CN218630066U

CN218630066U - Withstand voltage test tool for capacitor

Info

Publication number: CN218630066U
Application number: CN202222987283.6U
Authority: CN
Inventors: 况光禄; 陈涛; 李文滔; 叶虎; 何强
Original assignee: State Run Factory 4326 of China Zhenhua Group Xinyun Electronic Comp and Dev Co Ltd
Current assignee: State Run Factory 4326 of China Zhenhua Group Xinyun Electronic Comp and Dev Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-14
Anticipated expiration: 2032-11-09

Abstract

The utility model provides a condenser high-voltage insulation test frock, including single-pole triple-throw switch, resistor and electric capacity socket, the first end of single-pole triple-throw switch and the first end electric connection of electric capacity socket, single-pole triple-throw switch second end and electric capacity socket second end electric connection, resistor electric connection are between single-pole triple-throw switch third end and electric capacity socket second end. Adopt the technical scheme of the utility model, after the withstand voltage test that goes on the condenser ends, stir single-pole triple-throw switch immediately, make the condenser, single-pole triple-throw switch and resistor constitute closed circuit loop, large capacity condenser or large batch condenser pass through the resistor and discharge fast, draw low condenser both ends voltage rapidly, the resistor avoids the condenser both ends to produce electric arc through self generating heat, afterwards, stir single-pole triple-throw switch again, make the condenser both ends form the short circuit connection state through single-pole triple-throw switch, the condenser slowly discharges again, effectively avoid electric arc to damage condenser both ends binding post.

Description

Withstand voltage test tool for capacitor

Technical Field

The utility model relates to a condenser technical field especially indicates a withstand voltage test frock of condenser.

Background

The capacitor is widely applied to various electronic instruments and power equipment, so that the annual production yield of related capacitor manufacturing enterprises to the capacitor is huge, in order to ensure the production quality of the capacitor, the capacitor needs to be subjected to voltage withstanding test after preparation, during the voltage withstanding test, a first end of the capacitor is electrically connected with a positive electrode of a voltage withstanding tester, a second end of the capacitor is electrically connected with a negative electrode of the voltage withstanding tester, then the capacitor is charged through the voltage withstanding tester, the maximum energy storage voltage which can be reached by the capacitor is tested, after the test is finished, the voltage withstanding tester is evacuated, the capacitor needs to be discharged, for a large-capacity capacitor, because the voltage at two ends of the capacitor is extremely high after the capacitor is charged, when the large-capacity capacitor or a large batch of capacitors are discharged simultaneously, arcs are easily generated at two ends of the capacitor, the arcs can damage connecting terminals at two ends of the capacitor, and therefore, after the voltage withstanding test of the capacitor is finished, special electric equipment is generally needed to discharge the capacitor.

In the prior art, the publication numbers are: the patent document CN217332704U discloses a power capacitor short circuit discharge test circuit, which comprises a charging circuit, a discharging circuit and a capacitor sample, wherein the charging circuit, the discharging circuit and the capacitor sample are connected in parallel; the discharging circuit comprises a discharging spherical gap voltage measuring device, a wave regulating resistor, a wave regulating inductor and a Rogowski coil, wherein the discharging spherical gap voltage measuring device, the wave regulating resistor and the wave regulating inductor are sequentially connected in series and then are connected with a capacitor test article in parallel, the Rogowski coil is sleeved on a lead connected with the discharging spherical gap voltage measuring device and the wave regulating resistor, and one spherical electrode of the discharging spherical gap voltage measuring device is installed at the tail end of a piston rod of the telescopic cylinder. This patent document has guaranteed tester's safety through promoting the condenser speed of charging. However, the technical solutions provided by the above patent documents cannot reduce the damage of the capacitor caused by the arc generated at the initial discharge of the capacitor, and are complex in structure, high in manufacturing cost, and not suitable for common capacitor manufacturers, so that there is an urgent need to develop a novel, safe, and easy-to-use capacitor voltage withstand test tool.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a withstand voltage test tool for capacitor.

The utility model discloses a following technical scheme can realize.

The utility model provides a withstand voltage test fixture of capacitor, including single-pole triple-throw switch, resistor and electric capacity socket, the first end of single-pole triple-throw switch with the first end electric connection of electric capacity socket, single-pole triple-throw switch second end with electric capacity socket second end electric connection, resistor electric connection in single-pole triple-throw switch third end with between the electric capacity socket second end.

The capacitor withstand voltage test tool further comprises an insulating bottom plate (4), and the single-pole triple-throw switch, the resistor and the capacitor socket are fixedly connected with the insulating bottom plate.

And a load electric appliance is also connected between the first end of the single-pole three-throw switch and the first end of the capacitor socket in series and is fixedly connected with the insulating bottom plate.

The load electric appliance is an electric lamp.

The number of the capacitor sockets is multiple, and the plurality of the capacitor sockets are arranged on the insulating bottom plate in a straight line.

The plurality of capacitive receptacles are connected together in parallel at first ends and connected together in parallel at second ends.

The distance between any two adjacent capacitor sockets is equal.

The number of the capacitor sockets is more than 10.

The resistor is a variable resistance box.

The beneficial effects of the utility model reside in that: adopt the technical scheme of the utility model, after the withstand voltage test that adopts the withstand voltage tester to go on to the condenser ends, stir single-pole triple-throw switch immediately, make the condenser, single-pole triple-throw switch and resistor constitute closed circuit loop, large capacity condenser or large batch condenser can discharge simultaneously, the electric energy flows in the resistor, the resistor gives off the energy to the air through generating heat, make large capacity condenser or large batch condenser can discharge fast through the resistor when initial, make large capacity condenser or large batch condenser both ends terminal voltage reduce rapidly, thereby avoid producing electric arc and damage the binding post at condenser both ends, afterwards, stir single-pole triple-throw switch again, make the condenser both ends form the short-circuit connection state through single-pole triple-throw switch, large capacity condenser or large batch condenser then can slowly discharge under the short-circuit connection state, because condenser both ends terminal voltage has reduced this moment, also can not produce electric arc, the phenomenon that electric arc damaged condenser both ends binding post has effectively been avoided.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a plan view of the present invention.

In the figure: 1-single-pole three-throw switch, 2-resistor, 3-capacitance socket, 4-insulation bottom plate and 5-load electric appliance.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

As shown in fig. 1 and fig. 2, the utility model provides a withstand voltage test fixture for capacitor, including single-pole triple-throw switch 1, resistor 2 and electric capacity socket 3, the first end electric connection of single-pole triple-throw switch 1 and electric capacity socket 3, single-pole triple-throw switch 1 second end and electric capacity socket 3 second end electric connection, resistor 2 electric connection between single-pole triple-throw switch 1 third end and electric capacity socket 3 second end.

Adopt the technical scheme of the utility model, after the withstand voltage test that adopts the withstand voltage tester to go on to the condenser ends, stir single-pole triple-throw switch immediately, make the condenser, single-pole triple-throw switch and resistor constitute closed circuit loop, large capacity condenser or large batch condenser can discharge simultaneously, the electric energy flows in the resistor, the resistor gives off the energy to the air through generating heat, make large capacity condenser or large batch condenser can discharge fast through the resistor when initial, make large capacity condenser or large batch condenser both ends terminal voltage reduce rapidly, thereby avoid producing electric arc and damage the binding post at condenser both ends, afterwards, stir single-pole triple-throw switch again, make the condenser both ends form the short-circuit connection state through single-pole triple-throw switch, large capacity condenser or large batch condenser then can slowly discharge under the short-circuit connection state, because condenser both ends terminal voltage has reduced this moment, also can not produce electric arc, the phenomenon that electric arc damaged condenser both ends binding post has effectively been avoided.

Specifically, the capacitor withstand voltage test tool further comprises an insulating bottom plate 4, and the single-pole triple-throw switch 1, the resistor 2 and the capacitor socket 3 are fixedly connected with the insulating bottom plate 4. Thereby can bear single-pole triple-throw switch 1, resistor 2 and electric capacity socket 3 through insulating bottom plate 4, make the utility model discloses portable or shift.

In addition, a load electrical appliance 5 is connected in series between the first end of the single-pole three-throw switch 1 and the first end of the capacitor socket 3, and the load electrical appliance 5 is fixedly connected with the insulating bottom plate 4. The load appliance 5 is a lamp. When the capacitor is in the short circuit connection state, the capacitor supplies power to the load electric appliance 5 to ensure the electric quantity of the lamp, and because the voltage of the two ends of the capacitor is reduced at the moment, the capacitor is in the slow discharge state, the load electric appliance 5 can not be impacted, and the load electric appliance 5 is prevented from being damaged.

Specifically, the number of the capacitor sockets 3 is plural, and the plural capacitor sockets 3 are arranged in a line on the insulating base plate 4. The first ends of the plurality of capacitive sockets 3 are connected together in parallel and the second ends of the plurality of capacitive sockets 3 are connected together in parallel. Any two adjacent capacitor sockets 3 are equally spaced. The number of the capacitor sockets 3 is more than 10. The resistor 2 is a variable resistance box.

Claims

1. The utility model provides a withstand voltage test frock of condenser which characterized in that: the single-pole triple-throw switch comprises a single-pole triple-throw switch (1), a resistor (2) and a capacitance socket (3), wherein the first end of the single-pole triple-throw switch (1) is electrically connected with the first end of the capacitance socket (3), the second end of the single-pole triple-throw switch (1) is electrically connected with the second end of the capacitance socket (3), and the resistor (2) is electrically connected between the third end of the single-pole triple-throw switch (1) and the second end of the capacitance socket (3).

2. The capacitor withstand voltage test tool according to claim 1, characterized in that: the capacitor withstand voltage test tool further comprises an insulating bottom plate (4), and the single-pole triple-throw switch (1), the resistor (2) and the capacitor socket (3) are fixedly connected with the insulating bottom plate (4).

3. The capacitor withstand voltage test tool according to claim 2, characterized in that: and a load electric appliance (5) is also connected between the first end of the single-pole three-throw switch (1) and the first end of the capacitor socket (3) in series, and the load electric appliance (5) is fixedly connected with the insulating bottom plate (4).

4. The capacitor withstand voltage test tool according to claim 3, characterized in that: the load electric appliance (5) is an electric lamp.

5. The capacitor withstand voltage test tool according to claim 3, characterized in that: the number of the capacitor sockets (3) is multiple, and the plurality of capacitor sockets (3) are arranged on the insulating bottom plate (4) in a straight line.

6. The capacitor withstand voltage test tool according to claim 5, characterized in that: the first ends of the plurality of capacitor sockets (3) are connected together in parallel, and the second ends of the plurality of capacitor sockets (3) are connected together in parallel.

7. The capacitor withstand voltage test tool according to claim 5, characterized in that: the distance between any two adjacent capacitor sockets (3) is equal.

8. The capacitor withstand voltage test tool according to claim 5, characterized in that: the number of the capacitor sockets (3) is more than 10.

9. The capacitor withstand voltage test tool according to claim 1 or 2, characterized in that: the resistor (2) is a variable resistance box.