Air-cooling heat dissipation structure of explosion-proof motor shell

Abstract

The utility model discloses an air-cooled heat dissipation structure of an explosion-proof motor shell, and relates to the technical field of explosion-proof motors. The heat dissipation device comprises a heat dissipation protection shell, a heat dissipation fan and a dustproof assembly, a plurality of heat dissipation fins are welded to the peripheral face of the heat dissipation protection shell in a penetrating mode, a ventilation opening is formed in one end of each heat dissipation fin in a penetrating mode, the heat dissipation fan is clamped and fixed in the heat dissipation protection shell, and a driving rod is inserted into one end of the heat dissipation fan in a penetrating mode; a dustproof assembly is screwed and fixed to one end of the heat dissipation protection shell, a second dustproof net is clamped and fixed in the dustproof assembly, and a rotating pipe penetrates through the center of one side of the second dustproof net in a clamped mode. According to the utility model, through the arrangement of the heat dissipation protection shell, the heat dissipation fan and the dustproof assembly, the problems that the area of a filter screen of an air cooling heat dissipation structure is limited, so that air is difficult to flow quickly, the contact area of airflow and heat dissipation fins is limited, and the heat dissipation fan needs to run for a long time to reduce the temperature of the motor shell to a proper temperature are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of explosion-proof motors, and particularly relates to an air-cooling heat dissipation structure of an explosion-proof motor housing. Background Art

[0002] An explosion-proof motor is a motor that can be used in flammable and explosive places. It does not generate electric sparks during operation. Its casing has a high degree of sealing to reduce or prevent dust from entering the casing. Even if dust enters, it will not cause ignition hazard. The surface temperature of the casing does not exceed the specified temperature. The working principle of an explosion-proof motor is to play an explosion-proof role as a running motor in places with explosion hazards. It is mainly used in coal mines, oil and gas, petrochemicals and chemical industries. It is also widely used in textiles, metallurgy, urban gas, transportation, grain and oil processing, papermaking, medicine and other departments. In order to avoid excessive temperature during the operation of the explosion-proof motor, it is usually necessary to equip the corresponding heat dissipation structure in the production process of the explosion-proof motor. When the explosion-proof motor is working, its casing is cooled to ensure the normal operation of the explosion-proof motor. However, it still has the following disadvantages in actual use:

[0003] The utility model with publication number CN221058111U discloses a heat dissipation structure for a motor housing, wherein the outer wall of the motor housing is provided with heat dissipation fins around, a fixing seat is provided at one end of the motor housing, a heat dissipation through hole is provided inside the fixing seat, mounting grooves are provided inside two opposite outer walls of the motor housing, a filter is installed inside the mounting groove, a heat dissipation back seat is installed on one side of the motor housing, a mounting seat is provided inside the heat dissipation back seat, a heat dissipation device is installed on one side of the mounting seat, a heat dissipation fan is installed inside the heat dissipation device, a fixing groove is provided inside one end of the heat dissipation back seat, a protective screen is installed inside the fixing groove, and a filter is usually provided in the air-cooled heat dissipation structure of the motor housing to prevent dust from entering the inner side of the motor housing and to prevent dust from polluting the inner housing of the motor. However, in actual use, due to the limited surface area of ​​the motor housing, the area of ​​the filter is limited, and air is difficult to flow quickly, which limits the heat dissipation efficiency and the filter is prone to clogging, resulting in a decrease in air flow rate, and even may cause damage to the filter;

[0004] The heat dissipation structure increases the heat dissipation area of ​​the motor housing through the heat dissipation fins to improve the heat dissipation efficiency of the motor housing. However, in actual use, the contact area between the airflow and the heat dissipation fins is often limited, resulting in a slow cooling rate of the housing. The heat dissipation fan needs to work for a long time to reduce the motor housing to an appropriate temperature, and the heat dissipation efficiency is low. Utility Model Content

[0005] The utility model aims to provide an air-cooled heat dissipation structure for an explosion-proof motor housing, which solves the problem that when the air-cooled heat dissipation structure cools down the explosion-proof motor, the area of ​​the filter is limited, which makes it difficult for air to flow quickly, and the blocked filter is easily damaged, the contact area between the airflow and the heat dissipation fins is limited, and the heat dissipation fan needs to run for a long time to reduce the motor housing to an appropriate temperature through a heat dissipation protection housing, a heat dissipation fan and a dustproof component.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an air-cooled heat dissipation structure of an explosion-proof motor housing, comprising a heat dissipation protection housing, a heat dissipation fan and a dust-proof component. A plurality of heat dissipation fins are welded through the outer peripheral surface of the heat dissipation protection housing, and a vent is penetrated at one end of each of the heat dissipation fins, and the vent is penetrated and connected with the heat dissipation protection housing. A heat dissipation fan is clamped and fixed in the heat dissipation protection housing, a driving rod is penetrated and inserted at one end of the heat dissipation fan, a dust-proof component is screwed and fixed at one end of the heat dissipation protection housing, a second dust-proof net is clamped and fixed in the dust-proof component, and a rotating tube is clamped and connected at the center of one side of the second dust-proof net;

[0008] The heat dissipation fins further increase the heat dissipation area through the ventilation holes, and ensure the contact efficiency between the airflow and the heat dissipation fins, while increasing the contact area between the heat dissipation structure and the external environment, so that the air can quickly pass through the heat dissipation structure to cool down, ensuring the heat dissipation efficiency. The heat dissipation fan can drive the flow of air to cool down the heat dissipation protection shell, and the driving rod can drive the rotating tube to rotate, further driving the scraper to clean the surface of the second dustproof net to avoid dust clogging the surface of the second dustproof net, thereby ensuring the service life of the heat dissipation structure. The dustproof component can filter dust and some flammable and harmful gases in the air to avoid damage to the components of the explosion-proof motor and ensure the service life of the explosion-proof motor.

[0009] Furthermore, a first thread groove is provided at one end of the outer circumference of the heat dissipation protection shell, a mounting bracket is welded and fixed at the other end of the outer circumference of the heat dissipation protection shell, a sealing plate is clamped and fixed to the mounting bracket relative to the other side of the heat dissipation protection shell, and a plurality of mounting holes are provided through one side of the sealing plate and the mounting bracket;

[0010] The heat dissipation structure and the components of the explosion-proof motor and the remaining structure can be connected through the mounting holes of the mounting frame, so that some components of the explosion-proof motor are placed inside the heat dissipation protection shell, which is convenient for cooling some components.

[0011] Furthermore, a first dustproof net is clamped at one end of each of the heat dissipation fins, the first dustproof net is located at the other end of the heat dissipation fin relative to the heat dissipation protection shell, and the plurality of heat dissipation fins are located between the mounting frame and the heat dissipation fan;

[0012] The heat dissipation fins further increase the heat dissipation area through the ventilation holes, and ensure the contact efficiency between the airflow and the heat dissipation fins, while increasing the contact area between the heat dissipation structure and the external environment. After entering the inner side of the heat dissipation protection shell, the air is discharged through the ventilation holes of multiple heat dissipation fins to cool down the heat dissipation protection shell and motor components. The first dustproof net can prevent dust from entering the heat dissipation protection shell through the ventilation holes when the heat dissipation fan stops running.

[0013] Furthermore, a driving assembly is clamped and fixed inside the heat dissipation fan, a rotating rod is clamped at one end of the driving assembly, a fan blade is clamped and fixed on the outer peripheral surface of the rotating rod, the driving rod is clamped at the other end of the rotating rod relative to the driving assembly, and the driving rod is located at the other end of the heat dissipation fan relative to the heat dissipation fins;

[0014] The rotation of the driving assembly's rotating rod further drives the fan blades to rotate, drives the air flow, cools the heat dissipation protection shell, and improves the automation level of the heat dissipation structure.

[0015] Furthermore, a second thread groove is provided at one end of the inner side of the dustproof component, a filter element is fixedly connected in the dustproof component, the rotating tube is inserted through one side of the filter element, a scraper is welded and fixed at one end of the outer circumference of the rotating tube, a driving groove is provided at the other end of the rotating tube, the second thread groove is screwed and fixed to the outer circumference of the first thread groove, the driving rod is inserted at one end of the driving groove, the scraper is attached to one side of the second dustproof net, and the filter element is located between the heat dissipation protection shell and the second dustproof net;

[0016] When the airflow passes through the dustproof component and enters the heat dissipation protection shell, the dust can be filtered through the second dustproof net, and the flammable and harmful gases can be filtered through the filter element, thereby avoiding damage to the components of the explosion-proof motor and ensuring the service life of the explosion-proof motor. The driving rod can drive the rotating tube to rotate, and further drive the scraper to rotate, so as to scrape off the dust blocked on the surface of the second dustproof net, thereby avoiding clogging of the surface of the second dustproof net by dust, ensuring the service life of the heat dissipation structure and the ventilation efficiency of the heat dissipation structure.

[0017] The utility model has the following beneficial effects:

[0018] The utility model solves the problem that the air-cooled heat dissipation structure of the motor housing is usually provided with a filter to prevent dust from entering the inner side of the motor housing and to prevent dust from polluting the inner housing of the motor. However, in actual use, due to the limited surface area of ​​the motor housing, the area of ​​the filter is limited, and air is difficult to flow quickly, which limits the heat dissipation efficiency and the filter is prone to clogging, resulting in a decrease in the air flow rate and even damage to the filter. When the heat dissipation fan drives the air to flow, the airflow enters the heat dissipation protection housing through the dustproof component, and the dust can be filtered through the second dustproof net, and the flammable and harmful gases can be filtered through the filter element to avoid damage to the components of the explosion-proof motor. The driving rod can drive the rotating tube to rotate, and further drive the scraper to rotate, so as to scrape off the dust blocked on the surface of the second dustproof net, and to prevent the dust from clogging the surface of the second dustproof net, thereby ensuring the service life of the heat dissipation structure and the ventilation efficiency of the heat dissipation structure.

[0019] The utility model solves the problem that the heat dissipation structure increases the heat dissipation area of ​​the motor housing through the heat dissipation fins to improve the heat dissipation efficiency of the motor housing by arranging a heat dissipation protection housing and a heat dissipation fan. However, in actual use, the contact area between the airflow and the heat dissipation fins is often limited, resulting in a slow cooling speed of the housing, and the heat dissipation fan needs to work for a long time to reduce the motor housing to a suitable temperature, resulting in low heat dissipation efficiency. The heat dissipation fins further increase the heat dissipation area through the vents, and ensure the contact efficiency between the airflow and the heat dissipation fins, while increasing the contact area between the heat dissipation structure and the external environment, so that the air can quickly pass through the heat dissipation structure for cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is a structural effect diagram of the utility model;

[0022] Figure 3 This is a structural diagram of the heat dissipation protection housing of the utility model;

[0023] Figure 4 This is a structural diagram of the heat dissipation fan of the utility model;

[0024] Figure 5 This is a structural diagram of the dustproof component of the utility model;

[0025] Figure 6 It is a side view of the dustproof component of the utility model.

[0026] Reference numerals:

[0027] 1. Heat dissipation protection shell; 101. Heat dissipation fins; 102. First dustproof net; 103. Mounting frame; 104. Sealing plate; 105. Mounting hole; 106. Ventilation port; 107. First threaded groove; 2. Heat dissipation fan; 201. Drive assembly; 202. Rotating rod; 203. Fan blade; 204. Drive rod; 3. Dustproof assembly; 301. Second dustproof net; 302. Rotating tube; 303. Scraper; 304. Second threaded groove; 305. Filter element; 306. Drive groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-6 As shown, the utility model is an air-cooled heat dissipation structure of an explosion-proof motor housing, comprising a heat dissipation protection housing 1, a heat dissipation fan 2 and a dustproof component 3. A plurality of heat dissipation fins 101 are welded through the outer peripheral surface of the heat dissipation protection housing 1, and a vent 106 is opened through one end of each heat dissipation fin 101. The vent 106 is connected through the heat dissipation protection housing 1. The heat dissipation fan 2 is fixedly connected in the heat dissipation protection housing 1, and a driving rod 204 is inserted through one end of the heat dissipation fan 2. The dustproof component 3 is screwed and fixed at one end of the heat dissipation protection housing 1. A second dustproof net 301 is fixedly connected in the dustproof component 3, and a rotating tube 302 is fixedly connected through the center of one side of the second dustproof net 301.

[0030] After the heat dissipation structure and the explosion-proof motor structure are installed, when the explosion-proof motor is running, the heat dissipation fan 2 starts and drives the air to flow, so that the air is filtered through the dustproof component 3 and then enters the heat dissipation protection shell 1. At the same time, the rotation of the scraper 303 cleans the surface of the second dustproof net 301 to prevent dust from clogging the surface of the second dustproof net 301. The air enters the heat dissipation protection shell 1 to cool down the explosion-proof motor components, and the hot air is blown out through multiple vents 106 to cool down the heat dissipation protection shell 1, so that the heat dissipation protection shell 1 and the explosion-proof motor body are at a suitable temperature.

[0031] Among them Figure 1-4 As shown, a first thread groove 107 is provided at one end of the outer circumference of the heat dissipation protection shell 1, a mounting frame 103 is welded and fixed at the other end of the outer circumference of the heat dissipation protection shell 1, a sealing plate 104 is clamped and fixed to the mounting frame 103 relative to the other side of the heat dissipation protection shell 1, and a plurality of mounting holes 105 are penetrated and provided on one side of the sealing plate 104 and the mounting frame 103, a first dustproof net 102 is clamped at one end of each heat dissipation fin 101, the first dustproof net 102 is located at the other end of the heat dissipation fin 101 relative to the heat dissipation protection shell 1, and a plurality of heat dissipation fins 101 are located between the mounting frame 103 and the heat dissipation fan 2;

[0032] A driving assembly 201 is clamped and fixed inside the heat dissipation fan 2, a rotating rod 202 is clamped at one end of the driving assembly 201, a fan blade 203 is clamped and fixed on the outer peripheral surface of the rotating rod 202, a driving rod 204 is clamped at the other end of the rotating rod 202 relative to the driving assembly 201, and the driving rod 204 is located at the other end of the heat dissipation fan 2 relative to the heat dissipation fin 101;

[0033] The heat dissipation structure is connected to the components of the explosion-proof motor and the remaining structure through the mounting hole 105 of the mounting frame 103, so that some components of the explosion-proof motor are placed on the inner side of the heat dissipation protection shell 1. When the explosion-proof motor is working, the driving component 201 drives the rotation of the rotating rod 202 and the fan blades 203, further driving the flow of air, so that the cold air enters the heat dissipation protection shell 1 through the dustproof component 3 and cools the components, and then is discharged through the vent 106 and the first dustproof net 102 to cool the heat dissipation protection shell 1 and the motor components.

[0034] Among them Figure 1 , 2 As shown in FIGS. 5 and 6, a second thread groove 304 is provided at one end of the inner side of the dustproof component 3, a filter element 305 is fixedly connected in the dustproof component 3, a rotating tube 302 is inserted through one side of the filter element 305, a scraper 303 is welded and fixed at one end of the outer circumference of the rotating tube 302, a driving groove 306 is provided at the other end of the rotating tube 302, the second thread groove 304 is screwed and fixed to the outer circumference of the first thread groove 107, the driving rod 204 is inserted at one end of the driving groove 306, the scraper 303 is attached to one side of the second dustproof net 301, and the filter element 305 is located between the heat dissipation protection shell 1 and the second dustproof net 301;

[0035] When the airflow passes through the dustproof component 3 and enters the heat dissipation protection shell 1, the dust is filtered by the second dustproof net 301, and the flammable and harmful gases can be filtered by the filter element 305 to avoid damage to the components of the explosion-proof motor, and the driving rod 204 drives the rotating tube 302 to rotate, and further drives the scraper 303 to rotate, so as to scrape off the dust blocked on the surface of the second dustproof net 301, so as to avoid the dust blocking the surface of the second dustproof net 301.

[0036] The specific working principle of the utility model is as follows: the heat dissipation structure and the components of the explosion-proof motor and the remaining structure are connected through the mounting hole 105 of the mounting frame 103, so that some components of the explosion-proof motor are placed inside the heat dissipation protection shell 1. When the explosion-proof motor is working, the driving component 201 drives the rotation of the rotating rod 202 and the fan blade 203, so that when the outside air enters the heat dissipation protection shell 1 through the dustproof component 3, the dust is filtered through the second dustproof net 301, and the flammable and harmful gases can be filtered through the filter element 305 to avoid the explosion-proof motor. The drive rod 204 drives the rotating tube 302 to rotate, and further drives the scraper 303 to rotate, so as to scrape off the dust blocked on the surface of the second dustproof net 301, and prevent the dust from blocking the surface of the second dustproof net 301. The cold air cools down the components and is then discharged through the vents 106 and the first dustproof net 102 to cool down the heat dissipation protection shell 1 and the motor components, so that the heat dissipation protection shell 1 and the explosion-proof motor body are at a suitable temperature. After using it for a period of time, unscrew and remove the dustproof component 3 and replace it.

[0037] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. An air-cooled heat dissipation structure for an explosion-proof motor housing, comprising a heat dissipation protection housing (1), a heat dissipation fan (2) and a dustproof component (3), characterized in that: The outer peripheral surface of the heat dissipation protection shell (1) is penetrated and welded with a plurality of heat dissipation fins (101); a ventilation hole (106) is penetrated and opened at one end of each heat dissipation fin (101); the ventilation hole (106) is penetrated and connected with the inside of the heat dissipation protection shell (1); a heat dissipation fan (2) is clamped and fixed in the heat dissipation protection shell (1); a driving rod (204) is inserted through one end of the heat dissipation fan (2); a dustproof component (3) is screwed and fixed at one end of the heat dissipation protection shell (1); a second dustproof net (301) is clamped and fixed in the dustproof component (3); and a rotating tube (302) is clamped and connected through the center of one side of the second dustproof net (301).

2. The air-cooling heat dissipation structure of an explosion-proof motor housing according to claim 1, characterized in that: A first thread groove (107) is provided at one end of the outer circumference of the heat dissipation protection shell (1), a mounting frame (103) is welded and fixed to the other end of the outer circumference of the heat dissipation protection shell (1), a sealing plate (104) is clamped and fixed to the mounting frame (103) relative to the other side of the heat dissipation protection shell (1), and a plurality of mounting holes (105) are provided through one side of the sealing plate (104) and the mounting frame (103).

3. The air-cooling heat dissipation structure of an explosion-proof motor housing according to claim 1, characterized in that: A first dustproof net (102) is clamped on one end of each heat dissipation fin (101), the first dustproof net (102) is located at the other end of the heat dissipation fin (101) relative to the heat dissipation protection housing (1), and the plurality of heat dissipation fins (101) are located between the mounting frame (103) and the heat dissipation fan (2).

4. The air-cooling heat dissipation structure of an explosion-proof motor housing according to claim 1, characterized in that: A drive assembly (201) is clamped and fixed inside the heat dissipation fan (2), a rotating rod (202) is clamped on one end of the drive assembly (201), a fan blade (203) is clamped and fixed on the outer peripheral surface of the rotating rod (202), the drive rod (204) is clamped on the other end of the rotating rod (202) relative to the drive assembly (201), and the drive rod (204) is located at the other end of the heat dissipation fan (2) relative to the heat dissipation fin (101).

5. The air-cooling heat dissipation structure of an explosion-proof motor housing according to claim 2, characterized in that: A second thread groove (304) is provided at one end of the inner side of the dustproof component (3), a filter element (305) is clamped and fixed inside the dustproof component (3), the rotating tube (302) is inserted through one side of the filter element (305), a scraper (303) is welded and fixed at one end of the outer peripheral surface of the rotating tube (302), a driving groove (306) is provided at the other end of the rotating tube (302), the second thread groove (304) is screwed and fixed to the outer peripheral surface of the first thread groove (107), the driving rod (204) is inserted at one end of the driving groove (306), the scraper (303) is attached to one side of the second dustproof net (301), and the filter element (305) is located between the heat dissipation protection housing (1) and the second dustproof net (301).

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