Circuit breaker easy to maintain

Abstract

The utility model relates to the field of circuit breakers, in particular to a circuit breaker easy to maintain. Comprising a circuit breaker shell; the plurality of limiting rings are horizontally arranged on the circuit breaker shell; the linkage rotating shaft is arranged in the plurality of limiting rings; the energy storage mechanism is arranged on the circuit breaker shell and is linked with the linkage rotating shaft; the contact system is matched with the linkage rotating shaft; wherein the limiting ring is of an omega-shaped structure and is fixed on the circuit breaker shell through a fastener; according to the utility model, the detachable linkage rotating shaft is arranged on the circuit breaker shell, when the linkage rotating shaft or the energy storage mechanism is damaged to lose working capability and needs to be replaced, the limiting ring is detached, and then the linkage rotating shaft is replaced, so that the replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to an easily maintainable circuit breaker. Background Art

[0002] A circuit breaker is a mechanical switching device that can connect, carry and disconnect current under normal circuit conditions, and can also connect, carry for a certain time and disconnect current under specified abnormal circuit conditions.

[0003] The linkage shaft and contact system of the old molded case circuit breakers are integrated and not easy to disassemble. The conditions of these circuit breakers themselves prevent users from better experiencing the convenience brought by intelligence and cannot keep up with customer needs. In addition, the reliability of the accessories is not high, and problems are prone to occur, which brings some adverse effects to users). The degree of intelligence is not high and the protection performance is not perfect. It is difficult for the old molded case circuit breakers to complete the rapid development of intelligent and networked products.

[0004] Therefore, there is an urgent need to provide an improved technical solution to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a technical effect of facilitating the maintenance and replacement of the linkage rotating shaft in view of the above-mentioned existing technical problems.

[0006] In view of this, the utility model provides an easily maintainable circuit breaker, which is characterized by comprising:

[0007] Circuit breaker housing;

[0008] A plurality of limiting rings, wherein the plurality of limiting rings are horizontally arranged on the circuit breaker housing;

[0009] A linkage rotating shaft, wherein the linkage rotating shaft is arranged in a plurality of limit rings;

[0010] An energy storage mechanism, which is mounted on the circuit breaker housing and is linked to the linkage shaft;

[0011] A contact system, the contact system cooperates with a linkage shaft;

[0012] The limiting ring is an Ω-shaped structure and is fixed to the circuit breaker housing by fasteners.

[0013] Furthermore, the linkage shaft is installed on the energy storage mechanism.

[0014] Furthermore, it also includes:

[0015] Intelligent controller,Intelligent controller is used to control and protect the power distribution network.

[0016] Furthermore, it also includes:

[0017] The motor is arranged on the circuit breaker housing and is used to adjust the energy storage mechanism to an energy storage state.

[0018] Furthermore, it also includes:

[0019] A manual energy storage handle is provided on the energy storage mechanism and is used to adjust the energy storage mechanism to an energy storage state.

[0020] The beneficial effects of the utility model are:

[0021] 1. The utility model installs a detachable linkage shaft on the circuit breaker housing. When the linkage shaft or the energy storage mechanism loses its working ability due to damage and needs to be replaced, the limit ring is removed and the linkage shaft is replaced, thereby reducing the replacement cost.

[0022] 2. The utility model installs the linkage shaft on the energy storage mechanism, and the linkage shaft is directly installed on the energy storage mechanism. When installing, the linkage shaft can be installed on the energy storage mechanism first and then installed. The energy storage mechanism is first fixed on the circuit breaker housing to achieve fixation, and then the linkage shaft is fixed and limited by a limit ring. Through the technology of preferentially installing the linkage shaft, the installation of the linkage shaft can be more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of another direction of the utility model;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of area A in the middle.

[0026] The symbols in the figure are:

[0027] 1. Circuit breaker housing; 2. Limiting ring; 3. Linkage shaft; 4. Energy storage mechanism; 5. Contact system; 7. Intelligent controller; 8. Motor; 9. Manual energy storage handle; 10. Arc extinguishing chamber. Specific embodiments

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0029] Embodiment 1:

[0030] This embodiment provides an easily maintainable circuit breaker, which is characterized by comprising:

[0031] Circuit breaker housing 1;

[0032] A plurality of limiting rings 2, wherein the plurality of limiting rings 2 are horizontally arranged on the circuit breaker housing 1;

[0033] A linkage shaft 3, wherein the linkage shaft 3 is arranged in a plurality of limit rings 2;

[0034] An energy storage mechanism 4, which is mounted on the circuit breaker housing 1 and is linked to the linkage shaft 3;

[0035] The contact system 5 cooperates with the linkage shaft 3;

[0036] The limiting ring 2 is an Ω-shaped structure and is fixed to the circuit breaker housing 1 by fasteners.

[0037] The circuit breaker housing 1 is a square structure, and the front end face of the circuit breaker housing 1 is a mounting surface. The energy storage mechanism 4 is a prior art. The energy storage mechanism 4 can compress the energy storage spring to give it corresponding potential energy. The energy storage spring is inside the energy storage mechanism. When closing or opening the circuit breaker, after the switch is pulled (pressing the corresponding button), the energy storage spring quickly closes or separates the moving contact of the circuit breaker. Its main purpose is to reduce the arc existence time of closing or opening the circuit breaker, so as to achieve the purpose of rapid arc extinguishing (quick closing of the circuit breaker), and the energy storage device can pre-store energy. When opening or closing the circuit breaker is required, the energy storage device releases energy. After releasing energy, pre-storage can be performed manually or electrically.

[0038] The linkage shaft 3 is a linkage mechanism used to coordinate the contact system 5 with the energy storage mechanism.

[0039] The limiting ring 2 is an Ω-shaped structure, and the two ends of the limiting ring 2 are plate-shaped. Bolts penetrate the plate-shaped structure, and the linkage shaft 3 is first installed in all the limiting rings 2 and then fixed on the circuit breaker housing 1.

[0040] By detachably mounting the linkage shaft 3 on the circuit breaker housing 1 , when the linkage shaft 3 loses its working ability due to damage and needs to be replaced, the limit ring 2 is removed and then the linkage shaft 3 is replaced, thereby reducing replacement costs.

[0041] Embodiment 2:

[0042] This embodiment provides an easily maintainable circuit breaker, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] The linkage rotating shaft 3 is installed on the energy storage mechanism 4 .

[0044] The linkage shaft 3 is installed on the energy storage mechanism 4. The linkage shaft 3 is directly installed on the energy storage mechanism 4. When installing, the linkage shaft 3 can be installed on the energy storage mechanism 4 first and then installed. The energy storage mechanism 4 is first fixed on the circuit breaker housing 1 to achieve fixation, and then the linkage shaft 3 is fixed and limited by the limit ring 2. Through the technology of preferentially installing the linkage shaft 3, the installation of the linkage shaft 3 can be more convenient.

[0045] Also includes:

[0046] The intelligent controller 7 is used to control and protect the power distribution network.

[0047] The intelligent controller 7 is composed of three basic modules: data acquisition, intelligent identification and adjustment device. The intelligent identification module is the core of the intelligent control unit. The microcomputer control system composed of a microprocessor can automatically identify the state of the electrical equipment under the control of the circuit breaker according to the grid information collected before the operation and the operation signal sent by the main control room, protect the normal operation of the electrical equipment, determine the appropriate opening and closing movement characteristics according to the results of the circuit breaker simulation analysis, and send adjustment information to the actuator, and send the opening and closing signal after the adjustment is completed; the data acquisition module is mainly composed of new sensors, which provide the data of the electrical equipment in the form of digital signals to the intelligent identification module at any time for processing and analysis; the actuator is composed of components that can receive quantitative control information and drive actuators, which are used to adjust the parameters of the operating mechanism so as to change the movement characteristics during each operation. In addition, display modules, communication modules and various detection modules can be added as needed to expand the intelligent functions of the intelligent operation circuit breaker; the circuit breaker can be diagnosed and maintained, such as detecting the wear of the contacts and measuring the current size.

[0048] The intelligent controller 7 is provided with a display screen, through which the current state of the circuit breaker can be intuitively reflected.

[0049] Embodiment 3:

[0050] This embodiment provides an easily maintainable circuit breaker, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] Also includes:

[0052] The motor 8 is arranged on the circuit breaker housing 1 and is used to adjust the energy storage mechanism 4 to an energy storage state.

[0053] The output end of the motor 8 is connected to the energy storage shaft of the energy storage mechanism 4 through a coupling, and the motor 8 is used to drive the shaft of the energy storage mechanism 4 to rotate and store energy without manual operation, thereby realizing automatic energy storage of the energy storage mechanism 4, and the motor 8 can be controlled by the intelligent controller 7, and the motor 8 is powered by an external power supply.

[0054] Also includes:

[0055] The manual energy storage handle 9 is arranged on the energy storage mechanism 4 and is used to adjust the energy storage mechanism 4 to the energy storage state.

[0056] By providing a manual energy storage handle 9 connected to the energy storage shaft of the energy storage mechanism 4, the shaft can be rotated manually to store energy, and when the motor 8 is damaged, the manual energy storage handle 9 can be used as an emergency measure.

[0057] The arc extinguishing chamber 10 is also included. The arc extinguishing chamber 10 is arranged on the upper end surface of the circuit breaker housing 1. The arc extinguishing chamber 10 includes a housing, grids and an arc extinguishing cover. A plurality of grids are arrayed inside a housing. The arc extinguishing cover is arranged on the top of the arc extinguishing chamber 10. When a strong current is interrupted, a large amount of high-temperature and high-pressure ionized gas will be generated along with the arc burning. These gases are quickly cooled, compounded, and deionized inside the arc extinguishing chamber 10 of the phase and are discharged from the arc extinguishing chamber 10 in time to prevent leakage through the surrounding gaps to the adjacent phase or contact with the grounded metal outside the circuit breaker. Otherwise, it will cause phase-to-phase and ground short-circuit faults, the arc cannot be extinguished, and the breaking failure occurs.

[0058] The circuit breaker also includes an auxiliary switch, which is arranged on the circuit breaker housing 1 and cooperates with the contact system 5 .

[0059] The auxiliary switch is set on the circuit breaker housing 1. The auxiliary switch controls the state of the branch electrical equipment through the state of the main switch. The circuit breaker connects the circuit breaker mechanism closing and tripping control circuit and the sound signal circuit by changing the opening and closing positions of the auxiliary contacts (contacts) driven by itself, so as to achieve the purpose of disconnecting or closing the circuit of the circuit breaker, and can correctly send out sound signals, start devices and protection lock circuits, etc. When the auxiliary contacts of the circuit breaker are used for closing and tripping on the same circuit, they should be delayed.

[0060] The auxiliary switch is provided with a plurality of auxiliary contacts.

[0061] Used to control the status of multiple electrical devices.

[0062] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which belong to the protection scope of the present application.

Claims

1. An easily maintainable circuit breaker, characterized in that: include: Circuit breaker housing (1); A plurality of limiting rings (2), wherein the plurality of limiting rings (2) are horizontally arranged on the circuit breaker housing (1); A linkage rotating shaft (3), wherein the linkage rotating shaft (3) is arranged in a plurality of limiting rings (2); An energy storage mechanism (4), the energy storage mechanism (4) is mounted on the circuit breaker housing (1) and is linked to the linkage shaft (3); A contact system (5), the contact system (5) cooperates with the linkage shaft (3); The limiting ring (2) is an Ω-shaped structure and is fixed to the circuit breaker housing (1) by means of fasteners.

2. The easily maintainable circuit breaker according to claim 1, characterized in that: The linkage rotating shaft (3) is mounted on the energy storage mechanism (4).

3. The easily maintainable circuit breaker according to claim 1, characterized in that: Also includes: An intelligent controller (7) is used to control and protect a power distribution network.

4. An easily maintainable circuit breaker according to claim 1 or 3, characterized in that: Also includes: The electric motor (8) is arranged on the circuit breaker housing (1) and is used to adjust the energy storage mechanism (4) to an energy storage state.

5. An easily maintainable circuit breaker according to claim 1 or 4, characterized in that: Also includes: A manual energy storage handle (9) is arranged on the energy storage mechanism (4) and is used to adjust the energy storage mechanism (4) to an energy storage state.

6. The easily maintainable circuit breaker according to claim 1, characterized in that: Also includes: An auxiliary switch is arranged on the circuit breaker housing (1) and cooperates with the contact system (5).

7. The easily maintainable circuit breaker according to claim 6, characterized in that: The auxiliary switch is provided with a plurality of auxiliary contacts.

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