Ring main unit with dehumidification function
By designing an automatically replaced upper and lower stacked dehumidification box structure and a prompt light reminder mechanism in the ring network cabinet, the problem of not being able to replace the dehumidification box in time after it is full is solved, ensuring the dryness inside the ring network cabinet and improving the reliability of equipment operation.
Patent Information
- Application Number
- CN202422478826.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The dehumidification boxes in the existing ring network cabinets cannot be replaced in time after they are full, causing humid gas to enter the cabinet and affect equipment operation.
A stacked dehumidification box structure is designed to automatically replace a full dehumidification box by utilizing weight changes. Automatic switching is achieved through a reset spring and a limit plate, and a warning light is used to remind maintenance personnel to replace the desiccant.
The automatic replacement of the dehumidification box and the timely replacement of the desiccant are realized to ensure the dryness inside the ring network cabinet, prevent the entry of humid gas, and improve the reliability of equipment operation.
Smart Images

Figure CN223390963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ring network cabinets, in particular to a ring network cabinet with a dehumidification function. Background Art
[0002] A ring main unit (RMU) mainly refers to a group of electrical transmission and distribution equipment installed in a metal or non-metallic insulating cabinet or made into an assembled interval ring main unit. Due to the problem of ventilation and heat dissipation, a heat dissipation trough needs to be opened to dissipate heat from the inside of the RMU. This will cause humid gas to enter the RMU from the heat dissipation trough in humid weather. Therefore, a dehumidification box will be installed at the heat dissipation trough of the RMU to absorb water vapor.
[0003] The dehumidification boxes in existing ring network cabinets are all directly installed inside the ring network cabinet. When the desiccant bag inside the dehumidification box is full, the dehumidification box will become ineffective. The staff cannot discover it in time and replace the desiccant inside the dehumidification box, which will cause humid gas to enter the ring network cabinet. Utility Model Content
[0004] The purpose of the present invention is to provide a ring main unit with a dehumidification function to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ring network cabinet with a dehumidification function, comprising a ring network cabinet main body, two slide rails are provided on both sides of the interior of the ring network cabinet main body, two dehumidification boxes are movably connected between the two slide rails, a push rod is slidably connected to the slide rail, one end of the push rod is fixedly connected to a limit plate, a reset spring is sleeved on the outer side of the push rod, the two ends of the reset spring are respectively fixed to the slide rail and the limit plate, and the push rod is against the bottom of the dehumidification box.
[0006] As a preferred solution of the present invention, the two dehumidification boxes between the two slide rails are stacked up and down, and the upper and lower surfaces of the dehumidification boxes are fixedly connected with protrusions.
[0007] As a preferred solution of the present invention, a ventilation filter is fixedly connected to the dehumidification box, and a ventilation slot is fixedly connected to the ring network cabinet body.
[0008] As a preferred solution of the present invention, a support plate is fixedly connected to the inner wall of the ring network cabinet body and located below the dehumidification box, a switch is provided on the support plate, an installation box is fixedly connected to the ring network cabinet body, and a warning light is installed inside the installation box.
[0009] As a preferred solution of the present invention, the switch and the warning light are electrically connected.
[0010] As a preferred solution of the present invention, both ends of the upper surface of the dehumidification box are detachably connected with sealing plates.
[0011] Compared with the prior art, the beneficial effect of the present invention is as follows: the present invention arranges two upper and lower dehumidification boxes on the inner wall of the ring network cabinet body. When the lower dehumidification box is full, its weight will increase, so the lower dehumidification box will push the push rods to both sides, and then the lower dehumidification box will fall, and the upper dehumidification box will fall on the push rods and match the ventilation slots to continue the dehumidification work. A single replacement can be automatically performed, and after the lower dehumidification box falls, the switch will be activated to make the prompt light work to remind the staff to disassemble the dehumidification box and replace the desiccant bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional diagram of the utility model;
[0013] Figure 2 This is a schematic diagram of the internal structure of the ring main unit of the utility model;
[0014] Figure 3 This is a schematic diagram of the support rod structure of the present utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the dehumidification box of the present utility model.
[0016] In the figure: 1. Ring network cabinet body; 2. Ventilation slot; 3. Slide rail; 4. Dehumidification box; 5. Ventilation filter; 6. Retaining rod; 7. Reset spring; 8. Limit plate; 9. Sealing plate; 10. Bump; 11. Support plate; 12. Switch; 13. Installation box; 14. Warning light. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] See also Figures 1 to 4The utility model provides a technical solution: a ring network cabinet with a dehumidification function, comprising a ring network cabinet body 1, two slide rails 3 are provided on both sides of the interior of the ring network cabinet body 1, the slide rails 3 are of a right-angle structure, and two dehumidification boxes 4 are movably connected between the two slide rails 3. The interior of the dehumidification box 4 will be filled with a desiccant bag. The dehumidification box 4 fits into the interior of the ring network cabinet body 1 under the restriction of the slide rails 3, and a push rod 6 is slidably connected to the slide rail 3. The top of the push rod 6 is close to the end of the dehumidification box 4 and is inclined. One end of the push rod 6 is fixedly connected to a limiting plate 8, and a reset spring 7 is sleeved on the outer side of the push rod 6. The limit plate 8 can limit the reset spring 7. The two ends of the reset spring 7 are respectively fixed to the slide rail 3 and the limit plate 8, and the push rod 6 is against the bottom of the dehumidification box 4. When the desiccant bag inside the dehumidification box 4 below absorbs moisture, it will gradually become heavier. When the total weight exceeds a certain value, the dehumidification box 4 below will press the push rod 6 downward, causing the push rod 6 to slide to the outside of the slide rail 3. When the push rod 6 slides away from the restriction on the dehumidification box 4, the dehumidification box 4 below will fall downward under the guidance of the slide rail 3, and after the top surface of the dehumidification box 4 below slides over the push rod 6, the push rod 6 will be quickly reset under the push of the reset spring 7, supporting the dehumidification box 4 above, so that the dehumidification box 4 above can continue to perform dehumidification work.
[0019] Among them, the two dehumidification boxes 4 between the two slide rails 3 are stacked up and down, and the upper and lower surfaces of the dehumidification boxes 4 are fixedly connected with protrusions 10. The docking of the two protrusions 10 will leave a gap between the two dehumidification boxes 4, which can facilitate the rapid reset of the push rod 6 under the push of the reset spring 7.
[0020] Among them, the dehumidification box 4 is fixedly connected to a ventilation filter 5, and the ring network cabinet body 1 is fixedly connected to a ventilation slot 2. Humid air will enter the interior of the dehumidification box 4 through the ventilation slot 2 and the ventilation filter 5.
[0021] Among them, a support plate 11 is fixedly connected to the inner wall of the ring network cabinet body 1 and located below the dehumidification box 4. The support plate 11 is an L-shaped structure. A switch 12 is provided on the support plate 11. An installation box 13 is fixedly connected to the ring network cabinet body 1. A prompt light 14 is installed inside the installation box 13. The switch 12 and the prompt light 14 are electrically connected. The sealing plates 9 are detachably connected at both ends of the upper surface of the dehumidification box 4. When the dehumidification box 4 below falls on the support plate 11, the start switch 12 will be pressed by the protrusion 10, causing the prompt light 14 to flash, reminding the staff to replace the used dehumidification box 4 and replenish the new dehumidification box 4. After taking out the used dehumidification box 4, the desiccant bag inside the dehumidification box 4 can be replaced by removing the sealing plate 9.
[0022] Specifically, when the desiccant bag inside the dehumidification box 4 below absorbs moisture, it will gradually become heavier. When the reset spring 7 pushes the push rod 6, it can support the total weight of the two dehumidification boxes 4 and the unused desiccant bags. When the total weight of the desiccant bags after absorbing moisture exceeds a certain value, the dehumidification box 4 below will press the push rod 6 downward, causing the push rod 6 to slide to the outside of the slide rail 3. When the push rod 6 slides away from the restriction on the dehumidification box 4, the dehumidification box 4 below will fall downward under the guidance of the slide rail 3, and the top surface of the dehumidification box 4 below will slide over the push rod 6. There is a gap formed by two protrusions 10. The push rod 6 will quickly reset under the push of the reset spring 7, insert into the gap, and support the upper dehumidification box 4, so that the upper dehumidification box 4 can continue to dehumidify. The lower dehumidification box 4 will fall on the support plate 11, and the protrusion 10 will press the start switch 12 to make the prompt light 14 flash, reminding the staff to replace the used dehumidification box 4 and replenish the new dehumidification box 4. After taking out the used dehumidification box 4, the desiccant bag inside the dehumidification box 4 can be replaced by removing the sealing plate 9.
[0023] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0024] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.
[0025] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.
[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A ring main unit with a dehumidification function, comprising a ring main unit body (1), characterized in that: Two slide rails (3) are provided on both sides of the interior of the ring network cabinet body (1), and two dehumidification boxes (4) are movably connected between the two slide rails (3). A push rod (6) is slidably connected to the slide rail (3), and one end of the push rod (6) is fixedly connected to the limit plate (8). A reset spring (7) is sleeved on the outer side of the push rod (6), and the two ends of the reset spring (7) are respectively fixed to the slide rail (3) and the limit plate (8), and the push rod (6) is against the bottom of the dehumidification box (4).
2. The ring main unit with dehumidification function according to claim 1, characterized in that: The two dehumidification boxes (4) between the two slide rails (3) are stacked up and down, and the upper and lower surfaces of the dehumidification boxes (4) are fixedly connected with protrusions (10).
3. The ring main unit with dehumidification function according to claim 2, characterized in that: The dehumidification box (4) is fixedly connected to a ventilation filter (5), and the ring network cabinet body (1) is fixedly connected to a ventilation slot (2).
4. The ring main unit with dehumidification function according to claim 1, characterized in that: A support plate (11) is fixedly connected to the inner wall of the ring network cabinet body (1) and located below the dehumidification box (4); a switch (12) is provided on the support plate (11); a mounting box (13) is fixedly connected to the ring network cabinet body (1); a warning light (14) is installed inside the mounting box (13).
5. The ring main unit with dehumidification function according to claim 4, characterized in that: The switch (12) and the warning light (14) are electrically connected.
6. The ring main unit with dehumidification function according to claim 2, characterized in that: Sealing plates (9) are detachably connected to both ends of the upper surface of the dehumidification box (4).