CN117293574A - Fisheye terminal - Google Patents
Fisheye terminal Download PDFInfo
- Publication number
- CN117293574A CN117293574A CN202211471851.5A CN202211471851A CN117293574A CN 117293574 A CN117293574 A CN 117293574A CN 202211471851 A CN202211471851 A CN 202211471851A CN 117293574 A CN117293574 A CN 117293574A
- Authority
- CN
- China
- Prior art keywords
- elastic part
- bulge
- fish
- elastic
- concave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000007704 transition Effects 0.000 claims description 28
- 241000251468 Actinopterygii Species 0.000 claims description 8
- 238000003780 insertion Methods 0.000 abstract description 40
- 230000037431 insertion Effects 0.000 abstract description 40
- 239000000463 material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
Abstract
The invention relates to the field of electronic connecting devices, and discloses a fish-eye terminal which comprises a base, a pin part, a first elastic part and a second elastic part, wherein the first elastic part and the second elastic part are oppositely arranged between the base and the pin part and are encircled to form a fish-eye hole, a first bulge and a second bulge which are positioned in the fish-eye hole are oppositely arranged at the middle parts of the inner sides of the first elastic part and the second elastic part, a first concave table and a second concave table which are respectively extended to a first elastic part main body are arranged at two sides of the first bulge corresponding to two ports of the fish-eye hole, and a third concave table and a fourth concave table which are respectively extended to a second elastic part main body are respectively arranged at two sides of the second bulge corresponding to two ports of the fish-eye hole. Double wave peaks formed by insertion force when the fisheye terminal is clamped into the circuit board jack are effectively counteracted, the insertion force is balanced, the circuit board is stably inserted, and damage to the circuit board is avoided; has better service life, and reduces material fatigue and force value attenuation.
Description
Technical Field
The invention relates to the field of electronic connection devices, in particular to a fish-eye terminal.
Background
Press-Fit, also known as "fish eye terminal", is an alternative solution to solder mounting. The reliable connection of the electric contact is realized mainly through a cold connection welding-free mode, the fish-eye end is pressed into the PCB hole, and higher clamping force is obtained through smaller pressing force. During the press-in process, the fish-eye ends are elastically deformed and provide a tight connection with low contact resistance and high reliability. The fish-eye terminal creates electromechanical interconnection under the condition of no welding, a connector can be quickly installed on a PCB module, the elimination of the welding process not only reduces connection impedance, but also has good service life, high strength (reliable electric contact position surface) and certain universal interchangeability compared with soldering, and further reduces production cost and assembly time. When the existing fish-eye terminal is clamped into a PCB, the insertion force can form double peaks, so that the insertion force is unbalanced, the circuit board is easily damaged, and the subsequent conduction stability and the service life are affected.
Disclosure of Invention
The invention provides a fish-eye terminal, which solves the technical problems that when the existing fish-eye terminal is clamped into a PCB, the insertion force forms double peaks to cause unbalanced insertion force, the circuit board is easy to be damaged, and the subsequent conduction stability and the service life are influenced.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a fisheye terminal, includes the basal portion, the pin portion and set up relatively in the basal portion with surround first elasticity portion and the second elasticity portion that forms the fisheye hole between the pin portion, the inboard middle part of first elasticity portion and second elasticity portion is provided with first arch and the second arch that is located the fisheye hole relatively, the both sides that first arch corresponds with fisheye hole both ends mouth are provided with first concave station and the second concave station that extends to first elasticity portion main part respectively, the both sides that second arch corresponds with fisheye hole both ends mouth are provided with third concave station and the fourth concave station that extend to second elasticity portion main part respectively. Double wave peaks formed by insertion force when the fisheye terminal is clamped into the circuit board jack are effectively counteracted, the insertion force is balanced, the circuit board is stably inserted, and damage to the circuit board is avoided; has better service life, and reduces material fatigue and force value attenuation.
Further is: smooth transition surfaces are arranged between the outer side surfaces of the first elastic part and the second elastic part and the front surface and the rear surface. The conduction area is increased, and friction damage formed during plugging is reduced.
Further is: the first elastic part comprises a first inserting part, a first transition part and a first holding part which are sequentially connected, the second elastic part comprises a second inserting part, a second transition part and a second holding part which are sequentially connected, the first inserting part, the first transition part and the first holding part are respectively in one-to-one correspondence with the second inserting part, the second transition part and the second holding part, two ends of the first bulge are respectively corresponding to one ends, close to the first transition part, of the inner sides of the first inserting part and the first holding part, and two ends of the second bulge are respectively corresponding to one ends, close to the second transition part, of the inner sides of the second inserting part and the second holding part. The insertion force wave peak is eliminated by the alignment, and the insertion process is effectively and stably carried out.
Further is: the two ends of the first bulge are respectively provided with a first concave round sliding surface connected with the inner side of the first elastic part, and the two ends of the second bulge are respectively provided with a second concave round sliding surface connected with the two ends of the inner side of the second elastic part. Further reducing the double peak wave formed by the insertion force in the insertion process, and having better stability in the insertion process.
Further is: one ends of the first protrusions and the second protrusions are provided with concave arc-shaped surfaces. The elastic curved surface is deformed and recovered well, has fault tolerance, and avoids damage to the circuit board caused by fine dimensional errors.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic front view of a first elastic portion and a second elastic portion;
marked in the figure as: the base 100, the pin portion 200, the first elastic portion 300, the first insertion portion 301, the first transition portion 302, the first holding portion 303, the first protrusion 310, the first concave stage 311, the first concave rounded surface 312, the second elastic portion 400, the second insertion portion 401, the second transition portion 402, the second holding portion 403, the second protrusion 410, the third concave stage 411, and the second concave rounded surface 412.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
The fisheye terminal shown in fig. 1 comprises a base 100, a pin portion 200, and a first elastic portion 300 and a second elastic portion 400 which are oppositely arranged between the base 100 and the pin portion 200 and surround to form a fisheye hole, wherein a first protrusion 310 and a second protrusion 410 which are positioned in the fisheye hole are oppositely arranged at the middle part of the inner sides of the first elastic portion 300 and the second elastic portion 400, a first concave table 311 and a second concave table which are respectively extended to the main body of the first elastic portion 300 are respectively arranged at two sides of the first protrusion 310 corresponding to two ports of the fisheye hole, and a third concave table 411 and a fourth concave table which are respectively extended to the main body of the second elastic portion 400 are respectively arranged at two sides of the second protrusion 410 corresponding to two ports of the fisheye hole.
In specific implementation, the base 100, the pin portion 200, the first elastic portion 300, the first protrusion 310, the second protrusion 410 and the second elastic portion 400 are in an integrated structure, corresponding sides of the first protrusion 310, the second protrusion 410, the first elastic portion 300, the second elastic portion 400 and two ports of the fisheye hole are respectively located on two planes, and the first concave station 311, the second concave station, the third concave station 411 and the fourth concave station are formed by subsequent continuous polishing, so that the production is simple and the efficiency is high; the first concave table 311 and the second concave table reduce the main body of the first elastic part 300 to a certain extent, the third concave table 411 and the fourth concave table reduce the main body of the second elastic part 400 to a certain extent, when the first elastic part 300 and the second elastic part 400 are inserted relative to the circuit board, the two ends of the first bulge 310 at the inner side of the first elastic part 300 are matched with the first concave table 311 and the second concave table, the two ends of the second bulge 410 at the inner side of the second elastic part 400 are matched with the third concave table 411 and the fourth concave table, so that the mechanical property of the insertion process is improved, double wave peaks formed by insertion force when the fisheye terminal is clamped into the circuit board jack are effectively counteracted, the insertion force is balanced, the circuit board is stably inserted, and damage is avoided; after the terminals are inserted into the circuit board, the first protrusion 310 and the second protrusion 410 are closed and supported, so that the bending resistance effect similar to an I-steel structure is better, the service life is longer, and the material fatigue and the force value attenuation are reduced.
In addition to the above, as shown in fig. 1, rounded transition surfaces are provided between the outer surfaces and the front and rear surfaces of the first and second elastic parts 300 and 400. In the implementation, the cross section of the smooth transition surface can be a circular arc with a single radius or can be formed by a plurality of circular arcs with different radiuses, and the smooth transition surface can be conducted and supported with the inside of the insertion hole according to the actual situation, so that the conduction area is increased, and the friction damage formed during pulling and inserting is reduced.
On the basis of the above, as shown in fig. 1 and 2, the first elastic portion 300 includes a first insertion portion 301, a first transition portion 302 and a first holding portion 303 that are sequentially connected, the second elastic portion 400 includes a second insertion portion 401, a second transition portion 402 and a second holding portion 403 that are sequentially connected, the first insertion portion 301, the first transition portion 302 and the first holding portion 303 are respectively in one-to-one correspondence with the second insertion portion 401, the second transition portion 402 and the second holding portion 403, two ends of the first protrusion 310 respectively correspond to one end, close to the first transition portion 302, of the inner sides of the first insertion portion 301 and the first holding portion 303, and two ends of the second protrusion 410 respectively correspond to one end, close to the second transition portion 402, of the inner sides of the second insertion portion 401 and the second holding portion 403.
In a specific implementation, the fisheye terminal generally generates insertion forces in the first insertion portion 301 and the second insertion portion 401 sections when relatively inserted into the circuit board; creating a first insertion force peak at the first insertion portion 301 and first transition portion 302 connecting section; starting the insertion force increase again at the connection section of the first transition 302 and the first holding 303 until a second insertion force peak is generated during the insertion process; the first concave tables 311 and the second concave tables on two sides of the first bulge 310 are used for reducing two insertion force peaks to a certain extent when the first elastic part 300 is inserted, the third concave tables 411 and the fourth concave tables on two sides of the second bulge 410 are used for reducing two insertion force peaks to a certain extent when the second elastic part 400 is inserted, and the insertion force peaks are reduced in alignment, so that the insertion process is effectively and stably carried out.
On the basis of the above, as shown in fig. 2, the two ends of the first protrusion 310 are respectively provided with a first concave circular sliding surface 312 connected to the inner side of the first elastic portion 300, and the two ends of the second protrusion 410 are respectively provided with a second concave circular sliding surface 412 connected to the two ends of the inner side of the second elastic portion 400. In a specific real-time, when the terminal is inserted relative to the circuit board, the first concave circular sliding surface 312 and the second concave circular sliding surface 412 at the two ends of the first protrusion 310 and the second protrusion 410 gradually transition, and when the first elastic part 300 and the second elastic part 400 are supported, the double-peak wave formed by the insertion force in the insertion process is further reduced, and the stability in the insertion process is better.
On the basis of the above, as shown in fig. 1 and 2, the ends of the first protrusions 310 corresponding to the second protrusions 410 are provided with concave arc surfaces. In a specific implementation, the concave arc surface on the corresponding end of the first protrusion 310 and the second protrusion 410 extends from one side of the corresponding end to the other side, after the corresponding ends of the first protrusion 310 and the second protrusion 410 are in relative collision, two sides of the corresponding end of the first protrusion 310 and the second protrusion 410 are in collision, a cavity formed by the concave arc surface is arranged in the middle part, a slight deformation room is provided, the elastic curved surface deformation is recovered well, the fault tolerance is provided, and the damage to the circuit board caused by a slight dimension error is avoided.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (5)
1. The utility model provides a fish-eye terminal, includes base (100), participate in portion (200) and set up relatively in surround first elasticity portion (300) and second elasticity portion (400) that form the fish-eye hole between base (100) with participate in portion (200), its characterized in that: the middle parts of the inner sides of the first elastic part (300) and the second elastic part (400) are oppositely provided with a first bulge (310) and a second bulge (410) which are positioned in the fish eye hole, two sides of the first bulge (310) corresponding to two ports of the fish eye hole are respectively provided with a first concave table (311) and a second concave table which extend to the main body of the first elastic part (300), and two sides of the second bulge (410) corresponding to two ports of the fish eye hole are respectively provided with a third concave table (411) and a fourth concave table which extend to the main body of the second elastic part (400).
2. A fish eye terminal as claimed in claim 1, wherein: smooth transition surfaces are arranged between the outer side surfaces and the front and rear surfaces of the first elastic part (300) and the second elastic part (400).
3. A fish eye terminal as claimed in claim 1, wherein: the first elastic part (300) comprises a first inserting part (301), a first transition part (302) and a first holding part (303) which are sequentially connected, the second elastic part (400) comprises a second inserting part (401), a second transition part (402) and a second holding part (403) which are sequentially connected, the first inserting part (301), the first transition part (302) and the first holding part (303) are respectively in one-to-one correspondence with the second inserting part (401), the second transition part (402) and the second holding part (403), two ends of the first bulge (310) are respectively corresponding to one ends, close to the first transition part (302), of the inner sides of the first inserting part (301) and the first holding part (303), and two ends of the second bulge (410) are respectively corresponding to one ends, close to the second transition part (402), of the inner sides of the second inserting part (401) and the second holding part (403).
4. A fish eye terminal as claimed in claim 1, wherein: the two ends of the first bulge (310) are respectively provided with a first concave round sliding surface (312) connected with the inner side of the first elastic part (300), and the two ends of the second bulge (410) are respectively provided with a second concave round sliding surface (412) connected with the two ends of the inner side of the second elastic part (400).
5. A fish eye terminal as claimed in claim 1, wherein: one end of the first protrusion (310) corresponding to the second protrusion (410) is provided with an inward concave arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211471851.5A CN117293574A (en) | 2022-11-23 | 2022-11-23 | Fisheye terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211471851.5A CN117293574A (en) | 2022-11-23 | 2022-11-23 | Fisheye terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117293574A true CN117293574A (en) | 2023-12-26 |
Family
ID=89257750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211471851.5A Pending CN117293574A (en) | 2022-11-23 | 2022-11-23 | Fisheye terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117293574A (en) |
-
2022
- 2022-11-23 CN CN202211471851.5A patent/CN117293574A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |