CN217544090U

CN217544090U - Waterproof and breathable device for outdoor module

Info

Publication number: CN217544090U
Application number: CN202221472939.4U
Authority: CN
Inventors: 陈春根; 高宏亮; 王永华; 常飞
Original assignee: Shanghai Sansi Technology Co Ltd; Shanghai Sansi Electronic Engineering Co Ltd; Jiashan Sansi Photoelectric Technology Co Ltd; Pujiang Sansi Optoelectronics Technology Co Ltd
Current assignee: Shanghai Sansi Technology Co Ltd; Shanghai Sansi Electronic Engineering Co Ltd; Jiashan Sansi Photoelectric Technology Co Ltd; Pujiang Sansi Optoelectronics Technology Co Ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-04
Anticipated expiration: 2032-06-13

Abstract

The utility model provides a waterproof ventilative device for outdoor module, including PCB board, module casing, the module casing is fixed on PCB board, still includes control assembly, waterproof cover body and ventilative water proof membrane, the control assembly sets up in the module casing and is connected with PCB board, the waterproof cover body is fixed on the module casing of control assembly outside department; the waterproof cover body is further provided with a plurality of threading holes for communication connection, and the outer walls of the threading holes are provided with breathable waterproof films. The utility model discloses a set up the water proof cover body and twine ventilative waterproof membrane on the through wires hole outer wall of the water proof cover body, can make outdoor module have waterproof function, can exchange the gas that electronic components produced when temperature variation through ventilative waterproof membrane and outside air again, play the ventilation effect, only need to electronic components brush three proofings lacquer can. The waterproof effect is good, has prolonged the life of outdoor module, has reduced the maintenance frequency.

Description

Waterproof and breathable device for outdoor module

Technical Field

The utility model relates to an outdoor display screen watertight fittings equipment technical field especially relates to a waterproof ventilative device for outdoor module.

Background

The outdoor LED electronic display screen usually appears in the form of outdoor media, the outdoor media refers to media for publishing information of advertisements arranged in outdoor places such as roofs of main buildings, front doors of commercial districts, roadsides and the like, the outdoor LED electronic display screen media is a trend of the development of the 21 st century advertising industry, is indoor and outdoor advertisement display equipment with audio and video functions, belongs to a leading high-tech product at home, and is widely applied to various places.

Outdoor LED electronic display screen will carry out waterproof setting in the open air, and current outdoor display screen module is waterproof mainly to brush three proofings lacquer and encapsulating, and encapsulating and three proofings lacquer need carry out all-round parcel just can reach water-proof effects to electronic components, but has following problem among the prior art:

1. on one hand, the three-proofing paint and the potting adhesive cannot be brushed in place, namely the three-proofing paint and the potting adhesive cannot be completely covered at the pin of the electronic component or the gap between the electronic component and the PCB; for example, the filter capacitor is provided with a welding base, the base is easy to generate a gap with a PCB, and three-proofing paint and glue pouring can not be completely covered.

2. On the other hand, a closed space is formed after the three-proofing paint and the potting adhesive are wrapped, and gas, such as a filter capacitor, can be generated when some electronic components work; before and after the filter capacitor works, gas is released when the temperature changes, the generated gas expands to destroy the three-proofing paint and the potting adhesive, the thickness of the potting adhesive is about three millimeters, and the thickness of the potting adhesive can be destroyed after the gas expands; meanwhile, the three-proofing paint is very thin and is easily burst by gas expansion, and in addition, the damage of the three-proofing paint and the glue filling glue layer is accelerated because the outdoor environment is often exposed to the sun and rain.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the to-be-solved technical problem of the utility model is to provide a waterproof ventilation device, can make outdoor LED electronic display screen have waterproof function, can exchange electronic components's the gas that produces when the temperature variation with LED electronic display screen outside again, play ventilative function.

In order to achieve the above object, the present invention provides a waterproof and breathable device for an outdoor module, which comprises a PCB board, a module housing fixed on the PCB board, a control assembly, a waterproof cover body and a breathable waterproof membrane, wherein the control assembly is arranged in the module housing and connected with the PCB board, and the waterproof cover body is fixedly arranged on the module housing at the outer side of the control assembly; the waterproof cover body is further provided with a plurality of threading holes for communication connection, and the outer walls of the threading holes are provided with breathable waterproof films.

Preferably, a sealing ring is arranged between the waterproof cover body and the module shell.

Preferably, a plurality of the threading holes are penetrated with power lines and signal lines, and the power lines and the signal lines are connected with the control assembly.

Preferably, the breathable waterproof film is wound on and covers the outer wall of the threading hole, the periphery of the power line and the periphery of the signal line at the same time.

Preferably, a gap flow channel exists between the power line and the inner wall of the threading hole.

Preferably, a gap flow channel exists between the signal wire and the inner wall of the threading hole.

Preferably, clearance runners are arranged between the signal wire, the power wire and the inner wall of the threading hole.

Preferably, the waterproof and breathable device for the outdoor module further comprises a filter capacitor, wherein the filter capacitor is arranged on the PCB and is communicated with the gap flow channel of the threading hole.

Preferably, the module shell is connected with the PCB through a plurality of fasteners; the surface of the module shell is provided with a diversion trench.

Preferably, the waterproof cover body comprises an upper body, a middle body and a lower body, wherein a convex shape is formed among the upper body, the middle body and the lower body; the threading hole is vertically arranged on the bottom surface of the lower part body.

As described above, the utility model relates to a waterproof ventilative device for outdoor module has following beneficial effect:

the utility model relates to a waterproof ventilative device for outdoor module, through setting up the waterproof cover body and twine ventilative waterproof membrane on the through wires hole outer wall of the waterproof cover body, can make outdoor module have waterproof function, can exchange the gas that electronic components produced when the temperature variation through ventilative waterproof membrane and outside air again, play ventilative effect. In order to further prevent water vapor, only three-proofing paint is needed to be brushed on the electronic components. Compared with the mode of brushing three-proofing paint and pouring glue on the electronic component in the prior art, the method effectively avoids water inflow caused by incomplete full coverage of the three-proofing paint and the pouring glue on the electronic component and prevents the three-proofing paint and the pouring glue from being blown out due to the fact that the temperature of the electronic component changes and the gas is released to cause the waterproof function of the three-proofing paint and the pouring glue to be lost. The waterproof effect is good, has prolonged the life of outdoor module, has reduced the maintenance frequency.

Drawings

Fig. 1 is a front view of the waterproof and breathable device for outdoor modules of the present invention;

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

figure 4 is a cross-sectional view of the waterproof cover body of the waterproof and breathable device for an outdoor module of the present invention.

Description of reference numerals:

1. a module housing; 101. a PCB board; 102. a filter capacitor; 103. a control component; 104. a fastener; 105. a diversion trench; 2. a waterproof cover body; 201. an upper body; 202. a middle body; 203. a lower body; 204. an upper inclined plane; 205. a lower inclined plane; 206. a threading hole; 207. a waterproof cover screw; 3. a breathable waterproof film; 4. a seal ring; 5. a signal line; 6. a power line; 7. and a gap flow passage.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the drawings of the present application are only used to match the contents disclosed in the specification, so as to be known and read by those skilled in the art, and not to limit the practical limitations of the present invention, so that the present application does not have any technical significance, and any modification of the structure, change of the ratio relationship, or adjustment of the size should still fall within the scope of the present application without affecting the function and the achievable purpose of the present application. In addition, the terms such as "upper", "lower", "left", "right", "middle", etc. used in the present specification are only for convenience of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms should be construed as the scope of the present invention without substantial technical changes.

As shown in fig. 2, the utility model provides a waterproof ventilative device for outdoor module, including PCB board 101, module housing 1 fixes above PCB board 101 and covers PCB board 101 completely, and waterproof ventilative device for outdoor module still includes control assembly 103, waterproof cover body 2 and ventilative waterproof membrane 3, and control assembly 103 sets up in module housing 1 and communicates with PCB board 101 to be connected, and waterproof cover body 2 is fixed to be set up on the module housing 1 outside control assembly 103; the waterproof cover body 2 is further provided with a plurality of threading holes 206 for communication connection, and the outer walls of the threading holes 206 are wound with the breathable waterproof films 3.

The utility model relates to a waterproof and breathable device for outdoor modules, which is characterized in that a module shell 1 is fixedly arranged on a PCB 101 and is used for sealing and waterproof protection of the PCB 101; set up the water proof cover body 2 on the module casing 1 of the outside department of control assembly 103, further carry out water proof protection to control assembly 103 to set up through wires hole 206 on the bottom surface of the water proof cover body 2, the control assembly 103 communication of being convenient for is connected. The outer wall of the threading hole 206, the periphery of the signal wire 5 and the periphery of the power wire 6 are all wound with the breathable waterproof film 3, so that gas released by electronic components on the PCB 101 due to temperature change can be exchanged with outside air in time, and the ventilation function is achieved.

Preferably, as shown in fig. 2 and 3, in order to ensure the sealing connection between the waterproof cover 2 and the module housing 1, the phenomenon that the control assembly 103 is damaged due to the water vapor entering the module housing 1 from the gap between the waterproof cover 2 and the module housing 1 is avoided. A sealing ring 4 is arranged between the waterproof cover body 2 and the module shell 1. Further, in the present embodiment, the shape of the seal ring 4 is rectangular, and four corners of the rectangle are rounded; in other embodiments, the shape of the sealing ring 4 may be identical to the shape of the waterproof cover body 2.

Preferably, as shown in fig. 1, 2 and 3, to ensure the control assembly 103 works normally. The power lines 6 and the signal lines 5 penetrate through the threading holes 206, and the power lines 6 and the signal lines 5 are connected with the control component 103. The air-permeable waterproof film 3 is wound around the outer wall of the threading hole 206, the outer periphery of the power cord 6, and the outer periphery of the signal cord 5. Further, in this embodiment, the power line 6 is a DC power line 6 for providing voltage to the control module 103, the signal line 5 is for inputting a signal to the control module 103, and the control module 103 analyzes and transcodes the signal and displays the signal through electronic components on the PCB 101.

Preferably, as shown in fig. 2 and 3, the gas released from the electronic component is discharged in time in order to ensure the temperature change before and after the operation of the electronic component. A gap flow passage 7 is arranged between the power line 6 and the inner wall of the threading hole 206; or a clearance flow passage 7 is arranged between the signal wire 5 and the inner wall of the threading hole 206; or a gap flow passage 7 is arranged between the signal wire 5, the power wire 6 and the inner wall of the threading hole 206. When the temperature of the electronic component changes before and after operation, the released gas flows in the module case 1 and is released to the outside of the module case 1 through the gap flow passage 7.

Preferably, as shown in fig. 2 and 3, the waterproof and breathable device for an outdoor module further includes a filter capacitor 102, and the filter capacitor 102 is disposed on the PCB 101 and is communicated with the gap flow channel of the threading hole 206. The filter capacitor 102 filters the signal decoded by the control component 103, so that the input signal achieves a corresponding display effect.

Preferably, as shown in fig. 1, in order to ensure that the outdoor module can be repaired and replaced in time when the outdoor module fails. The module shell 1 is connected with the PCB 101 through a plurality of fasteners 104; the surface of the module case 1 is provided with a guide groove 105. In this embodiment, the fastening members 104 are fastening screws, and the number of the fastening members is twenty two, and the fastening members are uniformly distributed on the module case 1, so that the PCB board 101 and the module case 1 are hermetically connected; gaskets, sealing gaskets and the like can also be arranged on the fastening screws. Further, in this embodiment, diversion trenches 105 are formed in the surface of the module housing 1, the diversion trenches 105 are communicated in a staggered manner, and when water vapor is contaminated on the module housing 1 and flows together through the diversion trenches 105, the water vapor is prevented from being contaminated on the module housing 1 for a long time to corrode the module housing 1.

Preferably, as shown in fig. 3 and 4, in order to prevent moisture from being attached to the waterproof cover 2, the moisture is collected and enters the module case 1 through the through hole 206. The threading hole 206 is vertically arranged on the bottom surface of the lower part of the waterproof cover body 2. Further, in this embodiment, as shown in fig. 4, the waterproof cover body 2 includes an upper body 201, a middle body 202, and a lower body 203, the upper body 201, the middle body 202, and the lower body 203 are integrally connected to form a convex shape, the upper body 201 and the middle body 202 are connected by an upper inclined surface 204, and the lower body 203 and the middle body 202 are connected by a lower inclined surface 205. The waterproof cover body 2 is arranged to be convex, and water vapor stained on the waterproof cover body 2 flows along the upper inclined plane 204 and the lower inclined plane 205 under the action of gravity, so that the water vapor is prevented from corroding the waterproof cover body 2.

Further, as shown in fig. 4, the lower body 203 of the waterproof cover body 2 is vertically arranged downwards, and is shaped like a cow tail, so that the breathable waterproof film 3 can be conveniently wound; the threading hole 206 is vertically arranged on the bottom surface of the lower body 203, so that water vapor is prevented from flowing from top to bottom and entering the waterproof cover body 2 from the threading hole 206. Further, the upper body 201, the middle body 202, the lower body 203, the upper inclined surface 204, and the lower inclined surface 205 form the waterproof cover body 2 integrally. A plurality of waterproof cover body fixing holes are further formed in the waterproof cover body 2, and waterproof cover screws 207 are arranged in the waterproof cover body fixing holes and used for tightly connecting the waterproof cover body 2 to the module shell 1.

Further, in the present embodiment, a 0.4mm air-permeable waterproof film is used as the air-permeable waterproof film 3.

Further, in this embodiment, for further carrying out waterproof prevention to electronic components, operating personnel only need brush the three proofings lacquer on electronic components.

The utility model relates to a waterproof ventilative device for outdoor module, the control assembly 103 that sets up, signal line 5, power cord 6 and the electronic components on PCB board 101 between the communication connect for wait to show the signal transmission with signal line 5 input and give control assembly 103, control assembly 103 is analyzed the signal, during the transcoding back sends the electronic components of PCB board 101, each electronic components further handles the signal and shows signal display (for example: filtering capacitor 102 filters the signal). When the gas released by the electronic components after temperature change before and after working is expanded to burst the three-proofing paint, the gas flows from the air-permeable waterproof membrane 3 to the outside air through the gap flow channel 7 and exchanges with the outside air.

The utility model relates to a waterproof ventilative device for outdoor module has following beneficial effect:

1. the utility model discloses be provided with the water proof cover body 2 to 2 shapes of water proof cover body are protruding type, are infected with the steam on the water proof cover body 2 and collect the flow along the upper portion inclined plane 204 and the lower part inclined plane 205 of the water proof cover body 2 under the action of gravity, avoid steam to corrode the water proof cover body 2.

2. The utility model discloses be provided with the waterproof cover body 2, through wires hole 206 sets up on the lower part body 203 bottom surface of the waterproof cover body 2 to twine ventilative water proof membrane 3 on the lower part body 203 in the through wires hole 206 outside, can realize ventilative and waterproof function simultaneously.

3. The utility model discloses be provided with clearance runner 7, temperature variation has produced gas around electronic components work, if break through three proofings lacquer after the gas expansion, gas exchanges through clearance runner 7 through ventilative water proof membrane 3 with the outside air.

4. The utility model discloses a connect through sealing washer 4 between the water proof cover body 2 and the module casing 1, can compress the clearance between the water proof cover body 2 and the module casing 1, avoid steam to get into module casing 1 from the clearance, lead to control assembly 103 and electronic components to receive steam corrosion.

To sum up, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A waterproof ventilative device for outdoor module, includes PCB board (101), module casing (1) is fixed on PCB board (101), its characterized in that: the waterproof cover comprises a module shell (1), and is characterized by further comprising a control assembly (103), a waterproof cover body (2) and a breathable waterproof membrane (3), wherein the control assembly (103) is arranged in the module shell (1) and connected with a PCB (101), and the waterproof cover body (2) is fixedly arranged on the module shell (1) at the outer side of the control assembly (103); the waterproof cover body (2) is further provided with a plurality of threading holes (206) for communication connection, and the outer wall of each threading hole (206) is provided with a breathable waterproof film (3).

2. The waterproof and breathable arrangement for outdoor modules according to claim 1, characterized in that: and a sealing ring (4) is arranged between the waterproof cover body (2) and the module shell (1).

3. The waterproof and breathable arrangement for outdoor modules according to claim 1, characterized in that: a power line (6) and a signal line (5) penetrate through the threading holes (206), and the power line (6) and the signal line (5) are connected with the control component (103).

4. The waterproof and breathable arrangement for outdoor modules according to claim 3, characterized in that: the breathable waterproof film (3) is simultaneously wound and covered on the outer wall of the threading hole (206), the periphery of the power line (6) and the periphery of the signal line (5).

5. The waterproof and breathable arrangement for outdoor modules according to claim 3, characterized in that: and a gap flow channel (7) is arranged between the power line (6) and the inner wall of the threading hole (206).

6. The waterproof and breathable apparatus for outdoor modules according to claim 3, characterized in that: a gap flow channel (7) is arranged between the signal line (5) and the inner wall of the threading hole (206).

7. The waterproof and breathable apparatus for outdoor modules according to claim 3, characterized in that: and clearance flow passages (7) are arranged among the signal lines (5), the power lines (6) and the inner walls of the threading holes (206).

8. The waterproof and breathable arrangement for outdoor modules according to any one of claims 5 to 7, characterized in that: the PCB is characterized by further comprising a filter capacitor (102), wherein the filter capacitor (102) is arranged on the PCB (101) and is communicated with the gap flow channel (7) of the threading hole (206).

9. The waterproof and breathable arrangement for outdoor modules according to claim 1, characterized in that: the module shell (1) is connected with the PCB (101) through a plurality of fasteners (104); a diversion trench (105) is formed in the surface of the module shell (1).

10. The waterproof and breathable arrangement for outdoor modules according to claim 1, characterized in that: the waterproof cover body (2) comprises an upper body (201), a middle body (202) and a lower body (203), and convex shapes are formed among the upper body (201), the middle body (202) and the lower body (203); the threading hole (206) is vertically arranged on the bottom surface of the lower body (203).