Protective film and electronic equipment

Abstract

The utility model provides a protective film and electronic equipment. The protective film comprises an isolating film and a one-way conducting film, wherein the isolating membrane is attached to a to-be-protected through hole, and the one-way conducting membrane is attached to the side, away from the to-be-protected through hole, of the isolating membrane; at least one scratching seam is formed in the one-way conducting film, and when airflow flows outwards from the to-be-protected through hole, the airflow passes through the isolating film and pushes the one-way conducting film located at the scratching seam to be opened; when airflow flows into the to-be-protected through hole from the outside, the isolating membrane is used for preventing the one-way channel membrane at the scratching seam from being opened. According to the utility model, the oil-proof, fog-proof and gas backflow-proof performance at the through hole of the product can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic products, and more specifically, to a protective film and an electronic device provided with the protective film. Background Art

[0002] With the continuous development of electronic products, people's performance requirements for electronic products are getting higher and higher. At present, in order to achieve the waterproof and dustproof effect of electronic products, the commonly used solution is to directly attach a dustproof and waterproof film to the through holes that connect the electronic products to the outside world, so as to prevent foreign objects such as dust and liquid from entering the electronic products.

[0003] However, traditional dustproof and waterproof films are usually thin and there is a risk of damage during long-term use. In severe cases, it may cause product failure. Increasing the thickness of the film will affect the airflow at the through holes and affect the performance of the product. As a result, it is impossible to take into account the contradiction between the reliability of the dustproof and waterproof film and the product performance, which affects the user experience. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a protective film and electronic equipment to solve the problems of existing dustproof and waterproof films being easily damaged, resulting in product failure, and interfering with airflow, resulting in impaired product performance, etc.

[0005] The protective film provided by the utility model comprises an isolation film and a one-way conductive film; wherein the isolation film is attached to the through hole to be protected, and the one-way conductive film is attached to the side of the isolation film away from the through hole to be protected; at least one slit is provided on the one-way conductive film, when the airflow flows outward from the through hole to be protected, the airflow passes through the isolation film and pushes the one-way conductive film located at the slit to open; when the airflow flows from the outside to the through hole to be protected, the isolation film is used to prevent the one-way conductive film at the slit from opening.

[0006] In addition, an optional structural feature is that the isolation membrane and the one-way conductive membrane are adhered to each other via a fixing piece; and a avoidance hole corresponding to the position of the through hole to be protected is provided on the fixing piece.

[0007] In addition, the optional structural feature is that the fixing parts include double-sided adhesive tape, silicone glue, epoxy glue and UV glue.

[0008] In addition, an optional structural feature is that the size of the avoidance hole is larger than the size of the through hole to be protected.

[0009] Furthermore, an optional structural feature is that the isolation membrane includes at least one of a PTFE membrane, an ETFE membrane, a FEP membrane, and a PFA membrane.

[0010] In addition, an optional structural feature is that the unidirectional conductive film includes at least one of a PI film, a PEI film, a PPS film and a PP film.

[0011] In addition, an optional structural feature is that the slits are distributed in the shape of a "one", a "cross", a "meter" or a trident.

[0012] In addition, an optional structural feature is that the isolation film is set at the through hole to be protected by an adhesive piece; the adhesive piece includes double-sided tape, silicone glue, epoxy glue and UV glue.

[0013] In addition, an optional structural feature is that a through hole corresponding to the position of the through hole to be protected is provided on the adhesive piece; and the size of the through hole is consistent with the size of the avoidance hole.

[0014] On the other hand, the utility model further provides an electronic device, comprising a sensor and a protective film arranged at an air outlet of the sensor; wherein the protective film is as described above.

[0015] By utilizing the above-mentioned protective film and electronic equipment, a double-layer membrane structure is set, and at least one slit is set on the one-way conductive film. When the airflow flows outward from the through hole to be protected, the airflow can push the one-way channel membrane located at the slit to open after passing through the isolation membrane, thereby achieving smooth passage of the airflow. When the airflow flows from the outside to the through hole to be protected, the one-way channel membrane at the slit cannot be opened due to the blocking effect of the isolation membrane, thereby effectively preventing oil mist, water vapor, foreign matter, etc. from entering the interior of the product, thereby enhancing product reliability and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other purposes and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the protective film according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 Partial enlargement and exploded view of part A;

[0019] Figure 3 Schematic diagram of a unidirectional conductive film according to an embodiment of the present invention Figure 1 ;

[0020] Figure 4 Schematic diagram of a unidirectional conductive film according to an embodiment of the present invention Figure 2 ;

[0021] Figure 5 Schematic diagram of an electronic product and a protective film according to an embodiment of the utility model Figure 1 ;

[0022] Figure 6 Schematic diagram of an electronic product and a protective film according to an embodiment of the utility model Figure 2 .

[0023] The reference numerals in the above drawings include: one-way conductive film 1, slit 11, fixing member 2, avoidance hole 21, isolation film 3, adhesive member 4, through hole 41, electronic product 5.

[0024] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0025] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0026] In the following description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] In order to solve the problems of existing dustproof and waterproof films being easily damaged, resulting in product failure, and interfering with airflow, resulting in damaged product performance, etc., the utility model provides a protective film and electronic equipment, in which the protective film is arranged as a double-layer membrane structure, and at least one slit is arranged on the one-way conductive membrane therein. When the airflow flows outward from the through hole to be protected, the airflow can push the one-way channel membrane located at the slit to open after passing through the isolation membrane, thereby achieving smooth passage of airflow. When the airflow flows from the outside to the through hole to be protected, the one-way channel membrane at the slit cannot be opened due to the blocking effect of the isolation membrane, thereby effectively preventing oil mist, water vapor, foreign matter, etc. from entering the interior of the product, which can effectively reduce the risk of failure of the protective film and enhance product reliability and user experience.

[0028] In order to describe the protective film and the electronic device in the present invention in detail, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Figure 1 and then Figure 2 The overall schematic structure and the local enlarged schematic structure of the protective film according to the embodiment of the utility model are respectively shown.

[0030] like Figure 1 and Figure 2 As shown together, the protective film of the embodiment of the utility model includes an isolation film 3 and a one-way conductive film 1; wherein, during the use of the protective film, the isolation film 3 is attached to the through hole to be protected, and the one-way conductive film 1 is attached to the side of the isolation film 3 away from the through hole to be protected. In order to achieve the one-way conductive function of the one-way conductive film, at least one slit 11 can be provided thereon. When the airflow flows outward from the through hole to be protected, after the airflow passes through the isolation film 3, it can push the one-way conductive film located at the slit 11 to open outward, so that the internal airflow can be discharged smoothly; and when the airflow flows from the outside to the through hole to be protected, since the isolation film 3 and the one-way conductive film are almost attached, the one-way conductive film at the slit 11 can be blocked by the isolation film 3 so as to prevent external liquid, gas, oil mist, etc. from entering the through hole to be protected, thereby preventing product failure.

[0031] Among them, the isolation membrane 3 and the one-way conductive membrane 1 are glued and fixed by the fixing part 2; and, in order to ensure the airflow at the through hole to be protected, an avoidance hole 21 corresponding to the position of the through hole to be protected can be set on the fixing part 2, so that the isolation membrane 3 and the one-way conductive membrane are partially connected through the fixing part 2. Since the fixing part 2 itself has a certain thickness, the isolation membrane 3 and the one-way conductive membrane are not completely fitted, so that while achieving a protective effect, it can effectively ensure the outflow of internal airflow and prevent external water flow from flowing back into the electronic product at the through hole to be protected.

[0032] As a specific example, the above-mentioned fixing part 2 may include at least one of double-sided tape, silicone glue, epoxy glue and UV glue, and an avoidance hole 21 with a size larger than the through hole to be protected is set on the fixing part 2 to avoid the through hole to be protected, or the fixing part 2 is set on the premise of avoiding the through hole to be protected, and the isolation membrane 3 and the one-way conductive membrane 1 are pasted and fixed.

[0033] In the protective film of the utility model, the isolation film 3 can be at least one of PTFE film, ETFE film, FEP film and PFA film. The specific thickness of the isolation film 3 can be set according to the size and requirements of the through hole to be protected. The isolation film 3 can be a single-layer film or a multi-layer film structure combined with multiple films. In addition, the unidirectional conductive film 1 can be at least one of PI film, PEI film, PPS film and PP film. The unidirectional conductive film 1 can be a single-layer film or a multi-layer film structure combined with multiple films.

[0034] In order to realize the single-phase conduction function of the unidirectional conductive membrane 1, the slit 11 arranged thereon can be arranged to be distributed in the shape of an "I", a "X", a "M" or a trident. The setting of the slit 11 can make the guiding channel membrane closed when it is not affected by external airflow, and the entire unidirectional channel membrane presents a complete planar structure. When the airflow flows outward from one side of the isolation membrane 3, the airflow will push the slit 11 outward to open after passing through the isolation membrane 3, and the airflow is discharged through the opened slit 11. When the airflow flows from one side of the unidirectional channel membrane to the side of the isolation membrane 3, due to the existence of the isolation membrane 3, the slit 11 cannot be opened, thereby effectively blocking external water vapor, oil mist, etc. from passing through the through hole to be protected.

[0035] Specifically, Figure 3 and Figure 4 The structures of the slits on the unidirectional conductive film according to the embodiments of the present invention are shown respectively. Figure 3 The slits 11 in the middle are distributed in a "M" shape. Figure 4 The slits 11 are distributed in a trident shape. The specific position of the slits 11 can be set at a position on the one-way channel membrane corresponding to the through hole to be protected. The shape of the slits 11 can also be deformed in various ways and can be opened in one direction under the action of airflow. The more gaps there are in the slits 11, the easier it is to open when affected by airflow. If the fewer gaps there are in the slits 11, the greater the critical air pressure when it is turned on by airflow. It can be flexibly set according to the size of the through hole to be protected and the conduction requirements, and is not limited to the specific structure shown in the drawings.

[0036] In another specific embodiment of the utility model, during the application of the protective film, the isolation film can be set at the through hole to be protected of the electronic product through the adhesive 4, and the adhesive 4 may include double-sided tape, silicone glue, epoxy glue and UV glue, wherein a through hole 41 corresponding to the position of the through hole to be protected is provided on the adhesive 4, which is used to avoid the position of the through hole to be protected. The size of the through hole 41 on the specific adhesive 4 can be set to be consistent with the size of the avoidance hole 21.

[0037] Specifically, Figure 5 and Figure 6 The schematic structure of the combination of the protective film and the electronic product according to the embodiment of the utility model is shown.

[0038] like Figure 5 and Figure 6 As shown, in the electronic product of the embodiment of the utility model, a protective film is attached to the through hole to be protected. The protective film can be located at the through hole of the shell of the electronic product 5, or it can be located at the air outlet or air inlet of a structural part such as a sensor in the electronic product 5. The one-way air intake or one-way air outlet at the through hole can be achieved by adjusting the setting position of the one-way guide valve.

[0039] As an example, if the isolation membrane side of the protective film is attached to the air outlet of the sensor, the gas inside the sensor can flow out, while preventing external water flow and the like from entering the sensor. If the one-way passage membrane side of the protective film is attached to the air inlet of the electronic product 5, external gas can enter while preventing internal gas from flowing out, thereby achieving one-way conduction and protection.

[0040] Corresponding to the above-mentioned protective film, the utility model also provides an electronic device, including a sensor and a protective film arranged at the air outlet of the sensor; wherein, the isolation film of the protective film is attached to the air outlet of the sensor, and the setting of the protective film can effectively prevent gas backflow, and realize the functions of preventing oil mist, water vapor, foreign matter, etc., thereby solving the problem that when the client blows air into the electronic device, the gas flows through the inside of the product and condenses to produce oil mist and water vapor, which gather inside the sensor and cause the product to fail. In addition, the protective film can also effectively solve the problem that when the electronic device leaks during operation, the liquid enters the sensor from the air outlet surface of the sensor, causing the product to fail.

[0041] Specifically, the embodiments of the electronic device can refer to the description in the above-mentioned protective film embodiments, and will not be described in detail here.

[0042] According to the protective film and electronic device of the utility model, the protective film is set as a double-layer film structure, and at least one slit is set on the one-way conductive film therein. When the airflow flows outward from the through hole to be protected, the airflow can push the one-way channel membrane located at the slit to open after passing through the isolation membrane, so that the airflow can pass through. When the airflow flows from the outside to the through hole to be protected, the one-way channel membrane at the slit cannot be opened due to the blocking effect of the isolation membrane, thereby effectively preventing oil mist, water vapor, foreign matter, etc. from entering the interior of the product, which can effectively reduce the risk of failure of the protective film and enhance the reliability of the product and user experience.

[0043] As described above, the protective film and electronic device according to the utility model are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the protective film and electronic device proposed by the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the attached claims.

Claims

1. A protective film, characterized in that: It includes an isolation film and a unidirectional conductive film; wherein, The isolation film is attached to the through hole to be protected, and the one-way conductive film is attached to a side of the isolation film away from the through hole to be protected; At least one slit is provided on the one-way conductive film. When the airflow flows outward from the through hole to be protected, the airflow passes through the isolation film and pushes the one-way conductive film located at the slit to open. When the airflow flows from the outside into the through hole to be protected, the isolation film is used to prevent the one-way channel film at the slit from opening.

2. The protective film according to claim 1, characterized in that: The isolation film and the one-way conductive film are attached to each other via a fixing member; and The fixing member is provided with an avoidance hole corresponding to the position of the through hole to be protected.

3. The protective film according to claim 2, characterized in that: The size of the avoidance hole is larger than the size of the through hole to be protected.

4. The protective film according to claim 1, characterized in that: The isolation membrane includes at least one of a PTFE membrane, an ETFE membrane, a FEP membrane, and a PFA membrane.

5. The protective film according to claim 1, characterized in that: The one-way conductive film includes at least one of a PI film, a PEI film, a PPS film and a PP film.

6. The protective film according to claim 1, characterized in that: The slits are distributed in the shape of a "one", a "cross", a "meter" or a trident.

7. The protective film according to claim 2, characterized in that: The isolation film is arranged at the through hole to be protected through an adhesive member.

8. The protective film according to claim 7, characterized in that: The adhesive piece is provided with a through hole corresponding to the position of the through hole to be protected; The size of the through hole is consistent with the size of the avoidance hole.

9. An electronic device, characterized in that: It comprises a sensor and a protective film arranged at the air outlet of the sensor; wherein, The protective film is as described in any one of claims 1 to 8.

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