A high-voltage distribution cabinet with improved arc-extinguishing grid structure

Abstract

The utility model relates to the technical field of high -voltage distribution cabinet, in particular to a kind of high-voltage distribution cabinet with arc-extinguishing grid improved structure, its improve the reliability and safety of use of arc-extinguishing, improve the handling convenience of arc-extinguishing cover, improve work efficiency;Including distribution cabinet body and arc-extinguishing cover, arc-extinguishing cover is installed on the inside wall of distribution cabinet body;Still include exhaust device, positioning device, multiple arc-extinguishing grid plate, air duct and first fan, multiple arc-extinguishing grid plate are all installed on the inside wall of arc-extinguishing cover, air duct is connected and is arranged on the upper portion of the outside wall of arc-extinguishing cover, first fan is installed in air duct interior, air duct top end is communicated with exhaust device, exhaust device is used to discharge heat outward, positioning device is arranged between distribution cabinet body and arc-extinguishing cover, and positioning device is used to quickly fix arc-extinguishing cover.

Description

Technical Field

[0001] This utility model relates to the technical field of high-voltage distribution cabinets, and in particular to a high-voltage distribution cabinet with an improved arc-extinguishing grid structure. Background Technology

[0002] High-voltage switchgear with arc-extinguishing grid structure plays a vital role in power systems. This type of switchgear, through optimized arc-extinguishing grid structural design, effectively improves arc-extinguishing performance and ensures the safe and stable operation of the power system.

[0003] For example, the existing technology authorization announcement number CN218828523U discloses a power distribution cabinet with arc extinguishing function, including a cabinet and a quick locking unit; the cabinet: a cabinet door is hinged to the left side of the opening on the front surface, and the rear wall of the cabinet is provided with vertically evenly distributed mounting brackets. The mounting brackets are vertically symmetrically arranged with mounting covers that are movably inserted into the sockets through the insertion plates. The inner cavity of the mounting covers is provided with vertically evenly distributed arc extinguishing grid plates.

[0004] However, during use, it was found that the device had a poor heat dissipation and cooling effect on the arc-extinguishing grid, which reduced the arc-extinguishing effect and the reliability of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-voltage distribution cabinet with an improved arc-extinguishing grid structure that improves the reliability and safety of arc extinguishing, enhances the ease of loading and unloading of the arc-extinguishing cover, and increases work efficiency.

[0006] This utility model discloses a high-voltage distribution cabinet with an improved arc-extinguishing grid structure, comprising a distribution cabinet body and an arc-extinguishing hood, the arc-extinguishing hood being installed on the inner side wall of the distribution cabinet body; it also includes an exhaust device, a positioning device, multiple sets of arc-extinguishing grid plates, an air duct, and a first fan. The multiple sets of arc-extinguishing grid plates are all installed on the inner side wall of the arc-extinguishing hood, the air duct is connected and located on the upper part of the outer side wall of the arc-extinguishing hood, the first fan is installed inside the air duct, and the top of the air duct is connected to the exhaust device, which is used to dissipate heat outwards. A positioning device is provided between the distribution cabinet body and the arc-extinguishing hood. The positioning device is used to quickly fix the arc extinguishing cover. When the contacts of the components inside the distribution cabinet break and generate an arc, the arc is pulled into multiple sets of arc extinguishing grids, which extinguish the arc. At the same time, the arc extinguishing grids generate heat and dissipate it outward. At this time, the air is drawn into the arc extinguishing cover by the rotation of the air duct, which dissipates the heat of the multiple sets of arc extinguishing grids by airflow, thereby improving the reliability of arc extinguishing and the safety of use. The positioning device is used to install and fix the arc extinguishing cover, which improves the convenience of the arc extinguishing cover installation and removal operation and improves work efficiency.

[0007] Preferably, the positioning device includes a connector, a cylinder, a slider, a pin, and a spring. The connector is installed on the outer wall of the arc-extinguishing cover, the cylinder is installed on the inner wall of the distribution cabinet, the slider is slidably installed inside the cylinder, and the pin is installed on the outer wall of the slider. The connector has a groove that matches the position of the pin, and the spring is fitted inside the cylinder. When the arc-extinguishing cover is installed on the distribution cabinet, the connector slides through the support component inside the distribution cabinet and moves to the side of the pin. The spring provides a pushing force to the slider, causing the slider to push the front end of the pin into the groove of the connector, thereby quickly fixing the arc-extinguishing cover and improving the ease of operation for rapid pre-installation and fixing of the arc-extinguishing cover.

[0008] Preferably, the exhaust device includes a corrugated pipe, an exhaust hood, and a grille. The bottom end of the corrugated pipe is connected to the air duct, and the top end of the corrugated pipe is connected to the exhaust hood. The exhaust hood is installed on the top of the distribution cabinet, and an exhaust port is provided on the side of the exhaust hood. The grille is installed at the exhaust port of the exhaust hood. The air duct discharges the heat inside the arc-extinguishing hood into the interior of the exhaust hood, and the grille discharges the heat outward, thereby improving the heat dissipation reliability of the multiple sets of arc-extinguishing grids. By setting the grille, the rainproof effect of the exhaust hood is improved, and the protective safety inside the distribution cabinet is improved.

[0009] Preferably, it also includes multiple sets of bolts and multiple sets of guide posts, all of which are installed on the outer wall of the arc extinguishing shroud. When the arc extinguishing shroud is installed on the distribution cabinet, the multiple sets of guide posts are slid through the supporting components of the distribution cabinet, thereby positioning the arc extinguishing shroud by the cooperation of the multiple sets of guide posts and connectors. Then, the multiple sets of bolts are installed between the arc extinguishing shroud and the distribution cabinet, thereby improving the reliability and firmness of the arc extinguishing shroud installation.

[0010] Preferably, it also includes a second fan, which is installed on the outer wall of the distribution cabinet; by turning on the second fan to draw air into the distribution cabinet, the air inside the distribution cabinet is circulated, thereby improving the heat dissipation and cooling effect inside the distribution cabinet.

[0011] Preferably, it also includes a handle, which is installed on the outer wall of the slider; when it is necessary to disassemble the arc extinguishing cover, the slider is slid by pulling the handle, so that the pin is separated from the groove of the connector, thereby improving the convenience of disassembling the arc extinguishing cover.

[0012] Preferably, a flow guide is provided inside the exhaust hood; by providing the flow guide, the smoothness of heat flow and discharge inside the exhaust hood is improved.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When the components in the distribution cabinet break and generate an electric arc, the arc is pulled into multiple sets of arc-extinguishing grids, thereby extinguishing the arc. At the same time, the heat generated by the arc-extinguishing grids is diffused outward. At this time, the air is drawn into the arc-extinguishing hood by the rotation of the air duct, thereby the air flow dissipates heat and cools down the multiple sets of arc-extinguishing grids, improving the reliability of arc extinguishing and the safety of use. The arc-extinguishing hood is installed and fixed by the positioning device, which improves the convenience of the installation and removal of the arc-extinguishing hood and improves work efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is an isometric structural diagram of the connection between the arc-extinguishing shroud and the arc-extinguishing grid plate, etc.

[0016] Figure 3 This is a partial isometric structural diagram of the connection between the air duct and the first fan, etc.

[0017] Figure 4 This is a partial isometric structural diagram of the connection between the arc-extinguishing shield and connecting parts, etc.

[0018] Figure 5 This is a partial isometric structural diagram of the connection between the slider and the pin, etc.

[0019] The following are labeled in the attached diagram: 1. Distribution cabinet; 2. Arc extinguishing hood; 3. Arc extinguishing grid plate; 4. Air duct; 5. First fan; 6. Connector; 7. Cylinder; 8. Slider; 9. Pin; 10. Spring; 11. Bellows; 12. Exhaust hood; 13. Grille; 14. Bolt; 15. Guide column; 16. Second fan; 17. Handle. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 5As shown, this utility model discloses a high-voltage distribution cabinet with an improved arc-extinguishing grid structure, including a distribution cabinet body 1 and an arc-extinguishing cover 2, the arc-extinguishing cover 2 being installed on the inner side wall of the distribution cabinet body 1; it also includes an exhaust device, a positioning device, multiple sets of arc-extinguishing grid plates 3, an air duct 4, and a first fan 5, the multiple sets of arc-extinguishing grid plates 3 being installed on the inner side wall of the arc-extinguishing cover 2, the air duct 4 being connected and arranged on the upper part of the outer side wall of the arc-extinguishing cover 2, the first fan 5 being installed inside the air duct 4, the top end of the air duct 4 being connected to the exhaust device, the exhaust device being used to exhaust heat outward, and a positioning device being provided between the distribution cabinet body 1 and the arc-extinguishing cover 2, the positioning device being used to quickly fix the arc-extinguishing cover 2;

[0022] like Figure 5 As shown, the positioning device includes a connector 6, a cylinder 7, a slider 8, a pin 9, and a spring 10. The connector 6 is installed on the outer wall of the arc extinguishing cover 2, the cylinder 7 is installed on the inner wall of the power distribution cabinet 1, the slider 8 is slidably installed inside the cylinder 7, the pin 9 is installed on the outer wall of the slider 8, the connector 6 is provided with a groove, the groove matches the position of the pin 9, and the spring 10 is fitted inside the cylinder 7.

[0023] In this embodiment, when the components in the distribution cabinet 1 break and generate an electric arc, the arc is drawn into multiple sets of arc-extinguishing grids 3, thereby extinguishing the arc. At the same time, the arc-extinguishing grids 3 generate heat that diffuses outward. At this time, the air duct 4 rotates and draws air into the arc-extinguishing cover 2, thereby allowing the airflow to dissipate heat and cool down the multiple sets of arc-extinguishing grids 3, improving the reliability of arc extinguishing and the safety of use. The arc-extinguishing cover 2 is installed and fixed by the positioning device, improving the convenience of installation and removal of the arc-extinguishing cover 2 and improving work efficiency. Example 2

[0024] Based on Example 1, such as Figure 1 As shown, this utility model discloses a high-voltage distribution cabinet with an improved arc-extinguishing grid structure. The exhaust device includes a corrugated pipe 11, an exhaust hood 12, and a grille 13. The bottom end of the corrugated pipe 11 is connected to the air duct 4, and the top end of the corrugated pipe 11 is connected to the exhaust hood 12. The exhaust hood 12 is installed on the top of the distribution cabinet body 1, and an exhaust port is provided on the side of the exhaust hood 12. The grille 13 is installed at the exhaust port of the exhaust hood 12.

[0025] like Figure 3 As shown, it also includes multiple sets of bolts 14 and multiple sets of guide posts 15, all of which are installed on the outer wall of the arc-extinguishing chamber 2.

[0026] like Figure 2 As shown, it also includes a second fan 16, which is installed on the outer wall of the power distribution cabinet 1;

[0027] like Figure 5 As shown, it also includes a handle 17, which is mounted on the outer wall of the slider 8;

[0028] like Figure 2 As shown, a flow guide is provided inside the exhaust hood 12;

[0029] In this embodiment, after the arc extinguishing cover 2 is installed on the distribution cabinet 1, the connector 6 slides through the support component inside the distribution cabinet 1 and moves to the side of the pin 9. The spring 10 provides a pushing force to the slider 8, causing the slider 8 to push the front end of the pin 9 into the groove of the connector 6, thereby quickly fixing the arc extinguishing cover 2 and improving the ease of operation for quick pre-installation and fixing of the arc extinguishing cover 2. The air duct 4 discharges the heat inside the arc extinguishing cover 2 into the exhaust cover 12, and the heat is discharged outward through the grille 13, thereby improving the heat dissipation reliability of the multiple sets of arc extinguishing grid plates 3. By setting the grille 13, the rainproof effect of the exhaust cover 12 is improved, and the safety inside the distribution cabinet 1 is improved.

[0030] This utility model discloses a high-voltage distribution cabinet with an improved arc-extinguishing grid structure. When the contacts of the components inside the distribution cabinet 1 break and generate an electric arc, the arc is pulled into multiple sets of arc-extinguishing grid plates 3, thereby extinguishing the arc. At the same time, the arc-extinguishing grid plates 3 generate heat that diffuses outward. At this time, the air is drawn into the arc-extinguishing hood 2 by the rotation of the air duct 4, thereby allowing the airflow to dissipate heat and cool down the multiple sets of arc-extinguishing grid plates 3.

[0031] The distribution cabinet body 1, the first fan 5 and the second fan 16 of the high-voltage distribution cabinet with the improved arc-extinguishing grid structure of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure, comprising a distribution cabinet body (1) and an arc-extinguishing cover (2), wherein the arc-extinguishing cover (2) is installed on the inner side wall of the distribution cabinet body (1); characterized in that, It also includes an exhaust device, a positioning device, multiple sets of arc-extinguishing grids (3), an air duct (4), and a first fan (5). Multiple sets of arc-extinguishing grids (3) are installed on the inner side wall of the arc-extinguishing cover (2). The air duct (4) is connected and installed on the upper part of the outer side wall of the arc-extinguishing cover (2). The first fan (5) is installed inside the air duct (4). The top of the air duct (4) is connected to the exhaust device. The exhaust device is used to exhaust heat outward. A positioning device is provided between the power distribution cabinet (1) and the arc-extinguishing cover (2). The positioning device is used to quickly fix the arc-extinguishing cover (2).

2. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 1, characterized in that, The positioning device includes a connector (6), a cylinder (7), a slider (8), a pin (9), and a spring (10). The connector (6) is installed on the outer wall of the arc extinguishing cover (2), the cylinder (7) is installed on the inner wall of the distribution cabinet (1), the slider (8) is slidably installed inside the cylinder (7), the pin (9) is installed on the outer wall of the slider (8), the connector (6) is provided with a groove, the groove is matched with the position of the pin (9), and the spring (10) is fitted inside the cylinder (7).

3. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 1, characterized in that, The exhaust device includes a corrugated pipe (11), an exhaust hood (12), and a grille (13). The bottom end of the corrugated pipe (11) is connected to the air duct (4), and the top end of the corrugated pipe (11) is connected to the exhaust hood (12). The exhaust hood (12) is installed on the top of the power distribution cabinet (1), and an exhaust port is provided on the side of the exhaust hood (12). The grille (13) is installed at the exhaust port of the exhaust hood (12).

4. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 1, characterized in that, It also includes multiple sets of bolts (14) and multiple sets of guide posts (15), all of which are installed on the outer wall of the arc extinguishing cover (2).

5. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 1, characterized in that, It also includes a second fan (16), which is installed on the outer wall of the distribution cabinet (1).

6. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 2, characterized in that, It also includes a handle (17), which is mounted on the outer wall of the slider (8).

7. A high-voltage distribution cabinet with an improved arc-extinguishing grid structure as described in claim 3, characterized in that, A flow guide is provided inside the exhaust hood (12).

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