CN101072473A - Moisture-proof circuit board processing method and product - Google Patents
Moisture-proof circuit board processing method and product Download PDFInfo
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- CN101072473A CN101072473A CN 200710049335 CN200710049335A CN101072473A CN 101072473 A CN101072473 A CN 101072473A CN 200710049335 CN200710049335 CN 200710049335 CN 200710049335 A CN200710049335 A CN 200710049335A CN 101072473 A CN101072473 A CN 101072473A
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Abstract
The method includes following steps: (1) cleaning oil mist, dust, even metal powder on surface of circuit board and component of electrical apparatus; (2) drying surface of circuit board and component of electrical apparatus; (3) painting a layer of dope on surface of circuit board and component of electrical apparatus evenly, and carrying out drying procedure in environment under 100 deg.C; (4) completing procedures. Performances of high temperature resistant and fire retardation are added to circuit board based on good capabilities of moistureproof, preventing salt spray, and moldproof. Features are: simple operation, low cost of production. The invention is suitable to all circuit boards.
Description
Technical field the present invention relates to a kind of method and product of method and product, especially moisture-proof circuit board processing of circuit board.
The background technology circuit board is a part that often uses in various electrical equipment, the equipment.Circuit board is normally exposed, therefore can be short-circuited under high temperature, high humidity or salt mist environment condition, accident such as electric leakage, causes electrical equipment, device damage, may cause the personal security accident when serious.
Chinese patent CN2165580 number disclosed " bathroom moisture proof telephone " patent (application number: 93211198.X), be the film that is coated with one deck sealing and moistureproof usefulness on the electronical elements surface on the circuit board in the phone support; Can be under any abominable wet environment, guarantee speech quality, and do not influence the normal use of its machine with its machine and time spent.The weak point of this patent is: cover the film of moistureproof usefulness on the electronical elements surface, can only solve problems such as electronic component and electronic component, electronic component and circuit board are short-circuited, electric leakage, can't solve problems such as circuit board is short-circuited, electric leakage.
Chinese patent CN2836067 number disclosed " the LonWorks network intelligence controller of high temperature resistance high humidity, salt air corrosion " patent (application number: 200620070831.7), comprise casing and be arranged on interior circuit board of casing and the electric elements that are arranged on the circuit board, it is characterized in that on the outer surface of casing, being provided with one deck military green acrylic baking paint overcoat, be provided with one deck DJB-823 solid film protective agent overcoat on the surface of circuit board and electric elements; Being provided with of overcoat guaranteed that circuit board has good moisture proof, anti-salt fog and mould proof performance.The weak point of this patent is: the DJB-823 solid film has good Corrosion Protection greasy property and electric property, but inflammable, has therefore increased fire risk.
On the other hand, the composition of common coating is magnesia powder 30-50%, pearl essence 20-40%, mica powder 15-30%, Ludox 3-9%, white glue with vinyl 1-5%, polyacrylamide 0.1-0.8%, sodium carboxymethylcellulose 0.1-0.8%, adsorbent 1-6%, fire retardant 0.3-2%.Earlier adsorbent, sodium carboxymethylcellulose, polyacrylamide are added the water wiring solution-forming respectively during preparation, mix together with aggregate and other compositions again.Common coating has unique acidproof, alkaline-resisting, chemical stability, also has good insulation performance and thermal endurance, noninflammability, anti-corrosive properties.
Summary of the invention purpose of the present invention is exactly method and the product that a kind of moisture-proof circuit board processing will be provided, and makes the simple and convenient processing method of moisture-proof circuit board, and the product that processes has the fail safe of accidents such as the short circuit of preventing, electric leakage.
In order to achieve the above object, the method for a kind of moisture-proof circuit board processing provided by the invention comprises the following step:
1., mist of oil, dust even the metal dust on cleaning circuit plate and electric elements surface.The mist of oil on circuit board and electric elements surface, dust even metal dust cause that easily insulation resistance descends between components and parts, even cause components and parts and circuit board damage.Here said circuit board is meant finished product circuit board, the i.e. circuit board that can use.Said electric elements are the electric elements that are fixed on the circuit board, comprise electric capacity, resistance etc.;
2., dry circuit board and electric elements surface.The moisture on circuit board and electric elements surface can cause that equally insulation resistance descends between components and parts, even cause components and parts and circuit board damage;
3., evenly smear a coating, and in 100 ℃ of following temperature environments, carry out drying at circuit board and electric elements surface.If in being higher than 100 ℃ temperature environment, carry out drying, easily cause accidents such as the distortion of circuit board matrix, electric elements damage.Wherein, coating various in style, its composition is general knowledge and prior art.Therefore, said here coating has unique acidproof, alkaline-resisting, chemical stability, also has good insulation performance and thermal endurance, noninflammability, anti-corrosive properties, and preferably transparent or semitransparent, is beneficial to inspection and maintenance;
4., finish processing.
For making the present invention be suitable for using, repeat the above-mentioned the 3. step, promptly evenly smear a coating, and in 100 ℃ of following temperature environments, carry out drying at circuit board and electric elements surface, strengthen dope layer.
The product that method processed of moisture-proof circuit board processing provided by the invention, its circuit board and electric elements surface have dope layer, can prevent the generation of accidents such as short circuit, electric leakage.
1., mist of oil, dust even the metal dust on cleaning circuit plate and electric elements surface the method for a kind of moisture-proof circuit board processing provided by the invention and product compared with prior art have positive effect: comprise the following step:; 2., dry circuit board and electric elements surface; 3., evenly smear a coating, and in 100 ℃ of following temperature environments, carry out drying at circuit board and electric elements surface; 4., finish processing.The present invention is simple to operate, and is cheap for manufacturing cost, guaranteeing that circuit board has on the basis of good moisture proof, anti-salt fog and mould proof property, increases high temperature resistant and fire resistance, is applicable to all circuit boards.
Description of drawings the present invention will be further described in conjunction with the accompanying drawings, please referring to accompanying drawing:
Accompanying drawing 1 expression schematic diagram of the present invention.
Structure shown in the accompanying drawing 1 comprises: electric elements (1), coating (2), circuit board (3).
The method of embodiment a kind of moisture-proof circuit board processing provided by the invention comprises the following step:
1., mist of oil, dust even the metal dust on cleaning circuit plate 3 and electric elements 1 surface.Mist of oil, dust even the metal dust on circuit board 3 and electric elements 1 surface cause that easily insulation resistance descends between components and parts, even cause components and parts and circuit board 3 to damage.Here said circuit board 3 is meant finished product circuit board 3, the circuit board 3 that promptly can use.Said electric elements 1 are the electric elements 1 that are fixed on the circuit board 3, comprise electric capacity, resistance etc.;
2., dry circuit board 3 and electric elements 1 surface.The moisture on circuit board 3 and electric elements 1 surface can cause that equally insulation resistance descends between components and parts, even causes components and parts and circuit board 3 to damage;
3., evenly smear a coating 2, and in 100 ℃ of following temperature environments, carry out drying at circuit board 3 and electric elements 1 surface.If in being higher than 100 ℃ temperature environment, carry out drying, easily cause accidents such as the distortion of circuit board 3 matrixes, electric elements 1 damage.Wherein, coating 2 various in style, its composition is general knowledge and prior art.Therefore, said here coating 2 has unique acidproof, alkaline-resisting, chemical stability, also has good insulation performance and thermal endurance, noninflammability, anti-corrosive properties, and preferably transparent or semitransparent, is beneficial to inspection and maintenance;
4., finish processing.
For making the present invention be suitable for using, repeat the above-mentioned the 3. step, promptly evenly smear a coating 2, and in 100 ℃ of following temperature environments, carry out drying at circuit board 3 and electric elements 1 surface, strengthen 2 layers of coating.
The product that method processed of moisture-proof circuit board processing 3 provided by the invention, its circuit board 3 and electric elements 1 surface have 2 layers of coating, can prevent the generation of accidents such as short circuit, electric leakage.
Protection range of the present invention relates to all changes form recited above.
Claims (3)
1., mist of oil, dust even the metal dust on cleaning circuit plate (3) and electric elements (1) surface 1, a kind of method of moisture-proof circuit board processing is characterized in that: comprise the following step:; 2., dry circuit board (3) and electric elements (1) surface; 3., evenly smear a coating (2), and in 100 ℃ of following temperature environments, carry out drying at circuit board (3) and electric elements (1) surface; 4., finish processing.
2, the method for a kind of moisture-proof circuit board processing according to claim 1, it is characterized in that: repeat the above-mentioned 3. step, promptly evenly smear a coating (2) at circuit board (3) and electric elements (1) surface, and in 100 ℃ of following temperature environments, carry out drying, strengthen coating (2) layer.
3, the product that method processed of a kind of moisture-proof circuit board processing according to claim 1 is characterized in that: circuit board (3) and electric elements (1) surface have coating (2) layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710049335 CN101072473A (en) | 2007-06-17 | 2007-06-17 | Moisture-proof circuit board processing method and product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710049335 CN101072473A (en) | 2007-06-17 | 2007-06-17 | Moisture-proof circuit board processing method and product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101072473A true CN101072473A (en) | 2007-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710049335 Pending CN101072473A (en) | 2007-06-17 | 2007-06-17 | Moisture-proof circuit board processing method and product |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196674A (en) * | 2011-03-30 | 2011-09-21 | 苏州工业园区非而智能电器有限公司 | Electronic circuit board moistureproof process |
| CN102313570A (en) * | 2010-06-30 | 2012-01-11 | 金理拌 | Electric power instrument with protection function and machining process thereof |
| CN102753001A (en) * | 2012-03-22 | 2012-10-24 | 深圳市英威腾电气股份有限公司 | Method for manufacturing electronic equipment |
| WO2012155336A1 (en) * | 2011-05-17 | 2012-11-22 | 中山大洋电机制造有限公司 | Motor controller and process for manufacturing same |
| CN104270901A (en) * | 2014-10-28 | 2015-01-07 | 湖北广兴通信科技有限公司 | Coating process on basis of 823 protective agent |
| CN104538317A (en) * | 2014-12-23 | 2015-04-22 | 成都九洲迪飞科技有限责任公司 | Heat-humidity prevention, mould prevention and salt mist prevention method for microwave substrate of bare tube core micro-package |
| CN111465209A (en) * | 2020-04-16 | 2020-07-28 | 四川九立微波有限公司 | Coating process for radio frequency circuit and radio frequency circuit |
-
2007
- 2007-06-17 CN CN 200710049335 patent/CN101072473A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313570A (en) * | 2010-06-30 | 2012-01-11 | 金理拌 | Electric power instrument with protection function and machining process thereof |
| CN102196674A (en) * | 2011-03-30 | 2011-09-21 | 苏州工业园区非而智能电器有限公司 | Electronic circuit board moistureproof process |
| WO2012155336A1 (en) * | 2011-05-17 | 2012-11-22 | 中山大洋电机制造有限公司 | Motor controller and process for manufacturing same |
| CN102753001A (en) * | 2012-03-22 | 2012-10-24 | 深圳市英威腾电气股份有限公司 | Method for manufacturing electronic equipment |
| CN102753001B (en) * | 2012-03-22 | 2015-05-27 | 深圳市英威腾电气股份有限公司 | Method for manufacturing electronic equipment |
| CN104270901A (en) * | 2014-10-28 | 2015-01-07 | 湖北广兴通信科技有限公司 | Coating process on basis of 823 protective agent |
| CN104538317A (en) * | 2014-12-23 | 2015-04-22 | 成都九洲迪飞科技有限责任公司 | Heat-humidity prevention, mould prevention and salt mist prevention method for microwave substrate of bare tube core micro-package |
| CN111465209A (en) * | 2020-04-16 | 2020-07-28 | 四川九立微波有限公司 | Coating process for radio frequency circuit and radio frequency circuit |
| CN111465209B (en) * | 2020-04-16 | 2022-11-08 | 四川九立微波有限公司 | Coating process for radio frequency circuit and radio frequency circuit |
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