CN219143042U

CN219143042U - Relay testing device

Info

Publication number: CN219143042U
Application number: CN202223544122.6U
Authority: CN
Inventors: 潘凌霄; 杨越; 阮国泰; 李海林; 李曦; 李剑
Original assignee: Suzhou CRRC Rail Transit Vehicle Co Ltd
Current assignee: Suzhou CRRC Rail Transit Vehicle Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-06
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a relay testing device, which comprises a switching table and a relay base; the surface of the switching table is provided with a connector and a terminal strip; the connector is externally connected with input equipment; the terminal strip is arranged in the middle of the switching table, and the switching table is used for signal conversion between the connector and the terminal strip; the relay base can be plugged into a relay to be tested, and is connected with the terminal strip through a cable; the relay base is connected with the terminal strip, so that the wiring mode can be freely adjusted according to the point positions of the normally open contact and the normally closed contact of the tested relay, the relay is suitable for detecting actions of various relays, and the device has a wide application range; the relay is fixed on the base for testing, manual holding is not needed, testing errors in manual operation are reduced, testing efficiency is improved, and the relay is connected and fixed with the base without frequent disassembly, so that time cost is saved.

Description

Relay testing device

Technical Field

The utility model relates to the technical field of rail transit relay testing, in particular to a relay testing device.

Background

The relay is used as an important component of a current loop on the rail transit vehicle, and the relay is required to be subjected to action detection to determine the quality; at present, the relay is tested by normally open point test, normally closed point test and the like, but the relay is tested by manually holding a single pair of contacts of equipment by a tester and fixedly testing, and then reading and recording by other testers, the testing task cannot be independently finished by a single person, a large amount of labor cost and time cost are required to be consumed, and the testing efficiency is low.

In the existing test method, according to different relay test types, each test needs to change the holding mode of the equipment according to different drawings, the requirement on testers is high, human errors are easy to occur, and further the test result is deviated.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problems that in the prior art, the relay test needs manual handheld equipment to be matched, so that the test efficiency is low and the result is easy to deviate.

In order to solve the technical problems, the utility model provides a relay testing device, which comprises,

the surface of the switching table is provided with a connector and a terminal strip; the connector is externally connected with input equipment; the terminal strip is arranged in the middle of the switching table, and the switching table is used for signal conversion between the connector and the terminal strip;

the relay base can be plugged with a relay to be tested, and the relay base is connected with the terminal strip through a cable.

In one embodiment of the utility model, the relay base comprises a base body, wherein a relay mounting seat and a mounting hole are arranged on the base body, and the relay base is fixed on the switching table through the mounting hole.

In one embodiment of the utility model, the relay base is configured as a 24-core relay base, which includes 24 relay mounts arranged in an array.

In one embodiment of the present utility model, the material of the base body is ABS plastic.

In one embodiment of the utility model, the surface of the transfer table is further provided with a clamping groove, the clamping groove can be clamped and fixed with the guide rail, and the clamping groove is positioned on the back side of the connector and the terminal strip.

In one embodiment of the utility model, the transfer table is grounded through the guide rail.

In one embodiment of the utility model, the terminal block comprises a plurality of wiring terminals, wiring grooves are arranged in the wiring terminals, a cover body is arranged on the periphery of the wiring grooves, and terminal codes are arranged on the cover body.

In one embodiment of the present utility model, the wiring groove and the cover body are integrally formed.

In one embodiment of the utility model, the terminal block comprises a power supply terminal, and the driving power supply of the relay base is electrically connected with the power supply terminal and provided with two mutually insulated contacts.

In one embodiment of the utility model, the terminal block comprises a test terminal provided with a normally open contact and a normally closed contact.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

according to the relay testing device, the relay base is connected with the terminal strip, so that the connection mode of the cable can be freely adjusted, the wiring mode can be freely adjusted according to the point positions of the normally open contact and the normally closed contact of the tested relay, the relay testing device is suitable for detecting actions of various relays or meeting various testing requirements of the relays, and the device is wide in application range; the relay is fixed on the base for testing without manual holding, so that testing errors in manual operation are reduced, testing efficiency is improved, and the relay is connected and fixed with the base without frequent disassembly, so that testing line quality is improved, and time cost is saved.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which:

FIG. 1 is a schematic diagram of an assembly of a repeater testing apparatus according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of a relay base in accordance with a preferred embodiment of the present utility model;

fig. 3 is a schematic diagram of the wiring of the relay under test in the preferred embodiment of the present utility model.

Description of the specification reference numerals: 1. a transfer table; 2. a connector; 3. a terminal block; 4. a relay base; 41. a base body; 42. a relay mounting base; 43. and (5) mounting holes.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

Examples

Referring to fig. 1 and 2, the utility model provides a relay testing device, which is used for assisting in installing and wiring a relay and completing the action and parameter detection of the relay, including whether a relay contact performs action, action time, contact resistance test, contact on-off test and the like; the relay testing device comprises a switching table 1 and a relay base 4.

Specifically, referring to fig. 1, a connector 2 and a terminal strip 3 are disposed on the surface of the adapting table 1; the connector 2 is externally connected with input equipment; the terminal strip 3 is arranged in the middle of the transfer table 1, and the transfer table 1 is used for signal conversion between the connector 2 and the terminal strip 3.

Further, referring to fig. 1, the terminal block 3 includes a plurality of connection terminals arranged in a row, a wiring groove is provided in the connection terminals, a cover is provided at the periphery of the wiring groove, and a terminal code is provided on the cover. The wiring groove and the cover body are of an integrated structure, so that the connection strength is increased. The outer layer of the wiring terminal is of an insulation design and can be connected through a short-circuit piece; referring to fig. 3, the terminal block 3 includes a power terminal to which a driving power source of the relay base 4 is electrically connected, and is provided with two contacts A1 and A2 insulated from each other. Further, the terminal block 3 further comprises a test terminal, and the test terminal is provided with a normally open contact NO and a normally closed contact NC; according to the corresponding relay test requirements, referring to the wiring schematic diagram of the relay to be tested, the relay test device can freely manufacture the switching device matched with the wiring schematic diagram, and is high in universality and wide in application range.

Furthermore, a clamping groove is further formed in the surface of the adapting table 1, the clamping groove can be clamped and fixed with the guide rail, in the preferred embodiment of the utility model, two ends of the clamping groove in the length direction are provided with buckles to be fixed on the guide rail, and in other embodiments of the utility model, the clamping groove and the guide rail can be in other detachable connection modes; the contact surface of the transfer table 1 and the guide rail is positioned on the back side of the connector 2 and the terminal block 3, and the transfer table 1 is connected with the guide rail through the clamping groove and grounded; on the one hand, the relay testing device can be fixed in the electrical cabinet for testing, on the other hand, the vibration influence in the relay parameter testing process can be weakened, the testing error is reduced, and the testing precision is improved.

Specifically, referring to fig. 2, the relay base 4 includes a base body 41, a relay mounting seat 42 and a mounting hole 43 are provided on the base body 41, and the relay base 4 is fixed to the adaptor table 1 through the mounting hole 43; the relay mounting seat 42 can be plugged with a relay to be tested, the relay base 4 is freely connected with the terminal strip 3 through a cable, and the connection mode can be changed according to the test requirement. In the existing relay parameter test and performance verification, if different types of relays are replaced or the same type of relay is tested by using different contacts, the relay base 4 and test equipment are required to be disassembled and assembled again, the relay base 4 is not properly placed and fixed, electric leakage is easy, and potential safety hazards exist; in the embodiment of the utility model, wiring is completed through the switching table 1, a relay is not required to be connected by manual handheld equipment, and the relay is not required to be frequently disassembled and assembled, so that mechanical abrasion is reduced, the testing efficiency is improved, and the potential safety hazard is reduced. Further, the contact pressure, the contact material and the manufacturing process of the contact have a certain influence on the contact resistance of the relay contact, and in the embodiment of the utility model, the contact material is metal, preferably copper-containing alloy or silver-plated material.

Further, the relay base 4 is a standard 24-core relay base, and 24 relay mounting seats 42 arranged in an array are arranged in the middle of the base main body 41; the base body 41 is made of ABS plastic, so that the insulation protection function is achieved, and meanwhile, the manufacturing cost is saved; further, the main body frame of the relay testing device is preferably made of plastic, so that the weight of the device is reduced, the relay testing device is light and easy to move, the whole device is simple in structure and small in occupied space, and the relay testing device can be placed together with matched testing equipment, so that subsequent maintenance is facilitated.

The working principle of the relay testing device provided by the embodiment of the utility model is as follows:

the relay to be tested is inserted into the relay mounting seat 42, and the relay base 4 is fixed with the switching table 1 through the mounting hole 43; the normally open contact NO and the normally closed contact NC point positions of the relay to be detected are wired to the terminal strip 3 according to the need, corresponding matched switching devices are formed through different wiring modes, a plurality of contacts are used for controlling a simultaneous measurement mode, the relay is tightly connected and fixed with the testing device, repeated switching or dismantling is not needed, and the testing quality and testing efficiency are improved. The connector 2 is used for connecting signal input equipment, the switching platform 1 is used for the connector 2 with the conversion of terminal strip 3, terminal strip 3 pass through different cable wiring modes with relay base 4 links to each other, accomplishes signal conversion and test wiring.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present utility model will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A relay testing device is characterized by comprising,

2. A relay testing apparatus according to claim 1, wherein: the relay base comprises a base main body, wherein a relay mounting seat and a mounting hole are formed in the base main body, and the relay base is fixed on the switching table through the mounting hole.

3. A relay testing apparatus according to claim 2, wherein: the relay base is arranged to be a 24-core relay base and comprises 24 relay installation seats which are arranged in an array.

4. A relay testing apparatus according to claim 2, wherein: the base body is made of ABS plastic.

5. A relay testing apparatus according to claim 1, wherein: the surface of the switching table is also provided with a clamping groove which can be clamped and fixed with the guide rail, and the clamping groove is positioned on the back side of the connector and the terminal strip.

6. A relay testing apparatus according to claim 5, wherein: the switching platform is grounded through the guide rail.

7. A relay testing apparatus according to claim 1, wherein: the terminal strip includes a plurality of binding post, be provided with the wiring groove in the binding post, the wiring groove periphery is provided with the lid, be equipped with the terminal code on the lid.

8. A relay testing apparatus according to claim 7, wherein: the wiring groove and the cover body are of an integrated structure.

9. A relay testing apparatus according to claim 1, wherein: the terminal strip comprises a power terminal, a driving power supply of the relay base is electrically connected with the power terminal, and two mutually insulated contacts are arranged.

10. A relay testing apparatus according to claim 1, wherein: the terminal strip comprises a test terminal, and the test terminal is provided with a normally open contact and a normally closed contact.