CN205388626U - Test fixture of wrist strap class resistance - Google Patents

Test fixture of wrist strap class resistance Download PDF

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Publication number
CN205388626U
CN205388626U CN201620168826.3U CN201620168826U CN205388626U CN 205388626 U CN205388626 U CN 205388626U CN 201620168826 U CN201620168826 U CN 201620168826U CN 205388626 U CN205388626 U CN 205388626U
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Prior art keywords
wrist strap
probe
contact post
contact
test fixture
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CN201620168826.3U
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Chinese (zh)
Inventor
夏江乔
邓世超
张华贞
王春明
刘佳
穆永周
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Goertek Inc
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Goertek Inc
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Abstract

The utility model discloses a test fixture of wrist strap class resistance includes and accurate ohmmeter and test platform wherein is equipped with the wrist strap fixing base on the test platform respectively, contact post, probe, correction stick, contact post driver part and probe driver part, and the probe is connected with accurate ohmmeter electricity, and by rectifying the stick with two contact post short circuits, after probe and contact post contacted, accurate ohmmeter recorded access resistance so. Can know according to passing test the principle that the wrist strap resistance determined the hardware qualification rate of product, the utility model discloses a test fixture of wrist strap class resistance can be used for detecting the hardware qualification rate of intelligent wrist strap product. Because of above -mentioned contact post can be removed by the automatic drive of contact post driver part, the probe can be by probe driver part drive automatically move again. Consequently the utility model discloses a test fixture of wrist strap class resistance inserts very little external resistance, makes its the wrist strap resistance that can measure intelligent wrist strap class product to reach the accurate mesh that detects product hardware.

Description

The test fixture of wrist strap class resistance
Technical field
This utility model relates to wrist strap series products hardware performance detection technique field, particularly relates to the test fixture of a kind of wrist strap class resistance.
Background technology
Popular along with wearable consumer electronics, Intelligent spire lamella buds out into popularity as a new motion consumer electronics.Although Intelligent spire lamella product varies, but all wrist straps all can the instrument of perceptually human motion state.The perceptually wrist strap of the instrument of human motion state, it is necessary to connect the circuit such as microcircuit and sensor.And the quality of circuit, it is directly connected to the performance of Intelligent spire lamella products-hardware.Before dispatching from the factory in order to ensure Intelligent spire lamella series products, hardware is qualified, occurs in that the connection test device measuring foregoing circuit conduction.
The operation principle of conducting measurement apparatus is: the break-make according to tested circuit, carrys out the conduction property of decision circuit, and then judges that whether the hardware of product is qualified.But inventor have found that the operation principle of conducting measurement apparatus, there are some defects.Such as: when the partial circuit of tested circuit is damaged, the result of its measurement remains as conducting, cause that test result can not entirely accurate.
For above-mentioned technical problem, those skilled in the art converted thinking through conscientious research.Specifically: measure wrist strap resistance, according to the resistance size measured, judge that whether the hardware of product is qualified.If because during the device failure such as the partial circuit of product or sensor, necessarily there is relatively large change in its overall resistance, then when measuring the resistance of this product, it is possible to draw and carry out the whether intact result more accurately of decision circuit than surveying electric current.Therefore can pass through to limit the scope of resistance, judge that whether Intelligent spire lamella series products is qualified.But learn according to repetition test, wrist strap resistance is just qualified at 0.5 below Ω, such micro-resistance, it is necessary to measure the external resistances less (at least in resistance order of magnitude lower) that accesses of device of wrist strap resistance, just can make measurement closer to actual value.
As it is shown in figure 1, existing wrist strap 4 includes wrist strap storehouse 41 and the hard contact 40 caved inward inside wrist strap storehouse 41.
Utility model content
This utility model provides the test fixture of a kind of wrist strap class resistance, and this frock accesses very little external resistance so that it is can measure the wrist strap resistance of Intelligent spire lamella series products, thus reaching the purpose that accurately whether detection products-hardware is qualified.
For solving above-mentioned technical problem, the technical solution of the utility model is:
The test fixture of a kind of wrist strap class resistance includes accurate ohmmeter and test platform, described test platform is respectively equipped with: seat fixed by wrist strap, the fixing seat of described wrist strap includes boss, and described boss size shape is suitable with wrist strap storehouse, and the side of described boss is provided with two breach;The contact post that two be arranged in parallel, the sidewall of every described contact post is equipped with contact, and described contact is plane away from the end of described contact post;Two described contact posts are respectively provided at two described indentation, there;Some probes, one end of every described probe is bulb end, and described bulb end contacts with described contact post;The other end of all described probes all electrically connects with described accurate ohmmeter;Testing rod, described testing rod is by two described contact post short circuits, for measuring the access resistance of described accurate ohmmeter;Contact post driver part, described contact post driver part drives two described contact posts to move;Probe actuation parts, described probe actuation parts drive described probe to move.
Optimal way is, the corresponding described contact touching position of every described contact post is cambered surface.
Optimal way is, described contact post driver part includes contact post propulsion cylinder, described contact post propulsion cylinder is in transmission connection with the fixing seat of contact post, two described contact posts are vertically located on the fixing seat of described contact post, the fixing seat of described contact post is located on the first rail plate, and described first rail plate is located on described test platform and be arranged in parallel with described contact.
Optimal way is, described contact post driver part also includes insulating base, and it is fixing between seat and described first rail plate that described insulating base is located at described contact post.
Optimal way is, described test platform is additionally provided with limited block, and described limited block is provided with the side of described breach and aligns setting towards the face of described insulating base with described boss.
Optimal way is, described probe actuation parts include probe propulsion cylinder, and described probe propulsion cylinder and probe base are in transmission connection, and described probe base is crossed on the second rail plate, and described second rail plate is located on described test platform;Every described probe is each attached in described probe base.
Optimal way is, the other end of every described probe all be arranged in parallel with described second rail plate.
Optimal way is, described second rail plate is described first rail plate, and described contact post propulsion cylinder and described probe propulsion cylinder set up separately in the both sides of described first rail plate.
Optimal way is, the fixing seat of described wrist strap also includes the support being located on described test platform, and described boss is located at above described support.
Optimal way is, described first rail plate passing beneath from described support.
After adopting technique scheme, the beneficial effects of the utility model are: include accurate ohmmeter and test platform due to the test fixture of wrist strap class resistance of the present utility model, test platform is wherein respectively equipped with the fixing seat of wrist strap, contact post, probe, testing rod, contact post driver part and probe actuation parts, probe electrically connects with accurate ohmmeter.Because being provided with accurate ohmmeter, this utility model is enable to measure the resistance value of wrist strap.Because testing rod is by two contact post short circuits, after probe contacts with contact post, accurate ohmmeter records access resistance, further ensure that this utility model records the accuracy of the resistance of wrist strap.According to judging that the principle of hardware qualification rate of product is it can be seen that the test fixture of wrist strap class resistance of the present utility model by testing wrist strap resistance, it is possible to for detecting the hardware qualification rate of Intelligent spire lamella product.Again because above-mentioned contact post can be driven mobile by contact post driver part, probe can be driven mobile by probe actuation parts, makes the easy to operate testing efficiency of this utility model high.Therefore the test fixture of wrist strap class resistance of the present utility model, accesses very little external resistance so that it is can measure the wrist strap resistance of Intelligent spire lamella series products, thus reaching the purpose that accurately whether detection products-hardware is qualified.
The contact touching position corresponding due to every contact post is cambered surface;This structure make probe when contacting with contact post be cambered surface to cambered surface, enable contact post and probe oneself correcting keep good contact, thus reducing the resistance of access.
Owing to contact post driver part includes contact post propulsion cylinder, contact post propulsion cylinder is in transmission connection with the fixing seat of contact post, two contact posts are vertically located on the fixing seat of contact post, the fixing seat of contact post is located on the first rail plate, and the first rail plate is located on test platform and be arranged in parallel with contact;This structure makes contact post under the promotion of contact post propulsion cylinder, is automatically moved.
Owing to being additionally provided with limited block on test platform, this limited block sets side jaggy and aligns setting towards the face of insulating base with boss;This structure makes the movement of insulating base be restricted, it is ensured that contact post driver part reliability of operation.
Owing to probe actuation parts include probe propulsion cylinder, probe propulsion cylinder and probe base are in transmission connection, and this probe base is crossed on the second rail plate, and this second sliding rail is located on test platform;The other end of every probe is each attached in probe base;This structure enables probe under the promotion of probe propulsion cylinder, is automatically moved.
Owing to every probe all be arranged in parallel with the second rail plate;This structure makes probe contact for being mutually perpendicular to contact post, allows contacting with each other more stable, makes test result more accurate.
In sum, the test fixture of wrist strap class resistance of the present utility model, solve the mode utilizing test connecting and disconnecting of the circuit in prior art, judge when whether Intelligent spire lamella series products is qualified, it is judged that inaccurate technical problem.The test fixture of wrist strap class resistance of the present utility model accesses very little external resistance, makes Intelligent spire lamella series products can pass through to measure micro-resistance of wrist strap, whether qualified accurately detects Intelligent spire lamella series products, indirectly improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of wrist strap in prior art;
Fig. 2 is the structural representation of the test fixture of this utility model wrist strap class resistance;
Fig. 3 is the structure for amplifying schematic diagram of test platform of the present utility model;
Fig. 4 is this utility model test platform structure for amplifying schematic diagram when removing the fixing seat of wrist strap;
In figure: 1 test platform, 2 housings, 3 accurate ohmmeters, 4 wrist straps, 40 hard contacts, 41 wrist strap storehouses, 5 supports, 6 contact post propulsion cylinders, 7 boss, 70 breach, 8 cylinder contiguous blocks, 9 contacts, 10 testing rods, 11 probe propulsion cylinders, 12 probe cylinder fixed blocks, seat fixed by 13 contact posts, 14 probe base, 15 first rail plates, seat fixed by 16 guide rails, 17 probes, 18 contact posts, 19 limited blocks, 20 insulating bases, 21 contact post cylinder fixed blocks.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.
As in figure 2 it is shown, the test fixture of a kind of wrist strap class resistance includes housing 2, accurate ohmmeter 3 is set in housing 2, housing 2 is further opened with window, make the numerical value of accurate ohmmeter 3 visual, make accurate ohmmeter 3 operable.Housing 2 be arranged above with test platform 1, test platform 1 is respectively equipped with: wrist strap fixes seat, two contact posts 18 be arrangeding in parallel, many probes 17, testing rod 10, contact post driver part and probe actuation parts.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the fixing seat of wrist strap includes the support 5 being crossed on test platform 1, and support 5 is provided with a boss 7.Wrist strap storehouse 41 in boss 7 size shape and Fig. 1 is suitable, and the side of boss 7 is provided with two breach 70, and it is corresponding that two breach 70 are stuck on boss 7 with wrist strap 4 position of latter two hard contact 40.
Two breach 70 places are man-to-man is provided with a contact post 18, and contact post 18 is vertically located on the fixing seat 13 of contact post, and the fixing seat 13 of contact post is located on insulating base 20, the preferred bakelite seat of insulating base 20.Insulating base 20 is crossed on the first rail plate 15, and first rail plate 15 of the present embodiment passes from the bottom of support 5.First rail plate 15 is located on the fixing seat 16 of guide rail, and the fixing seat 16 of guide rail is located on test platform 1;And the first rail plate 15 be arranged in parallel with contact 9.Insulating base 20 is in transmission connection by cylinder contiguous block 8 and contact post propulsion cylinder 6, and contact post propulsion cylinder 6 is located at one end of the first rail plate 15, and is fixed on test platform 1 by contact post cylinder fixed block 21.It is contact post driver part that above-mentioned contact post fixes seat 13, insulating base 20, cylinder contiguous block 8 and contact post propulsion cylinder 6.
Being equipped with a contact 9 on the sidewall of every contact post 18, this contact 9 is vertically arranged with contact post 18, and the end away from contact post 18 is plane, and this plane goes to contact with the hard contact 40 caved in, for the contact of plane and cambered surface.Two contacts 9 of two contact posts 18 are each provided at breach 70 side, and after wrist strap 4 is stuck on boss 7, the plane of contact 9 is towards hard contact 40.Under the effect of contact post driver part, contact post 18 moves to hard contact 40 in breach 70, until contacting with hard contact 40.The displacement of the contact post 18 of the present embodiment is 3mm.On the test platform 1 of both sides, insulating base 20 front, additionally it is respectively equipped with one piece of limited block 19, every piece of limited block 19 is all provided with the side of breach 70 and aligns setting towards the face of insulating base 20 side with boss 7, and namely contact post propulsion cylinder 6 can not say that insulating base 20 pushes through breach 70.
The present embodiment includes four probes 17, and every probe 17 all be arranged in parallel with the first rail plate 15, and one end of every probe 17 is bulb end, and the other end is each provided in probe base 14;The other end of all probes 17 all electrically connects with accurate ohmmeter 3.Probe base 14 is crossed on the first rail plate 15, and probe base 14 and probe propulsion cylinder 11 are in transmission connection simultaneously.Probe propulsion cylinder 11 is fixed on the test platform 1 of first rail plate 15 other end by another block probe cylinder fixed block 12.Driving the probe actuation parts that probe 17 moves to include probe propulsion cylinder 11, probe base 14 and the second rail plate, second rail plate of the present embodiment has selected the first rail plate 15 of contact post driver part.Lower four probes 17 of propelling of probe propulsion cylinder 11 contact contact post 18 simultaneously, define four-wire system structure, eliminate probe 17 and the part wire peripheral resistance up to accurate ohm digital display meter place.
When measuring the resistance of wrist strap 4, first with testing rod 10 by two contact post 18 short circuits, start accurate ohmmeter 3 and measure an access resistance, the resistance of this access resistance is much smaller than the resistance of wrist strap to be measured, this access resistance is generally less than 30m Ω, and the internal resistance of wrist strap resistance to be measured and wrist strap conductive structure to be measured is generally less than 0.5 Ω, the former at least ratio the latter order of magnitude lower in resistance, this access resistance by accurate ohmmeter 3 memory storage to cut as internal resistance when testing, to ensure the accuracy of measured result in the process of follow-up measurement wrist strap resistance to be measured.Then wrist strap 4 is placed on the boss 7 of the fixing seat of wrist strap, allows hard contact 40 and two breach 70 be correspondingly arranged, press with hands and be pressed onto position.Start frock, contact post propulsion cylinder 6 action, it promotes insulating base 20 to move on the first rail plate 15, makes contact post 18 be fixed on along with movement, two contact posts 18 are driven simultaneously, finally make two contacts 9 on two contact posts 18 move towards corresponding hard contact 40 simultaneously.Stopping when the stroke of contact post propulsion cylinder 6 is 3mm, limited block 19 is also by spacing for insulating base 20.Stop the plane of relief contact 9 and the cambered surface reliable contacts of corresponding hard contact 40.Subsequently start probe propulsion cylinder 11, allow it promote probe base 14 to move to contact post 18 along the first rail plate 15, until the bulb end of probe 17 contacts with contact post 18.Everywhere after contact, accurate ohm digital display meter test wrist strap 4 resistance, when data measured is shown in below 500m Ω, the hardware performance of the wrist strap 4 that surface is measured is qualified, meets requirement.After being completed, probe propulsion cylinder 11 drives probe base 14 to retract along the first rail plate 15, contact post propulsion cylinder 6 drives insulating base 20 to retract at the first rail plate 15, contact post 18 is made to move in corresponding breach 70 position, separate with hard contact 40, finally wrist strap 4 has been taken off from boss 7.
Additionally support 5 is positioned at correspondence boss 7 place, probe 17 side and is provided with opening, it is simple to the movement of probe base 14.When the second rail plate can be arranged to any direction, as long as under the driving of probe propulsion cylinder 11, probe base 14 can go to contact with the sidewall of contact post 18 with probe 17.And the first rail plate 15 parallels setting with contact 9, it is ensure that contact 9 is by alternating translational, can be achieved with the contact with hard contact 40 or separates.
Contact post 18 of the present utility model is made up of red copper, and resistance is little;Testing rod 10 preferably surveys the correction stick that resistance is 15m about Ω.
The above preferred embodiment of the present utility model; not in order to limit the present invention; all make within the spirit and principles in the present invention any amendment, etc. the improvement etc. of test fixture structure of same wrist strap class resistance, should be included within protection domain of the present utility model.

Claims (10)

1. the test fixture of wrist strap class resistance, it is characterised in that include accurate ohmmeter and test platform, described test platform is respectively equipped with:
Seat fixed by wrist strap, and the fixing seat of described wrist strap includes boss, and described boss size shape is suitable with wrist strap storehouse, and the side of described boss is provided with two breach;
The contact post that two be arranged in parallel, two described contact posts are respectively provided at two described indentation, there;Being equipped with contact on the sidewall of every described contact post, described contact is plane away from the end of described contact post;
Some probes, one end of every described probe is bulb end, and described bulb end contacts with described contact post;The other end of all described probes all electrically connects with described accurate ohmmeter;
Testing rod, described testing rod is by two described contact post short circuits, for measuring the access resistance of described accurate ohmmeter;
Contact post driver part, described contact post driver part drives two described contact posts to move;
Probe actuation parts, described probe actuation parts drive described probe to move.
2. the test fixture of wrist strap class resistance according to claim 1, it is characterised in that the corresponding described contact touching position of every described contact post is cambered surface.
3. the test fixture of wrist strap class resistance according to claim 1, it is characterized in that, described contact post driver part includes contact post propulsion cylinder, described contact post propulsion cylinder is in transmission connection with the fixing seat of contact post, two described contact posts are vertically located on the fixing seat of described contact post, the fixing seat of described contact post is located on the first rail plate, and described first rail plate is located on described test platform and be arranged in parallel with described contact.
4. the test fixture of wrist strap class resistance according to claim 3, it is characterised in that described contact post driver part also includes insulating base, it is fixing between seat and described first rail plate that described insulating base is located at described contact post.
5. the test fixture of wrist strap class resistance according to claim 4, it is characterised in that be additionally provided with limited block on described test platform, described limited block is provided with the side of described breach and aligns setting towards the face of described insulating base with described boss.
6. the test fixture of the wrist strap class resistance according to any one of claim 1 to 5, it is characterized in that, described probe actuation parts include probe propulsion cylinder, described probe propulsion cylinder and probe base are in transmission connection, described probe base is crossed on the second rail plate, and described second rail plate is located on described test platform;The other end of every described probe is each attached in described probe base.
7. the test fixture of wrist strap class resistance according to claim 6, it is characterised in that every described probe all be arranged in parallel with described second rail plate.
8. the test fixture of wrist strap class resistance according to claim 7, it is characterised in that described second rail plate is described first rail plate, described contact post propulsion cylinder and described probe propulsion cylinder set up separately in the both sides of described first rail plate.
9. the test fixture of wrist strap class resistance according to claim 8, it is characterised in that the fixing seat of described wrist strap also includes the support being located on described test platform, and described boss is located at above described support.
10. the test fixture of wrist strap class resistance according to claim 9, it is characterised in that described first rail plate passing beneath from described support.
CN201620168826.3U 2016-03-05 2016-03-05 Test fixture of wrist strap class resistance Active CN205388626U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320408A (en) * 2019-07-31 2019-10-11 贵州振华华联电子有限公司 A kind of Miniature rotary switch measuring contact resistance device
CN111457955A (en) * 2020-05-19 2020-07-28 Oppo(重庆)智能科技有限公司 Detection device for wearable equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320408A (en) * 2019-07-31 2019-10-11 贵州振华华联电子有限公司 A kind of Miniature rotary switch measuring contact resistance device
CN111457955A (en) * 2020-05-19 2020-07-28 Oppo(重庆)智能科技有限公司 Detection device for wearable equipment

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GR01 Patent grant
C56 Change in the name or address of the patentee
CP01 Change in the name or title of a patent holder

Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.