Signal extraction device for power filter electrical performance testing and power-on test

Abstract

The present invention discloses a signal extraction device for electrical performance testing and power-on test of a power filter. The mounting base can be positioned and connected to the housing of the power filter through its own positioning structure. A plurality of parallel pins or jack columns are fixedly installed on the plug-in mounting plate. A plurality of plug-in through holes are provided on the mounting base. The plug-in mounting plate is connected to the mounting base, and the first ends of the plurality of pins or jack columns respectively pass through the plurality of plug-in through holes and can be correspondingly connected to a plurality of lead-out jack columns or lead-out pins one by one. The first ends of a plurality of wires are respectively conductively connected to the second ends of the plurality of pins or jack columns. The present invention enables a plurality of lead-out jack columns or lead-out pins of the power filter to be conductively connected to a plurality of wires through the corresponding plurality of pins or jack columns. No matter how small the distance between the plurality of lead-out jack columns or lead-out pins of the power filter is, it does not affect the independent connection with external devices, ensuring the accuracy of the test results and the safety of the power-on test.

Description

Technical Field

[0001] The invention relates to an auxiliary device of a power filter, in particular to a signal lead-out device used for electrical performance testing and power-on testing of a power filter. Background Art

[0002] At present, power filters have been widely used in the field of electronic information due to their own advantages. In order to confirm whether the power filter meets the use requirements, it is necessary to conduct an electrical performance test on it; at the same time, in order to ensure that the power filter can work normally and stably between the power supply and the electronic equipment for a long time, the power filter is usually powered on before leaving the factory. Whether it is an electrical performance test or a power-on test, the lead-out end of the power filter needs to be connected to the equipment according to the corresponding requirements for electrical performance testing or power-on work, that is, the signal of the power filter is led out to the external device.

[0003] For most power filters that are led out by leads, welding pieces, screws or pins, the clamping heads of the test equipment and the power-on equipment can be clamped on the lead-out end of the power filter for direct connection. However, there is a type of power filter that leads out electrical signals through jack columns or pins that are relatively close. Since the spacing between adjacent lead-out jack columns or lead-out pins is very small, the clamping heads of the external test equipment and the power-on equipment cannot be clamped between two adjacent lead-out jack columns or lead-out pins. When the clamping head of the equipment is clamped on one of the lead-out jack columns or lead-out pins, it will inevitably contact other adjacent lead-out jack columns or lead-out pins. This will not only affect the results of the electrical performance test, but also there is a risk of short circuit between lines, and the power-on test cannot be performed at all. Summary of the invention

[0004] The purpose of the present invention is to provide a signal lead-out device for power supply filter electrical performance testing and power-on testing in order to solve the above-mentioned problem. The device can solve the problem that the distance between adjacent lead-out jack columns or lead-out pins is too small to be clamped.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A signal extraction device for the electrical performance test and power-on test of a power filter, which is used to connect to a plurality of extraction jack columns or extraction pins on one side of the housing of the power filter, includes an insulating mounting base, conductive pins or jack columns, an insulating plug-in mounting plate, and conductive wires. The mounting base can be positioned and connected to the housing of the power filter through its own positioning structure. A plurality of the pins or jack columns arranged in parallel are fixedly installed on the plug-in mounting plate. A plurality of plug-in through holes are provided on the mounting base. The plug-in mounting plate is connected to the mounting base, and the first ends of the plurality of pins or jack columns respectively pass through the plurality of plug-in through holes and can be correspondingly connected to the plurality of extraction jack columns or extraction pins one by one. The first ends of the plurality of wires are respectively conductively connected to the second ends of the plurality of pins or jack columns.

[0007] Preferably, in order to facilitate quick and temporary stable connection with the housing of the power filter and facilitate quick disassembly, the mounting base is a "C"-shaped structure including an end plate and two side plates. A limiting platform is respectively provided at the connection positions of the two ends of the end plate of the mounting base with the first ends of the two side plates. A plurality of the plug-in through holes are provided on the end plate of the mounting base and are located between the two limiting platforms. The first ends of the plurality of pins are placed in the area between the two limiting platforms. The area between the two side plates of the mounting base is used to place the housing of the power filter. A rotating retaining piece is respectively installed at the second ends of the two side plates of the mounting base. The rotating retaining piece can rotate and can press the housing of the power filter against the two limiting platforms.

[0008] Preferably, in order to facilitate stable connection between the plug-in mounting plate and the mounting base, mounting base through holes are respectively provided at the outer positions of both ends of the area where the plurality of plug-in through holes are located on the end plate of the mounting base. Mounting plate through holes are respectively provided at the outer positions of both ends of the area where the plurality of pins or jack columns are located on the plug-in mounting plate. Two bolts respectively pass through the corresponding mounting plate through holes and the mounting base through holes and are connected to nuts to realize the connection between the plug-in mounting plate and the mounting base.

[0009] Preferably, in order to facilitate connection of the wires and facilitate application, the first end of the wire is provided with a welding end head, the welding end head is welded to the second end of the corresponding pin or jack column, the second end of the wire is provided with a clamping end head, and the outer layer of the wire is an insulating layer.

[0010] Preferably, in order to improve the electrical conductivity, the pin or jack column is a brass pin or jack column with a gold-plated surface, the wire core of the wire is a silver-plated copper core, and the outer layer of the wire is a polytetrafluoroethylene layer.

[0011] Preferably, in order to position the second ends of the wires to facilitate more reliable clamping of each wire without affecting each other, the signal lead-out device for the electrical performance test and power-on test of the power filter further includes a wire positioning device. The wire positioning device includes a strip-shaped positioning bottom plate and a strip-shaped positioning cover plate. One side of the positioning bottom plate is provided with a plurality of grooves corresponding to the plurality of wires. The width and depth of the grooves are slightly larger than the outer diameter of the wires. The distance between adjacent two grooves is determined according to actual test requirements. The positioning cover plate can be quickly installed on the positioning bottom plate to cover the open ends of the grooves.

[0012] Preferably, in order to ensure insulation and facilitate quick connection and disassembly of the positioning bottom plate and the positioning cover plate, both the positioning bottom plate and the positioning cover plate are insulating plates. Blind holes are provided at both ends of the positioning bottom plate, and protruding pins are provided at both ends of the positioning cover plate. The two pins are respectively placed in the two blind holes and are in frictional contact with each other.

[0013] The beneficial effects of the present invention are as follows:

[0014] By designing a mounting seat that can be quickly connected to the housing of the power filter, a plurality of pins or jack columns are installed on the plug-in mounting plate, and the pins or jack columns are installed on the mounting seat through the plug-in mounting plate, so that the plurality of lead-out jack columns or lead-out pins of the power filter can be conductively connected to the first ends of a plurality of wires through the corresponding plurality of pins or jack columns. The second ends of the wires are used to connect to an external electrical performance test device or a power-on test device. Since the second ends of the plurality of wires can be freely separated and maintained at a large distance, no matter how small the distance between the plurality of lead-out jack columns or lead-out pins of the power filter is, it does not affect the independent connection with the external device. Thus, the normal progress of the electrical performance test or power-on test of this type of power filter is ensured, the accuracy of the test results and the safety of the power-on test are guaranteed, and the problem that the power filter cannot perform the electrical performance test or power-on test due to the close distance between the lead-out jack columns or lead-out pins is effectively solved.

[0015] By designing a wire positioning device that can quickly position a plurality of wires, it is further ensured that the distance between the plurality of wires is large enough and the distance is uniform, which is more conducive to ensuring that there is no short circuit between the external device and the wire clamping connection. Moreover, the wire positioning device itself has a simple structure and low cost, and multiple wire positioning devices with different groove distances can be made for standby to meet the actual needs of different external devices. Description of the Drawings

[0016] Figure 1 is a perspective view of the signal lead-out device for the electrical performance test and power-on test of the power filter of the present invention before assembly. The wire positioning device is not shown in the figure;

[0017] Figure 2 It is a front view structural schematic diagram before assembly of the wire positioning device of the signal lead-out device for power filter electrical performance testing and power-on test described in the present invention;

[0018] Figure 3 It is a perspective view of the signal lead-out device for power filter electrical performance testing and power-on test described in the present invention during use. The wire positioning device is not shown in the figure. Specific embodiments

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] As shown in Figure 1 the signal lead-out device for power filter electrical performance testing and power-on test described in the present invention is used to connect with a plurality of lead-out jack posts (see the lead-out jack posts 21 in Figure 3 the housing 20 of the power filter shown in Figure 3 , which can also be lead-out pins) on one side of the housing of the power filter. It includes an insulating mounting base 5, a conductive pin 9 (which can also be a jack post. If the electrical connection body of the power filter is a lead-out pin, then it is a jack post here), an insulating plug-in mounting plate 10, and a conductive wire 12. The mounting base 5 can be positioned and connected to the housing of the power filter through its own positioning structure. A plurality of parallel pins 9 are fixedly installed on the plug-in mounting plate 10. A plurality of plug-in through holes 7 are provided on the mounting base 5. The plug-in mounting plate 10 is connected to the mounting base 5, and the first ends of the plurality of pins 9 respectively pass through the plurality of plug-in through holes 7 and can be correspondingly connected to the plurality of lead-out jack posts one by one, that is, the pins 9 are inserted into the jacks of the corresponding lead-out jack posts. The first ends of the plurality of wires 12 are respectively conductively connected to the second ends of the plurality of pins 9.

[0021] As shown in Figure 1As shown, preferably, the mounting base 5 is a "C"-shaped structure including an end plate (not separately marked in the figure) and two side plates (not separately marked in the figure). At the positions where the two ends of the end plate of the mounting base 5 are connected to the first ends of the two side plates, there is a limit platform 4 respectively. A plurality of insertion through holes 7 are provided on the end plate of the mounting base 5 and are located between the two limit platforms 4. The first ends of a plurality of pins 9 are placed in the area between the two limit platforms 4. The area 3 between the two side plates of the mounting base 5 is used to place the housing of the power filter. Rotating flappers 2 are respectively installed at the second ends of the two side plates of the mounting base 5. The rotating flappers 2 can rotate and can press the housing of the power filter against the two limit platforms 4. At the positions outside the two ends of the area where the plurality of insertion through holes 7 are located on the end plate of the mounting base 5, there are mounting base through holes (not marked in the figure). At the positions outside the two ends of the area where the plurality of pins 9 are located on the insertion mounting plate 10, there are mounting plate through holes (not marked in the figure). Two bolts 8 respectively pass through the corresponding mounting plate through holes and the mounting base through holes and are connected to nuts 6 to realize the connection between the insertion mounting plate 10 and the mounting base 5. The first end of the wire 12 is provided with a welding end 11. The welding end 11 is welded to the second end of the corresponding pin 9. The second end of the wire 12 is provided with a clamping end 13. The outer layer of the wire 12 is an insulating layer. The pin 9 is a brass pin with a gold-plated surface. The core of the wire 12 is a silver-plated copper core. The outer layer of the wire 12 is a polytetrafluoroethylene layer. As Figure 2 shown, the signal lead-out device for the electrical performance test and power-on test of the power filter further includes a wire positioning device. The wire positioning device includes a strip-shaped positioning base plate 18 and a strip-shaped positioning cover plate 17. On one side of the positioning base plate 18, there are a plurality of grooves 16 corresponding to a plurality of wires 12. The width and depth of the grooves 16 are slightly larger than the outer diameter of the wires 12. The distance between two adjacent grooves 16 is determined according to the actual test requirements. The positioning cover plate 17 can be quickly installed on the positioning base plate 18 and cover the open ends of the grooves 16. Both the positioning base plate 18 and the positioning cover plate 17 are insulating plates. Blind holes 15 are provided at both ends of the positioning base plate 18. Protruding pins 14 are provided at both ends of the positioning cover plate 17. The two pins 14 are respectively placed in the two blind holes 15 and are in frictional contact with each other.

[0022] Figure 1 Also shown are rivets 1 for installing the rotating flappers 2. The two rivets 1 are respectively riveted into the installation holes at the second ends of the two side plates of the mounting base 5. The rivets 1 can also be screws.

[0023] As Figures 1-3As shown in the figure, when in use, first adjust the angle of the rotary shutter 2 to make it outside the area 3 between the two side plates of the mounting base 5. Then, place the housing 20 of the power filter within the area 3 between the two side plates of the mounting base 5, and bring the lead jack posts 21 of the power filter close to the end plate of the mounting base 5. Insert the multiple pins 9 one by one into the jacks of the multiple lead jack posts 21. After insertion in place, the housing 20 of the power filter also closely adheres to the two limiting platforms 4. At this time, the mounting plate 19, the outer housing 20, and the pins 9 of the power filter are parallel to each other. Adjust the angle of the rotary shutter 2 again to rotate the rotary shutter 2 inward until the rotary shutter 2 tightly presses the housing 20 of the power filter against the two limiting platforms 4, thus realizing the connection between the mounting base 5 and the housing 20 of the power filter. At this time, reliable electrical conduction connection is also achieved between the lead jack posts 21 of the power filter and the corresponding wires 12. Place the positions of the multiple wires 12 close to their second ends respectively within the corresponding multiple grooves 16 on the positioning bottom plate 18, and then insert the pins 14 into the blind holes 15. The positioning cover plate 17 confines the wires 12 within the grooves 16, thus ensuring that the distances between the second ends of adjacent two wires 12 are basically the same and they cannot approach each other on their own. After the electrical clamping heads of the external electrical performance testing equipment or the power-on test equipment are correspondingly connected to the clamping ends 13 of the wires 12, the electrical performance testing or the power-on test can be started.

[0024] The above embodiments are only the preferred embodiments of the present invention and do not limit the technical solutions of the present invention. Any technical solutions that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the present invention.

Claims

1. A signal extraction device for power filter electrical performance testing and power-on test, which is used to connect with a plurality of extraction jack columns or extraction pins on one side of the housing of the power filter, and is characterized in that: It includes an insulating mounting base, conductive pins or jack posts, an insulating plug-in mounting plate, and conductive wires. The mounting base can be positioned and connected to the housing of the power filter through its own positioning structure. A plurality of the pins or jack posts arranged in parallel are fixedly installed on the plug-in mounting plate. The mounting base is provided with a plurality of plug-in through holes. The plug-in mounting plate is connected to the mounting base, and the first ends of the plurality of pins or jack posts respectively pass through the plurality of plug-in through holes and can be correspondingly connected to the plurality of lead-out jack posts or lead-out pins one by one. The first ends of the plurality of wires are respectively conductively connected to the second ends of the plurality of pins or jack posts. The mounting base is a "C"-shaped structure including an end plate and two side plates. At the positions where the two ends of the end plate of the mounting base are connected to the first ends of the two side plates, there is respectively a limiting platform. The plurality of plug-in through holes are arranged on the end plate of the mounting base and are located between the two limiting platforms. The first ends of the plurality of pins are placed in the area between the two limiting platforms. The area between the two side plates of the mounting base is used to place the housing of the power filter. A rotary retaining piece is respectively installed at the second ends of the two side plates of the mounting base. The rotary retaining piece can rotate and can press the housing of the power filter against the two limiting platforms. The first end of the wire is provided with a welding end head, and the welding end head is welded to the second end of the corresponding pin or jack post. The second end of the wire is provided with a clamping end head, and the outer layer of the wire is an insulating layer.

2. The signal extraction device for power filter electrical performance testing and power-on test according to claim 1, characterized in that: On the end plate of the mounting base, mounting base through holes are respectively arranged at the outer sides of both ends of the area where the plurality of plug-in through holes are located. On the plug-in mounting plate, mounting plate through holes are respectively arranged at the outer sides of both ends of the area where the plurality of pins or jack posts are located. Two bolts respectively pass through the corresponding mounting plate through holes and the mounting base through holes and are connected to nuts to realize the connection between the plug-in mounting plate and the mounting base.

3. The signal extraction device for power filter electrical performance testing and power-on test according to claim 1, characterized in that: The pins or jack posts are brass pins or jack posts with a gold-plated surface. The wire core of the wire is a silver-plated copper core, and the outer layer of the wire is a polytetrafluoroethylene layer.

4. The signal extraction device for power filter electrical performance testing and power-on test according to any one of claims 1-3, characterized in that: The signal lead-out device for the electrical performance test and power-on test of the power filter further includes a wire positioning device. The wire positioning device includes a strip-shaped positioning bottom plate and a strip-shaped positioning cover plate. One side of the positioning bottom plate is provided with a plurality of grooves corresponding to the plurality of wires. The width and depth of the grooves are slightly larger than the outer diameter of the wires. The distance between adjacent two grooves is determined according to actual test requirements. The positioning cover plate can be quickly installed on the positioning bottom plate and cover the open ends of the grooves.

5. The signal extraction device for power filter electrical performance testing and power-on test according to claim 4, characterized in that: Both the positioning bottom plate and the positioning cover plate are insulating plates. Blind holes are provided at both ends of the positioning bottom plate, and protruding pins are provided at both ends of the positioning cover plate. The two pins are respectively placed in the two blind holes and are in frictional contact with each other.

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