CN218276324U

CN218276324U - Impact-resistant permanent magnet direct current brushless motor

Info

Publication number: CN218276324U
Application number: CN202222612409.1U
Authority: CN
Inventors: 张天; 尤东庆; 张静; 张长兵; 孙芳
Original assignee: Anyang Hengan Motor Co ltd
Current assignee: Anyang Hengan Motor Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-10
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a brushless motor technical field specifically is an impact-resistant permanent magnet brushless DC motor, including protection mechanism, be equipped with brushless motor in the protection mechanism, protection mechanism includes protecting sheathing, weld in a plurality of fixed establishment in the protecting sheathing and pass protecting sheathing's water pipe, fixed establishment include the fixed plate, weld in a plurality of support columns of fixed plate upper surface, locate the rubber sheet of support column upper end and weld in a plurality of springs around the support column, when brushless motor receives the impact from the external world, impact at first by the spring link absorption part in the protecting sheathing, transmit the motor body outside by the fixed plate again on, enlarge the lifting surface area of impact force in order to reduce the influence that the impact force caused, alternate the water pipe in protecting mechanism, prevent to influence the heat dissipation of motor after covering the whole cage of motor body through protecting sheathing, alleviate motor body's radiating pressure.

Description

Impact-resistant permanent magnet direct current brushless motor

Technical Field

The utility model relates to a brushless motor technical field specifically is an impact-resistant permanent magnetism DC brushless motor.

Background

The permanent magnet brushless motor is a permanent magnet motor which is phase-changed or current-controlled by an electronic circuit and is divided into a sine wave drive mode and a square wave drive mode, the permanent magnet brushless motor is called as a permanent magnet brushless direct current motor with a rectangular wave drive current, the permanent magnet brushless direct current motor can be usually fixed by bolts and also can be usually fixed by welding, and the motor is influenced by vibration in the running process to influence the service life of the brushless motor.

The utility model discloses a grant utility model patent that bulletin number is CN109768662A discloses a DC permanent magnet brushless motor shell that takes precautions against earthquakes, this utility model includes the casing, the internally mounted of casing has motor core, motor core includes pivot, first shock attenuation shell, stator core protective housing, second shock attenuation shell and core cap, and the skin weld of casing has the fin, and the bolt is installed to the one end of casing, and the casing has the cap through bolt fixed mounting, and the inner wall of casing and cap all is equipped with damping module, damping module includes recess, damping spring, vaulting pole and cushion, and the recess has all been seted up to the inner wall of casing and cap, through the inboard at casing and cap setting damping module, and damping spring in the compression damping module produces reaction force and promotes the vaulting pole and support the buffering to motor core lower extreme surface in the middle of going up, when motor core operation in-process, utilizes damping spring to reduce the effort that vibrations produced to reach absorbing effect, thereby can effectually improve this DC brushless permanent magnet motor's life.

Although above-mentioned utility model discloses can effectively play the cushioning effect, at the in-service use in-process, except the influence that vibrations caused the motor, the impact that comes from the external world also can cause great influence to the motor, and the book states with novel directly wrapping up the motor through the shell, influences the motor heat dissipation. In view of this, we propose an impact-resistant permanent magnet brushless dc motor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an impact-resistant permanent magnet brushless DC motor to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an impact-resistant permanent magnet direct current brushless motor comprises a protection mechanism, wherein a brushless motor is arranged in the protection mechanism;

the protection mechanism comprises a protection shell, a plurality of fixing mechanisms welded in the protection shell and a water pipe penetrating through the protection shell;

the fixing mechanism comprises a fixing plate, a plurality of supporting columns welded to the upper surface of the fixing plate, rubber sheets arranged at the upper ends of the supporting columns and a plurality of springs welded to the periphery of the supporting columns, and the other ends of the springs are welded to the inner side surface of the protective shell.

As a preferred technical solution, the brushless motor includes a motor body, a front support pillar welded to a front end of a lower surface of the motor body, and rear support plates welded to both sides of a rear end of the lower surface of the motor body.

As the preferred technical scheme, the fixed plate is arc-shaped, and a rubber layer is arranged on the lower surface of the fixed plate.

Preferably, the water pipe is made of elastic material.

As a preferable technical scheme, the length of the supporting column is less than half of the length of the spring when the spring is not subjected to external force.

As a preferred technical scheme, the front supporting columns and the rear supporting plates are distributed to form isosceles triangles.

Preferably, the water pipe is tightly attached to the side surface of the motor body.

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

1. the protection mechanism is sleeved on the outer side of the brushless motor, when the brushless motor is impacted from the outside, the impact is firstly absorbed by a spring link in the protection mechanism, and then is transmitted to the outer side of the motor body through the fixing plate, so that the stress area of the impact force is enlarged, and the influence caused by the impact force is reduced.

2. The water pipe alternates in protection mechanism, prevents to influence the heat dissipation of motor through protecting sheathing with the whole cage of motor body after, alleviates motor body's radiating pressure.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the protection mechanism of the present invention;

fig. 3 is a schematic structural view of the fixing mechanism of the present invention;

fig. 4 is a schematic structural diagram of the brushless motor of the present invention.

The meaning of the individual reference symbols in the figures is:

1. a protection mechanism; 11. a protective housing; 12. a fixing mechanism; 121. a fixing plate; 122. a spring; 123. a support column; 124. a rubber sheet; 13. a water pipe;

2. a brushless motor; 21. a motor body; 22. a front support column; 23. and a rear support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment provides a technical solution:

the utility model provides an impact-resistant permanent magnet brushless DC motor, including protection machanism 1, be equipped with brushless motor 2 in the protection machanism 1, protection machanism 1 includes protecting sheathing 11, weld a plurality of fixed establishment 12 in protecting sheathing 11 and pass protecting sheathing 11's water pipe 13, fixed establishment 12 includes fixed plate 121, weld in a plurality of support columns 123 of fixed plate 121 upper surface, locate the sheet rubber 124 of support column 123 upper end and weld in a plurality of springs 122 around support column 123, the spring 122 other end welds on protecting sheathing 11 inboard surface, through the above-mentioned mechanism, make brushless motor 2 reduce the disappearance by the influence that produces when receiving external impact, can normal use after guaranteeing brushless motor 2 to receive the impact force again.

Further, brushless motor 2 includes motor body 21, weld in motor body 21 lower surface front end's preceding support column 22 and weld in motor body 21 lower surface rear end both sides back backup pad 23, and preceding support column 22 and back backup pad 23 distribute to be isosceles triangle, can be with the firm support of motor body 21 subaerial.

In this embodiment, the fixing plate 121 is arc-shaped, and a rubber layer is disposed on a lower surface of the fixing plate 121, the fixing plate 121 clings to an outer side surface of the motor body 21, and the rubber layer can absorb a part of the impact force and prevent the fixing plate 121 from colliding and scraping with the side surface of the motor body 21.

In this embodiment, the water pipe 13 is made of an elastic material, such as a rubber water pipe, so that the water pipe 13 can be deformed by itself to alleviate the impact when the water pipe is bent and subjected to an impact force.

In this embodiment, the length of the supporting column 123 is less than half of the length of the spring 122 when not subjected to an external force, and the supporting column 123 prevents the spring 122 from being subjected to an excessive force and being unable to recover.

In the present embodiment, the water pipe 13 is closely attached to the side surface of the motor body 21, facilitating heat exchange.

It should be noted that the structure and the working principle of the brushless motor 2 and the spring 122 in the present embodiment are the same as those known by those skilled in the art, and are not described herein again.

In the specific use process of the impact-resistant permanent magnet brushless direct current motor of this embodiment, first, the fixing plate 121 is pushed towards the direction of the protecting shell 11, a channel for placing the motor body 21 is reserved in the middle position, then, the protecting shell 11 is placed outside the motor body 21, the water pipe 13 penetrates through the protecting shell 11 and is tightly attached to the side surface of the motor body 21, then, when the protecting shell 11 receives external impact force, the impact force passes through the protecting shell 11, the spring 122, the fixing plate 121 is finally transmitted to the side surface of the motor body 21, partial pressure is relieved by the spring 122, the fixing plate 121 enlarges the stress area, the stress influence of the motor body 21 is reduced, and the motor body 21 is prevented from being damaged.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an impact-resistant permanent magnet brushless DC motor, includes protection mechanism (1), its characterized in that: a brushless motor (2) is arranged in the protection mechanism (1);

the protection mechanism (1) comprises a protection shell (11), a plurality of fixing mechanisms (12) welded in the protection shell (11) and a water pipe (13) penetrating through the protection shell (11);

the fixing mechanism (12) comprises a fixing plate (121), a plurality of supporting columns (123) welded to the upper surface of the fixing plate (121), a rubber sheet (124) arranged at the upper ends of the supporting columns (123) and a plurality of springs (122) welded around the supporting columns (123), wherein the other ends of the springs (122) are welded to the inner side surface of the protective shell (11).

2. The impact resistant permanent magnet brushless dc motor of claim 1, wherein: the brushless motor (2) comprises a motor body (21), a front support column (22) welded to the front end of the lower surface of the motor body (21) and a rear support plate (23) welded to two sides of the rear end of the lower surface of the motor body (21).

3. The impact resistant permanent magnet brushless dc motor of claim 1, wherein: the fixing plate (121) is arc-shaped, and a rubber layer is arranged on the lower surface of the fixing plate (121).

4. An impact resistant permanent magnet brushless dc motor according to claim 1, wherein: the water pipe (13) is made of elastic materials.

5. An impact resistant permanent magnet brushless dc motor according to claim 1, wherein: the length of the supporting column (123) is less than half of the length of the spring (122) when the spring is not subjected to external force.

6. An impact-resistant permanent magnet brushless dc motor according to claim 2, wherein: the front supporting columns (22) and the rear supporting plates (23) are distributed to form isosceles triangles.

7. The impact resistant permanent magnet brushless dc motor of claim 2, wherein: the water pipe (13) is tightly attached to the side surface of the motor body (21).