CN217153148U

CN217153148U - Breather valve and electronic equipment

Info

Publication number: CN217153148U
Application number: CN202220277100.9U
Authority: CN
Inventors: 汪水
Original assignee: Huizhou Voir Science & Technology Co ltd
Current assignee: Huizhou Voir Science & Technology Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-08-09
Anticipated expiration: 2032-02-10

Abstract

The utility model discloses a breather valve and electronic equipment. The main body comprises a connecting part and a ventilating part, and the main body is provided with a ventilating hole which penetrates through the connecting part and the ventilating part; the pressure control piece is provided with a mounting hole, an air inlet part and an air outlet part, the mounting hole is communicated with the air vent, the connecting part is inserted in the mounting hole, the air inlet part comprises a first valve clack, and the first valve clack is used for closing or opening the mounting hole; the air outlet part is provided with an air outlet and a second valve flap, the second valve flap is arranged on the inner surface of the air outlet, and the second valve flap is used for opening or closing the air outlet so that air in the sealed cavity flows out of the outside. When seal chamber and external atmospheric pressure are the same, mounting hole and venthole normally seal, and the probability that condensation phenomenon appears is reduced in the entering of effective separation steam, and when the atmospheric pressure of ventilative valve sealed end is different with external atmospheric pressure, open venthole passageway or mounting hole passageway according to the atmospheric pressure difference, balanced seal chamber and external inside and outside pressure difference.

Description

Breather valve and electronic equipment

Technical Field

The utility model belongs to the technical field of the valving technique and specifically relates to a breather valve and electronic equipment are related to.

Background

Traditional breather valve can only prevent the erosion of liquid water, can't prevent inside steam gets into the cavity, when gas temperature rose in the seal box, because thermal inertia, the internal surface temperature of seal box is less than gas temperature, when the inside steam of entering into the cavity meets the seal box internal surface that is less than the dew point, steam will condense into the dew and drip, the condensation phenomenon appears, the appearance of condensation phenomenon can increase the risk that inside electronic components takes place the short circuit, consequently, it is necessary to study the solution to this problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a ventilation valve can reduce the probability that condensation phenomenon appears.

The utility model discloses still provide an electronic equipment who has above-mentioned breather valve.

According to the utility model discloses a ventilative valve of first aspect embodiment, include:

the main body comprises a connecting part and a ventilation part, the connecting part is used for connecting a sealed box body, the main body is provided with a ventilation hole, the ventilation hole penetrates through the connecting part and the ventilation part, and the ventilation hole is used for communicating the outside and a sealed cavity of the sealed box body;

the pressure control piece is provided with a mounting hole, an air inlet part and an air outlet part, the mounting hole is communicated with the air vent, the connecting part is inserted into the mounting hole, the air inlet part comprises a first valve clack, and the first valve clack is used for closing or opening the mounting hole; the air outlet part is provided with an air outlet and at least one second valve flap, the air outlet is communicated with the air holes, each second valve flap is arranged on the inner surface of the air outlet, and the second valve flaps are used for opening or closing the air outlet.

According to the utility model discloses ventilative valve has following beneficial effect at least: when the air pressure of the sealed cavity is the same as that of the outside, the mounting hole and the air outlet are normally closed, so that the water vapor is effectively prevented from entering, the probability of condensation is reduced, the service life of components in the sealed cavity is prolonged, and the safety of a working environment is improved; when the air pressure of the sealed cavity is different from the air pressure of the outside, the air outlet channel or the mounting hole channel is opened according to the air pressure difference, and the air enters or flows out of the sealed cavity to balance the internal and external pressure difference between the sealed cavity and the outside.

According to some embodiments of the utility model, the breather valve still includes waterproof ventilated membrane, waterproof ventilated membrane set up in the ventilation part is kept away from the one end of connecting portion, waterproof ventilated membrane covers the bleeder vent.

According to some embodiments of the utility model, the breather valve still includes the gland, the gland is provided with the recess of ventilating, the recess of ventilating with the bleeder vent sets up relatively, the gland with ventilative portion fixed connection.

According to some embodiments of the invention, the ventilation part is further provided with a second inclined plane for enlarging the passage of the gas into the ventilation groove.

The ventilation part is provided with a clamping boss, the gland is provided with a clamping groove, and the clamping boss is clamped in the clamping groove.

According to some embodiments of the present invention, the material of the pressure control member is flame-retardant silicone or fluororubber.

According to some embodiments of the utility model, the accuse casting die still includes the sealing, the sealing is used for sealing connecting portion with the clearance between the seal box body.

According to some embodiments of the utility model, connecting portion are provided with the pothook, the pothook be used for with seal chamber's inner wall supports to hold spacingly to realize the breather valve with the joint of object is fixed.

According to some embodiments of the invention, the connecting portion is provided with a thread, the thread be used for with seal chamber's shell carries out threaded connection.

According to the utility model discloses an electronic equipment of second aspect embodiment, include the ventilative valve of first aspect embodiment of the utility model.

According to the utility model discloses electronic equipment has following beneficial effect at least: through using the utility model discloses the breather valve of first aspect embodiment can effectively obstruct the entering of steam, reduces the probability that condensation phenomenon appears, and when the atmospheric pressure of breather valve sealed end is different with external atmospheric pressure, open venthole passageway or mounting hole passageway according to the atmospheric pressure difference, gaseous entering or outflow seal chamber, balanced seal chamber and external inside and outside pressure difference.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention will be further described with reference to the following drawings and examples, in which:

fig. 1 is an exploded schematic view of a vent valve according to an embodiment of the first aspect of the present invention;

FIG. 2 is a top view of the control compression element of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an oblique view of the control compression element of FIG. 1;

FIG. 5 is an oblique view of the pressure control member of FIG. 4 from another perspective;

FIG. 6 is a cross-sectional view of the breather valve of FIG. 1 after assembly;

fig. 7 is a schematic view showing the air permeation valve of fig. 1 mounted to an electronic device.

Reference numerals:

a breather valve 100;

the pressure control part 200, the mounting hole 210, the air inlet part 220, the first inclined plane 221, the first valve flap 222, the deformation hole 223, the air outlet part 230, the air outlet hole 231, the second valve flap 232 and the sealing part 240;

the main body 300, the connecting part 310, the hook 311, the air permeable part 320, the second inclined plane 321, the clamping boss 322 and the air holes 323;

a waterproof breathable film 400;

the gland 500, the clamping groove 510 and the ventilation groove 520;

a sealed box body 600, a connecting hole 610 and a sealed cavity 620.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means is one or more, a plurality of means is two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The ventilation valve 100 and the electronic device according to the embodiment of the present invention are described below with reference to the drawings.

Referring to fig. 1 to 5, to a ventilation valve 100 according to an embodiment of the first aspect of the present invention, includes a main body 300 and a control member 200. The main body 300 includes a connection part 310 and a ventilation part 320, the connection part 310 is used for connecting the sealed box body 600, the main body 300 is provided with a ventilation hole 323, the ventilation hole 323 penetrates through the connection part 310 and the ventilation part 320, and the ventilation hole 323 is used for communicating the outside and the sealed cavity 620 of the sealed box body 600. The control and pressure member 200 is provided with a mounting hole 210, an air inlet part 220 and an air outlet part 230, the mounting hole 210 is communicated with the air vent 323, the connecting part 310 is inserted into the mounting hole 210, the air inlet part 220 comprises a first valve flap 222, and the first valve flap 222 is used for closing or opening the mounting hole 210. The air outlet part 230 is provided with an air outlet hole 231 and at least one second flap 232, the air outlet hole 231 is communicated with the air vents 323, each second flap 232 is provided on the inner surface of the air outlet hole 231, and the second flaps 232 are used for opening or closing the air outlet hole 231.

Specifically, referring to fig. 3 and 4, the second valve flap 232 is an elastic structure extending obliquely from the hole wall on one side of the air outlet 231 to the opposite hole wall, an included angle formed by the second valve flap 232 and the lower end surface of the pressure control member 200 is greater than 0, the extending end of the second valve flap 232 abuts against the opposite hole wall on the other end to seal the air outlet 231, and since the included angle formed by the second valve flap 232 and the lower end surface of the pressure control member 200 is greater than 0, water vapor can only flow from the lower end to the upper end of the pressure control member 200, but cannot flow from the upper end to the lower end. The number of second valve flaps 232 may be one, with a single second valve flap 232 directly abutting the aperture wall; or two second valve flaps 232 can be oppositely abutted to close the air outlet 231 as shown in the drawing.

The first valve flap 222 may be similar to the second valve flap 232, or as shown in the drawings, the first valve flap 222 is formed by providing a deformation hole 223 and a first inclined surface 221, the first inclined surface 221 is provided at an opening of the mounting hole 210 facing one end of the gas permeable portion 320, and the deformation hole 223 is used for deforming the first valve flap 222 after being stressed, so as to allow the gas to flow into the sealed cavity 620.

Under normal operating mode, seal chamber 620 is the same with external atmospheric pressure promptly, and mounting hole 210 and venthole 231 normally seal to the entering of effective separation steam provides dry operational environment for the components and parts in seal chamber 620, is favorable to prolonging the life of components and parts from this. When the air pressure of the sealed cavity 620 is greater than the external air pressure, the second valve flap 232 deforms under the pressure of the air pressure, the air outlet 231 channel is opened, the air in the cavity flows out, and the pressure is relieved to balance the pressure difference between the sealed cavity 620 and the external air pressure. When the air pressure of the sealed cavity 620 is lower than the external air pressure, the first inclined surface 221 is affected by the external air pressure, the first valve flap 222 deforms towards the deformation hole 223, the channel of the mounting hole 210 is opened, external air enters the sealed cavity 620, and the internal and external pressure difference between the sealed cavity 620 and the outside is balanced.

Referring to fig. 1 and 4, according to some embodiments of the present invention, the vent valve 100 further includes a waterproof vent membrane 400, the waterproof vent membrane 400 is disposed at one end of the vent portion 320 away from the connecting portion 310, and the vent hole 323 is covered by the waterproof vent membrane 400. Specifically, the waterproof breathable film 400 can be an existing waterproof breathable film 400 material such as e-PTFE (expanded tetrafluoroethylene), and the waterproof breathable film 400 covers the breathable holes 323, so that the waterproofness of the breathable valve 100 can be increased, the breathable holes 323 are further sealed, and liquid is prevented from flowing into the sealed cavity 620 when the second valve flap 232 or the first valve flap 222 deforms, or the liquid is prevented from flowing into the sealed cavity 620 along a gap between the pressure control member 200 and the main body 300.

Referring to fig. 1 and 4, according to some embodiments of the present invention, the ventilation valve 100 further includes a gland 500, the gland 500 is provided with a ventilation groove 520, the ventilation groove 520 is disposed opposite to the ventilation holes 323, and the gland 500 is fixedly connected to the ventilation part 320.

Specifically, the gland 500 and the ventilation portion 320 can be fixedly connected through fasteners such as screws and bolts, and can also be integrally welded in an ultrasonic mode, and the ventilation groove 520 is a reserved gas flow channel during pressure balance. Through setting up gland 500, can further increase the waterproof nature and the leakproofness of breather valve 100, reduce the direct probability that sprays into bleeder vent 323 of liquid, impurity such as dust in the interception part air reduces the inside dirty possibility of blockking up of breather valve 100, and simultaneously, gland 500 has increased the volume of breather valve 100 in other words, and gland 500 is easier staff's holding and application of force for regular surface, makes things convenient for staff's installation breather valve 100.

Referring to fig. 4, according to some embodiments of the present invention, the gas permeable part 320 is further provided with a second inclined surface 321, the second inclined surface 321 being used to enlarge the passage of the gas into the vent groove 520. The second inclined plane 321 enlarges the passage for the external air to enter the ventilation groove 520, enhances the air fluidity when the pressure control element 200 performs pressure balance, and ensures the efficiency of pressure balance.

Referring to fig. 4, according to some embodiments of the present invention, the air permeable portion 320 is provided with a clamping boss 322, the gland 500 is provided with a clamping groove 510, and the clamping boss 322 is clamped in the clamping groove 510. Through the setting of joint boss 322 and joint recess 510, realized that the joint between gland 500 and the gas permeable part 320 is fixed, the fixed mode of joint does benefit to rapid Assembly, improves the efficiency of manufacturing.

According to some embodiments of the present invention, the material of the pressure control member 200 is flame-retardant silicone or fluororubber.

When the vent valve 100 is used in a high-temperature environment, the flame-retardant silica gel can be used as a material of the pressure control member 200, so that the ignition point and the stability of the pressure control member 200 are improved, and the working performance of the pressure control member 200 in the high-temperature environment is ensured. When the vent valve 100 needs to be used in a multi-oil environment such as industrial equipment, the fluororubber has better oil resistance, the sealing performance of the pressure control piece 200 can be ensured, and oil can be prevented from flowing into the sealing cavity 620. The material of the pressure control member 200 can be ethylene propylene diene monomer, nitrile rubber or hydrogenated butadiene acrylonitrile rubber, etc. according to different environmental requirements.

Referring to fig. 6 and 7, according to some embodiments of the present invention, the pressure control member 200 further includes a sealing part 240, and the sealing part 240 is used to seal a gap between the connection part 310 and the seal case 600.

Specifically, the sealing portion 240 is an elastic sealing ring, after the connecting portion 310 is inserted into the mounting hole 210 of the pressure control member 200, one end of the sealing portion 240 abuts against the connecting portion 310 for sealing, and the other end of the sealing portion 240 abuts against the hole wall at the connecting hole 610 for sealing, so that water vapor is prevented from flowing into the sealing cavity 620 through the gap between the connecting portion 310 and the sealing box 600.

Referring to fig. 1, 4 and 5, according to some embodiments of the present invention, the connecting portion 310 is provided with a hook 311, and the hook 311 is used for supporting the inner wall of the sealing cavity 620 for limiting, so as to fix the vent valve 100 to an object. Specifically, the connecting portion 310 has a certain elasticity, when the connecting portion 310 is inserted into the connecting hole 610 of the sealed cavity 620, the connecting portion 310 abuts against the hole wall of the connecting hole 610 to contract, so that the hook 311 slides into the sealed cavity 620, and after the hook 311 enters the sealed cavity 620, the hook 311 abuts against the inner wall of the hole of the connecting hole 610 to limit the movement of the ventilation valve 100 away from the connecting hole 610. The mode of clamping and installing the ventilation valve 100 through the clamping hook 311 is convenient and fast, and the installation operation of the ventilation valve 100 is easy to be carried out by a worker.

According to some embodiments of the present invention, the connection portion 310 is provided with a thread for being screwed with the housing of the sealed cavity 620. Specifically, the threaded connection of the ventilation valve 100 can be realized by providing an external thread on the connection portion 310 and an internal thread on the housing connection hole 610 of the seal cavity 620; the connection portion 310 may be provided with an internal thread, the housing of the seal chamber 620 may be provided with a boss for connection, and the boss may be provided with an external thread, thereby realizing the threaded connection of the ventilation valve 100. The threaded connection mode is convenient to disassemble, the connection performance is reliable, and replacement and maintenance of the vent valve 100 by workers are facilitated.

According to an embodiment of the second aspect of the present invention, the ventilation valve 100 includes the first aspect of the present invention. Specifically, electronic equipment can be for need carry out sealed electronic equipment such as battery package, LED lamps and lanterns, outdoor communication equipment, through using the utility model discloses the breather valve 100 of first aspect embodiment, the entering of can effective separation steam reduces the probability that condensation phenomenon appears, and the atmospheric pressure of the sealed end of breather valve 100 is different with external atmospheric pressure, opens venthole 231 passageway or mounting hole 210 passageway according to the atmospheric pressure difference, and gas entering or outflow seal chamber 620, balanced seal chamber 620 and external inside and outside pressure difference.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art. Furthermore, the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

Claims

1. A vent valve, comprising:

2. The vent valve of claim 1, further comprising a waterproof vent membrane disposed at an end of the vent portion distal from the connecting portion, the waterproof vent membrane covering the vent.

3. The vent valve of claim 1, further comprising a gland having a vent groove disposed opposite the vent, the gland being fixedly connected to the vent.

4. The vent valve of claim 3, wherein the vent portion is further provided with a second ramp for enlarging the passage of gas into the vent groove.

5. The vent valve according to claim 3, wherein the vent part is provided with a clamping boss, the gland is provided with a clamping groove, and the clamping boss is clamped in the clamping groove.

6. The vent valve of claim 1, wherein the material of the pressure control member is fire retardant silicone or viton.

7. The vent valve of claim 1, wherein the control and compression element further comprises a sealing portion for sealing a gap between the connection portion and the seal housing.

8. The vent valve according to claim 1, wherein the connecting portion is provided with a hook, and the hook is used for abutting against and limiting the inner wall of the sealed box body so as to realize clamping fixation of the vent valve and the sealed box body.

9. The vent valve according to claim 1, wherein the connecting portion is provided with a thread for screwing with the sealed housing.

10. Electronic device, characterized in that it comprises a gas-permeable valve according to any one of claims 1 to 9.