Exhaust structure for high-voltage cabinet

Abstract

The utility model provides an exhaust structure for a high-voltage cabinet, which not only can avoid deformation of a wind baffle plate and effectively exhaust heat gas in the cabinet according to a path, but also is convenient to mount and dismount; the high-voltage cabinet comprises a high-voltage cabinet body, a high-voltage transformer is installed in the high-voltage cabinet body, an air exhaust assembly is arranged in the high-voltage cabinet body, and the air exhaust assembly comprises a left side plate, a right side plate, a front plate and a transverse partition plate. The left side plate, the right side plate, the front plate, the transverse partition plate and the inner wall face of one side of the high-voltage cabinet body jointly form a frame-shaped sealing structure which is provided with an inner cavity, the top and the back of the frame-shaped sealing structure are open, the interior of the high-voltage transformer is communicated with the bottom of the inner cavity, and a high-heat section of the high-voltage cabinet body is located in the inner cavity. A centrifugal fan is detachably arranged at the top end of the high-voltage cabinet body at the opening position of the frame-shaped sealing structure, and the input end of the centrifugal fan is communicated with the inner cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage equipment, in particular to an exhaust structure for a high-voltage cabinet. Background Art

[0002] High-voltage transformers and other electrical equipment are usually installed in high-voltage cabinets. When the high-voltage transformer is in operation, the windings, cores, etc. will generate a lot of heat. Therefore, some high-voltage cabinets are equipped with forced air cooling devices to quickly discharge the heat to ensure the stability and safety of the high-voltage transformer. Therefore, in order to improve the heat dissipation efficiency, a special structure is required to ensure the airflow guidance of the high-voltage transformer exhaust in the high-voltage cabinet.

[0003] At present, after the high-voltage transformer is installed in the high-voltage cabinet, a full-length windshield baffle is installed in the high-voltage cabinet to divide the heat flow and prevent the flow direction of the hot gas in the high-voltage cabinet from being disordered. However, the design and installation structure of the windshield baffle is prone to sagging and deformation, and it cannot fit completely with the high-voltage cabinet, resulting in a gap between the windshield baffle and the high-voltage cabinet body that cannot be sealed. Then the exhaust air cannot flow in the direction of the expected exhaust path, and the heat cannot be completely discharged according to the calculated value. In addition, in order to fit the cabinet body as much as possible, the windshield baffle is usually designed to be larger than the width of the cabinet body, which is inconvenient during installation and disassembly, and is also more prone to damage. Summary of the Invention

[0004] In response to the above problems, the present invention provides an exhaust structure for a high-voltage cabinet, which not only avoids deformation of the windshield partition, effectively discharges the hot gas in the cabinet along a path, but also facilitates installation and disassembly.

[0005] The present invention adopts the following technical scheme: an exhaust structure for a high-voltage cabinet, which includes a high-voltage cabinet body, and a high-voltage transformer is installed in the high-voltage cabinet body, and is characterized in that an exhaust component is provided in the high-voltage cabinet body, and the exhaust component includes a left side panel, a right side panel, a front panel, and a transverse partition. The left side panel, the right side panel, the front panel, the transverse partition and the inner wall surface of one side of the high-voltage cabinet body together constitute a frame-type sealing structure with an inner cavity and openings on the top and back. The interior of the high-voltage transformer is connected to the bottom of the inner cavity, and the high-temperature section of the high-voltage cabinet body is located in the inner cavity. A centrifugal fan is detachably installed on the top of the high-voltage cabinet body located at the opening position of the frame-type sealing structure, and the input end of the centrifugal fan is connected to the inner cavity.

[0006] Furthermore, the left side plate, right side plate, front plate and transverse partition are respectively arranged on the left side, right side, front side and bottom of the high-voltage transformer high-temperature section, so as to enclose the inner cavity of the frame structure into a square or rectangular cavity together with the inner wall surface of one side of the high-voltage cabinet;

[0007] Furthermore, the left side panel, right side panel, front panel and transverse partition are all made of insulating materials;

[0008] Furthermore, a distance is left between the frame structure and the inner wall surface on the other side of the high-voltage cabinet;

[0009] Furthermore, the top of the high-voltage cabinet is detachably connected to an exhaust hood, and the centrifugal fan is assembled in the exhaust hood;

[0010] Furthermore, air outlets are provided on the side walls of the exhaust hood.

[0011] The beneficial effect of the present invention is that a corresponding frame-type sealing structure is provided in the high-voltage cabinet located in the high-temperature section of the high-voltage transformer, so that the heat generated by the high-voltage transformer is concentrated in the inner cavity, and then the generated hot gas can be effectively discharged along a predetermined path through the action of the centrifugal fan, and the sagging and deformation of the installation structure can be avoided. The installation and disassembly are relatively convenient, and the utility model has good economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the main view of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 It is a side view of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the exhaust hood in the utility model. DETAILED DESCRIPTION

[0016] like Figures 1 to 4 As shown, the utility model is an exhaust structure for a high-voltage cabinet, which includes a high-voltage cabinet 1, a high-voltage transformer 2 is installed in the high-voltage cabinet 1, and an exhaust component is provided in the high-voltage cabinet 1, and the exhaust component includes a left side panel 4, a right side panel 5, a front panel 6, and a transverse partition 7. The left side panel 4, the right side panel 5, the front panel 6, the transverse partition 7 and the inner wall surface of one side of the high-voltage cabinet 1 together constitute a frame-type sealing structure with an inner cavity 8 and openings on the top and back. The interior of the high-voltage transformer 2 is connected with the bottom of the inner cavity 8. At this time, the high-temperature section of the high-voltage cabinet 1 is located in the inner cavity 8. A centrifugal fan (not shown in the figure) is detachably installed on the top of the high-voltage cabinet 1 located at the opening position of the frame-type sealing structure, and the input end of the centrifugal fan is connected to the inner cavity 8.

[0017] The left side panel 4, the right side panel 5, the front panel 6, and the transverse partition 7 are respectively arranged on the left side, right side, front side and bottom of the high-temperature section of the high-voltage transformer 2, so as to enclose the inner cavity 8 of the frame structure together with the inner wall surface of one side of the high-voltage cabinet 1 into a square or rectangular cavity; the left side panel 4, the right side panel 5, the front panel 6, and the transverse partition 7 are made of insulating material, such as epoxy resin; a gap is left between the front panel 6, the transverse partition 7 and the inner wall surface of the other side of the high-voltage cabinet 1.

[0018] An exhaust hood 3 is detachably connected to the top of the high-voltage cabinet 1, and the centrifugal fan is assembled in the exhaust hood 3, that is, the exhaust hood 3 and the built-in centrifugal fan are connected to the inner cavity 8; air outlets are provided on the four side walls of the exhaust hood 3, so that the exhaust hood 3 can discharge air on all sides, and can guide heat from the inner cavity 8 to the outside of the high-voltage cabinet 1.

[0019] In the present invention, the centrifugal fan is arranged at the top of the high-voltage cabinet 1 located at the opening position of the frame-type sealing structure. The high-temperature section of the high-voltage cabinet 1 can be wrapped by the frame-type sealing structure and the structure of the high-voltage transformer 2 itself, so that the heat generated by the high-temperature section is concentrated in the inner cavity 8, and then the cooling air is introduced through the centrifugal fan (it can be achieved by opening an air outlet on the side of the high-voltage cabinet so that the centrifugal fan can introduce the cooling air from the outside of the high-voltage cabinet 1 into the high-voltage cabinet 1), and the cooling air will pass through the bottom of the high-voltage transformer 2 and the inner cavity 8, and then discharge the heat out of the high-voltage cabinet 1 according to a predetermined path.

[0020] In addition, the frame structure utilizes the inner wall of one side of the high-voltage cabinet 1 to block the wind, which not only fixes the air duct and reduces the use of materials, but also reduces the area that the frame structure and the high-voltage cabinet 1 need to fit together, making installation convenient; and there is a gap between the frame structure and the inner wall of the other side of the high-voltage cabinet 1, which shortens the length and reduces the occurrence of deformation; at the same time, it is only necessary to remove the cabinet panel on the inner wall of one side of the high-voltage cabinet 1 to observe the high-voltage transformer 2, which is convenient for transformer maintenance.

[0021] The arrows in the figure indicate the direction of wind flow.

[0022] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0023] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An exhaust structure for a high-voltage cabinet, comprising a high-voltage cabinet body, a high-voltage transformer installed in the high-voltage cabinet body, characterized in that: An exhaust assembly is provided in the high-voltage cabinet, and the exhaust assembly includes a left side panel, a right side panel, a front panel, and a transverse partition. The left side panel, the right side panel, the front panel, the transverse partition and the inner wall surface of one side of the high-voltage cabinet together constitute a frame-type sealing structure with an inner cavity and openings on the top and back. The interior of the high-voltage transformer is connected to the bottom of the inner cavity, and the high-temperature section of the high-voltage cabinet is located in the inner cavity. A centrifugal fan is detachably installed on the top of the high-voltage cabinet located at the opening position of the frame-type sealing structure, and the input end of the centrifugal fan is connected to the inner cavity.

2. The exhaust structure for a high-voltage cabinet according to claim 1, characterized in that: The left side plate, right side plate, front plate and transverse partition are respectively arranged on the left side, right side, front and bottom of the high-voltage transformer high-temperature section, so as to enclose the inner cavity of the frame-type sealing structure into a square or rectangular cavity together with the inner wall surface of one side of the high-voltage cabinet.

3. The exhaust structure for a high-voltage cabinet according to claim 1, characterized in that: The left side plate, the right side plate, the front plate and the transverse partition plate are all made of insulating materials.

4. The exhaust structure for a high-voltage cabinet according to claim 1, characterized in that: A distance is left between the frame-type sealing structure and the inner wall surface on the other side of the high-voltage cabinet.

5. The exhaust structure for a high-voltage cabinet according to claim 1, characterized in that: The top of the high-voltage cabinet is detachably connected to an exhaust hood, and the centrifugal fan is assembled in the exhaust hood.

6. The exhaust structure for a high-voltage cabinet according to claim 5, characterized in that: The side walls of the exhaust hood are all provided with air outlets.

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