CN103426845A - Two-sided independent multi-pin self-locking circuit terminals - Google Patents
Two-sided independent multi-pin self-locking circuit terminals Download PDFInfo
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- CN103426845A CN103426845A CN201310325994XA CN201310325994A CN103426845A CN 103426845 A CN103426845 A CN 103426845A CN 201310325994X A CN201310325994X A CN 201310325994XA CN 201310325994 A CN201310325994 A CN 201310325994A CN 103426845 A CN103426845 A CN 103426845A
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Abstract
The invention provides two-sided independent multi-pin self-locking circuit terminals. The circuit terminals are characterized in that lead terminals are arranged on plastic bases, and self-locking columns and self-locking holes are designed on the plastic bases. During usage, the two independent circuit terminals are mounted through holes of a thick film circuit, locked through the self-locking columns and self-locking holes to form a whole and then welded on the thick film circuit in a hot air reflow soldering mode. According to the circuit terminals, basic performance design requirements can be met, the application of the thick film circuit is compatible with the efficient surface mounting technology (SMT), and the integration level and the reliability of thick film circuit products are improved.
Description
Technical field
The present invention relates to SMD type circuit terminal, relate in particular to the SMT encapsulated circuit.
Background technology
Along with the development of electronic product to portability, miniaturization, networking, high-performance and high density direction, circuit packaging technology and I/O pin count are had higher requirement.Traditional thick film circuit product is used single row direct insert, two kinds of encapsulation technologies of dual-in-line and traditional SMT formula encapsulated circuit, more and more can not meet circuit miniaturization and the efficiently restriction of SMT assembly technical requirement owing to being subject to packaging technology, production cost and small product size, and in complete machine assembling its lead-in wire easily crooked, be out of shape or fracture, technological requirement to assembling is quite strict, and the large-scale popularization and application of thick film circuit is restricted.Fig. 3-1 and Fig. 3-2nd, single-row resistor network product design structural representation, Fig. 4-1 and Fig. 4-2nd, traditional SMT formula encapsulated circuit contour structures schematic diagram, its major defect is 1, product length and exit quantity proportional, volume is large; 2, packaging density is limited; 3, single-row resistor network product application is difficult to realize automatic assembling, and production efficiency is low; Although tradition SMT formula encapsulated circuit can be realized automatic assembling, its lead-out wire is soft, and coplane degree is poor; 4, thick film circuit tow sides pin is not independent.
Summary of the invention
The purpose of this invention is to provide a kind of two-sided many pins of independence band latching circuit terminal, can not only meet the key property designing requirement, make application and the efficient SMT mounting technology of thick film circuit compatible mutually simultaneously, and improved integrated level and the reliability of thick film circuit product.
The technical scheme that realizes the object of the invention is: a kind of two-sided many pins of independence band latching circuit terminal, it is characterized in that being connected to each other together by the hole on substrate by two circuit terminals, each circuit terminal comprises plastic feet, on each plastic feet, lead terminal is housed, be designed with self-locking pillar and self-locking hole on each plastic feet, wherein each exit of lead terminal is independently.
Two of a plastic feet edge designs have the self-locking pillar therein, in the center of plastic feet, are designed with self-locking hole.
Two edge designs at the another one plastic feet have self-locking hole, in the center of plastic feet, are designed with the self-locking pillar.
Structurally, double-edged 48 leading-out terminals of this circuit terminal are absolute construction.From general thick film circuit tow sides leading-out terminal with cassette lead-in wire interconnect, independent different mutually, when unrelated for ceramic substrate thick film circuit tow sides, the connected mode of conventional lead-in wire can not meet instructions for use.Therefore, we have designed two-sided many pins of independence band latching circuit terminal according to the characteristics of product.Each exit of circuit terminal is independently, double-edged each exit on thick film circuit independently can be drawn.And the use of circuit terminal is to have adopted the mode of SMT to be welded on thick film circuit.Consider that two circuit terminal bases are working of plastics, length is 42mm, so grow and narrow working of plastics, can produce deformation during through high temperature, the reliability of product has not just had assurance like this, the coplane degree of same product also is difficult to assurance, and we punch on substrate for this reason, and two circuit terminals are connected to each other together by the hole on substrate.Adopt Interference Fit Design on circuit terminal, made two circuit terminals that certain pining down be arranged each other; Escape material mouthful in the diverse location increase of working of plastics again, reduced the thermal deformation under the high temperature action.
The Application and Development of two-sided many pins of independence band latching circuit terminal has obtained affirming of user, with its double-sided circuit independent isolating, advantage simple for assembly process, has occupied certain status in communications industry, and application surface is also progressively enlarging.Simultaneously, the succeeding in developing of two-sided many pins of independence band latching circuit terminal, for the connected mode of thick film industry exit has been started a new developing direction.
The accompanying drawing explanation
Fig. 1-1st, one of structural representation of the present invention.
Fig. 1-2 is two of structural representation of the present invention.
Fig. 2-1st, used the product schematic diagram of two-sided many pins of independence band latching circuit terminal.
Fig. 2-2nd, the end view of Fig. 2-1.
Fig. 3-1st, single row direct insert resistor network product design schematic diagram.
Fig. 3-2nd, the end view of Fig. 3-1.
Fig. 4-1st, traditional SMT formula encapsulated circuit product design schematic diagram.
Fig. 4-2nd, the end view of Fig. 4-1.
Embodiment
As shown in Fig. 1-1 and Fig. 1-2,24 lead terminals 3 are housed on plastic feet 1, two of a plastic feet 1 edge designs have self-locking pillar 4 therein, in the center of plastic feet, are designed with self-locking hole 2; Two edge designs at another one plastic feet 1 have self-locking hole 2, in the center of plastic feet 1, are designed with self-locking pillar 4.
Integrated circuit terminal overall dimension is that 41.5mm * 3.0mm * 1.8mm(does not comprise the self-locking device size).On plastic feet by the spacing of 1.27mm arranged 24 hole ，Zai hole that lead terminals are installed around designed some and escaped material mouthful, the stress while being used for discharging high temperature process; Two edges and center at plastic feet are designed with self-locking pillar or self-locking hole, distortional stress when self-locking pillar and self-locking hole are used for resisting high temperature process after installing.Circuit terminal is the terminal that connects thick film circuit and application circuit, after 24 lead terminals 3 are installed on plastic feet 1, through unified, compresses, and makes the solder side of all lead terminals 3 in same horizontal plane.
When two-sided many pins of independence band latching circuit terminal is used, the two sides pad of thick film circuit all needs Printing Paste, then be placed on special-purpose Revolving disc, first will with the circuit terminal of 2 self-locking pillars, install on thick film circuit, the upset thick film circuit, to with the circuit terminal of 1 self-locking pillar, install on thick film circuit again, the thick film circuit that installs a whole set of circuit terminal is put on special-purpose compression tooling the self-locking device of circuit terminal is compressed, finally by hot air reflux, weld circuit terminal is welded on thick film circuit, form final finished product.
It should be noted that: the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment, the present invention is had been described in detail, for a person skilled in the art, its technical scheme that still can put down in writing previous embodiment is modified, or part technical characterictic is wherein replaced on an equal basis.
Within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. two-sided many pins of independence band latching circuit terminal, it is characterized in that being connected to each other together by the hole on substrate by two circuit terminals, each circuit terminal comprises plastic feet (1), lead terminal (3) is housed on each plastic feet (1), be designed with self-locking pillar (4) and self-locking hole (2) on each plastic feet (1), wherein each exit of lead terminal (3) is independently.
2. two-sided many pins of independence band latching circuit terminal as claimed in claim 1, it is characterized in that two edge designs of a plastic feet (1) have self-locking pillar (4) therein, in the center of plastic feet (1), be designed with self-locking hole (2).
3. two-sided many pins of independence band latching circuit terminal as claimed in claim 1, it is characterized in that, in two edge designs of another one plastic feet (1), self-locking hole (2) is arranged, in the center of plastic feet (1), be designed with self-locking pillar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325994.XA CN103426845B (en) | 2013-07-30 | 2013-07-30 | Two-sided independence many pins band latching circuit terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310325994.XA CN103426845B (en) | 2013-07-30 | 2013-07-30 | Two-sided independence many pins band latching circuit terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103426845A true CN103426845A (en) | 2013-12-04 |
| CN103426845B CN103426845B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310325994.XA Active CN103426845B (en) | 2013-07-30 | 2013-07-30 | Two-sided independence many pins band latching circuit terminal |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06318486A (en) * | 1993-05-10 | 1994-11-15 | Dia Semikon Syst Kk | Ic part mounting pin socket and collective socket |
| CN2532661Y (en) * | 2002-03-12 | 2003-01-22 | 威盛电子股份有限公司 | Spring medium unit for fixing packaged device on printed circuit board |
| US6525411B1 (en) * | 1998-05-30 | 2003-02-25 | Hyundai Electronics Industries Co., Ltd. | Semiconductor package and method of fabricating the same |
| CN101370355A (en) * | 2007-08-15 | 2009-02-18 | 华为技术有限公司 | Module, circuit board assembly, communication equipment and module assembly method |
| CN201332093Y (en) * | 2008-11-04 | 2009-10-21 | 环旭电子股份有限公司 | Circuit baseboard and circuit board module |
| CN103138067A (en) * | 2011-11-30 | 2013-06-05 | 第一精工株式会社 | Circuit-terminal connecting device |
-
2013
- 2013-07-30 CN CN201310325994.XA patent/CN103426845B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06318486A (en) * | 1993-05-10 | 1994-11-15 | Dia Semikon Syst Kk | Ic part mounting pin socket and collective socket |
| US6525411B1 (en) * | 1998-05-30 | 2003-02-25 | Hyundai Electronics Industries Co., Ltd. | Semiconductor package and method of fabricating the same |
| CN2532661Y (en) * | 2002-03-12 | 2003-01-22 | 威盛电子股份有限公司 | Spring medium unit for fixing packaged device on printed circuit board |
| CN101370355A (en) * | 2007-08-15 | 2009-02-18 | 华为技术有限公司 | Module, circuit board assembly, communication equipment and module assembly method |
| CN201332093Y (en) * | 2008-11-04 | 2009-10-21 | 环旭电子股份有限公司 | Circuit baseboard and circuit board module |
| CN103138067A (en) * | 2011-11-30 | 2013-06-05 | 第一精工株式会社 | Circuit-terminal connecting device |
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| Publication number | Publication date |
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| CN103426845B (en) | 2016-01-13 |
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