Shell structure of molded case circuit breaker

Abstract

The utility model relates to the technical field of circuit breaker shells, and solves the problems that when a circuit breaker is installed by using bolts, the efficiency is low, and the maintenance of the circuit breaker is not convenient enough. The molded case circuit breaker shell structure comprises a protection cover, a supporting block is fixedly installed in the protection cover, a positioning plate is fixedly installed on the inner wall of the protection cover, a guide frame is arranged on the surface of the positioning plate, a guide groove is formed in the surface of the guide frame, a positioning assembly is arranged in the guide groove, and the positioning frame is clamped to the surface of the positioning assembly. A circuit breaker is arranged on the surface of the positioning frame, a sealing cover is rotationally connected to the top of the protection cover, the positioning assembly comprises a guide rod fixedly installed in the guide frame, the surface of the guide rod is sleeved with a spring, positioning rings are slidably connected to the two sides of the surface of the guide rod, and clamping blocks are fixedly installed on the surfaces of the positioning rings; guide grooves are formed in the two sides of the surface of the positioning frame, and pressing blocks are slidably connected into the guide grooves.

Description

Technical Field

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

[0002] The molded case circuit breaker housing structure disclosed in CN221407205U includes an upper cover, a middle cover, and an accessory groove and lead port disposed on the middle cover. A shearable baffle structure is integrally formed on the bottom surface of the upper cover. The baffle structure is disposed vertically on the bottom surface of the upper cover. When the upper cover is installed on the middle cover, the baffle structure is driven to cover the inner end of the lead port. The baffle structure is provided with an insert that is matched and inserted into the lead port.

[0003] The baffle structure and the top cover of this technical solution are designed as an integrated structure, which has strong integrity, beautiful and neat appearance, and good installation stability. The baffle structure can be cut off or retained according to the optional accessory module requirements, which is more convenient to use. From a cost perspective, the labor cost of cutting off the baffle is far lower than the material cost and management cost of adding the middle cover side insert or fake accessory, thereby reducing production costs.

[0004] However, installing circuit breakers using bolts is slow and inconvenient for maintenance, making this method inefficient for circuit breaker installation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a molded case circuit breaker housing structure, which solves the problems of slow installation and inconvenient maintenance of circuit breakers when using bolts for installation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a molded case circuit breaker housing structure, including a protective cover, a support block fixedly installed inside the protective cover, a positioning plate fixedly installed on the inner wall of the protective cover, a guide frame provided on the surface of the positioning plate, a guide groove opened on the surface of the guide frame, a positioning component provided inside the guide groove, a positioning frame snapped onto the surface of the positioning component, a circuit breaker provided on the surface of the positioning frame, and a sealing cover rotatably connected to the top of the protective cover;

[0007] The positioning component includes a guide rod fixedly installed inside the guide frame. A spring is sleeved on the surface of the guide rod. Positioning rings are slidably connected to both sides of the surface of the guide rod. A snap-fit ​​block is fixedly installed on the surface of the positioning ring. Guide grooves are opened on both sides of the surface of the positioning frame. A pressing block is slidably connected inside the guide groove.

[0008] In one specific embodiment, the size of the positioning ring is adapted to the size of the guide rod, and the positioning ring is located at both ends of the spring.

[0009] In a specific embodiment, the positioning frame has snap-fit ​​grooves on both sides, the size of the snap-fit ​​grooves is adapted to the size of the snap-fit ​​block, and the surface of the snap-fit ​​block is in contact with the surface of the pressing block.

[0010] In one specific embodiment, a fixing plate is fixedly installed on both sides of the protective cover, and a positioning groove is provided on both sides of the surface of the fixing plate.

[0011] In one specific embodiment, a through groove is provided in the middle of the interior of the protective cover, and the through groove is located at one end of the support block.

[0012] In one specific embodiment, a sealing gasket is provided inside the sealing cover, and the size of the sealing gasket is adapted to the size of the inside of the protective cover.

[0013] Compared with the prior art, the present invention provides a molded case circuit breaker housing structure, which has the following beneficial effects:

[0014] In the technical solution disclosed in this utility model, by using a protective cover, a positioning plate, a guide frame, and a positioning component, during use, the personnel snap the positioning frame onto the surface of the snap-fit ​​block, and the snap-fit ​​block installs the positioning frame. After the positioning frame is installed, the circuit breaker will be installed accordingly, which improves the efficiency of quickly installing the circuit breaker.

[0015] With the positioning component designed in this utility model, during use, the operator snaps the positioning frame onto the snap-fit ​​block. The snap-fit ​​block, through the positioning ring, compresses the spring on the guide rod. When the spring is compressed, it will cause the snap-fit ​​block to spring back through the positioning ring. When the snap-fit ​​block springs back, it will snap into the interior of the positioning frame. When it is necessary to disassemble the positioning frame, the operator presses the pressing blocks on both sides of the positioning frame surface. The pressing blocks will then press the snap-fit ​​block, and the operator can then disassemble the positioning frame, thus improving the efficiency of the operator in quickly installing the circuit breaker. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the unfolded structure of the sealing cap of this utility model.

[0021] In the diagram: 1. Protective cover; 2. Support block; 3. Positioning plate; 4. Guide frame; 5. Positioning assembly; 51. Guide rod; 52. Spring; 53. Positioning ring; 54. Snap-fit ​​block; 55. Pressing block; 6. Positioning frame; 7. Circuit breaker; 8. Sealing cover. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Figures 1-4 In one embodiment of this utility model, a molded case circuit breaker housing structure includes a protective cover 1, a support block 2 fixedly installed inside the protective cover 1, a positioning plate 3 fixedly installed on the inner wall of the protective cover 1, a guide frame 4 provided on the surface of the positioning plate 3, a guide groove opened on the surface of the guide frame 4, a positioning component 5 provided inside the guide groove, a positioning frame 6 snapped onto the surface of the positioning component 5, a circuit breaker 7 provided on the surface of the positioning frame 6, and a sealing cover 8 rotatably connected to the top of the protective cover 1.

[0024] The specific problem addressed in this embodiment is the slow and inconvenient installation of circuit breaker 7 using bolts, which also hinders its maintenance. This invention utilizes a protective cover 1, a positioning plate 3, a guide frame 4, and a positioning component 5. During use, the positioning frame 6 is snapped onto the surface of the snap-fit ​​block 54, which then installs the positioning frame 6. After the positioning frame 6 is installed, the circuit breaker 7 is automatically installed, thus improving the efficiency of rapid installation of the circuit breaker 7.

[0025] The positioning component 5 includes a guide rod 51 fixedly installed inside the guide frame 4. A spring 52 is sleeved on the surface of the guide rod 51. Positioning rings 53 are slidably connected to both sides of the surface of the guide rod 51. A snap-fit ​​block 54 is fixedly installed on the surface of the positioning ring 53. Guide grooves are formed on both sides of the surface of the positioning frame 6. A pressing block 55 is slidably connected inside the guide groove. The size of the positioning ring 53 matches the size of the guide rod 51. The positioning ring 53 is located at both ends of the spring 52. Snap-fit ​​grooves are formed on both sides of the interior of the positioning frame 6. The size of the snap-fit ​​groove matches the size of the snap-fit ​​block 54. The surface of the snap-fit ​​block 54 contacts the surface of the pressing block 55. In this specific embodiment, during use, the operator snaps the positioning frame 6 onto the snap-fit ​​block 54. The snap-fit ​​block 54 compresses the spring 52 on the guide rod 51 through the positioning ring 53. When the spring 52 is compressed, it will cause the snap-fit ​​block 54 to spring back through the positioning ring 53. When the snap-fit ​​block 54 springs back, it will snap into the interior of the positioning frame 6. When it is necessary to disassemble the positioning frame 6, the operator presses the pressing blocks 55 on both sides of the surface of the positioning frame 6. The pressing blocks 55 will press the snap-fit ​​block 54 accordingly. Then the operator can disassemble the positioning frame 6, which improves the efficiency of the operator in quickly installing the circuit breaker 7.

[0026] In this specific embodiment, a fixing plate is fixedly installed on both sides of the protective cover 1. A positioning groove is opened on both sides of the surface of the fixing plate. A through groove is opened in the middle of the interior of the protective cover 1. The through groove is located at one end of the support block 2. A sealing gasket is provided inside the sealing cover 8. The size of the sealing gasket is adapted to the size of the interior of the protective cover 1.

[0027] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0028] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molded case circuit breaker housing structure, comprising a protective cover (1), characterized in that: The protective cover (1) is fixedly installed with a support block (2), and the inner wall of the protective cover (1) is fixedly installed with a positioning plate (3). The surface of the positioning plate (3) is provided with a guide frame (4), the surface of the guide frame (4) is provided with a guide groove, the inside of the guide groove is provided with a positioning component (5), the surface of the positioning component (5) is snapped with a positioning frame (6), the surface of the positioning frame (6) is provided with a circuit breaker (7), and the top of the protective cover (1) is rotatably connected with a sealing cover (8). The positioning component (5) includes a guide rod (51) fixedly installed inside the guide frame (4). A spring (52) is sleeved on the surface of the guide rod (51). Positioning rings (53) are slidably connected to both sides of the surface of the guide rod (51). A snap-fit ​​block (54) is fixedly installed on the surface of the positioning ring (53). Guide grooves are opened on both sides of the surface of the positioning frame (6). A pressing block (55) is slidably connected inside the guide groove.

2. The molded case circuit breaker housing structure according to claim 1, characterized in that: The size of the positioning ring (53) is adapted to the size of the guide rod (51), and the positioning ring (53) is located at both ends of the spring (52).

3. The molded case circuit breaker housing structure according to claim 1, characterized in that: The positioning frame (6) has snap-fit ​​grooves on both sides inside. The size of the snap-fit ​​grooves is adapted to the size of the snap-fit ​​block (54). The surface of the snap-fit ​​block (54) is in contact with the surface of the pressing block (55).

4. The molded case circuit breaker housing structure according to claim 1, characterized in that: The protective cover (1) is fixedly installed on both sides with fixing plates, and positioning grooves are opened on both sides of the surface of the fixing plates.

5. The molded case circuit breaker housing structure according to claim 1, characterized in that: The protective cover (1) has a through groove in the middle of its interior, and the through groove is located at one end of the support block (2).

6. The molded case circuit breaker housing structure according to claim 1, characterized in that: The sealing cover (8) has a sealing gasket inside, and the size of the sealing gasket is adapted to the size of the inside of the protective cover (1).

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