauty head 030 and rarely the tail cover 131. By directing the gas through the gap between the beauty head 030 and the inner wall of the assembly slot 212a, the user can easily check whether the exhaust slot 4125 of the beauty device 001 is blocked, thus maintaining the normal operation of the beauty device 001.

[0457] When the beauty head 030 is installed in the mounting slot 212a, the first electrical connector 240 of the main body 010 also connects to the second electrical connector 470 of the beauty head 030, thereby establishing an electrical connection between the beauty head 030 and the main body 010. The RF electrode 420 is electrically connected to the second electrical connector 470 via the head circuit board 460. The main body 010 can provide power to the beauty head 030 and control the RF current output of the RF electrode 420.

[0458] The beauty instrument 001 provided in this application is installed into the assembly groove 212a through the beauty head 030, which can not only connect the air pump outlet and air pump inlet with the beauty head 030, but also realize the electrical connection between the beauty head 030 and the main body 010, which is convenient for user operation.

[0459] Furthermore, the main body 010 can also identify the type of the beauty head 030. The beauty head 030 includes various types. For example, the beauty head 030 can be a first-type module comprising two RF electrodes 420, or a second-type module comprising four RF electrodes 420. When the beauty head 030 is installed in the assembly slot 212a, the main body 010 can identify the type of the beauty head 030, such as whether it is a first-type module or a second-type module, facilitating the main body 010 to control the beauty head 030 in a targeted manner. The number of RF electrodes 420 on the beauty head 030 can also vary, for example, five RF electrodes 420 located at the five corners of a pentagon, with each alternate pair of RF electrodes 420 activated to generate RF current.

[0460] In this way, the present application provides multiple beauty heads 030 that are selectively installed on the main body 010, allowing users to choose different beauty heads 030 for use according to their needs; and the present application can also perform corresponding control by identifying different types of beauty heads 030, thereby improving the flexibility of use of the beauty instrument 001.

[0461] Furthermore, the main body 010 includes a sensor, and the beauty head 030 includes a sensing element. The sensor is used to identify the type of beauty head 030. In some embodiments, the sensor can be a Hall effect sensor, and the sensing element can be a magnetic element. Different types of beauty heads 030 are equipped with different types of magnetic elements. The Hall effect sensor can sense the magnetic element of the beauty head 030 to determine the type of beauty head 030. In other embodiments, the sensor can also be an identification circuit embedded or integrated into the main control board 310 or the main circuit board 250, and can determine the type of beauty head 030 by identifying the type of the second electrical connector 470. In other embodiments, the sensor can also be an NFC sensor, and the sensing element can be an NFC coil. The NFC sensor can sense the type of the NFC coil and thus determine the type of beauty head 030.

[0462] FIG29 shows a schematic structural diagram of the gas path switching module 520 in one embodiment of the present application.

[0463] Referring to Figures 20-22 and 29, the sensor includes at least three sensing points. The sensing element electrically contacts at least two of these sensing points, thereby conducting current between the two sensing points. This allows different types of beauty heads 030 to be identified based on the different locations or numbers of sensing points detected. This approach is cost-effective and space-saving.

[0464] Furthermore, one end of at least three first electrical connectors 240 can form a sensing point, and each first electrical connector 240 can form a sensing point. At least two second electrical connectors 470 are configured as part of the sensing element, that is, the sensing element includes at least part of the second electrical connectors 470, where "at least part of the second electrical connectors 470" indicates a part in terms of quantity, that is, only a few of the multiple second electrical connectors 470 may be used to form the sensing element. As such, it can be understood that the first and second electrical connectors 240, 470 can be categorized, with some first and second electrical connectors 240 and their corresponding second electrical connectors 470 used to electrically connect and control the RF electrode 420, the first temperature sensor 430, or the second temperature sensor 450, while others can be used to identify the type of the beauty head 030. Alternatively, some first and second electrical connectors 240, 470 can have multiple functions, with the first and second electrical connectors 240, 470, and their corresponding second electrical connectors 470 used to electrically connect to the RF electrode 420, the first temperature sensor 430, or the second temperature sensor 450, also used to identify the type of the beauty head 030. Both approaches require only changing the number of first and second electrical connectors 240, 470, resulting in simple manufacturing and low cost.

[0465] Furthermore, the connection contacts 464 of the head circuit board 460 include conduction contacts and circuit-breaking contacts (i.e., fourth type electrical contacts). Some of the second electrical connectors 470 are in contact with the conduction contacts, and some of the second electrical connectors 470 are in contact with the circuit-breaking contacts. It can be understood that when one of the second electrical connectors 470 is in contact with the conduction contact, the second electrical connector 470 forms a conduction needle 470a and is electrically connected to the head circuit board 460, and at least two of the second electrical connectors 470 are configured as conduction needles 470a. When one of the second electrical connectors 470 is in contact with the circuit-breaking contact, the second electrical connector 470 is a false second electrical connector, which forms a circuit-breaking needle 470b and is non-electrically connected to the head circuit board 460. The first electrical connector 240 contacted by the circuit-breaking needle 470b is also non-electrically connected to the head circuit board 460. The disconnect pin 470 b does not transmit an electrical signal between the header circuit board 460 and the body circuit board 250 .

[0466] Specifically, an identification circuit connected to the first electrical connector 240 is provided in the main circuit board 250 or the main control board 310. Different types of beauty heads 030 include different numbers of and / or different positions of conduction pins 470a and disconnection pins 470b. When different types of beauty heads 030 are installed on the main body 010, the identification circuit will generate different electrical signals, thereby identifying different beauty heads 030.

[0467] In other words, when the main circuit board 250 applies a high level to all first electrical connectors 240, it receives feedback from the header circuit board 460, allowing the circuit board to determine whether the second electrical connector 470 is a conductive pin 470a or a disconnect pin 470b. After determining the type of all second electrical connectors 470, the circuit board can then determine the type of the grooming head 030. For example, if four second electrical connectors 470 in a first-type module are disconnect pins 470b, while the remaining second electrical connectors 470 are conductive pins 470a, the main circuit board 250 determines that there are four second electrical connectors 470 in the header circuit board 460, and the grooming head 030 is a first-type module. If two second electrical connectors 470 in a second-type module are disconnect pins 470b, while the remaining second electrical connectors 470 are conductive pins 470a, the main circuit board 250 determines that there are two second electrical connectors 470 in the header circuit board 460, and the grooming head 030 is a second-type module. For another example, if two of the second electrical connectors 470 in a first-type module are disconnect pins 470b, and the two disconnect pins 470b are adjacent to each other, while the other second electrical connector 470 is a conductive pin 470a, then the main circuit board 250 determines that the header circuit board 460 has only two disconnect pins 470b, and the two disconnect pins 470b are adjacent to each other, then the grooming head 030 is determined to be a first-type module. If two of the second electrical connectors 470 in a second-type module are disconnect pins 470b, and a conductive pin 470a is located between the two disconnect pins 470b, while the other second electrical connector 470 is a conductive pin 470a, then the main circuit board 250 determines that the header circuit board 460 has only two disconnect pins 470b, and a conductive pin 470a is located between the two disconnect pins 470b, then the grooming head 030 is determined to be a second-type module.

[0468] Specifically, the mounting shell 410 and the second electrical connector 470 are integrally injection-molded.

[0469] It is understood that in other embodiments, the dummy second electrical connector (i.e., the disconnect pin 470b) may not be provided. In this case, the molds for the mounting housing 410 of different types of beauty heads 030 can be different. In other words, in this embodiment, by providing the dummy second electrical connector, the molds for the mounting housing 410 of different types of beauty heads 030 can be made the same, thereby reducing production costs.

[0470] It is understood that the disconnect pin 470b can also be used in other ways to provide a non-electrical connection between the header circuit board 460 and the first electrical connector 240. For example, the disconnect pin 470b can be coated with an insulating layer, while the conductive pin 470a can be left uncoated. For example, the first needle segment 471 or the second needle segment 472 of the disconnect pin 470b can be coated with an insulating layer.

[0471] By providing dummy second electrical connectors, different types of beauty heads 030 can have substantially the same arrangement of second electrical connectors 470. During production of beauty heads 030, the number of second electrical connectors 470 can be the same for each type, allowing the same mold to be used for all types of beauty heads 030, thus saving production costs.

[0472] The conduction pins 470a and disconnection pins 470b in the second electrical connector 470 can be placed in different raw material boxes during production, allowing production equipment to simply draw from the corresponding boxes. Alternatively, different types of head circuit boards 460 can be placed in different raw material boxes, and production equipment can remove head circuit boards 460 corresponding to different types of beauty heads 030 from different boxes to complete the production and assembly of different types of beauty heads 030. Alternatively, after the beauty heads 030 are produced, the second electrical connector 470 can be coated with an insulating layer to form the disconnection pins 470b in the corresponding second electrical connector 470.

[0473] Furthermore, there are different resistances between any two of the at least three sensing points. Thus, when any two sensing points are connected by the two conducting pins 470a, the resistance between the two sensing points is short-circuited. Thus, the identification circuit within the main body 010 can generate different electrical signals based on the different short-circuit conditions of the resistances, thereby identifying different beauty heads 030.

[0474] Specifically, as shown in FIG. 29 , when the beauty head 030 is connected to the main body 010, the two conducting pins 470a connect to the sensing points formed by the two first electrical connectors 240, forming a circuit. The resistance between the two first electrical connectors 240 is short-circuited by the two conducting pins 470a and the wiring within the head circuit board 460. This allows the main body 010 to sense the current characteristics and thus determine the type of beauty head 030. As the positions of the conducting pins 470a on the beauty head 030 change, the main body 010 can sense different current characteristics, thereby identifying different types of beauty heads 030.

[0475] It is understood that the sensing element, or the conductive pin 470a formed by the second electrical connector 470, can also simultaneously conduct electricity to the three sensing points formed by the first electrical connector 240 to form a corresponding resistor component. Different current characteristics are sensed through the main body 010, thereby identifying different types of beauty heads 030. Optionally, the current characteristic can be resistance, voltage, or current.

[0476] When the user assembles the beauty head 030 to the main body 010, the main body 010 identifies the type of the beauty head 030 and can provide a control mode corresponding to the type of the beauty head 030 for the user to choose, which can improve the user's usage experience.

[0477] It is understood that the beauty head 030 in the beauty device 001 provided herein can also be used with a straight-shaped body 010. In the straight-shaped body 010, the head shell 110 no longer tilts relative to the front shell 130 and the rear shell 120 along the first tilt direction U. This allows the entire housing 100 to extend along the first direction X. When using the straight-shaped beauty device 001, the user can tilt their wrist to adjust the angle between their skin and the beauty device 001.

[0478] It can be understood that in the above-mentioned embodiment in which the beauty head 030 and the main body 010 are detachable, multiple RF electrodes 420, the mounting shell 410, etc. form a RF component, wherein the mounting shell 410 is the RF shell. In this part of the embodiment, the multiple RF electrodes 420 can be indirectly installed on the skin-facing plate 011a through the mounting shell 410, etc., and the RF shell can be detachably installed on the skin-facing plate 011a.

[0479] Figure 30 shows an exploded view of a beauty device 001 in another embodiment of the present application. Figure 31 shows a cross-sectional view of a beauty device 001 in another embodiment of the present application.

[0480] As shown in Figures 30 and 31, this beauty instrument 001 includes a shell 100 and a radio frequency component. The shell 100 includes a first half shell, a second half shell and a head shell 110. The first half shell is the back shell 120, and the second half shell is the front shell 130. One end of the first half shell has a bending portion 121 that is bent and tilted toward the side close to the second half shell and is arranged in a first inclined direction U. The bending portion 121 can adapt to the head shell 110 so as to assemble the head shell 110, the front shell 130 and the back shell 120. The head shell 110, the front shell 130 and the back shell 120 are assembled to form the shell 100. When a user uses this beauty instrument 001, the head shell 110 of the beauty instrument 001 faces the user's skin.

[0481] In some embodiments, the head shell 110 is used to form the beauty head 030, the skin-facing plate 011a is a skin-contacting plate, and the plurality of radio frequency electrodes 420 are exposedly mounted on the skin-facing plate 011a.

[0482] In this embodiment, the beauty device 001 further includes a cold compress assembly 900, which is mounted on the head shell 110. The cold compress assembly 900 includes a cold compress 910 and a cooling plate 930. The cold compress 910 is exposed on the skin-facing plate 011a, and the cooling plate 930 is disposed within the head shell 110. The cooling plate 930 is thermally connected to the cold compress 910, allowing heat from the cold compress 910 to be transferred to the cooling plate 930. The cooling plate 930 absorbs the heat, thereby maintaining the temperature of the cold compress 910 at a relatively low level, thereby providing a cooling effect on the skin, and even achieving a freezing sensation.

[0483] In some embodiments, at least three RF electrodes 420 are optionally provided at intervals along a preset direction. The preset direction may be a second inclined direction V. At least one cold compress 910 is provided between any two adjacent RF electrodes 420. When RF current is generated between the two RF electrodes 420, the skin between the two RF electrodes 420 is stimulated by current for beauty treatment, while the cold compress 910 can simultaneously provide a cold compress to the skin, thereby improving the user experience and reducing the burning sensation of the user. More importantly, when the RF electrode 420 releases RF energy, the skin covered by the RF electrode 420 has a higher temperature due to the energy provided by the RF electrode 420. Although the cold compress 910 is provided between the two RF electrodes 420, the area covered by the RF electrode 420 will be cooled, but it is obvious that the skin between the two RF electrodes 420 is better cooled. In this way, a cold compress effect of alternating hot and cold can be formed, thereby improving the beauty effect.

[0484] This beauty device 001 can beautify the user's skin through the radio frequency electrode 420, and the tilted setting of the head shell 110 makes the radio frequency electrode 420 tilted in the first direction X. When the user holds the beauty device 001, the radio frequency electrode 420 and the cold compress 910 can more easily fit the user's skin. The head shell 110 is provided with an assembly recess 11314, which can also facilitate the demolding of the head shell 110 after molding. The bent portion 121 generally protrudes from the rear shell 120, and the head shell 110 is connected to the bent portion 121 and the front shell 130. The assembly recess 11314 of the head shell 110 is mated with the bent portion 121. The bending portion 121 roughly protrudes from the rear shell 120, which means that the bending portion 121 extends from the rear shell 120 as a whole toward the head shell 110, and the front shell 130 does not directly cooperate with the bending portion 121, so that after the front shell 130 and the rear shell 120 are connected, the bending portion 121 roughly protrudes from the rear shell 120.

[0485] It is understood that the beauty device 001, with the beauty head 030 and main body 010 detachable, can be designed as a portable RF beauty device, combining the RF component and gas source assembly 500 into a handheld housing to achieve miniaturization and portability of RF beauty treatments. In the above embodiment, the mounting housing 410 of the beauty head 030, the outer housing 100 of the main body 010, and the connecting inner housing 210 together form the handheld housing, also known as the protective housing. In this way, by assembling the RF components (RF electrodes 420, RF circuit board 810, etc.) onto the handheld shell, the miniaturization and portability of the RF beauty instrument can be achieved, and by providing a negative pressure tank 4111 and an air source component 500 used in conjunction with the negative pressure tank 4111 on the handheld shell, when the RF beauty instrument is working, the skin can be sucked into the negative pressure tank 4111 through the negative pressure tank 4111, and then a RF current can be emitted to the skin after being sucked in through the RF electrode 420, so that the RF current can penetrate the skin sucked into the negative pressure tank 4111, thereby increasing the injection depth of the RF energy and improving the beauty effect.

[0486] It can be understood that in the above embodiment, in order to facilitate improving assembly efficiency, the beauty head 030 and the main body 010 are designed to be detachable structures, but in other embodiments, the beauty head 030 and the main body 010 of the portable radio frequency beauty instrument can also be designed to be non-detachable or difficult to detach structures. At this time, the corresponding detachable related structures can be cancelled, such as canceling the first electrical connector 240 and the second electrical connector 470, canceling one of the first airflow connection part 232 and the second airflow connection part 4114, canceling at least one of the head circuit board 460 and the main body circuit board 250, canceling the connection inner shell 210, etc., which are all adaptively changed structures, such as designing the handheld shell to be in the form of the outer shell 100 in the embodiments shown in Figures 30 and 31, which will not be described one by one here.

[0487] It can be understood that in some embodiments, the handheld shell is the protective shell.

[0488] The above description is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements within the technical scope disclosed in the present application should be included in the disclosure scope of the present application.

Claims

1. A beauty instrument, characterized in that: include; main body; The beauty head includes a negative pressure tank and a radio frequency electrode. The negative pressure tank is used to absorb the user's skin with negative pressure to absorb the skin into the negative pressure tank. The radio frequency electrode is used to release radio frequency current to the user's skin. The beauty head is detachably connected to the main body; When the beauty head is connected to the main body, the negative pressure tank is communicated with the main body to generate negative pressure, and the radio frequency electrode is electrically connected to the main body so that the main body provides electrical energy to the radio frequency electrode.

2. The beauty instrument according to claim 1, wherein: The main body includes a first electrical connector, and the beauty head further includes a second electrical connector, the second electrical connector being electrically connected to the radio frequency electrode. When the beauty head is connected to the main body, the first electrical connector is electrically connected to the second electrical connector, so that the main body provides electrical energy to the radio frequency electrode. The main body includes a first airflow connection part, and the beauty head also includes a second airflow connection part connected to the negative pressure tank. When the beauty head is connected to the main body, the first airflow connection part is connected to the second airflow connection part, so that the negative pressure tank is connected to the main body.

3. The beauty instrument according to claim 2, wherein: The main body has a first assembly surface, and the beauty head has a second assembly surface. When the beauty head is connected to the main body, the first assembly surface and the second assembly surface are arranged correspondingly; The first electrical connector is exposed from the first assembly surface to the main body, and the second electrical connector is exposed from the second assembly surface to the beauty head, so that when the beauty head is connected to the main body, the first electrical connector is electrically connected to the second electrical connector; and / or, The first airflow connection part is exposed to the main body from the first assembly surface, and the second airflow connection part is exposed to the beauty head from the second assembly surface, so that the first airflow connection part and the second airflow connection part are connected when the beauty head is connected to the main body.

4. The beauty instrument according to claim 3, wherein: The main body further includes a main control board, the main control board being electrically connected to the first electrical connector to control the radio frequency electrode to release radio frequency current through the first electrical connector and the second electrical connector; and / or, When the beauty head is connected to the main body, the first assembly surface and the second assembly surface are arranged correspondingly in the disassembly direction; and / or, When the beauty head is connected to the main body, the first assembly surface contacts or abuts against the second assembly surface.

5. The beauty instrument according to any one of claims 1 to 4, characterized in that: The radio frequency electrode is disposed close to the negative pressure tank, or the radio frequency electrode at least partially extends to the inner wall of the negative pressure tank, so that the radio frequency electrode releases radio frequency current to the skin adsorbed by the negative pressure of the negative pressure tank.

6. The beauty instrument according to claim 3, wherein: The main body includes a connection module, which includes the first electrical connector and a first airflow connection portion. The first assembly surface is provided on the connection module. The beauty head is detachably connected to the connection module so that the beauty head is detachably connected to the main body.

7. The beauty instrument according to claim 6, characterized in that: The connecting module or the beauty head is provided with an assembly groove, and the bottom of the assembly groove forms the first assembly surface or the second assembly surface, so that the beauty head can be installed in the assembly groove of the connecting module or the connecting module can be installed in the assembly groove of the beauty head, and the relative position of the connecting module and the beauty head is restricted.

8. The beauty instrument according to claim 6, wherein: The connection module further includes a locking assembly, which is used to connect the beauty head when the first assembly surface contacts or abuts the second assembly surface, so as to limit the beauty head from moving away from the connection module.

9. The beauty instrument according to claim 8, characterized in that: The locking assembly is used to engage with the beauty head when the first assembly surface contacts or abuts the second assembly surface, so as to limit the beauty head from moving away from the connection module; or, The locking assembly is used to magnetically attract the beauty head when the first assembly surface contacts or abuts the second assembly surface, so as to prevent the beauty head from moving away from the connecting module.

10. The beauty instrument according to claim 9, characterized in that: The locking assembly includes a snap-fit portion, and the beauty head is provided with a snap-fit portion; The engaging portion is provided on the first assembly surface, and the connecting portion is provided on the second assembly surface; When the first assembly surface contacts or abuts the second assembly surface, the engaging portion cooperates with the connecting portion to limit the relative position of the beauty head and the main body.

11. The beauty instrument according to claim 8, wherein: The connection module also includes an unlocking component; The unlocking component is used to release the cooperation between the locking component and the beauty head.

12. The beauty instrument according to claim 10, wherein: The connection module further includes an unlocking component, the unlocking component acting on the locking component; The unlocking assembly is configured such that when the unlocking assembly is pressed, the unlocking assembly drives the engaging portion and / or the engaging portion to slide, so as to release the cooperation between the locking assembly and the engaging portion.

13. The beauty instrument according to any one of claims 8 to 12, characterized in that: The connection module is provided with an assembly groove, the first airflow connection portion is provided at the bottom of the assembly groove, the bottom of the assembly groove forms the first assembly surface, the beauty head is installed in the assembly groove, and the first assembly surface contacts or abuts against the second assembly surface; The connection module also includes a movable limiting member, which is slidably arranged on the inner side of the bottom of the assembly groove, and the bottom of the assembly groove is provided with a buckling movable hole. The movable limiting member has a clamping portion provided at the buckling movable hole, and a clamping portion is provided on the second assembly surface. The movable limiting member has a locking position in which the clamping portion and the clamping portion are clamped together through the buckling movable hole, and an unlocking position in which the clamping portion and the clamping portion are separable.

14. The beauty instrument according to claim 13, wherein: The engaging portion is protruding from the surface of the movable limiting member, and the engaging portion is movably arranged in the buckling movable hole in the sliding direction to cooperate with the engaging portion; and / or, A guide member is convexly provided on the inner side surface of the bottom of the assembly groove, and the guide member defines a slide groove structure, and the movable limit member is slidably arranged in the slide groove structure; and / or, The main body also includes an outer shell with an opening, the outer shell is provided with an inward inner flange at the opening, the connection module also includes a connection inner shell, the connection inner shell defines the assembly groove, the connection inner shell is installed in the outer shell and is provided at the opening of the outer shell so that the assembly groove is exposed from the opening of the outer shell; the connection inner shell includes The inner substrate and the inner enclosure panel are combined to form the assembly groove, and the inner substrate forms the bottom of the assembly groove.

15. The beauty instrument according to claim 3, wherein: The first electrical connection member is a PIN needle; and / or the second electrical connection member is a PIN needle.

16. The beauty instrument according to claim 15, wherein: The beauty head further includes a mounting shell and a head circuit board disposed in the mounting shell, the negative pressure groove and the second assembly surface are both disposed on the mounting shell and are located on opposite sides of the mounting shell, the radio frequency electrode is mounted on the mounting shell, and the head circuit board is electrically connected to the radio frequency electrode; one end of the second electrical connector is mounted on the mounting shell and exposed from the mounting shell to form a pin point for electrical connection with the first electrical connector; the other end of the second electrical connector elastically contacts or abuts against the head circuit board for electrical connection with the head circuit board; and / or, The main body further includes a main circuit board disposed in the main body, one end of the first electrical connector is mounted on the main circuit board, and the other end extends from the first assembly surface to elastically contact or abut against the second electrical connector; and / or, There are multiple first electrical connectors.

17. The beauty instrument according to claim 3, wherein: When the beauty head is connected to the main body, the first airflow connection part is inserted into the second airflow connection part, or the second airflow connection part is inserted into the second airflow connection part, so that the first airflow connection part is connected with the second airflow connection part.

18. The beauty instrument according to claim 3, wherein: The main body includes a connection module: The connection module is provided with an assembly groove, the bottom wall of the assembly groove forms the first assembly surface, the first airflow connection portion protrudes from the first assembly surface to be inserted into the second airflow connection portion, so that the first airflow connection portion is connected to the second airflow connection portion; or, The beauty head is provided with an assembly groove, the bottom wall of the assembly groove forms the second assembly surface, and the second airflow connection part protrudes from the second assembly surface to be inserted into the first airflow connection part, so that the first airflow connection part is connected with the second airflow connection part.

19. The beauty instrument according to claim 3, wherein: The beauty head further includes a mounting shell, the mounting shell including a shell body and a cover body, the shell body including a negative pressure base plate, a negative pressure enclosure plate connected to the negative pressure base plate and protruding toward one side, and a receiving enclosure plate connected to the negative pressure enclosure plate and protruding toward the other side, the negative pressure enclosure plate and the negative pressure base plate forming the negative pressure groove, and the radio frequency electrode is provided on the negative pressure enclosure plate and / or the negative pressure base plate; The negative pressure base plate and the receiving enclosure form a receiving cavity with an opening, the cover is installed at the opening of the receiving cavity, the second assembly surface is provided on the outer side of the cover, and the second electrical connector is installed on the cover and exposed from the cover; The second airflow connection portion extends from the bottom of the negative pressure tank toward the cover body and is exposed from the cover body to communicate with the first airflow portion.

20. The beauty instrument according to claim 19, wherein: The second airflow connection portion is a negative pressure pipe, the cover body is provided with a negative pressure hole, and the second airflow connection portion is connected to the negative pressure hole to be exposed from the cover body; and / or, A breathable member is provided in the second airflow connection portion; and / or, The second electrical connector is a PIN needle, and the beauty head further includes a head circuit board provided in the mounting shell, and the head circuit board is electrically connected to the radio frequency electrode; one end of the second electrical connector is installed on the cover body and exposed from the cover body to form a pin point to be electrically connected to the first electrical connector; the other end of the second electrical connector elastically contacting or abutting against the head circuit board to be electrically connected to the head circuit board; and / or, The main body also includes a shell with an opening and a connecting module, the shell is provided with an inward inner flange at the opening, the connecting module includes the first electrical connector, a first airflow connecting portion and a connecting inner shell, the connecting inner shell defines an assembly groove, the connecting inner shell is installed in the shell and is provided at the opening of the shell so that the assembly groove is exposed from the opening of the shell; the bottom of the assembly groove forms the first assembly surface, the beauty head is installed in the assembly groove, and the first assembly surface contacts or abuts against the second assembly surface; the first airflow connecting portion is provided at the bottom of the assembly groove and protrudes from the first assembly surface so as to be inserted into the second airflow connecting portion so as to be connected with the second airflow connecting portion.

21. The beauty instrument according to claim 20, wherein: The outer shell includes a first half shell, a second half shell and a head shell having an opening and an inner flange. The first half shell is connected to one side of the second half shell to form a holding portion. One end of the first half shell has a bending portion that is bent and inclined toward a side close to the second half shell and is arranged in a first inclined direction. The bending portion protrudes from the second half shell. The head shell is connected to the bending portion and the second half shell. The head shell has an assembly recess that cooperates with the bending portion, and the opening is used to be set toward the user's face; the connecting inner shell is arranged in the head shell.

22. The beauty instrument according to claim 19, wherein: The first airflow connection part is an airflow connection pipe, which protrudes from the first assembly surface to be inserted into the second airflow connection part to communicate with the second airflow connection part.

23. The beauty instrument according to claim 22, characterized in that: The main body further includes a sealing ring, which is sleeved on the outer periphery of the airflow connecting tube to seal the airflow connecting tube and the second airflow connecting portion.

24. The beauty instrument according to claim 3, wherein: The main body further includes a shell having an opening, a connection module, and a main circuit board disposed in the shell, wherein the shell is provided with an inwardly facing inner flange at the opening, the connection module includes the first electrical connector, a first airflow connection portion, and a connection inner shell, the connection inner shell defining an assembly slot, the connection inner shell being mounted in the shell and disposed at the opening of the shell such that the assembly slot is exposed from the opening of the shell; The first airflow connection portion is provided at the bottom of the assembly groove, and the bottom of the assembly groove forms the first assembly surface. The beauty head is installed in the assembly groove, and the first assembly surface contacts or abuts against the second assembly surface. The main circuit board is arranged on the inner side of the bottom of the assembly groove, and the first electrical connector is a PIN needle. One end of the first electrical connector is mounted on the main circuit board, and the other end passes through the first assembly surface to elastically contact or abut against the second electrical connector. The connection module further includes a movable limiting member, the movable limiting member being slidably disposed on the inner side of the bottom of the assembly slot, the bottom of the assembly slot being provided with a buckling movable hole, the movable limiting member having a clamping portion disposed at the buckling movable hole, a clamping portion being provided on the second assembly surface, the movable limiting member having a locking position in which the clamping portion and the clamping portion are engaged with each other through the buckling movable hole, and an unlocking position in which the clamping portion and the clamping portion are separable; The movable limiting member is an annular structure, the first electrical connector is arranged on the outside of the annular structure, and the first airflow connection portion is arranged on the inside of the annular structure.

25. The beauty instrument according to any one of claims 2 to 4, characterized in that: The main body also includes an air flow driving member: The airflow driving member is connected to the first airflow connecting portion and is used to drive the airflow to flow in the first airflow connecting portion.

26. The beauty instrument according to claim 25, wherein: An exhaust channel is formed between the second assembly surface of the beauty head and the first assembly surface of the main body. The exhaust channel is communicated with the airflow driving member to exhaust the gas driven by the airflow driving member.

27. The beauty instrument according to claim 26, wherein: The second assembly surface is provided with an exhaust groove, and the exhaust groove and the first assembly surface form the exhaust channel.

28. The beauty instrument according to claim 4, wherein: The main body also includes an air flow driving member: The airflow driving member is connected to the first airflow connecting portion and is used to drive the airflow to flow in the first airflow connecting portion; The airflow driving component includes an air pump, and the main control board is electrically connected to the air pump to control the air pump.

29. The beauty instrument according to claim 2, wherein: The first airflow connection portion and the second airflow connection portion are detachably connected to each other so that the first airflow connection portion and the second airflow connection portion are in communication; and / or, The ventilation area of the connecting channel of the second airflow connecting portion is smaller than the notch area of the negative pressure groove.

30. The beauty instrument according to claim 4, wherein: The first electrical connector contacts or abuts against the second electrical connector in the disassembly direction, so that when the beauty head is connected to the main body, the first electrical connector is electrically connected to the second electrical connector; and / or, The first airflow connection part and the second airflow connection part are butted against each other in the disassembly direction, so that when the beauty head is connected to the main body, the first airflow connection part and the second airflow connection part are communicated with each other.

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