CN207070455U - Single-sided circuit board provided with protective layer - Google Patents
Single-sided circuit board provided with protective layer Download PDFInfo
- Publication number
- CN207070455U CN207070455U CN201720924552.0U CN201720924552U CN207070455U CN 207070455 U CN207070455 U CN 207070455U CN 201720924552 U CN201720924552 U CN 201720924552U CN 207070455 U CN207070455 U CN 207070455U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- circuit
- heat dissipation
- insert hole
- protective layer
- 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
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
It the utility model is related to a kind of single-sided circuit board provided with protective layer; including circuit board body and protective layer; a circuit board body only side surface is provided with circuit; protective layer covers circuit and circuit board body; circuit is provided with the insert hole for penetrating the circuit board body; the position that protective layer corresponds to the insert hole is provided with via, and the position that wiring board is provided with plug wire hole is exposed to via, tin set is equipped with insert hole.The utility model provide a kind of pin through component when can reduce welding passes to the heat of component, pin can also be fixed together with insert hole, can prevent that circuit is destroyed and produces the single-sided circuit board provided with protective layer of electric fault, solve during existing welding circuit board through pin pass to component heat is more, component with the bonding strength difference between circuit board and stress point it is single caused by easily generation electrical contact is bad and the easy impaired problem of circuit.
Description
Technical field
Circuit board technology field is the utility model is related to, more particularly, to a kind of single-sided circuit board provided with protective layer.
Background technology
Circuit board is the plank for being used to fix electronic component and be electrically connected in electrical equipment.It is in China Patent No.
2015203357241st, Authorization Notice No. CN204733458U, the patent of entitled " a kind of on-deformable printed circuit board (PCB) "
A kind of circuit board is disclosed in file.The basic structure of circuit board includes circuit board body, and the surface of circuit board body is provided with
Circuit.Single-sided circuit board only sets circuit in the side of circuit board body, and double-sided PCB is then in the both sides table of circuit board body
Face all sets circuit.Inserted for the pin of supplied for electronic component, if China Patent No. is 2011200082107, Granted publication
Number for CN201947534U, entitled " a kind of high after footpath than multilayer board " patent document in it is i.e. open as,
Need to set insertion on the line to the insert hole of circuit board body.In use, by the pin of component from insert hole away from line
One end insertion on road, is then welded together pin with circuit by scolding tin.
Existing wiring board has the following disadvantages：Heat caused by welding can be in large quantities along the pin transmission of component
To component, easily cause component quality decline；The same insert hole in part that pin can not be located at during welding in insert hole
It is fixed together, so as to cause the bonding strength between component and wiring board poor；When component is by the power extracted, stress point
Junction of the pin with circuit is all located at, easily produces electrical connection bad phenomenon；Circuit is easily damaged and produces electric event
Barrier.On the other hand, a large amount of electronic components are possessed on circuit board, substantial amounts of heat can be produced in use, circuit board is in itself
Heat dispersion is poor and narrow space, causes heat to be difficult to distribute, so that circuit board is rapidly heated, influences the property of electronic component
Can, that is, it have impact on the reliability of circuit board.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide when one kind can reduce welding through member
The pin of device passes to the heat of component, pin can also be fixed together with insert hole, circuit quilt can be prevented
Destroy and produce electric fault, radiating preferably and avoid influenceing the single-sided circuit board that circuit board reliability is provided with protective layer.
What the technical solution of the utility model was realized in：A kind of single-sided circuit board provided with protective layer, including circuit
Plate body, a circuit board body only side surface are provided with circuit, and the circuit is provided with the plug-in unit for penetrating the circuit board body
Hole, it is characterised in that also include covering the circuit and the protective layer of circuit board body, the protective layer corresponds to the plug-in unit
The position in hole is provided with via, and the position that the wiring board is provided with the insert hole is exposed to the via, worn in the insert hole
Provided with tin set.In use, the pin of component is inserted from one end away from circuit of insert hole, then by tin soldering machine by pin
Weld together with circuit, covered and absorb by tin when pin of the heat in welding process through component is conducted so that transmit
Heat to component reduces, so as to reduce the influence to component.Tin set absorbs heat and melted, by pin after fusing
The part being located at insert hole in wiring board is also welded to and forms internal solder joint together, and internal welding point plays raising member
The effect of bonding strength between device and wiring board；The formation of internal solder joint can be played when extracting component, and auxiliary is inserted
Pin carries out stress with the junction of circuit, to reduce the probability for producing electrical connection bad phenomenon.Due to there is provided protective layer, therefore
Circuit and circuit board body are not easy to be damaged.Two radiatings connected respectively with insert hole are provided with the circuit board body
Passage, two heat dissipation paths are divided into heat dissipation channel and go out heat dissipation channel, and this enters the bore of heat dissipation channel by close to insert hole
One end becomes larger toward one end away from insert hole, and this goes out the bore of heat dissipation channel from one end of close insert hole toward away from plug-in unit
The one end in hole is tapered into, and interface channel is additionally provided with the circuit board body, the both ends of the interface channel respectively with enter it is scattered
The passage of heat is connected with heat dissipation channel is gone out, and the interface channel is set close to insert hole.Circuit board produces a large amount of in use
Heat, due to being provided with two heat dissipation paths in circuit board body, two heat dissipation paths are divided into heat dissipation channel and gone out scattered
The passage of heat so that extraneous air is introduced into heat dissipation channel horizontal stroke, is then entered heat dissipation channel by interface channel, is realized sky
It gas convection current, ensure that circuit board produces substantial amounts of heat and can timely excluded, and enter the bore of heat dissipation channel by close to slotting
The one end in part hole becomes larger toward one end away from insert hole so that and extraneous air can be rapidly entered into heat dissipation channel, with reference to,
This goes out the bore of heat dissipation channel from being tapered into close to one end of insert hole toward one end away from insert hole so that circuit board is produced
Raw a large amount of heat energy quickly exclude, and finally further accelerate the flowing of the hot gas and extraneous air inside circuit board, enter one
Step improves radiating effect.
Wherein, the entrance point for entering heat dissipation channel connects with extraneous air, and the port of export and extraneous air for going out heat dissipation channel connect
It is logical.
If preferably, be provided with dry copper pin in the wall of tin set, the copper pin covered along tin it is circumferentially distributed axially extending,
The copper pin is exposed to the tin set close to one end of the circuit.The efficiency that tin set imports heat can be improved so that welding
During tin set more can reliably be melted.
Preferably, the copper pin abuts together with the circuit.Can further improve when heat conduction covers to tin can
By property.
Preferably, being provided with guide ring in the insert hole, the tin set is described between the guide ring and circuit
The inner peripheral surface of guide ring is the big conical surface of the small outer diameter of inner diameter.It is convenient when component inserts to cause, and can is enough anti-
During only manually being welded by soldering gun, tin set fusing after outflow be unable to by pin with circuit board body weld
Together.Note：Component is in the lower section of circuit board during human weld, is that component is located at circuit board when tin soldering machine is welded
Top.
Preferably, it is interference fit between the guide ring and insert hole.Can easily and effectively prevent guide ring from
Deviate from insert hole.
Preferably, the guide ring, which is provided with, prevents from being plugged on the pins of electric elements in insert hole from away from circuit
The elastic retaining pin that one end is extracted.When inserting pin, pin causes retaining pin to open and produces avoidance.Then retaining during extraction
Resistance when pin increase is extracted, so that pin is not easy to be pulled out, play a part of improving electrical connection reliability.
Preferably, the retaining pin is arranged at the inner face of the guide ring.It can be carried out when tin set aperture is smaller
Layout, improves convenience during circuit-board laying-out.
Preferably, the inner peripheral surface of medial surface and the guide ring of the retaining pin along the radial direction of guide ring is positioned at same
On the conical surface.It is easy to make, it is compact-sized.
Preferably, the circuit board body, which is provided with, deposits hole, the protective layer, which is provided with, is contained in the connection deposited in hole
Head.The connection reliability of protective layer can be improved.
Preferably, it is described deposit hole the big outer end opening area of inner aperture area it is small, the connector is connected to described
Deposit in hole.Connection reliability is more preferable.
The utility model tool has the advantage that：Pin of the heat through component in welding process can be by tin when being conducted
Set absorbs so that passing to the heat of component reduces, so as to reduce the influence to component；Tin set absorbs heat and produced molten
Pin can be also welded to the part that insert hole is located in wiring board after change and form internal solder joint together, internal welding point plays
Improve the effect of the bonding strength between component and wiring board；It is auxiliary when the formation of internal solder joint can play extraction component
Pin is helped to carry out stress with the junction of circuit, so as to not allow to be also easy to produce electrical connection bad phenomenon；Circuit is not easy to be damaged.
The utility model is further arranged to：It is described to enter heat dissipation channel and to go out heat dissipation channel in wavy.
By using above-mentioned technical proposal, area of dissipation is improved, so as to accelerate the radiating of circuit board.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model specific embodiment one；
Fig. 2 is the use state diagram of embodiment one；
Fig. 3 is the structural representation of the utility model embodiment two.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Embodiment one, referring to Fig. 1, a kind of single-sided circuit board provided with protective layer, including circuit board body 1.Circuit board sheet
The only front of body 1 is provided with circuit 2.Circuit 2 is provided with insert hole 3.Insert hole 3 penetrates circuit board body 1 and circuit 2.Worn in insert hole 3
Provided with tin set 4.Circuit board body 1 is provided with the side covering matcoveredn 8 of circuit.Protective layer 8 covers circuit 2 simultaneously.Protection
The position of the corresponding insert hole of layer 8 is provided with via 81.The position 21 that wiring board is provided with insert hole is exposed to via 81.Circuit board body
1 be provided with deposit hole 11.The big outer end opening area of inner aperture area for depositing hole 11 is small.Protective layer 8 is provided with connector 82.Connector 82
Size and shape match with depositing hole 11.Connector 82, which is connected to, to be deposited in hole 11.
Two heat dissipation paths connected respectively with insert hole 3, two heat dissipation paths point are provided with the circuit board body 1
To enter heat dissipation channel 100 and to go out heat dissipation channel 200, this enter the bore of heat dissipation channel 100 from close to one end of insert hole 3 toward remote
One end of insert hole 3 becomes larger, this go out the bore of heat dissipation channel 200 from close to one end of insert hole 3 toward remote insert hole 3
One end is tapered into, and interface channel 300 is additionally provided with the circuit board body 1, and the both ends of the interface channel 300 are respectively with entering
Heat dissipation channel 100 is connected with heat dissipation channel 200 is gone out, and the interface channel 300 is set close to insert hole 3.It is electric in use
Road plate produces substantial amounts of heat, and due to being provided with two heat dissipation paths in circuit board body 1, two heat dissipation paths are divided into scattered
The passage of heat 100 and go out heat dissipation channel 200 so that extraneous air is introduced into horizontal into heat dissipation channel 100, then passes through interface channel
300 enter heat dissipation channel 200, realize cross-ventilation, ensure that circuit board produces substantial amounts of heat and can timely arranged
Remove, and enter the bore of heat dissipation channel 100 from being become larger close to one end of insert hole 3 toward one end away from insert hole 3 so that be outer
Portion's air can be rapidly entered into heat dissipation channel 100, with reference to this goes out the bore of heat dissipation channel 200 by close to one end of insert hole 3
Tapered into toward one end away from insert hole 3 so that a large amount of heat energy quickly exclude caused by circuit board, final further to add
The flowing of hot gas and extraneous air inside fast circuit board, further improves radiating effect.
Wherein, the entrance point for entering heat dissipation channel 100 connects with extraneous air, goes out the port of export and the outside of heat dissipation channel 200
Air communication.
It is described to enter heat dissipation channel 100 and to go out heat dissipation channel 200 in wavy in the utility model specific embodiment.
Area of dissipation is improved, so as to accelerate the radiating of circuit board.
Referring to Fig. 2, in use, the pin 51 of component 5 is inserted from the one end of insert hole 3 away from circuit.Then will insert
Pin 51 and circuit 2 weld together and form outside solder joint 6.When heat pin 51 in welding process is conducted 4 are covered by tin
Absorb, the absorption heats of tin set 4 and produce fusing, pin 51 is located at insert hole 3 part in wiring board by tin set 4 after melting
It is welded together to form internal solder joint 41.
Embodiment two, the difference with embodiment one are：
Referring to Fig. 3, if being provided with dry copper pin 42 in the jacket wall of tin set 4.Copper pin 42 covers circumferentially distributed along tin.Copper pin 42 is along tin
What is covered is axially extending.Copper pin is exposed to tin set 4 close to one end 421 of circuit.Copper pin is led close to one end 421 of circuit with circuit 2
Hot abutting is together.Guide ring 7 is provided with insert hole 3.Tin set 4 is between guide ring 7 and circuit 2.The inner circumferential of guide ring
Face 71 is the big conical surface of the small outer diameter of inner diameter.It is interference fit between guide ring 7 and insert hole 3.Guide ring 7 is provided with bullet
The retaining pin 72 of property.Retaining pin 72 is arranged at the inner face of guide ring 7.Medial surface 721 He of the retaining pin along the radial direction of guide ring
The inner peripheral surface 71 of guide ring is located on the same conical surface.
Copper pin 42 can play a part of improving heat-conducting effect during use.Guide ring 7 enables to pin can be easily
Insertion, retaining pin 72 can play a part of preventing pin from extracting during extraction.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (4)
1. a kind of single-sided circuit board provided with protective layer, including circuit board body, a circuit board body only side surface is provided with
Circuit, the circuit are provided with the insert hole for penetrating the circuit board body, it is characterised in that：Also include cover the circuit and
The protective layer of circuit board body, the position that the protective layer corresponds to the insert hole are provided with via, and the circuit is provided with described insert
The position in part hole is exposed to the via, and tin set is equipped with the insert hole；Be provided with the circuit board body respectively with
Two heat dissipation paths of insert hole connection, two heat dissipation paths are divided into heat dissipation channel and go out heat dissipation channel, and this enters heat dissipation channel
Bore from being become larger close to one end of insert hole toward away from one end of insert hole, this goes out bore of heat dissipation channel by close to slotting
The one end in part hole tapers into toward one end away from insert hole, is additionally provided with interface channel in the circuit board body, the connection
The both ends of passage are connected with entering heat dissipation channel and going out heat dissipation channel respectively, and the interface channel is set close to insert hole.
2. the single-sided circuit board according to claim 1 provided with protective layer, it is characterised in that：It is described to enter heat dissipation channel and to go out
Heat dissipation channel is in wavy.
3. the single-sided circuit board according to claim 1 provided with protective layer, it is characterised in that：It is provided with the wall of the tin set
If dry copper pin, the copper pin covers circumferentially distributed axially extending along tin, and the copper pin is exposed to institute close to one end of the circuit
State tin set.
4. the single-sided circuit board according to claim 3 provided with protective layer, it is characterised in that：The copper pin is the same as the circuit
Abut together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720924552.0U CN207070455U (en) | 2017-07-27 | 2017-07-27 | Single-sided circuit board provided with protective layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720924552.0U CN207070455U (en) | 2017-07-27 | 2017-07-27 | Single-sided circuit board provided with protective layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207070455U true CN207070455U (en) | 2018-03-02 |
Family
ID=61517849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720924552.0U Expired - Fee Related CN207070455U (en) | 2017-07-27 | 2017-07-27 | Single-sided circuit board provided with protective layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207070455U (en) |
-
2017
- 2017-07-27 CN CN201720924552.0U patent/CN207070455U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180302 Termination date: 20200727 |