An explosion-proof motor

By installing a heat dissipation device at the lower end of the motor body, including an outer casing, a mounting plate, and a cooling fan, the problems of poor heat dissipation and inconvenient installation and disassembly of explosion-proof motors are solved, achieving convenient heat dissipation and maintenance.

CN224459541UActive Publication Date: 2026-07-03ZHEJIANG HONGDA GRP WENLING DAFENG ELECTRONICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG HONGDA GRP WENLING DAFENG ELECTRONICS
Filing Date
2025-06-26
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing explosion-proof motors have poor heat dissipation and are inconvenient to install and disassemble.

Method used

A heat dissipation device is installed at the lower end of the motor body, including an outer casing, a mounting plate, and a cooling fan. It is easy to install and remove through positioning components and a return spring, and is combined with heat sinks for heat dissipation.

Benefits of technology

It improves heat dissipation, facilitates installation and disassembly, and makes repair and maintenance easier.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224459541U_ABST
    Figure CN224459541U_ABST
Patent Text Reader

Abstract

This utility model provides an explosion-proof motor, belonging to the field of motor technology. It solves the problems of poor heat dissipation and inconvenient installation in existing explosion-proof motor heat dissipation devices. This explosion-proof motor includes a motor body, with a front end cover and a rear end cover respectively at the front and rear ends. A support base is provided at the lower end of the motor body. A fixing part is integrally formed at the lower end of the motor body, and a slot communicating with the interior of the motor body is opened within the fixing part. A heat dissipation device for heat dissipation is detachably installed within the fixing part. The heat dissipation device includes a housing, a mounting plate, and two cooling fans. Several heat dissipation holes are opened at the upper end of the housing. A positioning component for positioning the heat dissipation device is provided on the fixing part. The positioning component consists of a positioning element and a return spring. Positioning holes are opened on the housing. This utility model has the advantages of heat dissipation function and easy installation and disassembly.
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Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and specifically relates to an explosion-proof motor. Background Technology

[0002] An explosion-proof motor is a type of motor that can be used in flammable and explosive environments. It does not produce electrical sparks during operation and has a heat dissipation mechanism on its outer end. Therefore, it is also called an explosion-proof motor with a heat dissipation mechanism on its outer end. As a major power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery.

[0003] Existing heat dissipation methods involve installing heat sinks on the walls of the explosion-proof housing for timely heat dissipation. However, these heat sinks only help dissipate heat from the housing itself, and their effectiveness is generally limited. Heat dissipation within the housing is primarily achieved through fans. Furthermore, existing explosion-proof motor cooling devices suffer from poor heat dissipation, inconvenience in motor positioning during installation, and difficulty in removing and installing the protective cover. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an explosion-proof motor that has heat dissipation function and is easy to install and disassemble.

[0005] The objective of this utility model can be achieved through the following technical solution: An explosion-proof motor includes a motor body, with a front end cover and a rear end cover respectively provided at the front and rear ends of the motor body, and a support base provided at the lower end of the motor body. The lower end of the motor body is characterized by an integrally formed fixing part, and the fixing part has a slot communicating with the interior of the motor body. A heat dissipation device for heat dissipation is detachably provided within the fixing part. The heat dissipation device includes a housing, a mounting plate, and two cooling fans. The housing is mounted on the mounting plate, and the cooling fans are located within the housing. The upper end of the housing has several heat dissipation holes. The fixing part is provided with a positioning component for positioning the heat dissipation device. The positioning component consists of a positioning element and a return spring. The housing has a positioning hole that matches the positioning element in the positioning component. The positioning element connects with the positioning hole through the action of the return spring, thereby fixing the heat dissipation device to the fixing part.

[0006] In the aforementioned explosion-proof motor, the fixing part is provided with an installation groove for mounting the positioning component, the reset spring is disposed in the installation groove, and one end of the positioning component extends out of the fixing part and is provided with a connecting part.

[0007] In the aforementioned explosion-proof motor, the size of the outer casing is the same as the slot opened in the fixing part, and one end of the outer casing extends into the slot of the fixing part.

[0008] In the aforementioned explosion-proof motor, several heat sinks are provided on the outer side of the motor body.

[0009] Compared with the prior art, this explosion-proof motor has a heat dissipation function by providing a heat dissipation device at the lower end of the motor body. The heat dissipation device is detachably installed on the motor body, which is convenient for workers to disassemble and maintain. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0012] In the diagram, 1. Motor body; 2. Motor front cover; 3. Motor rear cover; 4. Support base; 5. Fixing part; 6. Heat dissipation device; 7. Outer shell; 8. Mounting plate; 9. Cooling fan; 10. Positioning component; 11. Positioning piece; 12. Return spring; 13. Heat sink. Detailed Implementation

[0013] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0014] like Figure 1 , Figure 2 As shown, this explosion-proof motor includes a motor body 1. A front end cover 2 and a rear end cover 3 are respectively provided at the front and rear ends of the motor body 1. A support base 4 is provided at the lower end of the motor body 1. A fixing part 5 is integrally provided at the lower end of the motor body 1, and a slot communicating with the interior of the motor body 1 is opened in the fixing part 5. A heat dissipation device 6 for heat dissipation is detachably provided in the fixing part 5. The heat dissipation device 6 includes a housing 7, a mounting plate 8, and two cooling fans 9. The housing 7 is disposed on the mounting plate 8, and the cooling fans 9 are disposed inside the housing 7. Several heat dissipation holes are opened at the upper end of the housing 7. A positioning component 10 for positioning the heat dissipation device 6 is provided on the fixing part 5. The positioning component 10 consists of a positioning element 11 and a return spring 12. A positioning hole matching the positioning element 11 in the positioning component 10 is opened on the housing 7. The positioning element 11 connects with the positioning hole through the action of the return spring 12, thereby fixing the heat dissipation device 6 to the fixing part 5.

[0015] To elaborate further, the heat dissipation device 6 is located at the lower end of the motor body 1. When the motor is running, heat is generated inside. The cooling fan blades in the heat dissipation device 6 rotate to dissipate heat from the inside and reduce the internal temperature.

[0016] To elaborate further, when it is necessary to disassemble the heat dissipation device 6, by pulling the connecting part, the positioning part 11 is retracted into the mounting groove, and the positioning part 11 is released from the positioning hole on the inner and outer shells 7 of the heat dissipation device 6, so that the heat dissipation device 6 can be removed from the motor body 1. This makes it convenient for staff to repair and replace the heat dissipation device 6, as well as repair and replace the internal parts inside the motor.

[0017] To elaborate further, the fixing part 5 is provided with an installation groove for the positioning component 10 to be installed, the reset spring 12 is disposed in the installation groove, and one end of the positioning member 11 extends out of the fixing part 5 and is provided with a connecting part.

[0018] To elaborate further, the size of the outer shell 7 is the same as the slot opened in the fixing part 5, and one end of the outer shell 7 extends into the slot of the fixing part 5.

[0019] To elaborate further, several heat sinks 13 are provided on the outer side of the motor body 1.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document frequently uses terms such as motor body 1, motor front cover 2, motor rear cover 3, support base 4, fixing part 5, heat dissipation device 6, outer shell 7, mounting plate 8, cooling fan 9, positioning assembly 10, positioning element 11, return spring 12, and heat sink 13, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An explosion-proof motor, comprising a motor body (1), wherein a front end cover (2) and a rear end cover (3) are respectively provided at the front and rear ends of the motor body (1), and a support base (4) is provided at the lower end of the motor body (1), characterized in that, The lower end of the motor body (1) is integrally provided with a fixing part (5), and the fixing part (5) has a slot that communicates with the inside of the motor body (1). The fixing part (5) is detachably provided with a heat dissipation device (6) for heat dissipation. The heat dissipation device (6) includes an outer shell (7), a mounting plate (8) and two cooling fans (9). The outer shell (7) is set on the mounting plate (8), and the cooling fans (9) are set inside the outer shell (7). The upper end of the outer shell (7) is provided with several heat dissipation holes for heat dissipation. The fixing part (5) is provided with a positioning component (10) for positioning the heat dissipation device (6). The positioning component (10) is composed of a positioning element (11) and a return spring (12). The outer shell (7) is provided with a positioning hole that matches the positioning element (11) in the positioning component (10). The positioning element (11) is connected to the positioning hole by the action of the return spring (12) to fix the heat dissipation device (6) on the fixing part (5).

2. An explosion-proof electric machine according to claim 1, characterized in that The fixing part (5) is provided with an installation groove for the positioning component (10) to be installed. The reset spring (12) is set in the installation groove. One end of the positioning component (11) extends out of the fixing part (5) and is provided with a connecting part.

3. An explosion-proof electric machine according to claim 1, characterized in that The size of the outer shell (7) is the same as the slot opened in the fixing part (5), and one end of the outer shell (7) extends into the slot of the fixing part (5).

4. An explosion-proof electric machine according to claim 1, characterized in that, The outer side of the motor body (1) is provided with several heat sinks (13).