CN113478527B

CN113478527B - Hair shearing device

Info

Publication number: CN113478527B
Application number: CN202110680964.5A
Authority: CN
Inventors: 范亚华; 刘堉; 范德强
Original assignee: Shenzhen Dogcare Innovation and Technology Co Ltd
Current assignee: Shenzhen Dogcare Innovation and Technology Co Ltd
Priority date: 2021-01-26
Filing date: 2021-06-18
Publication date: 2023-03-24
Anticipated expiration: 2041-06-18
Also published as: CN113478527A; CN215202087U

Abstract

The invention relates to a hair cutter, and belongs to the field of pet supplies. The shearing device comprises a main body and a cutter head component, wherein a motor is arranged in the main body, and an eccentric shaft of the motor extends out of the front end of the main body; the cutter head component comprises a heat dissipation device, a static blade and a movable cutter component; the heat dissipation device comprises a heat dissipation plate and a mounting structure, wherein an accommodating cavity which is communicated up and down is formed in the front side of the mounting structure; the static blade is fixed on a bottom plate of the mounting structure; the movable cutter component comprises a torsion spring, a movable cutter seat and a movable cutter blade, the movable cutter blade is fixed on the movable cutter seat, a connecting structure is arranged at the rear end of the movable cutter seat, the movable cutter component is arranged in the accommodating cavity, and the movable cutter blade is contacted with the static cutter blade; one end of the torsion spring is fixed on the mounting structure, and the other end of the torsion spring is fixed on the movable blade; the tool bit assembly is fixed at the front end of the main body, and the eccentric shaft is movably matched with the connecting structure of the movable tool apron. The pet head assembly has the beneficial effects that the structure of the tool bit assembly is simplified, the heat dissipation is good, the pet can not feel uncomfortable or even be scalded due to overheating of the tool bit, the fitting degree of the pet is improved, and the user experience is better.

Description

Hair shearing device

Technical Field

The invention relates to the technical field of pet supplies, in particular to a shearing device.

Background

In the process of raising pets, people usually need to cut hair for the pets regularly for the health of the pets and making the pets more lovely, so that the hair cutter becomes an essential tool for raising the pets.

The present commonly used hair clipper is mostly electronic hair clipper, and it includes fuselage main part and tool bit subassembly, is equipped with the motor in the fuselage main part, can drive the electric push head action of locating in the tool bit subassembly. Because the friction of static blade and movable blade leads to the temperature to rise in the electric hair clipper in operation process, consequently, need set up heat abstractor on the tool bit subassembly. However, in the prior art, the heat dissipation device is disposed on the tool rest of the tool bit, which not only increases the complexity and cost of the tool bit structure, but also has a small contact area with the blade and low heat conduction efficiency, and thus cannot achieve a good heat dissipation effect. In addition, due to the complex structure of the cutter head in the prior art, the installation of other auxiliary elements such as a lighting lamp on the hair cutter is not facilitated.

Disclosure of Invention

Technical problem to be solved

In view of the above disadvantages and shortcomings of the prior art, the present invention provides a hair clipper, which solves the technical problems of complicated structure and poor heat dissipation of the cutter head of the prior hair clipper.

(II) technical scheme

In order to achieve the purpose, the invention adopts the main technical scheme that:

in a first aspect, embodiments of the present invention provide a hair clipper, including a main body and a cutter head assembly fixed to the main body; a motor is arranged in the main body, and an eccentric shaft of the motor extends out of the front end of the main body;

the cutter head component comprises a heat dissipation device, a static blade and a movable blade component;

the heat dissipation device comprises a heat dissipation plate and a mounting structure, the mounting structure and the heat dissipation plate are connected into a whole, a bottom plate is arranged on the rear side of the mounting structure, and an accommodating cavity which is communicated up and down is arranged on the front side of the mounting structure;

the static blade is fixed on a bottom plate of the mounting structure;

the movable blade assembly is arranged in the accommodating cavity and comprises a torsion spring, a movable blade holder and a movable blade, the movable blade is fixed at the front end of the movable blade holder, an upward convex connecting structure is arranged at the rear end of the movable blade holder, and a tooth comb of the movable blade is in contact with a tooth comb of the fixed blade;

the torsion spring is fixed on the mounting structure, two ends of the torsion spring are respectively provided with a pressure lever, and the rear end of each pressure lever is fixed on the movable blade to enable the tooth comb of the movable blade to be in pressing contact with the tooth comb of the static blade;

the cutter head assembly is fixed at the front end of the main body, the eccentric shaft is movably matched with the connecting structure of the movable cutter holder, and the movable cutter holder is driven to swing left and right under the action of the motor, so that the shearing action of the movable cutter blade and the static cutter blade is realized.

Optionally, a main control circuit board electrically connected with the motor is further arranged in the main body;

the main control circuit board is provided with a power compensation module, and the power compensation module controls the output power of the motor according to the resistance of the cutter head assembly during shearing.

Optionally, an LED lighting lamp is arranged at the front end of the main body, and a lamp control circuit board connected with the LED lighting lamp is further arranged in the main body;

the LED illuminating lamp is characterized in that the lamp control circuit board is provided with a brightness adjusting module and an environment brightness induction module, and the brightness adjusting module automatically adjusts the brightness of the LED illuminating lamp according to brightness data induced by the environment brightness induction module.

Optionally, a display module is further arranged on the lamp control circuit board, the display module includes a plurality of LED patch lamps, and the LED patch lamps display at least one character, graphic or symbol representing the working state of the hair clipper under the control of the lamp control circuit board;

the casing of main part corresponds display module assembly is equipped with display panel, display panel is last correspond characters, figure or symbol are equipped with light-transmitting structure.

Optionally, the lamp control circuit board is further provided with a working state indicator lamp and a blade life indicator lamp;

all be equipped with the leaded light post on operating condition pilot lamp and the blade life-span pilot lamp, the shell corresponds the leaded light post is equipped with the light trap.

Optionally, an intelligent mode key is arranged on the lamp control circuit board, and the intelligent mode key is used for sending a signal to the main control circuit board to start an intelligent selection function of the trimming mode; or

The main control circuit board is provided with a gear switch, and the gear switch is used for turning on or off the shearing device and adjusting the work output power of the gear control motor; or

The main control circuit board is also provided with a cutter bit resetting switch, and the cutter bit resetting switch is used for resetting the service life of the cutter bit assembly displayed on the display module after the cutter bit assembly is replaced or resetting the display color of the blade life indicator lamp;

the casing of main part corresponds intelligent mode button, gear switch and tool bit reset switch all are equipped with the key-press hole.

Optionally, the heat dissipation plate is plate-shaped, and a heat dissipation structure and a light transmission structure are arranged on the front side surface of the heat dissipation plate;

the upper end of the heat dissipation plate inclines towards the main body, and the left side wall and the right side wall of the heat dissipation plate extend backwards to be connected into a whole to form an installation structure with an open upper part.

Optionally, the mounting structure includes a limiting portion and a fixing portion disposed on the bottom plate;

the fixing part is provided with two limiting grooves with openings facing the heat dissipation plate, and a clamping groove is arranged between the two limiting grooves;

the limiting part is arranged on the front side of the fixing part;

the torsion spring comprises two torsion parts, one ends of the two torsion parts close to each other are connected through a U-shaped rod, the ends of the two torsion parts far away from each other are provided with the pressure rods, and the pressure rods are perpendicular to the two torsion parts;

the two torsion portions are arranged in the two limiting grooves respectively, the U-shaped rod is clamped into the clamping groove, the two pressing rods are located on two sides of the limiting portions respectively, and the displacement of the left-right swinging of the pressing rods is limited by the limiting portions.

Optionally, a tool bit fixing plate is further arranged on the outer side of the front end of the main body, elastic pieces are arranged on two sides of the tool bit fixing plate, a through hole is formed between the two elastic pieces, and the eccentric shaft penetrates out of the through hole and is movably matched with the connecting structure of the movable tool apron;

and the mounting structure is also provided with an elastic sheet clamping groove matched with the elastic sheet.

Optionally, the upper surface of the stationary blade is attached to the bottom surface of the mounting structure, and both the upper surface of the stationary blade and the bottom surface of the mounting structure are smooth planes.

(III) advantageous effects

The invention has the beneficial effects that:

1. compared with the prior art, the fixed blade and the movable blade are directly arranged on the heat dissipation device, so that the contact area between the blades and the heat dissipation device is increased, a good heat dissipation function is realized, a tool rest of a tool bit assembly in the prior art is omitted, the structure of the tool bit assembly is simplified, and the production cost is reduced;

2. the main body and the cutter head component are fixed by the elastic sheet, so that the disassembly is convenient;

3. the LED illuminating lamp and the lamp control circuit board are arranged, so that the hair cutter can be conveniently used under the condition of dark ambient light, and the brightness of the LED illuminating lamp can be adjusted according to the ambient brightness;

4. a display module or an indicator light is arranged, and the working state of the shearing device can be displayed through characters, symbols or patterns and the like;

5. different trimming modes are set, and a power compensation module is arranged on the main control circuit board, after the trimming mode intelligent selection function is started, the power compensation module can adjust the power of the motor in real time according to the load of the cutter head assembly, so that the problems of increased battery energy loss, cutter head assembly service life loss and increased friction heat caused by idle work when the motor works at a high power and a high rotating speed under a low load are solved, and meanwhile, the problem of unsmooth trimming caused by the fact that the motor works at a low power and a low rotating speed under a high load is solved.

Drawings

Fig. 1 is a schematic perspective view of an embodiment 1 of a hair clipper of the present invention;

FIG. 2 is an exploded view of the shearing apparatus of FIG. 1;

FIG. 3 is a perspective view of the front end of the cutter head assembly of FIG. 1;

FIG. 4 is a perspective view of the rear end of the cutter head assembly of FIG. 3;

FIG. 5 is a side schematic view of the cutter head assembly of FIG. 3;

FIG. 6 is an exploded view of the cutter head assembly of FIG. 4;

fig. 7 is a perspective view of embodiment 2 of the shearing apparatus of the present invention;

FIG. 8 is an exploded view of the shearing apparatus of FIG. 7;

FIG. 9 is a graph of the relationship between the operating time and the temperature of the cutter head of the charging hair clipper of the prior art;

FIG. 10 is a graph of operating time versus cutter head temperature for a prior art electric hair trimmer;

fig. 11 is a graph of the operating time of the hair clipper of the present invention versus cutter head temperature.

[ description of reference ]

10: a cutter head assembly; 100: a heat sink; 110: a heat dissipation plate; 120: a mounting structure; 121 a position limiting part; 122: a fixed part; 1221: a limiting groove; 123: an accommodating chamber; 124: buckling; 200: a stationary blade; 300: a movable knife component; 310: a movable cutter seat; 320: a movable blade; 321: a compression bar fixing hole; 330: a torsion spring; 331: a torsion portion; 332: a U-shaped rod; 333: a pressure lever; 40: a main body; 410: a cutter head fixing plate; 411: a spring plate; 420: a motor; 421: an eccentric shaft; 430: an LED lighting lamp; 440: a lamp control circuit board; 441: a display module; 442: an intelligent mode key; 450: a main control circuit board; 451: a gear switch; 452: a cutter head reset switch; 453: a charging plug board; 460: a battery; 471 of upper cover; 4711: a display panel; 472: a lower cover; 473: a handle shell; 481: a blade life indicator light; 482: an electric quantity indicator light; 483: and an operating mode indicator light.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings. Where the terms "forward", "rearward", "above", "below", and the like are used herein with reference to the orientation of FIG. 1, the direction toward the bit assembly is defined as "forward" and the direction toward the body 40 is defined as "rearward".

The embodiment of the invention provides a hair cutter, which comprises a main body and a cutter head component fixed on the main body; the front end of the main body is provided with an LED illuminating lamp, a motor is arranged in the main body, and an eccentric shaft of the motor extends out of the front end of the main body;

the heat dissipation device comprises a heat dissipation plate and a mounting structure, the mounting structure is connected with the heat dissipation plate, a bottom plate is arranged on the rear side of the mounting structure, and an accommodating cavity which is communicated up and down is arranged on the front side of the mounting structure;

the static blade is fixed on a bottom plate of the mounting structure;

the torsion spring is fixed on the mounting structure, two ends of the torsion spring are respectively provided with a pressure lever, and the rear end of each pressure lever is fixed on the movable blade to press and contact the tooth comb of the movable blade with the tooth comb of the static blade;

the cutter head assembly is fixed at the front end of the main body, the eccentric shaft is movably matched with the connecting structure of the movable cutter holder, and the movable cutter holder is driven to swing left and right under the action of the motor, so that the shearing action of the movable blade and the fixed blade is realized.

In the hair clipper of this embodiment, the tool bit subassembly will quiet blade with move tool bit subassembly direct mount on heat abstractor, for prior art, it has not only increased blade and heat abstractor's area of contact, realizes good heat dissipation function, has still saved the knife rest of prior art tool bit subassembly, has also reduced manufacturing cost when having simplified tool bit subassembly's structure to the LED light that sets up, the convenience uses the hair clipper under the darker condition of ambient light.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

Example 1:

the hair clipper of the present embodiment with reference to fig. 1 to 6 includes a body 40 and a cutter head assembly 10 fixed to a front side of the body 40.

As shown in fig. 3 to 6, the cutter head assembly 10 includes a heat sink 100, a stationary blade 200, and a moving blade assembly 300.

The heat sink 100 includes a heat sink plate 110 and a mounting structure 120. The heat dissipation plate 110 has a plate shape, and the upper end thereof is inclined toward the body 40, i.e., inclined rearward. The front side surface of the heat dissipation plate 110 is provided with a heat dissipation structure and a light transmission structure. In practical application, in order to improve the heat dissipation effect, the heat dissipation structure may be a wave-shaped or strip-shaped heat dissipation fin. Open slots can be arranged among the radiating fins to form a light-transmitting structure.

The left and right sidewalls of the heat sink 110 extend rearward to be integrally connected to form an open-top mounting structure 120. The mounting structure 120 has a bottom plate that is not completely closed and is located at the rear side of the mounting structure 120, so that a vertically penetrating receiving cavity 123 is formed at the front side of the mounting structure 120. A portion of the moving blade assembly 300 is inserted into the receiving cavity 123 from below the heat sink 100.

In one possible embodiment, the heat dissipation plate 110 and the mounting structure 120 may be integrally formed by die-casting an aluminum alloy.

The mounting structure 120 further includes a stopper portion 121 and a fixing portion 122 provided on the base plate. The fixing portion 122 is provided with two limiting grooves 1221 opened toward the heat radiating plate 100, and the two limiting grooves 1221 are arranged in a left-right symmetrical manner and spaced from each other. The limiting portion 121 is disposed at the front side of the fixing portion 122, and is open toward the fixing portion 122, and is U-shaped as a whole. The limiting part 121 comprises a limiting seat and limiting arms located on the left side and the right side of the limiting seat, and the limiting arms are in one-to-one correspondence with the limiting grooves 1221 of the fixing part 122.

In addition, the rear end and the left and right sides of the mounting structure 120 may be provided with a snap 124 for detachably fixing the heat sink 100 to the body 40 of the hair clipper. The mounting structure 120 is further provided with a spring catch that mates with a spring 411 (described below) on the bit mount plate 410.

The front end of the stationary blade 200 is provided with a comb. The upper surface of the stationary blade 200 is a smooth plane, and the lower surface is provided with a heat dissipation structure. The stationary blade 200 is secured to the bottom of the mounting structure 120. Preferably, the bottom of the mounting structure 120 is a smooth plane so that the upper surface of the stationary blade 200 abuts against the bottom surface of the mounting structure 120.

The moving blade assembly 300 includes a stationary member and a movable member. The movable member includes a movable blade holder 310 and a movable blade 320, and the stationary member includes a torsion spring 330. The movable knife holder 310 is provided with a movable blade fixing plate, the rear end of the movable blade fixing plate protrudes upwards to form a protruding portion, the protruding portion is inserted into the accommodating cavity 123 from the lower side of the mounting structure 120, the rear side of the protruding portion is provided with a connecting structure, and the connecting structure is provided with an eccentric shaft hole (or an eccentric shaft mounting groove) for being movably matched with the eccentric shaft 421. The movable blade 320 is fixed at the front end of the movable blade fixing plate through screws, and the front end of the tooth comb of the movable blade 320 extends out of the front end of the movable blade fixing plate to be in contact with the tooth comb of the stationary blade 200. A pressure bar fixing hole 321 is arranged at the rear of the tooth comb of the movable blade 320. The torsion spring 330 is a bilateral symmetry structure, and includes two torsion portions 331, wherein the ends of the two torsion portions 331 close to each other are connected by a U-shaped rod 332, and the ends far away from each other are provided with a pressing rod 333.

The two torsion portions 331 of the torsion spring 330 are fixed in the limiting grooves 1221 of the fixing portion 122 in a one-to-one correspondence manner, and the hooks at the ends of the pressing rods 333 are placed in the pressing rod fixing holes 321 on the movable blade 320. Under the action of the torsion spring 330, the teeth comb of the movable blade 320 is in pressing contact with the teeth comb of the stationary blade 200, so that the movable blade 320 can be matched with the stationary blade 200 to realize shearing action while moving left and right under the driving of the movable blade holder 310.

In this embodiment, the movable blade assembly 300 is disposed in the accommodating cavity 123 of the mounting structure 120, the movable blade 320 contacts the stationary blade 200, and the torsion spring 330 presses the movable blade 320 against the stationary blade 200 (i.e., the torsion spring 330 prevents the movable blade assembly 300 from moving up and down), so that the movable blade assembly 300 is movably fixed on the mounting structure 120 under the combined action of the torsion spring 330 and the stationary blade 200, and can swing left and right under the driving of the eccentric shaft 421. In order to enable the pressing rod 333 of the torsion spring 330 to press the movable blade 320, a clamping groove is arranged between the two limiting grooves 1221 of the fixing portion 122, when the two torsion portions 331 are assembled, the two torsion portions 331 are respectively arranged in the corresponding limiting grooves 1221, the U-shaped rod 332 is clamped into the clamping groove, the torsion portions 331 can be prevented from rotating, and therefore the pressing rod 333 can press the movable blade 320 all the time. Meanwhile, the limiting portion 121 can limit the left and right displacement of the torsion spring 330, so as to limit the displacement of the tool holder 310 moving in the left and right directions.

In some embodiments, the fixing portion 122 and the torsion spring 330 may also adopt other structures according to actual needs, as long as the torsion spring 330 can press the movable blade 320.

In some embodiments, the static blade 200 can be fixed to the bottom of the heat sink 100 in various ways, such as by screws or snaps, so long as the upper surface of the static blade 200 is attached to the lower surface of the heat sink 100 and can be detached.

In this embodiment, the contact surfaces of the stationary blade 200 and the mounting structure 120 are both set to be smooth planes, so that the contact area between the stationary blade 200 and the heat dissipation device 100 is increased, and the heat dissipation structure is disposed on the lower surface of the stationary blade 200, so that the heat dissipation effect is improved. In some embodiments, in order to further improve the heat dissipation effect, a layer of heat-conducting glue may be filled between the stationary blade 200 and the mounting structure 120.

The cutter head component of the embodiment directly installs the static blade and the movable blade component on the heat dissipation device, and compared with the prior art, the cutter head component not only increases the contact area of the blade and the heat dissipation device, realizes a good heat dissipation function, but also saves a cutter frame of the cutter head component in the prior art, and reduces the production cost while simplifying the structure of the cutter head component.

With continued reference to fig. 1 and 2, the main body 40 includes a housing, a bit fixing plate 410, a motor 420, an LED lighting lamp 430, a lamp control circuit board 440, a display module 441, a main control circuit board 450, and a battery 460.

The bit fixing plate 410 is fixed to the front end of the motor 420. Both sides of the tool bit fixing plate 410 are provided with elastic pieces 411, and the elastic pieces 411 extend out in the direction away from the motor 420. The spring 411 is fastened with a spring slot provided on the mounting structure 120, so as to fix the cutter head assembly on the front side of the main body 40.

The blade fixing plate 410 is further provided with a through hole between the two elastic sheets 411, and the eccentric shaft 421 of the motor 420 penetrates through the through hole.

The main control circuit board 450 is fixed to the rear of the motor 420 and electrically connected to the motor 420. The main control circuit board 450 is used for controlling the motor 420 and the lamp control circuit board 440. The upper side of the main control circuit board 450 is provided with a position switch 451. The inhibitor switch 451 is used to turn the hair clipper on or off, and may also be used to select an operating mode of the hair clipper (e.g., a silent operating mode or a strong operating mode). The inhibitor switch 451 may be a push switch or a slide switch. The specific setting can be according to needs.

In practical applications, the inhibitor switch 451 can be electrically connected to the main control circuit board 450 through an inhibitor switch elastic sheet (e.g., gold plated beryllium bronze), so as to realize the functions of switching and adjusting the gear.

In practical applications, the hair clipper can realize an automatic gear shifting function in an intelligent mode (described below), and the power compensation module can adjust the power of the motor 420 to enter different gears in real time according to the load of the cutter head assembly, for example, the first gear is a silent operation mode, the power of the motor 420 is small, the second gear is a powerful operation mode, and the power of the motor 420 is large. When exiting the smart mode, if the shift switch 451 stays at first gear, the motor 420 enters a silent operation mode; if the range switch 451 is in second gear, the motor 420 enters a powerful operation mode.

The rear end of the main control circuit board 450 is further provided with a tool bit resetting switch 452, and the tool bit resetting switch 452 is used for resetting the service life of the tool bit assembly 10 displayed on the display module 441 or resetting the display color of the blade life indicator light 481 (see fig. 8) after the tool bit assembly 10 is replaced.

In practical applications, the LED lighting lamp 430 can also be controlled by the tool bit resetting switch 452. For example, clicking the tool bit reset switch 452 turns the LED illumination lamp 430 on or off, and pressing the tool bit reset switch 452 for a long time (e.g., 5 seconds) enables the reset function.

In practical application, the blades (the static blade and the movable blade) of the hair clipper have certain service life. When the blade reaches the upper limit of the service life after long-time use, the blade is seriously worn, the cutter head assembly 10 or the blade needs to be replaced, and after the blade is replaced, the cutter head resetting switch 452 needs to be used for resetting the service life of the cutter head assembly 10 or the blade, the working time of the blade is counted again, the service life of the cutter head assembly 10 displayed on the display module 441 is reset, or the display color of the blade life indicator 481 is reset.

In practical applications, the main control circuit board 450 may be provided with a power compensation module, which controls the power of the motor 420 by sensing the resistance of the blade during the cutting action (i.e., adjusting the power of the motor 420 in real time according to the load of the cutter head assembly). For example, after the intelligent mode selection function is started, when the hair is thick, the resistance is increased, the power compensation module controls the working voltage of the motor to be 3.4V, the output power of the motor 420 is increased, and the motor enters a powerful working mode; when the hair is less, the resistance is reduced, the power compensation module controls the working voltage of the motor to be 3.0V, the output power of the motor 420 is reduced, and the mute working mode is entered. The power compensation module avoids the problems of increased energy loss of the battery 460, loss of service life of the cutter head assembly 10 and increased frictional heat caused by idle work of the motor 420 due to high-power and high-speed operation under low load, and also avoids the problem of unsmooth trimming caused by low-power and low-speed operation of the motor 420 under high load.

The lamp control circuit board 440 and the main control circuit board 450 can be electrically connected through an 8P connection line. The LED illumination lamp 430 is electrically connected to the lamp control circuit board 440. The lamp control circuit board 440 can further comprise an ambient brightness sensing module and a brightness adjusting module, the ambient brightness sensing module can automatically sense the brightness data of the environment, and the brightness adjusting module adjusts the brightness of the LED lighting lamp 430 according to the brightness data. The display module 441 is disposed on the lamp control circuit board 440. The display module 441 is provided with LED patch lamps arranged in a matrix, and under the control of the lamp control circuit board 440, the display module can light up different LED patch lamps to display different characters, symbols or patterns for displaying the working state of the hair cutter. An intelligent mode button (SMART button) 442 is further arranged on the lamp control circuit board 440, and the intelligent mode button 442 is arranged behind the display module 441 and used for turning on or off an intelligent mode selection function of the hair cutter.

In practical application, the characters, symbols or patterns displayed by the display module 441 can be used for displaying the battery power, the service life of the blade, the working mode and/or the temperature prompt of the cutter head.

The housing of the main body 40 includes an upper cover 471, a lower cover 472, and a handle case 473. The upper cover 471 and the lower cover 472 cooperate with each other to form a vertically closed housing. The bit mount plate 410, motor 420, and lamp control circuit board 410 are located on the front side of the housing. Wherein, the lamp control circuit board 410 is fixed on the upper cover 471 and located above the motor 420; the LED illuminating lamp 430 is fixed at the front end of the shell; the eccentric shaft 421 of the motor 420 and the elastic piece 411 of the cutter head fixing plate 410 extend out from the front end of the shell; the elastic sheet 411 is buckled with an elastic sheet clamping groove arranged on the mounting structure 120, so that the cutter head assembly 10 is fixed on the front side of the shell; the eccentric shaft 421 is inserted into the eccentric shaft hole (or eccentric shaft mounting groove) of the connecting structure of the movable blade holder 310, so as to realize the movable fit with the movable blade holder 310, and the movable blade holder 310 is driven by the motor 420 to swing left and right, so as to realize the shearing action between the movable blade 320 and the stationary blade 200. The main control circuit board 450 and the battery 460 are provided at the rear side of the housing. The battery 460 is electrically connected to the main control circuit board 450 and is disposed below the main control circuit board 450.

In practical application, the motor 420 may be fixed on a motor fixing frame, the motor fixing frame may be disposed on the lower cover 472 or the upper cover 471 according to actual requirements, the motor fixing frame may be plate-shaped, and a vibration-proof rubber ring may be disposed between the motor fixing frame and the motor 420 to reduce vibration of the motor 420 and protect the motor 420.

The upper cover 471 is provided with a display panel 4711 corresponding to the display module 441, and the display panel 4711 is provided with a light transmission structure so that characters, figures or symbol lamps on the display module 441 can be seen. The upper cover 471 is also provided with key holes corresponding to the shift switch 451 and the bit reset switch 452.

The lower cover 472 is provided with a battery compartment for placing the battery 460.

The lower cover 472 and the upper cover 471 are also provided with a snap slot corresponding to the snap 124 on the mounting portion 120. The buckle 124 is matched with the buckle slot, and the elastic sheet 411 and the elastic sheet slot on the mounting portion 120 fix the cutter head assembly 10 at the front side of the main body 40 together.

The handle case 473 is fitted over the rear of the case to facilitate grasping of the hair cutter, and has a key hole corresponding to the shift switch 451.

In practical application, the battery can be a rechargeable battery, the main control circuit board 450 is further provided with a charging plug board 453, a charging interface is arranged on the charging plug board, and the shell and the handle shell 473 are provided with charging holes corresponding to the charging interface.

In the hair clipper of this embodiment, the tool bit subassembly is with quiet blade and move tool bit subassembly direct mount on heat abstractor, and for prior art, it has not only increased blade and heat abstractor's area of contact, can realize good heat dissipation function, has still saved the knife rest of prior art tool bit subassembly, has also reduced manufacturing cost when simplifying tool bit subassembly's structure. The main body and the tool bit assembly are fixed by the elastic sheet and the buckle clamping groove, so that the tool bit assembly is convenient to disassemble; the LED illuminating lamp is arranged, so that the shearing device can be conveniently used under the condition of dark ambient light; set up the display module assembly, can show the operating condition of shearing the hair ware through characters, symbol or pattern etc..

Example 2:

the hair clipper of the embodiment is provided on the basis of the embodiment 1, and the display module in the embodiment 1 is replaced by a working state indicator light and a blade life indicator light.

Referring to fig. 7 and 8, in the present embodiment, the operation status indicator lamps include a power indicator lamp 482 and an operation mode indicator lamp 483. The power indicator 482 and the blade life indicator 481 are provided on the front side of the lamp control circuit board 440, and the operation mode indicator 483 is provided on the rear side of the lamp control circuit board 440. The operation mode indicator 483 includes a plurality of indicator lights arranged side by side, and indicates different operation modes of the hair clipper according to the number of the illuminated indicator lights, for example, when the illuminated indicator lights are few, the operation mode is indicated as a silent operation mode, and when all the indicator lights of the operation mode are illuminated, the operation mode is indicated as a strong operation mode.

In practical application, the indication meanings of the working state indicator light and the blade life indicator light 481 can be defined according to requirements, for example, the electric quantity indicator light 482 is displayed as green and always on to indicate that the battery is fully charged, green flashing is displayed to indicate that the battery is being charged, and red flashing is displayed to indicate that the electric quantity is insufficient; the blade life indicator 481 is shown as red indicating that the blade needs to be replaced, and the indicator is off indicating that the blade has not reached the end of its useful life.

In this embodiment, each indicator light is provided with a light guide pillar, and the upper cover 471 of the main body 40 is provided with a light hole corresponding to each light guide pillar.

In the hair clipper of this embodiment, the tool bit subassembly is with quiet blade and move tool bit subassembly direct mount on heat abstractor, and for prior art, it has not only increased blade and heat abstractor's area of contact, can realize good heat dissipation function, has still saved the knife rest of prior art tool bit subassembly, has also reduced manufacturing cost when having simplified tool bit subassembly's structure. The main body and the tool bit assembly are fixed by the elastic sheet and the buckle clamping groove, so that the tool bit assembly is convenient to disassemble; the LED illuminating lamp is arranged, so that the hair cutter can be conveniently used under the condition of dark ambient light; the working indicator lamp is arranged, and the working state of the shearing device can be displayed.

In practical application, the hair of the pet or the animal is long and dense, the hair clipper in the prior art is easy to clamp and cannot work normally, particularly, the temperature of the cutter head rises rapidly due to friction along with the prolonging of the operation time of the hair clipper, the pet or the animal can be scalded or even scalded, and the handle shell of the hair clipper is far away from the cutter head and has low heat conductivity, so that a person using the hair clipper cannot sense the temperature rise of the cutter head or even generates high temperature in the clipping process in time, the pet or the animal feels uncomfortable or even is injured in the clipping process and struggles to well match with an owner to finish the clipping of the hair, and the pet or the animal owner cannot find a real symptom.

The heat dissipation function of the hair clipper of the present invention will be further described by comparing the test data of the existing hair clipper with the test data of the hair clipper of the present invention.

Specifically, the temperature test results of the prior art shearing machine during use are shown in table 1 and fig. 9 and 10. The test room temperature is 24 ℃, the temperature of 3 different positions of the cutting edge of the static blade is monitored in real time under the no-load mode of starting the shearing device, the monitoring is continued for 60 minutes, and the temperature of 3 test points is recorded every minute. Ch1, ch3 and Ch4 are test data of different test points of one charging hair cutter in the prior art, and Ch6, ch7 and Ch8 are test data of different test points of another hair cutter adopting a socket for power supply in the prior art.

TABLE 1

As can be seen from table 1 and fig. 9, the temperature rise curve of the charging shearing machine is fast, the temperature is continuously raised within 40 minutes, the maximum temperature is 57.1 ℃, the machine is stopped after the electricity is exhausted within 40 minutes, and the temperature is slowly reduced; as can be seen from table 1 and fig. 10, the temperature rose faster 15 minutes before the clipper was plugged in, after which the temperature rose slowly, with a maximum temperature of 49.4 ℃.

The results of temperature testing of the shearing machine of the present invention during use are shown in table 2 and fig. 11. The test room temperature is 24 ℃, the temperature of 3 different positions of the cutting edge of the static blade is monitored in real time under the no-load mode of starting the shearing device, the monitoring is continued for 60 minutes, and the temperature of 3 test points is recorded every minute. Wherein, T1, T2 and T3 are the temperatures of 3 test points.

TABLE 2

As can be seen from Table 2 and FIG. 11, the temperature rise curve of the shearing device of the present invention is relatively uniform, the temperature rises from 24 ℃ to 42.9 ℃ at room temperature, and after 15 minutes, the blade temperature tends to be stable and is maintained at about 42 ℃.

Comparing table 1 and table 2 with fig. 9, 10 and fig. 11, it can be easily seen that, compared with the hair clipper of the prior art, the structure design of the heat dissipation device of the hair clipper of the present invention is more in accordance with the aerodynamic structure design, so that the temperature rise is stable, the heat dissipation can be continuously and well performed in the working process, the temperature of the blade of the hair clipper can be maintained at about 42 ℃, the overheating condition in the clipping process of the blade head can be prevented, the risk of injuring the pet can be avoided, the fitting degree of the pet in the clipping process is high, and the user experience is better.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, a first feature may be "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.

In the description of the present specification, the description of "one embodiment", "some embodiments", "examples", "specific examples" or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present invention and that those skilled in the art may make modifications, alterations, substitutions and alterations to the above embodiments within the scope of the present invention.

Claims

1. A hair clipper comprising a body (40) and a cutter head assembly (10) secured to the body (40), characterized by:

a motor (420) is arranged in the main body (40), and an eccentric shaft (421) of the motor (420) extends out of the front end of the main body (40);

the cutter head component (10) comprises a heat dissipation device (100), a static blade (200) and a movable blade component (300);

the heat dissipation device (100) comprises a heat dissipation plate (110) and a mounting structure (120), the mounting structure (120) and the heat dissipation plate (110) are connected into a whole, a bottom plate is arranged on the rear side of the mounting structure (120), an accommodating cavity (123) which is through up and down is arranged on the front side of the mounting structure (120), the upper end of the heat dissipation plate (110) inclines towards the main body (40), and the left side wall and the right side wall of the heat dissipation plate (110) extend backwards to be connected into a whole to form the mounting structure (120) with an open upper part;

the static blade (200) is fixed on a bottom plate of the mounting structure (120);

the movable blade assembly (300) is arranged in the accommodating cavity (123) and comprises a torsion spring (330), a movable blade holder (310) and a movable blade (320), the movable blade (320) is fixed at the front end of the movable blade holder (310), an upward convex connecting structure is arranged at the rear end of the movable blade holder (310), and a tooth comb of the movable blade (320) is in contact with a tooth comb of the fixed blade (200);

the torsion spring (330) is fixed on the mounting structure (120), two ends of the torsion spring (330) are respectively provided with a pressure lever (333), and the rear end of each pressure lever (333) is fixed on the movable blade (320) and presses and contacts the tooth comb of the movable blade (320) and the tooth comb of the static blade (200);

the cutter head component (10) is fixed at the front end of the main body (40), the eccentric shaft (421) is movably matched with a connecting structure of the movable cutter holder (310), and the movable cutter holder (310) is driven to swing left and right under the action of the motor (420), so that the shearing action of the movable cutter blade (320) and the fixed cutter blade (200) is realized.

2. The hair trimmer of claim 1, wherein: a main control circuit board (450) electrically connected with the motor (420) is further arranged in the main body (40);

the main control circuit board (450) is provided with a power compensation module, and the power compensation module controls the output power of the motor (420) according to the resistance of the cutter head assembly (10) during shearing.

3. The hair trimmer of claim 2, wherein: an LED illuminating lamp (430) is arranged at the front end of the main body (40), and a lamp control circuit board (440) connected with the LED illuminating lamp (430) is further arranged in the main body (40);

the LED illuminating lamp is characterized in that a brightness adjusting module and an environment brightness induction module are arranged on the lamp control circuit board (440), and the brightness adjusting module automatically adjusts the brightness of the LED illuminating lamp (430) according to brightness data induced by the environment brightness induction module.

4. The hair trimmer of claim 3, wherein: the lamp control circuit board (440) is further provided with a display module (441), the display module comprises a plurality of LED patch lamps, and the LED patch lamps display at least one character, figure or symbol representing the working state of the hair cutter under the control of the lamp control circuit board (440);

the casing of main part (40) corresponds display module assembly (441) is equipped with display panel (4711), it is equipped with light-transmitting structure to correspond on display panel (4711) characters, figure or symbol.

5. The hair trimmer of claim 3, wherein: the lamp control circuit board (440) is also provided with a working state indicator lamp and a blade service life indicator lamp (481);

and light guide columns are arranged on the working state indicator lamp and the blade life indicator lamp (481), and light holes are formed in the shell of the main body (40) corresponding to the light guide columns.

6. The hair clipper of claim 4 or 5, wherein: an intelligent mode key (442) is arranged on the lamp control circuit board (440), and the intelligent mode key (442) is used for sending a signal to the main control circuit board (450) to start an intelligent trimming mode selection function; or

A gear switch (451) is arranged on the main control circuit board (450), and the gear switch (451) is used for turning on or off the hair cutter and adjusting the work output power of a gear control motor (420); or

The main control circuit board (450) is further provided with a cutter head resetting switch (452), and the cutter head resetting switch (452) is used for resetting the service life of the cutter head assembly (10) displayed on the display module (441) or resetting the display color of the blade life indicator lamp (481) after the cutter head assembly (10) is replaced;

the casing of main part (40) corresponds intelligent mode button (442), gear switch (451) and tool bit reset switch (452) all are equipped with the button hole.

7. The hair trimmer of claim 1, wherein:

the heat dissipation plate (110) is plate-shaped, and a heat dissipation structure and a light transmission structure are arranged on the front side surface of the heat dissipation plate.

8. The hair trimmer of claim 7, wherein:

the mounting structure (120) comprises a limiting part (121) and a fixing part (122) which are arranged on the bottom plate;

the fixing part (122) is provided with two limiting grooves (1221) with openings facing the heat dissipation plate (110), and a clamping groove is formed between the two limiting grooves (1221);

the limiting part (121) is arranged on the front side of the fixing part (122);

the torsion spring (330) comprises two torsion parts (331), one ends, close to each other, of the two torsion parts (331) are connected through a U-shaped rod (332), one ends, far away from each other, of the two torsion parts (331) are provided with the pressing rods (333), and the pressing rods (333) are perpendicular to the two torsion parts (331);

the two torsion portions (331) are arranged in the two limiting grooves (1221) respectively, the U-shaped rod (332) is clamped into the clamping groove, the two pressing rods (333) are located on two sides of the limiting portion (121) respectively, and the left-right swinging displacement of the pressing rods is limited by the limiting portion (121).

9. The hair clipper according to claim 1, wherein a cutter head fixing plate is further arranged on the outer side of the front end of the main body (40), elastic pieces (411) are arranged on two sides of the cutter head fixing plate (410), a through hole is formed between the two elastic pieces (411), and the eccentric shaft (421) penetrates out of the through hole and is movably matched with the connecting structure of the movable cutter holder (310);

the mounting structure (120) is further provided with an elastic sheet clamping groove matched with the elastic sheet (411).

10. The hair trimmer according to claim 1, characterized in that the upper surface of the stationary blade (200) abuts against the bottom surface of the mounting structure (120), and both the upper surface of the stationary blade (200) and the bottom surface of the mounting structure (120) are smooth and flat.