Middle frame assembly and electronic device
By setting a groove at the connection between the support plate and the frame of the mid-frame assembly and embedding inserts of different materials, the problem of the metal mid-frame's gloss affecting the recognition accuracy of the CCD sensor was solved, and high-precision assembly of the battery cover and screen was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING XIAOMI MOBILE SOFTWARE CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-05
AI Technical Summary
The luster of the metal frame affects the recognition accuracy of the CCD sensor, resulting in larger assembly errors between the battery cover and the screen.
A groove is set at the connection between the support plate and the frame of the mid-frame assembly, and inserts of different materials are embedded therein. The material difference of the inserts enables the CCD sensor to accurately identify the boundary and improves the assembly accuracy.
By using embedded components made of different materials, the CCD sensor can accurately identify the boundaries of the mid-frame components, improve the assembly accuracy of the battery cover and screen, and reduce assembly errors.
Smart Images
Figure CN224329702U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of electronic technology, and in particular to a mid-frame assembly and an electronic device. Background Technology
[0002] With the continuous development of mobile communication technology, mobile phones have become an indispensable part of people's daily lives. Currently, mobile phones generally use metal frames because metal frames have better strength and durability than plastic frames, and their heat dissipation performance is also superior. When installing the battery cover and screen on opposite sides of the metal frame, a CCD (charge-coupled device) is needed to identify the boundaries of the metal frame used to accommodate the battery cover and screen. However, the luster of the metal material can affect the recognition accuracy of the CCD sensor, leading to larger assembly errors for the battery cover and screen. Utility Model Content
[0003] In view of this, the present disclosure provides a mid-frame assembly and an electronic device that helps to reduce assembly errors of the battery cover and screen.
[0004] Specifically, the following technical solutions are included:
[0005] In a first aspect, embodiments of this disclosure provide a mid-frame component, including:
[0006] The middle frame body includes a frame and a support plate. The support plate has a first surface for mounting one of a screen assembly and a battery cover. The inner sidewall of the frame is connected to the edge of the first surface. The inner sidewall of the frame is provided with a first groove, which is at least partially located within the first surface.
[0007] An insert is disposed within the first groove, and the material of the insert is different from that of the main frame.
[0008] Optionally, the carrier plate has a second surface opposite to the first surface, the second surface being used to mount another of the screen assembly and the battery cover, the inner sidewall of the frame being provided with a second groove, at least a portion of the second groove being located within the second surface, and the insert being disposed within the second groove.
[0009] Optionally, the support plate is provided with a hollow area, the hollow area is connected to the first groove and the second groove, and the insert is disposed in the hollow area.
[0010] Optionally, the extension directions of the first groove and the second groove are parallel to the length direction of the frame.
[0011] Optionally, the length of the first groove is 8mm to 10mm; and / or
[0012] The length of the second groove is 8mm to 10mm.
[0013] Optionally, the main body of the middle frame is rectangular, and the main body of the middle frame includes four borders, each of which is provided with the first groove.
[0014] Optionally, each of the frame edges is provided with two of the first grooves, and the positions of the two first grooves are respectively close to the ends of the frame edges.
[0015] Optionally, the frame has an end face parallel to the first surface, and the connection between the end face and the inner sidewall is provided with a rounded corner structure.
[0016] Optionally, the radius of the rounded corner structure is 0.03mm to 0.12mm.
[0017] Optionally, the main body of the middle frame is made of metal, and the insert is an injection molded part.
[0018] In a second aspect, embodiments of this disclosure provide an electronic device, the electronic device including the mid-frame component described in any of the first aspects above.
[0019] The beneficial effects of the technical solutions provided in this disclosure include at least the following:
[0020] In the mid-frame assembly provided in this embodiment, a first groove is provided at the connection between the first surface of the support plate and the inner sidewall of the frame, and the insert is located in the first groove. Since the material of the insert is different from that of the mid-frame body, the CCD sensor can more accurately identify the connection between the first surface of the support plate and the inner sidewall of the frame, thereby accurately determining the boundary of the mid-frame assembly used to accommodate the battery cover and the screen, which is beneficial to improving the assembly accuracy of the battery cover and the screen. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the mid-frame component provided in an embodiment of this disclosure;
[0023] Figure 2 A schematic diagram of the main body of the middle frame assembly provided in the embodiments of this disclosure;
[0024] Figure 3 This is a partially enlarged schematic diagram of the mid-frame assembly provided in an embodiment of this disclosure;
[0025] Figure 4 A schematic diagram of the mid-frame component provided in an embodiment of this disclosure;
[0026] Figure 5 A schematic diagram of the main body of the middle frame assembly provided in the embodiments of this disclosure;
[0027] Figure 6 A partial cross-sectional view of an electronic device provided in an embodiment of this disclosure.
[0028] The reference numerals in the figure are respectively:
[0029] 1-Mid-frame main body; 2-Inset component; 3-Screen assembly; 4-Battery cover;
[0030] 11-Frame; 12-Bearing plate;
[0031] 111-Inner sidewall; 112-First groove; 113-Second groove; 114-End face; 115-Rounded corner structure; 121-First surface; 122-Second surface; 123-Hollowed-out area.
[0032] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0033] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0034] Figure 1 This is a schematic diagram of a mid-frame component provided in an embodiment of this disclosure. Figure 1 As shown, the mid-frame assembly includes: a mid-frame body 1, which includes a frame 11 and a support plate 12. The support plate 12 has a first surface 121 for mounting one of the screen assembly and the battery cover. The inner sidewall 111 of the frame 11 is connected to the edge of the first surface 121. The inner sidewall 111 of the frame 11 is provided with a first groove 112, which is at least partially located within the first surface 121. An insert 2 is disposed within the first groove 112. The material of the insert 2 is different from that of the mid-frame body 1.
[0035] In the mid-frame assembly provided in this embodiment, a first groove 112 is provided at the connection between the first surface 121 of the support plate 12 and the inner sidewall 111 of the frame 11. The insert 2 is located in the first groove 112. Since the material of the insert 2 is different from that of the mid-frame body 1, the CCD sensor can more accurately identify the connection between the first surface 121 of the support plate 12 and the inner sidewall 111 of the frame 11, thereby accurately determining the boundary of the mid-frame assembly for accommodating the battery cover and the screen, which is beneficial to improving the assembly accuracy of the battery cover and the screen.
[0036] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.
[0037] Figure 2 This is a schematic diagram of the main body of the mid-frame assembly provided in an embodiment of this disclosure. Figure 1 and 2 As shown, the mid-frame assembly provided in this embodiment includes a mid-frame body 1 and an insert 2, with the insert 2 embedded inside the mid-frame body 1. The mid-frame body 1 includes a frame 11 and a support plate 12, with the inner sidewall 111 of the frame 11 connected to the side of the support plate 12. The support plate 12 has a first surface 121 for mounting a battery cover or screen assembly. A first groove 112 is provided at the connection between the inner sidewall 111 and the first surface 121, with one side of the first groove 112 being lower than the plane of the first surface 121, and the insert 2 is embedded in the first groove 112. When mounting the screen assembly or battery cover to the mid-frame assembly, a CCD device is needed to identify the specific position of the first surface 121 of the mid-frame body 1, thereby determining the specific mounting position of the screen assembly or battery cover, i.e., the position where the first surface 121 intersects with the inner sidewall 111. Since the material of the inlay 2 is different from that of the main body of the middle frame 1, the CCD sensor can more accurately identify the position where the first surface 121 formed by the inlay 2 intersects with the inner sidewall 111. Then, the computer fits the complete first surface 121 based on the inlay 2 located in the first groove 112, so as to accurately install the screen assembly or battery cover into the middle frame assembly.
[0038] In some embodiments of this disclosure, such as Figure 2As shown, the carrier plate 12 has a second surface 122 opposite to the first surface 121. The second surface 122 is used to mount another of the screen assembly and the battery cover. The inner sidewall of the frame 11 is provided with a second groove 113. At least a portion of the second groove 113 is located within the second surface 122, and the insert 2 is disposed within the second groove 113. The plane containing one side of the second groove 113 is lower than the plane containing the second surface 122. The insert 2 can form the boundary between the second surface 122 and the inner sidewall 111 in the second groove 113, so that the CCD sensor can identify the boundary of the second surface 122, thereby improving the accuracy of the installation of the screen assembly or the battery cover.
[0039] In some embodiments of this disclosure, such as Figure 2 As shown, the carrier plate 12 has a hollow area 123, which communicates with the first groove 112 and the second groove 113. The insert 2 is disposed within the hollow area 123. The main body 1 of the middle frame is made of metal, and the insert 2 is an injection molded part. The insert 2 is formed in the hollow area 123, the first groove 112 and the second groove 113 by injection molding. Multiple antennas can be formed in the main body 1 of the middle frame through the hollow area 123.
[0040] Specifically, the middle frame body 1 with a hollow area 123, a first groove 112 and a second groove 113 can be formed by CNC machining first. Then, the middle frame body 1 is placed in the mold, and the insert 2 is injection molded in the hollow area 123, the first groove 112 and the second groove 113. Finally, the middle frame body 1 and the insert 2 are CNC machined again to remove excess plastic material during the injection molding process and to make the inner sidewall 111, the first surface 121 and the second surface 122 flat.
[0041] Figure 3 This is a partially enlarged schematic diagram of the mid-frame assembly provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 3 As shown, the frame 11 has an end face 114 parallel to the first surface 121, and a rounded corner structure 115 is provided at the connection between the end face 114 and the inner sidewall 111. During the installation of the screen assembly or battery cover, since the end face 114 of the frame 11 is usually higher than the first surface 121, the edge of the screen assembly or battery cover may come into contact with the sharp corner of the edge of the frame 11, causing paint chipping on the frame 11. The rounded corner structure 115 makes it easier to install the screen assembly or battery cover onto the first surface 121, thereby reducing the probability of the screen assembly or battery cover colliding with the frame 11 and avoiding paint chipping on the frame 11.
[0042] In some embodiments of this disclosure, the radius of the rounded corner structure 115 is 0.03mm to 0.12mm. Preferably, the radius of the rounded corner structure 115 is 0.05mm. In these embodiments, setting the radius of the rounded corner structure 115 to be no less than 0.03mm can prevent the screen assembly from colliding with the mid-frame body 1 during installation, thus avoiding paint chipping on the mid-frame body 1. Setting the radius of the rounded corner structure 115 to be no greater than 0.12mm can reduce the gap between the flat edge and the mid-frame body 1, preventing the gap from being too large and affecting the user experience.
[0043] It should be noted that the rounded corner structure can be formed during the polishing of the main body 1 of the middle frame. Specifically, a 0.03mm C-corner structure can be processed at the edge of the end face 114, and a 0.03mm C-corner structure can be processed at the edge of the inner sidewall 111. Then, these two C-corner structures are polished to form a rounded corner structure with a radius of 0.05mm.
[0044] Figure 4 This is a schematic diagram of the mid-frame component provided in an embodiment of this disclosure. Figure 5 This is a schematic diagram of the main body of the mid-frame assembly provided in an embodiment of this disclosure. In some embodiments of this disclosure, such as... Figure 4 and 5 As shown, the extension directions of the first groove 112 and the second groove 113 are parallel to the length direction of the frame 11. During CCD recognition, the junction between the inner sidewall 111 formed by the insert 2 and the first surface 121, as recognized by the CCD device, is a straight line, and the extension direction of this straight line is parallel to the extension direction of the frame 11. Therefore, the shape and position of the boundary of the first surface 121 can be determined, thereby accurately installing the battery cover or screen assembly into the mid-frame assembly.
[0045] For example, the length of the first groove 112 is 8mm to 10mm; and / or the length of the second groove 113 is 8mm to 10mm. Preferably, the length of the first groove 112 is 9mm, and the length of the second groove 113 is 9mm. When identifying the boundary of the metal frame used to accommodate the battery cover and screen by a CCD device, the 8mm-10mm long first groove 112 ensures that the CCD device can identify the position of the first groove 112, and also avoids affecting the strength of the frame assembly if the size of the first groove 112 is too large.
[0046] It should be noted that the dimensions of the first groove 112 and the second groove 112 may be different, and the disclosed embodiments are not specifically limited here.
[0047] In some embodiments of this disclosure, the frame body 1 is rectangular, and the frame body 1 includes four side borders 11 surrounding the edge of the support plate 12. Each side border 11 is provided with a first groove 112. The extending directions of the four side borders 11 are the same as the extending directions of the four edges of the rectangular frame body 1. The inlays 2 in the four first grooves 112 can form four boundaries with different extending directions of the first surface 121, enabling the computer to fit these four boundaries to form an integral first surface 121 to determine the specific installation position of the battery cover or screen assembly.
[0048] Optionally, each frame 11 is provided with two first grooves 112, the two first grooves 112 being located near the ends of the frame 11. See Figure 4 and 5 Two first grooves 112 are provided at the corners of the rectangular middle frame 1, and the included angle between the extending directions of the two first grooves 112 is 90°. The structure in which the first grooves 112 are provided at both ends of the frame 11 can further improve the accuracy of CCD device recognition.
[0049] It should be noted that the second groove 113 may have the same structure and distribution as the first groove 112 in the above embodiment, and will not be described again here.
[0050] Secondly, embodiments of this disclosure also provide an electronic device, Figure 6 A partial cross-sectional view of the electronic device provided in the embodiments of this disclosure, such as... Figure 6 As shown, the electronic device includes the mid-frame component in any of the embodiments of the first aspect described above.
[0051] It should be noted that the electronic device provided in this disclosure embodiment may be, but is not limited to, a remote control, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III), an MP4 player (Moving Picture Experts Group Audio Layer IV), or a laptop computer. This electronic device may also be referred to as a user device, a portable terminal, a laptop terminal, or other names.
[0052] In the electronic device provided in this embodiment, a first groove 112 is provided at the connection between the first surface 121 of the carrier plate 12 and the inner sidewall 111 of the frame 11. The insert 2 is located in the first groove 112. Since the material of the insert 2 is different from that of the middle frame body 1, the CCD sensor can more accurately identify the connection between the first surface 121 of the carrier plate 12 and the inner sidewall 111 of the frame 11, thereby accurately determining the boundary of the middle frame assembly for accommodating the battery cover and the screen, which is beneficial to improving the assembly accuracy of the battery cover and the screen.
[0053] In some embodiments of this disclosure, such as Figure 6 As shown, the electronic device also includes a screen assembly 3 and a battery cover 4. The screen assembly 3 is located on one side of the first surface 121 of the carrier plate 12 and is attached to the first surface 121. The battery cover 4 is located on one side of the second surface 122 of the carrier plate 12 and is attached to the second surface 122.
[0054] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0055] In the description of this disclosure, 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 refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0056] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0057] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 are not intended to 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 disclosure.
[0058] In the description of this specification, the references to the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this disclosure.
[0059] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.
Claims
1. A mid-frame component, characterized in that, include: The middle frame body (1) includes a frame (11) and a support plate (12). The support plate (12) has a first surface (121) for mounting one of a screen assembly and a battery cover. The inner sidewall (111) of the frame (11) is connected to the edge of the first surface (121). The inner sidewall (111) of the frame (11) is provided with a first groove (112). The first groove (112) is at least partially located within the first surface (121). An insert (2) is disposed in the first groove (112), and the material of the insert (2) is different from that of the middle frame body (1).
2. The mid-frame assembly according to claim 1, characterized in that, The support plate (12) has a second surface (122) opposite to the first surface (121), the second surface (122) is used to mount another of the screen assembly and the battery cover, the inner sidewall of the frame (11) is provided with a second groove (113), at least a portion of the second groove (113) is located in the second surface (122), and the insert (2) is disposed in the second groove (113).
3. The mid-frame assembly according to claim 2, characterized in that, The support plate (12) is provided with a hollow area (123), which is connected to the first groove (112) and the second groove (113), and the insert (2) is disposed in the hollow area (123).
4. The mid-frame assembly according to claim 2, characterized in that, The first groove (112) and the second groove (113) extend in a direction parallel to the length direction of the frame (11).
5. The mid-frame assembly according to claim 4, characterized in that, The length of the first groove (112) is 8mm to 10mm; and / or The length of the second groove (113) is 8mm to 10mm.
6. The mid-frame assembly according to claim 1, characterized in that, The main body of the middle frame (1) is rectangular and includes four side frames (11). The four side frames (11) surround the edge of the support plate (12), and each side frame (11) is provided with the first groove (112).
7. The mid-frame assembly according to claim 6, characterized in that, Each of the frame (11) is provided with two first grooves (112), and the two first grooves (112) are respectively located near the ends of the frame (11).
8. The mid-frame assembly according to claim 1, characterized in that, The frame (11) has an end face (114) parallel to the first surface (121), and a rounded corner structure (115) is provided at the connection between the end face (114) and the inner sidewall (111).
9. The mid-frame assembly according to claim 8, characterized in that, The radius of the rounded corner structure (115) is 0.03mm to 0.12mm.
10. The mid-frame assembly according to any one of claims 1 to 9, characterized in that, The main body (1) of the middle frame is made of metal, and the inner part (2) is an injection molded part.
11. An electronic device, characterized in that, Includes the middle frame component as described in any one of claims 1 to 10.