Antenna assembly and electronic equipment
By introducing limiting parts into the antenna assembly of electronic equipment, the problem of easy interference between the connecting piece and the circuit board during assembly is solved, and the protection and cost reduction of the circuit board is achieved, and the miniaturization design of electronic equipment is also suitable.
Patent Information
- Application Number
- CN202421575102.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-04
AI Technical Summary
During the assembly process of electronic equipment, the connecting piece is prone to interference with the circuit board, resulting in damage to the circuit board and inability to repair, and the cost loss is high.
An antenna assembly is designed, including a midframe, a connecting piece, a shrapnel, a limiting piece and a first circuit board. The connecting piece is fixedly connected to the middle frame and is arranged spaced from the first circuit board; the shrapnel is fixedly connected to the first circuit board and is elastically connected to the connecting piece; the limiting member is arranged between the connecting piece and the first circuit board to restrict the movement of the connecting piece in a direction close to the first circuit board.
Through the design of the limiting parts, interference between the connecting piece and the circuit board is avoided, damage to the circuit board is prevented, and the cost is reduced. This design is suitable for the miniaturization needs of electronic devices.
Smart Images
Figure CN223006971U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electronic products, and particularly to an antenna assembly and an electronic device. Background Art
[0002] With the continuous development of communication technologies, electronic devices such as mobile phones, tablet computers, and laptop computers have become increasingly popular. Electronic devices achieve communication functions through antennas. In related technologies, the metal part of the middle frame is used as the antenna, and the metal part of the middle frame and the circuit board are electrically connected through a connecting piece, thereby realizing the antenna function. However, during the assembly process, the connecting piece is prone to interference with the circuit board, resulting in damage to the circuit board and inability to be repaired, with a relatively high cost loss. Summary of the Utility Model
[0003] The purpose of the embodiments of this application is to provide an antenna assembly and an electronic device to avoid interference between the connecting piece and the circuit board, thereby reducing costs. The specific technical solutions are as follows:
[0004] An embodiment of the first aspect of this application provides an antenna assembly, which includes a middle frame, a connecting piece, a spring piece, a limiting piece, and a first circuit board; the middle frame has an accommodation space, and the connecting piece, the spring piece, the limiting piece, and the first circuit board are all arranged in the accommodation space; the connecting piece is fixedly connected to the middle frame and is spaced apart from the first circuit board; the spring piece is fixedly connected to the first circuit board and is elastically connected to the connecting piece; the limiting piece is arranged between the connecting piece and the first circuit board and is used to limit the connecting piece from moving towards the direction close to the first circuit board.
[0005] As can be seen from the above, the antenna assembly of the embodiments of this application includes a middle frame, a connecting piece, a spring piece, a limiting piece, and a first circuit board; the connecting piece is fixedly connected to the middle frame and is spaced apart from the first circuit board; the spring piece is fixedly connected to the first circuit board and is elastically connected to the connecting piece, thereby realizing the antenna function; the limiting piece is arranged between the connecting piece and the first circuit board and is used to limit the connecting piece from moving towards the direction close to the first circuit board, so that the connecting piece and the first circuit board can be separated by the limiting piece, and the connecting piece and the first circuit board will not interfere with each other, thereby avoiding the problem of damage to the first circuit board caused by the interference between the connecting piece and the first circuit board, and thus reducing costs.
[0006] In some embodiments of this application, the middle frame is recessed away from the first circuit board to form a groove; the limiting piece is fixedly arranged in the groove; the first end of the limiting piece extends out of the groove and is located between the connecting piece and the first circuit board, and is used to limit the connecting piece from moving towards the direction close to the first circuit board.
[0007] As can be seen from the above, the limiting member is arranged in the groove, without additionally occupying the internal accommodation space of the middle frame, without affecting the layout of other components, and is conducive to the miniaturization design of the electronic device.
[0008] In some embodiments of the present application, the orthographic projection of the first circuit board on the bottom wall of the middle frame covers the part of the groove away from the connecting piece; the orthographic projection of the connecting piece on the bottom wall of the middle frame is arranged at an interval from the groove.
[0009] As can be seen from the above, in this way, in the thickness direction of the electronic device, the limiting member and the first circuit board can be arranged overlappingly, saving space. The first end of the limiting member can extend out of the groove from a position not covered by the first circuit board to limit the connecting piece from moving towards the direction close to the circuit board.
[0010] In some embodiments of the present application, the limiting member is an L-shaped plate-like structure, including: a first sub-board and a second sub-board which are connected; the second sub-board is arranged at the bottom of the groove; the first sub-board extends from one end of the second sub-board along the inner wall of the groove to the outside of the groove and extends out of the groove; the free end of the first sub-board is located between the connecting piece and the first circuit board.
[0011] As can be seen from the above, with such an arrangement, it is ensured that the space occupied by the limiting member between the connecting piece and the first circuit board is small, which is conducive to reducing the distance between the connecting piece and the first circuit board and making the component layout more compact.
[0012] In some embodiments of the present application, the second sub-board is in a cross shape; one end of the second sub-board is connected to the first sub-board, and there is a first gap between at least two of the remaining three ends and the inner wall of the groove; the first sub-board is in close contact with the part of the inner wall of the groove close to the connecting piece.
[0013] As can be seen from the above, with such an arrangement, it is convenient for installation. The remaining three ends of the cross-shaped second sub-board and the inner wall of the groove can be in point contact, which is more convenient for installation compared with line contact.
[0014] In some embodiments of the present application, the connecting piece includes: a first sub-part and a second sub-part which are connected; the first sub-part and the second sub-part are arranged at a certain angle; the second sub-part is located on the side of the first sub-part close to the first circuit board and is elastically connected to the elastic piece.
[0015] As can be seen from the above, the first sub-part and the second sub-part are arranged at a certain angle, which is convenient for adapting to the shape of the middle frame.
[0016] In some embodiments of the present application, the elastic sheet is disposed on a side of the first circuit board away from the groove; the elastic sheet includes: a body portion and elastic arms; the elastic arms extend from the body portion toward the connecting piece, and are elastically connected to a second sub-portion of the connecting piece.
[0017] As can be seen from the above, by elastically contacting the elastic arms with the second sub-portion and utilizing the elastic force of the elastic arms, the elastic arms are reliably contacted with the connecting piece, and it is convenient for installation.
[0018] In some embodiments of the present application, a positive projection of the elastic arm on the bottom wall of the middle frame is spaced from a positive projection of the free end of the first sub-board on the bottom wall of the middle frame.
[0019] As can be seen from the above, interference between the elastic arm and the limiting member can be avoided.
[0020] In some embodiments of the present application, the elastic sheet further includes: a connecting portion; the connecting portion is formed on a side of the body portion close to the first circuit board, extends from the body portion toward the first circuit board, and is fixedly connected to the first circuit board.
[0021] As can be seen from the above, a fixed connection between the elastic sheet and the first circuit board is achieved.
[0022] In some embodiments of the present application, connection holes are provided at an edge of the first circuit board; the connecting portion is inserted into the connection holes.
[0023] As can be seen from the above, the connection reliability is high, and space is saved.
[0024] In some embodiments of the present application, the middle frame includes: a metal part and a non-metal part that are mutually fitted; the connecting piece is electrically connected to the metal part.
[0025] As can be seen from the above, the metal part serves as an antenna to realize the antenna function, and the non-metal part can be plastic and has an insulating effect. The two are fitted to form the middle frame.
[0026] In some embodiments of the present application, a numerical range of a minimum distance between an edge of the connection hole and an edge of the first circuit board is: 0.12 mm - 0.52 mm.
[0027] As can be seen from the above, the processability of the first circuit board can be ensured; at the same time, the distance between the elastic sheet and the connecting piece is within a reasonable range, thereby ensuring the connection reliability between the two.
[0028] In some embodiments of the present application, the numerical range of the minimum distance between the first circuit board and the first sub-board of the limiting member is: 0.1 mm - 0.5 mm; the numerical range of the length of the first sub-board extending out of the groove is: greater than or equal to 0.1 mm.
[0029] As can be seen from the above, it is ensured that the first circuit board and the limiting member do not interfere, and the space occupied by the limiting member between the first circuit board and the connecting piece is small. Thus, it is ensured that the first sub-board can limit the connecting piece from moving towards the first circuit board.
[0030] In some embodiments of the present application, in the thickness direction of the middle frame, the numerical range of the minimum distance between the body portion of the elastic piece and the first sub-board of the limiting member is: 0 mm - 0.4 mm.
[0031] As can be seen from the above, it is ensured that the elastic piece and the limiting member do not interfere.
[0032] In some embodiments of the present application, the numerical range of the first gap is: 0.05 mm - 0.1 mm.
[0033] As can be seen from the above, while facilitating the installation of the limiting member, it is ensured that the groove can play a role in limiting the limiting member.
[0034] In some embodiments of the present application, the limiting member is a metal part with an insulating layer plated on the outside.
[0035] As can be seen from the above, it is ensured that no short circuit will occur when the limiting member contacts other parts.
[0036] An embodiment of the second aspect of the present application provides an electronic device, including the antenna assembly of any one of the embodiments of the first aspect.
[0037] As can be seen from the above, the electronic device of the embodiment of the present application includes the antenna assembly of any one of the embodiments of the first aspect. The antenna assembly includes a middle frame, a connecting piece, an elastic piece, a limiting member, and a first circuit board; the connecting piece is fixedly connected to the middle frame and is spaced apart from the first circuit board; the elastic piece is fixedly connected to the first circuit board and is elastically connected to the connecting piece to realize the antenna function; the limiting member is arranged between the connecting piece and the first circuit board and is used to limit the connecting piece from moving towards the first circuit board, so that the connecting piece and the first circuit board can be separated by the limiting member, and the connecting piece and the first circuit board do not interfere, thus avoiding the problem of damage to the first circuit board caused by the interference between the connecting piece and the first circuit board, thereby reducing costs, and further reducing the cost of the electronic device. Description of the Drawings
[0038] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other embodiments can also be obtained based on these drawings.
[0039] Figure 1 Structural schematic diagram of the electronic device according to the embodiment of the present application;
[0040] Figure 2 Exploded structural schematic diagram of the electronic device according to the embodiment of the present application;
[0041] Figure 3 is Figure 1 Rear view (the back cover is omitted);
[0042] Figure 4 is Figure 3 Partial enlarged schematic diagram at position P of ;
[0043] Figure 5 is Figure 4 A - A cross-sectional view of ;
[0044] Figure 6 is Figure 5 Partial enlarged schematic diagram at position Q of ;
[0045] Figure 7 Connection relationship diagram of the connecting piece, the limiting piece and the middle frame in the embodiment of the present application;
[0046] Figure 8 is Figure 4 Exploded structural schematic diagram from the first perspective;
[0047] Figure 9 is Figure 4 Exploded structural schematic diagram from the second perspective;
[0048] Figure 10 is Figure 7 Top view of ;
[0049] Figure 11 is Figure 10 Partial enlarged schematic diagram at position R of ;
[0050] Figure 12 is Figure 4 Partial enlarged schematic diagram at position S of ;
[0051] Figure 13 is Figure 4 Partial enlarged schematic diagram from another perspective.
[0052] Explanation of reference numerals:
[0053] Middle frame 100; metal part 101; non-metal part 102; groove 110; limiting block 120; connecting piece 200; first sub-part 210; second sub-part 220; elastic piece 300; body part 310; elastic arm 320; connecting part 330; limiting member 400; first sub-board 410; second sub-board 420; first circuit board 500; connecting hole 510; first gap a; second circuit board 600; USB device 610; battery 700; back glue 800; display screen 910; back cover 920. Specific embodiments
[0054] In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0055] In order to facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and roles. For example, the first swing arm and the second swing arm are used to distinguish different swing arms, and their sequence is not limited. Those skilled in the art can understand that terms such as "first" and "second" do not limit the quantity and position, and "first", "second", etc. do not necessarily mean different.
[0056] It should be noted that in the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplarily" or "for example" is intended to present relevant concepts in a specific manner.
[0057] With the continuous development of communication technology, electronic devices such as mobile phones, tablet computers and notebook computers are becoming more and more popular, and electronic devices realize communication functions through antennas. In related technologies, the metal part of the middle frame is used as an antenna, and the metal part of the middle frame and the circuit board are electrically connected through a connecting piece, so as to realize the antenna function. However, during the assembly process, the connecting piece is prone to interference with the circuit board, resulting in damage to the circuit board and inability to repair, and the cost loss is relatively high. For example, when the connecting piece is offset, in the thickness direction of the electronic device, the connecting piece and the circuit board are overlapped, resulting in the circuit board being squeezed and deformed and cracked after assembly, and unable to be repaired. In order to solve the above technical problems, the embodiments of the present application propose an antenna assembly and an electronic device.
[0058] The electronic device provided by the embodiments of the present application may be a terminal product such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), etc. The embodiments of the present application do not limit the specific type of the electronic device.
[0059] For the convenience of description, in the following embodiments, a mobile phone is taken as an example of the electronic device to illustrate the structure of the electronic device.
[0060] As Figure 1 shown, Figure 1 is a schematic structural diagram of the electronic device according to the embodiments of the present application. Figure 1 In, the X direction is the width direction of the electronic device, the Y direction is the length direction of the electronic device, and the Z direction is the thickness direction of the electronic device. It can be understood that the coordinate system of the electronic device can be flexibly set according to actual needs. The present application only gives an example and should not be considered as a special limitation to the present application.
[0061] As Figure 2 shown, Figure 2 is a schematic exploded view of the electronic device according to the embodiments of the present application. The electronic device may include a display screen 910, a middle frame 100, a rear cover 920, a first circuit board 500, a second circuit board 600, and a battery 700. The display screen 910, the middle frame 100, and the rear cover 920 enclose an accommodation space, and the first circuit board 500, the second circuit board 600, and the battery 700 are all arranged in the accommodation space.
[0062] The materials of the middle frame 100 and the rear cover 920 include but are not limited to metal, ceramic, plastic, and glass. The materials of the middle frame 100 and the rear cover 920 may be the same or different. The embodiments of the present application do not limit this.
[0063] The display screen 910 can be a flexible display screen or a rigid display screen. For example, the display screen 910 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a quantum dot light emitting diodes (QLED) display screen, or a liquid crystal display (LCD), etc.
[0064] The first circuit board 500 and the second circuit board 600 are distributed along the Y direction. The first circuit board 500 and the second circuit board 600 can be fixed to the middle frame 100 by means of screw connection, gluing, snap connection, welding or the like. The first circuit board 500 and the second circuit board 600 can be rigid circuit boards, flexible circuit boards, or rigid-flex circuit boards. The first circuit board 500 and the second circuit board 600 can be connected by a flexible printed circuit (FPC). The first circuit board 500 and the second circuit board 600 can be made of the same material or different materials, and the present application does not limit this.
[0065] In addition, a universal serial bus (USB) device 610 can be integrated on the second circuit board 600. The USB device 610 can be a USB type-C interface device, a USB type-A interface device, a USB type Micro-B interface device, or a USB type-B interface device. Moreover, a socket is provided on the middle frame 100 at a position corresponding to the USB device 610. Accessories such as chargers, earphones, and data cables can be electrically connected to the USB device 610 via the socket to achieve power, signal, and data transmission.
[0066] In the Y direction, the battery 700 is located between the first circuit board 500 and the second circuit board 600. The battery 700 is used to supply power to the first circuit board 500, the second circuit board 600, and other electronic components. The battery 700 may include, but is not limited to, nickel-cadmium batteries, nickel-metal hydride batteries, lithium batteries, or other types of batteries containing bare battery cells. Moreover, in the electronic device provided by the embodiments of the present application, the number of the batteries 700 may be one or multiple. The specific number and arrangement of the batteries 700 may be set according to actual needs, and the embodiments of the present application do not limit this.
[0067] As Figure 3 and Figure 4 shown, Figure 3 is Figure 1 the rear view (the rear cover 920 is omitted) of Figure 4 is Figure 3 the partial enlarged schematic view at P of Figure 5 and Figure 6 shown, Figure 5 is Figure 4 the A-A cross-sectional view of Figure 6 is Figure 5 the partial enlarged schematic view at Q of
[0068] The antenna assembly according to the embodiment of the present application includes a middle frame 100, a connecting piece 200, a spring piece 300, a limiting piece 400, and a first circuit board 500; the connecting piece 200 is fixedly connected to the middle frame 100 and is arranged at an interval from the first circuit board 500; the spring piece 300 is fixedly connected to the first circuit board 500 and is elastically connected to the connecting piece 200, thereby realizing the antenna function; the limiting piece 400 is arranged between the connecting piece 200 and the first circuit board 500 and is used to limit the connecting piece 200 from moving towards the direction close to the first circuit board 500, so that the connecting piece 200 and the first circuit board 500 can be separated by the limiting piece 400, and the connecting piece 200 and the first circuit board 500 will not interfere with each other, thereby avoiding the problem of damage to the first circuit board 500 caused by the interference between the connecting piece 200 and the first circuit board 500, and thus reducing the cost.
[0069] Optionally, the first circuit board 500 may be a main board, and the connecting piece 200 may be a reed; the spring piece 300 contacts the reed to realize the electrical connection between the middle frame 100 and the main board.
[0070] In some embodiments of the present application, such as Figure 6 and Figure 7 shown, Figure 7 is a connection relationship diagram of the connecting piece 200, the limiting piece 400, and the middle frame 100 in the embodiment of the present application. The middle frame 100 is recessed in the direction away from the first circuit board 500 to form a groove 110; the limiting piece 400 is fixedly arranged in the groove 110; the first end of the limiting piece 400 extends out of the groove 110 and is located between the connecting piece 200 and the first circuit board 500, and is used to limit the connecting piece 200 from moving towards the direction close to the first circuit board 500. The limiting piece 400 is arranged in the groove 110, does not additionally occupy the internal accommodation space of the middle frame 100, does not affect the layout of other components, and is beneficial to the miniaturization design of the electronic device.
[0071] Such as Figure 7 shown, optionally, the groove 110 may be a rounded rectangular groove, with a regular shape, which is convenient for processing, and has no sharp corners, which is convenient for assembly and will not scratch the limiting piece 400.
[0072] In other some embodiments of the present application, the groove 110 may also be a circular groove, an oval groove, a rectangular groove, etc., and the present application does not make any limitations in this regard.
[0073] In some embodiments of the present application, such as Figures 6 to 8 shown, Figure 8 is Figure 4The schematic diagram of the exploded structure from the first perspective shows that the stopper 400 is an L-shaped plate structure, including a first sub-plate 410 and a second sub-plate 420 connected and arranged; the second sub-plate 420 is arranged at the bottom of the groove 110; the first sub-plate 410 extends from one end of the second sub-plate 420 along the inner wall of the groove 110 to the outside of the groove 110 and extends out of the groove 110; the free end of the first sub-plate 410 is located between the connecting piece 200 and the first circuit board 500. Such an arrangement ensures that the stopper 400 occupies a small space between the connecting piece 200 and the first circuit board 500, which is conducive to reducing the distance between the connecting piece 200 and the first circuit board 500, making the component layout more compact.
[0074] Alternatively, if Figures 6 to 8 As shown, the limiting member 400 can be fixed in the groove 110 by means of adhesive 800 . Specifically, the adhesive 800 can be disposed at the bottom of the groove 110 and fixedly connected to the second sub-board 420 .
[0075] In some embodiments of the present application, the numerical range of the length of the first sub-board 410 extending out of the groove 110 is: greater than or equal to 0.1 mm, that is, the numerical range of the distance that the end face of the free end of the first sub-board 410 is higher than the notch of the groove 110 is greater than or equal to 0.1 mm, thereby ensuring that the first sub-board 410 can limit the movement of the connecting plate 200 in the direction close to the first circuit board 500.
[0076] like Figure 8 As shown, the first sub-plate 410 is rectangular, so as to facilitate its fit with the inner wall of the groove 110 .
[0077] In some embodiments of the present application, Figures 9 to 11 As shown, Figure 9 yes Figure 4 Schematic diagram of the decomposition structure of the second perspective, Figure 10 yes Figure 7 A top view of Figure 11 yes Figure 10 The partial enlarged schematic diagram of the R of the second sub-plate 420 shows a cross shape; one end of the second sub-plate 420 is connected to the first sub-plate 410, and there is a first gap a between at least two of the remaining three ends and the inner wall of the groove 110; the first sub-plate 410 is tightly fitted with the inner wall of the groove 110 near the connecting piece 200. This arrangement is convenient for installation, and the remaining three ends of the cross-shaped second sub-plate 420 can be in point contact with the inner wall of the groove 110, which is easier to install than line contact. Figure 11 As shown, the contact point between the second sub-board 420 and the groove 110 avoids the arc-shaped part of the groove 110, which is convenient for installation; during the assembly process, the first sub-board 410 and the inner wall of the groove 110 close to the connecting piece 200 can be tightly fitted, and then the second sub-board 420 can be pressed into the bottom of the groove to ensure the accuracy of the assembly position.Figure 11 In the illustrated embodiment, there is a first gap a between the three free ends of the second sub-board 420 and the inner wall of the groove 110.
[0078] As Figure 11 shown, the numerical range of the first gap a is: 0.05 mm - 0.1 mm, which facilitates the installation of the limiting member 400 while ensuring that the groove 110 can play a role in limiting the limiting member 400.
[0079] In some embodiments of the present application, as Figure 11 and Figure 12 shown, Figure 12 is Figure 4 a partial enlarged schematic view of the S position of
[0080] As Figure 11 shown, a limiting block 120 may be provided on the middle frame 100. In the Y direction, the limiting block 120 and the connecting piece 200 are adjacent to each other. The limiting block 120 is used to limit the displacement of the connecting piece 200 in the Y direction, and at the same time, the limiting block 120 can play a positioning role during the assembly of the connecting piece 200 and the middle frame 100.
[0081] In some embodiments of the present application, as Figure 11 and Figure 12 shown, Figure 12 is Figure 4 a partial enlarged schematic view of the S position of Figure 11 The connecting piece 200 includes a first sub-part 210 and a second sub-part 220 which are connected; the first sub-part 210 and the second sub-part 220 are arranged at a certain angle; the second sub-part 220 is located on the side of the first sub-part 210 close to the first circuit board 500 and is elastically connected to the elastic piece 300. The first sub-part 210 and the second sub-part 220 are arranged at a certain angle, which is convenient for adapting to the shape of the middle frame 100. Specifically, the first sub-part 210 can be welded (spot welded) and fixed to the metal part 101 of the middle frame 100. As
[0082] Figure 11In the illustrated embodiment, in the Y direction, the length of the first sub - part 210 is greater than the length of the second sub - part 220. In some other embodiments of the present application, the length of the first sub - part 210 may also be less than or equal to the length of the second sub - part 220, and the present application does not make any limitation in this regard.
[0083] In some embodiments of the present application, as Figure 13 shown, Figure 13 is Figure 4 a partial enlarged schematic view from another perspective. The middle frame 100 includes a mutually - fitted metal part 101 and a non - metal part 102; the connecting piece 200 is electrically connected to the metal part 101. The metal part 101 serves as an antenna to achieve the antenna function, and the non - metal part 102 can be plastic and has an insulating effect. The two are fitted to form the middle frame 100.
[0084] In some embodiments of the present application, return to reference Figure 6 , the elastic piece 300 is arranged on the side of the first circuit board 500 away from the groove 110; the elastic piece 300 includes a body part 310 and elastic arms 320; the elastic arms 320 extend from the body part 310 towards the direction close to the connecting piece 200 and are elastically connected to the second sub - part 220 of the connecting piece 200. By using the elastic contact between the elastic arms 320 and the second sub - part 220 and the elastic force of the elastic arms 320, the elastic arms 320 can be reliably in contact with the connecting piece 200, and it is convenient for installation.
[0085] In some embodiments of the present application, as Figure 6 shown, the orthographic projection of the elastic arms 320 on the bottom wall of the middle frame 100 is spaced from the orthographic projection of the free end of the first sub - plate 410 on the bottom wall of the middle frame 100, so as to avoid interference between the elastic arms 320 and the limiting member 400.
[0086] In some embodiments of the present application, as Figure 6 shown, in the thickness direction of the middle frame 100, that is, in the thickness direction of the electronic device, the numerical range of the minimum distance c between the body part 310 of the elastic piece 300 and the first sub - plate 410 of the limiting member 400 is: 0 mm - 0.4 mm; to ensure that there is no interference between the elastic piece 300 and the limiting member 400.
[0087] In some embodiments of the present application, as Figure 6 shown, the elastic piece 300 further includes a connecting part 330; the connecting part 330 is formed on the side of the body part 310 close to the first circuit board 500, extends from the body part 310 towards the first circuit board 500, and is fixedly connected to the first circuit board 500, thereby realizing the fixed connection between the elastic piece 300 and the first circuit board 500.
[0088] In some embodiments of the present application, as Figure 6As shown, a connection hole 510 is provided at the edge of the first circuit board 500; the connection part 330 is inserted into the connection hole 510, which has high connection reliability and saves space. Optionally, the connection part 330 can be fixed to the first circuit board 500 by welding.
[0089] In some embodiments of the present application, the minimum distance between the edge of the connecting hole 510 and the edge of the first circuit board 500 has a numerical range of 0.12 mm to 0.52 mm, thereby ensuring the machinability of the first circuit board 500; at the same time, ensuring that the distance between the spring piece 300 and the connecting piece 200 is within a reasonable range, thereby ensuring the reliability of the connection between the two.
[0090] like Figure 11 and Figure 12 As shown, the circle indicated by the dotted line on the second sub-plate 420 is the virtual contact circle of the spring piece 300, and the position where the center of the circle is located is the setting position of the elastic arm 320; the virtual contact circle of the spring piece 300 is related to the properties of the spring piece 300 itself, and its radius is a preset value, and the preset value range may be 1.2-1.6mm; the virtual contact circle should be formed within the range of the second sub-plate 420; Figure 11 and Figure 12 In the illustrated embodiment, the spring piece 300 is eccentrically arranged on the second sub-plate 420, that is, the center of the virtual contact circle is not at the center position of the second sub-plate 420, so as to avoid the limiting member 400, prevent the spring piece 300 from interfering with the limiting member 400, and prevent scratches during the assembly process.
[0091] like Figure 12 As shown, the spring piece 300 is installed at an angle, and there is an angle between the extension direction of the elastic arm 320 and the extension direction of the limit member 400, which can better avoid the limit member 400 to prevent interference between the two, and ensure the installation distance between the spring piece 300 and the connecting piece 200 to avoid poor contact due to excessive distance.
[0092] like Figure 12 As shown, the first circuit board 500 avoids the limiting member 400 by following the shape, which not only ensures the processability of the edge of the first circuit board 500, but also simultaneously retains the gap to avoid the limiting member 400 from colliding with the first circuit board 500.
[0093] In some embodiments of the present application, Figure 12 As shown, the minimum distance b between the first circuit board 500 and the first sub-board 410 of the limiting member 400 has a numerical range of 0.1 mm to 0.5 mm, thereby ensuring that the first circuit board 500 and the limiting member 400 will not interfere with each other, and the limiting member 400 occupies a smaller space between the first circuit board 500 and the connecting plate 200.
[0094] In some embodiments of the present application, the limiting member 400 may be a metal member with an insulating layer plated on the outside. This ensures that no short circuit will occur when the limiting member 400 comes into contact with other parts. Preferably, the limiting member 400 may be a copper sheet with paint sprayed on the outside.
[0095] During the assembly process of the electronic device, the limiting member 400 can be first arranged in the groove 110, and then the connecting piece 200 is fixed to the middle frame 100; then the first circuit board 500 equipped with the elastic piece 300 is arranged on the middle frame 100, and the elastic connection between the elastic piece 300 and the connecting piece 200 is completed.
[0096] In the antenna assembly of the embodiments of the present application, a limiting member 400 (limiting steel sheet) is added between the first circuit board 500 and the connecting piece 200 (reed). The limiting member 400 is positioned by the vertical surface of the groove 110 (recess) of the middle frame 100 and fixed by the back glue 800. On the basis of ensuring a reasonable distance between structural members, the movement of the connecting piece 200 towards the first circuit board 500 is restricted, ensuring the processability of the middle frame 100.
[0097] An embodiment of the second aspect of the present application provides an electronic device, including the antenna assembly of any embodiment of the first aspect.
[0098] The electronic device of the embodiments of the present application includes the antenna assembly of any embodiment of the first aspect. The antenna assembly includes a middle frame 100, a connecting piece 200, an elastic piece 300, a limiting member 400, and a first circuit board 500; the connecting piece 200 is fixedly connected to the middle frame 100 and is arranged at an interval from the first circuit board 500; the elastic piece 300 is fixedly connected to the first circuit board 500 and is elastically connected to the connecting piece 200, thereby realizing the antenna function; the limiting member 400 is arranged between the connecting piece 200 and the first circuit board 500 and is used to restrict the movement of the connecting piece 200 in the direction close to the first circuit board 500, so that the connecting piece 200 and the first circuit board 500 can be separated by the limiting member 400, and the connecting piece 200 and the first circuit board 500 will not interfere with each other, thereby avoiding the problem of damage to the first circuit board 500 caused by the interference between the connecting piece 200 and the first circuit board 500, thus reducing costs, and further reducing the cost of the electronic device.
[0099] It should be noted that in the examples and description of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.
[0100] Although this application has been illustrated and described by reference to certain preferred embodiments thereof, those of ordinary skill in the art should understand that various changes may be made therein in form and detail without departing from the spirit and scope of this application.
Claims
1. An antenna assembly, characterized in that: include: A middle frame, a connecting piece, a spring, a limiting piece and a first circuit board; The middle frame has a receiving space, and the connecting piece, the spring piece, the limiting member and the first circuit board are all arranged in the receiving space; The connecting piece is fixedly connected to the middle frame and spaced apart from the first circuit board; The spring sheet is fixedly connected to the first circuit board and elastically connected to the connecting sheet; The limiting member is disposed between the connecting piece and the first circuit board, and is used to limit the connecting piece from moving in a direction close to the first circuit board.
2. The antenna assembly according to claim 1, characterized in that: The middle frame is recessed in a direction away from the first circuit board to form a groove; The limiting member is fixedly disposed in the groove; the first end of the limiting member extends out of the groove and is located between the connecting piece and the first circuit board, and is used to limit the movement of the connecting piece toward the first circuit board.
3. The antenna assembly according to claim 2, characterized in that: The orthographic projection of the first circuit board on the bottom wall of the middle frame covers a portion of the groove away from the connecting piece; The orthographic projection of the connecting piece on the bottom wall of the middle frame is spaced apart from the groove.
4. The antenna assembly according to claim 2, characterized in that: The position-limiting member is an L-shaped plate structure, comprising: a first sub-plate and a second sub-plate connected and arranged; The second sub-plate is arranged at the bottom of the groove; The first sub-board extends from one end of the second sub-board along the inner wall of the groove toward the outside of the groove and extends out of the groove; the free end of the first sub-board is located between the connecting piece and the first circuit board.
5. The antenna assembly according to claim 4, characterized in that: The second sub-plate is in a cross shape; one end of the second sub-plate is connected to the first sub-plate, and a first gap exists between at least two of the remaining three ends and the inner wall of the groove; The first sub-plate is tightly fitted to a portion of the inner wall of the groove close to the connecting piece.
6. The antenna assembly according to claim 4 or 5, characterized in that: The connecting piece comprises: a first sub-section and a second sub-section which are connected and arranged; The first sub-section and the second sub-section are arranged at a certain angle; the second sub-section is located on a side of the first sub-section close to the first circuit board and is elastically connected to the spring.
7. The antenna assembly according to claim 6, characterized in that: The elastic sheet is arranged on a side of the first circuit board away from the groove; The spring sheet comprises: a main body and an elastic arm; The elastic arm extends from the main body toward the direction approaching the connecting piece and is elastically connected to the second sub-portion of the connecting piece.
8. The antenna assembly according to claim 7, characterized in that: The orthographic projection of the elastic arm on the bottom wall of the middle frame is spaced apart from the orthographic projection of the free end of the first sub-board on the bottom wall of the middle frame.
9. The antenna assembly according to claim 7, characterized in that: The spring piece further includes: a connecting portion; The connecting portion is formed on a side of the main body portion close to the first circuit board, extends from the main body portion toward the first circuit board, and is fixedly connected to the first circuit board.
10. The antenna assembly according to claim 9, characterized in that: A connection hole is provided at the edge of the first circuit board; The connecting portion is inserted into the connecting hole.
11. The antenna assembly according to claim 1, characterized in that: The middle frame includes: a metal part and a non-metal part that fit into each other; The connecting piece is electrically connected to the metal portion.
12. The antenna assembly according to claim 10, characterized in that: The value range of the minimum distance between the edge of the connecting hole and the edge of the first circuit board is: 0.12mm-0.52mm.
13. The antenna assembly according to claim 4, characterized in that: The minimum distance between the first circuit board and the first sub-board of the stopper is in the range of 0.1 mm to 0.5 mm. The length of the first sub-plate extending out of the groove has a numerical range of greater than or equal to 0.1 mm.
14. The antenna assembly according to claim 7, characterized in that: In the thickness direction of the middle frame, the minimum distance between the main body of the spring sheet and the first sub-plate of the limiting member has a numerical range of 0 mm to 0.4 mm.
15. The antenna assembly according to claim 5, characterized in that: The value range of the first gap is: 0.05mm-0.1mm.
16. The antenna assembly according to claim 1, characterized in that The limiting member is a metal member with an insulating layer plated on the outside.
17. An electronic device, characterized in that: The antenna assembly comprises any one of claims 1 to 16.