Residual-current circuit breaker shell

Abstract

The utility model discloses a residual-current circuit breaker shell, and aims to solve the problem that a circuit board in the traditional design is inconvenient to maintain and is easily influenced by electric arcs. The shell comprises an outer shell body, the outer side of the outer shell body is provided with an installation chamber separated from the arc extinguish chamber, a circuit board is arranged in the installation chamber, the side wall of the installation chamber is provided with an opening used for taking out or putting in the circuit board, and the opening is provided with a sealing plate. The sealing plate is connected with the opening through a convenient-to-disassemble structure, and the convenient-to-disassemble structure comprises embedded feet on the periphery of the sealing plate and a warped opening on one side of the sealing plate. The outer shell is composed of an upper cover, a lower cover and a middle cover, the installation chamber is arranged on the middle cover, and a wiring groove is formed in one side of the installation chamber. And a separation step is arranged between the arc extinguish chamber and the mounting chamber. The circuit board is arranged in the independent mounting chamber, so that the maintenance process is simplified, the safety of the circuit board is enhanced, the reliability of the circuit breaker is improved, and the service life of the circuit breaker is prolonged.

Description

Technical Field

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

[0002] In traditional residual current circuit breaker designs, the circuit board is typically installed inside the breaker housing. This design presents several major issues. First, when the circuit breaker is damaged and requires repair, the upper and lower covers of the breaker housing must be removed and installed before accessing the circuit board for maintenance, a process that is inconvenient and time-consuming. Second, because the circuit board and the arc extinguishing chamber are housed in the same chamber, arcs could enter the circuit board, causing it to fail and impacting the circuit breaker's proper operation and service life.

[0003] In order to solve the above technical problems, the present application proposes a leakage circuit breaker housing to improve its maintenance convenience and reliability. Utility Model Content

[0004] In view of the deficiencies in the background technology, the utility model provides a leakage circuit breaker housing.

[0005] The technical solution adopted by the present invention is: a leakage circuit breaker casing, comprising an outer shell, an installation chamber separated from an arc extinguishing chamber is provided on the outer side of the outer shell, a circuit board is arranged in the installation chamber, an opening for taking out or putting in the circuit board is provided on the side wall of the installation chamber, and a sealing plate is provided on the opening.

[0006] Furthermore, the sealing plate and the opening are connected by a detachable structure.

[0007] Furthermore, the easy-to-disassemble structure includes engaging feet on the outer periphery of the sealing plate and a raised edge on one side of the sealing plate.

[0008] Furthermore, the outer shell includes an upper cover, a lower cover covering the upper cover, and a middle cover arranged between the upper cover and the lower cover, and the installation chamber is arranged on the middle cover.

[0009] Furthermore, one side of the installation chamber is provided with a wiring groove for routing the wires of the circuit board.

[0010] Furthermore, a separation step is provided between the arc extinguishing chamber and the installation chamber.

[0011] The beneficial effects of the utility model are:

[0012] 1. Improved maintenance convenience: An installation chamber separated from the arc extinguishing chamber is added to the outside of the outer shell, and a circuit board is set up in this installation chamber. At the same time, an opening is reserved on the side wall of the installation chamber. When the circuit board needs to be repaired or replaced, it can be operated directly through the opening without disassembling the entire circuit breaker shell. This greatly simplifies the maintenance process and saves time and labor costs.

[0013] 2. Enhanced safety of circuit boards: This application sets up a dedicated installation room to house circuit boards, and ensures that this installation room is separated from the arc extinguishing chamber. In this way, even if an arc is generated when the circuit breaker is working, it will not affect the circuit board, effectively avoiding damage to the circuit board caused by the arc, extending the service life of the circuit board, and also improving the overall working stability and safety of the circuit breaker.

[0014] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 This is an explosion diagram of the utility model.

[0017] Figure 3 Schematic diagram of the sealing structure.

[0018] Figure 4 Schematic diagram of the structure of the middle cover.

[0019] Figure 1-4 Middle: 1. Outer shell; 2. Arc extinguishing chamber; 3. Installation chamber; 4. Circuit board; 5. Opening; 6. Closing plate; 7. Fitting feet; 8. Warped edge; 9. Upper cover; 10. Lower cover; 11. Middle cover; 12. Wiring trough; 13. Partition step. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0022] The utility model provides a leakage circuit breaker casing.

[0023] In this embodiment, referring to Figure 1-4 The leakage circuit breaker casing includes an outer shell 1, and the outer side of the outer shell 1 has an installation chamber 3 separated from the arc extinguishing chamber 2. A circuit board 4 is arranged in the installation chamber 3, and an opening 5 for taking out or putting in the circuit board is provided on the side wall of the installation chamber 3, and a sealing plate 6 is provided on the opening.

[0024] In this technical solution, a mounting chamber, separate from the arc extinguishing chamber, is provided outside the outer shell of the leakage circuit breaker. The circuit board is housed within the mounting chamber, and an opening with a sealing plate is provided on the side wall of the mounting chamber, enabling rapid installation and removal of the circuit board. This design not only simplifies circuit board maintenance but also, by separating the mounting chamber from the arc extinguishing chamber, effectively prevents arcing from affecting the circuit board, improving the reliability of the circuit board and the overall performance of the circuit breaker.

[0025] Specifically, the sealing plate and the opening are connected by a detachable structure.

[0026] The cover and opening are connected by a removable structure, making it easier and faster to remove and insert circuit boards. This removable structure reduces the need for tools, allowing on-site operators to quickly replace or repair circuit boards, thereby improving maintenance efficiency and reducing maintenance costs.

[0027] The easy-to-disassemble structure can be connected by existing snap-on, hinged or screw connections, mainly to facilitate the disassembly and assembly of the cover plate.

[0028] Specifically, the easy-to-disassemble structure includes an engaging foot 7 on the outer periphery of the sealing plate and a raised edge 8 on one side of the sealing plate.

[0029] The easy-to-disassemble structure of this application utilizes a chimeric structure. Specifically, by providing chimeric feet on the periphery of the sealing plate and a tilting notch on one side of the sealing plate, a secure connection between the sealing plate and the opening is achieved, allowing for easy disassembly. This structure ensures the sealing plate is tightly closed while allowing the user to easily open the sealing plate without the use of tools, further simplifying the installation and removal of the circuit board. To disassemble, a rod-shaped tool is inserted into the tilting notch to tilt the sealing plate upward.

[0030] Specifically, the outer shell includes an upper cover 9 , a lower cover 10 covering the upper cover, and a middle cover 11 disposed between the upper cover and the lower cover, and the installation chamber is disposed on the middle cover 11 .

[0031] The outer shell is divided into an upper cover, a lower cover, and a middle cover located between them, with an installation compartment located in the middle cover. This structural design makes the circuit breaker assembly more modular. Each part can be manufactured independently and then assembled, which facilitates quality control during production and also facilitates subsequent maintenance and upgrades.

[0032] Specifically, one side of the installation chamber is provided with a wiring groove 12 for routing the wires of the circuit board.

[0033] A wiring trough is located on one side of the installation chamber for routing the circuit board wires. This design allows for orderly arrangement of wires, avoiding the risk of short circuits or other electrical problems caused by disorganized wiring. It also facilitates wire management and maintenance, ensuring a good connection between the circuit board and external interfaces.

[0034] Specifically, a separation step 13 is provided between the arc extinguishing chamber and the installation chamber.

[0035] A step separating the arc extinguishing chamber and the installation room further clarifies the boundary between the two spaces and increases physical isolation. This more effectively prevents arcs from entering the installation room, protecting the circuit boards from direct arc damage, thereby increasing the circuit board's service life and system stability.

[0036] Technical personnel please note: Although the utility model has been described according to the above specific implementation methods, the concept of the utility model is not limited to this utility model. Any modification using the concept of the utility model will be included in the scope of protection of this patent right.

Claims

1. A leakage circuit breaker housing, comprising an outer shell, characterized in that: The outer side of the outer shell is provided with an installation chamber separated from the arc extinguishing chamber, a circuit board is arranged in the installation chamber, and an opening for taking out or putting in the circuit board is provided on the side wall of the installation chamber, and a sealing plate is provided on the opening.

2. The leakage circuit breaker housing according to claim 1, characterized in that: The sealing plate and the opening are connected by adopting a disassembly structure.

3. The leakage circuit breaker housing according to claim 2, characterized in that: The easy-to-disassemble structure includes an engaging foot on the outer periphery of the sealing plate and a warped opening on one side of the sealing plate.

4. The leakage circuit breaker housing according to claim 1, characterized in that: The outer shell comprises an upper cover, a lower cover covering the upper cover, and a middle cover arranged between the upper cover and the lower cover, and the installation chamber is arranged on the middle cover.

5. The leakage circuit breaker housing according to claim 4, characterized in that: One side of the installation chamber is provided with a wiring groove for routing the wires of the circuit board.

6. The leakage circuit breaker housing according to claim 1 or 4, characterized in that: A separation step is provided between the arc extinguishing chamber and the installation chamber.

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