CN116387869A - Method for solving problem of large current transmission of fish-eye terminal and fish-eye terminal - Google Patents
Method for solving problem of large current transmission of fish-eye terminal and fish-eye terminal Download PDFInfo
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- CN116387869A CN116387869A CN202310363047.3A CN202310363047A CN116387869A CN 116387869 A CN116387869 A CN 116387869A CN 202310363047 A CN202310363047 A CN 202310363047A CN 116387869 A CN116387869 A CN 116387869A
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- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 claims abstract description 33
- 238000003466 welding Methods 0.000 claims abstract description 21
- 241000251468 Actinopterygii Species 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 description 19
- 230000037431 insertion Effects 0.000 description 19
- 238000010438 heat treatment Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/58—Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
- H01R12/585—Terminals having a press fit or a compliant portion and a shank passing through a hole in the printed circuit board
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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Abstract
The invention discloses a method for solving the problem of heavy current transmission of a fisheye terminal and the fisheye terminal, wherein the method for solving the problem of heavy current transmission of the fisheye terminal adopts a fisheye terminal with a double-layer overlapped structure, the fisheye terminal is characterized in that a first fisheye terminal and a second fisheye terminal are mutually overlapped and fixed together, the lower ends of the first fisheye terminal and/or the second fisheye terminal are bent, the first fisheye pin at the lower end of the first fisheye terminal and the second fisheye pin at the lower end of the second fisheye terminal are distributed at intervals in two rows, the number of the first fisheye pin and the second fisheye pin is at least two, the fisheye terminal increases the number of the fisheye pins on the premise of unchanged width, and then carries out multichannel current division on heavy current, so that the current flowing through each fisheye pin becomes smaller, heat is reduced, the heavy current transmission of a single terminal is realized, single-side shaking of the fisheye terminal is prevented, the fisheye terminal is easy to loosen without a welding process is effectively avoided, the production cost is reduced, and the reliability of electric conduction is ensured.
Description
Technical field:
the invention relates to the technical field of new energy, in particular to a method for solving the problem of high-current transmission of a fish-eye terminal and the fish-eye terminal.
The background technology is as follows:
the high-current connector is widely applied to the fields of electric automobiles, electric forklifts, general power supplies, medical equipment, solar energy, new energy sources and the like. The high-current connector needs to transmit higher current, so that the terminals of the high-current connector need to bear larger current, so that the terminals are prevented from being broken down and burnt out, and the charging or data connection stability of the electronic product is ensured.
Currently, high current connectors typically employ fisheye terminals that are electrically connected to a circuit board by engaging PTH holes on the PCB. The mode is different from the traditional welding mode, and because the welding-free mode is adopted, the use of soldering flux is reduced, adverse reaction in a high-temperature tin furnace is avoided, and the fisheye terminal has detachability and is more convenient to use.
Referring to fig. 1, a prior art fisheye terminal 200 includes a plate-shaped base 201, an opposite insertion portion 202 extending upward along an upper end of the base 201, and a plurality of fisheye pins 203 formed at a lower end of the base 201, wherein the fisheye pins 203 are configured to be inserted and fixed with PTH holes on a PCB board and form electrical conduction. The fish eye terminal 200 has the following defects: the fisheye terminal 200 has a single-layer structure, and only a row of fisheye pins 203 can be arranged, and after the fisheye pins 203 are inserted and fixed with PTH holes on a PCB, the fisheye terminal 200 is easy to shake on one side, so that the fisheye terminal 200 is easy to loosen, and the conductive reliability is affected; in addition, the limited number of the fisheye pins 203 provided that the width of the fisheye terminal 200 is limited results in that when a large current is conducted, the fisheye terminal 200 cannot transmit a larger current because the fisheye pins 203 of the fisheye terminal 200 have a smaller number and can split a larger current, which generates a larger amount of heat.
In view of this, the present inventors have proposed the following means.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art and provides a method for solving the problem of large current transmission of a fish-eye terminal and the fish-eye terminal.
In order to solve the technical problems, the invention adopts the following first technical scheme: the method for solving the problem of high-current transmission of the fish-eye terminal adopts a fish-eye terminal with a double-layer overlapped structure, the fish-eye terminal is characterized in that a first fish-eye terminal and a second fish-eye terminal are overlapped and fixed with each other, the lower ends of the first fish-eye terminal and/or the second fish-eye terminal are bent, the first fish-eye pins at the lower end of the first fish-eye terminal and the second fish-eye pins at the lower end of the second fish-eye terminal are distributed in two rows at intervals, the number of the first fish-eye pins and the number of the second fish-eye pins are at least two, the number of the fish-eye pins is increased under the premise that the width of the fish-eye terminal is unchanged, and then the large current is split in a multi-channel mode, so that the current flowing through each fish-eye pin is reduced, heating is reduced, and the high-current transmission of a single terminal is realized.
In the above technical solution, the first fisheye terminal includes a first base, a first pair of insertion parts formed by extending upward along an upper end of the first base, and at least two first fisheye pins formed at a lower end of the first base; the second fisheye terminal comprises a second base part, a second pair of inserting parts and at least two second fisheye pins, wherein the second pair of inserting parts are formed by extending upwards along the upper end of the second base part, the second fisheye pins are formed at the lower end of the second base part, and the lower end of the second base part is outwards bent and then downwards bent into a Z shape, so that the second fisheye pins in a row are distributed with the first fisheye pins in a row at intervals; the first pair of inserting parts and the second pair of inserting parts are mutually overlapped and fixed.
Furthermore, in the above technical solution, the manufacturing method of the fisheye terminal includes: the method comprises the steps of respectively stamping and forming a first fisheye terminal and a second fisheye terminal of a single piece, overlapping the first fisheye terminal and the second fisheye terminal, and fixing the first fisheye terminal and the second fisheye terminal into a whole in a riveting mode or a welding mode to manufacture the fisheye terminal.
Furthermore, in the above technical solution, the manufacturing method of the fisheye terminal includes: firstly, a plurality of first fish-eye terminals and second fish-eye terminals which are distributed in a mirror image mode and are connected with each other are formed in a metal plate in a stamping mode, wherein two adjacent first fish-eye terminals or second fish-eye terminals are connected through a material bridge; then the first fish-eye terminal and the second fish-eye terminal are folded in half to be overlapped, and are fixed into a whole in a riveting mode or a welding mode to form a plurality of fish-eye terminals connected through a material bridge; finally, the material bridge is cut off to form a plurality of independent fish-eye terminals.
Furthermore, in the above technical scheme, the size, shape and structure of the first fisheye terminal and the second fisheye terminal are the same, wherein the lower ends of the first fisheye terminal and the second fisheye terminal are bent to be zigzag and distributed in a mirror symmetry manner.
In order to solve the technical problems, the invention adopts the following second technical scheme: the fish-eye terminal comprises a first fish-eye terminal and a second fish-eye terminal which are mutually overlapped and fixed together, wherein the lower end of the first fish-eye terminal is provided with at least two first fish-eye pins; the lower end of the second fisheye terminal is provided with at least two second fisheye pins; the lower ends of the first fisheye terminal and/or the second fisheye terminal are bent, so that the first fisheye pin and the second fisheye pin are distributed in two rows at intervals.
In the above technical solution, the first fisheye terminal includes a first base, a first pair of insertion parts formed by extending upward along an upper end of the first base, and at least two first fisheye pins formed at a lower end of the first base; the second fisheye terminal comprises a second base part, a second pair of inserting parts and at least two second fisheye pins, wherein the second pair of inserting parts are formed by extending upwards along the upper end of the second base part, the second fisheye pins are formed at the lower end of the second base part, and the lower end of the second base part is outwards bent and then downwards bent into a Z shape, so that the second fisheye pins in a row are distributed with the first fisheye pins in a row at intervals; the first pair of inserting parts and the second pair of inserting parts are mutually overlapped and fixed.
In the above technical solution, the first fisheye terminal includes a first base, a first pair of insertion parts formed by extending upward along an upper end of the first base, and at least two first fisheye pins formed at a lower end of the first base; the lower end of the second base part is outwards bent and then downwards bent into a Z shape; the second fisheye terminal comprises a second base part, a second pair of inserting parts and at least two second fisheye pins, wherein the second pair of inserting parts are formed by extending upwards along the upper end of the second base part, the second fisheye pins are formed at the lower end of the second base part, the lower end of the second base part is outwards bent and then downwards bent into a Z shape, the first pair of inserting parts and the second pair of inserting parts are mutually overlapped and fixed, and the rows of second fisheye pins and the rows of first fisheye pins are in mirror symmetry interval distribution.
Furthermore, in the above technical scheme, the first pair of inserting portions and the second pair of inserting portions are fixed into a whole in a riveting mode or a welding mode, wherein the outer sides of the upper end plate surfaces of the first pair of inserting portions and the second pair of inserting portions are respectively provided with an arc-shaped guide surface.
In the above technical solution, the first fisheye terminal and the second fisheye terminal are two independent individuals; or, the first fish-eye terminal and the second fish-eye terminal are of an integrated structure, and the top ends of the first fish-eye terminal and the second fish-eye terminal are integrally connected and folded in half.
By adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the method for solving the problem of high-current transmission of the fish-eye terminal is to conduct electricity through the first fish-eye terminal and the second fish-eye terminal which are mutually overlapped and fixed together to form the fish-eye terminal with a double-layer overlapped structure, so that the thickness is increased, and the capability of conducting high current is improved; meanwhile, the lower ends of the first fish-eye terminals and/or the second fish-eye terminals are bent, so that the first fish-eye pins at the lower ends of the first fish-eye terminals and the second fish-eye pins at the lower ends of the second fish-eye terminals are distributed in two rows at intervals, the method not only can ensure that the fish-eye terminals can be stably inserted and fixed on a PCB (printed circuit board) through the first fish-eye pins and the second fish-eye pins, but also can prevent the fish-eye terminals from being easy to shake unilaterally, further can effectively avoid the fish-eye terminals from being easy to loosen, does not need a welding process, reduces the production cost, and also ensures the reliability of electric conduction; according to the method, the number of the fish-eye pins can be increased on the premise of unchanged width, so that multichannel current distribution is carried out on high current, the current flowing through each fish-eye pin becomes small, heating is reduced, high current transmission of a single terminal is realized, and larger current can be transmitted to meet different use requirements, and further market competitiveness is improved.
2. The fish-eye terminal is provided with the first fish-eye pins and the second fish-eye pins which are distributed at intervals, so that the fish-eye terminal can be stably inserted and fixed on the PCB through the first fish-eye pins and the second fish-eye pins, the fish-eye terminal is prevented from being easy to shake unilaterally, the fish-eye terminal can be effectively prevented from being easy to loosen, a welding process is not needed, the production cost is reduced, the conductive reliability is ensured, and various vibration environments of an automobile are tolerated; the number of the fish eye pins can be increased on the premise of unchanged width, and then the large current is split in a multi-channel mode, so that the current flowing through each fish eye pin is reduced, heating is reduced, large current transmission of a single terminal is realized, larger current can be transmitted, different use requirements are met, and the market competitiveness is improved.
Description of the drawings:
fig. 1 is a front view of a prior art fish eye terminal;
fig. 2 is a perspective view of a first construction of the fish eye terminal of the present invention;
fig. 3 is a perspective view of a first structure of the fish eye terminal of the present invention from a second perspective;
fig. 4 is a perspective view of a third view of the first structure of the fish-eye terminal of the present invention;
fig. 5 is a cross-sectional view of a first construction of the fish eye terminal of the present invention;
FIG. 6 is a step diagram of a first method of making a fish eye terminal of the present invention;
FIG. 7 is a step diagram of a second method of making a fish eye terminal of the present invention;
fig. 8 is a perspective view of a fish-eye terminal made by a second method of making a fish-eye terminal of the present invention;
fig. 9 is a perspective view of a second construction of the fish eye terminal of the present invention;
fig. 10 is an exploded perspective view of a second construction of the fish eye terminal of the present invention;
fig. 11 is a structural view of the assembly of the fish eye terminal and the PCB board of the present invention;
fig. 12 is a perspective view of a solder-free glue shell connector formed by assembling fish eye terminals according to the present invention;
fig. 13 is a cross-sectional view of a solder-free glue shell connector formed by assembling fisheye terminals according to the invention.
The specific embodiment is as follows:
the invention will be further described with reference to specific examples and figures.
As shown in fig. 2-10, the method for solving the problem of high current transmission of the fisheye terminal according to the present invention is to adopt a fisheye terminal 100 with a double-layer overlapping structure to conduct electricity, the fisheye terminal 100 is to fix the first and second fisheye terminals 1 and 2 together in an overlapping manner, and bend the lower ends of the first fisheye terminal 1 and/or the second fisheye terminal 2, so that the first fisheye pin 13 at the lower end of the first fisheye terminal 1 and the second fisheye pin 23 at the lower end of the second fisheye terminal 2 are distributed at intervals in two rows, and the number of the first fisheye pin 13 and the second fisheye pin 23 is at least two, so that the number of fisheye pins is increased under the premise that the width of the fisheye terminal 100 is unchanged, and then the multi-channel current is split for the high current, so that the current flowing through each fisheye pin is reduced, heat is reduced, and the high current transmission of a single terminal is realized. That is, the first and second fisheye terminals 1 and 2 are mutually overlapped and fixed to form the fisheye terminal 100 with a double-layer overlapped structure for conducting electricity, so that the thickness is increased, and the capability of conducting large current is improved; meanwhile, the lower ends of the first fisheye terminal 1 and/or the second fisheye terminal 2 are bent, so that the first fisheye pins 13 at the lower end of the first fisheye terminal 1 and the second fisheye pins 23 at the lower end of the second fisheye terminal 2 are distributed at intervals in two rows, the method not only can ensure that the fisheye terminal 100 can be stably inserted and fixed on a PCB (printed circuit board) through the first fisheye pins 13 and the second fisheye pins 23, but also can prevent the fisheye terminal 200 from unilateral shaking, further can effectively prevent the fisheye terminal 200 from loosening easily, does not need a welding process, reduces the production cost, and also ensures the reliability of electric conduction; according to the method, the number of the fish-eye pins can be increased on the premise of unchanged width, so that multichannel current distribution is carried out on high current, the current flowing through each fish-eye pin becomes small, heating is reduced, high current transmission of a single terminal is realized, and larger current can be transmitted to meet different use requirements, and further market competitiveness is improved.
In the present embodiment, the number of the first fisheye terminal 1 and the second fisheye terminal 2 is 5.
The structure and the manufacturing method of the fish-eye terminal 100 are specifically described below.
Referring to fig. 2-6, a first manufacturing method of the fisheye terminal 100 is as follows: the first fisheye terminal 1 and the second fisheye terminal 2 are first formed by punching, and the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and fixed into a whole by riveting or welding to form the fisheye terminal 100.
The first fisheye terminal 1 and the second fisheye terminal 2 have different structures, specifically, the first fisheye terminal 1 includes a first base 11, a first pair of insertion parts 12 formed by extending upwards along the upper end of the first base 11, and at least two first fisheye pins 13 formed at the lower end of the first base 11; the second fisheye terminal 2 comprises a second base 21, a second pair of insertion parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, wherein the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, so that the rows of second fisheye pins 23 are distributed at intervals with the rows of first fisheye pins 13; the first pair of inserting portions 12 and the second pair of inserting portions 22 are mutually overlapped and fixed. That is, the first fisheye terminal 1 has a straight plate structure, wherein the first pair of insertion parts 12, the first base part 11, and the first fisheye pin 13 are integrally connected and on one plane. The second fisheye terminal 2 is in a bent structure, wherein the second pair of inserting portions 22 and the upper portion of the second base portion 21 are on the same plane, the lower end of the second base portion 21 is bent outwards and then bent downwards to form a zigzag shape, the lower end of the second base portion 21 is bent outwards by an angle a and then bent downwards by an angle b, so as to form a zigzag shape, the value of the angle a is equal to the value of the angle b, the rows of second fisheye pins 23 are vertically downward and are not on the same plane with the second pair of inserting portions 22, and the plane of the second fisheye pins 23 is parallel to the plane of the second pair of inserting portions 22.
Or, the first fisheye terminal 1 and the second fisheye terminal 2 have the same size, shape and structure, specifically, referring to fig. 8-10, the first fisheye terminal 1 includes a first base 11, a first pair of insertion parts 12 formed by extending upwards along the upper end of the first base 11, and at least two first fisheye pins 13 formed at the lower end of the first base 11; the lower end of the first base 11 is bent outwards and then bent downwards into a Z shape, wherein the lower end of the first base 11 is bent outwards by an angle a and then bent downwards by an angle b to form a Z shape, and the value of the angle a is equal to the value of the angle b; the second fisheye terminal 2 comprises a second base 21, a second pair of insertion parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, wherein the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, the lower end of the second base 21 is bent outwards by an angle a and then bent downwards by an angle b to form a zigzag shape, and the value of the angle a is equal to the value of the angle b; the first pair of inserting parts 12 and the second pair of inserting parts 22 are mutually overlapped and fixed, and the second fisheye pins 23 in the row and the first fisheye pins 13 in the row are distributed at intervals in a mirror symmetry mode. That is, in the manufacturing process, only any one of the first fisheye terminal 1 and the second fisheye terminal 2 needs to be manufactured, the first opposite inserting portion 12 of the first fisheye terminal 1 and the second opposite inserting portion 22 of the second fisheye terminal 2 are overlapped and fixed in a mirror symmetry manner, and the rows of second fisheye pins 23 and the rows of first fisheye pins 13 are distributed in a mirror symmetry manner at intervals.
The second manufacturing method of the fisheye terminal 100 is as follows: referring to fig. 7-8, a plurality of first fisheye terminals 1 and second fisheye terminals 2 which are distributed in mirror images and connected with each other are formed by stamping on a metal plate, wherein two adjacent first fisheye terminals 1 or second fisheye terminals 2 are connected through a bridge 101; then the first fish-eye terminal 1 and the second fish-eye terminal 2 are folded in half to be overlapped and fixed into a whole in a riveting or welding mode to form a plurality of fish-eye terminals 100 connected through a material bridge 101; finally, the material bridge 101 is cut off to form a plurality of independent fish-eye terminals 100, and the manufacturing method of the fish-eye terminals 100 can generate a plurality of independent fish-eye terminals 100 at one time, so that the production efficiency is higher, and as the first fish-eye terminal 1 and the second fish-eye terminal 2 are of an integrated structure, the fish-eye terminals 100 manufactured by the method are folded and fixed by each other, the structure of the fish-eye terminals 100 manufactured by the method is more stable, precise alignment and superposition can be realized, and the quality of the manufactured fish-eye terminals 100 is ensured.
The first fisheye terminal 1 and the second fisheye terminal 2 have different structures, but the top end of the first fisheye terminal 1 and the top end of the second fisheye terminal 2 are integrally connected, specifically, the first fisheye terminal 1 includes a first base 11, a first pair of insertion parts 12 formed by extending upwards along the upper end of the first base 11, and at least two first fisheye pins 13 formed at the lower end of the first base 11; the second fisheye terminal 2 comprises a second base 21, a second pair of inserting parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, wherein the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, the lower end of the second base 21 is bent outwards by an angle a and then bent downwards by an angle b to form a zigzag shape, and the value of the angle a is equal to the value of the angle b, so that the rows of second fisheye pins 23 and the rows of first fisheye pins 13 are distributed at intervals; the first and second inserting parts 12 and 22 are folded in half along the upper end connection part thereof, so as to be mutually overlapped and fixed, that is, the top end of the first inserting part 12 is integrally connected with the top end of the second inserting part 22. That is, the first fisheye terminal 1 has a straight plate structure, wherein the first pair of insertion parts 12, the first base part 11, and the first fisheye pin 13 are integrally connected and on one plane. The second fisheye terminal 2 is in a bent structure, wherein the second pair of inserting portions 22 and the upper portion of the second base portion 21 are on a plane, and the lower end of the second base portion 21 is bent outwards and then bent downwards into a zigzag shape, so that the rows of second fisheye pins 23 are vertically downward and are not on the same plane with the second pair of inserting portions 22, but the plane of the second fisheye pins 23 is parallel to the plane of the second pair of inserting portions 22.
Or, the first fisheye terminal 1 and the second fisheye terminal 2 have the same size, shape and structure, and the top end of the first fisheye terminal 1 and the top end of the second fisheye terminal 2 are integrally connected, specifically, the first fisheye terminal 1 includes a first base 11, a first pair of insertion parts 12 formed by extending upwards along the upper end of the first base 11, and at least two first fisheye pins 13 formed at the lower end of the first base 11; the lower end of the second base 21 is bent outwards and then downwards into a Z shape, wherein the lower end of the first base 11 is bent outwards by an angle a and then downwards by an angle b to form a Z shape, and the value of the angle a is equal to the value of the angle b; the second fisheye terminal 2 comprises a second base 21, a second pair of inserting parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, wherein the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, the lower end of the second base 21 is bent outwards by an angle a and then bent downwards by an angle b so as to form a zigzag shape, the value of the angle a is equal to the value of the angle b, the first pair of inserting parts 12 and the second pair of inserting parts 22 are mutually overlapped and fixed, the top ends of the first pair of inserting parts 12 and the top ends of the second pair of inserting parts 22 are integrally connected, and the rows of second fisheye pins 23 and the rows of first fisheye pins 13 are distributed in mirror symmetry at intervals. That is, in the manufacturing process, only one mold set is needed to manufacture any one of the first fisheye terminal 1 and the second fisheye terminal 2, and the first opposite inserting part 12 of the first fisheye terminal 1 and the second opposite inserting part 22 of the second fisheye terminal 2 are folded and overlapped in the later period, and the rows of second fisheye pins 23 and the rows of first fisheye pins 13 are distributed in a mirror symmetry and interval mode.
When the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and riveted, as shown in fig. 5, the riveting ring 14 of the first fisheye terminal 1 passes through the riveting hole 24 of the second fisheye terminal 2, and the end of the riveting ring 14 is riveted to form a flanging 15 and pressed on the periphery of the countersink 25 at the port of the riveting hole 24, so that the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and fixed together.
That is, the above two methods for manufacturing the fisheye terminal 100 can manufacture fisheye terminals having two different structures.
In summary, the method for solving the problem of high current transmission of the fisheye terminal according to the present invention is to fix the first and second fisheye terminals 1 and 2 in a stacked manner to form the fisheye terminal 100 with a double-layer stacked structure for conducting electricity, thereby increasing the thickness and improving the capability of conducting high current; meanwhile, the lower ends of the first fisheye terminal 1 and/or the second fisheye terminal 2 are bent, so that the first fisheye pins 13 at the lower end of the first fisheye terminal 1 and the second fisheye pins 23 at the lower end of the second fisheye terminal 2 are distributed at intervals in two rows, the method not only can ensure that the fisheye terminal 100 can be stably inserted and fixed on a PCB (printed circuit board) through the first fisheye pins 13 and the second fisheye pins 23, but also can prevent the fisheye terminal 200 from being easy to shake in a unilateral manner, further can effectively avoid the fisheye terminal 200 from being easy to loosen, does not need a welding process, reduces the production cost, and also ensures the reliability of electric conduction; according to the method, the number of the fish-eye pins can be increased on the premise of unchanged width, so that multichannel current distribution is carried out on high current, the current flowing through each fish-eye pin becomes small, heating is reduced, high current transmission of a single terminal is realized, and larger current can be transmitted to meet different use requirements, and further market competitiveness is improved.
Referring to fig. 2-10, the invention further provides a fisheye terminal, which comprises two first fisheye terminals 1 and second fisheye terminals 2 that are mutually overlapped and fixed together, wherein the lower end of the first fisheye terminal 1 is provided with at least two first fisheye pins 13; the lower end of the second fisheye terminal 2 is provided with at least two second fisheye pins 23; the lower ends of the first fisheye terminal 1 and/or the second fisheye terminal 2 are bent, so that the first fisheye pin 13 and the second fisheye pin 23 are distributed in two rows at intervals. The fish-eye terminal 100 is provided with two rows of first fish-eye pins 13 and second fish-eye pins 23 which are distributed at intervals, so that the fish-eye terminal 100 can be stably inserted and fixed on a PCB (printed circuit board) through the first fish-eye pins 13 and the second fish-eye pins 23, single-side shaking of the fish-eye terminal 200 is prevented, the fish-eye terminal 200 is prevented from being loosened easily, a welding process is not needed, the production cost is reduced, the conductive reliability is also ensured, and various vibration environments of an automobile are tolerated; the number of the fish eye pins can be increased on the premise of unchanged width, and then the large current is split in a multi-channel mode, so that the current flowing through each fish eye pin is reduced, heating is reduced, large current transmission of a single terminal is realized, larger current can be transmitted, different use requirements are met, and the market competitiveness is improved.
In the present embodiment, the number of the first fisheye pin 13 and the second fisheye pin 23 is 5.
The fish eye terminal 100 comprises at least the following two structures:
the first structure is: referring to fig. 2-5, the first fisheye terminal 1 includes a first base 11, a first pair of inserting parts 12 formed by extending upwards along the upper end of the first base 11, and at least two first fisheye pins 13 formed at the lower end of the first base 11; the second fisheye terminal 2 comprises a second base 21, a second pair of insertion parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, wherein the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, so that the rows of second fisheye pins 23 are distributed at intervals with the rows of first fisheye pins 13; the first pair of inserting parts 12 and the second pair of inserting parts 22 are mutually overlapped and fixed, and the first pair of inserting parts 12 and the second pair of inserting parts 22 are fixed into a whole through a riveting mode or a welding mode.
The second structure is as follows: referring to fig. 9-10, the sizes, shapes and structures of the first fisheye terminal 1 and the second fisheye terminal 2 are the same, wherein the lower ends of the first fisheye terminal 1 and the second fisheye terminal 2 are bent to be zigzag and distributed in a mirror symmetry manner. Specifically, the first fisheye terminal 1 includes a first base 11, a first pair of insertion parts 12 formed by extending upward along an upper end of the first base 11, and at least two first fisheye pins 13 formed at a lower end of the first base 11; the lower end of the second base part 21 is bent outwards and then bent downwards into a Z shape; the second fisheye terminal 2 includes a second base 21, a second pair of insertion parts 22 formed by extending upwards along the upper end of the second base 21, and at least two second fisheye pins 23 formed at the lower end of the second base 21, where the lower end of the second base 21 is bent outwards and then bent downwards into a zigzag shape, the first pair of insertion parts 12 and the second pair of insertion parts 22 are mutually overlapped and fixed, and the second fisheye pins 23 in a row and the first fisheye pins 13 in a row are distributed at mirror symmetry intervals, and the first pair of insertion parts 12 and the second pair of insertion parts 22 are fixed into a whole by riveting or welding. In the manufacturing process, only any one of the first fisheye terminal 1 and the second fisheye terminal 2 is required to be manufactured, the first opposite inserting part 12 of the first fisheye terminal 1 and the second opposite inserting part 22 of the second fisheye terminal 2 are in mirror symmetry superposition fixation in the later period, and the rows of second fisheye pins 23 and the rows of first fisheye pins 13 are in mirror symmetry interval distribution, so that the die cost can be reduced, the manufacturing steps are reduced, the manufacturing efficiency is further improved, the product production period is shortened, the cost is reduced, and the market competitiveness is improved.
When the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and riveted, as shown in fig. 5, the riveting ring 14 of the first fisheye terminal 1 passes through the riveting hole 24 of the second fisheye terminal 2, and the end of the riveting ring 14 is riveted to form a flanging 15 and pressed on the periphery of the countersink 25 at the port of the riveting hole 24, so that the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and fixed together.
The outer sides of the upper end plate surfaces of the first inserting part 12 and the second inserting part 22 are respectively provided with an arc-shaped guiding surface, and the arc-shaped guiding surfaces play a good guiding role when the fisheye terminal 100 is inserted with a mating connector, so that the fisheye terminal 100 can be quickly and stably inserted with the mating connector, and the use is more convenient.
When the first fisheye terminal 1 and the second fisheye terminal 2 are two independent units, as shown in fig. 6, the first fisheye terminal 1 and the second fisheye terminal 2 are first formed by punching, and then the first fisheye terminal 1 and the second fisheye terminal 2 are stacked and fixed into a whole by riveting or welding to form the fisheye terminal 100. Or, the first fisheye terminal 1 and the second fisheye terminal 2 are in an integral structure, and the top ends of the first fisheye terminal 1 and the second fisheye terminal 2 are integrally connected and folded in half, and in combination with the method shown in fig. 7-8, when the fisheye terminal is manufactured, a plurality of first fisheye terminals 1 and second fisheye terminals 2 which are distributed in mirror images and are connected with each other are firstly punched and formed on one metal plate, wherein two adjacent first fisheye terminals 1 or second fisheye terminals 2 are connected through a material bridge 101; then the first fish-eye terminal 1 and the second fish-eye terminal 2 are folded in half to be overlapped and fixed into a whole in a riveting or welding mode to form a plurality of fish-eye terminals 100 connected through a material bridge 101; finally, the material bridge 101 is cut off to form a plurality of independent fish-eye terminals 100, and the manufacturing method of the fish-eye terminals 100 can generate a plurality of independent fish-eye terminals 100 at one time, so that the production efficiency is higher, and as the first fish-eye terminal 1 and the second fish-eye terminal 2 are of an integrated structure, the fish-eye terminals 100 manufactured by the method are folded and fixed by each other, the structure of the fish-eye terminals 100 manufactured by the method is more stable, precise alignment and superposition can be realized, and the quality of the manufactured fish-eye terminals 100 is ensured.
In summary, the fisheye terminal 100 of the present invention has two rows of first fisheye pins 13 and second fisheye pins 23 that are distributed at intervals, so that the fisheye terminal 100 can be ensured to be stably inserted and fixed on a PCB board through the first fisheye pins 13 and the second fisheye pins 23, the fisheye terminal 200 is prevented from being easy to shake unilaterally, further the fisheye terminal 200 is effectively prevented from being easy to loosen, a welding process is not required, the production cost is reduced, the conductive reliability is ensured, and various vibration environments of an automobile are tolerated; the number of the fish eye pins can be increased on the premise of unchanged width, and then the large current is split in a multi-channel mode, so that the current flowing through each fish eye pin is reduced, heating is reduced, large current transmission of a single terminal is realized, larger current can be transmitted, different use requirements are met, and the market competitiveness is improved.
When the fish-eye terminal 100 is applied, a plurality of the fish-eye terminals 100 can be arranged on the PCB 300 in a one-row or more than one-row distribution mode, and the fish-eye terminal is shown in combination with fig. 11, wherein each of the fish-eye terminals 100 can be directly pressed into a PTH (through hole 301) on the PCB 300 through the first fish-eye pins 13 and the second fish-eye pins 23 to form a fish-eye terminal array combination, so that different use requirements are met, the assembly structure is stable and reliable, the looseness is not easy, the welding process is not needed, the production cost is reduced, and various vibration environments of an automobile are resisted, and the fish-eye terminal is particularly suitable for being used as a connector of a new energy automobile.
The inventive fish-eye terminal 100 may also be combined in the plastic base 41 to form a solderless plastic shell connector 4 with the structure shown in fig. 12-13, wherein the number of the fish-eye terminals 100 is two.
It is understood that the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, but rather is to be accorded the full scope of all such modifications and equivalent structures, features and principles as set forth herein.
Claims (10)
1. A method for solving the problem of large current transmission of a fish-eye terminal is characterized by comprising the following steps: according to the method, a fish-eye terminal (100) with a double-layer overlapped structure is adopted, the first fish-eye terminal (1) and the second fish-eye terminal (2) are overlapped and fixed together, the lower end of the first fish-eye terminal (1) and/or the lower end of the second fish-eye terminal (2) is bent, the first fish-eye pins (13) at the lower end of the first fish-eye terminal (1) and the second fish-eye pins (23) at the lower end of the second fish-eye terminal (2) are distributed at intervals in two rows, the number of the first fish-eye pins (13) and the number of the second fish-eye pins (23) are at least two, the number of the fish-eye pins is increased on the premise that the width of the fish-eye terminal (100) is unchanged, and then multichannel current distribution is carried out on large currents flowing through each fish-eye pin, heat is reduced, and large current transmission of a single terminal is realized.
2. A method for solving the problem of high current transmission of fish-eye terminals according to claim 1, wherein: the first fisheye terminal (1) comprises a first base (11), a first pair of inserting parts (12) which are formed by extending upwards along the upper end of the first base (11), and at least two first fisheye pins (13) which are formed at the lower end of the first base (11); the second fisheye terminal (2) comprises a second base (21), a second pair of inserting parts (22) which are formed by extending upwards along the upper end of the second base (21) and at least two second fisheye pins (23) which are formed at the lower end of the second base (21), wherein the lower end of the second base (21) is outwards bent and then downwards bent into a Z shape, so that the second fisheye pins (23) in a row are distributed with the first fisheye pins (13) in a row at intervals; the first pair of inserting parts (12) and the second pair of inserting parts (22) are mutually overlapped and fixed.
3. A method for solving the problem of high current transmission of fish-eye terminals according to claim 1, wherein: the manufacturing method of the fish-eye terminal (100) comprises the following steps: the first fisheye terminal (1) and the second fisheye terminal (2) are respectively punched and formed, and the first fisheye terminal (1) and the second fisheye terminal (2) are overlapped and fixed into a whole in a riveting mode or a welding mode to manufacture the fisheye terminal (100).
4. A method for solving the problem of high current transmission of fish-eye terminals according to claim 1, wherein: the manufacturing method of the fish-eye terminal (100) comprises the following steps: firstly, a plurality of first fisheye terminals (1) and second fisheye terminals (2) which are distributed in a mirror image mode and are connected with each other are formed in a metal plate in a stamping mode, wherein two adjacent first fisheye terminals (1) or second fisheye terminals (2) are connected through a material bridge (101); then the first fisheye terminal (1) and the second fisheye terminal (2) are folded in half to be overlapped, and are fixed into a whole in a riveting mode or a welding mode to form a plurality of fisheye terminals (100) connected through a material bridge (101); finally, the bridge (101) is cut off to form a plurality of independent fish-eye terminals (100).
5. A method for solving the problem of high current transmission of fish-eye terminals according to claim 3 or 4, characterized in that: the size, the shape and the structure of the first fisheye terminal (1) and the second fisheye terminal (2) are the same, wherein the lower ends of the first fisheye terminal (1) and the second fisheye terminal (2) are bent to be Z-shaped and distributed in a mirror symmetry mode.
6. A fish eye terminal, characterized in that: the fish-eye socket comprises two first fish-eye terminals (1) and second fish-eye terminals (2) which are mutually overlapped and fixed together, wherein at least two first fish-eye pins (13) are arranged at the lower end of the first fish-eye terminal (1); the lower end of the second fisheye terminal (2) is provided with at least two second fisheye pins (23); the lower ends of the first fisheye terminal (1) and/or the second fisheye terminal (2) are bent, so that the first fisheye pins (13) and the second fisheye pins (23) are distributed in two rows at intervals.
7. The method for solving the problem of high current transmission of the fish-eye terminal according to claim 6, wherein: the first fisheye terminal (1) comprises a first base (11), a first pair of inserting parts (12) which are formed by extending upwards along the upper end of the first base (11), and at least two first fisheye pins (13) which are formed at the lower end of the first base (11); the second fisheye terminal (2) comprises a second base (21), a second pair of inserting parts (22) which are formed by extending upwards along the upper end of the second base (21) and at least two second fisheye pins (23) which are formed at the lower end of the second base (21), wherein the lower end of the second base (21) is outwards bent and then downwards bent into a Z shape, so that the second fisheye pins (23) in a row are distributed with the first fisheye pins (13) in a row at intervals; the first pair of inserting parts (12) and the second pair of inserting parts (22) are mutually overlapped and fixed.
8. The method for solving the problem of high current transmission of the fish-eye terminal according to claim 6, wherein: the first fisheye terminal (1) comprises a first base (11), a first pair of inserting parts (12) which are formed by extending upwards along the upper end of the first base (11), and at least two first fisheye pins (13) which are formed at the lower end of the first base (11); the lower end of the second base (21) is outwards bent and then downwards bent into a Z shape; the second fisheye terminal (2) comprises a second base (21), a second pair of inserting parts (22) which are formed by extending upwards along the upper end of the second base (21) and at least two second fisheye pins (23) which are formed at the lower end of the second base (21), wherein the lower end of the second base (21) is outwards bent and then downwards bent into a Z shape, the first pair of inserting parts (12) and the second pair of inserting parts (22) are mutually overlapped and fixed, and the second fisheye pins (23) in a row and the first fisheye pins (13) in a row are in mirror symmetry interval distribution.
9. A terminal according to claim 6 or 7, wherein: the first pair of inserting parts (12) and the second pair of inserting parts (22) are fixed into a whole in a riveting mode or a welding mode, wherein arc-shaped guide surfaces are arranged on the outer sides of the upper end plate surfaces of the first pair of inserting parts (12) and the second pair of inserting parts (22).
10. A terminal according to claim 6 or 7, wherein: the first fish-eye terminal (1) and the second fish-eye terminal (2) are two independent individuals; or, the first fisheye terminal (1) and the second fisheye terminal (2) are of an integrated structure, and the top ends of the first fisheye terminal and the second fisheye terminal are integrally connected and folded in half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310363047.3A CN116387869A (en) | 2023-04-06 | 2023-04-06 | Method for solving problem of large current transmission of fish-eye terminal and fish-eye terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310363047.3A CN116387869A (en) | 2023-04-06 | 2023-04-06 | Method for solving problem of large current transmission of fish-eye terminal and fish-eye terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116387869A true CN116387869A (en) | 2023-07-04 |
Family
ID=86963024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310363047.3A Pending CN116387869A (en) | 2023-04-06 | 2023-04-06 | Method for solving problem of large current transmission of fish-eye terminal and fish-eye terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116387869A (en) |
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2023
- 2023-04-06 CN CN202310363047.3A patent/CN116387869A/en active Pending
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