CN211880852U

CN211880852U - PCB circuit board with dampproofing dustproof function

Info

Publication number: CN211880852U
Application number: CN202020017397.6U
Authority: CN
Inventors: 周彬; 鲁成洲
Original assignee: Shenzhen Xinsheng Electronic Technology Co ltd
Current assignee: Shenzhen Xinsheng Electronic Technology Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-11-06
Anticipated expiration: 2030-01-03

Abstract

The utility model discloses a PCB circuit board with dampproofing dustproof function, including main tank, sealing washer, encapsulation lid, low temperature heater, hydrofuge fan, radiator fan and PCB mainboard, the main tank is fixed to be even as an organic whole by inner box and outer container and constitutes, and the PCB mainboard that is equipped with a plurality of air vents is inserted and installed in the inner box, form U type inner chamber between inner box and the outer container, two openings of U type inner chamber correspond respectively and are equipped with two first dustproof net gapes, this kind of PCB circuit board with dampproofing dustproof function adopts two-box design, can effectively remove damp with the outside air in the U type inner chamber between outer container and inner box, adopts double-deck dust removal net gape design, can guarantee that the air that enters in the inner box has good aridity and dustless effect, is equipped with the drying that has low temperature heater box simultaneously, can make the inside circulated drier use for a long time, the economic cost is reduced, and the damage of the circuit board caused by the fact that the drying agent is not replaced and failed for a long time is avoided.

Description

PCB circuit board with dampproofing dustproof function

Technical Field

The utility model relates to a circuit board device especially relates to a PCB circuit board with dampproofing dustproof function.

Background

The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout. The Circuit Board can be called as a Printed Circuit Board or a Printed Circuit Board, and the english name (Printed Circuit Board) PCB, (Flexible Printed Circuit Board) FPC Circuit Board (FPC Circuit Board also called as Flexible Circuit Board) FPC Circuit Board (FPC Circuit Board is made of polyimide or polyester film as a base material, has high reliability, excellent Flexible Printed Circuit Board, has the characteristics of high wiring density, light weight, thin thickness and good bending property), and Soft and hard combination Board (Soft and hard combination Board) -FPC and PCB are born and developed, and the new product of Soft and hard combination Board is promoted. Therefore, the rigid-flex circuit board is a circuit board with FPC (flexible printed circuit) characteristics and PCB (printed circuit board) characteristics, which is formed by combining a flexible circuit board and a rigid circuit board according to relevant process requirements through processes such as pressing and the like.

Now provide a PCB circuit board with dampproofing dustproof function, adopt the design of two casees, can just can effectively remove the tide with the outside air in the U type inner chamber between outer container and inner box, adopt the design of double-deck dust removal net gape, the air that can guarantee to enter in the inner box has good aridity and dustless effect, be equipped with the drying agent box that has low temperature heating ware simultaneously, can make inside circulated drier use for a long time, reduce economic cost, avoid because the drier does not change the damage that the inefficacy caused the circuit board for a long time, improve the life of whole circuit board.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PCB circuit board with dampproofing dustproof function to solve the problem that proposes in the above-mentioned background art.

The purpose of the utility model is realized by the following technical proposal: the utility model provides a PCB circuit board with dampproofing dustproof function, includes main case, sealing washer, encapsulation lid, low temperature heater, hydrofuge fan, radiator fan and PCB mainboard, the main case is by the fixed even constitution as an organic whole of inner box and outer container, the PCB mainboard bayonet mounting that is equipped with a plurality of air vents in the inner box, form U type inner chamber between inner box and the outer container, two openings part of U type inner chamber correspond respectively and are equipped with two first dust screen openings, and U type inner chamber buckling department is equipped with the drier box, the drier box passes through the fixture block and spacing in U type inner chamber, corresponds in the drier box and is equipped with low temperature heater, and the bottom of U type inner chamber is equipped with the hydrofuge fan of installing on the outer container simultaneously, the inner box with the hydrofuge fan corresponds and is equipped with second dust screen opening on the position, for the inner box opposite side of second dust screen opening corresponds and is equipped.

Furthermore, the top of the main box is sealed and fixed by a packaging cover with a sealing ring.

Furthermore, a silica gel desiccant is arranged in the desiccant box, and the silica gel desiccant is symmetrically arranged on two sides of the U-shaped inner cavity and used for plugging the U-shaped inner cavity.

Further, the heating temperature of the low-temperature heater is 50-60 ℃.

Furthermore, the heat radiation fan is connected with the output end of the selection switch, and the other output end of the selection switch is respectively connected with the low-temperature heater and the dehumidifying fan in series through the timing switch.

Compared with the prior art, the device's beneficial effect is this kind of PCB circuit board with dampproofing dustproof function, adopt two case designs, can just can effectively remove the tide with the air of outside in the U type inner chamber between outer container and inner box, adopt the design of double-deck dust removal net gape, the air that can guarantee to enter in the inner box has good aridity and dustless effect, be equipped with the drying agent box that has low temperature heating ware simultaneously, can make inside circulated drier use for a long time, reduce economic cost, avoid because the drying agent is not changed the damage that the inefficacy caused the circuit board for a long time.

Drawings

Fig. 1 is a diagram of the internal structure of a main box of a PCB with moisture-proof and dust-proof functions according to the present invention;

fig. 2 is an overall front view of a PCB circuit board with moisture and dust prevention functions according to the present invention;

fig. 3 is a block diagram of an internal circuit of a PCB circuit board with moisture and dust prevention functions according to the present invention;

in the figure: 1. the drying device comprises a main box, 11, an outer box, 12, an inner box, 13, a first dustproof mesh opening, 14, a drying agent box, 15, a clamping block, 16, a second dustproof mesh opening, 2, a sealing ring, 3, a packaging cover, 4, a low-temperature heater, 5, a dehumidifying fan, 6, a cooling fan, 7, a PCB mainboard, 71 and an air vent.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work are within the scope of the present invention.

As shown in fig. 1-3, the present invention discloses a PCB circuit board with moisture-proof and dust-proof functions, which comprises a main box 1, a sealing ring 2, a packaging cover 3, a low temperature heater 4, a dehumidifying fan 5, a heat dissipating fan 6 and a PCB mainboard 7, wherein the main box 1 is formed by fixedly connecting an inner box 12 and an outer box 11 into a whole, the PCB mainboard 7 provided with a plurality of vent holes 71 is inserted into the inner box 12, a U-shaped inner cavity is formed between the inner box 12 and the outer box 11, two openings of the U-shaped inner cavity are respectively and correspondingly provided with two first dust-proof net ports 13, a bending part of the U-shaped inner cavity is provided with a drying agent box 14, the drying agent box 14 is limited in the U-shaped inner cavity through a clamping block 15, the low temperature heater 4 is correspondingly arranged in the drying agent box 14, the bottom of the U-shaped inner cavity is provided with a dehumidifying fan 5 arranged on the outer box 11, a second dust-proof net port 16 is arranged at, and a heat radiation fan 6 is correspondingly arranged on the other side of the inner box 12 opposite to the second dustproof net opening 16.

The top of the main box 1 is sealed and fixed by a packaging cover 3 with a sealing ring 2. And the first dustproof net port 13 and the second dustproof net port 16 are respectively and correspondingly provided with a dustproof net and an adsorption piece. And silica gel drying agents are arranged in the drying agent box 14, are symmetrically arranged at two sides of the U-shaped inner cavity and plug the U-shaped inner cavity. The heating temperature of the low-temperature heater 4 is 50-60 ℃. The heat radiation fan is connected with the output end of the selection switch, the other output end of the selection switch is respectively connected with the low-temperature heater 4 and the dehumidifying fan 5 in series through the timing switch, when in use, the main device is used for controlling the selection switch to carry out selection judgment work, when the PCB needs to dissipate heat, the cooling fan 6 works to make the external cold air enter the first dust screen port 13, the drying agent box 14 and the second dust screen port 16 in sequence to make the external air effectively remove dust and dehumidify and enter the inner box 12 to make the PCB main board in the inner box 12 effectively dissipate heat, meanwhile, when the PCB does not need heat dissipation, the selection switch is connected with the timing switch, and when the timing switch meets the time requirement, such as one week time, the dehumidifying fan 5 and the low-temperature heater 4 are communicated through the timing switch to work, and moisture absorbed in the drying agent box is effectively removed.

This kind of PCB circuit board with dampproofing dustproof function, adopt the design of two casees, can just can effectively remove the tide with the outside air in the U type inner chamber between outer container and inner box, adopt the design of double-deck dust removal net gape, can guarantee that the air that enters in the inner box has good aridity and dustless effect, be equipped with the drier box that has low temperature heating ware simultaneously, can make inside circulated drier use for a long time, and economic cost is reduced, avoid because the drier does not change the damage that the inefficacy caused the circuit board for a long time.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a PCB circuit board with dampproofing dustproof function, includes main tank (1), sealing washer (2), encapsulation lid (3), low temperature heater (4), hydrofuge fan (5), radiator fan (6) and PCB mainboard (7), its characterized in that: the main box (1) is formed by fixedly connecting an inner box (12) and an outer box (11) into a whole, a PCB main board (7) provided with a plurality of vent holes (71) is installed in the inner box (12) in an inserting way, a U-shaped inner cavity is formed between the inner box (12) and the outer box (11), two openings of the U-shaped inner cavity are respectively and correspondingly provided with two first dustproof net openings (13), a drying agent box (14) is arranged at the bent part of the U-shaped inner cavity, the drying agent box (14) is limited in the U-shaped inner cavity through a clamping block (15), a low-temperature heater (4) is correspondingly arranged in the drying agent box (14), and meanwhile, the bottom of the U-shaped inner cavity is provided with a dehumidifying fan (5) arranged on the outer box (11), the inner box (12) and the dehumidifying fan (5) are correspondingly provided with a second dustproof net opening (16), and the other side of the inner box (12) corresponding to the second dustproof net opening (16) is provided with a radiating fan (6).

2. The PCB circuit board with moisture and dust preventing functions of claim 1, wherein: the top of the main box (1) is sealed and fixed by a packaging cover (3) with a sealing ring (2).

3. The PCB circuit board with moisture and dust preventing functions of claim 1, wherein: and silica gel drying agents are arranged in the drying agent box (14), and are symmetrically arranged on two sides of the U-shaped inner cavity and used for plugging the U-shaped inner cavity.

4. The PCB circuit board with moisture and dust preventing functions of claim 1, wherein: the heating temperature of the low-temperature heater (4) is 50-60 ℃.

5. The PCB circuit board with moisture and dust preventing functions of claim 1, wherein: the heat radiation fan is connected with the output end of the selection switch, and the other output end of the selection switch is respectively connected with the low-temperature heater (4) and the dehumidifying fan (5) in series through the timing switch.