Circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker, which comprises a control module, an adapter plate, a seat plate and a main loop conductor, a control circuit board is fixedly arranged in the control module, a switch blade, an electromagnetic release and an operating mechanism are fixedly arranged in the seat plate, and the adapter plate is positioned between the adapter plate and the control module. The control module and the bottom plate are connected through the adapter plate, the main loop conductor is electrically connected with a temperature sensing element, the temperature sensing element triggers the control module after the main loop conductor is overloaded, the control module drives the electromagnetic tripper to work, and the electromagnetic tripper controls the switch blade to perform opening operation through the operating mechanism. The whole circuit breaker is divided into the control module, the adapter plate and the seat plate, and the adapter plate and the control module are independently arranged and are connected in a plugging manner, so that when the control circuit board of the circuit breaker needs to be replaced or taken down, only the control module needs to be taken down independently, and the whole product does not need to be completely disassembled for back production and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a 2P intelligent circuit breaker. Background Art

[0002] As a common low-voltage electrical power distribution switch, the molded case circuit breaker is often used in various occasions. The existing molded case circuit breakers are divided into thermal-magnetic molded case circuit breakers and electronic molded case circuit breakers according to their tripping methods.

[0003] For an electronic molded case circuit breaker, its overload protection is achieved by triggering the program of the main circuit board for function protection. The base and the upper cover of the existing electronic molded case circuit breaker are integrally arranged. When the control circuit board needs to be program-updated or replaced due to use or on-site environmental problems, the control circuit board often needs the whole product to be returned to the factory for replacement because it is built into the product. Therefore, an intelligent circuit breaker needs to be designed. Summary of the Invention

[0004] The main purpose of the utility model is to overcome the deficiencies in the prior art and provide a circuit breaker.

[0005] The technical solution adopted by the utility model to achieve its technical purpose is: a circuit breaker, comprising:

[0006] A control module, in which a control circuit board is fixedly arranged; conventional related circuit programs are integrally arranged in the control circuit board to achieve the use purpose of the control module.

[0007] A seat plate, in which a switch blade, an electromagnetic release and an operating mechanism are fixedly arranged; the electromagnetic release is magnetically connected to the operating mechanism, and when the electromagnetic release works, it drives the switch blade to trip through the operating mechanism.

[0008] An adapter plate, which is located between the adapter plate and the control module, and is used to connect the control module and the seat plate; through the setting of the adapter plate, the installation of the control module and the seat plate is facilitated. The adapter plate is fixed on one side of the seat plate by screws, and the control module is directly plugged and connected to one side of the adapter plate.

[0009] A main circuit conductor, which is electrically connected with a temperature-sensitive element, and the temperature-sensitive element senses the temperature of the main circuit conductor; the main circuit conductor is a conductor with both ends connected, and the two ends are used for connecting to external circuits.

[0010] The temperature-sensitive element is electrically connected to the control module, and after the main circuit conductor is overloaded, the temperature-sensitive element triggers the control module; the temperature-sensitive element is a temperature sensor, which can monitor the temperature on the main circuit conductor. Once the main circuit conductor is overloaded, it sends a signal to the control module;

[0011] The control module is electrically connected to the electromagnetic release. After triggering the preset program logic command in its control circuit board, the control module drives the electromagnetic release to operate;

[0012] When the electromagnetic release operates, it triggers the operating mechanism, and the switching blade is controlled to trip through the operating mechanism.

[0013] Preferably, the operating mechanism is set as a traction rod. The traction rod controls the switching blade to trip under the drive of the electromagnetic release; once the overall current of the circuit breaker is overloaded, the magnetic release is magnetized, and the magnetic release drives the traction rod to act according to its own magnetic characteristics, and drives the switching blade to trip through the traction rod.

[0014] Preferably, the control module is set as an independent module, and a control panel is also arranged inside it. The control module is plugged and connected to the adapter board. The control panel of the control module can be used to set the protection temperature, and its plugging and connecting method can be selected as an interference fit connection method, which can be directly plugged and replaced during the operation or maintenance of the circuit breaker.

[0015] Preferably, the temperature sensing element is fixedly located on the housing of the circuit breaker or on the main circuit conductor. The housing of the circuit breaker includes the housings of the control module, the adapter board and the base plate.

[0016] Preferably, the circuit breaker is an intelligent circuit breaker, and the number of poles of the circuit breaker is 2P. A wireless communication module is arranged on the control circuit board of the control module; through the wireless communication module, the circuit breaker has the characteristics of remote tripping, carrier wave, remote signaling, remote remote adjustment, etc., so that the circuit breaker is an intelligent circuit breaker.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The overall circuit breaker is divided into three parts: a control module, an adapter board and a base plate. Through the independent setting of the adapter board and the control module itself, and the plugging and connecting between the two, when the control circuit board of the circuit breaker needs to be replaced or removed, only the control module needs to be removed separately, and the whole product does not need to be completely disassembled and returned to the factory for replacement. Not only is the control circuit board replacement convenient, but also the utilization rate of other components of the circuit breaker is improved, and the cost is saved. Brief Description of the Drawings

[0019] Figure 1 It is a schematic three-dimensional structure diagram of the overall circuit breaker.

[0020] Figure 2 It is a schematic three-dimensional structure diagram of the base plate of the circuit breaker and its internal components.

[0021] Wherein:

[0022] 1 - Control module; 101 - Control panel; 2 - Adapter board; 3 - Base board; 301 - Switch blade; 302 - Electromagnetic release; 303 - Operating mechanism; 304 - Traction rod; 4 - Main circuit conductor. Detailed implementation

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] To make the purpose, technical solution and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and do not limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model. Embodiment

[0026] Please refer to Figure 1-2 , a circuit breaker, including a control module 1, an adapter board 2, a base board 3, a main circuit conductor 4 and a temperature sensing element.

[0027] A control circuit board is fixedly arranged inside the control module 1; a conventional related circuit program is integrated inside the control circuit board to achieve the purpose of using the control module 1. The control module 1 is set as an independent module, and a control panel 101 is also arranged inside it. The control module 1 is pluggably connected to the adapter board 2. The control panel 101 of the control module 1 can be used to set the protection temperature, and its pluggable connection method can be selected as an interference fit connection method, which can be directly plugged and replaced during the operation or maintenance of the circuit breaker.

[0028] The base plate 3 is fixed with a switch knife 301, an electromagnetic release 302 and an operating mechanism 303; the electromagnetic release 302 is magnetically connected to the operating mechanism 303, and when the electromagnetic release 302 is working, the switch knife 301 is driven by the operating mechanism 303 to perform a switch-off operation. The operating mechanism 303 is set as a traction rod 304, and the traction rod 304 controls the switch knife 301 to perform a switch-off operation under the drive of the electromagnetic release 302; once the overall current of the circuit breaker is overloaded, the magnetic release 302 is magnetized, and the magnetic release 302 drives the traction rod 304 to move according to its own characteristic magnetic force, and drives the switch knife 301 to perform a switch-off operation through the traction rod 304.

[0029] The adapter plate 2 is located between the adapter plate 2 and the control module 1, and the control module 1 and the seat plate 3 are connected through the adapter plate 2; the setting of the adapter plate 2 facilitates the installation of the control module 1 and the seat plate 3. The adapter plate 2 is fixed to one side of the seat plate 3 by screws, and the control module 1 is directly plugged in and connected to one side of the adapter plate 2.

[0030] The main loop conductor 4 is electrically connected to a temperature sensing element, and the temperature sensing element senses the temperature of the main loop conductor 4; the main loop conductor is a conductor connected at both ends, and the connectors at both ends are used to connect to external lines.

[0031] The temperature sensing element is electrically connected to the control module 1, and the temperature sensing element triggers the control module 1 after the main circuit conductor 4 is overloaded; the temperature sensing element is a temperature sensor, which can monitor the temperature on the main circuit conductor, and send a signal to the control module once the main circuit conductor is overloaded; the temperature sensing element is fixed on the housing of the circuit breaker or fixed on the main circuit conductor 4, and the housing of the circuit breaker includes the housing of the control module 1, the adapter plate 2 and the base plate 3.

[0032] The control module 1 is electrically connected to the electromagnetic release 302. The control module 1 drives the electromagnetic release 302 to work after triggering a preset program logic command in its control circuit board;

[0033] When the electromagnetic release 302 is working, it triggers the operating mechanism 303, and the operating mechanism 303 controls the switch blade 301 to perform the opening operation.

[0034] Furthermore, in this embodiment, the circuit breaker is an intelligent circuit breaker, and a wireless communication module is provided on the control circuit board of the control module 1. Through the wireless communication module, the circuit breaker has the characteristics of remote opening, carrier, remote signaling, remote adjustment, etc., so that the circuit breaker is an intelligent circuit breaker.

[0035] Furthermore, in this embodiment, the number of poles of the circuit breaker product is 2P.

[0036] Specifically, during use, the control module 1 and the base plate 3 are installed through the adapter plate 2. The adapter plate 2 is fixed to one side of the base plate 3 by screws, and the control module 1 is directly plugged and unplugged on one side of the adapter plate 2. The plug and unplug connection method can be selected as an interference fit connection method, which can be directly plugged and replaced during the operation or maintenance of the circuit breaker, and the replacement method is simple and convenient.

[0037] At the same time, the temperature sensing element is electrically connected to the main circuit conductor 4 and senses the temperature of the main circuit conductor 4. The temperature sensing element is also electrically connected to the control module 1, and sends a signal to the control module 1 after the main circuit conductor 4 is overloaded.

[0038] The control module 1 is electrically connected to the electromagnetic release 302. After the control module 1 triggers the preset program logic command in its control circuit board, it drives the electromagnetic release 302 to work. The electromagnetic release 302 magnetically connects the operating mechanism 303 according to its own characteristics, so that the electromagnetic release 302 triggers the operating mechanism 303 (traction rod 304), and controls the switch blade 301 to trip through the operating mechanism 303 (traction rod 304).

[0039] It should be noted that although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications made to the embodiments described in this article, or the equivalent structures, equivalent processes or equivalent function transformations made by using the content of the specification and drawings of the present invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A circuit breaker, characterized in that: include: A control module (1), wherein a control circuit board is fixedly arranged inside the control module (1); A base plate (3), wherein a switch blade (301), an electromagnetic release (302) and an operating mechanism (303) are fixedly arranged in the base plate (3); An adapter plate (2), the adapter plate (2) being located between the adapter plate (2) and the control module (1), and the control module (1) and the seat plate (3) being connected via the adapter plate (2); A main loop conductor (4), the main loop conductor (4) being electrically connected to a temperature sensing element, the temperature sensing element sensing the temperature of the main loop conductor (4); The temperature sensing element is electrically connected to the control module (1), and the temperature sensing element triggers the control module (1) after an overload occurs on the main circuit conductor (4); The control module (1) is electrically connected to the electromagnetic release (302), and the control module (1) drives the electromagnetic release (302) to operate after triggering a preset program logic command in its control circuit board; The electromagnetic release (302) triggers the operating mechanism (303) when in operation, and controls the switch blade (301) to perform a switch opening operation through the operating mechanism (303).

2. A circuit breaker according to claim 1, characterized in that: The operating mechanism (303) is configured as a traction rod (304), and the traction rod (304) controls the switch blade (301) to perform a disconnection operation under the drive of the electromagnetic release (302).

3. A circuit breaker according to claim 1, characterized in that: The control module (1) is configured as an independent module, and a control panel (101) is also provided inside the module. The control module (1) is pluggably connected to the adapter board (2).

4. A circuit breaker according to claim 1, characterized in that: The temperature sensing element is fixed on the housing of the circuit breaker or fixed on the main circuit conductor (4).

5. A circuit breaker according to claim 1, characterized in that: The circuit breaker is an intelligent circuit breaker, and the number of poles of the circuit breaker is 2P. A wireless communication module is arranged on the control circuit board of the control module (1).

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