Waterproof assembly and electronic equipment

Abstract

The utility model relates to a waterproof assembly and electronic equipment, the waterproof assembly comprises a waterproof breathable layer and a piezoelectric structure, the waterproof breathable layer is provided with a microporous structure, the piezoelectric structure is fixedly connected to one side of the waterproof breathable layer and avoids part of the microporous structure, the piezoelectric structure is provided with a first terminal and a second terminal, and the first terminal is connected with the second terminal. Under the condition that voltage exists between the first terminal and the second terminal, the piezoelectric structure can stretch or contract in the thickness direction of the waterproof breathable layer under the effect of the inverse piezoelectric effect. The liquid can be quickly evaporated, so that the obstruction of the liquid to the circulation of air at the waterproof breathable layer can be reduced, and the interference of the liquid to the transmission of signals such as sound can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of electronic devices, and in particular, to a waterproof assembly and an electronic device. BACKGROUND

[0002] With the development of technology, users have gradually increased requirements for the waterproof performance of electronic devices.

[0003] In the related art, a waterproof and breathable layer is often arranged at a position of an electronic device, such as a microphone, a loudspeaker, an earpiece, or the like, to reduce the influence of waterproof design on the transmission of signals such as sound while achieving waterproof function.

[0004] However, in the above structure, after liquid enters the position of the opening, the liquid is attached to the outside of the waterproof and breathable layer, thereby hindering the circulation of air at the waterproof and breathable layer, and further interfering with the transmission of signals such as sound. SUMMARY

[0005] The present disclosure provides a waterproof assembly and an electronic device, which can solve the above technical problems in the related art. The technical solution is as follows.

[0006] In a first aspect, a waterproof assembly is provided, which includes a waterproof and breathable layer and a piezoelectric structure.

[0007] The waterproof and breathable layer has a microporous structure.

[0008] The piezoelectric structure is fixedly connected to one side of the waterproof and breathable layer and avoids part of the microporous structure. The piezoelectric structure has a first terminal and a second terminal. When a voltage exists between the first terminal and the second terminal, the piezoelectric structure can be elongated or contracted in the thickness direction of the waterproof and breathable layer under the action of the inverse piezoelectric effect.

[0009] In some possible implementations, the piezoelectric structure is fixed to the middle part of the waterproof and breathable layer.

[0010] In some possible implementations, the piezoelectric structure is annular.

[0011] In some possible implementations, the waterproof and breathable layer includes a breathable part and a connecting part surrounding the breathable part, and the connecting part is fixedly connected with the piezoelectric structure.

[0012] In some possible implementations, the waterproof assembly further includes a support plate fixed between the waterproof and breathable layer and the piezoelectric structure. The support plate has a plurality of breathable micropores, and the plurality of breathable micropores avoid the piezoelectric structure.

[0013] In some possible implementations, the support plate is one of a steel foil, a steel sheet, an aluminum foil, an aluminum sheet, a titanium alloy foil, or a titanium alloy sheet.

[0014] In some possible implementations, the support plate has a thickness of 0.05 mm to 0.3 mm.

[0015] In some possible implementations, the support plate and the waterproof and breathable layer are fixed by a first double-sided adhesive tape, the first double-sided adhesive tape has a thickness of 0.05 mm to 0.2 mm; and / or,

[0016] The support plate and the piezoelectric structure are fixed by a second double-sided adhesive tape, the second double-sided adhesive tape has a thickness of 0.05 mm to 0.2 mm.

[0017] In some possible implementations, the support plate and the waterproof and breathable layer are fixed by a first liquid adhesive, the first liquid adhesive has a thickness of 0.01 mm to 0.03 mm; and / or,

[0018] The support plate and the piezoelectric structure are fixed by a second liquid adhesive, the second liquid adhesive has a thickness of 0.01 mm to 0.03 mm.

[0019] In some possible implementations, the waterproof and breathable layer is a waterproof and breathable film.

[0020] In some possible implementations, the piezoelectric structure is a piezoelectric ceramic.

[0021] In some possible implementations, the piezoelectric structure has a thickness of 0.2 mm to 1 mm.

[0022] In a second aspect, an electronic device is provided, and the electronic device includes the waterproof assembly provided in the first aspect and possible implementations thereof.

[0023] The technical solutions provided by the present disclosure have at least the following beneficial effects:

[0024] In the present disclosure, by applying a rapidly changing voltage between the first terminal and the second terminal, the piezoelectric structure can be rapidly stretched and deformed under the action of the inverse piezoelectric effect, thereby driving the waterproof and breathable layer to vibrate and making the liquid surface attached to the waterproof and breathable layer vibrate to rapidly atomize and evaporate. Thus, the present disclosure can rapidly evaporate the liquid, thereby reducing the obstruction of the liquid to the flow of air at the waterproof and breathable layer, and further reducing the interference of the liquid to the transmission of signals such as sound.

[0025] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0027] Figure 1 is a structural schematic diagram of a waterproof assembly provided by an embodiment of the present disclosure;

[0028] Figure 2 is a structural schematic diagram of a waterproof assembly provided by an embodiment of the present disclosure;

[0029] Figure 3 is a structural schematic diagram of a waterproof assembly provided by an embodiment of the present disclosure;

[0030] Figure 4 is a control schematic diagram of a waterproof assembly provided by an embodiment of the present disclosure;

[0031] Figure 5 is a structural schematic diagram of an electronic device provided by an embodiment of the present disclosure;

[0032] Figure 6 is a structural schematic diagram of an electronic device provided by an embodiment of the present disclosure.

[0033] Reference signs:

[0034] 1, waterproof and breathable layer; 11, breathable part; 12, connecting part;

[0035] 2, piezoelectric structure;

[0036] 3, support plate; 31, breathable micropore;

[0037] 01, earpiece opening; 02, loudspeaker opening; 03, microphone opening; 04, charging interface. DETAILED DESCRIPTION

[0038] In order to make the objects, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.

[0039] It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict. The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0040] An embodiment of the present disclosure provides a waterproof assembly, please refer to Figure 1 or Figure 2The waterproof assembly comprises a waterproof and breathable layer 1 and a piezoelectric structure 2. The waterproof and breathable layer 1 has a microporous structure. The piezoelectric structure 2 is fixedly connected to one side of the waterproof and breathable layer 1 and avoids part of the microporous structure. The piezoelectric structure 2 has a first terminal and a second terminal. When a voltage exists between the first terminal and the second terminal, the piezoelectric structure 2 can be elongated or contracted along the thickness direction of the waterproof and breathable layer 1 under the action of the inverse piezoelectric effect.

[0041] The waterproof assembly provided by the embodiments of the present disclosure can make the piezoelectric structure 2 rapidly stretch and contract under the action of the inverse piezoelectric effect by applying a rapidly changing voltage between the first terminal and the second terminal, so as to drive the waterproof and breathable layer 1 to vibrate and make the liquid surface attached to the waterproof and breathable layer 1 vibrate, so as to rapidly atomize and evaporate the liquid. Thus, the liquid can be rapidly evaporated, so as to reduce the obstruction of the liquid to the air circulation at the waterproof and breathable layer 1, and further reduce the interference of the liquid to the transmission of signals such as sound.

[0042] In addition, the piezoelectric structure 2 can drive the waterproof and breathable layer 1 to vibrate, so as to make the liquid attached to the waterproof and breathable layer 1 vibrate, so as to accelerate the air circulation rate, thereby further accelerating the evaporation speed of the liquid.

[0043] Figure 4 The voltage-time variation curve between the first terminal and the second terminal is shown, where the vertical coordinate is the voltage and the horizontal coordinate is the time. In the Figure 4 , the voltage loaded between the first terminal and the second terminal is a sinusoidal alternating voltage with a magnitude of v max. By adjusting the frequency of the alternating voltage, the frequency of the stretch and contraction of the piezoelectric structure 2 can be adjusted. When the frequency of the alternating voltage is within a certain range, the waterproof and breathable layer 1 vibrates to generate ultrasonic waves. Under the oscillation action of the ultrasonic waves, the liquid molecules on the liquid surface will be split, thereby forming fine particles to atomize and evaporate the liquid. The particle size and evaporation speed are determined according to the frequency of the voltage between the first terminal and the second terminal. Of course, Figure 4 only one possible form of the voltage-time variation curve between the first terminal and the second terminal, and other forms of the voltage-time variation curve are not limited in the present disclosure.

[0044] Optionally, the voltage between the first terminal and the second terminal is controlled by an LC resonant circuit, and the value of v max is 60V.

[0045] The waterproof assembly provided by the embodiments of the present disclosure will be further described below in combination with some drawings.

[0046] In some embodiments, as Figure 1 shown, the piezoelectric structure 2 is fixed to the middle part of the waterproof and breathable layer 1.

[0047] Thus, when the piezoelectric structure 2 shrinks, the waterproof and breathable layer 1 can be vibrated in the middle part of the waterproof and breathable layer 1, so that the vibration consistency of the waterproof and breathable layer 1 in each direction from the middle part to the edge can be improved, and the evaporation effect consistency of the liquid at each position of the edge of the waterproof and breathable layer 1 can be ensured.

[0048] In some embodiments, as shown in Figure 2 The piezoelectric structure 2 is annular.

[0049] Thus, the middle part of the piezoelectric structure 2 is hollow, and the overall size is small, so that more microporous structures can be avoided, and the air permeability of the waterproof and breathable layer 1 can be ensured.

[0050] The annular shape in the piezoelectric structure 2 is annular, for example, but not limited to, a circular ring, a rectangular frame, or an irregularly shaped ring, which is determined by specific use requirements, and the embodiments of the present disclosure do not limit this.

[0051] In some embodiments, as shown in Figure 2 The waterproof and breathable layer 1 includes a breathable part 11 and a connecting part 12 surrounding the breathable part 11, and the connecting part 12 is fixedly connected with the piezoelectric structure 2.

[0052] Thus, the piezoelectric structure 2 is annular and located near the edge of the waterproof and breathable layer 1, so that the shielding of the piezoelectric structure 2 to the microporous structure can be reduced, and the air permeability of the waterproof and breathable layer 1 is hardly affected. Moreover, the piezoelectric structure 2 is annular, so that the vibration at the edge of the waterproof and breathable layer 1 is more consistent, and the vibration at the edge of the waterproof and breathable layer 1 radiates and superimposes to the waterproof and breathable layer 1, so that the middle part of the waterproof and breathable layer 1 also has a good vibration effect. Thus, each part of the liquid on the waterproof and breathable layer 1 has a good vibration effect, so that the evaporation of the liquid can be accelerated.

[0053] In other embodiments, the waterproof and breathable layer 1 includes a first breathable part, a second breathable part, and a first connecting part 12, the first connecting part 12 surrounds the first breathable part, and the second breathable part surrounds the first connecting part 12. Of course, the waterproof and breathable layer 1 can also have other structural forms, and the present disclosure does not limit this.

[0054] In some embodiments, as shown in Figure 3 The waterproof assembly further includes a support plate 3 fixed between the waterproof and breathable layer 1 and the piezoelectric structure 2, the support plate 3 has a plurality of air-permeable micropores 31, and the plurality of air-permeable micropores 31 avoid the piezoelectric structure 2.

[0055] Therefore, by arranging the support plate 3 between the waterproof and breathable layer 1 and the piezoelectric structure 2, in a first aspect, the support plate 3 has a certain rigidity, which can support the waterproof and breathable layer 1 and prevent the waterproof and breathable layer 1 from being damaged; in a second aspect, the support plate 3 can transmit the sound waves generated by the piezoelectric structure 2 to ensure that the sound waves can be well transmitted into the liquid; in a third aspect, when the liquid seeps from the outside of the waterproof and breathable layer 1 to the inside, the support plate 3 can block the liquid to prevent the liquid from further entering the inside of the electronic device; and in a fourth aspect, the support plate 3 has a certain rigidity, and in the case that the piezoelectric structure 2 deforms, the support plate 3 can vibrate with the deformation of the piezoelectric structure 2, thereby driving the waterproof and breathable layer 1 to vibrate, and the vibration effect is better than that of the waterproof and breathable layer 1 arranged alone, and thus the evaporation rate of the liquid can be further improved.

[0056] In some embodiments, the support plate 3 is one of a steel foil, a steel sheet, an aluminum foil, an aluminum sheet, a titanium alloy foil, or a titanium alloy sheet.

[0057] Therefore, the support plate 3 has good rigidity, and the vibration effect of the support plate 3 with the deformation of the piezoelectric structure 2 is good, thereby ensuring that the evaporation rate of the liquid can be further improved.

[0058] In some embodiments, the thickness of the support plate 3 is 0.05 mm-0.3 mm.

[0059] If the thickness of the support plate 3 is less than 0.05 mm, not only the processing difficulty of the support plate 3 will be too great, but also the support, vibration, and sound conduction effects of the support plate 3 will be poor; and if the thickness of the support plate 3 is greater than 0.3 mm, the overall thickness of the waterproof assembly will be too large, thereby wasting the internal space of the electronic device. By setting the thickness of the support plate 3 to be 0.05 mm-0.3 mm, the support plate 3 can have good effects while avoiding having too large a thickness, thereby avoiding the support plate 3 occupying too much internal space of the electronic device, and improving the space utilization of the electronic device.

[0060] Further, the thickness of the support plate 3 can be, for example but not limited to, 0.05 mm, 0.10 mm, 0.15 mm, 0.20 mm, 0.25 mm, or 0.30 mm, and the embodiments of the present disclosure do not limit this.

[0061] In some embodiments, the support plate 3 and the waterproof and breathable layer 1 are fixed by a first double-sided adhesive tape, and the thickness of the first double-sided adhesive tape is 0.05 mm-0.2 mm.

[0062] Therefore, by fixing the support plate 3 and the waterproof and breathable layer 1 by the first double-sided adhesive tape, the fixing difficulty can be reduced and the fixing efficiency can be improved while ensuring the fixing effect.

[0063] If the thickness of the first double-sided adhesive is less than 0.05 mm, the adhesion of the first double-sided adhesive is relatively small, and the adhesion effect is poor. If the thickness of the first double-sided adhesive is greater than 0.2 mm, the thickness of the first double-sided adhesive is too large, thereby causing the overall thickness of the waterproof assembly to be too large, and further causing the internal space of the electronic device to be wasted. By setting the thickness of the first double-sided adhesive to 0.05 mm-0.2 mm, the adhesion effect of the first double-sided adhesive can be ensured, and the first double-sided adhesive can be prevented from having an excessively large thickness, thereby preventing the first double-sided adhesive from occupying too much internal space of the electronic device, and improving the space utilization of the electronic device.

[0064] Further, the thickness of the first double-sided adhesive can be, for example but not limited to, 0.05 mm, 0.10 mm, 0.15 mm, or 0.20 mm, and the embodiments of the present disclosure do not limit this.

[0065] In some embodiments, the support plate 3 and the piezoelectric structure 2 are fixed by a second double-sided adhesive, and the thickness of the second double-sided adhesive is 0.05 mm-0.2 mm.

[0066] In this way, by fixing the support plate 3 and the piezoelectric structure 2 by the second double-sided adhesive, the fixing difficulty can be reduced and the fixing efficiency can be improved under the premise of ensuring the fixing effect.

[0067] If the thickness of the second double-sided adhesive is less than 0.05 mm, the adhesion of the second double-sided adhesive is relatively small, and the adhesion effect is poor. If the thickness of the second double-sided adhesive is greater than 0.2 mm, the thickness of the second double-sided adhesive is too large, thereby causing the overall thickness of the waterproof assembly to be too large, and further causing the internal space of the electronic device to be wasted. By setting the thickness of the second double-sided adhesive to 0.05 mm-0.2 mm, the adhesion effect of the second double-sided adhesive can be ensured, and the second double-sided adhesive can be prevented from having an excessively large thickness, thereby preventing the second double-sided adhesive from occupying too much internal space of the electronic device, and improving the space utilization of the electronic device.

[0068] Further, the thickness of the second double-sided adhesive can be, for example but not limited to, 0.05 mm, 0.10 mm, 0.15 mm, or 0.20 mm, and the embodiments of the present disclosure do not limit this.

[0069] In some embodiments, the support plate 3 and the waterproof and breathable layer 1 are fixed by a first liquid adhesive, and the thickness of the first liquid adhesive is 0.01 mm-0.03 mm.

[0070] In this way, by fixing the support plate 3 and the waterproof and breathable layer 1 by the first liquid adhesive, the thickness of the waterproof assembly can be further reduced under the premise of ensuring the fixing effect, thereby further improving the space utilization of the electronic device.

[0071] If the thickness of the first liquid glue is less than 0.01 mm, the adhesion of the first liquid glue is relatively small, and the adhesion effect is poor. If the thickness of the first liquid glue is greater than 0.03 mm, the thickness of the first liquid glue is too large, thereby causing the overall thickness of the waterproof assembly to be too large, and further causing the internal space of the electronic device to be wasted. By setting the thickness of the first liquid glue to 0.01 mm-0.03 mm, the adhesion effect of the first liquid glue can be ensured, and the thickness of the first liquid glue can be prevented from being too large, thereby preventing the first liquid glue from occupying too much internal space of the electronic device, and improving the space utilization of the internal device.

[0072] Further, the thickness of the first liquid glue can be, for example but not limited to, 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, or 0.03 mm, and the embodiments of the present disclosure do not limit this.

[0073] In some embodiments, the support plate 3 and the piezoelectric structure 2 are fixed by the second liquid glue, and the thickness of the second liquid glue is 0.01 mm-0.03 mm.

[0074] In this way, by fixing the support plate 3 and the piezoelectric structure 2 by the second liquid glue, the thickness of the waterproof assembly can be further reduced under the premise of ensuring the fixing effect, thereby further improving the space utilization of the internal device.

[0075] If the thickness of the second liquid glue is less than 0.01 mm, the adhesion of the second liquid glue is relatively small, and the adhesion effect is poor. If the thickness of the second liquid glue is greater than 0.03 mm, the thickness of the second liquid glue is too large, thereby causing the overall thickness of the waterproof assembly to be too large, and further causing the internal space of the electronic device to be wasted. By setting the thickness of the second liquid glue to 0.01 mm-0.03 mm, the adhesion effect of the second liquid glue can be ensured, and the thickness of the second liquid glue can be prevented from being too large, thereby preventing the second liquid glue from occupying too much internal space of the electronic device, and improving the space utilization of the internal device.

[0076] Further, the thickness of the second liquid glue can be, for example but not limited to, 0.01 mm, 0.015 mm, 0.02 mm, 0.025 mm, or 0.03 mm, and the embodiments of the present disclosure do not limit this.

[0077] In some embodiments, the waterproof and breathable layer 1 is a waterproof and breathable film.

[0078] Optionally, the waterproof and breathable film is made of, for example but not limited to, PTFE (Polytetrafluoroethylene) or PU (Polyurethane) material.

[0079] In some embodiments, the piezoelectric structure 2 is a piezoelectric ceramic.

[0080] Piezoelectric ceramics can be made from materials such as barium titanate-based materials and lead zirconate titanate binary materials.

[0081] In some embodiments, the thickness of the piezoelectric structure 2 is 0.2 mm to 1 mm.

[0082] If the thickness of piezoelectric structure 2 is less than 0.2 mm, its extension and contraction length will be small, making it difficult to drive the waterproof and breathable membrane or support plate 3 to vibrate, resulting in poor liquid evaporation. If the thickness of piezoelectric structure 2 is greater than 1 mm, its thickness will be too large, leading to an excessively thick overall waterproof component and wasting internal space in the electronic device. Setting the thickness of piezoelectric structure 2 to 0.2 mm-1 mm ensures effective liquid evaporation while avoiding excessive thickness, thus preventing it from occupying too much internal space and improving space utilization.

[0083] Based on the same concept, this disclosure also provides an electronic device that includes the waterproof components mentioned above.

[0084] The electronic devices provided in this disclosure can be, but are not limited to, smartphones, tablets, MP3 (Moving Picture Experts Group Audio Layer III) players, MP4 (Moving Picture Experts Group Audio Layer IV) players, TWS (True Wireless) earphones, and laptops.

[0085] In some embodiments, the electronic device is a smartphone, such as Figure 5 , Figure 6 As shown, the smartphone has an earpiece opening 01, a speaker opening 02, a microphone opening 03, and a charging port 04. The earpiece opening 01 is located on one side of the screen, while the speaker opening 02, microphone opening 03, and charging port 04 are located on the side wall of the outer frame. The speaker opening 02 and microphone opening 03 are located at both ends of the charging port 04. The aforementioned waterproof components are provided on the inside of the earpiece opening 01, speaker opening 02, and microphone opening 03.

[0086] Further, after the smartphone is soaked in water, if the liquid is deposited on the waterproof and breathable membrane, the piezoelectric structure 2 can quickly expand and contract to generate ultrasonic waves to quickly evaporate and dry the liquid; if the waterproof and breathable layer fails and the liquid enters the internal part of the smartphone through the opening parts such as the earpiece opening 01, the speaker opening 02, and the microphone opening 03, the piezoelectric structure 2 can cooperate with the support plate 3 and the waterproof and breathable membrane to accelerate the circulation of air, so as to evaporate and discharge the liquid from the whole machine and restore the electrical function of the smartphone.

[0087] In some embodiments, after the smartphone is soaked in water, the user can control the power supply to supply power to the piezoelectric structure 2 through the program to remove the liquid.

[0088] In some other embodiments, a liquid sensor is arranged in the smartphone, and the liquid sensor is arranged in the opening. After the liquid sensor senses the liquid, the liquid sensor sends information to the processor, and the processor controls the power supply to supply power to the piezoelectric structure 2 to remove the liquid.

[0089] In some other embodiments, the electronic device is a TWS (True Wireless) earphone, and the inside of the sound outlet of the TWS earphone is provided with the waterproof assembly mentioned above.

[0090] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise. In addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a reference to the presence of a feature, step, operation, device, component, and / or combinations thereof.

[0091] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship for the purpose of description. The techniques, methods, and devices known to those skilled in the relevant art can not be discussed in detail, but should be considered as part of the specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0092] In the description of the present disclosure, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or positional relationship are generally based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, without the opposite description, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the protection scope of the present disclosure; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component itself.

[0093] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0094] In addition, it should be noted that the use of the words "first", "second" and the like to qualify parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the protection scope of the present disclosure.

[0095] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A waterproof assembly, characterized in that, The waterproof assembly comprises a waterproof and breathable layer (1) and a piezoelectric structure (2); The waterproof and breathable layer (1) has a microporous structure; The piezoelectric structure (2) is fixedly connected to one side of the waterproof and breathable layer (1) and avoids part of the microporous structure, the piezoelectric structure (2) has a first terminal and a second terminal, and under the condition that there is a voltage between the first terminal and the second terminal, the piezoelectric structure (2) can be elongated or contracted along the thickness direction of the waterproof and breathable layer (1) under the action of the inverse piezoelectric effect.

2. The waterproof assembly of claim 1, wherein, The piezoelectric structure (2) is fixed to the middle part of the waterproof and breathable layer (1).

3. The waterproof assembly of claim 1, wherein, The piezoelectric structure (2) is annular.

4. The waterproof assembly of claim 2, wherein, The waterproof and breathable layer (1) comprises a breathable part (11) and a connecting part (12) surrounding the breathable part (11), and the connecting part (12) is fixedly connected with the piezoelectric structure (2).

5. The waterproof assembly of claim 1, wherein, The waterproof assembly further comprises a support plate (3) fixed between the waterproof and breathable layer (1) and the piezoelectric structure (2), and the support plate (3) has a plurality of breathable micropores (31) avoiding the piezoelectric structure (2).

6. The waterproof assembly of claim 5, wherein, The support plate (3) is one of a steel foil, a steel sheet, an aluminum foil, an aluminum sheet, a titanium alloy foil or a titanium alloy sheet.

7. The waterproof assembly of claim 5, wherein, The thickness of the support plate (3) is 0.05mm-0.3mm.

8. The waterproof assembly of claim 5, wherein, The support plate (3) and the waterproof and breathable layer (1) are fixed by a first double-sided adhesive tape, the thickness of the first double-sided adhesive tape is 0.05mm-0.2mm; and / or, The support plate (3) and the piezoelectric structure (2) are fixed by a second double-sided adhesive tape, the thickness of the second double-sided adhesive tape is 0.05mm-0.2mm.

9. The waterproof assembly of claim 5, wherein, The support plate (3) and the waterproof and breathable layer (1) are fixed by a first liquid adhesive, the thickness of the first liquid adhesive is 0.01mm-0.03mm; and / or, The support plate (3) and the piezoelectric structure (2) are fixed by a second liquid adhesive, the thickness of the second liquid adhesive is 0.01mm-0.03mm.

10. The waterproof assembly of any of claims 1-9, wherein, The waterproof and breathable layer (1) is a waterproof and breathable film.

11. The waterproof assembly of any of claims 1-9, wherein, The piezoelectric structure (2) is a piezoelectric ceramic.

12. The waterproof assembly of any of claims 1-9, wherein, The thickness of the piezoelectric structure (2) is 0.2mm-1mm.

13. An electronic device, comprising: The electronic device comprises the waterproof assembly of any one of claims 1-12.

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