CN205160918U - Double -sided circuit board - Google Patents
Double -sided circuit board Download PDFInfo
- Publication number
- CN205160918U CN205160918U CN201520925576.9U CN201520925576U CN205160918U CN 205160918 U CN205160918 U CN 205160918U CN 201520925576 U CN201520925576 U CN 201520925576U CN 205160918 U CN205160918 U CN 205160918U
- Authority
- CN
- China
- Prior art keywords
- circuit
- double
- pin
- guide ring
- circuit board
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a circuit board. A double -sided circuit board, includes the circuit edition of books physically, the positive and negative both sides surface of the circuit edition of books body all is equipped with the circuit, the circuit is equipped with and link up the plug -in hole of the circuit edition of books body, wear to be equipped with the tin cover among the plug -in hole. The utility model provides a can reduce when welding through components and parts participate in the transmission give components and parts thermal, participate in and also can fix double -sided circuit board with plug -in hole together, solved among the current circuit board welding process that the heat that the transmission gave components and parts is many through participating in, joint strength difference and the stress point of components and parts between with the circuit board is single and the electric contact failure's of easy production that leads to problem.
Description
Technical field
The utility model relates to circuit board, particularly relates to a kind of double-sided PCB.
Background technology
Circuit board is for fixing electronic devices and components and the plank be electrically connected in electrical equipment.China Patent No. be 2015203357241, Authorization Notice No. is CN204733458U, name is called in the patent document of " a kind of on-deformable printed circuit board (PCB) " and namely discloses a kind of circuit board.The basic structure of circuit board comprises circuit board body, and the surface of circuit board body is provided with circuit.Single-sided circuit board only arranges circuit in the side of wiring board body, and double-sided PCB then all arranges circuit in the both side surface of wiring board body.In order to the pin of supplied for electronic components and parts inserts, as China Patent No. be 2011200082107, Authorization Notice No. is CN201947534U, name to be called in the patent document of " a kind of high after footpath than multilayer board " namely disclosed, need to arrange the through insert hole to wiring board body on the line.During use, the pin of components and parts is inserted from one end away from circuit of insert hole, then by scolding tin, pin is welded together with circuit.
Existing wiring board has the following disadvantages when connecting with components and parts: the heat produced during welding can pass to components and parts along the pin of components and parts in large quantities, easily causes components and parts quality to decline; The part that pin can not be positioned at insert hole during welding is fixed together with insert hole, thus causes the bonding strength between components and parts and wiring board poor; Components and parts extracted power time, stress point is all positioned at the junction of pin with circuit, easily produces electrical connection bad phenomenon.
Utility model content
The utility model provides a kind of that pass to the heat of components and parts through the pin of components and parts when can reduce welding, that pin also can be fixed together with insert hole double-sided PCB, solves in existing welding circuit board process and passes to that the heat of components and parts is many through pin, components and parts are with the bonding strength difference between circuit board and stress point is single and problem that easy generation electrical contact that is that cause is bad.
Above technical problem is solved by following technical proposal: a kind of double-sided PCB, comprise circuit board body, the positive and negative both side surface of described circuit board body is all provided with circuit, and described circuit is provided with the insert hole of through described circuit board body, is equipped with tin cover in described insert hole.During use, the pin of components and parts is inserted from one end away from circuit of insert hole, then by tin soldering machine, pin is welded together with circuit, heat in welding process is absorbed by tin cover when the pin of components and parts conducts, the heat passing to components and parts is reduced, thus reduces the impact on components and parts.Tin cover absorbs heat and melts, and after fusing, the part that pin is positioned at wiring board with insert hole is also welded together to form inner solder joint, and internal welding point plays the effect of the bonding strength improved between components and parts and wiring board; The formation of inner solder joint can be played when extracting components and parts, and auxiliary pin carries out stressed with the junction of circuit, to reduce the probability producing electrical connection bad phenomenon.
As preferably, be provided with some copper pins in the wall of described tin cover, the circumference distribution that described copper pin overlaps along tin axially extends, and described copper pin is exposed to described tin cover near one end of described circuit.The efficiency that tin cover imports heat can be improved, tin cover in welding process can be more reliably melted.
As preferably, described copper pin is connected to together with described circuit.Reliability when heat conduction is overlapped to tin can be improved further.
As preferably, be provided with guide ring in described insert hole, described tin overlaps between described guide ring and circuit, and the inner peripheral surface of described guide ring is the conical surface that the little outer diameter of inner diameter is large.Convenient when components and parts can be made to insert, can prevent again manually being undertaken in the process of welding by soldering gun, outflow and pin can not being welded together with wiring board body after the fusing of tin cover.Note: during human weld, components and parts are in the below of circuit board is the top that components and parts are positioned at circuit board when tin soldering machine welds.
As preferably, be interference fit between described guide ring and insert hole.Can easily and effectively prevent guide ring from deviating from from insert hole.
As preferably, described guide ring is provided with the flexible retaining pin preventing the pin of the electric elements be plugged in spliced eye from extracting from the one end away from circuit.When inserting pin, pin makes retaining pin open and produces and dodge.Resistance when then the increase of retaining pin is extracted when extracting, thus make pin be not easy to be pulled out, play the effect improving electrical connection reliability.
As preferably, described retaining pin is arranged at the inner face of described guide ring.Can tin overlap aperture less time carry out layout, improve convenience during circuit-board laying-out.
As preferably, described retaining pin is positioned on the same conical surface along the medial surface of the radial direction of guide ring and the inner peripheral surface of described guide ring.Easy to make, compact conformation.
The utility model has following advantage: the heat in welding process can be absorbed by tin cover when the pin of components and parts conducts, the heat passing to components and parts is reduced, thus reduces the impact on components and parts; Tin cover absorbs heat and the part that pin is positioned at wiring board with insert hole also can be welded together to form inner solder joint after producing fusing, and internal welding point plays the effect of the bonding strength improved between components and parts and wiring board; When the formation of inner solder joint can be played and extract components and parts, auxiliary pin carries out stressed with the junction of circuit, thus is not easy to produce electrical connection bad phenomenon.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the using state schematic diagram of embodiment one.
Fig. 3 is the structural representation of the utility model embodiment two.
In figure: circuit board body 1, circuit 2, insert hole 3, tin cover 4, inner solder joint 41, copper pin 42, copper pin near the inner peripheral surface 71 of one end 421 of circuit, components and parts 5, pin 51, outside solder joint 6, guide ring 7, guide ring, retaining pin 72, retaining pin along the medial surface 721 of the radial direction of guide ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is further described.
Embodiment one, see Fig. 1, a kind of double-sided PCB, comprises circuit board body 1.The positive and negative both side surface of circuit board body 1 is all provided with circuit 2.Circuit 2 is provided with insert hole 3.The through circuit board body 1 of insert hole 3 and circuit 2.Tin cover 4 is equipped with in insert hole 3.
See Fig. 2, during use, the pin 51 of components and parts 5 is inserted from one end away from circuit of insert hole 3.Then pin 51 and circuit 2 are welded together and form outside solder joint 6.Absorbed by tin cover 4 when heat pin 51 in welding process conducts, tin cover 4 absorbs heat and produces fusing, after tin cover 4 fusing, the part that pin 51 is positioned at wiring board with insert hole 3 is also welded together to form inner solder joint 41.
Embodiment two, the difference with embodiment one is:
See Fig. 3, in the jacket wall of tin cover 4, be provided with some copper pins 42.The circumference distribution that copper pin 42 overlaps along tin.The axis that copper pin 42 overlaps along tin extends.Copper pin is exposed to tin cover 4 near one end 421 of circuit.Copper pin is connected to together with circuit 2 thermal conductivity near one end 421 of circuit.Guide ring 7 is provided with in insert hole 3.Tin cover 4 is between guide ring 7 and circuit 2.The inner peripheral surface 71 of guide ring is the conical surface that the little outer diameter of inner diameter is large.It is interference fit between guide ring 7 and insert hole 3.Guide ring 7 is provided with flexible retaining pin 72.Retaining pin 72 is arranged at the inner face of guide ring 7.Retaining pin is positioned on the same conical surface along the medial surface 721 of the radial direction of guide ring and the inner peripheral surface 71 of guide ring.
During use, copper pin 42 can play the effect improving heat-conducting effect.Guide ring 7 can make pin to insert easily, and when extracting, retaining pin 72 can play the effect stoping pin to be extracted.
Claims (8)
1. a double-sided PCB, comprises circuit board body, and the positive and negative both side surface of described circuit board body is all provided with circuit, and described circuit is provided with the insert hole of through described circuit board body, it is characterized in that, is equipped with tin cover in described insert hole.
2. double-sided PCB according to claim 1, is characterized in that, is provided with some copper pins in the wall of described tin cover, and the circumference distribution that described copper pin overlaps along tin axially extends, and described copper pin is exposed to described tin cover near one end of described circuit.
3. double-sided PCB according to claim 2, is characterized in that, described copper pin is connected to together with described circuit.
4. the double-sided PCB according to claim 1 or 2 or 3, is characterized in that, be provided with guide ring in described insert hole, described tin overlaps between described guide ring and circuit, and the inner peripheral surface of described guide ring is the conical surface that the little outer diameter of inner diameter is large.
5. double-sided PCB according to claim 4, is characterized in that, is interference fit between described guide ring and insert hole.
6. double-sided PCB according to claim 5, is characterized in that, described guide ring is provided with the flexible retaining pin preventing the pin of the electric elements be plugged in spliced eye from extracting from the one end away from circuit.
7. double-sided PCB according to claim 6, is characterized in that, described retaining pin is arranged at the inner face of described guide ring.
8. double-sided PCB according to claim 7, is characterized in that, described retaining pin is positioned on the same conical surface along the medial surface of the radial direction of guide ring and the inner peripheral surface of described guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925576.9U CN205160918U (en) | 2015-11-19 | 2015-11-19 | Double -sided circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925576.9U CN205160918U (en) | 2015-11-19 | 2015-11-19 | Double -sided circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160918U true CN205160918U (en) | 2016-04-13 |
Family
ID=55696555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925576.9U Expired - Fee Related CN205160918U (en) | 2015-11-19 | 2015-11-19 | Double -sided circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140430A (en) * | 2016-04-29 | 2019-08-16 | 阿瑞斯塔网络公司 | Connector for printed circuit board |
-
2015
- 2015-11-19 CN CN201520925576.9U patent/CN205160918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140430A (en) * | 2016-04-29 | 2019-08-16 | 阿瑞斯塔网络公司 | Connector for printed circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20191119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |