CN220138224U

CN220138224U - Insulation structure of binding post and circuit breaker

Info

Publication number: CN220138224U
Application number: CN202321493537.7U
Authority: CN
Inventors: 余中山; 齐继兵; 南泽斌
Original assignee: Zhejiang Yiteng Electric Technology Co ltd
Current assignee: Zhejiang Yiteng Electric Technology Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-12-05
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses an insulation structure of a wiring terminal and a circuit breaker, comprising a wiring frame, wherein the wiring frame comprises a left Bian Bi, a right wall, a lower wall and an upper wall, the left Bian Bi and the right wall are oppositely arranged, and the lower wall and the upper wall are oppositely arranged; the lower side wall is bent downwards to form a metal baffle; an insulating part is fixed on the metal baffle plate through a clamping hook, and the insulating part at least shields one side of the metal baffle plate facing the user wiring; the utility model has the characteristic of preventing the user from electric shock.

Description

Insulation structure of binding post and circuit breaker

Technical Field

The present utility model relates to circuit breakers, and in particular to terminals in circuit breakers.

Background

The binding post is very extensive in small-size circuit breaker use, and current binding post is along with the screw in the use twists, and binding post's wire frame can gradually shift up, and this can make the wiring hole department at the circuit breaker casing appear a gap. In order to shield the gap, the existing wire frame is often provided with a metal baffle plate which is bent downwards, so that the gap can be shielded, and a user is prevented from misplacing a wire into the gap. Although this structure can prevent the user from connecting the lead by mistake, the metal baffle is a conductive material after all, and has potential safety hazard.

Disclosure of Invention

Therefore, the utility model aims to overcome the defects in the prior art, and aims to provide an insulation structure of a wiring terminal, improve the safety performance and the like.

The utility model provides an insulating structure of a wiring terminal, which comprises a wiring frame, wherein the wiring frame comprises a left Bian Bi, a right side wall, a lower side wall and an upper side wall, the left Bian Bi and the right side wall are oppositely arranged, and the lower side wall and the upper side wall are oppositely arranged; the lower side wall is bent downwards to form a metal baffle; an insulating part is fixed on the metal baffle plate through a clamping hook, and the insulating part at least shields one side of the metal baffle plate facing the user wiring; the utility model has the characteristic of improving breaking capacity.

By adopting the structure, the insulating piece and the metal baffle are clamped by the clamping hooks, and the insulating piece at least shields one side of the metal baffle facing the user wiring, so that the insulating performance can be improved, and the electric shock risk is reduced.

The metal baffle comprises a neck connected with the wire frame and an edge part far away from the wire frame, and the insulating part is provided with a clamping hook at the neck and the edge part.

By adopting the structure, the metal baffle plate and the insulating piece can be assuredly increased in installation stability by using the clamping hook to clamp at least 2 positions of the metal baffle plate.

Wherein, at least one of the positions of the neck part and the edge part of the insulating piece is clamped by at least two clamping hooks.

By adopting the structure, the installation stability of the metal baffle and the insulating piece can be further improved.

The width dimension of the neck is smaller than that of the edge part, and the width dimension of the metal baffle plate is gradually increased from the neck to the edge part.

By adopting the design of the structure, the user can be prevented from being inserted into the gap by mistake during wiring, the material consumption can be reduced as much as possible, and the cost is reduced.

Wherein, the insulator is provided with the spacing portion that is laminated with this part in this nearby position department of neck to marginal portion.

By adopting the design of the limiting part, the stability and the accuracy of the installation of the insulating part can be improved.

The edge of the limiting part is provided with a guiding inclined plane for guiding the metal baffle to slide to a proper position when the metal baffle is installed.

By adopting the design of the guide inclined plane, even if the metal baffle plate presses the guide inclined plane during installation, the metal baffle plate can be guided to slide to a proper position by utilizing the guide wire inclined plane, so that the convenience of installation of the insulating part is improved.

Wherein, the back of insulating part has seted up the mounting groove that supplies the installation of metal separation blade, and the trip is located near the cell wall of mounting groove.

By adopting the structure, the insulator and the metal baffle are matched more tightly, and the total thickness of the insulator and the metal baffle after being matched is reduced.

The second chamfer surface is arranged on the clamping hook, so that the edge of the metal baffle sheet is pressed into the clamping hook in a fitting manner.

By adopting the structure, when the metal baffle and the clamping hook are installed, the second chamfer surface is utilized to slide into the clamping hook, so that the convenience of installation of the metal baffle and the insulating part is facilitated.

Wherein, the insulating part is provided with the fracture near every trip to the trip provides the deformation allowance when the metal separation blade assembly.

By adopting the structure, the hook can be deformed more easily through the design of the fracture, and the convenience of product installation is improved.

The circuit breaker comprises a shell, wiring holes are formed in two sides of the shell, and the insulating structure of the wiring terminal is arranged in the wiring holes.

The circuit breaker adopting the structure utilizes the clamping hook to clamp the insulating piece and the metal baffle, and the insulating piece at least shields one side of the metal baffle facing the user wiring, thus the insulating performance can be improved, and the electric shock risk is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic diagram of a circuit breaker according to embodiment 1 of the present utility model;

fig. 2 shows a schematic structural view of a middle connection terminal of embodiment 1 of the present utility model;

fig. 3 to 4 are schematic structural views showing an insulating member according to embodiment 1 of the present utility model;

fig. 5 shows a schematic diagram of the terminal and insulator of embodiment 1 of the present utility model after assembly.

Description of the embodiments

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

As shown in fig. 1 to 5, an embodiment of the present utility model provides a circuit breaker, which includes:

the housing 1 has a substantially convex structure, wiring holes 11 are provided in both left and right side surfaces of the housing 1, and wiring terminals 2 are provided in the wiring holes 11, and since the wiring terminals 2 at both positions have a similar structure, the description will be given taking the wiring terminal 2 at the left side as an example.

Binding post 2, including wire frame 21, binding screw 22 and wire bank 23, wire screw 22 wears to establish at wire bank 23 and wire frame's upper edge wall 21a, can make wire frame 21 take place the removal on the vertical direction through twisting the binding screw 22, and this kind of transmission principle belongs to the common sense of this field, and this kind of transmission principle is not repeated here.

The wire frame 21 includes left Bian Bi, right wall, lower wall 21b and upper wall, left Bian Bi sets up with right wall is relative, lower wall 21b sets up with upper wall is relative, and the both sides of lower wall 21b link to each other with left Bian Bi and right wall respectively, and the both sides of upper wall link to each other with left Bian Bi and right wall respectively.

The lower side wall 21b of the wire frame is provided with a metal flap 3 bent downward toward one side of the wire hole 11 (the side through which the user is threaded).

The metal flap 3 has a neck portion 31 connected to the lower edge wall 21b of the wire frame and an edge portion 32 furthest from the wire frame 21, the width dimension of the metal flap 3 increasing from the neck portion 31 to the edge portion 32.

The back of the insulator 4 is provided with a mounting groove 41, and the metal baffle 3 is positioned in the mounting groove 41.

The mounting groove 41 is formed by the lower protrusion 41a and the two limiting parts 41b, after the metal retainer 3 is mounted, the lower protrusion 41a is arranged near the edge part 32, the two limiting parts 41b are separately arranged at the connecting position of the neck part 31 and the edge part 32, and the limiting parts 41b are attached to the connecting position.

In this embodiment, the insulating member 4 and the metal shielding plate 3 are fixed by using hooks, and a specific fixing manner is that two first hooks 41a1 are disposed on the lower protrusion 41a, and the first hooks 41a1 hook the edge portion 32. A second hook 41b1 is provided near both of the limiting portions 41b, and the second hook 41b1 hooks the neck 31. Here, the second chamfer surface 41ab is provided on either the first hook 41a1 or the second hook 41b1, so that the second chamfer surface 41ab is designed, when the metal baffle 3 is installed, the edge of the metal baffle 3 can press against the second chamfer surface 41ab to push the hook to deform, and the metal baffle 3 enters the hook to be hooked by the hook. Here, in order to facilitate the deformation of the first hook 41a1 and the second hook 41b1, a first fracture 41a2 (through-groove structure) is further provided at a position of the insulating material 4 close to the first hook 41a1, and a second fracture 41b2 (also through-groove structure) is provided at a position of the insulating material 4 close to the second hook 41b 1.

In order to facilitate the installation of the metal baffle 3 into the installation groove 41, a guiding inclined surface 41bb is arranged on one side of the two limiting parts 41b close to the groove, so that the metal baffle 3 can enter the installation groove 41 by using the guiding inclined surface 41bb even if being pressed on the guiding inclined surface 41bb during the installation, and the installation is completed.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. The insulating structure of the wiring terminal comprises a wiring frame, wherein the wiring frame comprises a left Bian Bi, a right wall, a lower wall and an upper wall, the left Bian Bi and the right wall are oppositely arranged, and the lower wall and the upper wall are oppositely arranged; the lower side wall is bent downwards to form a metal baffle; the method is characterized in that: an insulating part is fixed on the metal baffle plate through a clamping hook, and the insulating part at least shields one side of the metal baffle plate facing the user wiring.

2. The insulation structure of a connection terminal according to claim 1, wherein: the metal separation blade includes the neck and keeps away from the edge portion of wire frame with the wire frame connection, the insulating part all has trip looks card at neck and edge portion.

3. The insulation structure of a connection terminal according to claim 2, wherein: the insulator is clamped at least one of the neck part and the edge part by at least two clamping hooks.

4. The insulation structure of a connection terminal according to claim 2, wherein: the width dimension of the neck is smaller than that of the edge part, and the width dimension of the metal baffle plate is gradually increased from the neck to the edge part.

5. The insulation structure of a connection terminal according to claim 4, wherein: the insulating piece comprises a limiting part, the limiting part is arranged at the connecting position of the neck part of the metal baffle and the edge part of the metal baffle, and the limiting part is attached to the connecting position.

6. The insulation structure of a connection terminal according to claim 5, wherein: the edge position of the limiting part is provided with a guiding inclined plane for guiding the metal baffle to slide to a proper position when the metal baffle is installed.

7. The insulation structure of a connection terminal according to claim 1, wherein: the back of the insulating piece is provided with an installation groove for installing the metal baffle, and the clamping hook is positioned near the groove wall of the installation groove.

8. An insulation structure of a connection terminal according to any one of claims 1 to 5, wherein: the clamping hook is provided with a second chamfer surface so that the edge of the metal baffle sheet is pressed into the clamping hook in a fitting manner.

9. An insulation structure of a connection terminal according to any one of claims 1 to 5, wherein: the insulating part is provided with a fracture near each clamping hook so that the clamping hooks can provide deformation allowance when the metal baffle plates are assembled.

10. The utility model provides a circuit breaker, its includes the casing, and the casing both sides all are provided with wiring hole, its characterized in that: an insulating structure of a connection terminal as claimed in any one of claims 1 to 9 is provided in the connection hole.