A disconnector

Abstract

The utility model discloses an isolator, specifically related to switch technical field, including box body and apron, the front end of box body is provided with apron, the top of box body and apron is provided with protection assembly, the protection assembly includes top cover, original reservation hole, baffle, top hole and arc extinguishing chamber, the top of apron is fixed with top cover, the surface of top cover front end is provided with original reservation hole, the inside fixed baffle of original reservation hole, the top of top cover is provided with top hole. The utility model discloses be provided with arc extinguishing chamber, arc extinguishing chamber is located the top position inside box body, the top of conducting strip, under the assistance of short -circuiting plate, short -circuiting series, hide in the inside of arc extinguishing chamber, when using, arc extinguishing chamber can carry out the block of possible arc, and the top hole is communicated with arc extinguishing chamber staggered, then can be used for the inert gas discharge produced when opening and closing, through the hiding of short -circuiting plate on the top of arc extinguishing chamber, the security of the isolator when using has been strengthened.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to an isolating switch. Background Technology

[0002] Disconnect switches, also known as knife switches or electric switches, are primarily used to physically isolate circuits from power sources, providing safe conditions for the maintenance or replacement of electrical equipment. They do not have an automatic tripping function and require manual operation. They are typically used in high-voltage systems as a safety measure during maintenance and repair, and are widely applied at all levels of the power system, from high-voltage transmission to low-voltage distribution systems, including residential buildings, commercial buildings, industrial facilities, power plants, substations, new energy photovoltaics, energy storage equipment, and charging piles.

[0003] Most disconnect switches use an upper and lower wiring method, but some are lower wiring type. When such disconnect switches are used, the internal short circuit point is located at the original upper opening position, which is on the outside. The generated arc can easily fly out along the upper opening, which can cause danger and short circuit between arcs.

[0004] Therefore, a disconnecting switch is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a disconnecting switch to solve the problem of poor protection when using disconnecting switches mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a disconnecting switch, comprising a housing and a cover plate, wherein the front end of the housing is provided with a cover plate, and the top end of the housing and the cover plate is provided with a protective component, the protective component comprising a top cover, a pre-reserved hole, a partition plate, a top hole, and an arc-extinguishing chamber, the top end of the cover plate is fixedly provided with a top cover, the front end surface of the top cover is provided with a pre-reserved hole, the interior of the pre-reserved hole is fixedly provided with a partition plate, the top end of the top cover is provided with a top hole, a conductive sheet is installed inside the housing, the top end of the housing is fixedly provided with an arc-extinguishing chamber, the top end of the conductive sheet extends into the interior of the arc-extinguishing chamber, and a shorting plate is fixedly provided with the top end of the conductive sheet.

[0007] As a further technical solution of this utility model, four sets of top holes are provided at the top of the top cover, and the four sets of top holes are distributed at equal intervals.

[0008] As a further technical solution of this utility model, a control console is fixed to the front end of the cover plate, and a switch body is movably installed inside the control console.

[0009] As a further technical solution of this utility model, an isolation cover is fixed to the bottom end of the cover plate, and a front hole is provided on the front surface of the isolation cover.

[0010] As a further technical solution of this utility model, the bottom end of the isolation cover is provided with a bottom hole, and a wiring terminal is provided inside the bottom hole.

[0011] As a further technical solution of this utility model, the surface of the front end of the cover plate is provided with a mounting groove, and a mounting bolt is installed inside the mounting groove.

[0012] As a further technical solution of this utility model, four sets of mounting grooves are provided on the front surface of the cover plate, and the four sets of mounting grooves are symmetrically distributed.

[0013] As a further technical solution of this utility model, slots are provided on both sides of the box body, and buckles are fixed on both sides of the rear end of the cover plate, with the rear ends of the buckles extending into the interior of the slots.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting an arc-extinguishing chamber, which is located at the top of the box body and the top of the conductive sheet, and is short-circuited in series with the assistance of the short-circuiting plate, the arc-extinguishing chamber can block the possible electric arc during use. The top hole connected to the arc-extinguishing chamber can be used to discharge the inert gas generated during opening and closing. By hiding the short-circuiting plate with the arc-extinguishing chamber, the safety of the disconnecting switch during use is enhanced.

[0015] By installing an isolation cover located at the bottom of the cover plate, which covers the outside of the wiring terminals during installation, the wiring terminals can be isolated and protected, thus realizing the isolation and protection function of the wiring terminals of the disconnecting switch.

[0016] With the addition of slots and buckles, when the cover plate is placed on the front end of the box, the buckles at both ends can smoothly engage with the slots on both sides of the box. The cooperation between the buckles and slots enables the cover plate to be positioned and pre-installed. The cover plate can then be further secured with mounting bolts later, thus realizing the pre-installation auxiliary function of the isolating switch cover plate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a two-dimensional structural diagram of the present invention from a second perspective;

[0019] Figure 3 This is a side sectional view of the present invention.

[0020] Figure 4 This is a front view structural diagram of the present utility model;

[0021] Figure 5 This is the circuit diagram of the isolating switch.

[0022] In the diagram: 1. Box body; 2. Cover plate; 3. Control panel; 4. Switch body; 5. Top cover; 6. Original reserved hole; 7. Partition plate; 8. Top hole; 9. Isolation cover; 10. Front hole; 11. Bottom hole; 12. Terminal block; 13. Mounting groove; 14. Mounting bolt; 15. Slot; 16. Snap-on; 17. Conductive sheet; 18. Shorting plate; 19. Arc extinguishing chamber. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 An embodiment of this utility model provides: a disconnecting switch, including a housing 1 and a cover plate 2. The front end of the housing 1 is provided with the cover plate 2. The top of the housing 1 and the cover plate 2 are provided with a protective component. The protective component includes a top cover 5, a pre-reserved hole 6, a partition 7, a top hole 8, and an arc-extinguishing chamber 19. The top cover 5 is fixed to the top of the cover plate 2. The pre-reserved hole 6 is provided on the surface of the front end of the top cover 5. The partition 7 is fixed inside the pre-reserved hole 6. The top of the top cover 5 is provided with a top hole 8. Four sets of top holes 8 are provided at the top of the top cover 5. The four sets of top holes 8 are distributed at equal intervals. A conductive sheet 17 is installed inside the housing 1. The top of the housing 1 is fixed with the arc-extinguishing chamber 19. The top of the conductive sheet 17 extends into the interior of the arc-extinguishing chamber 19. A shorting plate 18 is fixed to the top of the conductive sheet 17.

[0025] Specifically, such as Figure 1 and Figure 3 As shown, during use, when the cover plate 2 is installed with the box body 1, the top cover 5 located at the top of the cover plate 2 is connected to the arc-extinguishing chamber 19 at the top of the box body 1. The four sets of conductive plates 17 are located inside the box body 1 and are short-circuited in pairs with the assistance of the shorting plate 18. The shorting plate 18 is hidden inside the arc-extinguishing chamber 19 to prevent the arc generated at the shorting plate 18 from flying out. When the opening and closing is controlled, the generated inert gas can be discharged through the multiple sets of top holes 8 above.

[0026] A control panel 3 is fixed to the front end of the cover plate 2. A switch body 4 is movably installed inside the control panel 3. An isolation cover 9 is fixed to the bottom end of the cover plate 2. A front hole 10 is provided on the front surface of the isolation cover 9. A bottom hole 11 is provided at the bottom end of the isolation cover 9. A wiring terminal 12 is provided inside the bottom hole 11.

[0027] Specifically, such as Figure 2As shown, when the cover plate 2 is installed with the box body 1, the isolation cover 9 located on the bottom side of the cover plate 2 covers the outside of the terminal 12. The isolation cover 9 provides isolation protection. The front hole 10 can be used to control the terminal 12 on the inside. The bottom hole 11 located on the bottom side corresponds to the position of the terminal 12 and can be used for wiring connection operations.

[0028] The front surface of the cover plate 2 is provided with a mounting groove 13, and a mounting bolt 14 is installed inside the mounting groove 13. The surfaces on both sides of the box body 1 are provided with slots 15. The rear sides of the cover plate 2 are fixed with buckles 16, and the rear ends of the buckles 16 extend into the interior of the slots 15.

[0029] Specifically, such as Figure 1 and Figure 2 As shown, during use, the two sets of buckles 16 are located at the rear end of the cover plate 2 and are symmetrically distributed. When the cover plate 2 is placed on the box body 1, the two sets of buckles 16 can be inserted into the slots 15 on both sides of the box body 1, which can assist the cover plate 2 in positioning and pre-installation. After that, the mounting bolts 14 are installed in the mounting slot 13 for further fixation.

[0030] Working principle: During use, four sets of conductive plates 17 are laid inside the box 1, extending to the arc-extinguishing chamber 19 at the top. The moving contact is connected to the stationary contact after closing, forming a pair. The top position is short-circuited in series by the shorting plate 18, which is suitable for bottom-in and bottom-out wiring. DC is divided into positive and negative poles, and the bottom positive and negative pole wiring method can be selected as needed. The four poles and multi-stage series connection and bottom-in and bottom-out method can meet the needs of new energy or high DC voltage conditions. When installing the cover plate 2, as the cover plate 2 is connected to the box 1, the two sets of buckles 16 at the rear end of the cover plate 2 can be inserted into the slots 15 on both sides of the box 1, which can assist the positioning and pre-installation of the cover plate 2. Then, the cover plate 2 is installed in the mounting slot 13. The mounting bolts 14 can be used for further fixation. The switch body 4 located on the cover plate 2 is used to control the opening and closing of the conductive sheet 17. The isolation cover 9 located on the bottom side of the cover plate 2 covers the outside of the terminal 12 and provides isolation protection. The front hole 10 can control the terminal 12 on the inside. The bottom hole 11 on the bottom side corresponds to the position of the terminal 12 and can be used for circuit connection. The top cover 5 located at the top of the cover plate 2 is connected to the arc-extinguishing chamber 19 at the top of the box 1. The shorting plate 18 is hidden inside the arc-extinguishing chamber 19 to prevent the arc generated at the shorting plate 18 from flying out. During the opening and closing control process, the inert gas generated can be discharged through the multiple sets of top holes 8 above.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A disconnect switch, comprising a housing (1) and a cover plate (2), characterized in that: The front end of the box (1) is provided with a cover plate (2), and the top of the box (1) and the cover plate (2) are provided with protective components; The protective assembly includes a top cover (5), a pre-reserved hole (6), a partition (7), a top hole (8), and an arc-extinguishing chamber (19). The top cover (5) is fixed to the top of the cover plate (2). The pre-reserved hole (6) is provided on the front surface of the top cover (5). The partition (7) is fixed inside the pre-reserved hole (6). The top hole (8) is provided at the top of the top cover (5). A conductive sheet (17) is installed inside the box body (1). The arc-extinguishing chamber (19) is fixed at the top of the box body (1). The top of the conductive sheet (17) extends into the interior of the arc-extinguishing chamber (19). A shorting plate (18) is fixed at the top of the conductive sheet (17).

2. The disconnecting switch according to claim 1, characterized in that: The top holes (8) are provided in four sets at the top of the top cover (5), and the four sets of top holes (8) are distributed at equal intervals.

3. The disconnecting switch according to claim 1, characterized in that: The front end of the cover plate (2) is fixed with a control console (3), and the switch body (4) is movably installed inside the control console (3).

4. A disconnecting switch according to claim 1, characterized in that: The bottom end of the cover plate (2) is fixed with an isolation cover (9), and the front surface of the isolation cover (9) is provided with a front hole (10).

5. A disconnecting switch according to claim 4, characterized in that: The bottom end of the isolation cover (9) is provided with a bottom hole (11), and a wiring terminal (12) is provided inside the bottom hole (11).

6. A disconnecting switch according to claim 1, characterized in that: The front surface of the cover plate (2) is provided with a mounting groove (13), and a mounting bolt (14) is installed inside the mounting groove (13).

7. A disconnecting switch according to claim 6, characterized in that: The mounting groove (13) is provided in four sets on the front surface of the cover plate (2), and the four sets of mounting groove (13) are symmetrically distributed.

8. A disconnecting switch according to claim 1, characterized in that: The box body (1) has slots (15) on both sides of its surface, and buckles (16) are fixed on both sides of the rear end of the cover plate (2), with the rear end of the buckles (16) extending into the interior of the slots (15).

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