WO2022262391A1

WO2022262391A1 - Hairclipper

Info

Publication number: WO2022262391A1
Application number: PCT/CN2022/086188
Authority: WO
Inventors: 范亚华; 刘堉; 范德强
Original assignee: 深圳逗爱创新科技有限公司
Priority date: 2021-06-18
Filing date: 2022-04-11
Publication date: 2022-12-22

Abstract

A hairclipper, comprising a body (40) and a cutting head assembly (10). A motor (420) is provided in the body, and an eccentric shaft (421) of the motor extends out of the front end of the body; the cutting head assembly comprises a heat dissipation device (100), a static blade (200), and a movable cutter assembly (300); the heat dissipation device comprises a heat dissipation plate (110) and an installing structure (120); a vertically-through containing cavity (123) is formed in the front side of the installing structure; the static blade is fixed on a bottom plate of the installing structure; the movable cutter assembly comprises a torsion spring (330), a movable cutter holder (310), and a movable blade (320); the movable blade is fixed on the movable cutter holder; a connecting structure is provided at the rear end of the movable cutter holder; the movable cutter assembly is provided in the containing cavity; the movable blade is in contact with the static blade; the torsion spring has one end fixed on the installing structure, and the other end fixed on the movable blade; the cutting head assembly is fixed to the front end of the body; and the eccentric shaft is movably matched with the connecting structure of the movable cutter holder. The hairclipper simplifies the structure of the cutting head assembly, is good in heat dissipation, and does not make a pet feel uncomfortable or even scalded due to overheating of a cutting head, such that the cooperation degree of the pet is improved, and user experience is better.

Description

a hair clipper

technical field

The present application relates to the technical field of pet products, in particular to a hair clipper.

Background technique

In the process of keeping pets, people usually need to cut their hair regularly for the health of pets and to make pets more lovely. Therefore, hair clippers have become an indispensable tool for raising pets.

At present, most commonly used hair clippers are electric hair clippers, which include a main body and a cutter head assembly. The main body of the body is provided with a motor, which can drive the electric push head located in the cutter head assembly to move. Since the friction between the stationary blade and the moving blade causes the temperature to rise during the working process of the electric push head, a cooling device needs to be provided on the cutter head assembly. However, in the prior art, the cooling device is arranged on the tool holder of the cutter head, which not only increases the complexity and cost of the cutter head structure, but also has a small contact area between the cooling device and the blade, and the heat conduction efficiency is low, which cannot play a good role. cooling effect. In addition, due to the complex structure of the cutter head in the prior art, it is also not conducive to installing other auxiliary components such as lighting lamps on the shearer.

Contents of the invention

(1) Technical problems to be solved

In view of the above-mentioned shortcomings and deficiencies of the prior art, the present application provides a hair clipper, which solves the technical problems of complex structure and poor heat dissipation of the existing clipper head.

(2) Technical solution

In order to achieve the above-mentioned purpose, the main technical scheme that this application adopts comprises:

In the first aspect, the embodiment of the present application provides a hair clipper, which includes a main body and a cutter head assembly fixed on the main body; a motor is provided in the main body, and the eccentric shaft of the motor protrudes from the front end of the main body ;

The cutter head assembly includes a cooling device, a stationary blade and a moving knife assembly;

The heat dissipation device includes a heat dissipation plate and a mounting structure, the mounting structure is integrated with the heat dissipation plate, the rear side of the mounting structure is provided with a bottom plate, and the front side of the mounting structure is provided with an accommodating cavity through up and down;

The static blade is fixed on the bottom plate of the installation structure;

The moving knife assembly is arranged in the accommodating cavity, which includes a torsion spring, a moving knife seat and a moving blade, the moving blade is fixed on the front end of the moving knife seat, and the rear end of the moving knife seat is provided with an upward A raised connection structure, the tooth comb of the moving blade is in contact with the tooth comb of the stationary blade;

The torsion spring is fixed on the installation structure, and both ends of the torsion spring are provided with pressing rods, and the rear end of the pressing rod is fixed on the moving blade to connect the tooth comb of the moving blade with the The tooth comb of the static blade presses into contact;

The cutter head assembly is fixed on the front end of the main body, and the eccentric shaft movably cooperates with the connection structure of the movable knife seat, and drives the movable knife seat to swing left and right under the action of the motor, thereby realizing the The shearing action of the moving blade and the stationary blade.

Optionally, a main control circuit board electrically connected to the motor is also provided in the main body;

A power compensation module is provided on the main control circuit board, and the power compensation module controls the output power of the motor according to the resistance received by the cutter head assembly during the shearing action.

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

The light control circuit board is provided with a brightness adjustment module and an environment brightness sensing module, and the brightness adjustment module automatically adjusts the brightness of the LED lighting lamp according to the brightness data sensed by the environment brightness sensing module.

Optionally, the light control circuit board is also provided with a display module, the display module includes a plurality of LED patch lights, and the LED patch lights display an indication under the control of the light control circuit board At least one text, graphic or symbol of the working state of the clipper;

The casing of the main body is provided with a display panel corresponding to the display module, and a light-transmitting structure is provided on the display panel corresponding to the characters, graphics or symbols.

Optionally, a working status indicator light and a blade life indicator light are also arranged on the light control circuit board;

Both the working status indicator light and the blade life indicator light are provided with a light guide column, and the housing is provided with a light transmission hole corresponding to the light guide column.

Optionally, the light control circuit board is provided with a smart mode button, and the smart mode button is used to send a signal to the main control circuit board to enable the trimming mode smart selection function; or

A gear switch is provided on the main control circuit board, and the gear switch is used to turn on or off the shearer and to adjust the work output power of the gear control motor; or

The main control circuit board is also provided with a cutter head reset switch, and the cutter head reset switch is used to reset the service life of the cutter head assembly displayed on the display module or reset the cutter head assembly after replacing the cutter head assembly. The display color of the blade life indicator;

The housing of the main body is provided with button holes corresponding to the smart mode button, gear switch and cutter head reset switch.

Optionally, the heat dissipation plate is plate-shaped, and its front surface is provided with a heat dissipation structure and a light transmission structure;

The upper end of the heat dissipation plate is inclined towards the main body, and the left and right side walls of the heat dissipation plate are extended backward and connected together to form an installation structure with an open top.

Optionally, the installation structure includes a limiting part and a fixing part arranged on the bottom plate;

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

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

The torsion spring includes two torsion parts, the ends of the two torsion parts close to each other are connected by a U-shaped bar, and the ends of the two torsion parts away from each other are provided with the pressure rod, and the pressure rod is connected to the two torsion parts. The above two torsion parts are vertical;

The two torsion parts are respectively placed in the two limiting grooves, the U-shaped bar is snapped into the locking groove, and the two pressing rods are respectively located on both sides of the limiting part, which swing left and right The displacement is limited by the limit part.

Optionally, the outer side of the front end of the main body is also provided with a cutter head fixing plate, both sides of the cutter head fixing plate are provided with shrapnel, a through hole is provided between the two shrapnel, and the eccentric shaft is connected from the piercing through the through hole and movably cooperating with the connecting structure of the movable knife seat;

The installation structure is also provided with an elastic clip slot cooperating with the elastic clip.

Optionally, the upper surface of the stationary blade is in close contact with the bottom surface of the installation structure, and both the upper surface of the stationary blade and the bottom surface of the installation structure are smooth planes.

(3) Beneficial effects

The beneficial effect of this application is:

1. The static blade and the moving knife assembly are directly installed on the cooling device. Compared with the prior art, it not only increases the contact area between the blade and the cooling device, realizes good heat dissipation function, but also saves the heat dissipation in the prior art. The knife holder of the knife head assembly simplifies the structure of the knife head assembly and also reduces the production cost;

2. The main body and the cutter head assembly are fixed by shrapnel for easy disassembly;

3. Set up LED lights and light control circuit boards to facilitate the use of the shearer when the ambient light is dark, and adjust the brightness of the LED lights according to the ambient brightness;

4. Set the display module or indicator light, which can display the working status of the shearer through text, symbols or patterns;

5. Different trimming modes are set, and a power compensation module is installed on the main control circuit board. When the intelligent selection function of the trimming mode is turned on, the power compensation module can adjust the motor power in real time according to the load of the cutter head assembly, avoiding When the motor works at high power and high speed at low load to do useless work, the problems of increased battery energy loss, life loss of cutter head components and increased frictional heat are caused. At the same time, it avoids trimming caused by the motor working at low power and low speed at high load Not smooth problem.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of embodiment 1 of the hair clipper of the present application;

Fig. 2 is an exploded schematic diagram of the hair clipper in Fig. 1;

Fig. 3 is a three-dimensional schematic diagram of the front end of the cutter head assembly of Fig. 1;

Fig. 4 is a three-dimensional schematic diagram of the rear end of the cutter head assembly in Fig. 3;

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

Fig. 6 is an exploded schematic diagram of the cutter head assembly in Fig. 4;

Fig. 7 is a three-dimensional schematic diagram of Embodiment 2 of the hair clipper of the present application;

Fig. 8 is an exploded schematic diagram of the hair clipper in Fig. 7;

Fig. 9 is a graph showing the relationship between the working hours and the temperature of the cutter head of the prior art rechargeable hair clipper;

Fig. 10 is a graph showing the relationship between the working hours and the cutter head temperature of the plug-in hair clipper in the prior art;

Fig. 11 is a graph showing the relationship between the working time and the temperature of the cutter head of the hair clipper of the present application.

[Description of Reference Signs]

10: cutter head assembly; 100: heat dissipation device; 110: heat dissipation plate; 120: installation structure; 121 limit part; 122: fixed part; 1221: limit groove; Blade; 300: moving knife assembly; 310: moving knife seat; 320: moving blade; 321: fixing hole of pressing bar; 330: torsion spring; 331: torsion part; 332: U-shaped bar; 333: pressing bar; 40: main body ;410: blade fixing plate; 411: shrapnel; 420: motor; 421: eccentric shaft; 430: LED lighting; 440: light control circuit board; 441: display module; 442: smart mode button; 450: main control Circuit board; 451: gear switch; 452: blade reset switch; 453: charging board; 460: battery; 471 upper cover; 4711: display panel; 472: lower cover; 473: handle shell; 481: blade life Indicator light; 482: power indicator light; 483: working mode indicator light.

detailed description

In order to better explain the present application and facilitate understanding, the present application will be described in detail below through specific implementation manners in conjunction with the accompanying drawings. Among them, the orientation nouns such as "front", "rear", "upper" and "lower" mentioned herein refer to the orientation of Fig. 1, define the direction towards the cutter head assembly as "front", and define the direction towards the main body 40 as "front". The orientation is defined as "back".

The hair clipper proposed in the embodiment of the present application includes a main body and a cutter head assembly fixed on the main body; an LED lighting lamp is provided at the front end of the main body, and a motor is provided in the main body, and the eccentric shaft of the motor is connected from the the front end of the body protrudes;

The heat dissipation device includes a heat dissipation plate and a mounting structure, the mounting structure is connected to the heat dissipation plate, a bottom plate is provided on the rear side of the mounting structure, and an accommodating cavity penetrating up and down is provided on the front side of the mounting structure;

The static blade is fixed on the bottom plate of the installation structure;

In the hair clipper of this embodiment, the cutter head assembly directly installs the static blade and the moving knife assembly on the heat dissipation device. Compared with the prior art, it not only increases the contact area between the blade and the heat dissipation device, but also achieves a good heat dissipation function. , the knife holder of the prior art cutter head assembly is also omitted, the structure of the cutter head assembly is simplified and the production cost is also reduced, and the LED lighting lamp is provided to facilitate the use of the shearer under the condition of low ambient light.

In order to better understand the above technical solution, the following will describe the exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for a clearer and more complete understanding of the present application, and to fully convey the scope of the present application to those skilled in the art.

Example 1:

Referring to FIGS. 1 to 6 , the hair clipper of this embodiment includes a main body 40 and a cutter head assembly 10 fixed on the front side of the main body 40 .

As shown in FIGS. 3 to 6 , the cutter head assembly 10 includes a cooling device 100 , a stationary blade 200 and a movable blade assembly 300 .

The heat sink 100 includes a heat sink 110 and a mounting structure 120 . Wherein, the cooling plate 110 is plate-shaped, and its upper end is inclined toward the main body 40, that is, it is inclined backward. A heat dissipation structure and a light transmission structure are provided on the front surface of the heat dissipation plate 110 . In practical application, in order to improve the heat dissipation effect, the heat dissipation structure may be a wavy or elongated heat sink. Open slots can be arranged between the heat sinks to form a light-transmitting structure.

The left and right side walls of the cooling plate 110 are extended backward and connected together to form an installation structure 120 with an open top. The installation structure 120 has an incompletely closed bottom plate, and the bottom plate is located at the rear side of the installation structure 120 , so that an accommodating cavity 123 penetrating up and down is formed at the front side of the installation structure 120 . A part of the movable knife assembly 300 is inserted into the accommodating chamber 123 from below the heat sink 100 .

In a feasible solution, the heat dissipation plate 110 and the installation structure 120 may be integrally formed by aluminum alloy die-casting.

The installation structure 120 also includes a limiting portion 121 and a fixing portion 122 disposed on the bottom plate. The fixing portion 122 is provided with two limiting grooves 1221 opening toward the heat sink 100 , and the two limiting grooves 1221 are symmetrically arranged and spaced from each other. The limiting portion 121 is disposed on the front side of the fixing portion 122 and opens toward the fixing portion 122 , and is generally U-shaped. The limiting part 121 includes a limiting seat and limiting arms located on the left and right sides of the limiting seat, and the limiting arms are set in one-to-one correspondence with the limiting slots 1221 of the fixing part 122 .

In addition, buckles 124 may be provided at the rear end and the left and right sides of the installation structure 120 for detachably fixing the heat sink 100 to the main body 40 of the hair clipper. The mounting structure 120 is also provided with an elastic clip slot that cooperates with the elastic clip 411 (to be described below) on the cutter head fixing plate 410 .

The front end of the static blade 200 is provided with a comb. The upper surface of the static blade 200 is a smooth plane, and the lower surface is provided with a heat dissipation structure. The stationary blade 200 is fixed on the bottom of the installation structure 120 . Preferably, the bottom of the installation structure 120 is a smooth plane, so that the upper surface of the stationary blade 200 is in close contact with the bottom surface of the installation structure 120 .

The movable knife assembly 300 includes a fixed part and a movable part. The movable part includes a movable knife seat 310 and a movable blade 320 , and the fixed part includes a torsion spring 330 . The moving knife seat 310 is provided with a moving blade fixing plate, the rear end of the moving blade fixing plate protrudes upwards to form a raised portion, and the raised portion is inserted into the accommodating cavity 123 from below the installation structure 120, and the rear side of the raised portion is provided with There is a connecting structure, and an eccentric shaft hole (or an eccentric shaft installation groove) is arranged on the connecting structure for movingly cooperating with the eccentric shaft 421 . The movable blade 320 is fixed on the front end of the movable blade fixed plate by screws, and the tooth comb of the movable blade 320 protrudes from the front end of the movable blade fixed plate to contact with the tooth comb of the stationary blade 200 . The rear of the tooth comb of the movable blade 320 is provided with a pressing bar fixing hole 321 . The torsion spring 330 has a left-right symmetrical structure and includes two torsion parts 331 . The ends of the two torsion parts 331 that are close to each other are connected by a U-shaped bar 332 , and the ends that are far away from each other are provided with compression bars 333 .

The two torsion parts 331 of the torsion spring 330 are fixed in the limiting groove 1221 of the fixing part 122 one by one, and the hook at the end of the pressing rod 333 is placed in the pressing rod fixing hole 321 on the movable blade 320 . Under the action of the torsion spring 330, the tooth comb of the movable blade 320 is pressed into contact with the tooth comb of the static blade 200, so that the movable blade 320 can cooperate with the static blade 200 to realize the cutting action while moving left and right under the drive of the movable knife seat 310 .

In this embodiment, the moving knife assembly 300 is arranged in the housing cavity 123 of the installation structure 120, the moving blade 320 is in contact with the stationary blade 200, and the torsion spring 330 makes the moving blade 320 press the stationary blade 200 (that is, the torsion spring 330 makes the moving knife assembly 300 cannot move up and down), so that the movable knife assembly 300 is movably fixed on the mounting structure 120 under the joint action of the torsion spring 330 and the static blade 200, and can swing left and right under the drive of the eccentric shaft 421. In order to make the pressing rod 333 of the torsion spring 330 press the moving blade 320, a card slot is provided between the two limiting grooves 1221 of the fixed part 122. When assembling, the two torsion parts 331 are respectively placed in the corresponding limiting grooves 1221 Inside, the U-shaped rod 332 is snapped into the slot, which can prevent the torsion part 331 from rotating, so that the pressing rod 333 always presses the movable blade 320 . At the same time, the limiting portion 121 can limit the left and right displacement of the torsion spring 330 , thereby limiting the displacement of the movable knife seat 310 in the left and right directions.

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

In some embodiments, the static blade 200 can be fixed on the bottom of the heat sink 100 in various ways, such as by screws or buckles, as long as the upper surface of the static blade 200 and the lower surface of the heat sink 100 are attached to each other. together, and detachable.

In this embodiment, the contact surfaces of the static blade 200 and the mounting structure 120 are all arranged as a smooth plane, which increases the contact area between the static blade 200 and the heat sink 100, and a heat dissipation structure is arranged on the lower surface of the static blade 200, which improves the heat radiation. In some embodiments, in order to further improve the heat dissipation effect, a layer of thermal conductive glue may also be filled between the stationary blade 200 and the installation structure 120 .

In the cutter head assembly of this embodiment, the static blade and the moving knife assembly are directly installed on the heat sink. Compared with the prior art, it not only increases the contact area between the blade and the heat sink, realizes a good heat dissipation function, and saves energy at the same time. The cutter holder of the cutter head assembly in the prior art is eliminated, the structure of the cutter head assembly is simplified, and the production cost is also reduced.

Continuing to refer to FIG. 1 and FIG. 2 , the main body 40 includes a housing, a cutter head fixing plate 410 , a motor 420 , an LED light 430 , a light control circuit board 440 , a display module 441 , a main control circuit board 450 and a battery 460 .

The cutter head fixing plate 410 is fixed on the front end of the motor 420 . Elastic pieces 411 are provided on both sides of the cutter head fixing plate 410 , and the elastic pieces 411 protrude in a direction away from the motor 420 . The elastic piece 411 is engaged with the elastic piece slot provided on the installation structure 120 to fix the cutter head assembly on the front side of the main body 40 .

The cutter head fixing plate 410 is also provided with a through hole between the two elastic pieces 411 , and the eccentric shaft 421 of the motor 420 passes through the through hole.

The main control circuit board 450 is fixed behind the motor 420 and electrically connected with the motor 420 . The main control circuit board 450 is used to control the motor 420 and the light control circuit board 440 . A gear switch 451 is provided on the upper side of the main control circuit board 450 . The gear switch 451 is used to turn on or off the clipper, and can also be used to select the working mode of the clipper (such as silent working mode or strong working mode). The gear switch 451 can be a key switch or a slide switch. Specifically, it can be set as required.

In practical applications, the gear switch 451 can be in electrical contact with the main control circuit board 450 through the gear switch shrapnel (such as gold-plated beryllium bronze), so as to realize the functions of switching and gear adjustment.

In practical applications, the shearer can realize the automatic gear shifting function in the smart mode (to be 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, a The second gear is a silent working mode, and the power of the motor 420 is relatively small, and the second gear is a strong working mode, and the power of the motor 420 is relatively large. When exiting the smart mode, if the gear switch 451 stays in the first gear, the motor 420 enters the silent working mode; if the gear switch 451 stays in the second gear, the motor 420 enters the strong working mode.

The rear end of the main control circuit board 450 is also provided with a cutter head reset switch 452, and the cutter head reset switch 452 is used to reset the service life of the cutter head assembly 10 displayed on the display module 441 or The display color of the blade life indicator light 481 (see FIG. 8 ) is reset.

In practical applications, the cutter head reset switch 452 can also be used to control the LED lighting lamp 430 . For example, clicking the cutter head reset switch 452 can turn on or off the LED light 430, and long pressing the cutter head reset switch 452 (for example, pressing for 5 seconds) realizes the reset function.

In practical applications, the blades (stationary blades and moving blades) of the hair clipper all have a certain service life. When the blade reaches the upper limit of service life after long-term use, and the loss is serious, the cutter head assembly 10 or the blade needs to be replaced. After the replacement, the cutter head reset switch 452 needs to be used to reset the cutter head assembly 10 or the blade. Retime the working time of the blade, and reset the service life of the cutter head assembly 10 displayed on the display module 441 or reset the display color of the blade life indicator 481 .

In practical applications, a power compensation module can be set on the main control circuit board 450, and the power of the motor 420 can be controlled by sensing the resistance of the blade when performing a cutting action (that is, the power of the motor 420 can be adjusted in real time according to the load of the cutter head assembly) . For example, after turning on the intelligent mode selection function, when the hair is dense, the resistance increases, and the power compensation module controls the working voltage of the motor at 3.4V, increases the output power of the motor 420, and enters a strong working mode; when the hair is less, the resistance decreases , the power compensation module controls the working voltage of the motor at 3.0V, reduces the output power of the motor 420, and enters a silent working mode. The power compensation module avoids the problems of increased energy loss of the battery 460, loss of life of the cutter head assembly 10, and increased frictional heat caused by the useless work of the motor 420 at low load due to high power and high speed. The 420 works with low power and low revs causing problems with not smooth trimming.

The light control circuit board 440 and the main control circuit board 450 can be electrically connected through an 8P connection wire. The LED lighting lamp 430 is electrically connected to the light control circuit board 440 . The light control circuit board 440 can also be provided with an environment brightness sensing module and a brightness adjustment module. The environment brightness sensing module can automatically sense the brightness data of the environment, and the brightness adjustment module adjusts the brightness of the LED lighting lamp 430 according to the brightness data. The display module 441 is disposed on the light control circuit board 440 . The display module 441 is provided with LED patch lamps arranged in a matrix, which can light up different LED patch lamps under the control of the light control circuit board 440 to display different characters, symbols or patterns, for displaying shearing device working status. The light control circuit board 440 is also provided with a smart mode button (SMART button) 442, and the smart mode button 442 is arranged at the rear of the display module 441 for turning on or off the smart mode selection function of the hair clipper.

In practical applications, the text, symbols or patterns displayed by the display module 441 can be used to display battery power, blade service life, working mode and/or cutter head temperature prompts, etc.

The shell of the main body 40 includes an upper cover 471 , a lower cover 472 and a handle shell 473 . The upper cover 471 and the lower cover 472 cooperate with each other to form a closed casing in the vertical direction. The cutter head fixing plate 410, the motor 420 and the light control circuit board 410 are located at the front side of the housing. Among them, the light control circuit board 410 is fixed on the upper cover 471 and is located above the motor 420; the LED lighting lamp 430 is fixed on the front end of the housing; The front end protrudes; the shrapnel 411 is engaged with the shrapnel groove provided on the mounting structure 120, and the cutter head assembly 10 is fixed on the front side of the housing; the eccentric shaft 421 is inserted into the eccentric shaft hole (or eccentric shaft mounting groove), can realize the cooperation with the movable knife seat 310, and drive the movable knife seat 310 to swing left and right under the effect of the motor 420, and realize the shearing action of the movable blade 320 and the static blade 200. The main control circuit board 450 and the battery 460 are disposed on the rear side of the casing. The battery 460 is electrically connected to the main control circuit board 450 and is disposed under the main control circuit board 450 .

In practical application, the motor 420 can be fixed on the motor fixing frame, and the motor fixing frame can be arranged on the lower cover 472 or the upper cover 471 according to actual needs. The rubber ring is used to reduce the 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-transmitting structure so that the text, graphics or symbol lights on the display module 441 are visible. The upper cover 471 is also provided with button holes corresponding to the gear switch 451 and the cutter head 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 buckle slots corresponding to the buckles 124 on the installation part 120 . The buckle 124 cooperates with the buckle slot, and at the same time, the elastic piece 411 and the elastic piece slot on the installation part 120 jointly fix the cutter head assembly 10 on the front side of the main body 40 .

The handle shell 473 is sheathed at the rear of the shell to facilitate the grasping of the shearer, and a button hole corresponding to the gear switch 451 is provided on it.

In practical applications, the battery can be a rechargeable battery. At this time, the main control circuit board 450 is also provided with a charging socket 453 with a charging interface, and the housing and the handle shell 473 are provided with charging holes corresponding to the charging interface.

In the hair clipper of this embodiment, the cutter head assembly directly installs the static blade and the moving knife assembly on the heat dissipation device. Compared with the prior art, it not only increases the contact area between the blade and the heat dissipation device, but also can achieve good heat dissipation. function, the tool holder of the prior art cutter head assembly is also omitted, the structure of the cutter head assembly is simplified and the production cost is also reduced. The main body and the cutter head assembly are fixed by shrapnel and buckle slots for easy disassembly; LED lighting is set to facilitate the use of the shearer in low ambient light; a display module is set, which can be displayed through text, symbols or Patterns, etc. show the working status of the clipper.

Example 2:

On the basis of Embodiment 1, the hair clipper of this embodiment is proposed, and the display module in Embodiment 1 is replaced by a working status indicator light and a blade life indicator light.

Referring to FIG. 7 and FIG. 8 , in this embodiment, the working status indicator light includes a power indicator light 482 and a working mode indicator light 483 . The power indicator light 482 and the blade life indicator light 481 are arranged on the front side of the light control circuit board 440 , and the working mode indicator light 483 is arranged on the rear side of the light control circuit board 440 . Wherein, the working mode indicator light 483 includes a plurality of indicator lights arranged side by side, and indicates different working modes of the hair clipper according to the number of lighted indicator lights, for example, when there are fewer lighted indicator lights, it represents a silent working mode When all the indicator lights of the working mode are on, it means strong working mode.

In practical applications, the indication meanings of the working status indicator light and the blade life indicator light 481 can also be defined according to needs. For example, the power indicator light 482 is displayed as a green steady light to indicate that the battery is fully charged, and when it is displayed as green and flashing, it indicates that it is charging, and it is displayed as a red light. Blinking indicates that the battery is insufficient; the blade life indicator 481 is displayed in red to indicate that the blade needs to be replaced, and the indicator light is off to indicate that the blade has not reached the end of its service life.

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

In the hair clipper of this embodiment, the cutter head assembly directly installs the static blade and the moving knife assembly on the heat dissipation device. Compared with the prior art, it not only increases the contact area between the blade and the heat dissipation device, but also can achieve good heat dissipation. function, also saves the tool holder of the prior art cutter head assembly, simplifies the structure of the cutter head assembly and reduces the production cost. The main body and the cutter head assembly are fixed by shrapnel and buckle slots for easy disassembly; LED lighting is set to facilitate the use of the shearer in low ambient light; a working indicator light is set to display the work of the shearer state.

In practical applications, the hair of pets or animals is long and dense, and the hair clippers using the prior art are easy to get stuck and cannot work normally. To even scald pets or animals, and the handle shell of the clipper is far away from the cutter head and the thermal conductivity is not strong, so the person using the clipper cannot timely sense the temperature rise or even high temperature of the cutter head during the trimming process, causing pets or animals Feeling uncomfortable or even injured during the shearing process and struggling, unable to cooperate well with the owner to complete the trimming of the hair, and the pet or animal owner may not be able to find the real crux. The structure of the cooling device of this application conforms to the aerodynamic structure design, It can dissipate heat more effectively, which can prevent the cutter head from overheating during the trimming process, so there is no risk of harming the pet, and the pet's cooperation degree becomes higher during the trimming process.

In the following, the heat dissipation function of the hair clipper of the present application 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 application.

Specifically, refer to Table 1 and Fig. 9 and Fig. 10 for the temperature test results of the hair clipper in the prior art during use. The test room temperature is 24°C. In the no-load mode of the hair clipper, the temperature of 3 different positions on the blade of the static blade is monitored in real time for 60 minutes, and the temperature of 3 test points is recorded every minute. Among them, Ch1, Ch3 and Ch4 are the test data of different test points of a rechargeable clipper in the prior art, and Ch6, Ch7 and Ch8 are the test data of different test points of another socket-powered clipper of the prior art .

Table 1

It can be seen from Table 1 and Figure 9 that the temperature rise curve of the rechargeable hair clipper is relatively fast, and the temperature continues to rise within 40 minutes, with a maximum temperature of 57.1°C. After 40 minutes, the power is exhausted and the machine is shut down, and the temperature drops slowly; from Table 1 and Figure 10 It can be seen from the figure that the temperature of the plug-in hair clipper rises quickly in the first 15 minutes, and then the temperature rises slowly, with the highest temperature being 49.4°C.

Refer to Table 2 and Figure 11 for the temperature test results of the hair clipper of the present application during use. The test room temperature is 24°C. When the shearer is turned on and under no-load mode, the temperature of 3 different positions on the blade of the stationary blade is monitored in real time for 60 minutes, and the temperature of 3 test points is recorded every minute. Among them, T1, T2 and T3 are the temperatures of the three test points.

Table 2

As can be seen from Table 2 and Figure 11, the temperature rise curve of the hair clipper of the present application is relatively uniform,

From room temperature 24°C to 42.9°C, the temperature continued to rise, and after 15 minutes, the temperature of the blade stabilized and remained at about 42°C.

Comparing Table 1 and Table 2 and Fig. 9, 10 and Fig. 11, it is not difficult to see that, compared with the prior art hair clipper, the structural design of the heat dissipation device of the hair clipper of the present application is more in line with the aerodynamic structure design, therefore, Its temperature rise is stable, and it can continue to dissipate heat well during the working process, so that the temperature of the blade of the clipper can be maintained at about 42°C, which can prevent the cutter head from overheating during trimming, so there is no risk of harming pets. The pet's cooperation degree becomes higher during the trimming process, and the user experience is better.

Practicality

Because the hair clipper of the present application not only increases the contact area between the blade and the heat sink, realizes a good heat dissipation function, but also saves the knife rest of the cutter head assembly in the prior art, which simplifies the structure of the cutter head assembly and reduces the energy consumption. Production cost, therefore, the hair clipper of the present application has practicality.

In the description of the present application, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it can be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary; it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise clearly specified and limited, the first feature is "on" or "under" the second feature, which may be that the first and second features are in direct contact, or the first and second features pass through an intermediary indirect contact. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the level of the first feature is higher than that of the second feature . "Below", "under" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower than the second feature.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" refers to the A particular feature, structure, material, or characteristic described is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to alterations, modifications, substitutions and variations.

Claims

A hair clipper, comprising a main body (40) and a cutter head assembly (10) fixed on the main body (40), characterized in that:

The main body (40) is provided with a motor (420), and the eccentric shaft (421) of the motor (420) protrudes from the front end of the main body (40);

The cutter head assembly (10) includes a heat sink (100), a stationary blade (200) and a moving knife assembly (300);

The heat dissipation device (100) includes a heat dissipation plate (110) and a mounting structure (120), the mounting structure (120) is integrated with the heat dissipation plate (110), and the rear side of the mounting structure (120) is provided with There is a bottom plate, and the front side of the installation structure (120) is provided with an accommodating cavity (123) that penetrates up and down;

The stationary blade (200) is fixed on the bottom plate of the installation structure (120);

The moving knife assembly (300) is arranged in the accommodating cavity (123), which includes a torsion spring (330), a moving knife seat (310) and a moving blade (320), and the moving blade (320) is fixed on the The front end of the moving knife seat (310), the rear end of the moving knife seat (310) is provided with an upwardly protruding connection structure, the tooth comb of the moving blade (320) and the tooth comb of the stationary blade (200) comb contact;

The torsion spring (330) is fixed on the installation structure (120), and both ends of the torsion spring (330) are provided with a compression rod (333), and the rear end of the compression rod (333) is fixed on the On the moving blade (320) and press the tooth comb of the moving blade (320) into contact with the tooth comb of the stationary blade (200);

The cutter head assembly (10) is fixed on the front end of the main body (40), the eccentric shaft (421) is movably matched with the connection structure of the movable tool seat (310), and is connected to the motor (420) Under the action, the movable knife seat (310) is driven to swing left and right, thereby realizing the shearing action of the movable blade (320) and the stationary blade (200).
The hair clipper according to claim 1, characterized in that: a main control circuit board (450) electrically connected to the motor (420) is also provided 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 size of the resistance received by the cutter head assembly (10) during the shearing action. the size of.
The hair clipper according to claim 2, characterized in that: the front end of the main body (40) is provided with an LED lighting lamp (430), and the inside of the main body (40) is also provided with the LED lighting lamp (430). connected light control circuit board (440);

The light control circuit board (440) is provided with a brightness adjustment module and an environment brightness sensing module, and the brightness adjustment module automatically adjusts the brightness of the LED lighting lamp (430) according to the brightness data sensed by the environment brightness sensing module.
The hair clipper according to claim 3, characterized in that: the light control circuit board (440) is also provided with a display module (441), the display module includes a plurality of LED chip lights, and the LED Under the control of the light control circuit board (440), the patch lamp displays at least one text, figure or symbol representing the working state of the hair clipper;

The casing of the main body (40) is provided with a display panel (4711) corresponding to the display module (441), and a light-transmitting structure is provided on the display panel (4711) corresponding to the characters, graphics or symbols.
The hair clipper according to claim 3, characterized in that: the light control circuit board (440) is also provided with a working status indicator light and a blade life indicator light (481);

Both the working state indicator light and the blade life indicator light (481) are provided with a light guide column, and the shell of the main body (40) is provided with a light transmission hole corresponding to the light guide column.
The hair clipper according to claim 4 or 5, characterized in that: the light control circuit board (440) is provided with a smart mode button (442), and the smart mode button (442) is used to The circuit board (450) sends a signal to turn on the pruning mode intelligent selection function; or

The main control circuit board (450) is provided with a gear switch (451), and the gear switch (451) is used to turn on or off the hair clipper and to adjust the work output of the gear control motor (420). power; or

The main control circuit board (450) is also provided with a cutter head reset switch (452), and the cutter head reset switch (452) is used to reset the display module (441) after replacing the cutter head assembly (10). ) to display the service life of the cutter head assembly (10) or reset the display color of the blade life indicator light (481);

The casing of the main body (40) is provided with button holes corresponding to the smart mode button (442), gear switch (451) and cutter head reset switch (452).
The hair clipper according to claim 1, characterized in that:

The heat dissipation plate (110) is plate-shaped, and its front surface is provided with a heat dissipation structure and a light transmission structure;

The upper end of the heat dissipation plate (110) is inclined towards the main body (40), and the left and right side walls of the heat dissipation plate (110) are extended backward and connected together to form an installation structure (120) with an open top.
The hair clipper according to claim 7, characterized in that:

The installation structure (120) includes a limiting part (121) and a fixing part (122) 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 card slot is arranged 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) includes two torsion parts (331), the ends of the two torsion parts (331) that are close to each other are connected by a U-shaped bar (332), and the ends of the two torsion parts (331) that are far away from each other One end is provided with the pressure rod (333), and the pressure rod (331) is perpendicular to the two torsion parts (331);

The two torsion parts (331) are respectively placed in the two limiting grooves (1221), the U-shaped bar (332) is snapped into the slot, and the two pressing bars (333) are respectively located in the On both sides of the limiting part (121), the left and right swinging displacement is limited by the limiting part (121).
The shearer according to claim 1, the outside of the front end of the main body (40) is also provided with a cutter head fixing plate, and both sides of the cutter head fixing plate (410) are provided with shrapnel (411), two A through hole is provided between the shrapnels (411), and the eccentric shaft (421) passes through the through hole and movably cooperates with the connection structure of the movable knife seat (310);

The installation structure (120) is also provided with an elastic clip slot that cooperates with the elastic clip (411).
The hair clipper according to claim 1, characterized in that, the upper surface of the stationary blade (200) is in close contact with the bottom surface of the installation structure (120), and the upper surface of the stationary blade (200) is in contact with the The bottom surfaces of the mounting structures (120) are all smooth planes.