Protective sleeve

Abstract

The utility model discloses a protective sleeve which comprises a protective frame and a protective film, the inner side of the protective frame is provided with a dispensing surface, the circumferential edge of the protective film and the dispensing surface of the protective frame form a totally-enclosed bonding interface, and a cavity structure for accommodating electronic equipment is defined by the circumferential edge of the protective film and the dispensing surface of the protective frame together. The protective film comprises a film body, an adhesive layer and a composite plastic film layer which are sequentially stacked, the composite plastic film layer comprises an anti-explosion base film and a functional surface treatment layer, and the functional surface treatment layer is bonded with the film body through the adhesive layer. The protective sleeve can provide comprehensive and efficient protection for the electronic equipment, not only can effectively resist collision, scraping and explosion damage, but also can adapt to the use environments of different electronic equipment, has high fitting degree and diversified functions, and meets the use requirements of users in all directions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electronic equipment accessories, in particular to a protective sleeve. BACKGROUND

[0002] With the development of automobile intelligence, the vehicle-mounted central control screen becomes an indispensable part of the car, which integrates navigation, multimedia entertainment, vehicle information display and other functions. However, in the actual use process, the vehicle-mounted central control screen faces many potential risks.

[0003] On the one hand, the car will produce bump and vibration in the driving process, which may cause the central control screen to collide with the surrounding parts, resulting in screen scratch, breakage and other damage. On the other hand, direct sunlight will cause the surface temperature of the central control screen to rise, accelerating the aging of the screen, and strong light reflection will affect the driver's clear observation of the screen content, increasing the driving risk. In addition, in daily use, the fingerprints and stains left by finger touch on the screen will affect the visual effect of the screen.

[0004] The current vehicle-mounted central control screen protection measures on the market are relatively limited. The ordinary protective sleeve often only has basic dustproof and scratchproof functions, which cannot meet the demand for all-round and high-performance protection of the central control screen. Therefore, it is of great practical significance to develop a protective sleeve that can effectively protect the vehicle-mounted central control screen and has multiple practical functions. UTILITY MODEL CONTENT

[0005] Therefore, the utility model aims to provide a protective sleeve that can provide comprehensive and reliable protection for the vehicle-mounted central control screen, effectively prevent the screen from being scratched, collided, radiated and other damages, and has functions such as anti-peep and anti-reflection, improve the visibility and service life of the screen, and provide safer and more comfortable driving experience for the driver.

[0006] The utility model realizes the purpose through the following technical scheme:

[0007] A protective sleeve, comprising a protective frame and a protective film, the inner side of the protective frame is provided with a point gluing surface, the circumferential edge of the protective film forms a fully enclosed adhesive interface with the point gluing surface, and the protective film and the point gluing surface together define a cavity structure for accommodating an electronic device, the protective film comprises a film body, an adhesive layer and a composite plastic film layer which are stacked in sequence, the composite plastic film layer comprises an explosion-proof base film and a functional surface treatment layer, and the functional surface treatment layer is adhered to the film body through the adhesive layer.

[0008] Further, the upper surface and the lower surface of the protective film are respectively provided with a release film layer, the film body is a tempered glass layer, and the upper surface and the lower surface of the tempered glass layer are respectively formed with an anti-fingerprint layer through an electroplating process.

[0009] Further, the thickness of the tempered glass layer is 0.1-0.5mm, and the thickness of the anti-fingerprint layer is 5-10nm.

[0010] Further, the light transmittance of the composite plastic film layer is ≥95%, and the haze is ≤3%.

[0011] Further, the explosion-proof base film is a biaxially stretched PET film, and the thickness is 0.08-1.5mm, and the Young's modulus is ≥4Gpa.

[0012] Further, the functional surface treatment layer comprises an ITO anti-radiation layer with a thickness of 10-20μm, a privacy layer with a thickness of 100-150nm, and an AR anti-reflection layer with a thickness of 100-150nm, which are sequentially stacked, and the AR anti-reflection layer is bonded to the film body through the adhesive layer.

[0013] Further, the sheet resistance of the ITO anti-radiation layer is 80±5Ω / sq, the viewing angle of the privacy layer is ≤60°, and the reflectivity of the AR anti-reflection layer in the visible light band is <0.5%.

[0014] Further, the adhesive layer is made of an acrylic adhesive or a double-sided adhesive tape bonding medium, the thickness of the adhesive layer is 10-30μm, and the adhesive force of the adhesive layer is 1000-1500gf / 25mm.

[0015] Further, the protective frame is a hollow annular structure, the dispensing surface is a recessed portion arranged on the inner side of the protective frame in a surrounding manner, and the dispensing surface is connected to the non-display area of the film body after dispensing.

[0016] Further, the rear end of the protective frame is circumferentially symmetrical with a clamping arm, and the clamping arm comprises a root, a free end and a stress release groove, the root is connected to the protective frame, the free end is connected to the root, and the stress release groove is located in the root.

[0017] Further, the free end is inclined towards the inner side of the protective frame, and the inclination angle is 10°-15°, so as to tightly accommodate the electronic device.

[0018] Further, the protective frame is made of a flexible plastic material or a hard plastic material by integral injection molding.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1、The protective sleeve technical scheme constructs the full-closed protective structure by organically combining the protective frame and the protective film. The protective frame and the peripheral edge of the protective film form a stable full-closed adhesive interface, which jointly encloses a cavity for placing the electronic device. This structure design can effectively resist the invasion of external dust, moisture and the like, provides omnidirectional and dead-angle-free protection for the electronic device, and significantly reduces the risk of damage to the device caused by external environmental factors.

[0021] 2、The protective film adopts a multi-layer composite structure, including a film body, an adhesive layer and a composite plastic film layer. The tempered glass layer and the anti-fingerprint layer of the film body can effectively prevent scratches and reduce fingerprint stains, and improve screen clarity and use experience. The explosion-proof base film in the composite plastic film layer can prevent fragments from splashing when the screen explodes, and the functional surface treatment layer integrates multiple functions such as anti-radiation, anti-peep and anti-reflection, which meets the use requirements of users for electronic devices in different scenarios, such as protecting privacy, reducing radiation hazards and enhancing screen visibility.

[0022] 3、The protective frame is a hollow ring structure, and the glue dispensing surface on the inner side is designed to facilitate stable connection with the protective film. The clamping arm on the rear end periphery enables the protective sleeve to closely fit the electronic device, which not only provides sufficient clamping force to prevent the device from loosening and falling off, but also avoids damage to the clamping arm caused by stress concentration. In addition, the protective frame can be integrally injection molded by using flexible or hard plastic materials, which can provide cushioning or high-strength protection according to different requirements, further enhancing the protection capability and applicability of the protective sleeve for the electronic device. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the protective sleeve of the utility model;

[0024] Figure 2 is Figure 1 the exploded structure schematic diagram of the protective sleeve shown in the figure;

[0025] Figure 3 is Figure 1 the front structure schematic diagram of the protective sleeve shown in the figure;

[0026] Figure 4 is Figure 3 the A-A cross-sectional structure schematic diagram of the protective sleeve shown in the figure;

[0027] Figure 5 is Figure 4 the enlarged structure schematic diagram of the protective sleeve I position shown in the figure;

[0028] Figure 6 is a structure schematic diagram of the protective frame of the utility model;

[0029] Figure 7 is a cross-sectional schematic diagram of the protective film of the utility model;

[0030] Reference signs:

[0031] 10-protective frame; 11-dipping surface; 12-clamping arm; 121-root; 122-free end; 123-stress release groove; 20-protective film; 21-film body; 211-anti-fingerprint layer; 22-adhesive layer; 23-composite plastic film layer; 231-explosion-proof base film; 232-ITO anti-radiation layer; 233-anti-peep layer; 234-AR anti-reflection layer. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be pointed out that the orientations or positional relationships indicated by the terms "vertical direction", "upper", "lower", "horizontal" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] As shown in FIG. 1, Figures 1 to 7 The protective sleeve provided by the embodiments of the present application comprises a protective frame 10 and a protective film 20, and the protective frame 10 and the protective film 20 are adhered, which can be used for vehicle-mounted central control screens, or for other electronic devices.

[0036] As shown in FIG. 1, Figures 1 to 6As shown, in this embodiment, the protective frame 10 is a hollow annular structure, integrally injection molded from flexible or rigid plastic material. In this embodiment, the protective frame 10 is injection molded from rigid PC plastic material, mainly serving to protect the sides and edges of the electronic device, preventing edge damage when the electronic device is subjected to impact. Simultaneously, its annular structure can wrap around the electronic device, providing all-around side protection.

[0037] The inner side of the protective frame 10 is provided with a surrounding adhesive surface 11. The adhesive surface 11 is a recessed part surrounding the inner side of the protective frame 10, which is conducive to better connection with the non-display area of ​​the protective film 20 after adhesive is applied, ensuring the stability and sealing of the connection.

[0038] The protective frame 10 has symmetrically arranged clamping arms 12 at its rear end. Each clamping arm 12 includes a root 121 connected to the protective frame 10, a free end 122 connected to the root 121, and a stress relief groove 123 located at the root 121. The free end 122 is inclined inwards towards the protective frame 10 at an angle of 10°-15°. The stress relief groove 123 releases stress generated by the clamping arm 12 when clamping the electronic device, preventing damage due to stress concentration. The inclined design of the free end 122 allows the clamping arm 12 to better clamp the electronic device, preventing it from falling out of the protective sleeve. When the electronic device is placed into the cavity structure of the protective sleeve, the clamping arm 12 of the protective frame 10 automatically clamps the device. Because the free end 122 of the clamping arm 12 is inclined inwards and elastic, it can closely fit the edge of the electronic device, effectively preventing the device from loosening or falling out.

[0039] like Figures 1 to 7 As shown, in this embodiment, the circumferential edge of the protective film 20 and the adhesive surface 11 of the protective frame 10 form a fully enclosed bonding interface, jointly defining the cavity structure for housing the electronic device. This enclosed design can effectively prevent dust, moisture, etc. from entering the interior of the protective case and causing damage to the electronic device.

[0040] The protective film 20 includes a film body 21, an adhesive layer 22 and a composite plastic film layer 23 stacked in sequence.

[0041] in:

[0042] The film body 21 is a tempered glass layer with a thickness of 0.1-0.5 mm. The tempered glass layer has high hardness, strength and light transmittance, and can protect the screen when the tempered glass layer covers the screen without affecting the use of the screen. Meanwhile, the upper surface and the lower surface of the tempered glass layer are respectively formed with an anti-fingerprint layer 211 through an electroplating process, and the thickness of the anti-fingerprint layer 211 is 5-10 nm. The anti-fingerprint layer 211 can reduce fingerprints and stains left by fingers touching the screen, and maintain the cleanliness and clarity of the screen. Specifically, in the embodiment, the thickness of the tempered glass layer is 0.33 mm, and the thickness of the anti-fingerprint layer 211 is 5 nm.

[0043] The adhesive layer 22 is made of acrylic adhesive or double-sided adhesive tape bonding medium, and has an adhesive force of 1000-1500 gf / 25 mm and a thickness of 10-30 μm. The adhesive layer 22 firmly bonds the film body 21 and the composite plastic film layer 23 together to ensure the integrity and stability of the protective film 20. Specifically, in the embodiment, the adhesive layer 22 is made of acrylic adhesive, has an adhesive force of 1200 gf / 25 mm, and has a thickness of 15 μm. In the embodiment, the acrylic adhesive can be applied only to the non-display area of the circumferential edge of the film body 21 to maintain the high light transmittance of the protective film 20.

[0044] The composite plastic film layer 23 comprises an explosion-proof base film 231 and a functional surface treatment layer. The explosion-proof base film 231 is a biaxially stretched PET film with a thickness of 0.08-1.5 mm and a Young's modulus ≥ 4 Gpa. The biaxially stretched PET film has good flexibility and tensile resistance, and can effectively prevent glass fragments from splashing when the screen of the electronic device explodes, thereby protecting the safety of the user. The functional surface treatment layer is a composite functional structure, which comprises an ITO anti-radiation layer 232 with a thickness of 10-20 μm, a privacy layer 233 with a thickness of 100-150 nm and an AR anti-reflection layer 234 with a thickness of 100-150 nm in sequence, and the AR anti-reflection layer 234 is connected to the film body 21 through the adhesive layer 22. The formation process is as follows:

[0045] A PET film with a thickness of 0.08 mm and a Young's modulus of 4.3 Gpa is selected as the explosion-proof base film 231, the surface of the PET film is subjected to plasma cleaning to remove surface contaminants and improve the surface energy, and then a layer of adhesion promoter such as silane coupling agent is coated on the surface of the PET film to improve the adhesion of the subsequent functional layer;

[0046] An ITO thin film is deposited on the surface of the PET film through a magnetron sputtering process to form an ITO anti-radiation layer 232 with a thickness of 12 μm, and after the deposition is completed, annealing treatment is performed to improve the performance of the thin film, and the sheet resistance value of the ITO anti-radiation layer 232 is 80±5 Ω / sq;

[0047] The ITO anti-radiation layer 232 is coated with ultraviolet light curing resin on the surface, and the peep-proof layer 233 with a micro-prism array structure of 100nm thickness is formed by nano-imprinting technology, and after ultraviolet light curing, the peep-proof layer 233 is firmly combined with the ITO anti-radiation layer 232, and the viewing angle of the peep-proof layer 233 is ≤60°;

[0048] The peep-proof layer 233 is coated with SiO sol on the surface by spin coating, and the AR anti-reflective layer 234 with a thickness of 120nm is formed by heat treatment, and the reflectivity of the AR anti-reflective layer 234 in the visible light band is <0.5%.

[0049] In the embodiment, the ITO anti-radiation layer can reduce the harm of radiation emitted by the electronic device to the human body; the peep-proof layer 233 can limit the visual angle of the screen of the electronic device and protect the privacy of the user; and the AR anti-reflective layer can reduce the screen reflection and improve the visibility of the screen. Finally, the light transmittance of the composite plastic film layer 23 is ≥95%, and the haze is ≤3%, so that the protective film 20 has good optical performance and wear resistance.

[0050] Release film layer: the upper and lower surfaces of the protective film 20 are also provided with a release film layer. The release film layer plays a protective role when the protective film 20 is not used, preventing the surface of the protective film 20 from being scratched or contaminated. When the protective film 20 is used, the release film layer can be torn off. The surface of the release film layer can be provided with a tearable mark to facilitate the user to accurately and conveniently tear off the release film when in use.

[0051] The above only expresses the preferred technical solutions of the utility model, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, and the utility model also intends to include these changes and modifications.

Claims

1. A protective sleeve characterized in that: The protective frame is internally provided with a dot gluing surface, and the peripheral edge of the protective film forms a fully enclosed adhesive interface with the dot gluing surface to jointly define a cavity structure for accommodating an electronic device.

2. The boot of claim 1, wherein: The upper surface and the lower surface of the protective film are further respectively provided with a release film layer, the film body is a tempered glass layer, and the upper surface and the lower surface of the tempered glass layer are respectively formed with an anti-fingerprint layer through an electroplating process.

3. The boot of claim 2, wherein: The thickness of the tempered glass layer is 0.1-0.5 mm, and the thickness of the anti-fingerprint layer is 5-10 nm.

4. The boot of claim 1, wherein: The explosion-proof base film is a biaxially stretched PET film with a thickness of 0.08-1.5 mm and a Young's modulus ≥4 Gpa; the functional surface treatment layer comprises an ITO anti-radiation layer with a thickness of 10-20 μm, a thickness of 100-150 nm, and a thickness of 100-150 nm, and the AR anti-reflection layer is bonded to the film body through the adhesive layer.

5. The protective cover of claim 1, wherein: The light transmittance of the composite plastic film layer is ≥95%, and the haze is ≤3%.

6. The protective sleeve of claim 1, wherein: The adhesive layer is made of acrylic glue or double-sided adhesive tape bonding medium, the thickness of the adhesive layer is 10-30 μm, and the adhesive force of the adhesive layer is 1000-1500 gf / 25 mm.

7. The protective cover of claim 1, wherein: The protective frame is a hollow annular structure, the dot gluing surface is a recess provided on the inner side of the protective frame, and the dot gluing surface is used to connect the non-display area of the film body after dot gluing.

8. The protective cover of claim 1, wherein: The rear end of the protective frame is circumferentially provided with a clamping arm, the clamping arm comprises a root, a free end and a stress release groove, the root of the clamping arm is connected to the protective frame, the free end is connected to the root, and the stress release groove is located at the root.

9. The boot of claim 8, wherein: The free end is inclined towards the inner side of the protective frame, and the inclination angle is 10°-15°, so as to tightly accommodate the electronic device.

10. The boot claimed in any one of claims 1 to 9, characterized in that: The protective frame is made of flexible plastic material or hard plastic material by integral injection molding.

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