CN218958042U - Double-sided blind hole soldering-free fish-eye terminal structure - Google Patents
Double-sided blind hole soldering-free fish-eye terminal structure Download PDFInfo
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- CN218958042U CN218958042U CN202223107394.XU CN202223107394U CN218958042U CN 218958042 U CN218958042 U CN 218958042U CN 202223107394 U CN202223107394 U CN 202223107394U CN 218958042 U CN218958042 U CN 218958042U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a double-sided blind hole soldering-free fisheye terminal structure, which consists of a main body and a terminal, wherein the main body is provided with a plurality of blind holes; the outer contour surface of the terminal is directly punched to form an arc surface, and can be better attached to the arc surface of the mounting hole on the PCB, so that the matching precision and stability of the assembled PCB and the terminal structure are improved; meanwhile, the length of the groove is increased by the rectangular grooves which are symmetrically arranged, so that the spring plate structure can more easily span the stress area, the terminal matching area and the terminal holding force area of the terminal, and the holding force of the terminal inserted into the PCB is effectively improved.
Description
Technical Field
The utility model relates to the technical field of connectors, in particular to a double-sided blind hole soldering-free fish-eye terminal structure.
Background
In the industrial technical field, especially in the technical field of industrial 5G stations and in the field of automotive manufacturing, the connection between a conventional PCB and a terminal is basically welded, i.e. the PCB and the terminal are electrically connected after being fixed by a welding method, but the connection between the PCB and the terminal by a welding method has the following defects: the soldering tin has poor environment resistance, low strength, easy short circuit generation, complex welding process, difficult process control and high cost.
At present, a plurality of common welding-free connection modes of the terminal and the PCB exist, but the terminal usually adopts a through hole fish-eye terminal, a movable pin terminal, a C-shaped terminal, an H-shaped terminal and the like.
Compared with the through hole fish-eye terminal, the blind hole fish-eye terminal can provide larger terminal holding force, so that the connection between the PCB and the terminal is more stable. At present, the external profile surface of the part of the blind hole welding-free fish-eye terminal inserted into the PCB board terminal adopts an edge to be matched with a fillet for transition, but a mounting hole on the PCB is usually an arc hole, the edge of the blind hole welding-free fish-eye terminal is relatively poor in fit with the arc surface on the mounting hole on the PCB, and the fit precision and stability after assembly are affected.
Disclosure of Invention
In order to achieve the above purpose, the utility model provides a double-sided blind hole soldering-free fisheye terminal structure, which consists of a main body and a terminal, wherein the terminal and the main body are integrally manufactured;
the outer contour surface of the terminal is an arc surface, the upper surface and the lower surface of the terminal are respectively provided with a rectangular groove, the rectangular grooves on the upper surface and the lower surface are symmetrically arranged, and the bottoms of the two rectangular grooves form a spring plate structure; the terminal is sequentially provided with a terminal leading-in area, a terminal stress area, a terminal matching area, a terminal holding force area and a terminal strength area from bottom to top.
Furthermore, the double-sided blind hole soldering-free fish-eye terminal structure consists of a main body and a terminal.
Further, when the double-sided blind hole soldering-free fisheye terminal structure is composed of a main body and a terminal, the thickness of the terminal is 0.4-0.8 mm.
Furthermore, the double-sided blind hole soldering-free fish-eye terminal structure consists of a main body and 2 terminals.
Further, when the double-sided blind hole soldering-free fisheye terminal structure consists of one main body and 2 terminals, the thickness of the terminals is 0.7-0.9 mm.
Further, the symmetry degree of the upper surface and the lower surface of the elastic sheet structure is smaller than or equal to 0.05mm.
Further, the spring plate structure is located in the terminal stress area, the terminal matching area and the terminal holding force area at the same time, the thickness of the spring plate structure is thinned from the terminal stress area to the terminal matching area, and the thickness of the spring plate structure is thickened from the terminal matching area to the terminal holding force area.
Further, the thickness of the spring plate structure is uniformly changed in the terminal stress area, the terminal matching area and the terminal holding force area.
Further, the terminal lead-in area length is greater than or equal to 1.6mm.
According to the double-sided blind hole soldering-free fish-eye terminal structure, the outer contour surface of the terminal is directly punched to form the arc surface, so that the outer contour surface of the terminal can be better attached to the arc surface of the mounting hole on the PCB, and the matching precision and stability of the assembled PCB and terminal structure are improved; meanwhile, the length of the groove is increased by the symmetrically arranged rectangular grooves, so that the elastic sheet structure can more easily span the stress area, the terminal matching area and the terminal holding force area, after the terminal is pressed into the mounting hole in the PCB, the elastic sheet structure is deformed into a Z-shaped structure, and when the terminal is a main body and a terminal, the holding force of the terminal is effectively ensured to be greater than or equal to 50N; in the case of one body and two terminals, the holding force of the terminals is effectively ensured to be 70N or more.
Drawings
FIG. 1 is a schematic diagram of a double-sided blind hole solder-free fisheye terminal structure of the utility model;
FIG. 2 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 3 is an enlarged schematic view of a portion of FIG. 1A;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is a schematic axial side view of a double-sided blind hole solder-free fisheye terminal of the utility model;
FIG. 6 is a schematic diagram of another structure of a double-sided blind hole solder-free fisheye terminal of the utility model;
in the figure: 1. the terminal comprises a main body, 2 terminals, 211, an outer contour surface, 212, a rectangular groove, 213, a spring plate structure, L1, a terminal leading-in area, L2, a terminal stress area, L3, a terminal matching area, L4, a terminal holding force area, L5, a terminal strength area and H1, a spring plate structure thickness.
Detailed Description
The utility model is described in further detail below with reference to the specific embodiments of fig. 1-6. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.
Example 1
The structure of the double-sided blind hole soldering-free fisheye terminal in the embodiment is shown in fig. 1-5, and the double-sided blind hole soldering-free fisheye terminal structure consists of a main body 1 and a terminal 2, wherein the terminal 1 and the main body 2 are integrally manufactured;
the thickness H1 of the terminal 1 is 0.4-0.8 mm, and the outer contour surface 211 is an arc surface; the upper surface and the lower surface of the terminal 1 are respectively provided with a rectangular groove 212, the rectangular grooves 212 on the upper surface and the lower surface are symmetrically arranged, the bottoms of the two rectangular grooves form a spring plate structure 213, and the symmetry degree of the upper surface and the lower surface of the spring plate structure 213 is less than or equal to 0.05mm;
the terminal is sequentially provided with a terminal leading-in area L1, a terminal stress area L2, a terminal matching area L3, a terminal holding force area L4 and a terminal strength area L5 from bottom to top, and the length of the terminal leading-in area L1 is more than or equal to 1.6mm. The spring plate structure 213 is located in the terminal stress area L2, the terminal fitting area L3 and the terminal holding force area L4 at the same time, the thickness of the spring plate structure 213 is thinned from the terminal stress area L2 to the terminal fitting area L3, from the terminal fitting area L3 to the terminal holding force area L4, the thickness of the spring plate structure 213 is thickened from thin, and the thickness of the spring plate structure 213 is uniformly changed in the terminal stress area L2, the terminal fitting area L3 and the terminal holding force area L4.
According to the double-sided blind hole soldering-free fish-eye terminal structure, the outer contour surface of the terminal directly forms an arc surface through stamping, and the outer contour surface of the terminal can be better attached to the arc surface of the mounting hole on the PCB, so that the insertion force of the terminal into the PCB is between 70N and 110N, and the matching precision and stability of the assembled PCB and the terminal structure are improved. Meanwhile, the length of the groove is increased by the symmetrically arranged rectangular grooves, so that the spring plate structure can more easily span the terminal stress area, the terminal matching area and the terminal holding force area. When the terminal is pressed into the PCB, the spring plate structure is deformed into a Z shape, so that the holding force of the terminal is greater than or equal to 50N.
Example 2
The structure of the double-sided blind hole soldering-free fish-eye terminal in the embodiment is shown in fig. 6, and the double-sided blind hole soldering-free fish-eye terminal structure consists of a main body and 2 terminals, wherein the terminals and the main body are integrally manufactured;
the thickness of the terminal is 0.7-0.9 mm, and the outer contour surface is an arc surface; the upper surface and the lower surface of the terminal are respectively provided with a rectangular groove, the rectangular grooves on the upper surface and the lower surface are symmetrically arranged, the bottoms of the two rectangular grooves form a spring plate structure, and the symmetry degree of the upper surface and the lower surface of the spring plate structure is less than or equal to 0.05mm;
the terminal is sequentially provided with a terminal leading-in area, a terminal stress area, a terminal matching area, a terminal holding force area and a terminal strength area from bottom to top, and the length of the terminal leading-in area is more than or equal to 1.6mm. The elastic sheet structure is located in the terminal stress area, the terminal matching area and the terminal holding force area simultaneously, the thickness of the elastic sheet structure is thinned from the terminal stress area to the terminal matching area, the thickness of the elastic sheet structure is thickened from the terminal matching area to the terminal holding force area, and the thickness of the elastic sheet structure is uniformly changed in the terminal stress area, the terminal matching area and the terminal holding force area.
According to the double-sided blind hole soldering-free fish-eye terminal structure, the outer contour surface of the terminal directly forms an arc surface through stamping, the outer contour surface of the terminal can be better attached to the arc surface of the mounting hole on the PCB, meanwhile, the insertion force of the terminal inserted into the PCB is between 70N and 150N through the double-terminal structure, and the matching precision and stability of the assembled PCB and the terminal structure are improved. Meanwhile, the length of the groove is increased by the symmetrically arranged rectangular grooves, so that the spring plate structure can more easily span the terminal stress area, the terminal matching area and the terminal holding force area. When the terminal is pressed into the PCB, the spring plate structure is deformed into a Z shape, so that the holding force of the terminal is larger than or equal to 70N.
Claims (9)
1. The double-sided blind hole soldering-free fish-eye terminal structure is characterized by comprising a main body and a terminal, wherein the terminal and the main body are integrally manufactured;
the outer contour surface of the terminal is an arc surface, the upper surface and the lower surface of the terminal are respectively provided with a rectangular groove, the rectangular grooves on the upper surface and the lower surface are symmetrically arranged, and the bottoms of the two rectangular grooves form a spring plate structure; the terminal is sequentially provided with a terminal leading-in area, a terminal stress area, a terminal matching area, a terminal holding force area and a terminal strength area from bottom to top.
2. The double-sided blind hole solder-free fisheye terminal structure of claim 1 wherein the double-sided blind hole solder-free fisheye terminal structure comprises a body and a terminal.
3. The double-sided blind hole soldering-free fish-eye terminal structure according to claim 2, wherein the thickness of the terminal is 0.4-0.8 mm.
4. The double-sided blind hole solder-free fisheye terminal structure of claim 1 wherein the double-sided blind hole solder-free fisheye terminal structure is comprised of a body and 2 terminals.
5. The double-sided blind hole soldering-free fish-eye terminal structure according to claim 4, wherein the thickness of the terminal is 0.7-0.9 mm.
6. The double-sided blind hole soldering-free fish-eye terminal structure according to claim 1, wherein the symmetry of the upper and lower surfaces of the spring plate structure is less than or equal to 0.05mm.
7. The double-sided blind hole soldering-free fisheye terminal structure of claim 1, wherein the spring structure is located in the terminal stress area, the terminal mating area and the terminal holding force area simultaneously, and the thickness of the spring structure is thinned from the terminal stress area to the terminal mating area, and from the terminal mating area to the terminal holding force area is thinned.
8. The solder-free fish-eye terminal structure of claim 7, wherein the spring structure thickness varies uniformly in the terminal force area, the terminal mating area, and the terminal retention area.
9. The double-sided blind hole solder-free fisheye terminal structure of claim 1 wherein the terminal lead-in area length is greater than or equal to 1.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107394.XU CN218958042U (en) | 2022-11-22 | 2022-11-22 | Double-sided blind hole soldering-free fish-eye terminal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223107394.XU CN218958042U (en) | 2022-11-22 | 2022-11-22 | Double-sided blind hole soldering-free fish-eye terminal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218958042U true CN218958042U (en) | 2023-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223107394.XU Active CN218958042U (en) | 2022-11-22 | 2022-11-22 | Double-sided blind hole soldering-free fish-eye terminal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218958042U (en) |
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2022
- 2022-11-22 CN CN202223107394.XU patent/CN218958042U/en active Active
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