CN214561103U

CN214561103U - Electric hair clipper driven by brushless external rotor motor

Info

Publication number: CN214561103U
Application number: CN202120882642.4U
Authority: CN
Inventors: 李磊; 曾子斌
Original assignee: Wuhan Shenbao Pet Product Co ltd
Current assignee: Wuhan Shenbao Pet Product Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-27
Publication date: 2021-11-02
Anticipated expiration: 2031-04-27

Abstract

The utility model discloses an electric hair clipper driven by a brushless external rotor motor, which comprises a tool bit component, a motor component and a swing rod transmission component; the cutter head component comprises a fixed cutter blade and a movable cutter blade movably arranged on the fixed cutter blade; the motor assembly comprises a brushless outer rotor motor, an eccentric output shaft and a spherical bearing; the swing rod transmission assembly is arranged between the tool bit assembly and the motor assembly and comprises a positioning pin shaft and a transmission swing rod which is sleeved on the positioning pin shaft and can rotate around the positioning pin shaft, a driving notch used for containing the spherical bearing is formed in one end, corresponding to the motor assembly, of the transmission swing rod, and one end, corresponding to the tool bit assembly, of the transmission swing rod is used for driving the movable blade to move. The utility model has the advantages of simple and reasonable structure, adopt brushless external rotor electric machine, increased the output torque under the equal rotational speed, effectively reduced the temperature rise of tool bit, and can realize directly driving, reduced the noise, adopt spherical bearing to reduce wearing and tearing as the fulcrum of motor output with the pendulum rod link simultaneously.

Description

Electric hair clipper driven by brushless external rotor motor

Technical Field

The utility model relates to an electric clipper equipment technical field, in particular to electric clipper by brushless external rotor motor driven.

Background

Electric hair clippers are well known as a common hair cutting and shearing tool, and are mainly used for cutting human hair or animal hair. The electric hair clipper comprises a shell and a motor arranged in the shell, wherein a fixed blade is fixedly arranged at the front end of the shell, a movable blade is fixedly arranged at the front end of a swinging head through a swinging frame, and the movable blade and the fixed blade are arranged at a certain gap; the motor drives the movable blade to swing in a reciprocating mode, so that the movable blade is driven to swing in a reciprocating mode relative to the fixed blade, and the hair cutting and trimming function is achieved.

However, most of the electric clippers in the prior art adopt a traditional motor and a transmission structure, and in order to achieve efficient hair trimming by driving the cutter head, the hair trimming can only be achieved by means of high rotating speed of the motor, so that the friction frequency of the blade is high, and therefore, when the hair trimmer is used for a long time, the temperature rise of the cutter head is fast and the heat generation is serious, so that people or animals to be trimmed can easily cause discomfort and repulsion when the cutter head is close to the skin, and even risk of being scalded is caused. Meanwhile, the conventional electric hair clipper also has the following problems: 1. when the cutting tool is used for a long time in a high-speed operation mode, the abrasion of the blade is accelerated, and the sharpness of the blade is reduced rapidly; 2. the electric hair clipper has high noise and fast power consumption when in work; 3. large torque cannot be generated at a low rotation speed; 4. The existing design also adopts the form of speed change gear transmission, although can also realize producing great moment under lower rotational speed, because speed change gear's indirect drive can produce extra noise, user's use experience is also relatively poor, in addition, speed change gear's wearing and tearing are also relatively fast.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric hair clipper driven by a brushless external rotor motor, which adopts the output power of the brushless external rotor motor to realize the output of a small volume motor with large torque and meet the shearing force requirement of a shearing end on the setting of lower rotating speed, thereby directly realizing the direct drive of the motor and having high transmission efficiency; meanwhile, the motor assembly and the swing rod transmission assembly are high in size precision, noise is reduced, the service life of a product is greatly prolonged, and user experience of the product is greatly improved.

In order to achieve the purpose, the utility model provides an electric hair clipper driven by a brushless external rotor motor, which comprises a tool bit component, a motor component and a swing rod transmission component;

the cutter head component comprises a fixed cutter blade and a movable cutter blade movably arranged on the fixed cutter blade;

the motor assembly comprises a brushless outer rotor motor, an eccentric output shaft driven by the brushless outer rotor motor to rotate, and a spherical bearing sleeved on the eccentric output shaft;

the swing rod transmission assembly is arranged between the tool bit assembly and the motor assembly and comprises a positioning pin shaft and a transmission swing rod which is sleeved on the positioning pin shaft and can rotate around the positioning pin shaft, a driving opening used for containing the spherical bearing is formed in one end, corresponding to the motor assembly, of the transmission swing rod, and one end, corresponding to the tool bit assembly, of the transmission swing rod is used for driving the movable blade to move.

Further setting the following steps: and a rotating bearing is arranged at the joint of the positioning pin shaft and the transmission swing rod, the outer ring of the rotating bearing is fixedly embedded on the transmission bearing, and the inner ring of the rotating bearing is fixedly sleeved on the positioning pin shaft.

Further setting the following steps: the cutter head assembly is arranged at the front end of the shell, the motor assembly, the swing rod transmission assembly and the power supply assembly are all arranged in the shell, and the power supply assembly provides electric energy for the motor assembly;

the fixed blade is fixedly arranged at the front end of the shell, the brushless outer rotor motor is fixedly arranged in the shell, and the positioning pin shaft is vertically and fixedly arranged on one side wall of the shell.

Further setting the following steps: the brushless outer rotor is arranged in the shell in a horizontal or vertical mode.

Compared with the prior art, the utility model has simple and reasonable structure, adopts the brushless outer rotor motor to replace the original conventional brush motor or the brushless inner rotor motor, thereby obtaining a motor with smaller volume to realize the output of large torque, realizing direct drive, greatly reducing the working noise during the operation of the electric hair clipper, simultaneously, the rotating speed output of the brushless outer rotor motor is more stable, and better operation effect can be obtained; and moreover, the spherical bearing is used as a pivot of the connecting end of the output end of the motor and the swing rod, so that the loss of friction force to a transmission part in the transmission process is reduced to the maximum extent, and the service life of the product is greatly prolonged.

Drawings

FIG. 1 is a schematic structural view of an electric hair clipper driven by a brushless external rotor motor according to the present invention;

fig. 2 is a schematic diagram of the separated structure of the cutter head assembly, the motor assembly and the swing link transmission assembly.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1. a cutter head assembly; 11. fixing a blade; 12. a movable blade; 2. a motor assembly; 21. a brushless outer rotor motor; 22. an eccentric output shaft; 23. a spherical bearing; 3. a swing rod transmission component; 31. a transmission swing rod; 311. a drive opening; 32. positioning a pin shaft; 33. a rotating bearing; 4. a housing; 5. a power supply assembly.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The utility model relates to an electric hair clipper driven by a brushless external rotor motor 21, which is shown in figure 1 and figure 2 and comprises a shell 4, a cutter head component 1, a motor component 2, a swing rod transmission component 3 and a power supply component 5; the cutter head assembly 1 is arranged at the front end part of the shell 4 and comprises a fixed blade 11 and a movable blade 12, the fixed blade 11 is fixedly connected to the front end part of the shell 4, and the movable blade 12 is movably arranged on the fixed blade 11; the motor component 2, the swing rod transmission component 3 and the power supply component 5 are arranged in the shell 4, and the power supply component 5 provides electric energy for the rotation of the motor component 2; the motor assembly 2 comprises a brushless outer rotor motor 21, an eccentric output shaft 22 driven by the brushless outer rotor motor 21 to rotate, and a spherical bearing 23 sleeved on the eccentric output shaft 22, the brushless outer rotor motor 21 is fixedly mounted on the shell 4 through a bracket, and the brushless outer rotor motor 21 can be horizontally or vertically arranged in the shell 4 according to specific requirements; the swing rod transmission component 3 is arranged between the tool bit component 1 and the motor component 2 and is used for converting the rotating force of the motor component 2 into acting force for driving the movable blade 12 to do left-right reciprocating motion, the swing rod transmission component 3 comprises a positioning pin shaft 32 and a transmission swing rod 31 which is sleeved on the positioning pin shaft 32 and can rotate directionally along the positioning pin shaft 32, the positioning pin shaft 32 is vertically and fixedly arranged on one side wall of the shell 4, a driving opening 311 for accommodating the spherical bearing 23 is formed at one end of the transmission swing rod 31 corresponding to the motor component 2, and one end of the transmission swing rod 31 corresponding to the tool bit component 1 is used for driving the movable blade 12 to do left-right reciprocating motion; therefore, when the brushless outer rotor motor 21 rotates, the eccentric output shaft 22 can be driven to rotate, so that the spherical bearing 23 can act on two side walls of the driving opening 311 of the transmission swing rod 31 to enable the transmission swing rod 31 to do left-right reciprocating swing around the positioning pin shaft 32, and simultaneously drive the movable blade 12 to do left-right reciprocating motion to match with the fixed blade 11 to realize shearing operation.

In the above scheme, preferably, a rotating bearing 33 is arranged at the connection position of the positioning pin shaft 32 and the transmission swing rod 31, an outer ring of the rotating bearing 33 is fixedly embedded on the transmission swing rod 31, and an inner ring of the rotating bearing 33 is fixedly sleeved on the positioning pin shaft 32, so that the transmission swing rod 31 can swing left and right in a reciprocating manner more flexibly.

The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An electric hair clipper driven by a brushless outer rotor motor is characterized by comprising a cutter head component, a motor component and a swing rod transmission component;

2. The electric hair clipper driven by the brushless external rotor motor as claimed in claim 1, wherein a rotary bearing is disposed at the connection of the positioning pin and the transmission swing rod, the outer ring of the rotary bearing is fixedly embedded in the transmission bearing, and the inner ring of the rotary bearing is fixedly sleeved on the positioning pin.

3. The electric hair clipper driven by the brushless external rotor motor as claimed in claim 1 or 2, further comprising a housing and a power supply assembly, wherein the cutter head assembly is mounted at the front end of the housing, the motor assembly, the swing link transmission assembly and the power supply assembly are mounted in the housing, and the power supply assembly supplies electric energy to the motor assembly;

4. An electric clipper driven by brushless external rotor motor as recited in claim 3, wherein the brushless external rotor motor is disposed horizontally or vertically inside the housing.