Industrial cooling fan suitable for frequency converter

Abstract

This utility model relates to the field of industrial cooling fan technology, and more particularly to an industrial cooling fan suitable for frequency converters. This utility model provides such an industrial cooling fan for frequency converters, including a support frame, rotating blades, an isolation plate, screws, a fixed frame, and a motor. The rotating blades are rotatably mounted inside the support frame. An isolation plate is installed on the front side of the support frame by multiple screws. A fixed frame is fixedly connected to the rear side of the support frame, and the motor is mounted on the fixed frame. A receiver transmits signals to a controller, which analyzes the signals and outputs corresponding control commands to drive the motor, causing it to run at the required specific speed. The motor's operation drives the rotating blades to rotate at high speed within the support frame. The rotation of the rotating blades generates directional airflow, which is forced onto the frequency converter body, achieving efficient forced air cooling and effectively reducing the frequency converter's operating temperature, improving its operational stability and service life.

Description

Technical Field

[0001] This utility model relates to the field of industrial cooling fan technology, and in particular to an industrial cooling fan suitable for frequency converters. Background Technology

[0002] An industrial cooling fan for a frequency converter is a forced cooling device specifically designed to dissipate heat from the frequency converter. Its main function is to remove the heat generated by the frequency converter during operation by forcing airflow, thus preventing equipment performance degradation, component aging, or shutdown due to excessive temperature.

[0003] Patent CN216131119U discloses a convenient-to-clean cooling fan for frequency converters, including a cooling fan body. The top of the cooling fan body has two dust filters connected by a connecting plate. A first fixing plate is fixedly connected to one side of each dust filter. Side plates are provided on both sides of the cooling fan body. One side of the first fixing plate is fixedly connected to one side of each side plate. A first rectangular hole is formed on one side of each side plate, and a first limiting block is provided within the first rectangular hole. A second fixing plate is provided on the side of the side plate away from the cooling fan body, and one side of the first limiting block is fixedly connected to one side of the second fixing plate. While the above patent protects the cooling fan body with dust filters, reducing the possibility of dust entering the cooling fan body and facilitating the disassembly and cleaning of the dust filters, the speed of the cooling fan body is usually fixed or manually adjustable. It cannot automatically adjust the airflow in real time in response to changes in the frequency converter's operating conditions (such as temperature and load). Therefore, it is difficult to achieve optimal heat dissipation while ensuring energy saving, and it cannot effectively guarantee the working stability and service life of the frequency converter.

[0004] Therefore, an industrial cooling fan suitable for frequency converters is needed. Utility Model Content

[0005] In order to overcome the shortcomings of existing patented cooling fans, whose main body speed is usually fixed or manually adjustable, and cannot respond to changes in the inverter's operating conditions (such as temperature and load) in real time to automatically adjust the air volume, thus making it difficult to achieve optimal heat dissipation while ensuring energy saving, and failing to effectively guarantee the working stability and service life of the inverter, this utility model provides an industrial cooling fan suitable for inverters.

[0006] The technical solution of this utility model is: an industrial cooling fan suitable for frequency converters, including a support frame, a rotating plate, an isolation plate, screws, a fixed frame, a motor, a receiver, and a controller. The rotating plate is rotatably arranged inside the support frame. The isolation plate is installed on the front side of the support frame by multiple screws. The fixed frame is fixedly connected to the rear side of the support frame. The motor is installed on the fixed frame. The output shaft of the motor passes through the support frame and is connected to the rotating plate. The receiver is installed on the top of the fixed frame. The controller is installed on the rear side of the fixed frame. The controller and the receiver are electrically connected.

[0007] Furthermore, it also includes a card plate, a circulation tube, and a handle. Two card plates are slidably installed on the rear side of the support frame, and the two card plates are connected together to the circulation tube. A handle is fixedly connected to the rear side of the card plates.

[0008] Furthermore, it also includes a fixing rod, a stabilizing frame, a dustproof net, filter cotton, and a pull rod. Two fixing rods are fixedly connected to the upper and lower sides of the fixing frame, and the stabilizing frame is slidably mounted on the two fixing rods. A dustproof net is embedded in the stabilizing frame, and filter cotton is installed on both the upper and lower sides of the stabilizing frame. A pull rod is fixedly connected to the rear side of the stabilizing frame.

[0009] Furthermore, it also includes bellows, with bellows connected to both ends of the circulation pipe.

[0010] Furthermore, it also includes a ball-locking mechanism, with two balls mounted on the locking plate that engage with slots on the support frame.

[0011] Furthermore, it also includes anti-slip sleeves, with anti-slip sleeves fitted onto the pull rod.

[0012] Compared with the prior art, this utility model provides an industrial cooling fan suitable for frequency converters, which has the following beneficial effects: 1. The signal is transmitted to the controller through the receiver. The controller analyzes the signal and outputs corresponding control commands to drive the motor, so that the motor runs at the required specific speed. When the motor runs, it drives the rotating blade to rotate at high speed in the support frame. The rotation of the rotating blade generates directional airflow and forces it to blow onto the frequency converter body, thereby achieving efficient forced air cooling and effectively reducing the operating temperature of the frequency converter, improving its operating stability and service life.

[0013] 2. Before being discharged, the airflow generated by the fan passes through the heat exchange area outside the circulation pipe and exchanges heat with the low-temperature cooling medium flowing inside the pipe, thereby being effectively cooled. The cooled airflow is then transported to the target area to improve local heat dissipation capacity.

[0014] 3. Air entering from the rear of the stabilizer frame passes through a dust filter, which intercepts larger dust and lint particles. Air entering from the top and bottom sides of the stabilizer frame is filtered by filter cotton to absorb dust particles, ensuring that the air entering the equipment is clean and preventing dust from accumulating on the motor and radiator, which would affect heat dissipation efficiency and equipment lifespan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the support frame, isolation plate, screws, and other components of this utility model.

[0017] Figure 3 This is a partial sectional view of the fixing frame, motor, and receiver components of this utility model.

[0018] Figure 4 This is a partial sectional view of the card plate, circulation tube, and handle of this utility model.

[0019] Figure 5 This is an exploded view of the components of this utility model, including the fixing rod, the stabilizing frame, and the filter cotton.

[0020] In the attached diagram, the following are the reference numerals: 1. Support frame, 2. Rotating plate, 3. Isolation plate, 4. Screw, 5. Fixing frame, 6. Motor, 7. Receiver, 8. Controller, 9. Card plate, 10. Circulation tube, 11. Handle, 12. Corrugated pipe, 13. Ball clamp, 14. Fixing rod, 15. Stabilizing frame, 16. Dustproof net, 17. Filter cotton, 18. Pull rod, 19. Anti-slip sleeve. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0022] Example 1: An industrial cooling fan suitable for frequency converters, please refer to... Figures 1-5 The device includes a support frame 1, a rotating plate 2, an isolation plate 3, screws 4, a fixed frame 5, a motor 6, a receiver 7, and a controller 8. The rotating plate 2 is rotatably mounted inside the support frame 1. The isolation plate 3 is installed on the front side of the support frame 1 by four screws 4. The fixed frame 5 is fixedly connected to the rear side of the support frame 1. The motor 6 is mounted on the fixed frame 5. The output shaft of the motor 6 passes through the support frame 1 and is connected to the rotating plate 2. The receiver 7 is mounted on the top of the fixed frame 5. The controller 8 is mounted on the rear side of the fixed frame 5. The controller 8 is electrically connected to the receiver 7. The NRF24L01 module can be used as the wireless receiver, and the STM32 series microcontroller can be used as the controller.

[0023] When the cooling fan needs to be started, the inverter will issue a corresponding control signal based on its real-time operating conditions (such as temperature and load) and transmit the command to the receiver 7 via wireless or wired means. The receiver 7 will then transmit the signal to the controller 8. The controller 8 will analyze the signal and output the corresponding control command to drive the motor 6, making the motor 6 run at the required specific speed. After receiving the control signal, the motor 6 will start running. Its output shaft passes through the support frame 1 and is connected to the rotating plate 2, thereby driving the rotating plate 2 to rotate at high speed within the support frame 1. The rotation of the rotating plate 2 generates directional airflow, which is forced onto the inverter body to achieve efficient forced air cooling, effectively reducing the inverter's operating temperature and improving its operational stability and service life. In addition, the airflow will pass through the isolation plate 3 before entering the support frame 1 to prevent personnel from contacting the rotating parts and ensure operational safety.

[0024] Example 2: Based on Example 1, please refer to... Figure 1 and Figure 4 It also includes a clamping plate 9, a circulation pipe 10, and a handle 11. Two clamping plates 9 are slidably arranged on the rear side of the support frame 1. The two clamping plates 9 are together equipped with the circulation pipe 10. The handle 11 is fixedly connected to the rear side of the clamping plate 9. Corrugated pipes 12 are connected to both ends of the circulation pipe 10. The corrugated pipes 12 have good flexibility and adaptability, which facilitates the connection of pipe interfaces in different directions. Two locking balls 13 are provided on the clamping plate 9. The locking balls are inserted into the locking grooves on the support frame 1 and can lock the clamping plate 9 after it slides into place to prevent it from loosening or falling off due to vibration during operation, thus ensuring the stability of the connection.

[0025] When enhanced heat dissipation is required, hold handle 11 and slide the two clamping plates 9 into place along the rear side of support frame 1, so that circulation pipe 10 is located in the fan exhaust path. Then, connect the external cooling medium (such as cooling water) pipe to the corrugated pipe 12 interface at both ends of circulation pipe 10 to form a closed cooling loop. After startup, the airflow generated by the fan will pass through the heat exchange area outside circulation pipe 10 before being discharged, and exchange heat with the low-temperature cooling medium flowing inside the pipe, thereby being effectively cooled. The cooled airflow is transported to the target area to improve local heat dissipation capacity. This design realizes the synergistic heat dissipation of air cooling and liquid cooling, which can greatly improve heat dissipation efficiency under high temperature or high load conditions. At the same time, the modular structure enables rapid installation and maintenance, enhancing the adaptability and reliability of the system.

[0026] Please see Figure 1 and Figure 5It also includes a fixed rod 14, a stabilizing frame 15, a dustproof net 16, filter cotton 17, and a pull rod 18. The fixed frame 15 is fixedly connected to two fixed rods 14 on both the upper and lower sides. The two fixed rods 14 are slidably mounted on the stabilizing frame 15. The dustproof net 16 is embedded in the stabilizing frame 15. Filter cotton 17 is mounted on both the upper and lower sides of the stabilizing frame 15. The pull rod 18 is fixedly connected to the rear side of the stabilizing frame 15. The pull rod 18 is fitted with an anti-slip sleeve 19 to increase friction and facilitate operation. When it is necessary to clean or replace the filter material, the entire stabilizing frame 15 can be slid out along the fixed rod 14 by pulling the pull rod outward for easy maintenance.

[0027] When the fan is working, the air entering from the rear of the stabilizer frame 15 passes through the dust filter 16, which intercepts larger dust and lint particles. The air entering from the top and bottom sides of the stabilizer frame 15 is filtered by the filter cotton 17 to absorb dust particles, ensuring that the air entering the equipment is clean and preventing dust from accumulating on the motor 6 and the radiator, which would affect the heat dissipation efficiency and the life of the equipment.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An industrial cooling fan suitable for frequency converters, characterized in that: The device includes a support frame (1), a rotating plate (2), an isolation plate (3), screws (4), a fixed frame (5), a motor (6), a receiver (7), and a controller (8). The rotating plate (2) is rotatably installed inside the support frame (1). The isolation plate (3) is installed on the front side of the support frame (1) by multiple screws (4). The fixed frame (5) is fixedly connected to the rear side of the support frame (1). The motor (6) is installed on the fixed frame (5). The output shaft of the motor (6) passes through the support frame (1) and is connected to the rotating plate (2). The receiver (7) is installed on the top of the fixed frame (5). The controller (8) is installed on the rear side of the fixed frame (5). The controller (8) is electrically connected to the receiver (7).

2. An industrial cooling fan suitable for frequency converters according to claim 1, characterized in that: It also includes a card plate (9), a circulation tube (10) and a handle (11). Two card plates (9) are slidably arranged on the rear side of the support frame (1). The two card plates (9) are together provided with a circulation tube (10). The handle (11) is fixedly connected to the rear side of the card plate (9).

3. An industrial cooling fan suitable for frequency converters according to claim 2, characterized in that: It also includes a fixing rod (14), a stabilizing frame (15), a dustproof net (16), a filter cotton (17), and a pull rod (18). The fixing frame (5) is fixedly connected to two fixing rods (14) on both the upper and lower sides. The two fixing rods (14) are slidably connected to the stabilizing frame (15). The dustproof net (16) is embedded in the stabilizing frame (15). The filter cotton (17) is provided on both the upper and lower sides of the stabilizing frame (15). The pull rod (18) is fixedly connected to the rear side of the stabilizing frame (15).

4. An industrial cooling fan suitable for frequency converters according to claim 3, characterized in that: It also includes a bellows (12), and both ends of the circulation pipe (10) are connected to the bellows (12).

5. An industrial cooling fan suitable for frequency converters according to claim 4, characterized in that: It also includes a ball holder (13), and two balls holders (13) are provided on the plate (9), which are inserted into the slots on the support frame (1).

6. An industrial cooling fan suitable for frequency converters according to claim 5, characterized in that: It also includes an anti-slip sleeve (19), which is fitted onto the pull rod (18).

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