Arc extinction cabinet with disconnecting link having insulation structure

Abstract

The utility model provides an arc extinguishing cabinet with a disconnecting link having an insulation structure, which comprises an arc extinguishing cabinet and an insulation protection assembly, the insulation protection assembly is arranged between the upper side of a primary chamber at the lower end of the arc extinguishing cabinet and a bus chamber through a plurality of angle plates, and a disconnecting link body is arranged at the lower side of the bus chamber of the arc extinguishing cabinet. The insulation protection assembly is arranged on the lower side of the knife switch body of the arc extinction cabinet, the insulation protection assembly comprises an insulation plate and wiring pieces, and a plurality of wiring pieces are movably arranged on the upper side of the insulation plate, compared with the prior art, the insulation protection assembly has the following beneficial effects that the insulation protection assembly is arranged on the lower side of the knife switch body of the arc extinction cabinet, and the insulation plate is composed of an insulation flame-retardant layer and a hard plastic plate; the contact with the electrified disconnecting link body can be avoided, the personal safety of a maintainer is improved, the plurality of wiring pieces are installed on the insulating plate, and when wiring needs to be carried out, the sliding plate at a proper position and the corresponding wiring hole are selected according to the wiring position and the diameter of a cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of arc suppression cabinets, and particularly relates to an arc suppression cabinet with an insulating structure on a knife switch. Background Technique

[0002] An arc suppression cabinet is a common device in the power system, used for safely cutting off fault currents and isolating equipment. However, in terms of the lack of an insulating protection structure for the knife switch, there are some drawbacks in existing arc suppression cabinets. First of all, due to the lack of an insulating protection structure for the knife switch, maintenance personnel may cause electric shock accidents during maintenance in the primary room. When the knife switch is in the unopened state, if a person touches the knife switch, the current may directly flow through the human body and cause electric shock. This situation is particularly likely to occur during maintenance and repair. To address these drawbacks, the conventional method is to add an insulating protection structure to the existing arc suppression cabinet, mainly including measures such as installing grounding contacts and insulating covers. By installing grounding contacts, it can ensure that the knife switch is connected to the ground potential when the knife switch is not opened, reducing the risk of electric shock. The insulating cover can isolate the knife switch from the outside world, thereby reducing the possibility of electric shock.

[0003] However, these methods also have some drawbacks. First of all, adding an insulating protection structure will increase the complexity and cost of the arc suppression cabinet. Secondly, during the maintenance and repair process, more operation steps and time are required to ensure the normal operation of the insulating protection structure. Moreover, if the insulating protection structure is not effectively maintained and repaired, it may also lead to its failure, thus unable to achieve the expected safety effect. In summary, there are some drawbacks in existing arc suppression cabinets in terms of the lack of an insulating protection structure for the knife switch. To solve these problems, the conventional method is to add an insulating protection structure, but these methods also have some drawbacks, including increased complexity and cost, as well as the difficulty of maintenance and repair. Therefore, we hope to design an arc suppression cabinet with a new structure to solve this problem. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an arc suppression cabinet with an insulating structure on a knife switch, and solve the problems raised in the above background technique.

[0005] The utility model is realized through the following technical solutions: an arc suppression cabinet with an insulating structure on a knife switch, comprising: an arc suppression cabinet and an insulating protection component. An insulating protection component is installed between the upper side of the primary room at the lower end of the arc suppression cabinet and the busbar chamber through a plurality of angle plates, and a knife switch body is installed on the lower side of the busbar chamber of the arc suppression cabinet;

[0006] The insulating protection component includes an insulating board and a wiring component, and a plurality of wiring components are movably installed on the upper side of the insulating board;

[0007] The insulating board includes an insulating and flame-retardant layer and a hard plastic board. The hard plastic board is wrapped with an insulating and flame-retardant layer on the outside. In actual use, by adding an insulating board between the primary chamber and the bus chamber, when maintenance personnel perform maintenance on the primary chamber, potential hazards generated by the knife switch body can be avoided.

[0008] As a preferred embodiment, a plurality of adjusting through slots two are formed through the upper surface of the insulating board downward. The front side and the rear side of each adjusting through slot two respectively penetrate downward through the insulating body to form adjusting through slots one.

[0009] As a preferred embodiment, the structure of the adjusting through slot two is the same as that of the adjusting through slot one, and the length of the adjusting through slot two is greater than the length of the adjusting through slot one.

[0010] As a preferred embodiment, the wiring member includes a sliding plate, a guide block one, and a guide block two. A guide block one is arranged in the middle of the lower surface of the sliding plate, and a guide block two is respectively arranged on the front side and the rear side of the lower surface of the sliding plate. The setting of the wiring member facilitates wiring between the electrical components in the primary chamber and the electrical components in the bus chamber.

[0011] As a preferred embodiment, the guide block one is slidably installed inside the adjusting through slot two, and the guide block two is slidably installed inside the adjusting through slot one. A screw rod is arranged in the middle of the lower end of each guide block two. The height of the guide block two is the same as the depth of the adjusting through slot one, and a butterfly nut is threadedly connected to the lower side of the screw rod.

[0012] As a preferred embodiment, the insulating and flame-retardant layer is an insulating and flame-retardant rubber, and the structure and material of the insulating board are the same as those of the sliding plate.

[0013] As a preferred embodiment, the width and length of the sliding plate are both greater than the width and length of the adjusting through slot two. A plurality of wiring holes with different apertures are formed through the guide block one downward on the upper surface of the sliding plate.

[0014] After adopting the above technical solution, the beneficial effect of the present utility model is that: by installing an insulating protection component under the knife switch body of the arc suppression cabinet and adopting an insulating board composed of an insulating and flame-retardant layer and a hard plastic board, when maintenance personnel perform maintenance on the arc suppression cabinet, the insulating protection component can isolate the knife switch body outside the primary chamber. After isolating the live knife switch body, when maintenance personnel enter the primary chamber for maintenance, they can avoid contacting the live knife switch body, improving the personal safety of maintenance personnel;

[0015] By installing multiple wiring components on the insulating board, when wiring is required, the skateboard at the appropriate position and the corresponding wiring holes can be selected according to the wiring position and the diameter of the cable. If it is necessary to adjust the position of the cable left and right, the butterfly nut can be loosened to make the skateboard slide relative to the insulating board, and the skateboard can be slid left and right. Since the width and length of the skateboard are both greater than the width and length of the adjustment slot two, when moving the skateboard, the adjustment slot one and the adjustment slot two will not be exposed, and the insulating performance of the insulating board can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 FIG. 1 is a schematic diagram of the overall structure of an arc suppression cabinet with an insulating structure for a knife switch according to the present invention.

[0018] Figure 2 FIG. 2 is a schematic diagram of the insulating protection component structure of an arc suppression cabinet with an insulating structure for a knife switch according to the present invention.

[0019] Figure 3 FIG. 3 is a schematic diagram of the wiring component structure of an arc suppression cabinet with an insulating structure for a knife switch according to the present invention.

[0020] Figure 4 FIG. 4 is a schematic diagram of the insulating board structure of an arc suppression cabinet with an insulating structure for a knife switch according to the present invention.

[0021] In the figure, 100 - arc suppression cabinet, 110 - angle plate, 120 - knife switch body;

[0022] 200 - insulating protection component, 210 - insulating board, 211 - adjustment slot one, 212 - adjustment slot two, 213 - insulating and flame-retardant layer, 214 - hard plastic board, 220 - wiring component, 221 - skateboard, 222 - wiring hole, 223 - guide block one, 224 - guide block two, 225 - screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: an arc-extinguishing cabinet 100 with an insulation structure for a knife switch, comprising: an arc-extinguishing cabinet 100 and an insulation protection assembly 200. The insulation protection assembly 200 is installed between the upper side of the primary chamber and the busbar chamber at the lower end of the arc-extinguishing cabinet 100 through a plurality of angle plates 110. The knife switch body 120 is installed on the lower side of the busbar chamber of the arc-extinguishing cabinet 100.

[0025] The insulation protection assembly 200 includes an insulation plate 210 and a wiring member 220 . A plurality of wiring members 220 are movably mounted on the upper side of the insulation plate 210 .

[0026] The insulating plate 210 includes an insulating flame-retardant layer 213 and a hard plastic plate 214. The outer side of the hard plastic plate 214 is wrapped with an insulating flame-retardant layer 213. In actual use, by adding an insulating plate 210 between the primary chamber and the busbar chamber, maintenance personnel can avoid potential hazards caused by the knife switch body 120 when repairing the primary chamber.

[0027] See also Figure 1 、 Figure 2 The upper surface of the insulating plate 210 is penetrated downward to form a plurality of second adjustment slots 212 , and the front and rear sides of each second adjustment slot 212 respectively penetrate downward to form a first adjustment slot 211 .

[0028] The structure of the second adjusting slot 212 is the same as that of the first adjusting slot 211 , and the length of the second adjusting slot 212 is greater than that of the first adjusting slot 211 .

[0029] As the first embodiment of the present utility model, an insulating protection component 200 is installed on the lower side of the knife switch body 120 of the arc extinguishing cabinet 100, and an insulating plate 210 composed of an insulating flame retardant layer 213 and a hard plastic plate 214 is used. In actual use, when maintenance personnel repair the arc extinguishing cabinet 100, the insulating protection component 200 can isolate the knife switch body 120 outside the primary chamber. After isolating the energized knife switch body 120, when maintenance personnel enter the primary chamber for maintenance, they can avoid contact with the energized knife switch body 120, thereby improving the personal safety of the maintenance personnel.

[0030] See also Figures 1 to 4 The wiring component 220 includes a slide plate 221, a guide block 1 223 and a guide block 224. A guide block 1 223 is arranged in the middle of the lower surface of the slide plate 221, and a guide block 224 is arranged on the front and rear sides of the lower surface of the slide plate 221 respectively. The arrangement of the wiring component 220 facilitates the wiring of the electrical components in the primary chamber and the electrical components in the busbar chamber.

[0031] The first guide block 223 is slidably installed inside the second adjustment through groove 212, and the second guide block 224 is slidably installed inside the first adjustment through groove 211. A screw 225 is provided in the middle of the lower end of each second guide block 224. The height of the second guide block 224 is the same as the depth of the first adjustment through groove 211. A butterfly nut is threadedly connected to the lower side of the screw 225.

[0032] The insulating and flame-retardant layer 213 is an insulating and flame-retardant rubber. The structure and material of the insulating plate 210 are the same as those of the sliding plate 221.

[0033] The width and length of the sliding plate 221 are both greater than the width and length of the second adjustment through groove 212. Multiple wiring holes 222 with different apertures are formed by penetrating the first guide block 223 downward from the upper surface of the sliding plate 221.

[0034] As the second embodiment of the present invention, based on the above first embodiment, in actual use, when wiring is required, the sliding plate 221 at a suitable position and the corresponding wiring holes 222 can be selected according to the wiring position and the diameter of the cable. If it is necessary to adjust the left and right positions of the cable, the butterfly nut can be loosened so that the sliding plate 221 can slide relative to the insulating plate 210, and the sliding plate 221 can be slid left and right. Since the width and length of the sliding plate 221 are both greater than the width and length of the second adjustment through groove 212, when the sliding plate 221 is moved, the first adjustment through groove 211 and the second adjustment through groove 212 will not be exposed, and the insulating performance of the insulating plate 210 can be ensured.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An arc extinguishing cabinet with an insulating structure for a knife switch, comprising: Arc suppression cabinet (100) and insulation protection component (200), characterized in that an insulation protection component (200) is installed between the upper side of the primary chamber at the lower end of the arc suppression cabinet (100) and the bus chamber through a plurality of angle plates (110), and a knife switch body (120) is installed on the lower side of the bus chamber of the arc suppression cabinet (100); The insulation protection component (200) includes an insulation board (210) and a wiring member (220), and a plurality of wiring members (220) are movably installed on the upper side of the insulation board (210); The insulation board (210) includes an insulation and flame retardant layer (213) and a hard plastic board (214), and the hard plastic board (214) is wrapped with an insulation and flame retardant layer (213) on the outside.

2. The arc-extinguishing cabinet with an insulating structure on the knife switch according to claim 1, characterized in that: A plurality of adjusting through slots two (212) are formed by penetrating downward from the upper surface of the insulation board (210), and adjusting through slots one (211) are respectively formed by penetrating downward through the insulation body in the front side and the rear side of each adjusting through slot two (212).

3. The arc-extinguishing cabinet with an insulating structure on the knife switch according to claim 2, characterized in that: The structure of the adjusting through slot two (212) is the same as that of the adjusting through slot one (211), and the length of the adjusting through slot two (212) is greater than the length of the adjusting through slot one (211).

4. The arc suppression cabinet with an insulating structure on the knife switch according to claim 3, characterized in that: The wiring member (220) includes a sliding plate (221), a guide block one (223) and a guide block two (224). A guide block one (223) is arranged in the middle of the lower surface of the sliding plate (221), and a guide block two (224) is respectively arranged on the front side and the rear side of the lower surface of the sliding plate (221).

5. The arc extinguishing cabinet with an insulating structure on the knife switch according to claim 4, characterized in that: The guide block one (223) is slidably installed inside the adjusting through slot two (212), the guide block two (224) is slidably installed inside the adjusting through slot one (211), and a screw rod (225) is arranged in the middle of the lower end of each guide block two (224). The height of the guide block two (224) is the same as the depth of the adjusting through slot one (211), and a butterfly nut is threadedly connected to the lower side of the screw rod (225).

6. The arc extinguishing cabinet with an insulating structure on the knife switch according to claim 5, characterized in that: The insulation and flame retardant layer (213) is an insulation and flame retardant rubber, and the structure and material of the insulation board (210) are the same as the structure and material of the sliding plate (221).

7. The arc extinguishing cabinet with an insulating structure on the knife switch according to claim 6, characterized in that: The width and length of the sliding plate (221) are both greater than the width and length of the adjusting through slot two (212), and a plurality of wiring holes (222) with different diameters are formed by penetrating downward through the guide block one (223) from the upper surface of the sliding plate (221).

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