CN206865829U - A kind of solderless contact pin structure - Google Patents
A kind of solderless contact pin structure Download PDFInfo
- Publication number
- CN206865829U CN206865829U CN201720790016.6U CN201720790016U CN206865829U CN 206865829 U CN206865829 U CN 206865829U CN 201720790016 U CN201720790016 U CN 201720790016U CN 206865829 U CN206865829 U CN 206865829U
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- CN
- China
- Prior art keywords
- contact pin
- stitch
- circuit board
- fixture block
- hole
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Abstract
A kind of solderless contact pin structure, the size for the insertion site that stitch is inserted in circuit board datum hole are more than datum hole diameter, and interference fit is formed between datum hole；Through hole is also set up in the middle part of the insertion site of stitch, is set respectively in the upper and lower side of through hole and tilts the upper fixture block stretched out and lower fixture block, the end of upper fixture block and lower fixture block is butted on the upper and lower surface of circuit board respectively, from sandwich circuit board.The stitch of the solderless contact pin makes it have elasticity by the setting of through hole, can be more easily inserted into datum hole；Formd between stitch and circuit board, between fixture block and circuit board in multiple directions intersect it is spacing, drastically increase the bonding strength between contact pin and circuit board, also improve the stability of equipment work, manufacture craft requirement and the manufacture difficulty of circuit board of circuit board datum hole are reduced simultaneously, and reduce production cost.
Description
Technical field
Circuit board contact pin is the utility model is related to, nothing on circuit board is not fixed on by welding more particularly to a kind of
Weld the structure of contact pin.
Background technology
Circuit board is a kind of supporter of electronic component and the carrier of electronic component electrical connection, and it is exhausted using plate base
Edge material isolates cleaved surface copper foil conductive layer so that and electric current flows along pre-designed route in various components, with
Complete the functions such as acting, amplification, decay, modulation, demodulation, coding.By being arranged at electricity between circuit board and electronic component
Datum hole on the plate of road is attached with the contact pin being arranged on electronic component, is specially inserted the stitch of contact pin in datum hole, so
Afterwards by being welded and fixed.But the technological requirement of welding is higher, welder's culture is also more difficult, and welding process can produce largely
Waste gas and waste residue, easily immerse environment and workshop, influence workers ' health.To solve this problem, now with a kind of solderless
Contact pin, i.e., without being fixed on the contact pin on circuit board by welding, stitch is arranged to straight slightly larger than datum hole by this kind of contact pin
Footpath, connection is realized by the interference fit between stitch and datum hole.But the connection between this solderless contact pin and circuit board is strong
Spend relatively low, easily occur inclined side or even to come off, and contact pin rocks and easilys lead to datum hole and damage, and then influence circuit is steady
Qualitative and security, while it is high for the size of datum hole and the thickness requirement of through-hole plating, so as to add circuit board
Production cost.
The content of the invention
The utility model aims to provide a kind of and high solderless contact pin structure of circuit board bonding strength, steady to improve its connection
It is qualitative, while reduce the making requirement to circuit board datum hole.
Solderless contact pin structure described in the utility model, including contact pin main body, the bottom of contact pin main body are provided with stitch, stitch
The size of insertion site in insertion circuit board datum hole is more than datum hole diameter, and interference fit is formed between datum hole；In stitch
Through hole is also set up in the middle part of insertion site, is set respectively in the upper and lower side of through hole and tilts the upper fixture block stretched out and lower fixture block, upper card
The end of block and lower fixture block is butted on the upper and lower surface of circuit board respectively, from sandwich circuit board.
Solderless contact pin structure described in the utility model, the size of contact pin stitch are slightly larger than circuit board datum hole diameter, work as pin
When in pin insertion datum hole, interfixed between the two by interference fit.During stitch inserts datum hole, first, stitch
End enters datum hole, then descends fixture block to be in contact with datum hole, then descends fixture block to be suppressed by datum hole inwall and shunk to through hole direction,
Active force in screen resilience after lower fixture block passes completely through datum hole ejects；Now, one side stitch forms interference with datum hole and matched somebody with somebody
Close, on the other hand, lower fixture block has passed through datum hole and its end is butted on the lower surface of circuit board, and the end of upper fixture block is then just supported
In the upper surface of circuit board, the insertion work of stitch is thus completed.The stitch of the solderless contact pin makes its tool by the setting of through hole
It is flexible, it can be more easily inserted into datum hole；Datum hole radially spacing is formd between stitch and circuit board after insertion, and
Then form spacing on datum hole axial direction between two fixture blocks and circuit board, the intersection that thus form in multiple directions is spacing, pole
The earth improves bonding strength between contact pin and circuit board, also improves the stability of equipment work, simultaneously as contact pin with
The raising of bonding strength between circuit board, so as to reduce the requirement of the manufacture craft of circuit board datum hole, and then reduce circuit board
Manufacture difficulty, reduce production cost.
Brief description of the drawings
Fig. 1 is the structural representation of solderless contact pin structure.
Fig. 2 is the side structure schematic view of solderless contact pin structure shown in Fig. 1.
Fig. 3 is the structural representation of another solderless contact pin structure.
Fig. 4,5 be solderless contact pin structure shown in Fig. 1 mounting structure schematic diagram.
Fig. 6 is the structural representation of stitch.
Embodiment
As shown in figures 1 to 6.
A kind of solderless contact pin structure, including contact pin main body 1, the bottom of contact pin main body are provided with stitch 2, stitch insertion circuit board
The size of insertion site in 6 datum holes 7 is more than datum hole diameter, and interference fit is formed between datum hole；In the insertion site of stitch
Middle part also set up through hole 3, through hole upper and lower side respectively set tilt stretch out upper fixture block 41 and lower fixture block 42, upper fixture block and
The end of lower fixture block is butted on the upper and lower surface of circuit board respectively, from sandwich circuit board.
As shown in Figure 1, 2, when inserting stitch, by contact pin stitch alignment circuit plate datum hole, then stitch inserts along datum hole.
During this, first, the end of stitch enters datum hole, then descends fixture block to be in contact with datum hole, then descends fixture block by datum hole inwall
Compacting and shunk to through hole direction, contact pin continues into until lower fixture block passes completely through after datum hole the bullet under the active force of screen resilience
Go out；Now, one side stitch is formed with datum hole and is interference fitted, and on the other hand, lower fixture block is butted on electricity through datum hole and its end
The lower surface of road plate, and the end of upper fixture block is then just butted on the surface of circuit board, as shown in Figure 4,5, thus completes stitch
Insert work.
As shown in Fig. 2 the side of stitch 2 is provided with upper fixture block 41 and lower fixture block 42, this kind of structure is ensureing bonding strength
Under the premise of can simplify structure；It is equally possible that as shown in figure 3, the both sides of stitch 2 are respectively provided with upper fixture block 41 and lower card
Block 42, bonding strength can further be improved by the setting of both sides fixture block.Specific selection can optionally, such as electronic component
Depending on size, weight or specific installation requirement, so as to meet different use demands.
Described solderless contact pin structure, stitch 2 include the inserting paragraph 22 at middle part, the changeover portion 21 of connecting contact pin main body 1, and
Through the guide section 23 of circuit board datum hole；Guide section is up big and down small, and its larger-size one end is connected with inserting paragraph；Such as Fig. 6
Shown, guide section extends downwardly from inserting paragraph end, and is gradually tapered up from two lateral centres, forms tapered cross-section so that
Contact pin is more prone to be directed at and insert datum hole.In addition, the size of one end of the changeover portion connecting contact pin main body 1 of stitch 2 is compared with the other end
Small, it can be arc or taper, so that whole stitch forms the shape for being similar to " O " shape, so as to more preferable
Deformability, and then stitch is preferably inserted and fixed in datum hole.
Described solderless contact pin structure, the gap between upper and lower fixture block end both sides and the inwall of through hole 3 are inserted more than stitch 2
Enter the magnitude of interference between position and datum hole.As shown in fig. 6, the size of gap d is more than the magnitude of interference between stitch and datum hole, due to
Gap is more than the magnitude of interference, so as to which when contact pin inserts datum hole, through hole can provide enough deformation spaces, contact pin is smoothly inserted,
Without because gap it is too small, deformation space can not be provided, and the problem of stuck contact pin can not insert occurs.
Stitch 2 and circuit board mating part are straight contact so that stitch 2 keeps Maximum Contact area with circuit board and increased
Insert steadiness of the pin in circuit board.
Described solderless contact pin structure, is provided with pin shoulder 5 between contact pin main body 1 and stitch 2, pin shoulder extends from contact pin main body
And go out, and bearing of trend is both perpendicular to contact pin main body axial direction and the axial direction of through hole 3；The direction of pin shoulder perpendicular to interference fit face with
And the force direction between circuit board and fixture block, it is spacing on three directions so as to be formd with them, preferably avoid contact pin
The possibility of run-off the straight.
Claims (7)
1. a kind of solderless contact pin structure, including contact pin main body, the bottom of contact pin main body is provided with stitch, it is characterised in that：Stitch is inserted
The size for entering the insertion site in circuit board datum hole is more than datum hole diameter, and interference fit is formed between datum hole；In inserting for stitch
Enter and through hole is also set up in the middle part of position, set respectively in the upper and lower side of through hole and tilt the upper fixture block stretched out and lower fixture block, upper fixture block
The upper and lower surface of circuit board is butted on respectively with the end of lower fixture block, from sandwich circuit board.
2. solderless contact pin structure according to claim 1, it is characterised in that：The side of stitch is provided with upper fixture block and lower card
Block.
3. solderless contact pin structure according to claim 1, it is characterised in that：The both sides of stitch respectively be provided with upper fixture block and
Lower fixture block.
4. solderless contact pin structure according to claim 1, it is characterised in that：Stitch includes the inserting paragraph at middle part, and connection is inserted
The changeover portion of pin main body, and the guide section through circuit board datum hole；Guide section is up big and down small, and its larger-size one end is with inserting
Enter section connection.
5. solderless contact pin structure according to claim 4, it is characterised in that：One end of stitch changeover portion connecting contact pin main body
Size it is small compared with the other end.
6. solderless contact pin structure according to claim 1, it is characterised in that：Upper and lower fixture block end both sides and through-hole wall
Between gap be more than the magnitude of interference between stitch insertion site and datum hole.
7. solderless contact pin structure according to claim 1, it is characterised in that：Pin shoulder is provided between contact pin main body and stitch,
Pin shoulder extends from contact pin main body, and bearing of trend is axially axial with through hole both perpendicular to contact pin main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790016.6U CN206865829U (en) | 2017-07-03 | 2017-07-03 | A kind of solderless contact pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790016.6U CN206865829U (en) | 2017-07-03 | 2017-07-03 | A kind of solderless contact pin structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865829U true CN206865829U (en) | 2018-01-09 |
Family
ID=60829657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720790016.6U Active CN206865829U (en) | 2017-07-03 | 2017-07-03 | A kind of solderless contact pin structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206865829U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454440A (en) * | 2018-11-27 | 2019-03-12 | 周继东 | A kind of screw feeding device |
| CN112004317A (en) * | 2020-08-14 | 2020-11-27 | 苏州浪潮智能科技有限公司 | PCB and chip press-mounting structure thereof |
-
2017
- 2017-07-03 CN CN201720790016.6U patent/CN206865829U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454440A (en) * | 2018-11-27 | 2019-03-12 | 周继东 | A kind of screw feeding device |
| CN109454440B (en) * | 2018-11-27 | 2020-10-16 | 周继东 | Screw loading attachment |
| CN112004317A (en) * | 2020-08-14 | 2020-11-27 | 苏州浪潮智能科技有限公司 | PCB and chip press-mounting structure thereof |
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