Large-torque low-temperature-rise brushless motor

Abstract

The utility model discloses a large-torque low-temperature-rise brushless motor, and relates to the technical field of brushless motors. The motor comprises a motor body. The side wall of the middle part of the motor body is provided with an I-shaped heat dissipation shell, the peripheral side wall of the heat dissipation shell is provided with a plurality of square openings which are annularly and uniformly distributed along the peripheral side, the interior of each square opening is provided with a heat dissipation sheet, and the surface side of the heat dissipation sheet located at the outer side of the heat dissipation shell is provided with a positioning column. The side walls, corresponding to the two end faces of the positioning column, of the heat dissipation shell are each provided with an insertion hole, and the two ends of the positioning column are each provided with an assembly rod inserted into the corresponding insertion hole. According to the utility model, the plurality of cooling fins are annularly arranged in the motor, so that rapid cooling treatment is realized, and meanwhile, the assembly rods and the insertion holes are matched for use, so that the cooling fins are disassembled and replaced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to brushless motor technical field, especially, relate to a big torque low temperature rise brushless motor. BACKGROUND

[0002] Brushless DC motor is composed of motor main body and driver, and is a typical mechatronics product. Since brushless DC motor is operated in self-control mode, it will not add starting winding on the rotor like synchronous motor under heavy load starting of frequency conversion speed regulation, and will not produce oscillation and out of step when load changes suddenly.

[0003] However, the brushless motor used will produce hot air inside after long time use, since the brushless motor does not have the effect of heat dissipation, the hot air cannot be quickly dissipated, which will cause the internal temperature of the brushless motor to rise rapidly, and since the heat sink used does not have the effect of quick disassembly, when the heat sink is damaged, it cannot be quickly replaced. Therefore, we provide a big torque low temperature rise brushless motor to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a big torque low temperature rise brushless motor, which is characterized by arranging a plurality of heat sinks in the form of a ring in the interior of the motor, thereby achieving rapid cooling treatment, and through the cooperation of the assembly rod and the plug-in hole, the heat sink can be disassembled and replaced.

[0005] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0006] The utility model discloses a big torque low temperature rise brushless motor, which comprises a motor body, a heat dissipation shell in the shape of an I-shaped ring is arranged on the side wall of the middle part of the motor body, a plurality of square openings are arranged on the peripheral side wall of the heat dissipation shell in the form of a ring and are uniformly distributed, a heat sink is arranged in each square opening, a positioning column is arranged on the surface side of each heat sink outside the heat dissipation shell, a plug-in hole is formed in the side wall of the heat dissipation shell corresponding to the end surface of the positioning column, and an assembly rod is arranged in the plug-in hole.

[0007] The utility model is further provided with an installation opening formed through the surface wall of the positioning column, and the heat sink passes through the installation opening and is fixedly connected with the positioning column.

[0008] The utility model is further provided with a movable opening formed in the two end parts of the positioning column, a limiting hole is formed in the end surface of the positioning column and is in communication with the movable opening, and one end of the assembly rod slides through the limiting hole.

[0009] The utility model is further provided with a circular plate fixed to the end part of the assembly rod in the movable opening, and the diameter of the circular plate is greater than the diameter of the limiting hole.

[0010] The utility model further sets up, the end of the round plate opposite to the assembling rod is fixed with spring, and the other end of spring is in abutment with the inner end surface of the movable mouth.

[0011] The utility model further sets up, the end of the round plate opposite to the assembling rod is fixed with spring, and the other end of spring is in abutment with the inner end surface of the movable mouth.

[0012] The utility model further sets up, the end of the round plate opposite to the assembling rod is fixed with spring, and the other end of spring is in abutment with the inner end surface of the movable mouth.

[0013] The utility model has the advantages of the following:

[0014] Since the radiating fin passes through the position of the square mouth, when the motor body works, the high-temperature gas generated in the motor body will be in abutment with the end surface of the radiating fin, and the radiating fin can heat exchange the high-temperature gas at this time, so that the interior of the motor body can be continuously cooled, and the motor body will not be rapidly heated when working.

[0015] The assembling rod is taken out from the inner position of the insertion hole, and then the positioning column is moved outwards from the outer position of the radiating shell, and the radiating fin can be directly pulled out from the inner position of the square mouth, so that the radiating fin can be disassembled and replaced.

[0016] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages above. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is a structural schematic diagram of a large-torque low-temperature-rise brushless motor.

[0019] Figure 2 It is a structural combination diagram of the radiating shell and the radiating fin in the utility model.

[0020] Figure 3 It is a structural diagram of the radiating shell in the utility model.

[0021] Figure 4 It is a structural combination diagram of the radiating fin, the positioning column and the assembling rod in the utility model.

[0022] Figure 5 This is a structural diagram of the positioning post and assembly rod in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Motor body, 2-Heat sink, 201-Square opening, 202-Plug-in hole, 3-Heat sink, 301-Positioning post, 302-Mounting port, 303-Movable port, 304-Limiting hole, 305-Adjustment port, 4-Assembly rod, 401-Round plate, 402-Spring, 403-Moving ring, 404-Adjusting block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1, please refer to Figures 1 to 5 This utility model is a high-torque, low-temperature brushless motor. By arranging multiple heat sinks 3 in a ring inside the motor body 1, rapid cooling is achieved. At the same time, the heat sinks 3 can be disassembled and replaced through the cooperation of the mounting rod 4 and the insertion hole 202.

[0027] Specifically, the motor body 1 has a heat sink 2 in the shape of an I-ring on its middle side wall. The heat sink 2 has multiple square openings 201 evenly distributed in a ring around its perimeter. Each square opening 201 has a heat sink 3 inside. Each heat sink 3 on the outer side of the heat sink 2 has a positioning post 301. The side walls of the heat sink 2 corresponding to the two ends of the positioning post 301 have insertion holes 202. Each end of the positioning post 301 has an assembly rod 4 that is inserted into the insertion hole 202. The side wall of the positioning post 301 has a through mounting opening 302. The heat sink 3 passes through the mounting opening 302 and is fixedly connected to the positioning post 301.

[0028] The operation process of this embodiment is as follows: Since the heat sink 3 passes through the square opening 201, when the motor body 1 is working, the high-temperature gas generated inside it will come into contact with the end face of the heat sink 3. At this time, the heat sink 3 will perform heat exchange treatment on the high-temperature gas, thereby continuously cooling the inside of the motor body 1 and ensuring that the motor body 1 will not heat up rapidly when it is working. At the same time, when it is necessary to disassemble a single heat sink 3, the mounting rod 4 can be taken out from the inside of the insertion hole 202. Then, the positioning pin 301 can be moved outward from the outside of the heat sink shell 2, and the heat sink 3 can be directly pulled out from the inside of the square opening 201, thereby disassembling and replacing the heat sink 3.

[0029] Example 2, please refer to Figure 1 , Figure 4 and Figure 5 Based on Example 1, the movement of the moving ring 403 is used to drive the assembly rod 4 to move, thereby improving disassembly efficiency.

[0030] Specifically, both ends of the positioning post 301 are provided with movable openings 303, and both ends of the positioning post 301 are provided with limiting holes 304 that communicate with the inside of the movable openings 303. One end of the assembly rod 4 slides through the corresponding limiting hole 304. A circular plate 401 is fixed to the end of the assembly rod 4 at the movable opening 303, and the diameter of the circular plate 401 is larger than the diameter of the limiting hole 304. A spring 402 is fixed to the end of the circular plate 401 opposite to the end of the assembly rod 4, and the other end of the spring 402 is... The inner end face of the movable opening 303 is in contact with the outer side wall of each circular plate 401. Two adjusting blocks 404 are fixedly arranged in a ring around the periphery. The periphery of the positioning post 301 is provided with adjusting openings 305 at the positions corresponding to the adjusting blocks 404. The adjusting blocks 404 slide through the corresponding positions of the adjusting openings 305. The two ends of the positioning post 301 are fitted with moving rings 403 at the positions corresponding to the circular plate 401. The adjusting blocks 404 are fixedly connected to the adjacent moving rings 403.

[0031] The operation process of this embodiment is as follows: In order to facilitate the rapid movement of the assembly rod 4 inside the insertion hole 202, the user can control the two moving rings 403 on the positioning column 301 to move relative to each other. The moving rings 403 will drive the adjusting block 404 to slide along the position of the adjusting port 305. Then the adjusting block 404 will drive the circular plate 401 to slide in the movable port 303 and compress the spring 402. As a result, the circular plate 401 will directly drive the assembly rod 4 to move out of the position inside the insertion hole 202. At the same time, when the moving rings 403 are released, the spring 402 will push the circular plate 401 and thus push the assembly rod 4, improving the stability of the assembly rod 4 inside the insertion hole 202.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-torque, low-temperature brushless motor, comprising a motor body (1); characterized in that: The motor body (1) has a heat sink shell (2) in the shape of an I-ring on its middle side wall. The heat sink shell (2) has a plurality of square openings (201) evenly distributed in a ring along its periphery. Each square opening (201) has a heat sink fin (3) inside. Each heat sink fin (3) located on the outside of the heat sink shell (2) has a positioning post (301) on its surface. Each side wall of the heat sink shell (2) corresponding to the two ends of the positioning post (301) has a plug hole (202). Each end of the positioning post (301) has an assembly rod (4) that is inserted into the plug hole (202).

2. The high-torque, low-temperature brushless motor according to claim 1, characterized in that, The side wall of the positioning post (301) has a through-hole (302), the heat sink (3) passes through the mounting hole (302), and the heat sink (3) is fixedly connected to the positioning post (301).

3. The high-torque, low-temperature brushless motor according to claim 1, characterized in that, Both ends of the positioning post (301) are provided with movable openings (303), and both ends of the positioning post (301) are provided with limiting holes (304) that communicate with the inside of the movable openings (303). One end of the assembly rod (4) slides through the corresponding limiting hole (304).

4. A high-torque, low-temperature brushless motor according to claim 3, characterized in that, The assembly rod (4) has a circular plate (401) fixed at the end of the movable opening (303), and the diameter of the circular plate (401) is larger than the diameter of the limiting hole (304).

5. A high-torque, low-temperature brushless motor according to claim 4, characterized in that, The circular plate (401) is fixed with a spring (402) at the end opposite to the assembly rod (4), and the other end of the spring (402) abuts against the inner end face of the movable opening (303).

6. A high-torque, low-temperature brushless motor according to claim 5, characterized in that, Each of the circular plates (401) has two adjusting blocks (404) that are evenly distributed in a ring around the periphery. The positioning post (301) has an adjusting port (305) at the position of the adjusting block (404) on its periphery. The adjusting blocks (404) slide through the corresponding adjusting port (305) respectively.

7. A high-torque, low-temperature brushless motor according to claim 6, characterized in that, The two ends of the positioning column (301) are fitted with moving rings (403) at the positions corresponding to the circular plate (401), and the adjusting block (404) is fixedly connected to the adjacent moving rings (403).

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