CN115015597A - A shrapnel needle test module - Google Patents

Abstract

The invention discloses a shrapnel needle testing module, comprising an assembly mold base body, wherein a first cavity is arranged in the assembly mold base body, and a plurality of shrapnel needles are installed in the first cavity; the upper end of the assembly mold base body is provided with There is an upper cover, the lower end of the assembly mold base is provided with a lower cover, the upper tips of a plurality of shrapnel needles protrude from the assembly mold seat body and the upper cover in sequence, and the lower tips of a plurality of shrapnel needles are sequentially assembled from the assembly mold. The mold seat body and the lower cover protrude. The shrapnel needle test module solves the problem that the existing probe module is difficult to perform small-spacing tests.

Description

A shrapnel needle test module

technical field

The invention belongs to the technical field of semiconductor testing, and in particular relates to a shrapnel needle testing module.

Background technique

A BTB connector, a board-to-board connector, is a high-precision multi-contact connector used to connect the internal motherboard of an electronic device and an FPC (flexible circuit board). Generally, the BTB connector is provided with a female seat and a male seat. The female seat is connected to the PCB (printed circuit board) main board, and the male seat is electrically connected to the FPC and other components, so as to realize the electrical connection between the PCB and the FPC and other components.

At present, the test of BTB connector is generally carried out by the test probe module for contact test. During the test, the probe contacts with the connector contact to realize the test. However, because the probe is generally composed of three or four parts, the test process is prone to higher impedance. Large, unstable electrical signal transmission, short life, affecting the test results, leading to misjudgment; and the probes are generally arranged in a straight line when they are arranged in the module. In order to meet the impedance requirements, probes with the same effective cross-section The diameter of the shrapnel is larger than that of the shrapnel, and the space occupied by the module also increases accordingly, which cannot meet the requirements of small spacing test.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a shrapnel needle test module, which solves the problem that the existing probe module is difficult to perform small-pitch test.

In order to achieve the above-mentioned purpose, the technical solution adopted in the present invention is: a shrapnel needle test module, comprising an assembly mold base, wherein a first cavity is arranged in the assembly mold base, and a plurality of cavity is installed in the first cavity shrapnel needle; the upper end of the assembly mold base is provided with an upper cover, the lower end of the assembly mold base is provided with a lower cover, and the tips of the upper ends of a plurality of shrapnel needles protrude from the assembly mold base and the upper cover in sequence, and a plurality of The needle tip of the lower end of the shrapnel needle protrudes from the assembly die seat body and the lower cover in sequence.

As a preferred technical solution of the present invention, the upper cover and the lower cover are respectively fixed on the assembly mold base body by bolts.

As a preferred technical solution of the present invention, a second cavity is provided in the assembly mold base, a plurality of shrapnel needles are installed in the second cavity, and the needle tips of the upper ends of the multiple shrapnel needles are sequentially removed from the assembly mold. The base body and the upper cover protrude, and the needle tips of the lower ends of the plurality of shrapnel needles protrude from the base body and the lower cover of the assembling mold in sequence.

As a preferred technical solution of the present invention, a ceramic sheet is arranged between two adjacent elastic sheet needles.

As a preferred technical solution of the present invention, there is one needle tip at the upper end of the elastic sheet needle, and two needle points at the lower end of the elastic sheet needle.

As a preferred technical solution of the present invention, a mounting seat is arranged in the assembly mold base, and two double-ended probes are arranged in the mounting seat, and the two ends of each double-ended probe are The upper cover and the lower cover protrude.

As a preferred technical solution of the present invention, a plurality of card slots are provided inside the first cavity and the second cavity.

The beneficial effects of the present invention are as follows: (1) The shrapnel needle test module of the present invention has stable test data transmission, and can be tested for small-pitch BTB connectors, and at the same time, the impedance consistency, stability and test life are high during testing Compared with the existing test method; (2) a spring needle test module of the present invention, the spring needles are designed in two rows crossed at the front and the rear. The single-row in-line structure has a single-row design, and the cross can increase the thickness of the shrapnel as much as possible when designing the shrapnel, thereby increasing the service life of the shrapnel and reducing the impedance of the shrapnel; (3) A shrapnel needle test module of the present invention is designed with a shrapnel between the shrapnel. The detachable ceramic sheet is convenient and simple to assemble; (4) the shrapnel needle test module of the present invention, the detachable ceramic sheet is made of ceramic material, the insulation and high temperature resistance are better than the general plastic insulating sheet, the service life of the shrapnel is long, and the limit can be When it reaches more than 500,000 times, the impedance consistency of the shrapnel is better than that of the test probe, and the test stability and service life of the shrapnel module are higher than that of the test probe module, which saves the cost of material use; (5) The shrapnel needle test of the present invention For the module, the inner plane of the upper cover is higher than the upper end of the probe and the shrapnel, which can protect the probe and the shrapnel and prevent damage.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic structural diagram of a spring needle test module of the present invention;

FIG. 2 is an exploded view of a first perspective of a shrapnel needle test module of the present invention;

FIG. 3 is an exploded view of a second view angle of a shrapnel needle test module of the present invention;

FIG. 4 is an exploded view of a third viewing angle of a shrapnel needle test module according to the present invention;

FIG. 5 is a schematic structural diagram of a probe in a shrapnel needle test module of the present invention.

In the picture: 1. Assembly mold base, 2. Shrapnel needle, 201. Upper needle tip, 202. Lower needle tip, 3. Lower cover, 4. Upper cover, 5. Double-ended probe, 6. Ceramic sheet, 7. Section A cavity, 8. A second cavity, 9. Mounting seat, 10. Bolt.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, if it is described that the first and the second are only for the purpose of distinguishing technical features, it should not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating The order of the indicated technical features.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

As shown in FIG. 1 to FIG. 5 , a shrapnel needle test module of the present invention includes an assembly mold base 1 , and a first cavity 7 is arranged in the assembly mold base 1 , and a plurality of cavity 7 are installed in the first cavity 7 The shrapnel needle 2; the upper end of the assembly die base 1 is provided with an upper cover 4, the lower end of the assembly die base 1 is provided with a lower cover 3, and the upper end needle tips 201 of the plurality of shrapnel needles 2 are sequentially assembled from the assembly die base 1 and the upper cover 4. Protruding, the lower end needle tips 202 of the plurality of spring needles 2 protrude from the assembly mold base 1 and the lower cover 3 in sequence.

During assembly, a plurality of shrapnel needles 2 are first assembled in the first cavity 7 in the assembly mold base 1, and then the upper and lower covers 4 and 3 are respectively assembled on the upper and lower ends of the assembly mold base 1, and Make sure that the upper needle tip 201 and the lower needle tip 202 of the dome needle 2 protrude from the holes on the upper cover 4 and the lower cover 3 respectively.

When in use, the lower tip 201 of the shrapnel needle 2 is in contact with the test point of the test product, and the upper tip 201 of the shrapnel needle 2 is in contact with the sensor. When the module is pressed down as a whole, the test is conducted and the test data transmission is completed.

As shown in FIG. 1 , in a shrapnel needle test module of the present invention, the upper cover 4 and the lower cover 3 are respectively fixed on the assembly mold base 1 by bolts 10 , which is convenient for disassembly and assembly.

As shown in FIG. 1 , in a shrapnel needle test module of the present invention, a second cavity 8 is arranged in the assembly mold base 1 , and a plurality of shrapnel needles 2 are installed in the second cavity 8 . The upper needle tips of 2 protrude from the assembly mold base 1 and the upper cover 4 in sequence, and the lower needle tips 202 of the plurality of spring needles 2 protrude from the assembly mold base 1 and the lower cover 3 in sequence.

A plurality of shrapnel needles 2 are installed in the second cavity 8, which can increase the test contact area and further adapt to small-pitch and dense-point testing.

As shown in Fig. 3, in a spring needle test module of the present invention, a ceramic sheet 6 is arranged between two adjacent spring needles (2).

The detachable ceramic sheet is made of ceramic material, and its insulation and high temperature resistance are better than ordinary plastic insulating sheets, and the shrapnel has a long service life

As shown in FIG. 5 , in a spring needle test module of the present invention, there is one needle tip 201 at the upper end of the spring needle 2 , and two needle tips 202 at the lower end of the spring needle 2 . Different dome needles 2 can be used in a staggered arrangement.

As shown in FIG. 4 , in a shrapnel needle test module of the present invention, a mounting seat 9 is provided in the assembly mold base body 1 , and two double-ended probes 5 are provided in the mounting seat 9 , each double-ended probe Both ends of 5 protrude from the upper cover 4 and the lower cover 3 respectively.

According to specific usage scenarios, the double-headed probe 5 can be used to test large-spacing test points to expand its application range.

As shown in FIG. 2 , in a shrapnel needle test module of the present invention, a plurality of card slots are provided on the inner sides of the first cavity 7 and the second cavity 8 .

It is convenient for the shrapnel needle 2 to be clamped in the corresponding pair of clamping slots, and can realize precise assembly and positioning.

Therefore, compared with the prior art, the shrapnel needle test module of the present invention has stable test data transmission, and can be tested for small-pitch BTB connectors. At the same time, the impedance consistency, stability and test life during testing are higher than existing test methods. In the shrapnel needle test module of the present invention, the shrapnel needles are designed in two rows crossed at the front and the rear. When designing the shrapnel, the thickness of the shrapnel can be increased as much as possible, thereby increasing the service life of the shrapnel and reducing the impedance of the shrapnel. The shrapnel needle test module of the present invention is designed with detachable ceramic sheets between the shrapnel, which is convenient and simple to assemble. The limit can reach more than 500,000 times. The impedance consistency of the shrapnel is better than that of the test probe. The test stability and service life of the shrapnel module are higher than that of the test probe module, which saves the cost of material use. In the shrapnel needle test module of the present invention, the inner plane of the upper cover is higher than the upper ends of the probe and the shrapnel, which can protect the probe and the shrapnel and prevent damage.

The foregoing specification illustrates and describes several preferred embodiments of the invention, but as previously mentioned, it should be understood that the invention is not limited to the form disclosed herein and should not be construed as an exclusion of other embodiments, but may be used in a variety of other Combinations, modifications and environments are possible within the scope of the inventive concepts described herein, from the above teachings or from skill or knowledge in the relevant fields. However, modifications and changes made by those skilled in the art do not depart from the spirit and scope of the invention, and should all fall within the protection scope of the appended claims of the invention.

Claims (7)

1. A spring plate needle test module is characterized by comprising an assembly mold base body (1), wherein a first cavity (7) is arranged in the assembly mold base body (1), and a plurality of spring plate needles (2) are arranged in the first cavity (7); the upper end of assembly jig pedestal (1) is provided with upper cover (4), the lower extreme of assembly jig pedestal (1) is provided with lower cover (3), and upper end needle point (201) of a plurality of bullet piece needles (2) follow in proper order assembly jig pedestal (1) and upper cover (4) stretch out, and lower extreme needle point (202) of a plurality of bullet piece needles (2) follow in proper order assembly jig pedestal (1) and lower cover (3) stretch out.

2. The pogo pin testing module according to claim 1, wherein the upper cover (4) and the lower cover (3) are fixed to the assembling die holder body (1) by bolts (10), respectively.

3. The pogo pin testing module of claim 2, wherein a second cavity (8) is formed in the assembly die base (1), a plurality of pogo pins (2) are mounted in the second cavity (8), upper end pin points of the plurality of pogo pins (2) sequentially extend from the assembly die base (1) and the upper cover (4), and lower end pin points (202) of the plurality of pogo pins (2) sequentially extend from the assembly die base (1) and the lower cover (3).

4. The pogo pin test module of claim 3, wherein a ceramic plate (6) is arranged between two adjacent pogo pins (2).

5. The projectile needle testing module of claim 4, wherein there are one upper tip (201) of the projectile needle (2) and two lower tips (202) of the projectile needle (2).

6. The pogo pin test module of claim 5, wherein a mounting seat (9) is provided in the assembly die holder body (1), two double-ended probes (5) are provided in the mounting seat (9), and both ends of each of the double-ended probes (5) respectively protrude from the upper cover (4) and the lower cover (3).

7. The pogo pin testing module of claim 6, wherein a plurality of slots are provided inside the first cavity (7) and the second cavity (8).

Images