CN110907668A

CN110907668A - Protection device for signal input connector of laboratory

Info

Publication number: CN110907668A
Application number: CN201911196559.5A
Authority: CN
Inventors: 韩磊; 袁中琛; 杜明; 赵玉新; 黄潇潇
Original assignee: State Grid Corp of China SGCC; State Grid Tianjin Electric Power Co Ltd; Electric Power Research Institute of State Grid Tianjin Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Tianjin Electric Power Co Ltd; Electric Power Research Institute of State Grid Tianjin Electric Power Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-03-24

Abstract

The invention relates to a protection device for a signal input joint in a laboratory, which is technically characterized in that: the long-tail clamp type structure comprises two side clamping arms and a bottom plate used for connecting the two side clamping arms, the bottom plate and the two side clamping arms are integrally formed, a plurality of fixing seats used for fixing signal input connectors are installed on the inner side of the bottom plate, and limiting through grooves used for inserting the signal input connectors are manufactured on the fixing seats. The invention improves the overall efficiency of the network access detection test of the signal input joint protection device.

Description

Protection device for signal input connector of laboratory

Technical Field

The invention belongs to the technical field of signal input connectors, relates to a protection device of a signal input connector, and particularly relates to a protection device of a signal input connector for a laboratory.

Background

At present, before a protection device installed in a transformer substation is installed on a local site, a laboratory network access detection test is carried out, and whether each function of the protection device meets the operation requirement of a power grid or not is verified.

Generally, a protection device installed in a substation outputs and inputs more signals, and a signal loop of a device backplane is complex in wiring and generally needs to be completed according to a standard wiring process. As shown in fig. 1, each loop wire has a loop pin, which is inserted into a terminal block, and then the loop pin is fixed by a fastening wire screw, and the terminal block is designed to have a common size standard.

However, in a laboratory, a wiring process flow of a substation field is not provided, and a special test wire and a test pin are required to replace a field wiring mode, as shown in fig. 2, the whole wiring process is long in use, and due to the fact that the space of a terminal block is limited, the problem that the test pin is loosened or the position of the test pin is connected in a wrong way often occurs, so that dangers such as short circuit and grounding occur. Therefore, a signal input connector of the protection device for a laboratory is needed at present, so that the wiring process is optimized, and the network access detection test of the whole protection device is more efficient and safer.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a protective device for a signal input joint in a laboratory, which is reasonable in design, simple, practical, safe and efficient.

The invention solves the practical problem by adopting the following technical scheme:

the utility model provides a protection device for signal input connects in laboratory, is long tail clamp type structure, includes both sides arm lock and is used for connecting this both sides arm lock bottom plate, and this bottom plate and both sides arm lock integrated into one piece install a plurality of fixing bases that are used for fixed signal input to connect in the bottom plate inboard, the system has the spacing logical groove that is used for cartridge signal input to connect on this fixing base.

And a spring is fixedly arranged on the bottom plate in the limiting through groove.

Moreover, the signal input joint adopts a striker type joint.

And, both sides arm lock clamp is in the metal terminal row outside.

And a through hole communicated with the limiting through groove is formed in the bottom plate, a signal return line is connected to the tail of the striker type connector, and the signal return line sequentially penetrates out of the limiting through groove and the through hole.

Moreover, the signal input connector is made of engineering plastics.

The invention has the advantages and beneficial effects that:

on the basis of ensuring the test process, the invention replaces the traditional test contact pin and special test wire, simplifies the wiring process in the test by one bit, and improves the overall efficiency of the network access detection test of the protection device. The long tail clamp and the spring are matched to make the contact more firm, and the signal input connector of the protection device plays a role in safety and high efficiency fundamentally after being used.

Drawings

FIG. 1 is a schematic diagram of the wiring of a backplane of a field protection device according to the background art of the present invention;

FIG. 2 is a schematic diagram of wiring manner of a terminal block of a back plate of a protection device in a laboratory in the background art of the present invention (front surface of the terminal block);

FIG. 3 is a schematic view of the overall structure of the signal input connector of the present invention;

fig. 4 is a side view of the terminal block of the present invention;

FIG. 5 is a schematic diagram of the internal structure of the signal input connector of the present invention;

fig. 6 is a schematic view showing a state in which the signal input connector of the present invention is used while being clamped to the terminal block.

Description of reference numerals:

1-clamping arms; 2-a fixed seat; 3-a bottom plate; 4-a through hole; 5-signal return line; 6-metal terminals; 7-a striker-type joint; 8-a spring;

Detailed Description

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

the utility model provides a protection device signal input joint structure for laboratory, as shown in fig. 3, fig. 4 and fig. 6, is long tail clamp type structure, includes both sides arm lock 1 and is used for connecting this both sides arm lock bottom plate 3, and this bottom plate and both sides arm lock integrated into one piece install a plurality of fixing bases 2 that are used for fixed signal input to connect in the bottom plate inboard, the system has the spacing logical groove that is used for cartridge signal input to connect on this fixing base.

In this embodiment, a spring 8 is fixedly mounted on the bottom plate inside the limiting through groove.

In this embodiment, the signal input contacts are pin contacts 7, which can effectively contact the metal terminals 6 on the terminal row, and the spring is mounted on the pin contact tail fixing seat, which can firmly press the pin contact on the metal terminal row.

In this embodiment, the two side clip arms can be tightly clipped outside the metal terminal row.

In the embodiment, the bottom plate is provided with a through hole 4 communicated with the limiting through groove, the tail part of the striker type connector is connected with a signal return line 5, and the signal return line sequentially penetrates out of the limiting through groove and the through hole.

In this embodiment, the signal input connector is made of engineering plastics, so that the signal input connector has high hardness, is not easy to deform, and has high insulation property, thereby ensuring that the metal firing pin in each hole is not electrically connected with the outside or short-circuited with the outside.

In this embodiment, the metal terminal strip adopts a universal size standard in design, and by using the signal transmission connector, the metal terminal strip only needs to be aligned to the position of the metal terminal on the terminal strip every time, and the signal transmission connector can be clamped, so that a large amount of wiring time is saved.

The working principle of the invention is as follows:

the signal input joint is designed according to the standard outline size of the terminal row and the spacing between the metal terminals, the binder clip is manually opened when the signal input joint is used, then the metal firing pin is aligned with the metal terminals, the binder clip is clamped on two sides of the terminal row, one end of a signal wire is led out from the tail of the metal terminal, and the other end of the signal wire is connected to a relay protection tester.

It should be emphasized that the examples described herein are illustrative and not restrictive, and thus the present invention includes, but is not limited to, those examples described in this detailed description, as well as other embodiments that can be derived from the teachings of the present invention by those skilled in the art and that are within the scope of the present invention.

Claims

1. A protective device for a signal input connector of a laboratory, characterized in that: the long-tail clamp type structure comprises two side clamping arms and a bottom plate used for connecting the two side clamping arms, the bottom plate and the two side clamping arms are integrally formed, a plurality of fixing seats used for fixing signal input connectors are installed on the inner side of the bottom plate, and limiting through grooves used for inserting the signal input connectors are manufactured on the fixing seats.

2. A protection device for signal input terminals of laboratories according to claim 1, characterized in that: and a spring is fixedly arranged on the bottom plate in the limiting through groove.

3. A protection device for signal input terminals of laboratories according to claim 1, characterized in that: the signal input joint adopts a striker type joint.

4. A protection device for signal input terminals of laboratories according to claim 1, characterized in that: the two side clamping arms are clamped outside the metal terminal strip.

5. A protection device for signal input terminals of laboratories according to claim 1, characterized in that: the bottom plate is provided with a through hole communicated with the limiting through groove, the tail part of the striker type connector is connected with a signal return line, and the signal return line sequentially penetrates out of the limiting through groove and the through hole.

6. A protection device for signal input terminals of laboratories according to claim 1, characterized in that: the signal input joint is made of engineering plastics.