Radio frequency beauty instrument

Abstract

The utility model is applicable to the field of beauty instruments, and provides a radio frequency beauty instrument, which comprises a shell, a first temperature sensor, a second temperature sensor and an electrode, the first temperature sensor, the second temperature sensor and the electrode are all mounted on the shell, the first temperature sensor is arranged corresponding to the electrode, and the second temperature sensor is arranged corresponding to the electrode. The temperature sensor is used for detecting the temperature of the electrode; the second temperature sensor is used for detecting the temperature of human skin. According to the radio frequency beauty instrument provided by the utility model, the temperature of the skin is detected, and the temperature of the electrode is detected at the same time, so that the temperature detection accuracy of the radio frequency beauty instrument is improved, the skin temperature can be effectively controlled, and the experience feeling of a user is enhanced.

Description

Technical Field

[0001] The utility model belongs to the field of beauty instruments, and in particular relates to a radio frequency beauty instrument. Background Art

[0002] As a popular beauty instrument in recent years, radio frequency beauty instrument has provided people with great convenience in beauty treatment. When radio frequency (RF) beauty instrument is used for skin treatment, the electrodes on it will heat the skin positioning tissue, causing the subcutaneous collagen to shrink and tighten, and at the same time take cooling measures on the skin surface. The dermis is heated while the epidermis maintains a normal temperature. At this time, two reactions will occur: one is that the dermis becomes thicker, and wrinkles become lighter or disappear; the other is that the morphology of subcutaneous collagen is reshaped and new collagen is produced. After treatment with the beauty instrument, the skin becomes firmer.

[0003] However, when the existing beauty instrument performs beauty care and treatment on the skin, only one temperature sensor is provided for detecting the temperature, which may cause the beauty instrument to detect the skin temperature inaccurately and fail to effectively control the skin temperature in a timely manner, thereby resulting in a poor user experience. Utility Model Content

[0004] The utility model aims to provide a radio frequency beauty instrument, aiming to solve the problem that the beauty instrument in the prior art is only provided with one temperature sensor to detect the temperature when performing beauty treatment on the skin, which will cause the beauty instrument to detect the skin temperature inaccurately and fail to control the skin temperature in a timely and effective manner, thus resulting in a poor user experience.

[0005] The utility model is implemented as follows: a radio frequency beauty instrument, which includes a shell, a first temperature sensor, a second temperature sensor and an electrode, wherein the first temperature sensor, the second temperature sensor and the electrode are all arranged in the shell, and the first temperature sensor is arranged corresponding to the electrode to detect the temperature of the electrode; the second temperature sensor is used to detect the temperature of human skin.

[0006] Optionally, the first temperature sensor is connected to the electrode, and / or,

[0007] The first temperature sensor is arranged inside or on the inner side of the electrode, and / or,

[0008] The second temperature sensor is disposed in the electrode, and / or,

[0009] The first temperature sensor is a contact temperature sensor, and / or,

[0010] The second temperature sensor is a non-contact temperature sensor.

[0011] Optionally, the housing has a fitting surface facing human skin during operation, the electrode is arranged on the fitting surface, and the second temperature sensor is arranged in the housing;

[0012] The fitting surface is provided with a detection window corresponding to the second temperature sensor, so that the second temperature sensor is used to detect the skin temperature of the human body through the detection window.

[0013] Optionally, the shell has a fitting surface facing the human skin during operation, the electrode is arranged on the fitting surface, a negative pressure cavity is formed on the fitting surface, the electrode is arranged close to the negative pressure cavity, or the electrode is at least partially arranged on the side wall of the negative pressure cavity;

[0014] The second temperature sensor is disposed at the bottom of the negative pressure chamber to detect the temperature of the human skin sucked into the negative pressure chamber; or,

[0015] The second temperature sensor is disposed on a side wall of the negative pressure chamber to detect the temperature of the human skin sucked into the negative pressure chamber.

[0016] Optionally, a negative pressure chamber is formed on the shell;

[0017] The electrode comprises two electrode sheets with opposite polarities and arranged opposite to each other. Both of the electrode sheets are installed on the side walls of the negative pressure chamber. The first temperature sensor is installed on at least one of the electrode sheets.

[0018] Optionally, the second temperature sensor is installed on a side of one of the electrode sheets facing away from the other electrode sheet, and a through hole for detection by the second temperature sensor is correspondingly provided on the electrode sheet.

[0019] Optionally, the first temperature sensor is an NTC temperature sensor, and / or,

[0020] The second temperature sensor is an infrared temperature sensor.

[0021] Optionally, the radio frequency beauty instrument further includes a control component, and the first temperature sensor and the second temperature sensor are both electrically connected to the control component, and the control component is used to control the electrode according to the temperature values ​​detected by the first temperature sensor and the second temperature sensor.

[0022] Optionally, the control component includes a comparator, and the comparator is used to be connected to the first temperature sensor and the second temperature sensor respectively, and the control component is used to control the electrode according to the comparison result of the comparator.

[0023] Optionally, a detection window is provided at the bottom of the negative pressure chamber, and the second temperature sensor is installed on the inner side of the bottom of the negative pressure chamber to detect the skin temperature of a human body through the detection window.

[0024] Optionally,

[0025] The detection window includes a detection hole arranged at the bottom of the negative pressure chamber and a light-transmitting sheet sealed and connected to the detection hole, wherein the light-transmitting sheet corresponds to the second temperature sensor.

[0026] Optionally,

[0027] The radio frequency beauty instrument further comprises a transfer circuit board arranged on the inner side of the bottom of the negative pressure chamber, the transfer circuit board is provided with a sensor mounting position and a protective cover arranged outside the sensor mounting position, the second temperature sensor is installed at the sensor mounting position, one end of the protective cover abuts against the bottom of the negative pressure chamber, and an opening at one end of the protective cover is arranged corresponding to the detection hole; and / or,

[0028] The light-transmitting sheet is a silicon sheet; and / or,

[0029] A mounting recess is formed at one end of the detection hole, and the light-transmitting sheet is glued to the mounting recess.

[0030] Optionally, the radio frequency beauty instrument further comprises a control component, and an air source component electrically connected to the control component is provided in the housing;

[0031] A negative pressure cavity is also formed on the shell, and the electrode is arranged close to the negative pressure cavity, or the electrode is at least partially arranged on the side wall of the negative pressure cavity. A negative pressure channel connected to the negative pressure cavity is also provided in the shell, and one end of the negative pressure channel is connected to the negative pressure cavity, and the other end is connected to the air source component.

[0032] Optionally, the air source assembly includes an air pump, an air valve and a pressure sensor connected in sequence, and the pressure sensor is connected to the negative pressure channel.

[0033] Optionally, the radio frequency beauty instrument includes a beauty head and a main body part detachably connected to the beauty head, the beauty head includes a head shell, the main body part includes a main body shell, the head shell is detachably connected to the main body shell, the shell includes the head shell and the main body shell, the first temperature sensor, the second temperature sensor and the electrode are arranged on the head shell, and a negative pressure chamber is formed on the head shell.

[0034] Optionally, the head shell includes a cylindrical shell with openings at both ends, a partition plate arranged on the inner side of the cylindrical shell and dividing the inner cavity of the cylindrical shell into a negative pressure cavity and an installation cavity, the electrode is connected to the adapter circuit board, and the adapter circuit board of the radio frequency beauty instrument is installed in the installation cavity.

[0035] Optionally, a breathable pad installation groove is provided on the partition plate, and the breathable pad installation groove passes through the partition plate from the bottom of the negative pressure chamber, and the negative pressure channel includes the breathable pad installation groove; the breathable pad installation groove is installed with a breathable pad and / or a breathable and waterproof membrane.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] The radio frequency beauty instrument of the utility model is provided with a first temperature sensor and a second temperature sensor. The first temperature sensor is connected to the electrode for detecting the temperature of the electrode, and the second temperature sensor is used to detect the temperature of human skin. Thus, when detecting the temperature of the skin, the temperature of the electrode can also be detected simultaneously, thereby effectively avoiding the influence of excessive electrode temperature on the skin temperature, improving the accuracy of temperature detection by the radio frequency beauty instrument, thereby effectively and timely controlling the skin temperature and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional schematic diagram of the radio frequency beauty instrument provided in the first embodiment of the utility model;

[0039] Figure 2 It is a schematic diagram of a detection window provided on the fitting surface of the radio frequency beauty instrument provided in the first embodiment of the utility model;

[0040] Figure 3 This is an exploded view of the radio frequency beauty instrument provided in the first embodiment of the utility model;

[0041] Figure 4 This is a schematic diagram of the internal structure of the radio frequency beauty instrument provided in the first embodiment of the utility model;

[0042] Figure 5 It is a three-dimensional schematic diagram of the radio frequency beauty instrument provided in the second embodiment of the utility model;

[0043] Figure 6 It is a side cross-sectional schematic diagram of the beauty head of the radio frequency beauty instrument provided in the second embodiment of the utility model;

[0044] Figure 7 It is a schematic diagram of the head shell provided in the second embodiment of the present utility model;

[0045] Figure 8 It is a cross-sectional schematic diagram of the radio frequency beauty instrument provided in the second embodiment of the present utility model.

[0046] Reference numerals:

[0047] 10. radio frequency beauty instrument; 11. housing; 111. fitting surface; 1111. detection window; 11111. light-transmitting sheet; 11112. detection hole; 12. negative pressure channel;

[0048] 20. Beauty head; 21. Head shell; 211. Bottom plate; 2140. Cylinder shell; 21401. Mounting cavity; 21402. Small end; 21403. Large end; 2142. Separator; 21421. Breathable pad mounting groove; 218. Breathable groove; 219. Convex cylinder; 22. Electrode; 221. Electrode sheet; 2211. Mounting groove; 23. First temperature sensor; 24. Second temperature sensor; 25. Negative pressure cavity; 26. Breathable pad;

[0049] 4. Main body; 40. Main body shell;

[0050] 50. Control component; 51. Controller; 52. Adapter circuit board; 523. Sensor installation position; 53. Pin; 54. Protective cover;

[0051] 60, air source assembly; 61, air pump; 62, air valve; 621, first valve port; 622, second valve port; 623, third valve port; 63, pressure sensor;

[0052] 80. On / off key; DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0054] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0055] It should also be noted that the directional terms such as left, right, up, and down in this embodiment are merely relative concepts or are based on the normal use status of the product and should not be considered as restrictive.

[0056] like Figure 1 and Figure 4, which are schematic diagrams of the first embodiment of the radio frequency beauty instrument 10 provided by the present utility model. The radio frequency beauty instrument 10 includes a housing 11, a first temperature sensor 23, a second temperature sensor 24 and an electrode 22. The first temperature sensor 23, the second temperature sensor 24 and the electrode 22 are all arranged on the housing 11. The first temperature sensor 23 is arranged corresponding to the electrode 22 to detect the temperature of the electrode 22; the second temperature sensor 24 is used to detect the temperature of human skin.

[0057] In some embodiments, the radio frequency beauty instrument 10 includes a beauty head 20 and a main body 4 detachably connected to the beauty head 20, the beauty head 20 includes a head shell 21, the main body 4 includes a main shell 40, the head shell 21 is detachably connected to the main shell 40, the shell 11 includes the head shell 21 and the main shell 40, the first temperature sensor 23, the second temperature sensor 24 and the electrode 22 are all arranged on the head shell 21, and a negative pressure cavity 25 is formed on the head shell 21. Among them, the head shell 21 can be formed in one piece or in separate parts, and the main shell 40 can be in the form of a structure in which the parts are injection molded and then assembled. Negative pressure can be formed in the negative pressure cavity 25 to absorb the skin into the negative pressure cavity 25, so that the electrode 22 can stimulate a larger skin area. The beauty head 20 and the main body 4 can be detachably connected by means of a snap connection or a magnetic connection.

[0058] Of course, the dual temperature sensor detection solution of the present application can also be other forms of radio frequency beauty instrument solutions, such as a freezing point radio frequency beauty instrument with a cold compress component.

[0059] It is understood that when the radio frequency beauty device 10 is working, the electrode 22 needs to be attached to the skin, and the radio frequency beauty device 10 transmits radio frequency energy to the skin through the electrode 22, and the radio frequency energy reaches deep into the skin to beautify the skin. In this process, the temperature of the electrode 22 will increase, and the temperature of the electrically stimulated skin will also increase.

[0060] The radio frequency beauty instrument 10 provided by the embodiment of the utility model is provided with a first temperature sensor 23 and a second temperature sensor 24 on the radio frequency beauty instrument 10. The first temperature sensor 23 is connected to the electrode 22 for detecting the temperature of the electrode 22, and the second temperature sensor 24 is used to detect the temperature of human skin. Therefore, when detecting the temperature of the skin, the temperature of the electrode 22 can also be detected at the same time. In this way, the skin temperature and the temperature of the electrode 22 can be detected and monitored at the same time, thereby effectively avoiding discomfort or injury caused by excessive skin temperature when the radio frequency beauty instrument is working, thereby improving the user experience; and by using dual temperature sensors to detect the temperature of the electrode and the skin respectively, the accuracy of the detection can be improved.

[0061] In some embodiments, the first temperature sensor 23 is connected to the electrode 22, and the connection between the first temperature sensor 23 and the electrode 22 can be either a contact connection or a non-contact connection. For example, when the first temperature sensor 23 is a non-contact sensor, the first temperature sensor 23 and the electrode 22 may not be directly connected.

[0062] In some embodiments, the first temperature sensor 23 can be arranged inside the electrode 22, which can improve space utilization to achieve miniaturized design, avoid external interference, and improve detection accuracy. The first temperature sensor 23 can also be arranged beside the electrode 22, such as the inner side, and the first temperature sensor 23 can be attached to the inner side of the electrode 22 to reduce the difficulty of electrode design.

[0063] In some embodiments, the second temperature sensor 24 is inserted into the electrode 22 , and correspondingly, a hole for the second temperature sensor 24 to be inserted is provided on the electrode 22 to detect the temperature of the skin.

[0064] In some embodiments, the second temperature sensor 24 may be a non-contact temperature sensor.

[0065] Among them, non-contact sensors include infrared temperature sensors, ultrasonic temperature sensors, microwave temperature sensors, etc. Contact temperature sensors include semiconductor temperature sensors / thermal temperature sensors (such as NTC thermistor temperature sensors or PCT thermistor temperature sensors, etc.), thermocouple temperature sensors, etc. The above embodiments can be implemented separately or in combination without conflict.

[0066] In other embodiments, see Figure 2 The housing 11 has a fitting surface 111 facing the human skin during operation, the electrode 22 is arranged on the fitting surface 111, and the second temperature sensor 24 is arranged in the housing 11; a detection window 1111 corresponding to the second temperature sensor 24 is arranged on the fitting surface 111, so that the second temperature sensor 24 is used to detect the human skin temperature through the detection window 1111. In this way, by arranging the second temperature sensor 24 in the housing, the skin temperature is detected through the detection window on the fitting surface, thereby avoiding external interference.

[0067] In this embodiment, the fitting surface 111 is provided on the end surface of the head shell 21, and the electrode 22 is provided on the fitting surface 111 of the head shell 21 to ensure that when working, the fitting surface 111 fits the skin while the electrode 22 also fits the skin, so that electrical stimulation can be formed on the skin, and the second temperature sensor 24 detects the temperature of the human skin through the detection window 1111. The detection window 1111 can be an opening provided on the fitting surface 111, and the second temperature sensor 24 can detect the temperature of the human skin through the detection window 1111. That is, in this embodiment, the negative pressure chamber 25 may not be provided on the shell 11, and the detection window 1111 is directly provided on the end surface of the head shell 21.

[0068] In some embodiments, see Figure 1 , Figure 3 , Figure 4 A negative pressure cavity 25 is formed on the fitting surface 111, and the electrode 22 is arranged close to the negative pressure cavity 25, or the electrode 22 is at least partially arranged on the side wall of the negative pressure cavity 25; the second temperature sensor 24 is arranged at the bottom of the negative pressure cavity 25 to detect the temperature of the human skin sucked into the negative pressure cavity 25; or the second temperature sensor 24 can also be arranged on the side wall of the negative pressure cavity 25, and can also be used to detect the temperature of the human skin sucked into the negative pressure cavity 25.

[0069] Optionally, the negative pressure chamber 25 can be formed by a concave fitting surface 111 on the shell 11, and the fitting surface 111 is the end surface of the shell 11. Negative pressure can be generated in the negative pressure chamber 25 through the air source component 60 in the main shell 40 to absorb the skin into the negative pressure chamber 25, so that the radio frequency energy generated by one electrode 22 can penetrate the skin and reach the other electrode 22, thereby increasing the penetration depth to form a more effective stimulation to the dermis and improve the beauty effect.

[0070] Furthermore, the electrode 22 is close to the negative pressure chamber 25 or is at least partially disposed on the side wall of the negative pressure chamber 25, which can shorten the radio frequency path and improve the radio frequency effect.

[0071] In some embodiments, the second temperature sensor 24 can be disposed at the bottom of the negative pressure chamber 25. When the skin is adsorbed into the negative pressure chamber 25, the second temperature sensor 24 is closer to the skin, so that the skin temperature can be measured more accurately and timely. More importantly, when the second temperature sensor is an infrared sensor or other sensor that needs to transmit and receive signals, by disposing the second temperature sensor 24 at the bottom of the negative pressure chamber 25, other structures (such as electrodes, negative pressure chamber side walls, etc.) can be avoided from interfering with the measurement results.

[0072] It should be noted that there are three options for arranging the second temperature sensor 24 at the bottom of the negative pressure chamber 25: ① The second temperature sensor 24 is arranged on the outer side of the bottom of the negative pressure chamber 25, that is, the side of the bottom facing the bonding surface; ② The second temperature sensor 24 is arranged inside the bottom of the negative pressure chamber 25; ③ The second temperature sensor 24 is arranged on the inner side of the bottom of the negative pressure chamber 25.

[0073] In some other embodiments, the second temperature sensor 24 may also be disposed on the side wall of the negative pressure chamber 25 , that is, the location of the second temperature sensor 24 is not limited as long as it can detect the temperature of the skin.

[0074] In some embodiments, the electrode 22 includes two electrode sheets 221 with opposite polarities and arranged opposite to each other. Both electrode sheets 221 are installed on the side wall of the negative pressure chamber 25 , and the first temperature sensor 23 is installed on at least one of the electrode sheets 221 .

[0075] The electrode 22 may be a bipolar radio frequency electrode, including a pair of electrode sheets 221 with opposite polarities, that is, one of the two electrode sheets 221 is a positive electrode and the other is a negative electrode. The two electrode sheets 221 of the dual-frequency electrode are simultaneously attached to the surface of the skin, and the energy starts from the positive electrode and reaches the negative electrode, forming a semi-circular loop. A first temperature sensor 23 is provided on at least one of the two electrode sheets 221 to monitor the temperature of the electrode 22, so as to prevent the electrode 22 from being too hot and scalding the skin. Of course, the first temperature sensor 23 may also be provided on both electrode sheets 221, so that the temperature of the electrode 22 can be detected more accurately. In this embodiment, the number of pairs of electrodes 22 is not limited, and multiple pairs of electrodes 22 may be provided to form a wider stimulation area.

[0076] In some other embodiments, when the electrode 22 includes two electrode sheets 221 arranged opposite to each other, the second temperature sensor 24 can also be installed on the side of one electrode sheet 221 facing away from the other electrode sheet 221, and a through hole for detection by the second temperature sensor 24 is correspondingly provided on the electrode sheet 221. That is, in this embodiment, the second temperature sensor 24 can also be installed beside the electrode sheet 221, and a through hole is provided on the corresponding electrode sheet 221 for detection by the second temperature sensor 24, and the second temperature sensor 24 detects the temperature of the skin adsorbed into the negative pressure chamber 25 through the through hole on the electrode sheet 221.

[0077] In some embodiments, the first temperature sensor 23 is an NTC temperature sensor, and / or the second temperature sensor 24 is an infrared temperature sensor. That is, in this embodiment, the types and combinations of the first temperature sensor 23 and the second temperature sensor 24 are not limited, as long as they can play a normal detection function. The NTC temperature sensor is a thermistor and probe, and its principle is: the resistance value decreases rapidly as the temperature rises. By using this characteristic, the NTC thermistor can be used to determine the corresponding temperature by measuring its resistance value, thereby achieving the purpose of detecting and controlling the temperature, and the size of the NTC temperature sensor can be as small as 0.01 inches or a very small diameter, so that there is no need for too much installation space. The infrared temperature sensor is a thermal sensor, which uses the radiation heat effect to cause the temperature of the detection device to rise after receiving the radiation energy, thereby causing the temperature-dependent performance of the sensor to change. Therefore, when the second temperature sensor 24 is an infrared temperature sensor, it can detect the temperature of the skin without direct contact with the skin.

[0078] In some embodiments, the radio frequency beauty instrument 10 also includes a control component 50, and the first temperature sensor 23 and the second temperature sensor 24 are both electrically connected to the control component 50. The control component 50 is used to control the electrode 22 according to the temperature values ​​detected by the first temperature sensor 23 and the second temperature sensor 24, such as controlling the electrode 22 to stop working or reduce the power.

[0079] The control assembly 50 further includes a controller 51, a transfer circuit board 52, and a plurality of pins 53 which are electrically connected in sequence. The transfer circuit board 52 may be disposed in the head shell 21, the electrode 22 is connected to the transfer circuit board 52, the controller 51 is disposed in the main body shell 40, one end of the pin 53 is fixed in the main body shell 40, the other end passes through the main body shell 40 and partially protrudes outside the main body shell 40, when the beauty head 20 is mounted on the main body 4, the pin 53 is connected to the transfer circuit board 52 to be electrically connected to the electrode 22. Optionally, the beauty head 20 is provided with a plurality of jacks (not shown in the figure), and the pins 53 are inserted into the jacks to be electrically connected to the transfer circuit board 52 and the electrode 22.

[0080] In some embodiments, the control component 50 further includes a comparator (not shown in the figure), which is used to connect to the first temperature sensor 23 and the second temperature sensor 24 respectively, and the control component 50 is used to control the electrode 22 according to the comparison result of the comparator. The comparator is used to determine the maximum value of the temperatures detected by the first temperature sensor 23 and the second temperature sensor 24, and the working parameters of the radio frequency electrode 22 are controlled according to the maximum value of the temperatures detected by the first temperature sensor 23 and the second temperature sensor 24. Compared with the detection of a single temperature sensor, the coordinated use of the first temperature sensor 23 and the second temperature sensor 24 can accurately detect the skin temperature, and then accurately adjust the working parameters of the radio frequency electrode 22, effectively control the skin temperature, and improve the user experience.

[0081] See also Figure 1 , Figure 4 The control assembly 50 further includes a switch key 80. The main body shell 40 is also provided with a card insertion hole. The switch key 80 is installed on the card insertion hole and is electrically connected to the controller 51. When the switch key 80 is pressed, the electrode 22 can emit electromagnetic waves to make the beauty instrument work. When the switch key 80 is not pressed, the electrode 22 will not work.

[0082] In some embodiments, see Figure 1 , Figures 5 to 8 The detection window 1111 is arranged at the bottom of the negative pressure chamber 25, and the second temperature sensor 24 is installed on the inner side of the bottom of the negative pressure chamber 25. The second temperature sensor 24 is arranged opposite to the detection window 1111 to detect the human skin temperature through the detection window 1111.

[0083] In some embodiments, see Figures 5 to 8 The detection window 1111 includes a detection hole 11112 provided at the bottom of the negative pressure chamber 25 and a light-transmitting sheet 11111 sealed and connected to the detection hole 11112. The light-transmitting sheet 11111 corresponds to the second temperature sensor 24. When the second temperature sensor 24 is an infrared temperature sensor, infrared light can be emitted through the light-transmitting sheet 11111 for detection. The light-transmitting sheet 11111 can protect the second temperature sensor 24.

[0084] In some embodiments, the adapter circuit board 52 of the control component 50 is arranged on the inner side of the bottom of the negative pressure chamber 25, and a sensor mounting position 523 and a protective cover 54 arranged outside the sensor mounting position 523 are provided on the adapter circuit board 52. The second temperature sensor 24 is installed at the sensor mounting position 523, and one end of the protective cover 54 is abutted against the bottom of the negative pressure chamber 25. The opening at one end of the protective cover 54 is arranged corresponding to the detection hole 11112; the light-transmitting sheet 11111 can be a silicon sheet, and the size of the light-transmitting sheet 11111 is adapted to the size of the detection hole 11112. An installation groove is formed at one end of the detection hole 11112, and the light-transmitting sheet 11111 is glued to the installation groove.

[0085] In some embodiments, an air source component 60 electrically connected to the control component 50 is provided in the shell 11, and the air source component 60 provides a negative pressure source for the negative pressure chamber 25; the electrode 22 is arranged close to the negative pressure chamber 25, or, in other embodiments, the electrode 22 is at least partially arranged on the side wall of the negative pressure chamber 25, and a negative pressure channel 12 connected to the negative pressure chamber 25 is also provided in the shell 11, one end of the negative pressure channel 12 is connected to the negative pressure chamber 25, and the other end is connected to the air source component 60.

[0086] In some embodiments, the air source assembly 60 includes an air pump 61, an air valve 62, and a pressure sensor 63 connected in sequence, and the pressure sensor 63 can be connected to the negative pressure channel 12 through a hose. The air valve 62 can be a two-position three-way air exchange valve 62, and the air valve 62 has a first valve port 621, a second valve port 622, and a third valve port 623, wherein the first valve port 621 is connected to the pressure sensor 63, the second valve port 622 is connected to the air pump 61, and the third valve port 623 is a pressure relief port. The air extraction process of the radio frequency beauty instrument 10 is: the air valve 62 is adjusted to make the first valve port 621 and the second valve port 622 connected. Under the action of the air pump 61, the gas in the negative pressure chamber 25 is sucked into the air pump 61 through the negative pressure channel 12, the pressure sensor 63, the first valve port 621, and the second valve port 622 in sequence, and the gas is continuously exhausted through the air outlet on the air pump 61, thereby releasing the gas in the negative pressure chamber 25. The body is continuously sucked out to form a suction negative pressure; adsorbing the skin in the negative pressure chamber 25 for a long time can easily make the user feel uncomfortable, and may even damage the skin in severe cases. Therefore, when using the skin, it is necessary to suck the skin into the negative pressure chamber 25 and then release it, then suck it in again, and then release it again, and repeat this cycle. Alternatively, after the work is completed, the negative pressure needs to be released to remove the radio frequency beauty instrument 10. The negative pressure relief process is: adjust the air valve 62 to make the third valve port 623 and the first valve port 621 connected, and the external gas enters the air valve 62 from the third valve port 623, and then enters the negative pressure chamber 25 through the first valve port 621, the pressure sensor 63, and the negative pressure channel 12 in turn. After the negative pressure chamber 25 is filled with gas, the negative pressure is released.

[0087] In some embodiments, the head shell 21 includes a cylindrical shell 2140 with two ends opened, a partition plate 2142 disposed on the inner side of the cylindrical shell 2140 and dividing the inner cavity of the cylindrical shell 2140 into a negative pressure cavity 25 and an installation cavity 21401, and the partition plate 2142 and the cylindrical shell 2140 can be integrally formed or separately injection molded. The electrode 22 is electrically connected to the adapter circuit board 52, and the adapter circuit board 52 is installed in the installation cavity 21401. The head shell 21 is detachably electrically connected to the main body shell 40. When the beauty head 20 is installed on the main body 4, the electrode 22 is electrically connected to the control component 50 in the main body 4 through the adapter circuit board 52, so that the working mode of the electrode 22 can be controlled.

[0088] In some embodiments, a breathable pad installation groove 21421 is provided on the partition plate 2142, and the breathable pad installation groove 21421 penetrates the partition plate 2142 from the bottom of the negative pressure chamber 25, and the negative pressure channel 12 includes a breathable pad installation groove 21421; the breathable pad installation groove 21421 is installed with a breathable pad 26 and / or a breathable waterproof membrane. The breathable pad 26 can be made of sponge material. On the one hand, the breathable pad 26 can ensure that the negative pressure chamber 25 is not completely blocked, ensuring the normal operation of the air extraction and pressure relief work, and on the other hand, it can form a protective isolation for the negative pressure channel 12, playing a role of dustproof isolation. The breathable waterproof membrane has water-proof and breathable properties, thereby preventing moisture from entering the air source component to avoid contamination.

[0089] In some embodiments, see Figure 1 , Figure 6 The head shell 21 is also provided with two ventilation grooves 218, both of which are provided on the bottom wall of the negative pressure chamber 25, and both of which are connected to the ventilation pad installation groove 21421 to avoid the phenomenon that the skin blocks the ventilation pad installation groove 21421.

[0090] In some embodiments, see Figure 6 , Figure 7 The cross-sections of the two ends of the cartridge shell 2140 may be different. Specifically, the cartridge shell 2140 has a small end 21402 facing the skin and a large end 21403 opposite to the small end 21402. The large end 21403 is used for docking and installation with the main body 4, so that the cross-section of the end of the cartridge shell 2140 close to the skin is smaller, which can make the contact surface between the radio frequency beauty device 10 and the skin more concentrated to increase the fit with the skin.

[0091] In some embodiments, a convex cylinder 219 is provided at the bottom of the partition plate 2142, one end of the convex cylinder 219 is connected to the partition plate 2142, and the other end is in a freely suspended state. A breathable pad mounting groove 21421 is formed at the end of the convex cylinder 219 close to the partition plate. A stepped through hole is provided inside the convex cylinder 219. When the breathable pad 26 is installed in the breathable pad mounting groove 21421, it abuts against the stepped surface of the stepped through hole. The inner cavity of the end of the convex cylinder 219 close to the main body 4 is a part of the negative pressure channel 12, that is, the convex cylinder 219 is connected to the air source assembly 60 inside the main body 4, so that negative pressure can be formed in the negative pressure chamber 25.

[0092] In some embodiments, the head shell 21 further includes a bottom plate 211 disposed at the bottom of the cylinder shell 2140, and a hole for avoiding the convex cylinder 219 is provided on the bottom plate 211. The bottom plate 211 can cover the port of the cylinder shell 2140 to protect the adapter circuit board 52 and the like disposed in the cylinder shell 2140. Of course, the cylinder shell 2140 is also provided with a pinhole (not shown in the figure) for avoiding the pin needle 53, so that the pin needle 53 can pass through the bottom plate 211 and be electrically connected to the electrode 22.

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radio frequency beauty instrument, characterized in that: It comprises a housing, a first temperature sensor, a second temperature sensor and an electrode, wherein the first temperature sensor, the second temperature sensor and the electrode are all arranged in the housing, the first temperature sensor is arranged corresponding to the electrode to detect the temperature of the electrode; the second temperature sensor is used to detect the temperature of human skin; The radio frequency beauty instrument also includes a control component, and the first temperature sensor and the second temperature sensor are both electrically connected to the control component. The control component is used to control the electrode according to the temperature values ​​detected by the first temperature sensor and the second temperature sensor.

2. The radio frequency beauty instrument according to claim 1, characterized in that: The first temperature sensor is connected to the electrode, and / or, The first temperature sensor is arranged inside or on the inner side of the electrode, and / or, The second temperature sensor is disposed in the electrode, and / or, The first temperature sensor is a contact temperature sensor, and / or, The second temperature sensor is a non-contact temperature sensor.

3. The radio frequency beauty instrument according to claim 1, characterized in that: The housing has a fitting surface facing human skin during operation, the electrode is arranged on the fitting surface, and the second temperature sensor is arranged in the housing; The fitting surface is provided with a detection window corresponding to the second temperature sensor, so that the second temperature sensor is used to detect the skin temperature of the human body through the detection window.

4. The radio frequency beauty instrument according to claim 1, characterized in that: The housing has a fitting surface facing the human skin during operation, the electrode is arranged on the fitting surface, a negative pressure cavity is formed on the fitting surface, the electrode is arranged close to the negative pressure cavity, or the electrode is at least partially arranged on the side wall of the negative pressure cavity; The second temperature sensor is disposed at the bottom of the negative pressure chamber to detect the temperature of the human skin sucked into the negative pressure chamber; or, The second temperature sensor is disposed on a side wall of the negative pressure chamber to detect the temperature of the human skin sucked into the negative pressure chamber.

5. The radio frequency beauty instrument according to claim 1, characterized in that: A negative pressure chamber is formed on the shell; The electrode comprises two electrode sheets with opposite polarities and arranged opposite to each other. Both of the electrode sheets are installed on the side walls of the negative pressure chamber. The first temperature sensor is installed on at least one of the electrode sheets.

6. The radio frequency beauty instrument according to claim 5, characterized in that: The second temperature sensor is installed on a side of one of the electrode sheets facing away from the other electrode sheet, and a through hole for detection by the second temperature sensor is correspondingly arranged on the electrode sheet.

7. The radio frequency beauty instrument according to claim 1, characterized in that: The first temperature sensor is an NTC temperature sensor, and / or, The second temperature sensor is an infrared temperature sensor.

8. The radio frequency beauty instrument according to claim 1, characterized in that: The control component includes a comparator, and the comparator is used to be connected to the first temperature sensor and the second temperature sensor respectively. The control component is used to control the electrode according to the comparison result of the comparator.

9. The radio frequency beauty instrument according to claim 4, characterized in that: The bottom of the negative pressure chamber is provided with a detection window, and the second temperature sensor is installed on the inner side of the bottom of the negative pressure chamber to detect the skin temperature of the human body through the detection window.

10. The radio frequency beauty instrument according to claim 9, characterized in that: The detection window includes a detection hole arranged at the bottom of the negative pressure chamber and a light-transmitting sheet sealed and connected to the detection hole, wherein the light-transmitting sheet corresponds to the second temperature sensor.

11. The radio frequency beauty instrument according to claim 10, characterized in that: The radio frequency beauty instrument further comprises a transfer circuit board arranged on the inner side of the bottom of the negative pressure chamber, the transfer circuit board is provided with a sensor mounting position and a protective cover arranged outside the sensor mounting position, the second temperature sensor is installed at the sensor mounting position, one end of the protective cover abuts against the bottom of the negative pressure chamber, and an opening at one end of the protective cover is arranged corresponding to the detection hole; and / or, The light-transmitting sheet is a silicon sheet; and / or, A mounting recess is formed at one end of the detection hole, and the light-transmitting sheet is glued to the mounting recess.

12. The radio frequency beauty instrument according to claim 1, characterized in that: The housing is provided with an air source component electrically connected to the control component; A negative pressure cavity is also formed on the shell, and the electrode is arranged close to the negative pressure cavity, or the electrode is at least partially arranged on the side wall of the negative pressure cavity. A negative pressure channel connected to the negative pressure cavity is also provided in the shell, and one end of the negative pressure channel is connected to the negative pressure cavity, and the other end is connected to the air source component.

13. The radio frequency beauty instrument according to claim 12, characterized in that: The air source assembly includes an air pump, an air valve and a pressure sensor which are connected in sequence, and the pressure sensor is communicated with the negative pressure channel.

14. The radio frequency beauty instrument according to claim 12, characterized in that: The radio frequency beauty instrument includes a beauty head and a main body part detachably connected to the beauty head, the beauty head includes a head shell, the main body part includes a main body shell, the head shell is detachably connected to the main body shell, the shell includes the head shell and the main body shell, the first temperature sensor, the second temperature sensor and the electrode are arranged on the head shell, and a negative pressure chamber is formed on the head shell.

15. The radio frequency beauty instrument according to claim 14, characterized in that: The radio frequency beauty instrument also includes an adapter circuit board. The head shell includes a cylindrical shell with openings at both ends, a partition plate arranged on the inner side of the cylindrical shell and dividing the inner cavity of the cylindrical shell into a negative pressure cavity and an installation cavity. The electrode is connected to the adapter circuit board, and the adapter circuit board of the radio frequency beauty instrument is installed in the installation cavity.

16. The radio frequency beauty instrument according to claim 15, characterized in that: The partition plate is provided with a breathable pad installation groove, and the breathable pad installation groove passes through the partition plate from the bottom of the negative pressure cavity. The negative pressure channel includes the breathable pad installation groove; the breathable pad installation groove is installed with a breathable pad and / or a breathable and waterproof membrane.

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