阅读说明：本技术 一种断路器的卡扣机构 (Buckle mechanism of circuit breaker ) 是由 兰云生 吴幼兵 吴绍吕 汪洋 于 2021-01-06 设计创作，主要内容包括：一种断路器的卡扣机构。其特征在于：基座上设有向下凸出的凸出部,基座前后两侧的侧面上设有水平设置的第一轨道槽以及至少一条纵向设置的第二轨道槽,第二轨道槽下部导通,上部连通第一轨道槽；卡板中部形成有中空部,卡板前后两侧的侧壁上设有第一卡台,第一卡台通过第二轨道槽插入到第一轨道槽内,并与第一轨道槽紧密卡合,凸出部对应设置于中空部内。其优点在于：断路器壳体底部增加了一个凸出部,从而增加了断路器壳体本身的内部空间,有利于断路器壳体内部的布局设计；针对该凸出部,卡板上对应形成中空部,安装卡板时,第一卡台首先沿第二轨道槽从下往上滑入,再沿第一轨道槽横向滑动,使其与第一轨道槽紧密卡合,卡板安装简单方便。(A latch mechanism of a circuit breaker. The method is characterized in that: the base is provided with a downward convex part, the side surfaces of the front side and the rear side of the base are provided with a first rail groove which is horizontally arranged and at least one second rail groove which is longitudinally arranged, the lower part of the second rail groove is communicated, and the upper part of the second rail groove is communicated with the first rail groove; the cardboard middle part is formed with well kenozooecium, is equipped with first calorie of platform on the lateral wall of both sides around the cardboard, and first calorie of platform inserts first track inslot through second track groove to with the inseparable block in first track groove, the bulge corresponds and sets up in well kenozooecium. The advantages are that: the bottom of the breaker shell is additionally provided with the protruding part, so that the internal space of the breaker shell is increased, and the internal layout design of the breaker shell is facilitated; to this bulge, correspond on the cardboard and form well kenozooecium, during the installation cardboard, first ka tai follows second track groove at first up the cunning from down, follows first track groove lateral sliding again, makes its and the inseparable block of first track groove, and the cardboard installation is simple and convenient.)

1. A buckling mechanism of a circuit breaker comprises a circuit breaker shell, wherein a base (1) is arranged at the bottom of the circuit breaker shell, and a clamping plate (2) is arranged on the base (1);

the method is characterized in that: a downward convex part (13) is arranged on the base (1), a first rail groove (11) which is horizontally arranged and at least one second rail groove (12) which is longitudinally arranged are arranged on the side surfaces of the front side and the rear side of the base (1), the lower part of the second rail groove (12) is communicated, and the upper part of the second rail groove is communicated with the first rail groove (11);

the middle of the clamping plate (2) is provided with a hollow part (24), the side walls (21) on the front side and the rear side of the clamping plate (2) are provided with first clamping platforms (22), the first clamping platforms (22) are inserted into the first track grooves (11) through the second track grooves (12) and tightly clamped with the first track grooves (11), and the protruding parts (13) are correspondingly arranged in the hollow part (24).

2. The latch mechanism of a circuit breaker according to claim 1, wherein: first track groove (11) switch on the setting towards the inboard one end of circuit breaker, still be equipped with second ka tai (23) on lateral wall (21) of cardboard (2), first track groove (11) are inserted from the one end that first track groove (11) switched on in second ka tai (23) to with the inseparable block in first track groove (11).

3. The latch mechanism of a circuit breaker according to claim 1, wherein: the base (1) is provided with a limiting boss (14), and the side surfaces of the front side and the rear side of the base are provided with neck openings (141) which are concave inwards; the clamp plate (2) is provided with two elastic clamp bodies (25) which are symmetrically arranged, the elastic clamp bodies (25) are provided with protrusions (251) corresponding to the neck openings (141), and the elastic clamp bodies (25) are fixedly clamped with the limiting bosses (14).

4. The latch mechanism of a circuit breaker according to claim 3, wherein: the limiting boss (14) is arranged at the outer side of the protruding part (13), and one side of the protruding part (13) corresponding to the limiting boss (14) is of an inclined plane or an arc structure; the end part of the elastic clamping body (25) forms an inclined surface structure corresponding to the bulge part (13).

5. The latch mechanism of a circuit breaker according to claim 3, wherein: guide inclined planes (142) are further formed on the side faces of the front side and the rear side of the limiting boss (14).

Technical Field

The invention relates to the field of circuit breakers, in particular to a buckling mechanism of a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening a current under a normal circuit condition, and closing, carrying, and opening a current under an abnormal circuit condition within a prescribed time. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur.

Along with the gradual realization of intellectuality of the power supply network of China, the requirement of national grid company to power supply unit is also more and more intelligent, and intelligent circuit breaker can real-time supervision power consumption condition, collects the power consumption information, can also remote control circuit breaker, carries out separating brake, combined floodgate operation to the circuit breaker, combines smart electric meter can also realize a series of operations such as arrearage automatic tripping operation outage, the automatic combined floodgate of charging power transmission.

However, in order to realize multi-functional intellectualization, more functional parts need to be correspondingly arranged in the breaker, which brings more difficulty to the layout design in the breaker shell, particularly, the miniature breaker has small size and more limited inner space of the shell.

Disclosure of Invention

In order to overcome the defects of the background art, the invention provides a buckling mechanism of a circuit breaker.

The technical scheme adopted by the invention is as follows: a buckling mechanism of a circuit breaker comprises a circuit breaker shell, wherein a base is arranged at the bottom of the circuit breaker shell, and a clamping plate is arranged on the base;

the base is provided with a downward convex part, the side surfaces of the front side and the rear side of the base are provided with a first rail groove which is horizontally arranged and at least one second rail groove which is longitudinally arranged, the lower part of the second rail groove is communicated, and the upper part of the second rail groove is communicated with the first rail groove; the middle part of the clamping plate is provided with a hollow part, the side walls of the front side and the rear side of the clamping plate are provided with first clamping tables, the first clamping tables are inserted into the first track grooves through the second track grooves and are tightly clamped with the first track grooves, and the protruding parts are correspondingly arranged in the hollow part.

The first track groove switches on the setting towards the inboard one end of circuit breaker, still be equipped with the second card platform on the lateral wall of cardboard, the second card platform inserts first track groove from the one end that first track groove switched on to with the inseparable block in first track groove.

The base is provided with a limiting boss, and the side surfaces of the front side and the rear side of the base are provided with neck openings which are sunken inwards; the clamp plate is provided with two elastic clamp bodies which are symmetrically arranged, the elastic clamp bodies are provided with bulges corresponding to the neck openings, and the elastic clamp bodies fixedly clamp the limiting bosses.

The limiting boss is arranged at the outer side of the protruding part, and one side of the protruding part corresponding to the limiting boss is of an inclined plane or an arc structure; the end of the elastic clamp body forms an inclined plane structure corresponding to the convex part.

Guide inclined planes are further formed on the side faces of the front side and the rear side of the limiting boss.

The invention has the beneficial effects that: the position of the bottom of the breaker shell, which corresponds to the clamping plate, is additionally provided with the protruding part, so that the internal space of the breaker shell is increased, and the internal layout design of the breaker shell is facilitated; to this bulge, correspond on the cardboard and form well kenozooecium, during the installation cardboard, its first ka tai follows second track groove at first up the cunning from down, follows first track groove lateral sliding again, makes its and the inseparable block of first track groove, and the cardboard installation is simple and convenient.

Drawings

Fig. 1 is a schematic structural diagram of a latch mechanism of a circuit breaker according to an embodiment of the present invention.

Fig. 2 is a partial schematic view of the position of the base at the bottom of the circuit breaker housing according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a circuit breaker card according to an embodiment of the invention.

Fig. 4 is a schematic bottom view of a latch mechanism of a circuit breaker according to an embodiment of the invention.

Fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Fig. 6 is a schematic diagram of an internal structure of a circuit breaker according to an embodiment of the present invention.

Detailed Description

The embodiments of the invention will be further described with reference to the accompanying drawings in which:

as shown in the figure, a buckle mechanism of circuit breaker, includes the circuit breaker casing, both ends all are equipped with base 1 about circuit breaker casing bottom, install cardboard 2 on the base 1.

The below that circuit breaker housing bottom corresponds base 1 is equipped with downward convex bulge 13, through this bulge 13 for the inner space of circuit breaker housing itself has further increased, more is favorable to the inside overall arrangement design of circuit breaker housing. For example, as shown in fig. 6, the position of the protrusion is just matched with the coil of the current transformer, and when the coil of the current transformer is installed, the protrusion can be locally arranged in the protrusion 13, so as to better improve the utilization rate of the space inside the casing, and facilitate the overall layout design. In addition, the side surfaces of the front side and the rear side of the base 1 are provided with a first rail groove 11 arranged horizontally and a second rail groove 12 arranged longitudinally, the lower part of the second rail groove 12 is communicated, and the upper part of the second rail groove is communicated with the first rail groove 11.

The middle part of the clamping plate 2 is provided with a hollow part 24, the side walls 21 of the front side and the rear side of the clamping plate 2 are provided with first clamping platforms 22, when the clamping plate 2 is installed, the first clamping platforms 22 can firstly slide in from bottom to top along the second track grooves 12, and then slide transversely along the first track grooves 11, so that the first clamping platforms 22 can be tightly clamped with the first track grooves 11, meanwhile, the protruding parts 13 are correspondingly arranged in the hollow part 24, the clamping plate 2 can be just in time matched with the protruding parts 13 at the bottom of the breaker shell, and the installation of the clamping plate 2 is very simple and convenient.

In order to further improve the installation stability of the clamping plate 2 and facilitate the installation of the clamping plate 2, the first track groove 11 is conducted towards one end of the inner side of the circuit breaker, a second clamping table 23 is further arranged on the side wall 21 of the clamping plate 2, and the second clamping table 23 is inserted into the first track groove 11 from one end of the first track groove 11 which is conducted, and is tightly clamped with the first track groove 11.

That is to say, cardboard 2 is established on the base 1 of circuit breaker casing bottom through inside-out slip card, consequently when installing the circuit breaker at the block terminal guide tracked, ensures that the slippage can not appear, moreover through a plurality of ka tai such as first ka tai 22, second ka tai 23 and the inseparable block of first track groove 11, the structure is more stable.

In addition, the base 1 is also provided with a limit boss 14, and the side surfaces of the front side and the rear side of the limit boss are provided with neck openings 141 which are concave inwards; the clamping plate 2 is provided with two elastic clamping bodies 25 which are symmetrically arranged, the elastic clamping bodies 25 are provided with bulges 251 corresponding to the neck openings 141, and the elastic clamping bodies 25 fixedly clamp the limiting bosses 14. The clamping plate 2 and the base 1 are further clamped and fixed with the limiting boss 14 through the elastic clamping body 25, so that the clamping plate 2 is more firmly installed.

The limiting boss 14 is arranged at the outer side position of the protruding part 13, and the protruding part 13 corresponds to an arc-shaped surface 131 on one side of the limiting boss 14; the end of the elastic card body 25 forms an inclined plane 252 corresponding to the protruding part 13, and during installation, the limiting boss 14 and the elastic card body 25 are guaranteed to have enough installation fit size through the arc-shaped surface 131 and the inclined plane 252, and meanwhile, the structure is guaranteed to be compact and reasonable.

The side surfaces of the front side and the rear side of the limiting boss 14 are also provided with guide inclined surfaces 142, and the installation is easier and more convenient due to the guide of the guide inclined surfaces 142.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The skilled person should understand that: although the invention has been described in terms of the above specific embodiments, the inventive concept is not limited thereto and any modification applying the inventive concept is intended to be included within the scope of the patent claims.