CN215768904U

CN215768904U - Intermediate relay inspection device

Info

Publication number: CN215768904U
Application number: CN202122280461.7U
Authority: CN
Inventors: 姜镇; 邓金晨; 刘佰臣
Original assignee: Datang Shandong Electric Power Overhaul and Operation Co Ltd
Current assignee: Datang Shandong Electric Power Overhaul and Operation Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-02-08
Anticipated expiration: 2031-09-18

Abstract

The utility model belongs to the field of electrical inspection, and particularly relates to an intermediate relay inspection device. The device comprises a fixed shell, wherein an operating mechanism and an indicating panel are arranged on the fixed shell; a control loop and an indication loop are arranged in the fixed shell; the control circuit is connected with the indicating circuit in parallel and is connected with the button switch, the power indicator lamp and the control circuit fuse in series; be equipped with a plurality of normally open nodes, a plurality of normal close node, a plurality of public end pin and instruction return circuit fuse on the instruction return circuit, each normally open node and normal close node all are connected with an pilot lamp. The utility model reflects the change of the coil node and the coil of the relay through the state change of the indicator lamp, thereby obtaining the state quality of the relay to be detected, judging whether the relay needs to be replaced, avoiding measuring the nodes one by using a universal meter, and greatly improving the detection efficiency of the small-sized intermediate relay.

Description

Intermediate relay inspection device

Technical Field

The utility model belongs to the field of electrical inspection, and particularly relates to an intermediate relay inspection device.

Background

The intermediate relay is used in relay protection and automatic control system to increase the number and capacity of contacts. The relay is used for transmitting intermediate signals in a control circuit, and the intermediate relay has good electric isolation so that a control party and a controlled party have no connection on an electric appliance, thereby achieving the aim of safety control. At present, a common detection method for a small intermediate relay is to use a multimeter for measurement, judge whether a coil is open-circuited or not by measuring the direct resistance of the coil of the relay, and judge whether the contact condition of a contact is good or not by measuring the resistance of a normally open contact and a normally closed contact. When the control loop with a plurality of small intermediate relays is inspected, the measurement by the universal meter is particularly time-consuming and labor-consuming, and the small relay of the control loop cannot be inspected quickly and efficiently. Meanwhile, due to the restriction of various conditions on site, the auxiliary contact of the relay cannot be measured well. Although relays manufactured by some manufacturers can manually switch on and off of auxiliary electric shocks, human factor interference exists in the process of electrification control during equipment operation, and the quality of relays cannot be truly reflected.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model designs a small intermediate relay inspection device which has the advantages of high inspection efficiency, simple operation, high accuracy and high safety in order to solve the problems of long time consumption and insufficient accuracy of the traditional inspection method.

In order to achieve the above technical objects, the present invention adopts the following technical solutions.

An intermediate relay inspection device comprises a fixed shell, wherein an operating mechanism and an indicating panel are arranged on the fixed shell; a control loop and an indication loop are arranged in the fixed shell;

the control circuit is connected with the indicating circuit in parallel, and the control circuit is connected with the button switch, the power indicator lamp and the control circuit fuse in series; the indicating circuit is provided with a plurality of normally open nodes, a plurality of normally closed nodes, a plurality of public end pins and an indicating circuit fuse, and each normally open node and normally closed node are connected with an indicating lamp.

Furthermore, the control panel is provided with an indicator light, a power socket, a power indicator light, a button switch and a miniature relay base.

Furthermore, there are 4 respectively normally open node, normally closed node, and there are 4 respectively its normally open node pilot lamp and the normally closed node pilot lamp that corresponds.

Furthermore, the number of the common terminal pins is 4.

Further, the fixed shell is an insulating shell.

Further, the indicator lamp has a direct current voltage of 220V or 380V.

Furthermore, the control loop and the indication loop are both 1.5mm²The diameter cables are connected.

Further, the number of the indicator lamps is 9.

Further, the indicating circuit fuse is provided with 2.

The utility model has the beneficial effects that: the change of state through the pilot lamp reflects relay coil node and coil to whether the state that obtains being detected relay is good or bad, judge and whether need to change, avoided measuring the node one by one with the universal meter, increased substantially small-size auxiliary relay's detection efficiency.

Drawings

The description includes the following figures, the contents shown are respectively:

FIG. 1 is a diagram of an intermediate relay node in the present invention;

FIG. 2 is a wiring loop diagram of the test device of the present invention;

FIG. 3 is a view of the housing of the test device of the present invention;

labeled as: 1. the power supply comprises a power plug, 2, a miniature relay base, 3, a normally open node indicator lamp, 4, a normally closed node indicator lamp, 5, a power indicator lamp, 6, an indication circuit fuse, 7, a control circuit fuse and 8 button switches; 9. control loop, 10. indicator loop.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by way of the drawings are illustrative only and are not to be construed as limiting the utility model.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "coupled," and "disposed" are intended to be inclusive and mean, for example, that they may be fixedly coupled or disposed, or that they may be removably coupled or disposed, or that they may be integrally coupled or disposed. The specific meaning of the above terms in the present technology can be understood by those of ordinary skill in the art as appropriate.

For the purpose of facilitating an understanding of the present invention, the present invention will be further explained by way of specific embodiments with reference to the accompanying drawings, which are not intended to limit the present invention.

It should be understood by those skilled in the art that the drawings are merely schematic representations of embodiments and that the elements shown in the drawings are not necessarily required to practice the utility model.

Example 1

The embodiment 1 of the utility model provides an intermediate relay inspection device, which controls a coil to be electrified by controlling a control button on an operation panel, so that the state of a node is changed, and the state of a corresponding indicator lamp is changed.

As shown in fig. 1 to 3, in this embodiment 1, an intermediate relay inspection apparatus mainly includes the following structure:

the fixed shell is provided with an operating mechanism and an indicating panel; a control loop and an indication loop are arranged in the fixed shell;

the control circuit is connected with the indicating circuit in parallel, and the control circuit is connected with the button switch, the power indicator lamp and the control circuit fuse in series; be equipped with a plurality of normally open nodes, a plurality of normal close node, a plurality of public end pin and instruction return circuit fuse on the instruction return circuit, each normally open node and normal close node all are connected with an pilot lamp.

In this embodiment 1, the control panel is provided with an indicator light, a power socket, a power indicator light, a push switch, and a small relay base.

The number of the normally open nodes and the number of the normally closed nodes are respectively 4, and the number of the normally open node indicator lamps and the number of the normally closed node indicator lamps corresponding to the normally open nodes are respectively 4; there are 4 common terminal pins.

Regarding the composition and principle of the small intermediate relay:

as shown in fig. 1, it is an intermediate relay node diagram. The small-sized intermediate relay consists of a coil, 4 normally open nodes and 4 normally closed nodes.

As shown in fig. 1, the intermediate relay includes 14 pins, including coil pin M and coil pin N, and the common terminal pins are I, J, K, L; the other pins A, B, C, D, E, F, G and H respectively form normally open or normally closed nodes with the common end, when the coil is not electrified, the normally open nodes are disconnected, the normally open nodes correspond to indicator lamps L1, L2, L3 and L4, the normally closed nodes are in an off state, the normally closed nodes correspond to indicator lamps L5, L6, L7 and L8, the indicator lamps are in a closed state and are normally on, the coil can be controlled to be powered on through a button switch 8 on the device, and the node state changes at the moment, so that the state of the corresponding indicator lamps changes. Through to the pilot lamp state change condition, can judge that whether auxiliary relay can continue to use to reach the effect of detection relay. The utility model is also suitable for 8-pin miniature relays.

The working principle of the present invention will be further explained with reference to the drawings and the embodiments.

As shown in fig. 3, a structure diagram of an intermediate relay inspection device shell, which is used for checking the detected coil voltage registration of a small intermediate relay before use, selecting AC 220V or AC 380V power input, detecting the insertion of the small intermediate relay into a base, electrifying the device, at this time, a control circuit 9 is not electrified, an indication circuit 10 is electrified, a coil of the small intermediate relay is in a power-off state, normally-open node indication lamps (L1, L2, L3 and L4) are not operated, normally-closed node indication lamps (L5, L6, L7 and L8) are lightened, which indicates that the normally-open and normally-closed nodes of the small intermediate relay are in a normal state before the coil is operated, and if the corresponding indication lamps are not in a right state, such as L1 is lightened, it indicates that the relay node (between pins a and I) fails to be normally disconnected, the relay needs to be replaced, and the relay can not be continuously used. If L5 is not lighted, it indicates that the relay normally-closed node (between pins E-I) fails to pull in normally and the relay needs to be replaced. If the indicator light indicates normal operation as follows.

When the button switch SB is pressed, the control loop 9 is electrified, the coil is electrified to act, the normally open node is closed, and the normally open node indicator lamps (L1, L2, L3 and L4) are lightened; the normally closed node disconnection normally closed node indicator lamps (L5, L6, L7, L8) are extinguished, which indicates that the intermediate relay coil and the node can normally act, and the relay can be continuously used. If the indicator light is not changed completely, the coil of the relay is electrified and does not act, and the relay needs to be replaced; and if part of the indicating lamps normally act, the normally open or normally closed nodes do not act, and the relay needs to be replaced.

This device reflects the change of relay coil node and coil through the state change of pilot lamp to whether the state that obtains being detected relay is good or bad, judge and whether need to change, avoided measuring the node one by one with the universal meter, increased substantially small-size auxiliary relay's detection efficiency.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts based on the technical solutions disclosed in the present invention.

Claims

1. The intermediate relay inspection device is characterized by comprising a fixed shell, wherein an operating mechanism and an indicating panel are arranged on the fixed shell; a control loop and an indication loop are arranged in the fixed shell;

2. The intermediate relay inspection device according to claim 1, wherein an indicator lamp, a power socket, a power indicator lamp, a push button switch, and a small relay base are provided on the indicator panel.

3. The intermediate relay inspection device according to claim 1, wherein there are 4 normally open nodes and 4 normally closed nodes, respectively, and there are 4 normally open node indicator lights and 4 normally closed node indicator lights, respectively, corresponding thereto.

4. The relay-testing apparatus as claimed in claim 1, wherein there are 4 of said common terminal pins.

5. The relay inspection device of claim 1, wherein the fixed housing is an insulating housing.

6. The intermediate relay inspection device according to claim 1, wherein the indicator lamp dc voltage is 220V or 380V.

7. An intermediate relay test device as claimed in claim 1, wherein said control circuit and said indication circuit are each 1.5mm in size²The diameter cables are connected.

8. The relay-testing device as claimed in claim 1, wherein said indicator lights are 9 in number.

9. The intermediate relay inspection device according to claim 1, wherein there are 2 indicating circuit fuses.