Motor module and hair removal device

Abstract

The utility model relates to the technical field of electric transmission devices, in particular to a motor module and a hair removing device, aims to solve the problem of matching between an eccentric wheel and a sliding groove in the prior art, and provides the motor module which comprises a power assembly and a transmission assembly, and the power assembly provides power for the transmission assembly to drive the transmission assembly. The transmission assembly comprises a first-stage transmission assembly, the first-stage transmission assembly comprises an eccentric assembly, a sliding block and a sliding groove, the sliding block is arranged between the eccentric assembly and the sliding groove, and the sliding groove is arranged to be a groove which allows the sliding block to slide in the length direction of the sliding groove and drives the sliding groove to swing in the width direction. The power assembly drives the eccentric assembly to move so that the eccentric assembly can drive the sliding block to move and achieve swinging of the sliding groove, the sliding block is in linkage and cooperation between the eccentric assembly and the sliding groove, noise is relatively low, the modular motor module is directly applied to products, the whole product does not need a tedious transmission structure, and the development prospect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of electric transmission devices, in particular to a motor module and a hair removal device. Background Art

[0002] Reciprocating shavers basically use a swing mechanism to convert the rotational motion of a motor into a reciprocating motion to drive a cutter head assembly mounted on the swing mechanism to achieve shaving and trimming of hair.

[0003] On this basis, Chinese invention CN117817720A discloses a swing mechanism of a reciprocating electric shaver and a reciprocating electric shaver thereof, which drives an eccentric wheel through a driving motor, and directly drives the swing frame to swing left and right through the cooperation between the eccentric wheel and the slide groove on the swing frame. In this structure, the cooperation between the eccentric wheel and the slide groove is not tight enough, and the friction between the two is large, the energy loss is serious, and the noise generated is relatively large.

[0004] Meanwhile, conventional shavers have various transmission parts and supporting mechanisms built on the shaver housing, each transmission part and supporting mechanism is adjusted accordingly to the shaver, and the assembly of each component requires a complex connection relationship.

[0005] Based on the above problems, a modular motor module and a hair removal device with the motor module are provided. Utility Model Content

[0006] In order to solve the above technical problems, the purpose of the utility model is to provide a motor module and a hair removal device, which solves the matching problem between the existing eccentric wheel and the slide groove.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a motor module, including a power component and a transmission component, the power component provides power to the transmission component to drive the transmission component, the transmission component includes a first-stage transmission component, the first-stage transmission component includes an eccentric component, a slider and a slide groove, the slider is arranged between the eccentric component and the slide groove, the slide groove is arranged to allow the slider to slide in the length direction of the slide groove and drive the slide groove to swing in the width direction, the power component drives the eccentric component to move so that the eccentric component drives the slider to move and realizes the swing of the slide groove.

[0008] By adopting the above technical solution, the slider forms a linkage and cooperation between the eccentric component and the slide slot, so that the cooperation between the transmission structures is tighter, the driving between the components is smoother, the noise generated is relatively small, the energy loss is small, and a good cooperation structure is formed; the power component has its own transmission component to form a modular motor module, which is directly applied to the product, and the whole product does not require complicated transmission structure and assembly.

[0009] Furthermore, rolling elements that can rotate relative to the slider are provided on the side surface of the slider in contact with the sliding groove, and the rolling elements protrude beyond the surface of the slider.

[0010] By adopting the above technical solution, the rolling elements form rolling friction between the slider and the sliding groove, reducing the wear between components, providing a more precise and smooth mating movement, and meeting the noise reduction requirements.

[0011] Furthermore, the slider includes a cage and a rolling support, and an insertion assembly is provided between the cage and the rolling support for assembly, and the rolling elements are rotatably defined between the cage and the rolling support.

[0012] By adopting the above technical solution, the slider has a double-layer structure, better strength, is not easily deformed, and through the insertion assembly, the cage and the rolling support maintain a high degree of fit and synchronization, and the pressure plate prevents the cage and the rolling support from separating.

[0013] Furthermore, the slider is integrally a square block structure, a circular connection groove is provided in the middle of the slider, the sliding groove is a long groove-shaped structure adapted to the slider in the width direction and with a length greater than the length of the slider, and a bearing is provided in the connection groove for connecting the eccentric assembly.

[0014] By adopting the above technical solution, the circular connection groove cooperates with the square block-shaped slider, which can convert the eccentric rotational motion in the circumferential direction into a linear motion, and drive the sliding groove to swing in the width direction under the action of the sliding groove.

[0015] Furthermore, the transmission assembly includes a swing arm assembly, the swing arm assembly includes a main swing arm and a secondary swing arm, the sliding groove is fixed to the main swing arm, and the main swing arm and the secondary swing arm are linked by a secondary transmission assembly.

[0016] By adopting the above technical solution, the primary transmission assembly drives the swing arm assembly, and the main swing arm and the secondary swing arm are driven by the secondary transmission assembly, forming the main transmission part of the reciprocating shaver.

[0017] Furthermore, a frame is provided between the power assembly and the transmission assembly.

[0018] By adopting the above technical solution, the frame provides support for the power assembly and the transmission assembly, and as a part of the motor module, the frame forms a modular motor module with the power assembly and the transmission assembly.

[0019] Furthermore, the secondary transmission assembly includes a bogie arranged vertically, the upper and lower ends of the bogie are respectively rotatably connected to the main swing arm and the secondary swing arm, and the center of the bogie is rotatably connected to the frame.

[0020] At present, the two swing arms usually move at the same horizontal height and in the same direction, which has the following two problems: 1. The swing arm does not have the function of floating up and down; 2. When the swing arm structure swings to the extreme point, the inertia causes the entire product including the swing arm structure to be displaced in the corresponding direction of the swing arm swing, especially the swing arm under high-speed movement, which will make the whole product vibrate significantly, thereby affecting the comfort of product use. By adopting the above technical solution, the swing arm assembly moves along an arc trajectory under the action of the vertically arranged bogie, so as to achieve the purpose of the traditional swing arm assembly swinging left and right in the horizontal direction. Compared with the traditional swing arm assembly, it can offset each other's inertia and reduce vibration, while meeting the requirement of the swing arm assembly floating in the vertical direction.

[0021] Furthermore, a buffer structure is arranged between the frame and the main swing arm and the auxiliary swing arm.

[0022] By adopting the above technical solution, the main swing arm and the auxiliary swing arm float up and down in the vertical direction, which inevitably causes greater shaking compared to the swing arm structure with single horizontal movement. The setting of the buffer assembly provides a vertical tensioning force between the swing arm structure and the frame to eliminate the accumulated tolerance and shaking, make the connection tighter, and reduce braking and noise.

[0023] Furthermore, a driving head assembly is arranged on the swing arm assembly, and a base for mounting the driving head assembly is arranged on the swing arm assembly, and the driving head assembly and the base are detachably fixed via a snap-fit ​​structure.

[0024] By adopting the above technical solution, the swing arm assembly can remain unchanged. Only by replacing the drive head assembly of different shapes can it adapt to knives of different shapes, or multiple branch drive heads can drive multiple sets of knives. One set of molds can meet the needs of knives in a variety of different usage scenarios, and the product has a wide range of applications.

[0025] Furthermore, the drive head assembly includes a main support, a positioning pin, a movable knife top block and a spring. The positioning pin passes through the main support and enters the base. The movable knife top block is fixed to the top of the main support and confines the positioning pin in the drive head assembly. The spring is sleeved outside the positioning pin.

[0026] By adopting the above technical solution, the moving knife is installed on the drive head assembly, and the positioning pin passes through the drive head assembly and is fixed on the swing arm assembly, so that the drive head assembly is accurately and firmly fixed, and the moving knife is fixed with this positioning pin as the center; the elastic force of the spring keeps the moving knife tightly pressed against the fixed knife to ensure effective shearing; and the gap caused by assembly and movement deviation can be eliminated.

[0027] The hair removal device comprises a housing and the above-mentioned motor module, wherein the motor module is arranged in the housing.

[0028] By adopting the above technical solution, the motor module is applied to the hair removal device, and as a whole, the motor module can be directly applied to the product.

[0029] Compared with the prior art, the advantages of the present utility model are as follows: 1. The setting of the slider improves the traditional structure driven by the eccentric wheel and the chute, adjusts and coordinates between the eccentric component and the chute, makes the connection of the components closer, the coordination more precise, and reduces the movement deviation; 2. The setting of the rolling parts on the surface of the slider makes the sliding smoother, reduces the friction between components and the energy loss, and achieves the purpose of reducing noise; 3. The main swing arm and the secondary swing arm are connected by a vertically arranged bogie and fixed by the frame, with close cooperation and high synchronization; 4. The buffer component between the swing arm component and the frame eliminates the cumulative tolerance and shaking, makes the connection tighter, and reduces braking and noise; 5. The double-layer slider structure assembled by the cage, the rolling support and the pressing plate has higher strength and is not easy to deform; 6. Through the replaceable drive head component, replacing the drive head components of different shapes can adapt to different-shaped knives, or the drive head with multiple branches can drive multiple groups of knives; 7. The through shaft is extended to pass through the base and the drive head component, and the installation of the drive head component is more precise and stable; 8. The setting of the spring sleeved on the through shaft ensures that the moving knife presses the fixed knife when the transmission structure is applied to the shaver, and eliminates the gap caused by assembly and movement deviation; 9. Designing the transmission structure, the frame and the power component into a modular motor module can be directly applied to the product, and the whole machine of the product does not require a cumbersome transmission structure; 10. The main swing arm and the secondary swing arm that move in an arc in the reverse direction realize the floating of the product and offset the vibration of the product caused by the inertia of the reciprocating motion. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic exploded view of the present invention.

[0031] Figure 2 It is a schematic structural view of the swing arm component of the present invention in the first state.

[0032] Figure 3 It is a schematic structural view of the swing arm component of the present invention in the second state.

[0033] Figure 4 It is a schematic structural view of the swing arm component of the present invention in the third state.

[0034] Figure 5 It is a schematic top view structural view of the swing arm component of the present invention in the first state.

[0035] Figure 6 It is a sectional view of the swing arm component of the present invention in the first state.

[0036] Figure 7 It is a schematic structural view of the slider of the present invention.

[0037] Figure 8Schematic diagram of the slider decomposition structure of the present invention.

[0038] Figure 9 Schematic diagram of the eccentric component structure of the present invention.

[0039] Figure 10 Schematic diagram of the cooperation structure between the slider and the main swing arm of the present invention.

[0040] Figure 11 Schematic diagram of the drive head component decomposition structure of the present invention.

[0041] Figure 12 Schematic diagram of the hair removal device decomposition structure of the present invention.

[0042] Figure 13 Cross-sectional view of the hair removal device of the present invention.

[0043] Figure 14 Schematic diagram of the hair removal device structure of the present invention.

[0044] In the figure: 1. Main swing arm, 1-1. Slide groove, 2. Drive head component, 3. Base, 4. Snap structure, 5. Pressure plate, 6. Cage, 7. Locating ring, 8. Slide block bracket, 9. Rolling element, 10. Eccentric component, 10-1. Upper block, 10-2. Lower block, 11. Bearing, 12. Shaft, 13. Bogie, 14. Output shaft, 15. Frame, 16. Sub-swing arm, 17. Buffer, 18. Limit structure;

[0045] 100. Slide block, 101. Connection groove;

[0046] 200. Motor, 210. Coil assembly, 211. Coil, 212. Iron core, 220. Wire, 230. Permanent magnet, 240. Bracket, 250. Rotor housing;

[0047] 300. Housing, 301. Bottom cover plate, 302. Circuit board, 303. Battery, 304. Mounting bracket, 305. Switch, 306. Waterproof ring, 307. Waterproof cover plate, 308. Motor waterproof ring, 309. Pressure plate, 310. Moving knife, 311. Fixed knife, 312. Knife holder, 313. Head cover, 314. Magnet, 315. Screw;

[0048] 400. Motor module. Detailed implementation mode

[0049] The following further describes the present utility model in detail with reference to the attached drawings and embodiments.

[0050] Embodiment 1: Consisting of Figures 1 to 10Provided is a motor module 400, which includes a power assembly and a transmission assembly. The power assembly provides power for the transmission assembly to drive the transmission assembly. The transmission assembly includes a primary transmission assembly, and the primary transmission assembly includes an eccentric assembly 10, a slider 100, and a chute 1-1. The swing arm assembly includes a main swing arm 1 and a secondary swing arm 16. The main swing arm 1 and the secondary swing arm 16 are linked by a vertically arranged bogie 13.

[0051] Based on the above embodiment, Figures 7 to 10 Provided that the slider 100 is a square block structure, and the chute 1-1 is a groove structure with a long strip-shaped space. The slider is arranged between the eccentric assembly 10 and the chute 1-1. The slider 100 and the chute 1-1 are adapted in the width direction. The length of the chute 1-1 is greater than the length of the slider 100, so that when the slider 100 slides in the length direction, its movement is limited within the chute 1-1. At this time, the chute 1-1 provides a space for the slider 100 to move. However, when the slider 100 moves in the width direction, since there is no reserved space between the chute 1-1 and the slider 100, the slider 100 drives the chute 1-1 to move together in the width direction. The chute 1-1 is fixed to the main swing arm 1. The eccentric assembly 10 is driven by the power assembly, and the rotation drives the slider 100 to move. The slider 100 moves and drives the chute and the main swing arm 1 fixed to the chute 1-1 to swing left and right. The main swing arm 1 drives the secondary swing arm 16 to swing in the direction opposite to the movement direction of the main swing arm 1 through the bogie 13.

[0052] Based on the above embodiment, a connecting groove 101 is arranged inside the slider 100. The connecting groove 101 is a circular groove structure. A bearing 11 is installed in the connecting groove 101. The eccentric assembly 10 is connected through the bearing 11. The eccentric assembly 10 is connected to the output shaft 14 of the power assembly. Driven by the power assembly, a force for eccentric movement is provided for the slider 100 to drive the slider 100 to move. The eccentric assembly 10 includes an upper block 10-1 and a lower block 10-2 which are arranged up and down and have non-corresponding axes. The output shaft 14 is connected to the lower block 10-2. The upper block 10-1 is connected to the inner hole of the bearing 11. The outer wall of the bearing 11 is fixed to the connecting groove 101.

[0053] Embodiment 2: Based on the above embodiment, Figure 1 and Figures 7 to 8 Provided that rolling elements 9 are respectively arranged on the surfaces of the slider 100 that are in contact with the inner wall of the chute. The rolling elements 9 protrude beyond the surface of the slider 100.

[0054] Embodiment 3: Based on Embodiment 2, Figure 8Given that the slider 100 includes a cage 6 and a rolling support 8, a space for accommodating the rolling support 8 is provided on the cage 6, and plug-in components are respectively arranged at each corner position between the cage 6 and the rolling support 8. Each of the plug-in components includes a corresponding slot and a plug. The slot is arranged on the cage 6, and the plug is arranged on the rolling support 8. The cage 6 is sleeved outside the rolling support 8 through the plug-in components. The plug extends beyond the slot and is connected by a pressure plate 5 with a clamping groove. The position of the clamping groove on the pressure plate 5 is adapted to the plug, and the cage and the rolling support are pressed tightly to prevent the two from floating up and down and separating, so as to affect the limit of the rolling element 9.

[0055] On the basis of the above embodiment, an installation groove 9-1 for installing the rolling element 9 is provided on the cage 6. The installation groove 9-1 opens towards the inside and outside of the slider respectively. The opening of the installation groove towards the outer surface of the slider is smaller than the maximum diameter of the rolling element to form a limit for the rolling element. The rolling element 9 is limited within the installation groove 9-1 and rolls with the outer surface of the rolling support 8 as the supporting surface. Each of the rolling elements 9 can be disassembled and assembled through the socket connection between the cage and the rolling support.

[0056] Different from the above embodiment, the cage 6 and the rolling support 8 can be sleeved through the plug-in components by providing slots on the cage 6 and plugs on the rolling support.

[0057] On the basis of Embodiment III, Figures 7 to 8 Given that the rolling element 9 is a cylindrical roller or needle roller, the height of the rolling element is not limited by the rolling diameter. Correspondingly, a plurality of installation grooves 9-1 are arranged in an array along the length direction on the side surface of the cage 6, and each installation groove 9-1 extends in the height direction of the slider 100.

[0058] Different from the above embodiment, Figure 1 Given that the rolling element 9 is a spherical ball, correspondingly, the installation grooves 9-1 can be arranged in multiple rows and columns on the side surface of the cage 6 according to the height of the slider 100.

[0059] Embodiment IV, on the basis of Embodiment I, Figures 1 to 6 Given that the transmission structure is installed through a frame 15. Extension wings for installing the bogie 13 are respectively arranged at both ends of the frame 15. The center of the bogie 13 is rotatably connected to the extension wings of the frame 15. The upper and lower ends of the bogie 13 are respectively rotatably connected to the main swing arm 1 and the auxiliary swing arm 16. The bogie 13 is arranged on both sides of the main swing arm and the auxiliary swing arm. An opening groove for accommodating the lower end of the auxiliary swing arm is formed on each of the extension wings.

[0060] Based on the above embodiments, the bogie 13 is rotatably connected to the main swing arm 1, the auxiliary swing arm 16, and the frame 15 through pivot structures respectively. The pivot structure includes a shaft 12 and a bearing 11. One end of the shaft 12 is fixed to the bogie 13, and the other end penetrates into the inner hole of the bearing 11 and is connected to the swing arm structure or the frame 15 through the bearing 11.

[0061] Embodiment 5. Based on the above embodiments, Figure 1 , Figure 6 , Figure 12 are given. A buffer assembly is provided between the frame 15 and the swing arm assembly. The frame 15 includes a support plane, and a limit structure 18 for positioning the buffer assembly is provided on the swing arm structure. The limit structure includes a raised column and a groove. A limit hole that can be stuck in the groove and sleeved on the raised column is provided on the buffer assembly.

[0062] Based on the above embodiments, the buffer assembly includes a plurality of independently provided buffer members 17. Each of the buffer members 17 is correspondingly provided between the two sides of the main swing arm and the frame and between the two sides of the auxiliary swing arm and the frame. The limit structure is provided on the lower surfaces of the main swing arm and the auxiliary swing arm and the upper surface of the support plane respectively.

[0063] Based on the above embodiments, the buffer member 17 is a spring, and the inner hole of the spring serves as the limit hole.

[0064] The difference from the above embodiments is that the buffer member is a rubber block, and a concave hole corresponding to the limit structure is provided on the rubber block as the limit hole.

[0065] Embodiment 6. Based on the above embodiments, Figure 1 , Figure 11 are given. A driving head assembly 2 is provided on the swing arm assembly, and the driving head assembly 2 is detachably fixed to the swing arm assembly.

[0066] Based on the above embodiments, a base 3 for installing the driving head assembly 2 is provided on the swing arm assembly. The driving head assembly 2 and the base 3 are detachably fixed through a snap structure 4. The driving head assembly includes a main support 2-4, a positioning pin 2-1, a moving knife top block 2-2, and a spring 2-3. The positioning pin 2-1 passes through the main support 2-4 and penetrates into the base 3. The moving knife top block 2-2 is fixed at the top of the main support and confines the positioning pin 2-1 within the driving head assembly 2. The spring 2-3 is sleeved outside the positioning pin 2-1.

[0067] In the above embodiments, the bearing 11 is a ball bearing, and a positioning ring 7 is provided at the connection of the bearing 11 and each component.

[0068] Embodiment 7. Based on the above embodiments, Figure 1Given that the power component is the motor 200, the motor 200 includes a coil assembly 210, a permanent magnet 230, a bracket 240, a rotor housing 250, an output shaft 14 and a bearing 11. The rotor housing 250 and the bracket 240 adopt a cylindrical structure. The coil assembly 210 is a cylindrical structure formed by assembling a plurality of coils 211 and an iron core 212. A plurality of permanent magnets 230 are provided. The plurality of permanent magnets 230 are arranged in a ring on the bracket 240 and are fixedly connected to the rotor housing 250 through the bracket 240. The coil assembly 210 is located inside a plurality of ring-shaped permanent magnets 230. The upper end of the output shaft 14 passes through the frame and is rotatably connected to the frame through the bearing 11, and its lower end is fixed at the center position of the bottom of the rotor housing 250. The motor 200 is connected to the power component through a wire 220. After current is applied, the output shaft 14 rotates to drive the slider 100 to move.

[0069] Embodiment VIII: A hair removal device, comprising Figures 12 to 14 Given that it includes a housing 300. The entire structure of the power component driving the transmission structure serves as a motor module 400 independent of the housing 300. The motor module 400 is connected to a control module and a power module. The control module includes a circuit board 302 and a switch 305. The power module includes a battery 303 and a charging interface. A waterproof ring 306 is provided at the charging interface. An installation bracket 304 for installing the motor module 400 is provided inside the housing 300. A bottom cover plate 301 is provided at the bottom of the housing 300. A waterproof cover plate 307, a motor waterproof ring 308 and a pressing plate 309 are provided on the motor module 400, and it is connected to a knife assembly through a driving head assembly 2. The knife assembly includes a moving knife 310 and a fixed knife 311. A knife rest 312 is provided at the top of the housing 300. The knife assembly is located inside the knife rest 312. A head cover 313 is provided outside the knife rest 312. The motor module 400 is fixed to the installation bracket 304 and the housing 300 through screws 315.

[0070] Magnets 314 are respectively provided on the installation bracket 304, the switch 305, the waterproof cover plate 307 and the knife assembly of the hair removal device.

[0071] The working principle process of the present invention is as follows: Denote the connection axis of each bogie 13 and the main swing arm as B, the connection axis of the bogie 13 and the auxiliary swing arm 16 as C, and the connection axis of the bogie 13 and the frame 15 as A. Under the action of the power component, the electric component and the control component, the driving slider 100 drives the main swing arm 1 to reciprocate in the F and G directions; the main swing arm 1 drives the two vertically arranged bogies 13 to rotate synchronously around the axis A. When the bogie 13 rotates counterclockwise around the A axis, the main swing arm 1 swings in the F direction. The first state of the swing arm assembly is the state when the main swing arm swings to the leftmost position. When the bogie 13 rotates clockwise, the main swing arm 1 swings in the G direction. The second state of the swing arm assembly is the state when the main swing arm swings to the rightmost position. The third state of the swing arm assembly is the state when the main swing arm swings to the middlemost position. The two swing arms of the swing arm assembly reciprocate alternately, driving the two driving head assemblies on the main swing arm 1 and the auxiliary swing arm 16 to reciprocate alternately, realizing the reciprocation of the knife assembly in the hair removal device.

[0072] Principle of the eccentric component: Denote the axis of the upper block 10-1 as axis H, and the axis of the lower block 10-2 as axis I. The lower block 10-2 is fixed to the output shaft 14. When the output shaft 104 rotates, it drives the eccentric component to rotate around the axis I. The upper block 10-1 is inserted into the inner hole of the ball bearing, and the ball bearing rotates around the axis H. The axis H rotates around the axis I, thereby driving the entire slider 100 to rotate around the axis I, so as to provide a force for the eccentric motion of the slider 100 to drive the slider 100 to move. When the slider 100 moves relative to the chute, due to the presence of the rolling elements between the mating walls, the friction is small. Under the action of the chute, the circular motion of the slider is converted into a linear motion, realizing the conversion of the motion trajectory. In this solution, the slider 100 is a separate part and can be paired with a chute or other parts with a chute to realize swinging.

[0073] Although the preferred embodiments of the present utility model have been described in detail above, it should be clearly understood that various changes and modifications can be made to the present utility model for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. Motor module, including a power component and a transmission component, the power component provides power for the transmission component to drive the transmission component, characterized in that, The transmission assembly includes a primary transmission assembly. The primary transmission assembly includes an eccentric assembly, a slider, and a chute. The slider is disposed between the eccentric assembly and the chute. The chute is configured as a groove that allows the slider to slide within the length direction of the chute and drives the chute to swing in the width direction. The power assembly drives the eccentric assembly to move, causing the eccentric assembly to drive the slider to move and realizing the swinging of the chute.

2. The motor module according to claim 1, characterized in that, Rolling members that can rotate relative to the slider are provided on the side surface of the slider in contact with the chute, and the rolling members protrude beyond the surface of the slider.

3. The motor module according to claim 2, characterized in that, The slider includes a cage and a rolling support. An insertion assembly is provided between the cage and the rolling support for assembly, and the rolling members are rotatably defined between the cage and the rolling support.

4. The motor module according to claim 1, characterized in that The slider is of an overall square block structure. A circular connection groove is provided in the middle of the slider. The chute is a long groove-shaped structure that is adapted to the slider in the width direction and has a length greater than the length of the slider. A bearing is provided in the connection groove for connecting the eccentric assembly.

5. The motor module according to claim 1, characterized in that, The transmission assembly includes a swing arm assembly. The swing arm assembly includes a main swing arm and a sub-swing arm. The chute is fixed to the main swing arm, and the main swing arm and the sub-swing arm are linked by a secondary transmission assembly.

6. The motor module according to claim 5, wherein A frame is provided between the power assembly and the transmission assembly.

7. The motor module according to claim 6, characterized in that, The secondary transmission assembly includes a vertically disposed bogie. The upper and lower ends of the bogie are respectively rotatably connected to the main swing arm and the sub-swing arm, and the center of the bogie is rotatably connected to the frame.

8. The motor module according to claim 6, characterized in that, A buffer structure is provided between the frame and the main swing arm and the sub-swing arm.

9. The motor module according to claim 5, characterized in that, A drive head assembly is provided on the swing arm assembly. A base for installing the drive head assembly is provided on the swing arm assembly, and the drive head assembly and the base are detachably fixed by a snap structure.

10. Hair removal device, including a housing, characterized in that, It further includes the motor module according to any one of claims 1-9, and the motor module is disposed within a housing.

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