25kA arcing ring main unit door with temperature measurement window

By designing a three-layer protective structure and a rotating door lock on the door of the arc-fired ring main unit, the fragility of the infrared temperature measurement window in the arc-fired environment was solved, enabling safe and reliable online monitoring of cable joint temperature.

CN223567146UActive Publication Date: 2025-11-18BEIJING HEROSAIL POWER SCI & TECH
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Patent Information

Application Number
CN202423088514.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-14
Publication Date
2025-11-18
Estimated Expiration
2034-12-14

AI Technical Summary

Technical Problem

Existing infrared temperature measurement windows are fragile in 25kA arc faults and cannot effectively resist impact and erosion, thus failing to meet the requirements for online monitoring of cable joint temperature.

Method used

Design a 25kA arc-resistant ring main unit cabinet door with a temperature measurement window. It adopts an arc-resistant inner lining cover, a transparent arc-resistant insulation board and a temperature measurement protection board to form a three-layer protective layer. Combined with a rotating door lock, it realizes the protection and operation of the infrared temperature measurement window.

Benefits of technology

It effectively protects the infrared temperature measurement window in an arcing environment, ensuring that the temperature measurement function is not affected and improving the safety and reliability of the structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223567146U_ABST
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Abstract

The utility model provides a 25kA arcing ring main unit cabinet door with a temperature measurement window, which relates to the technical field of electrical equipment and comprises a cabinet door main body, an arcing lining plate is arranged on the inner side wall of the cabinet door main body, an arcing lining cover plate is mounted on the arcing lining plate, a transparent arcing-proof insulating plate is arranged on the inner side wall of the arcing lining cover plate, and a temperature measurement window is arranged on the transparent arcing-proof insulating plate. One end of the infrared temperature measurement window penetrates out of the arcing lining plate, a window cover is arranged on the outer side of the infrared temperature measurement window, a temperature measurement protection plate is arranged between the arcing lining cover plate and the arcing lining plate, the position of the temperature measurement protection plate is matched with that of the infrared temperature measurement window, and the temperature measurement protection plate is connected with the rotary door lock; according to the utility model, the arcing lining cover plate, the transparent arcing-proof insulating plate and the temperature measurement protection plate can be utilized to form a three-layer protection layer to play a role in arcing protection, and the infrared temperature measurement window can be used for measuring temperature and can also be used for protecting the window through the temperature measurement protection plate to prevent internal arcing ablation and impact.
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Description

TECHNICAL FIELD

[0001] The utility model relates to power equipment technical field especially relates to a 25kA arc ring network cabinet door with temperature measurement window. BACKGROUND

[0002] In recent years, the southern power grid company requires adding infrared temperature measurement window on the 10kV medium voltage ring network cabinet supplied to the southern grid, which is used for online monitoring the temperature of the ring network cabinet cable joint, and early understanding of possible failure at the cable interface.

[0003] The infrared temperature measurement window body is composed of transparent 3.0mm barium fluoride crystal, which is easy to break and cannot resist the impact caused by 25kA arc failure. Although the infrared temperature measurement window has an aluminum alloy cover outside, the anti-arc ability is poor, and the single-layer sheet metal structure of the cable door itself cannot meet the impact and ablation resistance requirements of arc. Therefore, the utility model provides a 25kA arc ring network cabinet door with temperature measurement window to solve the deficiencies in the prior art. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model aims to provide a 25kA arc ring network cabinet door with temperature measurement window, which can utilize the arc lining cover plate, transparent anti-arc insulation plate and temperature measurement protection plate to form three layers of protection to play the role of arc protection. The infrared temperature measurement window can not only measure temperature but also protect the window from internal arc ablation and impact through the temperature measurement protection plate.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A 25kA arc ring network cabinet door with temperature measurement window, comprising a cabinet door body, an arc lining plate is arranged on the inner side wall of the cabinet door body, an arc lining cover plate is mounted on the arc lining plate, a transparent anti-arc insulation plate is arranged on the inner side wall of the arc lining cover plate, a window installation opening is arranged on the front upper part of the cabinet door body, an infrared temperature measurement window is detachably arranged in the window installation opening, one end of the infrared temperature measurement window penetrates out of the arc lining plate, a window cover is arranged on the outer side of the infrared temperature measurement window, the window cover is movably connected with the infrared temperature measurement window, a rotary door lock is arranged on the cabinet door body above the infrared temperature measurement window, a temperature measurement protection plate is arranged between the arc lining cover plate and the arc lining plate, the temperature measurement protection plate is matched with the infrared temperature measurement window in position, and the temperature measurement protection plate is connected with the rotary door lock.

[0007] Further improvement lies in that a cover plate is arranged on one side of the arc lining plate, the cover plate presses and fixes the arc lining plate on the inner side wall of the cabinet door body, and one end of the infrared temperature measurement window penetrates out of the arc lining plate and synchronously penetrates out of the cover plate.

[0008] Further improvement lies in that the cover plate is provided with a grounding connecting piece, and the grounding connecting piece is provided with an M grounding stud.

[0009] Further improvement lies in that the arc burning inner lining cover plate is provided with connecting holes at four corners of the inner side wall, and the transparent anti-arc burning insulation plate is provided with connecting bolts at four corners, and the connecting bolts are connected with the connecting holes.

[0010] Further improvement lies in that the infrared temperature measuring window extends out of one side of the front of the cabinet door body, and a rotating shaft is arranged on the end surface of the infrared temperature measuring window extending out of one side of the front of the cabinet door body, and the window cover is connected with the rotating shaft.

[0011] Further improvement lies in that the window mounting opening is internally provided with a fixed screw sleeve, and the outer wall of the infrared temperature measuring window is threadedly connected with the inner wall of the fixed screw sleeve.

[0012] The utility model discloses the beneficial effects are: the utility model discloses through installing arc burning inner lining cover plate, transparent anti-arc burning insulation plate and temperature measuring protection board on the cabinet door body, can utilize arc burning inner lining cover plate, transparent anti-arc burning insulation plate and temperature measuring protection board constitute three -layer protection layer and play the role of arc burning protection, through setting up the revolving door lock on the cabinet door body above infrared temperature measuring window, make temperature measuring protection board and revolving door lock connect can realize through rotating revolving door lock control temperature measuring protection board and expose infrared temperature measuring window to use, further make infrared temperature measuring window can measure temperature and can prevent the inside arc burning ablation and impact through temperature measuring protection board protection window, improve the structure use safety of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structure front view schematic drawing of the utility model;

[0014] Figure 2 It is the window cover installation structure side view schematic drawing of the utility model;

[0015] Figure 3 It is the structure rear view schematic drawing of the utility model;

[0016] Figure 4 It is the structure side view partial schematic drawing of the utility model.

[0017] Wherein: 1, cabinet door body;2, arc burning inner lining plate;3, arc burning inner lining cover plate;4, transparent anti-arc burning insulation plate;5, infrared temperature measuring window;6, window cover;7, revolving door lock;8, temperature measuring protection board;9, cover plate;10, grounding connecting piece;11, M6 grounding stud;12, connecting bolt;13, rotating shaft;14, fixed screw sleeve. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0019] According to Figures 1-4 As shown in the figure, the embodiment provides a 25kA arc ring network cabinet door with a temperature measuring window, which comprises a cabinet door body 1, an arc lining plate 2 is arranged on the inner side wall of the cabinet door body 1, an arc lining cover plate 3 is arranged on the arc lining plate 2, a transparent anti-arc insulation plate 4 is arranged on the inner side wall of the arc lining cover plate 3, a window installation opening is arranged on the front upper portion of the cabinet door body 1, an infrared temperature measuring window 5 is detachably arranged in the window installation opening, one end of the infrared temperature measuring window 5 penetrates out of the arc lining plate 2, a window cover 6 is arranged on the outer side of the infrared temperature measuring window 5, the window cover 6 is movably connected with the infrared temperature measuring window 5, a rotary door lock 7 is arranged on the cabinet door body 1 above the infrared temperature measuring window 5, a temperature measuring protection plate 8 is arranged between the arc lining cover plate 3 and the arc lining plate 2, the temperature measuring protection plate 8 is matched with the infrared temperature measuring window 5 in position, and the temperature measuring protection plate 8 is connected with the rotary door lock 7, the rotary door lock 7 is located above, the infrared temperature measuring window 5 is located below, and the temperature measuring protection plate 8 is matched with the infrared temperature measuring window 5 in position, so that when the temperature measuring protection plate 8 is turned and opened by twisting the rotary door lock 7, the temperature measuring protection plate 8 will be automatically closed under the action of gravity when the rotary door lock 7 is loosened, and the problem of forgetting to close is avoided.

[0020] When the 25kA arc ring network cabinet door with a temperature measuring window measures temperature, the window cover 6 is first rotated and opened to expose the infrared temperature measuring window 5, then the rotary door lock 7 is twisted to rotate, and then the temperature measuring protection plate 8 connected with the rotary door lock 7 is turned and opened, so that infrared temperature measuring operation is realized at the infrared temperature measuring window 5, and the transparent anti-arc insulation 4 can burn the infrared temperature measuring window 5 without interfering with the infrared temperature measuring operation.

[0021] One side of the arc lining plate 2 is provided with a cover plate 9, the cover plate 9 presses and fixes the arc lining plate 2 on the inner side wall of the cabinet door body 1, and one end of the infrared temperature measuring window 5 penetrates out of the arc lining plate 2 and synchronously penetrates out of the cover plate 9. The installation stability of the arc lining plate 2 can be improved by arranging the cover plate 9, and the deformation of the arc lining plate 2 is prevented.

[0022] One side of the cover plate 9 is provided with a grounding connecting piece 10, and an M6 grounding stud 11 is arranged on the grounding connecting piece 10. The 25kA arc ring network cabinet door with a temperature measuring window can meet the requirements of infrared temperature measurement and grounding continuity through the above arrangement.

[0023] The inside wall of the arc burning lining cover plate 3 is provided with connecting holes at four corners, the transparent anti-arc insulation plate 4 is provided with connecting bolts 12 at four corners, and the connecting bolts 12 are connected with the connecting holes. Through the arrangement, the transparent anti-arc insulation plate 4 can be replaced.

[0024] The infrared temperature measurement window 5 extends out of the front side of the cabinet door body 1 at one end, and the infrared temperature measurement window 5 is provided with a rotating shaft 13 on the end surface extending out of the front side of the cabinet door body 1, and the window cover 6 is connected with the rotating shaft 13. The rotating shaft 13 has the advantages of simple operation.

[0025] The inside wall of the infrared temperature measurement window 5 is threadedly connected with the fixed screw sleeve 14. Through the above arrangement, the infrared temperature measurement window 5 can be quickly installed and disassembled.

[0026] The arc burning lining cover plate 3, the transparent anti-arc insulation plate 4 and the temperature measurement protection plate 8 are arranged on the cabinet door body 1, three layers of protection layers are formed by the arc burning lining cover plate 3, the transparent anti-arc insulation plate 4 and the temperature measurement protection plate 8, the temperature measurement protection plate 8 is connected with the rotating door lock 7, the temperature measurement protection plate 8 is opened by rotating the rotating door lock 7 to expose the infrared temperature measurement window 5 for use, and the infrared temperature measurement window 5 can be used for temperature measurement and protected by the temperature measurement protection plate 8 to prevent internal arc ablation and impact, and the structural use safety of the utility model is improved.

[0027] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A 25kA arc-controlled ring main unit door with a temperature measurement window, comprising a door body (1), characterized in that: The inner wall of the cabinet door body (1) is provided with an arc-burning lining plate (2), an arc-burning lining cover plate (3) is installed on the arc-burning lining plate (2), a transparent arc-proof insulating plate (4) is provided on the inner wall of the arc-burning lining cover plate (3), a viewing window installation port is provided on the front of the cabinet door body (1), an infrared temperature measuring window (5) is detachably provided in the viewing window installation port, one end of the infrared temperature measuring window (5) extends through the arc-burning lining plate (2), a viewing window cover (6) is provided on the outside of the infrared temperature measuring window (5), the viewing window cover (6) is movably connected to the infrared temperature measuring window (5), a rotary door lock (7) is provided on the cabinet door body (1) above the infrared temperature measuring window (5), a temperature measuring protective plate (8) is provided between the arc-burning lining cover plate (3) and the arc-burning lining plate (2), the position of the temperature measuring protective plate (8) is adapted to the infrared temperature measuring window (5), and the temperature measuring protective plate (8) is connected to the rotary door lock (7).

2. The cabinet door of a 25kA arc-fired ring main unit with a temperature measuring window according to claim 1, characterized in that: The arc-burning lining plate (2) is provided with a cover plate (9) on one side. The cover plate (9) presses the arc-burning lining plate (2) onto the inner wall of the cabinet door body (1). The infrared temperature measurement window (5) extends through the arc-burning lining plate (2) and then simultaneously extends through the cover plate (9).

3. The cabinet door of a 25kA arc-fired ring main unit with a temperature measuring window according to claim 2, characterized in that: The cover plate (9) is provided with a grounding connection piece (10) on one side, and an M6 grounding stud (11) is provided on the grounding connection piece (10).

4. The cabinet door of a 25kA arc-fired ring main unit with a temperature measuring window according to claim 1, characterized in that: The inner wall of the arc-resistant inner liner (3) is provided with connection holes at the four corners, and the transparent arc-resistant insulating plate (4) is provided with connecting bolts (12) at the four corners, and the connecting bolts (12) are connected to the connection holes.

5. A 25kA arc-fired ring main unit door with a temperature measuring window according to claim 1, characterized in that: One end of the infrared temperature measurement window (5) extends out of the front side of the cabinet door body (1), and a pivot (13) is provided on the end face of the infrared temperature measurement window (5) extending out of the front side of the cabinet door body (1), and the window cover (6) is connected to the pivot (13).

6. The cabinet door of a 25kA arc-fired ring main unit with a temperature measuring window according to claim 1, characterized in that: The window mounting opening is provided with a fixing screw sleeve (14), and the outer wall of the infrared temperature measuring window (5) is threadedly connected to the inner wall of the fixing screw sleeve (14).