CN206208937U - A kind of earthing test probe - Google Patents

Abstract

The utility model is related to photovoltaic module testing field, and in particular to a kind of earthing test probe, including：Syringe needle and backshank, the needle tip are cone, and afterbody is cylinder, and the side of the needle tip is provided with recess and convex sword, and the recess and convex sword are alternately circumferentially arranged.The syringe needle of cone, enable the probe in insertion mounting hole of all sizes, so that the adaptability of probe is stronger, the setting of recess, so that probe is when mounting hole is inserted, the gas in mounting hole can be discharged by recess, it is to avoid air pressure is too high in mounting hole in insertion process, causing probe cannot be in close contact with hole wall is installed, and caused measurement is inaccurate.The setting of convex sword, can effectively pierce out the oxide-film of mounting hole metal surface, improve the accuracy of detection.

Description

A kind of earthing test probe

Technical field

The utility model is related to photovoltaic module testing field, and in particular to a kind of earthing test probe.

Background technology

Solar energy photovoltaic panel before dispatching from the factory, it is necessary to carry out earthing test, to ensure its security performance.Traditional detection mode Manually to connect photovoltaic panel and test machine, then tested, the inefficiency of the method.Current automation equipment is gradually Instead of the mode of manual inspection, when detection using automation equipment, probe is withstood on by photovoltaic module shell by cylinder In mounting hole, so that tester is connected with photovoltaic module shell, the test being grounded.However, due to photovoltaic module Outer cover metal material surface often has one layer of sull, after traditional probe is contacted with mounting hole, due to oxide-film Resistance is larger, influences whether measurement result so that testing result is inaccurate.

Utility model content

The purpose of this utility model, is in order in solving the problems, such as background technology, there is provided a kind of earthing test probe.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of earthing test probe, including：Syringe needle and backshank, the needle tip are cone, and afterbody is cylinder, institute The side for stating needle tip is provided with recess and convex sword, and the recess and convex sword are alternately circumferentially arranged.

The syringe needle of cone so that probe is inserted into mounting hole of all sizes so that the adaptability of probe It is stronger, the setting of recess so that when mounting hole is inserted, the gas in mounting hole can discharge probe by recess, it is to avoid slotting Air pressure is too high in mounting hole during entering, and causes probe to be in close contact with hole wall is installed, and caused measurement is inaccurate.Convex sword Setting, can effectively pierce out the oxide-film of mounting hole metal surface, improve the accuracy of detection.

Preferably, the thickness of the convex sword is outwards gradually reduced from needle central so that probe pushes process convexity sword Can effectively be pierced into installation hole wall, form good contact.

Preferably, the needle tip conical surface is additionally provided with ring cutting groove, the ring cutting groove by convex sword from top to bottom Be cut into multiple contact zones, due to probe detection when often with photovoltaic module shell rub so that detecting probe surface easily grinds Damage, set up multiple contact zones, in a contact zone serious wear, other contact zones can be used instead, improve probe Service life.

Preferably, the ring cutting groove and convex sword intersection form spine body, spine body, can be by during probe is pushed Oxide-film carries out pre- puncturing, it is ensured that the accuracy of detection.

Preferably, the ring cutting groove be between the upper and lower every concentric ring, concentric ring is shaped such that the contact zone of probe in axle To length it is consistent so that probe is easier to find good contact position.

Preferably, the ring cutting groove is spiral helicine notch, helix is relatively easy to processing.

Preferably, the backshank is provided with holddown spring so that the contact of probe and photovoltaic module shell mounting hole More preferably, detection accuracy is improved.

Preferably, the holddown spring of the backshank is internally provided with conducting rod, to be connected with testing equipment.

Preferably, holddown spring is internally provided with damper so that pushed in probe and damped with lifting, so as to protect Shield probe.

In sum, the beneficial effects of the utility model：

1. a kind of earthing test probe described in the utility model, when being contacted with photovoltaic module shell mounting hole, can be light Micro- puncture oxide-film, so that detecting instrument forms good electrical circuit with photovoltaic module shell, it is ensured that the standard of detection True property.

2. different photovoltaic module housings are fitted by a kind of earthing test probe described in the utility model, long service life Ying Xingqiang.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of the utility model embodiment 2；

Fig. 3 is use schematic diagram of the present utility model.

Specific embodiment

Specific examples below is only that, to explanation of the present utility model, it is not to limitation of the present utility model, sheet Art personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, But as long as all being protected by Patent Law in right of the present utility model.

The utility model is described in detail with embodiment below in conjunction with the accompanying drawings.

Embodiment 1：

According to Fig. 1, a kind of earthing test probe, including：Syringe needle 1 and backshank 2, the top of syringe needle 1 are cone, afterbody It is cylinder, the side at the top of syringe needle 1 is provided with recess 11 and convex sword 12, and recess 11 and convex sword 12 are alternately circumferentially arranged Row, the thickness of convex sword 12 is outwards gradually reduced from the center of syringe needle 1, and the top conical surface of syringe needle 1 is additionally provided with ring cutting groove 13, ring cutting Convex sword 12 is cut into multiple contact zones 14 by groove 13 from top to bottom, and ring cutting groove 13 forms spine body 15, ring with the intersection of convex sword 12 Grooving 13 is spiral helicine notch.

Backshank 2 is provided with holddown spring 21, and the holddown spring 21 of backshank 2 is internally provided with conducting rod 22, holddown spring 21 It is internally provided with damper.

According to Fig. 3, probe when in use, drops in the mounting hole b of photovoltaic module shell a, in pressure drop process, Convex sword 12 can puncture the oxide-film c of photovoltaic module shell so that photovoltaic module shell a can form good leading to testing equipment Road, improves detection accuracy.

Embodiment 2：

Be with the difference of above-described embodiment 1, according to Fig. 2, ring cutting groove 13 between the upper and lower every concentric ring, with one heart Ring-shaped causes that length of the contact zone 14 of probe in axial direction is consistent so that probe is easier to find good contact position.

Claims (9)

1. a kind of earthing test probe, it is characterised in that including：Syringe needle（1）And backshank（2）, the syringe needle（1）Top is circular cone Shape, afterbody is cylinder, the syringe needle（1）The side at top is provided with recess（11）With convex sword（12）, the recess（11）With Convex sword（12）Alternately circumferentially arrange.

2. a kind of earthing test probe according to claim 1, it is characterised in that the convex sword（12）Thickness from syringe needle （1）Center is outwards gradually reduced.

3. a kind of earthing test probe according to claim 2, it is characterised in that the syringe needle（1）Top conical surface It is additionally provided with ring cutting groove（13）, the ring cutting groove（13）By convex sword（12）Multiple contact zones are cut into from top to bottom（14）.

4. a kind of earthing test probe according to claim 3, it is characterised in that the ring cutting groove（13）With convex sword（12） Intersection forms spine body（15）.

5. a kind of earthing test probe according to claim 4, it is characterised in that the ring cutting groove（13）For between the upper and lower every Concentric ring.

6. a kind of earthing test probe according to claim 3, it is characterised in that the ring cutting groove（13）For spiral helicine Notch.

7. a kind of earthing test probe according to claim 5 or 6, it is characterised in that the backshank（2）It is provided with compression Spring（21）.

8. a kind of earthing test probe according to claim 7, it is characterised in that the backshank（2）Holddown spring （21）It is internally provided with conducting rod（22）.

9. a kind of earthing test probe according to claim 8, it is characterised in that holddown spring（21）It is internally provided with resistance Buddhist nun's device.