Handheld household laser hair removal instrument with built-in movable refrigeration sheet

Abstract

The invention relates to the technical field of laser depilation, in particular to a handheld household laser depilation instrument with a built-in movable refrigeration piece, which comprises a first shell and a second shell, the laser module, the control module and the heat dissipation module are fixedly mounted on the inner side of the second shell; a refrigeration sheet is slidably embedded in the outer side of the laser module; a button is slidably mounted on the first shell; a control switch is fixedly mounted on the control module; the locking structure is arranged on the first shell; comprising a first wedge block used for limiting the button; the unlocking structure comprises a second wedge block used for extruding the first wedge block; the pressure sensing structure is arranged on the first shell and is connected with the refrigeration sheet; the top plate is used for providing extrusion force for the second wedge block; the top plate is slidably embedded with the first shell; the unhairing instrument is used as household beauty equipment, and the safety and effectiveness of the unhairing instrument highly depend on the contact state between the skin and the refrigeration sheet; and a three-stage pressure response mechanism ensures that the equipment only works in an ideal contact state.

Description

Technical Field

[0001] The invention relates to the technical field of laser hair removal, in particular to a handheld household laser hair removal device with a built-in movable cooling plate. Background Art

[0002] Handheld laser hair removal devices work by transmitting laser light of a specific wavelength through the epidermis and into the dermis, where it is selectively absorbed by the melanin granules in the hair and follicles, creating a photothermal effect. Heat energy within the hair is then transferred to the surrounding area, completely destroying the hair follicles and their "hair roots," including stem cells, resulting in permanent hair removal. Since the normal tissue surrounding the follicles does not contain melanin granules, it does not absorb the laser light and is therefore minimally affected, generally resulting in no scarring. Compared to traditional desktop laser hair removal devices, handheld devices offer increased convenience and ease of everyday use.

[0003] A common handheld laser hair removal device consists of a laser module, a cooling plate, a control module, and a button. The user positions the light output window vertically and close to the skin, then presses a button to illuminate the area, moving the window one level with each press. The cooling plate, which is in direct contact with the skin to cool the illuminated area and reduce user discomfort, is typically fixed to the surface of the light output window. Pressing the button controls the laser module, illuminating the area covered by the cooling plate.

[0004] The laser module of a common handheld laser hair removal device will work when the button is pressed, without any safety or detection measures. That is, it can work when the cooling plate is not in contact with the skin or the contact is not firm, and when the cooling plate is in too tight contact with the skin. Although this can improve the convenience of the hair removal device, when the cooling plate is not in contact with the skin, it is easy to cause accidental contact during transportation or storage, resulting in dangerous accidents; when the light is emitted when the contact is not firm, light leakage will occur, which can easily reduce the hair removal effect of the hair removal device; when the light is emitted when the contact is too tight, although the hair removal effect can be ensured, excessive pressure is prone to occur, which may affect the cooling efficiency, causing obvious discomfort to the user. Summary of the Invention

[0005] The object of the present invention is to provide a handheld home laser hair removal device with a built-in movable cooling plate to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A handheld home laser hair removal device with a built-in movable cooling plate comprises a first shell and a second shell; the first shell and the second shell are fixedly connected by screws; It also includes a laser module, a control module and a heat dissipation module fixedly mounted on the inner side of the second housing; A cooling fin is slidably engaged with the outer side of the laser module; and the cooling fin is slidably engaged with both the first shell and the second shell; A fixing block is fixedly mounted on the first housing; a button is slidably mounted on the fixing block; A control switch that cooperates with the button is fixedly mounted on the control module; when the button presses the control switch, the laser module, the cooling plate, and the heat dissipation module all operate; A locking structure, provided on the first housing, comprising a first wedge for limiting the position of the button; an unlocking structure, provided on the first housing, comprising a second wedge block for compressing the first wedge block; A pressure-sensing structure is provided on the first housing and connected to the cooling fin; it includes a top plate for providing the squeezing force of the second wedge block; and the top plate is slidably engaged with the first housing; When the cooling plate is squeezed, the cooling plate drives the pressure-sensitive structure to move, thereby driving the top plate to slide, thereby squeezing and driving the second wedge block to move; thereby squeezing and driving the first wedge block to move, thereby releasing the locked state of the button.

[0007] As a further solution of the present invention: the locking structure also includes a fixed telescopic sleeve fixedly mounted on the first shell; the fixed telescopic sleeve is slidably engaged with the first wedge block; a first spring is provided in the fixed telescopic sleeve; the two ends of the first spring respectively contact the first wedge block and the fixed telescopic sleeve; a slot is provided on the button; an inclined surface and a straight surface parallel to the slot are provided on the first wedge block, and the straight surface can contact the slot.

[0008] As a further solution of the present invention: the pressure-sensing structure also includes a first mounting plate and a second mounting plate that are slidably engaged with the inner sides of the first shell and the second shell; the first mounting plate and the second mounting plate are fixedly connected by multiple groups of connecting rods; a return spring is provided on the inner side of the first shell; the two ends of the return spring respectively contact the first shell and the second mounting plate.

[0009] As a further solution of the present invention: the pressure-sensing structure also includes a rotating block rotatably mounted on the first shell; a first connecting rod and an arc-shaped connecting rod are fixedly mounted on the rotating block; a sliding groove slidably connected to the first connecting rod is provided on the second mounting plate; a slider is slidably mounted on the top plate; the slider is hinged to the end of the arc-shaped connecting rod; and an extrusion block is fixedly mounted on the top plate.

[0010] As a further solution of the present invention: the arc-shaped connecting rod is arc-shaped, and its center is close to the top plate; and the distance between the end of the arc-shaped connecting rod hinged to the slider and the rotating block is greater than the distance between the end of the first connecting rod and the rotating block.

[0011] As a further solution of the present invention: the unlocking structure includes a sliding telescopic sleeve slidably mounted on the first shell; the second wedge block is slidably engaged with the sliding telescopic sleeve; a second spring is provided in the sliding telescopic sleeve; the two ends of the second spring respectively contact the second wedge block and the sliding telescopic sleeve; a mating block is fixedly mounted on the end of the sliding telescopic sleeve away from the second wedge block; the mating block is extrusion-engaged with the extrusion block; the second wedge block is provided with an inclined surface and a straight surface parallel to the notch, and the straight surface can contact the notch.

[0012] As a further solution of the present invention: the mating block is provided with a first inclined surface, a first plane, a second inclined surface and a second plane; wherein the first inclined surface is connected to one end of the first plane; the other end of the first plane is connected to one end of the second inclined surface; the other end of the second inclined surface is connected to one end of the second plane; and the first plane and the second plane are both parallel to the extrusion block.

[0013] As a further solution of the present invention: the first spring and the second spring have the same elastic coefficient and size; when the straight surface is in conflict with the notch, the flat surface and the notch do not match; when the flat surface is in conflict with the notch, the straight surface and the notch do not match; and when the straight surface, the flat surface and the notch do not match, the button can slide on the fixed block.

[0014] As a further solution of the present invention: rubber gaskets fixedly connected to the refrigeration fins are fixedly mounted on the first shell and the second shell; the rubber gaskets are used to increase the sealing between the refrigeration fins and the first shell and the second shell.

[0015] As a further solution of the present invention: an exhaust hole cooperating with the heat dissipation module is provided on the second housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: as a home beauty device, the safety and effectiveness of the hair removal device are highly dependent on the contact state between the skin and the cooling plate. In order to achieve precise control, the device innovatively introduces a mechanical linkage system based on pressure sensing, which ensures that the device only works under ideal contact conditions through a three-level pressure response mechanism. The core of the system consists of a pressure-sensing structure, an unlocking structure, and a locking structure to form a closed-loop control; the pressure (contact firmness) between the skin and the cooling plate will act on the unlocking structure in real time through the pressure-sensing structure; when the pressure is insufficient (the skin is not in contact with the cooling plate or the contact is not firm), the locking structure will lock the position of the button to avoid invalid light, so as to avoid reducing the hair removal effect of the hair removal device; and it can reduce the probability of accidental startup during storage and transportation, and reduce the probability of accidents; when the pressure is within the set range (close contact between the skin and the cooling plate), the unlocking structure will be driven by the pressure-sensing structure to release the lock of the button by the locking structure. At this time, The user can use the hair removal device normally; it can ensure the cooling effect of the skin without causing frostbite of the epidermis; and when the pressure is too high (the contact between the skin and the cooling plate is too close), the unlocking structure will re-lock the button to avoid the hair removal device working in a low cooling state and causing discomfort to the user; the cooling plate transmits the extrusion force to the second wedge block in real time through the pressure-sensing structure. The greater the distance the cooling plate moves, the closer its contact with the skin, and the greater the extrusion force of the second wedge block on the first wedge block; according to the degree of contact between the cooling plate and the skin, the action state of the locking structure is controlled, thereby controlling the button, which can help users use the hair removal device correctly, thereby ensuring the hair removal effect of the hair removal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural schematic diagram of an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0018] Figure 2 This is a structural schematic diagram of another perspective of an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0019] Figure 3 This is a schematic structural diagram of the laser module, heat dissipation module, and control module in one embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0020] Figure 4 This is a schematic diagram of the structure of a return spring in an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0021] Figure 5 This is a schematic diagram of the structure of the cooling plate in one embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0022] Figure 6This is a schematic diagram of the pressure-sensing structure of an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0023] Figure 7 for Figure 6 Schematic diagram of the structure at point A.

[0024] Figure 8 This is a structural schematic diagram of the locking structure in an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0025] Figure 9 for Figure 8 Schematic diagram of the structure from a cross-sectional perspective.

[0026] Figure 10 This is a schematic diagram of the structure of a control switch in an embodiment of a handheld home laser hair removal device with a built-in movable cooling plate.

[0027] In the figure: 1. first housing; 2. Second housing; 201. Exhaust hole; 3. Laser module; 4. Fixed block; 5. Control module 6. Refrigeration plate; 7. Heat dissipation module; 8. Rubber gasket; 9. First mounting plate; 10. Second mounting plate; 1001. Slide groove; 11. Connecting rod; 12. Return spring; 13. Rotate the block; 14. First connecting rod; 15. Arc connecting rod; 16. Slider; 17. Top plate; 1701. Extrusion block; 18. button; 1801. notch; 19. Fix the telescopic sleeve; 20. First wedge; 21. First spring; 22. Sliding telescopic sleeve; 23. Second wedge; 24. Second spring; 25. Matching block; 2501. First inclined surface; 2502. First plane; 2503. Second inclined surface; 2504. Second plane; 26. Control switch. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In addition, when an element in the present invention 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. 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. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] See also Figures 1-10 In an embodiment of the present invention, a handheld home laser hair removal device with a built-in movable cooling plate includes a first shell 1 and a second shell 2; the first shell 1 and the second shell 2 are fixedly connected by screws; It also includes a laser module 3, a control module 5 and a heat dissipation module 7 fixedly mounted on the inner side of the second housing 2; A cooling fin 6 is slidably engaged with the outer side of the laser module 3; and the cooling fin 6 is slidably engaged with both the first housing 1 and the second housing 2; A fixing block 4 is fixedly mounted on the first housing 1; a button 18 is slidably mounted on the fixing block 4; The control module 5 is fixedly mounted with a control switch 26 that cooperates with the button 18; when the button 18 presses the control switch 26, the laser module 3, the cooling plate 6, and the heat dissipation module 7 are all activated; A locking structure is provided on the first housing 1 and includes a first wedge 20 for limiting the position of the button 18; An unlocking structure, provided on the first housing 1 , comprising a second wedge block 23 for squeezing the first wedge block 20 ; A pressure-sensing structure is provided on the first housing 1 and connected to the cooling fin 6; it includes a top plate 17 for providing the squeezing force of the second wedge 23; and the top plate 17 is slidably engaged with the first housing 1; When the cooling plate 6 is squeezed, the cooling plate 6 drives the pressure-sensitive structure to move, thereby driving the top plate 17 to slide, thereby squeezing and driving the second wedge block 23 to move; thereby squeezing and driving the first wedge block 20 to move, to release the locked state of the button 18.

[0031] Taking the embodiment combining all the features described in this application as an example, when in use, after the first shell 1 and the second shell 2 are fixedly connected by screws, an installation space can be formed inside for installing various structures of the hair removal device; holding the first shell 1 and the second shell 2 in hand, the hair removal device can be used more easily.

[0032] The user holds the hair removal device and brings the cooling plate 6 into contact with the skin; when the button 18 is pressed, the button 18 will be driven to move toward the control switch 26. During the movement, the button 18 will conflict with the control switch 26 and squeeze the control switch 26 after the conflict, thereby controlling the operation of the laser module 3, the cooling plate 6 and the heat dissipation module 7; the laser module 3 will emit a laser to irradiate the skin covered by the cooling plate 6, thereby removing the hair follicles on the skin; the heat dissipation module 7 is used to cool and dissipate heat for the hair removal device, and is also used to cool the cooling plate 6, so that the cooling plate 6 can continue to maintain a low temperature.

[0033] The control module 5 is used to control the working state and working intensity of the laser module 3 , the cooling plate 6 and the heat dissipation module 7 .

[0034] When the cooling plate 6 is not in contact with the skin or the contact is not firm, the first wedge 20 will lock the position of the button 18 to avoid invalid irradiation, and can reduce the probability of accidental activation during storage and transportation, and reduce the probability of accidents.

[0035] The user applies pressure to make the cooling sheet 6 come into close contact with the skin. During this process, the cooling sheet 6 will slide on the laser module 3 toward the side away from the skin, thereby reducing the distance between the light outlet of the laser module 3 and the skin to improve the irradiation effect.

[0036] The sliding cooling plate 6 will drive the pressure-sensitive structure to move, thereby driving the top plate 17 to slide on the first shell 1, thereby squeezing the unlocking structure, thereby providing an extrusion force for the second wedge block 23 to squeeze the first wedge block 20. Under the squeezing action of the second wedge block 23, the first wedge block 20 will give way, thereby releasing the locking state of the button 18, so that the button 18 can slide on the fixed block 4, thereby controlling the operation of the hair removal device.

[0037] When the pressure applied by the user causes the cooling plate 6 to contact the skin too closely, the cooling plate 6 will continue to drive the pressure-sensitive structure to move, thereby increasing the displacement of the top plate 17, thereby increasing the squeezing force of the second wedge block 23 on the first wedge block 20. At this time, the second wedge block 23 will continue to squeeze the first wedge block 20, so that the second wedge block 23 will conflict with the button 18, thereby re-locking the button 18, thereby avoiding the cooling plate 6 from operating when it is in too close contact with the skin, and avoiding the reduction in comfort of the hair removal device due to poor cooling effect.

[0038] The pressure (contact firmness) between the skin and the cooling plate 6 will act on the unlocking structure in real time through the pressure-sensing structure; when the pressure is insufficient (the skin is not in contact with the cooling plate 6 or the contact is not firm), the locking structure will lock the position of the button 18, thereby avoiding invalid light exposure and preventing the hair removal effect of the hair removal device from being reduced; when the pressure is within the set range (the skin is in close contact with the cooling plate 6), the unlocking structure will be driven by the pressure-sensing structure to move, thereby releasing the lock of the button 18 by the locking structure, and the user can use the hair removal device normally; and when the pressure is too high (the contact between the skin and the cooling plate 6 is too close), the unlocking structure will re-lock the button 18 to avoid the hair removal device causing discomfort to the user when working in a low cooling state.

[0039] In another embodiment of the present invention, the locking structure also includes a fixed telescopic sleeve 19 fixedly mounted on the first housing 1; the fixed telescopic sleeve 19 is slidably engaged with the first wedge block 20; a first spring 21 is provided in the fixed telescopic sleeve 19; the two ends of the first spring 21 respectively contact the first wedge block 20 and the fixed telescopic sleeve 19; a slot 1801 is provided on the button 18; the first wedge block 20 is provided with an inclined surface and a straight surface parallel to the slot 1801, and the straight surface can contact the slot 1801.

[0040] Taking the embodiment combining all the features described in this application as an example, when in use, in the initial state, the straight surface conflicts with the slot 1801. At this time, the first wedge block 20 limits the button 18, so that the user cannot press the button 18 to avoid invalid irradiation, and can reduce the probability of accidental startup during storage and transportation, thereby reducing the probability of accidents.

[0041] When the user applies pressure, bringing their skin into close contact with the cooling plate 6, the pressure-sensing structure applies compressive force to the second wedge 23, forcing it to press against the first wedge 20. During this process, the first wedge 20 slides inward within the fixed telescopic sleeve 19, compressing the first spring 21. The contact area between the straight surface and the notch 1801 gradually decreases. Once the straight surface and notch 1801 are free of contact, the user can press the button 18. As the button 18 slides toward the control switch 26 on the fixed block 4, the notch 1801 slides on the inclined surface.

[0042] After the user finishes using the laser module, the elastic force of the first spring 21 acts on the notch 1801 through the inclined surface, so that the button 18 can slide away from the control switch 26, thereby stopping the laser module 3.

[0043] The button 18 is driven to reset by the locking structure so that the button 18 is disengaged from the control switch 26, thereby improving the convenience and reusability of the hair removal device.

[0044] In another embodiment of the present invention, the pressure-sensing structure also includes a first mounting plate 9 and a second mounting plate 10 that are slidably engaged with the inner sides of the first shell 1 and the second shell 2; the first mounting plate 9 and the second mounting plate 10 are fixedly connected by multiple sets of connecting rods 11; a return spring 12 is provided on the inner side of the first shell 1; and the two ends of the return spring 12 respectively contact the first shell 1 and the second mounting plate 10.

[0045] Taking the embodiment combining all the features described in this application as an example, when in use, when the skin is in close contact with the cooling plate 6, the cooling plate 6 will slide inward in the installation space, so that the exposed length of the cooling plate 6 is reduced, thereby making the light outlet of the laser module 3 closer to the skin, thereby improving the hair removal effect, and the exposed cooling plate 6 can protect the laser module 3, preventing the laser module 3 from easily coming into contact with external debris and causing damage.

[0046] During the sliding of the cooling plate 6, the first mounting plate 9 will be driven to move synchronously, and the second mounting plate 10 will be driven to slide synchronously through the connecting rod 11 to compress the reset spring 12; during the compression of the reset spring 12, its elastic force continues to increase, and the elastic force is transmitted to the cooling plate 6 to make the pressure between the cooling plate 6 and the skin evenly distributed; it can ensure that the cooling surface is always in close contact with the skin, reduce the loss of cold, and avoid light leakage, thereby improving the hair removal effect of the hair removal device.

[0047] In another embodiment of the present invention, the pressure-sensing structure also includes a rotating block 13 rotatably mounted on the first shell 1; a first connecting rod 14 and an arc-shaped connecting rod 15 are fixedly mounted on the rotating block 13; a sliding groove 1001 slidably connected to the first connecting rod 14 is provided on the second mounting plate 10; a slider 16 is slidably mounted on the top plate 17; the slider 16 is hinged to the end of the arc-shaped connecting rod 15; and an extrusion block 1701 is fixedly mounted on the top plate 17.

[0048] Taking the embodiment combining all the features described in this application as an example, when in use, the second mounting plate 10 will drive the slide groove 1001 to slide synchronously during the sliding process, thereby driving the first connecting rod 14 to slide in the slide groove 1001, and the slide groove 1001 will squeeze the first connecting rod 14, thereby driving the first connecting rod 14 to rotate, thereby driving the rotating block 13 to rotate, thereby driving the arc connecting rod 15 to rotate.

[0049] The rotating arc connecting rod 15 drives the slider 16 to slide on the top plate 17 toward one end of the top plate 17 , thereby driving the top plate 17 to slide on the first housing 1 in a direction away from the rotating block 13 . During this process, the arc connecting rod 15 and the slider 16 rotate in coordination.

[0050] During the sliding process of the top plate 17, the squeezing block 1701 will be driven to move synchronously, thereby squeezing the second wedge block 23; the sliding distance of the refrigeration plate 6 is proportional to the moving distance of the top plate 17. The greater the distance the top plate 17 moves, the greater the force with which the squeezing block 1701 squeezes the second wedge block 23.

[0051] The cooling plate 6 transmits the squeezing force to the second wedge block 23 in real time through the pressure-sensing structure. The greater the distance the cooling plate 6 moves, the tighter its contact with the skin, and the greater the squeezing force of the second wedge block 23 on the first wedge block 20. According to the degree of contact between the cooling plate 6 and the skin, the action state of the locking structure is controlled, thereby controlling the button 18, which can help the user use the hair removal device correctly, thereby ensuring the hair removal effect of the hair removal device.

[0052] After use, the cooling plate 6 is out of contact with the skin. At this time, the elastic force of the reset spring 12 can drive the second mounting plate 10 to reset, thereby driving the cooling plate 6 and the top plate 17 to reset, so that the first wedge block 20 can re-lock the button 18 under the elastic force of the first spring 21.

[0053] In another embodiment of the present invention, the arc-shaped connecting rod 15 is arc-shaped, and its center is close to the top plate 17; and the distance between the end of the arc-shaped connecting rod 15 hinged to the slider 16 and the rotating block 13 is greater than the distance between the end of the first connecting rod 14 and the rotating block 13.

[0054] Taking the embodiment combining all the features described in this application as an example, when in use, the center of the arc-shaped connecting rod 15 is close to the top plate 17, which can convert the kinetic energy of the rotation of the arc-shaped connecting rod 15 into the kinetic energy of the sliding of the top plate 17, and reduce the resistance to motion conduction, thereby avoiding wear between the various structures and reducing the service life of the hair removal device.

[0055] The arc-shaped connecting rod 15, the rotating block 13 and the first connecting rod 14 form a "lever structure", and the lever arm of the first connecting rod 14 is shorter than the lever arm of the arc-shaped connecting rod 15. Therefore, the smaller displacement generated by the rotation of the first connecting rod 14 can enable the arc-shaped connecting rod 15 to rotate and generate a larger displacement, thereby ensuring that the top plate 17 can cooperate with the unlocking structure, thereby improving the stability and practicality of the hair removal device.

[0056] In another embodiment of the present invention, the unlocking structure includes a sliding telescopic sleeve 22 slidably mounted on the first shell 1; the second wedge block 23 is slidably engaged with the sliding telescopic sleeve 22; a second spring 24 is provided in the sliding telescopic sleeve 22; the two ends of the second spring 24 respectively contact the second wedge block 23 and the sliding telescopic sleeve 22; a mating block 25 is fixedly mounted on the end of the sliding telescopic sleeve 22 away from the second wedge block 23; the mating block 25 is extruded and engaged with the extrusion block 1701; the second wedge block 23 is provided with an inclined surface and a straight surface parallel to the slot 1801, and the straight surface can contact the slot 1801.

[0057] In another embodiment of the present invention, the mating block 25 is provided with a first inclined surface 2501, a first plane 2502, a second inclined surface 2503 and a second plane 2504; wherein the first inclined surface 2501 is connected to one end of the first plane 2502; the other end of the first plane 2502 is connected to one end of the second inclined surface 2503; the other end of the second inclined surface 2503 is connected to one end of the second plane 2504; and the first plane 2502 and the second plane 2504 are both parallel to the extrusion block 1701.

[0058] Taking the embodiment combining all the features described in this application as an example, when in use, in the initial state, the first wedge block 20 and the second wedge block 23 are in conflict with each other.

[0059] When the top plate 17 slides, it drives the extrusion block 1701 to slide on the matching block 25 to squeeze the second wedge block 23 .

[0060] When the extrusion block 1701 slides, it will first slide on the first inclined surface 2501, so that through the extrusion cooperation between the first inclined surface 2501 and the extrusion block 1701, it can drive the matching block 25 to move toward the first wedge block 20, thereby driving the sliding telescopic sleeve 22 to slide synchronously on the first shell 1, thereby compressing the second spring 24.

[0061] The greater the distance that the squeezing block 1701 slides on the first inclined surface 2501 , the greater the compression amount of the second spring 24 .

[0062] During this process, the elastic force of the second spring 24 acts on the second wedge block 23, thereby driving the second wedge block 23 to slide toward the fixed telescopic sleeve 19, thereby squeezing the first wedge block 20 and compressing the first spring 21, so that the contact area between the straight surface and the slot 1801 becomes smaller and smaller.

[0063] When the extrusion block 1701 is out of contact with the first inclined surface 2501 , the extrusion block 1701 will slide on the first plane 2502 . At this time, the straight surface is out of contact with the notch 1801 , and the button 18 can be pressed.

[0064] When pressure continues to be applied to make the refrigeration plate 6 continue to slide, the extrusion block 1701 will disengage from the first plane 2502 and contact the second inclined surface 2503; when the extrusion block 1701 slides on the second inclined surface 2503, the second wedge block 23 will continue to squeeze the first wedge block 20. During this process, the flat surface will cooperate with the slot 1801, thereby locking the button 18.

[0065] When the extrusion block 1701 is disengaged from the second inclined surface 2503 , the extrusion block 1701 will engage with the second flat surface 2504 , and the button 18 will remain in the locked state.

[0066] The cooling plate 6 transmits the squeezing force to the second wedge block 23 in real time through the pressure-sensing structure. The greater the distance the cooling plate 6 moves, the tighter its contact with the skin, and the greater the squeezing force of the second wedge block 23 on the first wedge block 20. According to the degree of contact between the cooling plate 6 and the skin, the action state of the locking structure is controlled, thereby controlling the button 18, which can help the user use the hair removal device correctly, thereby ensuring the hair removal effect of the hair removal device.

[0067] In another embodiment of the present invention, the first spring 21 and the second spring 24 have the same elastic coefficient and size; when the straight surface is in contact with the slot 1801, the flat surface and the slot 1801 do not fit together; when the flat surface is in contact with the slot 1801, the straight surface and the slot 1801 do not fit together; and when the straight surface, the flat surface and the slot 1801 do not fit together, the button 18 can slide on the fixed block 4.

[0068] Taking the embodiment combining all the features described in this application as an example, when in use, when the extrusion block 1701 slides on the first inclined surface 2501, the contact area between the straight surface and the notch 1801 gradually decreases, and the flat surface does not contact the notch 1801; at this time, the button 18 cannot be pressed due to the squeezing action of the notch 1801 and the straight surface.

[0069] When the squeezing block 1701 slides on the first plane 2502, the straight surface does not contact the slot 1801, and the flat surface does not contact the slot 1801. At this time, when the button 18 is pressed, the button 18 will slide on the inclined surface and the inclined surface, thereby squeezing the first wedge block 20 and the second wedge block 23 to make them give way, and compressing the first spring 21 and the second spring 24; so that the button 18 can squeeze the control switch 26 to control the operation of the hair removal device.

[0070] When the extrusion block 1701 slides on the second inclined surface 2503 and the second flat surface 2504 , the straight surface does not contact the notch 1801 , while the flat surface cooperates with the notch 1801 , thereby locking the button 18 .

[0071] The cooling plate 6 transmits the squeezing force to the second wedge block 23 in real time through the pressure-sensing structure. The greater the distance the cooling plate 6 moves, the tighter its contact with the skin, and the greater the squeezing force of the second wedge block 23 on the first wedge block 20. According to the degree of contact between the cooling plate 6 and the skin, the action state of the locking structure is controlled, thereby controlling the button 18, which can help the user use the hair removal device correctly, thereby ensuring the hair removal effect of the hair removal device.

[0072] In another embodiment of the present invention, a rubber gasket 8 fixedly connected to the refrigeration fin 6 is fixedly mounted on the first shell 1 and the second shell 2; the rubber gasket 8 is used to increase the sealing between the refrigeration fin 6 and the first shell 1 and the second shell 2.

[0073] Taking the embodiment combining all the features described in this application as an example, when in use, the rubber gasket 8 is used to increase the sealing of the hair removal device, which can prevent the condensed water on the cooling plate 6 from entering the interior of the hair removal device through the installation gap, thereby increasing the service life of the hair removal device.

[0074] In another embodiment of the present invention, an exhaust hole 201 cooperating with the heat dissipation module 7 is formed on the second housing 2 .

[0075] Taking the embodiment combining all the features described in this application as an example, when in use, air is discharged outward through the exhaust hole 201 to cool the laser module 3 and the laser irradiation area to avoid the user from having an obvious burning sensation.

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0077] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A handheld home laser hair removal device with a built-in movable cooling plate, comprising a first housing and a second housing; the first housing and the second housing are fixedly connected by screws; It is characterized by: It also includes a laser module, a control module and a heat dissipation module fixedly mounted on the inner side of the second housing; A cooling fin is slidably engaged with the outer side of the laser module; and the cooling fin is slidably engaged with both the first shell and the second shell; A fixing block is fixedly mounted on the first housing; a button is slidably mounted on the fixing block; A control switch that cooperates with the button is fixedly mounted on the control module; when the button presses the control switch, the laser module, the cooling plate, and the heat dissipation module all operate; A locking structure, provided on the first housing, comprising a first wedge for limiting the position of the button; an unlocking structure, provided on the first housing, comprising a second wedge block for compressing the first wedge block; A pressure-sensing structure is provided on the first housing and connected to the cooling fin; it includes a top plate for providing the squeezing force of the second wedge block; and the top plate is slidably engaged with the first housing; When the cooling plate is squeezed, the cooling plate drives the pressure-sensitive structure to move, thereby driving the top plate to slide, thereby squeezing and driving the second wedge block to move; thereby squeezing and driving the first wedge block to move, thereby releasing the locked state of the button.

2. A handheld home laser hair removal device with a built-in movable cooling plate according to claim 1, characterized in that: The locking structure also includes a fixed telescopic sleeve fixedly mounted on the first housing; the fixed telescopic sleeve is slidably engaged with the first wedge block; a first spring is provided in the fixed telescopic sleeve; the two ends of the first spring respectively contact the first wedge block and the fixed telescopic sleeve; a slot is provided on the button; the first wedge block is provided with an inclined surface and a straight surface parallel to the slot, and the straight surface can contact the slot.

3. The handheld home laser hair removal device with a built-in movable cooling plate according to claim 2, characterized in that: The pressure-sensing structure also includes a first mounting plate and a second mounting plate that are slidably engaged with the inner sides of the first shell and the second shell; the first mounting plate and the second mounting plate are fixedly connected by multiple sets of connecting rods; a return spring is provided on the inner side of the first shell; the two ends of the return spring respectively contact the first shell and the second mounting plate.

4. The handheld home laser hair removal device with a built-in movable cooling plate according to claim 3, characterized in that: The pressure-sensing structure also includes a rotating block rotatably mounted on the first shell; a first connecting rod and an arc-shaped connecting rod are fixedly mounted on the rotating block; a sliding groove slidably connected to the first connecting rod is provided on the second mounting plate; a slider is slidably mounted on the top plate; the slider is hinged to the end of the arc-shaped connecting rod; and an extrusion block is fixedly mounted on the top plate.

5. The handheld home laser hair removal device with built-in movable cooling plate according to claim 4, characterized in that: The arc connecting rod is arc-shaped, and its center is close to the top plate; and the distance between the end of the arc connecting rod hinged to the slider and the rotating block is greater than the distance between the end of the first connecting rod and the rotating block.

6. The handheld home laser hair removal device with built-in movable cooling plate according to claim 4, characterized in that: The unlocking structure includes a sliding telescopic sleeve slidably mounted on the first shell; the second wedge block is slidably engaged with the sliding telescopic sleeve; a second spring is provided in the sliding telescopic sleeve; the two ends of the second spring respectively contact the second wedge block and the sliding telescopic sleeve; a mating block is fixedly mounted on the end of the sliding telescopic sleeve away from the second wedge block; the mating block is extruded and engaged with the extrusion block; the second wedge block is provided with an inclined surface and a straight surface parallel to the notch, and the straight surface can contact the notch.

7. The handheld home laser hair removal device with built-in movable cooling plate according to claim 6, characterized in that: The mating block is provided with a first inclined surface, a first plane, a second inclined surface and a second plane; wherein the first inclined surface is connected to one end of the first plane; the other end of the first plane is connected to one end of the second inclined surface; the other end of the second inclined surface is connected to one end of the second plane; and the first plane and the second plane are both parallel to the extrusion block.

8. The handheld home laser hair removal device with built-in movable cooling plate according to claim 6, characterized in that: The first spring and the second spring have the same elastic coefficient and size; when the straight surface is in conflict with the slot, the flat surface and the slot do not match; when the flat surface is in conflict with the slot, the straight surface and the slot do not match; and when the straight surface, the flat surface and the slot do not match, the button can slide on the fixed block.

9. The handheld home laser hair removal device with built-in movable cooling plate according to claim 1, characterized in that: Rubber gaskets fixedly connected to the refrigeration fins are fixedly mounted on the first shell and the second shell; the rubber gaskets are used to increase the sealing between the refrigeration fins and the first shell and the second shell.

10. The handheld home laser hair removal device with built-in movable cooling plate according to claim 1, characterized in that: The second shell is provided with an exhaust hole matched with the heat dissipation module.

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