CN101216517A - Connecting apparatus for equipment pressure resistance test - Google Patents
Connecting apparatus for equipment pressure resistance test Download PDFInfo
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- CN101216517A CN101216517A CNA2007100005081A CN200710000508A CN101216517A CN 101216517 A CN101216517 A CN 101216517A CN A2007100005081 A CNA2007100005081 A CN A2007100005081A CN 200710000508 A CN200710000508 A CN 200710000508A CN 101216517 A CN101216517 A CN 101216517A
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 239000002184 metal Substances 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 51
- 239000004020 conductor Substances 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 24
- 238000010168 coupling process Methods 0.000 claims description 24
- 238000005859 coupling reaction Methods 0.000 claims description 24
- 239000011810 insulating material Substances 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 6
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000007762 Ficus drupacea Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
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- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 229910052710 silicon Inorganic materials 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
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Abstract
The invention discloses a connection device (N) for withstand voltage testing of equipment, which comprises a first component (1) arranged inside the equipment and having a conductor portion (14) electrically connected with power earth (PE) of the internal circuit of the equipment at a first end (141) and extending to a housing (B1) of the equipment at a second end (142); and a second component (2) arranged outside the equipment for electrically connecting the second end (142) of the conductor portion (14) to a metal portion of the equipment housing (B1). The invention can conveniently disconnect the metal housing from the internal circuit of the equipment without opening the equipment housing during withstand voltage testing, and can connect the metal housing with the internal circuit when the test is over, thus facilitating withstand voltage test of the equipment.
Description
Technical field
The present invention relates to a kind of coupling arrangement that is used for equipment pressure resistance test, when electronic equipment carries out the test of safe withstand voltage properties, device interior circuit and device housings can be thrown off influence with eliminating lightning protection circuit etc.
Background technology
Various electronic equipment internal all can have lightning protection circuit usually; be used under abnormal conditions, bringing into play protective effect; such as when high voltage or big electric current are invaded equipment by the mode of conduction and induction; lightning protection circuit is released energy on the metal shell of equipment, thereby avoids device interior to occur damaging and fault.These lightning protection circuits are particularly common and important in outdoor version equipment.
But, such lightning protection circuit but carries out safe voltage-withstand test to equipment makes troubles, because voltage-withstand test utilizes withstand voltage instrument in device external its various interface or shell to be applied high pressure exactly, thereby obtain the insulation resistance of equipment, but this moment is because the existence of lightning protection circuit, to cause high voltage to be released by lightning protection circuit, thereby can't obtain true measurement, whether the withstand voltage properties that finally also can't weigh equipment satisfies safety requires and industry standard.
Method is in the past normally surveyed the lightning protection circuit of off device inside when withstand voltage, reconnects after the end of test (EOT), so just needs dismounting or welding gear internal interface ground wire, and its shortcoming is the reduction that causes whole aircraft reliability.Especially for many outdoor version equipment, airtight watertight requirement is arranged, in case do not allow after assembling to open easily.Therefore, how to realize the easy device of equipment pressure resistance test is just seemed extremely important.
In the design of equipment lightning protection circuit,, reduce its testability if pursue the complexity that the lightning protection reliability just may increase system merely.Otherwise, if pursue the simplification of system separately, do not adopt the lightning protection circuit, can influence its reliability again.Pursuing quick, simple and direct, low cost and testability under the prerequisite of the reliability that guarantees system requirements is the technical matters that this area needs to be resolved hurrily.
Relevant patent or patented claim as this area comprise following document:
A. Chinese patent application number: 200410063396.0, publication number: CN1576868, title: SIC (semiconductor integrated circuit) and electrostatic withstand voltage test method thereof and device.This technology is to carry out power supply drain electrode testing current by the power pin and the another kind of pin in the ground pin that use internal circuit.
B. Chinese patent application number: 92102003.1, publication number: CN1076786, title: multi-functional online and Hi-pot Tester.This technology is load with the inductance, and utilizes application-specific integrated circuit to carry out signal Processing by adopting oscillator, realizes devices such as triode are carried out on-line testing, can improve the accuracy rate of the online withstand voltage Insulation test of controllable silicon, triode etc.
C. Chinese patent application number: 99235203.7, publication number: CN2398641, title: Hi-pot Tester.This tester comprises breakdown current input circuit assembly and holding circuit assembly; wherein breakdown current input circuit assembly comprises a plurality of sampling resistance in seriess, and the holding circuit assembly comprises a plurality of sampling resistance in seriess, two utmost points, transistor, stabilivolt, capacitor and relay.Its objective is and improve measuring accuracy and protect high-tension transformer not to be damaged.
D. Chinese patent application number: 02262426.0, publication number: CN2560953, title: electric capacity voltage-withstand test box.The upper surface of this testing cassete is provided with elongated slot, is used for fixing the test clip of the corresponding and mutually insulated of a pair of and withstand voltage high-voltage output end both positive and negative polarity, and a surface also is provided with gauge tap and test pilot lamp.The normally opened contact of gauge tap is connected with the remote control socket of withstand voltage instrument with detection examination plug far away by lead, and a contact in the normally closed contact links to each other with the series arm that is made of pilot lamp and resistance, and another contact is unsettled.The advantage of this testing cassete is that test operation is simple, insulativity and security are good.
E. China Patent No.: 94236258.6, publication number: CN2217225Y, title: pocket general-purpose Hi-pot Tester.This tester comprises stabilized voltage supply, change-over circuit, testing circuit and high voltage indicator.Wherein testing circuit comprises trigger and is connected the light emitting diode of trigger output terminal, high voltage indicator comprise potentiometer and with the coaxial mounted index dial of potentiometer.The volume of this tester is less and sensing range is wider.
Other close patent documentations also comprise:
Chinese patent application number: 90215553.9, publication number: CN2087786, title: the withstand voltage comprehensive tester of earial drainage; PCT patent application publication number: WO2006074553, title: DIELECTRIC COOLANTS FOR USE IN ELECTRICALEQUIPMENT; PCT patent application publication number: WO2006060269, title: DIELECTRIC FLUIDS AND PROCESSES FOR MAKING SAME; And U.S. Patent Application Publication No.: US2006043996, title: CONSTRUCTIONAND USE OF DIELECTRIC PLATE FOR MATING TESTEQUIPMENT TO A LOAD BOARD OF A CIRCUIT TESTER or the like.
But, in above patent (application), can be easily when the equipment that all is not implemented in carries out voltage-withstand test be connected and disconnection metal shell and internal circuit are simple and easy, device housings can not be accomplished not open and just voltage-withstand test can be carried out.
Summary of the invention
The objective of the invention is to, a kind of coupling arrangement that is used for equipment pressure resistance test is provided, can be easily when equipment carries out voltage-withstand test the metal shell and the internal circuit of equipment be disconnected, and after test finishes, can make it to couple together.
Another object of the present invention is, a kind of coupling arrangement that is used for equipment pressure resistance test is provided, and need not open device housings when equipment is carried out voltage-withstand test.
Another purpose of the present invention is, a kind of coupling arrangement that is used for equipment pressure resistance test is provided, and it can realize that the metal shell of equipment is connected with the simple and easy of internal circuit, can not increase system complexity again, does not influence the testability of system simultaneously again.
For solving above-mentioned technical matters of the prior art and realizing purpose of the present invention, the invention provides a kind of coupling arrangement that is used for equipment pressure resistance test, comprise: first parts, be arranged on described device interior, has conductor portion, first end of described conductor portion is electrically connected safely with the internal circuit of described equipment, and second end extends to the shell of described equipment; And second parts, be arranged on outside the described equipment, second end of described conductor portion is electrically connected to the metal part of described device housings.
Preferably, described first parts also comprise first connecting portion, by described first connecting portion with described internal circuit safely or described safely lead-in wire fixedly be connected electrically in first end of described conductor portion.Wherein, first end of described conductor portion has threaded joints, and described first connecting portion is a nut, by described nut with described internal circuit safely or described safely lead-in wire be crimped on first end of described conductor portion.
Preferably, described first parts also comprise second connecting portion, and described second connecting portion is fixedlyed connected with second end of described conductor portion, and is fixedly mounted on the described device housings.Preferably, described second connecting portion is made by insulating material.Preferably, described second connecting portion is a joint flange, and described joint flange is fixedly mounted on the inside surface of described device housings.Have threaded joints on the described joint flange, and stretch out the respective aperture of described threaded joints from described device housings; Described second parts are threaded on the threaded joints of described joint flange.Preferably, described second parts are metal cap, described metal cap is pressed on the outside surface of described device housings under tight condition, simultaneously second end with the conductor portion of described first parts electrically contacts, described metal cap under releasing orientation with second end of the conductor portion of described device housings and described first parts in throw off one of at least.
Preferably, the conductor portion of described first parts is straight or crooked Metallic rod.Perhaps, the conductor portion of described first parts is metal connecting line or the wire rope that has insulated hull.
The present invention has following beneficial effect:
1. by first parts that are arranged on device interior and second parts that are arranged on device external, can be easily when equipment carries out voltage-withstand test the metal shell and the internal circuit of equipment be disconnected, and after test finishes, can make it to couple together, thereby can realize voltage-withstand test easily.
Since second components outside device housings, by taking off and be connected first parts in the slave unit outside, in the time of can carrying out voltage-withstand test to equipment easily and need not open device housings.
3. according to the present invention, when carrying out equipment pressure resistance test, do not need to resemble and open device housings earlier the prior art, and then off device internal lighting protection circuit, that is to say that the present invention does not influence the original lightning protection circuit of device interior.Therefore, utilize the present invention, reduced the assembly work amount, improved production efficiency.
4. because this device is positioned on the shell, can take off very simply or install, withstand voltage to testing of equipment like this, can carry out at any time, do not need all to open equipment at every turn, also be convenient to simultaneously aborning equipment be carried out batch by the part test.This advantage is especially significant for outdoor version equipment, because all be full-closed structure usually during the test of this kind equipment, can not or not allow to be easy to open.Therefore this device has finally improved the convenience and the real-time that detect.
The purpose that reaches other that the present invention is above-mentioned, feature, aspect and advantage can be from the following detailed descriptions of the present invention and are known and learn in conjunction with the accompanying drawings.
Description of drawings
Accompanying drawing is used to provide further to be understood the present invention, comprises in this manual and constitute the part of this description, and it shows embodiments of the invention and is used from explanation principle of the present invention with instructions one.
In the drawings:
Fig. 1 illustrates the general schematic of conditional electronic device interior ground connection.
Fig. 2 illustrates the synoptic diagram according to electronic equipment internal ground connection of the present invention.Wherein substitute traditional connection flexible cord with coupling arrangement N of the present invention.
Fig. 3 illustrates according to the three-dimensional decomposition texture synoptic diagram of the monnolithic case of coupling arrangement of the present invention.
Syndeton synoptic diagram when Fig. 4 illustrates the use of coupling arrangement shown in Figure 3.
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail.
Referring to Fig. 1, show a kind of internal circuit ground connection synoptic diagram of conditional electronic equipment.Wherein, this internal circuit comprises having live wire L
Go intoWith zero line N
Go into, and comprise signal input line S
Go intoIn addition, also be provided with a plurality of lightning protection circuits (or lightning protection component) A1, A2 in the internal circuit, the Zener diode A3 in the circuit is also as lightning protection component.Has (line) PE safely in the internal circuit.PE is the abbreviation of " power earth ", the meaning of expression power ground line.Three core supply socket: L for power electronic equipment or family are live wires, and N is a zero line, and PE is power supply ground, again because machine casing just connects the earth or public ground usually, so refer to safely or shell ground with PE.PE is connected with a plurality of lightning protection components safely, and by connecting the metal shell ground G of flexible cord M and equipment
ShellConnect.Shell ground G
ShellConnecting equipment metal shell (or metal part of device housings) B1, power supply metal shell B2, and other hardwares B3.
In this traditional electronic equipment, connect flexible cord M usually and be connected with device housings B1 at the PE safely of device interior with the internal circuit of equipment.Because the internal circuit of the equipment that assembles is connected to metal shell, thus when equipment is carried out voltage-withstand test, for avoiding the influence of the lightning protection circuit (or lightning protection component) in the internal circuit, need be with internal circuit and shell ground G
ShellDisconnect.Need to open device housings for this reason.
As shown in Figure 2, adopted the inside that substitutes in the conventional art according to coupling arrangement N of the present invention to connect flexible cord M.Fig. 3 shows according to the three-dimensional decomposition texture synoptic diagram of the monnolithic case of this coupling arrangement N of the present invention.
Coupling arrangement N of the present invention comprises two independent parts: as the pedestal 1 of first parts with as the metal cap 2 of second parts.
Wherein, pedestal 1 comprises: connector 12, and as first connecting portion, base top 16, as second connecting portion, and connecting link 14.
Syndeton synoptic diagram when Fig. 4 illustrates the use of coupling arrangement shown in Figure 3.Wherein, pedestal 1 is arranged on device interior, and its connecting link 14 is a conductor, and first end 141 of connecting link 14 is electrically connected with the PE safely of the internal circuit of equipment, and second end 142 extends to equipment metal shell B1.Metal cap 2 is arranged on outside the equipment, and second end 142 of connecting link 14 is electrically connected to equipment metal shell B1.Selectively, if device housings is not all-metal, then be connected on the metal part of device housings.
Under the normal condition, metal cap 2 is pressed under tight condition on the outside surface of device housings B1, and the upper end 141 of while with the metal connecting link 14 of pedestal 1 electrically contacts.In the time will carrying out voltage-withstand test, rotating metallic cap 2 makes it to be in releasing orientation, metal cap 2 separation instrumentation metal shell B1 then, like this, when carrying out voltage-withstand test, since internal circuit can not be by lightning protection circuit with high voltage from PE releases the equipment metal shell safely, thereby can prevent the influence of lightning protection circuit, thereby can test easily.Selectively, when unscrewing metal cap 2, can be metal cap 2 to be thrown off with the upper end 142 of metal connecting link 14 be connected, perhaps metal cap 2 is connected with upper end 142 disengagements of equipment metal shell B1 and metal connecting link 14 simultaneously.
In the present embodiment, metal connecting link 14 is a straight-bar.Selectively, for adapting to the layout of device interior circuit or components and parts, also can be crooked Metallic rod.Selectively, connecting link 14 also can replace with the metal connecting line or have the wire rope of insulated hull, and its lower end (first end) links to each other with PE line (safely) crimping or stubborn the connecing of device interior.
Utilize device of the present invention, after being screwed in metal cap 2 on the pedestal 1, make that whole electrically conductings (are guaranteed performance, need all adopt copper product between device interior circuit, pedestal 1, metal cap 2 and the device housings, contact resistance is as far as possible little), the lightning protection circuit proper function; After pulling down metal cap 2, pedestal 1 just and device housings disconnected on electric, like this, also just metal parts is electric has disconnected with device housings etc. for lightning protection circuit, thereby makes lightning protection circuit ineffective.Like this, when test, can screw on or back out metal cap 2 as required and realize conveniently carrying out of voltage-withstand test.
Coupling arrangement of the present invention is fixedly mounted on the device housings, can take off very simply or install, and is withstand voltage to testing of equipment like this, can carry out at any time, do not need all to open equipment at every turn.This advantage is especially significant for outdoor version equipment, because all be full-closed structure usually during the test of this kind equipment, can not or not allow to be easy to open.Therefore this device has finally improved the convenience and the real-time that detect.
In sum, the used device of the present invention has simple in structure, uses flexibly, and characteristics such as reliability height are to realize that electronic equipment carries out a kind of effective solution of voltage-withstand test.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. coupling arrangement (N) that is used for equipment pressure resistance test comprising:
First parts (1) are arranged on described device interior, have conductor portion (14), and first end (141) of described conductor portion (14) is electrically connected with (PE) safely of the internal circuit of described equipment, and second end (142) extends to the shell (B1) of described equipment;
Second parts (2) are arranged on outside the described equipment, second end (142) of described conductor portion (14) are electrically connected to the metal part of described device housings (B 1).
2. coupling arrangement according to claim 1 (N), it is characterized in that, described first parts (1) also comprise first connecting portion (12), the lead-in wire of (PE) safely or described (PE) safely of described internal circuit fixedly are connected electrically in first end (141) of described conductor portion (14) by described first connecting portion (12).
3. coupling arrangement according to claim 2 (N), it is characterized in that, first end of described conductor portion (14) has threaded joints, described first connecting portion (12) is a nut, first end (141) that (PE) safely or the described lead-in wire of (PE) safely of described internal circuit is crimped on described conductor portion (14) by described nut.
4. coupling arrangement according to claim 1 (N), it is characterized in that, described first parts (1) also comprise second connecting portion (16), and described second connecting portion (16) is fixedlyed connected with second end of described conductor portion (14), and is fixedly mounted on the described device housings (B1).
5. coupling arrangement according to claim 4 (N) is characterized in that, described second connecting portion (16) is made by insulating material.
6. coupling arrangement according to claim 5 (N) is characterized in that, described second connecting portion (16) is joint flange (16), and described joint flange (16) is fixedly mounted on the inside surface of described device housings (B1).
7. coupling arrangement according to claim 6 (N) is characterized in that, has threaded joints (161) on the described joint flange (16), and stretches out the respective aperture of described threaded joints (161) from described device housings (B1); Described second parts (2) are threaded on the threaded joints (161) of described joint flange (16).
8. coupling arrangement according to claim 7 (N), it is characterized in that, described second parts (2) are metal cap (2), described metal cap (2) is pressed on the outside surface of described device housings (B1) under tight condition, simultaneously second end (141) with the conductor portion (14) of described first parts (1) electrically contacts, described metal cap (2) under releasing orientation with second end (141) of the conductor portion (14) of described device housings (B1) and described first parts (1) in one of at least disengagement.
9. coupling arrangement according to claim 1 (N) is characterized in that, the conductor portion (14) of described first parts (1) is straight or crooked Metallic rod.
10. coupling arrangement according to claim 1 (N) is characterized in that, the conductor portion (14) of described first parts (1) is metal connecting line or the wire rope that has insulated hull.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100005081A CN101216517B (en) | 2007-01-05 | 2007-01-05 | Connecting apparatus for equipment pressure resistance test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100005081A CN101216517B (en) | 2007-01-05 | 2007-01-05 | Connecting apparatus for equipment pressure resistance test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101216517A true CN101216517A (en) | 2008-07-09 |
| CN101216517B CN101216517B (en) | 2011-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100005081A Expired - Fee Related CN101216517B (en) | 2007-01-05 | 2007-01-05 | Connecting apparatus for equipment pressure resistance test |
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| Country | Link |
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| CN (1) | CN101216517B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185302A (en) * | 2011-05-05 | 2011-09-14 | 聚信科技有限公司 | Built-in LPS (lightning protection system) |
| CN105116173A (en) * | 2015-06-30 | 2015-12-02 | 柏宜照明（上海）股份有限公司 | Anti-lightning device grounding wire external connection device of street lamp power supply |
| CN105182011A (en) * | 2015-07-20 | 2015-12-23 | 柏宜照明（上海）股份有限公司 | Dielectric voltage withstand test-used grounding wire device of street lamp power source with built-in lightning protection device |
| CN109521228A (en) * | 2017-09-18 | 2019-03-26 | 中车株洲电力机车研究所有限公司 | A kind of electrical fitting and chassis components for power panel |
| CN113054907A (en) * | 2021-03-12 | 2021-06-29 | 常州市和普电子科技有限公司 | Photovoltaic module voltage withstanding test method with contact anomaly detection function |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2271715Y (en) * | 1995-04-13 | 1997-12-31 | 许进发 | Testing device for main lead polarity, flow and high-voltage holding |
| KR100207994B1 (en) * | 1997-06-17 | 1999-07-15 | 윤종용 | Withstanding voltage inspection apparatus and automatic inspection method |
-
2007
- 2007-01-05 CN CN2007100005081A patent/CN101216517B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185302A (en) * | 2011-05-05 | 2011-09-14 | 聚信科技有限公司 | Built-in LPS (lightning protection system) |
| CN102185302B (en) * | 2011-05-05 | 2013-10-09 | 华为机器有限公司 | Built-in LPS (lightning protection system) |
| CN105116173A (en) * | 2015-06-30 | 2015-12-02 | 柏宜照明（上海）股份有限公司 | Anti-lightning device grounding wire external connection device of street lamp power supply |
| CN105182011A (en) * | 2015-07-20 | 2015-12-23 | 柏宜照明（上海）股份有限公司 | Dielectric voltage withstand test-used grounding wire device of street lamp power source with built-in lightning protection device |
| CN109521228A (en) * | 2017-09-18 | 2019-03-26 | 中车株洲电力机车研究所有限公司 | A kind of electrical fitting and chassis components for power panel |
| CN113054907A (en) * | 2021-03-12 | 2021-06-29 | 常州市和普电子科技有限公司 | Photovoltaic module voltage withstanding test method with contact anomaly detection function |
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| Publication number | Publication date |
|---|---|
| CN101216517B (en) | 2011-06-22 |
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Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: ZTE CORPORATION Effective date: 20141201 Owner name: KAIFENG POWER SUPPLY COMPANY STATE GRID HENAN ELE Effective date: 20141201 |
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Effective date of registration: 20141201 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: KAIFENG POWER SUPPLY COMPANY, STATE GRID HENAN ELECTRIC POWER CO., LTD. Patentee after: WEISHI COUNTY POWER SUPPLY BUREAU Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong high tech Industrial Park, ZTE building Patentee before: ZTE Corporation |
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Granted publication date: 20110622 Termination date: 20170105 |