Quick-release connecting structure of modular molded case circuit breaker in energy storage system
By adopting a snap-fit connection structure in the modular molded case circuit breaker, the problem of requiring tools for disassembly in the prior art is solved, achieving the effect of quick disassembly and installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-20
AI Technical Summary
Existing modular molded case circuit breakers require the use of a specific type of screwdriver or wrench for disassembly, making disassembly inconvenient.
The modular molded case circuit breaker adopts a snap-fit connection structure, which uses a combination of baffles, slide rails, threaded holes and pressure rods to achieve quick-release connection, eliminating the need for tools.
It enables rapid installation and removal of modular molded case circuit breakers without the need for tools, thus improving disassembly efficiency.
Smart Images
Figure CN224020707U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to circuit breaker technical field, concretely is a kind of quick-release connection structure of modularization plastic shell circuit breaker in energy storage system. BACKGROUND
[0002] Circuit breaker is a kind of safety device for protecting circuit, main function is when overload, short circuit or ground fault in circuit, automatically cut off current, prevent equipment damage or fire risk.It triggers tripping mechanism by detecting abnormal current (such as overcurrent or short-circuit current), rapidly disconnects circuit, ensures the safety of electrical system and electrical equipment.And because the current in energy storage system is larger, switch frequently, the probability of damage, fault is much larger than common household circuit breaker, therefore, it is mostly to adopt modularization circuit breaker, it is convenient to replace the part of internal damage, and the modularization plastic shell circuit breaker of existing is mostly connected by bolt when installing and disassembling, needs to match different screwdriver or spanner when disassembling, it is more troublesome to use, therefore design a kind of quick-release connection structure of modularization plastic shell circuit breaker in energy storage system, to solve the above problems. SUMMARY
[0003] (I) technical problem solved
[0004] In view of the deficiencies of prior art, the utility model provides a kind of quick-release connection structure of modularization plastic shell circuit breaker in energy storage system, solve the problem that the modularization plastic shell circuit breaker of existing needs to match corresponding model screwdriver or spanner when maintaining, disassembling, makes it more inconvenient to disassemble.
[0005] (II) technical scheme
[0006] To achieve the above object, the utility model is realized by the following technical scheme:
[0007] This utility model provides a quick-release connection structure for a modular molded case circuit breaker in an energy storage system, comprising: a hollow shell with an open top; a baffle rotatably connected to the rear end of the shell; an array of slide rails connected to the lower front side of the shell's interior; an arc-extinguishing chamber unit slidably connected to the slide rails; a slot on the lower rear side of the shell's interior, into which a tripping module is engaged; limit plates on both sides of the conductive interface at the upper rear end of the arc-extinguishing chamber unit; the conductive interface at the lower front end of the tripping module being inserted into the limit plates; the wire interface of the arc-extinguishing chamber unit extending to the interior of the front end of the shell; the wire interface at the rear end of the tripping module being inserted into the interior of the baffle; an array of threaded holes on the interior of the front end of the shell and the slide rails; a pressure rod threadedly connected to the interior of each threaded hole; the position of the threaded holes being opposite to the positions of the wire interfaces of the arc-extinguishing chamber unit and the tripping module; and an end cap on the upper end of the shell, which is fastened to the upper ends of the shell and the baffle.
[0008] Preferably, a fixing plate is inserted and connected inside the upper surface of the outer shell, and oblique slots are provided at the upper front end of the outer shell and the upper rear end of the baffle. The front and rear sides of the fixing plate are inserted and connected to the inside of the oblique slots.
[0009] Preferably, a copper spring is fixedly connected to the upper end of the conductive interface of the arc-extinguishing chamber unit.
[0010] Preferably, the lower end diameter of the pressure rod is smaller than the diameter of the wire end interface, and a hole is opened at the lower end of the wire interface between the arc extinguishing chamber unit and the tripping module, and the lower end of the pressure rod is inserted into the hole.
[0011] Preferably, the lower end of the pressure rod has a chamfer around its outer perimeter, and the length of the lower end of the pressure rod is less than the depth of the lower end hole inside the wire interface between the arc extinguishing chamber unit and the tripping module.
[0012] Preferably, the outer shell, pressure rod, end cap, and fixing plate are all made of plastic.
[0013] Preferably, the rear end of the outer casing is provided with an expansion slot, and the left and right sides of the expansion slot are provided with insertion ports.
[0014] (III) Beneficial Effects
[0015] This utility model provides a quick-release connection structure for a modular molded case circuit breaker in an energy storage system, which has at least the following advantages compared with the prior art:
[0016] The modular molded case circuit breaker in this energy storage system has a quick-release connection structure. During installation and disassembly, the internal modules are connected by snaps and mutually restrain each other to fix them in place, eliminating the need to carry matching tools for disassembly. Attached Figure Description
[0017] Figure 1 It is the exploded view of the utility model structure schematic drawing;
[0018] Figure 2 It is the exploded view of the utility model;
[0019] Figure 3 It is the rear side view of the utility model;
[0020] Figure 4 It is the utility model partial enlarged view.
[0021] In the drawing: 1, shell;2, baffle;3, slide rail;4, arc extinguishing chamber unit;5, tripping module;6, limit plate;7, press bar;8, end cover;21, copper spring;22, fixed plate;23, expansion slot. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0023] Please refer to Figure 1-4 The utility model provides a kind of technical solutions: a kind of quick release connection structure of modularization plastic shell circuit breaker in energy storage system, it includes: the hollow shell 1 of upper end opening, the rear end of the shell 1 is rotatably connected with baffle 2, the inside lower end front side of the shell 1 is connected with slide rail 3 in array, the slide rail 3 is slidably connected with arc extinguishing chamber unit 4, the inside rear end lower side of the shell 1 is provided with clamping groove, the clamping groove is connected with tripping module 5, the conductive interface of the rear side upper end of arc extinguishing chamber unit 4 is provided with limit plate 6 on both sides, the conductive interface of the front side upper end lower side of tripping module 5 is inserted into connection with limit plate 6, the wire interface of arc extinguishing chamber unit 4 extends to the inside of the front end of shell 1, the wire interface of the rear end of tripping module 5 is inserted into connection with the inside of baffle 2, the inside of the front end of shell 1 and the inside of slide rail 3 are provided with threaded hole in array, the threaded hole is connected with press bar 7 by screw thread, the position of threaded hole is opposite to the wire interface position of arc extinguishing chamber unit 4 and tripping module 5, the upper end of the shell 1 is provided with end cover 8, the upper end of end cover 8, shell 1 and baffle 2 are connected by buckle.
[0024] In use, the baffle 2 is pulled open, and then the arc extinguishing chamber unit 4 is pushed forward, and the lower ends of the arc extinguishing chambers between adjacent ones are inserted into connection with the two sides of the slide rail 3, when pushed to the end, the lower end of the trip module 5 is aligned with the inside of the clamping groove at the lower end inside the shell 1, the connecting rod at the front end of the trip module 5 is inserted into connection with the butt joint groove inside the rear end of the arc extinguishing chamber unit 4, then the conductive interfaces at the front end of the trip module 5 are inserted into connection with the conductive interfaces at the upper end of the rear side of the arc extinguishing chamber unit 4, then the baffle 2 is closed, the groove inside the baffle 2 is arranged outside the wire interface of the trip module 5, and then the end cover 8 is closed to complete the installation, when the wires need to be connected, the wires are placed on the wire interfaces, and then the pressing rod 7 is rotated downward to connect the two wires.
[0025] As shown in Figure 1-3 the utility model embodiment provides an implementation mode, based on above implementation mode, the upper surface inside insertion connection has fixed plate 21 of shell 1, the upper end of shell 1 front side and the upper end of baffle 2 rear side all are provided with inclined clamping groove, the front and rear sides of fixed plate 21 are inserted into connection with the inside of inclined clamping groove.
[0026] It can be known from the above structure that, after the arc extinguishing chamber unit 4 and the trip module 5 are completed, the fixed plate 21 is placed on the top, and when the baffle 2 is closed, the inclined interface will press the fixed plate 21 downward, and at the same time, a certain insulation effect can be achieved.
[0027] As shown in Figure 1-2 the utility model embodiment provides an implementation mode, based on above implementation mode, the conductive interface upper end of arc extinguishing chamber unit 4 is fixedly connected with copper spring 22.
[0028] It can be known from the above structure that, when the fixed plate 21 is pressed downward, the conductive interface of the trip module 5 will be pressed on the copper spring 22, to ensure the stability of the connection.
[0029] As shown in Figure 1-3 the utility model embodiment provides an implementation mode, based on above implementation mode, the lower end diameter of pressing rod 7 is less than the diameter of wire end interface, the inside lower end of wire interface of arc extinguishing chamber unit 4 and trip module 5 is provided with hole, and the lower end of pressing rod 7 is inserted into connection with the inside of hole.
[0030] It can be known from the above structure that the lower end of the pressing rod 7 is inserted into the hole inside the wire and the wire interface, and the upper end has a larger diameter and is pressed outside the end of the wire, so that the position of the wire is fixed and not easy to be pulled out.
[0031] As shown in Figure 1-3As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0032] As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0033] As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5. Figure 1-3 As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0034] As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0035] As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5. Figure 1-4 As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0036] As shown in the utility model embodiment, the lower end of the pressure rod 7 is provided with a chamfer on the outer side of the lower end, and the length of the lower end of the pressure rod 7 is less than the depth of the lower end hole in the wire interface of the arc extinguishing chamber unit 4 and the trip module 5.
[0037] It should be noted that, in this document, the terms "one", "another", "an", "some" and "at least one" are used to describe various embodiments. These terms are not intended to necessarily denote a singular noun or its plural. In addition, the terms "comprise", "comprising", "include", "including" or any other variation thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles or apparatuses that include a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or apparatuses.
[0038] Although the embodiments of the utility model have been shown and described, it should be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-release connection structure for a modular molded case circuit breaker in an energy storage system, characterized in that, include: A hollow shell (1) with an open top has a baffle (2) rotatably connected to its rear end. A slide rail (3) is arrayed on the lower front side of the interior of the shell (1). An arc-extinguishing chamber unit (4) is slidably connected to the slide rail (3). A slot is provided on the lower rear side of the interior of the shell (1), and a tripping module (5) is engaged inside the slot. Limiting plates (6) are provided on both sides of the conductive interface at the upper rear end of the arc-extinguishing chamber unit (4). The conductive interface at the lower front end of the tripping module (5) is inserted into the limiting plate (6). The wire interface of the arc-extinguishing chamber unit (4) extends to the interior of the front end of the housing (1). The wire of the back end of the tripping module (5) is inserted into the interior of the baffle (2). The interior of the front end of the housing (1) and the interior of the slide rail (3) are provided with threaded holes in an array. The interior of the threaded holes is connected to a pressure rod (7) by a thread. The position of the threaded holes is opposite to the position of the wire interface of the arc-extinguishing chamber unit (4) and the tripping module (5). An end cap (8) is provided at the upper end of the housing (1). The end cap (8) is connected to the upper end of the housing (1) and the baffle (2) by a snap fastener.
2. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 1, characterized in that: A fixing plate (21) is inserted and connected inside the upper surface of the outer shell (1). The upper front end of the outer shell (1) and the upper rear end of the baffle (2) are both provided with oblique slots. The front and rear sides of the fixing plate (21) are inserted and connected inside the oblique slots.
3. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 1, characterized in that: A copper spring (22) is fixedly connected to the upper end of the conductive interface of the arc-extinguishing chamber unit (4).
4. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 1, characterized in that: The lower end diameter of the pressure rod (7) is smaller than the diameter of the wire end interface. The lower end of the wire interface between the arc extinguishing chamber unit (4) and the tripping module (5) is provided with a hole. The lower end of the pressure rod (7) is inserted into the hole.
5. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 4, characterized in that: The lower end of the pressure rod (7) is chamfered around its outer perimeter. The length of the lower end of the pressure rod (7) is less than the depth of the lower end hole inside the wire interface of the arc-extinguishing chamber unit (4) and the tripping module (5).
6. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 2, characterized in that: The outer shell (1), pressure rod (7), end cap (8) and fixing plate (21) are all made of plastic.
7. The quick-release connection structure of a modular molded case circuit breaker in an energy storage system according to claim 1, characterized in that: The rear end of the outer shell (1) is provided with an expansion slot (23), and the left and right sides of the expansion slot (23) are provided with insertion ports.