CN211047381U - Sealed waterproof dustproof exhaust structure of printed circuit - Google Patents
Sealed waterproof dustproof exhaust structure of printed circuit Download PDFInfo
- Publication number
- CN211047381U CN211047381U CN201922229618.6U CN201922229618U CN211047381U CN 211047381 U CN211047381 U CN 211047381U CN 201922229618 U CN201922229618 U CN 201922229618U CN 211047381 U CN211047381 U CN 211047381U
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- circuit board
- layer
- heat dissipation
- printed circuit
- printed
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Abstract
The utility model discloses a sealed waterproof dustproof exhaust structure of printed circuit, which belongs to the technical field of printed circuit, comprising a printed circuit board main body, wherein the printed circuit board main body mainly comprises a circuit board a and a circuit board b, an insulating ink layer a is arranged on the opposite side surface of the circuit board a and the circuit board b, a plurality of conducting blocks a electrically connected with the circuit board a are fixedly arranged on the lower surface of the circuit board a, a conducting block b electrically connected with the circuit board b is fixedly arranged at the position of the upper surface of the circuit board b opposite to the conducting block b, and a key cavity is formed between the conducting block a and the conducting block b; utilize air channel printing air guide channel and exhaust hole intercommunication each other, and then can ensure that the inside gas of button cavity can effectively get rid of, guarantee the switch-on between conducting block an and the conducting block b, utilize the printing air guide channel that has a plurality of bends simultaneously can be fine block water and dust, play waterproof dirt-proof effect and the carminative effect of product.
Description
Technical Field
The utility model belongs to the technical field of the printed circuit, concretely relates to waterproof dustproof exhaust structure of printed circuit seal.
Background
Before the appearance of printed circuit boards, the interconnection between electronic components is realized by means of direct connection of electric wires to form a complete circuit, in the present generation, circuit panels exist only as effective experimental tools, while the printed circuit boards have already become the dominating position in the electronic industry, the printed circuit boards are developed from single-layer boards to double-sided boards, multi-layer boards and flexible boards, and are continuously developed towards high precision, high density and high reliability, the size is continuously reduced, the cost is reduced, and the performance is improved, so that the printed circuit boards still keep strong vitality in the development process of future electronic products.
The existing printed circuit board has incomplete functions when used after being printed, and lacks necessary waterproof, dustproof and exhaust functions, so that the printed circuit board has low efficiency when used, and simultaneously lacks necessary waterproof performance and low heat dissipation efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waterproof dustproof exhaust structure of printed circuit sealing to solve the problem of proposing among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a printed circuit sealing waterproof dustproof exhaust structure comprises a printed circuit board main body, wherein the printed circuit board main body mainly comprises a circuit board a and a circuit board b, an insulating ink layer a is arranged on one side surface of the circuit board a opposite to the circuit board b, a plurality of conductive blocks a electrically connected with the circuit board a are fixedly arranged on the lower surface of the circuit board a, a conductive block b electrically connected with the circuit board b is fixedly arranged at the position of the upper surface of the circuit board b, which is opposite to the conductive blocks b, a key cavity is formed between the conductive blocks a and the conductive blocks b, an air vent groove, a printed air guide groove and an exhaust hole are formed in the upper surface of the circuit board b, the right end of the air vent groove is communicated with the key cavity where the conductive blocks b are located, the left end of the air vent groove is communicated with the printed air guide groove, the printed air guide groove is also communicated with the exhaust hole, the upper surface of the circuit board a and, and the side that two insulating ink layers b kept away from each other all fixed mounting have the heat dissipation layer, the side coating that insulating ink layer b was kept away from on the heat dissipation layer is by the tin coating, the side coating that the heat dissipation layer was kept away from on the tin coating has the waterproof layer, the left and right sides face and the front and back both sides face of printed wiring board main part all bond there is the sealing layer.
Adopt above-mentioned scheme, through setting up the air channel, the printing air guide channel, exhaust hole and sealing layer, utilize air channel printing air guide channel and exhaust hole intercommunication each other, and then can ensure that the inside gas of button cavity can effectively be got rid of, guarantee the switch-on between conducting block an and the conducting block b, utilize the printing air guide channel that has a plurality of bends simultaneously can be fine block water and dust, play waterproof dirt-proof effect and the carminative effect of product, through setting up the heat dissipation layer, tin coating and waterproof layer, utilize heat dissipation layer and louvre cooperation to dispel the heat fast, effectively promote the radiating efficiency, the life of extension printed wiring board main part, utilize tin coating and waterproof layer to make the printed wiring board main part possess good anti-oxidant corrosion performance and waterproof performance, thereby perfect functional diversity.
In a preferred embodiment, the printed air guide channel is embodied as a groove having a plurality of bends.
Adopt above-mentioned scheme, through setting up the printing air guide channel into the slot that has a plurality of bends, and then make water and dust blocked after entering into the printing air guide channel, only gaseous coming in, and then can play waterproof dirt-proof effect and the carminative effect of product.
As a preferred embodiment, the vent holes sequentially penetrate the circuit board b and the sealing layer and the diameters of the vent holes are sequentially reduced from the middle to the edge.
Adopt above-mentioned scheme, through setting up the exhaust hole that the diameter reduces in proper order from the centre to the edge, and then can avoid the process exhaust hole that dust impurity is as few as possible to enter into the printing air guide ditch when can guaranteeing that gas can effectively discharge again.
As a preferred embodiment, the upper surface and the lower surface of the printed circuit board main body are respectively provided with a plurality of heat dissipation holes, and the heat dissipation holes sequentially penetrate through the waterproof layer and the tin-plated layer.
By adopting the scheme, the heat dissipation layers can be matched with the plurality of heat dissipation holes to quickly dissipate heat, so that the heat dissipation efficiency is effectively improved, and the service life of the printed circuit board main body is further prolonged.
As a preferred embodiment, the heat dissipation layer is made of copper heat dissipation fins.
By adopting the scheme, the copper radiating fins are used as the radiating layers, so that heat generated when the circuit board a and the circuit board b work can be well radiated, and the radiating efficiency is improved.
As a preferred embodiment, the material of the waterproof layer is specifically a nano fluorocarbon waterproof coating.
By adopting the scheme, the nano fluorocarbon waterproof coating is used as a waterproof layer to be coated on the upper surface and the lower surface of the printed circuit board main body, so that the printed circuit board main body has good waterproof performance.
In a preferred embodiment, the sealing layer is specifically made of a urethane rubber gasket.
By adopting the scheme, the periphery of the printed circuit board main body is sealed by the polyurethane rubber sealing gasket, and the sealing effect is good.
Compared with the prior art, the beneficial effects of the utility model are that:
the printed circuit sealed waterproof dustproof exhaust structure is provided with the vent grooves, the printed air guide grooves, the exhaust holes and the sealing layers, and the vent grooves are communicated with the printed air guide grooves and the exhaust holes, so that gas in the key cavity can be effectively exhausted, the connection between the conductive block a and the conductive block b is ensured, meanwhile, water and dust can be well blocked by the printed air guide grooves with a plurality of bends, and the waterproof dustproof effect and the product exhaust effect are achieved;
this sealed waterproof dustproof exhaust structure of printed circuit utilizes heat dissipation layer and louvre cooperation to dispel the heat fast through setting up heat dissipation layer, tin coating and waterproof layer, effectively promotes the radiating efficiency, prolongs the life of printed circuit board main part, utilizes tin coating and waterproof layer to make the printed circuit board main part possess good anti-oxidant corrosion performance and waterproof performance to perfect functional diversity.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the printing air guide channel of the present invention.
In the figure: 1. a printed wiring board main body; 2. a circuit board a; 3. a circuit board b; 4. an insulating ink layer a; 5. a conductive block a; 6. a conductive block b; 7. a key cavity; 8. a vent channel; 9. printing an air guide channel; 10. an exhaust hole; 11. an insulating ink layer b; 12. a heat dissipation layer; 13. plating a tin layer; 14. a waterproof layer; 15. heat dissipation holes; 16. and (7) sealing the layer.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
Referring to fig. 1-2, the present invention provides a sealed waterproof and dustproof exhaust structure for printed circuit, including a printed circuit board main body 1, the printed circuit board main body 1 mainly comprises a circuit board a2 and a circuit board b3, an insulating ink layer a4 is disposed on a side surface of the circuit board a2 opposite to the circuit board b3, a plurality of conductive blocks a5 electrically connected to the circuit board a2 are fixedly mounted on a lower surface of the circuit board a2, a conductive block b6 electrically connected to the circuit board b3 is fixedly mounted on a position of an upper surface of the circuit board b3 facing the conductive block b6, a key cavity 7 is formed between the conductive block a5 and the conductive block b6, a vent groove 8, a printed gas guide groove 9 and an exhaust hole 10 are disposed on an upper surface of the circuit board b3, the printed gas guide groove 9 is specifically a groove with a plurality of bends (see fig. 1; through setting up printing air guide channel 9 to the slot that has a plurality of bends, and then make water and dust blocked after entering into printing air guide channel 9, only gaseous coming in, and then can play waterproof dirt-proof effect and the carminative effect of product.
The vent hole 10 penetrates the circuit board b3 and the sealing layer 16 in sequence and the diameter of the vent hole 10 decreases from the middle to the edge in sequence (see fig. 1); through setting up the exhaust hole 10 that the diameter reduces in proper order from the centre to the edge, and then can avoid dust impurity as far as possible entering into printing air guide channel 9 through exhaust hole 10 when can ensure that gas can effectively discharge.
The right end of the vent groove 8 is communicated with the key cavity 7 where the conductive block b6 is located, the left end of the vent groove 8 is communicated with the printing air guide groove 9, the printing air guide groove 9 is also communicated with the exhaust hole 10, the upper surface of the circuit board a2 and the lower surface of the circuit board b3 are both coated with an insulating ink layer b11, a heat dissipation layer 12 is fixedly mounted on one side surface of each of the two insulating ink layers b11, the upper surface and the lower surface of the printed circuit board main body 1 are respectively provided with a plurality of heat dissipation holes 15, and the heat dissipation holes 15 sequentially penetrate through a waterproof layer 14 and a tin-plated layer 13 (see figure 1); through a plurality of louvres 15 that set up, can cooperate heat dissipation layer 12 to come the rapid heat dissipation, effectively promote the radiating efficiency, further prolong the life of printed wiring board main part 1.
The heat dissipation layer 12 is made of copper heat dissipation fins (see fig. 1); the copper heat dissipation fins are used as the heat dissipation layer 12, so that heat generated during working of the circuit board a2 and the circuit board b3 can be well dissipated, and the heat dissipation efficiency is improved.
A tin-plated layer 13 is coated on one side of the heat dissipation layer 12 away from the insulating ink layer b11, a waterproof layer 14 is coated on one side of the tin-plated layer 13 away from the heat dissipation layer 12, and the waterproof layer 14 is specifically made of a nano fluorocarbon waterproof coating (see fig. 1); the nano fluorocarbon waterproof paint is used as a waterproof layer 14 to be coated on the upper surface and the lower surface of the printed circuit board main body 1, so that the printed circuit board main body 1 has good waterproof performance.
When using, when using printed wiring board main part 1, people make conducting block a5 remove downwards when pressing circuit board a2, and then make circuit board a2 and circuit board b3 realize the electrical property and switch on with conducting block b6 contact, simultaneously the gas in the button cavity 7 enters into printing air guide channel 9 through air channel 8, and then discharge through exhaust hole 10, simultaneously utilize the printing air guide channel 9 that has a plurality of bends can be fine block water and dust, the only gas that comes, play waterproof dirt-proof effect and product exhaust effect, utilize heat dissipation layer 12 and louvre 15 cooperation to dispel the heat fast simultaneously, effectively promote radiating efficiency, prolong printed wiring board main part 1's life, utilize tin coating 13 and waterproof layer 14 to make printed wiring board main part 1 possess good anti-oxidant corrosion performance and waterproof performance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a waterproof dustproof exhaust structure of printed circuit sealed, includes printed wiring board main part (1), its characterized in that: the printed circuit board main body (1) mainly comprises a circuit board a (2) and a circuit board b (3), an insulating ink layer a (4) is arranged on one side surface of the circuit board a (2) opposite to the circuit board b (3), a plurality of conductive blocks a (5) electrically connected with the circuit board a (2) are fixedly mounted on the lower surface of the circuit board a (2), a conductive block b (6) electrically connected with the circuit board b (3) is fixedly mounted at a position, opposite to the conductive block b (6), on the upper surface of the circuit board b (3), a key cavity (7) is formed between the conductive blocks a (5) and the conductive block b (6), an air vent groove (8), a printed air guide groove (9) and an air vent hole (10) are formed in the upper surface of the circuit board b (3), the right end of the air vent groove (8) is communicated with the key cavity (7) where the conductive block b (6) is located, the left end and the printing of air channel (8) are led air channel (9) and are linked together, printing air channel (9) still are linked together with exhaust hole (10), the upper surface of circuit board a (2) and the lower surface of circuit board b (3) all coat by insulating ink layer b (11), and the equal fixed mounting in a side that two insulating ink layer b (11) kept away from each other has heat dissipation layer (12), a side coating that insulating ink layer b (11) were kept away from in heat dissipation layer (12) is by tin coating (13), the side coating that heat dissipation layer (12) were kept away from in tin coating (13) has waterproof layer (14), the left and right sides face and the front and back both sides face of printed wiring board main part (1) all bond sealing layer (16).
2. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the printing air guide groove (9) is a groove with a plurality of bends.
3. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the exhaust holes (10) sequentially penetrate through the circuit board b (3) and the sealing layer (16) and the diameters of the exhaust holes (10) are sequentially reduced from the middle to the edge.
4. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the upper surface and the lower surface of the printed circuit board main body (1) are respectively provided with a plurality of heat dissipation holes (15), and the heat dissipation holes (15) sequentially penetrate through the waterproof layer (14) and the tin coating (13).
5. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the heat dissipation layer (12) is made of copper heat dissipation fins.
6. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the waterproof layer (14) is specifically made of nano fluorocarbon waterproof paint.
7. The printed wiring sealed waterproof dustproof exhaust structure according to claim 1, characterized in that: the sealing layer (16) is made of a polyurethane rubber sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229618.6U CN211047381U (en) | 2019-12-13 | 2019-12-13 | Sealed waterproof dustproof exhaust structure of printed circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922229618.6U CN211047381U (en) | 2019-12-13 | 2019-12-13 | Sealed waterproof dustproof exhaust structure of printed circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211047381U true CN211047381U (en) | 2020-07-17 |
Family
ID=71567307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922229618.6U Expired - Fee Related CN211047381U (en) | 2019-12-13 | 2019-12-13 | Sealed waterproof dustproof exhaust structure of printed circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211047381U (en) |
-
2019
- 2019-12-13 CN CN201922229618.6U patent/CN211047381U/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: 20200717 Termination date: 20201213 |