Shaving knife

Abstract

The invention relates to a razor. The razor structurally comprises a main body and a razor head, a control circuit board and a power supply module electrically connected with the control circuit board are mounted in the razor; the tool bit comprises a tool bit shell, a plurality of blade assemblies and a light source assembly. The tool bit shell is used for installing a plurality of blade assemblies and light source assemblies. The multiple sets of blade assemblies are exposed out of the end face of the tool bit shell and used for cutting hair in a shaving area. The light source assembly comprises a light source. Light waves emitted by the light source comprise near-infrared light, or a light filtering element is arranged, and light waves obtained after light emitted by the light source is filtered by the light filtering element comprise near-infrared light; the near-infrared light irradiates the shaving area to carry out near-infrared treatment on the skin and the hair follicles; when the shaving cutter works, the blade assembly reciprocates to cut hair in a shaving area; light emitted by the light source is emitted from the end face of the shaver head shell and irradiates a shaving area, and near-infrared treatment is carried out on skin and hair follicles. Therefore, the dual effects of shaving and near-infrared treatment are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of personal care appliances, and in particular to a razor. Background Art

[0002] Existing razors usually only have a single shaving function, cutting hair through the reciprocating motion of the blade, but are unable to care for the skin after shaving. Some shaving equipment has a UV disinfection function, such as China Patent Publication No. CN202420779215.7, which uses a germicidal lamp on the upper cover to disinfect the blade head, focusing on equipment hygiene maintenance, but does not achieve phototherapy of the skin in the shaved area, and cannot solve problems such as skin irritation (such as redness, itching) during shaving; if phototherapy is performed, it is necessary to use additional phototherapy equipment, which results in more equipment used for shaving and skin care, and complicated operation. On the other hand, the blade head of the existing razor has low freedom of movement and insufficient shaving closeness. Summary of the Invention

[0003] The technical problem to be solved by the present application is to provide a razor that solves the problem that existing razors have a single function and cannot have both shaving and light treatment functions.

[0004] To solve the above technical problems, this application adopts the following technical solutions: A razor, comprising a main body and a cutter head; a control circuit board and a power module electrically connected to the control circuit board are installed inside the razor; the cutter head comprises a cutter head housing, several groups of blade assemblies and a light source assembly; the cutter head housing is used to mount the several groups of blade assemblies and the light source assembly; the several groups of blade assemblies are exposed at the end surface of the cutter head housing and are used to cut hair in a shaved area; the light source assembly comprises a light source; the light wave emitted by the light source contains near-infrared light, or, a filter element is provided, and the light wave emitted by the light source contains near-infrared light after being filtered by the filter element; the near-infrared light irradiates the shaved area to perform near-infrared treatment on the skin and hair follicles; when the razor is working, the blade assembly reciprocates to cut the hair in the shaved area; the light emitted by the light source is emitted from the end surface of the cutter head housing and irradiates the shaved area, performing near-infrared treatment on the skin and hair follicles, thereby achieving the dual effects of shaving and near-infrared treatment.

[0005] Preferably, the light source is a halogen lamp, a carbon filament lamp, or a tungsten filament lamp.

[0006] In some embodiments, the end face of the blade housing forms a light emitting panel, and a light outlet is provided on the light emitting panel; the light source assembly also includes a reflector; the light source is installed behind the light outlet; the reflector is installed outside the light source, and the light generated by the light source is reflected by the reflector and then emitted from the light outlet.

[0007] In some embodiments, the filter element is arranged on the light outlet, covering the light outlet; or, the filter element is arranged in the light path between the light source and the light outlet; or, the filter element is arranged on the outer surface or inner surface of the lamp tube of the light source; or, the filter element is arranged outside the light outlet.

[0008] The light emitted by the light source is filtered by the filter element to obtain near-infrared light waves.

[0009] In some embodiments, the several groups of blade assemblies are installed on the light output panel of the cutter head housing, which is convenient for shaving and light treatment of the shaving area outside the light output panel; the light source and the reflector are installed in the cavity inside the cutter head housing, and the two side edges of the reflector are clamped and fixed on the inner side of the edge of the light outlet; the light outlet is provided with a filter element and / or a light-transmitting plate, and the filter element and / or the light-transmitting plate seals the light source on the inner side of the reflector.

[0010] In some embodiments, a motor electrically connected to a control circuit board is installed in the main body and / or the cutter head; the output end of the motor is connected to the cutter head, for driving the cutter head to make the blade assembly reciprocate to cut hair; the motor is a vibration motor or an eccentric motor.

[0011] In some embodiments, the blade assembly is mounted on a vibration disk, and the vibration disk is mounted in a cavity inside a cutter head housing; a through hole is provided at the bottom of the cutter head housing; the main body includes a housing, and a through hole is provided at the top of the main body housing; the motor passes through the through hole at the top of the main body housing and the through hole at the bottom of the cutter head housing from the inside of the main body housing, and its output end extends into the interior of the cutter head and is connected to the vibration disk; the vibration of the motor drives the drive disk and the blade assembly mounted on the drive disk to vibrate; each set of blade assemblies includes a blade fixing seat, a blade and a blade net; the blade fixing seat, the blade and the blade net are adapted to each other and tightly assembled together; the blade fixing seat is connected to the vibration disk; the reciprocating motion of the vibration disk driven by the motor drives the blade assembly on the vibration disk to vibrate, so that the blade reciprocates to cut the hair that has penetrated into the mesh of the blade net.

[0012] In some embodiments, the light output panel of the blade housing is provided with a plurality of through slots, which are connected with the cavity inside the blade housing; the through slots are adapted to correspond to the blade assemblies, and each set of blade assemblies is installed in one of the through slots; the through slots are long strips; the light output port is long strips; the blade fixing seat, blade and blade net are tightly stacked into a long strip; the blade assembly is located in the through slots of the light output panel and is arranged parallel to the light output port; the light output port is located in the middle, and the blade assemblies are located on both sides of the light output port.

[0013] In some embodiments, the output end of the motor is connected to the bottom of the vibration plate; the blade assembly is installed on the top of the vibration plate and is connected together by plug-fitting between the short shaft and the shaft hole.

[0014] In some embodiments, a short shaft extending upward is provided at the bottom of the vibration plate; the blade fixing seat is a lever structure, with the middle being the axis, and the bottom extending from the axis to both sides to form support legs; the support legs are used to support the blade assembly and to limit the swinging motion; a slot is formed along the length of the top of the blade fixing seat, and the blade is clamped in the slot.

[0015] In some embodiments, the blade has an arc-shaped surface and forms a row of arc-shaped cutting edges along the length direction; the blade mesh cover is adapted to the blade, attached to the outside of the blade and clamped in the slot at the top of the blade fixing seat.

[0016] In some embodiments, the cutting head is rotatably connected to the body.

[0017] In some embodiments, the cutting head is swingably connected to the main body.

[0018] In some embodiments, the cutter head is connected to the main body via a ball-type connector, so that the cutter head has a predetermined degree of freedom of movement, so that the cutter head fits the skin better and adapts to the shaving needs of different parts of the body.

[0019] In some embodiments, the ball-head connector includes a spherical shell and a damping block; the spherical shell cooperates with the damping block to enable the cutter head to swing and rotate in multiple directions, thereby increasing the freedom of the cutter head group; the spherical shell and the damping block are installed in the top of the main body shell; the spherical shell is provided with several through holes and has a cavity inside; a through hole is provided on the top of the main body shell, and the spherical shell is installed in the through hole on the top of the main body shell, and the through hole on the top of the spherical shell is connected to the through hole on the top of the main body shell; a through hole is provided at the bottom of the cutter head shell; the motor is installed in the cavity inside the spherical shell and moves together with the spherical shell, and the top output end of the motor passes through the through hole on the top of the spherical shell, the through hole on the top of the main body shell, and the through hole at the bottom of the cutter head shell and is connected to the vibration disk inside the cutter head; the blade assembly is installed on the vibration disk; the wire passes through a through hole provided on the spherical shell to electrically connect the motor to the control circuit board.

[0020] In some embodiments, the damping block is provided with a convex shaft, which is inserted into a through hole provided in the spherical shell to form a rotational fit. The spherical shell is supported by the damping block to rotate and swing with the convex shaft as the rotation center, thereby providing spherical rotation and swinging motion for the motor.

[0021] In some embodiments, a boss is provided on the inner wall of the main shell, and an assembly hole is provided on the damping block; the boss is inserted into the assembly hole and tightly fits to fix the damping block in the cavity in the main shell.

[0022] The beneficial effects of this application are: The shaver of the present application has both mechanical shaving and near-infrared light treatment functions.

[0023] Furthermore, the razor head of the present application can rotate and swing relative to the main body, and can adaptively fit the skin, and is suitable for hair treatment and post-shaving skin care in multiple parts of the body such as the face, armpits, and limbs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the razor according to an embodiment of the present application and shows a schematic diagram of the movement of the razor head.

[0025] Figure 2 It is a schematic structural diagram of a razor according to an embodiment of the present application.

[0026] Figure 3-4 It is a cross-sectional view of the razor according to an embodiment of the present application.

[0027] Figure 5 This is a partial structural diagram of a razor according to an embodiment of the present application.

[0028] Figure 6 It is an exploded view of the razor according to an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following describes exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Instead, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0030] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0031] Although the terms first, second, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the elements, components, regions, layers or sections discussed below can be referred to as second elements, components, regions, layers or sections without departing from the teachings of the example embodiments.

[0032] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," etc. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0033] Please refer to Figure 1-6 As shown, the razor 100 of the embodiment of the present application comprises a main body 1 and a cutter head 2 as a whole, and the two are connected in a multi-directional or non-directional manner relative to the main body 1 through a ball-type connector 3. For example, the cutter head 2 can be rotated or swung in an indefinite direction within an angle range of 350° through the ball-type connector. The cutter head 2 comprises a cutter head shell 21 and several groups of blade assemblies 22, a light source assembly 23 and a vibration disk 24 installed in the cavity of the shell. The light source assembly 23 comprises a light source, and the light generated by the light source is in a predetermined wavelength band having a therapeutic effect on the skin and is preferably near-infrared, or the light wave obtained after the outgoing light of the light source is filtered by a filter element has a predetermined wavelength band for skin treatment, preferably near-infrared. The main functions and features of the razor 100 of the present application are: 1) Dual-function integration: The blade assembly 22 mechanically shaves hair, while the light source assembly 23 simultaneously emits light of a predetermined wavelength (e.g., near-infrared light) to illuminate the shaved area, achieving the dual functions of "shaving + light therapy" in one device. Alternatively, one function can be activated or deactivated. 2) Flexible blade design: The blade head 2 is connected to the main body 1 via a ball-type connector 3, enabling multi-directional (non-directional) movement, rotation, and swinging, ensuring that the blade head 2 can conform to the skin curves of different parts of the body; 3) Precise optical path design: The light source assembly 23 is reflected by the reflector 232 in the same light output direction, and the filter element 233 filters the wavelength to ensure that the light of the predetermined wavelength (preferably near infrared) acts efficiently on the shaved area.

[0034] The main body 1 includes a housing 11, within which a control circuit board 12 and a power module 13 are mounted. The housing 11 primarily protects the internal components, provides a gripping structure, and supports the movement of the cutter head 2. A through-hole 16 is provided at the top of the main body 1, connecting to the internal cavity and used to mount the ball-jointed connector 3 and motor 15.

[0035] The main housing 11 can be a hollow, elongated structure (but not limited to an elongated shape). The top inner wall is provided with a boss 111 (for securing the damping block 32). The circular through-hole 16 is defined at the top. The main housing 11 can be comprised of a left outer shell 11a and a right outer shell 11b that snap together. The ball-jointed connector 3 and motor 15 are located within the main housing 11, near the top. The control circuit board 12 and power module 13 are located within the cavity and below the ball-jointed connector 3. The light source assembly 23, including the light source 231, the power module 13, the key module 14, and the motor 15 are electrically connected to the control circuit board 12.

[0036] The control circuit board 12 can be a PCBA board, integrating functional circuits such as the controller, motor drive circuit, and light source control circuit. Electrical wires connect the power module 13, key module 14, motor 15, and light source assembly 23 to the control circuit board 12. The control circuit board 12 receives commands from the key module to control the start / stop and speed of the motor 15, the on / off state, and the brightness of the light source 231, among other functions.

[0037] The power module 13 includes a battery 130 and / or an AC / DC converter module (not shown), and is also equipped with a charging port (e.g., Micro-USB) 131. The charging port 131 is provided on the control circuit board 12 and its distal end is exposed outside the housing through a through-hole in the housing 11, facilitating connection to AC power or other power sources for powering the shaver 100 or charging the battery 130. Of course, the battery can be a primary battery or a rechargeable battery.

[0038] The button module 14 is mounted on or electrically connected to the control circuit board 12. Its outer surface is exposed through a through-hole in the housing 11, allowing for easy user operation. The button module 14 includes a power button and may also include a mode button. The button module is embedded in the outer surface of the main housing 11. The power button starts and stops the device, while the mode button can be used to switch between modes such as "Shaving," "Shaving + Light Therapy," and "Light Therapy."

[0039] The ball-end connector 3, which enables the movable connection between the cutter head 2 and the main body 1, comprises a spherical shell 31 and a damping block 32. The spherical shell 31 is a hollow shell, perhaps hemispherical, or quasi-spherical. The size and shape of the spherical surface of the spherical shell 31 are adapted to the required amplitude and range of movement (rocking and rotation) of the cutter head. The spherical shell 31 is hollow and has several through-holes, including a top through-hole 311 for the top of the motor 15 and its output port 151, a side through-hole 312 for power lines, and a bottom through-hole (or protrusion) 313 for a rotational connection with the damping block 32. The spherical shell 31 is mounted within the top through-hole 16 of the main housing 11, with its bottom flexibly engaged with the damping block 32. The internal cavity of the spherical shell 31 accommodates and supports the motor 15, enabling rotation and rocking through interaction with the damping block 32.

[0040] The damping block 32 is block-shaped, with a protruding shaft (or shaft hole) 321 on its top that flexibly connects (rotates and swings) to a shaft hole (or provided protruding shaft) 313 on the bottom of the spherical shell 31. A mounting hole 322 is provided on the bottom. Several mounting holes 322 (e.g., a pair of mounting holes 322) are provided on the side of the damping block 32. These holes 322 are inserted and tightly fitted with the protruding studs 111 (a pair of protruding studs 111) on the inner wall of the main shell 11, thereby securing the damping block 32 within the internal cavity of the main shell, near the top.

[0041] The damping block 32 provides damping force for the spherical shell 31, allowing the cutter head 2 to stay stable (rotate and swing) at any angle. It can also absorb the vibration of the motor in the spherical shell 31, reducing the impact of the motor vibration on the control circuit board 12 and the power module 13.

[0042] The motor 15 is preferably an eccentric motor or a vibration motor. Its output end 151 is connected to the cutter head 2, specifically, to the vibrating disk 24 of the cutter head 2. The blade assembly 22 is mounted on the vibrating disk 24. The output end 151 of the motor 15 is connected to the vibrating disk 24, driving the vibrating disk 24 to reciprocate, thereby driving the blade assembly 22 and the light source assembly 23 to reciprocate. The motor 15 is mounted within the interior cavity of the spherical shell 31 and is electrically connected to the control circuit board 12. The output end 151 extends through the top through-hole 311 of the spherical shell 31 and the bottom through-hole 211 of the cutter head housing 21 to connect to the vibrating disk 24. The motor 15 converts electrical energy into mechanical vibration, driving the reciprocating motion of the vibrating disk 24 and the blade assembly 22. The reciprocating motion of the vibrating disk 24 and the blade assembly 22 drives the synchronous motion of the entire cutter head.

[0043] The shaving head 2 is the core of both shaving and (near-infrared) light therapy. It comprises a shaving head housing 21, comprised of a top cover 21a and a base 21b that snap together, forming a cavity within. A light-emitting panel 212 is located at the top, positioned adjacent to the skin in the shaving area. Three elongated (but not limited to elongated) slots 213 are defined on the light-emitting panel 212, connecting to the cavity. The center slot serves as a light outlet 213a, flanked by blade assembly mounting slots 213b. The arrangement of slots 213 is not limited to this. The bottom of the base 21b defines a through-hole 211 for the top and output port 151 of the motor 15 to pass through. The shaving head housing 21 mates with the output port 151 of the motor 15 via the bottom through-hole 211. The internal cavity houses the vibrating plate 24, the blade assembly 22, and the light source assembly 23. The blade housing 21 is used to mount the blade assembly 22 and the light source assembly 23. The through slot 213 of the light outlet panel 212 guides hair into the blade assembly 22, while the light outlet 213a directs light to the skin. In a non-limiting example, the blade assemblies 22 are provided in four groups (not limited to four groups), symmetrically distributed on both sides of the light outlet 213a (not limited to this arrangement). Each group of blade assemblies 22 includes a blade holder 221, which can be designed as a lever structure with a central axis (axial hole) 221a, a support leg 221b at the bottom, and a slot 221c formed along the top length. The blades 222 can be made of stainless steel, have a curved surface, and are provided with a row of curved cutting edges 222a along their length. The blade net 223 can be made of metal with a mesh etched on the surface, shaped to match the blades 222. The blade 222 snaps into the slot 221c of the blade holder 221. The blade net 223 is attached to the outside of the blade 222 and locked into the slot 221c. The blade holder 221 engages with the short shaft 241 at the top of the vibrating plate 24 through the bottom shaft hole 221a. Therefore, when the motor 15 drives the vibrating plate 24, the blade holder 221 reciprocates, and the blade 222 reciprocates synchronously. The reciprocating motion of the blade 222 cuts hair that enters the blade net 223, which prevents direct contact between the blade and the skin, reducing irritation.

[0044] The vibration disk 24 can be a flat plate, the bottom of which is relatively fixedly connected to the output end 151 of the motor 15 (it can be through the plug-in fit of the protruding shaft and the shaft hole), and two (or one or more) platforms can be set on the top to form the vibration disk 24 into a stepped shape. The platforms are spaced apart from each other, and the upper part of the middle gap corresponds to the light source assembly 23 installed behind the light outlet. The platforms are respectively provided with upwardly extending short shafts 241 (for example, two short shafts 241 are symmetrically provided to respectively cooperate with the two blade fixing seats 221). The vibration disk 24 is installed in the internal cavity of the cutter head housing 21, with the bottom connected to the output end 151 of the motor 15, and the top short shaft 241 is connected to the axis 221a of the blade fixing seat 221. The vibration disk 24 transmits the vibration of the motor 15 to the blade assembly 22, driving the blade 222 to reciprocate.

[0045] The light source assembly 23 includes a light source 231, a reflector 232, and a filter element 233 or a light-transmitting plate 234. The light source 231 is mounted behind the light outlet 213a. The reflector 232 is fixed to the outside of the light source 231 and may be curved to wrap around the outside of the light source 231. The filter element 233 or the light-transmitting plate 234 covers the light outlet and seals the light source 231 inside the reflector 232. The light source 231 may be an incandescent lamp, preferably a halogen lamp, a carbon filament lamp, a tungsten filament lamp, or other light source. The reflector 232 and its inner surface have reflective properties, reflecting light emitted by the light source toward the light outlet 213a. The optical filter element 233 may be a filter or a filter film, preferably with filtering properties covering the near-infrared (e.g., 750-2500 nm). The light-transmitting plate 234 is made of a transparent material, such as a transparent plastic sheet or transparent crystal.

[0046] In some embodiments, the filter element 233 can be positioned above and covering the light outlet 213a, between the light source 231 and the light outlet 213a, on the inner or outer surface of the light source 231 tube, or on the outer surface or exterior of the light-transmitting plate 234. Light waves emitted by the light source 231 are filtered by the filter element 233 to produce near-infrared light, which is then applied to the skin in the shaved area for near-infrared treatment. Light from the light source 231 is reflected by the reflector 232 and filtered by the filter element 233. Light of a predetermined wavelength (e.g., near-infrared light) is then emitted from the light outlet 213a and illuminates the shaved area.

[0047] The connection between the main body 1 and the cutting head 2 of the razor 100 of the present application is as follows: the cutting head 2 is connected to the main body 1 via a ball-type connector 3. The spherical shell 31 is installed in the through hole 16 at the top of the main body shell 11. The damping block 32 is fixed to the inner wall of the main body shell 11 and supports the spherical shell 31. The motor 15 is installed in the spherical shell 31, and its output end 151 is connected to the vibrating disk 24 of the cutting head 2. The motor 15 is located in the neck of the razor, with its upper portion located in the cutting head 2 (bottom) and its lower portion located in the main body 1 (top).

[0048] Inside the cutter head 2, the vibration plate 24 connects the motor 15 and the blade assembly 22. The light source assembly 23 is fixed within the cutter head housing 21, specifically mounted behind the light output panel 212, corresponding to the light output port 213a. For example, the top surface of the cutter head housing 21 (which can also be other end surfaces such as the side) serves as the light output panel 212.

[0049] The control circuit board 12 is connected to the power module 13 (power supply 130 and charging port 131), the button module 14, the motor 15 and the light source 231 through wires or circuits. The wire 314 passes through the through hole 312 of the spherical shell 31 to be connected to the motor 15, and can also enter the cutter head through the through hole 16 at the top of the main shell 11 and the through hole 211 at the bottom of the cutter head shell 21 to be electrically connected to the light source 231.

[0050] The working principle of the shaver 100 of the present application is as follows: 1) Shaving function: The power button of the operation button 14 controls the circuit board 12 to start the motor 15. The output terminal 151 of the motor 15 drives the vibration plate 24 to vibrate at a high frequency. The vibration plate 24 drives the blade assembly 22 to reciprocate synchronously via the top short shaft 241. The curved blade edge 222a of the blade 222 cuts the hair entering the blade net 223.

[0051] 2) Light therapy, namely infrared light therapy function: Switching the mode button on button 14 to "Shaving + Light Therapy" mode activates the control circuit board 12 to activate the light source 231. Light source 231 emits light, which is reflected by reflector 232 and emitted from light outlet 213a. The light emitted by the light source or filtered by filter element 233 is converted into light of a predetermined wavelength (e.g., near-infrared light). The predetermined wavelength near-infrared light passes through light outlet 213a and illuminates the shaved area, providing anti-inflammatory and soothing effects on the skin and hair follicles. During shaving, the near-infrared light from the lamp creates an internal heating effect on the shaved area, promoting the shrinkage of hair follicles in the shaved area and accelerating the aging of hair follicles, thereby extending the hair growth cycle. Simultaneously, the near-infrared light accelerates blood circulation and metabolism, achieving anti-inflammatory and antibacterial effects, thereby eliminating discomfort such as redness, swelling, and itching after shaving. Existing technology has confirmed the therapeutic efficacy of near-infrared light on the skin and the hair follicles on its surface. In this application, no clinical experiments are repeated, and the near-infrared light technology is directly applied to the shaver to treat the skin in the shaved area.

[0052] The operating principle of the razor head 2 of the razor 100 of the present application is as follows: During shaving, the blade head 2 follows the curvature of the skin, and the spherical shell 31 rotates or oscillates about the convex axis 321 of the damping block 32. The design of the spherical shell 31 of the ball-end connector 3 allows the blade head 2 to rotate or oscillate in any direction within a 350° angle range. The damping block 32 can be made of a material with a high damping force, such as silicone, to provide a damping force that keeps the blade head 2 in contact with the skin and stabilize it. The spherical shell 31 of the ball-end connector 3 and the damping block 32 work together to allow the blade head 2 to oscillate and rotate, increasing its freedom of movement, allowing it to better adapt to the shape of the shaved area and conform more closely to the skin.

[0053] The shaver 100 of the present application has the following features: 1) When shaving, the near-infrared rays emitted by the light source (or the near-infrared rays obtained after filtering) can be used to irradiate the shaved area to produce an internal heating effect, which accelerates the aging of the hair follicles. That is, shaving the hair outside the skin also causes the hair follicles under the skin to shrink, thereby achieving the purpose of extending the hair production cycle; at the same time, the near-infrared light effect accelerates blood circulation and increases metabolism, thereby achieving the effect of anti-inflammatory and sterilization, eliminating the discomfort such as redness, swelling and itching after shaving; 2) The ball-head design of the connector increases the freedom of the cutter head, the swingable design makes it fit the skin better, and the rotatable design makes it more adaptable to the shaving needs of different parts of the body.

[0054] It is understood that in other embodiments, the shaver can use a light source 231 that emits light in other wavelength bands, select a suitable filter element, and obtain output light of a predetermined wavelength band to act on the shaved area. An example of the predetermined wavelength band is: different photon bands of the predetermined wavelength band light have different effective effects on the skin, for example: 480nm photons have a sterilization function, 530nm photons can have a skin rejuvenation effect and lighten spots, 600nm photons have a blood vessel softening effect, and 640nm photons have a hair removal effect. In some embodiments, the light generated by the light source 231 or the light wave after filtering by the filter element can be: The 430-1200nm band can be used to treat inflammatory acne; The 480-1200nm band can be used to treat acne and vascular lesions; The 530-1200nm band can be used to treat vascular (superficial small blood vessels) and pigmented lesions; The 560-1200nm band can be used to remove wrinkles, treat pigmented and vascular lesions (deep and thick blood vessels); The 640-1200nm band can be used for hair removal, skin rejuvenation, and deep redness removal; 690-1200nm band, can be used for hair removal, deep redness removal, etc. The light source and the filtering characteristics of the filter element can be configured according to specific application needs.

[0055] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A razor comprising a main body and a razor head; characterized in that: A control circuit board and a power supply module electrically connected to the control circuit board are installed inside the shaver; The cutter head comprises a cutter head housing, a plurality of blade assemblies and a light source assembly; the cutter head housing is used to mount the plurality of blade assemblies and the light source assembly; The plurality of blade assemblies are exposed on the end surface of the cutter head housing and are used for cutting hair in the shaving area; The light source assembly includes a light source; the light wave emitted by the light source includes near-infrared light, or a filter element is provided, and the light wave emitted by the light source after being filtered by the filter element includes near-infrared light; the near-infrared light irradiates the shaved area to perform near-infrared treatment on the skin and hair follicles; When the shaver is working, the blade assembly reciprocates to cut the hair in the shaved area; the light emitted by the light source is emitted from the end face of the blade head housing and illuminates the shaved area, performing near-infrared treatment on the skin and hair follicles; thereby achieving the dual effects of shaving and near-infrared treatment.

2. The shaver according to claim 1, wherein: The light source is a halogen lamp, a carbon filament lamp or a tungsten filament lamp.

3. The shaver according to claim 1, wherein: The end surface of the cutter head housing forms a light output panel, and a light output port is provided on the light output panel; The light source assembly further includes a reflector; the light source is mounted behind the light outlet; the reflector is mounted outside the light source, and the light generated by the light source is reflected by the reflector and then emitted from the light outlet; The filter element is arranged on the light outlet, covering the light outlet; or, the filter element is arranged in the light path between the light source and the light outlet; or, the filter element is arranged on the outer surface or inner surface of the lamp tube of the light source; or, the filter element is arranged outside the light outlet; The light emitted by the light source is filtered by the filter element to obtain near-infrared light waves.

4. The shaver according to claim 3, wherein: The plurality of blade assemblies are mounted on the light-emitting panel of the cutter head housing, so as to facilitate shaving and light treatment of the shaving area outside the light-emitting panel; The light source and the reflector are installed in the cavity inside the cutter head housing, and the two side edges of the reflector are clamped and fixed to the inner side of the edge of the light outlet; The light outlet is provided with a filter element and / or a light-transmitting plate, and the filter element and / or the light-transmitting plate seal the light source inside the reflector.

5. The shaver according to claim 3, wherein: A motor electrically connected to a control circuit board is installed in the main body and / or the cutter head; The output end of the motor is connected to the cutter head, and is used to drive the cutter head to make the blade assembly move back and forth to cut hair; The motor is a vibration motor or an eccentric motor.

6. The shaver according to claim 5, characterized in that: The blade assembly is mounted on a vibration plate, and the vibration plate is mounted in a cavity in a cutter head housing; a through hole is provided at the bottom of the cutter head housing; The main body includes a shell, and a through hole is provided on the top of the main body shell; The motor passes through the through hole at the top of the main body shell and the through hole at the bottom of the cutter head shell from the inside of the main body shell, and its output end extends into the interior of the cutter head and is connected to the vibration disk; the vibration of the motor drives the drive disk and the blade assembly mounted on the drive disk to vibrate; Each blade assembly includes a blade fixing seat, a blade and a blade net; the blade fixing seat, the blade and the blade net are adapted to each other and tightly assembled together; The blade fixing seat is connected to the vibration plate; The motor drives the vibration plate to move back and forth, driving the blade assembly on the vibration plate to vibrate so that the blade moves back and forth to cut the hair that penetrates into the mesh of the blade net.

7. The shaver according to claim 6, wherein: The light output panel of the cutter head housing is provided with a plurality of through slots, which are communicated with the cavity inside the cutter head housing; the through slots are adapted to correspond to the blade assemblies, and each set of blade assemblies is installed in one of the through slots; The through slot is in the shape of an elongated strip; the light outlet is in the shape of an elongated strip; The blade fixing seat, blade and blade net are tightly stacked to form a long strip; The blade assembly is located in the through slot of the light outlet panel and is arranged parallel to the light outlet; the light outlet is located in the middle, and the blade assemblies are located on both sides of the light outlet; The output end of the motor is connected to the bottom of the vibration plate; the blade assembly is installed on the top of the vibration plate and is connected together by plugging and fitting between a short shaft and an axis hole.

8. The shaver according to claim 7, wherein: A short shaft extending upward is provided at the bottom of the vibration plate; The blade fixing seat is a lever structure with an axis in the middle and legs extending from the axis to both sides at the bottom; the legs are used to support the blade assembly and limit the swinging movement; a slot is formed along the length of the top of the blade fixing seat, and the blade is clamped in the slot; The blade has an arc-shaped surface and forms a row of arc-shaped cutting edges along the length direction; The blade net cover is adapted to the blade, is attached to the outside of the blade and is clamped in the clamping groove on the top of the blade fixing seat.

9. The shaver according to any one of claims 1 to 8, characterized in that: The cutter head is rotatably connected to the main body; The cutter head is swingably connected to the main body; The cutter head is connected to the main body via a ball-type connector, so that the cutter head has a predetermined degree of freedom of movement, so that the cutter head fits the skin better and adapts to the shaving needs of different parts of the body.

10. The shaver according to claim 9, characterized in that: The ball-head connector includes a spherical shell and a damping block. The spherical shell cooperates with the damping block to enable the cutter head to swing and rotate in multiple directions, thereby increasing the degree of freedom of the cutter head assembly. The spherical shell and the damping block are installed in the top of the main body shell; The spherical shell is provided with a plurality of through holes and has a cavity inside; A through hole is provided on the top of the main shell, the spherical shell is installed in the through hole on the top of the main shell, and the through hole on the top of the spherical shell is connected to the through hole on the top of the main shell; A through hole is provided at the bottom of the cutter head housing; The motor is installed in the cavity inside the spherical shell and moves together with the spherical shell. The output end of the motor passes through the through hole at the top of the spherical shell, the through hole at the top of the main shell, and the through hole at the bottom of the cutter head shell and is connected to the vibration disk inside the cutter head. The blade assembly is installed on the vibration disk. The electric wire passes through a through hole provided on the spherical shell to electrically connect the motor with the control circuit board.

11. The shaver according to claim 10, wherein: The damping block is provided with a convex shaft, which is inserted into a through hole provided in the spherical shell to form a rotational fit. The spherical shell is supported by the damping block to rotate and swing with the convex shaft as the rotation center, thereby providing spherical rotation and swinging motion for the motor.

12. The shaver according to claim 11, wherein: The inner wall of the main body shell is provided with a boss, and the damping block is provided with an assembly hole; the boss is inserted into the assembly hole and tightly fitted to fix the damping block in the cavity in the main body shell.

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