Circuit breaker arc isolation sheet installation structure

Abstract

The utility model discloses a circuit breaker arc-isolating sheet mounting structure, which belongs to the field of circuit breaker arc-isolating sheets, and is characterized in that an existing integrated arc-isolating sheet is arranged into a splicing base body sheet and an expansion sheet structure which can be spliced and detached, so that modular splicing can be realized between the splicing base body sheet and the expansion sheet; the use requirements of arc isolation areas with different sizes are met and adapted; the supporting segments are fixedly connected to the two sides of the inserting base body sheet and the two sides of the expanding sheet, so that the supporting segments can be bent and then inserted into the corresponding sleeving ring segments, contact supporting with wires connected to the wiring ends in the peripheral area is facilitated, and the effect of assisting in controlling the arc isolating sheet body to be in the vertical state is achieved; the distance between the arc-isolating sheet body and the wires on the two sides is ensured to be equal, the arc-isolating effect is prevented from being influenced, meanwhile, the bent supporting segments on the two sides can relatively increase the thickness of the arc-isolating sheet body, the risk of arc breakdown is reduced, and the use safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of arc-isolating pieces of circuit breakers, and more specifically to an arc-isolating piece installation structure of circuit breakers. Background Art

[0002] In the power system, the circuit breaker plays a vital protective role. When an abnormal situation such as overload or short circuit occurs in the circuit, the circuit breaker can quickly cut off the circuit to ensure the safety of equipment and personnel, and the installation of the arc-isolating plate on the circuit breaker is also one of its key components. The arc-isolating plate structure installed on the existing circuit breakers is mostly relatively simple, an integrated thin sheet structure, and the size is relatively fixed. It is not convenient to appropriately increase or decrease the length of the arc-isolating plate according to the actual installation environment. In addition, the existing arc-isolating plates lack the corresponding supporting structure after installation. The installed arc-isolating plates are mostly in a skewed state, and it is difficult to ensure that the distance between the wires on both sides of the arc-isolating plate is relatively equal, which affects the arc-isolating effect and the aesthetics after installation. Therefore, we propose a circuit breaker arc-isolating plate installation structure to solve the above-mentioned problems. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a circuit breaker arc isolation plate installation structure, which arranges the existing integrated arc isolation plate into a plug-in base plate and an expansion plate structure that can be assembled and disassembled, so that modular assembly can be achieved between the plug-in base plate and the expansion plate, so as to meet and adapt to the use requirements of arc isolation areas of different sizes; and the plug-in base plate and the expansion plate are fixedly connected with support segments on both sides, so that the support segments can be bent and inserted into the corresponding sleeve ring segment, which is convenient for contacting and supporting the wires connected to the wiring terminals in the surrounding area, so as to achieve the effect of assisting in controlling the arc isolation plate body to be in an upright state, ensuring that the distance between the arc isolation plate body and the wires on both sides is equal, avoiding affecting the arc isolation effect, and at the same time, the support segments after the two sides are bent can relatively increase the thickness of the arc isolation plate body, reduce the risk of being punctured by the arc, and greatly improve the safety of use.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A circuit breaker arc-isolating plate installation structure comprises a circuit breaker body and a plurality of arc-isolating plate bodies with the same structure, the circuit breaker body is provided with a plurality of wiring terminals, the circuit breaker body between two adjacent wiring terminals is provided with slots, and the plurality of arc-isolating plate bodies are respectively plugged into the corresponding slots;

[0008] The arc isolation plate body includes a plug-in base plate and an expansion plate. An I-shaped plug-in section and a lap section one are respectively arranged on both sides of the plug-in base plate, and a lap section two and a lap section three are respectively arranged on both sides of the expansion plate. The cross-section of the slot is adapted to the cross-section structure of the I-shaped plug-in section. The I-shaped plug-in section is plugged into the inside of the slot. A V-shaped support section is also fixedly connected to the I-shaped plug-in section, and the V-shaped support section is tightly attached to one side of the inner wall of the slot.

[0009] Furthermore, a plurality of clamping holes are equidistantly provided on the overlap section 1 and the overlap section 3, and a conical clamping cap is fixedly connected to the overlap section 2 at the position corresponding to the clamping hole through a connecting pile, the overlap section 1 overlaps with the overlap section 2, and the conical clamping cap is clamped in the corresponding clamping hole.

[0010] Furthermore, the plug-in base sheet and the expansion sheet are fixedly connected with a support segment and a sleeve ring segment on both sides, and one end of the support segment is plugged into the inside of the sleeve ring segment.

[0011] Furthermore, the overlapping section 1, the overlapping section 2 and the overlapping section 3 are all equal in thickness, and the thickness of the overlapping section 1 is half of the thickness of the plug-in base sheet.

[0012] Furthermore, the width and thickness of the inner wall of the sleeve ring segment are equal to the width and thickness of the outer wall of the support segment.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) This solution, by configuring the existing integrated arc isolation sheet into a plug-in base sheet and an expansion sheet structure that can be assembled and disassembled, enables modular assembly between the plug-in base sheet and the expansion sheet, thereby meeting and adapting to the use requirements of arc isolation areas of different sizes;

[0016] (2) In this solution, support segments are fixedly connected on both sides of the plug-in base plate and the expansion plate, so that the support segments can be bent and inserted into the corresponding sleeve ring segment, which is convenient for contacting and supporting the wires connected to the wiring terminals in the surrounding area, and achieves the effect of assisting in controlling the arc isolation plate body to be in an upright state, ensuring that the distance between the arc isolation plate body and the wires on both sides is equal to avoid affecting the arc isolation effect. At the same time, the support segments on both sides can be bent to relatively increase the thickness of the arc isolation plate body, reduce the risk of being punctured by the arc, and greatly improve the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0019] Figure 3 This is a schematic diagram of the arc isolation plate body structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the split structure of the arc isolation plate body of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Circuit breaker body; 101. Terminal; 102. Slot; 2. Arc-isolating plate body; 3. Inserting base plate; 301. I-shaped inserting section; 3011. V-shaped supporting section; 302. Overlapping section 1; 3021. Clamping hole; 303. Supporting segment; 304. Sleeve ring section; 4. Extension plate; 401. Overlapping section 2; 4011. Conical clamping cap; 402. Overlapping section 3. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 4 A circuit breaker arc-isolating plate installation structure includes a circuit breaker body 1 and a plurality of arc-isolating plate bodies 2 with the same structure. The circuit breaker body 1 is provided with a plurality of wiring terminals 101. The circuit breaker body 1 between two adjacent wiring terminals 101 is provided with slots 102. The plurality of arc-isolating plate bodies 2 are respectively plugged into the corresponding slots 102.

[0026] The arc-isolating plate body 2 includes a plug-in base plate 3 and an expansion plate 4. The plug-in base plate 3 is provided with an I-shaped plug-in section 301 and an overlap section 1 302 on both sides. The expansion plate 4 is provided with an overlap section 2 401 and an overlap section 3 402 on both sides. The cross section of the slot 102 is adapted to the cross section structure of the I-shaped plug-in section 301. The I-shaped plug-in section 301 is plugged into the inside of the slot 102. The I-shaped plug-in section 301 is also fixedly connected to a V-shaped support section 3011, and the V-shaped support section 3011 is closely attached to one side of the inner wall of the slot 102. A plurality of clamping holes 3021 are equidistantly provided on the overlap section 1 302 and the overlap section 3 402. A conical clamping cap 4011 is fixedly connected to the overlap section 2 401 at the position of the corresponding clamping hole 3021 through a connecting pile. The overlap section 1 302 overlaps the overlap section 2 401, and the conical clamping cap 4011 is clamped into the corresponding clamping hole 3021. The support segment 303 and the sleeve ring segment 304 are also fixedly connected on both sides of the plug-in base sheet 3 and the expansion sheet 4. One end of the support segment 303 is plugged into the inside of the sleeve ring segment 304.

[0027] The use principle of this type of circuit breaker arc isolation plate installation structure is:

[0028] First, after the circuit breaker body 1 is installed and the corresponding wires are connected through the terminal 101, the arc isolation plate body 2 is respectively inserted into the corresponding slots 102 through the I-shaped plug-in section 301. At this time, the arc isolation protection effect on both sides of the wire connection can be completed. When the length of the arc isolation plate body 2 is long, it is only necessary to pull the conical clamping cap 4011 at the connection between the overlapping section 1 302 and the overlapping section 2 401 out of the connection with the clamping hole 3021 to remove the expansion plate 4, and the length of the arc isolation plate body 2 is shortened. When the length of the arc isolation plate body 2 is short, it is only necessary to reinstall the expansion plate 4 back to its original position according to the above steps or install more expansion plates 4. The operation is simple.

[0029] After the arc isolation plate body 2 is plugged in, the depth of the support segment 303 inserted into the corresponding sleeve ring segment 304 is adjusted to control the curvature of the support segment 303 when bent, so that the outer wall of the support segment 303 contacts and supports the outer wall of the corresponding wire to prevent the arc isolation plate body 2 from tilting, thereby achieving better protection and a more beautiful overall appearance.

[0030] Embodiment 2:

[0031] In view of the above embodiment 1, for further description, refer to Figure 3 The thickness of overlapping section 1 302 , overlapping section 2 401 and overlapping section 3 402 are all equal, and the thickness of overlapping section 1 302 is half of the thickness of the plug-in base sheet 3 , and the width and thickness of the inner wall of the sleeve ring section 304 are equal to the width and thickness of the outer wall of the supporting segment 303 .

[0032] By making the thickness of overlapping section 1 302, overlapping section 2 401 and overlapping section 3 402 equal, and the thickness of overlapping section 1 302 is half of the thickness of the plug-in base sheet 3, the modular assembly can be more integrated and the aesthetics can be improved. The width and thickness of the inner wall of the sleeve ring section 304 are equal to the width and thickness of the outer wall of the supporting segment 303, which can increase the compactness of the supporting segment 303 after being inserted into the interior of the supporting segment 303, which is conducive to completing the positioning of the shape and making the support more convenient.

[0033] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A circuit breaker arc isolation plate installation structure, comprising a circuit breaker body (1) and a plurality of arc isolation plate bodies (2) with the same structure, characterized in that: The circuit breaker body (1) is provided with a plurality of wiring terminals (101), and a slot (102) is provided on the circuit breaker body (1) between two adjacent wiring terminals (101), and a plurality of arc isolation plate bodies (2) are respectively plugged into the corresponding slots (102); The arc isolation plate body (2) comprises an insert base plate (3) and an expansion plate (4); an I-shaped insert section (301) and a lap section one (302) are respectively arranged on both sides of the insert base plate (3); a lap section two (401) and a lap section three (402) are respectively arranged on both sides of the expansion plate (4); the cross section of the slot (102) is adapted to the cross section structure of the I-shaped insert section (301); the I-shaped insert section (301) is inserted into the inside of the slot (102); a V-shaped support section (3011) is also fixedly connected to the I-shaped insert section (301), and the V-shaped support section (3011) is tightly attached to one side of the inner wall of the slot (102).

2. The circuit breaker arc isolation plate installation structure according to claim 1, characterized in that: The overlapping section 1 (302) and the overlapping section 3 (402) are both provided with a plurality of equally spaced clamping holes (3021); the overlapping section 2 (401) at the position corresponding to the clamping hole (3021) is fixedly connected with a conical clamping cap (4011) via a connecting pile; the overlapping section 1 (302) overlaps with the overlapping section 2 (401), and the conical clamping cap (4011) is clamped into the corresponding clamping hole (3021).

3. The circuit breaker arc isolation plate installation structure according to claim 1, characterized in that: The two sides of the plug-in base sheet (3) and the expansion sheet (4) are also fixedly connected with a support segment (303) and a sleeve ring segment (304), and one end of the support segment (303) is plugged into the inside of the sleeve ring segment (304).

4. The circuit breaker arc isolation plate installation structure according to claim 1, characterized in that: The overlapping section 1 (302), the overlapping section 2 (401) and the overlapping section 3 (402) are all of equal thickness, and the thickness of the overlapping section 1 (302) is half the thickness of the plug-in base sheet (3).

5. The circuit breaker arc isolation plate installation structure according to claim 3, characterized in that: The width and thickness of the inner wall of the sleeve ring segment (304) are equal to the width and thickness of the outer wall of the support segment (303).

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