Terminal structure assembly and terminal device

Abstract

A terminal structure assembly and a terminal device relate to the technical field of electronics. The terminal structure assembly comprises a lens assembly, a middle frame and a cover plate assembly. Part of the lens assembly is located in a containing groove of the middle frame. The cover plate assembly comprises a first cover plate and a second cover plate. The direction of the optical axis of the lens assembly is the first direction. At least part of the middle frame, at least part of the first cover plate and part of the second cover plate are sequentially connected in the first direction. The first cover plate has a through hole. The second cover plate seals the through hole. The lens assembly is between the second cover plate and the bottom wall of the containing groove. The through hole and the containing groove are communicated. Part of the lens assembly is located in the through hole, so that the length of the lens assembly and the thickness of the first cover plate partially overlap in the first direction. Under the premise of meeting the requirement of accommodating the lens assembly, the thickness of the terminal structure assembly in the first direction is reduced, which is beneficial to the thinning of the terminal structure assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronics, and in particular to a terminal structure assembly and a terminal device. BACKGROUND

[0002] With the rapid development of terminal devices equipped with cameras, requirements are put forward for the imaging quality of the cameras and the portability of the terminal devices. In order to improve the imaging quality of the cameras, the optical system of the camera usually needs to have a large optical length, resulting in an increase in the total length of the camera. In order to improve the portability of the terminal device, it is usually necessary to compress the thickness of the terminal device. When the camera is mounted on the terminal device, the length direction of the camera is the same as the thickness direction of the terminal device, and the terminal device with a smaller thickness is difficult to accommodate the camera with a larger total length. The terminal device equipped with a camera with good imaging quality has a larger thickness, which reduces its portability, and a trade-off needs to be made between the portability of the terminal device and the imaging quality of the camera. SUMMARY

[0003] The present application provides a terminal structure assembly and a terminal device. By providing a through hole at the first cover plate and locating part of the lens assembly in the through hole, the lens assembly and the cover plate assembly partially overlap in the thickness direction, reducing the overall thickness of the lens assembly and the cover plate assembly, and realizing the thinness of the terminal device on the premise of ensuring the length of the lens assembly.

[0004] In a first aspect, the present application provides a terminal structure assembly, comprising: a lens assembly, an optical axis direction of the lens assembly being a first direction; a middle frame having an accommodation slot, part of the lens assembly being located in the accommodation slot; a cover plate assembly comprising a first cover plate and a second cover plate, at least part of the middle frame, at least part of the first cover plate and part of the second cover plate being connected in the first direction in sequence, the first cover plate having a through hole, the through hole and the accommodation slot being in communication, part of the lens assembly being located in the through hole, the second cover plate closing the through hole, the lens assembly being located between the second cover plate and a bottom wall of the accommodation slot.

[0005] The terminal structure assembly provided in the application comprises a lens assembly, a middle frame and a cover plate assembly. The middle frame has a receiving groove, and part of the lens assembly is located in the receiving groove. The lens assembly is fixed to the bottom wall of the receiving groove, so that the middle frame supports and fixes the lens assembly, ensuring the stability of the position of the lens assembly relative to the middle frame. The cover plate assembly comprises a first cover plate and a second cover plate. The middle frame, the first cover plate and the second cover plate are sequentially connected in a first direction. At least part of the middle frame and at least part of the first cover plate are connected. At least part of the first cover plate and part of the second cover plate are connected. This is conducive to ensuring the connection area of the first cover plate and the middle frame and the connection area of the second cover plate and the first cover plate, and further improving the stability of the connection structure of the middle frame and the cover plate assembly. The cover plate assembly and the middle frame have strong impact resistance, and thus the protection capability of the cover plate assembly and the middle frame on the lens assembly is ensured. The cover plate assembly closes the opening of the receiving groove, and the cover plate assembly and the bottom wall of the receiving groove sandwich the lens assembly, further realizing the position fixation of the lens assembly.

[0006] The first cover plate has a through hole, and the second cover plate is connected to the first cover plate and closes the through hole, ensuring the protection capability of the first cover plate and the second cover plate on the lens assembly. Meanwhile, the first cover plate and the second cover plate are connected, so that the external impact force acting on the cover plate assembly can be dispersed to the first cover plate and the second cover plate, improving the impact resistance of the cover plate assembly. Part of the lens assembly extends from the opening of the receiving groove in the first direction and is located in the through hole, so that the length of the lens assembly and the thickness of the first cover plate partially overlap in the first direction. Under the premise of meeting the requirement of the terminal structure assembly for accommodating the lens assembly, the thickness of the terminal structure assembly in the first direction is reduced, which is conducive to realizing the lightness and thinness of the terminal structure assembly and improving the portability of the terminal structure assembly.

[0007] In a possible implementation, the first cover plate has an outer surface, which is a surface of the first cover plate facing away from the middle frame in the first direction. The outer surface has a first groove surrounding the through hole. The first groove is in communication with the through hole and is used for accommodating the second cover plate. The second cover plate is connected to the bottom wall of the first groove. By making the outer surface of the first cover plate have the first groove, the first groove accommodates the second cover plate, so that the thickness of the second cover plate and the depth of the first groove at least partially overlap in the first direction, i.e. the thickness of the second cover plate and the thickness of the first cover plate at least partially overlap in the first direction. The thickness of the cover plate assembly in the first direction is reduced, i.e. the thickness of the terminal structure assembly in the first direction is reduced, which is conducive to realizing the lightness and thinness of the terminal structure assembly.

[0008] In a possible implementation, the outer surface has a protrusion, and the protrusion surrounds the periphery of the first groove. By having the outer surface of the first cover plate have a protrusion, and the protrusion surrounds the periphery of the first groove, the protrusion can limit the second cover plate in a direction perpendicular to the first direction, which helps to improve the stability of the position of the second cover plate.

[0009] In a possible implementation, in the first direction, the height of the second cover plate relative to the bottom wall of the first groove is less than or equal to the height of the protrusion relative to the bottom wall of the first groove. By having the height of the second cover plate relative to the bottom wall of the first groove in the first direction be less than or equal to the height of the protrusion relative to the bottom wall of the first groove, the second cover plate is completely accommodated in the first groove, the side wall of the first groove can better limit the second cover plate, and the stability of the position of the second cover plate is improved.

[0010] In a possible implementation, in the first direction, the distance between the bottom wall of the first groove and the outer surface is less than the height of the second cover plate relative to the bottom wall of the first groove. By having the distance between the bottom wall of the first groove and the outer surface in the first direction be less than the height of the second cover plate relative to the bottom wall of the first groove, the second cover plate protrudes relative to the outer surface of the first cover plate in the first direction, the depth of the first groove in the first direction can be appropriately reduced, the first cover plate has a certain thickness at the first groove, the structural strength of the first cover plate at the first groove is ensured, the impact resistance of the first cover plate is stronger, and the protection capability of the cover plate assembly on the lens assembly is improved.

[0011] In a possible implementation, in the first direction, the thickness of the second cover plate is less than the thickness of the first cover plate, and the hardness of the second cover plate is greater than the hardness of the first cover plate. By having the thickness of the second cover plate be less than the thickness of the first cover plate, and the hardness of the second cover plate be greater than the hardness of the first cover plate, the thickness of the second cover plate is smaller, which facilitates the accommodation and limitation of the second cover plate by the first groove; at the same time, the second cover plate has a certain structural strength in the case of smaller thickness, and the protection capability of the cover plate assembly on the lens assembly is ensured on the premise of reducing the thickness of the cover plate assembly in the first direction.

[0012] In one possible implementation, in the first direction, the surface of the middle frame facing the first cover plate has a second groove, the second groove surrounding the opening of the receiving groove, the second groove communicating with the receiving groove, the second groove for accommodating the first cover plate, and the first cover plate connected to the bottom wall of the second groove. By having the surface of the middle frame facing the first cover plate have a second groove, the second groove surrounding the opening of the receiving groove, and the second groove accommodating the first cover plate, the thickness of the first cover plate and the depth of the second groove at least partially overlap in the first direction, that is, the thickness of the first cover plate and the thickness of the middle frame at least partially overlap in the first direction, reducing the thickness of the terminal structure assembly in the first direction, which is beneficial for achieving a thinner and lighter terminal structure assembly.

[0013] In one possible implementation, the projection of the second cover plate in the first direction and the projection of the middle frame in the first direction partially overlap. By making the projections of the second cover plate and the middle frame in the first direction partially overlap, the middle frame can indirectly support the second cover plate in the first direction. Since both the middle frame and the first cover plate are used to support the second cover plate, this helps to improve the stability of the second cover plate's position.

[0014] Secondly, this application also provides a terminal device, including a terminal structure component and a screen as described in any of the embodiments of the first aspect above, wherein at least a portion of the screen and at least a portion of the middle frame are connected in the first direction, and the screen is located on the side of the middle frame away from the cover plate component. The beneficial effects in this embodiment are similar to those in the above embodiments, and will not be repeated here.

[0015] In one possible implementation, the bottom wall of the receiving slot has a lens aperture, the screen closes the lens aperture, and in the first direction, the surface of the screen facing the mid-frame has a clearance groove, the clearance groove communicating with the lens aperture, the lens assembly protruding from the lens aperture, and a portion of the lens assembly located within the clearance groove. By having the bottom wall of the receiving slot have a lens aperture, the surface of the screen facing the mid-frame have a clearance groove, the clearance groove communicating with the lens aperture, the lens assembly protruding from the lens aperture, and a portion of the lens assembly located within the clearance groove, the length of the lens assembly and the thickness of the clearance groove partially overlap in the first direction while still satisfying the requirement for the terminal device to accommodate the lens assembly. This reduces the thickness of the overlapping portion between the lens assembly and the screen in the first direction, thus reducing the overall thickness of the terminal device and facilitating its thinner and lighter design, thereby improving its portability.

[0016] In a possible implementation, the terminal device further includes a sound box module, the sound box module and the middle frame are fixedly connected, the lens assembly has a support, the sound box module has a first abutting portion, the middle frame has a second abutting portion, in the first direction, the support is located between the first abutting portion and the second abutting portion, the first abutting portion abuts against the support along the first direction, and the second abutting portion abuts against the support along the opposite direction of the first direction. By making the terminal device further include the sound box module, the sound box module and the middle frame are fixedly connected, the lens assembly has the support, the sound box module has the first abutting portion, the middle frame has the second abutting portion, the first abutting portion and the second abutting portion respectively apply forces along the first direction to the support, so that the middle frame and the sound box module clampingly fix the lens assembly, and the stability of the position of the lens assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of a terminal structural assembly provided by an embodiment of the present application;

[0018] Figure 2 is Figure 1 is a sectional view of a terminal structural assembly provided by the embodiment shown in FIG. 1 at A-A;

[0019] Figure 3 is Figure 2 is an enlarged view of the terminal structural assembly provided by the embodiment shown in FIG. 1 at a;

[0020] Figure 4 is Figure 3 is an enlarged view of the terminal structural assembly provided by the embodiment shown in FIG. 1 at b;

[0021] Figure 5 is Figure 3 is a sectional structural schematic diagram of a middle frame and cover plate assembly provided by the embodiment shown in FIG. 1;

[0022] Figure 6 is Figure 5 is a sectional view of a middle frame and cover plate assembly provided by the embodiment shown in FIG. 1 at B-B;

[0023] Figure 7 is Figure 1 is an exploded view of a terminal structural assembly provided by the embodiment shown in FIG. 1;

[0024] Figure 8 is a structural schematic diagram of a first cover plate provided by an embodiment of the present application;

[0025] Figure 9 is a side view of the first cover plate and an enlarged view of a part thereof provided by an embodiment of the present application;

[0026] Figure 10is a structural schematic view of a middle frame provided by an embodiment of the present application;

[0027] Figure 11 is Figure 10 is a sectional view of the middle frame provided by the embodiment shown at C-C and a partial enlarged view thereof;

[0028] Figure 12 is a structural schematic view of a terminal device provided by an embodiment of the present application;

[0029] Figure 13 is Figure 12 is a sectional view of the terminal device provided by the embodiment shown at D-D;

[0030] Figure 14 is Figure 13 is an enlarged view of the terminal device provided by the embodiment shown at c;

[0031] Figure 15 is Figure 12 is an exploded view of the terminal device provided by the embodiment shown;

[0032] Figure 16 is a structural schematic view of a terminal device without a first cover plate provided by an embodiment of the present application;

[0033] Figure 17 is Figure 12 is a sectional view of the terminal device provided by the embodiment shown at E-E and a partial enlarged view thereof;

[0034] Figure 18 shows a structural schematic view of a positioning member provided by an embodiment of the present application. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0036] For the convenience of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application will be explained and described below.

[0037] It should be clear that the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work, fall within the scope of protection of the present application.

[0038] The terms used in the embodiments of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0039] It should be understood that the term "and / or" used in this document is merely a description of the same field in the related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0040] Depending on the context, the word "if" as used herein can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0041] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0042] In the description of this application, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0043] In the description of this application, it should be noted that due to manufacturing or assembly errors, there may be slight angular deviations in the design that should be perpendicular or parallel. For example, a deviation within 15 degrees is also considered perpendicular or parallel as described in this embodiment.

[0044] The phrase "within the range" used in this application, unless otherwise specified, includes both endpoints of the range by default. For example, in the range of 1 to 5, it includes the values ​​1 and 5.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] It should be understood that in the present application, "electrical connection" can be understood as physical contact and electrical conduction of components; it can also be understood as a form of connection between different components through a signal-transmissible entity line such as a copper foil or a wire of a printed circuit board (PCB) in a circuit configuration. "Connection" and "connection" can refer to a mechanical connection relationship or a physical connection relationship, for example, A and B are connected or A and B are connected, which means that there is a fastening component (such as a screw, a bolt, a rivet, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0047] With the rapid development of terminal devices equipped with cameras, the imaging quality of the cameras and the portability of the terminal devices are both required.

[0048] In order to improve the imaging quality of the camera and meet better shooting experience, it is required that the optical system of the camera has higher resolution and imaging quality, and it is usually necessary to increase the number of lenses of the optical system or to make the lenses in the optical system have a larger moving range on the optical axis, which all increase the total length of the optical system and eventually lead to the increase of the total length of the camera.

[0049] In order to improve the portability of the terminal device and meet better use experience, it is usually necessary to compress the thickness of the terminal device. When the camera is installed on the terminal device, the extension direction of the optical axis of the optical system of the camera is the same as the thickness direction of the terminal device, so that the length direction of the camera is the same as the thickness direction of the terminal device. It is difficult for a terminal device with smaller thickness to accommodate a camera with larger total length, and the minimum thickness of the terminal device is limited by the size of the total length of the camera, resulting in that the terminal device equipped with a camera with better imaging quality has a larger thickness, which reduces its portability, and a trade-off needs to be made between the portability of the terminal device and the imaging quality of the camera.

[0050] At the same time, in order to mount and protect the camera, a corresponding fixing structure needs to be set to support and connect the camera, and a certain thickness of the shell needs to be set to cover the camera to avoid damage to the camera when it is subjected to external impact force, so as to achieve the protection effect of the camera. The setting of the fixing structure and the shell further increases the thickness of the terminal device at the camera setting position, which is not conducive to meeting the demand for thinness of the terminal device.

[0051] The present application provides a terminal structure assembly 100, please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 shows a structural schematic diagram of the terminal structure assembly 100 provided by the embodiment of the present application, Figure 2 shows Figure 1 the cross-sectional view of the terminal structure assembly 100 at A-A in the embodiment shown inFigure 3 An enlarged view of the terminal structure assembly 100 at a is shown. Figure 2 The terminal structure assembly 100 includes the lens assembly 30, the middle frame 20, and the cover plate assembly 10. The middle frame 20 has a receiving groove 21, and part of the lens assembly 30 is located in the receiving groove 21. The middle frame 20 supports and connects the lens assembly 30 to ensure the stability of the position of the lens assembly 30 relative to the middle frame 20, and to achieve the fixation and protection of the lens assembly 30 by the middle frame 20. The cover plate assembly 10 is connected to one side surface of the middle frame 20, and is used to close the opening of the receiving groove 21. The lens assembly 30 is located between the cover plate assembly 10 and the middle frame 20.

[0052] Please refer to the combination Figure 7 and Figure 10 , Figure 7 An enlarged view of the terminal structure assembly 100 at a is shown. Figure 1 An exploded view of the terminal structure assembly 100 provided by the embodiment is shown. Figure 10 A structural schematic view of the middle frame 20 provided by the embodiment is shown. When the lens assembly 30 is located in the receiving groove 21, the middle frame 20 and the cover plate assembly 10 enclose the lens assembly 30, and together achieve the protection of the lens assembly 30, avoiding damage to the lens assembly 30 when it is subjected to external impact force. At the same time, the inside of the receiving groove 21 forms a sealed space, avoiding the entry of external dust and other substances into the lens assembly 30, and affecting the imaging effect of the lens assembly 30.

[0053] The optical axis of the lens assembly 30 is the symmetry axis of each component in the lens assembly 30. The lens assembly 30 includes a lens, and the optical axis of the lens assembly 30 passes through the spherical center of the lens and is perpendicular to the mirror surface of the lens. At this spherical center point, no deflection occurs between the incident light and the outgoing light of the lens. When the number of lenses in the lens assembly 30 is at least two, the optical axis of the lens assembly 30 passes through the spherical centers of the at least two lenses.

[0054] The extension direction of the optical axis of the lens assembly 30 is the first direction, and the thickness direction of the middle frame 20 is the same as the first direction. One side surface of the middle frame 20 in the first direction (such as the X direction) has the receiving groove 21, and part of the lens assembly 30 is located in the receiving groove 21. The lens assembly 30 is fixed relative to the bottom wall of the receiving groove 21, and there is a spacing distance between the lens assembly 30 and the side wall of the receiving groove 21, which provides a larger space for the receiving of the lens assembly 30 by the receiving groove 21, simplifies the installation of the lens assembly 30 in the receiving groove 21, and is also conducive to avoiding interference between the lens assembly 30 and the side wall of the receiving groove 21. Figure 2 and Figure 3 One side surface of the middle frame 20 in the first direction (such as the X direction) has the receiving groove 21, and part of the lens assembly 30 is located in the receiving groove 21. The lens assembly 30 is fixed relative to the bottom wall of the receiving groove 21, and there is a spacing distance between the lens assembly 30 and the side wall of the receiving groove 21, which provides a larger space for the receiving of the lens assembly 30 by the receiving groove 21, simplifies the installation of the lens assembly 30 in the receiving groove 21, and is also conducive to avoiding interference between the lens assembly 30 and the side wall of the receiving groove 21.

[0055] Please refer to the combination Figure 3 and Figure 4 , Figure 4 An enlarged view of the terminal structure assembly 100 at a is shown.Figure 3 An enlarged view of the terminal structure assembly provided by the embodiment at b is shown. The cover plate assembly 10 includes a first cover plate 11 and a second cover plate 12, the first cover plate 11 is located at one side of the middle frame 20 in the first direction, the second cover plate 12 is located at one side of the first cover plate 11 away from the middle frame 20 in the first direction, and the middle frame 20, the first cover plate 11 and the second cover plate 12 are sequentially connected in the first direction. At least a part of the middle frame 20 is connected with at least a part of the first cover plate 11, the projection area of the first cover plate 11 in the first direction is less than or equal to the projection area of the middle frame 20 in the first direction, and at the same time, the projection of the first cover plate 11 in the first direction is located within the projection range of the middle frame 20 in the first direction, or the projection of the first cover plate 11 in the first direction and the projection of the middle frame 20 in the first direction completely coincide.

[0056] In an embodiment, the projection area of the first cover plate 11 in the first direction is less than the projection area of the middle frame 20 in the first direction, the projection of the first cover plate 11 in the first direction is located within the projection range of the middle frame 20 in the first direction, and in the direction perpendicular to the first direction, the first cover plate 11 and the four peripheral edges of the middle frame 20 all have a spacing distance (see Figure 1 ). Avoiding the first cover plate 11 protruding from the four peripheral edges of the middle frame 20 is conducive to improving the aesthetics of the terminal structure assembly 100. When the first cover plate 11 protrudes from the four peripheral edges of the middle frame 20, the protruding part of the first cover plate 11 is more likely to collide with the outside world. Therefore, by making the first cover plate 11 and the four peripheral edges of the middle frame 20 all have a spacing distance, it is also conducive to improving the service life of the first cover plate 11, avoiding the collision between the first cover plate 11 and the outside world affecting the stability of the connection between the first cover plate 11 and the middle frame 20, and further improving the stability of the structure of the terminal structure assembly 100.

[0057] Please refer to Figure 8 , Figure 8 The structure schematic diagram of the first cover plate provided by the embodiment of the application is shown. The first cover plate 11 has a through hole 111, the through hole 111 penetrates the first cover plate 11 along the first direction, the through hole 111 and the accommodating groove 21 are in communication, and part of the lens assembly 30 protrudes from the opening of the accommodating groove 21 in the first direction and is located in the through hole 111, so that part of the lens assembly 30 is located in the accommodating groove 21 of the middle frame 20, and another part of the lens assembly 30 is located in the through hole 111 of the first cover plate 11, and the accommodating groove 21 and the through hole 111 are both used to accommodate the lens assembly 30. In the first direction, the total thickness of the middle frame 20 and the first cover plate 11 is greater than or equal to the length of the lens assembly 30, that is, the middle frame 20 and the first cover plate 11 can accommodate the lens assembly 30.

[0058] In the premise of accommodating the lens assembly 30, the through hole 111 is arranged on the first cover plate 11, the length of the lens assembly 30 and the thickness of the first cover plate 11 partially overlap in the first direction, so that the terminal structural assembly 100 reduces the thickness of the overlapping part of the lens assembly 30 and the first cover plate 11 in the first direction, and the thickness of the terminal structural assembly 100 in the first direction is reduced. Compared with the first cover plate 11 without the through hole 111, the lens assembly 30 is only located in the accommodating groove 21 of the middle frame 20, in order to realize the accommodation of the lens assembly 30, the thickness of the middle frame 20 in the first direction needs to be greater than or equal to the length of the lens assembly 30, which reduces the total thickness of the middle frame 20 and the first cover plate 11 in the first direction, that is, the thickness of the terminal structural assembly 100 in the first direction, which is beneficial to realize the thinning of the terminal structural assembly 100 and improve the portability of the terminal structural assembly 100.

[0059] In some embodiments, the lens assembly 30 has a spacing distance from the inner wall of the through hole 111, which provides more space for the accommodation of the lens assembly 30 by the through hole 111, simplifies the installation of the first cover plate 11, and avoids interference between the first cover plate 11 and the lens assembly 30.

[0060] In one embodiment, please refer to Figure 5 and Figure 6 , Figure 5 It is shown Figure 3 that the cross-sectional structure of the middle frame 20 and the cover plate assembly 10 provided by the embodiment shown in the figure, Figure 6 It is shown Figure 5 that the cross-sectional view of the middle frame and the cover plate assembly at B-B provided by the embodiment shown in the figure. The area of the through hole 111 is smaller than the area of the opening of the accommodating groove 21, the projection of the edge of the through hole 111 in the first direction (such as Figure 5 X direction) is located within the projection range of the edge of the opening of the accommodating groove 21 in the first direction, and the first cover plate 11 partially covers the opening of the accommodating groove 21 (please refer to Figure 6 ), the edges of the through hole 111 protrude from the edges of the opening of the accommodating groove 21 in the direction perpendicular to the first direction, so as to improve the uniformity of the coverage of the opening of the accommodating groove 21 by the first cover plate 11.

[0061] Exemplarily, please refer to Figure 6 , the shape of the through hole 111 and the shape of the opening of the accommodating groove 21 are both square, the side length of the through hole 111 is L1, the side length of the opening of the accommodating groove 21 is L2, the through hole 111 and the accommodating groove 21 satisfy the relationship: L1

[0062] By making the area of the through hole 111 smaller than the area of the opening of the accommodating groove 21, the structure of the middle frame 20 and the first cover plate 11 is transitioned near the opening of the accommodating groove 21, and the size of the through hole 111 is appropriately reduced, which is beneficial to improve the structural strength of the first cover plate 11 and ensure that the first cover plate 11 has sufficient impact resistance, i.e., ensure the protection capability of the first cover plate 11 to the lens assembly 30. Exemplarily, the shapes of the through hole 111 and the opening of the accommodating groove 21 are both circular, the centers of the through hole 111 and the opening of the accommodating groove 21 are on the same straight line, the straight line extends in the first direction, and the diameter of the through hole 111 is smaller than the diameter of the opening of the accommodating groove 21.

[0063] Please refer to Figure 3 and Figure 7 The edge of the second cover plate 12 is connected with the first cover plate 11, the central area of the second cover plate 12 encloses the through hole 111, and the second cover plate 12 completely covers the through hole 111 in the first direction. Since the second cover plate 12 corresponds to the through hole 111 in part, the first cover plate 11 is connected with the second cover plate 12 in the part not covering the through hole, and the first cover plate 11 can be connected with the second cover plate 12 entirely or partially. Exemplarily, the projection area of the second cover plate 12 in the first direction is smaller than the projection area of the first cover plate 11 in the first direction, and the part of the first cover plate 11 is connected with the part of the second cover plate 12.

[0064] The area of the second cover plate 12 is greater than or equal to the area of the through hole 111, i.e., the projection area of the second cover plate 12 in the first direction is greater than or equal to the projection area of the edge of the through hole 111 in the first direction, and the projection of the edge of the through hole 111 in the first direction is located within the projection range of the second cover plate 12 in the first direction.

[0065] The edge of the second cover plate 12 enclosing the through hole 111 is connected with the first cover plate 11. In an embodiment, please refer to Figure 5 The area of the second cover plate 12 is greater than the area of the through hole 111, and the second cover plate 12 is connected with the surface of the first cover plate 11 away from the middle frame 20, so that in the first direction (such as Figure 5In the middle X direction, a part of the second cover plate 12 is opposite to the through hole 111, and another part of the second cover plate 12 is opposite to the first cover plate 11. The first cover plate 11 is connected and supports the second cover plate 12, which is conducive to improving the stability of the connection between the second cover plate 12 and the first cover plate 11, and the structure of the cover plate assembly 10 is more stable. The second cover plate 12 is not easy to separate from the first cover plate 11, which ensures the sealing effect of the second cover plate 12 on the through hole 111, so that the sealing of the inside of the accommodating groove 21 is better. It avoids the entry of external dust and other substances into the lens assembly 30, and ensures the imaging effect of the lens assembly 30. At the same time, the impact resistance of the first cover plate 11 and the second cover plate 12 is stronger, and the protection capability of the first cover plate 11 and the second cover plate 12 to the lens assembly 30 is also improved.

[0066] When the second cover plate 12 closes the through hole 111, the lens assembly 30 is located between the second cover plate 12 and the bottom wall of the accommodating groove 21. The second cover plate 12 and the bottom wall of the accommodating groove 21 respectively exert forces along the first direction towards each other on the lens assembly 30. The second cover plate 12 and the bottom wall of the accommodating groove 21 clamp and fix the lens assembly 30. The lens assembly 30 is clamped between the second cover plate 12 and the bottom wall of the accommodating groove 21, which is conducive to further improving the stability of the position of the lens assembly 30.

[0067] The first cover plate 11 and the second cover plate 12 are located on the same side of the lens assembly 30 in the first direction, and the first cover plate 11 and the second cover plate 12 can resist and absorb external impact force, thereby realizing protection of the lens assembly 30. When the terminal structure assembly 100 only includes the first cover plate 11, and the first cover plate 11 is provided with a recess in communication with the accommodating groove 21, part of the lens assembly 30 is located in the accommodating groove 21, and another part of the lens assembly 30 extends from the opening of the accommodating groove 21 in the first direction and is located in the recess on the first cover plate 11, the length of the lens assembly 30 and the thickness of the first cover plate 11 partially overlap in the first direction, and the thickness of the terminal structure assembly 100 in the first direction can also be reduced. However, the thickness of the first cover plate 11 at the recess setting position is small, so that the structural strength of the first cover plate 11 at the recess setting position is low, and the first cover plate 11 is easy to be damaged when subjected to impact; at the same time, there is a problem of stress concentration at the connection between the side wall and the bottom wall of the recess of the first cover plate 11, and the first cover plate 11 is easy to have a notched effect, resulting in poor impact resistance of the first cover plate 11, and thereby the protection ability of the first cover plate 11 to the lens assembly 30 is poor. By making the terminal structure assembly 100 include the first cover plate 11 and the second cover plate 12 connected to each other, the first cover plate 11 is provided with a through hole 111, the second cover plate 12 is connected to the first cover plate 11, and the second cover plate 12 covers the through hole 111, which is not only beneficial to the length of the lens assembly 30 and the thickness of the first cover plate 11 partially overlapping in the first direction, reducing the thickness of the terminal structure assembly 100 in the first direction, but also beneficial to improving the structural strength of the first cover plate 11 and the second cover plate 12, so that the external impact force received by the terminal structure assembly 100 is dispersed to the first cover plate 11 and the second cover plate 12, improving the impact resistance of the first cover plate 11 and the second cover plate 12, and thereby ensuring the protection ability of the first cover plate 11 and the second cover plate 12 to the lens assembly 30.

[0068] The application provides a terminal structure assembly 100, which comprises a lens assembly 30, a middle frame 20 and a cover plate assembly 10. The middle frame 20 has a containing groove 21, and part of the lens assembly 30 is located in the containing groove 21. The lens assembly 30 is fixed with the bottom wall of the containing groove 21, so that the middle frame 20 supports and fixes the lens assembly 30, and the stability of the position of the lens assembly 30 relative to the middle frame 20 is ensured. The cover plate assembly 10 comprises a first cover plate 11 and a second cover plate 12. The middle frame 20, the first cover plate 11 and the second cover plate 12 are sequentially connected in a first direction. At least part of the middle frame 20 and at least part of the first cover plate 11 are connected. At least part of the first cover plate 11 and part of the second cover plate 12 are connected. The connection area of the first cover plate 11 and the middle frame 20 and the connection area of the second cover plate 12 and the first cover plate 11 are ensured, so that the stability of the connection structure of the middle frame 20 and the cover plate assembly 10 is improved. The impact resistance of the cover plate assembly 10 and the middle frame 20 is high, so that the protection capability of the cover plate assembly 10 and the middle frame 20 on the lens assembly 30 is ensured. The cover plate assembly 10 seals the opening of the containing groove 21, and the cover plate assembly 10 and the bottom wall of the containing groove 21 clamp the lens assembly 30, so that the position of the lens assembly 30 is further fixed.

[0069] The first cover plate 11 has a through hole 111. The second cover plate 12 is connected with the first cover plate 11 and seals the through hole 111. Therefore, the external impact force on the cover plate assembly 10 can be dispersed to the first cover plate 11 and the second cover plate 12, the impact resistance of the cover plate assembly 10 is improved, and the protection capability of the first cover plate 11 and the second cover plate 12 on the lens assembly 30 is ensured. Part of the lens assembly 30 extends from the opening of the containing groove 21 in the first direction and is located in the through hole 111. Therefore, the length of the lens assembly 30 and the thickness of the first cover plate 11 partially overlap in the first direction. Under the premise of meeting the requirement of the terminal structure assembly 100 on accommodating the lens assembly 30, the thickness of the terminal structure assembly 100 in the first direction is reduced, so that the thinness of the terminal structure assembly 100 is realized, and the portability of the terminal structure assembly 100 is improved.

[0070] In a possible implementation, please refer to Figure 3 , Figure 7 and Figure 8 . The first cover plate 11 has an outer surface 112, which is a surface of the first cover plate 11 facing away from the middle frame 20 in the first direction (for example, the X direction in Figure 3 ). The outer surface 112 has a first groove 113, that is, the opening and the bottom wall of the first groove 113 are oppositely arranged in the first direction.

[0071] The first groove 113 is used for accommodating the second cover plate 12, and the bottom wall of the first groove 113 is connected with the second cover plate 12 and is used for supporting the second cover plate 12. For example, the bottom wall of the first groove 113 can support and connect the second cover plate 12 at the same time. Compared with the side wall of the first groove 113 connecting the second cover plate 12, the bottom wall of the first groove 113 supporting and connecting the second cover plate 12 at the same time is beneficial to simplify the connection process of the second cover plate 12 and the first cover plate 11. At the same time, since the thickness of the first cover plate 11 in the first direction needs to be compressed, the area of the side wall of the first groove 113 is small. If the second cover plate 12 is connected with the side wall of the first groove 113, the connection area of the second cover plate 12 and the first cover plate 11 is small, which is not conducive to the stability of the connection of the second cover plate 12 and the first cover plate 11. Connecting the second cover plate 12 with the bottom wall of the first groove 113 is beneficial to make full use of the space of the first cover plate 11 perpendicular to the first direction, ensure a large connection area of the second cover plate 12 and the first cover plate 11, and further ensure the stability of the connection structure of the second cover plate 12 and the first cover plate 11.

[0072] Please refer to Figure 8 The first groove 113 surrounds the through hole 111, so that the second cover plate 12 can be connected with the bottom wall of the first groove 113 to realize the closure of the through hole 111, which is beneficial to simplify the setting mode of the second cover plate 12. When the first groove 113 surrounds the through hole 111, the side wall of the first groove 113 surrounds the through hole 111, and the side wall of the first groove 113 and the opening edge of the through hole 111 have a distance in the direction perpendicular to the first direction, so that the bottom wall of the first groove 113 has a certain area, which ensures the connection area of the second cover plate 12 and the bottom wall of the first groove 113, and is beneficial to improve the connection stability of the second cover plate 12 and the first cover plate 11 compared with the side wall of the first groove 113 and the inner wall of the through hole 111 being flush.

[0073] The first groove 113 and the through hole 111 are communicated, that is, the through hole 111 is on the bottom wall of the first groove 113, which is beneficial to simplify the setting mode of the first groove 113 and the through hole 111. The second cover plate 12 is connected with the bottom wall of the first groove 113, and at least a part of the second cover plate 12 is located in the first groove 113. In the first direction, the thickness of the second cover plate 12 and the depth of the first groove 113 at least partially overlap, that is, the thickness of the second cover plate 12 and the thickness of the first cover plate 11 at least partially overlap in the first direction, which reduces the thickness of the cover plate assembly 10 in the first direction, that is, reduces the thickness of the terminal structure assembly 100 in the first direction, which is beneficial to realize the lightness and thinness of the terminal structure assembly 100.

[0074] In an embodiment, please refer to Figure 4In the direction perpendicular to the first direction, the sidewall of the second cover plate 12 and the sidewall of the first groove 113 have a spacing distance, which provides more space for the first groove 113 to accommodate the second cover plate 12, provides a reserved gap for the setting error of the first groove 113 and the manufacturing error of the second cover plate 12, avoids that the second cover plate 12 cannot be installed into the first groove 113, and is beneficial to simplify the installation of the second cover plate 12 at the first groove 113. At the same time, it avoids that the sidewall of the second cover plate 12 and the sidewall of the first groove 113 are too close in contact, and when the first cover plate 11 and / or the second cover plate 12 are expanded by heat, the first cover plate 11 and the second cover plate 12 are punched with each other at the contact position, causing damage to the first cover plate 11 and the second cover plate 12. It is beneficial to provide space for moderate deformation of the first cover plate 11 and the second cover plate 12, and improve the service life of the first cover plate 11 and the second cover plate 12.

[0075] In one possible implementation, referring to Figure 3 , Figure 7 , Figure 8 and Figure 9 , Figure 9 a side view of the first cover plate provided by the embodiments of the present application and a partial enlarged view thereof are shown. The first cover plate 11 has a convex portion 114 on the outer surface 112, the convex portion 114 protrudes from the outer surface 112 along the first direction (such as the X direction in Figure 3 ), the convex portion 114 surrounds the periphery of the first groove 113, and the convex portion 114 surrounds the first groove 113 once. When the second cover plate 12 is located in the first groove 113, the convex portion 114 surrounds the second cover plate 12, and the surface of the convex portion 114 close to one side of the first groove 113 encloses the second cover plate 12 in the direction perpendicular to the first direction. The convex portion 114 can limit the second cover plate 12 in the direction perpendicular to the first direction, which is beneficial to improve the stability of the position of the second cover plate 12.

[0076] The convex portion 114 and the first cover plate 11 can be an integral structure. The surface of the convex portion 114 close to one side of the first groove 113 can have a spacing distance with the sidewall of the first groove 113, so that the depth of the first groove 113 is the distance between the bottom wall of the first groove 113 and the outer surface 112 in the first direction; or the surface of the convex portion 114 close to one side of the first groove 113 can constitute the sidewall of the first groove 113, so that the depth of the first groove 113 is the sum of the distance between the bottom wall of the first groove 113 and the outer surface 112 in the first direction and the distance that the convex portion 114 protrudes from the outer surface 112 in the first direction.

[0077] In one embodiment, the surface of the protrusion 114 close to the first groove 113 forms a side wall of the first groove 113, which is conducive to increasing the depth of the first groove 113 in the first direction, and the first groove 113 is used to accommodate the second cover plate 12, so that the thickness of the second cover plate 12 in the first direction can be properly increased, which is conducive to improving the structural strength of the second cover plate 12, enhancing the impact resistance of the second cover plate 12, and further improving the protection capability of the second cover plate 12 to the lens assembly 30. Please refer to Figure 9 The surface of the protrusion 114 away from the first groove 113 can be a smooth arc surface, which is smoothly connected with the surface of the protrusion 114 away from the outer surface 112 and the outer surface 112 on both sides in the first direction, and the arc surface is recessed towards the side close to the outer surface 112, so as to realize the smooth transition in structure between the protrusion 114 and the outer surface 112 of the first cover plate 11, and improve the ornamental and touch feeling of the first cover plate 11.

[0078] In the first direction, the height of the second cover plate 12 relative to the bottom wall of the first groove 113 is the distance between the surface of the second cover plate 12 away from the lens assembly 30 and the bottom wall of the first groove 113 in the first direction, and the height of the protrusion 114 relative to the bottom wall of the first groove 113 is the maximum height of the protrusion 114 protruding from the bottom wall of the first groove 113 in the first direction. When the surface of the protrusion 114 close to the first groove 113 forms a side wall of the first groove 113, the height of the protrusion 114 relative to the bottom wall of the first groove 113 is the depth of the first groove 113.

[0079] In some embodiments, in the first direction, the height of the second cover plate 12 relative to the bottom wall of the first groove 113 can be less than or equal to the height of the protrusion 114 relative to the bottom wall of the first groove 113, so that the second cover plate 12 is completely accommodated in the first groove 113, which is conducive to protecting the second cover plate 12 by the protrusion 114; in other embodiments, the height of the second cover plate 12 relative to the bottom wall of the first groove 113 can also be greater than the height of the protrusion 114 relative to the bottom wall of the first groove 113, so that part of the second cover plate 12 is accommodated in the first groove 113, and another part of the second cover plate 12 extends out of the opening of the first groove 113 in the first direction, which is conducive to reducing the height of the protrusion 114 relative to the bottom wall of the first groove 113, i.e. reducing the height of the protrusion 114 relative to the outer surface 112 of the first cover plate 11, so that the transition between the protrusion 114 and the outer surface 112 of the first cover plate 11 is smoother.

[0080] In one embodiment, please refer to Figure 5 in the first direction (such as the direction of arrow A in FIG. 1), the protrusion 114 is arranged on the outer surface 112 of the first cover plate 11, and the protrusion 114 is arranged on the outer surface 112 of the first cover plate 11 in the first direction (such as the direction of arrow A in FIG. 1), and the protrusion 114 is arranged on the outer surface 112 of the first cover plate 11 in the first direction (such as the direction of arrow A in FIG. 1). Figure 5In the second direction (the middle X direction), the height of the second cover plate 12 relative to the bottom wall of the first groove 113 is H2, the height of the convex portion 114 relative to the bottom wall of the first groove 113 is H3, and the first cover plate 11 and the second cover plate 12 satisfy the relationship H2≤H3, so that the height of the second cover plate 12 relative to the bottom wall of the first groove 113 is less than or equal to the height of the convex portion 114 relative to the bottom wall of the first groove 113. The convex portion 114 is flush with or protrudes from the second cover plate 12 in the first direction, and the convex portion 114 completely encloses the second cover plate 12, so that the convex portion 114 can limit the position of the second cover plate 12, thereby improving the stability of the position of the second cover plate 12.

[0081] Referring to Figure 3 The second cover plate 12 closes the through hole 111, and part of the lens assembly 30 is located in the through hole 111, so that the second cover plate 12 and the lens assembly 30 are arranged opposite to each other in the first direction, and the second cover plate 12 and the lens assembly 30 are in contact. When one side of the cover plate assembly 10 provided with the second cover plate 12 is in contact with the ground or the like, since the convex portion 114 protrudes from the second cover plate 12 in the first direction, the convex portion 114 can be in contact with the ground or the like in priority to the second cover plate 12, thereby reducing the impact on the second cover plate 12, and further reducing the impact on the lens assembly 30 in contact with the second cover plate 12, thereby facilitating the protection of the lens assembly 30. Exemplarily, the surface of the convex portion 114 close to one side of the first groove 113 constitutes a side wall of the first groove 113, the second cover plate 12 is completely accommodated in the first groove 113, and the side wall of the first groove 113 limits the position of the second cover plate 12, thereby improving the stability of the position of the second cover plate 12.

[0082] In a possible implementation, referring to Figure 3 In the first direction, the bottom wall of the first groove 113 and the outer surface 112 of the first cover plate 11 have a spacing distance H1, and the first cover plate 11 and the second cover plate 12 satisfy the relationship H1

[0083] When the thickness of the first cover plate 11 and the second cover plate 12 in the first direction is unchanged, if the second cover plate 12 is not protruding in the first direction compared with the first cover plate 11, the first cover plate 11 needs to be provided with a first groove 113 with a greater depth in the first direction for accommodating the second cover plate 12, and the thickness of the first cover plate 11 at the first groove 113 is reduced, which reduces the structural strength of the first cover plate 11 at the first groove 113.

[0084] In the first direction, the thickness of the first cover plate 11, the thickness of the second cover plate 12, and the distance between the bottom wall of the first groove 113 and the outer surface 112 of the first cover plate 11 can be set according to actual needs to ensure the structural strength of the first cover plate 11 and the second cover plate 12 and avoid the step difference between the second cover plate 12 and the first cover plate 11 being too large to affect the user experience. The step difference between the second cover plate 12 and the first cover plate 11 is the distance in the first direction between the surface of the second cover plate 12 facing away from the first cover plate 11 and the outer surface 112 of the first cover plate 11. When the step difference between the second cover plate 12 and the first cover plate 11 is small, the transition between the second cover plate 12 and the first cover plate 11 is smoother, and a protrusion 114 can not be provided on the outer surface 112 for transition.

[0085] In one embodiment, referring to Figure 5 , the outer surface 112 of the first cover plate 11 has a protrusion 114, the surface of the protrusion 114 close to one side of the first groove 113 constitutes the side wall of the first groove 113, and in the first direction, the distance between the bottom wall of the first groove 113 and the outer surface 112 of the first cover plate 11 is less than the height of the second cover plate 12 relative to the bottom wall of the first groove 113, and the height of the second cover plate 12 relative to the bottom wall of the first groove 113 is less than the height of the protrusion 114 relative to the bottom wall of the first groove 113. The second cover plate 12 is completely accommodated in the first groove 113, and the surface of the protrusion 114 close to one side of the first groove 113 constitutes the side wall of the first groove 113, which not only realizes the transition between the second cover plate 12 and the first cover plate 11, making the side surface of the cover plate assembly 10 provided with the second cover plate 12 smoother, but also utilizes the height of the protrusion 114 protruding from the outer surface 112 in the first direction to limit the second cover plate 12, reduces the depth of the first cover plate 11 at the first groove 113, makes the thickness of the first cover plate 11 at the first groove 113 larger, and ensures the structural strength and impact resistance of the first cover plate 11 at the first groove 113. At the same time, the second cover plate 12 protrudes from the outer surface 112 of the first cover plate 11, and the second cover plate 12 is lower than the protrusion 114, which also makes the protrusion 114 contact the ground or other objects before the second cover plate 12 when the side of the cover plate assembly 10 provided with the second cover plate 12 contacts the ground or other objects, reducing the impact on the second cover plate 12 and facilitating the protection of the lens assembly 30.

[0086] In one embodiment, please refer to Figure 5 and Figure 3 The bottom wall of the first groove 113 is provided with a first adhesive member 261, which is located between the first cover plate 11 and the second cover plate 12, and is used to bond the second cover plate 12 and the first cover plate 11. The first adhesive member 261 has a certain thickness in a first direction. In the first direction, the height of the second cover plate 12 relative to the bottom wall of the first groove 113 is the sum of the thickness of the second cover plate 12 and the thickness of the first adhesive member 261.

[0087] For one possible implementation, please refer to Figure 7 In the first direction, the thickness of the second cover plate 12 is less than the thickness of the first cover plate 11. Compared to a situation where the thickness of the second cover plate 12 is greater than or equal to the thickness of the first cover plate 11, the second cover plate 12 can be completely located within the first groove 113, and the depth of the first groove 113 in the first direction is smaller. This allows the first cover plate 11 to have a certain thickness at the first groove 113, ensuring the structural strength of the first cover plate 11 at the first groove 113. The first cover plate 11 has strong impact resistance, which is beneficial to ensuring the protective capability of the cover plate assembly 10 for the lens assembly 30. At the same time, the smaller thickness of the second cover plate 12 also results in a smaller height of the second cover plate 12 protruding from the outer surface 112 in the first direction. This not only helps to reduce the thickness of the cover plate assembly 10 in the first direction and realize the miniaturization of the terminal structure assembly 100, but also makes the step difference between the first cover plate 11 and the second cover plate 12 smaller. The structural transition between the second cover plate 12 and the first cover plate 11 is smoother, which is beneficial to ensuring that the cover plate assembly 10 has a better appearance and user experience.

[0088] The second cover plate 12 is thinner than the first cover plate 11. In order not to affect the impact resistance of the second cover plate 12, the hardness of the second cover plate 12 is made to be greater than that of the first cover plate 11. This ensures the structural strength of the second cover plate 12 under the condition of smaller thickness. Under the premise of achieving a smaller thickness of the cover plate assembly 10 in the first direction, the protective ability of the cover plate assembly 10 for the lens assembly 30 is guaranteed.

[0089] For one possible implementation, please refer to Figure 10 , Figure 11 , Figure 11 and Figure 10 , Figure 3 It shows Figure 11 The illustrated embodiment provides a cross-sectional view of the middle frame at CC and a partially enlarged view thereof. In the first direction (e.g., ... Figure 10 and Figure 11 In the X direction, the surface of the middle frame 20 facing the first cover plate 11 has a second groove 22, and the opening and bottom wall of the second groove 22 are arranged opposite to each other in the first direction.

[0090] The second groove 22 is used for accommodating the first cover plate 11, and the bottom wall of the second groove 22 is connected with the first cover plate 11 and is also used for supporting the second cover plate 12. Similar to the design of the first groove 113 and the second cover plate 12, compared with the side wall of the second groove 22 connecting the first cover plate 11, the bottom wall of the second groove 22 supports and connects the first cover plate 11 at the same time, which is beneficial to simplify the connection process of the first cover plate 11 and the middle frame 20. At the same time, the middle frame 20 is used for supporting the lens assembly 30 and the cover plate assembly 10, so that the middle frame 20 needs to have a certain thickness in the first direction to ensure the structural strength of the middle frame 20, and the depth of the second groove 22 on the middle frame 20 in the first direction is limited, resulting in that the area of the side wall of the second groove 22 is small, and if the first cover plate 11 is connected with the side wall of the second groove 22, the connection area of the first cover plate 11 and the middle frame 20 is small, which is not conducive to the stability of the connection of the first cover plate 11 and the middle frame 20. Connecting the first cover plate 11 and the bottom wall of the second groove 22 is beneficial to make full use of the space of the middle frame 20 perpendicular to the first direction, ensure that the first cover plate 11 and the middle frame 20 have a larger connection area, and then ensure the stability of the connection structure of the cover plate assembly 10 and the middle frame 20.

[0091] The second groove 22 surrounds the opening of the accommodating groove 21, so that the first cover plate 11 can be connected with the bottom wall of the second groove 22 to realize the relative of the through hole 111 and the opening of the accommodating groove 21. When the first cover plate 11 and the middle frame 20 are connected, the side wall of the second groove 22 surrounds the middle frame 20, so that the side wall of the second groove 22 encloses the first cover plate 11 in the direction perpendicular to the first direction, and realizes the protection of the first cover plate 11 by the middle frame 20 in the direction perpendicular to the first direction.

[0092] Please refer to Figure 3 and Figure 3 , the second groove 22 and the accommodating groove 21 are communicated, that is, the bottom wall of the second groove 22 has the accommodating groove 21, which is beneficial to simplify the setting mode of the second groove 22 and the accommodating groove 21. The first cover plate 11 is connected with the bottom wall of the second groove 22, and at least part of the first cover plate 11 is located in the second groove 22. In the first direction, the thickness of the first cover plate 11 and the depth of the second groove 22 at least partially overlap, that is, the thickness of the first cover plate 11 and the thickness of the middle frame 20 at least partially overlap in the first direction, which reduces the thickness of the terminal structure assembly 100 in the first direction, and is beneficial to realize the thinning of the terminal structure assembly 100.

[0093] In an embodiment, please refer to Figure 3In the direction perpendicular to the first direction, the sidewall of the first cover plate 11 and the sidewall of the second groove 22 have a spacing distance, which provides more space for accommodating the first cover plate 11 in the second groove 22, provides a reserved gap for the setting error of the second groove 22 and the manufacturing error of the first cover plate 11, avoids that the first cover plate 11 cannot be installed into the second groove 22, and is beneficial to simplify the installation of the first cover plate 11 at the second groove 22. At the same time, it avoids that the sidewall of the first cover plate 11 and the sidewall of the second groove 22 are too close, and when the first cover plate 11 and / or the middle frame 20 are expanded by heat, the first cover plate 11 and the middle frame 20 are stamped with each other at the contact position, which causes damage to the first cover plate 11 and the middle frame 20. It is beneficial to provide space for moderate deformation of the first cover plate 11 and the middle frame 20, and to improve the service life of the first cover plate 11 and the middle frame 20.

[0094] In some embodiments, in the first direction, the height of the first cover plate 11 relative to the bottom wall of the second groove 22 can be less than or equal to the depth of the second groove 22, so that the first cover plate 11 is completely accommodated in the second groove 22, and the middle frame 20 is beneficial to protect the first cover plate 11; in other embodiments, the height of the first cover plate 11 relative to the bottom wall of the second groove 22 can also be greater than the depth of the second groove 22, so that part of the first cover plate 11 is accommodated in the second groove 22, and another part of the first cover plate 11 extends out of the opening of the second groove 22 along the first direction, which is beneficial to reduce the depth of the second groove 22, so that the middle frame 20 has a certain thickness, and the structural strength of the middle frame 20 is guaranteed.

[0095] In one embodiment, please refer to Figure 10 The bottom wall of the second groove 22 is provided with a second adhesive member 262, which is located between the middle frame 20 and the first cover plate 11 and is used for bonding the first cover plate 11 and the middle frame 20. The second adhesive member 262 has a certain thickness in the first direction, and in the first direction, the height of the first cover plate 11 relative to the bottom wall of the second groove 22 is the sum of the thickness of the first cover plate 11 and the thickness of the second adhesive member 262.

[0096] The design idea of the second groove 22 is similar to that of the first groove 113, which can improve the stability of the connection between the components in the terminal structure assembly 100, and make the thickness of the two connected components in the first direction at least partially overlap, reduce the thickness of the terminal structure assembly 100 in the first direction, and thus realize the thinning of the terminal structure assembly 100.

[0097] In one possible implementation, please refer to Figure 11 The projection of the second cover plate 12 in the first direction and the projection of the middle frame 20 in the first direction partially overlap, and the middle frame 20 can indirectly support the second cover plate 12, so that the middle frame 20 and the first cover plate 11 are both used to support the second cover plate 12, which is beneficial to improve the stability of the position of the second cover plate 12.

[0098] For one possible implementation, please refer to Figure 3 and Figure 7 The surface of the middle frame 20 facing the first cover plate 11 is provided with a mating part 24, and the surface of the first cover plate 11 facing the middle frame 20 is provided with a mating structure corresponding to the mating part 24. The mating structure on the first cover plate 11 and the mating part 24 on the middle frame 20 are connected to each other, further improving the stability of the connection between the first cover plate 11 and the middle frame 20.

[0099] The mating part 24 is located outside the receiving groove 21 and is positioned close to the receiving groove 21. This proximity of the mating part 24 to the lens assembly 30 increases the stability of the connection between the first cover plate 11 and the middle frame 20 near the lens assembly 30. When the terminal structure assembly 100 is subjected to external impact, the connection structure between the first cover plate 11 and the middle frame 20 near the lens assembly 30 is less likely to be damaged. The cover plate assembly 10 and the middle frame 20 can maintain their enclosure of the lens assembly 30, thus improving their protective capability. There can be at least two mating parts 24, which are evenly distributed around the receiving groove 21.

[0100] For one possible implementation, please refer to Figure 3 and Figure 12 After the second cover plate 12 closes the through hole 111, the lens assembly 30 is located between the second cover plate 12 and the bottom wall of the receiving groove 21. The second cover plate 12 and the bottom wall of the receiving groove 21 respectively apply pressure to the lens assembly 30 along a first direction (e.g., Figure 13 The lens assembly 30 is fixed by the opposing forces in the X direction (C-direction) between the second cover plate 12 and the bottom wall of the receiving groove 21. The terminal structure assembly 100 also includes a buffer 240, which is located between the lens assembly 30 and the second cover plate 12, such that the buffer 240 is also located between the second cover plate 12 and the bottom wall of the receiving groove 21, and the buffer 240 is also clamped between the second cover plate 12 and the bottom wall of the receiving groove 21.

[0101] The buffer 240 has a certain thickness in the first direction, so that the lens assembly 30 and the second cover plate 12 are spaced apart. The buffer 240 is elastic and can deform under force, so that the distance between the lens assembly 30 and the second cover plate 12 can be adjusted by the degree of deformation of the buffer 240, so that the bottom wall of the second cover plate 12 and the receiving groove 21 maintains the clamping and fixing of the lens assembly 30, which is beneficial to improving the stability of the position of the lens assembly 30 relative to the middle frame 20.

[0102] In an embodiment, the light-in side of the lens assembly 30 is the side of the lens assembly 30 close to the bottom wall of the accommodating groove 21, and the light-out side of the lens assembly 30 is the side of the lens assembly 30 close to the cover plate assembly 10. The lens assembly 30 further comprises a sensor chip, and the sensor chip of the lens assembly 30 is located on the light-out side of the lens assembly 30, i.e. the side of the sensor chip of the lens assembly 30 close to the cover plate assembly 10. By arranging the buffer 240 between the second cover plate 12 and the lens assembly 30, the buffer 240 can adjust the pressure applied by the second cover plate 12 to the sensor chip of the lens assembly 30 through deformation, so as to avoid that the pressure applied by the second cover plate 12 to the sensor chip of the lens assembly 30 is too large and causes damage to the sensor chip.

[0103] The application further provides a terminal device 200, please refer to Figure 14 、 Figure 12 and Figure 13 , Figure 12 shows the structure schematic diagram of the terminal device 200 provided by the embodiment of the application, Figure 14 shows Figure 13 the cross-sectional view of the terminal device 200 at D-D provided by the embodiment shown in the figure, Figure 13 shows Figure 14 the enlarged view of the terminal device 200 at c provided by the embodiment shown in the figure. The terminal device 200 comprises the terminal structure assembly 100 and the screen 210 described in any one of the above embodiments, the screen 210 is located on one side of the terminal structure assembly 100 in the first direction (such as the X direction in Figure 14 and Figure 11 ), the screen 210 is connected with the middle frame 20 of the terminal structure assembly 100, and the screen 210 is located on the side of the middle frame 20 away from the cover plate assembly 10, so that the middle frame 20 is located between the screen 210 and the cover plate assembly 10.

[0104] At least a part of the screen 210 and at least a part of the middle frame 20 are connected in the first direction, the projection area of the screen 210 in the first direction is less than or equal to the projection area of the middle frame 20 in the first direction, and at the same time, the projection of the screen 210 in the first direction is located within the projection range of the middle frame 20 in the first direction, or the projection of the screen 210 in the first direction and the projection of the middle frame 20 in the first direction completely coincide. The area size relationship between the projection of the screen 210 in the first direction and the projection of the cover plate assembly 10 in the first direction can be set according to actual requirements, which is not limited in the application.

[0105] In an embodiment, please refer to Figure 14The cover plate assembly 10, the middle frame 20 and the screen 210 are sequentially connected in the first direction, the projection area of the cover plate assembly 10 and the screen 210 in the first direction is smaller than the projection area of the middle frame 20 in the first direction, the projections of the cover plate assembly 10 and the screen 210 in the first direction are located within the projection range of the middle frame 20 in the first direction, and in the direction perpendicular to the first direction, the cover plate assembly 10 and the screen 210 have a spacing distance from the four peripheral edges of the middle frame 20. The cover plate assembly 10 and the screen 210 are prevented from protruding from the four peripheral edges of the middle frame 20, which is conducive to improving the appearance of the terminal device 200. At the same time, the cover plate assembly 10 and the screen 210 are prevented from being easily collided with the outside world, and the protection of the middle frame 20 on the cover plate assembly 10 and the screen 210 is realized.

[0106] In an embodiment, referring to Figure 11 and Figure 14 , the surface of the middle frame 20 opposite to the first cover plate 11 has a third groove 14, the opening and the bottom wall of the third groove 14 are oppositely arranged in the first direction (such as the X direction in Figure 10 and Figure 11 ), and the lens hole 23 penetrates the bottom wall of the accommodating groove 21 and the bottom wall of the third groove 14, so that the accommodating groove 21, the lens hole 23 and the third groove 14 are sequentially communicated. The third groove 14 is used for accommodating the screen 210, and the screen 210 is connected with the bottom wall of the third groove 14, so as to ensure that the screen 210 and the middle frame 20 have a large connection area, and then ensure the stability of the connection between the screen 210 and the middle frame 20. The third groove 14 surrounds the lens hole 23, so that after the screen 210 is connected with the bottom wall of the third groove 14, the screen 210 can realize the closure of the lens hole 23, which is conducive to simplifying the setting mode of the screen 210. At the same time, when the screen 210 is connected with the bottom wall of the third groove 14, the side wall of the third groove 14 encloses the screen 210, and the screen 210 is limited in the direction perpendicular to the first direction, which is conducive to improving the stability of the position of the screen 210.

[0107] The screen 210 is connected with the bottom wall of the third groove 14 in a fit manner, and at least a part of the screen 210 is located in the third groove 14. In the first direction, the thickness of the screen 210 and the depth of the third groove 14 at least partially overlap, that is, the thickness of the screen 210 and the thickness of the middle frame 20 at least partially overlap in the first direction, which reduces the total thickness of the screen 210 and the middle frame 20 in the first direction, that is, reduces the thickness of the terminal device 200 in the first direction, which is conducive to realizing the thinness of the terminal device 200.

[0108] In a possible implementation, referring to Figure 14 , Figure 14 and Figure 15The bottom wall of the accommodating groove 21 has a lens hole 23 penetrating through the bottom wall of the accommodating groove 21 along the first direction, and the lens hole 23 is in communication with the accommodating groove 21. The partial lens assembly 30 is located in the lens hole 23, such that a part of the lens assembly 30 is located in the accommodating groove 21 of the middle frame 20, and another part of the lens assembly 30 is located in the lens hole 23 at the bottom wall of the accommodating groove 21, and both the accommodating groove 21 and the lens hole 23 are used for accommodating the lens assembly 30.

[0109] The screen 210 encloses the lens hole 23, that is, the screen 210 completely covers the lens hole 23 in the first direction. The area of the screen 210 is greater than or equal to the area of the lens hole 23, that is, the projection area of the screen 210 in the first direction is greater than or equal to the projection area of the edge of the lens hole 23 in the first direction, and meanwhile, the projection of the edge of the lens hole 23 in the first direction is located in the projection range of the screen 210 in the first direction. By enclosing the lens hole 23 with the screen 210, the sealing of the lens assembly 30 by the cover plate assembly 10, the middle frame 20 and the screen 210 is ensured, the sealing of the inside of the accommodating groove 21 is better, and the entry of external dust and other substances into the lens assembly 30 is avoided, thereby ensuring the imaging effect of the lens assembly 30.

[0110] The screen 210 has a light-transmitting region, which is arranged opposite to the lens hole 23 in the first direction, so that external light can enter the lens assembly 30 through the lens hole 23 via the light-transmitting region, and the imaging of the lens assembly 30 is realized. In an embodiment, the side of the lens assembly 30 close to the bottom wall of the accommodating groove 21 is the light-in side of the lens assembly 30, and the side of the lens assembly 30 close to the cover plate assembly 10 is the light-out side of the lens assembly 30. The area of the lens hole 23 and the area of the light-transmitting region are both greater than the light-in hole area of the lens assembly 30, so as to avoid the middle frame 20 and the screen 210 from blocking the light-in of the lens assembly 30, and enable the external light to smoothly enter the lens assembly 30.

[0111] Please refer to Figure 15 and Figure 12 , Figure 14 It is shown that Figure 16 The exploded view of the terminal device provided by the embodiment shown in FIG. 10 is shown. In the first direction, the surface of the screen 210 towards the middle frame 20 has a relief groove 211, the opening and the bottom wall of the relief groove 211 are oppositely arranged in the first direction, the relief groove 211 is in communication with the lens hole 23, and the lens assembly 30 protrudes from the lens hole 23, such that part of the lens assembly 30 protrudes from the lens hole 23 in the first direction and is located in the relief groove 211.

[0112] A portion of the lens assembly 30 is located within the receiving groove 21 of the mid-frame 20, and another portion of the lens assembly 30 is located within the lens aperture 23 and the clearance groove 211. The receiving groove 21, the lens aperture 23, and the clearance groove 211 are all used to accommodate the lens assembly 30. In one embodiment, the lens assembly 30 is partially located within the through hole 111 of the first cover plate 11, partially within the receiving groove 21, partially within the lens aperture 23, and partially within the clearance groove 211. The through hole 111, the receiving groove 21, the lens aperture 23, and the clearance groove 211 are all used to accommodate the lens assembly 30.

[0113] While ensuring that the terminal device 200 can accommodate the lens assembly 30, a clearance groove 211 is provided on the screen 210. The length of the lens assembly 30 and the thickness of the clearance groove 211 partially overlap in the first direction, which reduces the thickness of the overlapping part of the lens assembly 30 and the screen 210 in the first direction. The reduced thickness of the terminal device 200 in the first direction is conducive to achieving a thinner and lighter terminal device 200 and improving the portability of the terminal device 200.

[0114] In one embodiment, please refer to Figure 17 The bottom wall of the clearance groove 211 and the lens assembly 30 are spaced apart in the first direction, providing more space for the clearance groove 211 to accommodate the lens assembly 30, which helps to simplify the setting of the screen 210; at the same time, it avoids the bottom wall of the clearance groove 211 from contacting the lens assembly 30, which would cause friction between the bottom wall of the clearance groove 211 and the lens assembly 30, thus helping to protect the lens assembly 30 from the screen 210.

[0115] For one possible implementation, please refer to Figure 16 and Figure 17 , Figure 12 This diagram illustrates the structure of the terminal device 200 provided in this embodiment without the first cover plate 11. Figure 17 It shows Figure 13 The illustrated embodiment provides a cross-sectional view and a partial enlarged view of the terminal device 200 at EE. The terminal device 200 also includes a speaker module 220, which is fixedly connected to a mid-frame 20. A lens assembly 30 has a bracket 31 located around the lens assembly 30, which supports and protects the lens within the lens assembly 30. The speaker module 220 has a first abutment portion 221, and the mid-frame 20 has a second abutment portion 25, in a first direction (e.g.,...). Figure 14In the X direction, the bracket 31 is located between the first abutment 221 and the second abutment 25. The first abutment 221 abuts against the bracket 31 in the first direction, and the second abutment 25 abuts against the bracket 31 in the opposite direction of the first direction, so that the first abutment 221 and the second abutment 25 respectively apply forces to the bracket 31 in opposite directions in the first direction. The middle frame 20 and the speaker module 220 clamp and fix the lens assembly 30, which helps to further improve the stability of the position of the lens assembly 30.

[0116] For one possible implementation, please refer to Figure 15 , Figure 18 , Figure 18 and Figure 13 , Figure 14 A schematic diagram of the positioning member 230 provided in the embodiments of this application is shown. The terminal device 200 also includes the positioning member 230, which is located in the receiving groove 21. The positioning member 230 is connected to the bottom wall of the receiving groove 21. At least a portion of the positioning member 230 is located between the lens assembly 30 and the bottom wall of the receiving groove 21. The lens assembly 30 is fixed to the positioning member 230.

[0117] Positioning member 230 has positioning hole 233, which communicates with lens hole 23, and lens assembly 30 in a first direction (e.g. Figure 18 and Figure 14 The optical axis of the lens assembly 30 passes through the positioning hole 233 and the lens hole 23 in sequence along the X-direction, so that part of the lens assembly 30 is located within the positioning hole 233. The center of the positioning hole 233 and the center of the lens hole 23 are on the same straight line, and this straight line extends along the first direction. When assembling the terminal device 200, the center of the positioning hole 233 and the center of the lens hole 23 are aligned first, and then the optical axis of the lens assembly 30 passes through the center of the positioning hole 233. This can achieve the positioning of the lens assembly 30 and improve the accuracy of the lens assembly 30 assembly.

[0118] In one embodiment, please refer to ​ The positioning member 230 has a connected first part 231 and a second part 232. The first part 231 and the second part 232 can be an integral structure or two connected parts, which is not limited in this application. The first part 231 is connected to the bottom wall of the receiving groove 21. The first part 231 has a positioning hole 233. The second part 232 extends from the first part 231 toward the opening of the receiving groove 21. The second part 232 surrounds the lens assembly 30. The second part 232 and the lens assembly 30 have a spaced distance to simplify the installation of the lens assembly 30 relative to the positioning member 230 and to protect the lens assembly 30. The second part 232 does not protrude from the opening so that the positioning member 230 is completely received within the receiving groove 21, avoiding the positioning member 230 interfering with the setting of other parts. Exemplarily, the second part 232 has a spaced distance from the opening of the receiving groove 21.

[0119] In one embodiment, referring to ​ The terminal device 200 further comprises a third adhesive 263 and a sealing member 250, both of which are located in the accommodating groove 21. The third adhesive 263 is located between the first portion 231 and the bottom wall of the accommodating groove 21, and is used to adhere the positioning member 230 and the middle frame 20. The sealing member 250 is located between the first portion 231 and the lens assembly 30, and the lens assembly 30 and the positioning member 230 sandwich the sealing member 250. The sealing member 250 is elastic, so that the sealing member 250 and the buffer member 240 can both adjust the size of the pressure applied by the cover plate assembly 10 and the middle frame 20 to the lens assembly 30 through deformation, thereby avoiding damage to the lens assembly 30.

[0120] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A terminal construction kit, characterized in that The terminal structure assembly comprises: a lens assembly, an optical axis direction of the lens assembly being a first direction; a middle frame, having a receiving groove, part of the lens assembly being located in the receiving groove; a surface of the middle frame having a second groove, the second groove surrounding an opening of the receiving groove, the second groove being in communication with the receiving groove; a cover plate assembly, comprising a first cover plate and a second cover plate, at least part of the middle frame, at least part of the first cover plate and part of the second cover plate being sequentially connected in the first direction, at least part of the first cover plate being located in the second groove and connected with a bottom wall of the second groove; the first cover plate having a through hole, the through hole being in communication with the receiving groove, part of the lens assembly being located in the through hole, the second cover plate closing the through hole, the lens assembly being located between the second cover plate and the bottom wall of the receiving groove.

2. The terminal construction assembly of claim 1, wherein, The first cover plate has an outer surface, the outer surface being a surface of the first cover plate facing away from the surface of the middle frame in the first direction, the outer surface having a first groove, the first groove surrounding the through hole, the first groove being in communication with the through hole, the first groove being used for accommodating the second cover plate, the second cover plate being connected with a bottom wall of the first groove.

3. The terminal construction assembly of claim 2, wherein, The outer surface has a convex part surrounding a periphery of the first groove.

4. The terminal construction assembly of claim 3, wherein, In the first direction, a height of the second cover plate relative to the bottom wall of the first groove is less than or equal to a height of the convex part relative to the bottom wall of the first groove.

5. A terminal construction kit according to any one of claims 2 to 4, characterised in that, In the first direction, a distance between the bottom wall of the first groove and the outer surface is less than the height of the second cover plate relative to the bottom wall of the first groove.

6. A terminal construction kit according to any one of claims 1 to 5, characterised in that In the first direction, a thickness of the second cover plate is less than a thickness of the first cover plate, and a hardness of the second cover plate is greater than a hardness of the first cover plate.

7. A terminal construction kit according to any one of claims 1 to 6, wherein A projection of the second cover plate in the first direction and a projection of the middle frame in the first direction partially overlap.

8. A terminal device comprising the terminal structure assembly and a screen according to any one of claims 1 to 7, at least part of the screen and at least part of the middle frame being connected in the first direction, the screen being located on a side of the middle frame away from the cover plate assembly.

9. The terminal device according to claim 8, characterized by A bottom wall of the receiving groove has a lens hole, the screen closing the lens hole, in the first direction, a surface of the screen facing the surface of the middle frame having a avoiding groove, the avoiding groove being in communication with the lens hole, the lens assembly protruding from the lens hole, part of the lens assembly being located in the avoiding groove.

10. The terminal device according to claim 8 or 9, characterized by The terminal device further comprises a sound box module, the sound box module being fixedly connected with the middle frame, the lens assembly having a support, the sound box module having a first abutting portion, the middle frame having a second abutting portion, in the first direction, the support being located between the first abutting portion and the second abutting portion, the first abutting portion abutting with the support along the first direction, the second abutting portion abutting with the support along a direction opposite to the first direction.

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