CN219458815U

CN219458815U - DC brushless motor

Info

Publication number: CN219458815U
Application number: CN202320484411.7U
Authority: CN
Inventors: 谢培杰; 丁杰
Original assignee: Ningbo Lili Mechanical Mould Co ltd
Current assignee: Ningbo Lili Mechanical Mould Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-01
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a direct current brushless motor, which relates to the technical field of motors and comprises a machine shell, wherein a stator assembly is arranged in the machine shell, a rotor assembly is arranged on one side of the stator assembly, a ventilation groove is formed in the outer portion of the machine shell, the ventilation groove is in a step shape, a wind collecting groove is formed in the outer portion of the rotor assembly, and one end of the ventilation groove is fixedly connected with one end of the wind collecting groove. According to the utility model, the ventilation groove, the wind gathering groove and the drainage plate are matched, the air is conveyed into the middle part of the wind gathering groove through the stepped ventilation groove outside the casing, and is guided to one side of the drainage plate through the wind gathering groove, so that the drainage plate can comprehensively dissipate heat of the motor, the problem that the inside of the existing direct-current brushless motor cannot dissipate heat in time, the working efficiency of the direct-current brushless motor is reduced, the service life of the direct-current brushless motor is even influenced is solved, and the effects of more comprehensive heat dissipation and larger heat dissipation efficiency of the direct-current brushless motor are achieved.

Description

DC brushless motor

Technical Field

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

Background

The brushless DC motor is a synchronous motor composed of a motor main body and a driver, and is also a typical electromechanical integrated product. The DC brushless motor has the advantages of the traditional DC motor, and simultaneously, the structure of the carbon brush and the slip ring is canceled, so that the DC brushless motor can operate at a low speed and high power. It has small volume, light weight, high stability and high efficiency, and may be used widely in automobile, automation, aviation, etc. The following problems exist in the prior art:

the existing direct current brushless motor is in work, noise is easily generated by a rotating element, so that the direct current brushless motor is inconvenient to use, meanwhile, the existing direct current brushless motor is usually sealed, the inside of the motor cannot dissipate heat timely, the working efficiency of the direct current brushless motor can be reduced, and the service life of the direct current brushless motor is even influenced.

Disclosure of Invention

The present utility model provides a brushless dc motor to solve the above-mentioned problems in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a brushless DC motor, includes the casing, the one end fixedly connected with rear end cap of casing, the other end of casing is provided with the front end housing, threaded hole is seted up at the middle part of rear end cap and front end housing, the inside of casing is provided with stator module, one side of stator module is provided with rotor module, rotor module's middle part fixedly connected with output shaft.

The technical scheme of the utility model is further improved as follows: the inside of stator module is provided with first abatvoix and second abatvoix, the inboard fixedly connected with first fly leaf of first abatvoix, the one end swing joint of first fly leaf is at the middle part of second abatvoix.

The technical scheme of the utility model is further improved as follows: the inside fixedly connected with second fly leaf of second abatvoix, the one end swing joint of second fly leaf is at the middle part of first abatvoix.

The technical scheme of the utility model is further improved as follows: the movable groove is formed in the inner sides of the first sound-absorbing plate and the second sound-absorbing plate, the middle of the movable groove is movably connected with a limiting column, the outer part of the limiting column is movably connected with a spring, and two ends of the spring are fixedly connected with the inner sides of the first sound-absorbing plate and the second sound-absorbing plate.

Adopt above-mentioned technical scheme, first abatvoix and second abatvoix in this scheme is isolated through the noise that sends the motor, when the activity of the inboard spacing post of first abatvoix and second abatvoix is in the movable slot through driving, first abatvoix and second abatvoix extrusion spring reaches shock attenuation cushioning's effect to the production of noise abatement.

The technical scheme of the utility model is further improved as follows: the inner sides of the first movable plate and the second movable plate are provided with positioning grooves, the middle parts of the positioning grooves are movably connected with positioning rods, the inner walls of the positioning grooves are fixedly connected with friction sleeves, and the two ends of each positioning rod are movably connected with the outer surfaces of the friction sleeves.

By adopting the technical scheme, when the first movable plate and the second movable plate in the scheme are movable, the positioning rod is driven to move along the positioning groove, and meanwhile, the friction force is increased by the positioning rod through contacting the outer surface of the friction sleeve, so that the buffering noise reduction effect is better.

The technical scheme of the utility model is further improved as follows: the outside of casing has seted up the ventilation groove, the ventilation groove is echelonment, the wind groove has been seted up to rotor assembly's outside, the one end fixed connection in the one end that gathers the wind groove of ventilation groove, rotor assembly's inside fixedly connected with drainage board, the one end fixed connection of drainage board is in one side that gathers the wind groove.

By adopting the technical scheme, the ventilation groove with the stepped outer part of the casing in the scheme can flow air into the middle part of the air gathering groove in a split way, and the air is guided to one side of the drainage plate through the air gathering groove, so that the drainage plate has a comprehensive heat dissipation effect on the motor.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:

1. the utility model provides a direct current brushless motor, which adopts the matching of a first sound absorbing plate, a second sound absorbing plate, a first movable plate, a second movable plate, a movable groove, a limit post, a spring, a positioning groove, a positioning rod and a friction sleeve, wherein the first sound absorbing plate and the second sound absorbing plate isolate noise emitted by a motor, and the first sound absorbing plate and the second sound absorbing plate extrude the spring to achieve the effect of damping and buffering when driving the limit post on the inner side of the first sound absorbing plate and the second sound absorbing plate to move in the movable groove, so that the noise is reduced, the first movable plate and the second movable plate drive the positioning rod to move along the positioning groove when moving, and simultaneously the positioning rod increases friction force on the outer surface of the friction sleeve through contact, so that the damping and noise reduction effect is better, the problem that the direct current brushless motor is inconvenient to use due to the noise generated by a rotating element is solved, and the effect of reducing the noise emitted when the direct current brushless motor is used.

2. The utility model provides a direct current brushless motor, which adopts the matching of a ventilation groove, a wind gathering groove and a drainage plate, wherein the ventilation groove with a stepped outer part of a machine shell can flow air into the middle part of the wind gathering groove in a split way, and the air is guided to one side of the drainage plate through the wind gathering groove, so that the effect of comprehensively radiating the motor by the drainage plate is achieved, the problems that the inside of the motor cannot radiate heat in time due to the fact that the existing direct current brushless motor is usually sealed, the working efficiency of the direct current brushless motor is reduced, the service life of the direct current brushless motor is even influenced are solved, and the effects of more comprehensive radiation and greater radiation efficiency of the direct current brushless motor are achieved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the disassembled structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of a stator assembly according to the present utility model;

fig. 4 is a schematic cross-sectional view of a housing according to the present utility model.

In the figure: 1. a housing; 2. a rear end cover; 3. a front end cover; 4. a stator assembly; 5. a rotor assembly; 6. an output shaft; 41. a first sound-absorbing panel; 42. a second sound-absorbing panel; 43. a first movable plate; 44. a second movable plate; 45. a movable groove; 46. a limit column; 47. a spring; 48. a positioning groove; 49. a positioning rod; 50. a friction sleeve; 11. a ventilation groove; 12. a wind gathering groove; 13. and a drainage plate.

Detailed Description

The utility model is further illustrated by the following examples:

example 1

As shown in fig. 1-4, the utility model provides a brushless direct current motor, which comprises a machine shell 1, wherein one end of the machine shell 1 is fixedly connected with a rear end cover 2, the other end of the machine shell 1 is provided with a front end cover 3, the middle parts of the rear end cover 2 and the front end cover 3 are provided with threaded holes, a stator assembly 4 is arranged in the machine shell 1, one side of the stator assembly 4 is provided with a rotor assembly 5, the middle part of the rotor assembly 5 is fixedly connected with an output shaft 6, a first sound-absorbing plate 41 and a second sound-absorbing plate 42 are arranged in the stator assembly 4, the inner side of the first sound-absorbing plate 41 is fixedly connected with a first movable plate 43, one end of the first movable plate 43 is movably connected with the middle part of the second sound-absorbing plate 42, the inner side of the second sound-absorbing plate 42 is fixedly connected with a second movable plate 44, one end of the second movable plate 44 is movably connected with the middle part of the first sound-absorbing plate 41, the inner side of the first sound-absorbing plate 41 and the second sound-absorbing plate 42 is provided with a movable groove 45, the middle part of the movable groove 45 is movably connected with a limit post 46, the outer part of the limit post 46 is movably connected with a spring 47, two ends of the spring 47 are fixedly connected with the inner sides of the first sound-absorbing plate 41 and the second sound-absorbing plate 42 and are movably connected with two ends of the positioning rod 48, the positioning rod 50 is movably connected with the positioning rod 48, and the positioning rod 50 is movably connected with the inner surfaces of the positioning rod 48.

In this embodiment, the noise that first acoustic board 41 and second acoustic board 42 sent through the motor is isolated, through driving the inboard spacing post 46 activity of first acoustic board 41 and second acoustic board 42 in movable groove 45, first acoustic board 41 and second acoustic board 42 extrusion spring 47 reaches the effect of shock attenuation buffering, thereby reduce the production of noise, first fly board 43 and second fly board 44 are when the activity, drive locating lever 49 along constant head tank 48 activity, the locating lever 49 increases frictional force through the surface of contact at friction sleeve 50 simultaneously, make the buffering noise reduction effect better, current brushless DC motor is in operation has been solved, easily because the rotating element produces noise, cause the inconvenient problem of brushless DC motor use, reach this brushless DC motor and have the effect of reducing the noise that sends out when using the work.

Example 2

As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the outside of casing 1 has seted up ventilation groove 11, and ventilation groove 11 is echelonment, and rotor assembly 5's outside has seted up and has gathered wind groove 12, and ventilation groove 11's one end fixed connection is in the one end that gathers wind groove 12, and rotor assembly 5's inside fixedly connected with drainage board 13, the one end fixed connection of drainage board 13 is in the one side that gathers wind groove 12.

In this embodiment, the ventilation groove 11 that casing 1 outside is echelonment can flow the air into the middle part that gathers wind groove 12, through gathering wind groove 12 drainage air to one side of drainage board 13 to make drainage board 13 carry out comprehensive radiating effect to the motor, solved current DC brushless motor and normally comparatively sealed, lead to the inside unable heat dissipation in time of motor, can lead to DC brushless motor's work efficiency to reduce, influence DC brushless motor's life's problem even, reach this DC brushless motor's heat dissipation more comprehensively, the effect that the heat dissipation efficiency is bigger.

The working principle of the brushless dc motor will be described in detail.

As shown in fig. 1-4, when using this direct current brushless motor, through rotating the screw hole with rear end cover 2 and front end housing 3 one side and fixing behind casing 1 outside, first acoustic panel 41 and second acoustic panel 42 are isolated through the noise that sends the motor, through driving the inside spacing post 46 activity of first acoustic panel 41 and second acoustic panel 42 in movable groove 45, first acoustic panel 41 and second acoustic panel 42 extrusion spring 47 reach the effect of shock attenuation buffering, thereby the production of noise reduction, first movable panel 43 and second movable panel 44 are when the activity, drive locating lever 49 along constant head tank 48 activity, the outward surface increase frictional force at friction sleeve 50 is passed through in the locating lever 49 simultaneously, make buffering noise reduction effect better, current direct current work has been solved, easily because the rotating element produces the noise, cause direct current brushless motor to use inconvenient problem, reach this direct current has the effect that reduces the noise when using the during operation, simultaneously, casing 1 outside is the effect that echelonment groove 11 can be with the air diversion wind groove 12, through the brushless motor that gathers wind groove 12, the drainage of current brushless motor, thereby the current brushless motor's of current brushless motor is more comprehensive, the current efficiency of current brushless motor is realized, the current brushless motor is more completely, the heat dissipation effect is achieved, and the current brushless motor's is more effective, and the life-time is more can's 13, and the current brushless motor is more can be more effectively reduced, and the heat dissipation effect is achieved.

The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims

1. The utility model provides a direct current brushless motor, includes casing (1), its characterized in that: one end fixedly connected with rear end cap (2) of casing (1), the other end of casing (1) is provided with front end housing (3), threaded hole has been seted up at the middle part of rear end housing (2) and front end housing (3), the inside of casing (1) is provided with stator module (4), one side of stator module (4) is provided with rotor subassembly (5), the middle part fixedly connected with output shaft (6) of rotor subassembly (5).

2. A brushless dc motor as claimed in claim 1, wherein: the inside of stator module (4) is provided with first abatvoix (41) and second abatvoix (42), the inboard fixedly connected with first fly leaf (43) of first abatvoix (41), the one end swing joint of first fly leaf (43) is at the middle part of second abatvoix (42).

3. A brushless dc motor as claimed in claim 2, wherein: the inside fixedly connected with second fly leaf (44) of second abatvoix (42), the one end swing joint of second fly leaf (44) is in the middle part of first abatvoix (41).

4. A brushless dc motor as claimed in claim 2, wherein: the novel sound-absorbing structure is characterized in that movable grooves (45) are formed in the inner sides of the first sound-absorbing plate (41) and the second sound-absorbing plate (42), limiting columns (46) are movably connected to the middle portions of the movable grooves (45), springs (47) are movably connected to the outer portions of the limiting columns (46), and two ends of each spring (47) are fixedly connected to the inner sides of the first sound-absorbing plate (41) and the inner sides of the second sound-absorbing plate (42).

5. A brushless dc motor as claimed in claim 3, wherein: the inner sides of the first movable plate (43) and the second movable plate (44) are provided with positioning grooves (48), the middle parts of the positioning grooves (48) are movably connected with positioning rods (49), the inner walls of the positioning grooves (48) are fixedly connected with friction sleeves (50), and the two ends of each positioning rod (49) are movably connected with the outer surfaces of the friction sleeves (50).

6. A brushless dc motor as claimed in claim 1, wherein: the novel air conditioner is characterized in that a ventilation groove (11) is formed in the outer portion of the casing (1), the ventilation groove (11) is in a ladder shape, an air collecting groove (12) is formed in the outer portion of the rotor assembly (5), one end of the ventilation groove (11) is fixedly connected to one end of the air collecting groove (12), a drainage plate (13) is fixedly connected to the inner portion of the rotor assembly (5), and one end of the drainage plate (13) is fixedly connected to one side of the air collecting groove (12).