A kind of pogo pin single action test probe
Technical field
The utility model relates to Electronic Testing field, particularly relates to the single action test probe that a kind of pogo pin test fixture uses.
Background technology
Pogo pin(probe type connecter) be a kind of precision connector be applied in the electronic products such as mobile phone, be widely used in semiconductor equipment, play connection function.
At present, in prior art, two kinds are mainly divided into the test of electronic product components and parts.The first is the FPC adopting two ends to be welded with male and female Connector respectively, and be connected by being taken off with product to be measured by FPC manually, further connecting test equipment detects.This test mode needs to drop into a large amount of human and material resources, during test Connector to take off serviceable life lower, turnover rate is high, test yield is low, the Connector scrappage on product to be measured is caused to raise, FPC there is one end Connector bad just needs to change whole piece FPC simultaneously, cause material resources transition to waste like this.
Another kind of scheme is the most emerging probe test in industry, i.e. pogo pin test fixture, adopt pogo pin probe and product face contact to be measured, product signal to be measured is caused testing apparatus detect, adopt the waste and loss that this solution avoids in the first scheme, reduce cost, improve test accuracy rate simultaneously.But due to the fine structure of product to be measured, for pin centre distance 0.4mm or following time, needle guard diameter can only be used to be about 0.2mm, detachable needle diameter is about the probe of 0.1mm size, cause that short, loss in the serviceable life of test probe is large, the problem of easily bending and fracture, thus cause testing efficiency low, safeguard have high input, existing Production requirement can not be met.
Utility model content
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of pogo pin single action test probe, overcomes that test probe serviceable life is short, loss large, the problem of the less easy bending of detachable needle diameter and fracture.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of pogo pin single action test probe, comprise needle guard, probe and elastic component, the solid string configuration that described needle guard is formed in one, comprise needle guard head and needle tubing, described needle tubing end is provided with accommodating cavity for receiving elastic component and probe, described probe one end is interted needle guard and is connected with elastic component, and the other end is corresponding to be connected with switching pcb board, and needle guard head is corresponding to be connected with product to be measured.
Further, a kind of pogo pin single action test probe, the sectional dimension of described needle guard head is less than the sectional dimension of needle tubing, and needle tubing end is provided with accommodating cavity.
Further, a kind of pogo pin single action test probe, the length of described accommodating cavity is no more than 1/3rd of needle tubing length.
Further, a kind of pogo pin single action test probe, described accommodating cavity forms accommodation space, and its chamber outer wall is inwardly squeezed into protuberance, spacing for elastic component and probe.
Further, a kind of pogo pin single action test probe, one end that described probe is placed in accommodating cavity is provided with boss.
Further, a kind of pogo pin single action test probe, described elastic component is metal spring, is located between needle tubing and probe.
Further, a kind of pogo pin single action test probe, described probe can make described elastic component shrink under the thrust of its axis, thus makes the contraction in length of probe.
Further, a kind of pogo pin single action test probe, described needle guard head end is provided with claw type cone point for contacting with product to be measured.
Gain effect of the present utility model is, a kind of pogo pin single action test probe is provided, adopt the solid construction that needle guard head and needle tubing are formed in one, and unique connected mode that needle guard head contacts with product to be measured, substitute the way of contact of the movable probe head of existing probe, there is stronger warping resistance and Resisting fractre intensity, reduce the proportion of goods damageds of pogo pin test probe, improve serviceable life and the testing efficiency of probe in detecting.
Accompanying drawing explanation
Fig. 1 is the structural blast figure of a kind of pogo pin of the utility model single action test probe.
Fig. 2 is the cut-open view of a kind of pogo pin of the utility model single action test probe.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, for the structural blast figure of a kind of pogo pin of the utility model single action test probe, the probe of the present embodiment comprises needle guard 10, metal spring 20 and probe 30, the solid string configuration that described needle guard 10 is formed in one, comprise needle guard head 101 and needle tubing 102, the sectional dimension of needle guard head 101 is less than the sectional dimension of needle tubing 102, needle guard head 101 and needle tubing 102 junction form a step 1012, described needle guard head 101 contacts with the test point of product to be measured, be provided with claw type cone point 1011 and be convenient to contact, described needle tubing 102 end is provided with accommodating cavity (in figure depending on) for receiving metal spring 20 and probe 30, accommodating cavity accent outer wall is inwardly squeezed into protuberance, spacing for metal spring and probe, the length of accommodating cavity is no more than 1/3rd of needle tubing 102 length, described probe 30 one end contacts with switching pcb board, one end contacts with metal spring 20, be electrically connected with needle guard 10 and product to be measured further, the length of probe 30 is set to the length being greater than accommodating cavity, make one end of described probe 30 insert described accommodating cavity and contact with the metal spring 20 in described accommodating cavity.
In test process, test probe is arranged on specific needle plate, with the test point of correspondence product to be measured, described needle guard 10 is solid string configuration, needle guard head 101 and the product test point cantact to be measured of needle guard, probe 30 contacts with switching pcb board, further connecting test equipment.Test signal reaches switching pcb board by product to be measured through needle guard head 101-needle tubing 102-metal spring 20-probe 30, is sent to testing apparatus further and detects.The unique forms that the utility model embodiment adopts needle guard head to contact with product to be measured, substitute the way of contact of the movable probe head of existing probe, therefore in limited particular space, the pogo pin single action testing needle cover of the present embodiment has the sectional dimension larger than existing movable probe first watch, thus there is stronger warping resistance and Resisting fractre intensity, reduce the proportion of goods damageds of pogo pin test probe, improve serviceable life and the testing efficiency of probe in detecting.
With further reference to the cut-open view of a kind of pogo pin of Fig. 2 the utility model single action test probe, when producing, the solid elongate configuration that described needle guard 10 is formed in one, comprises the accommodating cavity 103 of needle guard head 101, needle tubing 102 and needle tubing end.During assembling, metal spring 20 and probe 30 are placed in accommodating cavity 103, form protuberance by inwardly extruding accommodating cavity accent outer wall, spacing for metal spring 20 and probe 30.After completing assembling, needle guard head 101 and product test point cantact to be measured, probe 30 one end contacts with switching pcb board, one end is inserted accommodating cavity 103 and is contacted with metal spring 20, along under the thrust of its axis, the metal spring 20 that probe 30 makes in accommodating cavity 103 shrinks, thus makes the contraction in length of probe.To realize close contact and the buffer action of test probe and product to be measured and card extender.
Therefore, by above-mentioned disclosure, the utility model embodiment provides a kind of pogo pin single action test probe, adopt the needle guard of solid construction and the way of contact of product to be measured, thus there is stronger warping resistance and Resisting fractre intensity, reduce the proportion of goods damageds of pogo pin test probe, improve serviceable life and the testing efficiency of probe in detecting.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.