Circulating cooling type power distribution cabinet

Abstract

The utility model relates to the technical field of power distribution cabinets, and discloses a circulating cooling type power distribution cabinet which comprises a control cabinet body, the side wall of the control cabinet body is provided with a heat dissipation structure used for cooling a cavity of the control cabinet body, the heat dissipation structure comprises a cooling box, a heat exchange tube and fins, the cooling box is fixedly connected with the control cabinet body, and the fins are fixedly connected with the cooling box. The heat exchange tube is fixedly connected with the cooling box, the wall surface of the cooling box is fixedly connected with a plurality of fins, the heat exchange tube penetrates through the fins, the cooling box is provided with a storage cavity, and cold air flows from top to bottom to circularly cool electrical components in the cavity of the control cabinet body; the cooling effect on circulating air is improved, the cooling effect is good, the external cooling box enables liquid not to permeate into the control cabinet body, better safety is achieved, the overall structure is simple, and the overall structure of an existing control cabinet is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution cabinets, in particular to a circulating cooling type distribution cabinet. Background Art

[0002] The prior art discloses a sealed circulating cooling distribution cabinet (N202010025888.X), belonging to the technical field of distribution cabinets. In order to cool down the distribution cabinet, the distribution cabinet includes a cabinet body, a cooling layer, a storage layer and a connecting pipe arranged outside the cabinet body; various switches are accommodated inside the cabinet body, a cooling gap is arranged between the cooling layer and the side surface of the cabinet body, a spray pipe is arranged at the upper part of the cooling layer, and a plurality of liquid spray holes are arranged on one side facing the side wall of the cabinet body;

[0003] The prior art mainly sprays liquid on the fins extending into the cabinet body, and uses the liquid to cool the fins to realize the cooling of internal components. However, the spraying method requires corresponding chambers to be arranged and needs to be partitioned from the chambers inside the cabinet body. The overall structure of the cabinet body needs to be adjusted, and the volume will also be relatively large. As time goes by, the spraying position will leak liquid due to rust, and the sprayed coolant entering the cabinet body will cause damage to electrical components, having certain potential hazards. For the heat exchange method between hot air and coolant, there is a certain room for optimization.

[0004] Therefore, we propose a circulating cooling type distribution cabinet. Content of the Utility Model

[0005] The utility model mainly solves the technical problems existing in the above prior art, and provides a circulating cooling type distribution cabinet.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme. A circulating cooling type distribution cabinet includes a control cabinet body. The control cabinet body forms an open box structure. A sealing door is hinged at the opening of the control cabinet body, and the sealing door blocks and seals the opening of the control cabinet body. A heat dissipation structure for cooling the chamber of the control cabinet body is arranged on the side wall of the control cabinet body. The heat dissipation structure includes a cooling box, a heat exchange pipe and fins. The cooling box is fixedly connected with the control cabinet body, the heat exchange pipe is fixedly connected with the cooling box, a plurality of fins are fixedly connected to the wall surface of the cooling box, the heat exchange pipe penetrates through each fin, the cooling box has a storage cavity, cooling water is injected into the storage cavity, and the heat exchange pipe is communicated with the chamber of the control cabinet body.

[0007] As a preferred mode of the utility model, the heat dissipation structure further includes a connecting pipe. The two ports of the heat exchange pipe are fixedly connected with the same connecting pipe, and both connecting pipes are fixedly connected with the control cabinet body and extend into the chamber of the control cabinet body. An exhaust fan is installed at the port of one of the connecting pipes.

[0008] As a preferred embodiment of the present utility model, the connecting pipe forms an L-shaped pipe, and the two connecting pipes and the heat exchange pipe together form a section of U-shaped pipe. One of the connecting pipes extends to a position near the bottom inside the control cabinet body cavity, and the other connecting pipe extends to the top position inside the control cabinet body cavity. The exhaust fan is installed at the port of the upper connecting pipe located inside the control cabinet body cavity.

[0009] As a preferred embodiment of the present utility model, a plurality of notches are formed on the side wall surface of the cooling box, and a plurality of fins are arranged inside the cooling box cavity. The fins extend to the outside of the cooling box through the corresponding notches.

[0010] As a preferred embodiment of the present utility model, circular holes are formed through the wall surface of the fin, the heat exchange pipe passes through the circular holes and is fixedly connected to the fin. The horizontal cross-sectional shape of the fin includes a rectangle but is not limited to a rectangle, and the notch and the fin are used in cooperation with each other.

[0011] As a preferred embodiment of the present utility model, the heat dissipation structure further includes a plurality of guiding bodies arranged inside the heat exchange pipe, and the guiding bodies divide the heat exchange pipe cavity into a funnel-shaped flow channel.

[0012] As a preferred embodiment of the present utility model, the heat exchange pipe forms a circular funnel-shaped structure, the guiding body is fixedly connected to the inner wall surface of the heat exchange pipe, the smaller opening of the guiding body faces the air flow direction, and the smaller port of the lower guiding body is inserted into the belly of another adjacent upper guiding body.

[0013] Beneficial effects

[0014] The present utility model provides a circulating cooling type power distribution cabinet. It has the following beneficial effects:

[0015] 1. For this circulating cooling type power distribution cabinet, air is sent into the control cabinet body cavity through the exhaust fan at the connecting pipe port, and the air is drawn back into the heat exchange pipe through the lower connecting pipe. The coolant in the cooling box can cool the gas flowing through the cooling box cavity to achieve heat dissipation. The cooled cold air is sent back to the top position inside the control cabinet body cavity by the exhaust fan again, and the cold air flows from top to bottom to realize the circulating cooling of the electrical components inside the control cabinet body cavity. By arranging fins, the contact area between the heat exchange pipe and the coolant can be increased, and the cooling effect on the circulating air can be improved. It has the characteristic of good cooling effect. The downward flow of cold air also more conforms to the air convection effect. The external cooling box makes the liquid not penetrate into the control cabinet body, having better safety. The overall structure is concise and does not affect the overall structure of the existing control cabinet.

[0016] 2. The circulating cooling type power distribution cabinet, by setting notches, enables the fins to extend through the notches into the belly of the cooling box. The part of the fins outside the cavity of the cooling box can contact the outside air, improving the heat dissipation effect of the coolant in the cavity of the cooling box, ensuring the cooling of the circulating air, and cooperating with the continuous circulation of the air in the cavity of the control cabinet body to achieve sealed cooling, reducing the entry of dust and water vapor, and better protecting the electrical components.

[0017] 3. The circulating cooling type power distribution cabinet, by setting a plurality of guiding bodies, uses the guiding bodies to divide the chamber of the heat exchange tube to form a funnel-shaped flow channel. When the circulating air in the control cabinet body flows through the chamber of the heat exchange tube, it can better guide the gas, and at the same time increase the contact area between the circulating air and the heat exchange tube, promoting the heat exchange between the circulating air and the coolant, and ensuring the cooling of the air. Description of the Drawings

[0018] Figure 1 is one of the three-dimensional views of the present utility model;

[0019] Figure 2 is the second three-dimensional view of the present utility model;

[0020] Figure 3 is the three-dimensional view of the cooling box of the present utility model;

[0021] Figure 4 is the three-dimensional view of the fins, heat exchange tubes and connecting tubes of the present utility model;

[0022] Figure 5 is the installation schematic diagram of the guiding body and the heat exchange tube of the present utility model;

[0023] Figure 6 is the sectional view of the heat exchange tube.

[0024] Legend: 10, control cabinet body; 20, cooling box; 21, heat exchange tube; 22, connecting tube; 23, fin; 30, guiding body. Detailed Description of the Preferred Embodiments

[0025] A circulating cooling type power distribution cabinet, as Figure 1 shown, includes a control cabinet body 10. The control cabinet body 10 forms an open box structure. A sealing door is hinged at the opening of the control cabinet body 10, and the sealing door blocks and seals the opening of the control cabinet body 10. A partition is provided inside the control cabinet body 10, and the control electrical components are installed on the partition. The length of the partition is less than the depth of the cavity of the control cabinet body 10, thereby ensuring air flow.

[0026] As Figure 2 , Figure 3 and Figure 4As shown in the figure, the side wall of the control cabinet body 10 is provided with a heat dissipation structure for cooling the chamber of the control cabinet body 10. The heat dissipation structure includes a cooling box 20, a heat exchange tube 21 and fins 23. The cooling box 20 is fixedly connected to the control cabinet body 10, the heat exchange tube 21 is fixedly connected to the cooling box 20, several fins 23 are fixedly connected to the wall surface of the cooling box 20, the heat exchange tube 21 penetrates through each fin 23, the cooling box 20 has a storage chamber, and cooling water is injected into the storage chamber. The heat exchange tube 21 is communicated with the chamber of the control cabinet body 10. The heat dissipation structure further includes a connecting pipe 22. The two ports of the heat exchange tube 21 are fixedly connected to the same connecting pipe 22. Both connecting pipes 22 are fixedly connected to the control cabinet body 10 and extend into the chamber of the control cabinet body 10. An exhaust fan is installed at the port of one of the connecting pipes 22. The connecting pipe 22 forms an L-shaped pipe. The two connecting pipes 22 and the heat exchange tube 21 together form a U-shaped pipe. One of the connecting pipes 22 extends to a position near the bottom in the chamber of the control cabinet body 10, and the other connecting pipe 22 extends to the top position in the chamber of the control cabinet body 10. The exhaust fan is installed at the port of the upper connecting pipe 22 located in the chamber of the control cabinet body 10. In this solution, it should be noted that the top surface of the control cabinet body 10 is provided with a rectangular surround. The surround is not shown in the figure. The wall surface of the surround is provided with a drain pipe, and the drain pipe extends into the chamber of the cooling box 20. Rainwater can be collected through the surround on rainy days and transported into the cooling box 20 for heat dissipation. Of course, coolant can also be added to the cooling box 20, such as the antifreeze of a car. The exhaust fan at the port of the connecting pipe 22 sends air into the chamber of the control cabinet body 10, and the air is drawn back into the heat exchange tube 21 through the lower connecting pipe 22. The coolant in the cooling box 20 can cool the gas flowing through the chamber of the cooling box 20 to achieve heat dissipation. The cooled cold air is sent back to the top position in the chamber of the control cabinet body 10 by the exhaust fan again. The cold air flows from top to bottom to realize the circulating cooling of the electrical components in the chamber of the control cabinet body 10. By setting the fins 23, the contact area between the heat exchange tube 21 and the coolant can be increased, the cooling effect on the circulating air can be improved, and it has the characteristic of good cooling effect. The downward flow of the cold air also more conforms to the air convection effect;

[0027] In order to reduce the evaporation of the coolant, a cover plate can be installed at the top opening of the cooling box 20. The cover plate is not shown in the figure. Two cover plates need to be set. Two arc-shaped grooves are opened on both cover plates. When the two cover plates are closed, the arc-shaped grooves form a circular hole for the heat exchange tube 21 and the water pipe to pass through.

[0028] Such as Figure 3 and Figure 4As shown, a plurality of notches are provided on the side wall surface of the cooling box 20, and a plurality of fins 23 are arranged in the cavity of the cooling box 20. The fins 23 pass through the corresponding notches and extend to the outside of the cooling box 20. Round holes are penetrated through the wall surface of the fins 23, and the heat exchange tubes 21 pass through the round holes and are fixedly connected to the fins 23. The horizontal cross-sectional shape of the fins 23 includes a rectangle but is not limited to a rectangle. The notches and the fins 23 are used in cooperation. By providing the notches, the fins 23 pass through the notches and extend into the belly of the cooling box 20. The part of the fins 23 located outside the cavity of the cooling box 20 can contact the outside air, improving the heat dissipation effect of the coolant in the cavity of the cooling box 20, ensuring the cooling of the circulating air, cooperating with the continuous circulation of the air in the cavity of the control cabinet body 10, realizing sealed cooling, reducing the entry of dust and water vapor, and better protecting the electrical components;

[0029] It should be noted that a cooling fan can be installed outside the cooling box 20. The fan is not shown in the figure. The cooling fan needs to be directly opposite to each fin 23 extending out of the cooling box 20, thereby promoting the cooling of the coolant. The cooling fan is a prior art, and the specific specifications and connection methods are not limited too much here.

[0030] As Figure 5 and Figure 6 shown, the heat dissipation structure further includes a plurality of guiding bodies 30 arranged in the heat exchange tubes 21. The guiding bodies 30 divide the chamber of the heat exchange tubes 21 into funnel-shaped flow channels. The heat exchange tubes 21 form a circular funnel-shaped structure. The guiding bodies 30 are fixedly connected to the inner wall surface of the heat exchange tubes 21. The smaller openings of the guiding bodies 30 face the air flow direction. The smaller ports of the lower guiding bodies 30 are inserted into the belly of the adjacent upper guiding body 30. By providing a plurality of guiding bodies 30, the guiding bodies 30 are used to divide the chamber of the heat exchange tubes 21 to form funnel-shaped flow channels. During the process that the circulating air in the control cabinet body 10 flows through the chamber of the heat exchange tubes 21, the gas can be better guided, and at the same time, the contact area between the circulating air and the heat exchange tubes 21 is increased, promoting the heat exchange between the circulating air and the coolant and ensuring the cooling of the air.

[0031] The working principle of the present utility model: The exhaust fan at the port of the connecting pipe 22 sends air into the cavity of the control cabinet body 10, and the air is drawn back into the heat exchange tubes 21 through the lower connecting pipe 22. The coolant in the cooling box 20 can cool the gas flowing through the chamber of the cooling box 20. The guiding bodies 30 are used to divide the chamber of the heat exchange tubes 21 to form funnel-shaped flow channels. During the process that the circulating air in the control cabinet body 10 flows through the chamber of the heat exchange tubes 21, the gas can be better guided, and at the same time, the contact area between the circulating air and the heat exchange tubes 21 is increased. By providing the fins 23, the contact area between the heat exchange tubes 21 and the coolant can be increased, improving the cooling effect on the circulating air. The fins 23 pass through the notches and extend into the belly of the cooling box 20. The part of the fins 23 located outside the cavity of the cooling box 20 can contact the outside air, improving the heat dissipation effect of the coolant in the cavity of the cooling box 20.

[0032] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A circulating cooling type power distribution cabinet, comprising a control cabinet body (10), wherein the control cabinet body (10) forms an open box structure, a sealing door is hinged at the opening of the control cabinet body (10), and the sealing door blocks the opening of the control cabinet body (10), characterized in that: The side wall of the control cabinet body (10) is provided with a heat dissipation structure for cooling the chamber of the control cabinet body (10), the heat dissipation structure comprising a cooling box (20), a heat exchange tube (21) and fins (23); the cooling box (20) is fixedly connected to the control cabinet body (10); the heat exchange tube (21) is fixedly connected to the cooling box (20); a plurality of fins (23) are fixedly connected to the wall surface of the cooling box (20); the heat exchange tube (21) passes through each fin (23); the cooling box (20) has a storage cavity, cooling water is injected into the storage cavity, and the heat exchange tube (21) is connected to the chamber of the control cabinet body (10).

2. The circulating cooling power distribution cabinet according to claim 1, characterized in that: The heat dissipation structure further comprises a connecting pipe (22), the two ports of the heat exchange pipe (21) are both fixedly connected to the same connecting pipe (22), the two connecting pipes (22) are both fixedly connected to the control cabinet body (10) and extend into the cavity of the control cabinet body (10), and an exhaust fan is installed at the port of one of the connecting pipes (22).

3. The circulating cooling power distribution cabinet according to claim 2 is characterized in that: The connecting pipe (22) forms an L-shaped pipe, and the two connecting pipes (22) and the heat exchange pipe (21) together form a section of a U-shaped pipe, wherein one connecting pipe (22) extends to a position close to the bottom of the cavity of the control cabinet body (10), and the other connecting pipe (22) extends to a top position of the cavity of the control cabinet body (10), and the exhaust fan is installed at a port of the upper connecting pipe (22) located in the cavity of the control cabinet body (10).

4. The circulating cooling power distribution cabinet according to claim 1, characterized in that: A plurality of slots are provided on the side wall surface of the cooling box (20), a plurality of fins (23) are arranged in the cavity of the cooling box (20), and the fins (23) extend through the corresponding slots to the outside of the cooling box (20).

5. The circulating cooling type power distribution cabinet according to claim 4, characterized in that: A circular hole is formed through the wall of the fin (23); the heat exchange tube (21) passes through the circular hole and is fixedly connected to the fin (23); the horizontal cross-sectional shape of the fin (23) includes a rectangle but is not limited to a rectangle; the notch and the fin (23) are used in conjunction with each other.

6. The circulating cooling power distribution cabinet according to claim 1, characterized in that: The heat dissipation structure further comprises a plurality of guide bodies (30) arranged in the heat exchange tube (21), wherein the guide bodies (30) divide the chamber of the heat exchange tube (21) into funnel-shaped flow channels.

7. The circulating cooling power distribution cabinet according to claim 6, characterized in that: The heat exchange tube (21) forms a circular funnel-shaped structure, the guide body (30) is fixedly connected to the inner wall surface of the heat exchange tube (21), the smaller opening of the guide body (30) faces the air flow direction, and the smaller port of the lower guide body (30) is inserted into the belly of another adjacent guide body (30) above.

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