CN216649470U

CN216649470U - Heat dissipation type DC brushless motor

Info

Publication number: CN216649470U
Application number: CN202123417386.0U
Authority: CN
Inventors: 赵冰; 房友谊; 孟国庆
Original assignee: Shandong Hart Transmission Technology Co ltd
Current assignee: Shandong Hart Transmission Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-31
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a heat dissipation type direct current brushless motor, which comprises a motor, wherein an output shaft is arranged on one side of the motor; a protective cover is fixed on one side of the motor, which is far away from the output shaft, and a heat dissipation assembly is arranged inside the protective cover; the heat dissipation assembly comprises a heat conduction plate and a spiral heat dissipation copper pipe, the heat conduction plate is fixedly connected with the inner wall of one side of the motor, and the spiral heat dissipation copper pipe is fixed on one side close to the ventilation opening through a support. According to the utility model, heat generated by the operation of the motor is conducted to the spiral heat-radiating copper pipe through the heat-conducting plate, and the rotor in the motor can drive the transmission rod and the fan blades to synchronously rotate when rotating, so that the fan can be used for fanning towards the spiral heat-radiating copper pipe to radiate heat and cool the motor; the blower and the air exhaust blow air to the interior of the motor, so that heat in the motor is exhausted outwards through the air outlet hole at the top, and the emission of the heat in the motor is accelerated; the heat inside the motor is conducted to the outside through the heat dissipation plate, and the heat is exchanged with the external environment to assist in heat dissipation.

Description

Heat dissipation type DC brushless motor

Technical Field

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

Background

Brushless motors are also known as commutatorless motors and commutatorless dc motors. It uses semiconductor inverter to replace the mechanical commutator in general DC motor, and forms the DC motor without commutator. The motor is composed of a motor main body and a driver, and is a typical mechatronic product. Because the brushless DC motor is operated in a self-control mode, a starting winding is not additionally arranged on a rotor like a synchronous motor which is started under the condition of variable frequency and speed regulation and does not generate oscillation and step-out when the load suddenly changes. The permanent magnet of the brushless DC motor with medium and small capacity is mostly made of rare earth neodymium iron boron material with high magnetic energy product. Therefore, the volume of the rare earth permanent magnet brushless motor is reduced by one machine seat number compared with that of a same-capacity three-phase asynchronous motor. Due to the excellent performance of the brushless motor, the brushless motor has wide application in various large-scale production environments.

The existing direct current brushless motor has poor heat dissipation performance, cannot actively dissipate heat, only depends on heat dissipation holes on the inner wall of the direct current brushless motor to dissipate heat, has low heat dissipation speed and poor effect, and is easy to damage the motor due to heat accumulation when the direct current brushless motor runs for a long time. Therefore, a heat dissipation type dc brushless motor is needed, which can actively dissipate heat, has a fast heat dissipation speed and a good effect, and can protect the motor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a heat dissipation type dc brushless motor to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme:

a heat dissipation type direct current brushless motor comprises a motor, wherein an output shaft is arranged on one side of the motor; a protective cover is fixed on one side of the motor, which is far away from the output shaft, and a heat dissipation assembly is arranged inside the protective cover; the heat dissipation assembly comprises a heat conduction plate and a spiral heat dissipation copper pipe, the heat conduction plate is fixedly connected with the inner wall of one side of the motor, the spiral heat dissipation copper pipe is fixed on one side close to the ventilation opening through a support, and two ends of the spiral heat dissipation copper pipe are fixedly connected with the heat conduction plate; the fan blades are rotatably connected to the middle position between the heat conducting plate and the spiral radiating copper pipe through a transmission rod, one end of the transmission rod penetrates through the inner wall of one side of the motor and extends into the motor, and one end of the transmission rod is fixedly connected with one end of a motor rotor.

As a further scheme of the utility model: an air outlet is formed in the middle of the inner wall of the top of the motor, and a dust screen is fixed in the air outlet.

As a still further scheme of the utility model: the middle position embedding of motor bottom inner wall is fixed with the gas row, evenly seted up a plurality of gas pockets on the top inner wall of gas row.

As a still further scheme of the utility model: and an air blower is arranged on one side below the motor, one end of an air outlet pipe of the air blower is fixedly connected with an air inlet end of the air exhaust, and one end of an air inlet pipe of the air blower is fixedly provided with an activated carbon filter box.

As a still further scheme of the utility model: the middle positions of the inner walls of the front side and the rear side of the motor are fixedly embedded with heat dissipation plates.

As a still further scheme of the utility model: the middle position of the inner wall of the protective cover far away from one side of the motor is provided with a ventilation opening, and a dustproof net is fixed in the ventilation opening.

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

1. the heat generated by the operation of the motor is conducted to the spiral heat-dissipation copper pipe through the heat-conducting plate, and the rotor in the motor can drive the transmission rod and the fan blades to synchronously rotate when rotating, so that the fan can blow air towards the spiral heat-dissipation copper pipe, the heat in the copper pipe is blown out from the ventilation opening, and the heat dissipation and the temperature reduction of the motor are realized;

2. the blower and the air exhaust blow air to the interior of the motor, so that heat in the motor is exhausted outwards through the air outlet hole in the top, and the emission of the heat in the motor is accelerated;

3. the heat inside the motor is conducted to the outside through the heat dissipation plate, and the heat is exchanged with the external environment to assist in heat dissipation.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of a heat dissipation assembly in embodiment 1 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a schematic side view of the motor and the heat sink in embodiment 2 of the present invention.

Notations for reference numerals: 1-motor, 2-output shaft, 3-protective cover, 4-heat dissipation component, 41-heat conduction plate, 42-transmission rod, 43-fan blade, 44-bracket, 45-spiral heat dissipation copper pipe, 5-ventilation opening, 6-air outlet, 7-air exhaust, 8-blower, 9-active carbon filter box and 10-heat dissipation plate.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the utility model. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1-2, in an embodiment of the present invention, a heat dissipation type dc brushless motor includes a motor 1, an output shaft 2 is disposed at one side of the motor 1, a protective cover 3 is fixed at one side of the motor 1 away from the output shaft 2, and a heat dissipation assembly 4 is disposed inside the protective cover 3; a ventilation opening 5 is formed in the middle of one side, away from the motor 1, of the inner wall of the protective cover 3, and a dustproof net is fixed in the ventilation opening 5;

the heat dissipation assembly 4 comprises a heat conduction plate 41 and a spiral heat dissipation copper pipe 45, the heat conduction plate 41 is fixedly connected with the inner wall of one side of the motor 1, the spiral heat dissipation copper pipe 45 is fixed on one side close to the ventilation opening 5 through a support 44, and two ends of the spiral heat dissipation copper pipe 45 are fixedly connected with the heat conduction plate 41; the fan blades 43 are rotatably connected to the middle position between the heat conducting plate 41 and the spiral heat dissipation copper pipe 45 through a transmission rod 42, one end of the transmission rod 42 penetrates through the inner wall of one side of the motor 1 and extends into the motor 1, and one end of the transmission rod 42 is fixedly connected with one end of a rotor of the motor 1.

Example 2

Referring to fig. 3 to 4, on the basis of embodiment 1, an air outlet 6 is formed in the middle of the inner wall of the top of the motor 1, and a dust screen is fixed in the air outlet 6; an air bar 7 is embedded and fixed in the middle of the inner wall of the bottom of the motor 1, and a plurality of air holes are uniformly formed in the inner wall of the top of the air bar 7; an air blower 8 is installed on one side below the motor 1, one end of an air outlet pipe of the air blower 8 is fixedly connected with an air inlet end of the air exhaust 7, and an active carbon filter box 9 is fixed at one end of an air inlet pipe of the air blower 8; and heat dissipation plates 10 are embedded and fixed in the middle positions of the inner walls of the front side and the rear side of the motor 1.

When the heat dissipation device is used, heat generated by the operation of the motor 1 is conducted to the spiral heat dissipation copper pipe 45 through the heat conduction plate 41, and a rotor in the motor 1 can drive the transmission rod 42 and the fan blades 43 to synchronously rotate when rotating, so that air can be blown towards the spiral heat dissipation copper pipe 45, the heat in the copper pipe is blown out from the ventilation opening 5, and the heat dissipation and the temperature reduction of the motor are realized; the blower 8 and the air outlet 7 blow air to the interior of the motor 1, so that heat in the motor is discharged from the air outlet 6 at the top, and the discharge of the heat in the motor is accelerated; the heat inside the motor is conducted to the outside through the heat dissipation plate 10, and exchanges heat with the external environment to assist in heat dissipation.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A heat dissipation type direct current brushless motor comprises a motor (1), wherein an output shaft (2) is arranged on one side of the motor (1); the motor is characterized in that a protective cover (3) is fixed on one side of the motor (1) far away from the output shaft (2), and a heat dissipation assembly (4) is arranged inside the protective cover (3); the heat dissipation assembly (4) comprises a heat conduction plate (41) and a spiral heat dissipation copper pipe (45), the heat conduction plate (41) is fixedly connected with the inner wall of one side of the motor (1), the spiral heat dissipation copper pipe (45) is fixed on one side close to the ventilation opening (5) through a support (44), and two ends of the spiral heat dissipation copper pipe (45) are fixedly connected with the heat conduction plate (41); the middle position between heat-conducting plate (41) and spiral heat dissipation copper pipe (45) is rotated through transfer line (42) and is connected with flabellum (43), the one end of transfer line (42) is passed motor (1) one side inner wall and is extended to the one end fixed connection of the inside and transfer line (42) of motor (1) rotor of motor (1).

2. The heat dissipation type brushless DC motor according to claim 1, wherein an air outlet (6) is formed in the middle of the inner wall of the top of the motor (1), and a dust screen is fixed in the air outlet (6).

3. The heat dissipation type DC brushless motor according to claim 2, wherein the air bar (7) is embedded and fixed in the middle position of the bottom inner wall of the motor (1), and a plurality of air holes are uniformly formed in the top inner wall of the air bar (7).

4. The heat dissipation type direct current brushless motor according to claim 3, wherein a blower (8) is installed at one side below the motor (1), one end of an air outlet pipe of the blower (8) is fixedly connected with an air inlet end of the air exhaust bank (7), and one end of an air inlet pipe of the blower (8) is fixedly provided with an activated carbon filter box (9).

5. The heat dissipation type DC brushless motor according to claim 4, wherein the heat dissipation plate (10) is embedded and fixed in the middle position of the inner wall of the motor (1) at the front and back sides.

6. The heat dissipation type brushless direct current motor according to claim 1 or 5, wherein a ventilation opening (5) is formed in the middle of one side, away from the motor (1), of the inner wall of the protective cover (3), and a dust screen is fixed in the ventilation opening (5).