CN217879500U - Power device voltage-resistant insulation batch testing device - Google Patents
Power device voltage-resistant insulation batch testing device Download PDFInfo
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- CN217879500U CN217879500U CN202121775196.3U CN202121775196U CN217879500U CN 217879500 U CN217879500 U CN 217879500U CN 202121775196 U CN202121775196 U CN 202121775196U CN 217879500 U CN217879500 U CN 217879500U
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Abstract
The utility model relates to a withstand voltage insulation of power device is testing arrangement in batches. The utility model provides a withstand voltage insulation of power device is testing arrangement in batches, includes the fixed plate and is located the lifter plate of fixed plate top, be equipped with a plurality of first probes that set up towards in lifter plate department, fixed plate department is equipped with a plurality of first probes that set up, and every first probe corresponds a power device that awaits measuring at least, be equipped with the conducting block that is used for fixed power device that awaits measuring between fixed plate and the lifter plate, the fixed plate downside is equipped with the bottom plate, bottom plate circumference outer fringe is located the fixed plate circumference outside, the conducting block includes horizontal part and perpendicular portion, the hole of stepping down that runs through around the fixed plate is equipped with, the downthehole second probe that sets up towards the back that is equipped with of stepping down. The utility model discloses can once only carry out the detection of the power device of more quantity, it is very convenient to use, and the structure is more simple, and the commonality is better.
Description
Technical Field
The utility model relates to a withstand voltage insulation of power device is testing arrangement in batches.
Background
After the power devices are produced, the polarity voltage-withstanding insulation detection of the power devices needs to be carried out one by one, so that the time is extremely consumed, and the labor cost of detection workers is high.
For improving production efficiency, chinese patent application No. 202021377721.1 discloses a power device insulation test device, which comprises a housing, the inboard middle part fixed mounting of shell has the vertical straight line actuating mechanism down of output, straight line actuating mechanism's the horizontal fixed mounting of output has the probe card, the bottom of shell is provided with the loading board through the slip of Y axle slide rail, and the one end of Y axle slide rail extends the shell, be provided with the regulation base of settling the module on the loading board, adjust the base and constitute by settling the mother board that can follow Y axle direction translation adjusting position on the loading board and the daughter board that slides and set up in the inside regulation position that slides along the X axle of recess on mother board upside, offer the interior slot that is used for settling the module on the daughter board. The above scheme has the following defects: the device to be detected needs to be fixed on the module, the module needs to be fixed on the daughter board in a positioning manner, the daughter board needs to be fixed on the mother board in a positioning manner, the structure is complicated due to use troubles, if voltage-resistant insulation detection is needed to be carried out on power devices of various models, a plurality of modules, daughter boards and mother boards are needed, and storage of devices is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can carry out withstand voltage insulating skew test to power device, and convenient to use, simple structure's withstand voltage insulating batch test device of power device.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a withstand voltage insulation of power device is testing arrangement in batches, includes the fixed plate and is located the lifter plate of fixed plate top, be equipped with a plurality of first probes that set up towards in lifter plate department, fixed plate department is equipped with a plurality of first probes that set up, and every first probe corresponds a power device that awaits measuring at least, be equipped with the conducting block that is used for fixed power device that awaits measuring between fixed plate and the lifter plate, the fixed plate downside is equipped with the bottom plate, bottom plate circumference outer fringe is located the fixed plate circumference outside, the conducting block includes horizontal part and perpendicular portion, the horizontal part sets up and is fixed in the middle of the perpendicular portion along the horizontal direction, the downside all has the installation position that is used for fixing the power device that awaits measuring in the location on the horizontal part, and every installation position department of horizontal part all is equipped with the insulating layer, the hole of stepping down that runs through around the fixed plate is equipped with, the downthehole of stepping down is equipped with the second probe that sets up backward, the bottom plate has the limit structure that is used for restricting the perpendicular portion to move backward, and when the conducting block is placed in the fixed plate upside, the horizontal part supports in the fixed plate upside, erect portion rear side, erect the portion and be located the fixed plate rear side, and the second probe contacts with the perpendicular portion.
When the device is used, a plurality of power devices to be tested are fixed at the installation positions of the conductive blocks through fasteners or other modes, so that the insulating layers on the conductive blocks are positioned between the metal sheets of the power devices to be tested and the conductive blocks; then, placing the conductive block on a fixing plate, wherein the transverse part of the conductive block is supported on the fixing plate, the first probe at the fixing plate is contacted with the power device to be tested positioned on the lower side of the transverse part, and the second probe is contacted with the vertical part; and then, descending the lifting plate to enable the first probe positioned at the lifting plate to be in contact with the power device to be tested positioned above the transverse part, and finally, carrying out voltage-resistant insulation detection on the conductive block by using the conventional voltage-resistant insulation detector. The qualification rate of the power devices is high, so that the voltage-resistant insulation detection of dozens of power devices can be carried out at one time, and unqualified devices exist on the conductive block for one time only in batch detection of dozens of times or even hundreds of times. The insulating layer can be made of any insulating material in the existing voltage-resistant insulation detection, can be fixed with the conductive block in any existing mode, and can also be positioned between the conductive block and the power device to be tested by being purely clamped. Wherein, limit structure is used for guaranteeing the effective contact of vertical part and second probe. The upper part and the lower part of the transverse part of the conductive block of the device can be used for placing power devices to be tested, can detect more power devices at one time, and is very convenient to use; and when the test of different model power device is carried out to needs, only need carry out the change of the horizontal portion of conducting block, the utility model discloses the structure is more simple, will be used for the spare part of different model power device tests still less.
Preferably, the fixed plate or the bottom plate is provided with at least two guide rods extending upwards, the lifting plate is sleeved outside the guide rods, a top plate is arranged between the upper ends of the two guide rods, and the top plate is provided with an adjusting mechanism capable of driving the lifting plate to lift. The guide rod is used for guiding the lifting plate to avoid the lifting plate to incline, and therefore effective contact between the first probe and the power device to be tested is guaranteed.
Preferably, the first probe and the second probe both comprise a sleeve part and a rod part, one end of the rod part is provided with a contact end used for contacting with a power device to be tested, the other end of the rod part is provided with a limiting bulge, the width of the limiting bulge is larger than the inner diameter of the sleeve part, an opening of the sleeve part close to the contact end is provided with an annular bulge extending towards the inner side in the circumferential direction, a return spring is arranged between the annular bulge and the limiting bulge, or a return spring is arranged between the annular bulge and the contact end. The reset spring is used for ensuring the contact end of the first probe and the effective structure of the power device to be tested.
Preferably, the contact end is provided with a plurality of needle points arranged in an array, and the shape and the size of each needle point are the same. By arranging a plurality of needle points, one first probe can better correspond to at least two power devices to be tested.
Preferably, the transverse part is provided with a positioning hole for positioning a fastener, the fastener comprises a first fastener part and a second fastener part, when the power device to be tested is fixed with the transverse part through the fastener, the first fastener part extends into the positioning hole, and the power device is limited between the second fastener part and the conductive block; the insulating layer covers the hole wall of the positioning hole, or the fastener is made of insulating materials, or the transverse part is provided with a fixing hole, an insulating block made of insulating materials is fixed in the fixing hole, and the insulating block is provided with the positioning hole. The power device is provided with a metal sheet, the metal sheet is provided with a through hole, and the power device to be tested and the conductive block can be fixedly connected in a mode that a bolt-shaped fastener penetrates through the through hole and then extends into the positioning hole. The first probe is not contacted with the pin end of the power device to be tested but contacted with the metal sheet, so that the contact area of the first probe and the conductive part of the power device to be tested can be increased, and the effective test can be ensured.
Preferably, the fixed plate or the bottom plate is provided with two limiting blocks which are oppositely arranged, and the distance between the two limiting blocks is gradually increased from the middle parts to the two ends of the limiting blocks; when the conductive block is supported on the fixing plate, the vertical part of the conductive block is positioned between the two limit blocks. The limiting block can play a role in guiding and positioning, so that the vertical part of the conductive block can be guided conveniently when moving, and the effective contact between the first probe and a power device to be tested on the conductive block is ensured.
Preferably, the bottom plate is provided with a yielding groove, the cross section of the yielding groove is the same as the outer edge of the cross section of the lower end of the vertical part, and the limiting structure is the groove wall of the yielding groove. The vertical part is positioned in an outer edge positioning mode so as to ensure that the first probe is effectively contacted with a power device to be tested on the conductive block.
The upper part and the lower part of the transverse part of the conductive block of the utility model can be used for placing power devices to be tested, can detect more power devices at one time, and is very convenient to use; when the test of different model power device is carried out to needs, only need carry out the change of the horizontal portion of conducting block, the utility model discloses the structure is more simple, and the commonality is better, and the spare part that will be used for different model power device tests still less, is convenient for accomodate and deposits.
Drawings
Fig. 1 is a schematic structural diagram of a power device to be subjected to a withstand voltage test in this embodiment;
fig. 2 is a schematic structural view of the present invention;
FIG. 3 is another schematic structural diagram of the present invention;
fig. 4 is a schematic structural diagram of the conductive block of the present invention after being fixed to a power device to be measured;
fig. 5 is a cross-sectional view of a conductive block of the present invention;
fig. 6 is a schematic structural diagram of the first probe and the second probe of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1, the power device 1 to be subjected to the withstand voltage test of the present embodiment has a metal plate 12 electrically connected to a pin terminal 11, and a through hole 13 is provided in the metal plate 12.
By shown in fig. 2 and 3, the utility model discloses a withstand voltage insulation of power device is testing arrangement in batches, lifter plate 3 including fixed plate 2 and be located 2 tops of fixed plate, be equipped with first probe 4 that a plurality of orientations set up in lifter plate 3 department, 2 departments of fixed plate are equipped with a plurality of first probes that set up, every first probe 4 corresponds a power device 1 that awaits measuring at least, be equipped with the conducting block 5 that is used for fixed power device 1 that awaits measuring between fixed plate 2 and lifter plate 3, 2 downside of fixed plate are equipped with bottom plate 6, 6 circumference outer fringe of bottom plate are located the circumference outside of 1 circumference outer fringe of fixed plate, the hole of stepping down that runs through around fixed plate 2 is equipped with, the downthehole second probe 7 that sets up backward that steps down that is equipped with, bottom plate 6 has the limit structure who is used for restricting conducting block 5 backward movements.
As shown in fig. 2 to 5, the conductive block 5 includes a horizontal portion 51 and a vertical portion 52, the horizontal portion 51 is disposed along a horizontal direction and fixed in the middle of the vertical portion 52, the upper and lower sides of the horizontal portion 51 are provided with mounting positions for positioning and fixing the power device 1 to be tested, each mounting position of the horizontal portion 51 is provided with an insulating layer (not shown in the figure), the bottom plate is provided with an abdicating groove 61 with an upward opening and a cross-sectional shape identical to that of the lower end of the vertical portion 52, and the wall of the abdicating groove 61 is provided with a limiting structure. When the conductive block 5 is placed on the upper side of the fixed plate 2, the horizontal portion 51 is supported on the upper side of the fixed plate 2, the vertical portion 52 is located on the rear side of the fixed plate 2, and the second probe 7 is in contact with the vertical portion 52.
Wherein, a piece of insulating layer can be arranged at the mounting position of each transverse part, and a plurality of insulating layers are arranged on the upper side and the lower side of each transverse part; insulating layers capable of covering the upper surface and the lower surface of the transverse part can be laid on the upper side and the lower side of the transverse part; the insulating layer can be fixed with the conductive block in various ways, and the insulating layer can also be adhered to the power device to be detected.
As shown in fig. 2 and 3, the bottom plate 6 is provided with two guide rods 62 extending upward, the lifting plate 3 is sleeved outside the guide rods 62, a top plate 63 is arranged between the upper ends of the two guide rods 62, and the top plate 63 is provided with an adjusting mechanism 64 capable of driving the lifting plate 3 to lift. The adjusting mechanism 64 may be a cylinder, an electric push rod, or a link structure driven by human power to move the lifting plate up and down. The bottom plate 6 is provided with two limiting blocks 65 which are oppositely arranged, and the distance between the two limiting blocks 65 is gradually increased from the middle parts to the two ends of the limiting blocks 65; when the conductive block 5 is supported on the fixing plate 2, the vertical portion 52 of the conductive block 5 is located between the two stoppers 65.
As shown in fig. 2 to 5, the transverse guiding portion 51 is provided with a fixing hole penetrating vertically, an insulating block 53 having a square cross-section outer edge and a positioning hole 54 penetrating vertically is provided in the fixing hole, the positioning hole is used for positioning a bolt-shaped fastener (not shown in the figures), the fastener includes a first fastener portion and a second fastener portion, when the power device 1 to be tested is fixed to the transverse portion 51 by the fastener, the first fastener portion penetrates through the through hole 13 and then is in threaded fit with the positioning hole 52, and the power device 1 is limited between the second fastener portion and the transverse portion. Wherein the fastener may be made of an insulating material.
As shown in fig. 2, 3 and 6, each of the first probe 4 and the second probe 7 includes a sleeve portion 41 and a rod portion 42, one end of the rod portion 42 is provided with a contact end 43 for contacting the power device 1 to be tested, the maximum width of the contact end 43 is greater than the inner diameter of the sleeve portion 41, the contact end 43 is provided with a plurality of needle tips 44 arranged in an array, each of the needle tips 44 has the same shape and size, the other end of the rod portion 42 is provided with a position-limiting protrusion 45, the width of the position-limiting protrusion 45 is greater than the inner diameter of the sleeve portion 41, an opening of the sleeve portion 41 adjacent to the contact end 43 is provided with an annular protrusion 46 extending towards the circumferential inner side, a return spring (not shown in the drawing) is arranged between the annular protrusion 46 and the position-limiting protrusion, or a return spring (not shown in the drawing) is arranged between the annular protrusion 46 and the contact end 43.
The upper part and the lower part of the transverse part of the conductive block of the utility model can be used for placing power devices to be tested, can detect more power devices at one time, and is very convenient to use; when the test of different model power device is carried out to needs, only need carry out the change of the horizontal portion of conducting block, the utility model discloses the structure is more simple, and the commonality is better, and the spare part that will be used for different model power device tests still less, is convenient for accomodate and deposits.
Claims (7)
1. The utility model provides a withstand voltage insulation of power device is testing arrangement in batches, its characterized in that includes the fixed plate and is located the lifter plate of fixed plate top, be equipped with a plurality of first probes that set up towards in lifter plate department, fixed plate department is equipped with a plurality of first probes that set up, and every first probe corresponds a power device that awaits measuring at least, be equipped with the conducting block that is used for fixed power device that awaits measuring between fixed plate and the lifter plate, the fixed plate downside is equipped with the bottom plate, bottom plate circumference outer fringe is located the fixed plate circumference outside, the conducting block includes horizontal part and perpendicular portion, the horizontal part sets up and is fixed in the middle of the perpendicular portion along the horizontal direction, the downside all has the installation position that is used for fixing the power device that awaits measuring in the location on the horizontal part, and every installation position department of horizontal part all is equipped with the insulating layer, the hole of stepping down that runs through around the fixed plate is equipped with, the downthehole of stepping down is equipped with the second probe that sets up towards the back, the bottom plate has the limit structure that is used for restricting perpendicular portion to move backward, and when the conducting block is placed in the fixed plate upside, the horizontal part supports in the fixed plate upside, the vertical part is located the perpendicular portion rear side of standing up the position, and the second probe contacts.
2. The batch test device for voltage resistance and insulation of power devices according to claim 1, wherein the fixing plate or the bottom plate is provided with at least two guide rods extending upwards, the lifting plate is sleeved outside the guide rods, a top plate is arranged between the upper ends of the two guide rods, and the top plate is provided with an adjusting mechanism capable of driving the lifting plate to lift.
3. The batch test device for voltage resistance and insulation of power devices according to claim 1, wherein each of the first probe and the second probe comprises a sleeve portion and a rod portion, one end of the rod portion is provided with a contact end for contacting with a power device to be tested, the other end of the rod portion is provided with a limit protrusion, the width of the limit protrusion is larger than the inner diameter of the sleeve portion, an opening of the sleeve portion adjacent to the contact end is provided with an annular protrusion extending towards the circumferential inner side, a return spring is arranged between the annular protrusion and the limit protrusion, or a return spring is arranged between the annular protrusion and the contact end.
4. The batch test device for withstand voltage and insulation of power devices as claimed in claim 3, wherein the contact end is provided with a plurality of tips arranged in an array, and the tips are the same in shape and size.
5. The batch test device for voltage resistance and insulation of the power device as claimed in claim 1, wherein the transverse portion is provided with a positioning hole for positioning a fastener, the fastener comprises a first fastener part and a second fastener part, when the power device to be tested is fixed with the transverse portion through the fastener, the first fastener part extends into the positioning hole, and the power device is limited between the second fastener part and the conductive block; the insulating layer covers the hole wall of the positioning hole, or the fastener is made of insulating materials, or the transverse part is provided with a fixing hole, an insulating block made of insulating materials is fixed in the fixing hole, and the insulating block is provided with the positioning hole.
6. The batch test device for withstand voltage and insulation of power devices according to claim 1, characterized in that two limiting blocks are oppositely arranged on the fixed plate or the bottom plate, and the distance between the two limiting blocks is gradually increased from the middle parts to the two ends of the limiting blocks; when the conductive block is supported on the fixing plate, the vertical part of the conductive block is positioned between the two limit blocks.
7. The batch test device for the withstand voltage and insulation of the power devices as claimed in claim 1, wherein the bottom plate is provided with a receding groove, the size of the cross section of the receding groove is the same as the size of the outer edge of the cross section of the lower end of the vertical part, and the limiting structure is the wall of the receding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775196.3U CN217879500U (en) | 2021-07-31 | 2021-07-31 | Power device voltage-resistant insulation batch testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121775196.3U CN217879500U (en) | 2021-07-31 | 2021-07-31 | Power device voltage-resistant insulation batch testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217879500U true CN217879500U (en) | 2022-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121775196.3U Active CN217879500U (en) | 2021-07-31 | 2021-07-31 | Power device voltage-resistant insulation batch testing device |
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| CN (1) | CN217879500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117434311A (en) * | 2023-09-28 | 2024-01-23 | 海信家电集团股份有限公司 | Testing device for power device |
| CN117434311B (en) * | 2023-09-28 | 2024-07-12 | 海信家电集团股份有限公司 | Testing device for power device |
-
2021
- 2021-07-31 CN CN202121775196.3U patent/CN217879500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117434311A (en) * | 2023-09-28 | 2024-01-23 | 海信家电集团股份有限公司 | Testing device for power device |
| CN117434311B (en) * | 2023-09-28 | 2024-07-12 | 海信家电集团股份有限公司 | Testing device for power device |
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