WO2020199343A1

WO2020199343A1 - Dustproof heat dissipation cover of brushless electric motor

Info

Publication number: WO2020199343A1
Application number: PCT/CN2019/090638
Authority: WO
Inventors: 肖杰
Original assignee: 南京胜捷电机制造有限公司
Priority date: 2019-04-02
Filing date: 2019-06-11
Publication date: 2020-10-08
Also published as: CN209562291U

Abstract

Disclosed is a dustproof heat-dissipation cover of a brushless electric motor, the dustproof heat-dissipation cover comprising a protection cover (1) and a mounting plate (18), wherein a brushless electric motor (2) is arranged inside the protection cover (1); short heat-dissipation rods (3) are fixedly connected, at equal intervals, to surfaces of the two opposite sides of an inner wall of the protection cover (1); a partition plate (4) is fixedly connected between the two opposite sides of the inner wall of an upper portion of the protection cover (1); long heat-dissipation rods (5) are fixedly connected, at equal intervals, to two sides of the partition plate (4); heat-dissipation fans (6) are arranged in the middle of the partition plate (4) and on front and rear sides of the protection cover (1); and air outlets (7) are provided, at equal intervals, in the inner wall of the protection cover (1) and at positions corresponding to the heat-dissipation fans (6). The present technical solution relates to the technical field of electric motors. The dustproof heat-dissipation cover of a brushless electric motor solves the problem that the used brushless electric motor is installed in an exposed or sealed manner, where the exposed installation easily causes internal components to be damaged due to dust accumulation after long-term use and reduces the service life of the electric motor, and the sealed installation easily causes failure of the electric motor due to the poor heat-dissipation effect and increases the potential safety hazards.

Description

Dust-proof heat dissipation cover of brushless motor

Technical field

The utility model relates to the technical field of motors, in particular to a dust-proof heat dissipation cover of a brushless motor.

Background technique

The brushless motor is composed of the motor main body and the driver. It is a typical mechatronic product. Since the brushless DC motor operates in a self-controlled manner, it will not be on the rotor like a synchronous motor started under heavy load under variable frequency speed regulation. With the addition of the start winding, it will not oscillate and lose step when the load changes suddenly. It is widely used in many fields such as model airplanes, medical equipment, household appliances, electric vehicles, etc. The brushless motors currently in use are bare or sealed installations. Long-term use of bare installations can easily cause internal components to be damaged due to dust accumulation, reduce the service life of the motor, and the sealed installation has poor heat dissipation effects, which can easily cause motor failures and increase safety risks.

Utility model content

(1) Technical problems solved

Aiming at the shortcomings of the prior art, the present utility model provides a dust-proof heat dissipation cover for brushless motors, which solves the problem that the brushless motors used are exposed or sealed. Long-term use of exposed installations is likely to cause dust accumulation and damage to internal components. The service life of the motor and the poor heat dissipation effect of sealed installation can easily lead to motor failure and increase the problem of potential safety hazards.

(2) Technical solution

In order to achieve the above objectives, the present utility model is achieved through the following technical solutions: a dust-proof heat dissipation cover for a brushless motor, comprising a protective cover and a mounting plate, the brushless motor is arranged inside the protective cover, and the inner wall of the protective cover Short radiating rods are fixedly connected to the surfaces on opposite sides at equal intervals, partitions are fixedly connected to opposite sides of the inner wall of the upper part of the protective cover, and long heat radiating rods are fixedly connected to both sides of the partition at equal intervals. The middle of the plate and the front and rear sides of the protective cover are provided with cooling fans. The inner wall of the protective cover and the positions corresponding to the cooling fans are provided with air outlets at equal intervals. The top center of the protective cover is provided with air inlets. A fixed frame is fixedly connected to the inner wall of the air inlet groove, dust filter cotton is arranged inside the fixed frame, a controller is fixedly connected to the bottom side of the partition, and the protective cover is close to the inner wall of the controller. A temperature sensor is fixedly connected to the side.

Preferably, a fixing frame is fixedly connected to the surface of the heat dissipation fan, the top of the fixing frame is fixedly connected to the inner wall of the shield, the bottom of the fixing frame is fixedly connected to the top of the partition, and the air outlet is Tilt down design.

Preferably, the end of the short heat dissipation rod close to the inner wall of the protective cover is fixedly connected with a heat absorption plate, the middle part of the long heat dissipation rod is fixedly connected with a heat dissipation plate, and the front ends of the short heat dissipation rod and the long heat dissipation rod are both located in the protective cover. external.

Preferably, the protective cover is provided with a metal sealing ring at a position corresponding to the output shaft of the brushless motor, and the inside of the metal sealing ring is rotatably connected with the output shaft of the brushless motor.

Preferably, both sides of the bottom of the protective cover and the brushless motor are fixedly connected to the surface of the mounting plate by bolts.

Preferably, both the short heat dissipation rod and the long heat dissipation rod adopt a flat design.

(3) Beneficial effects

The utility model provides a dustproof heat dissipation cover for a brushless motor. Has the following beneficial effects:

(1) The dust-proof heat dissipation cover of the brushless motor is fixedly connected with short heat dissipation rods at equal intervals through the inner wall of the protection cover on opposite sides, and the two sides of the partition are fixed and connected with long heat dissipation rods at equal intervals. There are cooling fans on the front and back sides of the protective cover to achieve the protection and sealing of the motor by the protective cover to avoid dust from entering, and then use the cooling rod to export the internal heat, and cooperate with the cooling fan to speed up the internal air circulation and facilitate heat exchange , Improve the heat dissipation effect and ensure the normal operation of the motor.

(2) The dust-proof heat dissipation cover of the brushless motor is fixedly connected to the controller through the bottom side of the partition, and the temperature sensor is fixedly connected to the inner wall side of the protective cover close to the controller, so that the temperature sensor is used to realize protection The internal temperature of the cover is monitored. If the temperature is not high, the heat dissipation rod is used to dissipate heat. If the internal temperature is too high, the controller turns on the heat dissipation fan to improve the heat dissipation effect, increase the flexibility of the device, and realize energy saving.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a side view of the structure of the utility model;

Figure 3 is an enlarged view of the structure A of the utility model.

In the picture: 1 protective cover, 2 brushless motors, 3 short heat dissipation rods, 4 partitions, 5 long heat dissipation rods, 6 heat dissipation fans, 7 air outlets, 8 air inlet slots, 9 fixed frames, 10 dust filters, 11 controls Sensor, 12 temperature sensor, 13 fixing frame, 14 heat absorption plate, 15 heat dissipation plate, 16 metal sealing ring, 17 bolts, 18 mounting plate.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

Please refer to Figures 1-3. This utility model provides a technical solution: a dust-proof heat dissipation cover for a brushless motor, which includes a protective cover 1 and a mounting plate 18. A brushless motor 2 is arranged inside the protective cover 1 to realize sealed installation To prevent dust from entering and protect the motor at the same time, the inner wall of the protective cover 1 is fixedly connected with short heat dissipation rods 3 at equal intervals on the opposite sides of the inner wall, and the partition 4 and the partition 4 are fixedly connected between the opposite sides of the upper inner wall of the protective cover 1 Long heat dissipation rods 5 are fixedly connected to both sides at equal intervals to achieve heat dissipation. The middle of the partition 4 and the front and rear sides of the protective cover 1 are equipped with cooling fans 6 to improve air circulation and accelerate the heat dissipation effect. The inner wall and the position corresponding to the cooling fan 6 are provided with air outlets 7 at equal intervals. The top center of the protective cover 1 is provided with an air inlet groove 8 to facilitate air flow. The inner wall of the air inlet groove 8 is fixedly connected with a fixed frame 9 for fixing A dust filter 10 is arranged inside the frame 9 to prevent dust in the cover. The bottom side of the partition 4 is fixedly connected to a controller 11 to control the switch of the cooling fan. The protective cover 1 is fixedly connected to the inner wall side of the controller 11 The temperature sensor 12 is convenient for monitoring the temperature in the cover. The surface of the cooling fan 6 is fixedly connected with a fixing frame 13, the top of the fixing frame 13 is fixedly connected with the inner wall of the protective cover 1, and the bottom of the fixing frame 13 is fixedly connected with the top of the partition 4, To meet the structural requirements, the air outlet 7 is designed to be inclined downwards to prevent dust from entering. The end of the short heat dissipation rod 3 close to the inner wall of the protective cover 1 is fixedly connected with the heat absorption plate 14 to improve the internal heat conduction effect. The middle part of the long heat dissipation rod 5 is fixed The heat dissipation plate 15 is connected to cooperate with the heat dissipation fan to improve the heat dissipation effect. The front ends of the short heat dissipation rod 3 and the long heat dissipation rod 5 are both located outside the protective cover 1 to achieve heat dissipation. The protective cover 1 corresponds to the output shaft of the brushless motor 2 A metal sealing ring 16 is provided. The inside of the metal sealing ring 16 is rotatably connected with the output shaft of the brushless motor 2 to improve the sealing performance of the output shaft connection. The bottom sides of the protective cover 1 and the brushless motor 2 are both connected to the mounting plate through bolts 17 The surface of the 18 is fixed and connected, which is convenient for fixing the device. Both the short heat dissipation rod 3 and the long heat dissipation rod 5 adopt a flat design to increase the surface area and improve the heat conduction and heat dissipation effect.

When in use, the brushless motor 2 is fixed to the mounting plate 18 by bolts 17, and then the protective cover 1 is put on the outside of the brushless motor 2, and the output shaft of the brushless motor 2 passes through the metal sealing ring 16, and then The protective cover 1 is fixed to the mounting plate 18 by bolts 17 to realize the sealed installation of the brushless motor to avoid dust from entering. The temperature sensor 12 is used to monitor the internal temperature of the protective cover. When the internal temperature of the protective cover 1 is not high, the short heat dissipation rod 3 and The long heat dissipating rod 5 realizes internal heat dissipation, and realizes heat dissipation by means of external air heat exchange. If the internal temperature of the protective cover 1 is too high, the controller 11 turns on the cooling fan 6 and cooperates with the air outlet 7 to accelerate the internal air circulation, thereby speeding up the heat transfer. Thermal efficiency improves the overall heat dissipation effect and ensures the operating environment of the brushless motor 2.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes Other elements of, or also include elements inherent to this process, method, article or equipment. Without more restrictions. The sentence "including an element defined by ... does not exclude the existence of other identical elements in the process, method, article, or equipment including the element."

Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it will be understood that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present utility model. , Replacements and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A dust-proof heat dissipation cover for a brushless motor, comprising a protective cover (1) and a mounting plate (18), characterized in that: a brushless motor (2) is arranged inside the protective cover (1), and the protective cover ( 1) The inner wall of the protective cover (1) is fixedly connected with short heat dissipation rods (3) at equal distances from the opposite sides of the inner wall, and partitions (4) are fixedly connected between the opposite sides of the inner wall of the upper part of the protective cover (1). Long radiating rods (5) are fixedly connected to both sides of) at equal distances. The middle of the partition (4) and the front and rear sides of the protective cover (1) are provided with cooling fans (6). The protective cover ( The inner wall of 1) and the position corresponding to the cooling fan (6) are provided with air outlets (7) at equal intervals. The top center of the protective cover (1) is provided with an air inlet groove (8), and the air inlet groove A fixed frame (9) is fixedly connected to the inner wall of (8), a dust filter (10) is arranged inside the fixed frame (9), and a controller (11) is fixedly connected to the bottom side of the partition (4) A temperature sensor (12) is fixedly connected to the side of the protective cover (1) close to the inner wall of the controller (11).
The brushless motor dust-proof heat dissipation cover according to claim 1, characterized in that: the surface of the heat dissipation fan (6) is fixedly connected with a fixing frame (13), and the top of the fixing frame (13) is connected to the protection The inner wall of the cover (1) is fixedly connected, the bottom of the fixing frame (13) is fixedly connected to the top of the partition (4), and the air outlet (7) is designed to be inclined downward.
The brushless motor dust-proof and heat-dissipating cover according to claim 1, characterized in that: the end of the short heat-dissipating rod (3) close to the inner wall of the protective cover (1) is fixedly connected with a heat-absorbing plate (14), and The middle part of the long heat dissipation rod (5) is fixedly connected with a heat dissipation plate (15), and the front ends of the short heat dissipation rod (3) and the long heat dissipation rod (5) are both located outside the protective cover (1).
The brushless motor dust-proof heat dissipation cover according to claim 1, wherein the protective cover (1) is provided with a metal sealing ring (16) at a position corresponding to the output shaft of the brushless motor (2), The inside of the metal sealing ring (16) is rotatably connected with the output shaft of the brushless motor (2).
The brushless motor dust-proof heat dissipation cover according to claim 1, characterized in that: both sides of the bottom of the protective cover (1) and the brushless motor (2) are connected by bolts (17) and mounting plates (18). ) The surface is fixedly connected.
The dust-proof heat dissipation cover of a brushless motor according to claim 1, wherein the short heat dissipation rod (3) and the long heat dissipation rod (5) are designed in a flat shape.