An arc extinguishing chamber

Abstract

The utility model discloses an arc extinguishing chamber, including two arc separation board, the lateral surface of arc separation board is fixed with the distribution of two butt joint inserts of up and down, be provided with the slot of through and through to the front and rear in butt joint insert, and the direction opening of the arc separation board away from it is connected, the butt joint inserts of up and down with the up and down edge of arc separation board non equidistant setting, the butt joint inserts of left and right can butt joint, the utility model discloses two arc separation boards of design shape same and left -right symmetry, reduce product spare parts kind, effectively reduce the cost of preparation and warehousing, improve production efficiency, and, arc separation board adopts the butt joint insert structure of up and down misplacement setting, makes two arc separation boards only need to carry out half -turn and can realize butt joint, greatly simplify the assembly process, significantly improve assembly efficiency, the utility model discloses the installation mode of arc separation board is assembled first, then inserts the installation mode of arc extinguishing piece, is relatively simple and convenient, easy operation.

Description

Technical Field

[0001] This utility model relates to the field of arc-extinguishing chamber technology, and in particular to an arc-extinguishing chamber. Background Technology

[0002] Circuit breakers are prone to generating electric arcs during operation. Without effective protection, this can easily lead to equipment damage. Therefore, circuit breakers are usually equipped with arc-extinguishing chambers in power systems.

[0003] An arc-extinguishing chamber generally includes two arc-blocking plates and an arc-extinguishing chamber sandwiched between the arc-blocking plates, as shown in the arc-extinguishing chamber disclosed in application number CN202420992839.7. In a typical arc-extinguishing chamber, the two arc-blocking plates are usually two components with different shapes, which leads to increased material preparation and storage costs. In addition, the arc-extinguishing chamber uses arc-extinguishing grids to fix the relative positions of the two arc-blocking plates. Although this simplifies the assembly process, it may affect the connection strength, so improvements are needed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an arc-extinguishing chamber to solve the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: an arc-extinguishing chamber, including two arc-blocking plates, two vertically distributed mating blocks are fixed on the side of the arc-blocking plates, and each mating block is provided with a slot that runs through the front and back and opens in the direction away from the arc-blocking plate it is connected to. The vertical mating blocks are not equidistant from the vertical edges of the arc-blocking plates. The two arc-blocking plates are symmetrically arranged left and right. One of the arc-blocking plates is flipped up and down so that the left and right mating blocks can be mated and inserted. It also includes fasteners for locking the left and right mating blocks. The side of the arc-blocking plate is also provided with multiple mounting slots that are equally spaced vertically, and the arc-extinguishing plates are installed in the mounting slots at the same height on the left and right sides of the arc-blocking plate.

[0006] Preferably, the left and right sides of the arc extinguishing plate are respectively provided with a locking block, and the side of the mounting groove is provided with a through groove for accommodating the locking block.

[0007] Preferably, the mounting groove is continuous from front to back, and the end face of the card block and its front side face are chamfered to form a slope.

[0008] Preferably, the card block is provided in two sets distributed front to back, and the through slot is provided in four columns distributed front to back.

[0009] Preferably, the back of the arc-extinguishing plate is provided with two protruding plates distributed vertically, and the protruding plates are provided with a reinforcing groove that runs through the front and back. The uppermost and lowermost arc-extinguishing plates are provided with hook plates that are inserted into the reinforcing grooves.

[0010] Preferably, the uppermost and lowermost mounting grooves are provided with laterally extending notches that open into the reinforcing groove at their front and rear edges, the notches being used to accommodate the laterally extending portion of the hook plate.

[0011] Preferably, the fastener is a butterfly plug.

[0012] Preferably, the back of the arc-blocking plate is provided with a vertically protruding guide arrow, which points to the mating block closer to the edge of the arc-blocking plate.

[0013] This utility model provides an arc-extinguishing chamber, which has the following beneficial effects: This utility model reduces the types of product parts by designing two arc-blocking plates with the same shape and left and right symmetry, effectively reducing material preparation and storage costs and improving production efficiency. In addition, the arc-blocking plates adopt a docking block structure with staggered upper and lower positions, so that the two arc-blocking plates can be docked and inserted by only half a turn, which greatly simplifies the assembly process and significantly improves assembly efficiency. This utility model adopts an installation method of first assembling the arc-blocking plate and then inserting the arc-extinguishing plate, which is relatively simple, convenient and easy to operate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 1 A schematic diagram of the arc-extinguishing plate located in the middle; Figure 4 yes Figure 1 A schematic diagram of the appearance of the arc-extinguishing plate located at the top or bottom layer.

[0015] In the picture: 11. Arc-blocking plate; 12. Connecting block; 13. Slot; 21. Mounting groove; 22. Arc-extinguishing plate; 23. Locking block; 24. Through groove; 31. Protruding plate; 32. Reinforcing groove; 33. Hook plate; 41. Guide arrow. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Reference Figures 1-4 According to an embodiment of the present invention, an arc-extinguishing chamber includes two arc-blocking plates 11. Two vertically distributed mating blocks 12 are fixed on the side of the arc-blocking plates 11. Each mating block 12 has a slot 13 that runs through the front and back and opens away from the arc-blocking plate 11 it is connected to. The vertical mating blocks 12 are not equidistant from the upper and lower edges of the arc-blocking plates 11, meaning that one of the mating blocks 12 is closer to the upper or lower edge of the arc-blocking plate 11. The two arc-blocking plates 11 are identical in shape and symmetrically arranged. One of the arc-blocking plates 11 is flipped vertically so that the left and right mating blocks 12 can be mated and inserted. The chamber also includes fasteners for locking the left and right mating blocks 12. The side of the arc-blocking plate 11 is also provided with a plurality of vertically distributed mounting slots 21. Arc-extinguishing plates 22 are installed in the mounting slots 21 at the same height in the left and right arc-blocking plates 11.

[0021] In this embodiment, the two arc-blocking plates 11 have the same shape, reducing the material preparation and storage costs of product components. During assembly, the workers symmetrically arrange the two arc-blocking plates 11 and bring the mating blocks 12 within the two arc-blocking plates 11 closer to each other. Then, by rotating one of the mating blocks 12 half a turn, the two vertically misaligned mating blocks 12 on the left and right arc-blocking plates 11 can be mated (e.g., ...). Figure 1 As shown in the figure, the workers can then complete the assembly of the arc-extinguishing outdoor frame by connecting the left and right docking blocks 12 with fasteners.

[0022] In this embodiment, the arc extinguishing plate 22 is fixed by providing a locking block 23 on the left and right sides of the arc extinguishing plate 22, and a through groove 24 for accommodating the locking block 23 in the side of the mounting groove 21. That is, the arc extinguishing plate 22 can be locked when the locking block 23 is inserted into the through groove 24.

[0023] In this embodiment, one of the arc-blocking plates 11 can be placed flat on the mounting platform, and then the arc-extinguishing plate 22 is installed on the arc-blocking plate 11 from top to bottom, and finally another arc-blocking plate 11 is installed.

[0024] In the second embodiment, to further simplify the installation process, the mounting slot 21 is designed to be continuous from front to back, such as... Figure 3 As shown, the side end face of the card block 23 is chamfered with its front side face to form a slope.

[0025] In this embodiment, the operator can first connect the two arc-blocking plates 11 through the docking block 12 and the fastener, and then insert the arc-extinguishing plate 22 into the mounting groove 21 from back to front. Then, the arc-extinguishing plate 22 is locked by the locking block 23 and the through groove 24. During this process, the arc-blocking plate 11 and the locking block 23 will undergo slight deformation to allow the arc-extinguishing plate 22 to pass through. After the locking block 23 is embedded in the through groove 24, the arc-blocking plate 11 and the locking block 23 will return to their original shape and complete the locking.

[0026] To save materials and reduce the weight of the arc-extinguishing chamber, and to improve the tightness of the arc-extinguishing plate 22, such as Figure 1 As shown, the card block 23 is provided in two sets distributed front and back, and the through slot 24 is provided in four columns distributed front and back. Under this arrangement, the shape of the arc-blocking plate 11 can still remain consistent.

[0027] In a second embodiment of the arc-extinguishing chamber, to further improve the robustness of the assembled arc-extinguishing chamber, such as... Figure 2 and Figure 4As shown, two protruding plates 31 are provided on the back of the arc-blocking plate 11, and a reinforcing groove 32 is provided in the protruding plate 31. The uppermost and lowermost arc-extinguishing plates 22 are provided on their sides, and hook plates 33 are inserted into the reinforcing groove 32, thereby further reinforcing the two arc-blocking plates 11.

[0028] In addition, in order to prevent the hook plate 33 from protruding, the uppermost and lowermost mounting grooves 21 are provided with laterally extending notches that pass through the reinforcing groove 32 at their front and rear edges. The notches are used to accommodate the laterally extended portion of the hook plate 33.

[0029] It should be noted that the fastener can be a butterfly plug, and the mating block 12 has a through hole that extends vertically and through the slot 13 to accommodate the butterfly plug. In this case, the operator can tighten it from one side to fix the mating block 12. Of course, the fastener can also be a bolt and a nut. The bolt can pass through the through hole to achieve the fixing work. The fastener is not shown in the figure.

[0030] In addition, for ease of installation, a vertically protruding guide arrow 41 is provided on the back of the arc-blocking plate 11. The guide arrow 41 points to the mating block 12 closer to the edge of the arc-blocking plate 11, that is, in Figure 1 In the middle, the guide arrow 41 on the right side of the arc-blocking plate 11 is set upward, while the guide arrow 41 on the left side of the arc-blocking plate 11 is set downward. When assembling, the workers only need to ensure that the arrows in the two arc-blocking plates 11 are facing opposite directions to assemble the two arc-blocking plates 11.

[0031] It should be noted that the front side of the arc-extinguishing plate 22 is also provided with a concave surface to enhance the arc-extinguishing effect.

[0032] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An arc-extinguishing chamber, comprising two arc-blocking plates (11), characterized in that: Two vertically distributed mating blocks (12) are fixed on the side of the arc-blocking plate (11). The mating blocks (12) are provided with slots (13) that are open from front to back and open away from the arc-blocking plate (11) they are connected to. The vertical mating blocks (12) are not equidistant from the vertical edges of the arc-blocking plate (11). The two arc-blocking plates (11) are symmetrically arranged from left to right. One of the arc-blocking plates (11) is flipped up and down so that the left and right mating blocks (12) can be mated and inserted. The plate also includes fasteners for locking the left and right mating blocks (12). The side of the arc-blocking plate (11) is also provided with multiple mounting slots (21) that are equally spaced vertically. The mounting slots (21) at the same height on the left and right sides of the arc-blocking plate (11) are equipped with arc-extinguishing plates (22).

2. The arc-extinguishing chamber according to claim 1, characterized in that: The arc extinguishing plate (22) is provided with a locking block (23) on its left and right sides respectively, and the mounting groove (21) is provided with a through groove (24) for accommodating the locking block (23) on its side.

3. The arc-extinguishing chamber according to claim 2, characterized in that: The mounting groove (21) is through the front and back, and the end face of the card block (23) is chamfered with its front side to form a slope.

4. The arc-extinguishing chamber according to claim 3, characterized in that: The card block (23) is provided with two sets distributed in the front and back, and the through slot (24) is provided with four columns distributed in the front and back.

5. An arc-extinguishing chamber according to claim 3, characterized in that: The back of the arc-blocking plate (11) is provided with two protruding plates (31) distributed vertically. The protruding plates (31) are provided with a reinforcing groove (32) that runs through the front and back. The uppermost and lowermost arc-extinguishing plates (22) are provided with hook plates (33) that are inserted into the reinforcing groove (32).

6. An arc-extinguishing chamber according to claim 5, characterized in that: The uppermost and lowermost mounting grooves (21) are provided with laterally extending notches that open into the reinforcing groove (32) at their front and rear edges. The notches are used to accommodate the laterally extending portion of the hook plate (33).

7. An arc-extinguishing chamber according to claim 1, characterized in that: The fastener is a butterfly plug.

8. An arc-extinguishing chamber according to claim 1, characterized in that: The back of the arc-blocking plate (11) is provided with a vertically protruding guide arrow (41), which points to the mating block (12) closer to the edge of the arc-blocking plate (11).

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