Ring main unit convenient to ventilate
By introducing ventilation fans and filter racks into the ring main unit, the problem of poor ventilation in the ring main unit is solved, achieving independent heat dissipation and dust removal effects, and improving the safety and service life of the components.
Patent Information
- Application Number
- CN202520012427.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-03
AI Technical Summary
The existing ring main unit has poor ventilation, which leads to heat buildup in the components, making them prone to damage, and dust accumulation reduces the heat dissipation effect.
A ring main unit was designed, comprising a cabinet, a base frame, transmission pipes, a dust collection box, a filter frame, and a ventilation unit. By installing a ventilation fan at the center of the rear end of the cabinet, independent heat dissipation and ventilation are achieved through the transmission pipes and the filter frame, thus avoiding heat exchange.
It achieves effective heat dissipation and ventilation, prevents components from overheating and being damaged, reduces dust accumulation, and improves the service life of the ring main unit.
Smart Images

Figure CN223828930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ring main unit technology, specifically a ring main unit with convenient ventilation. Background Technology
[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a steel plate metal cabinet or assembled into a modular ring main power supply unit. Its core components are load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and enhanced power supply safety.
[0003] Existing ring main units rely solely on ventilation windows for ventilation, but these windows are insufficient for heat dissipation within the unit. Over extended periods, the components cannot dissipate heat effectively, leading to damage. Even with cooling fans, the top fan also draws heat from the bottom to the top, causing additional heat buildup on the components and increasing the risk of burnout. Furthermore, dust accumulates after prolonged use, further reducing heat dissipation. Therefore, this invention provides a ring main unit with improved ventilation to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a conveniently ventilated ring main unit to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a convenient ventilation ring network cabinet, comprising a cabinet body, a base frame, a transmission pipe A, a dust removal box, a transmission pipe B, a filter frame, and a ventilation fan box. The base frame is installed on both sides of the bottom end of the cabinet body, and the cabinet body is provided with mounting cavities at the top and bottom ends respectively. The cabinet body is provided with first ventilation windows on both sides of the upper end, and the cabinet body is provided with second ventilation windows on both sides of the lower end.
[0006] A dust collection box is installed at the center of the rear end of the cabinet. The upper end of the dust collection box is connected to the installation cavity through a transmission pipe A, and the lower end of the dust collection box is connected to the installation cavity through a transmission pipe B. A filter frame is embedded inside the dust collection box, and a dust collection screen is installed on the filter frame. The filter frame is slidably connected to the dust collection box.
[0007] A ventilation fan box is installed at the rear end of the dust collection box, and a ventilation fan is installed inside the ventilation fan box.
[0008] As a preferred embodiment of this utility model, the filter frame is located in the slots provided at the upper and lower ends of the dust removal box.
[0009] As a preferred embodiment of this invention, a handle is installed at the center of the right end of the filter frame.
[0010] In a preferred embodiment of this invention, the dust removal screen is located behind the connection point between the dust removal box and transmission pipes A and B.
[0011] As a preferred embodiment of this utility model, both the first ventilation window and the second ventilation window are inclined structures with the left side higher than the right side.
[0012] As a preferred embodiment of this utility model, the base frame has an L-shaped structure.
[0013] Compared with the prior art, the beneficial effects of this utility model are: by providing a ventilation fan at the center of the rear end of the cabinet, the ventilation fan extracts heat from the two separate mounting cavities, achieving the effect of heat dissipation and ventilation. At the same time, the heat from the two separate mounting cavities will not be exchanged, thus achieving a good ventilation effect. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the filter frame structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the internal connection structure between the dust collector and the transmission pipeline of this utility model;
[0017] Figure 4 This is a left view of the internal connection structure between the ventilation box and the ventilation fan of this utility model;
[0018] Figure 5 This is a partial front view of the ventilation window structure of this utility model.
[0019] In the diagram: 1. Cabinet; 2. Base frame; 3. First ventilation window; 4. Second ventilation window; 5. Transmission pipe A; 6. Dust collection box; 7. Transmission pipe B; 8. Filter rack; 9. Ventilation fan box; 10. Dust collection screen; 11. Handle; 12. Card slot; 13. Ventilation fan. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.
[0023] Example: Figure 1-5 This utility model provides a technical solution: including a cabinet 1, a base frame 2, a transmission pipe A5, a dust removal box 6, a transmission pipe B7, a filter frame 8, and a ventilation box 9. The base frame 2 is installed on both sides of the bottom end of the cabinet 1. The upper and lower ends of the cabinet 1 are respectively provided with mounting cavities. The upper ends of the cabinet 1 are provided with first ventilation windows 3 on both sides, and the lower ends of the cabinet 1 are provided with second ventilation windows 4 on both sides.
[0024] A dust collector 6 is installed at the center of the rear end of the cabinet 1. The upper end of the dust collector 6 is connected to the installation cavity through a transmission pipe A5, and the lower end of the dust collector 6 is connected to the installation cavity through a transmission pipe B7. A filter frame 8 is embedded inside the dust collector 6, and a dust collection screen 10 is installed on the filter frame 8. The filter frame 8 is slidably connected to the dust collector 6.
[0025] A ventilation fan box 9 is installed at the rear end of the dust collection box 6, and a ventilation fan 13 is installed inside the ventilation fan box 9.
[0026] The filter frame 8 is located in the slots 12 provided at both the upper and lower ends of the dust collection box 6.
[0027] A handle 11 is installed at the center of the right end of the filter frame 8.
[0028] The dust removal screen 10 is located behind the connection between the dust removal box 6 and the transmission pipes A5 and B7.
[0029] Both the first ventilation window 3 and the second ventilation window 4 are inclined structures with the left side higher than the right side.
[0030] The base frame 2 has an L-shaped structure.
[0031] Working principle: A ventilation fan is installed at the center of the rear end of the cabinet. The ventilation fan extracts heat from the two separate mounting cavities, achieving the effect of heat dissipation and ventilation. At the same time, the heat in the two separate mounting cavities does not flow between each other, thus achieving a good ventilation effect.
[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A conveniently ventilated ring main unit, comprising a cabinet (1), a base frame (2), a transmission pipe A (5), a dust collection box (6), a transmission pipe B (7), a filter frame (8), and a ventilation fan box (9), characterized in that: The cabinet (1) has a base frame (2) installed on both sides of the bottom end. The cabinet (1) has an installation cavity at both the top and bottom ends. The cabinet (1) has a first ventilation window (3) installed on both sides of the top end and a second ventilation window (4) installed on both sides of the bottom end. A dust collector (6) is installed at the center of the rear end of the cabinet (1). The upper end of the dust collector (6) is connected to the installation cavity through a transmission pipe A (5), and the lower end of the dust collector (6) is connected to the installation cavity through a transmission pipe B (7). A filter frame (8) is embedded inside the dust collector (6), and a dust removal net (10) is installed on the filter frame (8). The filter frame (8) is slidably connected to the dust collector (6). A ventilation fan box (9) is installed at the rear end of the dust collection box (6), and a ventilation fan (13) is installed inside the ventilation fan box (9).
2. The conveniently ventilated ring main unit according to claim 1, characterized in that: The filter frame (8) is located in the slots (12) provided at the upper and lower ends of the dust collection box (6).
3. The conveniently ventilated ring main unit according to claim 1, characterized in that: A handle (11) is installed at the center of the right end of the filter frame (8).
4. A conveniently ventilated ring main unit according to claim 1, characterized in that: The dust removal net (10) is located behind the connection between the dust removal box (6) and the transmission pipe A (5) and transmission pipe B (7).
5. A conveniently ventilated ring main unit according to claim 1, characterized in that: Both the first ventilation window (3) and the second ventilation window (4) are inclined structures with the left side higher than the right side.
6. A conveniently ventilated ring main unit according to claim 1, characterized in that: The base frame (2) has an L-shaped structure.