CN215896209U

CN215896209U - Tripping mechanism of surge protector

Info

Publication number: CN215896209U
Application number: CN202121499022.9U
Authority: CN
Inventors: 金星; 黎云鹏; 芦周成; 刘达; 许旺
Original assignee: Jiangxi Lantian Lightning Protection Co ltd
Current assignee: Jiangxi Lantian Lightning Protection Co ltd
Priority date: 2021-07-03
Filing date: 2021-07-03
Publication date: 2022-02-22
Anticipated expiration: 2031-07-03

Abstract

The utility model discloses a tripping mechanism of a surge protector. The utility model can directly drive the arc-extinguishing plate to move, has high interruption speed, good interruption effect, higher safety, simple structural component and small occupied space through the combined action of the arc-extinguishing plate and the arc-extinguishing block, and solves the problem that the displacement route of the spring component is not fixed and can swing when the spring component extends.

Description

Tripping mechanism of surge protector

Technical Field

The utility model relates to the technical field of surge protection devices, in particular to a tripping mechanism of a surge protection device.

Background

A surge protector, also called a lightning protector, is an electronic device for providing safety protection for various electronic equipment, instruments and meters and communication lines. When the peak current or the voltage is suddenly generated in the electric loop or the communication line due to the external interference, the surge protector can conduct and shunt in a very short time, so that the damage of the surge to other equipment in the loop is avoided.

The surge protector is suitable for power supply systems with alternating current of 50/60HZ and rated voltage of 220V/380V, protects the influence of indirect lightning and direct lightning or other surges of instantaneous overvoltage, and is suitable for the requirements of surge protection in the fields of family residences, third industry and industry.

Surge protectors are commonly used in electrical lines in homes, offices, factories, etc. to prevent instantaneous overvoltage in the line from damaging electrical equipment. When an electric loop or a communication line generates peak current or voltage due to external interference, the surge protector can be conducted and shunted in a very short time, and damage of surge to other equipment in the loop is avoided.

The publication number is: when a spring is used for unhooking protection, the tripping device of the surge protector disclosed in CN209981126U has slow breaking speed, many structural components and large occupied space due to the fact that the arc extinguishing plate cannot be directly driven to move; the spring component has unfixed displacement route when being stretched and can swing, so that the arc-extinguishing plate is not stably and accurately displaced. The separation is carried out by the self elasticity of the contact piece, the separation is not thorough, the separation distance is small, potential safety hazards are caused, and the spring telescopic mechanisms on the left and the right and the upper and the lower parts are adopted, so that the structure is complex and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a tripping mechanism of a surge protector, which adopts the technical scheme that the tripping mechanism comprises: the arc extinguishing device comprises a shell, an arc extinguishing block, a fixed column and a limiting stop post which are used for arc extinguishing are fixedly installed in the inner cavity of the shell, the fixed column is arranged in the middle of the inner cavity of the shell, the arc extinguishing block is arranged above the left side of the fixed column, an insulating breaking sleeve used for insulation is installed on the outer side of the fixed column in a sleeved mode, a torsion spring is installed between the insulating breaking sleeve and the fixed column in a matched mode, a third electrode is fixedly installed inside the insulating breaking sleeve, an arc extinguishing plate, a limiting buffer block and a protruding block are fixedly installed on the outer side face of the insulating breaking sleeve, the limiting buffer block and the protruding block are arranged in an up-down symmetrical mode, the left end and the right end of the third electrode extend out of the insulating breaking sleeve and are respectively and fixedly installed with a third contact and a fourth contact used for electric conduction, a first electrode and a second electrode are fixedly installed on the left side and the right side of the bottom face of the shell, and a mounting hole is formed in the middle of the bottom face of the shell, and a first contact and a second contact are fixedly arranged on the first electrode and the second electrode respectively.

As a preferable aspect of the present invention, the third contact is pressed against the first contact, and the fourth contact is fixedly connected to the second contact by soldering.

In a preferred embodiment of the present invention, after the fourth contact is separated from the second contact, the arc-extinguishing block can abut against the third contact, and the arc-extinguishing plate can abut against the first electrode.

As a preferable scheme of the utility model, the lower end of the shell is also provided with a remote signaling switch control, a contact of the remote signaling switch control penetrates into the shell from the mounting hole, the convex block can abut against the contact of the remote signaling switch control,

as a preferable aspect of the present invention, after the fourth contact is separated from the second contact, the protrusion block may trigger a contact of the remote signaling switch control.

The utility model has the beneficial effects that: the utility model can directly drive the arc-extinguishing plate to move, has high interruption speed, good interruption effect, higher safety, simple structural component and small occupied space through the combined action of the arc-extinguishing plate and the arc-extinguishing block, and solves the problem that the displacement route of the spring component is not fixed and can swing when the spring component extends.

Drawings

FIG. 1 is a schematic view of a first usage state of the present invention;

FIG. 2 is a schematic view of a second usage state of the present invention;

fig. 3 is a schematic structural diagram of a third electrode according to the present invention.

In the figure: 1-shell, 101-mounting hole, 102-limit block, 2-first electrode, 201-first contact, 3-second electrode, 301-second contact, 4-arc extinguishing block, 5-insulation blocking sleeve, 501-arc extinguishing plate, 502-protrusion block, 503-limit buffer block, 6-fixing column, 7-torsion spring, 8-third electrode, 801-third contact and 802-fourth contact.

Detailed Description

Example 1

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model, and further, the terms "first", "second", etc., are used only for descriptive purposes and are not intended to indicate or imply relative importance or to implicitly indicate the number of technical features indicated, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more of such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

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; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be communicated with each other, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art through specific situations.

As shown in fig. 1 to 3, the trip mechanism of a surge protector according to the present invention adopts a technical solution that includes: the arc extinguishing device comprises a shell 1, an arc extinguishing block 4, a fixed column 6 and a limiting stop post 102 are fixedly installed in an inner cavity of the shell 1, the fixed column 6 is arranged in the middle of the inner cavity of the shell 1, the arc extinguishing block 4 is arranged on the upper left side of the fixed column 6, an insulating breaking sleeve 5 is sleeved on the outer side of the fixed column 6, the insulating breaking sleeve 5 is used for covering an electrode to enable the electrode not to conduct electricity, a torsion spring 7 is installed between the insulating breaking sleeve 5 and the fixed column 6 in a matched mode, the torsion spring 7 can provide torsional force, a third electrode 8 is fixedly installed inside the insulating breaking sleeve 5, an arc extinguishing plate 501, a limiting buffer block 503 and a protruding block 502 are fixedly installed on the outer side face of the insulating breaking sleeve 5, the limiting buffer block 503 and the protruding block 502 are arranged in an up-down symmetrical mode, the left end and the right end of the third electrode 8 extend out of the insulating breaking sleeve 5 and are respectively and fixedly installed with a third contact 801 and a fourth contact 802, a first electrode 2 and a second electrode 3 are fixedly installed on the left side and the right side of the bottom face of the shell 1, the middle position of the bottom surface is provided with a mounting hole 101, and a first contact 201 and a second contact 301 are respectively and fixedly mounted on the first electrode 2 and the second electrode 3.

The third contact 801 is pressed against the first contact 201 and the fourth contact 802 is fixedly connected to the second contact 301 by soldering.

After the fourth contact 802 is separated from the second contact 301, the arc-extinguishing block 4 can abut against the third contact 801, and the arc-extinguishing plate 501 can abut against the first electrode 2.

The lower end of the shell 1 is also provided with a remote signaling switch control, a contact of the remote signaling switch control penetrates into the shell 1 from the mounting hole 101, and the protruding block 502 can abut against the contact of the remote signaling switch control.

After the fourth contact 802 is separated from the second contact 301, the bump 502 can activate the contact of the remote signaling switch control.

The working principle of the utility model is as follows: when the utility model is used, the first electrode 2, the second electrode 3 and the third electrode 8 are used for conducting, when surge impact exists in a circuit, larger heat can be generated in a short time, soldering tin at the fourth contact 802 and the second contact 301 which are welded at low temperature is melted, at the moment, the torsion spring 7 immediately acts and drives the insulating blocking sleeve 5 and the third electrode 8 to rotate, so that the fourth contact 802, the second contact 301, the third contact 801, the first contact 201, the protruding block 502 and a contact of a remote signaling switch control are all separated, then the arc extinguishing block 4 can abut against the third contact 801, the arc extinguishing plate 501 can abut against the first electrode 2 to play an arc extinguishing role, at the same time, the contact of the remote signaling switch control acts and outputs signals, and the limiting buffer block 503 can abut against the limiting blocking column 102 to reduce the impact force during rotation and limit.

Components and circuit connections not described in detail herein are prior art.

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A surge protector's tripping device characterized in that includes: the arc extinguishing device comprises a shell (1), an arc extinguishing block (4), a fixed column (6) and a limiting stop column (102) are fixedly mounted in an inner cavity of the shell (1), the fixed column (6) is arranged in the middle of the inner cavity of the shell (1), the arc extinguishing block (4) is arranged above the left side of the fixed column (6), an insulating blocking sleeve (5) is sleeved on the outer side of the fixed column (6), a torsion spring (7) is installed between the insulating blocking sleeve (5) and the fixed column (6) in a matched mode, a third electrode (8) is fixedly mounted inside the insulating blocking sleeve (5), an arc extinguishing plate (501), a limiting buffer block (503) and a protruding block (502) are fixedly mounted on the outer side face of the insulating blocking sleeve, the limiting buffer block (503) and the protruding block (502) are arranged in an up-down symmetrical mode, and the left end and right end of the third electrode (8) extend out of the insulating blocking sleeve (5), and respectively fixed mounting has third contact (801) and fourth contact (802), the bottom surface left and right sides fixed mounting of shell (1) has first electrode (2) and second electrode (3), and mounting hole (101) have been seted up to the bottom surface intermediate position, first electrode (2) with on second electrode (3) respectively fixed mounting have first contact (201) and second contact (301).

2. A trip mechanism for a surge protector as defined in claim 1, wherein: the third contact (801) is pressed against the first contact (201), and the fourth contact (802) is fixedly connected with the second contact (301) through low-temperature welding.

3. A trip mechanism for a surge protector as defined in claim 2, wherein: after the fourth contact (802) is separated from the second contact (301), the arc extinguishing block (4) can abut against the third contact (801), and the arc extinguishing plate (501) can abut against the first electrode (2).

4. A surge protector trip mechanism according to claim 3, wherein: the lower end of the shell (1) is also provided with a remote signaling switch control, a contact of the remote signaling switch control penetrates into the shell (1) from the mounting hole (101), and the convex block (502) can abut against the contact of the remote signaling switch control.

5. A trip mechanism for a surge protector as defined in claim 4, wherein: after the fourth contact (802) is separated from the second contact (301), the convex block (502) can trigger a contact of the remote signaling switch control.