Phase partition structure of molded case circuit breaker
By designing a customizable plastic case circuit breaker phase partition structure, the existing phase partition plate is solved, and the effect of low cost, convenient use and meeting electrical gap requirements is achieved.
Patent Information
- Application Number
- CN202420388658.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-02-28
AI Technical Summary
The existing plastic case circuit breaker phase partition plates are expensive and cannot be customized according to the actual direction of the distribution branch bus, resulting in inconvenient use and inability to meet the safety requirements of electrical clearance.
A structure including a plastic shell circuit breaker, a mounting plate and an L-shaped bent phase spacer plate is designed. The mounting plate is equipped with a through-line hole and a phase spacer plate slot. The phase spacer plate can be customized according to the direction of the branch busbar. The material is plexiglass to ensure insulation characteristics.
It realizes the customized design and installation of phase spacer panels, reduces costs, improves the convenience of use, and meets the electrical clearance requirements of electrical equipment and enhances safety.
Smart Images
Figure CN222619656U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a phase partition structure of a molded case circuit breaker, belonging to the technical field of electrical equipment. Background Art
[0002] With the development of technology in the power industry, in order to improve the utilization rate per unit area and reduce construction costs, various distribution equipment are now developing towards miniaturization. The molded case circuit breakers commonly used in the low-voltage distribution field are also like this. However, while miniaturizing, they must also meet the requirements for electrical clearance in GB7251.12-2013 "Low-voltage complete switchgear and control equipment Part 1: General" (Table 1 "Minimum electrical clearance in air"). This allows equipment manufacturers to make the electrical clearance infinitely close to the minimum limit required by the standard when designing miniaturized equipment. However, for users, for safety reasons, in order to compensate for the impact of assembly errors and pollution levels on electrical clearance, molded case circuit breaker products generally require the addition of phase partitions between phases to avoid insufficient phase electrical clearance. Molded case circuit breaker manufacturers will also provide optional phase partitions, but this type of phase partition is not only expensive, but also has a small protection area and cannot be customized according to the actual direction of the distribution branch bus, making it inconvenient to use. Utility Model Content
[0003] The purpose of the utility model is to propose a phase partition structure for a molded case circuit breaker in view of the problems existing in the prior art. The structure has low cost and can be designed and processed by low-voltage complete equipment manufacturers according to the actual direction of the distribution branch busbar. The structure is easy to use and meets the electrical clearance requirements of electrical equipment.
[0004] In order to achieve the above purpose, the utility model provides a phase partition structure of a molded case circuit breaker, including a molded case circuit breaker, a housing of the molded case circuit breaker is provided with a first phase partition slot, the molded case circuit breaker is fixed on a mounting plate, the mounting plate is provided with a wire hole for passing a branch bus, second phase partition slots are provided on both sides of the wire hole, and phase partitions are arranged in the first phase partition slot and the second phase partition slot.
[0005] Furthermore, the mounting plate has bends on both sides, mounting holes for fixing to the low-voltage cabinet are provided on the bends, a plastic shell mounting hole is provided on the front of the mounting plate, and a wire passing hole is provided on the outer side of the plastic shell mounting hole.
[0006] The phase partition has an L-shaped bend, and the bend cooperates with the mounting plate to play a limiting role. The width of the phase partition cooperates with the second phase partition slot. The size of the phase partition cooperates with the direction of the branch bus. The material of the phase partition is organic glass, which has good insulation properties and saves material procurement time.
[0007] The positions of the first phase partition slot and the second phase partition slot are matched to facilitate fixing the phase partition.
[0008] The utility model has a simple structure and is easy to install and use. Its beneficial effect is that the size and length of the phase partition can be customized according to the actual direction of the branch busbar, which is safer and more convenient and meets the electrical clearance requirements of electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The utility model is further described below in conjunction with the accompanying drawings.
[0010] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0011] Figure 2 for Figure 1 Schematic diagram of the structure of the molded case circuit breaker.
[0012] Figure 3 for Figure 1 Schematic diagram of the structure of the mounting plate.
[0013] Figure 4 for Figure 1 Schematic diagram of the structure of the middle phase partition. DETAILED DESCRIPTION Example
[0014] The structure of this embodiment is as follows Figure 1-4 As shown, a phase partition structure of a molded case circuit breaker includes a molded case circuit breaker 1, a housing of the molded case circuit breaker 1 is provided with a first phase partition slot 1-1, the molded case circuit breaker 1 is fixed on a mounting plate 2, the mounting plate 2 is provided with a wire hole 2-3 for passing a branch bus 4, and second phase partition slots 2-4 are provided on both sides of the wire hole 2-3, and a phase partition 3 is arranged in the first phase partition slot 1-1 and the second phase partition slot 2-4. The molded case circuit breaker 1 is a common model on the market, and an original first phase partition slot 1-1 is provided in its housing. The mounting plate 2 is formed by bending sheet metal material, and is provided with mounting holes 2-1 on both sides for fixing the mounting plate in the low voltage cabinet; the front is provided with a molded case mounting hole 2-2, which matches the molded case circuit breaker 1 and is used to fix the molded case circuit breaker; the front is provided with a wire hole 2-3, whose position matches the molded case circuit breaker 1, and is used to lead the branch bus 4 out of the molded case circuit breaker 1; the wire hole 2-3 is provided with a second phase partition card slot 2-4 on both sides, whose position matches the position of the original first phase partition card slot 1-1 of the molded case circuit breaker 1, and is used to fix the phase partition 3. The phase partition 3 is formed by bending organic glass, has good insulation properties, and its width matches the spacing of the second phase partition card slot 2-4 in the mounting plate 2, and is provided with a bend 3-1, which cooperates with the mounting plate 2 to play a limiting role.
[0015] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.
Claims
1. A phase partition structure of a molded case circuit breaker, comprising a molded case circuit breaker, wherein the housing of the molded case circuit breaker is provided with a first phase partition slot, characterized in that: The molded case circuit breaker is fixed on a mounting plate, which is provided with a wire hole for passing a branch busbar, and second phase partition slots are provided on both sides of the wire hole, and phase partitions are placed in the first phase partition slot and the second phase partition slot.
2. The phase partition structure of the molded case circuit breaker according to claim 1, characterized in that: The mounting plate has bends on both sides, and mounting holes for fixing to the low-voltage cabinet are provided on the bends. A plastic shell mounting hole is provided on the front of the mounting plate, and a wire passing hole is provided on the outer side of the plastic shell mounting hole.
3. The phase partition structure of the molded case circuit breaker according to claim 1, characterized in that: The phase partition has an L-shaped bend, and the width of the phase partition matches the second phase partition slot.
4. The phase partition structure of the molded case circuit breaker according to claim 3, characterized in that: The size of the phase partition is matched with the direction of the branch bus.
5. The phase partition structure of the molded case circuit breaker according to claim 3, characterized in that: The phase partition is made of organic glass.
6. The phase partition structure of a molded case circuit breaker according to claim 1, characterized in that: The first phase partition card slot matches the second phase partition card slot.