Open-type circuit breaker switching device

Abstract

The utility model discloses an open-type circuit breaker switching device in the technical field of high-voltage circuit breaker assembling and manufacturing, and aims to solve the problems of heat dissipation, complex structure assembling and the like of the conventional circuit breaker switching device. The left side of a sealing plate is provided with an isolation switch operation mechanism and a circuit breaker operation mechanism, and the right side is provided with three switch assemblies. A middle static contact in the switch assembly is provided with a direct moving contact; the upper pole clamping plate and the lower pole clamping plate are arranged on the right side of the sealing plate at intervals; the vacuum arc-extinguishing chamber is arranged between the upper pole clamping plate and the lower pole clamping plate; the static end and the moving end of the vacuum arc-extinguishing chamber are respectively provided with a static end support and a moving end support in a matching manner. The insulating pull rod is connected with the vacuum arc-extinguishing chamber through the static end support. A middle static contact and a closing static contact are arranged on the pole upper clamping plate; a grounding static contact arranged on the right side of the sealing plate is connected with the direct moving contact; the high-voltage circuit breaker is suitable for assembling the high-voltage circuit breaker, and can improve the overall disassembly and assembly and heat dissipation efficiency of the circuit breaker.

Description

Technical Field

[0001] The utility model relates to an open type circuit breaker switch device, belonging to the technical field of high voltage circuit breaker assembly and manufacturing. Background Art

[0002] like Figure 5 Traditional three-position disconnectors are complex to assemble and have scattered installation locations, making them difficult to assemble and replace. Traditional circuit breakers typically use a vacuum interrupter with a sealed pole. This completely encloses the vacuum interrupter within the pole, preventing direct contact between the gas and the heat source, resulting in low heat exchange efficiency.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an open-type circuit breaker switch device, so that the circuit breaker switch device is installed in an integrated manner, the overall structure is simplified, and production and assembly are facilitated; the vacuum interrupter is fixed by an upper clamping plate of the pole and a lower clamping plate of the pole, and the vacuum interrupter is installed in an open manner, so that the vacuum interrupter is directly exposed to the internal insulating gas environment, thereby improving the heat exchange efficiency near the heat source.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides an open type circuit breaker switch device, comprising a switch assembly and a cover plate; an isolating switch operating mechanism and a circuit breaker operating mechanism are provided on the left side of the cover plate, and three switch assemblies are provided on the right side in a corresponding manner;

[0007] Therefore, the switch assembly includes an upper clamping plate of the pole, a lower clamping plate of the pole, a vacuum interrupter, a grounding static contact, an intermediate static contact and a closing static contact; a direct-acting contact is provided above the intermediate static contact; the upper clamping plate of the pole and the lower clamping plate of the pole are spaced apart and arranged on the right side of the sealing plate; the vacuum interrupter is provided between the upper clamping plate of the pole and the lower clamping plate of the pole; the static end of the vacuum interrupter is provided with a static end bracket; the static end bracket is respectively fixedly connected to the upper clamping plate of the pole and the lower clamping plate of the pole; the moving end of the vacuum interrupter is provided with a moving end bracket; the insulating pull rod is connected to the vacuum interrupter through the moving end bracket; the moving end bracket is respectively fixedly connected to the upper clamping plate of the pole and the lower clamping plate of the pole;

[0008] An intermediate static contact and a closing static contact are provided on the upper clamping plate of the pole; the direct-acting contact is connected to the grounding static contact; and the grounding static contact is connected to the right side of the sealing plate.

[0009] Furthermore, heat dissipation holes are provided on the upper clamping plate of the pole; and the structure of the lower clamping plate of the pole is the same as that of the upper clamping plate of the pole.

[0010] Furthermore, the upper clamping plate of the pole and the lower clamping plate of the pole are respectively provided with an isolating switch installation interface.

[0011] Furthermore, the upper pole clamping plate and the lower pole clamping plate are both U-shaped structures.

[0012] Furthermore, the upper pole clamping plate and the lower pole clamping plate are integrally cast.

[0013] Furthermore, the pole upper clamping plate and the pole lower clamping plate are dark grey.

[0014] Furthermore, the upper pole clamping plate and the lower pole clamping plate are made of epoxy resin.

[0015] Furthermore, a first heat sink is provided on the top of the direct-moving contact; and a second heat sink is provided on the side of the intermediate static contact close to the closing static contact.

[0016] Furthermore, a third heat sink is provided on the outer side of the closing static contact.

[0017] Furthermore, the sealing plate is made of aluminum alloy.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides an open-type circuit breaker switch device, in which the isolating switch operating mechanism and the circuit breaker operating mechanism are both installed in coordination with each other on the left side of the cover plate, and the corresponding three switch assemblies are installed in coordination with each other on the right side of the cover plate. Such a distribution can simplify the efficiency of disassembly, assembly and replacement of the circuit breaker switch device, and the optimized position distribution makes the circuit breaker switch device simple as a whole and easy to be installed in coordination with other equipment; secondly, the switch assembly integrates the vacuum interrupter, the grounding static contact, the intermediate static contact and the closing static contact into an integrated assembly through the upper clamping plate of the pole and the lower clamping plate of the pole, thereby optimizing the assembly effect and making the overall installation more convenient and efficient; compared with some vacuum interrupters, the present application is openly arranged between the upper clamping plate of the pole and the lower clamping plate of the pole, directly exposing the vacuum interrupter to the internal insulating gas environment, thereby improving the heat exchange efficiency near the heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of an open type circuit breaker switch device provided by the utility model;

[0021] Figure 2 It is a structural diagram of the switch assembly;

[0022] Figure 3 yes Figure 1 The main view;

[0023] Figure 4 yes Figure 3 Schematic diagram of the middle part structure;

[0024] Figure 5 It is an existing circuit breaker switch device structural design;

[0025] In the figure: 1. Cover plate; 2. Disconnector operating mechanism; 3. Circuit breaker operating mechanism; 4. Switch assembly; 5. Pole upper clamping plate; 6. Pole lower clamping plate; 7. Vacuum interrupter; 8. Grounding static contact; 9. Intermediate static contact; 10. Closing static contact; 11. Direct-acting contact; 12. Insulating pull rod; 13. Static end bracket; 14. Moving end bracket; 15. Heat dissipation hole; 16. Disconnector installation interface; 17. First heat sink; 18. Second heat sink; 19. Third heat sink; 20. Flexible connection. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are not intended to limit the scope of protection of the present invention.

[0027] The present application aims to optimize the position allocation and installation of the existing disconnector operating mechanism 2, circuit breaker operating mechanism 3, vacuum interrupter 7, grounding static contact 8, intermediate static contact 9 and closing static contact 10. The remaining soft connections and conductive coordination operations between each other all adopt the existing actual coordination assembly machinery and electrical connection installation methods, which are not the focus of the technical solution design of this application, so they will not be described in detail here.

[0028] See Figures 1 to 4 This embodiment provides an open-type circuit breaker switchgear, comprising a switch assembly 4 and a cover plate 1. The isolating switch operating mechanism 2 and the circuit breaker operating mechanism 3 are mounted vertically on the left side of the cover plate 1. Correspondingly, three switch assemblies 4 are mounted on the right side of the cover plate 1. The cover plate 1 in this embodiment is made of aluminum alloy.

[0029] like Figures 2 to 4 The switch assembly 4 includes an upper pole clamping plate 5, a lower pole clamping plate 6, a vacuum interrupter 7, a grounding static contact 8, an intermediate static contact 9, and a closing static contact 10, all installed together to optimize space distribution and improve installation efficiency. A direct-acting contact 11 is installed on top of the intermediate static contact 9.

[0030] like Figure 3The upper pole clamping plate 5 and the lower pole clamping plate 6 are arranged vertically and spaced apart on the right side of the sealing plate 1. The vacuum interrupter 7 is installed between the upper pole clamping plate 5 and the lower pole clamping plate 6. Compared with the existing vacuum interrupter 7, the vacuum interrupter 7 is openly arranged to increase the contact area between the vacuum interrupter 7 and the air, which is beneficial to improving the heat dissipation effect of the vacuum interrupter 7.

[0031] The static end of the empty arc extinguishing chamber is equipped with a static end bracket 13. The upper and lower ends of the static end bracket 13 are fixedly connected to the upper clamping plate 5 and the lower clamping plate 6 of the pole respectively. Figure 4 The soft connection 20 and the conductive clip are installed on the moving end bracket 14 and interact with the vacuum interrupter 7 and other components according to actual installation.

[0032] The moving end of the vacuum interrupter 7 is equipped with a moving end bracket 14. The insulating pull rod 12 is connected to the vacuum interrupter 7 through the moving end bracket 14. The upper and lower ends of the moving end bracket 14 are fixedly connected to the upper clamping plate 5 of the pole and the lower clamping plate 6 of the pole respectively. The moving end bracket 14 and the static end bracket 13 are installed on both sides of the vacuum interrupter 7, providing stable support for the mutual connection between the upper clamping plate 5 of the pole and the lower clamping plate 6 of the pole, thereby improving the safety of the installation of the vacuum interrupter 7. The intermediate static contact 9 and the closing static contact 10 are installed from left to right above the upper clamping plate 5 of the pole. The grounding static contact 8 is installed on the right side of the sealing plate 1 and is connected to the direct-acting contact 11. The moving end bracket 14 and the static end bracket 13 are fixedly assembled with the upper clamping plate 5 of the pole and the lower clamping plate 6 of the pole by studs. The moving end bracket 14 is also used to set the soft connection of the entire device.

[0033] Compared with the existing circuit breaker switch device, this embodiment separates the isolating switch operating mechanism 2 and the circuit breaker operating machine on the left side of the cover plate 1, and the switch assembly 4 including components such as the vacuum interrupter 7, the grounding static contact 8, the intermediate static contact 9 and the closing static contact 10 is installed as a whole on the right side of the cover plate 1, which is beneficial to the production and installation efficiency.

[0034] In some embodiments, the lower pole plate 6 has the same structure as the upper pole plate 5. Heat dissipation holes 15 are provided on the upper pole plate 5 and the lower pole plate 6, respectively, to improve the heat dissipation effect of the vacuum interrupter 7 mounted between the lower pole plate 6 and the upper pole plate 5, thereby improving the overall operating efficiency of the open-type circuit breaker switchgear.

[0035] Optionally, an isolating switch installation interface 16 is reserved on each of the upper and lower pole plates 5 and 6, allowing the three-position isolating switch to be directly connected to the circuit breaker switch, achieving an integrated design of all core components and improving the efficiency and yield rate of production and installation. Specifically, in existing usage, the insulating screw is connected to the three-position isolating switch. When the mechanism is electrically or manually operated, the insulating screw rotates, driving the direct-acting contact 11 to move forward and backward in a straight line, respectively, to close the main circuit grounding switch, open the isolating switch (at this time, the grounding switch is closed), and close the isolating switch.

[0036] Optionally, both the upper and lower pole plates 5 and 6 are configured as U-shaped structures. This configuration encloses the vacuum interrupter 7 between the upper and lower pole plates 5 and 6, preventing external collisions during installation and transportation, thereby increasing the service life of the vacuum interrupter 7. Furthermore, both the upper and lower pole plates 5 and 6 are integrally cast, resulting in a simple structure and ease of manufacture.

[0037] During the production of the pole upper clamping plate 5 and the pole lower clamping plate 6, the pole upper clamping plate 5 and the pole lower clamping plate 6 made of epoxy resin material are produced in dark gray, which is beneficial to improving the ability of the pole upper clamping plate 5 and the pole lower clamping plate 6 to absorb the heat energy radiated by the vacuum interrupter 7.

[0038] Optional, such as Figure 3 A first heat sink 17 is installed on the top of the direct-acting contact 11, and a second heat sink 18 is installed on the side of the intermediate static contact 9 near the closing static contact 10. A third heat sink 19 is installed on the outer side of the closing static contact 10. The first heat sink 17, second heat sink 18, and third heat sink 19 respectively accelerate the heat dissipation of the direct-acting contact 11, intermediate static contact 9, and closing static contact 10 during operation, thereby improving work efficiency.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An open type circuit breaker switch device, characterized in that: It includes a switch assembly and a cover plate; the left side of the cover plate is provided with an isolating switch operating mechanism and a circuit breaker operating mechanism, and the right side is provided with the three switch assemblies; Therefore, the switch assembly includes an upper clamping plate of the pole, a lower clamping plate of the pole, a vacuum interrupter, a grounding static contact, an intermediate static contact and a closing static contact; a direct-acting contact is provided above the intermediate static contact; the upper clamping plate of the pole and the lower clamping plate of the pole are spaced apart and arranged on the right side of the sealing plate; the vacuum interrupter is provided between the upper clamping plate of the pole and the lower clamping plate of the pole; the static end of the vacuum interrupter is provided with a static end bracket; the static end bracket is respectively fixedly connected to the upper clamping plate of the pole and the lower clamping plate of the pole; the moving end of the vacuum interrupter is provided with a moving end bracket; the insulating pull rod is connected to the vacuum interrupter through the moving end bracket; the moving end bracket is respectively fixedly connected to the upper clamping plate of the pole and the lower clamping plate of the pole; An intermediate static contact and a closing static contact are provided on the upper clamping plate of the pole; the direct-acting contact is connected to the grounding static contact; and the grounding static contact is connected to the right side of the sealing plate.

2. The open type circuit breaker switch device according to claim 1, characterized in that: The upper clamping plate of the pole is provided with heat dissipation holes; the lower clamping plate of the pole has the same structure as the upper clamping plate of the pole.

3. The open type circuit breaker switch device according to claim 2, characterized in that: The upper clamping plate of the pole and the lower clamping plate of the pole are respectively provided with an isolating switch installation interface.

4. The open type circuit breaker switch device according to claim 3, characterized in that: The pole upper clamping plate and the pole lower clamping plate are both U-shaped structures.

5. The open type circuit breaker switch device according to claim 4, characterized in that: The upper pole clamping plate and the lower pole clamping plate are both integrally cast.

6. The open type circuit breaker switch device according to claim 1 or 5, characterized in that: The pole upper clamping plate and the pole lower clamping plate are dark grey.

7. The open type circuit breaker switch device according to claim 1, characterized in that: The upper pole clamping plate and the lower pole clamping plate are made of epoxy resin.

8. The open type circuit breaker switch device according to claim 1, characterized in that: A first heat sink is provided on the top of the direct-moving contact; a second heat sink is provided on the side of the intermediate static contact close to the closing static contact.

9. The open type circuit breaker switch device according to claim 8, characterized in that: A third heat sink is provided on the outer side of the closing static contact.

10. The open type circuit breaker switch device according to claim 1, characterized in that: The sealing plate is made of aluminum alloy.

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