Protective shell of partial discharge monitoring device

By using a three-layer composite material and snap-fit ​​mechanism design, the problem of the inability to quickly disassemble and assemble the protective shell of existing partial discharge monitoring devices is solved, achieving efficient maintenance and high protection, and making it suitable for high humidity and high electromagnetic interference environments.

CN224137352UActive Publication Date: 2026-04-17INNER MONGOLIA UHV BRANCH OF STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
INNER MONGOLIA UHV BRANCH OF STATE GRID INNER MONGOLIA EASTERN ELECTRIC POWER CO LTD
Filing Date
2025-06-25
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The protective housing of existing partial discharge monitoring devices cannot be quickly disassembled and assembled, resulting in low maintenance efficiency and an inability to maintain high protection and sealing performance in high humidity and high electromagnetic interference environments.

Method used

It adopts a three-layer composite material design, including a flame-retardant layer, a shielding layer and an insulating layer. Combined with a snap-fit ​​mechanism and a magnetic plate, it can achieve quick assembly and disassembly and high protection. The snap-fit ​​mechanism achieves quick sealing through springs, and the magnetic plate improves the applicability of the equipment.

Benefits of technology

It enables rapid disassembly and assembly of equipment and efficient maintenance, improves the equipment's applicability and service life in harsh environments, and enhances the equipment's protection and sealing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of discharge monitoring equipment, and discloses a protective shell of a partial discharge monitoring device, which comprises a shell body, a cover is rotatably connected outside the shell body, a monitor is installed inside the shell body, a reinforcing assembly is installed inside the shell body, and a buckle mechanism is installed outside the shell body. And the buckle mechanism comprises a transmission assembly and a fixing assembly, the transmission assembly comprises a protection shell, the protection shell is fixedly connected to the outer portion of the shell, and two clamping blocks are slidably connected to the middle of the protection shell. According to the utility model, through the elastic action of the spring, the problem that the interior of equipment cannot be quickly overhauled is solved, the maintenance efficiency of the equipment is improved, and the service life of the equipment is prolonged; in addition, the shell is designed to be made of three layers of composite materials, light weight and high protection performance are combined, the device can be suitable for the severe environment with high humidity and high electromagnetic interference, and the applicability of the device is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of discharge monitoring equipment technology, and in particular to a protective housing for a partial discharge monitoring device. Background Technology

[0002] Partial discharge monitoring devices are intelligent equipment used to monitor partial discharge phenomena in power equipment in real time. They collect discharge signals through multiple sensors and combine this data analysis technology to determine the insulation status of the equipment, providing timely warnings of potential faults and improving the safety and reliability of power system operation. These devices require robust protection during operation; otherwise, they are easily affected, leading to malfunctions.

[0003] The protective enclosure of partial discharge monitoring devices typically has a certain protection level to ensure stable operation of the equipment in harsh environments. The enclosure is usually made of metal with a smooth surface for easy installation and fixation, while also having good heat dissipation and anti-interference performance. These designs ensure that the equipment can accurately monitor partial discharge signals during long-term operation, thereby improving the safety and reliability of the power system.

[0004] While existing protective enclosures can meet the needs of most discharge monitoring devices, they cannot improve maintenance efficiency, extend the life of partial discharge monitoring devices, or reduce failure rates while quickly disassembling and assembling the equipment. Furthermore, it is necessary to combine lightweight design with high protection while maintaining the protective sealing of the equipment. Therefore, a protective enclosure for a partial discharge monitoring device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a protective housing for a partial discharge monitoring device, aiming to improve the problem of not being able to quickly disassemble and assemble the equipment while increasing maintenance efficiency and maintaining the protective sealing of the equipment in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A protective housing for a partial discharge monitoring device includes a housing, a cover rotatably connected to the outside of the housing, a monitor installed inside the housing, a reinforcing component installed inside the housing, and a latching mechanism installed outside the housing. The latching mechanism includes a transmission component and a fixing component. The transmission component includes a protective shell, which is fixedly connected to the outside of the housing. Two latching blocks are slidably connected to the middle of the protective shell. A partition is fixedly connected inside the protective shell. A spring is fixedly connected between the two latching blocks and the partition. A crossbar is fixedly connected inside the protective shell, and the two latching blocks are slidably connected to the outside of the crossbar.

[0008] As a further description of the above technical solution:

[0009] The fixing component includes an insert plate, which is fixedly connected to the outside of the cover. A slot is provided in the middle of the insert plate, and the locking block engages with the slot.

[0010] As a further description of the above technical solution:

[0011] The reinforcing component includes a flame-retardant layer, which is a styrene copolymer alloy.

[0012] As a further description of the above technical solution:

[0013] The reinforcing component includes a shielding layer, which is a galvanized steel sheet, and the shielding layer is disposed inside the flame-retardant layer.

[0014] As a further description of the above technical solution:

[0015] The reinforcing component includes an insulating layer, which is room temperature vulcanizing silicone rubber, and the insulating layer is disposed inside the shielding layer.

[0016] As a further description of the above technical solution:

[0017] A fan is installed on one side of the inner wall of the housing, and a heat-conducting plate is fixedly connected to the other side of the inner wall of the housing. Heat dissipation fins are fixedly connected to both sides of the heat-conducting plate.

[0018] As a further description of the above technical solution:

[0019] The top of the housing has a cross groove, a cross block is slidably connected to the inside of the cross groove, a base is fixedly connected to the bottom of the cross block, an installation hole is opened in the middle of the base, a screw is installed at the bottom of the housing, the cross block is threadedly connected to the screw, and a magnetic plate is fixedly connected to the bottom of the housing.

[0020] As a further description of the above technical solution:

[0021] The top of the housing has a slot, and the bottom of the cover is fixedly connected to a strip, with the slot and the strip engaging with each other.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the elasticity of the spring allows the locking block to quickly seal the cover and the housing, solving the problem of not being able to quickly inspect the inside of the equipment. At the same time, it also avoids damage to the equipment caused by external forces, thus improving the maintenance efficiency and service life of the equipment.

[0024] 2. In this utility model, by designing the outer shell as a three-layer composite material, a combination of lightweight and high protection is achieved. While ensuring operational performance, it can be applied to harsh environments with high humidity and high electromagnetic interference, greatly improving the applicability of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the protective shell of a partial discharge monitoring device proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the magnetic suction plate of the protective shell of a partial discharge monitoring device proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the structure of the monitor in the protective shell of a partial discharge monitoring device proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the snap-fit ​​mechanism of the protective shell of a partial discharge monitoring device proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the composite component of the protective shell of a partial discharge monitoring device proposed in this utility model;

[0030] Figure 6 This is a schematic diagram of the base of the protective shell of a partial discharge monitoring device proposed in this utility model.

[0031] Legend:

[0032] 1. Housing; 2. Cover; 3. Base; 4. Mounting hole; 5. Heat dissipation fins; 6. Magnetic plate; 7. Monitor; 8. Insert; 9. Slot; 10. Fan; 11. Protective shell; 12. Insert plate; 13. Card slot; 14. Crossbar; 15. Spring; 16. Partition; 17. Locking block; 18. Heat-conducting plate; 19. Flame-retardant layer; 20. Shielding layer; 21. Insulating layer; 22. Phillips head block; 23. Phillips head slot; 24. Screw. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1-4This utility model provides an embodiment of a protective housing for a partial discharge monitoring device, comprising a housing 1, a cover 2 rotatably connected to the outside of the housing 1 to seal the housing 1 and prevent interference from the external environment, a monitor 7 installed inside the housing 1, and a reinforcing component installed inside the housing 1 to further enhance the protection of the housing 1, and a snap-fit ​​mechanism installed on the outside of the housing 1 to facilitate maintenance by personnel; the snap-fit ​​mechanism includes a transmission component and a fixing component, the transmission component including a protective shell 11, the protective shell 11 being fixedly connected to the outside of the housing 1 to protect the internal parts from damage, and two locking blocks 17 slidably connected in the middle of the protective shell 11 for securing the device. The protective shell 11 has a partition 16 fixedly connected inside, which limits the spring 15. Two locking blocks 17 are fixedly connected to the partition 16, and the spring 15 is fixedly connected between them. Through the elastic action of the spring 15, the locking blocks 17 can quickly return to the center. The protective shell 11 has a crossbar 14 fixedly connected inside, and the two locking blocks 17 are slidably connected to the outside of the crossbar 14, allowing the locking blocks 17 to slide more smoothly. The fixing component includes an insert plate 12, which is fixedly connected to the outside of the cover 2. The insert plate 12 has a slot 13 in the middle, and the locking blocks 17 are engaged with the slot 13. By inserting the locking blocks 17 into the slot 13, the cover 2 and the shell 1 can be tightly connected to prevent external interference from causing the equipment to malfunction.

[0035] Reference Figure 1 and Figure 5 The reinforcing components include a flame-retardant layer 19, which is a styrene copolymer alloy with high mechanical strength and weather resistance, suitable for use in various harsh environments; it also has good processing performance, facilitating the manufacture of complex-shaped shell structures; the reinforcing components include a shielding layer 20, which is a galvanized steel plate, effectively preventing external electromagnetic interference from entering the device, and also effectively shielding electromagnetic signals generated inside the device to avoid interference with external equipment. The shielding layer 20 is located inside the flame-retardant layer 19; the reinforcing components include an insulation layer 21, which is a room temperature vulcanizing silicone rubber, ensuring the safe operation of the device under high pressure, and also possessing good temperature resistance and aging resistance to meet the needs of long-term operation. The insulation layer 21 is located inside the shielding layer 20.

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6A fan 10 is installed on one side of the inner wall of the housing 1 to dissipate heat from the monitor 7. A heat-conducting plate 18 is fixedly connected to the other side of the inner wall of the housing 1. Heat dissipation fins 5 are fixedly connected to both sides of the heat-conducting plate 18. The heat dissipation fins 5 near the inner side of the housing 1 absorb the internal heat and transfer it to the heat-conducting plate 18, which then transfers the heat to the heat dissipation fins 5 on the other side for heat dissipation. A cross groove 23 is provided on the top of the housing 1. A cross block 22 is slidably connected to the inside of the cross groove 23. A base 3 is fixedly connected to the bottom of the cross block 22. The base 3 can be removed at any time by sliding the cross block 22 in the cross groove 23. The base 3 has a mounting hole 4 in the middle, which facilitates the installation of the equipment by the staff. The bottom of the housing 1 is equipped with screws 24, and the cross block 22 is threadedly connected to the screws 24. The screws 24 make the cross block 22 firmly fixed after sliding into the cross groove 23. The bottom of the housing 1 is fixedly connected with a magnetic plate 6. When the base 3 is not in use, the magnetic plate 6 can be used to hold the metal cabinet door, which greatly improves the applicability of the equipment. The top of the housing 1 has a slot 9, and the bottom of the cover 2 is fixedly connected with a strip 8. The slot 9 and the strip 8 are interlocked. By closing the cover 2 and inserting the strip 8 into the slot 9, the housing 1 can be more sealed.

[0037] Working principle: First, when the monitoring device needs to be repaired, the extension of the outer part of the locking block 17 can be pressed towards the center. At this time, the locking block 17 will press the spring 15 against the partition plate 16, and the locking block 17 will slide out from the slot 13 on the insert plate 12. Then the cover 2 can be opened to inspect the inside of the equipment. After the inspection is completed, the cover 2 is closed again, and then the hand that pressed the locking block 17 is released. Due to the elasticity of the spring 15, the locking block 17 will immediately return to its original position and insert into the slot 13, sealing the equipment tightly. The waterproof buckle makes the equipment less prone to damage and improves maintenance efficiency.

[0038] Secondly, the outer shell is made of composite materials. The flame-retardant layer 19 is made of styrene copolymer alloy, which has good flame-retardant properties and can effectively prevent damage to the internal structure from external flames or high-temperature environments. The shielding layer 20 is made of galvanized steel sheet, which performs well in terms of rust prevention and mechanical strength, and is suitable for partial discharge monitoring devices that need to be used outdoors for a long time or in humid environments. The insulation layer 21 is made of room temperature vulcanized silicone rubber, which has excellent electrical insulation properties and can effectively prevent short circuits or leakage between the metal shielding layer 20 and the internal circuit.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective enclosure for a partial discharge monitoring device comprising a housing (1), characterised in that: The housing (1) is rotatably connected to a cover (2), a monitor (7) is installed inside the housing (1), a reinforcing component is installed inside the housing (1), and a buckling mechanism is installed outside the housing (1). The buckling mechanism includes a transmission component and a fixing component. The transmission component includes a protective shell (11), which is fixedly connected to the outside of the housing (1). Two locking blocks (17) are slidably connected in the middle of the protective shell (11). A partition (16) is fixedly connected inside the protective shell (11). A spring (15) is provided between the two locking blocks (17) and the partition (16). A crossbar (14) is fixedly connected inside the protective shell (11). The two locking blocks (17) are slidably connected to the outside of the crossbar (14).

2. A protective enclosure for a partial discharge monitoring device according to claim 1, characterised in that: The fixing component includes a plug plate (12), which is fixedly connected to the outside of the cover (2). A slot (13) is provided in the middle of the plug plate (12), and the locking block (17) is engaged with the slot (13).

3. A protective enclosure for a partial discharge monitoring device according to claim 1, wherein: The reinforcing component includes a flame-retardant layer (19), which is a styrene copolymer alloy.

4. A protective enclosure for a partial discharge monitoring device according to claim 3, characterised in that: The reinforcing component includes a shielding layer (20), which is a galvanized steel plate and is disposed inside the flame-retardant layer (19).

5. A protective enclosure for a partial discharge monitoring device according to claim 4, characterised in that: The reinforcing component includes an insulating layer (21), which is room temperature vulcanized silicone rubber, and the insulating layer (21) is disposed inside the shielding layer (20).

6. A protective enclosure for a partial discharge monitoring device according to claim 1, wherein: A fan (10) is installed on one side of the inner wall of the housing (1), and a heat-conducting plate (18) is fixedly connected to the other side of the inner wall of the housing (1). Heat dissipation fins (5) are fixedly connected to both sides of the heat-conducting plate (18).

7. A protective enclosure for a partial discharge monitoring device according to claim 1, wherein: The top of the housing (1) is provided with a cross groove (23), and a cross block (22) is slidably connected to the side of the cross groove (23). A base (3) is fixedly connected to the bottom of the cross block (22). An installation hole (4) is provided in the middle of the base (3). A screw (24) is installed at the bottom of the housing (1). The cross block (22) is threadedly connected to the screw (24). A magnetic suction plate (6) is fixedly connected to the bottom of the housing (1).

8. A protective enclosure for a partial discharge monitoring device according to claim 7, characterised in that: The top of the housing (1) has a slot (9), and the bottom of the cover (2) is fixedly connected to a strip (8). The slot (9) and the strip (8) are engaged with each other.