Vacuum arc-extinguishing chamber one-time sealing and discharging positioning die

Abstract

The utility model discloses a vacuum arc-extinguishing chamber one-time sealing and discharging positioning mold, which comprises a first positioning mold and a second positioning mold, a labyrinth groove is arranged on the top surface of the first positioning mold, a labyrinth block is arranged at the position of the second positioning mold corresponding to the labyrinth groove, and the labyrinth block is matched with the labyrinth groove for use. A splicing block is integrally arranged on the side face of the first positioning mold, a splicing groove is formed in the position, corresponding to the splicing block, of the second positioning mold, and the splicing block is spliced with the splicing groove. According to the utility model, the maze groove and the maze block are arranged, so that the connection between the first positioning die and the second positioning die is tighter, the positioning precision between the first positioning die and the second positioning die can be effectively improved, and the positioning error is reduced. Through the design of the splicing grooves and the splicing blocks, splicing between the first positioning mold and the second positioning mold is facilitated, and the problem that manual positioning is poor in consistency is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of electro-vacuum device process structure, and in particular to a vacuum interrupter primary sealing and positioning mold. Background Technology

[0002] The vacuum interrupter is the heart of a vacuum circuit breaker. Its main function is to quickly extinguish the arc and suppress the current after the medium- and high-voltage circuit is cut off by utilizing the excellent insulation of the vacuum inside the tube. The production and assembly of the vacuum interrupter involves using brazing to weld together parts of different materials, such as metallized ceramic parts, moving and stationary end covers, and conductive rods. During the welding process, inserts are used to separate the moving and stationary contacts by a certain distance to prevent them from sticking together during the sealing process. During the sealing process between the cover plate and the metallized ceramic shell, the operator observes to ensure the positioning accuracy of the cover plate and the ceramic cylinder.

[0003] Existing technologies have the following problems:

[0004] Extensive searches revealed that patent application CN202322650038.0 discloses a vacuum interrupter sealing and positioning mold. This patent uses a first positioning mold and a second positioning mold to fit along the vacuum interrupter conductive rod onto the moving end cover plate and metallized ceramic cover of the moving end of the vacuum interrupter. However, in actual use, the connection between the first positioning mold and the second positioning mold is less tight, and the positioning accuracy between the first positioning mold and the second positioning mold is low, ultimately leading to a large positioning error.

[0005] To address these shortcomings, we proposed a vacuum interrupter chamber one-time sealing and positioning mold. Utility Model Content

[0006] The purpose of this utility model is to provide a vacuum interrupter primary sealing and positioning mold to overcome the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a vacuum interrupter primary sealing and positioning mold, comprising a first positioning mold and a second positioning mold, wherein the top surface of the first positioning mold is provided with a labyrinth groove, and the second positioning mold is provided with a labyrinth block at the position corresponding to the labyrinth groove, and the labyrinth block and the labyrinth groove are used in conjunction; the side of the first positioning mold is integrally provided with a splicing block, and the second positioning mold is provided with a splicing groove at the position corresponding to the splicing block, wherein the splicing block and the splicing groove are spliced ​​together.

[0008] Preferably, the first positioning mold and the second positioning mold fit together.

[0009] Preferably, the contact surface between the splicing block and the splicing groove is an inclined structure with an inclination angle of 15°-30°.

[0010] Preferably, the surfaces of the first positioning mold and the second positioning mold are coated with an anti-oxidation coating.

[0011] Preferably, the first positioning mold and the second positioning mold have the same diameter.

[0012] Preferably, the depth of the maze groove is the same as the thickness of the maze block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, by setting a maze groove and a maze block, the connection between the first positioning mold and the second positioning mold is made tighter, which can effectively improve the positioning accuracy between the first positioning mold and the second positioning mold and reduce the positioning error.

[0015] 2. The design of splicing groove and splicing block in this utility model facilitates the splicing between the first positioning mold and the second positioning mold, thus solving the problem of poor consistency in manual positioning. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of a vacuum interrupter primary sealing and positioning mold proposed in this utility model;

[0018] Figure 2 This is a side view of the second positioning mold;

[0019] Figure 3 This is a structural schematic diagram of the second positioning mold and the splicing groove;

[0020] Figure 4 This is a schematic diagram of the structure of the second positioning mold and the maze block.

[0021] Legend:

[0022] 1. First positioning mold; 2. Second positioning mold; 3. Assembly block; 4. Assembly groove; 5. Maze groove; 6. Maze block. 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] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1-4 A vacuum interrupter primary sealing and positioning mold includes a first positioning mold 1 and a second positioning mold 2. The first positioning mold 1 is provided with a labyrinth groove 5 on its top surface, and a labyrinth block 6 is provided at the position corresponding to the labyrinth groove 5 of the second positioning mold 2. The labyrinth block 6 is used in conjunction with the labyrinth groove 5. A splicing block 3 is integrally provided on the side of the first positioning mold 1, and a splicing groove 4 is provided at the position corresponding to the splicing block 3 of the second positioning mold 2. The splicing block 3 is spliced ​​with the splicing groove 4.

[0026] In use, the first positioning mold 1 and the second positioning mold 2 are fitted onto the moving end cover plate and the metallized ceramic cover of the moving end of the vacuum interrupter along the conductive rod of the vacuum interrupter. The labyrinth groove 5 and the labyrinth block 6 make the connection between the first positioning mold 1 and the second positioning mold 2 tighter, which can effectively improve the positioning accuracy between the first positioning mold 1 and the second positioning mold 2 and reduce the positioning error. The design of the splicing groove 4 and the splicing block 3 facilitates the splicing between the first positioning mold 1 and the second positioning mold 2 and solves the problem of poor consistency in manual positioning.

[0027] In this implementation scheme: the first positioning mold 1 and the second positioning mold 2 fit together.

[0028] Specifically, this makes the connection between the two more tight, which is beneficial for sealing and discharging.

[0029] In this implementation plan: the contact surface between the splicing block 3 and the splicing groove 4 is a sloping structure with an inclination angle of 15°-30°.

[0030] Specifically, it facilitates the insertion of splicing block 3 and splicing groove 4, thereby making it easier to connect and position the first positioning mold 1 and the second positioning mold 2.

[0031] In this implementation scheme: the surfaces of the first positioning mold 1 and the second positioning mold 2 are coated with an anti-oxidation coating.

[0032] Specifically, the antioxidant coating uses a nickel-based antioxidant coating, which has a good antioxidant effect and extends service life.

[0033] In this implementation scheme: the first positioning mold 1 and the second positioning mold 2 have the same diameter.

[0034] Specifically, when used together, the two can perform a single sealing and dewatering process on the vacuum interrupter.

[0035] In this implementation scheme: the depth of the maze groove 5 is the same as the thickness of the maze block 6.

[0036] Specifically, the maze groove 5 and the maze block 6 are used together to improve the tightness between the first positioning mold 1 and the second positioning mold 2.

[0037] Working principle: In use, the first positioning mold 1 and the second positioning mold 2 are fitted onto the moving end cover plate and the metallized ceramic cover of the moving end of the vacuum interrupter along the conductive rod of the vacuum interrupter. The labyrinth groove 5 and labyrinth block 6 make the connection between the first positioning mold 1 and the second positioning mold 2 tighter, which can effectively improve the positioning accuracy between the first positioning mold 1 and the second positioning mold 2 and reduce the positioning error. The design of splicing groove 4 and splicing block 3 facilitates the splicing between the first positioning mold 1 and the second positioning mold 2, and solves the problem of poor consistency in manual positioning.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning mold for a vacuum interrupter, comprising a first positioning mold (1) and a second positioning mold (2), characterized in that, The top surface of the first positioning mold (1) is provided with a maze groove (5), and the position of the second positioning mold (2) corresponding to the maze groove (5) is provided with a maze block (6), and the maze block (6) is used in conjunction with the maze groove (5). The side of the first positioning mold (1) is provided with an integral splicing block (3), and the position of the position of the second positioning mold (2) corresponding to the splicing block (3) is provided with a splicing groove (4), and the splicing block (3) is spliced ​​with the splicing groove (4).

2. The vacuum interrupter chamber primary sealing and positioning mold according to claim 1, characterized in that, The first positioning mold (1) and the second positioning mold (2) fit together.

3. The vacuum interrupter chamber primary sealing and positioning mold according to claim 1, characterized in that, The contact surfaces of the splicing block (3) and the splicing groove (4) are inclined surfaces with an inclination angle of 15°-30°.

4. The vacuum interrupter chamber primary sealing and positioning mold according to claim 1, characterized in that, The first positioning mold (1) and the second positioning mold (2) are coated with an anti-oxidation coating.

5. The vacuum interrupter chamber primary sealing and positioning mold according to claim 1, characterized in that, The first positioning mold (1) and the second positioning mold (2) have the same diameter.

6. The vacuum interrupter chamber primary sealing and positioning mold according to claim 1, characterized in that, The depth of the maze groove (5) is the same as the thickness of the maze block (6).

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