CN203838177U - Electrical test fixture - Google Patents
Electrical test fixture Download PDFInfo
- Publication number
- CN203838177U CN203838177U CN201420165833.9U CN201420165833U CN203838177U CN 203838177 U CN203838177 U CN 203838177U CN 201420165833 U CN201420165833 U CN 201420165833U CN 203838177 U CN203838177 U CN 203838177U
- Authority
- CN
- China
- Prior art keywords
- upper cover
- circuit board
- test fixture
- electric test
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to an electrical test fixture comprising an upper cover, a lower cover, a circuit board, a locating block, a connector and a wire pressing mechanism. The upper cover and the lower cover are fixed together. The circuit board is accommodated into the lower cover. The front end of the circuit board is provided with a plurality of metal sheets, and the rear end of the circuit board is provided with the connector. The connector is in electrical connection with the metal sheets. The connector is provided with an exposed insertion and connection port. The locating block is fixed on the circuit board. The locating block is provided with a plurality of jubes. A locating slot running through the locating block is formed between every two adjacent jubes. The metal sheets are exposed in the locating slots. The wire pressing mechanism is pivoted onto the upper cover and can be rotated up and down. The wire pressing mechanism is provided with a plurality of press-against portions corresponding to the locating slots. The press-against portions can be extended into the locating slots downwards and then pressed against the wires of cables so as to ensure the reliable contact between the wires and the metal sheets. The electrical test fixture of the utility model has advantages of smart design, simple structure, and easy and convenient operation.
Description
Technical field
The utility model relates to a kind of electric test fixture, relates in particular to a kind of for testing the electric test fixture of cable electric property.
Background technology
More and more faster along with data transmission, the performance of transmission cable also needs corresponding raising, the high frequency performance of cable, as impedance, decay, the parameters such as return loss need to be protected, the relevant common Adoption Network analyser of manufacturer or time-domain reflectomer are in conjunction with electric test fixture, the high frequency performance of test cable, electric test fixture connected network analyser or time-domain reflectomer and the cable that need to test, existing electric test clamp structure design is unreasonable, complicated operation, can not firmly clamp cable, cable is easily loosening, general test signal line, and do not test ground wire, signal is imperfect, maintenance difficult.
So, be necessary to design a kind of new electric test fixture to solve the problems of the technologies described above.
Utility model content
The purpose of this utility model has been to provide a kind of ingenious and processing ease, easy electric test fixture of designing.
For realizing aforementioned object, the utility model adopts following technical scheme: a kind of electric test fixture, it comprises upper cover, lower cover, circuit board, locating piece, connector and thread depressing mechanism, on described, lower cover is fixed with each other, described circuit board is contained in, in lower cover, described circuit board front end is placed with some sheet metals, rear end is provided with connector, described connector and sheet metal are electrically connected, described connector has and is exposed to outside interface, described locating piece is fixed on circuit board, locating piece is provided with some jubes, between every adjacent two jubes, be formed with the locating slot that runs through up and down locating piece, described sheet metal is exposed in locating slot, described thread depressing mechanism is articulated in and covers and can rotate up and down, described thread depressing mechanism is provided with the some pressure sections corresponding with locating slot, described pressure section can enter downwards on the wire that is pressed on cable after locating slot to guarantee that wire reliably contacts with sheet metal.
As further improvement of the utility model, described sheet metal is set to four, comprises a pair of differential signal sheet metal and two grounded metal sheet.
As further improvement of the utility model, described circuit board surface is provided with some cablings of connection metal sheet and connector, and described locating piece bottom surface is provided with the depression that is positioned at locating slot rear, and described cabling is exposed in depression to avoid locating piece to compress cabling.
As further improvement of the utility model, described circuit board is clamped between upper and lower cover, described upper cover bottom surface is provided with groove, be positioned at the protuberance of groove and be positioned at the chimb of the groove left and right sides, protuberance and chimb are pressed on respectively on circuit board, and the cabling on circuit board is exposed in groove to stop upper cover to compress cabling.
As further improvement of the utility model, the accepting groove that described upper cover front end is provided with a breach and extends to the inside from breach, breach runs through upper cover up and down, accepting groove upwards runs through upper cover, do not run through upper cover downwards and be provided with a diapire, described upper cover has the circular hole that upper cover is run through in left and right, and circular hole is through accepting groove, and a rotating shaft is articulated in thread depressing mechanism to cover through circular hole.
As further improvement of the utility model, described thread depressing mechanism comprises main body and is fixed on the first press block of bottom part body, and described pressure section is located on the first press block, and described the first press block can enter in breach downwards and upwards exit breach.
As further improvement of the utility model, described thread depressing mechanism comprises the second press block that is fixed on bottom part body, and described the second press block is positioned at the place ahead of the first press block and upper cover, and described the second press block can clamp cable jointly with lower cover.
As further improvement of the utility model, described electric test fixture also comprises and is assembled in the locking mechanism covering, described locking mechanism can left rotation and right rotation to compress thread depressing mechanism or to depart from thread depressing mechanism.
As further improvement of the utility model, described locking mechanism comprises a horizontal part and the handle upwards protruding out from horizontal part front end, stirs handle and can make horizontal part left rotation and right rotation.
The utility model electric test jig Design is ingenious, simple in structure, processing ease, easy.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view that the utility model electric test fixture coordinates with cable.
Fig. 2 is the schematic perspective view that the utility model electric test fixture and cable are separated.
Fig. 3 is the stereographic map of the utility model electric test fixture.
Fig. 4 is the three-dimensional exploded view of the utility model electric test fixture.
Fig. 5 is the three-dimensional exploded view of another angle of the utility model electric test fixture.
Embodiment
Refer to shown in Fig. 1 to Fig. 5, the utility model electric test fixture 100 for network analyzer or time-domain reflectomer (not shown) combination, test cable 200 high frequency performance, as S parameters such as impedance, decay, return loss, frequency can reach 20Ghz.This electric test fixture 100 comprises upper cover 11, lower cover 12, circuit board 20, a pair of coaxial connector 30, locating piece 40, thread depressing mechanism 50, locking mechanism 60 and some screws 70.
Upper cover 11 is the top of lower cover 12, upper and lower cover 11,12 is fixed together by screw 70, circuit board 20 is clamped and fixed between upper and lower cover 11,12, upper cover 11 bottom surfaces are provided with groove 111, be positioned at the protuberance 112 of groove 111 and be positioned at the chimb 113 of groove 111 left and right sides, protuberance 112 is pressed on circuit board 20 with chimb 113, cabling 22 on circuit board 20 is exposed in groove 111, stops upper cover 11 to compress cabling 22, avoid destroying cabling 22.
The accepting groove 115 that upper cover 11 front ends are provided with a breach 114 and extend to the inside from breach 114, breach 114 runs through upper cover 11 up and down, and accepting groove 115 upwards runs through upper cover 11, does not run through upper cover 11 downwards and is provided with a diapire 116.Upper cover 11 has the circular hole 117 that upper cover 11 is run through in left and right, and circular hole 117 is through accepting groove 115.Upper cover 11 is provided with a rotating hole 118 that is positioned at accepting groove 115 outsides.Lower cover 12 protrudes out forward upper cover 11.
Circuit board 20 horizontal positioned, the upper surface of front end is placed with a line sheet metal 21, connector 30 is welded on circuit board 20 rear ends, sheet metal 21 is set to four, comprise a pair of differential signal sheet metal, two grounded metal sheet, sheet metal 21 is communicated with by some cablings 22 with connector 30, and cabling 22 is exposed to circuit board 20 upper surfaces, circuit board 20 is made easy, convenient.
Connector 30 has and is exposed to outside interface 31, in order to be connected with network analyzer or time-domain reflectomer.
The left and right sides of locating piece 40 is provided with the fixed orifice 41 running through up and down, and middle part is provided with some jubes 42, between every adjacent two jubes 42, forms a locating slot 43 that runs through up and down locating piece 42.Screw 70 is fixed on circuit board 20 upper surfaces through fixed orifice 41 by locating piece 40, locating slot 43 and sheet metal 21 consistencies from top to bottom, sheet metal 21 is exposed in locating slot 43, and locating piece 40 bottom surfaces are provided with the depression 44 that is positioned at locating slot 43 rears, avoids locating piece 40 to compress the cabling 20 on circuit board 20.
Thread depressing mechanism 50 is articulated on upper cover 11 by a rotating shaft 51, rotating shaft 51 is arranged in the circular hole 117 of upper cover 11, thread depressing mechanism 50 can rotate up and down relative to upper cover 11, thread depressing mechanism 50 comprises a main body 52, by screw 70, be fixed on first of main body 52 bottoms, the second press block 53, 54, first, the second press block 53, 54 are fixed in main body 52 by screw 70, main body 52 is articulated with upper cover 11, the first press block 53 is positioned at the rear of the second press block 52, main body 52 rear ends are positioned at accepting groove 115, front end can enter breach 114 or exit breach 114, when main body 50 front ends are positioned at breach 114, the first press block 53 is from the interior upper cover 11 that protrudes out downwards of breach 114, the second press block 54 is positioned at the place ahead of upper cover 11, the first press block 53 has the some pressure sections 531 that protrude out downwards.Pressure section 531 is corresponding with locating slot 43.
Locking mechanism 60 comprises a horizontal part 61 and the handle 62 upwards protruding out from horizontal part 61 front ends, horizontal part 61 rear ends are provided with a through hole 611, one screw 70 is locked in the rotating hole 118 of upper cover 11 through after this through hole 611, manually stirs handle 62 and can make horizontal part 61 around these screw 70 left rotation and right rotation.
When the utility model electric test fixture 100 is used, first, the wire 201 of cable 200 ends is plugged in corresponding locating slot 43 one by one.Secondly, manually rotate thread depressing mechanism 50, the press block 53 of the first press block 53 is via the breach 114 of upper cover 11, enter in locating slot 43 downwards and be pressed on wire 201, wire 201 is reliably contacted with the sheet metal 21 on circuit board 20, the second press block 54 is pressed on downwards on cable 200 simultaneously, and cable 200 is gripped with lower cover 12 by the second press block 54, prevents that cable 200 from being pullled.Finally, manually stir the handle 62 of locking mechanism 60, horizontal part 61 is rotated towards thread depressing mechanism 50, until horizontal part 61 front ends align with lower cover 12, horizontal part 61 is pressed on downwards on thread depressing mechanism 50, avoid thread depressing mechanism 50 to move up, indirectly guaranteed that wire 201 reliably contacts with sheet metal 21, make test process stable, reliable.After cable 200 has been tested, reverse operating said process, makes cable 200 quitting electric test fixtures 100.
100 designs of the utility model electric test fixture are ingenious, simple in structure, processing ease, easy, on circuit board 20, the locating slot 43 of sheet metal 21 and locating piece 40 is set to respectively four, can test four wires 201 simultaneously, i.e. a pair of differential signal line, two earth leads, guaranteed the integrality of cable 200 signals, locating piece 40 if damage, can be changed after using with thread depressing mechanism 50 is long-time, facilitate the maintenance of electric test fixture 100, extended serviceable life.
Although be example object, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize, in the situation that not departing from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (9)
1. an electric test fixture, it comprises upper cover, lower cover, circuit board, locating piece, connector and thread depressing mechanism, on described, lower cover is fixed with each other, described circuit board is contained in, in lower cover, described circuit board front end is placed with some sheet metals, rear end is provided with connector, described connector and sheet metal are electrically connected, described connector has and is exposed to outside interface, it is characterized in that: described locating piece is fixed on circuit board, locating piece is provided with some jubes, between every adjacent two jubes, be formed with the locating slot that runs through up and down locating piece, described sheet metal is exposed in locating slot, described thread depressing mechanism is articulated in and covers and can rotate up and down, described thread depressing mechanism is provided with the some pressure sections corresponding with locating slot, described pressure section can enter downwards on the wire that is pressed on cable after locating slot to guarantee that wire reliably contacts with sheet metal.
2. electric test fixture according to claim 1, is characterized in that: described sheet metal is set to four, comprises a pair of differential signal sheet metal and two grounded metal sheet.
3. electric test fixture according to claim 1, it is characterized in that: described circuit board surface is provided with some cablings of connection metal sheet and connector, described locating piece bottom surface is provided with the depression that is positioned at locating slot rear, and described cabling is exposed in depression to avoid locating piece to compress cabling.
4. electric test fixture according to claim 3, it is characterized in that: described circuit board is clamped between upper and lower cover, described upper cover bottom surface is provided with groove, be positioned at the protuberance of groove and be positioned at the chimb of the groove left and right sides, protuberance and chimb are pressed on respectively on circuit board, and the cabling on circuit board is exposed in groove to stop upper cover to compress cabling.
5. electric test fixture according to claim 1, it is characterized in that: the accepting groove that described upper cover front end is provided with a breach and extends to the inside from breach, breach runs through upper cover up and down, accepting groove upwards runs through upper cover, do not run through upper cover downwards and be provided with a diapire, described upper cover has the circular hole that upper cover is run through in left and right, and circular hole is through accepting groove, and a rotating shaft is articulated in thread depressing mechanism to cover through circular hole.
6. electric test fixture according to claim 5, it is characterized in that: described thread depressing mechanism comprises main body and is fixed on the first press block of bottom part body, described pressure section is located on the first press block, and described the first press block can enter in breach downwards and upwards exit breach.
7. electric test fixture according to claim 6, it is characterized in that: described thread depressing mechanism comprises the second press block that is fixed on bottom part body, described the second press block is positioned at the place ahead of the first press block and upper cover, and described the second press block can clamp cable jointly with lower cover.
8. electric test fixture according to claim 1, is characterized in that: described electric test fixture also comprises and be assembled in the locking mechanism covering, described locking mechanism can left rotation and right rotation to compress thread depressing mechanism or to depart from thread depressing mechanism.
9. electric test fixture according to claim 8, is characterized in that: described locking mechanism comprises a horizontal part and the handle upwards protruding out from horizontal part front end, stirs handle and can make horizontal part left rotation and right rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165833.9U CN203838177U (en) | 2014-04-04 | 2014-04-04 | Electrical test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420165833.9U CN203838177U (en) | 2014-04-04 | 2014-04-04 | Electrical test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838177U true CN203838177U (en) | 2014-09-17 |
Family
ID=51516001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420165833.9U Expired - Fee Related CN203838177U (en) | 2014-04-04 | 2014-04-04 | Electrical test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838177U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810663A (en) * | 2015-03-19 | 2015-07-29 | 苏州市大富通信技术有限公司 | Connector used for cable signal testing |
| CN105467165A (en) * | 2015-12-10 | 2016-04-06 | 苏州世纪福智能装备股份有限公司 | A pin-free testing device for a high-density connector |
| CN111044762A (en) * | 2020-01-19 | 2020-04-21 | 安费诺电子装配（厦门）有限公司 | High-speed former cable electrical integrity test fixture |
| CN113588994A (en) * | 2021-07-16 | 2021-11-02 | 台湾立讯精密有限公司 | Cable test fixture |
-
2014
- 2014-04-04 CN CN201420165833.9U patent/CN203838177U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810663A (en) * | 2015-03-19 | 2015-07-29 | 苏州市大富通信技术有限公司 | Connector used for cable signal testing |
| CN104810663B (en) * | 2015-03-19 | 2019-01-04 | 安徽省大富重工技术有限公司 | A kind of connector for cable signal test |
| CN105467165A (en) * | 2015-12-10 | 2016-04-06 | 苏州世纪福智能装备股份有限公司 | A pin-free testing device for a high-density connector |
| CN111044762A (en) * | 2020-01-19 | 2020-04-21 | 安费诺电子装配（厦门）有限公司 | High-speed former cable electrical integrity test fixture |
| CN113588994A (en) * | 2021-07-16 | 2021-11-02 | 台湾立讯精密有限公司 | Cable test fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20200404 |