CN217036932U

CN217036932U - Brushless DC motor

Info

Publication number: CN217036932U
Application number: CN202121844485.4U
Authority: CN
Inventors: 朱贵星
Original assignee: Charming Electrical Appliance Co ltd
Current assignee: Charming Electrical Appliance Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-07-22
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to the technical field of brushless motors and discloses a direct-current brushless motor which comprises a heat conduction shell, wherein a heat dissipation ring is fixedly installed on the outer side of the heat conduction shell, a connecting plate is fixedly installed at the bottom of the heat dissipation ring, an installation seat is connected to the outer side of the connecting plate in a sliding mode, a motor body is fixedly installed on the inner wall of the heat conduction shell, fixing rods are fixedly installed on two sides of the inner bottom wall of the installation seat, a first damping spring is arranged on the outer side of each fixing rod, and a second damping spring is fixedly installed in the middle of the inner bottom wall of the installation seat. According to the utility model, through the matching arrangement of the connecting plate, the fixing rod, the first damping spring, the second damping spring, the connecting block and the fixing plate, the generated vibration can be buffered at the bottom of the motor body, and the transverse vibration of the motor body can be buffered through the arrangement of the rubber strip, so that the damping effect of the motor body can be effectively improved.

Description

Brushless DC motor

Technical Field

The utility model relates to the technical field of brushless motors, in particular to a direct-current brushless motor.

Background

The brushless DC motor consists of a motor body and a driver, and is a typical electromechanical integrated product. A brushless motor refers to a motor without a brush and a commutator (or a slip ring), and is also called a commutator-less motor. When the motor was first produced in the nineteenth century, the practical motor was a brushless motor, i.e., an ac squirrel cage asynchronous motor, which was widely used. However, asynchronous motors have a number of insurmountable drawbacks, which lead to slow motor technology development. Transistors were produced in the middle of the last century, and therefore, brushless dc motors using transistor commutation circuits instead of brushes and commutators have been produced. This new brushless motor, called electronically commutated dc motor, overcomes the drawbacks of the first generation brushless motors.

Some brushless dc motors currently on the market:

(1) in the working process of the motor, as the motor can generate vibration reasons when running, the vibration can generate larger noise, but the existing direct current brushless motor has poor damping effect and can not well damp the direct current brushless motor, so that the working environment can be polluted by larger noise;

(2) in the motor overrun process, because the reason of the long-time work of motor, can make the inside of motor produce more heat, but current direct current brushless motor radiating effect is relatively poor, can not well cool down direct current brushless motor, easily leads to direct current brushless motor overheated and damage.

We have therefore proposed a dc brushless motor in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the above-mentioned shortcomings in the prior art, an object of the present invention is to provide a dc brushless motor, so as to solve the problems of poor damping effect and poor heat dissipation effect of some dc brushless motors in the current market proposed in the above-mentioned prior art.

(II) technical scheme

In order to realize the purpose, the utility model is realized by the following technical scheme:

a brushless direct current motor comprises a heat conduction shell, wherein a heat dissipation ring is fixedly mounted on the outer side of the heat conduction shell, a connecting plate is fixedly mounted at the bottom of the heat dissipation ring, a mounting seat is slidably connected to the outer side of the connecting plate, and a motor body is fixedly mounted on the inner wall of the heat conduction shell;

the utility model discloses a mounting seat, including mount pad, inner diapire, connecting block, the equal fixed mounting in inner diapire both sides of mount pad has the dead lever, the outside of dead lever is provided with first damping spring, the inner diapire middle part fixed mounting of mount pad has second damping spring, second damping spring's top fixed mounting has the connecting block, the inner diapire of mount pad is close to the equal fixed mounting in both sides of second damping spring has radiator fan, the radiating groove has all been seted up to the both sides bottom of mount pad, the recess has been seted up at the top of mount pad, the equal fixed mounting in inner wall both sides of recess has the rubber strip, the equal fixed mounting in bottom both sides of connecting plate has the fixed plate.

Preferably, the heat conduction shell is made of graphene materials, the heat dissipation rings are made of aluminum alloy materials, the number of the heat dissipation rings is multiple, and the heat dissipation rings are arranged equidistantly.

Preferably, the top of the heat dissipation ring is fixedly provided with a fixing column, the top end of the fixing column is fixedly provided with a dust board, the fixing column is made of a metal copper material, and the dust board is made of a pure aluminum material.

Preferably, the connecting plate and recess looks adaptation, the outer wall and the rubber strip sliding connection of connecting plate, the connecting plate is the heat-conducting plate, a plurality of through-holes have been seted up at the top of connecting plate.

Further, the top end of the first damping spring is fixed to the bottom of the fixing plate, the bottom end of the first damping spring is fixed to the inner bottom wall of the mounting seat, the first damping spring and the second damping spring are damping springs, and the top of the connecting block is fixed to the bottom of the connecting plate.

Furthermore, the shape of fixed plate is L shape, the fixed plate is located the inside setting of mount pad, the fixed plate is with the outside sliding connection of dead lever.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) through the cooperation setting between connecting plate, dead lever, first damping spring, second damping spring, connecting block, the fixed plate, can cushion the vibrations that produce in motor body's bottom, the rethread is equipped with the rubber strip, can cushion motor body's horizontal vibrations to can effectual improvement motor body's shock attenuation effect, reduce the noise of motor body during operation.

(2) Through the cooperation setting between heat conduction casing, heat dissipation ring, the connecting plate, can be quick derive the heat on the motor body, the rethread is equipped with radiator fan, can blow air cooling in the bottom of connecting plate to cool down the connecting plate fast, and then can dispel the heat to the motor body fast, improved the radiating effect to the motor body, avoid the motor body overheated and damage.

Drawings

Fig. 1 is a schematic overall front view of a brushless dc motor according to the present invention;

FIG. 2 is a schematic perspective view of a dust guard of the brushless DC motor according to the present invention;

FIG. 3 is a schematic cross-sectional view of a heat-conducting housing of a brushless DC motor according to the present invention;

fig. 4 is a schematic cross-sectional view of a mounting base of a dc brushless motor according to the present invention.

In the figure: 1. a thermally conductive housing; 2. a heat dissipating ring; 3. fixing a column; 4. a dust guard; 5. a connecting plate; 6. a mounting seat; 7. a motor body; 8. fixing the rod; 9. a first damping spring; 10. a second damping spring; 11. connecting blocks; 12. a heat-dissipating fan; 13. a heat sink; 14. a groove; 15. a rubber strip; 16. and (5) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a dc brushless motor; the heat-conducting type motor comprises a heat-conducting shell 1, wherein a heat-radiating ring 2 is fixedly arranged on the outer side of the heat-conducting shell 1, a connecting plate 5 is fixedly arranged at the bottom of the heat-radiating ring 2, an installation seat 6 is slidably connected to the outer side of the connecting plate 5, and a motor body 7 is fixedly arranged on the inner wall of the heat-conducting shell 1;

fixing rods 8 are fixedly mounted on two sides of the inner bottom wall of the mounting seat 6, first damping springs 9 are arranged on the outer sides of the fixing rods 8, second damping springs 10 are fixedly mounted in the middle of the inner bottom wall of the mounting seat 6, a plurality of second damping springs 10 are arranged at equal intervals, connecting blocks 11 are fixedly mounted at the top ends of the second damping springs 10, cooling fans 12 are fixedly mounted on two sides, close to the second damping springs 10, of the inner bottom wall of the mounting seat 6, cooling grooves 13 are formed in the bottoms of two sides of the mounting seat 6, grooves 14 are formed in the top of the mounting seat 6, rubber strips 15 are fixedly mounted on two sides of the inner wall of each groove 14, and fixing plates 16 are fixedly mounted on two sides of the bottom of the connecting plate 5;

according to the scheme shown in FIG. 1, as a preferred technical scheme of the utility model: the heat conduction shell 1 is made of graphene materials, the heat dissipation rings 2 are made of aluminum alloy materials, the number of the heat dissipation rings 2 is multiple, and the heat dissipation rings 2 are arranged at equal intervals;

according to the scheme shown in FIG. 1, as a preferred technical scheme of the utility model: the top of the heat dissipation ring 2 is fixedly provided with a fixed column 3, the top end of the fixed column 3 is fixedly provided with a dust baffle 4, the fixed column 3 is made of a metal copper material, the dust baffle 4 is made of a pure aluminum material, and dust can be prevented from falling onto the heat conduction shell 1 by arranging the dust baffle 4;

as shown in fig. 4, as a preferred technical solution of the present invention: the connecting plate 5 is matched with the groove 14, the outer wall of the connecting plate 5 is in sliding connection with the rubber strip 15, the connecting plate 5 is a heat conducting plate, a plurality of through holes are formed in the top of the connecting plate 5, and air blown out by the radiating fan 12 can be applied to the heat conducting shell 1 through the through holes, so that the radiating effect is further improved;

according to the illustration in fig. 4, as a preferred embodiment of the present invention: the top end of the first damping spring 9 is fixed with the bottom of the fixing plate 16, the bottom end of the first damping spring 9 is fixed with the inner bottom wall of the mounting seat 6, the first damping spring 9 and the second damping spring 10 are damping springs, and the top of the connecting block 11 is fixed with the bottom of the connecting plate 5;

according to the illustration in fig. 4, as a preferred embodiment of the present invention: the fixing plate 16 is L-shaped, the fixing plate 16 is disposed inside the mounting seat 6, and the fixing plate 16 is slidably connected to the outer side of the fixing rod 8.

The working principle of the embodiment is as follows: when the brushless DC motor is used, as shown in FIGS. 1-4, the device is composed of a heat-conducting casing 1, a heat-dissipating ring 2, a mounting seat 6 and a motor body 7, in the working process of the motor body 7, the longitudinal vibration of the motor body 7 can be buffered through the extension and contraction of the first damping spring 9 and the second damping spring 10, during the buffering process, the fixing plate 16 slides on the fixing rod 8, and through the extension and contraction of the rubber strip 15, can buffer the transverse vibration of the motor body 7, when radiating, the heat on the motor body 7 is led out through the heat conducting shell 1 and the radiating ring 2, meanwhile, the heat dissipation ring 2 transfers the led-out heat to the connecting plate 5, at the moment, the heat dissipation fan 12 carries out blowing cooling on the connecting plate 5, the above is the working process of the whole device, and the content not described in detail in this specification is the prior art well known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be noted that, in the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, may be fixedly connected or detachably connected; or indirectly through an intermediary. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations; it will be apparent to those skilled in the art that modifications and equivalents may be made in the embodiments and/or portions thereof without departing from the spirit and scope of the present invention.

Claims

1. A brushless direct current motor comprises a heat conduction shell (1), and is characterized in that a heat dissipation ring (2) is fixedly mounted on the outer side of the heat conduction shell (1), a connecting plate (5) is fixedly mounted at the bottom of the heat dissipation ring (2), a mounting seat (6) is slidably connected to the outer side of the connecting plate (5), and a motor body (7) is fixedly mounted on the inner wall of the heat conduction shell (1);

the utility model discloses a damping device for the automobile, including mount pad (6), inner diapire both sides equal fixed mounting of mount pad (6) have dead lever (8), the outside of dead lever (8) is provided with first damping spring (9), inner diapire middle part fixed mounting of mount pad (6) has second damping spring (10), the top fixed mounting of second damping spring (10) has connecting block (11), the inner diapire of mount pad (6) is close to the equal fixed mounting in both sides of second damping spring (10) has radiator fan (12), radiating groove (13) have all been seted up to the both sides bottom of mount pad (6), the top of mount pad (6) is seted up flutedly (14), the equal fixed mounting in inner wall both sides of recess (14) has rubber strip (15), the equal fixed mounting in bottom both sides of connecting plate (5) has fixed plate (16).

2. A brushless dc motor according to claim 1, wherein the heat conducting casing (1) is made of graphene material, the heat dissipating rings (2) are made of aluminum alloy material, the number of the heat dissipating rings (2) is plural, and the heat dissipating rings (2) are arranged equidistantly.

3. The brushless direct current motor according to claim 1, wherein a fixing column (3) is fixedly mounted at the top of the heat dissipation ring (2), a dust board (4) is fixedly mounted at the top end of the fixing column (3), the fixing column (3) is made of a metal copper material, and the dust board (4) is made of a pure aluminum material.

4. The brushless direct current motor according to claim 1, wherein the connecting plate (5) is adapted to the groove (14), an outer wall of the connecting plate (5) is slidably connected to the rubber strip (15), the connecting plate (5) is a heat-conducting plate, and a plurality of through holes are formed in a top of the connecting plate (5).

5. A dc brushless motor according to claim 1, wherein the top end of the first damping spring (9) is fixed to the bottom of the fixing plate (16), the bottom end of the first damping spring (9) is fixed to the inner bottom wall of the mounting seat (6), the first damping spring (9) and the second damping spring (10) are damping springs, and the top of the connecting block (11) is fixed to the bottom of the connecting plate (5).

6. A brushless dc motor according to claim 1, wherein the fixing plate (16) is L-shaped, the fixing plate (16) being arranged inside the mounting seat (6), the fixing plate (16) being slidably connected to the outside of the fixing rod (8).