CN113260180B

CN113260180B - Underwater sealed cabin and underwater equipment with electronic element

Info

Publication number: CN113260180B
Application number: CN202110731051.1A
Authority: CN
Inventors: 魏建仓; 李忠瑞; 田胜存; 王震; 仝庆
Original assignee: Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Current assignee: Shenzhilan Tianjin Underwater Intelligent Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-10-01
Anticipated expiration: 2041-06-30
Also published as: CN113260180A

Abstract

The invention relates to an underwater sealed cabin and underwater equipment with electronic elements. The underwater sealed cabin comprises a shell, a sealed space is arranged in the shell, a vent hole for communicating the outside with the sealed space is arranged on the shell, a first one-way valve is arranged at the vent hole, and the first one-way valve is opened when the air pressure in the sealed space is greater than a set value; one end of the first one-way valve connected with the sealed space is provided with a waterproof ventilation valve. Above-mentioned sealed cabin under water has the air vent on the casing, is equipped with waterproof breather valve in air vent department, and is equipped with first check valve in waterproof breather valve's the outside, and this first check valve can protect waterproof breather valve when outside water pressure is great, avoids waterproof breather valve to damage because of too big water pressure. Meanwhile, the pressure in the sealed space in the shell is low, when negative pressure is formed, the waterproof vent valve can be protected by the first one-way valve, the waterproof vent valve is prevented from being damaged by external water pressure, and the sealed space in the underwater sealed cabin can be maintained and is prevented from being entered by external water.

Description

Underwater sealed cabin and underwater equipment with electronic element

Technical Field

The invention relates to the technical field of sealing in an underwater environment, in particular to an underwater sealed cabin and underwater equipment with electronic elements.

Background

Electronic components are easily damaged when they meet water, and therefore, underwater equipment having electronic components generally requires high underwater sealing performance so that the electronic components inside the equipment can be protected from damage.

In the prior art, a sealed cabin is generally adopted to seal the electronic components. The sealed cabin comprises a shell and a cover body, wherein the shell and the cover body enclose a containing space inside for containing electronic components; the sealing rings are arranged on the opposite end faces of the shell and the cover body and are in sealing connection, and the larger the compression amount of the sealing rings is, the better the sealing performance between the shell and the cover body is. And when the environment under water, the sealing washer receives the effect of water pressure, can produce great compressive capacity to can have good sealing performance between messenger's casing and the lid.

However, the above-mentioned sealed capsule body also has its problems in practical use: the electronic component generally generates a large amount of heat during operation, and this heat causes the gas in the accommodating space between the housing and the cover to heat up and expand, so that the gas pressure in the accommodating space is increased, which is not favorable for the sealing cabin to maintain good sealing performance.

In order to solve the above technical problems, the technical solution adopted in the prior art is: set up the air vent on casing or lid to go out to set up waterproof ventilated membrane at the air vent, when atmospheric pressure in accommodation space was too high, the gas in the accommodation space can see through waterproof ventilated membrane and discharge to the external world, and waterproof ventilated membrane also can block water outside accommodation space simultaneously.

However, such a solution also has problems in that: the pressure resistance of the waterproof breathable film is relatively limited, when the sealed cabin body is in a deep underwater environment, the waterproof breathable film cannot ensure good sealing performance, and water leakage into the accommodating space is caused due to easy damage; meanwhile, when the air temperature in the accommodating space drops, negative pressure is formed in the accommodating space, the maintenance of the sealing performance of the waterproof breathable film is not facilitated under the condition, the damage probability of the waterproof sealing film can be increased, and the probability of water leakage to the accommodating space is increased.

Disclosure of Invention

The invention provides an underwater sealed cabin and underwater equipment with electronic elements, and aims to solve the technical problem that water leakage is easy to occur in the underwater sealed cabin due to the fact that the pressure resistance of a waterproof breathable film is limited and the air pressure in a containing space is low in the prior art.

The invention provides an underwater sealed cabin which comprises a shell, wherein a sealed space is formed in the shell, a vent hole for communicating the outside with the sealed space is formed in the shell, a first one-way valve is arranged at the vent hole, and the first one-way valve is opened when the air pressure in the sealed space is greater than a set value; and a waterproof vent valve is arranged at one end of the first one-way valve, which is connected with the sealed space.

The first one-way valve comprises a fixed piece, a cylindrical movable piece and an elastic piece; the fixing piece and the shell are fixedly connected at the vent hole, and the fixing piece is provided with a through hole along the direction of the vent hole; the cylindrical moving part is sleeved on the fixing part and is in sliding connection with the vent hole; the elastic piece is connected between the fixed piece and the movable piece.

The waterproof ventilation valve comprises an annular fixing piece, a sealing piece and a waterproof ventilation film; the annular fixing piece is fixedly arranged at the vent hole; the sealing element is arranged between the fixed element and the shell; the waterproof breathable film is embedded at the annular hole of the annular fixing piece.

The air source is used for releasing air into the sealed space when the air pressure in the sealed space is lower than a set value.

The air pressure in the sealed space is lower than a set value, and the second one-way valve is opened; the gas source is arranged in the sealing subspace and releases gas under the condition that the second one-way valve is opened.

The air pressure sensor is arranged in the sealed space and used for detecting the air pressure in the sealed space and sending a signal for releasing air into the sealed space to the air source when the air pressure in the sealed space is lower than a set value.

Wherein the gas source is a container storing compressed gas; alternatively, the gas source is a gas generating device capable of generating gas through a chemical reaction.

Wherein the container storing the compressed gas has a gas outlet provided with an opening and closing mechanism for opening and closing the gas outlet; or the container storing the compressed gas is provided with a gas outlet, a sealing mechanism is arranged at the gas outlet, an unsealing mechanism is arranged in the underwater sealed cabin, and the unsealing mechanism is used for destroying the sealing mechanism at one time.

The gas generating device stores a substance for generating gas through chemical reaction, and the gas generating device can react all the stored chemical substances at one time to generate gas or quantitatively output part or all of the substances for generating the chemical reaction of the gas.

The invention provides underwater equipment with electronic components, which comprises the underwater sealed cabin.

Compared with the prior art, the underwater sealed cabin and the underwater equipment with the electronic element provided by the embodiment of the invention have the following advantages:

according to the underwater sealed cabin provided by the embodiment of the invention, the shell is provided with the vent hole, the waterproof vent valve is arranged at the vent hole, the first one-way valve is arranged on the outer side of the waterproof vent valve, and the waterproof vent valve can be protected when the external water pressure is high, so that the waterproof vent valve is prevented from being damaged due to excessive water pressure. Meanwhile, the pressure in the sealed space in the shell is lower, when negative pressure is formed, the first one-way valve can also protect the waterproof vent valve, the influence of external water pressure on the waterproof vent valve is avoided, the damage of the waterproof vent valve due to external water pressure is avoided, and the sealed space in the underwater sealed cabin can be maintained and is not accessed by external water.

The underwater equipment with the electronic element provided by the embodiment of the invention can avoid the influence of external water pressure on the waterproof vent valve when the external water pressure is high and the pressure in the sealed space is low to form negative pressure, and avoid the damage of the waterproof vent valve due to the external water pressure, so that the sealed space in the underwater sealed cabin can be maintained and is not entered by external water, and good and reliable protection is provided for the electronic element.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic side view of an underwater sealed cabin provided in embodiment 1 of the present invention;

FIG. 2 is a schematic view of the underwater sealed cabin shown in FIG. 1 in a top view;

fig. 3 is a cross-sectional view of the underwater sealed cabin shown in fig. 1 taken along the direction a-a.

In the figure:

10-a housing; 11-a first one-way valve; 12-waterproof vent valve; 13-a gas source; 14-an unsealing mechanism;

100-an upper shell; 101-a lower housing; 102-a vent; 103-an inner housing;

1030-a vent hole; 1031-second one-way valve;

10310-fixing member; 10311-cylindrical moving part; 10312-elastic member;

110-a fixture; 111-cylindrical moving parts; 112-a resilient member;

120-a ring fixture; 121-a seal; 122-waterproof breathable film;

130-a sealing film;

s-sealing the space; s1-sealing the subspace.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The invention provides an underwater sealed cabin which comprises a shell, wherein a sealed space is formed in the shell, a vent hole for communicating the outside with the sealed space is formed in the shell, a first one-way valve is arranged at the vent hole, and the first one-way valve is opened when the air pressure in the sealed space is greater than a set value; one end of the first one-way valve connected with the sealed space is provided with a waterproof ventilation valve.

According to the underwater sealed cabin provided by the invention, the shell is provided with the vent hole, the waterproof vent valve is arranged at the vent hole, the first one-way valve is arranged on the outer side of the waterproof vent valve, and the waterproof vent valve can be protected when the external water pressure is high, so that the waterproof vent valve is prevented from being damaged due to excessive water pressure. Meanwhile, the pressure in the sealed space in the shell is lower, when negative pressure is formed, the first one-way valve can also protect the waterproof vent valve, the influence of external water pressure on the waterproof vent valve is avoided, the damage of the waterproof vent valve due to external water pressure is avoided, and the sealed space in the underwater sealed cabin can be maintained and is not accessed by external water.

The invention also provides underwater equipment with electronic components, which comprises the underwater sealed cabin.

The underwater equipment with the electronic element provided by the invention can avoid the influence of external water pressure on the waterproof vent valve when the external water pressure is high and the pressure in the sealed space is low to form negative pressure, and avoid the damage of the waterproof vent valve due to the external water pressure, so that the sealed space in the underwater sealed cabin can be maintained and is not entered by external water, and good and reliable protection is provided for the electronic element.

Embodiments of the underwater sealed cabin and the underwater equipment with electronic components provided by the invention are described below with reference to the accompanying drawings.

Example 1 of an Underwater sealed cabin

FIG. 1 is a schematic side view of an underwater sealed cabin provided in embodiment 1 of the present invention; FIG. 2 is a schematic view of the underwater sealed cabin shown in FIG. 1 in a top view; fig. 3 is a cross-sectional view of the underwater sealed cabin shown in fig. 1 taken along the direction a-a. Referring to fig. 1 to 3, in the present embodiment, the underwater sealed cabin includes a housing 10, the housing 10 includes an upper housing 100 and a lower housing 101, the upper housing 100 covers the lower housing 101, and a sealed space S is formed between the upper housing 100 and the lower housing 101, and the sealed space S can be used for storing and accommodating some articles, such as electronic components, which cannot be contacted with water.

The casing 10 is provided with a vent hole 102 for communicating the outside with the sealed space S, the vent hole 102 is provided with a first check valve 11, and the first check valve 11 is opened when the air pressure in the sealed space S is greater than a set value. One end of the first one-way valve 11 connected with the sealed space S is provided with a waterproof ventilation valve 12. The set value can be set as required. Generally, a value greater than the set value indicates that the air pressure in the sealed space S is relatively large, and a value less than the set value indicates that the air pressure in the sealed space S is tolerable without exceeding the limit.

As for the underwater sealed cabin in the embodiment, a first check valve 11 and a waterproof vent valve 12 are respectively arranged at the vent hole 102; the first one-way valve 11 is arranged outside, namely faces the outside, and is contacted with the outside water environment when the underwater sealed cabin is placed underwater; and the waterproof ventilation valve 12 is arranged in the sealed space S, namely faces the sealed space S, and is separated from the external water environment by the first one-way valve 11 when the underwater sealed cabin is placed underwater.

When the air pressure in the sealed space S is large, the air in the sealed space S can reach the first check valve 11 through the waterproof vent valve 12 from the vent hole 102, and when the air pressure in the sealed space S is greater than a set value, that is, when the air pressure in the sealed space S is large, the first check valve 11 is opened, and the air reaching the first check valve 11 can flow out to the outside through the first check valve 11.

When the underwater sealed cabin is arranged at a deeper depth underwater and the water pressure is high, the first check valve 11 separating the waterproof vent valve 12 from the external water environment can prevent the external water pressure from impacting the waterproof vent valve 12, so that the waterproof vent valve 12 can normally work when the water pressure is high, the sealed space S can be maintained, and no external water enters the sealed space S.

When the air pressure in the underwater sealed cabin is low, for example, because the electronic components contained in the sealed space S generate a large amount of heat during operation, the air temperature in the sealed space S is increased, which results in the increase of the air pressure in the sealed space S, and part of the air is exhausted outwards through the air vent 102; when the electronic component stops operating, the temperature in the sealed space S is reduced and returns to normal, and since a part of the gas is discharged, the pressure in the sealed space S is reduced, and a negative pressure may be formed. In this case, the first check valve 11 can protect the waterproof vent valve 12 from being damaged by external water pressure due to a reduction in air pressure or negative pressure in the sealed space S, thereby ensuring that no external water flows into the sealed space S and maintaining the sealed space S.

Specifically, the first check valve 11 includes a fixed member 110, a cylindrical movable member 111, and an elastic member 112. The fixing member 110 is fixedly connected to the housing 10 at the vent hole 102, and the fixing member 110 has a through hole along the direction of the vent hole 102. The cylindrical moving part 111 is sleeved on the fixing part 110 and is connected with the vent hole 102 in a sliding manner. The elastic member 112 is connected between the fixed member 110 and the cylindrical movable member 111. Wherein the elastic member 112 is a spring.

In particular, the waterproof vent valve 12 comprises an annular fixture 120, a sealing member 121 and a waterproof vent membrane 122. The ring-shaped fixing member 120 is fixedly installed at the vent hole 102. The seal 121 is installed between the ring fixture 120 and the housing 10. The waterproof breathable film 122 is embedded in the annular hole of the annular fixing member 120.

In addition, the present invention can be implemented by simply changing the embodiment 1 as an alternative embodiment to the embodiment 1. In alternative embodiment of embodiment 1, the first check valve 11 may be in other various structures, as long as the first check valve 11 can be opened when the air pressure in the sealed space S is higher than the set value, and the air in the sealed space S is discharged to the outside through the vent hole 102.

Example 2 of an Underwater sealed cabin

In this embodiment, unlike the above embodiment 1, a gas source 13 is provided in the sealed space S, and the gas source 13 is configured to release gas into the sealed space S when the gas pressure in the sealed space S is lower than a set value. The set value may be set as required, and specifically may be set to a value substantially equivalent to atmospheric pressure. Generally, a value smaller than the set value indicates that the air pressure in the sealed space S is small and has a large difference from the normal atmospheric pressure outside.

In the above embodiment 1, when the air pressure in the sealed space S is low, or negative pressure, although the first check valve 11 can protect the waterproof breather valve 12 in the underwater environment, the waterproof breather valve can be maintained to operate normally without being damaged, so that the sealed space S can be maintained. However, when the underwater sealed cabin is taken out from the underwater environment and needs to be opened, it is difficult to open the upper casing 100 and the lower casing 101 due to the low air pressure or even negative pressure in the sealed space S, and if the underwater sealed cabin is opened violently, the related articles may be damaged.

In this embodiment, if the air pressure in the sealed space S is lower than the set value, the air source 13 in the sealed space S releases air into the sealed space S, so as to increase the air pressure in the sealed space S. Therefore, the difference between the air pressure in the sealed space S and the air pressure outside can be reduced, so that the air pressure in the sealed space S is basically consistent with the air pressure outside, and under the condition, the internal and external pressure difference of the sealed space S can not bring great influence on the opening of the upper shell 100 and the lower shell 101, thereby facilitating the opening of the underwater sealed cabin.

Specifically, a sealed sub-space S1 is provided in the sealed space S, and the sealed sub-space S1 is enclosed by the inner case 103 provided in the case 10, which is separated from other spaces of the sealed space S. A vent hole 1030 is provided between the sealed subspace S1 and the sealed subspace S, that is, the inner case 103 is provided with the vent hole 1030 communicating the sealed subspace S and the sealed subspace S1. A second check valve 1031 is arranged on the vent hole 1030, and the second check valve 1031 is opened when the air pressure in the sealed space S is lower than a set value; the gas source 13 is disposed in the sealing subspace S1, and releases the gas in a state where the second check valve 1031 is opened. The set value of the air pressure in the sealed space S defined herein is the same as the set value of the air pressure in the sealed space S defined above when describing the air source 13.

The second one-way valve 1031 includes a fixing member 10310, a cylindrical movable member 10311, and an elastic member 10312, the fixing member 10310 is fixedly connected to the vent hole 1030 with the inner housing 103, and the fixing member 10310 has a through hole along the direction of the vent hole 1030. The cylindrical movable part 10311 is sleeved on the fixing part 10310 and is connected with the vent hole 1030 in a sliding manner. The elastic member 10312 is connected between the fixing member 10310 and the cylindrical movable member 10311. Wherein, the elastic member 10312 is a spring.

The gas source 13 is a container containing a pressurized gas, which is sealed with a sealing membrane 130. The compressed gas in the container can be compressed air, inert gas or gas such as carbon dioxide.

The unsealing mechanism 14 is provided in the sealed subspace S1. In the present embodiment, the unsealing mechanism 14 is a probe connected to the second check valve 1031. Specifically, the probe is connected to a movable end of a second one-way valve 1031, such as a cylindrical movable member 10311 in fig. 3.

In the present embodiment, when the air pressure in the sealed space S is lower than a set value, the second check valve 1031 is opened. As shown in fig. 3, during the opening of the second check valve 1031, the cylindrical movable piece 10311 moves upward. When the cylindrical movable part 10311 moves upward, the probe connected thereto moves upward synchronously, and as the upward movement process continues, the probe moves upward to the sealing film 130 of the gas source 13 and further punctures the sealing film 130, so as to release the compressed gas in the gas source 13. The released compressed gas enters the sealed sub-space S1, and since the second check valve 1031 is opened, the compressed gas in the sealed sub-space S1 enters the sealed space S through the vent hole 1030, so that the amount of gas in the sealed space S is increased, and the gas pressure of the sealed space S is increased. As the air pressure in the sealed space S increases, the difference between the air pressure inside and outside the sealed space S is reduced or even eliminated. Therefore, when the underwater sealed cabin is opened, the upper shell 100 and the lower shell 101 can be smoothly opened, and the condition that the upper shell cannot be opened is avoided.

In addition, the present invention can be implemented by simply changing the embodiment 2 as an alternative embodiment to the embodiment 2. In alternative embodiment of embodiment 2, the second check valve 1031 may also be in various other forms, as long as the second check valve 1031 can be opened when the air pressure in the sealed space S is higher than the set value, and the gas in the sealed space S is discharged to the outside through the vent hole 1030.

In an alternative embodiment of embodiment 2, the unsealing mechanism 14 may not be connected with the second one-way valve 1031, and the sealing mechanism of the gas source 13 is not broken to release the compressed gas from the gas source 13 during the opening of the second one-way valve 1031; instead, the unsealing mechanism 14 independently breaks the sealing mechanism of the gas source 13. Specifically, the unsealing mechanism 14 is a mechanism that can be controlled to move independently, and has an execution end; with the second one-way valve 1031 open, the unsealing mechanism 14 starts to move, and during the movement, its actuating end breaks the sealing mechanism of the gas source 13 to release the compressed air in the gas source 13. For example, when the sealing mechanism of the gas source 13 is a film seal, the actuating end of the unsealing mechanism 14 may be a probe or a blade, and the film seal is punctured or cut and cracked when the unsealing mechanism 14 moves. Compared to the solution of the above embodiment 2, in which the movement of the probe is single and fixed, which is determined by the movable end of the second one-way valve 1031, in this alternative embodiment, the movement of the unsealing mechanism 14 can be various movement manners, so that the restriction on the sealing manner of the gas source 13 is small. For example, in the case where the sealing manner of the gas source 13 is not membrane sealing, but the container of the gas source 13 is sealed by using a rotating cover, the solution of embodiment 2 in which the unsealing mechanism 14 is connected to the second one-way valve 1031 and the sealing of the gas source 13 is broken by the movement of the cylindrical movable member 10311 of the second one-way valve 1031 cannot be applied; however, the independent unsealing mechanism 14 in this alternative embodiment can perform a rotational movement, in which the cover of the gas source 13 is unscrewed, so that the compressed gas in the gas source 13 can be released.

In another alternative embodiment of embodiment 2, the container of the gas source 13 for storing compressed gas may also have a gas outlet provided with an opening and closing mechanism capable of opening and closing the gas outlet. Unlike the embodiment 2 in which the compressed gas of the gas source 13 is released at a time when the unsealing mechanism 14 pierces the sealing film 130, in the present alternative embodiment, the opening and closing mechanism can not only open the container storing the compressed gas to release the gas to the sealed subspace S1 and the sealed space S, but also close the container storing the compressed gas to stop the release of the gas to the sealed subspace S1 and the sealed space S. So that when the pressure of the gas in the sealed space S is again lower than the set value, the opening mechanism may reopen the container storing the compressed gas to release the compressed gas in the gas source 13 to the sealed sub-space S1 and the sealed space S. Specifically, the opening and closing mechanism may be a valve that can be opened repeatedly, or a robot that can perform opening and closing actions.

In another alternative embodiment of embodiment 2, a gas pressure sensor is disposed in the sealed space S for detecting the gas pressure in the sealed space S and sending a signal to the gas source 13 to release gas into the sealed space S when the gas pressure in the sealed space S is lower than a set value. The gas source 13, upon receiving the signal, releases gas into the sealed space S in response to the signal. The action of the gas source 13 to release gas into the sealed space S may specifically be that the unsealing mechanism 14 breaks the seal of the gas source 13, so that the compressed gas of the gas source 13 is released into the sealed space S at one time, or the opening and closing mechanism may open and close a container of the gas source 13 storing the compressed gas, and the amount of the compressed gas released into the sealed space S each time is controlled as required. Compared with the scheme of the embodiment 2, the sealing subspace S1 can be omitted, and the occupied space in the sealing space S is reduced.

The other parts not mentioned in this embodiment are the same as those in embodiment 1, and are not described herein again.

Example 3 of an Underwater sealed cabin

In this embodiment, unlike embodiments 1 and 2, the gas source 13 is a gas generator that can generate gas by a chemical reaction.

In this embodiment, the gas source 13 generates gas by reaction and releases the gas into the sealed space S, and the compressed gas is not stored in the gas source 13, so that the explosion of the container storing the compressed gas does not occur. Meanwhile, when gas does not need to be released into the sealed space S, substances used for reaction are isolated from each other, and high safety is further guaranteed.

Specifically, the gas generating device stores a substance for generating gas through chemical reaction, and the gas generating device generates gas through reaction of all the stored chemical substances at one time and releases the gas into the sealed space S.

In addition, the present invention can be implemented by simply changing the embodiment 3 as an alternative embodiment to the embodiment 3. In an alternative embodiment to embodiment 3, the gas generating device quantitatively outputs part or all of the substance for the chemical reaction that generates the gas. The amount of gas generated each time can be controlled by the arrangement, so that only a proper amount of gas can be reacted each time the gas is released into the sealed space S, and waste is avoided. Moreover, if the gas pressure of the gas in the sealed space S is lower than the set value continuously for a plurality of times, the scheme of the alternative embodiment can also generate gas through reaction under the condition that the gas pressure in the sealed space S is lower than the set value for the second time or the nth time (n is more than or equal to 3), and the problem that the gas pressure in the sealed space S is lower than the set value is improved or solved.

The other parts not mentioned in this embodiment are the same as those in embodiments 1 and 2, and are not described again here.

In summary, in the underwater sealed cabin provided in the above embodiment of the present invention, the casing 10 has the vent hole 102, the waterproof vent valve 12 is disposed at the vent hole 102, and the first check valve 11 is disposed on the outer side of the waterproof vent valve 12, so that the first check valve 11 can protect the waterproof vent valve 12 when the external water pressure is high, and the waterproof vent valve 12 is prevented from being damaged by the excessive water pressure. Meanwhile, the pressure in the sealed space S in the casing 10 is low, and when negative pressure is formed, the first check valve 11 can also protect the waterproof vent valve 12, so that the influence of external water pressure on the waterproof vent valve 12 is avoided, the damage of the waterproof vent valve 12 due to external water pressure is avoided, and the sealed space S in the underwater sealed cabin can be maintained and is not entered by external water.

Embodiments of an underwater apparatus with electronic components

In the present embodiment, the underwater equipment with electronic components includes the underwater sealed cabin provided in the above-mentioned embodiment, and the underwater sealed cabin stores the electronic components of the underwater equipment, which need to be sealed, in the sealed space S inside the underwater equipment, so that the electronic components are prevented from being damaged by water in an underwater environment.

The underwater equipment with the electronic element provided by the embodiment comprises the underwater sealed cabin, when external water pressure is large, and the pressure in the sealed space is low, so that negative pressure is formed, the influence of the external water pressure on the waterproof vent valve is avoided, the damage of the waterproof vent valve due to the external water pressure is avoided, the sealed space in the underwater sealed cabin can be maintained and is not accessed by external water, and good and reliable protection is provided for the electronic element.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An underwater sealed cabin is characterized by comprising a shell, wherein a sealed space is formed in the shell, a vent hole for communicating the outside with the sealed space is formed in the shell, a first one-way valve is arranged at the vent hole, and the first one-way valve is opened when the air pressure in the sealed space is greater than a set value; one end of the first one-way valve, which is connected with the sealed space, is provided with a waterproof vent valve;

the sealed space is internally provided with a gas source which is used for releasing gas into the sealed space when the gas pressure in the sealed space is lower than a set value;

a sealing subspace is arranged in the sealing space, a vent hole is arranged between the sealing subspace and the sealing space, a second one-way valve is arranged on the vent hole, and the second one-way valve is opened when the air pressure in the sealing space is lower than a set value; the gas source is arranged in the sealing subspace and releases gas under the condition that the second one-way valve is opened.

2. The underwater sealed capsule of claim 1, wherein the first one-way valve comprises a fixed member, a cylindrical movable member, and an elastic member; the fixing piece and the shell are fixedly connected at the vent hole, and the fixing piece is provided with a through hole along the direction of the vent hole; the cylindrical moving part is sleeved on the fixing part and is in sliding connection with the vent hole; the elastic piece is connected between the fixed piece and the movable piece.

3. An underwater sealed capsule according to claim 1 or 2, wherein the waterproof venting valve comprises an annular fixture, a seal and a waterproof vented membrane; the annular fixing piece is fixedly arranged at the vent hole; the sealing element is arranged between the fixed element and the shell; the waterproof breathable film is embedded at the annular hole of the annular fixing piece.

4. The underwater sealed cabin of claim 1, wherein a gas pressure sensor is disposed in the sealed space for detecting the gas pressure in the sealed space and sending a signal to the gas source to release gas into the sealed space when the gas pressure in the sealed space is below a set value.

5. The underwater sealed capsule of claim 1 or 4, wherein the gas source is a container storing compressed gas; or

The gas source is a gas generating device capable of generating gas through a chemical reaction.

6. The underwater sealed cabin according to claim 5, wherein the container storing compressed gas has a gas outlet provided with an opening and closing mechanism for opening and closing the gas outlet; or

The container stored with compressed gas is provided with a gas outlet, a sealing mechanism is arranged at the gas outlet, an unsealing mechanism is arranged in the underwater sealed cabin, and the unsealing mechanism is used for destroying the sealing mechanism at one time.

7. The underwater sealed cabin of claim 5, wherein the gas generating device stores a substance for generating gas by chemical reaction, and the gas generating device reacts all the stored chemical substances at one time to generate gas or quantitatively outputs part or all of the substance for chemical reaction to generate gas.

8. An underwater apparatus having electronic components, comprising the underwater sealed cabin as claimed in any one of claims 1 to 7.