CN205115366U - Prevent fire -retardant circuit board of static - Google Patents
Prevent fire -retardant circuit board of static Download PDFInfo
- Publication number
- CN205115366U CN205115366U CN201520836084.2U CN201520836084U CN205115366U CN 205115366 U CN205115366 U CN 205115366U CN 201520836084 U CN201520836084 U CN 201520836084U CN 205115366 U CN205115366 U CN 205115366U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- circuit
- circuit card
- board body
- heat dissipating
- 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
- 239000003063 flame retardant Substances 0.000 title abstract description 5
- 230000003068 static effect Effects 0.000 title abstract 3
- 238000007789 sealing Methods 0.000 claims abstract description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000741 silica gel Substances 0.000 claims abstract description 13
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 11
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 11
- 239000011241 protective layer Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract 5
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001815 facial effect Effects 0.000 abstract 1
- 238000005476 soldering Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 230000003245 working effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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- Credit Cards Or The Like (AREA)
Abstract
The utility model discloses a prevent fire -retardant circuit board of static, including the circuit edition of books body, locate the sealing layer on the circuit board, locate the inoxidizing coating on the sealing layer, sealing layer fixed seal lives the one side that has electronic component at the circuit edition of books body, the sealing layer is lived to the inoxidizing coating parcel. One side at circuit edition of books body soldering tin is equipped with the heat dissipation layer, heat dissipation layer and the circuit edition of books body adopt to each other assorted is hidden, overlap joint formula or the connection of plug -in type facial features, a plurality of perforating hole has been seted up on the circuit edition of books body, the one side on heat dissipation layer is equipped with the recess, is full of heat conduction liquid in the recess, heat conduction liquid can be in the recess with the perforating hole in free flow, the heat dissipation layer is located with embedment silica gel sealedly with circuit edition of books body coupling. This circuit board has good prevent static, protection against the tide, electrical insulating property, still has characteristics such as good fire -retardant, heat dissipation.
Description
Technical field
The utility model relates to a kind of circuit card, particularly a kind of anti-static inflaming-retarding circuit card.
Background technology
Nowadays circuit card is applied to the every aspect of people's life, and be the indispensable important component part of present electronic product, therefore the impact of properties on electronic product of circuit card is most important.Circuit card in use, be easy to be subject to electrostatic, the factors disrupt such as to make moist and losing efficacy, have a strong impact on its work-ing life, now, general way encapsulates circuit card, therefore, the selection of its packaged material is with regard to the performance of round about circuit plate, current packaged material used has epoxy resin, polymethylmethacrylate, glass, the contour transparent material of organosilicon, epoxy resin and organosilicon material are as main packaged material, epoxy resin internal stress is excessive, xanthochromia, high and low temperature resistance is poor, loss of properties on aging, and current organosilicon material, internal stress is little, high and low temperature resistance is good, non yellowing, transmittance is also higher than epoxy resin, but it is poor to exist with substrate bonding, cause encapsulating unsuccessfully, or ageing-resistant performance degradation, and due to production technique backwardness, the less stables such as the circuit card sealing property after encapsulation, cause circuit card short for work-ing life, and circuit card is once the initiation fire that is short-circuited, common organosilicon sealant self can burn, the intensity of a fire is aggravated, particularly when the board application containing organic silica gel is in gas meter, flow meter, hidden danger is larger, existing circuit card does not mostly arrange heat dissipating layer, particularly has sealed structure circuit card, when the heat of the circuit card having sealed structure can not get discharging in time, is easy to initiating failure, or even fire.
Summary of the invention
Goal of the invention of the present utility model is: for above-mentioned Problems existing, and provide a kind of anti-static inflaming-retarding circuit card, this circuit card not only has excellent anti-electrostatic, protection against the tide, electrical insulation capability, also has the features such as good fire-retardant, heat radiation simultaneously.
The technical solution adopted in the utility model is as follows: a kind of anti-static inflaming-retarding circuit card, comprise circuit board body, be located at the sealing ply on circuit card, be located at the protective layer on sealing ply, described sealing ply fixing seal stays in the side of circuit board body with electronic component, and described protective layer wraps sealing ply.
Further, be provided with heat dissipating layer in the one side of circuit board body scolding tin, described heat dissipating layer and circuit board body are adopted as concealed, the lapping type that matches each other or plug-in type face is connected.
Further, described circuit board body offers several communicating poress, the one side of described heat dissipating layer is provided with groove, falling heat-transfer liquid in groove, described conductive fluid physical efficiency is unrestricted flow, described heat dissipating layer and circuit board body junction embedding silica gel sealing in groove and in communicating pores.
Further, described heat dissipating layer thickness is 5 ~ 8mm, material is sheet mica, the degree of depth of described groove is 3 ~ 5mm, the diameter of described communicating pores is 1 ~ 3mm, described heat-conducting liquid is silicone oil, and the thickness of described sealing ply exceedes the highest electronic component height of circuit card 2 ~ 5mm, and described overcoat thickness is 0.05 ~ 0.15mm.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
Anti-static inflaming-retarding circuit card of the present invention is not limited to board type, by increasing sealing ply and protective layer on circuit boards, when not affecting circuit card normal work and use, significantly improve its properties, the adaptability of intensifier circuit plate and extend its work-ing life, embodies mainly through the following aspects:
1, add sealing ply, sealing ply embedding silica gel, makes its performance be better than similar sealing material.
The joint sealant essence that the sealing ply of circuit card of the present utility model adopts is a kind of organic silica gel, organic silica gel all has good electrical insulation capability, its dielectric loss, proof voltage, resistance to electric arc, Inverter fed motor, volume resistivity and surface resistivity etc. all come out at the top in insulating material, and their electric property is very little by the impact of temperature and frequency, therefore, be a kind of stable electrically insulating material.The add-on type embedding silica gel that the utility model adopts, over-all properties is better than condensed type embedding silica gel and one-pack type embedding silica gel, add-on type embedding silica gel sulfidation does not have micromolecular by product to produce, crosslinking structure is easy to control, the sealing ply shrinking percentage formed after sulfuration is little, processing performance is superior, both can sulfuration at normal temperatures, again can sulfuration in a heated condition.Add-on type embedding silica gel viscosity is low, good fluidity, can pour into a mould, and has work simplification, quick. energy-efficient advantage.Under the condition of unexpected presence of fire, its circuit card also can not burn rapidly and even explode, and this advantage shows particularly outstanding on gas meter, flow meter.
2, the circuit card after sealing is more convenient in use, and safety and reliability, relative manufacturing cost is not high
Circuit card is with after a side seal of electronic component, the electrostatic interaction between electronic component can not only be eliminated, protection against the tide can also be played, dust-proof, protecting against shock and fire-retardant effect, circuit card is made to possess certain mechanical property, electronic component can also be prevented to be corroded, when circuit card is out of order, its transparent structure also can be convenient to serviceman with more knowing clearly guilty culprit, in use easily, and its sealing ply to have heatproof higher, insulativity is excellent, can withstand voltage more than 10000V, good flame resistance, prosthetic is good, safety and reliability, and the raw material sources of sealing ply are extensive, technique is all based on existing technique, manufacturing cost is corresponding lower.And heat dissipating layer is set in the one side of its scolding tin, the heat that circuit card produces is conducted to heat dissipating layer by the conducting fluid between heat dissipating layer and circuit board body, then by heat dissipating layer, heat is spread out of, make circuit card have good heat dispersion, improve its security further.The work-ing life of circuit card of the present invention reached for more than ten years, and structure is simple, easy to operate, easily promotes the use of.
Accompanying drawing explanation
Fig. 1 is a kind of anti-static inflaming-retarding board structure of circuit schematic diagram of the present utility model.
Mark in figure: 1 is circuit board body, and 2 is sealing ply, and 3 is protective layer, and 4 is heat dissipating layer, and 5 is communicating pores, and 6 is heat-conducting liquid, and 7 is space, and 8 is electronic component, and 9 is groove.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of anti-static inflaming-retarding circuit card, comprises circuit board body 1, be located at the sealing ply 2 on circuit card, be located at the protective layer 3 on sealing ply 2, sealing ply 2 fixing seal stays in the side of circuit board body with electronic component, and protective layer 3 wraps sealing ply 2; Heat dissipating layer 4 is provided with in the one side of circuit board body 1 scolding tin, heat dissipating layer 4 and circuit board body 1 are adopted as concealed, the lapping type that matches each other or plug-in type face is connected, circuit board body 1 offers several communicating poress 5, the one side of described heat dissipating layer is provided with groove 9, falling heat-transfer liquid 6 in groove 9, described heat-conducting liquid 6 can in groove 9 and communicating pores 5 in unrestricted flow, its composition is silicone oil, heat dissipating layer 4 is sheet mica, with circuit board body 1 junction embedding silica gel sealing.
When electronic component 8 works generation heat, by the effect of the heat-conducting liquid heat conduction in groove 9 and in communicating pores 5, transfer heat to heat dissipating layer 4, heat dissipating layer 4 has sheet mica to make, there is good thermal conductivity and insulativity, heat can be distributed, make circuit card keep a suitable temperature, ensure its safe operation.Simultaneously, consider the characteristic that conducting fluid expands with heat and contract with cold, sealing ply place above communicating pores 5 leaves certain space 7, space 7 can ensure that conducting fluid 6 pressure in the space that heat dissipating layer 4 and the communicating pores 5 in circuit board body 1 are formed is a normal range, prevents its pressure excessive and backs down clearance leakage.
In anti-static inflaming-retarding circuit card of the present utility model, heat dissipating layer 4 thickness be 5 ~ 8mm(optimum thickness for 6mm, 5mm or 8mm can certainly be selected), the degree of depth of heat dissipating layer 4 inner groovy 7 is 3 ~ 5mm(depth of groove the best is 3mm, 4mm or 5mm can certainly be selected), communicating pores diameter in circuit board body 1 is 1 ~ 3mm(communicating pores optimum diameter is 2mm, 1mm or 3mm can certainly be selected), the thickness of sealing ply exceedes the highest electronic component height of circuit card 2 ~ 5mm(and preferably exceeds 3mm, according to the difference size of electronic element of circuit board height difference, also 2mm or 5mm can be selected), overcoat thickness is 0.05mm(optimum thickness is 0.12mm, according to the difference of occasion used, also 0.05mm or 0.15mm can be selected).
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. an anti-static inflaming-retarding circuit card, comprise circuit board body (1), be located at the sealing ply (2) on circuit card, be located at the protective layer (3) on sealing ply (2), it is characterized in that, described sealing ply (2) fixing seal stays in the side of circuit board body with electronic component, and described protective layer (3) wraps sealing ply (2).
2. anti-static inflaming-retarding circuit card as claimed in claim 1, it is characterized in that, be provided with heat dissipating layer (4) in the one side of circuit board body (1) scolding tin, described heat dissipating layer (4) and circuit board body (1) are adopted as concealed, the lapping type that matches each other or plug-in type face is connected.
3. anti-static inflaming-retarding circuit card as claimed in claim 2, it is characterized in that, described circuit board body (1) offers several communicating poress (5), the one side of described heat dissipating layer (4) is provided with groove (9), the interior falling heat-transfer liquid (6) of groove (9), described heat-conducting liquid (6) can in groove (9) and unrestricted flow in communicating pores (5), described heat dissipating layer (4) and circuit board body (1) junction embedding silica gel sealing.
4. anti-static inflaming-retarding circuit card as claimed in claim 3, it is characterized in that, described heat dissipating layer thickness is 5 ~ 8mm, material is sheet mica, the degree of depth of described groove is 3 ~ 5mm, and the diameter of described communicating pores is 1 ~ 3mm, and described heat-conducting liquid is silicone oil, the thickness of described sealing ply exceedes the highest electronic component height of circuit card 2 ~ 5mm, and described overcoat thickness is 0.05 ~ 0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836084.2U CN205115366U (en) | 2015-10-27 | 2015-10-27 | Prevent fire -retardant circuit board of static |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836084.2U CN205115366U (en) | 2015-10-27 | 2015-10-27 | Prevent fire -retardant circuit board of static |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205115366U true CN205115366U (en) | 2016-03-30 |
Family
ID=55570990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520836084.2U Expired - Fee Related CN205115366U (en) | 2015-10-27 | 2015-10-27 | Prevent fire -retardant circuit board of static |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205115366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199646A (en) * | 2015-10-27 | 2015-12-30 | 张荣斌 | Antistatic flame-retardation circuit board |
-
2015
- 2015-10-27 CN CN201520836084.2U patent/CN205115366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105199646A (en) * | 2015-10-27 | 2015-12-30 | 张荣斌 | Antistatic flame-retardation circuit board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Yigen Inventor before: Zhang Rongbin |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170122 Address after: 523876 Guangdong Province, Dongguan city Changan town Xiabian Jingfu Road No. 8 two floor Patentee after: Dongguan Han Yi Electronics Co., Ltd. Address before: 610041 Wuhou District, Chengdu, South Ring Road, No. two, No. 1, building No. 18, building 1, No. 2 Patentee before: Zhang Rongbin |
|
| 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: 20160330 Termination date: 20171027 |