Release module, operation module and molded case circuit breaker

Abstract

The utility model relates to the technical field of molded case circuit breakers, in particular to a release module, an operation module and a molded case circuit breaker. The release module provided by the utility model comprises a first base, a first cover body, a first connecting conductor and a release, wherein the release has multiple types of choices; a first splicing part is arranged on one side of the first base, and the first splicing part is used for being connected with a second splicing part on one side of the operation module in a matched mode; the first connecting conductor is used for being electrically connected with a moving contact of an operation module to form a main loop. The release parts of the integrated molded case circuit breakers of different function types are individually modularized to form the release modules of different functions, and the molded case circuit breakers of different function types can be formed by splicing the release modules and the operation modules according to the requirements of different function types. And only release modules with different functions need to be developed and manufactured subsequently, so that rapid development and iteration can be realized, the cost is reduced, and the market demand is met.

Description

Technical Field

[0001] This utility model relates to the technical field of molded case circuit breakers, and in particular to a trip unit module, an operation module, and a molded case circuit breaker. Background Technology

[0002] With the continuous development of the economy and the increasing electricity consumption, the types of electrical equipment are becoming more and more diversified, and the issue of electrical safety is receiving more and more attention. Circuit breakers with residual current protection can quickly cut off the power supply in the event of a leakage accident, and can also react to leakage current caused by reasons such as aging of lines or insulation damage. To a certain extent, they play a monitoring role in potential electrical fires and other accidents, and therefore have been increasingly widely used.

[0003] Typically, integrated circuit breakers require the development of many different types of circuit breakers to achieve various functions. There are very few common components between different types of circuit breakers. Developing a circuit breaker for each function necessitates the simultaneous development of many similar parts, which increases design complexity, generates additional similar materials, and raises hidden costs. Furthermore, developing a new circuit breaker requires dedicated production workshops and equipment, resulting in high product costs and a lack of competitiveness. Utility Model Content

[0004] The purpose of this utility model is to provide a trip unit module, an operation module, and a molded case circuit breaker to solve the technical problem that integrated circuit breakers need to develop many different types of circuit breakers to achieve different functions, resulting in a shortage of general-purpose parts, a wide variety of components, and high production and design costs.

[0005] This utility model provides a trip unit module, which is used to be spliced ​​on one side of the operation module. The trip unit module includes: a first base, a first cover, a first connecting conductor, and a trip unit, and the trip unit has multiple types to choose from.

[0006] The first cover is placed on top of the first base, and a first mounting cavity is formed between the first cover and the first base. The trip unit and the first connecting conductor are both disposed in the first mounting cavity.

[0007] A first splicing part is provided on one side of the first base, and the first splicing part is used to cooperate and connect with a second splicing part on one side of the operation module;

[0008] The first connecting conductor is used to electrically connect with the moving contact of the operating module to form a main circuit.

[0009] As a further technical solution, the trip unit is any one of the following: thermomagnetic overcurrent trip unit, thermal overload alarm non-tripping overcurrent trip unit, thermomagnetic adjustable overcurrent trip unit, and electronic overcurrent trip unit.

[0010] As a further technical solution, the trip unit is a thermomagnetic type leakage current trip unit or an electronic type leakage current trip unit.

[0011] As a further technical solution, the thermomagnetic overcurrent trip unit is any one of a thermal trip unit, an electromagnetic trip unit, and a thermomagnetic combined trip unit.

[0012] As a further technical solution, in at least two types of trip units, the structure and size of the first splice portion used in the first base are the same.

[0013] This utility model provides an operation module, which is used to be spliced ​​on one side of a trip unit module, and the trip unit module has at least two selectable types. The operation module includes a second base, a second cover, an operating system, a contact system, and an arc extinguishing system.

[0014] The second cover is placed on top of the second base, and a second mounting cavity is formed between the second cover and the second base. The operating system, the contact system and the arc extinguishing system are all disposed in the second mounting cavity.

[0015] A second splicing part is provided on one side of the second base, and the second splicing part is used to cooperate and connect with the first splicing part on one side of the trip unit module;

[0016] The contact system has a moving contact and a stationary contact. One end of the moving contact corresponds to and cooperates with the stationary contact, and the other end of the moving contact is used to electrically connect with the first connecting conductor of the trip module to form a main circuit.

[0017] As a further technical solution, it also includes a second connecting conductor, which is disposed in the second mounting cavity;

[0018] The second base is provided with a through hole. One end of the second connecting conductor is connected to the moving contact, and the other end of the second connecting conductor corresponds to the through hole. The through hole is used to pass through a connector to connect the other end of the second connecting conductor to the first connecting conductor of the trip unit module to form a main circuit.

[0019] As a further technical solution, in at least two types of trip unit modules, the structure and size of the second splice part used in the second base are the same.

[0020] As a further technical solution, in at least two types of trip unit modules, the second base, the second cover, the operating system, the contact system, and the arc extinguishing system all have the same structure and dimensions.

[0021] This utility model provides a molded case circuit breaker, including the trip unit module and the operation module;

[0022] One side of the trip unit module and one side of the operation module are connected through the first splicing part and the second splicing part;

[0023] The first connecting conductor is electrically connected to the moving contact to form a main circuit;

[0024] The first base is flush with the second base, and the first cover is flush with the second cover.

[0025] Compared with the prior art, the technical advantages of the trip unit module, operating module, and molded case circuit breaker provided by this utility model are as follows:

[0026] The trip unit module provided by this utility model is used to be spliced ​​on one side of the operating module. The trip unit module includes: a first base, a first cover, a first connecting conductor, and a trip unit, and the trip unit has multiple types to choose from; the first cover is disposed on the top of the first base, and a first mounting cavity is formed between the first cover and the first base, and the trip unit and the first connecting conductor are both disposed in the first mounting cavity; a first splicing part is provided on one side of the first base, and the first splicing part is used to cooperate and connect with a second splicing part on one side of the operating module; the first connecting conductor is used to electrically connect with the moving contact of the operating module to form a main circuit.

[0027] The trip unit of integrated molded case circuit breakers with different functions can be modularly manufactured to form trip unit modules with different functions. By simply splicing the trip unit modules with the operation modules according to the different functional requirements, molded case circuit breakers with different functions can be formed. In the future, only the trip unit modules with different functions need to be developed and manufactured, which can quickly develop and iterate, reduce costs, and meet market demands.

[0028] The operating module provided by this utility model is used to be spliced ​​on one side of any type of trip unit module. The operating module includes a second base, a second cover, an operating system, a contact system, and an arc extinguishing system. The second cover is disposed on the top of the second base, and a second mounting cavity is formed between the second cover and the second base. The operating system, the contact system, and the arc extinguishing system are all disposed in the second mounting cavity. A second splicing part is provided on one side of the second base, and the second splicing part is used to cooperate and connect with a first splicing part on one side of the trip unit module. The contact system has a moving contact and a stationary contact. One end of the moving contact corresponds to and cooperates with the stationary contact, and the other end of the moving contact is used to electrically connect with the first connecting conductor of the trip unit module to form a main circuit.

[0029] The common parts of integrated molded case circuit breakers of different functional types are modularly manufactured into operating modules. Different functional types of molded case circuit breakers can be formed by simply splicing the trip unit modules with the operating modules according to the requirements. The operating modules are universal components, which can be produced separately during the production process, with large-scale inventory, shortening the product supply cycle and minimizing the cost of parts. In the future, only trip unit modules with different functions need to be developed and manufactured, which can be developed and iterated quickly, reduce costs, and meet market demands.

[0030] The molded case circuit breaker provided by this utility model includes the aforementioned trip unit module and operating module. Therefore, the technical advantages and effects achieved by it include the technical advantages and effects achieved by the aforementioned trip unit module and operating module, which will not be elaborated here.

[0031] Meanwhile, the first base is flush with the second base, and the first cover is flush with the second cover. After the trip unit module and the operation module are assembled, the overall appearance is aesthetically pleasing.

[0032] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the operation module structure provided in an embodiment of the present utility model;

[0035] Figure 2 A cross-sectional view of the operation module provided in an embodiment of this utility model;

[0036] Figure 3 This is a schematic diagram of the trip unit module structure provided in an embodiment of the present utility model;

[0037] Figure 4 A cross-sectional view of the trip unit module provided in an embodiment of this utility model;

[0038] Figure 5 A schematic diagram of the molded case circuit breaker structure provided for an embodiment of this utility model.

[0039] Icons: 1-Trip unit module; 2-First base; 3-First cover; 4-First connecting conductor; 5-First splicing part; 6-Operating module; 7-Second base; 8-Second cover; 9-Operating system; 10-Contact system; 11-Arc extinguishing system; 12-Second splicing part; 13-Moving contact; 14-Stationary contact; 15-Second connecting conductor; 16-Magnetic yoke; 17-Stationary iron core; 18-Thermo-bimetallic strip; 19-Moving iron core; 20-Perforation; 21-Screw; 22-Operating handle; 23-Operating component; 24-Arc extinguishing grid; 25-Side plate. Detailed Implementation

[0040] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0044] The present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0045] The specific structure is as follows: Figures 1 to 5 As shown.

[0046] This embodiment provides a trip unit module 1, an operation module 6, and a molded case circuit breaker to solve the technical problem that integrated circuit breakers require the development of many different types of circuit breakers to achieve different functions, resulting in a shortage of general-purpose components, a wide variety of parts, and high production and design costs.

[0047] This utility model provides a trip unit module 1, which is spliced ​​on one side of an operation module 6. The trip unit module 1 includes: a first base 2, a first cover 3, a first connecting conductor 4, and a trip unit, and the trip unit has multiple types to choose from; the first cover 3 covers the top of the first base 2, and a first mounting cavity is formed between the first cover 3 and the first base 2, and the trip unit and the first connecting conductor 4 are both disposed in the first mounting cavity; a first splicing part 5 is provided on one side of the first base 2, and the first splicing part 5 is used to cooperate and connect with a second splicing part 12 on one side of the operation module 6; the first connecting conductor 4 is used to electrically connect with the moving contact 13 of the operation module 6 to form a main circuit.

[0048] In this embodiment, the trip unit of the integrated molded case circuit breaker with different functional types is separately modularized to form trip unit modules 1 with different functions. Different functional types of molded case circuit breakers can be formed by simply splicing the trip unit modules 1 with the operation module 6 according to the different functional requirements. In the future, only the trip unit modules 1 with different functions need to be developed and manufactured, which can quickly develop and iterate, reduce costs, and meet market demands.

[0049] In the optional technical solution of this embodiment, the trip unit is a thermomagnetic overcurrent trip unit, and the trip unit module 1 is a thermomagnetic overcurrent trip unit module.

[0050] Among them, the thermal-magnetic overcurrent trip unit refers to the thermal-magnetic trip unit whose operating current is not adjustable and which trips in the event of overload or short circuit, including thermal trip units, electromagnetic trip units and thermal-magnetic combined trip units.

[0051] In the optional technical solution of this embodiment, the trip unit is a thermal overload alarm non-tripping overcurrent trip unit, and the trip unit module 1 is a thermal overload alarm non-tripping overcurrent trip unit module.

[0052] In the optional technical solution of this embodiment, the trip unit is a thermomagnetic adjustable overcurrent trip unit, and the trip unit module 1 is a thermomagnetic adjustable overcurrent trip unit module.

[0053] In the optional technical solution of this embodiment, the trip unit is an electronic overcurrent trip unit, and the trip unit module 1 is an electronic overcurrent trip unit module.

[0054] In the optional technical solution of this embodiment, the trip unit is a thermomagnetic leakage trip unit, and the trip unit module 1 is a thermomagnetic leakage trip unit module.

[0055] In the optional technical solution of this embodiment, the trip unit is an electronic residual current trip unit, and the trip unit module 1 is an electronic residual current trip unit module.

[0056] Specifically, the thermomagnetic trip unit includes a magnetic yoke 16, a stationary iron core 17, a thermo-bimetallic strip 18, and a moving iron core 19, and the thermomagnetic trip unit is connected to the first connecting conductor 4.

[0057] In this embodiment, under at least two types of trip units, the structure and size of the first splice part used in the first base 2 are the same.

[0058] This embodiment provides an operation module 6, which is spliced ​​onto one side of the trip unit module 1. The trip unit module 1 has at least two selectable types. The operation module 6 includes a second base 7, a second cover 8, an operating system 9, a contact system 10, and an arc extinguishing system 11. The second cover 8 is disposed on the top of the second base 7, and a second mounting cavity is formed between the second cover 8 and the second base 7. The operating system 9, the contact system 10, and the arc extinguishing system 11 are all disposed in the second mounting cavity. A second splicing part 12 is provided on one side of the second base 7, and the second splicing part 12 is used to cooperate and connect with a first splicing part 5 on one side of the trip unit module 1. The contact system 10 has a moving contact 13 and a stationary contact 14. One end of the moving contact 13 corresponds to and cooperates with the stationary contact 14, and the other end of the moving contact 13 is used to electrically connect with the first connecting conductor 4 of the trip unit module 1 to form a main circuit.

[0059] In this embodiment, the common parts of integrated molded case circuit breakers of different functional types are separately modularized to form operation module 6. Different functional types of trip unit modules 1 can be spliced ​​with operation module 6 according to requirements to form molded case circuit breakers of different functional types. Operation module 6 is a universal component, which can be produced separately during the production process, with a large inventory, shortening the product supply cycle and minimizing the cost of parts. In the future, only trip unit modules 1 with different functions need to be developed and manufactured, which can be developed and iterated quickly, reduce costs, and meet market demands.

[0060] In the optional technical solution of this embodiment, a second connecting conductor 15 is also included. The second connecting conductor 15 is disposed in the second mounting cavity. A through hole 20 is provided on the second base 7. One end of the second connecting conductor 15 is connected to the moving contact 13, and the other end of the second connecting conductor 15 corresponds to the through hole 20. The through hole 20 is used to pass through a connector to connect the other end of the second connecting conductor 15 to the first connecting conductor 4 of the trip unit module 1 to form a main circuit.

[0061] In this embodiment, the operating system 9 includes an operating handle 22 and an operating component 23, with the operating component 23 located within the second mounting cavity. The operating handle 22 is connected to the operating component 23 and extends to the outside of the second cover 8. The arc extinguishing system 11 includes an arc extinguishing grid 24 and a side plate 25. The contact system 10 includes a stationary contact 14, a moving contact 13, and a second connecting conductor 15. One end of the moving contact 13 corresponds to and engages with the stationary contact 14, and the other end is connected to the second connecting conductor 15. A through hole 20 is formed on the second base 7, and the end of the second connecting conductor 15 away from the moving contact 13 is connected to the through hole 20. The second connecting conductor 15 is provided with a second connecting hole at the end away from the moving contact 13. The second connecting hole corresponds to the through hole 20. One end of the first connecting conductor 4 extends toward the side of the first base 2 that needs to be spliced ​​with the second base 7, and the end is provided with a first connecting hole. When the first base 2 and the second base 7 are spliced ​​together by the first splicing part 5 and the second splicing part 12, the first connecting hole corresponds to the second connecting hole. The first connecting conductor 4 and the second connecting conductor 15 are connected by a connector passing through the through hole 20 to form the main circuit.

[0062] In this embodiment, one end of the stationary contact 14 is used for external connection, and the other end cooperates with the moving contact 13. One end of the first connecting conductor 4 is connected to the second connecting conductor 15, and the other end is used for external connection.

[0063] In this preferred embodiment, the second connecting conductor 15 is copper foil, which has good conductivity, simple structure and low cost; the connecting component is screw 21, which has simple structure, low cost and convenient disassembly.

[0064] In this embodiment, the first splicing part 5 and the second splicing part 12 can be a buckle structure that cooperates with each other, or the first splicing part 5 and the second splicing part 12 can be a plug-in structure that cooperates with each other, and the plug-in structure is a slot and a plug rod; the first splicing part 5 and the second splicing part 12 can also be a magnetic structure that cooperates with each other; the first splicing part 5 and the second splicing part 12 can also be other quick-release structures that cooperate with each other.

[0065] Preferably, the first splicing part 5 includes a dovetail groove and a guide limiting rib, and the second splicing part 12 includes a dovetail protrusion and a guide limiting groove. The dovetail protrusion is inserted into the dovetail groove along the top to bottom direction of the trip unit module 1, and the guide limiting rib is inserted into the guide limiting groove along the top to bottom direction of the operation module 6, so that the operation module 6 and the trip unit module 1 are more stable after splicing.

[0066] In this embodiment, under at least two types of trip unit modules 1, the structure and size of the second splice part adopted by the second base 7 are the same; under at least two types of trip unit modules 1, the structure and size of the second base 7, the second cover 8, the operating system 9, the contact system 10 and the arc extinguishing system 11 are the same.

[0067] This embodiment provides a molded case circuit breaker, including the trip unit module 1 and the operation module 6 mentioned above. Therefore, the technical advantages and effects achieved by the molded case circuit breaker include the technical advantages and effects achieved by the trip unit module 1 and the operation module 6 mentioned above, which will not be repeated here.

[0068] In this embodiment, one side of the trip unit module 1 and one side of the operation module 6 are connected by the first splicing part 5 and the second splicing part 12; the first connecting conductor 4 is electrically connected to the moving contact 13 to form a main circuit; the bottom and side surfaces of the first base 2 and the second base 7 are flush, and the top and side surfaces of the first cover 3 and the second cover 8 are flush, so that the trip unit module 1 and the operation module 6 are aesthetically pleasing after splicing.

[0069] The molded case circuit breaker provided in this embodiment is modular, consisting of a trip unit module 1 and an operation module 6, which enables rapid product design and delivery, and allows for the customization of products with different functions for customers with different needs.

[0070] It should be noted that after the molded case circuit breaker provided in this embodiment is assembled, the trip unit module 1 is located on one side of the operating handle 22 of the operating module 6 in the direction of movement. Preferably, when the operating handle 22 of the operating module 6 is moved in the up-down direction, the trip unit module 1 is located on the lower side of the operating handle 22 in the direction of movement, so that the operating handle 22 can be located in the middle of the molded case circuit breaker, making the assembled molded case circuit breaker structure aesthetically pleasing and reasonable.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A trip unit module characterized by, The tripping module (1) is used for splicing on one side of the operation module (6), the tripping module (1) comprises a first base (2), a first cover (3), a first connecting conductor (4) and a tripping device, and the tripping device has multiple types of selection; The first cover (3) is arranged on the top of the first base (2), and a first installation cavity is formed between the first cover (3) and the first base (2), and the tripping device and the first connecting conductor (4) are arranged in the first installation cavity; One side of the first base (2) is provided with a first splicing part (5), and the first splicing part (5) is used for cooperating with a second splicing part (12) on one side of the operation module (6); The first connecting conductor (4) is used for electrically connecting with a moving contact (13) of the operation module (6) to form a main circuit.

2. The trip unit module of claim 1, wherein, The tripping device is any one of a thermal magnetic overcurrent tripping device, a thermal overload alarm non-tripping overcurrent tripping device, a thermal magnetic adjustable overcurrent tripping device and an electronic overcurrent tripping device.

3. The tripper module of claim 1, wherein, The tripping device is a thermal magnetic overcurrent tripping device or an electronic overcurrent tripping device.

4. The trip unit module of claim 2, wherein, The thermal magnetic overcurrent tripping device is any one of a thermal tripping device, an electromagnetic tripping device and a thermal magnetic compound tripping device.

5. The trip unit module of any one of claims 1-4, wherein, The structure and size of the first splicing part (5) of the first base (2) are the same under at least two types of the tripping device.

6. An operating module, characterized in that The operation module (6) is used for splicing on one side of the tripping module (1), and the tripping module (1) has at least two types of selection, the operation module (6) comprises a second base (7), a second cover (8), an operation system (9), a contact system (10) and an arc extinguishing system (11); The second cover (8) is arranged on the top of the second base (7), and a second installation cavity is formed between the second cover (8) and the second base (7), and the operation system (9), the contact system (10) and the arc extinguishing system (11) are arranged in the second installation cavity; One side of the second base (7) is provided with a second splicing part (12), and the second splicing part (12) is used for cooperating with the first splicing part (5) on one side of the tripping module (1); The contact system (10) has a moving contact (13) and a static contact (14), one end of the moving contact (13) corresponds to the static contact (14), and the other end of the moving contact (13) is used for electrically connecting with the first connecting conductor (4) of the tripping module (1) to form a main circuit.

7. The operating module of claim 6, wherein, A second connecting conductor (15) is further included, and the second connecting conductor (15) is arranged in the second installation cavity; A through hole (20) is arranged on the second base (7), one end of the second connecting conductor (15) is connected to the moving contact (13), the other end of the second connecting conductor (15) corresponds to the through hole (20), and the through hole (20) is used for penetrating a connecting piece to connect the other end of the second connecting conductor (15) and the first connecting conductor (4) of the tripping module (1) to form a main circuit.

8. The operating module according to any one of claims 6-7, characterized in that, The structure and size of the second joint adopted by the second base (7) are the same for at least two types of the circuit breaker module (1).

9. The operating module according to any one of claims 6-7, characterized in that, The structure and size of the second base (7), the second cover (8), the operating system (9), the contact system (10) and the arc extinguishing system (11) are the same for at least two types of the circuit breaker module (1).

10. A molded case circuit breaker characterized by, The circuit breaker module (1) of any one of claims 1-5 and the operating module (6) of any one of claims 6-9 are included; One side of the circuit breaker module (1) and one side of the operating module (6) are connected through the cooperation of the first joint (5) and the second joint (12); The first connecting conductor (4) is electrically connected with the movable contact (13) to form a main circuit; The first base (2) is flush with the second base (7), and the first cover (3) is flush with the second cover (8).

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