CN102562764A - Stud for circuit boards - Google Patents
Stud for circuit boards Download PDFInfo
- Publication number
- CN102562764A CN102562764A CN2012100323545A CN201210032354A CN102562764A CN 102562764 A CN102562764 A CN 102562764A CN 2012100323545 A CN2012100323545 A CN 2012100323545A CN 201210032354 A CN201210032354 A CN 201210032354A CN 102562764 A CN102562764 A CN 102562764A
- Authority
- CN
- China
- Prior art keywords
- adsorption section
- screw bolt
- circuit board
- double
- adsorption
- 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
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- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
The invention relates to a stud for circuit boards, which comprises a cylindrical adsorption part and a cylindrical attaching part axially extending out from one end of the adsorption part. The diameter of the attaching part is smaller than that of the adsorption part; a threaded hole penetrating through the attaching part and provided with threads is axially arranged in the attaching part; and the threaded hole extends into the adsorption part but does not penetrate through the adsorption part. As a blind hole is adopted as the threaded hole, the only thing to do for a chip mounter is to absorb the adsorption part during vacuum adsorption and insert the attaching part into a positioning hole which is prearranged on the circuit board. Therefore a cover board is not required to be covered on the bolt in advance, the cover board is not required to be removed when threads of two circuit boards are closely fitted, the trouble in the prior art that the cover board is covered and removed can be saved, the production efficiency is improved, and simultaneously the damage to the circuit boards and the bolt is avoided when the cover board is removed.
Description
Technical field
The present invention relates to the circuit board that a kind of SMT of being applicable to technology mounts and use double-screw bolt
Background technique
SMT is the abbreviation of surface installation technique or surface mounting technology Surface Mounted Technology; Be most popular a kind of technology or technology in the present electronics assembling industry, it is the specified position that utilizes pull of vacuum that workpiece absorption is mounted on to be pasted the space of a whole page through chip mounter.The SMT technology has advantages such as paster speed is fast, accurate positioning.
Generally all double-screw bolt can be set on
circuit board, another piece circuit board etc. that makes top object relatively can be so as to separating with circuit board, and combine with screw.These double-screw bolts mount on the circuit board through the SMT technology.The circuit board of existing technology generally all is in the middle of spiro column, to offer the screwed through hole that runs through up and down with double-screw bolt.Mount in the process at SMT; At first must the cover plate that through hole is covered be set, mount in the time of need another piece circuit board being realized the screw thread close-fitting of two circuit boards through double-screw bolt after the completion, also want artificial cover plate is removed at an end of spiro column; This not only time-consuming taking a lot of work, also fragile double-screw bolt and circuit board
Summary of the invention
technical problem to be solved by this invention is the deficiency that overcomes existing technology, provides a kind of improved circuit board to use double-screw bolt, so that SMT mounts.
For solving above technical problem, the present invention takes following technological scheme:
a kind of circuit board is used double-screw bolt, comprises that the adsorption section of cylindricality and the cylindricality that the end from the adsorption section extends axially out mount portion, the said diameter that mounts the diameter of portion less than the adsorption section; Said mount to offer vertically in the portion run through the portion of mounting and screwed tapped hole, said tapped hole extends in said adsorption section and does not connect the adsorption section.
preferably, said adsorption section is coaxial with the said portion that mounts.
preferably, said tapped hole is coaxial with the said portion that mounts.
preferably, the degree of depth of said tapped hole in said adsorption section accounts for 1/2 ~ 4/5 of said adsorption section height.
preferably, the said outer wall that mounts portion is provided with many perpendicular lines.
Because the enforcement of above technological scheme, the present invention compared with prior art has following advantage:
circuit board of the present invention is used double-screw bolt, because tapped hole is a blind hole, does not connect whole double-screw bolt, only need hold the adsorption section during chip mounter vacuum suction, the portion of mounting is inserted to be opened in advance in the positioning hole on the circuit board get final product.Do not need on double-screw bolt, to add a cover in advance cover plate like this; When two circuit board screw thread close-fittings, need cover plate not removed yet; Therefore can save the trouble of adding a cover in the existing technology and removing cover plate, improve manufacturing efficiency, when also having avoided removing cover plate simultaneously to the damage of circuit board and double-screw bolt.
Description of drawings
Below in conjunction with accompanying drawing and concrete mode of execution the present invention is done further detailed explanation:
Fig. 1 is the plan view of double-screw bolt of the present invention;
Fig. 2 is the plan view of double-screw bolt of the present invention;
Fig. 3 is the main sectional view of double-screw bolt of the present invention;
Fig. 4 mounts schematic representation for double-screw bolt of the present invention on circuit board;
wherein: 1, adsorption section; 2, mount portion; 20, perpendicular line; 3, tapped hole; 4, circuit board.
Embodiment
are done further detailed explanation below in conjunction with concrete embodiment to the present invention, but are not limited to these embodiments.
referring to Fig. 1 ~ 4, and the cylindricality that the circuit board of present embodiment comprises the adsorption section 1 of cylindricality with double-screw bolt and an end of 1 extends axially out from the adsorption section mounts portion 2, and mounts the diameter of the diameter of portion 2 less than adsorption section 1; Mount to offer vertically in the portion 2 and run through the portion of mounting 2 and screwed tapped hole 3, tapped hole 3 extends in adsorption section 1 and does not connect adsorption section 1.In double-screw bolt, just formed a threaded blind hole like this.
In
present embodiment, adsorption section 1, mount portion 2 and tapped hole 3 threes are coaxial.
The degree of depth of tapped hole 3 can be offered according to concrete use needs, and in general, the aspect ratio adsorption section 1 that mounts portion 2 is short, and the degree of depth h of tapped hole 3 in adsorption section 1
1
Account for the height h of adsorption section 1
0
Between 1/2 ~ 4/5.
mount the back double-screw bolt and on circuit board 4, welds more firmly for making, and the outer wall that present embodiment mounts portion 2 is provided with many perpendicular lines 20, more to help scolding tin.
present embodiment double-screw bolt is because tapped hole 3 is blind holes; When utilizing the SMT technology to mount; Chip mounter directly holds adsorption section 1 end face at tapped hole 3 back sides, just can double-screw bolt be sucked up, and the portion that mounts 2 with double-screw bolt inserts in the positioning hole of offering in advance on the circuit board 4 then.Thereby removed the trouble of on double-screw bolt, adding a cover and removing from, improved manufacturing efficiency, when having avoided removing cover plate to the damage of circuit board and double-screw bolt.
More than the present invention has been done detailed description; Its purpose is to let the personage that is familiar with this art can understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention
Claims (5)
1. a circuit board is used double-screw bolt; It is characterized in that: said double-screw bolt comprises that the adsorption section (1) of cylindricality and the cylindricality that the end from said adsorption section (1) extends axially out mount portion (2), and the said diameter that mounts the diameter of portion (2) less than said adsorption section (1); Said mount to offer vertically in the portion (2) run through said portion (2) and the screwed tapped hole (3) of mounting, said tapped hole (3) extends in said adsorption section (1) and does not connect said adsorption section (1).
2. circuit board according to claim 1 is used double-screw bolt, it is characterized in that: said adsorption section (1) is coaxial with the said portion (2) that mounts.
3. circuit board according to claim 1 and 2 is used double-screw bolt, it is characterized in that: said tapped hole (3) is coaxial with the said portion (2) that mounts.
4. circuit board according to claim 1 is used double-screw bolt, it is characterized in that: the degree of depth of said tapped hole (3) in said adsorption section (1) accounts for 1/2 ~ 4/5 of said adsorption section (1) height.
5. circuit board according to claim 1 is used double-screw bolt, it is characterized in that: the said outer wall that mounts portion (2) is provided with many perpendicular lines (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100323545A CN102562764A (en) | 2012-02-14 | 2012-02-14 | Stud for circuit boards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100323545A CN102562764A (en) | 2012-02-14 | 2012-02-14 | Stud for circuit boards |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562764A true CN102562764A (en) | 2012-07-11 |
Family
ID=46409048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100323545A Pending CN102562764A (en) | 2012-02-14 | 2012-02-14 | Stud for circuit boards |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102562764A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996603A (en) * | 2012-10-08 | 2013-03-27 | 苏州鑫捷顺五金机电有限公司 | Mobile phone nut |
| CN104879366A (en) * | 2014-02-28 | 2015-09-02 | 神讯电脑(昆山)有限公司 | Anti-penetration nut |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6109848A (en) * | 1999-06-09 | 2000-08-29 | Emhart Inc. | Plastic nut with molded washer |
| US20040076491A1 (en) * | 2002-10-16 | 2004-04-22 | Chiang Chun Lin | Female screw device pickable by a SMT automatic machine |
| CN201439793U (en) * | 2009-03-07 | 2010-04-21 | 鸿富锦精密工业（深圳）有限公司 | Welding screw nut |
| CN201599299U (en) * | 2009-12-17 | 2010-10-06 | 康佳集团股份有限公司 | Welded nut |
| CN202005057U (en) * | 2010-12-27 | 2011-10-05 | 昆山博雅精密五金有限公司 | Supporting post for circuit board |
| CN102230492A (en) * | 2011-06-30 | 2011-11-02 | 苏州工业园区新凯精密五金有限公司 | Stud nut and gasket combined piece |
| CN202475933U (en) * | 2012-02-14 | 2012-10-03 | 昆山博雅精密五金有限公司 | Stud used for circuit board |
-
2012
- 2012-02-14 CN CN2012100323545A patent/CN102562764A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6109848A (en) * | 1999-06-09 | 2000-08-29 | Emhart Inc. | Plastic nut with molded washer |
| US20040076491A1 (en) * | 2002-10-16 | 2004-04-22 | Chiang Chun Lin | Female screw device pickable by a SMT automatic machine |
| CN201439793U (en) * | 2009-03-07 | 2010-04-21 | 鸿富锦精密工业（深圳）有限公司 | Welding screw nut |
| CN201599299U (en) * | 2009-12-17 | 2010-10-06 | 康佳集团股份有限公司 | Welded nut |
| CN202005057U (en) * | 2010-12-27 | 2011-10-05 | 昆山博雅精密五金有限公司 | Supporting post for circuit board |
| CN102230492A (en) * | 2011-06-30 | 2011-11-02 | 苏州工业园区新凯精密五金有限公司 | Stud nut and gasket combined piece |
| CN202475933U (en) * | 2012-02-14 | 2012-10-03 | 昆山博雅精密五金有限公司 | Stud used for circuit board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996603A (en) * | 2012-10-08 | 2013-03-27 | 苏州鑫捷顺五金机电有限公司 | Mobile phone nut |
| CN104879366A (en) * | 2014-02-28 | 2015-09-02 | 神讯电脑(昆山)有限公司 | Anti-penetration nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |