Outdoor pole-mounted solid-sealed primary and secondary fusion permanent magnet vacuum circuit breaker

Abstract

The utility model relates to the technical field of vacuum circuit breakers, and discloses an outdoor pole-mounted solid-sealed primary and secondary fusion permanent magnet vacuum circuit breaker, which comprises a base, a protective shell is arranged on the base, and the protective shell is fixedly connected with the base; the circuit breaker assembly is arranged in the base and the protective shell, the circuit breaker assembly is used for protecting a circuit, the circuit breaker assembly internally comprises an installation frame, a first arc extinguish chamber and a second arc extinguish chamber, the installation frame is arranged on the base and fixedly connected with the base, and the second arc extinguish chamber is elastically connected with the installation frame. The first arc extinguish chamber is fixedly connected with the second arc extinguish chamber, the first arc extinguish chamber is fixedly connected with the mounting rack, the first arc extinguish chamber and the second arc extinguish chamber are respectively arranged, the first arc extinguish chamber and the second arc extinguish chamber are connected in series, and after the first arc extinguish chamber is damaged, the second arc extinguish chamber can be used for transient supporting operation; the vacuum circuit breaker assembly is prevented from being thoroughly paralyzed after being damaged, and damage to the whole circuit is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum circuit breaker technology, specifically, it relates to an outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker. Background Technology

[0002] A document with publication number (CN207834190U) discloses an outdoor pole-mounted solid-sealed primary and secondary fusion permanent magnet vacuum circuit breaker. The upper end of the chassis is connected to three integrated solid-sealed conductive posts. Each integrated solid-sealed conductive post contains an electronic current transformer and an electronic voltage transformer. The chassis contains a main shaft, supports, connecting plates, pins, a manual closing mechanism, an adjusting mechanism, a permanent magnet mechanism, and a manual tripping device. There are three supports, connecting plates, and pins. The supports are welded inside the chassis, and each support is connected to a connecting plate via a pin. All three supports are slidably connected to the main shaft. The main shaft is connected to the manual closing mechanism via the adjusting mechanism. The main shaft is also connected to the output end of the permanent magnet mechanism, which cooperates with the manual tripping device.

[0003] In order to reduce the overall size of the vacuum circuit breaker, the above-mentioned device encapsulates the electronic current transformer and the electronic voltage transformer together in an integrated solid-sealed conductive electrode post. By using a scientific and reasonable arrangement and technological transformation, the electronic current transformer and the electronic voltage transformer are miniaturized. Because the electronic current transformer and the electronic voltage transformer are miniaturized and encapsulated in an integrated solid-sealed conductive electrode post, the service life is greatly improved and the manufacturing cost is reduced.

[0004] The aforementioned device, while miniaturizing the components inside the circuit breaker, does not provide support or buffering for the vacuum circuit breaker. Furthermore, the device is exposed and cannot effectively protect against the external environment. When wild animals such as squirrels climb onto the vacuum circuit breaker, they can damage the internal components. Existing vacuum circuit breakers are connected in series, so if one arc-extinguishing chamber fails, the entire vacuum circuit breaker will cease to function, and the circuit will also be damaged.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problems of vacuum circuit breaker protection, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker includes a base, a protective shell mounted on the base and fixedly connected to the base; and a circuit breaker assembly disposed within the base and the protective shell. The circuit breaker assembly is used to protect the circuit and includes a mounting bracket, a first arc-extinguishing chamber, and a second arc-extinguishing chamber. The mounting bracket is mounted on the base and fixedly connected to the base. The second arc-extinguishing chamber is elastically connected to the mounting bracket. The first arc-extinguishing chamber is fixedly connected to the second arc-extinguishing chamber and the mounting bracket.

[0008] In a preferred embodiment of this utility model, the end of the base and the side wall of the protective shell are provided with through grooves, and the protective shell is fixedly connected to the mounting bracket.

[0009] In a preferred embodiment of this utility model, a fan is arranged in an array inside the base, and the fan is fixedly connected to the base.

[0010] In a preferred embodiment of the present invention, the circuit breaker assembly further includes a bracket, one end of which is rotatably connected to the mounting frame, the other end of which abuts against the mounting frame, and the second arc-extinguishing chamber is elastically connected to the bracket.

[0011] In a preferred embodiment of this utility model, a support rod is provided on the bracket, the support rod is fixedly connected to the bracket, and the second arc-extinguishing chamber is elastically connected to the support rod.

[0012] In a preferred embodiment of the present invention, the first arc-extinguishing chamber and the second arc-extinguishing chamber are arranged in an array on the mounting frame, and a baffle is provided between the first arc-extinguishing chamber and the second arc-extinguishing chamber, and the baffle is fixedly connected to the mounting frame.

[0013] In a preferred embodiment of this utility model, a spring is provided between the support rod and the spring, one end of the spring is fixedly connected to the second arc-extinguishing chamber, the other end of the spring abuts against the bracket, and the second arc-extinguishing chamber is slidably connected to the support rod.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. This outdoor pole-mounted solid-sealed primary and secondary fusion permanent magnet vacuum circuit breaker has a first arc-extinguishing chamber and a second arc-extinguishing chamber respectively, and the first arc-extinguishing chamber and the second arc-extinguishing chamber are connected in series. After the first arc-extinguishing chamber is damaged, it can still rely on the second arc-extinguishing chamber for short-term support operation, so as to avoid complete paralysis after the vacuum circuit breaker components are damaged and reduce the damage to the entire circuit.

[0016] 2. This type of outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker uses a base and protective shell to shield the vacuum circuit breaker from animals, thus preventing damage to the circuit breaker by wild animals.

[0017] 3. This type of outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker has a fan inside the base that dissipates the heat generated by the vacuum circuit breaker component during operation through the through slot, thereby preventing heat accumulation after long-term operation and avoiding the device from breaking the circuit due to high temperature.

[0018] 4. In this type of outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker, the forces of the first and second arc-extinguishing chambers are applied to the bracket and the spring. The spring is deformed by the pressure, and the deformation of the spring generates an upward force. The spring supports the second arc-extinguishing chamber through the force generated.

[0019] 5. This type of outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker has a triangular structure formed between the bracket and the mounting frame, which provides secondary support for the first and second arc-extinguishing chambers.

[0020] 6. In this type of outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker, when the first and second arc-extinguishing chambers need maintenance, the bracket is manually flipped over, and the first and second arc-extinguishing chambers are flipped and taken out from the mounting bracket, which facilitates the maintenance and replacement of the first and second arc-extinguishing chambers.

[0021] 7. This outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker uses a baffle to block the first and second arc-extinguishing chambers, so as to prevent secondary damage to the surrounding first and second arc-extinguishing chambers after the first and second arc-extinguishing chambers are damaged.

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0023] In the attached diagram:

[0024] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the vacuum circuit breaker structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the mounting frame structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the base of this utility model;

[0028] Figure 5 This is a schematic diagram of the bottom structure of the arc-extinguishing chamber of this utility model.

[0029] In the diagram: 1. Base; 11. Protective shell; 12. Fan; 2. Mounting bracket; 21. First arc-extinguishing chamber; 22. Second arc-extinguishing chamber; 3. Baffle; 4. Bracket; 41. Support rod; 42. Spring. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0031] Please see Figure 1-5 An outdoor pole-mounted fixed-seal primary and secondary fusion permanent magnet vacuum circuit breaker includes a base 1, a protective shell 11 on the base 1, and a circuit breaker assembly disposed within the base 1 and the protective shell 11. The circuit breaker assembly is used to protect the circuit and includes a mounting frame 2, a first arc-extinguishing chamber 21, and a second arc-extinguishing chamber 22. The mounting frame 2 is disposed on the base 1 and is fixedly connected to the base 1. The second arc-extinguishing chamber 22 is elastically connected to the mounting frame 2. The first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are fixedly connected. The first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are respectively disposed and connected in series. After the first arc-extinguishing chamber 21 is damaged, it can still rely on the second arc-extinguishing chamber 22 for temporary support operation, avoiding complete paralysis after the vacuum circuit breaker assembly is damaged, and reducing damage to the entire circuit.

[0032] The base 1 has a through groove at its end and the side wall of the protective shell 11. The protective shell 11 is fixedly connected to the mounting bracket 2. Fans 12 are arranged in an array inside the base 1 and are fixedly connected to the base 1. The base 1 and the protective shell 11 are set outside the vacuum circuit breaker assembly. The base 1 and the protective shell 11 shield the vacuum circuit breaker from animals and prevent wild animals from damaging it. At the same time, the fans 12 inside the base 1 dissipate the heat generated by the vacuum circuit breaker assembly during operation through the through groove, thereby preventing heat buildup after long-term operation and avoiding the device from tripping due to high temperature.

[0033] The circuit breaker assembly also includes a bracket 4, one end of which is rotatably connected to the mounting frame 2, and the other end of which abuts against the mounting frame 2. A second arc-extinguishing chamber 22 is elastically connected to the bracket 4. A support rod 41 is mounted on the bracket 4 and is fixedly connected to the bracket 4. The second arc-extinguishing chamber 22 is elastically connected to the support rod 41. A spring 42 is positioned between the support rod 41 and the spring 42. One end of the spring 42 is fixedly connected to the second arc-extinguishing chamber 22, and the other end abuts against the bracket 4. The second arc-extinguishing chamber 22 is slidably connected to the support rod 41. Simultaneously, forces are applied between the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22. On the bracket 4 and the spring 42, the spring 42 deforms under pressure, and the deformation of the spring 42 generates an upward force. The spring 42 supports the second arc-extinguishing chamber 22 through the force generated. The bracket 4 and the mounting frame 2 form a triangular structure, which provides secondary support for the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22. When the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 need maintenance, the bracket 4 is manually flipped over. After the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are flipped over, they are flipped off the mounting frame 2 for easy maintenance and replacement.

[0034] The first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are arranged in an array on the mounting frame 2. A baffle 3 is provided between the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22. The baffle 3 is fixedly connected to the mounting frame 2. The baffle 3 blocks the space between the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 to prevent secondary damage to the surrounding first arc-extinguishing chambers 21 and the second arc-extinguishing chamber 22 after the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are damaged.

[0035] Working principle: The base 1 and protective shell 11 are set outside the vacuum circuit breaker assembly. The base 1 and protective shell 11 shield the vacuum circuit breaker from external animals, preventing damage from wild animals. At the same time, the fan 12 inside the base 1 dissipates the heat generated by the vacuum circuit breaker assembly during operation through the through slot, thus preventing heat accumulation after prolonged operation and avoiding overheating-induced circuit breaking. The first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are respectively set and connected in series. After the first arc-extinguishing chamber 21 is damaged, the second arc-extinguishing chamber 22 can provide temporary support, preventing complete failure of the vacuum circuit breaker assembly and reducing the risk of damage. Damage to the entire circuit is caused by the force exerted on the support 4 and the spring 42 by the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22. The spring 42 deforms under pressure, generating an upward force. The spring 42 supports the second arc-extinguishing chamber 22 through this force. A triangular structure is formed between the support 4 and the mounting bracket 2, which provides secondary support for the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22. When the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 need maintenance, the support 4 is manually flipped over. After flipping, the first arc-extinguishing chamber 21 and the second arc-extinguishing chamber 22 are flipped off the mounting bracket 2, making it easy to repair and replace them.

[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An outdoor pole-mounted fixed-seal primary and secondary integrated permanent magnet vacuum circuit breaker, characterized in that, include: A base (1) is provided on the base (1), and a protective shell (11) is fixedly connected to the base (1); The circuit breaker assembly is disposed within the base (1) and the protective shell (11). The circuit breaker assembly is used to protect the circuit. The circuit breaker assembly includes a mounting bracket (2), a first arc-extinguishing chamber (21), and a second arc-extinguishing chamber (22). The mounting bracket (2) is disposed on the base (1) and is fixedly connected to the base (1). The second arc-extinguishing chamber (22) is elastically connected to the mounting bracket (2). The first arc-extinguishing chamber (21) is fixedly connected to the second arc-extinguishing chamber (22). The first arc-extinguishing chamber (21) is fixedly connected to the mounting bracket (2).

2. The outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 1, characterized in that, The end of the base (1) and the side wall of the protective shell (11) are provided with through grooves, and the protective shell (11) is fixedly connected to the mounting bracket (2).

3. The outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 1, characterized in that, The base (1) is equipped with an array of fans (12), which are fixedly connected to the base (1).

4. The outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 1, characterized in that, The circuit breaker assembly also includes a bracket (4), one end of which is rotatably connected to the mounting bracket (2), and the other end of which abuts against the mounting bracket (2). The second arc-extinguishing chamber (22) is elastically connected to the bracket (4).

5. The outdoor pole-mounted fixed-seal primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 4, characterized in that, The bracket (4) is provided with a support rod (41), which is fixedly connected to the bracket (4), and the second arc-extinguishing chamber (22) is elastically connected to the support rod (41).

6. The outdoor pole-mounted solid-sealed primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 1, characterized in that, The first arc-extinguishing chamber (21) and the second arc-extinguishing chamber (22) are arranged in an array on the mounting frame (2). A baffle (3) is provided between the first arc-extinguishing chamber (21) and the second arc-extinguishing chamber (22), and the baffle (3) is fixedly connected to the mounting frame (2).

7. The outdoor pole-mounted fixed-seal primary and secondary integrated permanent magnet vacuum circuit breaker according to claim 5, characterized in that, A spring (42) is provided between the support rod (41) and the spring (42). One end of the spring (42) is fixedly connected to the second arc-extinguishing chamber (22), and the other end of the spring (42) abuts against the bracket (4). The second arc-extinguishing chamber (22) is slidably connected to the support rod (41).

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