CN218471876U

CN218471876U - Thermal tripping assembly of miniature circuit breaker

Info

Publication number: CN218471876U
Application number: CN202222809678.7U
Authority: CN
Inventors: 郑万余; 陈亦凯
Original assignee: Zhejiang Yuda Electric Co ltd
Current assignee: Zhejiang Yuda Electric Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-02-10
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to a miniature circuit breaker's thermal tripping assembly, a serial communication port, including yoke and two gold sheets, the yoke includes curb plate one, curb plate two and bottom plate, curb plate one sets up perpendicularly in the both ends of bottom plate with curb plate two, the bottom plate is close to the position of curb plate one is provided with the through-hole, curb plate one forms the conducting strip in the through-hole bottom, the one end of two gold sheets is fixed in on the conducting strip, be provided with joint portion on the conducting strip, the one end joint of two gold sheets in the draw-in groove that joint portion formed and welding. The utility model discloses a set up joint portion, realize the preliminary fixed of two gold sheets before the welding, then welding, just avoided the manual work to fix the skew problem of bringing.

Description

Thermal tripping assembly of miniature circuit breaker

Technical Field

The utility model relates to a miniature circuit breaker technical field especially relates to a miniature circuit breaker's hot dropout subassembly.

Background

Small circuit breakers typically have overload and short circuit protection functions. The overload protection function is that the bimetallic strip rises in temperature when the circuit is overloaded, and the bimetallic strip bends along with the rise of the temperature of the bimetallic strip so as to trigger a tripping mechanism to trip the circuit breaker, thereby breaking a current loop and realizing the purpose of overload trip protection. The existing thermal trip regulating assembly consists of a bimetallic strip and a bracket for supporting the bimetallic strip, wherein the thermal trip bracket comprises a wiring board, a flexible connecting board and a magnetic yoke which are welded together in sequence; secondly, the existing bimetallic strip needs to be connected with the coil through a flexible connecting wire, the connection is also realized through welding, but the problem that the flexible connecting wire is not easy to fix exists during welding; in view of the foregoing, there is a need for a thermal trip assembly that can ensure stability during welding.

Disclosure of Invention

An object of the utility model is to provide a miniature circuit breaker's hot dropout subassembly to solve above-mentioned technical problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a miniature circuit breaker's thermal trip subassembly, its characterized in that includes yoke and two gold sheets, the yoke includes curb plate one, curb plate two and bottom plate, curb plate one sets up perpendicularly in the both ends of bottom plate with curb plate two, the bottom plate is close to the position of curb plate one is provided with the through-hole, curb plate one forms the conducting strip in the through-hole bottom, the one end of two gold sheets is fixed in on the conducting strip, be provided with joint portion on the conducting strip, the one end joint of two gold sheets in the draw-in groove that joint portion formed and welding.

The utility model discloses further set up, the curb plate is close to one side of two gold pieces is provided with the recess, be provided with the spring in the recess, the one end of spring weld in the recess, one end welds on two gold pieces in addition.

The utility model discloses further set up, still be provided with the arrangement hole on the two gold sheets, the arrangement hole is used for connecting coil, and the coil passes through the flexible connecting line to be connected with two gold sheets, and the one end of flexible connecting line is passed behind the arrangement hole and is fixed in the gold sheet with the tip of flexible connecting line through the welding.

The utility model discloses a following at least one beneficial effect:

1, the clamping part is arranged to realize the preliminary fixing of the double-gold-plated sheet before welding, and then the welding is carried out, so that the offset problem caused by manual fixing is avoided;

and 2, secondly, arranging a spring to limit the double-gold-piece.

3, arranging a placing hole, welding the flexible connecting line after preliminarily fixing the flexible connecting line, and simultaneously improving the stability of the flexible connecting line after welding and preventing the flexible connecting line from falling off easily.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Reference numeral, 10, a yoke; 101. a first side plate; 102. a second side plate; 103. a base plate; 1031. a through hole; 20. honeysuckle flower and honeysuckle flower; 30. a conductive sheet; 40. a clamping part; 401. a clamping groove; 50. a groove; 60. a spring; 70. placing the hole;

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1-2, the utility model relates to a miniature circuit breaker's thermal trip subassembly, including yoke 10 and two gold sheets 20, yoke 10 includes first 101, two 102 and bottom plates of curb plate 103, first 101 of curb plate and two 102 perpendicular settings in the both ends of bottom plate 103, bottom plate 103 is close to the position of a 101 of curb plate is provided with through-hole 1031, a 101 of curb plate forms conducting strip 30 in through-hole 1031 bottom, two gold sheets 20's one end is fixed in on the conducting strip 30, be provided with joint portion on the conducting strip 30, two gold sheets 20's one end joint in the draw-in groove that joint portion formed and welding.

One side of the first side plate 101, which is close to the bimetallic strip 20, is provided with a groove 50, a spring 60 is arranged in the groove 50, one end of the spring 60 is welded in the groove 50, and the other end of the spring is welded on the bimetallic strip 20. Still be provided with on two gold sheets 20 and place hole 70, place hole 70 is used for connecting the coil, and the coil passes through the flexible connecting line and is connected with two gold sheets 20, and the one end of flexible connecting line is fixed in the gold sheet through welding with the tip of flexible connecting line after passing and placing hole 70.

The utility model realizes the preliminary fixation of the bimetallic strip 20 before welding by arranging the clamping part, and then avoids the offset problem caused by manual fixation when welding; and secondly, a spring 60 is arranged to limit the double gold plate 20. Set up the mounting hole 70, weld after tentatively fixing the flexible connecting wire, also can improve the flexible connecting wire stability after the welding simultaneously, be difficult for droing.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in articles of commerce or systems including such elements.

The foregoing description shows and describes several preferred embodiments of the present invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, and is not to be construed as excluding other embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. The utility model provides a miniature circuit breaker's thermal trip subassembly, its characterized in that includes yoke and two gold sheets, the yoke includes curb plate one, curb plate two and bottom plate, curb plate one sets up perpendicularly in the both ends of bottom plate with curb plate two, the bottom plate is close to the position of curb plate one is provided with the through-hole, curb plate one forms the conducting strip in the through-hole bottom, the one end of two gold sheets is fixed in on the conducting strip, be provided with joint portion on the conducting strip, the one end joint of two gold sheets in the draw-in groove that joint portion formed and welding.

2. The thermal trip assembly of a miniature circuit breaker according to claim 1, wherein said side plate has a recess formed in a side thereof adjacent to said bimetal, said recess having a spring welded therein at one end thereof and welded thereto at the other end thereof.

3. The thermal trip assembly of a small size circuit breaker according to claim 2, wherein a seating hole for connecting the coil is further formed on the bimetal, the coil is connected to the bimetal through a flexible connection line, and one end of the flexible connection line passes through the seating hole and is fixed to the bimetal by welding.