CN209767907U - waterproof type printed wiring board - Google Patents
waterproof type printed wiring board Download PDFInfo
- Publication number
- CN209767907U CN209767907U CN201821927397.9U CN201821927397U CN209767907U CN 209767907 U CN209767907 U CN 209767907U CN 201821927397 U CN201821927397 U CN 201821927397U CN 209767907 U CN209767907 U CN 209767907U
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- waterproof
- outer plate
- circuit board
- board body
- waterproof outer
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Abstract
The utility model discloses a waterproof printed circuit board, which comprises a circuit board body, wherein the left side and the right side of the circuit board body are provided with radiating holes, the upper side and the lower side of the circuit board body are provided with a first waterproof outer plate, and the left side and the right side are provided with a second waterproof outer plate; the periphery of the first waterproof outer plate is bent to one side of the circuit board body by a certain angle, and the periphery of the second waterproof outer plate is bent to one side of the circuit board body by a certain angle; so that the first waterproof outer plate is positioned inside the second waterproof outer plate, and the first waterproof outer plate is connected with the second waterproof outer plate through a connecting piece. The utility model discloses it is good to the protection of circuit board, and waterproof performance is good.
Description
Technical Field
The utility model belongs to the technical field of the printed wiring board, especially, relate to a waterproof type printed wiring board.
Background
the circuit board is the most active industry in the modern electronic component industry, and the industry growth speed of the circuit board is generally higher than that of the electronic component industry by about 3 percent. With the rapid development of electronic technology, the requirements on electronic products are higher and higher, the functions are more and more, the integration level of chips is higher and higher, and the design requirements on circuit boards are higher and higher in contrast to the integration level of chips.
Chinese patent network application number CN201520266164.9 discloses a waterproof circuit board, which includes: the circuit board body bonds the waterproof assembly on the circuit board body, and waterproof assembly includes: the circuit board comprises a first waterproof board bonded on the circuit board body, a second waterproof board fixed on the first waterproof board and forming a water receiving groove, and a heating sheet fixed between the first waterproof board and the second waterproof board. The waterproof problem can not be solved fundamentally in the aforesaid patent, just through the mode of heating with water treatment, nevertheless because the circuit board is a continuous process that generates heat also at the during operation, if through heat treatment, just probably influence the normal work of circuit board, also probably damage the components and parts on the circuit board in the twinkling of an eye when the circuit board is stained with water moreover.
SUMMERY OF THE UTILITY MODEL
Based on the problem that the background art exists, the utility model aims to provide a waterproof type printed wiring board that protection effect is good, and waterproof performance is good.
In order to achieve the purpose, the utility model provides a technical scheme does:
The utility model relates to a waterproof printed circuit board, which comprises a circuit board body, wherein the left side and the right side of the circuit board body are provided with heat dissipation holes, the upper side and the lower side of the circuit board body are provided with first waterproof outer plates, and the left side and the right side are provided with second waterproof outer plates; the periphery of the first waterproof outer plate is bent to one side of the circuit board body by a certain angle, and the periphery of the second waterproof outer plate is bent to one side of the circuit board body by a certain angle; the first waterproof outer plate is positioned in the second waterproof outer plate, and the first waterproof outer plate is connected with the second waterproof outer plate through a connecting piece; the first waterproof outer plate and the second waterproof outer plate are sequentially provided with a waterproof plate and a protective plate from inside to outside; a drying agent is filled between the waterproof plate and the protection plate; the both sides of first waterproof planking are equipped with the through-hole that corresponds with the louvre, install first heat dissipation stick in the louvre, and first heat dissipation stick passes the through-hole and extends to first waterproof planking outside.
Preferably, the periphery of the first waterproof outer plate is bent by 90 degrees towards the side of the circuit board body, and the periphery of the second waterproof outer plate is bent by 90 degrees towards the side of the circuit board body. After the water-proof plate is bent by 90 degrees, the material of the water-proof plate can be saved, and the water-retaining effect can be improved.
Preferably, the left side and the right side of the circuit board body are connected with second heat dissipation rods, and the second heat dissipation rods penetrate through holes of the second waterproof outer plate. The second radiating rod that increases can improve radiating speed, and the heat can distribute away from the both sides of circuit board body.
Preferably, the hole wall of the heat dissipation hole is coated with a heat conduction silicone grease layer, and the heat conduction silicone grease layer is mainly used for conducting heat dissipation, so that the heat dissipation effect is improved.
Preferably, the front-back length of the first waterproof outer plate on the upper side of the circuit board body is greater than the front-back length of the first waterproof outer plate on the lower side of the circuit board body. So that the first waterproof outer plate on the upper side can cover the first waterproof outer plate on the lower side after being bent.
Preferably, the inner side wall of the through hole is embedded with a water absorption sponge sleeve, and the water absorption sponge sleeve is embedded on the pupil, so that water can be prevented from permeating into the inner sides of the first waterproof outer plate and the second waterproof outer plate from the through hole.
adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
The utility model discloses a first waterproof planking and the waterproof planking of second surround the circuit board, have accomplished the all-round waterproof to the circuit board, still accomplish the effective heat dissipation to the circuit board through the heat dissipation stick simultaneously, set up the sponge cover that absorbs water in the through-hole that the heat dissipation stick pierces through, at the inside drier that fills of first waterproof planking and the waterproof planking of second, can effectively prevent that water from getting into inside from the through-hole, the temperature of heat dissipation stick can further carry out the drying to water moreover.
Drawings
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a plan view structure of the present invention:
FIG. 3 is an enlarged view of A in FIG. 1;
Fig. 4 is a sectional view B-B in fig. 1.
Description of the labels in the schematic:
1-a circuit board body; 2-heat dissipation holes; 3-a first waterproof outer panel; 4-a second waterproof outer panel; 5-a connector; 6-waterproof board; 7-protection plate; 8-a drying agent; 9-a through hole; 10-a first heat-dissipating bar; 11-a second heat-dissipating bar; 12-a water-absorbing sponge sleeve; 13-heat conductive silicone layer.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
Referring to fig. 1 to 4, the present embodiment relates to a waterproof printed circuit board, which includes a circuit board body 1, heat dissipation holes 2 are formed on left and right sides of the circuit board body 1, and heat conductive silicone grease layers 13 are coated on hole walls of the heat dissipation holes 2; the upper side and the lower side of the circuit board body 1 are provided with a first waterproof outer plate 3, and the left side and the right side are provided with a second waterproof outer plate 4; the periphery of the first waterproof outer plate 3 is bent by 90 degrees towards one side of the circuit board body 1, and the periphery of the second waterproof outer plate 4 is bent by 90 degrees towards one side of the circuit board body; meanwhile, the first waterproof outer plate 3 is positioned inside the second waterproof outer plate 4, and the first waterproof outer plate 3 is connected with the second waterproof outer plate 4 through a connecting piece 5; the first waterproof outer plate 3 and the second waterproof outer plate 4 are sequentially provided with a waterproof plate 6 and a protective plate 7 from inside to outside; the protection plate 7 is made of aluminum alloy plates, the waterproof plate 6 is made of silicon dioxide waterproof plates, and drying agents 8 are filled between the waterproof plate 6 and the protection plate 7; the desiccant 8 is a silica gel desiccant. The front-back length of the first waterproof outer plate 3 on the upper side of the circuit board body 1 is greater than that of the first waterproof outer plate 3 on the lower side of the circuit board body 1, so that the first waterproof outer plate 3 on the upper side can cover the first waterproof outer plate 3 on the lower side after being bent.
The both sides of first waterproof planking 3 are equipped with the through-hole 9 that corresponds with louvre 4, install first radiating rod 10 in the louvre 4, and first radiating rod 10 passes through-hole 9 and extends to first waterproof planking 3 outsides. The left and right sides of circuit board body 1 is connected with second radiating rod 11, second radiating rod 11 pass through the through-hole 9 of the waterproof planking 4 of second, the expert, inlay on the 9 inside wall and be equipped with water-absorbing sponge cover 12. The first radiating rod 11 and the second radiating rod 12 radiate heat simultaneously, so that the radiating effect of the circuit board is improved. The water-absorbing sponge sleeve 12 is embedded on the pupil, so that water can be prevented from permeating into the inner sides of the first waterproof outer plate 3 and the second waterproof outer plate 4 from the through hole 9, and the drying agent 8 can just dry the water absorbed by the water-absorbing sponge sleeve 12.
The utility model discloses a waterproof principle:
When the circuit board works, if water is scattered accidentally, water can be kept out of the first waterproof outer plate 3 and the second waterproof plate 4, if water permeates from the through hole 9, the water can be absorbed by the water-absorbing sponge sleeve 12 in the through hole 9, and then the water can be dried by the drying agents 8 in the first waterproof outer plate 3 and the second waterproof plate 4, meanwhile, the first heat dissipation rod 10 and the second heat dissipation rod 11 can dissipate heat, the temperature of the first heat dissipation rod 10 and the temperature of the second heat dissipation rod 11 can dry the water and the water-absorbing sponge sleeve 12, and therefore the efficient waterproof effect is achieved.
the present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is merely an embodiment of the present invention, and the actual structure is not limited thereto. Therefore, those skilled in the art should understand that they can easily and effectively implement the present invention without departing from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a waterproof type printed wiring board which characterized in that: the circuit board comprises a circuit board body, wherein heat dissipation holes are formed in the left side and the right side of the circuit board body, a first waterproof outer plate is arranged on the upper side and the lower side of the circuit board body, and a second waterproof outer plate is arranged on the left side and the right side of the circuit board body; the periphery of the first waterproof outer plate is bent to one side of the circuit board body by a certain angle, and the periphery of the second waterproof outer plate is bent to one side of the circuit board body by a certain angle; the first waterproof outer plate is positioned in the second waterproof outer plate, and the first waterproof outer plate is connected with the second waterproof outer plate through a connecting piece; the first waterproof outer plate and the second waterproof outer plate are sequentially provided with a waterproof plate and a protective plate from inside to outside; a drying agent is filled between the waterproof plate and the protection plate; the both sides of first waterproof planking are equipped with the through-hole that corresponds with the louvre, install first heat dissipation stick in the louvre, and first heat dissipation stick passes the through-hole and extends to first waterproof planking outside.
2. The waterproof printed wiring board according to claim 1, characterized in that: the periphery of the first waterproof outer plate is bent for 90 degrees towards the side of the circuit board body, and the periphery of the second waterproof outer plate is bent for 90 degrees towards the side of the circuit board body.
3. The waterproof printed wiring board according to claim 1, characterized in that: the left and right sides of circuit board body is connected with the second radiating rod, the second radiating rod pass the through-hole of the waterproof planking of second.
4. The waterproof printed wiring board according to claim 1, characterized in that: and the hole wall of the heat dissipation hole is coated with a heat conduction silicone grease layer.
5. The waterproof printed wiring board according to claim 1, characterized in that: the front-back length of the first waterproof outer plate on the upper side of the circuit board body is greater than that of the first waterproof outer plate on the lower side of the circuit board body.
6. the waterproof printed wiring board according to claim 3, characterized in that: and a water-absorbing sponge sleeve is embedded on the inner side wall of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821927397.9U CN209767907U (en) | 2018-11-22 | 2018-11-22 | waterproof type printed wiring board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821927397.9U CN209767907U (en) | 2018-11-22 | 2018-11-22 | waterproof type printed wiring board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209767907U true CN209767907U (en) | 2019-12-10 |
Family
ID=68744670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821927397.9U Active CN209767907U (en) | 2018-11-22 | 2018-11-22 | waterproof type printed wiring board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209767907U (en) |
-
2018
- 2018-11-22 CN CN201821927397.9U patent/CN209767907U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |