Electronic molded case circuit breaker

Abstract

The utility model discloses an electronic molded case circuit breaker, and relates to the technical field of molded case circuit breakers. The molded case circuit breaker comprises a molded case circuit breaker body, copper wiring terminals are arranged at the input end and the output end of the molded case circuit breaker body, and mounting threaded holes are formed in the surface of the molded case circuit breaker body. According to the utility model, when the molded case circuit breaker body is switched on, the electromagnetic assembly is electrified to generate magnetic force, the protection plate is vertically pulled to enable the iron bar to be connected with the end part of the electromagnetic assembly, the protection plate and the iron bar are fixed under the action of the magnetic force, and an operating rod of the molded case circuit breaker body is protected through the protection shell and the protection plate. When the molded case circuit breaker body trips, the electromagnetic assembly is powered off, the magnetic force disappears, the electromagnetic assembly vertically moves downwards under the action of gravity of the protection plate and the iron bar, the front end of the protection shell is in an open state, and then an operator can conveniently overhaul, switch on and maintain the molded case circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of molded case circuit breaker technology, specifically to an electronic molded case circuit breaker. Background Technology

[0002] Electronic molded case circuit breakers are devices used for circuit protection. They combine the advantages of traditional thermal-magnetic circuit breakers and electronic technology. Compared with traditional thermal-magnetic circuit breakers, they have higher precision, faster response speed and more functional features.

[0003] Currently, the switching components of most electronic molded case circuit breakers, such as buttons or operating levers, are exposed. In actual use, they are easily invaded by external moisture, dust, and other substances, causing short circuits, malfunctions, or even damage. This defect not only affects the reliability of the circuit breaker but also increases safety hazards. At present, there is a lack of effective external protection for the switches of electronic molded case circuit breakers on the market.

[0004] Therefore, an electronic molded case circuit breaker is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an electronic molded case circuit breaker in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] An electronic molded case circuit breaker includes a molded case circuit breaker body. Copper terminals are provided at both the input and output ends of the molded case circuit breaker body. Threaded mounting holes are formed on the surface of the molded case circuit breaker body. A protective shell is bolted to the surface of the molded case circuit breaker body and fixedly installed in the threaded mounting holes to protect the operating lever of the molded case circuit breaker body. A protective plate is vertically inserted into the protective shell, and an iron strip is fixedly installed at the top of the protective plate. Electromagnetic components are provided on the protective shell and on the two sets of copper terminals at the output end of the molded case circuit breaker body.

[0008] Furthermore, the protective shell includes a shell that is fixed to the surface of the molded case circuit breaker body by bolts and threaded insertion holes. Guide grooves are provided on the inner walls of both sides of the shell, and a insertion slot is provided on the bottom surface of the shell. The protective plate is vertically inserted into the insertion slot and the guide groove. An installation groove is provided on the top surface of the shell.

[0009] Furthermore, the electromagnetic component includes a bar electromagnet fixedly inserted into the mounting slot, and wires are fixedly connected to the electrodes of the bar electromagnet, with U-shaped terminals fixedly installed at the ends of the wires.

[0010] Furthermore, an insulating handle is fixedly installed on the front side wall of the protective plate, and the vertical position of the protective plate is limited by the insulating handle when the protective plate is inserted into the insertion slot.

[0011] Furthermore, both the housing and the protective plate are made of plastic, and the housing and the protective plate may be made of transparent plastic.

[0012] Furthermore, the bar electromagnet and the iron bar are arranged in a corresponding manner. When the molded case circuit breaker body is closed and the protective plate is closed, the bar electromagnet is energized to generate magnetic force that matches the iron bar, thereby closing the protective plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] When the molded case circuit breaker is closed, its electromagnetic component is energized and generates magnetic force, which vertically pulls the protective plate, connecting the iron bar to the end of the electromagnetic component. Under the action of magnetic force, the protective plate and iron bar are fixed. The protective shell and protective plate protect the operating rod of the molded case circuit breaker. When the molded case circuit breaker trips, the electromagnetic component loses its electromagnetic force, and under the action of gravity of the protective plate and iron bar, it moves vertically downward, opening the front end of the protective shell, thus facilitating the operator's inspection, closing, and maintenance. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the present invention in the power-off state;

[0017] Figure 3 This is an exploded view of this utility model;

[0018] Figure 4 This is a partial exploded view of this utility model;

[0019] Reference numerals in the attached drawings: 1. Molded case circuit breaker body; 11. Mounting threaded hole; 2. Copper terminal block; 3. Protective housing; 301. Housing; 302. Guide groove; 303. Plug-in groove; 304. Mounting groove; 4. Protective plate; 41. Insulating handle; 5. Iron bar; 6. Electromagnetic assembly; 601. Bar electromagnet; 602. Wire; 603. U-shaped terminal block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They 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. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 4As shown, an electronic molded case circuit breaker includes a molded case circuit breaker body 1. Copper terminals 2 are provided at both the input and output ends of the molded case circuit breaker body 1. The surface of the molded case circuit breaker body 1 has threaded holes 11 for mounting. A protective shell 3 is fixedly installed on the surface of the molded case circuit breaker body 1 by bolts inserted into the threaded holes 11 to protect the operating rod of the molded case circuit breaker body 1. A protective plate 4 is vertically inserted into the protective shell 3, and an iron strip 5 is fixedly installed on the top of the protective plate 4. Electromagnetic components 6 are provided on the protective shell 3 and on the two sets of copper terminals 2 at the output end of the molded case circuit breaker body 1. More specifically, the live and neutral wires of the electrical wire are connected sequentially to the molded case circuit breaker body 1, and fixed to the copper terminal 2 at the output end of the molded case circuit breaker body 1 via the connection end of the electromagnetic component 6. When the molded case circuit breaker body 1 is closed, its electromagnetic component 6 is energized to generate magnetic force, which vertically pulls the protective plate 4 so that the iron bar 5 is connected to the end of the electromagnetic component 6. Under the action of magnetic force, the protective plate 4 and the iron bar 5 are fixed. The operating rod of the molded case circuit breaker body 1 is protected by the protective shell 3 and the protective plate 4. When the molded case circuit breaker body 1 trips, the electromagnetic component 6 loses its electromagnetic force, and under the action of gravity of the protective plate 4 and the iron bar 5, it moves vertically downward, so that the front end of the protective shell 3 is in the open state, which facilitates the operator's inspection, closing and maintenance.

[0025] The protective housing 3 includes a housing 301 that is threadedly fixed to the surface of the molded case circuit breaker body 1 by bolts and mounting threaded holes 11. Guide grooves 302 are formed on the inner walls of both sides of the housing 301, and a through-hole 303 is formed on the bottom surface of the housing 301. The protective plate 4 is vertically inserted into the through-hole 303 and the guide grooves 302. An installation groove 304 is formed on the top surface of the housing 301. More specifically, by fitting the surfaces of the housing 301 and the molded case circuit breaker body 1 together, the mounting holes on the surface of the housing 301 correspond to the mounting threaded holes 11 on the surface of the molded case circuit breaker body 1. Bolts are used to fix the housing 301 and the molded case circuit breaker body 1. The guide grooves 302 on the inner walls of the housing 301 and the through-hole 303 on the bottom surface of the housing 301 guide and limit the vertical movement of the protective plate 4. The installation groove 304 allows for the fixed installation of the strip electromagnet 601.

[0026] The electromagnetic component 6 includes a bar electromagnet 601 fixedly inserted into the mounting slot 304, with wires 602 fixedly connected to the electrodes of the bar electromagnet 601, and U-shaped terminals 603 fixedly installed at the ends of the wires 602. More specifically, the U-shaped terminals 603 can be fixedly connected to the copper terminals 2 at the output end of the molded case circuit breaker body 1, and the bar electromagnet 601 is energized through the wires 602, thereby enabling the bar electromagnet 601 to generate and lose magnetic force when the molded case circuit breaker body 1 is closed and opened.

[0027] An insulating handle 41 is fixedly installed on the front side wall of the protective plate 4, and the vertical position of the protective plate 4 is limited by the insulating handle 41 when the protective plate 4 is inserted into the insertion slot 303. More specifically, the insulating handle 41 on the front side wall of the protective plate 4 enables the protective plate 4 to be moved vertically, facilitating the closing of the protective plate 4.

[0028] Both the housing 301 and the protective plate 4 are made of plastic, and the housing 301 and the protective plate 4 can be made of transparent plastic. More specifically, the housing 301 and the protective plate 4 thus protect the operating lever of the molded case circuit breaker body 1.

[0029] The bar electromagnet 601 and the iron bar 5 are arranged in a corresponding manner. When the molded case circuit breaker body 1 is closed and the protective plate 4 is closed, the bar electromagnet 601 is energized to generate magnetic force that matches the iron bar 5, thereby closing the protective plate 4. More specifically, by energizing the bar electromagnet 601, a magnetic force is generated, which matches the iron bar 5 to fix the iron bar 5 and close the protective plate 4.

[0030] In summary: The live and neutral wires of the electrical wire are connected sequentially to the molded case circuit breaker body 1, and fixed to the copper terminal 2 at the output end of the molded case circuit breaker body 1 via the connection end of the electromagnetic component 6. When the molded case circuit breaker body 1 is closed, its electromagnetic component 6 is energized to generate magnetic force, which vertically pulls the protective plate 4, connecting the iron bar 5 to the end of the electromagnetic component 6. Under the action of magnetic force, the protective plate 4 and the iron bar 5 are fixed. The operating lever of the molded case circuit breaker body 1 is protected by the protective shell 3 and the protective plate 4. When the molded case circuit breaker body 1 trips, the electromagnetic component 6 loses its electromagnetic force, and under the action of gravity of the protective plate 4 and the iron bar 5, it moves vertically downward, so that the front end of the protective shell 3 is in the open state, which facilitates the operator's inspection, closing and maintenance.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electronic molded case circuit breaker, characterized in that, The circuit breaker includes a molded case circuit breaker body (1), and copper terminals (2) are provided at both the input and output ends of the molded case circuit breaker body (1). The surface of the molded case circuit breaker body (1) is provided with mounting threaded holes (11), and a protective shell (3) is fixedly installed on the surface of the molded case circuit breaker body (1) by bolts and the mounting threaded holes (11) to protect the operating rod of the molded case circuit breaker body (1). A protective plate (4) is vertically inserted on the protective shell (3), and an iron strip (5) is fixedly installed on the top of the protective plate (4). Electromagnetic components (6) are provided on the protective shell (3) and on the two sets of copper terminals (2) at the output end of the molded case circuit breaker body (1).

2. The electronic molded case circuit breaker according to claim 1, characterized in that, The protective shell (3) includes a shell (301) that is fixed to the surface of the molded case circuit breaker body (1) by bolts and threaded insertion holes (11). The inner walls on both sides of the shell (301) are provided with guide grooves (302). The bottom surface of the shell (301) is provided with a insertion through groove (303). The protective plate (4) is vertically inserted into the insertion through groove (303) and the guide groove (302). The top surface of the shell (301) is provided with an installation groove (304).

3. The electronic molded case circuit breaker according to claim 1, characterized in that, The electromagnetic component (6) includes a bar electromagnet (601) fixedly inserted into the mounting slot (304), and wires (602) are fixedly connected to the electrodes of the bar electromagnet (601), and U-shaped terminals (603) are fixedly installed at the ends of the wires (602).

4. An electronic molded case circuit breaker according to claim 2, characterized in that, An insulating handle (41) is fixedly installed on the front side wall of the protective plate (4), and the vertical position of the protective plate (4) is limited by the insulating handle (41) when the protective plate (4) is inserted into the insertion slot (303).

5. An electronic molded case circuit breaker according to claim 2, characterized in that, Both the housing (301) and the protective plate (4) are made of plastic, and the housing (301) and the protective plate (4) can be made of transparent plastic.

6. An electronic molded case circuit breaker according to claim 3, characterized in that, The bar electromagnet (601) The iron bar (5) is arranged in a corresponding manner. After the molded case circuit breaker body (1) is closed, the protective plate (4) is closed. Its bar electromagnet (601) generates magnetic force when energized and matches the iron bar (5) to close the protective plate (4).

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