CN214750461U

CN214750461U - Spring plate needle

Info

Publication number: CN214750461U
Application number: CN202023227505.1U
Authority: CN
Inventors: 付盼红; 张飞龙; 张明海; 申啸
Original assignee: Weinan Hi Tech Zone Wood King Technology Co Ltd
Current assignee: Weinan Muwang Intelligent Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-16
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a shell fragment needle, include: the needle head is of a plate-shaped structure extending along the longitudinal direction, one end of the needle head is connected with the head part of the elastic connecting part, and the other end of the needle head is provided with a contact head; the elastic connecting part comprises a first elastic connecting part and a second elastic connecting part which are longitudinally connected and have the same structure, the first elastic connecting part is connected with one end of the needle head, the first elastic connecting part is provided with a downward first bulge, the second elastic connecting part is provided with an upward second bulge, and the first bulge corresponds to the second bulge in position; the rigid connecting part is connected with the second elastic connecting part, and a contraction groove is formed in the tail part of the rigid connecting part; and the needle tail is connected with the rigid connecting part and is arranged in the shrinkage groove. The utility model discloses through the elastic shrinkage of elastic connection portion and needle tail when the atress is used, can avoid taking place the book to decrease between each parts, ensure that the product is difficult to take place to damage, increase of service life ensures the exactness of test result simultaneously.

Description

Spring plate needle

Technical Field

The utility model belongs to the technical field of electronic test equipment, specifically speaking relates to a shell fragment needle.

Background

Probes, as a commonly used electronic testing tool, are currently being administered in a variety of applications. For the PCB, after the components are mounted on the PCB, the circuit of each component needs to be detected by using a probe to determine whether the electronic performance of the component is effectively verified, thereby ensuring the quality of the product.

With the development of technology, the components become more and more fine, and the volume of the probe is improved to be smaller and smaller with the development of the probe. The existing probe is mostly a spring probe and mainly formed by assembling a spring needle head and a needle tube, if the force of an operator is too large during use, the needle head, the spring and the needle tube can be seriously deformed, the existing probe cannot be in good contact with a tested component and a PCB (printed circuit board), and then the accuracy of a test result is difficult to ensure, the existing probe can be damaged when the existing probe is serious, and the service life of the probe is greatly shortened.

Disclosure of Invention

The utility model aims at providing a shell fragment needle has solved current spring probe and has had easy deformation, is difficult to ensure the problem of test result exactness.

In order to solve the technical problem, the utility model discloses a shrapnel needle, which is an integrally formed shrapnel structure formed by processing a sheet metal shrapnel, and comprises a needle head, an elastic connecting part, a rigid connecting part and a needle tail which are sequentially arranged and connected along the longitudinal direction of the shrapnel structure;

the needle head is of a plate-shaped structure extending longitudinally along the elastic sheet structure, one end of the needle head is connected with the head part of the elastic connecting part, and the other end of the needle head is provided with a contact head;

the elastic connecting part comprises a first elastic connecting part and a second elastic connecting part which are longitudinally arranged along the elastic sheet structure and are connected with each other and have the same structure, the first elastic connecting part is connected with one end of the needle head, the first elastic connecting part is provided with a downward first bulge, the second elastic connecting part is provided with an upward second bulge, and the first bulge corresponds to the second bulge in position;

the rigid connecting part is connected with the second elastic connecting part, and a contraction groove is formed in the tail part of the rigid connecting part;

and the needle tail is connected with the rigid connecting part and is arranged in the shrinkage groove.

The technical scheme of the utility model, still have following characteristics:

further, along the horizontal of shell fragment structure, the one end that is close to the syringe needle between first elastic connection portion and the second elastic connection portion is the opening distribution, and the one end that deviates from the syringe needle between first elastic connection portion and the second elastic connection portion is connected.

Furthermore, the first elastic connecting portion is of a hollow structure formed by sequentially connecting a first vertical plate, a first transverse plate, a second vertical plate and a second transverse plate end to end, the longitudinal extending end of the first vertical plate is connected with the needle head, and a downward first bulge is arranged on the second transverse plate.

Further, the first and second cross plates are obliquely arranged.

Furthermore, the second elastic connecting portion is of a hollow structure formed by sequentially connecting a third vertical plate, a third transverse plate, a fourth vertical plate and the fourth transverse plate end to end, a longitudinal extending end of the fourth vertical plate is connected with a longitudinal extending end of the second vertical plate, the longitudinal extending end of the third vertical plate is connected with the rigid connecting portion, an upward second protrusion is arranged on the third transverse plate, and the second protrusion and the first protrusion are arranged oppositely.

Further, the third and fourth cross plates are diagonally arranged.

Furthermore, the rigid connection part comprises a rigid connection transverse plate, a first rigid connection vertical plate and a second rigid connection vertical plate are connected to the left end and the right end of the rigid connection transverse plate respectively to form a shrinkage groove with a downward opening, and the longitudinal extension end of the first rigid connection vertical plate is connected with the longitudinal extension end of the third vertical plate.

Furthermore, the needle tail comprises two fifth transverse plates in the same plane, one ends of the two fifth transverse plates are connected through a fifth vertical plate, and the other ends of the two fifth transverse plates are connected to the inner sides of the first rigid connecting vertical plate or the second rigid connecting vertical plate.

Further, the cross section of the contact is B-shaped, P-shaped, W-shaped, M-shaped, T-shaped, H-shaped, F-shaped, O-shaped, D-shaped or R-shaped.

Further, the contact head is provided with one or more.

Compared with the prior art, the utility model discloses can obtain including following technological effect:

1) the utility model discloses a spring plate needle, its syringe needle and needle tail link together through elastic connecting portion and rigid connecting portion, needle tail and PCB circuit board elastic contact during the use, syringe needle and the contact of components and parts under test to can take place certain elastic deformation between syringe needle and the components and parts under the effect of elastic connecting portion, ensure that syringe needle and to be tested between the components and parts, can form good contact between needle tail and the PCB circuit board, ensure the exactness of test result;

2) compared with the assembly mode of a spring probe, the elastic sheet needle has the advantages that the needle head, the elastic connecting part, the rigid connecting part and the needle tail are fixedly connected together, and when the elastic connecting part and the needle tail are elastically contracted under the action of stress, the parts can be prevented from being broken and damaged, the product is ensured not to be easily damaged, and the service life is prolonged;

3) the utility model discloses a spring plate needle, first elastic connecting portion are equipped with decurrent first arch, and second elastic connecting portion are equipped with ascending second arch, and first arch and the position of second arch correspond, play limiting displacement on the one hand, prevent that when the syringe needle atress compresses down, elastic connecting portion overvoltage damages the shell fragment structure, leads to the shell fragment life-span to reduce; on the other hand, the conducting effect is achieved, when the elastic connecting portion is compressed downwards, the first protrusion and the second protrusion are in mutual contact, the effects of conducting current and reducing resistance can be achieved, and the correctness of a test result is ensured.

4) The utility model discloses a shell fragment needle, its overall structure is simple, easily makes, and the cost of manufacture is lower, has better marketing application prospect.

Of course, it is not necessary for any product of the present invention to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

FIG. 1 is a schematic view of a configuration of the projectile needle of the present invention;

fig. 2 is a schematic view of another structure of the projectile needle of the present invention.

The needle comprises a needle head 1, a needle head 2, a contact head 3, a first elastic connecting part 31, a first vertical plate 32, a first transverse plate 33, a second vertical plate 34, a second transverse plate 35, a first protrusion 4, a second elastic connecting part 41, a third vertical plate 42, a third transverse plate 43, a fourth vertical plate 44, a fourth transverse plate 45, a second protrusion 5, a rigid connecting part 51, a rigid connecting transverse plate 52, a first rigid connecting vertical plate 53, a second rigid connecting vertical plate 54, a contraction groove 6, a needle tail 61, a fifth transverse plate 62, a fifth vertical plate.

Detailed Description

The following embodiments will be described in detail with reference to the accompanying drawings, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. 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," "second," etc. 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 otherwise specified.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, a fixed connection, a removable connection, or an integral connection or a removable arrangement. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

The utility model discloses a shrapnel needle, as shown in figure 1, which is an integrally formed shrapnel structure formed by processing a sheet metal shrapnel, and comprises a needle head 1, an elastic connecting part, a rigid connecting part 5 and a needle tail 6 which are sequentially arranged and connected along the longitudinal direction of the shrapnel structure;

the needle head 1 is of a plate-shaped structure extending longitudinally along the elastic sheet structure, one end of the needle head 1 is connected with the head part of the elastic connecting part, and the other end of the needle head 1 is provided with a contact head 2;

the elastic connecting part comprises a first elastic connecting part 3 and a second elastic connecting part 4 which are longitudinally arranged and connected along a spring plate structure and have the same structure, the first elastic connecting part 3 is connected with one end of the needle head 1, the first elastic connecting part 3 is provided with a downward first bulge 35, the second elastic connecting part 4 is provided with an upward second bulge 45, the positions of the first bulge 35 and the second bulge 45 correspond to each other, and the first bulge 35 and the second bulge 45 are matched with each other to play a role in limiting and conducting;

the rigid connecting part 5 is connected with the second elastic connecting part 4, and the tail part of the rigid connecting part 5 is provided with a contraction groove 54;

and a needle tail 6 connected with the rigid connecting part 5 and arranged in the contraction groove 54.

When testing the components on the PCB, the pin tail 6 is contacted with the PCB, and the pin head 1 is contacted with the tested components, so that the detection can be implemented. During the detection: after the needle head 1 is contacted with a tested element and is subjected to pressure, the pressure is transmitted to the elastic connecting part, and the elastic connecting part deforms; the needle tail 6 receives the pressure effect after contacting with the PCB circuit board, and the needle tail 6 can take place deformation for the base with rigid connection portion 5 to prevent taking place between syringe needle 1, elastic connection portion, rigid connection portion 5 and the needle tail 6 and reduce, ensure that the product is difficult to take place to damage, ensure the exactness of test result.

The first protrusion 35 and the second protrusion 45 are matched with each other, so that on one hand, a limiting effect is achieved, and the elastic connecting part is prevented from being over-pressed to damage the elastic sheet structure when the needle head 1 is pressed downwards under force, and the service life of the elastic sheet is shortened; on the other hand, the conductive connection part has a conductive effect, when the elastic connection part is compressed downwards, the first protrusion 35 and the second protrusion 45 are in contact with each other, so that the functions of conducting current and reducing resistance can be achieved, and the correctness of a test result is ensured.

As shown in fig. 1, along the horizontal direction of the elastic sheet structure, the end close to the needle head 1 between the first elastic connecting portion 3 and the second elastic connecting portion 4 is in open distribution, and the end deviating from the needle head 1 between the first elastic connecting portion 3 and the second elastic connecting portion 4 is connected, so that certain elastic deformation can be generated between the first elastic connecting portion 3 and the second elastic connecting portion 4.

As shown in fig. 1, the first elastic connecting portion 3 is a hollow structure formed by sequentially connecting a first vertical plate 31, a first transverse plate 32, a second vertical plate 33 and a second transverse plate 34 end to end, and can ensure that the first elastic connecting portion 3 can generate elastic deformation in a wide range; the longitudinal extension end of the first vertical plate 31 is connected with the needle 1, and the second transverse plate 34 is provided with a downward first bulge 35. The first horizontal plate 32 and the second horizontal plate 34 are obliquely arranged, so that elastic deformation is facilitated.

As shown in fig. 1, the second elastic connecting portion 4 is a hollow structure formed by sequentially connecting the third vertical plate 41, the third horizontal plate 42, the fourth vertical plate 43 and the fourth horizontal plate 44 end to end, so that the second elastic connecting portion 4 can be elastically deformed in a wide range; and the longitudinal extension end of the fourth vertical plate 43 is connected with the longitudinal extension end of the second vertical plate 33, the longitudinal extension end of the third vertical plate 41 is connected with the rigid connection part 5, the third transverse plate 42 is provided with an upward second protrusion 45, the second protrusion 45 is arranged opposite to the first protrusion 35, and the third transverse plate 42 and the fourth transverse plate 44 are obliquely arranged, so that elastic deformation is convenient to occur.

Through being equipped with decurrent first arch 35 on second diaphragm 34, be equipped with ascending second arch 45 on the third diaphragm 42, second arch 45 sets up with first arch 35 is relative, and its main function does: (1) the limiting function is used for preventing the elastic connecting part from being over-pressed to damage the elastic sheet structure when the needle head 1 is pressed downwards under force, so that the service life of the elastic sheet is reduced; (2) and the conduction function is realized, when the elastic connecting part is compressed downwards, the first protrusion 35 and the second protrusion 45 are contacted with each other, so that the functions of conducting current and reducing resistance can be realized, and the correctness of a test result is ensured.

As shown in fig. 1, the rigid connecting portion 5 includes a rigid connecting transverse plate 51, a first rigid connecting vertical plate 52 and a second rigid connecting vertical plate 53 are respectively connected to left and right ends of the rigid connecting transverse plate 51 to form a shrink groove 54 with a downward opening, the pin tail 6 is disposed in the shrink groove 54, and a longitudinally extending end of the first rigid connecting vertical plate 52 is connected to a longitudinally extending end of the third vertical plate 41.

The pin tail 6 is arranged in the shrink groove 54, and when the pin tail 6 is in contact with the PCB, the pin tail 6 is under the action of pressure, the rigid connection part 5 is used as a base to deform in the shrink groove 54, on one hand, good contact between the pin tail 6 and the PCB can be ensured, and on the other hand, the pin tail 6 can be prevented from deforming seriously and being difficult to restore.

As shown in fig. 1, the needle tail 6 includes two fifth transverse plates 61 located in the same plane, one ends of the two fifth transverse plates 61 are connected through a fifth vertical plate 62, the other ends of the two fifth transverse plates 61 are connected to the inner side of the first rigid connecting vertical plate 52, and an opening distance formed between the one ends of the two fifth transverse plates 61 is greater than an opening distance formed between the other ends of the two fifth transverse plates 61, so that elastic deformation is facilitated.

As shown in fig. 1, the needle tail 6 is also a hollow structure, which ensures that the needle tail 6 can be elastically deformed smoothly.

Example 2

The structure of the pin tail 6 is the same as that of the pin spring of embodiment 1, except that, as shown in fig. 2, the pin tail 6 includes two fifth transverse plates 61 located in the same plane, one ends of the two fifth transverse plates 61 are connected through a fifth vertical plate 62, the other ends are connected to the inner side of the second rigid connecting vertical plate 53, and the opening distance formed between the one ends of the two fifth transverse plates 61 is greater than the opening distance formed between the other ends of the two fifth transverse plates 61, so as to facilitate elastic deformation.

Example 3

The cross section of the contact head 2 is B type, P type, W type, M type, T type, H type, F type, O type, D type or R type, and the contact head can be set to be different shapes according to the component to be measured, so that the stable contact impedance of the contact between the shrapnel pin and the circuit board is ensured.

The contact head 2 is provided with one or more contact heads, so that good contact between the first contact part 1 and the tested component is realized, and the accuracy of a test result is ensured.

The utility model discloses following technological effect has:

1) the utility model discloses a shrapnel needle, its syringe needle 1 and needle tail 6 link together through elastic connecting portion and rigid connection portion 5, needle tail 6 and PCB circuit board elastic contact when using, syringe needle 1 contacts with the components and parts to be tested, and can take place certain elastic deformation between syringe needle and the components and parts to be tested under the effect of elastic connection portion, can form good contact between syringe needle 1 and the components and parts to be tested, between needle tail 6 and the PCB circuit board, ensure the exactness of test result;

2) compared with the assembly mode of a spring probe, the elastic sheet needle has the advantages that the needle head 1, the elastic connecting part, the rigid connecting part 5 and the needle tail 6 are fixedly connected together, and the elastic connecting part and the needle tail 6 are elastically contracted when stressed, so that the breakage among all parts can be avoided, the product is ensured not to be easily damaged, and the service life is prolonged;

3) in the utility model, the first elastic connecting part 3 is provided with the downward first bulge 35, the second elastic connecting part 4 is provided with the upward second bulge 45, and the positions of the first bulge 45 and the second bulge 35 correspond to each other, so that on one hand, a limiting effect is achieved, and when the needle head 1 is pressed downwards under force, the elastic connecting part is prevented from being over-pressed to damage the elastic sheet structure, and the service life of the elastic sheet is reduced; on the other hand, the conductive connection part has a conductive function, and when the elastic connection part is compressed downwards, the first protrusion 35 and the second protrusion 45 are in contact with each other, so that the conductive connection part can conduct current and reduce resistance.

While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A shrapnel needle is characterized in that the shrapnel needle is an integrally formed shrapnel structure processed by a sheet metal shrapnel and comprises a needle head (1), an elastic connecting part, a rigid connecting part (5) and a needle tail (6) which are sequentially connected along the longitudinal direction of the shrapnel structure;

the needle head (1) is of a plate-shaped structure extending longitudinally along the elastic sheet structure, one end of the needle head (1) is connected with the elastic connecting part, and the other end of the needle head (1) is provided with a contact head (2);

the elastic connecting part comprises a first elastic connecting part (3) and a second elastic connecting part (4) which are longitudinally arranged and connected along an elastic sheet structure and have the same structure, the first elastic connecting part (3) is connected with one end of the needle head (1), a downward first bulge (35) is arranged on the first elastic connecting part (3), an upward second bulge (45) is arranged on the second elastic connecting part (4), and the first bulge (35) corresponds to the second bulge (45);

the rigid connecting part (5) is connected with the second elastic connecting part (4), and a contraction groove (54) is formed in the tail part of the rigid connecting part (5);

the needle tail (6) is connected with the rigid connecting part (5) and is arranged in the contraction groove (54).

2. The shrapnel needle according to claim 1, characterized in that, along the transverse direction of the shrapnel structure, one end between the first elastic connecting part (3) and the second elastic connecting part (4) close to the needle head (1) is distributed in an opening, and the first elastic connecting part (3) is connected with the other end of the second elastic connecting part (4).

3. The shrapnel needle as claimed in claim 1 or 2, wherein the first elastic connecting part (3) is a hollow structure formed by sequentially connecting a first vertical plate (31), a first transverse plate (32), a second vertical plate (33) and a second transverse plate (34) end to end, the longitudinal extension end of the first vertical plate (31) is connected with the needle head (1), and the second transverse plate (34) is provided with the downward first bulge (35).

4. The latch needle according to claim 3, characterized in that the first transverse plate (32) and the second transverse plate (34) are arranged diagonally.

5. The needle of claim 3, wherein the second elastic connecting portion (4) is a hollow structure formed by sequentially connecting a third vertical plate (41), a third horizontal plate (42), a fourth vertical plate (43) and a fourth horizontal plate (44) end to end, a longitudinal extending end of the fourth vertical plate (43) is connected with a longitudinal extending end of the second vertical plate (33), a longitudinal extending end of the third vertical plate (41) is connected with the rigid connecting portion (5), the third horizontal plate (42) is provided with an upward second protrusion (45), and the second protrusion (45) is opposite to the first protrusion (35).

6. The clip of claim 5, wherein the third transverse plate (42) and the fourth transverse plate (44) are diagonally arranged.

7. The needle assembly according to claim 5, wherein the rigid connecting portion (5) comprises a rigid connecting cross plate (51), a first rigid connecting vertical plate (52) and a second rigid connecting vertical plate (53) are respectively connected to left and right ends of the rigid connecting cross plate (51) to form the shrink slot (54) with a downward opening, and a longitudinally extending end of the first rigid connecting vertical plate (52) is connected to a longitudinally extending end of the third vertical plate (41).

8. The needle of claim 7, wherein the needle tail (6) comprises two fifth transverse plates (61) in the same plane, and the two fifth transverse plates (61) are connected by a fifth vertical plate (62) at one end and connected to the inner side of the first rigid connecting vertical plate (52) or the second rigid connecting vertical plate (53) at the other end.

9. The pogo pin of claim 1, wherein the cross-section of the contact (2) is B-shaped, P-shaped, W-shaped, M-shaped, T-shaped, H-shaped, F-shaped, O-shaped, D-shaped or R-shaped.

10. The projectile needle as claimed in claim 1 or 9, wherein said contact head (2) is provided with one or more.