CN208353130U

CN208353130U - A kind of direct current micromotor

Info

Publication number: CN208353130U
Application number: CN201820892269.9U
Authority: CN
Inventors: 隆春香
Original assignee: NICHIBO MOTOR (SHENZHEN) CO Ltd
Current assignee: NICHIBO MOTOR (SHENZHEN) CO Ltd
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2019-01-08
Anticipated expiration: 2028-06-08

Abstract

The utility model proposes a kind of direct current micromotor, the direct current micromotor includes: rotor, shell and Jiao Gai；The rotor is equipped with the shaft through the rotor；Accommodating cavity is formed in the shell, the rotor is mounted in the accommodating cavity；The glue is covered equipped with multiple ventilation dustproof holes, the Jiao Gai is run through in the ventilation dustproof hole, glue base portion is also symmetrically arranged with the embedding pawl position of first be fixedly connected with the Jiao Gai, glue base portion is also symmetrically arranged with the embedding pawl position of second be fixedly connected with the Jiao Gai, when the Jiao Gai is fixedly installed on the shell, the first embedding pawl position engages with the described second embedding pawl position with the shell forms a fixed connection that the Jiao Gai is made to form a fixed connection with the shell, at this time, the ventilation dustproof hole is connected to the accommodating cavity, the shaft is through the glue lid center；The utility model proposes the Jiao Gai of direct current micromotor designed using embedding pawl position, be installed that rear structure is more stable, and concentricity is more preferable.

Description

A kind of direct current micromotor

Technical field

The utility model relates to motor field more particularly to a kind of direct current micromotors.

Background technique

Traditional direct current micromotor, which is typically employed on plastic lid, installs male terminal, female terminal, brush arm, buckle additional later again It is packed into rear case component, this structural reliability is excessively poor, and brush is easily deformed during multiple group is vertical, causes production efficiency very Low, cost of labor is big, and will cause the problems such as motor performance is unstable, the service life is short.

Utility model content

To solve the above-mentioned problems, the utility model proposes a kind of high reliablity and the simple direct current micromotors of assembly.

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

The utility model proposes a kind of direct current micromotor, the direct current micromotor includes:

Rotor；The rotor is equipped with the shaft through the rotor；

Shell；Accommodating cavity is formed in the shell, the rotor is mounted in the accommodating cavity；

Jiao Gai；The glue is covered equipped with multiple ventilation dustproof holes, and the Jiao Gai, the Jiao Gai are run through in the ventilation dustproof hole Bottom is also symmetrically arranged with the embedding pawl position of first be fixedly connected with the Jiao Gai, and glue base portion is also symmetrically arranged with and the Jiao Gai The embedding pawl position of second be fixedly connected, when the Jiao Gai is fixedly installed on the shell, the first embedding pawl position and described the Two embedding pawl positions engage with the shell forms a fixed connection that the Jiao Gai is made to form a fixed connection with the shell, at this point, The ventilation dustproof hole is connected to the accommodating cavity, and the shaft is through the glue lid center.

Further, the direct current micromotor further include: brush part；Brush part one end is brush arm, the brush The other end of part is power connecting arm, and the brush arm and the power connecting arm are integrally formed, and the brush part is mounted on the accommodating cavity It is interior and be fixedly connected with the shell.

Further, the direct current micromotor further include: electrical carbon；The electrical carbon be mounted in the accommodating cavity and with it is described Brush arm forms electrical connection.

Further, the direct current micromotor further include: commutator；The commutator be set in the shaft receiving with In the accommodating cavity, described commutator one end is electrically connected with the electrical carbon, and the commutator other end is electrically connected with the rotor.

Further, the direct current micromotor further include: magnetic element；The magnetic element is mounted in the accommodating cavity And it is fixedly connected with the shell.

The utility model has the beneficial effects that

1. the utility model proposes the brush part of direct current micromotor be used cooperatively with Jiao Gai, Jiao Gai and shell co-locate It ensure that the position of brush part, brush part is made of one piece, and possesses higher intensity and toughness, brush part is in assembling process It is one-time-reach-place, is unlikely to deform in operation, thus guarantee the stability and consistency of brush part in use, from And improve the service life of motor.

2. the utility model proposes direct current micromotor Jiao Gai using embedding pawl position design, it is more steady to be installed rear structure Fixed, concentricity is more preferable.

3. the utility model proposes the glue of direct current micromotor be covered with ventilation dustproof hole, effectively motor can be worked When the heat that generates shed and effectively can prevent large dust particle from entering inside motor, cause motor damage.

Detailed description of the invention

Fig. 1 is the fragmentary cross-sectional view of the direct current micromotor of the utility model；

Fig. 2 is the top view of the Jiao Gai of the direct current micromotor of the utility model；

Fig. 3 is the perspective view of the brush part of the direct current micromotor of the utility model；

Fig. 4 is the sectional view of the direct current micromotor 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 and Fig. 2 are please referred to, the utility model proposes a kind of direct current micromotor, the direct current micromotor includes:

Rotor 10；The rotor 10 is equipped with the shaft 11 through the rotor 10；

Shell 20；Accommodating cavity 21 is formed in the shell 20, the rotor 10 is mounted in the accommodating cavity 21；

Glue lid 30；The glue lid 30 is equipped with multiple ventilation dustproof holes 31, and the Jiao Gai is run through in the ventilation dustproof hole 31 30,30 bottom of glue lid is also symmetrically arranged with the first embedding pawl position 32 being fixedly connected with the glue lid 30,30 bottom of glue lid It is also symmetrically arranged with the second embedding pawl position 33 being fixedly connected with the glue lid 30, when the glue lid 30 is fixedly installed to the shell 20 When upper, the first embedding pawl position 32 engages with the described second embedding pawl position 33 with the shell 20 to form a fixed connection to make described Glue lid 30 forms a fixed connection with the shell 20, at this point, the ventilation dustproof hole 31 is connected to the accommodating cavity 21, described turn Axis 11 is through 30 center of glue lid.

In the present embodiment, the quantity in the ventilation dustproof hole 31 is 4, and the diameter in the ventilation dustproof hole 31 is 0.95mm；When the glue lid 30 is fixedly installed on the shell 20, the first embedding pawl position 32 and the described second embedding pawl position 33 engage with the shell 20 and form a fixed connection that the glue lid 30 is made to be installed rear structure more with the shell 20 Stablize, concentricity is more preferable, even if the direct current micromotor works in the presence of a harsh environment, the uncontrollable factors such as is shaken, will not It loosens, deforms；The ventilation dustproof hole 31 is connected to the accommodating cavity 21, when the direct current micromotor runs at high speed work, When effectively the direct current micromotor can be worked the heat that generates shed and can effectively prevent large dust particle into Enter inside the direct current micromotor, direct current micromotor is caused to damage, improves the service life of the direct current micromotor.

Please refer to Fig. 3 and Fig. 4, the direct current micromotor further include: brush part 40；Described 40 one end of brush part is brush arm 41, the other end of the brush part 40 is power connecting arm 42, and the brush arm 41 is integrally formed with the power connecting arm 42, the brush Part 40 is mounted in the accommodating cavity 21 and is fixedly connected with the shell 20.

In the present embodiment, the brush arm 41 is integrally formed with the power connecting arm 42, micro- compared to traditional direct current Motor adopts a split structure, and the brush part 40 possesses higher intensity and toughness, the brush part 40 and the glue lid 30 It is used cooperatively, the glue lid 30 co-locates the position that ensure that the brush part 40, the brush part 40 with the shell 20 It is made of one piece, possesses higher intensity and toughness, the brush part 40 is one-time-reach-place in assembling process, is being operated It is unlikely to deform in journey, to guarantee the stability and consistency of the brush part 40 in use, to improve described straight Flow the service life of micro machine.

Please refer to figs. 1 to 4, the direct current micromotor further include: electrical carbon 50；The electrical carbon 50 is mounted on the accommodating cavity It is electrically connected in 21 and with the brush arm 41 formation；The direct current micromotor further include: commutator 60；The commutator 60 is arranged With in the accommodating cavity 21, described 60 one end of commutator is electrically connected with the electrical carbon 50, described to change for receiving in the shaft 11 It is electrically connected to 60 other end of device with the rotor 10；The direct current micromotor further include: magnetic element 70；The magnetic element 70 It is mounted in the accommodating cavity 21 and is fixedly connected with the shell 20.

In the present embodiment, after the brush part 40 connects DC power supply, direct current passes through the brush part 40 Reach the electrical carbon 50, direct current by reaching the commutator 60 after electrical carbon 50, direct current by the commutator 60 it After reach the rotor 10, work in the permanent-magnetic field of the magnetic element 70 by Lorentz force after the rotor 10 is powered With the rotor 10 rotates under the action of Lorentz force.

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

1. a kind of direct current micromotor, which is characterized in that the direct current micromotor includes:

Rotor；The rotor is equipped with the shaft through the rotor；

Jiao Gai；The glue is covered equipped with multiple ventilation dustproof holes, and the Jiao Gai, glue base portion are run through in the ventilation dustproof hole It is also symmetrically arranged with the embedding pawl position of first be fixedly connected with the Jiao Gai, glue base portion is also symmetrically arranged with to be fixed with the Jiao Gai Second embedding pawl position of connection, when the Jiao Gai is fixedly installed on the shell, the first embedding pawl position and described second embedding Pawl position engages with the shell forms a fixed connection that the Jiao Gai is made to form a fixed connection with the shell, at this point, described Ventilation dustproof hole is connected to the accommodating cavity, and the shaft is through the glue lid center.

2. direct current micromotor according to claim 1, which is characterized in that the direct current micromotor further include: brush part；Institute Stating brush part one end is brush arm, the other end of the brush part be power connecting arm, the brush arm and power connecting arm one at Type, the brush part are mounted in the accommodating cavity and are fixedly connected with the shell.

3. direct current micromotor according to claim 2, which is characterized in that the direct current micromotor further include: electrical carbon；It is described Electrical carbon is mounted in the accommodating cavity and is electrically connected with brush arm formation.

4. direct current micromotor according to claim 3, which is characterized in that the direct current micromotor further include: commutator；Institute It states commutator to be set in the shaft in receiving and the accommodating cavity, described commutator one end is electrically connected with the electrical carbon, institute The commutator other end is stated to be electrically connected with the rotor.

5. direct current micromotor according to claim 4, which is characterized in that the direct current micromotor further include: magnetic element； The magnetic element is mounted in the accommodating cavity and is fixedly connected with the shell.