CN110133491A - Portable electric force system special purpose relay ability meter - Google Patents

Abstract

Portable electric force system special purpose relay ability meter, including relay tester ontology, relay tester ontology includes shell and two test leads, the side of the shell is installed by oxide layer removal device, the present invention increases oxide layer removal device on relay tester ontology, when there is oxide layer in the metal tip test point of test lead, it does not need in addition to find grinding device, only need shake handle that can drive sanding block rotation by gearbox, it polishes the metal tip test point of test lead, the oxide layer adhered in metal tip test point to quickly remove test lead, reduce the metal tip test point of test lead and the contact resistance of detected element, improve the accuracy of test.

Description

Portable Power System Dedicated Relay Performance Tester

technical field

The invention relates to a tester, more precisely a portable performance tester for special relays in electric power systems.

Background technique

I found that after using the relay performance tester I used for a period of time, the metal tip contacts of the test end are prone to form oxide layers and impurity layers, resulting in an increase in the contact resistance between the metal tip contacts and the test point, which affects the measurement of the relay performance tester accuracy. The relay performance tester needs to test the performance of the relay by testing the resistance of the relay when it is energized. In actual use, it is necessary to use the test end to contact the port of the relay to measure the internal resistance of the relay. If there is an oxide layer on the surface of the metal tip contact of the test end And impurity layers will increase the contact resistance, thereby affecting the test accuracy.

Contents of the invention

The purpose of the present invention is to provide a portable power system special relay performance tester, which can add an oxide layer removal device on the relay tester body. When an oxide layer appears on the metal tip test point of the test end, there is no need to find another grinding device. Just shake the handle to drive the grinding block to rotate through the gearbox to grind the metal tip test point of the test end, so as to quickly remove the oxide layer attached to the metal tip test point of the test end and reduce the contact between the metal tip test point of the test end and the component under test. The contact resistance improves the accuracy of the test.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

Portable power system special relay performance tester, including the relay tester body, the relay tester body includes a housing and two test terminals, one side of the housing is equipped with an oxide layer removal device, and the oxide layer removal device includes a gearbox , the casing of the gearbox is connected to the casing, the input shaft of the gearbox is connected to the handle, the output shaft of the gearbox is connected to the grinding block, one side of the casing of the gearbox is connected to a fixed frame, and a screw hole is set on the fixed frame, and the fixed frame is connected with the The U-shaped elastic plate is connected, and one side of the U-shaped elastic plate is connected with the supporting plate, and the supporting plate can cooperate with the grinding block.

In order to further realize the object of the present invention, the following technical solutions can also be adopted: two spring clips are connected on the housing.

One side of the casing is connected with a ventilation pipe, one end of the ventilation pipe communicates with the inside of the casing, and the other end of the ventilation pipe communicates with the outside.

A small flashlight is connected to the test terminal.

The grinding block is a wool brush head.

The grinding block is an alumina grinding head.

The advantage of the present invention is that: the present invention adds an oxide layer removal device to the body of the relay tester. When an oxide layer or an impurity layer appears on the metal tip test point of the test end, there is no need to find another grinding device, and only need to shake the handle to pass through. The gearbox drives the grinding block to rotate to grind the metal tip test point of the test end, so as to quickly remove the oxide layer attached to the metal tip test point of the test end, reduce the contact resistance between the metal tip test point of the test end and the component under test, and improve the test accuracy. Accuracy. The gearbox can adopt an acceleration gearbox, and the output speed is higher than the input speed, so that the user can rotate the grinding block at a high speed without turning the handle too quickly, thereby achieving a better grinding effect. The invention also has the advantages of simple and compact structure, low manufacturing cost and easy use.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a structural schematic diagram of the present invention.

Marked parts: 1 Relay tester body 2 Vent pipe 3 Housing 4 Handle 5 Gearbox 6 Polishing block 7 Support plate 8 U-shaped elastic plate 9 Adjusting bolt 10 Fixing frame 11 Spring clip 12 Small flashlight.

Detailed ways

The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

The portable power system special relay performance tester, as shown in Figure 1, includes a relay tester body 1, the relay tester body 1 includes a housing 3 and two test terminals, and an oxide layer removal device is installed on one side of the housing 3 , the oxide layer removal device includes a gearbox 5, the casing of the gearbox 5 is connected to the housing 3, the input shaft of the gearbox 5 is connected to the handle 4, the output shaft of the gearbox 5 is connected to the grinding block 6, and the casing of the gearbox 5 is The side is connected to the fixed frame 10, and screw holes are provided on the fixed frame 10. The fixed frame 10 is connected with the U-shaped elastic plate 8 through reaming, and one side of the U-shaped elastic plate 8 is connected with the supporting plate 7, and the supporting plate 7 can cooperate with the grinding block 6 .

In the present invention, an oxide layer removal device is added to the relay tester body 1. When an oxide layer appears on the metal tip test point of the test end, there is no need to find another grinding device, and the grinding block 6 can be driven by the gearbox 5 only by shaking the handle 4 Rotate to grind the metal tip test point of the test end, so as to quickly remove the oxide layer and impurity layer attached to the metal tip test point of the test end, reduce the contact resistance between the metal tip test point of the test end and the component under test, and improve the accuracy of the test . The gearbox 5 can adopt an acceleration gearbox, and the output speed is higher than the input speed, so that the user can rotate the grinding block 6 at a high speed without turning the handle 4 too quickly, thereby achieving a better grinding effect. The supporting plate 7 of the present invention can hold one side of the metal tip test point of the test end when the grinding block 6 is grinding the metal tip test point of the test end, thereby making the grinding more stable, and improving the connection between the metal tip test point of the test end and the grinding block. The pressure between 6 and the grinding process mainly depends on the user's hand strength to control the position of the metal tip test point of the test end. Stability at the cutting edge test point. The adjusting bolt 9 can adjust the distance between the supporting plate 7 and the grinding block 6, so that the supporting plate 7 can better provide a fulcrum for the metal tip test point of the test end, and the U-shaped elastic plate 8 of the present invention can support the supporting plate 7. The force is buffered to avoid excessive contact between the metal tip test point of the test end and the grinding block 6.

Scope of application, material selection and feasibility analysis for specific implementation: The actual samples we made use the drawings in the instructions as drawings, and are implemented according to the proportions and matching methods of each part in the drawings in the instructions. The connections described are strong adhesive connections, welding , riveting, flange connection, one-piece connection and other commonly used connection methods, in actual production, the corresponding connection method, thickness and strength of the connection point can be selected according to the actual connection strength without creativity.

Two spring clips 11 are connected to the housing 3 .

The spring clip 11 of the present invention can clamp the test terminal when the test terminal is not in use, so as to avoid damage caused by disorderly placement of the test terminal.

One side of the casing 3 is connected to the ventilation pipe 2, one end of the ventilation pipe 2 communicates with the inside of the casing 3, and the other end of the ventilation pipe 2 communicates with the outside.

The ventilation pipe 2 of the present invention can have the same internal and external pressure of the housing 3 to avoid excessive internal pressure of the housing 3 .

A small flashlight 12 is connected to the test terminal.

The small flashlight 12 of the present invention can adopt the kind of small flashlight with batteries on the key chain, so that when the test point is relatively dark, the flashlight can be turned on, thereby illuminating the test point, and it is convenient for the user to watch the matching state of the test terminal and the test point .

The grinding block 6 is a wool brush head.

The grinding block 6 of the present invention is a wool brush head, which can remove the oxide layer attached to the surface of the metal tip test point of the test end under high-speed rotation, and will not cause excessive wear to the metal tip test point of the test end.

The grinding block 6 is an alumina grinding head.

The grinding block 6 of the present invention is an alumina grinding head, which can more quickly remove the oxide layer attached to the surface of the metal tip test point of the test end.

Finally, it should be noted that: the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention.

Claims (7)

1. Portable power system special relay performance tester, characterized in that it includes a relay tester body (1), and the relay tester body (1) includes a housing (3) and two test terminals, characterized in that: the housing One side of the body (3) is equipped with an oxide layer removal device, the oxide layer removal device includes a gearbox (5), the casing of the gearbox (5) is connected with the housing (3), and the input shaft of the gearbox (5) is connected The handle (4), the output shaft of the gearbox (5) is connected with the grinding block (6). 2. The special relay performance tester for portable electric power system according to claim 1, characterized in that: one side of the casing of the gearbox (5) is connected with a fixed mount (10), and a screw hole is provided on the fixed mount (10), Fixture (10) is connected with U-shaped elastic plate (8) by reaming, and one side of U-shaped elastic plate (8) connects supporting plate (7), and supporting plate (7) can cooperate with polishing block (6). 3. The portable power system special relay performance tester according to claim 1, characterized in that two spring clips (11) are connected to the housing (3). 4. The special relay performance tester for portable electric power system according to claim 1, characterized in that: one side of the housing (3) is connected to the air pipe (2), and one end of the air pipe (2) is connected to the housing ( 3) is connected internally, and the other end of the vent pipe (2) is connected with the outside world. 5. The portable power system special relay performance tester according to claim 1, characterized in that: a small flashlight (12) is connected to the test terminal. 6. The portable power system special relay performance tester according to claim 1, characterized in that: the grinding block (6) is a wool brush head. 7. The portable power system special relay performance tester according to claim 1, characterized in that: the grinding block (6) is an alumina grinding head.