CN217115812U - Permanent magnet brushless direct current motor convenient for heat dissipation - Google Patents

Abstract

The utility model belongs to the technical field of the motor, concretely relates to brushless DC motor of permanent magnetism convenient to heat dissipation, it includes: the side wall of the shell is internally provided with a plurality of air channels; the motor shaft penetrates through the shell; the rotor, the rotor sets up on the inner wall of casing, the rotor is suitable for the drive the casing rotates, has realized the thermal row in the casing and has dispelled, reduces the temperature in the casing.

Description

Permanent magnet brushless direct current motor convenient for heat dissipation

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to permanent magnet brushless DC motor convenient to heat dissipation.

Background

The permanent magnet brushless direct current motor is a direct current motor, heat can be generated during working, the heat can be concentrated in the shell, the temperature in the shell is increased, the temperature is an important factor influencing the efficiency of the motor, and the efficiency of the motor is reduced due to the high temperature.

Therefore, there is a need to design a new permanent magnet brushless dc motor that facilitates heat dissipation based on the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a brushless DC motor of permanent magnetism convenient to heat dissipation to solve motor heat dissipation's technical problem.

In order to solve the technical problem, the utility model provides a permanent magnet brushless DC motor convenient to heat dissipation, include:

the side wall of the shell is internally provided with a plurality of air channels;

the motor shaft penetrates through the shell;

the rotor is arranged on the inner wall of the shell and is suitable for driving the shell to rotate.

Further, an air outlet of the air duct is formed in the side wall of the shell along the length direction of the motor shaft;

and the air inlet of the air duct is formed in the outer wall of the shell.

Further, the air duct is arc-shaped;

the air ducts are circumferentially arranged along the motor shaft in the side wall of the shell.

Furthermore, a plurality of support columns are arranged in the air duct along the length direction of the motor shaft.

Further, the permanent magnet brushless dc motor further includes: a stator;

the stator is arranged on the motor shaft;

the transpose is disposed about the stator.

Further, the permanent magnet brushless dc motor further includes: a heat dissipation mechanism;

the heat dissipation mechanism is disposed in the housing, and the heat dissipation mechanism is disposed on the motor shaft.

Further, the heat dissipation mechanism includes: the water box, the water pump, the water pipe and the bracket;

the bracket is arranged on the motor shaft, and the bracket is arranged inside the shell;

the water box is arranged outside the shell;

the water pump is arranged on the water box;

one end of the water pipe is connected with the water pump, and the other end of the water pipe extends into the shell through the motor shaft and then is wound on the support, and then extends into the motor shaft and penetrates out of the motor shaft to be communicated with the water box.

The utility model has the advantages that the utility model has a shell, a plurality of air channels are arranged in the side wall of the shell; the motor shaft penetrates through the shell; the rotor, the rotor sets up on the inner wall of casing, the rotor is suitable for the drive the casing rotates, has realized the thermal row in the casing and has dispelled, reduces the temperature in the casing.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a permanent magnet brushless dc motor convenient for heat dissipation according to the present invention;

fig. 2 is a schematic view of the air inlet of the present invention;

fig. 3 is a schematic view of the air outlet of the present invention;

fig. 4 is a schematic structural view of the air duct of the present invention.

In the figure:

1 is a shell, 11 is an air duct, 12 is an air outlet, 13 is an air inlet, and 14 is a support column;

2 is a motor shaft;

3 is a rotor;

4 is a stator;

5 is a heat dissipation mechanism, 51 is a water box, 52 is a water pump, 53 is a water pipe, and 54 is a bracket.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are 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 work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the present embodiment provides a permanent magnet brushless dc motor facilitating heat dissipation, including: the air conditioner comprises a shell 1, wherein a plurality of air channels 11 are formed in the side wall of the shell 1; the motor shaft 2 is arranged in the shell 1 in a penetrating mode; rotor 3, rotor 3 sets up on the inner wall of casing 1, rotor 3 is suitable for the drive casing 1 rotates, has realized the heat dissipation in casing 1, reduces the temperature in the casing 1.

In this embodiment, the air outlet 12 of the air duct 11 is opened on the side wall of the housing 1 along the length direction of the motor shaft 2; the air inlet 13 of the air duct 11 is formed in the outer wall of the housing 1, that is, the air inlet 13 is formed in the housing 1 of the arc-shaped portion of the rotating housing 1; when the housing 1 rotates, air enters the air duct 11 in the rotation direction and flows out from the air outlet 12, so that heat in the housing 1 is transferred to the air in the air duct 11, the heat is taken out by the air, and the temperature in the housing 1 is reduced.

In this embodiment, the air duct 11 is arc-shaped, and the arc shape can increase the length of the air duct 11, thereby facilitating more effective heat dissipation; the air duct 11 is arranged in the side wall of the housing 1 along the circumferential direction of the motor shaft 2.

In this embodiment, a plurality of support columns 14 are disposed in the air duct 11 along the length direction of the motor shaft 2, and since the air duct 11 formed by hollowing out the housing 1 may reduce the strength of the housing 1, the support columns 14 are disposed to compensate for the strength reduction caused by hollowing out the housing 1.

In this embodiment, the permanent magnet brushless dc motor further includes: a stator 4; the stator 4 is arranged on the motor shaft 2; the transpose is disposed around the stator 4.

In this embodiment, the permanent magnet brushless dc motor further includes: a heat dissipation mechanism 5; the heat dissipation mechanism 5 is arranged in the shell 1, the heat dissipation mechanism 5 is arranged on the motor shaft 2, and the heat dissipation mechanism 5 can dissipate heat in the shell 1 so as to improve heat dissipation efficiency.

In the present embodiment, the heat dissipation mechanism 5 includes: a water tank 51, a water pump 52, a water pipe 53 and a bracket 54; the bracket 54 is disposed on the motor shaft 2, and the bracket 54 is disposed inside the housing 1; the water box 51 is arranged outside the shell 1; the water pump 52 is arranged on the water box 51; one end of the water pipe 53 is connected with the water pump 52, and the other end of the water pipe 53 extends into the housing 1 through the motor shaft 2 and then is wound on the bracket 54, then extends into the motor shaft 2 and penetrates out of the motor shaft 2 to be communicated with the water box 51; for example, the bracket 54 may be circular, the water pipe 53 penetrates through the hollow motor shaft 2 and enters the housing 1, and then is wound on the bracket 54, and after penetrating through the motor shaft 2, the water pipe 53 is communicated with the water box 51, the water pump 52 enters the water pipe 53 of the water box 51 and then flows into the water pipe 53 positioned in the housing 1, so that heat in the housing 1 can be taken away, and then flows into the water box 51 through the water pipe 53, so that the water resource can be recycled, the water box 51 is arranged outside the housing 1, so that the temperature of the water pumped into the water pipe 53 can be far lower than the temperature in the housing 1 by cooling the water in the water box 51 through the air flow outside the housing 1; for example, a permanent magnet brushless dc motor is mounted on the hub of an electric vehicle to drive the hub to rotate, and the water box 51 may be disposed on the chassis of the vehicle to reduce the temperature of the water in the water box 51 through the air flow as the vehicle moves.

To sum up, the utility model has the advantages that through the shell 1, a plurality of air channels 11 are arranged in the side wall of the shell 1; the motor shaft 2 is arranged in the shell 1 in a penetrating mode; rotor 3, rotor 3 sets up on the inner wall of casing 1, rotor 3 is suitable for the drive casing 1 rotates, has realized the heat dissipation in casing 1, reduces the temperature in the casing 1.

The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.

In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (6)

1. The utility model provides a permanent magnetism brushless DC motor convenient to heat dissipation which characterized in that includes:

the side wall of the shell is internally provided with a plurality of air channels;

the motor shaft penetrates through the shell;

the rotor is arranged on the inner wall of the shell and is suitable for driving the shell to rotate;

an air outlet of the air duct is formed in the side wall of the shell along the length direction of the motor shaft;

and the air inlet of the air duct is formed in the outer wall of the shell.

2. The permanent magnet brushless DC motor facilitating heat dissipation according to claim 1,

the air duct is arc-shaped;

the air ducts are circumferentially arranged along the motor shaft in the side wall of the shell.

3. The permanent magnet brushless DC motor facilitating heat dissipation according to claim 1,

and a plurality of supporting columns are arranged in the air duct along the length direction of the motor shaft.

4. The permanent magnet brushless DC motor facilitating heat dissipation according to claim 1,

the permanent magnet brushless dc motor further includes: a stator;

the stator is arranged on the motor shaft;

the rotor is disposed around the stator.

5. The permanent magnet brushless DC motor facilitating heat dissipation according to claim 1,

the permanent magnet brushless dc motor further includes: a heat dissipation mechanism;

the heat dissipation mechanism is disposed in the housing, and the heat dissipation mechanism is disposed on the motor shaft.

6. The permanent magnet brushless DC motor facilitating heat dissipation according to claim 5,

the heat dissipation mechanism includes: the water box, the water pump, the water pipe and the bracket;

the bracket is arranged on the motor shaft, and the bracket is arranged inside the shell;

the water box is arranged outside the shell;

the water pump is arranged on the water box;

one end of the water pipe is connected with the water pump, and the other end of the water pipe extends into the shell through the motor shaft and then is wound on the support, and then extends into the motor shaft and penetrates out of the motor shaft to be communicated with the water box.

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