CN209731683U - A kind of heat radiating type single side printed wiring board - Google Patents
A kind of heat radiating type single side printed wiring board Download PDFInfo
- Publication number
- CN209731683U CN209731683U CN201821769882.8U CN201821769882U CN209731683U CN 209731683 U CN209731683 U CN 209731683U CN 201821769882 U CN201821769882 U CN 201821769882U CN 209731683 U CN209731683 U CN 209731683U
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- heat
- substrate
- wiring board
- collecting plate
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Abstract
The utility model discloses a kind of heat radiating type single side printed wiring board, the wiring board includes substrate, the line layer above substrate and the insulating layer above line layer；Four edges of the substrate are equipped with screw hole, the multiple radiating grooves being equipped between two adjacent screw holes；The screw hole and radiating groove runs through insulating layer, line layer and substrate；The surrounding of the wiring board is arranged with protection shell, and the lower section of substrate is equipped with heat-conducting layer, and the lower section of heat-conducting layer is equipped with collecting plate；The top of collecting plate is equipped with heat accumulator, and criss-cross longitudinal heat pipe and lateral heat pipe are equipped in the heat accumulator；The lower section of heat accumulator is equipped with several heat release holes；Thermal column is equipped in the heat release hole, thermal column extends to outside collecting plate.The good heat-radiating effect of the utility model is more preferably embodied in the collecting plate and is built-in with heat pipe, can high efficiency absorb heat, meanwhile, thermal column is installed on heat release hole, the speed of heat dissipation can be increased, reliable heat dissipation effect is provided.
Description
Technical field
The utility model belongs to printed wiring board technical field more particularly to a kind of heat radiating type single side printed wiring board.
Background technique
Circuit board is most active industry in contemporary electronic element industry, and industry growth rate is generally all higher than electronic component
3 percentage points of industry or so.With the high speed development of electronic technology, the requirement to electronic product is higher and higher, and function is increasingly
More, the integrated level of chip is higher and higher, corresponding thereto, design requirement for wiring board and higher and higher.
Wiring board is the product that electronic technology develops to high speed, multi-functional, large capacity, small size direction.With electronics
The continuous development of technology, especially extensive and super large-scale integration extensively and profoundly application, wiring board is just rapidly to height
Density, high-precision, high-layer direction develop there are fine lines, small-bore is run through, blind hole buried via hole, high plate thickness aperture ratio etc.
Technology is to meet the needs in market.
However as gradually increasing for the electronic component on wiring board, some we also emerge the problem of usually ignoring gradually
Out；Since electronic component can give out certain heat while working normally.Chinese patent net application No. is
The utility model patent of CN201210140049.8 discloses a kind of high heat radiation printed circuit board and preparation method thereof, first online
Gong hole on the plate substrate of road, and box thread is attacked in the gong hole；Then it makes identical as gong hole shape and can be correspondingly embedded in gong hole
Heat dissipation metal matrix, and male thread corresponding with above-mentioned box thread is attacked on the outside of the heat dissipation metal matrix, and dissipate metal
Hot radical block is fixed in gong hole from circuit board substrate bottom correspondence, later welding chip at the gong hole on assist side substrate top,
Contact chip bottom with heat dissipation metal matrix.
And possess a large amount of electronic component on wiring board, a large amount of heat is given out when they work together, still
Wiring board heat dissipation performance itself is poor and narrow space, and electronic component is densely distributed, and above-mentioned patent radiating rate is slow, can not achieve
Collective's heat dissipation of a large amount of electronic components, therefore will lead to heat and be difficult to distribute, so that wiring board be made to be rapidly heated；When temperature reaches
When to a certain degree, the work of some electronic components will be influenced, it is serious or even electronic component and wiring board can be burnt.
Utility model content
Based on background technique there are the problem of, fast, heat dissipation effect that the purpose of this utility model is to provide a kind of radiating rates
The high heat radiating type single side printed wiring board of rate.
For the attainment of one's purpose, technical solution provided by the utility model are as follows:
The utility model relates to a kind of heat radiating type single side printed wiring board, the wiring board includes substrate, is located at substrate
The line layer of top and the insulating layer above line layer；Four edges of the substrate be equipped with screw hole, adjacent two
The multiple radiating grooves being equipped between a screw hole；The screw hole and radiating groove runs through insulating layer, line layer and substrate；The line
The surrounding of road plate is arranged with protection shell, and the lower section of substrate is equipped with heat-conducting layer, and the lower section of heat-conducting layer is equipped with collecting plate；Collecting plate
Top is equipped with heat accumulator, and criss-cross longitudinal heat pipe and lateral heat pipe are equipped in the heat accumulator；The lower section of heat accumulator
Equipped with several heat release holes；Thermal column is equipped in the heat release hole, thermal column extends to outside collecting plate.
Preferably, the collecting plate is aluminium alloy plate, and longitudinal heat pipe and lateral heat pipe are staggered to form multiple heat collector cavities, collect
Heat is intracavitary to be equipped with criss-cross collection hot wire；Heat release hole is correspondingly arranged below each heat collector cavity.Each heat collector cavity collects simultaneously
Heat heat dissipation is accelerated heat and is distributed from thermal column.
Preferably, the interior avris of the screw hole and radiating groove, which is equipped with, applies copper.Painting copper in screw hole and radiating groove can
The heat-conducting effect for improving wiring board has further speeded up the speed of heat dissipation.
Preferably, the heat-conducting layer is thermal grease layer, and substrate is insulating substrate.
Using technical solution provided by the utility model, compared with prior art, have the following beneficial effects:
The effect of collecting plate is reliably to collect the heat of whole circuit board ontology in the utility model, finally by circuit
The thermal vias of plate is discharged；The good heat-radiating effect of the utility model is more preferably embodied in the collecting plate and is built-in with heat pipe, can
High efficiency absorbs heat, meanwhile, thermal column is installed on heat release hole, the speed of heat dissipation can be increased, reliable heat dissipation effect is provided.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the overlooking structure figure of collecting plate in the utility model.
Mark explanation in schematic diagram:
1- substrate；2- line layer；3- insulating layer；4- screw hole；5- radiating groove；6- protects shell；7- heat-conducting layer；8- thermal-arrest
Plate；9- heat accumulator；The longitudinal direction 10- heat pipe；11- transverse direction heat pipe；12- heat release hole；13- thermal column；14- heat collector cavity；15- applies copper；
Specific embodiment
For the content for further appreciating that the utility model, the utility model is described in detail in conjunction with the embodiments, it is real below
Example is applied for illustrating the utility model, but is not intended to limit the scope of the present invention.
According to Fig. 1 to Fig. 3, the present embodiment is related to a kind of heat radiating type single side printed wiring board, the wiring board packet
Substrate 1, the line layer 2 above substrate 1 and the insulating layer 3 above line layer 2 are included, substrate 1 is insulating substrate.It is described
Four edges of substrate 1 be equipped with screw hole 4, the multiple radiating grooves 5 being equipped between two adjacent screw holes 4；The screw hole 4
Run through insulating layer 3, line layer 2 and substrate 1 with radiating groove 5；The surrounding of the wiring board is arranged with protection shell 6, substrate 1
Lower section is equipped with heat-conducting layer 7, and heat-conducting layer 7 is using thermal grease layer；The lower section of heat-conducting layer 7 is equipped with collecting plate 8；Collecting plate 8
Top is equipped with heat accumulator 9, and criss-cross longitudinal heat pipe 10 and lateral heat pipe 11 are equipped in the heat accumulator 9；Heat accumulator 9
Lower section be equipped with several heat release holes 12；Thermal column 13 is equipped in the heat release hole 12, thermal column 13 extends to outside collecting plate 8
Portion.
The collecting plate 8 is aluminium alloy plate, and longitudinal heat pipe 10 and lateral heat pipe 11 are staggered to form multiple heat collector cavities 14；Collection
It is equipped with criss-cross collection hot wire 16 in hot chamber 14, is correspondingly arranged heat release hole 12 below each heat collector cavity 14；Each thermal-arrest
The thermal-arrest heat dissipation simultaneously of chamber 14, accelerates heat and distributes from thermal column 13.On the interior avris of the screw hole 4 and radiating groove 5
Equipped with painting copper 15.Painting copper 15 in screw hole 4 and radiating groove 5 can be improved the heat-conducting effect of wiring board, further speed up heat dissipation
Speed.
Working principle of the utility model is:
Line layer 2 and the electronic component on line layer 2 can generate a large amount of heat at work, and a part of heat is logical
It crosses the substrate 1 positioned at 2 lower section of line layer and passes to heat-conducting layer 7, another part passes to heat-conducting layer 7 by radiating groove 5, if spiral shell
Bolt is mounted in hole 4, can also be thermally conductive by bolt, in the heat on heat-conducting layer 7 by the longitudinal heat pipe 10 and cross in heat accumulator 9
It is absorbed to 11 high efficiency of heat pipe, heat is concentrated in the thermal-arrest gold in the heat collector cavity 14 that longitudinal heat pipe 10 and lateral heat pipe 11 are formed
Belong on silk 16, respectively gives out the heat in each heat collector cavity finally by the thermal column 13 for being mounted on 14 lower section of heat collector cavity
It goes.
Schematically the utility model and embodiments thereof are described above, description is not limiting, attached drawing
Shown in also be the embodiments of the present invention, actual structure is not limited to this.So the common skill of this field
Art personnel are enlightened by it, without deviating from the purpose of the present invention, are not inventively designed and the technology
The similar frame mode of scheme and embodiment, all should belong to the protection range of the utility model.
Claims (4)
1. a kind of heat radiating type single side printed wiring board, the wiring board includes substrate, the line layer above substrate and position
Insulating layer above line layer；It is characterized by: four edges of the substrate are equipped with screw hole, two adjacent screw holes
Between multiple radiating grooves for being equipped with；The screw hole and radiating groove runs through insulating layer, line layer and substrate；The wiring board
Surrounding is arranged with protection shell, and the lower section of substrate is equipped with heat-conducting layer, and the lower section of heat-conducting layer is equipped with collecting plate；It is set at the top of collecting plate
There is heat accumulator, criss-cross longitudinal heat pipe and lateral heat pipe are installed in the heat accumulator；If the lower section of heat accumulator is equipped with
Dry heat release hole；Thermal column is equipped in the heat release hole, thermal column extends to outside collecting plate.
2. heat radiating type single side printed wiring board according to claim 1, it is characterised in that: the collecting plate is aluminium alloy
Plate, longitudinal heat pipe and lateral heat pipe are staggered to form multiple heat collector cavities, are equipped with criss-cross collection hot wire in heat collector cavity；Each
Heat release hole is correspondingly arranged below heat collector cavity.
3. heat radiating type single side printed wiring board according to claim 1, it is characterised in that: the screw hole and radiating groove
Interior avris, which is equipped with, applies copper.
4. heat radiating type single side printed wiring board according to claim 1, it is characterised in that: the heat-conducting layer is thermal conductive silicon
Rouge layer, substrate are insulating substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769882.8U CN209731683U (en) | 2018-10-30 | 2018-10-30 | A kind of heat radiating type single side printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821769882.8U CN209731683U (en) | 2018-10-30 | 2018-10-30 | A kind of heat radiating type single side printed wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209731683U true CN209731683U (en) | 2019-12-03 |
Family
ID=68672453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821769882.8U Active CN209731683U (en) | 2018-10-30 | 2018-10-30 | A kind of heat radiating type single side printed wiring board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209731683U (en) |
-
2018
- 2018-10-30 CN CN201821769882.8U patent/CN209731683U/en active Active
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| GR01 | Patent grant |