CN113655379B - Device for measuring voltage drop of high-voltage direct-current contactor - Google Patents
Device for measuring voltage drop of high-voltage direct-current contactor Download PDFInfo
- Publication number
- CN113655379B CN113655379B CN202110960062.7A CN202110960062A CN113655379B CN 113655379 B CN113655379 B CN 113655379B CN 202110960062 A CN202110960062 A CN 202110960062A CN 113655379 B CN113655379 B CN 113655379B
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- current contactor
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- 230000013011 mating Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007747 plating Methods 0.000 abstract description 2
- 229910052709 silver Inorganic materials 0.000 abstract description 2
- 239000004332 silver Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The invention discloses a device for measuring voltage drop of a high-voltage direct-current contactor, which comprises a base (17) and is characterized in that: the base (17) one side is equipped with switching mechanism, and base (17) opposite side is equipped with pushing mechanism, rotation axis and cam mechanism, switching mechanism includes adapter (7), and adapter (7) pass locating piece (8) and are connected with first nut (4), first gasket (5) and reposition of redundant personnel piece (6), and locating piece (8) are connected with fixed block (1) through first screw (2), are equipped with first spring (3) between locating piece (8) and fixed block (1), and first spring (3) are connected with locating piece (8). The invention avoids damage to the threaded hole and the appearance silver plating surface of the binding post of the product during testing, and improves the testing efficiency.
Description
Technical Field
The invention relates to the technical field of pressure drop of contactors, in particular to a device for measuring pressure drop of a high-voltage direct-current contactor.
Background
In the contactor, a voltage drop test is often required to be carried out on a product, as shown in fig. 1 and 2, the product is a high-voltage direct-current contactor, the test principle is that a 28Vd.c. load and a 200A load are input between 2 large binding posts (42), the load is switched by adding a 28Vd.c. pulse power supply between 4 small binding posts 43, the product is suspended after being loaded and operated for three times, a loop is formed between a movable contact 44 in the product and the 2 large binding posts 42 (fig. 2), and a voltage between the 2 large binding posts (42) is measured by using an electric pen of a universal meter, so that whether the voltage drop value between the two binding posts 42 is within the range of product design (less than or equal to 40 mV) is checked.
The traditional testing method comprises the following steps: in the test, the adapter wire 22 is adopted for connecting 2 large binding posts 42, and the common power wire with clamps is adopted for connecting the other 4 binding posts 43; the 2 large binding posts 42 are connected to the switching and moving ends of the device via the patch cords 22, respectively, and the 4 small binding posts 43 are connected to the utility power end of the device via a common power cord. When the method is used for testing, although the tested data result is accurate, the following problems occur: ① When 2 large binding posts 42 are connected, the binding posts 42 are locked by locking screws through copper plate through holes of the adapter wire 22, and during the locking process, if the locking is not operated properly, the silver plating surface of the threaded holes of the binding posts 42 is easy to be twisted; ② Because the two ends of the patch cord 22 are copper plates and the surfaces are uneven, when the screw is screwed, torque is generated and the patch cord is in rigid contact, embossing and scratching are easily generated on the end surface of the patch cord 22, and the appearance of a product is influenced; ③ During testing, the screw needs to be locked and loosened circularly, the testing speed is low, and the production is not facilitated.
Disclosure of Invention
The invention aims to provide a device for pressure drop of a high-voltage direct-current contactor, which uses an adapter to replace a structure of locking and connecting an adapter wire with a binding post, so that damage to a threaded hole and an appearance silver-plated surface of the binding post of a product during testing is avoided, and meanwhile, the testing efficiency is improved.
The invention adopts the following technical scheme to realize the aim of the invention:
The utility model provides a device for high voltage direct current contactor pressure drop measurement, includes the base, base one side is equipped with switching mechanism, and the base opposite side is equipped with pushing mechanism, rotation axis and cam mechanism, switching mechanism includes the adapter, and the adapter passes the locating piece and is connected with first nut, first gasket and reposition of redundant personnel piece, and the locating piece passes through first screw and is connected with the fixed block, is equipped with first spring between locating piece and fixed block, first spring and locating piece connection.
In the device for measuring the voltage drop of the high-voltage direct-current contactor, the first connecting section of the adapter penetrates into the second through hole of the flow dividing sheet, and then the first gasket is locked through the first nut, so that the adapter and the flow dividing sheet are connected with each other; a second connecting section of the adapter presses the first matching hole of the human positioning block to form clearance fit; the first springs are arranged in the first positioning holes of the fixed blocks, 4 first screws penetrate through the first through holes of the fixed blocks and are screwed into the first threaded holes of the positioning blocks, and locking connection between the fixed blocks and the positioning blocks is achieved.
According to the device for measuring the voltage drop of the high-voltage direct-current contactor, the shunt sheet and the patch cord are in locking connection through the two second gaskets, the second screws and the second nuts.
According to the device for measuring the voltage drop of the high-voltage direct-current contactor, the switching mechanism passes through the third through hole of the positioning block through two first screws and is screwed into the fourth threaded hole of the base, so that the switching mechanism is connected with the base.
The device for measuring the pressure drop of the high-voltage direct-current contactor comprises the pushing mechanism, wherein the pushing mechanism comprises a soft pressing block which is locked on the A surface of the guide block through a first countersunk head screw; and a third connecting section of the guide block vertically presses the square cavity of the supporting block to form clearance fit of 0.02-0.04mm, two second springs are placed into second positioning holes of the supporting block, then two first countersunk screws are used for locking the stop block on the B surface of the supporting block, and the thrust mechanism passes through a fourth through hole of the base through the two first screws and is screwed into second screw holes of the supporting block to realize fastening connection.
The device for measuring the voltage drop of the high-voltage direct-current contactor comprises a cam and a rocker, wherein a sixth connecting section of the rocker is screwed into a third threaded hole of the cam; the second matching hole of the cam and the fourth connecting section of the rotating shaft form clearance fit of 0.02-0.03 mm.
The device for measuring the voltage drop of the high-voltage direct-current contactor comprises a rotating shaft, a first connecting section and a second connecting section; the fifth connecting section is vertically pressed into the third matching hole of the base, and the fourth connecting section is inserted into the second matching hole of the cam.
According to the device for measuring the voltage drop of the high-voltage direct-current contactor, the fourth threaded hole is formed in one side of the base, the third matching hole is formed in the other side of the base, and the fourth through hole is further formed in the base.
Compared with the prior art, the invention has the following beneficial effects:
The invention provides a novel pressure drop device of a high-voltage direct-current contactor, which replaces a screw locking structure in the prior art, and by changing the connection mode between an adapter wire and a product binding post and ensuring that enough contact pressure is obtained between the adapter and the binding post, the damage to a threaded hole and an appearance silver-plated surface of the product binding post during testing is avoided, meanwhile, the testing efficiency is improved, the time for each product in the original testing method is about 2 min/min, and the time for each product in the existing testing method is about 43 s/min. Compared with the existing test mode, the test efficiency of the invention is improved by about 64%.
Drawings
FIG. 1 is a schematic diagram of the structure of a test product of the present invention;
FIG. 2 is a cross-sectional view of a test product of the present invention;
FIG. 3 is a schematic diagram of the test of the present invention;
FIG. 4 is an exploded view of the switching mechanism of the present invention;
FIG. 5 is an exploded view of the pushing mechanism of the present invention;
FIG. 6 is an exploded view of the pressure drop apparatus of the present invention;
FIG. 7 is a front view of a fixed block of the present invention;
FIG. 8 is a top view of a mounting block of the present invention;
FIG. 9 is a schematic view of a first gasket of the present invention;
FIG. 10 is a schematic view of a diverter blade according to the present invention;
FIG. 11 is a schematic view of an adaptor according to the present invention;
FIG. 12 is a schematic view of a positioning block according to the present invention;
FIG. 13 is a schematic view of the structure of the soft compact of the present invention;
FIG. 14 is a front view of a support block of the present invention;
FIG. 15 is a top view of a support block of the present invention;
FIG. 16 is a front view of a guide block of the present invention;
FIG. 17 is a top view of a guide block of the present invention;
FIG. 18 is a schematic view of a stopper according to the present invention;
FIG. 19 is a schematic view of a rotating shaft structure according to the present invention;
FIG. 20 is a schematic view of a cam structure of the present invention;
FIG. 21 is a schematic view of a rocker structure of the present invention;
FIG. 22 is a front view of the base of the present invention;
FIG. 23 is a left side view of the base of the present invention;
FIG. 24 is a schematic view of a second gasket construction of the present invention;
In the figure: 1-fixed block, 2-first screw, 3-first spring, 4-first nut, 5-first washer, 6-split, 7-adapter, 8-locating block, 9-soft block, 10-first countersunk screw, 11-supporting block, 12-guiding block, 13-stopper, 14-rotating shaft, 15-cam, 16-rocker, 17-base, 18-second spring, 19-second washer, 20-second screw, 21-second nut, 22-patch cord, 23-first locating hole, 24-first via hole, 25-second via hole, 26-first connecting section, 27-second connecting section, 28-first mating hole, 29-third via hole, 30-first threaded hole, 31-square cavity, 32-second locating hole, 33-second threaded hole, 34-third connecting section, 35-fourth connecting section, 36-fifth connecting section, 37-third threaded hole, 38-second mating hole, 39-sixth connecting section, 40-fourth mating hole, 40-fourth threaded hole, 41-fourth mating hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Examples. The utility model provides a device for high voltage direct current contactor pressure drop measurement, includes base 17, base 17 one side is equipped with switching mechanism, and base 17 opposite side is equipped with pushing mechanism, rotation axis and cam mechanism, switching mechanism includes adapter 7, and adapter 7 passes locating piece 8 and is connected with first nut 4, first gasket 5 and reposition of redundant personnel piece 6, and locating piece 8 is connected with fixed block 1 through first screw 2, is equipped with first spring 3 between locating piece 8 and fixed block 1, and first spring 3 is connected with locating piece 8.
The fixed block 1 comprises a first positioning hole 23 and a first through hole 24;
A shunt sheet 6 including a second via 25;
the adapter 7 comprises a first connecting section 26 and a second connecting section 27;
the positioning block 8 comprises a first matching hole 28, a third through hole 29 and a first threaded hole 30.
The first connecting section 26 of the adapter 7 penetrates into the second through hole 25 of the splitter blade 6, and then the first gasket 5 is locked by the first nut 4, so that the adapter 7 and the splitter blade 6 are connected with each other; the second connecting section 27 of the adapter 7 is pressed into the first matching hole 28 of the positioning block 8 to form clearance fit; the first spring 3 is arranged in the first positioning hole 23 of the fixed block 1, 4 first screws 2 penetrate through the first through holes 24 of the fixed block 1 and are screwed into the first threaded holes 30 of the positioning block 8, so that the fixed block 1 and the positioning block 8 are in locking connection.
The shunt piece 6 and the patch cord 22 are in locking connection through two second gaskets 19, a second screw 20 and a second nut 21.
The adapter is connected to the base 17 by two first screws 2 passing through the third through holes 29 of the positioning block 8 and screwing into the fourth threaded holes 40 of the base 17.
The pushing mechanism comprises a soft pressing block 9, and the soft pressing block 9 is locked on the A surface of the guide block 12 through a first countersunk head screw 10; the third connecting section 34 of the guide block 12 vertically presses the square cavity 31 of the human support block 11 to form clearance fit of 0.02-0.04mm, two second springs 18 are placed into the second positioning holes 32 of the support block 11, then two first countersunk screws 10 are used for locking the stop block 13 on the B surface of the support block 11, and the thrust mechanism passes through the fourth through holes 42 of the base 17 through the two first screws 2 and is screwed into the second screw holes 33 of the support block 11 to realize fastening connection.
Wherein: the support block 11 comprises a square cavity 31, a second positioning hole 32 and a second threaded hole 33;
The guide block 12 includes a third connecting section 34.
The cam mechanism comprises a cam 15 and a rocker 16, wherein a sixth connecting section 39 of the rocker 16 is screwed into a third threaded hole 37 of the cam 15; the second mating hole 38 of the cam 15 forms a clearance fit of 0.02-0.03mm with the fourth connecting section 35 of the rotary shaft 14.
The rotating shaft 14 comprises a fourth connecting section 35 and a fifth connecting section 36; the fifth connecting section 36 is vertically pressed into the third mating hole 41 of the base 17, and the fourth connecting section 35 is inserted into the second mating hole 38 of the cam 15.
A fourth threaded hole 40 is formed in one side of the base 17, a third mating hole 41 is formed in the other side of the base 17, and a fourth through hole 42 is further formed in the base 17.
When in use, the two patch cords 22 are respectively connected to the movable end and the conversion end of the testing equipment, and the four small binding posts 44 of the product are clamped by 4 common power cords with clamps and are connected to the public power supply of the equipment to be connected with the 4 small binding posts in the same way as the wiring mode of the traditional method testing; secondly, placing the product on the device, ensuring that two binding posts 42 of the product are in contact with an adapter 7 of an adapter mechanism, at the moment, the binding posts 42 and the adapter 7 are free from contact pressure, then rotating a cam mechanism, further promoting a pushing mechanism to move linearly and pushing the product to move, further pushing the adapter 7 to retreat and compressing a first spring 3, enabling enough contact pressure between the binding posts 42 of the product and the adapter 7 to be formed, avoiding poor contact, at the moment, leading in a load of 28Vd.c.,200A, suspending after the product is turned on three times, measuring voltage between the two binding posts 42 by using an electric pen of a universal meter, and completing pressure measurement and drop operation of one product.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. A device for measuring the voltage drop of a high-voltage direct-current contactor, comprising a base (17), characterized in that: one side of the base (17) is provided with a switching mechanism, the other side of the base (17) is provided with a pushing mechanism, a rotating shaft and a cam mechanism, the switching mechanism comprises a switching joint (7), the switching joint (7) penetrates through a positioning block (8) and is connected with a first nut (4), a first gasket (5) and a flow dividing piece (6), the positioning block (8) is connected with a fixed block (1) through a first screw (2), a first spring (3) is arranged between the positioning block (8) and the fixed block (1), and the first spring (3) is connected with the positioning block (8); the first connecting section (26) of the adapter (7) penetrates into the second through hole (25) of the splitter blade (6), and then the first gasket (5) is locked through the first nut (4) to realize the interconnection of the adapter (7) and the splitter blade (6); the second connecting section (27) of the adapter (7) is pressed into the first matching hole (28) of the human positioning block (8) to form clearance fit; the first spring (3) is arranged in a first positioning hole (23) of the fixed block (1), 4 first screws (2) penetrate through a first through hole (24) of the fixed block (1) and are screwed into a first threaded hole (30) of the positioning block (8), so that locking connection between the fixed block (1) and the positioning block (8) is realized; the shunt sheet (6) is in locking connection with the patch cord (22) through two second gaskets (19), a second screw (20) and a second nut (21); the cam mechanism comprises a cam (15) and a rocker (16).
2. The apparatus for measuring voltage drop of a high voltage direct current contactor according to claim 1, wherein: the switching mechanism passes through a third through hole (29) of the positioning block (8) through two first screws (2) and is screwed into a fourth threaded hole (40) of the base (17) to realize the connection of the switching mechanism and the base (17).
3. The apparatus for measuring voltage drop of a high voltage direct current contactor according to claim 1, wherein: the pushing mechanism comprises a soft pressing block (9), and the soft pressing block (9) is locked on the surface A of the guide block (12) through a first countersunk head screw (10); a third connecting section (34) of the guide block (12) vertically presses a Fang Xingqiang (31) of the supporting block (11) to form clearance fit of 0.02-0.04mm, two second springs (18) are placed into second positioning holes (32) of the supporting block (11), then two first countersunk screws (10) are used for locking a stop block (13) on the B surface of the supporting block (11), and the pushing mechanism penetrates through a fourth through hole (42) of the base (17) through two first screws (2) and is screwed into second screw holes (33) of the supporting block (11) to realize fastening connection.
4. The apparatus for measuring voltage drop of a high voltage direct current contactor according to claim 1, wherein: the sixth connecting section (39) of the rocker (16) is screwed into the third threaded hole (37) of the cam (15); the second mating hole (38) of the cam (15) forms a clearance fit of 0.02-0.03mm with the fourth connecting section (35) of the rotating shaft (14).
5. The apparatus for measuring voltage drop of a high voltage direct current contactor according to claim 4, wherein: the rotating shaft (14) comprises a fourth connecting section (35) and a fifth connecting section (36); the fifth connecting section (36) is vertically pressed into a third matching hole (41) of the base (17), and the fourth connecting section (35) is inserted into a second matching hole (38) of the cam (15).
6. The apparatus for measuring voltage drop of a high voltage direct current contactor according to claim 5, wherein: a fourth threaded hole (40) is formed in one side of the base (17), a third matching hole (41) is formed in the other side of the base (17), and a fourth through hole (42) is further formed in the base (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960062.7A CN113655379B (en) | 2021-08-20 | 2021-08-20 | Device for measuring voltage drop of high-voltage direct-current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110960062.7A CN113655379B (en) | 2021-08-20 | 2021-08-20 | Device for measuring voltage drop of high-voltage direct-current contactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113655379A CN113655379A (en) | 2021-11-16 |
| CN113655379B true CN113655379B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110960062.7A Active CN113655379B (en) | 2021-08-20 | 2021-08-20 | Device for measuring voltage drop of high-voltage direct-current contactor |
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| CN (1) | CN113655379B (en) |
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|---|---|---|---|---|
| US6045370A (en) * | 1997-10-02 | 2000-04-04 | Wells-Cti, Inc. | Test socket for electronic module |
| CN105424986A (en) * | 2015-11-24 | 2016-03-23 | 国网福建省电力有限公司 | Auxiliary apparatus for high-voltage testing of 10-kV vacuum circuit breaker |
| CN205719529U (en) * | 2016-06-28 | 2016-11-23 | 苏州子波电子科技有限公司 | A kind of electronic component pressure tester |
| CN109324286A (en) * | 2018-09-29 | 2019-02-12 | 国家电网有限公司 | Intelligent multifunction switching device for mechanical characteristic of high-voltage circuit breaker test |
| CN209239239U (en) * | 2018-12-04 | 2019-08-13 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of welder of ceramics seating portion |
| CN210323131U (en) * | 2019-07-22 | 2020-04-14 | 旭格威科技（上海）有限公司 | Direct current contactor fatigue detection auxiliary device |
| CN210863948U (en) * | 2019-07-24 | 2020-06-26 | 北京振兴计量测试研究所 | Hybrid integrated circuit detects anchor clamps |
| CN210894427U (en) * | 2019-09-04 | 2020-06-30 | 深圳市光彩凯宜电子开发有限公司 | Quick test fixture for deconcentrators |
-
2021
- 2021-08-20 CN CN202110960062.7A patent/CN113655379B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6045370A (en) * | 1997-10-02 | 2000-04-04 | Wells-Cti, Inc. | Test socket for electronic module |
| CN105424986A (en) * | 2015-11-24 | 2016-03-23 | 国网福建省电力有限公司 | Auxiliary apparatus for high-voltage testing of 10-kV vacuum circuit breaker |
| CN205719529U (en) * | 2016-06-28 | 2016-11-23 | 苏州子波电子科技有限公司 | A kind of electronic component pressure tester |
| CN109324286A (en) * | 2018-09-29 | 2019-02-12 | 国家电网有限公司 | Intelligent multifunction switching device for mechanical characteristic of high-voltage circuit breaker test |
| CN209239239U (en) * | 2018-12-04 | 2019-08-13 | 贵州振华群英电器有限公司（国营第八九一厂） | A kind of welder of ceramics seating portion |
| CN210323131U (en) * | 2019-07-22 | 2020-04-14 | 旭格威科技（上海）有限公司 | Direct current contactor fatigue detection auxiliary device |
| CN210863948U (en) * | 2019-07-24 | 2020-06-26 | 北京振兴计量测试研究所 | Hybrid integrated circuit detects anchor clamps |
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| CN113655379A (en) | 2021-11-16 |
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