Self-cleaning electric clipper

Abstract

This invention discloses a self-cleaning electric clipper, belonging to the technical field of hair clippers. The self-cleaning electric clipper includes a hollow housing with detachable ends. A control switch is mounted on the surface of the housing. A fixed blade is fixedly connected to one side of the inner housing, and a movable blade is slidably connected to the top surface of the fixed blade. A sliding shearing assembly is installed inside the inner housing to reduce the vertical compression of hair clippings and decrease the friction surface between the fixed and movable blades. By employing the sliding shearing assembly, the movable blade performs a combined lateral reciprocating shearing and axial extension / retraction motion. The contact friction between the fixed and movable blades is no longer a simple planar reciprocating motion, but rather involves periodic pressure changes and slight lateral misalignment, cleaning hair clippings in real time. This prevents the long-term accumulation of moist debris on the blade friction surface, avoiding the growth of bacteria and mold and eliminating hygiene hazards associated with cross-use.

Description

Technical Field

[0001] This invention belongs to the field of hair clipper technology, specifically relating to a self-cleaning electric clipper. Background Technology

[0002] Electric hair clippers are a type of hairdressing tool that uses a motor to drive the blades in a rapid reciprocating or rotating motion. They are used to trim hair, beards, or perform detailed trimming. As an electric alternative to traditional scissors, they can quickly and evenly cut hair, commonly used for short hair, buzz cuts, crew cuts, or trimming. The rapid reciprocating motion of the blades allows for a quick cut, making them especially suitable for short hair or large-area trimming. The blades are designed with a safety gap to reduce the risk of cuts, making them suitable for home use and beginners. No professional hairdressing skills are required. Most models have adjustable blade lengths to control the length of different hairstyles. Traditional hairdressing tools are limited in terms of efficiency and precision, especially in quick haircuts or short hair trimmings, where traditional scissors often perform below expectations. The advent of electric hair clippers has broken through this bottleneck, achieving a fast and even haircut through an electric drive system, greatly improving the efficiency and quality of haircuts.

[0003] Existing electric hair clippers invariably only clean the exterior of the blades (using brushes, airflow, and washing), completely failing to clean the crucial, often overlooked, area where the fixed and moving blades meet. This area is the core carrier of cutting force and the source of hair buildup, blade jamming and dulling, bacterial growth, and frictional heat. Conventional methods cannot reach this area without disassembling the blades or affecting the cutting process, leading to the long-term accumulation of residual hair or dander. This affects the smooth movement of the blades, and the accumulated debris on the friction surface between the fixed and moving blades increases frictional resistance, reduces cutting efficiency, and the moist debris provides a breeding ground for microorganisms, increasing hygiene risks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a self-cleaning electric clipper.

[0005] The technical solution adopted to solve the above technical problems is: a self-cleaning electric hair clipper, including a housing with a hollow internal structure and detachable structures at both ends of the housing, and a control switch installed on the surface of the housing. A buffer layer is bonded to the inner wall of the housing, and a plurality of hexagonal holes are opened inside the buffer layer. The buffer layer has a T-shaped hollow structure inside, and an inner shell is bonded to the inside of the buffer layer. The inner shell has a hollow internal structure. A fixed blade is fixedly connected to one side of the inner shell, and a movable blade is slidably connected to the top surface of the fixed blade. The inner shell is equipped with a sliding shearing assembly to reduce the vertical compression of the hair fragments and decrease the friction surface between the fixed and moving blades where the hair fragments are embedded.

[0006] Through the above technical solution, the moving blade at the front end of the electric clipper achieves a composite action of "lateral reciprocating shearing plus axial extension" through the cross-shaped compound motion of the sliding shearing component. This makes the contact friction of the fixed and moving blades no longer a simple planar reciprocating motion, but rather involves periodic pressure changes and lateral misalignment. The rear end of the electric clipper, through a closed-loop airflow channel formed by heat dissipation holes, connecting pipes, and exhaust holes, uses the negative pressure generated by a micro fan to achieve directional suction of the fixed and moving blades in contact with the shearing area. This cleans up the hair clippings pressed against the friction area in real time during the haircutting process, without stopping or disassembling the machine, completely solving the core cleaning blind spot of traditional electric clippers.

[0007] Furthermore, the sliding shear assembly includes a motor installed and fixed inside the inner shell, with the motor output end connecting shaft rotatably connected to the inner shell. A second bevel gear is fixedly connected to the end of the motor output end connecting shaft, a first bevel gear is driven to one side of the second bevel gear, and a worm gear is fixedly connected to one side of the first bevel gear. The worm gear is rotatably connected to the inner shell, and a worm wheel is driven to the end of the worm gear away from the first bevel gear. The worm wheel connecting shaft is rotatably connected to the inner shell, and a retaining wheel is fixedly connected to the end of the worm wheel connecting shaft.

[0008] Furthermore, a sliding frame is slidably connected inside the inner shell on the side away from the motor, and the inner shell limits the sliding frame. At the same time, a slider is slidably connected inside the sliding frame, and the sliding frame limits the slider.

[0009] Through the above technical solution, the compound shearing action of the moving blade creates a dynamic shearing effect between the fixed and moving blades. Compared with the traditional single linear reciprocating shearing, the shearing is more precise, completely solving the problems of hair pulling and hair jamming. It can achieve uniform and accurate shearing for both fine and soft hair and coarse and hard hair, greatly improving the shearing accuracy and smoothness. Real-time cleaning of broken hairs reduces abrasive wear between the blades, and simultaneous real-time cooling prevents the blade head from softening due to high-temperature annealing. Under the dual effect, the blade head dulling is greatly delayed, extending the blade head replacement cycle. At the same time, the stable load prevents motor overload and jamming, effectively extending the motor's service life and reducing the overall machine failure rate.

[0010] Furthermore, the sliding direction of the slider is arranged in a cross shape with the sliding direction of the sliding frame. A groove is opened on the top surface of the slider, and a fixing rod is installed in the groove. The fixing rod is connected and fixed to the center of the bottom of the chuck, and the fixing rod is slidably connected to the slider.

[0011] Furthermore, a number of limit posts arranged linearly and equidistantly are fixedly connected to the middle of the top surface of the slider, and the chuck engages with the limit posts one by one, so that when the chuck rotates, it engages with the limit posts one by one, driving the slider to slide in the sliding frame. The moving blade is installed and fixed at the end of the slider away from the motor.

[0012] Through the above technical solution, a T-shaped hollow silicone buffer layer with hexagonal holes is set between the outer casing and the inner casing. The highly elastic silicone material can effectively absorb the high-frequency vibration generated by the operation of the motor and transmission structure. Combined with the shock-absorbing cavity formed by the hexagonal holes and hollow structure, the transmission of vibration to the outer casing is greatly reduced. This not only reduces the overall operating noise of the machine, but also reduces the numbness in the hands of the barber caused by holding it for a long time, significantly improving the comfort of long-term continuous operation.

[0013] Furthermore, partitions are provided on both sides of the motor, and the partitions are arranged in a U-shape. One side of the partition is slidably connected to the sliding frame, and the partition is parallel to the sliding frame. Connecting pipes are fixedly connected to both sides of the partition, and the end of the connecting pipe facing the sliding frame is parallel to the partition. Ventilation holes are provided through the sides of the housing away from the fixed blade, and the ventilation holes are connected to the connecting pipes. Heat dissipation holes are provided through the connecting pipes and the moving blade, and an airflow channel is formed between the connecting pipes and the moving blade through the heat dissipation holes.

[0014] Through the above technical solution, the U-shaped partition and the connecting pipe form a closed directional airflow channel, which not only avoids airflow turbulence in the casing and improves heat dissipation and suction efficiency, but also isolates hair clippings and dust from entering the motor and transmission structure area, reducing wear and tear and failure of internal parts, and lowering later maintenance costs.

[0015] Furthermore, two miniature fans are installed at the heat dissipation holes on the inner wall of the partition, and the two miniature fans are arranged in a mirror symmetrical manner to dissipate heat and cool the motor. The miniature fans guide the heat generated by the motor through the airflow channel of the heat dissipation hole into the connecting pipe, and then discharge it to the outside of the casing from the tail of the connecting pipe and the exhaust hole.

[0016] Furthermore, when the airflow inside the connecting pipe is discharged through the tail end of the connecting pipe and the exhaust hole, it simultaneously carries the hair fragments accumulated at the friction surface of the fixed blade and the moving blade, thereby achieving directional negative pressure suction of the shearing area where the fixed blade and the moving blade are in contact. A power cord is installed at the end of the housing away from the fixed blade.

[0017] Through the above technical solution, the forced convection airflow generated by the micro fan directly covers the motor area, which can quickly dissipate the heat generated by the motor operation, significantly reduce the motor's operating temperature, prevent the motor from aging due to high temperature, and significantly extend the motor's service life. On the other hand, the airflow channel is close to the blade head area, which can simultaneously remove the heat generated by the high-speed friction of the fixed and moving blades, reduce the blade head temperature rise, prevent the blade head from burning the scalp during haircuts, and at the same time reduce the wear of the blade edge caused by high temperature, delay the dulling of the blade head, and extend the blade head replacement cycle.

[0018] The beneficial effects of the present invention are as follows: (1) The present invention uses a sliding shear assembly. The motor drives the second bevel gear fixed at the end to rotate synchronously, which in turn drives the chuck fixed on the worm gear shaft to rotate synchronously. When the chuck rotates, its teeth mesh with several limit pins fixed on the top of the slider in sequence. This continuous meshing and disengaging action pushes the slider to slide laterally (perpendicular to the direction of the sliding frame) in the track of the sliding frame. At the same time, the fixing rod fixed at the bottom of the chuck is embedded in the slot on the top of the slider. Therefore, the lateral sliding of the slider in the sliding frame and the sliding frame in the inner shell The axial sliding of the blades, combined with the lateral sliding of the blades, ultimately transmits a composite elliptical trajectory motion to the moving blade above the fixed blade. The elliptical trajectory motion of the moving blade achieves "sliding shearing," and its lateral displacement component acts like scissors, cutting hair more smoothly. This significantly reduces the force of traditional linear reciprocating motion that vertically "push" the hair fragments against the tightly fitting surfaces of the moving and fixed blades, reducing the friction between the fixed and moving blades and fundamentally reducing the burden on the cleaning system. It also ensures the stability of the friction between the blades, thereby maintaining long-term cutting accuracy and smoothness and avoiding jamming caused by the accumulation of hair fragments. (2) This invention integrates the heat dissipation system with the cleaning function. It utilizes a miniature fan, which is necessary for the motor to dissipate heat, to drive airflow into the heat dissipation holes close to the blade head. The airflow passes through the connecting pipe and is finally discharged at high speed from the exhaust hole at the rear of the casing. According to Bernoulli's principle, this directional airflow will generate negative pressure (suction) at its inlet (heat dissipation hole / blade head area). This negative pressure acts directly on the friction surface area of ​​the moving and fixed blades, "simultaneously carrying the hair fragments accumulated at the friction surface of the fixed and moving blades," achieving directional negative pressure suction in areas that traditional cleaning methods cannot reach. The hair fragments are discharged from the machine with the airflow, completing real-time and automatic cleaning. Attached Figure Description

[0019] Figure 1 This is a first-view structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the second perspective structure of the present invention; Figure 3 This is a schematic diagram of the third-view structure of the present invention; Figure 4 This is a schematic diagram of the internal component structure of the housing of the present invention; Figure 5 This is a schematic diagram of the connection between the moving blade and the fixed blade of the present invention; Figure 6 This is a schematic diagram of the connection between the connecting tube and the inner shell of the present invention; Figure 7 This is a schematic diagram of the inner shell top component structure of the present invention; Figure 8 This is a schematic diagram of the internal component structure of the inner shell of the present invention; Figure 9 This is a schematic diagram of the connection between the sliding frame and the slider of the present invention; Figure 10 This is a first-view exploded view of the sliding frame and slider of the present invention; Figure 11 This is a second-view exploded view of the sliding frame and slider of the present invention.

[0020] Reference numerals: 11. Housing; 12. Control switch; 13. Vent; 14. Power cord; 15. Fixed blade; 16. Moving blade; 17. Connecting pipe; 18. Buffer layer; 19. Hexagonal hole; 110. Miniature fan; 111. Inner shell; 112. Heat dissipation hole; 2. Sliding shear assembly; 21. Worm gear; 22. Worm; 23. First bevel gear; 24. Second bevel gear; 25. Motor; 26. Partition plate; 27. Sliding frame; 28. Slider; 29. ​​U-shaped groove; 210. Limiting post; 211. Snap roller; 212. Fixing rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] like Figures 1-8 As shown in this embodiment, a self-cleaning electric hair clipper includes a housing 11 with a hollow internal structure. Both ends of the housing 11 are detachable. A control switch 12 is mounted on the surface of the housing 11. The control switch 12 is a conventional touch-sensitive physical button type with a built-in voltage regulator module. A buffer layer 18 is adhered to the inner wall of the housing 11. The buffer layer 18 is made of highly elastic silicone material, which can effectively absorb the high-frequency vibration generated by the motor 25 during operation, reducing the overall operating noise. The buffer layer 18 has several hexagonal holes 19 inside and has a T-shaped hollow structure. The inner shell 111 is bonded to the inside of the buffer layer 18. A T-shaped hollow silicone buffer layer 18 with hexagonal holes 19 is set between the outer shell 11 and the inner shell 111. The high elasticity silicone material can effectively absorb the high-frequency vibration generated by the operation of the motor 25 and the transmission structure. Combined with the shock-absorbing cavity formed by the hexagonal holes 19 and the hollow structure, the transmission of vibration to the outer shell 11 is greatly reduced. This not only reduces the overall operating noise of the machine, but also reduces the numbness in the hands of the barber caused by holding it for a long time, significantly improving the comfort of long-term continuous operation. The inner shell 111 is hollow inside, and a fixed blade 15 is fixedly connected to one side of the inner shell 111.

[0023] like Figures 1-9As shown, a movable blade 16 is slidably connected to the top surface of the fixed blade 15. The compound shearing action of the movable blade 16 creates a dynamic shearing effect between the blades of the fixed blade 15 and the movable blade 16. Compared with the traditional single linear reciprocating shearing, the shearing is cleaner and completely solves the problems of hair pulling and hair jamming. It can achieve uniform and precise shearing for both fine and soft hair and coarse and hard hair. The shearing accuracy and smoothness are greatly improved. Real-time cleaning of broken hair reduces abrasive wear between the blades, and simultaneous real-time cooling prevents the blade head from softening due to high-temperature annealing. Under the dual effect, the blade head dulling is greatly delayed, and the blade head replacement cycle is extended. At the same time, the stable load prevents the motor 25 from overloading and jamming, effectively extending the service life of the motor 25 and reducing the failure rate of the whole machine. The inner shell 111 is internally equipped with Equipped with a sliding shearing assembly 2, this assembly reduces the vertical compression of hair fragments and lowers the likelihood of hair fragments embedding into the friction surfaces of the fixed blade 15 and the moving blade 16. The sliding shearing assembly 2 includes a motor 25 fixedly installed inside the inner shell 111. Partitions 26 are provided on both sides of the motor 25, and the partitions 26 are arranged in a U-shape. One side of the partition 26 is slidably connected to the sliding frame 27, and the partitions 26 are parallel to the sliding frame 27. Connecting pipes 17 are fixedly connected to both sides of the partitions 26. When the airflow inside the connecting pipe 17 is discharged through the tail of the connecting pipe 17 and the exhaust hole 13, it simultaneously carries the hair fragments accumulated at the friction surfaces of the fixed blade 15 and the moving blade 16, thereby achieving directional negative pressure suction of the shearing area where the fixed blade 15 and the moving blade 16 are in contact.

[0024] like Figures 1-10As shown, a power cord 14 is installed at the end of the housing 11 away from the fixed blade 15, and the end of the connecting pipe 17 facing the sliding frame 27 is parallel to the partition 26. The U-shaped partition 26, together with the connecting pipe 17, forms a closed directional airflow channel, which not only prevents airflow turbulence inside the housing 11, improving heat dissipation and suction efficiency, but also isolates hair clippings and dust from entering the motor 25 and transmission structure area, reducing wear and tear and failure of internal parts, and lowering later maintenance costs. Two miniature fans 110 are installed at the heat dissipation holes 112 on the inner wall of the partition 26. The motor 25 and the miniature fans 110 are electrically connected to the control switch 12 through wires. The motor 25 and the miniature fans 110 are connected to the power cord 14 by wires. After the power cord 14 is connected to the external 220V AC power, it is converted to 12V DC power by the voltage regulator module built into the control switch 12, which synchronously supplies the motor 25 and the miniature fans 110 for stable operation. The 110 is arranged in a mirror symmetry and is used to dissipate heat from the motor 25. The micro fan 110 guides the heat generated by the motor 25 into the connecting pipe 17 through the airflow channel of the heat dissipation hole 112, and then discharges it to the outside of the housing 11 from the tail of the connecting pipe 17 and the exhaust hole 13. The housing 11 has exhaust holes 13 through the two sides away from the fixed blade 15, and the exhaust holes 13 are connected to the connecting pipe 17. The connecting pipe 17 and the moving blade 16 have heat dissipation holes 112 through the connecting pipe 17 and the moving blade 16, and an airflow channel is formed between the connecting pipe 17 and the moving blade 16 through the heat dissipation holes 112. The output end connecting shaft of the motor 25 is rotatably connected to the inner housing 111. The inner housing 111 has a sliding frame 27 slidably connected to the side away from the motor 25, and the inner housing 111 limits the sliding frame 27. At the same time, a slider 28 is slidably connected inside the sliding frame 27. Several limit posts 210 arranged linearly and equally spaced are fixedly connected to the middle of the top surface of the slider 28.

[0025] like Figures 1-11As shown, the chuck 211 meshes with several limit posts 210 one by one, so that when the chuck 211 rotates, it meshes with the limit posts 210 one by one, driving the slider 28 to slide within the sliding frame 27. The moving blade 16 is fixedly installed at the end of the slider 28 away from the motor 25. The sliding direction of the slider 28 and the sliding direction of the sliding frame 27 are arranged in a cross shape. A U-shaped groove 29 is opened on the top surface of the slider 28, and a fixing rod 212 is set in the U-shaped groove 29. The fixing rod 212 is connected and fixed at the bottom center of the chuck 211, and the fixing rod 212 is slidably connected to the slider 28. The sliding frame 27 limits the slider 28. At the same time, a second bevel gear 24 is fixedly connected to the through end of the output shaft of the motor 25. The forced convection airflow generated by the micro fan 110 directly covers the area of ​​the motor 25, which can reduce the operating output of the motor 25. The generated heat is quickly dissipated, significantly reducing the operating temperature of the motor 25, preventing the motor 25 from aging due to high temperature, and significantly extending the service life of the motor 25. On the other hand, the airflow channel is close to the blade head area, which can simultaneously remove the heat generated by the high-speed friction between the fixed blade 15 and the moving blade 16, reducing the temperature rise of the blade head, preventing the blade head from burning the scalp during haircuts, and reducing the wear of the blade edge due to high temperature, delaying the dulling of the blade head, and extending the replacement cycle of the blade head. The first bevel gear 23 is driven and connected to one side of the second bevel gear 24, and the worm gear 22 is fixedly connected to one side of the first bevel gear 23. The worm gear 22 is rotatably connected to the inner shell 111, and the end of the worm gear 22 away from the first bevel gear 23 is driven and connected to the worm wheel 21. The connecting shaft of the worm wheel 21 is rotatably connected to the inner shell 111, and the connecting end of the worm wheel 21 is fixedly connected to the through end of the connecting shaft.

[0026] The working principle of this embodiment is as follows: First, the power cord 14 is connected to 220V AC power. The barber operates the control switch 12. The voltage regulator module in the control switch 12 outputs 12V to DC power to drive the motor 25 and start the miniature fan 110 at the same time.

[0027] After the drive motor 25 starts, its output shaft meshes with the first bevel gear 23 through the second bevel gear 24, transmitting power to the worm gear 22. This causes the worm gear 22 to drive the worm wheel 21 to rotate. The rotation of the worm wheel 21 drives the chuck 211 to rotate synchronously, which in turn causes the chuck 211 to mesh with several limit posts 210 in sequence. This causes the slider 28 to slide back and forth on the sliding frame 27. At the same time, the fixed rod 212 at the bottom of the chuck 211 slides back and forth synchronously in the slot 29. This causes the slider 28 to slide perpendicular to the sliding frame 27, while the sliding frame 27 also moves synchronously back and forth axially in the inner shell 111. This causes the moving blade 16 connected to one side of the slider 28 to move with extension and reciprocating lateral movements, forming a high-frequency shearing action with the fixed blade 15. This makes the contact and friction between the moving blade 15 and the fixed blade 16 no longer a simple planar reciprocating motion, but a periodically changing pressure and slight lateral misalignment. This causes some broken hairs to be "shaked" out or "carried" out of the critical area during the shearing process.

[0028] The remaining hair clippings at the fixed blade 15 and the moving blade 16 are cooled by the operation of the miniature fan 110 to dissipate heat from the motor 25. The airflow passes through the heat dissipation hole 112 between the two miniature fans 110 and is discharged along the exhaust hole 13. The resulting negative pressure zone draws some of the hair clippings at the fixed blade 15 and the moving blade 16 into the connecting pipe 17 and discharges them from the connecting pipe 17 to the outside of the whole device. This achieves the directional collection and timely cleaning of hair clippings, eliminating the risk of jamming and overheating caused by the accumulation of hair clippings in traditional hair clippers, and bringing the cutting accuracy and operation continuity to a new level.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A self-cleaning electric hair clipper, comprising a housing (11) with a hollow internal structure, wherein both ends of the housing (11) are detachable, and a control switch (12) is mounted on the surface of the housing (11), characterized in that: The inner wall of the housing (11) is bonded with a buffer layer (18), and the buffer layer (18) has several hexagonal holes (19) inside. The buffer layer (18) is also T-shaped hollow. The inner shell (111) is bonded to the inside of the buffer layer (18), and the inner shell (111) is hollow. A fixed blade (15) is fixedly connected to one side of the inner shell (111), and a movable blade (16) is slidably connected to the top surface of the fixed blade (15). The inner shell (111) is equipped with a sliding shearing assembly (2) to reduce the vertical squeezing effect on the hair fragments and reduce the friction surface of the hair fragments embedded in the fixed blade (15) and the moving blade (16).

2. The self-cleaning electric hair clipper according to claim 1, characterized in that, The sliding shear assembly (2) includes a motor (25) installed and fixed inside the inner shell (111), and the output end connecting shaft of the motor (25) is rotatably connected through the inner shell (111). At the same time, a second bevel gear (24) is fixedly connected through the output end connecting shaft of the motor (25). A first bevel gear (23) is driven to one side of the second bevel gear (24), and a worm (22) is fixedly connected to one side of the first bevel gear (23). The worm (22) is rotatably connected through the inner shell (111), and a worm wheel (21) is driven to the end of the worm (22) away from the first bevel gear (23). The connecting shaft of the worm wheel (21) is rotatably connected through the inner shell (111), and a chuck (211) is fixedly connected through the connecting shaft of the worm wheel (21).

3. The self-cleaning electric hair clipper according to claim 2, characterized in that, The inner shell (111) has a sliding frame (27) slidably connected to the side away from the motor (25), and the inner shell (111) limits the sliding frame (27). At the same time, a slider (28) is slidably connected inside the sliding frame (27), and the sliding frame (27) limits the slider (28).

4. A self-cleaning electric hair clipper according to claim 3, characterized in that, The sliding direction of the slider (28) is arranged in a cross shape with the sliding direction of the sliding frame (27). A groove (29) is opened on the top surface of the slider (28), and a fixing rod (212) is provided in the groove (29). The fixing rod (212) is connected and fixed at the bottom center of the chuck (211), and the fixing rod (212) is slidably connected to the slider (28).

5. A self-cleaning electric hair clipper according to claim 4, characterized in that, The top surface of the slider (28) is fixedly connected with several limit posts (210) arranged linearly and equally. The chuck (211) meshes with the limit posts (210) one by one, so that when the chuck (211) rotates, it meshes with the limit posts (210) one by one, causing the slider (28) to slide in the sliding frame (27). The moving blade (16) is fixedly installed at the end of the slider (28) away from the motor (25).

6. A self-cleaning electric hair clipper according to claim 4, characterized in that, The motor (25) is provided with partitions (26) on both sides, and the partitions (26) are U-shaped. One side of the partitions (26) is slidably connected to the sliding frame (27), and the partitions (26) are parallel to the sliding frame (27). The two sides of the partitions (26) are fixedly connected with connecting pipes (17), and the end of the connecting pipe (17) facing the sliding frame (27) is parallel to the partitions (26). The housing (11) is provided with exhaust holes (13) on both sides away from the fixed blade (15), and the exhaust holes (13) are connected to the connecting pipes (17). The connecting pipes (17) and the moving blade (16) are provided with heat dissipation holes (112), and the connecting pipes (17) and the moving blade (16) form an airflow channel through the heat dissipation holes (112).

7. A self-cleaning electric hair clipper according to claim 6, characterized in that, Two miniature fans (110) are installed at the heat dissipation holes (112) on the inner wall of the partition (26), and the two miniature fans (110) are arranged in a mirror symmetrical manner to dissipate heat and cool down the motor (25). The miniature fans (110) guide the heat generated by the motor (25) into the connecting pipe (17) through the airflow channel of the heat dissipation holes (112), and then discharge it to the outside of the housing (11) from the tail of the connecting pipe (17) and the exhaust hole (13).

8. A self-cleaning electric hair clipper according to claim 7, characterized in that, When the airflow inside the connecting pipe (17) is discharged through the tail of the connecting pipe (17) and the exhaust hole (13), it simultaneously carries the hair fragments accumulated at the friction surface of the fixed blade (15) and the moving blade (16), thereby achieving directional negative pressure suction of the shearing area where the fixed blade (15) and the moving blade (16) are in contact. A power cord (14) is installed at the end of the housing (11) away from the fixed blade (15).

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