CN114258217A

CN114258217A - Portable electronic device, wearable electronic device thereof and control method

Info

Publication number: CN114258217A
Application number: CN202011018039.8A
Authority: CN
Inventors: 黄德利; 阳旭峰; 杨子敏
Original assignee: Guangdong Genius Technology Co Ltd
Current assignee: Guangdong Genius Technology Co Ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2022-03-29

Abstract

The invention discloses a portable electronic device, a wearable electronic device and a control method of the portable electronic device, wherein the portable electronic device comprises: the ventilation valve is connected to the shell, the normally closed state of the ventilation valve prevents the circulation between the air inside the shell and the air outside the shell, the controller is electrically connected with the ventilation valve, and the controller is used for controlling the ventilation valve to be switched from the normally closed state to the open state, so that the circulation between the air inside the shell and the air outside the shell is allowed, and the air pressure inside the shell and the air pressure outside the shell are balanced. Compared with the conventional passive waterproof breathable film, the breathable valve disclosed by the embodiment of the invention can realize air pressure balance between the inside and the outside of the portable electronic device and is not easy to block.

Description

Portable electronic device, wearable electronic device thereof and control method

Technical Field

The present invention relates to portable electronic devices, and particularly to a portable electronic device capable of balancing internal and external air pressures, a wearable electronic device, and a control method thereof.

Background

Some portable electronic devices (e.g., smartwatches, cell phones) have waterproof capabilities that enable waterproof functionality through a sealed structure. The sealing structure also isolates the circulation of air inside and outside the portable electronic device. Some portable electronic devices also include a device that is sensitive to air pressure, which requires a predetermined range of air pressure to operate properly. To this end, some portable electronic devices employ passive waterproof breathable membranes to achieve internal and external pressure equalization. The passive waterproof breathable film has the disadvantage that the passive waterproof breathable film is easy to block, so that the air pressure balance between the inside and the outside of the portable electronic device cannot be continuously realized.

Disclosure of Invention

The embodiment of the invention discloses a portable electronic device, a wearable electronic device and a control method thereof, which can actively balance internal air pressure and external air pressure by utilizing a vent valve.

In order to achieve the above object, in a first aspect, the present invention discloses a portable electronic device, comprising: a housing; a vent valve connected to the housing, a normally closed state of the vent valve preventing communication between air inside the housing and air outside the housing; a controller electrically connected to the vent valve, the controller for controlling the vent valve to switch from the normally closed state to an open state, thereby allowing communication between air inside the housing and air outside the housing to equalize air pressure inside and outside the housing.

As an optional implementation manner, in an embodiment manner of the present invention, the ventilation valve includes a valve body, a moving member, and a driving member; one of the valve body and the moving part is connected to the shell, and when the ventilation valve is in a normally closed state, the valve body and the moving part are mutually matched to form a sealing state so as to prevent the air inside the shell from communicating with the air outside the shell; the driving part is electrically connected with the controller and used for driving the moving part, so that at least one part of the moving part moves relative to the valve body, a gap is formed between the valve body and the moving part, and air inside the shell and air outside the shell are allowed to circulate through the gap.

As an alternative implementation manner, in an embodiment manner of the present invention, the driving element is an electromagnet, the moving element includes a magnet, and after the driving element is powered on, a repulsive force that repels each other is generated between the driving element and the magnet, and the repulsive force pushes the moving element so as to generate the gap.

As an optional implementation manner, in an embodiment manner of the present invention, the moving member further includes a base plate having an elastic deformation capability, the magnet is fixed to the base plate, the base plate and the moving member are mutually matched to form a sealed state, and the repulsive force can push the magnet to move to drive the base plate to generate an elastic deformation, so that the gap is formed between the valve body and the moving member.

As an optional implementation manner, in an embodiment of the present invention, the vent valve further includes an elastic resetting member, the moving member further includes a base plate, the base plate and the moving member are matched with each other to form a sealed state, the magnet is fixed to the base plate, the repulsive force can push the magnet to move to drive the base plate to move in a direction away from the valve body, the elastic resetting member is configured to apply an acting force to the base plate, and the acting force drives the base plate to move to an initial position and is matched with the moving member to form a sealed state.

As an optional implementation manner, in an embodiment of the present invention, the vent valve further includes an elastic member, the driving member is an electromagnet, the moving member includes an engaging portion that can be attracted by a magnetic force, after the driving member is powered on, an attractive force that attracts the driving member and the engaging portion to each other is generated between the driving member and the engaging portion, the attractive force enables the moving member and the valve body to cooperate with each other to form a sealed state, and after the driving member is powered off, the elastic member drives the moving member to move in a direction away from the valve body, so that the gap is generated.

As an alternative, in an embodiment of the present invention, the driving member includes a linear actuator, the linear actuator includes a guide rod and a slider capable of sliding along the guide rod, the slider is in contact with the moving member, and the sliding movement can drive at least a portion of the moving member to move relative to the valve body, so as to form a gap between the valve body and the moving member, and further allow air inside the housing to communicate with air outside the housing through the gap.

As an optional implementation manner, in an embodiment manner of the present invention, the moving member is connected to the housing, the moving member is located between the housing and the valve body, the housing, the moving member, and the valve body are respectively provided with a first through hole, a second through hole, and a third through hole, the first through hole is communicated with the outside of the housing and the second through hole, the third through hole is communicated with the inside of the housing, in the normally closed state, the valve body and the moving member are mutually matched to isolate the third through hole from the second through hole, and in the open state, the third through hole is communicated with the second through hole through the gap.

As an optional implementation manner, in an embodiment manner of the present invention, the valve body is connected to the housing, the valve body is located between the housing and the moving member, the housing, the moving member, and the valve body are respectively provided with a first through hole, a second through hole, and a third through hole, the first through hole is communicated with both the outside of the housing and the third through hole, the second through hole is communicated with the inside of the housing, in the normally closed state, the valve body and the moving member cooperate with each other to isolate the third through hole from the second through hole, and in the open state, the third through hole is communicated with the second through hole through the gap.

As an alternative implementation manner, in an embodiment manner of the present invention, the valve body is connected to the housing, the housing and the valve body are respectively provided with a first through hole and a third through hole, the first through hole is communicated with an outside of the housing, the third through hole is communicated with an inside of the housing, the moving member is located in the third through hole, in the normally closed state, the moving member blocks air from passing through the third through hole, and in the open state, the first through hole and the third through hole are communicated.

As an alternative implementation manner, in an embodiment manner of the present invention, the valve body is provided with a first positioning portion facing the moving member, the moving member is correspondingly provided with a second positioning portion, and the second positioning portion and the first positioning portion cooperate to form the sealing state.

As an alternative embodiment, in an embodiment of the present invention, the first positioning portion is a recess formed in the valve body and communicating with the inside of the housing, and the second positioning portion is a protrusion provided on a surface of the moving member facing the valve body.

As an optional implementation manner, in an embodiment manner of the present invention, the ventilation valve further includes a valve cover, the valve cover is hermetically connected to the housing, the valve cover is provided with a fourth through hole communicated with the inside of the housing or the outside of the housing, and in the open state, the fourth through hole is communicated with the gap.

As an alternative embodiment, in an embodiment of the present invention, the housing is provided with a housing chamber communicating with an inside and an outside of the housing, and the ventilation valve is housed in the housing chamber.

As an optional implementation manner, in an embodiment of the present invention, the air vent valve further includes a sealing ring, and the sealing ring abuts between the air vent valve and an inner surface of the housing cavity.

As an optional implementation manner, in an embodiment manner of the present invention, the dust-proof screen is further included, the dust-proof screen is connected to the housing, the housing is provided with a first through hole communicated with the accommodating cavity, and the dust-proof screen covers the first through hole.

As an alternative implementation, in an embodiment of the present invention, the controller is configured to control the ventilation valve to switch from the open state to the normally closed state in response to a specific event, wherein the specific event includes detecting that liquid enters between the housing and the ventilation valve.

As an optional implementation manner, in an embodiment manner of the present invention, the vent valve further includes a liquid detecting component, the liquid detecting component is disposed on the valve body or the moving member, and the liquid detecting component is communicated with an outside of the housing and is used for detecting whether liquid enters between the housing and the vent valve.

As an optional implementation manner, in an embodiment manner of the present invention, the liquid detection assembly includes: the gas-permeable valve comprises two electrodes and a resistance detection unit which are mutually spaced, wherein the resistance detection unit is used for detecting the resistance value between the two electrodes, and the controller determines whether liquid enters between the shell and the gas-permeable valve according to the resistance value between the two electrodes.

As an alternative implementation manner, in an embodiment manner of the present invention, the valve body is further provided with an accommodating space communicated with the outside of the housing, and the two electrodes are provided in the accommodating space.

As an alternative implementation manner, in an embodiment manner of the present invention, the speaker is further included, and the casing is provided with a sound outlet hole for allowing sound output by the speaker to propagate to the outside of the casing.

As an alternative implementation, in an embodiment mode of the invention, at least one of the following elements is further included: the temperature sensor is used for detecting the temperature inside the shell, the air pressure sensor is used for detecting the air pressure inside the shell, and the input device is used for receiving the input of a user; the controller responds to an event meeting preset conditions, and controls the ventilation valve to be switched from the normally closed state to the open state, wherein the event meeting the preset conditions is a specific command input by a user through an input device, or changes of the temperature inside the shell and meeting specific rules, or changes of the air pressure inside the shell and meeting specific rules.

In a second aspect, the present invention further provides a wearable electronic device, including a connecting portion and the portable electronic device, where the connecting portion is connected to a housing of the portable electronic device, and the connecting portion is used to detachably connect the portable electronic device to a preset target.

In a third aspect, the present invention further provides a method for controlling the portable electronic device, including: monitoring whether an event meeting a preset condition occurs or not; when an event meeting preset conditions occurs, the controller of the portable electronic device controls the ventilation valve to be switched from the normally closed state to the open state so as to balance the air pressure inside and outside the shell.

Compared with the prior art, the invention has the beneficial effects that:

compared with the conventional passive waterproof breathable film, the breathable valve disclosed by the embodiment of the invention can realize air pressure balance between the inside and the outside of the portable electronic device and is not easy to block. In addition, the vent valve disclosed by the embodiment of the invention can provide a channel which is much larger than the micro-hole of the passive waterproof breathable film in the opening state, so that the air pressure balance between the inside and the outside of the portable electronic device can be realized more efficiently.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic partial cross-sectional view of a portable electronic device according to an embodiment of the present invention, wherein a vent valve is in a normally closed state;

FIG. 2 is a schematic partial cross-sectional view of a portable electronic device according to an embodiment of the present disclosure, wherein a venting valve is in an open state;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a diagram of a hardware configuration of a portable electronic device according to an embodiment of the disclosure;

FIG. 5 is another embodiment of the portable electronic device shown in FIG. 3;

FIG. 6 is another embodiment of the portable electronic device shown in FIG. 2;

FIG. 7 is another embodiment of the portable electronic device shown in FIG. 2;

FIG. 8 is another embodiment of the portable electronic device shown in FIG. 3;

FIG. 9 is a diagram of a hardware configuration of a portable electronic device according to an embodiment of the disclosure;

FIG. 10 is another embodiment of the portable electronic device shown in FIG. 3;

FIG. 11 is another embodiment of the portable electronic device shown in FIG. 3;

FIG. 12 is another embodiment of the portable electronic device shown in FIG. 3;

FIG. 13 is a schematic diagram of a liquid detection assembly of a portable electronic device according to an embodiment of the disclosure;

fig. 14 is a flowchart of a control method of a portable electronic device according to an embodiment of the disclosure.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "center", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

The embodiment of the invention discloses a portable electronic device which is provided with a vent valve, wherein the vent valve can be controlled to be switched between a normally closed state and an opened state, the normally closed state of the vent valve prevents the air inside a shell from flowing through the air outside the shell, and the opened state of the vent valve allows the air inside the shell to flow through the air outside the shell. As such, the portable electronic device may be configured to equalize air pressure between the interior and the exterior under certain circumstances. Compared with the conventional passive waterproof breathable film, the breathable valve disclosed by the embodiment of the invention can realize air pressure balance between the inside and the outside of the portable electronic device and is not easy to block. The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Referring to fig. 1-4, in one embodiment, a portable electronic device 100 includes a housing 10, a vent valve 20, and a controller 30. The breather valve 20 is connected to the housing 10, the breather valve 20 being in a normally closed state, wherein the normally closed state prevents communication between air inside the housing and air outside the housing. The controller 30 is electrically connected to the ventilation valve 20, and is used for controlling the ventilation valve 20 to be switched from the normally closed state to the open state, so as to allow the communication between the air inside the casing 10 and the air outside the casing 10, so as to balance the air pressure inside the casing 10 and the air pressure outside the casing 10.

The portable electronic device 100 may be a cell phone, a wearable device (e.g., a smart watch), etc., but is not limited thereto. The technical solution disclosed in the above embodiments may be used to actively perform internal and external air pressure balancing on the portable electronic device, for example, to switch the ventilation valve 20 from the normally closed state to the open state in a specific scene, so as to allow air inside and outside the electronic device to circulate.

The technical solution disclosed in the above embodiments of the present invention has a more obvious effect on a portable electronic device (e.g. a smart watch) with a compact internal space, because the electronic components included in the portable electronic device are intensively arranged in the compact space, and such an arrangement is not favorable for heat dissipation, and especially in some scenarios, the electronic components with high load may generate a large amount of heat in a short time. The heat build-up in the compact space causes a rapid rise in temperature and, in turn, a rapid rise in air pressure inside the portable electronic device. This may cause some electronic components in the portable electronic device to be in a bad working environment, for example, the pressure sensor may not accurately detect the pressure outside the portable electronic device due to the rise of the internal pressure, and the speaker may not output the optimal sound effect or even work normally due to the rise of the internal pressure. In addition, the higher internal air pressure relative to the external air pressure can also stress the seal, even causing seal failure or housing rupture. The vent valve in the open state provides a much larger and less likely to clog passageway than the micro-pores of the passive waterproof breathable membrane, thereby more efficiently achieving air pressure equilibrium between the interior and exterior of the portable electronic device.

In one embodiment, the ventilation valve 20 includes a valve body 21, a moving member 22 connected to the valve body 21, and a driving member 23. One of the valve body 21 and the moving member 22 is connected to the housing 10, when the ventilation valve 20 is in the normally closed state, the valve body 21 and the moving member 22 cooperate with each other to form a sealed state, and prevent the air inside the housing 10 from flowing through the air outside the housing 10, the driving member 23 is electrically connected to the controller 30, and the driving member 23 is configured to drive the moving member 22, so that at least a portion of the moving member 22 moves relative to the valve body 21, thereby forming a gap 24 between the valve body 21 and the moving member 22, and further allowing the air inside the housing 10 to flow through the gap 24 with the air outside the housing 10. The breather valve 20 can be implemented in a number of different embodiments, each of which will be described in detail below.

Example one

In the present embodiment, the ventilation valve 20 is disposed inside the housing 10, for example, the inner surface of the housing 10 is provided with a receiving cavity 11, the receiving cavity 11 is communicated with the inner space of the housing 10 and includes an opening facing the inner space of the housing 10, and the ventilation valve 20 is received in the receiving cavity 11. The housing 10 is further provided with a first through hole 12 communicating with the outside thereof, and the first through hole 12 extends inward from the outer surface of the housing 10 until communicating with the receiving cavity 11. When the air-vent valve 20 is in the normally closed state, the air inside the housing 10 cannot flow outward. When the air permeation valve 20 is in the open state, air inside the casing 10 can flow out to the outside of the casing 10 through the gap 24 and the first through hole 12.

With the above scheme, the vent valve 20 is disposed near the first through hole 12, so that air inside the housing 10 passes through the vent valve 20 and then rapidly flows to the outside of the housing 10, which is beneficial to rapidly achieving air pressure balance between the inside and the outside of the housing 10.

Those skilled in the art who understand the present invention will appreciate that the placement of the purge valve 20 relative to the housing 10 is required to ensure that air inside the housing 10 can flow out of the housing 10 after passing through the gap 24. The arrangement of the breather valve 20 with respect to the housing 10 is not limited to the above-described manner, and may be changed according to actual needs. For example, the receiving cavity 11 may extend directly from the inner surface of the housing 10 to the outer surface of the housing 10, and one end of the purge valve 20 is substantially flush with the outer surface of the housing 10. At this time, the end of the breather valve 20 is directly exposed, and the housing 10 is no longer required to be provided with the first through hole 12. Other arrangements of the purge valve 20 will not be described in detail herein.

In the present embodiment, the portable electronic device 100 includes a dust screen 40, and the dust screen 40 is connected to the housing 10 and covers the first through hole 12 for preventing particles such as dust from entering the first through hole 12 and further entering the interior of the housing 10. Specifically, the first through hole 12 may be a stepped hole, that is, two holes with different diameters and communicating with each other, and the dust screen 40 is accommodated in the hole with the larger diameter and covers the hole with the smaller diameter.

In this embodiment, the moving element 22 is connected to the housing 10, the moving element 22 is located between the housing 10 and the valve body 21, the moving element 22 and the valve body 21 are respectively provided with a second through hole 221 and a third through hole 211, the second through hole 221 is communicated with the first through hole 12, and the third through hole 211 is communicated with the inside of the housing 10. In the normally closed state of the breather valve 20, the valve body 21 and the moving member 22 cooperate with each other to isolate the third through hole 211 from the second through hole 221. In the open state of the breather valve 20, the third through-hole 211 communicates with the second through-hole 221 through the gap 24, so that the air inside the housing 10 is allowed to flow to the outside of the housing 10 after passing through the third through-hole 211, the gap 24, the second through-hole 221, and the first through-hole 12 in this order.

In the present embodiment, the ventilation valve 20 further includes a valve cover 25, and the moving member 22 is fixed to the housing 10 through the valve cover 25. Specifically, the moving member 22 is fixed to the valve cover 25, and the valve cover 25 is fixed to the bottom surface of the receiving cavity 11 of the housing 10. In the present embodiment, the valve cover 25 includes a base portion 251 and a wall portion 252 surrounding an edge of the base portion 251, and one end of the valve body 21 and the moving member 22 are accommodated in a space defined by the wall portion 252. The outer end face of the base 251 is fixed to the bottom face of the housing cavity 11. The valve body 21 and the valve cover 25 may be connected to each other by conventional connection means, such as screws, glue, mechanical snap-fit, etc., as well as the connection between the valve cover 25 and the housing 10.

In the present embodiment, the valve cover 25 is provided with the fourth through hole 253, and the fourth through hole 253 communicates with the first through hole 12 through the gap 26 between the outer end surface of the base 251 and the inner surface of the housing 10. In other embodiments, the fourth through hole 253 may be disposed to be directly opposite to the first through hole 12, and in this case, the gap 26 may be omitted. In the open state of the breather valve 20, the air inside the casing 10 flows to the outside of the casing 10 after passing through the third through hole 211, the gap 24, the second through hole 221, the fourth through hole 253, and the first through hole 12 in this order.

The valve cover 25 can protect the valve body 21 and the moving member 22, and can serve as a reference for positioning the moving member 22 through the base portion 251 and the wall portion 252 of the valve cover 25. It should be noted that in other embodiments, valve cover 25 may be omitted as desired, and movable member 22 and/or valve body 21 may be directly attached to the inner surface of housing 10 by conventional attachment means.

In the present embodiment, an elastic sealing ring 50 is disposed between the base 251 of the valve cover 25 and the inner surface of the receiving cavity 11, and the elastic sealing ring 50 is elastically deformed by being pressed by the base 251 and the inner surface of the receiving cavity 11, thereby forming a sealing structure to seal the base 251 and the inner surface of the receiving cavity 11, and preventing a gap from being formed between the base 251 and the inner surface of the receiving cavity 11 to allow liquid/air to pass therethrough. It will be appreciated that an elastomeric seal (not shown) may also be provided between the valve body 21 and the inner surface of the wall 252 of the bonnet 25 to prevent a gap from being present between the valve body 21 and the inner surface of the wall 252 of the bonnet 25 to allow liquid/air to pass through.

In the present embodiment, the valve body 21 has a cylindrical shape as a whole, and the third through hole 211 extends from one end (top end in fig. 3) of the valve body 21 to the opposite end (bottom end in fig. 3). The moving member 22 is located at the top end of the valve body 21. The displacement member 22 can be arranged in a number of different ways. For example, in the first arrangement, the edge of the moving member 22 is fixedly connected to the edge of the valve body 21, the rest of the moving member 22 and the valve body 21 are not connected to each other except the edge fixedly connected to each other, and the end surfaces of the moving member 22 and the valve body 21 where the third through hole 211 is formed are kept in close contact to form a seal, so that the third through hole 211 and the second through hole 221 are isolated, and air is prevented from flowing into the second through hole 221 from the third through hole 221. The moving member 22 has an elastic deformation capability, and a part of the moving member 22 can move relative to the valve body 21. When driven by the driving member 23, the moving member 22 is elastically deformed so that a portion thereof, which is in close contact with the end surface of the valve body 21 where the third through hole 211 is formed, is separated from the end surface, thereby forming the gap 24. By adopting the mode, the moving part 22 can return to the sealing state with the valve body 21 by means of the elastic deformation of the moving part, and an additional elastic resetting part is not required to be arranged, so that the structure is simplified. In a second arrangement, the displacement member 22 is not connected to the valve body 21, and the whole is displaceable relative to the valve body 21, thereby allowing a clearance 24 to be formed between the displacement member 22 and the valve body 21. With this arrangement, it is not necessary to fix moving member 22, which is advantageous in simplifying the manufacturing process and saving the cost. The function of the above-described configuration of the valve body 21 and the moving member 22 will be more apparent from the following detailed description of the driving member 23.

In this embodiment, the driving member 23 is an electromagnet, the moving member 22 includes a magnet 222, and after the driving member 22 and the magnet 222 are energized, a repulsive force is generated between them, and the repulsive force pushes the moving member 22 to generate the gap 24. Specifically, the moving member 22 includes a base 223 having an elastic deformation capability. The edge of the base plate 223 is fixedly connected to the edge of the valve body 21, the rest parts of the two are not connected to each other except the edges fixedly connected to each other, and the end surfaces of the base plate 223 and the valve body 21 formed with the third through hole 211 are kept in close contact to form a seal. The magnet 222 is fixed to the base plate 223, and the magnet 222 is located between the base plate 223 and the inner surface of the base 251 of the end cap 25. There is a gap between the magnet 222 and the inner surface of the base 251 that allows the magnet 222 to move toward the inner surface of the base 251 until contacting the inner surface of the base 251. The repulsive force can push the magnet 222 to move in a direction away from the valve body 21, and drive the substrate 223 to generate elastic deformation, so that the gap 24 is formed between the valve body 21 and the substrate 223 of the moving part 22. When the repulsive force generated by the electromagnet disappears, the base plate 223 returns to the original shape, and thus returns to be in close contact with the end surface of the valve body 21 where the third through hole 211 is formed, thereby forming a seal.

The displacement member 22 may also be arranged in different ways. For example, as shown in fig. 5, the base plate 223 is not coupled to the valve body 21, and the edge of the base plate 223 is tightly clamped between the valve body 21 and the valve cover 25 so as not to move, for example, by contacting the bottom surface of the base plate 223 at its edge with the edge of the valve body 21, and the top surface of the base plate 223 at its edge is further formed with a protrusion 224, and the protrusion 224 is in contact with the inner surface of the valve cover 25, so that the edge of the base plate 223 is tightly clamped between the valve body 21 and the valve cover 25. When the driving member 23 generates a repulsive force to the magnet 222, the magnet 222 moves in a direction away from the valve body 21, and further drives the substrate 223 to generate elastic deformation, so that the gap 24 is formed between the valve body 21 and the substrate 223 of the moving member 22. For another example, the base 223 is not connected to the valve body 21, and the base 223 as a whole can move relative to the valve body 21. When the driver 23 generates a repulsive force against the magnet 222, the base 223 is moved in a direction away from the valve body 21 by being guided by the inner surface of the wall portion 252 of the bonnet 25 until the magnet 222 contacts the inner surface of the base 251 of the bonnet 25. In order that the base plate 223 may return to the initial position and be in close contact with the end surface of the valve body 21 to form a seal after the repulsive force generated by the electromagnet disappears, one or more springs (not shown) may be disposed between the base plate 223 and the base 251 of the end cap 25, both ends of the springs respectively abutting against the base plate 223 and the base 251, the springs being in a compressed state, and the springs pushing the base plate 223 to return to the initial position and be in close contact with the end surface of the valve body 21 to form a seal after the repulsive force generated by the electromagnet disappears. The base 223 is made of a material (e.g., silicone) capable of generating elastic deformation, and the base 223 is elastically deformed by the urging force of the spring, so that a seal is formed between the base 223 and the end face of the valve body 21 in contact therewith.

As shown in fig. 3, in the present embodiment, the end surface of the valve body 21 on which the third through hole 211 is formed is a flat surface, the bottom surface of the moving element 22 that is engaged with the end surface is also a flat surface, and the bottom surface of the moving element 22 is closely attached to the end surface of the valve body 21. It is to be understood that the configurations of the valve body 21 and the moving member 22 are not limited thereto as long as a seal can be formed between the moving member 22 and the valve body 21. For example, as shown in fig. 6 and 7, the valve body 21 is provided with a first positioning portion facing the moving member 22, and the moving member 22 is correspondingly provided with a second positioning portion, and the second positioning portion and the first positioning portion cooperate to form the sealing state. Specifically, the first positioning portion is a recess formed in the valve body 21 and communicating with the inside of the housing 10, and the second positioning portion is a protrusion 225 provided on a surface of the moving member 22 facing the valve body 21. The protrusion 225 may have a truncated cone shape (see fig. 6), in which the third through hole 211 may be a recess, and the protrusion 225 is accommodated in the third through hole 211 and then is pressed by an inner side surface of the third through hole 211 to be elastically deformed, thereby forming a seal preventing air from flowing between the inside and the outside of the housing 10. The protrusion 225 may also be hemispherical (see fig. 7), in which case the recess is communicated with the third through hole 211 and has a spherical inner surface, and the protrusion 225 is elastically deformed by being pressed by the spherical inner surface after being received in the recess, thereby forming a seal for preventing the air inside and outside the housing 10 from flowing.

In the present embodiment, the driving member 23 is an electromagnet, and includes a coil 231 and an iron core surrounded by the coil 231. To simplify the structure, the valve body 21 is made of a magnetically conductive material, and the iron core is a part of the valve body 21. Specifically, the valve body 21 further includes an annular receiving space 212 surrounding the third through hole 211, so that a cylinder 213 is formed to separate the third through hole 211 from the receiving space 212, the cylinder 213 is used as an iron core, the coil 231 is received in the receiving space 212 and surrounds the outer surface of the cylinder 213, two ends of the coil 231 extend into the housing 10, and current can flow in from one end and flow out from the other end. It will be appreciated that the core may also be a separately manufactured component which may be attached to the valve body 21 by conventional attachment means. When the coil 231 is energized under the control of the controller 30, the coil 231 engages the iron core to generate a repulsive force against the magnet 222, and when the coil 231 is energized under the control of the controller 30, the repulsive force disappears. In the present embodiment, since the valve body 21 is made of a magnetic conductive material, when the repulsive force disappears, the attractive force between the magnet 222 and the valve body 21 also drives the moving member 22 to move toward the valve body 21 until the two return to the initial sealing state. The driving member 23 based on the electromagnet is simple and reliable in structure, and the driving member 23 can be controlled to be switched between a normally closed state and an open state only by switching on and off of current. In addition, the ventilation valve 20 based on the driving member 23 is normally closed, that is, the ventilation valve 20 is normally closed to isolate the inside and the outside of the housing 10, and the ventilation valve 20 is switched to the open state only by energizing the driving member 23 in a specific scene, which is beneficial to reducing the power consumption of the portable electronic device.

Example two

Referring to fig. 8, the ventilation valve of the present embodiment is added with only the elastic member 27 as compared to the ventilation valve shown in fig. 3, and the rest of the elements are the same and the same elements are denoted by the same reference numerals. The present embodiment will be described in detail below.

In this embodiment, the magnet 222 may be replaced by a metal member capable of being attracted by a magnetic force, and for convenience of description, the magnet 222 and the metal member capable of being attracted by a magnetic force are collectively referred to as an engaging portion. After the coil 231 is energized, a suction force is generated between the coil 231 and the mating portion, the suction force causes the moving member 22 and the valve body 21 to mate with each other to form a sealed state, and after the coil 231 of the driving member 23 is de-energized, the suction force disappears, and the elastic member 27 drives the moving member 22 to move in a direction away from the valve body 21, so that the gap 24 is generated.

In certain scenarios, the controller 30 controls the coil 231 to be de-energized to switch the purge valve 20 to an open state to allow communication between air inside the housing 10 and air outside the housing 10 to balance the air pressures inside and outside the housing 10. When necessary, the controller 30 controls the coil 231 to be powered on, and the suction force generated after the power-on overcomes the acting force applied to the moving member 22 by the elastic member 27, and drives the moving member 22 to move until the moving member and the valve body 21 return to the sealing state, so as to switch the ventilation valve 20 to the normally closed state.

In the present embodiment, the elastic member 27 is provided between the base plate 223 and the valve body 21. Specifically, the end surface of the valve body 21 provided with the third through hole 211 is provided with a receiving hole 214, one end of the elastic member 27 is received in the receiving hole 214, the other end of the elastic member 27 abuts against the bottom surface of the base plate 223 facing the valve body 21, and the elastic member 27 is in a compressed state and is used for applying a pushing force to the base plate 223.

It is understood that the elastic member 27 is also disposed between the base 223 and the end cap 25, and both ends thereof are fixed to the base 223 and the end cap 25, respectively, for applying a pulling force to the base 223. When the coil 231 is powered off, the pulling force of the elastic element 27 pulls the base plate 223 to leave the valve body 21 to form the gap 24, and when the coil 231 is powered on, the attraction force generated by the matching of the coil 231 and the iron core overcomes the pulling force of the elastic element 27 to drive the base plate 223 to move until the base plate 223 and the valve body 21 are matched with each other to form a sealing state.

EXAMPLE III

Unlike the state switching of the ventilation valve 20 in the first and second embodiments, which involves de-energizing the coil 231, in the present embodiment, the coil 231 is always kept energized during the state switching of the ventilation valve 20.

The vent valve of the present embodiment has the same configuration as the vent valve disclosed in the first embodiment, and the same elements are denoted by the same reference numerals. Referring to fig. 9, a current direction control circuit 31 is connected between the coil 231 and the controller 30, and the controller 30 can change the direction of the current flowing into the coil 231 through the current direction control circuit 31, so that the coil 231 and the iron core can cooperate to generate a repulsive force or an attractive force to the magnet 222 as required. In a specific scenario, the controller 30 controls the current in the first direction to flow into the coil 231, and the cooperation of the coil 231 and the iron core generates a repulsive force to the magnet 222, pushing the substrate 223 to move away from the valve body 21, thereby forming the gap 24 between the substrate 223 and the valve body 21. When necessary, the controller 30 controls the current in the second direction to flow into the coil 231, the coil 231 and the iron core are matched to generate an attraction force to the magnet 222, and the base plate 223 is pulled to move towards the valve body 21 until the base plate 223 and the valve body 21 are matched to form a sealing state.

It will be appreciated that modifications to the coil 231 of the vent valve disclosed in example one may also implement the vent valve of this embodiment. Specifically, on the basis of the vent valve disclosed in the first embodiment, two sets of coils 231 are disposed on the outer surface of the cylinder 213, and the winding directions of the two sets of coils 231 are opposite. In a specific scenario, the controller 30 controls the current to flow into the first set of coils 231, and the second set of coils 231 is de-energized, and the cooperation of the first set of coils 231 and the iron core generates a repulsive force to the magnet 222, so as to push the base 223 to move away from the valve body 21, thereby forming the gap 24 between the base 223 and the valve body 21. When necessary, the controller 30 controls the current to flow into the second set of coils 231, and the first set of coils 231 is de-energized, the cooperation of the second set of coils 231 and the iron core generates the attraction force to the magnet 222, and the base plate 223 is pulled to move towards the direction close to the valve body 21 until the base plate 223 and the valve body 21 are mutually matched to form a sealing state.

Example four

The ventilation valve of the present embodiment uses a linear actuator instead of the solenoid-type driving member shown in fig. 3, and the remaining elements are the same and the same elements are denoted by the same reference numerals. The present embodiment will be described in detail below.

Referring to fig. 10, the driving member 23 of the present embodiment is a linear actuator, which includes a body 232, a guide rod 233 extending from one end of the body, and a sliding block 234 capable of sliding along the guide rod 233. The driver 23 is fixed in the third through hole 211 of the valve body 21. The body 232 includes a motor for driving the guide rod 233 to rotate, and the slider 234 connected to the guide rod 233 is driven by the guide rod 233 to move linearly along the guide rod 233.

The sliding block 234 is in contact with the moving member 22, and the movement of the sliding block 234 drives at least a portion of the moving member 22 to move relative to the valve body 21, so that a gap 24 is formed between the valve body 21 and the moving member 22. In this embodiment, the sliding block 234 is fixed to the moving part 22, and the sliding block 234 can push at least a part of the moving part 22 to leave the valve body 21 and can also pull at least a part of the moving part 22 to move towards the valve body 21 until the moving part 22 and the valve body 21 are mutually matched to form a sealing state.

It will be appreciated that the slide 234 may not be fixed to the moving member 22, and the slide 234 may only push at least a portion of the moving member 22 away from the valve body 21 to form the gap 24. At this time, the ventilation valve 20 further includes an elastic restoring member (not shown) for applying a pushing force or a pulling force to the moving member 22, and for driving the moving member 22 to return to the state of being engaged with the valve body 21 to form a sealing state after the sliding block 234 is disengaged from the moving member 22.

EXAMPLE five

Referring to fig. 11, compared with the ventilation valve shown in fig. 3, the ventilation valve of the present embodiment adjusts the position of the moving member, and the remaining elements are the same, and the same elements are denoted by the same reference numerals. The present embodiment will be described in detail below.

In the present embodiment, the valve body 21 has one end (top end in fig. 11) near the housing 10 and one end (bottom end in fig. 11) near the inner space of the housing 10, and the moving member 22 is located at the bottom end of the valve body 21. The valve body 21 is connected to the housing 10, for example, by a valve cover 25 to the housing 10. Namely, the valve body 21 is located between the housing 10 and the movable member 22, the first through hole 12 communicates with both the outside of the housing and the third through hole 211, and the second through hole 221 communicates with the inside of the housing 10. In the normally closed state, the valve body 21 and the moving member 22 cooperate with each other to isolate the third through hole 211 from the inside of the housing 10, and in the open state, the third through hole 211 is communicated with the second through hole 221 through the gap 24, and further communicated with the inside of the housing 10.

The relationship between the moving member 22 and the valve body 21 can refer to the relationship between the moving member 22 and the valve body 21 disclosed in the first embodiment. For example, the edge of the moving member 22 is fixedly connected to the edge of the valve body 21, the rest parts of the moving member 22 and the valve body 21 are not connected to each other except the edge fixedly connected to each other, and the end surfaces of the moving member 22 and the valve body 21 where the third through hole 211 is formed are kept in close contact to form a seal, thereby isolating the third through hole 211 from the second through hole 221. The moving member 22 has an elastic deformation capability, and a part of the moving member 22 can move relative to the valve body 21. When driven by the driving member 23, the moving member 22 is elastically deformed so that a portion thereof, which is in close contact with the end surface of the valve body 21 where the third through hole 211 is formed, is separated from the end surface, thereby forming the gap 24. The relationship between the moving element 22 and the valve body 21 is not limited thereto, and the relationship between the moving element 22 and the valve body 21 has been described in detail in the foregoing embodiment, and is not described again.

It is understood that the driving member 23 in this embodiment may adopt an electromagnet type driving member disclosed in the second embodiment, the second embodiment or the third embodiment, or may adopt a linear driver disclosed in the fourth embodiment, which is not described herein again.

EXAMPLE six

Referring to fig. 12, compared with the ventilation valve shown in fig. 3, the ventilation valve of the present embodiment adjusts the position of the moving member, and the remaining elements are the same, and the same elements are denoted by the same reference numerals. The present embodiment will be described in detail below.

In the present embodiment, the valve body 21 is connected to the housing 10, and may be connected to the housing 10 through a valve cover 25, for example. The first through hole 12 communicates with the outside of the housing 10, and the third through hole 211 communicates with the inside of the housing. The moving member 22 is located in the third through hole 211, and in the normally closed state of the ventilation valve 20, the moving member 22 prevents air from passing through the third through hole 211, and in the open state of the ventilation valve 20, the first through hole 12 is communicated with the third through hole 211.

In this embodiment, the third through hole 211 is a stepped hole, that is, two holes with different diameters and communicating with each other are included, the moving member 22 is located in a hole with a larger diameter and located near one end (top end in fig. 12) of the first through hole 12, and the moving member 22 located in the third through hole 211 blocks the third through hole, so that air can be prevented from passing through the third through hole 211. Between the end face of the valve body 21 where the third through hole 211 is formed and the end cover 25, or between the end cover 25 and the housing 10 when omitted, there is a space in which the moving member 22 can be accommodated. When driven by the driving member 23, the moving member 22 moves away from the third through hole 211 until contacting the valve cover 25 or the housing 10, and a gap 24 is formed between the edge of the moving member 22 and the edge of the third through hole 211. The first through hole 12 communicates with the third through hole 211 through a gap, thereby allowing air circulation between the inside and the outside of the housing 10.

It is understood that the moving member 22 may be located at other positions in the third through hole 211, for example, at one end (the bottom end in fig. 12) near the inner space of the housing 10, and at this time, another end cover (not shown) may be provided, and the end cover may be connected to the valve body 21 or the housing 10, and a space capable of accommodating the moving member 22 exists between the inner surface of the end cover and the end surface of the valve body 21 where the third through hole 211 is formed. When driven by the driving member 23, the moving member 22 moves away from the third through hole 211 until contacting the valve cover. A person skilled in the art who understands this embodiment can dispose the moving member 22 at other positions in the third through hole 211 according to actual needs, and details are not described herein.

In this embodiment, the ventilation valve 20 may further include an elastic restoring member (not shown), which may be a spring, and one end of the elastic restoring member is fixed to the valve body 21 and the other end thereof is fixed to the moving member 22. The elastic restoring member is used for applying a pulling force to the moving member 22, and when the driving member 23 no longer applies a repulsive force to the moving member 22, the pulling force of the elastic restoring member pulls the moving member 22 back into the third through hole 211.

Referring again to fig. 4, the controller 30 disclosed in this embodiment is capable of reading computer readable instructions stored in the memory of the portable electronic device 100, which may cause the controller 30 to perform control of the purge valve 20 and other components. The controller 30 may be a Central Processing Unit (CPU) of the portable electronic device 100, an Application Specific Integrated Chip (ASIC), other microcontrollers, and the like.

In one embodiment, the controller 30 controls the ventilation valve 20 to switch from the normally closed state to the open state in response to an event meeting a preset condition. In this embodiment, the portable electronic device 100 further comprises a speaker 90 electrically connected to the controller 30, wherein the speaker 90 is required to operate under a predetermined range of air pressure. When the internal space of the portable electronic device 100 is compact and the electronic components are densely arranged in the internal space, in some scenarios, some electronic components (such as a central processing unit) generate a large amount of heat under a high load, and the large amount of heat may increase the air pressure inside the portable electronic device 100 to be higher than the air pressure of the external environment, which may affect the normal operation of the speaker 90, so that the output of the speaker is distorted. In order to solve the above problem, the event meeting the preset condition may be the activation of the speaker 90, that is, the controller 30 controls the speaker 90 to output the sound. In this way, as long as the controller 30 detects a scene (e.g., voice call, video call) that requires the speaker to be activated, the controller 30 switches the ventilation valve 30 from the normally closed state to the open state, so that air inside and outside the housing 10 can circulate, and air pressure balance between the inside and outside of the housing 10 is achieved. So that the speaker 90 can always operate within the normal air pressure range. It is understood that the event meeting the preset condition is not limited to the foregoing situation, and for example, the preset time may be a duration of a voice call, a video call, and the like, which is beneficial to excluding a scenario where the duration of the voice call, the video call, and the like is short, and the scenario does not generally generate a large amount of heat. The event meeting the predetermined condition may also be other situations that can cause the internal temperature of the portable electronic device 100 to rise rapidly, for example, the portable electronic device 100 plays a video for a predetermined time, the central processing unit runs a game with a high load for a predetermined time, and the like.

In one embodiment, the portable electronic device 100 further comprises an input device 70 electrically connected to the controller 30, the input device 70 being configured to receive user input, which may be a touch screen, mechanical buttons, touch responsive buttons, or the like. The event meeting the preset condition may also be that the controller 30 receives a specific command input by the user through the input device 70. This allows, when the user finds an abnormality, such as the sound volume of the sound outputted from the speaker 90 being significantly lower than the normal sound volume in the past, a command to switch the ventilation valve 30 from the normally closed state to the open state is sent through the input device 70, so that the air inside and outside the housing 10 can be circulated, and the air pressure inside and outside the housing 10 can be balanced.

In one embodiment, the portable electronic device 100 further includes a sensor assembly 80 electrically connected to the controller 30, and the sensor assembly 80 may include various sensors, such as a temperature sensor, an air pressure sensor, and the like. The temperature sensor is used for detecting the temperature inside the shell, and the air pressure sensor is used for detecting the air pressure inside the shell. The controller 30 may monitor the temperature and the air pressure inside the casing 10 based on the outputs of the temperature sensor and the air pressure sensor. The event meeting the preset condition may also be a change in the temperature inside the casing 10 meeting a specific rule, or a change in the air pressure inside the casing 10 meeting a specific rule. Specifically, the change in the temperature inside the casing 10 that satisfies a certain law may be: the temperature value exceeds the preset value, and the speed of temperature rise (temperature rise value per unit time) reaches the preset value. The change in temperature inside the casing 10 that satisfies a certain law may be: the air pressure value exceeds the preset value, and the speed of air pressure rise (temperature rise value in unit time) reaches the preset value. It will be understood that the variation of the temperature/pressure inside the casing 10, which satisfies the specific law, is not limited to the aforementioned case, and can be adjusted according to the actual needs. The above-mentioned technical solution can enable the portable electronic device 100 to perform internal and external air pressure balance in response to the change of the external environment, for example, when the air pressure detected by the air pressure sensor is continuously decreased, the controller 30 can evaluate that the user may move to a high altitude position, and at this time, the controller 30 can switch the ventilation valve 20 to the open state, so that the air inside and outside the housing 10 can circulate, and the output of the air pressure sensor can more accurately reflect the air pressure of the external environment.

Referring again to fig. 4, in response to a specific event, the controller 30 is further configured to control the ventilation valve 20 to switch from the open state to the normally closed state, wherein the specific event includes detecting that liquid enters between the housing 10 and the ventilation valve 20. Specifically, the vent valve 20 further includes a liquid detecting element 60, the liquid detecting element 60 is disposed on the valve body 21 or the moving element 22, and the liquid detecting element 60 is communicated with the outside of the housing 10 for detecting whether liquid enters between the housing 10 and the vent valve 20. Referring to fig. 13, in the present embodiment, the liquid detecting assembly 60 includes two electrodes 61 spaced apart from each other and a resistance detecting unit 62 electrically connected to air, the resistance detecting unit is configured to detect a resistance value between the two electrodes 61, and the controller 30 determines whether liquid enters between the housing 10 and the air permeation valve 20 according to the resistance value between the two electrodes 61.

The working principle of the liquid detection assembly 60 is as follows: normally, the resistance detection unit 61 detects that the resistance value between the electrodes 61 is infinite; when a liquid enters between the housing 10 and the breather valve 20, both the electrodes 61 are in contact with the liquid, and the resistance between the two electrodes 61 is reduced. The controller 30 determines whether or not liquid enters between the housing 10 and the air-permeable valve 20 according to a change in resistance between the electrodes 61. In the present embodiment, the electrode 61 is a wire provided in the housing space 212 (see fig. 3) of the valve body 21. The second through hole 221 and the fourth through hole 253 are located right above the accommodating space 212. The receiving space 212 communicates with the first through hole 12 via the second through hole 221 and the fourth through hole 253. When the night liquid drops flow into the first through hole 12, it can flow into the receiving space 212 through the fourth through hole 253 and the second through hole 221. A part of the electrode 61 is located in the accommodating space 212, and a part of the electrode extends to the inside of the housing 10 through the bottom of the accommodating space 212 and is connected to the resistance detection unit 61. In this way, when the liquid flowing into the receiving space 212 contacts both the electrodes 61, the controller 30 can detect that the liquid flows between the housing 10 and the ventilation valve 20 according to the resistance change between the two electrodes 61. According to the scheme, when liquid is detected to flow into the space between the shell 10 and the vent valve 20, the vent valve 20 is switched from the open state to the normally closed state, so that the liquid is prevented from flowing into the shell 10 through the vent valve 20, and electronic elements in the shell 10 are protected. The electrode 61 is provided in the housing space 212 of the valve body 21, and can detect the liquid flowing in from the first through hole 12 relatively accurately because most of the liquid flowing in from the first through hole 12 flows into the housing space 212.

In one embodiment, the housing 10 is provided with sound outlet holes (not shown) for allowing sound output from the speaker 90 to propagate to the outside of the housing 10. Some conventional electronic devices utilize the sound outlet hole of the speaker to passively balance the internal and external air pressures. According to the scheme disclosed by the embodiment of the invention, the inside and outside air pressure balance is actively carried out through the vent valve 20, and the air inside the shell 10 can flow into the outside of the shell 10 through the first through hole 12 or directly pass through the vent valve 20 (in this case, the first through hole 12 is omitted).

The invention further provides a wearable electronic device, which comprises the portable electronic device 100 and a connecting part, wherein the connecting part is connected with the shell 10, and the connecting part is used for detachably connecting the portable electronic device 100 to a preset target. For example, the wearable electronic device is a smart watch, and the connection is a watch band that connects the portable electronic device 100 to the wrist of the user.

Referring to fig. 14, the present invention further provides a method for controlling a portable electronic device 100, including the following steps:

step 101: monitoring whether an event meeting a preset condition occurs or not;

step 201: when an event meeting a preset condition occurs, the controller 30 of the portable electronic device 100 controls the ventilation valve 20 to be switched from the normally closed state to the open state, so as to balance the air pressure inside and outside the housing 10.

According to the method, the portable electronic device can be configured to actively switch the ventilation valve from the normally closed state to the open state, and air pressure balance between the inside and the outside of the portable electronic device can be realized.

The portable electronic device, the wearable electronic device thereof, and the control method disclosed in the embodiments of the present invention are described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present invention, and the description of the embodiments above is only used to help understanding the portable electronic device, the wearable electronic device thereof, the control method thereof, and the core ideas thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A portable electronic device, comprising:

a housing;

a vent valve connected to the housing, a normally closed state of the vent valve preventing communication between air inside the housing and air outside the housing;

a controller electrically connected to the vent valve, the controller for controlling the vent valve to switch from the normally closed state to an open state, thereby allowing communication between air inside the housing and air outside the housing to equalize air pressure inside and outside the housing.

2. The portable electronic device of claim 1, wherein the purge valve comprises a valve body, a moving member, and a driving member;

one of the valve body and the moving part is connected to the shell, and when the ventilation valve is in a normally closed state, the valve body and the moving part are mutually matched to form a sealing state so as to prevent the air inside the shell from communicating with the air outside the shell;

the driving part is electrically connected with the controller and used for driving the moving part, so that at least one part of the moving part moves relative to the valve body, a gap is formed between the valve body and the moving part, and air inside the shell and air outside the shell are allowed to circulate through the gap.

3. The portable electronic device of claim 2, wherein the actuating member is an electromagnet and the moving member includes a magnet, wherein when the electromagnet is energized, a repulsive force is generated between the actuating member and the magnet, and the repulsive force pushes the moving member to generate the gap.

4. The portable electronic device according to claim 3, wherein the moving member further includes a base plate having an elastic deformation capability, the magnet is fixed to the base plate, the base plate and the moving member cooperate with each other to form a sealed state, and the repulsive force pushes the magnet to move and drive the base plate to generate an elastic deformation, so that the gap is formed between the valve body and the moving member.

5. The portable electronic device according to claim 3, wherein the breather valve further comprises an elastic reset member, the moving member further comprises a base plate, the base plate and the moving member are engaged with each other to form a sealed state, the magnet is fixed to the base plate, the repulsive force can push the magnet to move so as to drive the base plate to move in a direction away from the valve body, and the elastic reset member is configured to apply an acting force to the base plate, and the acting force drives the base plate to move to an initial position and to be engaged with the moving member so as to form a sealed state.

6. The portable electronic device of claim 2, wherein the vent valve further comprises an elastic member, the driving member is an electromagnet, the moving member includes an engaging portion capable of being attracted by magnetic force, an attractive force is generated between the driving member and the engaging portion after the driving member is powered on, the attractive force enables the moving member and the valve body to be engaged with each other to form a sealed state, and after the driving member is powered off, the elastic member drives the moving member to move in a direction away from the valve body, so that the gap is generated.

7. The portable electronic device of claim 2, wherein the actuator comprises a linear actuator including a guide and a slider slidable along the guide, the slider contacting the moveable member, the sliding movement driving at least a portion of the moveable member to move relative to the valve body to form a gap between the valve body and the moveable member to allow air inside the housing to communicate with air outside the housing through the gap.

8. The portable electronic device according to any one of claims 2 to 7, wherein the moving member is connected to the housing, the moving member is located between the housing and the valve body, the housing, the moving member, and the valve body are respectively provided with a first through hole, a second through hole, and a third through hole, the first through hole communicates with both the outside of the housing and the second through hole, the third through hole communicates with the inside of the housing, in the normally closed state, the valve body and the moving member cooperate with each other to isolate the third through hole from the second through hole, and in the open state, the third through hole communicates with the second through hole through the gap.

9. The portable electronic device according to any one of claims 2 to 7, wherein the valve body is connected to the housing, the valve body is located between the housing and the movable member, the housing, the movable member, and the valve body are respectively provided with a first through hole, a second through hole, and a third through hole, the first through hole communicates with both the outside of the housing and the third through hole, the second through hole communicates with the inside of the housing, in the normally closed state, the valve body and the movable member cooperate with each other to isolate the third through hole from the second through hole, and in the open state, the third through hole communicates with the second through hole through the gap.

10. The portable electronic device according to any one of claims 2 to 3 and 5 to 7, wherein the valve body is connected to the housing, the housing and the valve body are respectively provided with a first through hole and a third through hole, the first through hole communicates with the outside of the housing, the third through hole communicates with the inside of the housing, the moving member is located in the third through hole, in the normally closed state, the moving member blocks the passage of air through the third through hole, and in the open state, the first through hole and the third through hole communicate.

11. The portable electronic device according to any one of claims 2 to 7, wherein the valve body is provided with a first positioning portion facing the moving member, the moving member is correspondingly provided with a second positioning portion, and the second positioning portion and the first positioning portion cooperate to form the sealing state.

12. The portable electronic device according to claim 11, wherein the first positioning portion is a recess formed in the valve body and communicating with an inside of the housing, and the second positioning portion is a projection provided on a surface of the moving member facing the valve body.

13. The portable electronic device according to any one of claims 2 to 7, wherein the ventilation valve further comprises a valve cover, the valve cover is hermetically connected to the housing, a fourth through hole communicated with the inside of the housing or the outside of the housing is formed on the valve cover, and in the open state, the fourth through hole is communicated with the gap.

14. The portable electronic device according to any one of claims 2 to 7, wherein the housing is provided with a housing chamber communicating with the inside and the outside of the housing, and the ventilation valve is housed in the housing chamber.

15. The portable electronic device of claim 14, further comprising a sealing ring abutting between the breather valve and an inner surface of the receiving cavity.

16. The portable electronic device of claim 14, further comprising a dust screen connected to the housing, wherein the housing is provided with a first through hole communicating with the receiving cavity, and the dust screen covers the first through hole.

17. The portable electronic device of any of claims 2-7, wherein the controller is configured to control the vent valve to switch from the open state to the normally closed state in response to a specific event, wherein the specific event comprises detection of a liquid entering between the housing and the vent valve.

18. The portable electronic device of claim 17, wherein the vent valve further comprises a liquid detection element disposed on the valve body or the movable member, the liquid detection element being in communication with an exterior of the housing for detecting whether liquid is introduced between the housing and the vent valve.

19. The portable electronic device of claim 18, wherein the liquid detection assembly comprises: the gas-permeable valve comprises two electrodes and a resistance detection unit which are mutually spaced, wherein the resistance detection unit is used for detecting the resistance value between the two electrodes, and the controller determines whether liquid enters between the shell and the gas-permeable valve according to the resistance value between the two electrodes.

20. The portable electronic device of claim 19, wherein the valve body further has a receiving space communicating with the outside of the case, and the two electrodes are disposed in the receiving space.

21. Portable electronic device according to any of claims 2-7, further comprising a speaker, wherein the housing is provided with sound outlet holes for allowing sound output by the speaker to propagate outside the housing.

22. Portable electronic device according to any of claims 2-7, further comprising at least one of the following elements: the temperature sensor is used for detecting the temperature inside the shell, the air pressure sensor is used for detecting the air pressure inside the shell, and the input device is used for receiving the input of a user;

the controller responds to an event meeting preset conditions, and controls the ventilation valve to be switched from the normally closed state to the open state, wherein the event meeting the preset conditions is a specific command input by a user through an input device, or changes of the temperature inside the shell and meeting specific rules, or changes of the air pressure inside the shell and meeting specific rules.

23. A wearable electronic device comprising a connection portion and a portable electronic device as claimed in any of claims 1-22, the connection portion being connected to a housing of the portable electronic device, the connection portion being for detachably connecting the portable electronic device to a preset target.

24. A method of controlling the portable electronic device of claim 1, comprising:

monitoring whether an event meeting a preset condition occurs or not;

when an event meeting preset conditions occurs, the controller of the portable electronic device controls the ventilation valve to be switched from the normally closed state to the open state so as to balance the air pressure inside and outside the shell.