CN219696369U - Plastic case circuit breaker with stable wiring - Google Patents

Abstract

The utility model discloses a molded case circuit breaker with stable wiring, which comprises a circuit breaker base, a shell assembled with the circuit breaker base and a wiring part arranged at the end part of the circuit breaker, wherein the base is provided with a conductive plate, a clamping groove for accommodating the conductive plate, a clamping structure for fixing a connecting wire and a guide groove matched with the clamping structure, a guide post is arranged in the guide groove, the clamping structure comprises a limit plate and a connecting lug, the connecting lug is arranged in the guide groove and sleeved with the guide post, and a through groove matched with the guide post is arranged on the connecting lug. The circuit breaker is provided with the clamping structure at the wiring end, so that the wire can be better crimped after being connected with the wire, the stability of short wire connection is greatly improved, and the circuit breaker is very reliable.

Description

Plastic case circuit breaker with stable wiring

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a plastic shell circuit breaker with stable wiring.

Background

The circuit breaker with plastic casing is one kind of electric appliance with manual switching function and automatic voltage loss, undervoltage, overload and short circuit protection. It can be used to distribute electric energy, not frequently start asynchronous motor, protect power supply circuit and motor, and can automatically cut off circuit when they have serious overload or short circuit and under-voltage faults, its function is equivalent to the combination of fuse switch and over-under-heating relay.

When the circuit breaker is connected with a circuit, the connecting wire is required to be connected with a connector of a circuit breaker wiring groove, so that current can be conveyed, current can be cut off through the circuit breaker, overload and short-circuit protection are realized, the existing circuit breaker is connected with the connecting wire, if the connecting wire shakes, the connecting wire and the connector are caused to be loose and unstable, the wiring effect is affected, the electric leakage condition occurs, and therefore the problem caused by the fact that the low-voltage molded case circuit breaker is connected is required to be solved.

Disclosure of Invention

First, the technical problem to be solved

In order to solve the problems, the utility model provides the molded case circuit breaker which has a simple structure and stable circuit and can not generate poor contact or electric leakage due to shaking of a connecting wire.

(II) technical scheme

The utility model discloses a molded case circuit breaker with stable wiring, which comprises a circuit breaker base, a shell assembled with the circuit breaker base and a wiring part arranged at the end part of the circuit breaker, wherein the base is provided with a conductive plate, a clamping groove for accommodating the conductive plate, a clamping structure for fixing a connecting wire and a guide groove matched with the clamping structure, a guide post is arranged in the guide groove, the clamping structure comprises a limit plate and a connecting lug, the connecting lug is arranged in the guide groove and sleeved with the guide post, and a through groove matched with the guide post is arranged on the connecting lug.

In the utility model, the guide post is also provided with a compression spring, the compression spring is sleeved on the guide post, one end of the compression spring is abutted with the top of the guide groove, and the other end of the compression spring is abutted with the top of the connecting lug.

In the utility model, the connecting lug and the limiting plate are of an integrated structure, and the limiting plate is made of an insulating material.

In the utility model, the clamping structure is arranged at the end part of the wiring part, the end part of the conducting plate is provided with a bulge, and the bottom of the limiting plate is provided with an arc-shaped groove matched with the bulge.

(III) beneficial effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) The circuit breaker is provided with the clamping structure on the wiring end, so that the wire can be better crimped after being connected, the stability of wire connection short is greatly improved, and the circuit breaker is quite reliable.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a molded case circuit breaker in embodiment 1;

fig. 2 is a schematic diagram showing a front view of a molded case circuit breaker according to embodiment 1;

fig. 3 is an enlarged schematic view of the partial structure a in embodiment 1.

10. The circuit breaker comprises a shell, 20, a circuit breaker base, 30, a wiring part, 40, a conducting plate, 50, clamping grooves, 60, guide grooves, 70, guide posts, 80, connecting lugs, 90, through grooves, 100, limiting plates, 110, protrusions, 120, arc-shaped grooves, 130 and clamping structures.

Detailed Description

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising," "comprising," or "having" and the like means that elements or items preceding the word are meant to be encompassed by the element or item recited following the word and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected" and the like are not limited to the physical or mechanical connection or communication shown in the drawings, but may include connection or communication equivalent thereto, whether direct or indirect. "upper", "lower", "left", "right", "horizontal", "vertical", etc. are only used to indicate a relative positional relationship, which may be changed accordingly when the absolute position of the object to be described is changed.

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

The utility model provides a moulded case circuit breaker of wiring stability as shown in fig. 1-3, includes circuit breaker base 20, with circuit breaker base 20 assembly's casing 10 and set up the wiring portion 30 at the circuit breaker tip, the base is equipped with conducting plate 40, holding conducting plate 40's draw-in groove 50, the joint structure 130 and the guide way 60 of cooperation joint structure 130 that are used for fixed connecting wire on wiring portion 30, be equipped with guide post 70 in the guide way 60, joint structure 130 includes limiting plate 100 and engaging lug 80, engaging lug 80 set up in guide way 60 with guide post 70 suit be equipped with on the engaging lug 80 with guide post 70 complex through groove 90.

Specifically, the guide post 70 is further provided with a compression spring, and the compression spring is sleeved on the guide post 70, wherein one end of the compression spring is abutted against the top of the guide groove 60, and the other end of the compression spring is abutted against the top of the connecting lug 80.

Preferably, the connecting lugs 80 and the limiting plate 100 are integrally formed, and the limiting plate 100 is made of an insulating material. The clamping structure 130 is disposed at the end of the wiring portion 30, and the end of the conductive plate 40 is provided with a protrusion 110, and the bottom of the limiting plate 100 is provided with an arc-shaped groove 120 matched with the protrusion 110, so that the limiting plate 100 better matches with the conductive plate 40 to support the wire, and the wire is prevented from falling off or loosening due to shaking.

When the wire is connected, the limiting plate 100 is only lifted upwards to connect the wire with the conductive plate 40, and then the limiting plate 100 is loosened to be pressed downwards to be in press fit with the wire under the action of the reset spring

The circuit breaker is equipped with joint structure 130 on the terminal to can be better carry out the crimping to the wire after connecting the wire, greatly improved the stability of wire link, it is very reliable.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.

Claims (4)

1. A moulded case circuit breaker with stable wiring,

the method is characterized in that:

including circuit breaker base (20), with casing (10) of circuit breaker base (20) equipment and set up wiring portion (30) at the circuit breaker tip, be equipped with draw-in groove (50) of current-conducting plate (40), holding current-conducting plate (40) on wiring portion (30), be used for fixed joint line's joint structure (130) and cooperation draw-in groove (60) of joint structure (130), be equipped with guide post (70) in guide groove (60), joint structure (130) include limiting plate (100) and engaging lug (80), engaging lug (80) set up in guide groove (60) with guide post (70) suit be equipped with on engaging lug (80) with guide post (70) complex logical groove (90).

2. The wire stabilized molded case circuit breaker of claim 1, wherein: the guide post (70) is further provided with a compression spring, the compression spring is sleeved on the guide post (70), one end of the compression spring is abutted to the top of the guide groove (60), and the other end of the compression spring is abutted to the top of the connecting lug (80).

3. The wire stabilized molded case circuit breaker of claim 1, wherein: the connecting lug (80) and the limiting plate (100) are of an integrated structure, and the limiting plate (100) is made of an insulating material.

4. The wire stabilized molded case circuit breaker of claim 1, wherein: the clamping structure (130) is arranged at the end part of the wiring part (30), the end part of the conducting plate (40) is provided with a protrusion (110), and the bottom of the limiting plate (100) is provided with an arc-shaped groove (120) matched with the protrusion (110).