CN209329839U - A kind of motor - Google Patents

Abstract

The utility model proposes a kind of motors, which is characterized in that the motor includes: erecting bed, carbon brush, contact pin and elastomeric element；One end of the elastomeric element is fixedly connected with carbon brush, and the other end of the elastomeric element is fixedly connected with the contact pin；The erecting bed is equipped with the first mounting groove, the second mounting groove and fixing groove, first mounting groove is connected to second mounting groove, the carbon brush and the elastomeric element are housed in first mounting groove, the carbon brush and the elastomeric element can slide in first mounting groove, the contact pin is fixedly connected through second mounting groove and with the erecting bed, the carbon brush is equipped with the flexible carbon brush pigtail being fixedly connected with the carbon brush, and the flexibility carbon brush pigtail is actively housed in the fixing groove.

Description

A kind of motor

Technical field

The utility model relates to technical field of motors more particularly to a kind of motors.

Background technique

Currently, motor is widely used in electronics and automation equipment industry, and deepening continuously with technical application, it is right Also higher and higher in the use and life requirements of motor, these requirements are especially prominent in equipment such as professional direct current electric power tools, Discovery is used, the element for influencing electrical machinery life is mainly manifested on carbon brush, and existing outer diameter 28mm common on the market is below Motor, structure only have beryllium copper piece brush rocker structure, and the motor of this structure with the increase of use time, is not only easy to appear deformation Offset causes the problems such as spark is increased with revolving speed decline, and the length for accommodating brush of motor using the above structure is also shorter, Very influence the service life of motor.In addition, traditional direct current micromotor generallys use the carbon brush group such as brush arm, carbon brush composition Part, is packed into rear cover after connecting with terminal, form rear case component, because of the limitation of structure thus, limits the length of carbon brush, thus Limit the service life of motor；At runtime, with the abrasion of carbon brush, the angle of brush arm is constantly changing motor, The namely relative angular position of carbon brush and magnetite is constantly changing, is causing the electric property of motor unstable.

Utility model content

To solve the above-mentioned problems, the utility model proposes motor have long service life, electric stability good Advantage.

What the utility model was achieved through the following technical solutions:

The utility model proposes a kind of motors, which is characterized in that the motor includes: erecting bed, carbon brush, contact pin and elasticity Component；One end of the elastomeric element is fixedly connected with carbon brush, and the other end of the elastomeric element is fixedly connected with the contact pin； The erecting bed is equipped with the first mounting groove, the second mounting groove and fixing groove, first mounting groove and second mounting groove Connection, the carbon brush and the elastomeric element are housed in first mounting groove, and the carbon brush and the elastomeric element can It is slided in first mounting groove, the contact pin is fixedly connected through second mounting groove and with the erecting bed, described Carbon brush is equipped with the flexible carbon brush pigtail being fixedly connected with the carbon brush, and the flexibility carbon brush pigtail is actively housed in the fixing groove It is interior.

Further, the motor further includes terminal, and third mounting groove is additionally provided on the erecting bed, and the terminal is fixed It is mounted in the third mounting groove, the terminal is connected together with the erecting bed.

Further, the motor further includes shell, and the erecting bed is fixedly connected with the shell.

Further, the motor further includes magnetite, and the interior of shell forms accommodating chamber, and the magnetite is housed in described It is fixedly connected in accommodating chamber and with the shell.

Further, the motor further includes rotor, and the rotor is flexibly connected with the shell, and the rotor is contained in In the accommodating chamber.

Further, the motor further includes cover board, and the cover board is fixedly connected with the shell, and the cover board is described in Erecting bed covers completely, and the terminal runs through the cover board.

Further, the shell is equipped with holding tank, when the erecting bed is fixedly connected with the shell, described the One mounting groove is through the holding tank and is fastened on the holding tank.

Further, the shell is equipped with heat release hole, and the heat release hole can increase the heat dissipation performance of the motor.

The utility model has the beneficial effects that

The utility model proposes erecting bed, carbon brush, contact pin, elastomeric element composition modular construction in a disguised form increase carbon brush Length, to increase the service life of motor；The modular construction of carbon brush and flexible carbon brush pigtail ensure that on carbon brush and magnetite The relative angular position of the magnetite in face, to guarantee that motor has good electric property stability.

Detailed description of the invention

Fig. 1 is the exploded view of the motor of the utility model；

Fig. 2 is the structural schematic diagram of the erecting bed of the utility model；

Fig. 3 is the perspective view of the motor of the utility model.

Specific embodiment

In order to it is clearer, completely illustrate the technical solution of the utility model, with reference to the accompanying drawing to the utility model It is described further.

Fig. 1 to Fig. 3 is please referred to, the utility model proposes a kind of motors, which is characterized in that the motor includes: erecting bed 10, carbon brush 20, contact pin 30 and elastomeric element 40；One end of the elastomeric element 40 is fixedly connected with carbon brush 20, the elastic portion The other end of part 40 is fixedly connected with the contact pin 30；The erecting bed 10 is equipped with the first mounting groove 11, the second mounting groove 12 With fixing groove 14, first mounting groove 11 is connected to second mounting groove 12, the carbon brush 20 and the elastomeric element 40 It is housed in first mounting groove 11, the carbon brush 20 and the elastomeric element 40 can be slided in first mounting groove 11 Dynamic, the contact pin 30 is fixedly connected through second mounting groove 12 and with the erecting bed 10, the carbon brush 20 be equipped with The flexible carbon brush pigtail 21 that the carbon brush 20 is fixedly connected, the flexibility carbon brush pigtail 21 are actively housed in the fixing groove 14.

In the present embodiment, the motor outer diameter can also be set according to the actual situation certainly between 18mm to 28mm Count the size of the motor outer diameter.The carbon brush 20, the contact pin 30, the elastomeric element 40, the flexible carbon brush pigtail 21 are all If there are two, they are all symmetrically mounted on the erecting bed 10.One end of the elastomeric element 40 and carbon brush 20 are fixed Connection, the other end of the elastomeric element 40 are fixedly connected with the contact pin 30, the contact pin 30 described in this way, the elastomeric element 40, the carbon brush 20 is just capable of forming a flexible overall structure, and the contact pin 30 is fixedly mounted on second peace In tankage 12, the carbon brush 20 and the elastomeric element 40 can slide in first mounting groove 11, and the motor is in work The carbon brush 20 will receive friction when making, so that the carbon brush 20 be made to cause to be lost, at this time the length of the carbon brush 20 will It shortens, but because the presence of the elastomeric element 40, shortens in a flash in the carbon brush 20, the elastomeric element 40 can handle The carbon brush 20 is promoted along first mounting groove 11 toward the centre of the motor, keeps the carbon brush 20 more durable Use, thus the service life of the increased motor.The flexibility carbon brush pigtail 21 is fixedly connected with 20 flexibility of carbon brush, The flexibility carbon brush pigtail 21 is movably arranged in the fixing groove 14, when the elastomeric element 40 pushes the carbon brush 20, institute The relative angular position that flexible carbon brush pigtail 21 is to ensure that the carbon brush 20 with magnetite inside the motor is stated, to guarantee electricity Machine has good electric property stability.

Further, the motor further includes terminal 50, and third mounting groove 13, the end are additionally provided on the erecting bed 10 Son 50 is fixedly mounted in the third mounting groove 13, and the terminal 50 is connected together with the erecting bed 10.

In the present embodiment, there are two the terminal 50 is set, the terminal 50 is symmetrically and fixedly mounted to the erecting bed On 10, the terminal 50 is fixed on the erecting bed 10, and the terminal 50 with the positive and negative anodes of power supply for connecting.

Further, the motor further includes shell 60, and the erecting bed 10 is fixedly connected with the shell 60；The electricity Machine further includes magnetite 80, forms accommodating chamber 61 inside the shell 60, the magnetite 80 be housed in the accommodating chamber 61 and with The shell 60 is fixedly connected.

In the present embodiment, the erecting bed 10 is fixedly connected with the shell 60, and the magnetite 80 is housed in described It is fixedly connected in accommodating chamber 61 and with the shell 60, the shell 60 is iron-clad, the magnetite 80, when the magnetite 80 and institute When stating shell 60 and being fixedly connected, the inner sidewall of the shell 60 is sucked.

Further, the motor further includes rotor 90, and the rotor 90 is flexibly connected with shell 60, and the rotor 90 is received It is dissolved in the accommodating chamber 61.

In the present embodiment, when the rotor 90 is housed in the accommodating chamber 61, the commutation of 90 upper end of rotor Device is contacted with the carbon brush 20, and when the rotor 90 rotation, the carbon brush 20 is just rubbed, so that 20 length of the carbon brush becomes Short, at this time, the elastomeric element 40 will push the carbon brush 20 to slide on first mounting groove 11, so that the carbon Brush 20 is always maintained at good contact with the rotor 90.

Further, the motor further includes cover board 70, and the cover board 70 is fixedly connected with the shell 60, the cover board 70 erecting beds 10 cover completely, and the terminal 50 runs through the cover board 70.

In the present embodiment, the cover board 70 is fixedly connected with the shell 60, and the cover board 70 is the erecting bed 10 cover completely, can increase the compactness of the motor internal element in this way, can protect the internal element of the motor.

Further, the shell 60 is equipped with holding tank 63, when the erecting bed 10 is fixedly connected with the shell 60 When, first mounting groove 11 is through the holding tank 63 and is fastened on the holding tank 63.

In the present embodiment, when the erecting bed 10 is fixedly mounted on the shell 60, holding tank 63 can be given First mounting groove 11 provides a spatial position.

Further, the shell 60 is equipped with heat release hole 62, and the heat release hole 62 can increase the heat dissipation of the motor Performance.

In the present embodiment, the motor can generate heat at work, and the heat release hole 62 can make described The heat that motor generates rapidly excludes, and increases the heat dissipation performance of the motor.

Certainly, the utility model can also have other numerous embodiments, be based on present embodiment, the ordinary skill of this field Personnel's obtained other embodiments under the premise of not making any creative work, belong to the utility model and are protected Range.

Claims (8)

1. a kind of motor, which is characterized in that the motor includes: erecting bed, carbon brush, contact pin and elastomeric element；The elastic portion One end of part is fixedly connected with carbon brush, and the other end of the elastomeric element is fixedly connected with the contact pin；It is set on the erecting bed Have the first mounting groove, the second mounting groove and fixing groove, first mounting groove is connected to second mounting groove, the carbon brush and The elastomeric element is housed in first mounting groove, and the carbon brush and the elastomeric element can be in first mounting grooves Interior sliding, the contact pin through second mounting groove and being fixedly connected with the erecting bed, the carbon brush be equipped with it is described The flexible carbon brush pigtail that carbon brush is fixedly connected, the flexibility carbon brush pigtail are actively housed in the fixing groove.

2. motor according to claim 1, which is characterized in that the motor further includes terminal, is also set on the erecting bed There is third mounting groove, the terminal is fixedly mounted in the third mounting groove, and the terminal is connected together with the erecting bed.

3. motor according to claim 2, which is characterized in that the motor further includes shell, the erecting bed with it is described Shell is fixedly connected.

4. motor according to claim 3, which is characterized in that the motor further includes magnetite, and the interior of shell is formed Accommodating chamber, the magnetite are housed in the accommodating chamber and are fixedly connected with the shell.

5. motor according to claim 4, which is characterized in that the motor further includes rotor, the rotor and described outer Shell is flexibly connected, and the rotor is contained in the accommodating chamber.

6. motor according to claim 3, which is characterized in that the motor further includes cover board, the cover board and described outer Shell is fixedly connected, and the cover board completely covers the erecting bed, and the terminal runs through the cover board.

7. motor according to claim 3, which is characterized in that the shell be equipped with holding tank, when the erecting bed with When the shell is fixedly connected, first mounting groove is through the holding tank and is fastened on the holding tank.

8. motor according to claim 3, which is characterized in that the shell is equipped with heat release hole, and the heat release hole can Increase the heat dissipation performance of the motor.