CN205333701U

CN205333701U - Miniature insulating probe

Info

Publication number: CN205333701U
Application number: CN201521125544.7U
Authority: CN
Inventors: 苏宝军
Original assignee: DONGGUAN LIANWEI ELECTRONIC Co Ltd
Current assignee: DONGGUAN LIANWEI ELECTRONIC Co Ltd
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-22
Anticipated expiration: 2025-12-31

Abstract

The utility model relates to a PCB test equipment technical field especially relates to a miniature insulating probe. The utility model discloses a miniature insulating probe, including electrically conductive needle body, still including insulating plastochondria, insulating plastochondria is fixed in the middle section of electrically conductive needle body, and the one end of electrically conductive needle body has set gradually insulating segment and needle point section along the axis direction of electrically conductive needle body, and the insulating segment sets up in one side of insulating plastochondria, and the surface of insulating segment is provided with the insulating layer, and the diameter of needle body of electrically conducting is 0.08~0.21mm. The utility model discloses a miniature insulating probe, template that insulating plastochondria can't pass PCB test fixture has improved PCB test fixture's reliability, can be used for testing volume PCB less, the high accuracy, the insulating layer avoids adjacent probe to take place the short circuit. The utility model discloses a miniature insulating probe, the during operation is connected well with the spring line, and the stable performance is difficult for between the probe taking place the short circuit, has improved PCB test fixture's reliability.

Description

A kind of miniature insulated probe

Technical field

This utility model relates to PCB and tests equipment technical field, particularly relates to a kind of miniature insulated probe。

Background technology

At present, the spring connecting wire that PCB test machine uses includes the test probe base body being integrally coiled into through spring wire, and electronic wire is welded in lower spring end。Test probe can be placed in probe card up and downly, it is in below PCB tested point, test probe activity is contacted with spring upper end, when PCB tests, probe card in upper and lower measurement jig extrudes to PCB mutually, make the test probe pin upper ends in probe card while touching circuit board test point, the lower end of test probe moves down the spring upper end base body touched in spring connecting wire, test electric current will by test machine winding displacement stream to electronic wire, by electronic wire turn of tidal stream to spring, after walking around spring, then flow into test probe thus realizing conductive test。The effect of spring is that moving down of probe of test is played cushioning effect, it is to avoid PCB stabbed by test probe。Existing probe, simple in construction, easily depart from spring, when probe arrangement is closeer, between probe, be susceptible to short circuit。

It is therefore desirable to provide a kind of probe not easily occurring with spring and departing from, it is not susceptible to short circuit between probe simultaneously。

Utility model content

The purpose of this utility model is in that to provide a kind of miniature insulated probe, dependable performance for the deficiencies in the prior art, not easily departs from spring, is not susceptible to short circuit simultaneously between probe。

For achieving the above object, the miniature insulated probe of one of the present utility model, including conduction needle body, also include insulation plastochondria, insulation plastochondria is fixed on the stage casing of conduction needle body, and one end of conduction needle body is disposed with insulating segment and needle point section along the axis direction of conduction needle body, and insulating segment is arranged at the side of insulation plastochondria, the surface configuration of insulating segment has insulating barrier, and the diameter of conduction needle body is 0.08 ~ 0.21mm。

Preferably, the diameter of described conduction needle body is 0.15mm。

Preferably, described insulating barrier is insulating lacquer layer。

Preferably, the length of described insulating segment is 5mm ~ 35mm。

Preferably, described insulation plastochondria is cylindrical。

Preferably, described insulation plastochondria is the insulation plastochondria of plastic material。

Preferably, the end of the other end of described conduction needle body is provided with anti-delinking part。

Preferably, described anti-delinking part is spherical。

Preferably, the side of described anti-delinking part is provided with plat part, and insulation plastochondria is coated on plat part。

The beneficial effects of the utility model: the miniature insulated probe of one of the present utility model, insulation plastochondria cannot pass the template of PCB test tool, avoid extracting probe from the template of PCB test tool and cause the spring of this probe and spring connecting wire to depart from, improve the reliability of PCB test tool；The diameter of conduction needle body is 0.12 ~ 0.18mm, it is possible to less, the high-precision PCB for test volume；Insulating barrier avoids adjacent probe to be short-circuited, and improves the reliability of PCB test tool。The miniature insulated probe of one of the present utility model, during work, is connected with spring connecting wire well, stable performance, is not susceptible to short circuit between probe, improve the reliability of PCB test tool。

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment one of the present utility model。

Fig. 2 is the cutting structural representation in A-A direction in Fig. 1。

Fig. 3 is the structural representation of embodiment two of the present utility model。

Fig. 4 is the cutting structural representation in B-B direction in Fig. 3。

Accompanying drawing labelling includes:

1 conduction needle body

11 insulating segment 12 needle point section 13 anti-delinking parts

14 plat part 15 insulating barriers

2 insulation plastochondrias。

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in detail。

Embodiment one。

As shown in Figure 1, 2, the miniature insulated probe of one of the present utility model, including conduction needle body 1, also include insulation plastochondria 2, insulation plastochondria 2 is fixed on the stage casing of conduction needle body 1, and one end of conduction needle body 1 is disposed with insulating segment 11 and needle point section 12 along the axis direction of conduction needle body 1, and insulating segment 11 is arranged at the side of insulation plastochondria 2, the surface configuration of insulating segment 11 has insulating barrier 15, and the diameter of conduction needle body 1 is 0.08 ~ 0.21mm。During work, a kind of one end of miniature insulated probe of the present utility model is connected with the spring body of spring connecting wire, insulating segment 11 and needle point section 12 electrically connect with PCB tested point after the template of PCB test tool, insulation plastochondria 2 cannot pass the template of PCB test tool, this probe is avoided to be pulled, avoid extracting probe from the template of PCB test tool and cause the spring of this probe and spring connecting wire to depart from, improve the reliability of PCB test tool；The diameter of conduction needle body 1 is 0.12 ~ 0.18mm, it is further preferred that the diameter of described conduction needle body 1 is 0.15mm, can be used for the PCB tested point that detection arrangement is closeer, it is possible to less, the high-precision PCB for test volume；Insulating barrier 15 avoids adjacent probe to be short-circuited, and improves the reliability of PCB test tool。The miniature insulated probe of one of the present utility model, during work, is connected with spring connecting wire well, stable performance, improves the reliability of PCB test tool。It is further preferred that described insulation plastochondria 2 is cylindrical。

As shown in Figure 1, 2, described insulating barrier 15 is insulating lacquer layer, and insulating lacquer layer is prone to processing, can be formed by traditional enamel-covered wire technique, and the miniature insulated probe of one of the present utility model, processing cost is low。It is further preferred that the length of described insulating segment 11 is 5mm ~ 35mm。

For the ease of processing, described insulation plastochondria 2 is the insulation plastochondria of plastic material, the insulation plastochondria of plastic material, can be formed by injection moulding, first conduction needle body 1 can be fixed on injection moulding die cavity, then melted plastics being injected die cavity, after cooling, die sinking can form miniature probe of the present utility model, and additionally the insulation plastochondria insulation effect of plastic material is good。The miniature insulated probe of one of the present utility model, it is simple to implementing, cost is low, dependable performance。

Embodiment two。

As shown in Figure 3,4, the present embodiment and embodiment one are different in that, the end of the other end of described conduction needle body 1 is provided with anti-delinking part 13。During work, the spring body interference fit of anti-delinking part 13 and external springs line, when spring body is connected with wire body, one end that anti-delinking part 13 is embedded in spring body can complete to connect, and joint efficiency is high, and stable connection, it is to avoid spring body and wire body get loose；The miniature insulated probe of one of the present utility model, it is simple to be connected with outside spring body, dependable performance, be not susceptible to fault。

As shown in Figure 3,4, described anti-delinking part 13 is in spherical。Spherical anti-delinking part 13 can by melting a bit of rear formation by one end of this probe。It is further preferred that described anti-delinking part 13 is in ellipsoid shape, the end of axiolitic anti-delinking part 13 has certain tapering, it is simple to spring body is socketed on anti-delinking part 13。A kind of miniature probe suitable in PCB test tool of the present utility model, it is simple to implementing, cost is low。

As shown in Figure 3,4, the side of described anti-delinking part 13 is provided with plat part 14, and insulation plastochondria 2 is coated on plat part 14。Moving axially of plastochondria 2 of insulation is played restriction effect by plat part 14, it is to avoid insulation plastochondria 2 gets loose with conduction needle body 1, improves the reliability of the miniature probe suitable in PCB test tool of the present utility model。

The remainder of the present embodiment is identical with embodiment one, unaccounted feature in the present embodiment, all adopts the explanation of embodiment one, is not discussed here。

Known this utility model is have above-described good characteristic in sum, is made it on using, promotes the usefulness not having in conventional art and have practicality, become the product of a great practical value。

Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this specification content should not be construed as restriction of the present utility model。

Claims

1. a miniature insulated probe, including conduction needle body (1), it is characterized in that: also include insulation plastochondria (2), the stage casing of conduction needle body (1) is fixed in insulation plastochondria (2), one end of conduction needle body (1) is disposed with insulating segment (11) and needle point section (12) along the axis direction of conduction needle body (1), insulating segment (11) is arranged at the side of insulation plastochondria (2), and the surface configuration of insulating segment (11) has insulating barrier (15), and the diameter of conduction needle body (1) is 0.08 ~ 0.21mm。

2. the miniature insulated probe of one according to claim 1, it is characterised in that: the diameter of described conduction needle body (1) is 0.15mm。

3. the miniature insulated probe of one according to claim 1, it is characterised in that: described insulating barrier (15) is insulating lacquer layer。

4. the miniature insulated probe of one according to claim 3, it is characterised in that: the length of described insulating segment (11) is 5mm ~ 35mm。

5. the miniature insulated probe of one according to claim 1, it is characterised in that: described insulation plastochondria (2) is cylindrical。

6. the miniature insulated probe of one according to claim 5, it is characterised in that: the insulation plastochondria that described insulation plastochondria (2) is plastic material。

7. the miniature insulated probe of one according to claim 1, it is characterised in that: the end of the other end of described conduction needle body (1) is provided with anti-delinking part (13)。

8. the miniature insulated probe of one according to claim 7, it is characterised in that: described anti-delinking part (13) are in spherical。

9. the miniature insulated probe of one according to claim 1, it is characterised in that: the side of described anti-delinking part (13) is provided with plat part (14), and insulation plastochondria (2) is coated on plat part (14)。