CN109327990A - The moisture-proof regulator of water-tight equipment - Google Patents
The moisture-proof regulator of water-tight equipment Download PDFInfo
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- CN109327990A CN109327990A CN201811299669.XA CN201811299669A CN109327990A CN 109327990 A CN109327990 A CN 109327990A CN 201811299669 A CN201811299669 A CN 201811299669A CN 109327990 A CN109327990 A CN 109327990A
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- Prior art keywords
- shell
- inner cavity
- moisture
- water
- ventilated membrane
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/068—Hermetically-sealed casings having a pressure compensation device, e.g. membrane
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The present invention discloses a kind of moisture-proof regulator of water-tight equipment, including hollow inner cavity (3), inner cavity (3) side is equipped with the first shell (1) of removable connection therewith, its other side is equipped with the second shell (2) of removable connection therewith, the first ventilated membrane (4) are equipped between the inner cavity (3) and first shell (1), the second ventilated membrane (5) are equipped between inner cavity (3) and second shell (2), are equipped with air hole (11,21) on the first shell (1) and second shell (2)；Inner cavity (3) lower end is equipped with venthole (31), and the venthole (31) is communicated by hose (6) with the ventilating joint (7) for being fixed on water-tight equipment.The moisture-proof regulator of water-tight equipment of the invention, can guarantee be installed standby internal pressure it is consistent with outside, without dew condensation phenomenon generation, be easily installed.
Description
Technical field
The invention belongs to water-tight equipment damp-proof device technical field, especially a kind of pressure, humidity are kept, and are easily installed
The moisture-proof regulator of water-tight equipment.
Background technique
Water-tight equipment is used to carry out cavity sealing to above deck equipments such as antenna, high-frequency box, transmitters, to realize severe outer
Equipment moisture proof, anticorrosion under the conditions of portion.
Currently, above deck equipment anticorrosion majority takes cavity Seal Design (without moisture proof regulator).Actual conditions
It proves, there are some unreliability factors for this design, and especially to big volume device, (inside cavity space is much larger than built-in device body
Product summation), it is difficult to accomplish to seal in cavity, such as the antenna house of hot weather sealing, when being in microthermal climate, theoretically two
A extreme temperature weather, different periods temperature can differ 110 DEG C inside and outside cavity, in effective sealing, inside and outside gas pressure
It differs greatly, according to Clapyron Equation PV/T=R (constant), under the premise of constancy of volume, extreme case sealed body cavity
It can produce the positive/negative-pressure of 47Kpa ≈ 0.47kg/cm2, the ratio between extreme pressure is greater than 1.47, sealing cord joint or antenna house itself
Probably due to inside and outside pressure differs greatly and causes to fail, once airtight failure, moisture can be entered when night mercury dropped, and it is white
When it arrives, increase pressure due to solarization in antenna chamber, gas evolution, most of sodium chloride and moisture can't escape therewith
Out, cumulative in cycles, inside generates ponding or moisture film, and is attached on inner antenna mounting base and microwave device, with
The extension of time, the concentration of ponding or moisture film not only dissolved oxygen is improved, and is entered in moisture when night mercury dropped
The sodium chloride of contained band, with the increase of sodium chloride concentration in ponding or moisture film, ponding solution conductivity increases, and anode is gone in pole
Change effect enhancing, causes inside antenna mounting base and microwave device surface corrosion speed is aggravated.Along with antenna house inside is white
High temperature caused by its solarization, more accelerates corrosion rate.Therefore it is developed on big volume device and installs the wet tune of dust and moisture additional
Pressure device is necessary.By moisture proof regulator, equipment inside and outside gas can be exchanged, but external dust, humidity, rainwater
And salt fog can not enter, can effectively reduce damage that equipment (such as antenna house and sealing ring) is generated by inside and outside pressure difference and
Initial failure extends its service life, also can avoid water-tight equipment cover board, door or covers the drawbacks of hardly possible one is opened when sealing is not failed.
Moisture proof regulator is widely used, in addition to it can be applied to the above deck equipments such as antenna, high-frequency box, transmitter, sky use,
Land with and cabin in water-tight equipment can also refer to using.
The existing producer's research successful case in the country, such as some outdoor communication equipments, radar seal cavity, superior automobile
Headlight has been employed moisture proof regulator technology.Some recent companies are also proposed tandem product according to the market demand
" waterproof vent valve ", product description and material object and otherwise understanding by these companies, it is known that these products it is big
All exist O-ring seal such as Rig up error be easily damaged, the defects of the environment that extreme temperature or temperature fluctuation cannot be exposed to,
To the equipment of big volume, Air permenbility can not meet actual demand, and there are hidden danger for reliability, safety.Existing weaponry and equipment is transformed because wanting
The big threaded hole of tapping installs waterproof vent valve, difficult big, and it is poor to fit dress property.
In short, existing water-tight equipment there are the problem of include:
1, because temperature change causes internal and external pressure difference to may cause damage to device housings, sealing ring inside water-tight equipment；
2, water-tight equipment seal failure causes " cell breath " to generate moist condensation, brings internal unit to corrode, equipment can
It is reduced by property.
3, " waterproof vent valve " product sealing ring such as Rig up error currently on the market, be easily damaged, cannot be exposed to it is extreme
In temperature or the environment of temperature fluctuation, Air permenbility is small, can not meet big volume device actual demand, and reliability, safety exist
Hidden danger.
4, the transformation of existing weaponry and equipment installation moisture proof regulator is difficult big.
Summary of the invention
The purpose of the present invention is to provide a kind of moisture-proof regulator of water-tight equipment, can guarantee be installed standby internal pressure and
It is external unanimously, without dew condensation phenomenon to occur, it is easily installed.
The technical solution for realizing the aim of the invention is as follows:
A kind of moisture-proof regulator of water-tight equipment, including hollow inner cavity 3,3 side of inner cavity is equipped with removable therewith
The first shell 1 of connection, the other side are equipped with the second shell 2 of removable connection therewith, the inner cavity 3 and first shell 1 it
Between be equipped with the first ventilated membrane 4, between inner cavity 3 and second shell 2 be equipped with the second ventilated membrane 5, the first shell 1 and second shell
Air hole 11,21 is equipped on 2；3 lower end of inner cavity is equipped with venthole 31, and the venthole 31 is by hose 6 and for solid
The ventilating joint 7 being scheduled on water-tight equipment communicates.
Compared with prior art, the present invention its remarkable advantage are as follows:
1, pressure is kept, and is solved inside water-tight equipment because of the internal and external pressure difference caused by temperature change outside to equipment
Shell, sealing ring may cause the influence of damage；
2, humidity regulation is good, solves caused by water-tight equipment seal failure humidity condensation produced by " cell breath " and brings
Etching problem, improve equipment dependability.
3, be easily installed, solve " waterproof vent valve " product sealing ring such as Rig up error currently on the market be easily damaged,
It cannot be exposed in the environment of extreme temperature or temperature fluctuation, Air permenbility is small, can not meet big volume device actual demand, reliably
There is hidden danger in property, safety；Moisture proof regulator is installed convenient for existing weaponry and equipment, carries out quick transformation.
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the big Air permenbility moisture proof regulator of water-tight equipment of the present invention.Wherein, Fig. 1 a is left view
Figure, Fig. 1 b are longitudinal sectional view, and Fig. 1 c is right view.
Fig. 2 is the scheme of installation of Fig. 1 shown device.When wherein, being distributed in not ipsilateral with blow vent based on Fig. 2 a
Installation diagram, installation diagram when being distributed in ipsilateral in water-tight equipment with blow vent based on Fig. 2 b.
Fig. 3 is the operation principle schematic diagram when the temperature drops, the big Air permenbility moisture proof regulator of water-tight equipment of the present invention.
Wherein, Fig. 3 a is left view, and Fig. 3 b is longitudinal sectional view, and Fig. 3 c is right view.
When Fig. 4 is that temperature rises, the operation principle schematic diagram of the big Air permenbility moisture proof regulator of water-tight equipment of the present invention.
Wherein, Fig. 4 a is left view, and Fig. 4 b is longitudinal sectional view, and Fig. 4 c is right view.
In figure, first shell 1, second shell 2, air hole 11,21, inner cavity 3, venthole 31, the first ventilated membrane 4, second
Ventilated membrane 5,6 ventilating joint 7 of hose, the first sealing ring 81, the second sealing ring 82, third sealing ring 83, bolt 9.
Specific embodiment
The moisture-proof regulator of water-tight equipment of the present invention, for being mounted on inside water-tight equipment, to adjust inside water-tight equipment
Pressure and humidity, so that it is guaranteed that water-tight equipment interior humidity and inside and outside differential pressure will not day and night temperature variation and change.
As shown in Figure 1, the moisture-proof regulator of water-tight equipment of the present invention, including hollow inner cavity 3,3 side of inner cavity is set
Have a first shell 1 of removable connection therewith, the other side is equipped with the second shell 2 of removable connection therewith, the inner cavity 3 with
It is equipped with the first ventilated membrane 4 between first shell 1, the second ventilated membrane 5, the first shell are equipped between inner cavity 3 and second shell 2
1 and second shell 2 on be equipped with air hole 11,21；
3 lower end of inner cavity is equipped with venthole 31, and the venthole 31 is by hose 6 and for being fixed on water-tight equipment
Ventilating joint 7 communicate.
To guarantee that the cavity between the first ventilated membrane 4 and the second ventilated membrane 5 is in air-tight state, the inner cavity 3 is towards the
Between one shell, 1 one side periphery and the first ventilated membrane 4 be equipped with the first sealing ring 81, inner cavity 3 towards 2 one side periphery of second shell with
The second sealing ring 82 is equipped between second ventilated membrane 5.
For the sealed connection for guaranteeing water-tight equipment moisture-proof regulator and water-tight equipment of the present invention, on the ventilating joint 7
Equipped with for the third sealing ring 83 with water-tight equipment mounting hole edge seal.
Preferably, the cross reinforcing rib that inside cavity is divided into 4 cavitys, and 4 cavity phases are equipped in the inner cavity 3
It is intercommunicated.To guarantee the structural strength of the moisture-proof regulator of water-tight equipment of the present invention.
For convenient for assembling, safeguarding, the first shell 1, the first ventilated membrane 4, inner cavity 3, the second ventilated membrane 5, second shell 2
It is fixedly connected by the bolt 9 set on quadrangle is removable.
Fig. 2 is best installation form, that is, air inlet of the moisture-proof regulator of water-tight equipment of the present invention in lower section, gas inlet rubber tube
It is in bending below moisture proof regulator, without ponding section shape, exchanging gas passes through ventilated membrane mode inside and outside equipment
Difference can effectively play wet gas the function of check valve.Equipment sealing is when meeting the requirements, can utmostly prevent moisture by
Device external is to one-way movement inside equipment, conversely, equipment inner moisture molecule is then easier to pass through moisture proof with respect to the former
Regulator is discharged to outside.
The working principle of the moisture-proof regulator of water-tight equipment of the present invention is described in detail below.
As shown in figure 3, when moisture proof regulator such as Fig. 2 are mounted on inside equipment, when the temperature drops, internal gas pressure
Less than extraneous gas pressure, extraneous gas enters inner cavity 3 by ventilating joint 7 through walls, hose 6, venthole 31, using first
Ventilated membrane 4, the second ventilated membrane 5, first shell 1, second shell 2, upper air hole 11,21 enter inside water-tight equipment.Gas stream
During dynamic, the dust that includes in extraneous gas, rainwater, salt fog particle are because be greater than the size of ventilative membrane micropore by ventilated membrane mistake
Filter, not can enter inside equipment.When the vapor for including in extraneous gas is by the small-bore entrance of ventilating joint 7 through walls,
Speed and kinetic energy are gradually increased, and when passing through curved hose 6, due to the effect of inertia, size is larger, the biggish water of kinetic energy
Steam can strike 6 wall of hose and be attached to above, if ventilatory capacity in the short time and humidity greatly to a certain extent if will form water
Pearl.After kinetic energy and the small vapor of diameter enter inner cavity 3 by hose 6, because space becomes larger suddenly, vapor speed subtracts significantly
Weak, a part, which continues to rise, to be collided 3 top wall of inner cavity and is attached to above, not a part of to the first ventilated membrane 4, the second ventilated membrane
5 directions are mobile, and directional velocity when vapor enters inner cavity 3 and the first ventilated membrane 4,5 mounting surface of the second ventilated membrane are at parallel
State, increases vapor and the microcosmic reticular structure of ventilated membrane collides captured probability, if the first ventilated membrane 4, second
5 number of plies of ventilated membrane reaches a certain level or reticular structure aperture more hour, and the probability for colliding capture can be further increased to
The vapor overwhelming majority cannot be entered inside equipment by the first ventilated membrane 4, the second ventilated membrane 5, and other gas such as nitrogen, oxygen
Body because molecular diameter to compare diameter with vapor, eptfe film aperture many smaller, be easier to lead to
Cross the first ventilated membrane 4, the second ventilated membrane 5 enter equipment inside, to achieve the purpose that moisture proof pressure regulation.
As shown in figure 4, temperature increases, when equipment internal gas pressure is greater than external, interior section gas can be by moisture-proof
Wet regulator air hole is to moisture proof regulator internal flow.Pass through the moisture molecular velocity after air hole 11,21 at this time
Reaching maximum, kinetic energy is maximum, directional velocity and the first ventilated membrane 4 due to the effect of inertia, and when vapor enters inner cavity 3,
Second ventilated membrane, 5 mounting surface at plumbness, reduce vapor and the microcosmic reticular structure of ventilated membrane collide it is captured several
Rate, vapor are easier to enter inner cavity 3 across the first ventilated membrane 4, the second ventilated membrane 5, and water in equipment is steamed compared to the former
Gas passes through inner cavity 3, hose 6, ventilating joint 7 in company with other gases together and is discharged to device external.
In conclusion moisture proof regulator is mounted on inside equipment, and pass through hose, connector and the big gas phase of device external
It is logical, when equipment sealing is met the requirements, it can utmostly prevent moisture from device external to equipment inside one-way movement, conversely,
Equipment inner moisture molecule is then easier to be discharged to outside by moisture proof regulator with respect to the former.By it is daily round the clock
Difference variation, for water-tight equipment by moisture proof regulator, internal gas has carried out inlet and outlet process, in whole process,
Equipment interior humidity does not increase, and equipment inside and outside pressure difference reduce, balanced, and effectively reduces equipment such as antenna house
And damage and initial failure that sealing ring is generated by inside and outside pressure difference, the service life is extended, while also can avoid water-tight equipment
Cover board, door or cover the drawbacks of one opening of hardly possible, have achieved the purpose that moisture proof pressure regulation when external pressure is greater than internal pressure.
Claims (5)
1. a kind of moisture-proof regulator of water-tight equipment, it is characterised in that:
Including hollow inner cavity (3), inner cavity (3) side is equipped with the first shell (1) of removable connection therewith, the other side
Second shell (2) equipped with removable connection therewith is equipped with the first ventilated membrane between the inner cavity (3) and first shell (1)
(4), the second ventilated membrane (5) are equipped between inner cavity (3) and second shell (2), on the first shell (1) and second shell (2)
It is equipped with air hole (11,21)；
Inner cavity (3) lower end is equipped with venthole (31), and the venthole (31) is set by hose (6) with for being fixed on sealing
Standby upper ventilating joint (7) communicates.
2. moisture-proof regulator according to claim 1, it is characterised in that:
The inner cavity (3) towards between (1) one side periphery of first shell and the first ventilated membrane (4) be equipped with the first sealing ring
(81), inner cavity (3) are equipped with the second sealing ring (82) towards between (2) one side periphery of second shell and the second ventilated membrane (5).
3. moisture-proof regulator according to claim 1, it is characterised in that:
The ventilating joint (7) is equipped with for the third sealing ring (83) with water-tight equipment mounting hole edge seal.
4. moisture-proof regulator according to claim 1, it is characterised in that:
The cross reinforcing rib that inside cavity is divided into 4 cavitys is equipped in the inner cavity (3), and 4 cavitys are interconnected.
5. moisture-proof regulator according to claim 1, it is characterised in that:
The first shell (1), the first ventilated membrane (4), inner cavity (3), the second ventilated membrane (5), second shell (2) are by being set to quadrangle
Bolt (9) removable be fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299669.XA CN109327990A (en) | 2018-11-02 | 2018-11-02 | The moisture-proof regulator of water-tight equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299669.XA CN109327990A (en) | 2018-11-02 | 2018-11-02 | The moisture-proof regulator of water-tight equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109327990A true CN109327990A (en) | 2019-02-12 |
Family
ID=65260645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299669.XA Pending CN109327990A (en) | 2018-11-02 | 2018-11-02 | The moisture-proof regulator of water-tight equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109327990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290663A (en) * | 2019-06-20 | 2019-09-27 | 深圳市洛丁光电有限公司 | A kind of water proof type communication electric component box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9595705B1 (en) * | 2016-03-03 | 2017-03-14 | Faraday&Future Inc. | Electric vehicle battery |
| CN108207098A (en) * | 2017-12-30 | 2018-06-26 | 中国船舶重工集团公司第七二三研究所 | Moisture proof regulator |
| CN207558897U (en) * | 2017-11-29 | 2018-06-29 | 长城汽车股份有限公司 | Battery pack and with its vehicle |
-
2018
- 2018-11-02 CN CN201811299669.XA patent/CN109327990A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9595705B1 (en) * | 2016-03-03 | 2017-03-14 | Faraday&Future Inc. | Electric vehicle battery |
| CN207558897U (en) * | 2017-11-29 | 2018-06-29 | 长城汽车股份有限公司 | Battery pack and with its vehicle |
| CN108207098A (en) * | 2017-12-30 | 2018-06-26 | 中国船舶重工集团公司第七二三研究所 | Moisture proof regulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290663A (en) * | 2019-06-20 | 2019-09-27 | 深圳市洛丁光电有限公司 | A kind of water proof type communication electric component box |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |
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| RJ01 | Rejection of invention patent application after publication |