CN211856655U - Joint for wire needle test fixture - Google Patents

Abstract

The utility model discloses a line needle is joint for test fixture, including base plate and needle file, set up positioning groove on the base plate, on positioning groove was located to the needle file, be equipped with a plurality of line needles on the needle file, the line needle has the sense terminal, and the sense terminal stretches out the positioning groove outside, and the tip that the sense terminal was kept away from to the line needle is established on the base plate and with winding displacement electric connection. The utility model discloses it is more convenient to make the bonding wire preparation, and the mounted position precision is higher, is favorable to reducing the risk with equipment contact failure.

Description

Joint for wire needle test fixture

Technical Field

The utility model relates to an electrical property test equipment especially relates to line needle test fixture is with connecting.

Background

At present, ox horn joint among the test fixture, owing to adopt ox horn shell, the bonding wire preparation is more troublesome, in addition because the mounted position precision is not high, leads to with equipment contact failure's risk higher.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a line needle is joint for test fixture, can make the bonding wire preparation more convenient, and the mounted position precision is higher, is favorable to reducing the risk with equipment contact failure.

The purpose of the utility model is realized by adopting the following technical scheme:

the joint for the wire needle test fixture comprises a base plate and a needle seat, wherein a positioning groove is formed in the base plate, the needle seat is arranged on the positioning groove, a plurality of wire needles are arranged on the needle seat, each wire needle is provided with a detection end, the detection ends stretch out of the positioning groove, and the end parts, far away from the detection ends, of the wire needles are arranged on the base plate and electrically connected with a flat cable.

Furthermore, a plurality of mounting through holes are formed in the needle base and used for the thread needle to penetrate through.

Further, the shape of the needle seat is square.

Further, the substrate is an aluminum plate.

Furthermore, the end part of the wire needle far away from the detection end is connected with the substrate and the flat cable in a welding mode.

Further, the thread needles are parallel to each other.

Further, the thread needle is perpendicular to the needle seat.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the wire needle is inserted and is established on the installation through-hole of needle file, the tip of keeping away from the sense terminal with the wire needle passes through welded mode and is connected with base plate, winding displacement, the needle file is installed in the positioning groove on the base plate, through the preparation of integration, make this wire needle test fixture with joint design simpler, the bonding wire preparation is more convenient, work efficiency is higher, be favorable to improving bonding wire speed, the mounted position precision is higher, the work fault rate descends, the cost also corresponding reduction, and the contact nature is better, be favorable to reducing the risk with equipment contact failure.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the present invention;

in the figure: 1. a substrate; 2. a needle seat; 3. a thread needle; 4. a positioning groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The joint for the wire needle test fixture shown in fig. 1 and 2 comprises a substrate 1 and a needle seat 2, wherein a positioning groove 4 is formed in the substrate 1, the needle seat 2 is arranged on the positioning groove 4, a plurality of wire needles 3 are arranged on the needle seat 2, each wire needle 3 is provided with a detection end, the detection end extends out of the positioning groove 4, and the end part, far away from the detection end, of each wire needle 3 is arranged on the substrate 1 and electrically connected with a flat cable.

In this embodiment, the test fixture may be an electrical performance test fixture of a semiconductor device, such as a PCB test fixture, and the connector provided in this embodiment may be applied to the test fixture to communicate with the detection circuit.

Specifically, as shown in fig. 1 and 2, the needle holder 2 is provided with a plurality of mounting through holes for the threading needle 3 to pass through.

As a preferred embodiment, the hub 2 is square in shape. Compare with prior art's ox horn joint, through the aforesaid setting for this line needle test fixture is with simple structure of connecting is favorable to improving bonding wire speed.

In this embodiment, the mounting 2 is preferably an insulating plate made of FR-4 grade material.

In a preferred embodiment, the substrate 1 is an aluminum plate.

Further, as shown in fig. 1 and 2, the end of the needle 3 away from the detection end is connected to the substrate 1 and the flat cable by soldering.

It should be noted that, as shown in fig. 2, the plurality of needles 3 are parallel to each other.

It is worth mentioning that, as shown in fig. 2, each thread needle 3 is perpendicular to the needle seat 2.

In a more preferred embodiment, as shown in fig. 2, the plurality of needles 3 are parallel to each other and perpendicular to the needle holder 2.

In the present embodiment, as shown in fig. 1, a positioning groove 4 is formed on the base plate 1 for fixing the needle holder 2, and as a preferred embodiment, after the needle holder 2 is placed in the positioning groove 4, further, the needle holder 2 can be fixed on the base plate 1 by means of screw connection or the like.

To sum up, as shown in fig. 1 and fig. 2, the thread needle 3 is inserted and is established on the installation through-hole of needle file 2, the tip of keeping away from the sense terminal with thread needle 3 passes through welded mode and is connected with base plate 1, the winding displacement, needle file 2 is installed in positioning groove 4 on base plate 1, through the preparation of integration, make this thread needle test fixture with joint structure simpler, the bonding wire preparation is more convenient, work efficiency is higher, be favorable to improving the bonding wire speed, the mounted position precision is higher, the work fault rate descends, the cost also correspondingly reduces, and the contact nature is better, be favorable to reducing the risk with equipment contact failure.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (7)

1. Line needle is joint for test fixture, its characterized in that: including base plate and needle file, set up positioning groove on the base plate, the needle file is located on positioning groove, be equipped with a plurality of line needles on the needle file, the line needle has the sense terminal, the sense terminal stretches out the positioning groove outside, the tip that the sense terminal was kept away from to the line needle is established on the base plate and with winding displacement electric connection.

2. The joint for the wire needle test fixture according to claim 1, wherein: a plurality of mounting through holes are formed in the needle base and used for the threading needle to penetrate through.

3. The joint for wire needle test fixture according to claim 1 or 2, wherein: the needle seat is square.

4. The joint for the wire needle test fixture according to claim 1, wherein: the base plate is an aluminum plate.

5. The joint for wire needle test fixture according to claim 1 or 4, wherein: the end part of the wire needle far away from the detection end is connected with the substrate and the flat cable in a welding mode.

6. The joint for the wire needle test fixture according to claim 1, wherein: the thread needles are parallel to each other.

7. The joint for wire needle test fixture according to claim 1 or 6, wherein: the thread needle is vertical to the needle seat.

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