Ripple monitoring device for direct-current power supply

Abstract

The utility model discloses a DC power supply ripple monitoring device, which comprises an on-line insulation monitor, a current sensor and a protective shell, the on-line insulation monitor is arranged in the protective shell, the current sensor is arranged on the top wall of the protective shell, the protective shell is provided with a lead supporting assembly, the lead supporting assembly comprises a clamping plate and an elastic telescopic piece, and the clamping plate is arranged on the top wall of the protective shell. A through hole is formed in the top wall of the protective shell, the elastic telescopic pieces are arranged on the through hole, the multiple sets of elastic telescopic pieces are arranged, and the clamping plates are arranged on the elastic telescopic pieces and correspond to the clamping plates. The utility model belongs to the technical field of DC power supply ripple monitoring devices, and specifically relates to a DC power supply ripple monitoring device.

Description

Technical Field

[0001] The utility model belongs to the technical field of direct current power supply ripple monitoring devices, in particular to a direct current power supply ripple monitoring device. Background Art

[0002] The DC system is an important component of power plants and substations. The safety and reliability of the DC system affects the safe operation of power plants and substations, and is related to the safe production of the entire power grid. In order to prevent the complete shutdown of substations and power outages for important customers, it is necessary to increase the measurement and early warning functions of AC-to-DC faults.

[0003] Patent CN205643658U discloses a ripple measurement device. When the current sensor is connected to an online insulation monitor through a wire during use, the wire lacks a supporting structure and is easily damaged after long-term use. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a DC power supply ripple monitoring device.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a DC power supply ripple monitoring device, including an online insulation monitor, a current sensor and a protective shell, the line insulation monitor is arranged in the protective shell, the current sensor is arranged on the top wall of the protective shell, the protective shell is provided with a wire support assembly, the wire support assembly includes a splint and an elastic telescopic part, the top wall of the protective shell is provided with a through hole, the elastic telescopic part is arranged on the through hole and is provided in multiple groups, the splint is arranged on the elastic telescopic part and is arranged corresponding to the splint.

[0006] Preferably, the through holes are provided in a plurality of groups, and the wire supporting components are arranged corresponding to the through holes.

[0007] Preferably, the elastic telescopic member includes a slide post and a spring, the inner side wall of the through hole is provided with a slide groove, the slide post is slidably arranged on the slide groove, and the spring is arranged in the slide groove and between the side wall of the slide groove and the end of the slide post.

[0008] Preferably, it also includes a heat dissipation component, which includes a heat dissipation port, a bracket and a heat dissipation fan. A cap is threadedly connected to the heat dissipation port, a filter is provided on the cap, the bracket is arranged on the inner wall of the heat dissipation port, and the heat dissipation fan is arranged on the bracket.

[0009] Preferably, the side wall of the protective shell is provided with heat dissipation holes, and a plurality of groups of heat dissipation holes are provided.

[0010] Preferably, a side wall of the protective shell is provided with a hinged seat, and a carrying handle is rotatably provided on the hinged seat.

[0011] Preferably, the side wall of the protective shell is provided with an opening, a display screen is provided on the opening, and the display screen is electrically connected to the wire insulation monitor.

[0012] Preferably, the top wall of the protective shell is provided with an insulating protective shell, and an integrated circuit protection structure is provided in the insulating protective shell, which structure has been disclosed in CN205643658U.

[0013] The utility model adopts the above structure to achieve the following beneficial effects: the wire of the online insulation monitor passes through the through hole and is connected to the current sensor. At the same time, when the wire is passed into the through hole, the wire will squeeze the clamping plate, causing the slide column to slide in the slide groove and squeeze the spring. The elastic force of the spring drives the clamping plate to clamp and support the wire to protect the wire.

[0014] The cooling fan can dissipate heat from the online insulation monitor in the protective shell through the cooling holes and openings, while the filter screen is used to prevent dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 A top view of an embodiment of the utility model;

[0017] Figure 3 A cross-sectional view of an embodiment of the utility model;

[0018] Figure 4 The three-dimensional embodiment of the utility model Figure 1 ;

[0019] Figure 5 The three-dimensional embodiment of the utility model Figure 2 .

[0020] Among them, 1. Online insulation monitor, 2. Current sensor, 3. Protective shell, 4. Wire support assembly, 5. Through hole, 6. Slide column, 7. Spring, 8. Slide groove, 9. Heat dissipation assembly, 10. Heat dissipation port, 11. Bracket, 12. Cooling fan, 13. Cap, 14. Filter, 15. Heat dissipation hole, 16. Articulated seat, 17. Carrying handle, 18. Opening, 19. Display screen, 20. Insulation protective shell. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-5 As shown, a DC power supply ripple monitoring device proposed by the utility model includes an online insulation monitor 1, a current sensor 2 and a protective shell 3, the line insulation monitor is arranged in the protective shell 3, the current sensor 2 is arranged on the top wall of the protective shell 3, the protective shell 3 is provided with a wire support assembly 4, the wire support assembly 4 includes a clamping plate and an elastic telescopic member, the top wall of the protective shell 3 is provided with a through hole 5, the elastic telescopic member is arranged on the through hole 5 and is provided with a plurality of groups, the clamping plate is arranged on the elastic telescopic member and is arranged corresponding to the clamping plate, the wire of the online insulation monitor 1 passes through the through hole 5 and is connected to the current sensor 2, and at the same time, the elastic telescopic member drives the clamping plate to fix and support the wire to protect the wire.

[0024] The through holes 5 are provided in a plurality of groups, and the wire supporting components 4 are arranged corresponding to the through holes 5 .

[0025] The elastic telescopic member includes a slide post 6 and a spring 7. The inner side wall of the through hole 5 is provided with a slide groove 8. The slide post 6 is slidably arranged on the slide groove 8. The spring 7 is arranged in the slide groove 8 and between the side wall of the slide groove 8 and the end of the slide post 6. When the wire is passed into the through hole 5, the wire will squeeze the clamping plate, causing the slide post 6 to slide in the slide groove 8 and squeeze the spring 7. The elastic force of the spring 7 drives the clamping plate to clamp and support the wire.

[0026] It also includes a heat dissipation component 9, which includes a heat dissipation port 10, a bracket 11 and a heat dissipation fan 12. A cap 13 is threadedly connected to the heat dissipation port 10, and a filter screen 14 is provided on the cap 13. The bracket 11 is arranged on the inner wall of the heat dissipation port 10, and the heat dissipation fan 12 is arranged on the bracket 11. When the heat dissipation fan 12 works, the online insulation monitor 1 in the protective shell 3 can be cooled.

[0027] The side wall of the protective shell 3 is provided with a plurality of heat dissipation holes 15 .

[0028] A hinge seat 16 is disposed on the side wall of the protective shell 3 , and a carrying handle 17 is rotatably disposed on the hinge seat 16 .

[0029] The side wall of the protective shell 3 is provided with an opening 18 , and a display screen 19 is provided on the opening 18 . The display screen 19 is electrically connected to the online insulation monitor 1 .

[0030] The top wall of the protective shell 3 is provided with an insulating protective shell 20, and the insulating protective shell 20 is provided with an integrated circuit protection structure, which has been disclosed in CN205643658U

[0031] During specific use, the wire of the online insulation monitor 1 passes through the through hole 5 and is connected to the current sensor 2. At the same time, when the wire is passed into the through hole 5, the wire will squeeze the clamping plate, causing the slide column 6 to slide in the slide groove 8 and squeeze the spring 7. The elastic force of the spring 7 drives the clamping plate to clamp and support the wire to protect the wire.

[0032] When the cooling fan 12 works, the online insulation monitor 1 in the protective shell 3 can dissipate heat through the cooling holes 15 and the opening 18 , while dust is prevented through the filter 14 .

[0033] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A DC power supply ripple monitoring device, characterized in that: It includes an online insulation monitor, a current sensor and a protective shell, wherein the wire insulation monitor is arranged in the protective shell, the current sensor is arranged on the top wall of the protective shell, the protective shell is provided with a wire support assembly, the wire support assembly includes a clamping plate and an elastic telescopic member, the top wall of the protective shell is provided with a through hole, the elastic telescopic member is arranged on the through hole and is provided in multiple groups, the clamping plate is arranged on the elastic telescopic member and is arranged corresponding to the clamping plate; it also includes a heat dissipation assembly, the heat dissipation assembly includes a heat dissipation port, a bracket and a heat dissipation fan, a cap is threadedly connected to the heat dissipation port, a filter is provided on the cap, the bracket is arranged on the inner side wall of the heat dissipation port, the heat dissipation fan is arranged on the bracket, and the side wall of the protective shell is provided with heat dissipation holes and is provided in multiple groups.

2. A DC power supply ripple monitoring device according to claim 1, characterized in that: The through holes are provided in a plurality of groups, and the wire supporting components are arranged corresponding to the through holes.

3. A DC power supply ripple monitoring device according to claim 1, characterized in that: The elastic telescopic member comprises a slide post and a spring. The inner side wall of the through hole is provided with a slide groove. The slide post is slidably arranged on the slide groove. The spring is arranged in the slide groove and between the side wall of the slide groove and the end of the slide post.

4. A DC power supply ripple monitoring device according to claim 1, characterized in that: A hinged seat is arranged on the side wall of the protective shell, and a carrying handle is rotatably arranged on the hinged seat.

5. A DC power supply ripple monitoring device according to claim 1, characterized in that: The side wall of the protective shell is provided with an opening, the opening is provided with a display screen, and the display screen is electrically connected to the wire insulation monitor.

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