CN207352040U - A kind of bead thermistor test fixture - Google Patents
A kind of bead thermistor test fixture Download PDFInfo
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- CN207352040U CN207352040U CN201721269070.2U CN201721269070U CN207352040U CN 207352040 U CN207352040 U CN 207352040U CN 201721269070 U CN201721269070 U CN 201721269070U CN 207352040 U CN207352040 U CN 207352040U
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Abstract
The utility model discloses a kind of bead thermistor test fixture, wherein, guide-localization module, upper clamping fixture block, module and lower clamping fixture block are from top to bottom arranged in order in fixture, fixture active module is placed in the interior intracavitary of module in fixture, spring and movable holddown are respectively arranged in the both ends of fixture active module, multiple clamping reeds from bottom to top sequentially pass through the lower through-hole of lower clamping fixture block, multiple upper through holes of the multiple movable through holes and upper clamping fixture block of fixture active module, the upper end of multiple guide-localization through holes of guide-localization module is tubaeform, formation is used for the passage that the lead of bead thermistor is inserted between clamping the first elastic piece and the second elastic piece of reed.The utility model is by designing guide channel structure; and clamping reed and lead compressing structure; make this test fixture that there is stronger lead chucking power to ensure that thermal resistor does not drop in test process, there is lead guide-localization and pilot protection function, and efficiency can be improved.
Description
Technical field
The utility model is related to a kind of thermal resistor test fixture, more particularly to it is a kind of easy to clamping and clamping it is stable
Bead thermistor test fixture.
Background technology
The heat-sensitive sensor of bead thermistor, that is, ball or oval pearl shape, gives birth in the batch of bead thermistor
During production, its resistance value at different temperatures need to accurately be tested, to determine the accordance of product resistance value.Test
During, bead thermistor can be immersed in thermostatic medium（Generally liquid）, product is inversion state at this time, is led at this time
Line lead is downward, if conductor leading chucking power is inadequate, then can cause to be likely to occur following problem：Bead thermistor is lost
And fall in oily domain；Conductor leading loose contact causes test data inaccurate；Since chucking power is inadequate, need to artificially be repaiied
Just, so testing efficiency reduces.
At present, bead thermistor test fixture still surveys frock using the oil of traditional common type, traditional common type
Oil, which surveys frock, can realize clamping function, but because of no conductor leading chucking power design requirement, also be set without conductor leading guide-localization
Meter requires, so easily leading to thermal resistor deformation or damage after clamping, can cause chucking power insufficient after long-time use, and
It is improved comparatively laborious on the basis of original structure, has not been suitable for the accurate test of bead thermistor resistance value.
Utility model content
The purpose of this utility model be that to solve the above-mentioned problems and provide it is a kind of easy to clamping and clamping it is stable
Bead thermistor test fixture.
The utility model is achieved through the following technical solutions above-mentioned purpose：
Module, folder in a kind of bead thermistor test fixture, including guide-localization module, upper clamping fixture block, fixture
Have active module, spring, movable holddown, lower clamping fixture block and clamping reed, the guide-localization module, the upper clamping fixture
Module and the lower clamping fixture block are from top to bottom arranged in order in block, the fixture, and the guide-localization module is equipped with multiple perpendicular
To guide-localization through hole, the upper clamping fixture block is equipped with multiple vertical upper through holes, and module is equipped with inner cavity, institute in the fixture
State fixture active module and be equipped with multiple vertical movable through holes, the fixture active module is placed in the inner cavity of module in the fixture
Interior, the spring is installed between one end of the fixture active module and the inner cavity cavity wall of module in the fixture, the work
Dynamic pressure block is installed in the fixture in the inner cavity of module and is used for the other end for compressing the fixture active module, the fixture
Lower module is equipped with vertical lower through-hole, multiple guide-localization through holes, multiple upper through holes, multiple movable through holes with
Multiple clamping reeds mutually correspond；Multiple clamping reeds from bottom to top sequentially pass through the lower through-hole, multiple
The activity through hole and multiple upper through holes, the upper end of multiple guide-localization through holes is tubaeform, the clamping reed
The first elastic piece and the second elastic piece being connected with each other including lower end, shape between first elastic piece and second elastic piece
Into the lead for the bead thermistor（That is the signal wire of thermal resistor）The passage of insertion.
In said structure, guide-localization module is used to guide the lead of bead thermistor to be from top to bottom inserted into, thereon
The tubaeform mouth at end is conducive to quickly and accurately be inserted into lead；Upper clamping fixture block, fixture active module and lower clamping fixture block difference
Equipped with through hole, for installing, positioning clamping reed, fixture active module therein also coordinates with spring and movable holddown, realizes
The function that clamping reed is compressed and unclamped, so as to more stably clamp clamping reed and lead, can also take easily
It is lower clamping reed and lead, shape, size and the mounting means of movable holddown can be realized easily using the prior art, if its
It can realize the promotion to fixture active module and reset function.
Preferably, the hypomere of first elastic piece is oblique line section and epimere is straightway, second elastic piece
Whole section is straightway, and the epimere of the passage between first elastic piece and second elastic piece is straight channel and hypomere is
Up big and down small access ramp.As needed, the structure of two the first elastic piece connections can also be used, then its hypomere is just " V "
Shape, its clamping effect are also fine.
For the ease of operation, the aperture of the guide-localization through hole is identical with the aperture of the upper through hole and is respectively less than described
The aperture of movable through hole.In this way, in through hole on the movable through-hole alignment of fixture active module and guide-localization through hole, it is not necessary to
The precision of alignment is very high, you can clamping reed is taken out in insertion, and somewhat increasing any in operant activity briquetting, it lives fixture
The distance that dynamic model block promotes, you can realize to clamping the compression of reed, so not interfering with the compression to clamping reed and lead
Effect.
The beneficial effects of the utility model are：
The utility model makes pearl temperature-sensitive by designing guide channel structure, and clamping reed and lead compressing structure
There is resistor test fixture stronger lead chucking power to ensure that thermal resistor does not drop in test process, leads with lead
To positioning function, ensure that whole clamp structure is compact to lead not damaged during inserting, either simplex dress test quantity lifting, production
Product installation speed can lift 1 times more originally.
Brief description of the drawings
Fig. 1 is the front view of bead thermistor test fixture described in the utility model；
Fig. 2 is the top view of bead thermistor test fixture described in the utility model；
Fig. 3 is the A-A sectional views in Fig. 2；
Fig. 4 is the front view of the clamping reed of bead thermistor test fixture described in the utility model, visual angle and Fig. 3
Consistent and ratio is more than Fig. 3；
Fig. 5 is the left view of the clamping reed of bead thermistor test fixture described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As Figure 1-Figure 5, bead thermistor test fixture described in the utility model include guide-localization module 1,
Module 6, fixture active module 9, spring 4, movable holddown 5, lower clamping fixture block 7 and clamping reed 8 in upper clamping fixture block 3, fixture,
Module 6 and lower clamping fixture block 7 are from top to bottom arranged in order in guide-localization module 1, upper clamping fixture block 3, fixture, guide-localization mould
Block 1 is equipped with multiple vertical guide-localization through holes 2, and upper clamping fixture block 3 is equipped with multiple vertical upper through holes（It is unmarked in figure, with
Guide-localization through hole 2 is coaxial, should be readily appreciated that shown in figure）, module 6 is equipped with inner cavity in fixture, and fixture active module 9 is equipped with more
A vertical movable through hole（It is unmarked in figure, it is coaxial with guide-localization through hole 2, it should be readily appreciated that shown in figure）, fixture activity
Module 9 is placed in the interior intracavitary of module 6 in fixture, and spring 4 is installed on one end of fixture active module 9（Left end in Fig. 3）With folder
In tool between the inner cavity cavity wall of module 6, movable holddown 5 is installed in fixture in the inner cavity of module 6 and for compressing fixture activity
The other end of module 9（Right end in Fig. 3）, lower clamping fixture block 7 is equipped with vertical lower through-hole（It is unmarked in figure, it is whole using one
Through hole, horizontal extent cover the horizontal zone where all guide-localization through holes 2, should be readily appreciated that shown in figure）, multiple guiding
Positioning through hole 2, multiple upper through holes, multiple movable through holes are mutually corresponded with multiple clamping reeds 8, guide-localization
The aperture of through hole 2 is identical with the aperture of the upper through hole and the aperture of respectively less than described movable through hole；Multiple clamping reeds 8 are under
Sequentially pass through the lower through-hole, multiple movable through holes and multiple upper through holes on and, multiple guide-localization through holes 2 it is upper
Hold to be tubaeform, clamping reed 8 includes the first elastic piece 81 and the second elastic piece 82 that lower end is connected with each other, the first elastic piece 81
Hypomere be oblique line section and epimere is straightway, whole section of the second elastic piece 82 is straightway, the first elastic piece 81 and second
Formed between elastic piece 82 and be used for the bead thermistor（Do not show in figure）Lead insertion passage, the epimere of the passage
It is up big and down small access ramp 84 for straight channel 83 and hypomere.
As Figure 1-Figure 5, the operation principle of bead thermistor test fixture described in the utility model is as follows：
Movable holddown 5 is first unclamped, spring 4 promotes fixture active module 9 to be abutted with movable holddown 5 and contacts, multiple at this time to lead
Vertically corresponded to positioning through hole 2, multiple upper through holes, multiple movable through holes, by multiple clamping reeds 8 under
The lower through-hole, multiple movable through holes and multiple upper through holes are sequentially passed through on and, completes the assembling of this fixture at this time
And carry out test and prepare；After the lead of multiple bead thermistors is from top to bottom sequentially passed through multiple guide-localization through holes 2
The straight channel 83 and access ramp 84 of multiple clamping reeds 8 are sequentially entered, finally enters the lower end of access ramp 84 by the first elastic piece
81 and second elastic piece 82 clamp；Movable holddown 5 is finally compressed, promotes fixture active module 9 to move and compress spring 4, at this time
The movable through hole of fixture active module 9 is mobile and compresses the first elastic piece 81 and the second elastic piece 82 using its hole wall, so that
Lead further by stable holding, completes clamping process, can start testing experiment.After the completion of test, movable holddown 5 is unclamped,
Spring 4 promotes fixture active module 9 with movable holddown 5 against contacting, at this time multiple guide-localization through holes 2, multiple described upper lead to
Hole, multiple movable through holes are vertically corresponding, and the first elastic piece 81 and the second elastic piece 82 are in its own elastic reaction
Lower recovery, unclamps the clamping to lead, you can more easily remove lead and resistor.
Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model
System, as long as the technical solution that can be realized without creative work on the basis of above-described embodiment, is regarded as falling into
In the rights protection scope of the utility model patent.
Claims (3)
- A kind of 1. bead thermistor test fixture, it is characterised in that：Including guide-localization module, upper clamping fixture block, fixture Middle module, fixture active module, spring, movable holddown, lower clamping fixture block and clamping reed, it is the guide-localization module, described Module and the lower clamping fixture block are from top to bottom arranged in order in upper clamping fixture block, the fixture, and the guide-localization module is set There are multiple vertical guide-localization through holes, the upper clamping fixture block is equipped with multiple vertical upper through holes, and module is set in the fixture There is inner cavity, the fixture active module is equipped with multiple vertical movable through holes, and the fixture active module is placed in the fixture The interior intracavitary of module, the spring be installed on one end of the fixture active module and module in the fixture inner cavity cavity wall it Between, the movable holddown is installed in the fixture in the inner cavity of module and for compressing the another of the fixture active module End, the lower clamping fixture block are equipped with vertical lower through-hole, multiple guide-localization through holes, multiple upper through holes, Duo Gesuo Movable through hole is stated mutually to correspond with multiple clamping reeds；Multiple clamping reeds from bottom to top sequentially pass through described Lower through-hole, multiple movable through holes and multiple upper through holes, the upper end of multiple guide-localization through holes is tubaeform, institute Stating clamping reed includes the first elastic piece and the second elastic piece that lower end is connected with each other, first elastic piece and second bullet Property piece between formed for the bead thermistor lead be inserted into passage.
- 2. bead thermistor test fixture according to claim 1, it is characterised in that：Under first elastic piece Section is oblique line section and epimere is straightway, and whole section of second elastic piece is straightway, first elastic piece and described The epimere of passage between second elastic piece is straight channel and hypomere is up big and down small access ramp.
- 3. bead thermistor test fixture according to claim 1 or 2, it is characterised in that：The guide-localization leads to The aperture in hole is identical with the aperture of the upper through hole and the aperture of respectively less than described movable through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269070.2U CN207352040U (en) | 2017-09-29 | 2017-09-29 | A kind of bead thermistor test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269070.2U CN207352040U (en) | 2017-09-29 | 2017-09-29 | A kind of bead thermistor test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352040U true CN207352040U (en) | 2018-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721269070.2U Active CN207352040U (en) | 2017-09-29 | 2017-09-29 | A kind of bead thermistor test fixture |
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| Country | Link |
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| CN (1) | CN207352040U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986687A (en) * | 2021-04-30 | 2021-06-18 | 成都宏明电子股份有限公司 | Thermistor chip screening test auxiliary fixtures with surface electrode |
| CN112986749A (en) * | 2021-04-30 | 2021-06-18 | 成都宏明电子股份有限公司 | NTC thermistor chip screening test auxiliary fixtures with surface electrode |
-
2017
- 2017-09-29 CN CN201721269070.2U patent/CN207352040U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112986687A (en) * | 2021-04-30 | 2021-06-18 | 成都宏明电子股份有限公司 | Thermistor chip screening test auxiliary fixtures with surface electrode |
| CN112986749A (en) * | 2021-04-30 | 2021-06-18 | 成都宏明电子股份有限公司 | NTC thermistor chip screening test auxiliary fixtures with surface electrode |
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