Vector frequency converter case heat dissipation structure

Abstract

The utility model provides a vector frequency converter cabinet heat radiation structure, which relates to the technical field of electrical equipment heat radiation and comprises a cabinet body, a mounting frame and a heat radiation frame, and heat radiation holes are arranged on two sides of the cabinet body. The cleaning mechanism is arranged in the heat dissipation frame, the motor drives the threaded rod to rotate, and the connecting block drives the cleaning brush to move up and down, so that the cleaning brush reciprocates on the surface of the dustproof filter screen, dust attached to the surface of the dustproof filter screen is swept down, and the dust is prevented from blocking the filter screen to affect ventilation and heat dissipation; meanwhile, a collecting box arranged on the lower surface of the heat dissipation frame is in sliding connection with a convex groove in the side face of the heat dissipation frame through a convex block and can receive dust swept down by a cleaning brush, and when much dust is accumulated in the collecting box, a limiting rod is pulled to be separated from a limiting hole, the tension of a tension spring is overcome, and the dust is prevented from being accumulated in the collecting box; and therefore, the operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for electrical equipment, and in particular to the heat dissipation structure of a vector frequency converter chassis. Background Technology

[0002] In the field of industrial automation, vector frequency converters are widely used in various equipment due to their precise motor control capabilities. However, when a vector frequency converter is operating, its internal power devices and control circuits generate a significant amount of heat. If this heat cannot be dissipated in time, it will cause the internal temperature of the chassis to rise, affecting the performance and lifespan of the internal components, and may even trigger overheat protection shutdown, reducing equipment operating efficiency and increasing maintenance costs.

[0003] While traditional heat dissipation structures can dissipate heat through cooling fans, they often lack effective dust prevention measures. Dust can easily enter the chassis, affecting heat dissipation and potentially damaging internal electronic components. Furthermore, heat dissipation components such as dust filters lack automatic cleaning functions, requiring regular manual cleaning, which increases maintenance costs and workload. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of low heat dissipation efficiency, poor dust prevention and inconvenient filter cleaning that often exist in the existing technology of vector inverter chassis heat dissipation, and proposes a vector inverter chassis heat dissipation structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vector inverter chassis heat dissipation structure, including a chassis, a mounting frame, and a heat dissipation frame. Heat dissipation holes are provided on both sides of the chassis. A cooling fan is fixedly installed inside the heat dissipation frame. A dust filter is provided inside the heat dissipation frame. A cleaning mechanism is provided inside the heat dissipation frame. A collection box is provided on the lower surface of the heat dissipation frame. A protrusion is fixedly connected to the upper surface of the collection box. A groove is provided on the side of the heat dissipation frame. A fixing plate is fixedly installed on the side of the heat dissipation frame. A limit rod is slidably connected inside the fixing plate. A limit hole is provided on the side of the protrusion. A limit plate is fixedly installed on the surface of the limit rod. A tension spring is sleeved on the surface of the limit rod.

[0006] The cleaning mechanism includes a cleaning brush, with connecting blocks fixedly connected to both sides of the cleaning brush. A threaded rod is rotatably connected inside the heat dissipation frame, a motor is fixedly installed on the side of the heat dissipation frame, and a slide rod is fixedly installed inside the heat dissipation frame.

[0007] Preferably, the brush surface of the cleaning brush is in contact with the surface of the dust filter, and the output end of the motor is fixedly connected to one end of the threaded rod.

[0008] Preferably, the threaded rod is threadedly connected to the connecting block on one side of the cleaning brush, and the slide rod is slidably connected to the connecting block on the other side of the cleaning brush.

[0009] Preferably, the protrusion and the groove are slidably connected, and the limiting rod and the limiting hole are slidably connected.

[0010] Preferably, one end of the tension spring is fixedly connected to the side of the limiting plate, and the other end of the tension spring is fixedly connected to the inner side of the fixing plate.

[0011] Preferably, a positioning block is fixedly installed on the side of the heat sink frame, a positioning hole is opened on the side of the mounting frame, a magnet A is provided on the side of the heat sink frame, a magnet B is provided on the inner side of the mounting frame, and a hexagonal bolt is threadedly connected to the side of the mounting frame.

[0012] Preferably, the positioning block and the positioning hole are slidably connected, the magnet A and the magnet B are attracted to each other, and the hexagonal bolt and the positioning block are threadedly connected.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, a cleaning mechanism is set inside the heat dissipation frame. The motor drives the threaded rod to rotate, causing the connecting block to move the cleaning brush up and down. This allows the cleaning brush to move back and forth on the surface of the dust filter, sweeping away the dust adhering to the surface of the dust filter. This prevents dust from clogging the filter and affecting ventilation and heat dissipation, ensuring the heat dissipation effect of the cooling fan, and reducing the frequency and workload of manual cleaning of the filter. At the same time, the collection box set on the lower surface of the heat dissipation frame is slidably connected to the side groove of the heat dissipation frame through a protrusion. It can receive the dust swept away by the cleaning brush. When the collection box has accumulated a lot of dust, the limit rod is pulled to disengage it from the limit hole, overcoming the tension of the tension spring, so that the collection box can be pulled out for cleaning. The operation is convenient.

[0015] 2. In this utility model, the positioning block on the side of the heat sink frame is slidably connected to the positioning hole on the side of the mounting frame. With the mutual attraction of magnet A and magnet B, the heat sink frame and the mounting frame are initially positioned and fixed. Then, the positioning block and the mounting frame are further tightened by hexagonal bolts, so that the heat sink frame is firmly installed on the housing. This installation method facilitates the quick installation and disassembly of the heat sink frame. When the cooling fan, dust filter or cleaning mechanism malfunctions, the heat sink frame can be easily disassembled for inspection and replacement of parts, improving the maintainability of the equipment and ensuring the normal operation of the heat dissipation structure of the vector inverter chassis. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the heat dissipation structure of the vector frequency converter chassis is provided for this utility model;

[0017] Figure 2 This utility model provides a front sectional view of the heat dissipation structure of the vector frequency converter chassis;

[0018] Figure 3 A side sectional view of the heat dissipation structure of the vector frequency converter chassis is provided for this utility model;

[0019] Figure 4 Exploded view of the collection box and limiting rod of the heat dissipation structure of the vector frequency converter chassis proposed in this utility model;

[0020] Figure 5 This utility model proposes a heat dissipation structure for a vector frequency converter chassis. Figure 4 Enlarged view of A in the middle;

[0021] Figure 6 Exploded views of the heat dissipation frame, magnet A, and magnet B of the vector inverter chassis heat dissipation structure proposed in this utility model.

[0022] Legend: 1. Box body; 2. Mounting frame; 3. Heat dissipation frame; 4. Heat dissipation hole; 5. Cooling fan; 6. Dust filter; 7. Cleaning mechanism; 701. Cleaning brush; 702. Connecting block; 703. Threaded rod; 704. Motor; 705. Slide rod; 8. Collection box; 13. Protrusion; 14. Groove; 15. Fixing plate; 16. Limiting rod; 17. Limiting hole; 18. Limiting plate; 19. Tension spring; 20. Positioning block; 21. Positioning hole; 22. Magnet A; 23. Magnet B; 24. Hex bolt. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1: As Figures 1-6As shown, this utility model provides a technical solution: a heat dissipation structure for a vector frequency converter chassis, including a chassis 1, a mounting frame 2, and a heat dissipation frame 3. Heat dissipation holes 4 are provided on both sides of the chassis 1. A cooling fan 5 is fixedly installed inside the heat dissipation frame 3. A dust filter 6 is provided inside the heat dissipation frame 3. A cleaning mechanism 7 is provided inside the heat dissipation frame 3. A collection box 8 is provided on the lower surface of the heat dissipation frame 3. A protrusion 13 is fixedly connected to the upper surface of the collection box 8. A groove 14 is provided on the side of the heat dissipation frame 3. A fixing plate 15 is fixedly installed on the side of the heat dissipation frame 3. A limit rod 16 is slidably connected inside the fixing plate 15. A limit hole 17 is provided on the side of the protrusion 13. A limit plate 18 is fixedly installed on the surface of the limit rod 16. A tension spring 19 is sleeved on the surface of the limit rod 16. The cleaning mechanism 7 includes a cleaning brush 701. The cleaning brush 701 is fixedly connected to both sides of the connecting block 702. The heat sink 3 is rotatably connected to the threaded rod 703. The heat sink 3 is fixedly installed on the side of the heat sink 3. The heat sink 3 is fixedly installed on the inside of the heat sink 3. The brush surface of the cleaning brush 701 is in contact with the surface of the dust filter 6. The output end of the motor 704 is fixedly connected to one end of the threaded rod 703. The threaded rod 703 is threadedly connected to the connecting block 702 on one side of the cleaning brush 701. The slide rod 705 is slidably connected to the connecting block 702 on the other side of the cleaning brush 701. The protrusion 13 is slidably connected to the groove 14. The limiting rod 16 is slidably connected to the limiting hole 17. One end of the tension spring 19 is fixedly connected to the side of the limiting plate 18. The other end of the tension spring 19 is fixedly connected to the inside of the fixing plate 15.

[0026] In this embodiment, a cleaning mechanism 7 is provided inside the heat dissipation frame 3. The motor 704 drives the threaded rod 703 to rotate, causing the connecting block 702 to drive the cleaning brush 701 to move up and down. This allows the cleaning brush 701 to move back and forth on the surface of the dust filter 6, sweeping away the dust adhering to the surface of the dust filter 6. This prevents dust from clogging the filter and affecting ventilation and heat dissipation, ensuring the heat dissipation effect of the cooling fan 5, and reducing the frequency and workload of manual cleaning of the filter. At the same time, the collection box 8 provided on the lower surface of the heat dissipation frame 3 is slidably connected to the side groove 14 of the heat dissipation frame 3 through the protrusion 13. It can receive the dust swept down by the cleaning brush 701. When the collection box 8 has accumulated a lot of dust, the limit rod 16 is pulled to disengage it from the limit hole 17, overcoming the tension of the tension spring 19, so that the collection box 8 can be pulled out for cleaning. The operation is convenient.

[0027] Example 2: As Figures 1-6 As shown, a positioning block 20 is fixedly installed on the side of the heat sink frame 3, a positioning hole 21 is opened on the side of the mounting frame 2, a magnet A22 is provided on the side of the heat sink frame 3, a magnet B23 is provided on the inner side of the mounting frame 2, a hexagonal bolt 24 is threadedly connected to the side of the mounting frame 2, the positioning block 20 is slidably connected to the positioning hole 21, the magnet A22 and the magnet B23 are attracted to each other, and the hexagonal bolt 24 is threadedly connected to the positioning block 20.

[0028] In this embodiment, the positioning block 20 on the side of the heat sink frame 3 is slidably connected to the positioning hole 21 on the side of the mounting frame 2. With the mutual attraction of magnet A22 and magnet B23, the heat sink frame 3 and the mounting frame 2 are initially positioned and fixed. Then, the positioning block 20 and the mounting frame 2 are further tightened by hexagonal bolts 24, so that the heat sink frame 3 is firmly installed on the housing 1. This installation method facilitates the quick installation and disassembly of the heat sink frame 3. When the cooling fan 5, dust filter 6 or cleaning mechanism 7 malfunctions, the heat sink frame 3 can be easily disassembled for inspection and replacement of parts, improving the maintainability of the equipment and ensuring the normal operation of the heat dissipation structure of the vector inverter chassis.

[0029] The working principle of this embodiment is as follows: When installing the heat dissipation structure of the vector inverter chassis, first align the positioning block 20 on the side of the heat dissipation frame 3 with the positioning hole 21 on the side of the mounting frame 2. Use magnet A22 and magnet B23 to attract each other to achieve initial positioning. Then, tighten the hexagonal bolt 24 to pass through the side of the mounting frame 2 and connect it with the positioning block 20, so that the heat dissipation frame 3 is firmly installed on the mounting frame 2 of the chassis 1. When in use, the cooling fan 5 starts running, and the hot air inside the chassis enters the heat dissipation frame 3 through the heat dissipation holes 4 on both sides of the chassis 1, and is discharged outside the chassis under the action of the cooling fan 5. During this process, the dust filter 6 intercepts dust in the air to prevent dust from entering the casing. When dust adheres to the surface of the dust filter 6 and affects ventilation, the motor 704 of the cleaning mechanism 7 is activated. The output end of the motor 704 drives the threaded rod 703 to rotate. Since the threaded rod 703 is threadedly connected to the connecting block 702 on one side of the cleaning brush 701, and the slide rod 705 is slidably connected to the connecting block 702 on the other side of the cleaning brush 701, the rotation of the threaded rod 703 causes the cleaning brush 701 to move up and down along the slide rod 705 on the surface of the dust filter 6, sweeping away the dust. The dust that is swept away falls into the collection box 8 on the lower surface of the heat sink frame 3. The collection box 8 is installed by sliding connection between the protrusion 13 on the upper surface and the protrusion 14 on the side of the heat sink frame 3. When a lot of dust accumulates in the collection box 8, the limiting rod 16 is pulled to overcome the tension of the tension spring 19 and disengage from the limiting hole 17 on the side of the protrusion 13. The collection box 8 can then be pulled out along the protrusion 14 for cleaning. After cleaning, the collection box 8 is reinserted into the protrusion 14. Under the action of the tension spring 19, the limiting rod 16 automatically slides into the limiting hole 17, thus fixing the collection box 8.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A vector frequency converter cabinet heat dissipation structure, comprising a cabinet (1), a mounting frame (2) and a heat dissipation frame (3), characterized in that: The box (1) has heat dissipation holes (4) on both sides. A cooling fan (5) is fixedly installed inside the heat dissipation frame (3). A dust filter (6) is provided inside the heat dissipation frame (3). A cleaning mechanism (7) is provided inside the heat dissipation frame (3). A collection box (8) is provided on the lower surface of the heat dissipation frame (3). A protrusion (13) is fixedly connected to the upper surface of the collection box (8). A groove (14) is provided on the side of the heat dissipation frame (3). A fixing plate (15) is fixedly installed on the side of the heat dissipation frame (3). A limit rod (16) is slidably connected inside the fixing plate (15). A limit hole (17) is provided on the side of the protrusion (13). A limit plate (18) is fixedly installed on the surface of the limit rod (16). A tension spring (19) is sleeved on the surface of the limit rod (16). The cleaning mechanism (7) includes a cleaning brush (701), with connecting blocks (702) fixedly connected to both sides of the cleaning brush (701), a threaded rod (703) rotatably connected inside the heat dissipation frame (3), a motor (704) fixedly installed on the side of the heat dissipation frame (3), and a slide rod (705) fixedly installed inside the heat dissipation frame (3). The brush surface of the cleaning brush (701) is in contact with the surface of the dust filter (6), and the output end of the motor (704) is fixedly connected to one end of the threaded rod (703); The threaded rod (703) is threadedly connected to the connecting block (702) on one side of the cleaning brush (701), and the slide rod (705) is slidably connected to the connecting block (702) on the other side of the cleaning brush (701); The protrusion (13) is slidably connected to the groove (14), and the limiting rod (16) is slidably connected to the limiting hole (17); One end of the tension spring (19) is fixedly connected to the side of the limiting plate (18), and the other end of the tension spring (19) is fixedly connected to the inner side of the fixing plate (15). A positioning block (20) is fixedly installed on the side of the heat dissipation frame (3), a positioning hole (21) is opened on the side of the mounting frame (2), a magnet A (22) is provided on the side of the heat dissipation frame (3), a magnet B (23) is provided on the inner side of the mounting frame (2), and the side of the mounting frame (2) is threadedly connected to a hexagonal bolt (24). The positioning block (20) is slidably connected to the positioning hole (21), the magnet A (22) and the magnet B (23) are attracted to each other, and the hexagonal bolt (24) is threadedly connected to the positioning block (20).

Images