CN219642767U

CN219642767U - Automobile circuit breaker

Info

Publication number: CN219642767U
Application number: CN202320545564.8U
Authority: CN
Inventors: 胡志坚; 鲁玲
Original assignee: Dongguan Danluo Electric Appliances Co ltd
Current assignee: Dongguan Danluo Electric Appliances Co ltd
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-09-05
Anticipated expiration: 2033-03-20

Abstract

The utility model relates to an automobile circuit breaker in the field of circuit breakers, wherein a short terminal and a long terminal are connected through a metal sheet, the short terminal is fixedly connected with the metal sheet, the surface of the long terminal is provided with a terminal point, and the surface of the metal sheet is provided with a sheet contact point for contacting with the terminal point. According to the automobile circuit breaker, the metal sheet is arranged to replace a traditional fuse, meanwhile, the reaction is sensitive, the circuit is protected by timely tripping, the size is reduced, and the circuit breaking performance of an automobile circuit is improved. The short terminal is fixedly connected with the metal sheet through the rivet, the gasket is arranged between the short terminal and the metal sheet, the gasket is sleeved on the surface of the rivet, and the end contact point is fixedly connected with the long terminal and the metal sheet is fixedly connected with the end contact point.

Description

Automobile circuit breaker

Technical Field

The utility model relates to the field of circuit breakers, in particular to an automobile circuit breaker.

Background

An automotive circuit breaker is an electrical device for turning on and off a load and breaking a circuit line when abnormal current such as overload, electric shortage, ground fault, etc. occurs. The most important function of the circuit breaker is to effectively break the circuit line when an electrical shortage occurs. And the automobile circuit breaker needs to meet the national standard of QC/T951, and the circuit breaker is widely applied to the fields of automobile wire harnesses, new energy automobile circuits, equipment lines, small-sized electrical equipment, electric vehicles, household appliances and the like.

However, the existing automotive circuit breaker has the following problems: 1) The factors of the similar products such as the production process and the manufacturing technology cannot meet the technical requirement that the standard is that 110 percent is not tripped in more than 1 hour and 135 percent is tripped in 30-600 seconds, so that the technical progress of the automobile industry is affected; 2) The conventional fuse has the problem that the fuse burns out due to circuit abnormality caused by short circuit or overload, and the like, so that a new fuse needs to be pulled out and replaced, which is inconvenient.

Disclosure of Invention

The utility model aims to solve the defects and provide the automobile circuit breaker.

The object of the utility model is achieved by: the utility model provides an automobile circuit breaker, includes connects and connects the lid, connects the one end that sets up in the lid that connects, connects including short terminal, long terminal and fixed shell, and short terminal and long terminal all pass the fixed shell, be connected through the sheetmetal between short terminal and the long terminal, carry out fixed connection between short terminal and the sheetmetal, the surface of long terminal is equipped with the termination point, the surface of sheetmetal is equipped with the sheet contact that is used for carrying out the contact with the termination point.

In the above description, as a further scheme, the short terminal and the metal sheet are fixedly connected by a rivet, a gasket is arranged between the short terminal and the metal sheet, the gasket is sleeved on the surface of the rivet, and the terminal point and the long terminal and the metal sheet and the terminal point are fixedly connected.

In the above description, as a further scheme, the fixed shell is connected with the connecting cover through a push rod, a slot for moving the terminal point is arranged on the side surface of the push rod, one end of the push rod is connected with the bottom surface of the fixed shell through a spring, and the other end of the push rod passes through the connecting cover.

In the above description, as a further scheme, the bottom surface of the cover is provided with an opening for the push rod to move, the side surface of the fixed shell is provided with a clamping block, and the side surface of the cover is provided with a clamping opening matched with the clamping block.

In the above description, as a further aspect, the diameter of the middle part of the push rod is larger than the diameter of the opening.

The beneficial effects of the utility model are as follows: according to the automobile circuit breaker, the metal sheet is arranged to replace a traditional fuse, meanwhile, the reaction is sensitive, the circuit is protected by timely tripping, the size is reduced, and the circuit breaking performance of an automobile circuit is improved.

Drawings

Fig. 1 is a schematic perspective view of an automotive circuit breaker according to the present utility model;

fig. 2 is a schematic view showing a first-direction perspective structure of an automotive circuit breaker with a cover removed according to the present utility model;

fig. 3 is a schematic view showing a second directional perspective structure of an automotive circuit breaker with a cover removed according to the present utility model;

FIG. 4 is an exploded view of a manual reset in an automotive circuit breaker according to the present utility model;

fig. 5 is a sectional view of a manual reset in an automotive circuit breaker according to the present utility model;

in the figure: 1-spring, 2-fixed shell, 3-connecting cover, 4-push rod, 5-terminal, 6-sheet contact, 7-metal sheet, 8-washer, 9-rivet, 10-opening, 11-clamping block, 12-clamping opening, 13-long terminal and 14-short terminal.

Detailed Description

The utility model is described in further detail below with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the utility model 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", 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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 number", "a plurality" or "a plurality" is two or more, unless specifically 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 connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

Referring to fig. 1-3, an automotive circuit breaker in the embodiment includes a connector and a cover 3, the connector is disposed at one end of the cover 3, the connector includes a short terminal 14, a long terminal 13 and a fixing case 2, the short terminal 14 and the long terminal 13 all pass through the fixing case 2, the short terminal 14 and the long terminal 13 are connected by a metal sheet 7, the short terminal 14 and the metal sheet 7 are fixedly connected, a terminal point 5 is disposed on a surface of the long terminal 13, and a sheet contact point 6 for contacting with the terminal point 5 is disposed on a surface of the metal sheet 7.

Specifically, the short terminal 14 and the metal sheet 7 are fixedly connected through the rivet 9, the gasket 8 is arranged between the short terminal 14 and the metal sheet 7, the gasket 8 is sleeved on the surface of the rivet 9, and the end joint 5 and the long terminal 13 and the metal sheet 7 and the end joint 5 are fixedly connected.

The working principle of the embodiment of the utility model for automatic resetting is as follows: the built-in metal sheet 7 with overlarge current is heated and deformed, so that the end connection point 5 and the sheet connection point 6 are disconnected, an disconnected space is formed, the effect of disconnecting the current is achieved, a reset time range of the metal sheet 7 is preset, and therefore the metal sheet 7 is automatically reset to form a closed circuit after a certain time, and the circuit is turned on again.

Referring to fig. 4-5, in an automotive circuit breaker embodied in the present utility model, a fixed housing 2 and a connecting cover 3 are connected by a push rod 4, a slot for moving a terminal point 5 is provided on a side surface of the push rod 4, one end of the push rod 4 is connected with a bottom surface of the fixed housing 2 by a spring 1, and the other end of the push rod 4 passes through the connecting cover 3.

Specifically, the bottom surface of the connecting cover 3 is provided with an opening 10 for the push rod 4 to move, the side surface of the fixed shell 2 is provided with a clamping block 11, and the side surface of the connecting cover 3 is provided with a clamping opening 12 for being matched with the clamping block 11.

Specifically, the diameter of the middle portion of the push rod 4 is larger than the diameter of the opening 10.

The working principle of the manual reset of the embodiment of the utility model is as follows: because the oversized metal sheet 7 is heated and deformed to form a breaking space, the breaking current is achieved, at the moment, the terminal point 5 is disconnected with the sheet contact 6, the terminal point 5 slides along the slot, the push rod 4 is separated from the metal sheet 7, the middle part of the push rod 4 is clamped at the opening 10, the push rod 4 is reset after the overload current is removed or reduced, and the push rod 4 is clamped by the sheet end point and can be electrified.

The foregoing is a further detailed description of the utility model in connection with specific further embodiments, and is not intended to limit the practice of the utility model to such descriptions. It should be understood by those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the present utility model, and the present utility model is not limited to the above-mentioned embodiments.

Claims

1. The utility model provides an automobile circuit breaker, includes connects and connects the lid, connects the one end that sets up in the lid that connects, connects including short terminal, long terminal and fixed shell, and short terminal and long terminal all pass the fixed shell, its characterized in that, be connected through the sheetmetal between short terminal and the long terminal, carry out fixed connection between short terminal and the sheetmetal, the surface of long terminal is equipped with the termination point, and the surface of sheetmetal is equipped with the sheet contact that is used for carrying out the contact with the termination point.

2. The automotive circuit breaker according to claim 1, wherein the short terminal and the metal sheet are fixedly connected by a rivet, a gasket is provided between the short terminal and the metal sheet, the gasket is sleeved on the surface of the rivet, and the fixed connection is performed between the terminal point and the long terminal and between the metal sheet and the terminal point.

3. An automotive circuit breaker according to claim 1 or 2 wherein the fixed housing and the cover are connected by a push rod, the side of the push rod being provided with a slot for movement of the terminal point, one end of the push rod being connected to the bottom surface of the fixed housing by a spring, the other end of the push rod passing through the cover.

4. A vehicle circuit breaker according to claim 3 wherein the underside of the cover is provided with an opening for movement of the push rod, the side of the fixed housing is provided with a gripping block, and the side of the cover is provided with a gripping opening for engagement with the gripping block.

5. The automotive circuit breaker of claim 4, wherein the diameter of the middle portion of the pushrod is greater than the diameter of the opening.