CN216389792U - Blind hole fisheye needle - Google Patents
Blind hole fisheye needle Download PDFInfo
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- CN216389792U CN216389792U CN202122397680.3U CN202122397680U CN216389792U CN 216389792 U CN216389792 U CN 216389792U CN 202122397680 U CN202122397680 U CN 202122397680U CN 216389792 U CN216389792 U CN 216389792U
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- fisheye
- needle
- blind hole
- shoulder
- hole
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Abstract
The utility model discloses a blind hole fisheye needle, which is characterized in that: the fisheye-shaped needle comprises an inserting part, a shoulder part, a fisheye part and a needle rod part, wherein the fisheye part is arranged between the inserting part and the shoulder part, the needle rod part is arranged at the end part of the shoulder part, and the fisheye part comprises a pair of elastic arms arranged at two opposite sides; be connected with between the inboard of elastic arm and link material portion, and, link the both ends of material portion and be the setting of tapering gradually towards the middle part, link material portion both sides respectively and elastic arm between form the blind hole. The blind hole fisheye needle is characterized in that a connecting part is connected between the inner sides of the elastic arms, two ends of the connecting part are arranged to be gradually thinner towards the middle part, blind holes are formed between two sides of the connecting part and the elastic arms respectively, the blind holes provide deformation spaces for fisheye parts, and the connecting part is utilized to increase the overall strength; the structure is simple and the production is easy.
Description
Technical Field
The utility model relates to the technical field of fisheye needles, in particular to a blind hole fisheye needle.
Background
With the development of science and technology, the high-speed storage and transmission of big data become the key technical challenge of the 5G era. The high-side connector will play an important role therein, and the terminal will become one of the important factors affecting the design of the high-side connector.
As a novel terminal, a fisheye needle is widely used in the field of communication connectors. Fisheye needle among the prior art is mostly through-hole fisheye needle, specifically speaking, its fisheye includes the through-hole and is located a pair of elastic arm of the both sides of through-hole. The fisheye part is pressed into the inserting hole of the PCB for electrical lapping. At the moment, the pair of elastic arms is extruded by the inner wall of the plug hole to elastically deform towards the inner side of the plug hole, so that the fixation is achieved. After long-time use, the elastic arm is easy to generate fatigue deformation, and the installation stability of the fisheye needle is influenced. Therefore, in the conventional technology, after the fisheye portion of the fisheye needle is inserted into the insertion hole of the PCB, the fisheye portion and the insertion hole still need to be welded, so that the fisheye needle is fixed on the PCB. In the welding process, the hidden tin soldering troubles of empty soldering, insufficient soldering and infirm soldering exist; in addition, after welding is finished, cleaning work is required; and the maintenance and the installation are difficult.
Therefore, a new technical solution is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to the disadvantages of the prior art, and the main object of the present invention is to provide a blind hole fisheye needle, wherein a connecting portion is connected between the inner sides of elastic arms, the two ends of the connecting portion are arranged to be gradually thinner toward the middle, blind holes are formed between the two sides of the connecting portion and the elastic arms, the blind holes provide deformation spaces for the fisheye, and the connecting portion is used to increase the overall strength; the structure is simple and the production is easy.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a blind hole fisheye needle comprises an insertion part, a shoulder part, a fisheye part arranged between the insertion part and the shoulder part and a needle rod part arranged at the end part of the shoulder part, wherein the fisheye part comprises a pair of elastic arms arranged at two opposite sides; be connected with between the inboard of elastic arm and link material portion, and, link the both ends of material portion and be the setting of tapering gradually towards the middle part, link material portion both sides respectively and elastic arm between form the blind hole.
Preferably, the end of the insertion part is of a conical structure.
Preferably, the outer sides of the elastic arms are respectively provided with convex arc edges.
Preferably, one end of the convex arc edge extends to the joint of the fisheye part and the inserting part, so that: the connection part of the fisheye part and the inserting part is of an arc-shaped structure.
Preferably, the other end of the convex arc edge extends to the joint of the fisheye part and the shoulder part, so that: the connection part of the fisheye part and the shoulder part is of a circular arc structure.
Preferably, the convex arc edge is arranged to be gradually reduced towards the outer side by the elastic arm.
As a preferable scheme, the connecting part is of a convex arc structure.
Compared with the prior art, the fish-eye-shaped connecting device has the obvious advantages and beneficial effects, and particularly, according to the technical scheme, the connecting part is connected between the inner sides of the elastic arms, the two ends of the connecting part are arranged in a gradually-thinned manner towards the middle part, blind holes are formed between the two sides of the connecting part and the elastic arms respectively, the blind holes provide reserved deformation spaces for the fish-eye part, and the connecting part is utilized to increase the overall strength; the left end and the right end of the material connecting part respectively play a supporting role for the elastic arms on the two sides, so that the phenomenon of rebounding of the blind hole fisheye needle is avoided, meanwhile, the insertion and extraction force is ensured to be increased, and the stable and reliable insertion and contact of the fisheye needle are ensured.
And secondly, convex arc edges are respectively arranged on the outer sides of the elastic arms of the blind hole fisheye needle, and have deformation capacity. The blind hole fisheye needle combines the convex arc edges, the concave cavity and the material connecting part, the material connecting part can provide certain supporting force for the convex arc edges on the two side edges, the inserting and pulling force is increased, and the fisheye needle is ensured to be stably and reliably inserted and contacted. The blind hole fisheye pin can be inserted and tightly matched with the PCB board inserting hole, so that welding-free inserting is realized. The structure is simple and the production is easy.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a front view of a blind-hole fisheye needle of an embodiment of the utility model (the needle-setting state of the blind-hole fisheye needle);
FIG. 2 is a front view of a fish eye of an embodiment of the utility model;
FIG. 3 is a side view of a fish eye of an embodiment of the utility model;
FIG. 4 is a partial cross-sectional view taken at E-E of FIG. 2;
FIG. 5 is a partial sectional view taken along line A-A of FIG. 2 (in a state where a fisheye is inserted into a PCB board jack);
FIG. 6 is a partial sectional view taken along line B-B of FIG. 2 (in a state where a fisheye is inserted into a PCB board jack);
fig. 7 is a partial sectional view at C-C in fig. 2 (a state in which a fisheye is inserted into a PCB board mating hole).
The attached drawings indicate the following:
10. plug-in part 11, guide surface
20. Shoulder 30, fisheye
31. Blind hole 32, through cavity
33. Connecting part 34, elastic arm
341. Convex arc edge 35 and first concave cavity
36. Second cavity 40, shank portion
50. PCB board 51, plug hole.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "upper", "lower", "front", "rear", "left", "right", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and operation, and should not be construed as limiting the specific scope of the present invention.
Referring to fig. 1 to 7, specific structures of embodiments of the present invention are shown.
The utility model provides a blind hole fisheye needle, includes grafting portion 10, shoulder 20, sets up fisheye portion 30 between grafting portion 10 and shoulder 20 and sets up in the needle bar portion 40 of shoulder 20 tip, fisheye portion 30 includes a pair of elastic arm 34 of two offsides, be connected with between the inboard of elastic arm 34 and link material portion 33, and, the both ends of linking material portion 33 are for the setting of tapering towards the middle part, link material portion 33 both sides respectively and elastic arm 34 between form blind hole 31. Preferably, the end of the shoulder 20 is integrally connected with a needle portion 40.
Fig. 1 shows a front view of a blind-hole fisheye needle, wherein it shows in particular a front view of three blind-hole fisheye needles in a pin header. The blind hole fisheye needle comprises an inserting part 10, a shoulder part 20, a fisheye part 30 and a needle rod part 40 which are sequentially connected from top to bottom, wherein the inserting part 10, the shoulder part 20, the fisheye part 30 and the needle rod part 40 are integrally arranged, and the blind hole fisheye needle is made of metal materials. In fig. 1, the blind hole fisheye needles are arranged in a side-by-side spaced manner, the shoulders 20 of adjacent blind hole fisheye needles are connected with each other, and the shoulders 20 of the blind hole fisheye needles are integrally formed.
Fig. 2 shows a front view of the eye of a blind eye needle. The blind hole fisheye needle is provided with an inserting part 10, a fisheye part 30 and a shoulder part 20 which are sequentially and adjacently connected from top to bottom. Preferably, the end of the socket 10 is a cone-shaped structure, and specifically, the circumference of the end of the socket 10 is gradually reduced toward the center of the end to form a guide surface 11, which facilitates the insertion of a blind-hole fisheye pin into the socket hole 51 of the PCB 50. The lower end of the inserting part 10 is connected with a fisheye part 30. The fisheye portion 30 includes a blind hole 31, a pair of resilient arms 34. The elastic arms 34 are respectively arranged at the left side and the right side of the blind hole 31. In addition, the blind hole 31 is provided with a material connecting part 33, and two ends of the material connecting part 33 are respectively connected with the upper end and the lower end of the blind hole 31. Two sides of the connecting part 33 and the elastic arms 34 at two sides form an arc opening structure which is a through cavity 32. Specifically, the through cavity 32 is formed between the left side edge of the connecting portion 33 and the left elastic arm 34, and accordingly, the through cavity 32 is formed between the right side edge of the connecting portion 33 and the right elastic arm 34. The lower end of the fisheye part 30 is connected with a shoulder part 20. In addition, the outer sides of the elastic arms 34 are respectively provided with convex arc edges 341. One end of the convex arc edge 341 extends to the connection position of the fisheye part 30 and the inserting part 10, so that: the connection part of the fisheye part 30 and the inserting part 10 is of an arc structure; the other end of the convex arc edge 341 extends to the connection between the fisheye portion 30 and the shoulder portion 20, so that: the connection part of the fish eye part 30 and the shoulder part 20 is in a circular arc structure.
Fig. 3 is a side view of a fish eye of an embodiment of the utility model. The convex arc edge 341 is formed by the elastic arm 34 and is gradually reduced towards the outside, and one end of the convex arc edge 341 extends to the connection position of the fisheye portion 30 and the insertion portion 10, so that: the width of the head of the fisheye part 30 is increased, so that hard interference generated when the fisheye part 30 of the blind hole fisheye needle is pressed into the PCB 50 is avoided. In addition, the other end of the convex arc edge 341 extends to the connection between the fisheye portion 30 and the shoulder portion 20, so that: the width of the root of the fisheye part 30 is increased, so that the fisheye pin of the blind hole is prevented from being bent, broken and contorted when being pressed into the plug hole 51 of the PCB 50.
Fig. 4 is a partial cross-sectional view at E-E in fig. 2. The front end and the rear end of the blind hole 31 are respectively recessed toward the middle to form a cavity. Specifically, the front end of the blind hole 31 is recessed backward to form a first cavity 35; the rear end of the blind hole 31 is recessed forward to form a second cavity 36. The connecting material part 33 is arranged between the cavities, namely: the connecting portion 33 is disposed between the first cavity 35 and the second cavity 36. The two ends of the connecting part 33 are arranged to be gradually reduced towards the middle part, so that the connecting part 33 forms a convex arc-shaped structure from front to back, the elastic arm 34 can elastically deform inwards conveniently, and meanwhile, the convex arc-shaped connecting part 33 is also used as an elastic deformable body, and the elasticity of the elastic arm 34 and the elastic holding capacity of the whole fisheye part 30 can be improved. The two sides of the connecting part 33 are respectively connected with the inner side edges of the elastic arms 34 to form a through cavity 32, the connecting part 33 is of a convex arc structure, and therefore the through cavities 32 on the two sides of the connecting part 33 are of a convex through cavity 32 structure, so that: the through cavity 32 reserves sufficient deformation space for the deformation of the convex arc edges 341 and the elastic arms 34 on the two sides, and meanwhile, the material connecting part 33 can be utilized to increase the overall strength of the blind hole fisheye needle.
Fig. 5 to 7 are partial sectional views a-a, B-B and C-C in fig. 2, respectively, and fig. 5 to 7 are sectional views specifically showing the use state of inserting the fisheye into the PCB board jack.
Next, the use process of the present embodiment is detailed as follows:
step 1: the inserting part 10 of the blind hole fisheye needle is pre-placed in the inserting hole 51 of the PCB 50, the guide surface 11 of the inserting part 10 guides the blind hole fisheye needle into the inserting hole 51, and the blind hole fisheye needle is preliminarily positioned;
step 2: continuously inserting the inserting part 10 of the blind-hole fisheye needle into the inserting hole 51, wherein at the moment, the connection part 10 and the fisheye part 30 and the inserting hole 51 begin to generate interference;
and step 3: continuously pressing the fisheye part 30 of the blind hole fisheye needle into the plug-in hole 51, wherein the convex arc edges 341 at the outer sides of the elastic arms 34 at the two sides are firstly extruded by the inner wall of the plug-in hole 51 to generate elastic deformation, meanwhile, the elastic arms 34 at the two sides are extruded by the inner wall of the plug-in hole 51 to generate deformation and draw close to the material connecting part 33, a through cavity 32 between the material connecting part 33 and the elastic arms 34 becomes small, the left end and the right end of the material connecting part 33 respectively play a supporting role for the elastic arms 34 and the convex arc edges 341 at the two sides, so that the rebound phenomenon of the blind hole fisheye needle is avoided, meanwhile, the insertion and extraction force is ensured to be increased, and the stable and reliable insertion and contact of the blind hole fisheye needle is ensured;
and 4, step 4: the blind hole fisheye needle is continuously pressed into the inserting hole 51, the connection part of the fisheye part 30 and the shoulder part 20 is interfered with the inserting hole 51, the convex arc edge 341 at the connection part of the fisheye part 30 and the shoulder part 20 increases the width of the root part of the fisheye part 30, the strength of the blind hole fisheye needle is improved, and the phenomenon of inserting and buckling is prevented.
The design of the utility model is characterized in that a connecting part is connected between the inner sides of the elastic arms, the two ends of the connecting part are arranged in a gradually-thinner mode towards the middle part, blind holes are respectively formed between the two sides of the connecting part and the elastic arms, the blind holes provide deformation spaces for fisheye parts, and the connecting part is utilized to increase the overall strength; the left end and the right end of the material connecting part respectively play a supporting role for the elastic arms on the two sides, so that the phenomenon of rebounding of the blind hole fisheye needle is avoided, meanwhile, the insertion and extraction force is ensured to be increased, and the stable and reliable insertion and contact of the blind hole fisheye needle are ensured.
And secondly, convex arc edges are respectively arranged on the outer sides of the elastic arms of the blind hole fisheye needle, and have deformation capacity. The blind hole fisheye needle combines the convex arc edges, the concave cavity and the material connecting part, the material connecting part can provide certain supporting force for the convex arc edges on the two side edges, the insertion and extraction force is increased, and the stable and reliable insertion and contact of the blind hole fisheye needle is ensured. The blind hole fisheye pin can be inserted and tightly matched with the PCB board inserting hole, so that welding-free inserting is realized. The structure is simple and the production is easy.
Claims (7)
1. A blind hole fisheye needle which is characterized in that: the fisheye-shaped needle comprises an inserting part, a shoulder part, a fisheye part and a needle rod part, wherein the fisheye part is arranged between the inserting part and the shoulder part, the needle rod part is arranged at the end part of the shoulder part, and the fisheye part comprises a pair of elastic arms arranged at two opposite sides; be connected with between the inboard of elastic arm and link material portion, and, link the both ends of material portion and be the setting of tapering gradually towards the middle part, link material portion both sides respectively and elastic arm between form the blind hole.
2. The blind hole fisheye needle of claim 1, wherein: the end part of the insertion part is of a conical structure.
3. The blind hole fisheye needle of claim 1, wherein: and convex arc edges are respectively arranged on the outer sides of the elastic arms.
4. The blind hole fisheye needle of claim 3, wherein: one end of the convex arc edge extends to the joint of the fisheye part and the inserting part, so that: the connection part of the fisheye part and the inserting part is of an arc-shaped structure.
5. The blind hole fisheye needle of claim 3, wherein: the other end of the convex arc edge extends to the joint of the fisheye part and the shoulder part, so that: the connection part of the fisheye part and the shoulder part is of a circular arc structure.
6. The blind-hole fisheye needle according to any of claims 3 to 5, characterized in that: the convex arc edge is arranged to be gradually reduced towards the outer side by the elastic arm.
7. The blind hole fisheye needle of claim 1, wherein: the material connecting part is of a convex arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122397680.3U CN216389792U (en) | 2021-09-30 | 2021-09-30 | Blind hole fisheye needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122397680.3U CN216389792U (en) | 2021-09-30 | 2021-09-30 | Blind hole fisheye needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216389792U true CN216389792U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122397680.3U Active CN216389792U (en) | 2021-09-30 | 2021-09-30 | Blind hole fisheye needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216389792U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116365271A (en) * | 2023-05-26 | 2023-06-30 | 合肥中恒微半导体有限公司 | Fisheye terminal and connector adopting fisheye terminal |
-
2021
- 2021-09-30 CN CN202122397680.3U patent/CN216389792U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116365271A (en) * | 2023-05-26 | 2023-06-30 | 合肥中恒微半导体有限公司 | Fisheye terminal and connector adopting fisheye terminal |
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