Protection assembly and mobile terminal

By combining a transparent or semi-transparent protective plate with a protective shell on the mobile terminal to form a sealed cavity, the sealing and protection problem of modules such as camera components is solved, achieving better protection and visual experience.

CN223829345UActive Publication Date: 2026-01-23纳欣科技有限公司
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Patent Information

Application Number
CN202520016572.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-01-23
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

In existing mobile terminals, the sealing and protection of precision modules or mechanisms such as camera components are not good, making it difficult to interact with the outside world in an interference-free environment.

Method used

A transparent or semi-transparent protective plate is combined with a protective shell to form a sealed receiving cavity. The lens module is fixed inside the protective tube. The outer protective ring and the protective tube are fixed to the protective plate through an adhesive surface to enhance the sealing effect. A base plate and functional components are set inside the receiving cavity to improve the visual effect and prompt function.

Benefits of technology

It improves the sealing and protection of interactive components on the back panel of mobile terminals, simplifies production and assembly, reduces the risk of wear and tear, and enhances visual effects and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection assembly and a mobile terminal, the protection assembly is installed on a back plate of the mobile terminal to protect a fixed lens, and the protection assembly comprises a transparent or semitransparent protection plate, and the protection plate and the back plate are oppositely arranged at an interval; the protective shell comprises a protective cylinder arranged on the lens module in a sleeving manner, an outer protective ring surrounding the protective cylinder and a bottom panel connected with the outer protective ring and the protective cylinder, and the protective cylinder extends to the inner surface close to the protective plate from the bottom surface; the bottom panel, the outer protection ring and the protection plate jointly define a first containing cavity, and the lens module is fixedly arranged on the radial inner side of the protection cylinder. The radial inner side of the outer protection ring is further provided with a first bonding face, the end face, away from the back plate, of the protection cylinder forms a second bonding face, and the protection plate is bonded and fixed through the first bonding face and the second bonding face in the same cylinder. According to the mobile terminal, the transparent protection plate and the bottom panel are arranged at intervals, and the bottom panel is connected with the outer protection ring and the protection cylinder which are used for sealing protection, so that the protection effect on related interaction components in the mobile terminal can be improved.
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Description

Technical Field

[0001] This disclosure generally relates to the field of mobile terminal technology. More specifically, this disclosure relates to a protective component and a mobile terminal. Background Technology

[0002] In common mobile devices such as smartphones and tablets, camera components are frequently used for information interaction with the outside world. These components typically include sophisticated interaction execution modules or mechanisms, such as high-definition camera lenses, various flashes, and range sensors. These modules or mechanisms often need to operate in an interference-free environment and are exposed on the outside of the device to interact directly with the outside world. In existing devices, the protection of such modules or mechanisms is limited to enclosing them with a single protective shell, which is insufficient for providing adequate sealing protection for highly precise modules or mechanisms.

[0003] In view of this, there is an urgent need to provide a protective component for the back panel of mobile terminals in order to improve the sealing and protection of internal components. Utility Model Content

[0004] In order to at least address one or more of the technical problems mentioned above, this disclosure proposes a protective component and a mobile terminal in several aspects.

[0005] In a first aspect, this disclosure provides a protective assembly for mounting on a backplate of a mobile terminal to protect a lens module fixed to the mobile terminal, comprising: a transparent or translucent protective plate, the protective plate being spaced apart from the backplate; and a protective housing, including a protective cylinder fitted onto the lens module, an outer protective ring surrounding the protective cylinder, and a bottom panel connecting the outer protective ring and the protective cylinder, the protective cylinder extending from the bottom panel to an inner surface adjacent to the protective plate; the bottom panel, the outer protective ring, and the protective plate together enclose a first receiving cavity, the lens module being fixedly disposed radially inside the protective cylinder; a first adhesive surface is also provided on the inner side of the outer protective ring, and a second adhesive surface is formed on the end face of the protective cylinder facing away from the backplate, the first adhesive surface and the second adhesive surface being bonded together to fix the protective plate.

[0006] In some embodiments, the protective housing includes a plurality of protective cylinders, with a bottom panel and a back panel stacked and fixedly connected. One axial end of the protective cylinder is fixedly connected to the bottom panel, and the other axial end extends perpendicularly to the bottom panel and is fixedly connected to the protective plate.

[0007] In some embodiments, a first protrusion is provided on the side of the bottom panel facing the protective plate, the first protrusion facing the protective plate and being disposed at a first distance from the protective plate.

[0008] In some embodiments, a substrate is further provided in the first receiving cavity, the substrate is stacked on the side of the bottom panel facing the protective plate, and the substrate and the protective plate are spaced apart by a second distance along the stacking direction.

[0009] In some embodiments, the substrate and the bottom panel define a second receiving cavity along the stacking direction, and a coil assembly is disposed in the second receiving cavity.

[0010] In some embodiments, the substrate has a textured layer of varying thickness on the side opposite to the bottom panel.

[0011] In some embodiments, a groove is provided in the substrate, and a light strip is embedded in the groove.

[0012] In some embodiments, the substrate is further provided with additional surface components, including display components and / or mirrors.

[0013] In some embodiments, the protective plate has a 2.5D or 3D arcuate surface, and the outer protective ring further includes a flange extending away from the back plate in the axial direction of the outer protective ring. The flange is disposed on the radially outer side of the protective plate and is at least flush with the surface of the protective plate in the thickness direction of the protective plate.

[0014] In some embodiments, the outer protective ring includes a transparent portion, one side of which is adjacent to the first receiving cavity and the other side is exposed radially outward.

[0015] In some embodiments, the inner surface of the protective plate facing the bottom panel also has at least one lens portion, the lens portion having a concave or convex surface, the lens portion being opposite to the substrate, or the lens portion having a convex surface with a circular outer contour, and the center of the lens portion being aligned with the axis of the lens module.

[0016] In some embodiments, a plurality of decorative elements are provided within a first receiving cavity, and the positions of the plurality of decorative elements can be changed within the first receiving cavity.

[0017] In a second aspect, this disclosure provides a protective assembly for mounting on a back panel of a mobile terminal to protect a lens module fixed to the mobile terminal, comprising: a transparent or translucent protective plate spaced apart from the back panel; a protective housing fixedly mounted on the back panel and protruding away from the back panel, the protective housing being hollow inside and open toward the protective plate, together with the protective plate enclosing a first receiving cavity; the protective assembly further comprising a step protruding toward the protective plate in the first receiving cavity, a functional component being provided on the side of the step toward the protective plate, the step having a protruding height relative to the protective plate.

[0018] In some embodiments, the functional components include a display component and / or a reflector and / or a light-emitting component and / or a sensor and / or a decorative element.

[0019] In a third aspect, this disclosure provides a mobile terminal including a protective component according to the first aspect and several embodiments.

[0020] In some embodiments, the protective housing includes a protective cylinder sleeved on the lens module and an outer protective ring surrounding the protective cylinder. An indicator light strip is fixedly installed on the mobile terminal body portion radially outside the outer protective ring. The radially outer surface of the outer protective ring is a reflective surface, which is used to allow some light to be irradiated onto the outer surface of the outer protective ring and reflected when the indicator light strip emits light.

[0021] With the protective components provided above, this embodiment of the present disclosure provides a transparent or semi-transparent protective plate, which is spaced apart from the back panel; and a protective housing, including a protective cylinder fitted onto the lens module, an outer protective ring surrounding the protective cylinder, and a bottom panel connecting the outer protective ring and the protective cylinder, with the protective cylinder extending from the bottom surface to the inner surface adjacent to the protective plate; the bottom panel, the outer protective ring, and the protective plate together enclose a first receiving cavity, with the lens fixedly mounted radially inside the protective cylinder; a first adhesive surface is also provided on the radially inside side of the outer protective ring, and a second adhesive surface is formed on the end face of the protective cylinder facing away from the back panel, with the first adhesive surface and the second adhesive surface bonded together to fix the protective plate, thereby enhancing the sealing protection of the interactive components at the back panel of the mobile terminal.

[0022] Furthermore, in some embodiments, by placing a substrate within the first receiving cavity and stacking the substrate on the side of the bottom panel facing the protective plate, with the substrate and the protective plate spaced apart by a second distance along the stacking direction, the protective capability of the protective component can be improved, and the visual effect within the first receiving cavity can be enhanced. Even further, in some embodiments, by embedding a baffle light strip in the substrate, and further providing a second light guide plate on the side of the substrate facing the protective plate, with the second plate and the baffle light strip spaced apart along the thickness direction of the substrate, the notification function of the mobile terminal can be expanded, improving the user experience. Attached Figure Description

[0023] The above and other objects, features, and advantages of exemplary embodiments of this disclosure will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this disclosure are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0024] Figure 1 An exemplary exploded view of the protective components of some embodiments of this disclosure is shown;

[0025] Figure 2 An exemplary perspective view of a protective component according to some embodiments of this disclosure is shown;

[0026] Figure 3 An exemplary cross-sectional view of a protective component according to some embodiments of this disclosure is shown;

[0027] Figure 4 An exemplary perspective view of a protective component according to some embodiments of this disclosure is shown;

[0028] Figure 5 for Figure 4 A magnified view of part A in the middle;

[0029] Figure 6 An exemplary perspective view of a protective housing according to some embodiments of this disclosure is shown;

[0030] Figure 7 A partially enlarged view of the first receiving cavity portion of the protective assembly according to some embodiments of this disclosure is shown;

[0031] Figure 8 An exemplary perspective view of a protective component according to some embodiments of this disclosure is shown;

[0032] Figure 9 An exemplary perspective view of a mobile terminal according to some embodiments of this disclosure is shown.

[0033] Explanation of reference numerals in the attached figures:

[0034] 10-Protective plate; 100-Protective component; 20-Protective housing; 200-Mobile terminal; 21-Outer protective ring; 211-Flange; 22-Protective cylinder; 221-First protective cylinder; 222-Second protective cylinder; 223-Third protective cylinder; 224-Fourth protective cylinder; 23-Bottom panel; 231-First boss; 24-Reflective surface; 30-Back plate; 301-Back plate opening; 40-First receiving cavity; 41-Base plate; 411-Baffle light strip; 42-Second light guide plate; 50-Indicator light strip; 60-Coil assembly; 80-Main unit; 90-Lens module. Detailed Implementation

[0035] The technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0036] It should be understood that the terms “comprising” and “including” used in this disclosure and claims indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0037] It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure. As used in this disclosure and claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in this disclosure and claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.

[0038] As used in this specification and claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if [described condition or event] is detected" may be interpreted, depending on the context, as "once determined," "in response to determination," "once [described condition or event] is detected," or "in response to detection of [described condition or event]."

[0039] The specific embodiments disclosed herein will now be described in detail with reference to the accompanying drawings.

[0040] In view of this, the present disclosure provides a protective component that improves the protection of related interactive components inside a mobile terminal by setting a transparent protective plate and a bottom plate with intervals, and connecting the bottom plate to an outer protective ring and a protective cylinder for sealing protection.

[0041] See also Figures 1 to 3 , Figure 1 An exemplary exploded view of the protective components of some embodiments of this disclosure is shown. Figure 2 An exemplary perspective view of a protective component according to some embodiments of this disclosure is shown. Figure 3 An exemplary cross-sectional view of a protective component according to some embodiments of this disclosure is shown, wherein the backplate of a mobile terminal is shown in dashed lines.

[0042] As shown in the figure, the protective component 100 is used to install on the back panel 30 of a mobile terminal such as a mobile phone or tablet to protect multiple interactive components such as lens modules 90 fixed to the back panel 30 of the mobile terminal. The protective component includes a transparent or semi-transparent protective plate 10, which is spaced apart from the back panel 30. The protective component also includes a protective housing 20, which includes a protective cylinder 22 fitted onto the lens module 90, an outer protective ring 21 surrounding the protective cylinder 22, and a bottom panel 23 connecting the outer protective ring 21 and the protective cylinder 22. The protective cylinder 22 extends from the bottom panel 23 to the inner surface adjacent to the protective plate 10. The bottom panel 23, the outer protective ring 21, the protective cylinder 22, and the protective plate 10 together enclose a first receiving cavity 40. The lens module 90 is fixedly disposed on the radially inner side of the protective cylinder 22 and fixed to the main board and / or the middle frame inside the back panel 30 of the mobile terminal. The outer protective ring 21 has a first adhesive surface on the radially inner side of the end opposite to the back plate 30, and the protective cylinder 22 has a second adhesive surface on the end face opposite to the back plate 30. The first adhesive surface and the second adhesive surface are used together to bond and fix the protective plate 10.

[0043] Furthermore, the protective plate 10 has a 2.5D or 3D curved surface, and the outer protective ring 21 also includes a flange 211. The flange 211 extends away from the back plate 30 along the axial direction of the outer protective ring 21. The flange 211 is disposed on the radially outer side of the transparent protective plate 10 and is at least flush with the surface of the transparent protective plate 10 along the thickness direction of the transparent protective plate 10. Thus, the radially inner side of the flange 211 forms a second adhesive surface for fixed connection with the protective plate 10. At the same time, by completely surrounding the outer periphery of the transparent protective plate 10, the outer side of the flange 211 prevents the protective plate 10 from directly contacting the mobile device when it is placed on a flat surface or collides with other objects, thereby reducing the probability of wear or even breakage.

[0044] Specifically, in this embodiment, the back panel 30 is part of the outer shell of the mobile terminal used to cover its various internal components. Its outer periphery is fixedly connected to other parts of the outer shell by means of snap-fit, adhesive, or integral molding. The back panel 30 has a back panel opening 301, through which the aforementioned interactive components such as the lens module 90 are exposed, allowing them to interact with the outside without interference from internal components. The protective plate 10, the protective housing 20, and the back panel 30 of the mobile terminal are stacked sequentially. The protective housing 20 is disposed on the outer periphery of the back panel opening 301 along the stacking direction and fixed relative to the back panel 30, such that the outer protective ring 21 of the protective housing 20 completely surrounds the outer periphery of the back panel opening 301. The protective plate 10 is fixedly connected to the protective housing 20 on the side of the protective housing 20 facing away from the back panel 30 along the stacking direction and seals it. Thus, the protective housing 20 and the protective plate 10 together protect and seal the back panel opening 301, thereby protecting the internal interactive components.

[0045] See also Figure 1 , Figure 3 and Figure 6 , Figure 6 An exemplary perspective view of a protective housing according to some embodiments of this disclosure is shown. The protective plate 10 is generally formed as a circular sheet, and the protective housing 20 is generally flattened and round. The outer protective ring 21 of the protective housing 20 is generally formed as a ring. The bottom panel 23 of the protective housing 20 extends radially inward from the inner side of the annular outer protective ring 21, and its bottom surface facing the back plate 30 is stacked and fixedly connected to the back plate 30. The generally cylindrical protective cylinder 22 is formed by the bottom panel 23 protruding away from the back plate 30 along the stacking direction and extending to the inner surface of the protective plate 10 facing the back plate 30. At the same time, the circumferential outer edge of the protective plate 10 abuts against the radially inner side of the outer protective ring 21 and is fixed to each other. Thus, the protective plate 10, the outer protective ring 21, the bottom panel 23, and the protective cylinder 22 form a first receiving cavity 40. The protective panel 10 is made of transparent or semi-transparent materials such as glass. Through the refraction and projection of this transparent component, the combination of the protective component and the back panel 30 appears thinner and more three-dimensional. The hollow double-layer protective structure formed by the combination of the protective panel 10 and the protective shell 20 not only improves the sealing and protection performance of the internal interactive components, but also reduces the overall weight of the mobile terminal and enhances the user experience.

[0046] See also Figures 3 to 5 , Figure 4 An exemplary perspective view of a protective component according to some embodiments of this disclosure is shown, wherein the protective plate 10 has been removed for clarity of the internal structure. Figure 5 for Figure 4 A partially enlarged schematic diagram of part A. A first annular, inwardly facing adhesive surface is formed on the radially inner side of the end of the outer protective ring 21 facing away from the back plate 30 along the stacking direction. This first adhesive surface can be bonded to the radially outer side of the protective plate with an adhesive, thereby sealing the opening of the outer protective ring 21 facing away from the back plate 30. Furthermore, the number of protective cylinders 22 is set according to the number of interactive components that need to be protected. In this embodiment, a first protective cylinder 221, a second protective cylinder 222, a third protective cylinder 223, and a fourth protective cylinder 224 are provided on the bottom panel 23, spaced apart from each other. One axial end of each protective cylinder 22 is fixedly connected to the bottom panel 23, and the other axial end extends perpendicularly to the bottom panel 23 along the stacking direction facing away from the back plate 30. The end facing away from the back plate 30 has a second adhesive surface, which is used to bond to the inner surface of the protective plate 10 to fix and support the protective plate 10 from the middle. Thus, a sealed first receiving cavity 40 can be formed between the protective plate 10, the outer protective ring 21, the bottom panel 23, and the protective cylinder 22.

[0047] In this embodiment, the bottom panel 23 is further provided with a first protrusion 231 protruding from the back panel 30 toward the transparent protective plate 10 along the stacking direction. The first protrusion 231 and the protective plate 10 are spaced apart by a first distance along the stacking direction. The inner side of the first protrusion 231 is hollow to expand the internal space for accommodating interactive components such as the lens module 90. The first protrusion 231 can form different height differences relative to the bottom panel 23 and other components along the stacking direction within the first accommodating cavity 40 to form a stepped structure with a sense of layering, thereby enhancing the visual depth effect and improving aesthetics.

[0048] Similarly, in some embodiments, the bottom panel further includes multiple second protrusions or more protrusions, the first protrusion and the second protrusions or more protrusions together forming multiple steps protruding toward the protective plate, the multiple steps having different protrusion heights relative to the protective plate. Within the first receiving cavity, functional components are also disposed between the multiple steps and the protective plate. The functional components include one or more of the following: a display assembly, a reflector, a light-emitting component, a sensor, and decorative elements.

[0049] The raised portions of the aforementioned steps are hollow, allowing for more space on the side facing the mobile terminal body. This facilitates the placement of more electronic components and avoids overly dispersed layouts for components such as the lens module and flash. Figure 1 As shown, it includes a lens module 90 and a flash 91. The main parts of the lens module 90 and the flash 91 are both located inside the hollow part of the step, which simplifies the fixed structure, reduces production costs, and makes the mobile terminal layout more compact, which is conducive to the miniaturization of the device.

[0050] In addition, due to Figure 1 The flash 91 and lens module 90 are both small in diameter. If they are set up separately, their small size and high precision make them difficult to align individually during assembly, which is not conducive to improving production efficiency.

[0051] Furthermore, since the stepped surface is higher than the bottom surface, detection components such as ambient light sensors can be installed on it, avoiding the influence of housing components such as the annular outer protective ring 21. By placing the NFC coil inside the stepped portion, the impact of the metal outer protective ring 21 and other housing components on NFC performance can be reduced, and the NFC coil can be placed closer to the card-swiping sensing component, improving its interactive effect.

[0052] Those skilled in the art will understand that although the above description provides a solution for setting the protective plate 10 as a transparent or semi-transparent component, this disclosure does not limit the specific materials of the various components in the protective assembly. For example, in some embodiments not shown, the outer protective ring 21 also includes a transparent portion, one side of which is adjacent to the first receiving cavity 40, and the other side is exposed radially outward. Thus, in addition to being able to observe the first receiving cavity 40 through the transparent protective plate 10 along the aforementioned stacking direction, the user can also observe the interior of the first receiving cavity 40 obliquely or laterally from the radially outward side of the protective assembly. At the same time, this arrangement also allows ambient light to enter the first receiving cavity 40 from the radially outward side of the protective assembly, thereby creating richer light and shadow effects within the first receiving cavity 40, further highlighting the three-dimensionality and depth effect of its internal structure with varying heights.

[0053] Because the protective plate 10 adopts a transparent design, a large number of visually relevant functional components can be installed in the first receiving cavity 40. These functional components are surrounded and protected by the outer protective ring 21 and the protective plate 10 within the first receiving cavity 40, preventing them from being contaminated by the environment. These functional components include, for example, mirrors, light groups, light sensors, distance sensors, and possible decorative elements (undulations, temperature changes, color changes, particulate matter, etc.). While serving a decorative purpose, these functional components can also change their shape or color in response to user operations or information from the mobile phone, thereby further enhancing the corresponding action prompts and enriching the interactive experience.

[0054] Furthermore, according to general usage habits, users will not frequently touch the area covered by the protective component with their fingers. Since the protective plate 10 of the protective component is close to the camera, it is also a part that users often clean and protect. This simplifies the cleaning of transparent parts such as the lens, prevents dust accumulation from deteriorating the image quality, and better ensures its functionality and visual effect.

[0055] Furthermore, mobile terminals typically come with compatible protective cases, which usually avoid the camera area and cover other parts. However, this makes many designs invisible when the case is on. This design cleverly utilizes the characteristics of protective cases. After the mobile terminal is covered with a case, the protective components protrude from the back panel 30, thus protruding from the surface of the case and being displayed from the back of the mobile terminal, improving the mobile terminal's recognizability.

[0056] See also Figure 1 and Figure 3The first receiving cavity 40 also contains a substrate 41, which is stacked on the side of the bottom panel 23 facing the protective plate 10 along the stacking direction, with a second distance separating the substrate 41 and the protective plate 10. This allows the internal projection to produce a more layered visual effect when viewed from the outside, through the projection and refraction of the transparent protective plate 10, and enables the protective component to have a thinner appearance, making the overall appearance of the protective component more harmonious. This is especially noticeable when the internal interactive component is large and protrudes significantly from the back plate 30. Specifically, the substrate 41 is generally plate-shaped, and its outer periphery can be formed to match the radial inner shape of the outer protective ring 21, allowing it to be embedded into the first receiving cavity 40 close to the inner wall of the outer protective ring 21. Meanwhile, the substrate 41 also has multiple clearance openings for avoiding multiple protective cylinders 22 and the first protrusion 231. Thus, while the substrate 41 is embedded in the bottom of the first receiving cavity 40, it can surround or partially surround the outer periphery of multiple protective cylinders 22 and the first protrusion 231, so that its surface and the first protrusion 231 and multiple protective cylinders 22 form a stepped structure with a height difference, further enhancing the visual sense of layering and depth effect.

[0057] Furthermore, the substrate 41 and the bottom panel 23 are spaced a third distance apart along the stacking direction, defining a second receiving cavity between them. A coil assembly 60 is disposed within this second receiving cavity. The coil assembly 60 includes a wireless transmission component, such as an NFC coil, for exchanging information with the outside. By providing this second receiving cavity and making the substrate 41 a non-metallic material, the coil assembly 60 is effectively and compactly positioned on the side of the mobile terminal away from other electronic components, preventing interference from other components inside the mobile terminal. Simultaneously, its signal transmission is not shielded or interfered with by metallic components, resulting in excellent communication performance.

[0058] See also Figure 3 and Figure 5In this embodiment, the substrate 41 has a textured layer of varying thickness on the side facing away from the bottom panel 23. This varying thickness creates an undulating surface texture on the surface of the substrate 41 facing away from the back panel 30. This texture consists of multiple nested concentric circular structures protruding from the surface of the substrate 41, forming a ring-shaped, coil-like pattern. Thus, this surface texture, under the projection and refraction of the transparent protective plate 10, further enhances the sense of layering and depth within the first receiving cavity 40. Further, or optionally, the substrate 41 is at least partially made of a color-changing material. This color-changing material is, for example, an electrochromic material or a fluorescent layer that changes color upon absorbing light. In some embodiments not shown, the textured layer of the substrate 41 is formed by stacking multiple layers, with different layers corresponding to different electrochromic colors. This results in a richer visual effect, further enhancing the user's perception and experience. Simultaneously, the textured layer can also indicate to the user that a coil is located in that area, visually indicating the location of functional components in the mobile terminal. This coil can be a wireless charging coil, or an NFC coil, etc.

[0059] See Figure 7 , Figure 7 A partially enlarged view of the first receiving cavity 40 portion of the protective assembly according to some embodiments of this disclosure is shown, wherein the protective plate 10 has been removed to clearly show the internal structure. In this embodiment, a groove is also provided in the substrate 41, which can be a through groove or a non-through half groove. A baffle light strip 411 is embedded in the groove. A second light guide plate 42 is also provided on the side of the substrate 41 facing the transparent protective plate 10. The second light guide plate 42 and the covering light strip are spaced apart along the thickness direction of the substrate 41. Specifically, the baffle light strip 411 is an arc-shaped or elongated light strip, which is fixedly disposed on the side of the substrate 41 facing away from the back plate 30. The light guide plate is an elongated or arc-shaped plate, which is disposed along the thickness direction of the substrate 41 on the side of the baffle light strip 411 facing away from the back plate 30. Furthermore, the light guide plate and the baffle light strip 411 at least partially overlap, allowing light emitted from the baffle light strip 411 to illuminate the side of the second light guide plate 42 facing the baffle light strip 411 and reflect off its surface, forming uniformly dispersed reflected light that is emitted onto the surface of the substrate 41, thereby creating a soft and uniform lighting effect. In addition, in some embodiments, the baffle light strip 411 can be electrically connected to components such as the control module of a mobile terminal, thereby responding to control signals from the control module of the mobile terminal to turn the light on and off or perform other changes, thus serving as a prompting component to convey information.

[0060] In some embodiments not shown, the inner surface of the protective plate 10 facing the bottom panel 23 also has at least one lens portion, which has a concave or convex surface. This lens portion is used to further refract and transmit the projection within the first receiving cavity 40 at an angle of inclination or variation, allowing the user to observe richer and more varied three-dimensional and depth-of-field effects. Simultaneously, the lens with the convex or concave surface can also allow ambient light to enter the first receiving cavity 40 after being refracted at a certain angle, thereby making the light and shadow effects formed by the different components inside under ambient light more diverse and richer, and able to change accordingly with the angle of the protective component relative to the ambient light, providing the user with a richer visual experience.

[0061] Further or optionally, in some embodiments, the lens portion has a convex surface with a circular outer contour, and the center of the lens portion is aligned with the axis of the lens module 90. Thus, while protecting the lens module 90 assembly, the protective plate 10 can also serve as part of the lens of the lens module 90 assembly, enhancing the shooting effect of the lens module 90 assembly, reducing the axial dimension of the lens module 90 assembly, and consequently reducing the thickness of the mobile terminal, which is beneficial for achieving a thinner mobile terminal.

[0062] Furthermore, in some embodiments not shown, multiple decorative elements are disposed within the first receiving cavity 40, and the positions of these decorative elements can vary within the first receiving cavity. Specifically, the fluid decorative element is a transparent or translucent container filled with a fluid or powdered filler. The fluid may be a single colored fluid, multiple fluids of different colors, or a mixture of multiple solids, fluids, and gases, while the powdered filler may be, for example, a powdered material such as quicksand of different colors. The fluid decorative element may be disposed, for example, on the side of the substrate 41 opposite to the back plate 30, or embedded within the substrate 41, or disposed radially inside the outer protective ring 21, etc. This disclosure does not limit its placement. By providing this fluid decorative element, the flowing material within it can flow due to gravity when the mobile terminal moves, resulting in changes in color or shape, thereby providing the user with a richer visual experience.

[0063] In some embodiments not shown, the substrate 41 is further provided with an additional surface assembly, which includes a display component and / or a reflector. For example, the display component is a screen module, which is electrically connected to components such as the control module of the mobile terminal to display corresponding information, such as time, battery level, and message prompts, in response to control signals from the control module. This forms a secondary screen that displays information on the back of the main screen of the mobile terminal, allowing for easy access to basic information prompts even when the mobile terminal is inverted. Further or optionally, in some other embodiments not shown, the display module includes an LED array composed of multiple independent LED light-emitting units. This LED array is electrically connected to components such as the control module of the mobile terminal and similarly responds to control signals from the control module by controlling the on / off state of the multiple LED light-emitting units to form corresponding patterns or text to convey corresponding information.

[0064] In some other embodiments, the additional surface assembly may also include, or optionally include, a reflector. This reflector is a mirror element facing away from the back plate 30 and towards the protective plate 10, and can be used as a grooming mirror, thus expanding the application scenarios of the mobile terminal. When a coil assembly 60 is provided between the substrate 41 and the bottom panel 23, the display assembly and / or reflector should be offset from the coil assembly 60 along the aforementioned stacking direction to prevent interference with the signal transmission and reception of the coil assembly 60. By placing the display assembly and / or reflector on the substrate 41, the functionality of the mobile terminal can be expanded without adding additional protective components, resulting in a compact structure, ease of use, and significantly improved user experience.

[0065] See Figure 8 , Figure 8 An exemplary perspective view of a mobile terminal according to some embodiments of this disclosure is shown, in which the back panel 30 of the mobile terminal is shown in dashed lines. In this embodiment, an indicator light strip 50 is fixedly disposed on the mobile terminal body portion radially outside the outer protective ring 21, and the radially outer surface of the outer protective ring 21 is a reflective surface 24, which is used to illuminate and reflect part of the light when the light strip emits light. Specifically, the indicator light strip 50 is formed as a ring, which is disposed around the radially outer side of the outer protective ring 21 and fixedly connected to the outer protective ring 21 or the back panel 30. The light strip is electrically connected to the control module of the mobile terminal to change the light in response to the control signal of the control module. The radially outer peripheral surface of the outer protective ring 21 is at least partially configured as a reflective surface 24, and the reflective surface 24 is located on the side of the indicator light strip 50 away from the back panel 30 along the aforementioned stacking direction. As a result, the light emitted by the indicator light strip 50 can be reflected by the outer side of the outer protective ring 21 and dispersed radially outward, thereby enhancing the visibility range of the indicator light strip 50 and making the changes in the indicator light more easily noticed by the user.

[0066] Assuming the mobile terminal is placed on a horizontal surface such as a desktop, when the indicator light strip 50 lights up in response to the control information of the mobile terminal, there is no need to adjust the orientation of the indicator light strip 50. It can also reflect light obliquely with the help of the outer protective ring 21, so that the reflected light can be seen over a wider range. Users do not need to look directly at it, thus avoiding missing important notifications.

[0067] See Figure 9 , Figure 9 An exemplary perspective view of a mobile terminal according to some embodiments of this disclosure is shown. In this embodiment, the mobile terminal 200 includes a host 80, a back panel 30 fixedly disposed on one side of the host 80, and a protective component 100 fixedly disposed on the back panel 30. The back panel 30 has back panel holes for exposing interactive components such as camera components of the host 80, and the protective component 100 is disposed outside the back panel holes to seal and protect the interactive component portion, preventing damage from external objects.

[0068] While numerous embodiments of this disclosure have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and intent of this disclosure. It should be understood that various alternatives to the embodiments of this disclosure described herein may be employed in the practice of this disclosure. The appended claims are intended to define the scope of this disclosure and therefore cover equivalents or alternatives within the scope of these claims.

Claims

1. A protective assembly for mounting on a backplate (30) of a mobile terminal to protect a lens module (90) fixed to the mobile terminal, characterized in that, include: A transparent or semi-transparent protective plate (10) is provided at an interval relative to the back plate (30); And a protective housing (20), including a protective tube (22) fitted onto the lens module (90), an outer protective ring (21) surrounding the protective tube (22), and a bottom panel (23) connecting the outer protective ring (21) and the protective tube (22), the protective tube extending from the bottom panel (23) to the inner surface adjacent to the protective plate (10); The bottom panel (23), the outer protective ring (21), and the protective plate (10) together form a first receiving cavity (40), and the lens module (90) is fixedly disposed on the radial inner side of the protective cylinder (22); The outer protective ring (21) is surrounded by a first adhesive surface on its inner side, and the end face of the protective cylinder facing away from the back plate forms a second adhesive surface. The first adhesive surface and the second adhesive surface are bonded together to fix the protective plate (10).

2. The protective component according to claim 1, characterized in that, The protective housing (20) includes multiple protective cylinders (22), the bottom panel (23) is stacked and fixedly connected to the back panel (30), one axial end of the protective cylinder (22) is fixedly connected to the bottom panel (23), and the other axial end extends perpendicularly to the bottom panel (23) and is fixedly connected to the protective plate (10).

3. The protective component according to claim 1, characterized in that, The bottom panel (23) has a first protrusion (231) on the side facing the protective plate (10). The first protrusion (231) faces the protective plate (10) and is set at a first distance from the protective plate (10).

4. The protective component according to claim 1, characterized in that, The first receiving cavity (40) is further provided with a substrate (41), which is stacked on the side of the bottom panel (23) facing the protective plate (10), and the substrate (41) and the protective plate (10) are separated by a second distance along the stacking direction.

5. The protective component according to claim 4, characterized in that, The substrate (41) and the bottom panel (23) define a second receiving cavity along the stacking direction, and a coil assembly (60) is disposed in the second receiving cavity.

6. The protective component according to claim 4, characterized in that, The substrate (41) has a textured layer of varying thickness on the side opposite to the bottom panel (23).

7. The protective component according to claim 4, characterized in that, The substrate (41) is provided with a groove, and a light strip (411) is also embedded in the groove.

8. The protective component according to claim 4, characterized in that, The substrate is further provided with additional surface components, which include display components and / or reflectors.

9. The protective component according to claim 3, characterized in that, The protective plate (10) has a 2.5D or 3D arcuate surface. The outer protective ring (21) also includes a flange (211). The flange (211) extends away from the back plate (30) along the axial direction of the outer protective ring (21). The flange (211) is disposed on the radial outer side of the protective plate (10) and is at least flush with the plate surface of the protective plate (10) along the thickness direction of the protective plate (10).

10. The protective component according to claim 1, characterized in that, The outer protective ring (21) includes a transparent portion, one side of which is adjacent to the first receiving cavity (40), and the other side is exposed radially outward.

11. The protective component according to claim 1, characterized in that, The inner surface of the protective plate (10) facing the bottom panel (23) also has at least one lens portion, the lens portion having a concave or convex surface, the lens portion being opposite to the substrate, or the lens portion having a convex surface with a circular outer contour, and the center of the lens portion being aligned with the axis of the lens module (90).

12. The protective component according to claim 1, characterized in that, Multiple decorative elements are provided within the first receiving cavity, and the positions of the multiple decorative elements can be changed within the first receiving cavity.

13. A protective assembly for mounting on a backplate (30) of a mobile terminal to protect a lens module (90) fixed to the mobile terminal, characterized in that, include: A transparent or semi-transparent protective plate (10) is provided at an interval relative to the back plate (30); The protective housing (20) is fixedly disposed on the back plate (30) and protrudes away from the back plate (30). The interior of the protective housing (20) is hollow and open towards the protective plate (10), and together with the protective plate (10) encloses the first receiving cavity (40). The protective assembly also includes a step protruding from the first receiving cavity (40) towards the protective plate (10). A functional component is also provided on the side of the step facing the protective plate (10). The step has a protruding height relative to the protective plate (10).

14. The protective component according to claim 13, characterized in that, The functional components include a display component and / or a reflector and / or a light-emitting component and / or a sensor and / or a decorative element.

15. A mobile terminal, characterized in that, Includes the protective components according to any one of claims 1 to 14.

16. The mobile terminal according to claim 15, characterized in that, The protective housing (20) includes a protective tube (22) fitted onto the lens module (90) and an outer protective ring (21) surrounding the protective tube (22). An indicator light strip (50) is fixedly installed on the mobile terminal body part radially outside the outer protective ring (21). The radially outer surface of the outer protective ring (21) is a reflective surface (24) for irradiating and reflecting some light onto the outer surface of the outer protective ring (21) when the indicator light strip (50) emits light.