CN113156287A - Pneumatic control pressure testing device for electrical test - Google Patents
Pneumatic control pressure testing device for electrical test Download PDFInfo
- Publication number
- CN113156287A CN113156287A CN202110488126.8A CN202110488126A CN113156287A CN 113156287 A CN113156287 A CN 113156287A CN 202110488126 A CN202110488126 A CN 202110488126A CN 113156287 A CN113156287 A CN 113156287A
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- China
- Prior art keywords
- test
- air bag
- copper
- shaped cylinder
- electrical
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- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1281—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of liquids or gases
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- 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
- G01R1/0425—Test clips, e.g. for IC's
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a pneumatic control pressure testing device for an electrical test, which comprises: the air bag is in a sealed cylindrical shape, copper wires are uniformly wound on the side surface of the air bag, copper bolts are mounted on the side surface of the air bag, and the copper bolts are in contact with the copper wires; the beam-shaped cylinder is an insulating cylinder, a key groove is arranged on the beam-shaped cylinder, and two ends of the beam-shaped cylinder are respectively provided with a test end and a lead-in end; the air bag is compressed in the testing end of the beam-shaped cylinder, and the copper bolt is embedded in the key groove; the copper bolt is electrically connected with the test signal transmitting device. The invention designs the traditional wire clamp needing strong clamping equipment into a mode of vertical pressing by adopting air pressure, and reduces the occurrence of a strong friction process to the maximum extent and the damage degree of a coating of a test surface when the wire clamp is contacted with the test surface of a test article by a soft material and an inflation mode of an air bag.
Description
Technical Field
The invention belongs to the technical field of electrical tests, and particularly relates to a pneumatic control pressure testing device for an electrical test.
Background
In the electrical test process, the chuck is required to be in direct contact with a test object so as to conduct electric signals such as current and voltage. The traditional chuck is generally made of silver-plated copper, and in the process of electrical testing, particularly in the process of electrical testing at a high voltage level, because measures such as silver plating and the like are usually adopted on a testing surface of equipment, the process of strong friction between the testing chuck and the testing surface is inevitable, so that a silver film coating of the testing surface of the equipment is damaged, and the conductivity of the equipment is reduced.
Disclosure of Invention
In view of the above-mentioned shortcomings in the prior art, the present invention provides a pneumatic pressure testing device for electrical tests, so as to solve the above-mentioned technical problems.
In a first aspect, the present invention provides a pneumatic pressure testing device for electrical tests, comprising: the air bag is in a sealed cylindrical shape, copper wires are uniformly wound on the side surface of the air bag, copper bolts are mounted on the side surface of the air bag, and the copper bolts are in contact with the copper wires; the beam-shaped cylinder is an insulating cylinder, a key groove is arranged on the beam-shaped cylinder, and two ends of the beam-shaped cylinder are respectively provided with a test end and a lead-in end; the air bag is compressed in the testing end of the beam-shaped cylinder, and the copper bolt is embedded in the key groove; the copper bolt is electrically connected with the test signal transmitting device.
Furthermore, the insulation leading-in rod comprises a straight rod and a disc fixed at the top end of the straight rod, and the disc is in contact with the air bag in the beam-shaped cylinder.
Furthermore, the bottom end of the straight rod is connected with a hydraulic cylinder, and the hydraulic cylinder pushes the insulating leading-in rod to be pushed into or pulled out of the beam-shaped cylinder, so that the device is applied to automatic testing equipment.
Furthermore, a fixing frame is arranged at an inner ring opening of the guide end of the beam-shaped cylinder, the fixing frame comprises a circular ring and a plurality of fixed branches, the circular ring is arranged in the middle of the inner ring opening, the insulating guide rod penetrates through the circular ring, one ends of the fixed branches are fixed on the inner ring opening of the guide end of the beam-shaped cylinder, and the other ends of the fixed branches are fixed on the outer edge of the circular ring to provide a guiding effect for pushing and pulling the insulating guide rod.
Furthermore, the diameter of the inner ring of the circular ring is smaller than that of the circular disc, so that the insulating leading-in rod is prevented from being separated from the beam-shaped cylinder.
Furthermore, set up insulating couple on the disc, insulating couple and copper line fixed connection conveniently carry out the playback with the gasbag that releases.
Furthermore, the air bag is filled with nitrogen with the pressure of 0.4MPa, so that the stability of the air bag is ensured.
Furthermore, the side of the air bag is provided with a screw hole for mounting a copper bolt.
In a second aspect, the present invention provides a pneumatic pressure testing method for electrical tests, including:
and 5, sending the test signal by the test signal sending device, and conducting the test signal to a test surface of the test object by the test device to perform an electrical test.
The beneficial effect of the invention is that,
according to the pneumatic pressure testing device for the electrical test, in the process of carrying out the electrical test, a traditional wire clamp needing strong clamping equipment is designed to be in a mode of vertical pressing and covering by adopting air pressure, and through the soft material and the inflation mode of the air bag, when the wire clamp is in contact with the test surface of a test article, the occurrence of a strong friction process is reduced to the maximum extent, the damage degree of a coating of the test surface is reduced, and the safe and effective performance of the test process of the equipment is ensured; the contact area between the air bag and the test surface is changed by compressing the beam-shaped cylinder, so that the function of adjusting the contact area of the test surface is realized.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of the structure of an apparatus according to an embodiment of the present application;
FIG. 2 is a schematic front view of an airbag of an apparatus according to an embodiment of the present application;
FIG. 3 is a side view of the bladder of the apparatus of one embodiment of the present application;
FIG. 4 is a schematic side view of a beam barrel of an apparatus according to one embodiment of the present application;
FIG. 5 is a schematic diagram of the front side of the insulated lead-in bar of the apparatus of one embodiment of the present application;
FIG. 6 is a schematic side view of an insulating lead-in rod of the apparatus of one embodiment of the present application;
FIG. 7 is a schematic view of the anti-separation guard of the device according to one embodiment of the present application;
FIG. 8 is a schematic diagram of the apparatus of one embodiment of the present application as applied to a test device;
FIG. 9 is a schematic view of the structure of the holder of the device according to one embodiment of the present application;
wherein, 1, an air bag; 2. a beam-shaped cylinder; 3. an insulating lead-in rod; 4. a copper bolt; 5. a keyway; 6. a straight rod; 7. a disc; 8. an anti-drop guard ring; 9. a hydraulic cylinder; 10. a fixing frame.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
As shown in fig. 1, an embodiment of the present application provides a pneumatic pressure testing device for an electrical test, including: the test device comprises an air bag 1, a beam-shaped cylinder 2 and an insulating lead-in rod 3, wherein the air bag 1 is in a sealed cylinder shape as shown in figures 2 and 3, copper wires are uniformly wound on the surface of the air bag 1, a screw hole is formed in the side surface of the air bag 1, a copper bolt 4 is installed in the screw hole, the copper bolt 4 is electrically connected with a test signal sending device, and the copper bolt 4 is in contact with the copper wires; as shown in fig. 4, the beam cylinder 2 is an insulating cylinder, a key slot 5 is arranged on the beam cylinder 2, and two ends of the beam cylinder 2 are respectively provided with a testing end and a guiding end; the air bag 1 is compressed in the testing end of the beam-shaped cylinder 2, and a copper bolt 4 is embedded in the key groove 5; as shown in fig. 5 and 6, the insulation lead-in rod 3 comprises a straight rod 6 and a disc 7 fixed on the top end of the straight rod 6, the insulation lead-in rod 3 is used for pushing the airbag 1, the insulation lead-in rod 3 is placed into the beam-shaped cylinder, the insulation lead-in rod 3 is pushed in from the lead-in end of the beam-shaped cylinder 2, and the straight rod 6 is operated to enable the disc 7 to be in contact with the airbag 1 in the beam-shaped cylinder 2.
In general, nitrogen gas has a small change in gas volume under the influence of temperature, so that the gas bag 1 is filled with nitrogen gas having a pressure of 0.4MPa in this embodiment, thereby ensuring the stability of the entire volume of the gas bag 1.
In this embodiment, set up insulating couple on the disc 7, insulating couple and copper line fixed connection, gasbag 1 also pulls out along with when pulling out insulating leading-in stick 3, and the gasbag 1 that will release returns, conveniently carries out next round of test.
As shown in fig. 7, in the present embodiment, a drop-off prevention guard ring 8 is provided at the inner ring opening of the introduction end of the bundle cylinder 2, and the inner ring diameter of the drop-off prevention guard ring 8 is smaller than the diameter of the disc 7, thereby preventing the insulating introduction rod 3 from being pulled out or ejected by the airbag 1 to be separated from the bundle cylinder 2.
During the use, with the test article just to the testing arrangement setting, the test end of bundling section of thick bamboo 2 is close to the test surface of test article at first, copper bolt 4 inserts the test signal, the current signal is adopted to this embodiment, because bundling section of thick bamboo 2 and insulating leading-in stick 3 all are the insulator, so the test signal can only be conducted through the copper line on gasbag 1 surface, push insulating leading-in stick 3 into bundling section of thick bamboo 2 back contact and extrusion gasbag 1, until the copper line on gasbag 1 surface contacts the test surface of test article, and along with the propulsion of insulating leading-in stick 3, the area of contact of gasbag 1 and test surface increases, the current signal conducts on the test surface, the test mode that utilizes this embodiment to provide has effectively avoided the influence of frictional force in the contact process to the test surface coating film, guarantee that the test article is not destroyed in the test process.
The testing device provided by the embodiment can be used in various scenes of electrical tests, for example, when a worker needs to hold the testing device for testing, the straight rod 6 of the insulating lead-in rod 3 is pushed by hand to enable the disc 7 to be in contact with the air bag 1; for example, when performing an automatic test, the test apparatus may be mounted on a test device, as shown in fig. 8, the bottom end of the straight rod 6 is connected to a hydraulic cylinder 9, and the hydraulic cylinder 9 pushes the insulation guide rod 3 to push or pull the bundled tube 2, so that the test device can perform an automatic test.
Example 2
As shown in fig. 9, the present embodiment provides a pneumatic pressure testing apparatus for electrical experiments, which is different from embodiment 1 in that a fixing frame 10 is disposed at an inner ring opening of a bundle cylinder 2, the fixing frame 10 includes a circular ring disposed in the middle of the inner ring opening and a plurality of fixing branches, an insulating lead-in rod 3 passes through the circular ring, one end of each fixing branch is fixed on the inner ring opening of the bundle cylinder 2, the other end of each fixing branch is fixed on the outer edge of the circular ring, and the fixing frame 10 provides a guiding function for pushing and pulling the insulating lead-in rod 3; and the diameter of the inner ring of the circular ring is smaller than that of the disc, so that the insulating leading-in rod 3 is prevented from being separated from the beam-shaped cylinder 2. The fixing frame 10 provided by the embodiment is more stable than the anti-falling protection ring 8 in the embodiment, and can guide the insulating leading-in rod 3 to be pushed or pulled forward, so that the operation of the testing device is smoother, and the testing efficiency is improved.
Example 3
The embodiment provides a method for testing gas control pressure for an electrical test, and the method adopts the testing device provided by the embodiment 1, and comprises the following steps:
and 5, sending the test signal by the test signal sending device, and conducting the test signal to a test surface of the test object by the test device to perform an electrical test.
This embodiment reduces the frictional force of testing arrangement and test article test surface at carrying out the electrical test in-process, reduces the destruction degree of test article cladding material, guarantees that the test article is effectively gone on at the test process safety.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides an air-operated pressure testing arrangement for electrical test which characterized in that includes: the air bag is in a sealed cylindrical shape, copper wires are uniformly wound on the side surface of the air bag, copper bolts are mounted on the side surface of the air bag, and the copper bolts are in contact with the copper wires; the beam-shaped cylinder is an insulating cylinder, a key groove is formed in the beam-shaped cylinder, and the copper bolt is embedded in the key groove; two ends of the beam-shaped cylinder are respectively provided with a test end and a lead-in end; the air bag is compressed in the testing end of the beam-shaped cylinder, and the copper bolt is embedded in the key groove; the copper bolt is electrically connected with the test signal transmitting device.
2. The pneumatic pressure test device for electrical experiments according to claim 1, wherein the insulation lead-in rod comprises a straight rod and a disc fixed at the top end of the straight rod, and the disc is in contact with the air bag in the beam-shaped cylinder.
3. The pneumatic pressure testing device for electrical experiments as claimed in claim 2, wherein the bottom end of the straight rod is connected with a hydraulic cylinder.
4. The pneumatic pressure test device for electrical tests as set forth in claim 2, wherein a fixing frame is provided at an inner peripheral opening of the introduction end of the bundled tube, the fixing frame including a circular ring provided in the middle of the inner peripheral opening and a plurality of fixing branches, the insulating introduction rod passing through the circular ring, one end of the fixing branch being fixed to the inner peripheral opening of the introduction end of the bundled tube, and the other end of the fixing branch being fixed to an outer peripheral edge of the circular ring.
5. The pneumatic pressure test device for electrical testing of claim 4, wherein the inner diameter of the ring is smaller than the diameter of the disk.
6. The pneumatic pressure testing device for the electrical test as claimed in claim 2, wherein an insulating hook is arranged on the disc, and the insulating hook is fixedly connected with a copper wire.
7. The gas-controlled pressure test apparatus for electrical tests according to claim 1, wherein the air bag is filled with nitrogen gas having a pressure of 0.4 MPa.
8. The pneumatic pressure test device for electrical tests as set forth in claim 1, wherein a side surface of the air bag is provided with a screw hole for mounting a copper bolt.
9. A pneumatic pressure test method for electrical testing, using the test apparatus according to any one of claims 1 to 8, the method comprising:
step 1, setting a test surface of a test article opposite to a test device, wherein the test surface is opposite to a test end of a beam-shaped cylinder;
step 2, pushing an insulating lead-in rod from the lead-in end of the beam-shaped cylinder;
step 3, the insulation leading-in rod contacts and extrudes the air bag, so that the air bag penetrates out of the testing end;
step 4, pushing the insulation lead-in rod until the copper wire on the surface of the air bag contacts the test surface of the test article;
and 5, sending the test signal by the test signal sending device, and conducting the test signal to a test surface of the test object by the test device to perform an electrical test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488126.8A CN113156287B (en) | 2021-05-06 | 2021-05-06 | Pneumatic control pressure testing device for electrical test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110488126.8A CN113156287B (en) | 2021-05-06 | 2021-05-06 | Pneumatic control pressure testing device for electrical test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113156287A true CN113156287A (en) | 2021-07-23 |
| CN113156287B CN113156287B (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110488126.8A Active CN113156287B (en) | 2021-05-06 | 2021-05-06 | Pneumatic control pressure testing device for electrical test |
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| CN (1) | CN113156287B (en) |
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| CN203983031U (en) * | 2014-06-17 | 2014-12-03 | 许日磷 | A kind of winding chuck |
| CN104880464A (en) * | 2015-06-10 | 2015-09-02 | 清华大学 | Vacuum environment imitation experiment system for tribo-luminescence |
| US20170190002A1 (en) * | 2014-08-06 | 2017-07-06 | Kaijo Corporation | Bonding Method and Bonding Device |
| CN106983929A (en) * | 2017-05-19 | 2017-07-28 | 四川北辰乾衡科技有限责任公司 | A kind of muscle recovery cartridge syringe |
| CN206754713U (en) * | 2017-04-17 | 2017-12-15 | 四川宇通管道技术有限责任公司 | A kind of nondestructive inspection film paster elastic support |
| CN208015044U (en) * | 2018-01-26 | 2018-10-26 | 广州世博科机电设备有限公司 | Stretch-proof Kufil contact line |
| CN108747820A (en) * | 2018-06-28 | 2018-11-06 | 莆田市多迪贸易有限公司 | A kind of grinding machine clamping apparatus that loss prevention air pressure rubber ring timber clamps |
| CN112462093A (en) * | 2020-10-12 | 2021-03-09 | 贵州电网有限责任公司 | Device for outdoor testing of resistance of conductive circuit of circuit breaker |
| CN112483578A (en) * | 2020-12-14 | 2021-03-12 | 湖南联诚轨道装备有限公司 | Damper for pantograph |
-
2021
- 2021-05-06 CN CN202110488126.8A patent/CN113156287B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203983031U (en) * | 2014-06-17 | 2014-12-03 | 许日磷 | A kind of winding chuck |
| US20170190002A1 (en) * | 2014-08-06 | 2017-07-06 | Kaijo Corporation | Bonding Method and Bonding Device |
| CN104880464A (en) * | 2015-06-10 | 2015-09-02 | 清华大学 | Vacuum environment imitation experiment system for tribo-luminescence |
| CN206754713U (en) * | 2017-04-17 | 2017-12-15 | 四川宇通管道技术有限责任公司 | A kind of nondestructive inspection film paster elastic support |
| CN106983929A (en) * | 2017-05-19 | 2017-07-28 | 四川北辰乾衡科技有限责任公司 | A kind of muscle recovery cartridge syringe |
| CN208015044U (en) * | 2018-01-26 | 2018-10-26 | 广州世博科机电设备有限公司 | Stretch-proof Kufil contact line |
| CN108747820A (en) * | 2018-06-28 | 2018-11-06 | 莆田市多迪贸易有限公司 | A kind of grinding machine clamping apparatus that loss prevention air pressure rubber ring timber clamps |
| CN112462093A (en) * | 2020-10-12 | 2021-03-09 | 贵州电网有限责任公司 | Device for outdoor testing of resistance of conductive circuit of circuit breaker |
| CN112483578A (en) * | 2020-12-14 | 2021-03-12 | 湖南联诚轨道装备有限公司 | Damper for pantograph |
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| CN113156287B (en) | 2022-10-04 |
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