CN215678640U - Fine-spacing elastic sheet pin module - Google Patents

Abstract

The utility model belongs to the technical field of test fixtures, and relates to a micro-space spring plate pin module, which comprises: the PCB comprises a base, a PCB bottom plate, an upper cover plate, a floating plate, a first elastic sheet needle assembly and a second elastic sheet needle assembly, wherein the floating plate is sequentially installed on the upper cover plate and the PCB bottom plate from top to bottom, a mounting groove for mounting a product to be tested is formed in the floating plate, a needle groove is further formed in the bottom of the mounting groove, one end of the first elastic sheet needle assembly and one end of the second elastic sheet needle assembly are fixed on the PCB bottom plate, the other end of the first elastic sheet needle assembly and the other end of the second elastic sheet needle assembly sequentially penetrate through the upper cover plate and the floating plate and are located in the needle groove, and the first elastic sheet needle assembly and the second elastic sheet needle assembly are of the same structure. The test device has the advantages that the problem that the probe is easy to damage when a to-be-connected connector is tested can be solved, and the test of the small-distance connector on the PCB can be completed.

Description

Fine-spacing elastic sheet pin module

Technical Field

The utility model belongs to the technical field of test jigs, and relates to a micro-space spring piece needle module.

Background

The conventional Pogo Block module is adopted by the testing equipment of the existing jig for testing, after the connector of the PCB to be tested is placed, the flip structure is directly pressed on the connector of the PCB to be tested, and then the flip structure is connected with the testing probe for testing; however, in the testing process, because the probe on the Pogo Block module is connected with the connector of the PCB, on one hand, in order to ensure that the testing result of the connector on the PCB can be more accurate, the used probe is of a slender structure, so that the probe is easily deformed and damaged; and to the connector of little interval contact, for example the connector is 0.175 mm's super little interval type connector, adopt Pogo Block module because structural constraint, Pogo Block module probe interval is greater than the contact interval on the connector to lead to conventional Pogo Block module can not satisfy the test requirement to little, the little interval contact connector of spatial position.

Disclosure of Invention

The utility model aims to provide a micro-space spring piece pin module aiming at the defects of the prior art, which can not only solve the problem that a probe is easy to damage when a to-be-connected connector is tested, but also can finish the test of a small-space connector on a PCB.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a fine pitch pogo pin module comprising: the PCB comprises a base, a PCB bottom plate, an upper cover plate, a floating plate, a first elastic sheet needle assembly and a second elastic sheet needle assembly, wherein the floating plate is sequentially installed on the upper cover plate and the PCB bottom plate from top to bottom, a mounting groove for installing a product to be tested is formed in the floating plate, a needle groove is further formed in the bottom of the mounting groove, one end of the first elastic sheet needle assembly and one end of the second elastic sheet needle assembly are fixed on the PCB bottom plate, the other end of the first elastic sheet needle assembly and the other end of the second elastic sheet needle assembly sequentially penetrate through the upper cover plate and the floating plate and are located in the needle groove, the first elastic sheet needle assembly and the second elastic sheet needle assembly are of the same structure, and the first elastic sheet needle assembly and the second elastic sheet needle assembly are symmetrically arranged with a central axis in the vertical direction on the base.

Further, the needle groove includes: the first needle groove and the second needle groove are located on one side of the first needle groove, a preset interval is formed between the first needle groove and the second needle groove, the position of the first needle groove is matched with the position of the first elastic sheet needle assembly, and the position of the second needle groove is matched with the position of the second needle groove.

Further, the first shrapnel needle assembly comprises: the PCB comprises a needle block and a plurality of elastic sheet needles, wherein the elastic sheet needles are uniformly arranged on the needle block, the first ends of the elastic sheet needles face the PCB base plate to extend to form first electric connection portions, the first electric connection portions are fixed to the PCB base plate, the second ends of the elastic sheet needles face the floating piece to extend to form second electric connection portions, the second electric connection portions are located in first needle grooves, and the first ends are opposite to the second ends.

Furthermore, a gap is arranged between the first electric connection part and the bottom of the needle block.

Further, the floating plate is mounted on the upper cover plate through a first elastic member.

Further, the clip pin module further comprises: and the guide post penetrates through the floating plate, the upper cover plate and the PCB bottom plate in sequence to be fixed with the base.

Furthermore, the elastic sheet needle and the needle block form an L-shaped structure.

Furthermore, a second elastic piece is further installed on the end face, far away from the floating plate, of the base.

Further, the clip pin module further comprises: the switching flexible flat cable is connected with the PCB bottom plate.

Furthermore, the distance between two adjacent spring sheet needles on the same needle block is the same as the distance between two adjacent contacts on the connector to be tested.

The utility model has the beneficial effects that:

by arranging the first elastic sheet needle assembly and the second elastic sheet needle assembly, the first elastic sheet needle assembly and the second elastic sheet needle assembly are of the same structure, and the first elastic sheet needle assembly and the second elastic sheet needle assembly are symmetrically arranged, so that the elastic sheet needle can be contacted with a connector of a PCB to be tested when the connector of the PCB to be tested is tested, and the condition that a probe is bent to cause the damage of the probe is avoided when a Pogo Block module adopts a probe test; the pin groove is formed by the first pin groove and the second pin groove, so that the first elastic sheet pin assembly and the second elastic sheet pin assembly can be prevented from contacting to influence the circuit board test; by arranging the needle block and the elastic sheet needles, when the elastic sheet needles are pressed downwards, the pressing force can act on the needle block, so that the elastic sheet needles are prevented from being easily damaged; the floating plate is arranged on the upper cover plate through the first elastic piece, so that the spring plate needle can be positioned in the needle groove when not tested, and the possibility of damage of the spring plate needle due to exposure when not tested is reduced; when the elastic sheet needle is excessively pressed down, the gap can enable the needle block and the first electric connection part to slightly deform to play a role in buffering, so that the possibility that the PCB bottom plate is damaged due to the fact that the first electric connection part presses the PCB bottom plate hard is reduced; the elastic sheet needle and the needle block integrally form an L-shaped structure, so that the integral structures of the first elastic sheet needle and the second elastic sheet needle assembly are more stable, and the elastic sheet needle is prevented from being easily bent; through setting up two adjacent contacts on the connector that awaits measuring of the interval with two adjacent shell fragment needles on the same needle piece into same interval, the position of shell fragment needle and the position one-to-one of contact promptly can guarantee that first shell fragment needle module and second shell fragment needle module can realize the butt joint with the booth apart from the connector to solve conventional Pogo Block module and can not satisfy the problem to the test requirement of spatial position little, booth apart from the contact connector.

Drawings

FIG. 1 is a schematic diagram of an explosive structure of the present invention;

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a schematic cross-sectional view of the present invention;

FIG. 4 is a schematic structural view of a first shrapnel needle assembly of the present invention;

fig. 5 is a schematic structural view of the floating plate of the present invention.

The labels in the figure are: 100-a base; 200-a PCB backplane; 300-an upper cover plate; 400-floating plate, 410-mounting groove; 420-needle groove, 421-first needle groove, 422-second needle groove, 500-first shrapnel needle assembly, 510-needle block, 511-notch, 520-shrapnel needle, 521-first electric connection part, 522-second electric connection part; 600-a second shrapnel needle assembly; 700-a first resilient member; 800-a guide post; 900-switching flexible flat cable; 1000-connector.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, a fine pitch spring plate pin module comprises: the base 100, the PCB baseplate 200, the upper cover plate 300, the floating plate 400, the first pin assembly 500 and the second pin assembly 600, the floating plate 400, the upper cover plate 300 and the PCB baseplate 200 are sequentially mounted on the base 100 from top to bottom, the floating plate 400 is provided with a mounting groove 410 for mounting a product to be tested, the bottom of the mounting groove 410 is further provided with a pin groove 420, one end of each of the first pin assembly 500 and the second pin assembly 600 is fixed on the PCB baseplate 200, the other end of each of the first pin assembly 500 and the second pin assembly 600 sequentially penetrates through the upper cover plate 300 and the floating plate 400 to be positioned in the pin groove 420, the first pin assembly 500 and the second pin assembly 600 are of the same structure, and the first pin assembly 500 and the second pin assembly 600 are symmetrically arranged by a central axis in the vertical direction on the base 100, in the embodiment, the floating plate 400 is mounted on the upper cover plate 300 through the first elastic member 700, specifically, the first elastic member 700 is a spring.

In the above embodiment, the needle groove 420 includes: first needle groove 421 and be located the second needle groove 422 of first needle groove 421 one side, have between first needle groove 421 and the second needle groove 422 and predetermine the interval, and is concrete, predetermine the size of interval and the interval between first shell fragment needle subassembly 500 and the second shell fragment needle subassembly 600 and suit, and the position of first needle groove 421 suits with the position of first shell fragment needle subassembly 500, and the position of second needle groove 422 suits with the position of second needle groove 422.

In the above embodiment, the first shrapnel needle assembly 500 comprises: needle piece 510 and a plurality of shell fragment needles 520, a plurality of shell fragment needles 520 evenly locate on needle piece 510, and the first end of shell fragment needle 520 extends towards PCB bottom plate 200 has first electric connection portion, first electric connection portion is fixed with PCB bottom plate 200, the second end of shell fragment needle 520 extends towards the floating piece has second electric connection portion, second electric connection portion is located first needle groove 421, first end is relative with the second end, further, because first shell fragment needle subassembly 500 is the same structure with second shell fragment needle subassembly 600, therefore second shell fragment needle subassembly 600 also comprises needle piece 510 and a plurality of shell fragment needles 520, different with the above-mentioned mounted position, second electric connection portion on second shell fragment needle 520 and second needle groove 422 at this moment, in this embodiment, shell fragment needle 520 constitutes with needle piece 510 and is the L type structure.

In the above embodiment, a gap 511 is further provided between the first electrical connection portion and the bottom of the pin block 510.

In the above embodiment, the shrapnel pin 520 module further comprises: guide posts 800, guide posts 800 pass and pass floating plate 400, upper cover plate 300 and PCB bottom plate 200 in proper order and fix with base 100, wherein, guide posts 800 can play the effect of direction, prevent that floating plate 400 from taking place cheaply when moving about, and in this embodiment, guide posts 800 are provided with one pair, and two relative settings of guide posts 800.

In the above embodiment, the second elastic member is further attached to the end surface of the base 100 remote from the floating plate 400.

In the above embodiment, the shrapnel pin 520 module further comprises: the adapting flexible flat cable 900, the adapting flexible flat cable 900 is connected with the PCB bottom board 200.

In the above embodiment, the pitch of two adjacent contacts on the connector 1000 to be tested, which is provided with two adjacent spring piece pins 520 on the same pin block 510, is the same.

The working principle is as follows: during testing, a product to be tested is placed in the mounting groove 410, then the floating piece is pressed downwards, and the floating piece is mounted on the upper cover plate 300 through the elastic piece, so that the elastic piece needles 520 on the first elastic piece needle assembly 500 and the elastic piece needles 520 on the second elastic piece needle assembly 600 can move towards the connector 1000 relative to the floating plate 400, and because the distances between two adjacent contacts on the connector 1000 to be tested of two adjacent elastic piece needles 520 on the same needle block 510 are the same, the elastic piece needles 520 on the first elastic piece needle assembly 500 and the elastic piece needles 520 on the second elastic piece needle assembly 600 can be stably connected with the connector 1000 to be tested, so that the testing of the product to be tested is realized.

The above-described embodiments are only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a fine-pitch's bullet piece needle module which characterized in that includes: the elastic pin comprises a base (100), a PCB bottom plate (200), an upper cover plate (300), a floating plate (400), a first elastic pin assembly (500) and a second elastic pin assembly (600), wherein the floating plate (400), the upper cover plate (300) and the PCB bottom plate (200) are sequentially installed on the base (100) from top to bottom, a mounting groove (410) for installing a product to be tested is formed in the floating plate (400), a pin groove (420) is further formed in the bottom of the mounting groove (410), one end of each of the first elastic pin assembly (500) and the second elastic pin assembly (600) is fixed on the PCB bottom plate (200), the other end of each of the first elastic pin assembly (500) and the second elastic pin assembly (600) sequentially penetrates through the upper cover plate (300) and the floating plate (400) and is located in the pin groove (420), the first elastic pin assembly (500) and the second elastic pin assembly (600) are of the same structure, and the first shrapnel needle assembly (500) and the second shrapnel needle assembly (600) are symmetrically arranged by a central axis in the vertical direction on the base (100).

2. A micro-spaced pogo pin module according to claim 1, wherein the pin slot (420) includes: the elastic needle assembly comprises a first needle groove (421) and a second needle groove (422) located on one side of the first needle groove (421), a preset distance is reserved between the first needle groove (421) and the second needle groove (422), the position of the first needle groove (421) is matched with the position of the first elastic needle assembly (500), and the position of the second needle groove (422) is matched with the position of the second needle groove (422).

3. A micro-spaced pogo pin module according to claim 2, wherein the first pogo pin assembly (500) comprises: needle piece (510) and a plurality of bullet piece needle (520), a plurality of bullet piece needle (520) evenly locate on needle piece (510), just the first end orientation of bullet piece needle (520) PCB bottom plate (200) is extended and is had first electric connection portion (521), first electric connection portion (521) with PCB bottom plate (200) are fixed, the second end orientation of bullet piece needle (520) the floating member extends and has second electric connection portion (522), second electric connection portion (522) are located in first needle groove (421), first end with the second end is relative.

4. The fine-pitch pogo pin module according to claim 3, wherein a gap (511) is further provided between the first electrical connection portion (521) and the bottom of the pin block (510).

5. The fine-pitch pogo pin module according to claim 4, wherein the floating plate (400) is mounted to the upper cover plate (300) by a first elastic member (700).

6. A micro-spaced pogo pin module according to claim 5, wherein the pogo pin (520) module further comprises: and the guide post (800) penetrates through the floating plate (400), the upper cover plate (300) and the PCB bottom plate (200) in sequence and is fixed with the base (100).

7. The fine pitch projectile needle module of claim 1 wherein said projectile needles (520) and said needle block (510) are configured in an L-shaped configuration.

8. A fine-pitch pogo pin module according to claim 1, wherein a second elastic member is further installed on an end surface of the base (100) away from the floating plate (400).

9. A micro-spaced pogo pin module according to claim 3, wherein the pogo pin (520) module further comprises: the switching flexible flat cable (900), the switching flexible flat cable (900) with PCB bottom plate (200) is connected.

10. The fine-pitch pogo pin module of claim 3, wherein a pitch between two neighboring pogo pins (520) on the same pin block (510) is the same as a pitch between two neighboring contacts on the connector (1000) to be tested.

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