A cooling device for an explosion-proof motor

Abstract

The utility model relates to motor heat dissipation technical field, and disclose a kind of explosion-proof motor cooling device, including motor body, the left side surface of motor body is equipped with output shaft, the right side surface of motor body is equipped with reverse shaft extension.The utility model is through starting motor body, the output shaft and reverse shaft extension of motor body when rotating, reverse shaft extension can drive fan to rotate, fan can directly send airflow to motor body, accelerate heat to dissipate to outside, and its compact structure, adapt complex field layout;Air guide cover can effectively guide external air at the same time, and then external air can be guided to the inside of shell through multiple through holes, form directional air duct, forced airflow flows along motor body shell and spiral heat dissipation fin, improve convective heat transfer efficiency;And guard plate can avoid external foreign matter directly contacting motor body shell or spiral heat dissipation fin, prevent scratching surface, while enhancing overall structural strength.

Description

Technical Field

[0001] This utility model relates to the field of motor heat dissipation technology, specifically to an explosion-proof motor cooling device. Background Technology

[0002] Explosion-proof motors are special motors used in flammable and explosive environments. Their core design principle involves structural optimization and material selection to prevent sparks, high temperatures, or electric arcs generated during motor operation from igniting surrounding explosive mixtures, thereby avoiding explosions. During motor operation, components such as windings, core, and bearings generate heat due to current loss, hysteresis loss, and mechanical friction, leading to temperature increases. Prolonged high temperatures not only accelerate insulation aging, causing a decline in insulation performance and affecting motor lifespan, but the high-temperature surfaces can also directly ignite surrounding explosive mixtures, compromising the explosion-proof function. Therefore, this invention proposes a cooling device for explosion-proof motors.

[0003] According to a search, Chinese patent document CN211606321U discloses a motor cooling device. The device uses a motor to drive a hollow column, which in turn rotates the exhaust fan blades on the column to dissipate heat generated by the motor. Simultaneously, a miniature refrigeration compressor pump generates cold air to cool the motor, ensuring it operates in a suitable environment and extending its lifespan. However, in actual use, the enclosure and clamping plates completely enclose the motor, making it difficult to dissipate heat. Furthermore, the fan's airflow is poor, affecting overall heat dissipation efficiency. Additionally, the device uses a compressor pump for forced cooling. Since the compressor pump contains components such as a compressor, evaporator, condenser, and refrigerant piping, problems are easily encountered in the harsh working environment of explosion-proof motors. These problems include vibration causing pipe loosening, refrigerant leakage, and dust clogging the condenser and evaporator. This not only increases the risk of explosion but also increases the pump's energy consumption, raising overall operating and maintenance costs. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an explosion-proof motor cooling device that has the advantages of stable structure, efficient heat conduction, and enhanced heat dissipation, thus solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: an explosion-proof motor cooling device, comprising a motor body, an output shaft mounted on the left side of the motor body, a reverse shaft extension mounted on the right side of the motor body, a spiral heat dissipation fin fixedly mounted on the outer side of the motor body, a housing fixedly mounted on the outer side of the spiral heat dissipation fin, and heat dissipation teeth and a base fixedly mounted on the outer side of the housing.

[0008] Preferably, a fan is fixedly installed at the right end of the reverse shaft extension, and a protective cover is fixedly installed at the right end of the housing.

[0009] With the above technical solution, when the output shaft and the reverse shaft extension of the motor body are rotating, the reverse shaft extension can drive the fan to rotate. The fan can directly blow airflow onto the motor body, accelerating the dissipation of heat to the outside. Moreover, its structure is compact and adaptable to complex site layouts. In addition, the protective cover can effectively prevent foreign objects from entering the fan's rotation area, avoiding sparks or mechanical failures.

[0010] Preferably, a wind deflector and a protective plate are fixedly installed on the left end of the housing, and the protective plate has multiple through holes inside.

[0011] With the above technical solution, when the fan is rotating, the air guide can effectively guide the external air. Then, the external air can be guided into the interior of the housing through multiple through holes to form a directional air duct, which forces the airflow to flow along the motor body shell and the spiral heat dissipation fins, thereby improving the convective heat transfer efficiency. The protective plate can prevent foreign objects from directly contacting the motor body shell or the spiral heat dissipation fins, preventing scratches on the surface, and at the same time enhancing the overall structural strength.

[0012] Preferably, explosion-proof sealing rings are installed on both sides of the motor body, and the output shaft and the reverse shaft extension are dynamically sealed with the explosion-proof sealing rings.

[0013] Through the above technical solution, the explosion-proof sealing ring is the core component of the dynamic sealing of the output shaft and the reverse shaft extension of the explosion-proof motor. The explosion-proof sealing ring can effectively prevent explosive media from entering the motor body or prevent internal sparks and high temperature leakage, while preventing contaminants from entering, protecting the internal components of the device, achieving effective isolation in relative motion, and ensuring stable sealing performance during long-term operation.

[0014] Preferably, the number of spiral heat dissipation fins is set to multiple, and the multiple spiral heat dissipation fins are all distributed in a spiral shape along the axial direction.

[0015] Through the above technical solution, multiple spiral heat dissipation fins are sequentially welded to the outer surface of the motor body. The spiral heat dissipation fins can effectively conduct the heat generated by the motor body. When the fan drives air to flow over its surface, the airflow can effectively carry away the heat. At the same time, the multiple spiral heat dissipation fins can also effectively increase the heat dissipation area of ​​the equipment, thereby improving the overall heat dissipation efficiency.

[0016] Preferably, the number of heat dissipation teeth is provided in multiples, and all of the multiple heat dissipation teeth extend into the interior of the housing.

[0017] Through the above technical solution, multiple spiral heat dissipation fins can conduct some heat to the shell, and then dissipate heat through the natural flow of external air. At the same time, when the air flows inside the shell, the internal heat dissipation teeth can also conduct heat from the internal air, and then dissipate heat effectively through the external heat dissipation teeth, thereby enhancing the overall heat exchange efficiency of the device.

[0018] Compared with the prior art, this utility model provides an explosion-proof motor cooling device, which has the following features:

[0019] Beneficial effects:

[0020] 1. This utility model, by starting the motor body, allows the output shaft and reverse shaft extension of the motor body to rotate. When the reverse shaft extension rotates, it can drive the fan to rotate. The fan can directly blow airflow onto the motor body, accelerating the dissipation of heat to the outside. Its compact structure is suitable for complex site layouts. At the same time, the air guide shroud can effectively guide the external air. Afterward, the external air can be guided into the interior of the housing through multiple through holes, forming a directional airflow channel. This forces the airflow to flow along the outer shell of the motor body and the spiral heat dissipation fins, improving the convective heat transfer efficiency. The protective plate can prevent foreign objects from directly contacting the outer shell of the motor body or the spiral heat dissipation fins, preventing scratches on the surface, and enhancing the overall structural strength.

[0021] 2. This utility model involves sequentially welding multiple spiral heat dissipation fins onto the outer surface of the motor body. The spiral heat dissipation fins can effectively conduct the heat generated by the motor body. When the fan drives air to flow over its surface, the airflow can effectively carry away the heat. At the same time, the multiple spiral heat dissipation fins can also effectively increase the heat dissipation area of ​​the device, thereby improving the overall heat dissipation efficiency. In addition, the multiple spiral heat dissipation fins can conduct some heat to the shell, and then dissipate it through the natural flow of external air. At the same time, when the air flows inside the shell, the internal heat dissipation teeth can also conduct the heat of the internal air, and then dissipate it effectively through the external heat dissipation teeth, thus enhancing the overall heat exchange efficiency of the device. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 2 This is a front cross-sectional view of the structural shell and other parts of this utility model;

[0024] Figure 3 This is a three-dimensional cross-sectional view of the structural shell and other parts of this utility model.

[0025] The components include: 1. Motor body; 2. Output shaft; 3. Reverse shaft extension; 4. Spiral heat dissipation fins; 5. Housing; 6. Heat dissipation teeth; 7. Base; 8. Fan; 9. Protective cover; 10. Air guide cover; 11. Protective plate; 12. Through hole; 13. Explosion-proof sealing ring. Detailed Implementation

[0026] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3 An explosion-proof motor cooling device includes a motor body 1, an output shaft 2 installed on the left side of the motor body 1, a reverse shaft extension 3 installed on the right side of the motor body 1, a spiral heat dissipation fin 4 fixedly installed on the outer side of the motor body 1, a housing 5 fixedly installed on the outer side of the spiral heat dissipation fin 4, and heat dissipation teeth 6 and a base 7 fixedly installed on the outer side of the housing 5.

[0028] Specifically, a fan 8 is fixedly installed on the right end of the reverse shaft extension 3, and a protective cover 9 is fixedly installed on the right end of the housing 5. The advantages are that, with this structure, when the output shaft 2 of the motor body 1 and the reverse shaft extension 3 rotate, the reverse shaft extension 3 can drive the fan 8 to rotate. The fan 8 can directly blow airflow onto the motor body 1, accelerating heat dissipation to the outside. Furthermore, its compact structure adapts to complex site layouts. Additionally, the protective cover 9 can effectively prevent foreign objects from entering the rotation area of ​​the fan 8, avoiding sparks or mechanical failure.

[0029] Specifically, a guide shroud 10 and a protective plate 11 are fixedly installed on the left end of the housing 5. The protective plate 11 has multiple through holes 12 inside. The advantage is that, with this structure, when the fan 8 is rotating, the guide shroud 10 can effectively guide the external air, and then the external air can be guided into the interior of the housing 5 through the multiple through holes 12 to form a directional airflow, which forces the airflow to flow along the outer shell of the motor body 1 and the spiral heat dissipation fins 4, thereby improving the convective heat transfer efficiency. The protective plate 11 can prevent foreign objects from directly contacting the outer shell of the motor body 1 or the spiral heat dissipation fins 4, preventing scratches on the surface, and at the same time enhancing the overall structural strength.

[0030] Specifically, explosion-proof sealing rings 13 are installed on both sides of the motor body 1, and the output shaft 2 and the reverse shaft extension 3 are dynamically sealed with the explosion-proof sealing rings 13. The advantage is that, through this structure, the explosion-proof sealing rings 13 are the core component for the dynamic sealing of the output shaft 2 and the reverse shaft extension 3 of the explosion-proof motor. The explosion-proof sealing rings 13 can effectively prevent explosive media from entering the motor body 1 or prevent internal sparks and high temperatures from leaking out, while also preventing contaminants from entering, protecting the internal components of the device, achieving effective isolation during relative movement, and ensuring stable sealing performance during long-term operation.

[0031] Specifically, multiple spiral heat dissipation fins 4 are provided, and all the spiral heat dissipation fins 4 are distributed in a spiral shape along the axial direction. The advantage is that, through this structure, multiple spiral heat dissipation fins 4 are sequentially welded to the outer surface of the motor body 1. The spiral heat dissipation fins 4 can effectively conduct the heat generated by the motor body 1. When the fan 8 drives air to flow over its surface, the airflow can effectively carry away the heat. At the same time, multiple spiral heat dissipation fins 4 can also effectively increase the heat dissipation area of ​​the equipment, thereby improving the overall heat dissipation efficiency.

[0032] Specifically, multiple heat dissipation fins 6 are provided, and all of them extend into the interior of the housing 5. The advantage is that through this structure, multiple spiral heat dissipation fins 4 can conduct some heat to the housing 5, and then dissipate heat through the natural flow of external air. At the same time, when air flows inside the housing 5, the internal heat dissipation fins 6 can also conduct heat from the internal air, and then dissipate heat effectively through the external heat dissipation fins 6, thereby enhancing the overall heat exchange efficiency of the device.

[0033] In use, by starting the motor body 1, the output shaft 2 and the reverse shaft extension 3 of the motor body 1 rotate. The reverse shaft extension 3 drives the fan 8 to rotate, and the fan 8 can directly blow airflow onto the motor body 1, accelerating the dissipation of heat to the outside. Its compact structure is suitable for complex site layouts. At the same time, the air guide shroud 10 can effectively guide the external air. Then, the external air can be guided into the interior of the housing 5 through multiple through holes 12 to form a directional air duct, forcing the airflow to flow along the outer shell of the motor body 1 and the spiral heat dissipation fins 4, improving the convective heat transfer efficiency. The protective plate 11 can prevent foreign objects from directly contacting the outer shell of the motor body 1 or the spiral heat dissipation fins 4, preventing scratches on the surface, and at the same time enhancing the overall structure. Strength; By sequentially welding multiple spiral heat dissipation fins 4 onto the outer surface of the motor body 1, the spiral heat dissipation fins 4 can effectively conduct the heat generated by the motor body 1; when the fan 8 drives air to flow over its surface, the airflow can effectively carry away the heat, and the multiple spiral heat dissipation fins 4 can also effectively increase the heat dissipation area of ​​the device, thereby improving the overall heat dissipation efficiency; at the same time, the multiple spiral heat dissipation fins 4 can conduct some heat to the housing 5, and then dissipate heat through the natural flow of external air. At the same time, when the air flows inside the housing 5, the internal heat dissipation teeth 6 can also conduct the heat of the internal air, and then dissipate heat effectively through the external heat dissipation teeth 6, thus enhancing the overall heat exchange efficiency of the device.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof motor cooling device, comprising a motor body (1), characterized in that: An output shaft (2) is installed on the left side of the motor body (1), a reverse shaft extension (3) is installed on the right side of the motor body (1), a spiral heat dissipation fin (4) is fixedly installed on the outer side of the motor body (1), a housing (5) is fixedly installed on the outer side of the spiral heat dissipation fin (4), and heat dissipation teeth (6) and a base (7) are fixedly installed on the outer side of the housing (5).

2. The explosion-proof motor cooling device according to claim 1, characterized in that: A fan (8) is fixedly installed at the right end of the reverse shaft extension (3), and a protective cover (9) is fixedly installed at the right end of the housing (5).

3. The explosion-proof motor cooling device according to claim 1, characterized in that: The left end of the housing (5) is fixedly equipped with an air guide cover (10) and a protective plate (11), and the interior of the protective plate (11) has multiple through holes (12).

4. The explosion-proof motor cooling device according to claim 1, characterized in that: Both sides of the motor body (1) are equipped with explosion-proof sealing rings (13), and the output shaft (2) and the reverse shaft extension (3) are dynamically sealed with the explosion-proof sealing rings (13).

5. The explosion-proof motor cooling device according to claim 1, characterized in that: The number of spiral heat dissipation fins (4) is set to multiple, and the multiple spiral heat dissipation fins (4) are all distributed in a spiral shape along the axial direction.

6. The explosion-proof motor cooling device according to claim 1, characterized in that: The number of heat dissipation teeth (6) is provided in multiples, and all of the heat dissipation teeth (6) extend into the interior of the housing (5).

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