CN216288275U

CN216288275U - SPD backup protector with strong impact resistance

Info

Publication number: CN216288275U
Application number: CN202120446501.8U
Authority: CN
Inventors: 潘晓东
Original assignee: Zhejiang Dazhan Electrical Co ltd
Current assignee: Zhejiang Dazhan Electrical Co ltd
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-04-12
Anticipated expiration: 2031-03-02

Abstract

The utility model discloses an SPD backup protector with strong impact resistance, which comprises a shell and a driving main body, wherein the shell is provided with a thickening layer and is integrally formed with the shell, the driving main body is provided with a first tripping piece and a second tripping piece, and one end of the first tripping piece, which is close to the driving main body, is also provided with a soft elastic tripping part for increasing tripping resilience. The shell is provided with the integrated thickening layer, the contact and the vacuum discharge tube are widened, so that the protector has stronger lightning impulse current resistance, and the soft elastic tripping parts are arranged on the two sides of the driving main body, so that the tripping resilience is increased, and the stress is more uniform.

Description

SPD backup protector with strong impact resistance

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a SPD backup protector with strong impact resistance.

Background

Surge protection devices, also known as Surge Protection Devices (SPDs), are an indispensable device in lightning protection of electronic equipment. A surge protector is a non-linear element aimed at limiting transient overvoltages and shunting surge currents.

And SPD backup protection ware promptly surge backup protection ware's effect is for realizing the selectivity breaking to power frequency current and lightning current that pass through, if generally the disconnector became invalid, when surge protection ware can not cut off power frequency short-circuit current, overcurrent protection electrical apparatus action breaks off surge protection ware from the parallel connection circuit, makes surge protection ware can not arouse overheated and lead to accidents such as conflagration, explosion, can guarantee the continuous power supply of power simultaneously.

The spare SPD protector in the market has very limited lightning current impact resistance because the contact and the vacuum discharge tube are small. Once the lightning current is too high, the equipment can be insufficiently loaded and even the equipment can catch fire and explode, and as shown in fig. 2, only one side of the spare SPD protector on the market is provided with a soft elastic tripping part, so that when the protector shell is required to be widened, the tripping force of the driving mechanism can be insufficient or the stress is uneven.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problems, the utility model provides the SPD backup protector which is simple in structure, strong in tripping force, strong in impact resistance, stable in performance and uniform in tripping stress.

(II) technical scheme

The SPD backup protector with strong impact resistance comprises a shell and a driving main body, wherein the shell is provided with a thickening layer and is integrally formed with the shell, the driving main body is provided with a first tripping piece and a second tripping piece, and one end of the first tripping piece, which is close to the driving main body, is also provided with a soft elastic tripping part for increasing tripping resilience.

In some embodiments, the soft resilient release is integrally formed with the first release to increase the release force of the drive mechanism.

In some embodiments, the first and second fastening parts are respectively located at two sides of the driving body and are connected through a connecting part, so that the fastening force is more uniform.

In some embodiments, the lower portion of the driving body is further provided with a movable contact, the housing is further provided with a gas discharge tube, and the top of the gas discharge tube extends to form a fixed contact.

In some embodiments, the movable contact and the fixed contact are provided with extension parts. To increase the lightning impulse current carrying capacity of the protector.

(III) advantageous effects

Compared with the prior art, the utility model has the following beneficial effects: the casing is equipped with integral type thickening layer and contact and vacuum discharge tube and has also widened the processing, makes the protector have stronger anti lightning impulse current ability, and all is equipped with soft bullet trip portion in drive main part both sides, has increased dropout resilience force and atress more even.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of a main view structure of an SPD backup protector with high impact resistance.

Fig. 2 is a schematic diagram of a rear view structure of an SPD backup protector with strong impact resistance.

Fig. 3 is a schematic structural diagram of a driving mechanism of an SPD backup protector with strong impact resistance.

FIG. 4 is an enlarged schematic view of a local A structure of a driving mechanism of a SPD backup protector with strong impact resistance

FIG. 5 is a schematic perspective view of a SPD backup protector with high impact resistance according to the present invention

The corresponding relationship between the component names and the reference numbers in the figures is as follows:

1. the flexible elastic trip device comprises a driving mechanism, 11, a handle switch, 12, a driving block, 13, a driving part, 14, a second trip part, 15, a driving main body, 16, a first trip part, 161, a flexible elastic trip part 2, a first terminal, 3, a movable contact, 4, a fixed contact, 5, an electromagnetic coil, 6, a gas discharge tube, 7, a second terminal, 8, a conducting strip, 9 and a shell.

Detailed Description

As shown in fig. 1 and 2, a schematic diagram of a front view and a schematic diagram of a future structure of an internal structure of an SPD backup protector with high impact resistance according to a preferred embodiment of the present invention, the SPD backup protector of the present embodiment includes a driving mechanism 1, a gas discharge tube 6 for high voltage protection, and a first terminal 2 and a second terminal 7 for linking external wires.

In the present embodiment, as shown in fig. 1, 2 and 5, the housing 9 of the protector is widened, and the overall volume of the protector is approximately twice that of the spare SPD protector on the market, the driving mechanism 1 is located at the upper part of the housing 9, and the movable contact 3 is arranged at the lower part of the driving mechanism 1. The gas discharge tube 6 is arranged on the left side of the protector shell 9, wherein the top of the gas discharge tube 6 extends to form a static contact 4, the tail end of the static contact is vertically bent downwards to form an L shape, and the static contact 4 and the moving contact 3 are widened to enable the protector to have stronger short circuit segmentation capability and shock resistance capability.

Furthermore, the bottom of the gas discharge tube 6 extends to be provided with a conducting strip 8 connected to the second terminal 7, an electromagnetic coil 5 is further arranged above the gas discharge tube 6, and the conducting strip 8 and the static contact 4 of the gas discharge tube 6 are respectively welded on through two copper wires

As shown in fig. 3, which is a schematic structural diagram of a driving mechanism of an SPD backup protector with high impact resistance according to a preferred embodiment of the present invention, the driving mechanism 1 of the present embodiment includes a handle switch 11, a driving body 15, a transmission member 13 for connection and transmission, a transmission block 12, a first release member 16, and a second release member 14.

Further, as shown in fig. 3 and 4, the first release member 16 and the second release member 14 are linked by a connecting member, and a soft elastic release portion 161 is further disposed at an end of the first release member 16 close to the driving body 15 to prevent the problem of insufficient release force and uneven force caused by widening the housing 9, wherein the soft elastic release portion 161 and the first release member 16 are of an integral structure. The moving contact 3 is connected with the first terminal 2 through flexible connection for conducting electricity.

In the present embodiment, the handle switch 11, the gas discharge tube 6, the driving body 15, the first terminal 2 and the second terminal 7 are also subjected to the corresponding widening enlargement processing in accordance with the housing 9. When the handle switch 11 is pushed, the handle switch 11 rotates to drive the transmission block 12 through the transmission piece 13, the transmission block 12 drives the trip component and the driving main body 15, and the movable contact 3 is abutted to the static contact 4 to achieve the purpose of closing the protector.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.

Claims

1. A SPD backup protector with strong impact resistance comprises a shell (9) and a driving main body (15), and is characterized in that: casing (9) are equipped with the thickening layer and with casing (9) integrated into one piece, be equipped with first fastener (16) and second fastener (14) of taking off on drive main part (15), first fastener (16) of taking off is close to drive main part (15) one end and still is equipped with soft bullet trip portion (161) that increase the dropout resilience force.

2. The SPD backup protector with high impact resistance according to claim 1, characterized in that: the soft elastic tripping part (161) and the first tripping part (16) are integrally formed, and the soft elastic tripping part (161) is also arranged on the second tripping part (14).

3. The SPD backup protector with high impact resistance according to claim 2, characterized in that: the first fastening releasing piece (16) and the second fastening releasing piece (14) are respectively positioned at two sides of the driving main body (15) and are connected through a connecting piece.

4. The SPD backup protector with high impact resistance according to claim 1, characterized in that: the lower part of the driving main body (15) is also provided with a moving contact (3), the shell (9) is also provided with a gas discharge tube (6), and the top of the gas discharge tube (6) is provided with a fixed contact (4) in an extending manner.

5. A SPD backup protector with high impact resistance according to claim 4, characterized in that: the moving contact (3) and the static contact (4) are both provided with extension parts.