Mid-frame components and electronic devices

Abstract

This disclosure relates to a mid-frame assembly and an electronic device. The mid-frame assembly includes a frame, a support portion, and a tuning assembly. The frame has a slit to form a frame antenna. The support portion is connected to the frame and forms a battery compartment. The support portion has a mounting area. The tuning assembly includes a mounting portion and a tuning device disposed on the mounting portion. The mounting portion is located in the mounting area and connected to the frame. The tuning device is disposed opposite to the slit. In the mid-frame assembly of this disclosure, by setting the tuning assembly in the mounting area on the support portion that forms the battery compartment, the original empty area is used to realize the upper frame of the tuning device, thereby tuning the frame antenna. This improves the performance of the frame antenna without increasing the length of the antenna stubs or the internal design space of the electronic device, which is beneficial to improving the user's communication experience and realizing the miniaturization design of the electronic device.

Description

Technical Field

[0001] This disclosure relates to the field of antenna technology, and more particularly to a mid-frame assembly and electronic device. Background Technology

[0002] As users' functional requirements for electronic device antennas become increasingly diverse, electronic devices now need to incorporate antennas for multiple signal frequency bands. However, due to the trend towards miniaturization and thinner designs in electronic devices, the internal design space of these devices often cannot meet the stub length requirements for low-frequency antennas, leading to performance degradation and impacting the user's communication experience. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a mid-frame component and an electronic device.

[0004] According to a first aspect of this disclosure, a mid-frame component is provided, comprising: The frame has gaps to form a frame antenna; A support portion, connected to the frame, the support portion being used to form a battery compartment, and the support portion being provided with an installation area; A tuning assembly includes a mounting portion and a tuning device disposed on the mounting portion. The mounting portion is disposed in the mounting area and connected to the frame. The tuning device is disposed opposite to the gap.

[0005] In this disclosure, by setting a tuning component in the mounting area on the support portion that constitutes the battery compartment, and utilizing the empty area in the battery compartment to realize the upper frame of the tuning device, the frame antenna is tuned. This improves the performance of the frame antenna without increasing the length of the antenna stubs or the internal design space of the electronic device, which is beneficial to improving the user's communication experience and realizing the miniaturization design of the electronic device.

[0006] In one possible implementation, the mounting portion includes a first unit and a second unit stacked together, the first unit being connected to the frame, and the second unit being disposed on the side of the first unit away from the frame, and the second unit being connected to the first unit. The tuning device is installed in the second unit and passes through the first unit.

[0007] In this disclosure, by configuring the mounting part as a first unit and a second unit connected together, the tuning device is mounted on the second unit, the second unit is connected to the first unit, and the first unit is connected to the frame, thereby providing protection for the tuning device and improving connection stability, reducing the risk of the tuning device failing and falling, and improving the stability of the tuning device mounting and the reliability of the electrical connection.

[0008] In one possible implementation, the first unit includes a metal pad, and the second unit includes a circuit board; The circuit board is welded to the metal gasket, and the metal gasket is welded to the frame.

[0009] In this disclosure, the first unit includes a metal gasket, and the second unit includes a circuit board. The circuit board and the metal gasket, as well as the metal gasket and the frame, are all welded together, which improves the structural stability of the mounting part and the reliability of the connection between the tuning component and the frame.

[0010] In one possible implementation, the tuning device is electrically connected to the circuit board, and the tuning device is fixed to the circuit board by adhesive bonding.

[0011] In this disclosure, the tuning device is electrically connected to the circuit board, thereby enabling the tuning device to be electrically connected to the frame through the circuit board and metal pads, so as to tune the frame antenna through the tuning device. Furthermore, the tuning device is fixed to the circuit board by adhesive bonding, which improves the stability of the connection between the tuning device and the circuit board, reduces the risk of the tuning device falling off due to failure, and thus improves the stability and reliability of the connection between the tuning device and the frame.

[0012] In one possible implementation, the metal gasket includes at least two independent gasket bodies, which are joined together to form a clearance area, and the tuning device is mounted in the clearance area.

[0013] In this disclosure, the metal spacers are configured as at least two independent spacer bodies to form a clearance area for mounting the tuning device, thereby avoiding interference between the metal spacers and the tuning device. Furthermore, the tuning device is connected to the frame by connecting the spacer bodies to the frame, thereby achieving the tuning effect on the frame antenna and improving the low-frequency performance of the frame antenna.

[0014] In one possible implementation, the metal pad includes a via through which the tuning device is mounted.

[0015] In this disclosure, the metal pad is configured to have a via, and the tuning device is installed in the via. Only one metal pad needs to be set and the hole needs to be made, eliminating the need for multiple metal pads. This simplifies the processing and assembly process. The structure of the whole metal pad is also more stable, which helps to improve the stability and reliability of the electrical connection between the tuning device and the frame antenna, and also helps to improve the low-frequency performance of the frame antenna.

[0016] In one possible implementation, the metal pad is bonded to the frame according to a preset adhesive path, the preset adhesive path including a first adhesive path and a second adhesive path, the first adhesive path and the second adhesive path at least partially overlap.

[0017] In this disclosure, the metal gasket and the frame are bonded together according to a preset dispensing path, which includes a first dispensing path and a second dispensing path. This helps to standardize the dispensing path, control the amount of adhesive, improve the bonding effect, and avoid material waste caused by adhesive overflow. The addition of dispensing also provides a certain degree of protection for the tuning components. Furthermore, the metal gasket and the frame are connected by a combination of welding and dispensing, which further improves the stability and reliability of the connection between the tuning components and the frame.

[0018] In one possible implementation, there is a gap between the side of the circuit board away from the frame and the sidewall of the battery compartment.

[0019] In this disclosure, a gap exists between the side of the circuit board furthest from the frame and the side wall of the battery compartment. This prevents interference from affecting the tuning of the tuning devices on the frame antenna, thereby improving the stability and reliability of the electrical connection.

[0020] In one possible implementation, the frame is provided with a wiring groove, and the wiring groove and the tuning device are located on different sides of the mounting portion.

[0021] In this disclosure, the axial compatibility between the wiring trough and the tuning device is fully considered. The wiring trough and the tuning device are set on different sides of the mounting part to reduce the risk of overlap and collision between the wiring trough and the tuning device. This avoids the tuning device from falling off and failing due to collision of the wiring trough, and also reduces the interference of the wires in the wiring trough on the tuning effect of the tuning device. This is conducive to improving the structural stability and tuning effect of the tuning device.

[0022] In one possible implementation, the seam is located at the end of a first side of the frame, the first side extending along the length of the frame.

[0023] In this disclosure, the slit is located at the end of the first side of the frame, and the first side extends along the length of the frame, so that the slit and the tuning component correspond to the side wall of the battery compartment. The tuning component is set in the space of the battery compartment area, which effectively improves the space utilization rate and is conducive to the miniaturization of the antenna structure.

[0024] According to a second aspect of this disclosure, an electronic device is provided, including the mid-frame component described in the first aspect of this disclosure.

[0025] In this disclosure, the electronic device includes the aforementioned mid-frame assembly. By installing a tuning component in the mounting area at the battery compartment, the frame antenna is tuned. The tuning device is positioned relative to the gap, allowing the upper frame of the tuning device to be installed without increasing the design space. This increases the tuning points of the antenna, thereby increasing the tuning freedom of the antenna. Under the original length of the antenna parasitic stub, the low-frequency antenna performance of the electronic device is effectively improved, which is beneficial to the miniaturization design of the electronic device.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0028] Figure 1 This is a schematic diagram of the structure of a mid-frame component according to an exemplary embodiment.

[0029] Figure 2 This is a cross-sectional schematic diagram of a mid-frame assembly according to an exemplary embodiment.

[0030] Figure 3 This is a partial schematic diagram of a mid-frame component according to an exemplary embodiment.

[0031] Figure 4 This is a schematic diagram of the structure of a tuning component according to an exemplary embodiment.

[0032] Figure 5 This is a preset dispensing path diagram of a tuning component shown according to an exemplary embodiment.

[0033] Figure 6 This is a schematic diagram of the dispensing area of ​​a tuning assembly according to an exemplary embodiment.

[0034] Figure 7 This is a comparison chart of the low-frequency radiation performance of the antenna before and after adopting the scheme disclosed herein.

[0035] Figure 8 This is a comparison chart of the low-frequency sensitivity performance of the antenna before and after adopting the scheme disclosed herein. Detailed Implementation

[0036] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0037] As users' functional requirements for electronic device antennas become increasingly diverse, electronic devices now need to incorporate antennas for multiple signal frequency bands. However, with the trend towards miniaturization and thinner designs in electronic devices, the limited internal design space often prevents the fulfillment of the stub length requirements for low-frequency antennas, leading to performance degradation and impacting the user's communication experience.

[0038] To address the aforementioned technical problems, this disclosure proposes a mid-frame assembly and an electronic device. In the mid-frame assembly of this disclosure, a tuning component is provided in the mounting area on the support portion that forms the battery compartment. The existing empty area is used to realize the upper frame of the tuning device, thereby tuning the frame antenna. This improves the performance of the frame antenna without increasing the length of the antenna stubs or the internal design space of the electronic device, which is beneficial for improving the user's communication experience and realizing the miniaturization design of the electronic device.

[0039] According to an exemplary embodiment, such as Figures 1-6 As shown, this embodiment of the disclosure provides a mid-frame assembly, which includes a frame 10, a support portion 20, and a tuning assembly 30. The frame 10 has a slit 11, dividing it into at least two segments to form a frame antenna. The support portion 20 is connected to the frame 10 and forms a battery compartment 21. The support portion 20 also has a mounting area 201 for mounting the tuning assembly 30. The tuning assembly 30 is used to tune the frame antenna to improve its performance.

[0040] The tuning assembly 30 includes a mounting portion 31 and a tuning device 32. The tuning device 32 is disposed on the mounting portion 31, which is connected to the frame 10. The tuning device 32 is positioned opposite to the gap 11, and the gap 11 can also provide some clearance for the tuning device 32. Since the size of a single tuning device 32 is small, such as a commonly used 0201 capacitor, it is difficult to directly connect it to the gap 11. Furthermore, when the tuning device 32 is positioned at the gap 11, the risk of it failing and falling off is relatively high. Therefore, by connecting the mounting portion 31 to the frame 10 and placing the tuning device 32 on the mounting portion 31, the risk of failure and falling off of the tuning device 32 can be effectively reduced, improving the stability and reliability of the electrical connection. The tuning device 32 can be a capacitor and / or an inductor. This embodiment does not impose excessive restrictions on the selection of the tuning device 32 or the corresponding tuning circuit design.

[0041] Currently, in electronic devices, low-frequency antennas typically require a stub length of at least 40mm to effectively utilize their quarter-mode excitation for radiation performance and ensure a relatively good communication experience. However, current antenna stacking solutions require the antenna structure to simultaneously meet the needs of multiple signal frequency bands. For example, the antenna structure needs to be compatible with dual LB bands (Low Band, frequency range 300MHz~700MHz), four MHB bands (Mid-High Band, frequency range 1.5GHz~3.0GHz), and the N78 band (3300MHz~3800MHz), dual WiFi (WiFi 2.4G band and WiFi 5G band, frequency ranges 2.0GHz~2.4835GHz and 5.150GHz~5.825GHz respectively), and dual GPS (Global Positioning) bands. The Global Positioning System (GPS) commonly uses frequency bands such as L1, L2, and L5. The center frequency of the L1 band is 1575.42MHz, the center frequency of the L2 band is 1227.60MHz, and the center frequency of the L5 band is 1176.45MHz. It is used for satellite communication (frequency range of 1GHz~10GHz), UWB (Ultra Wide Band, frequency range of 3.1GHz~10.6GHz), and other design requirements. However, the internal space of electronic devices is limited, so the stacking of antenna structures is difficult. It is difficult to meet the stub length required for low-frequency antennas within a limited space, which leads to the deterioration of the low-frequency antenna performance of electronic devices and greatly affects the user experience.

[0042] By adopting the technical solution of this disclosure embodiment, the frame antenna is tuned by installing the tuning component 30 in the mounting area 201 of the battery compartment 21. The tuning device 32 is positioned opposite the gap 11. The tuning component 30 occupies a small space and effectively utilizes the original vacant area of ​​the corresponding position of the battery compartment 21. The upper frame of the tuning device 32 can be implemented without increasing the design space, increasing the tuning point of the antenna and thus increasing the tuning freedom of the antenna. By adding the tuning component 30 to tune the aperture of the frame antenna, the low-frequency performance of the antenna can be effectively improved within the original length of the antenna parasitic stub. With the trend of increasingly limited antenna design space in electronic devices, the technical solution of this disclosure embodiment has excellent development prospects and is easy to apply in different electronic device designs, which is conducive to achieving standardization and reuse.

[0043] In this embodiment, the mid-frame assembly provides a tuning component 30 within the mounting area 201 on the support portion 20 that forms the battery compartment 21. The upper frame of the tuning device 32 is achieved by utilizing the empty area in the battery compartment 21, thereby tuning the frame antenna. This improves the performance of the frame antenna without increasing the length of the antenna stubs or the internal design space of the electronic device, which is beneficial for improving the user's communication experience and realizing the miniaturization design of the electronic device.

[0044] In some embodiments, the tuning device 32 is configured as a capacitor. When the tuning device 32 is a capacitor, its two ends are connected to the frame antennas at both ends of the gap 11 via the mounting part 31. By reasonably designing the capacitance value, the resonant point can be moved and the resonant frequency changed, thereby optimizing frequency stability and impedance matching and improving the low-frequency performance of the frame antenna. The tuning device 32 can also be configured as an inductor. When the tuning device 32 is an inductor, one end of the inductor is connected to the frame antenna, and the other end is grounded, thereby achieving a similar tuning effect. Of course, it is understood that the tuning assembly 30 can also be configured with multiple tuning devices 32, including capacitors and inductors. This disclosure does not impose too many restrictions on the specific type and configuration of the tuning device 32. Those skilled in the art can make adaptive adjustments according to different design requirements. Of course, it is understood that the tuning device 32 can also be a resistor, or a combination circuit of one or more of inductors, resistors, and capacitors. Different tuning devices 32 can be selected according to the tuning needs of the frame antenna, but the mounting method described in the above embodiments is used for installation.

[0045] In some embodiments, the mounting portion 31 includes a first unit 311 and a second unit 312 stacked together. Figure 2 Taking the orientation shown as an example, the first unit 311 and the second unit 312 are along... Figure 2The stacked arrangement shown is arranged from top to bottom, that is, stacked from near the frame 10 to away from the frame 10. The second unit 312 is connected to the first unit 311, and the first unit 311 is connected to the frame 10. The second unit 312 is located on the side of the first unit 311 away from the frame 10. The tuning device 32 is installed on the side of the second unit 312 near the first unit 311, and the tuning device 32 passes through the first unit 311. In other words, the tuning device 32 is installed on the side of the second unit 312 away from the battery compartment 21, thereby avoiding the risk of collision between the tuning device 32 and the battery compartment 21.

[0046] In this embodiment of the present disclosure, by setting the mounting part 31 as a first unit 311 and a second unit 312 connected together, the tuning device 32 is mounted on the second unit 312, the second unit 312 is connected to the first unit 311, and the first unit 311 is connected to the frame 10, thereby providing protection for the tuning device 32 and improving the connection stability, reducing the risk of the tuning device 32 failing and falling, and improving the stability of the installation of the tuning device 32 and the reliability of the electrical connection.

[0047] In one example, the first unit 311 includes a metal pad, and the second unit 312 includes a circuit board. The circuit board can be, for example, a PCB (Printed Circuit Board) or an FPC (Flexible Printed Circuit), and the metal pad can be, for example, a sheet-like conductive structure made of metal or alloy such as copper or nickel alloy. The circuit board may also have circuit structures such as tuning circuits. The circuit board is soldered to the metal pad, and the metal pad is soldered to the frame 10. The soldering method can be spot welding, and the metal pad has multiple arrayed solder points 3113 for soldering. Of course, it is understood that other soldering methods can be selected between the circuit board and the metal pad, and between the metal pad and the frame 10; this embodiment does not impose excessive limitations on these methods.

[0048] In this embodiment of the disclosure, the first unit 311 includes a metal pad, and the second unit 312 includes a circuit board. The circuit board and the metal pad, as well as the metal pad and the frame 10, are all welded together, which improves the structural stability of the mounting part 31 and the reliability of the connection between the tuning component 30 and the frame 10.

[0049] In some embodiments, the tuning device 32 is connected to a circuit board. For example... Figure 2 As shown, the tuning device 32 is electrically connected to the circuit board (i.e., the second unit 312), and the tuning device 32 is fixed to the circuit board by adhesive bonding, which improves the connection stability between the tuning device 32 and the circuit board. The circuit board is electrically connected to the frame 10 through metal pads, thereby making the tuning device 32 electrically connected to the frame 10 for tuning the frame antenna.

[0050] In this embodiment, the tuning device 32 is electrically connected to the circuit board, thereby enabling the tuning device 32 to be electrically connected to the frame 10 through the circuit board and metal pads, so as to tune the frame antenna through the tuning device 32. Furthermore, the tuning device 32 is fixed to the circuit board by adhesive bonding, which improves the stability of the connection between the tuning device 32 and the circuit board, reduces the risk of the tuning device falling off due to failure, and thus improves the stability and reliability of the connection between the tuning device 32 and the frame 10.

[0051] In some embodiments, the metal spacers can be arranged in various ways. For example, there can be at least two metal spacers, which together form a clearance space for accommodating the tuning device 32. Alternatively, there can be a single metal spacer with clearance holes for accommodating the tuning device 32.

[0052] In one example, the metal gasket comprises at least two independent gasket bodies 3111, such as Figure 4 As shown, at least two spacer bodies 3111 are spliced ​​together to form a clearance area 3112, and the tuning device 32 is installed in the clearance area 3112. In this embodiment of the present disclosure, the metal spacer includes two independent spacer bodies 3111, which are spaced apart on the circuit board. The space between the two spacer bodies 3111 is the clearance area 3112, and the tuning device 32 is installed in the clearance area 3112. That is, the two spacer bodies 3111 are respectively set in the clearance area 3112. Figure 2 The tuning device 32 is positioned on both sides of the metal spacer to prevent interference between the tuning device 32 and the metal spacer. Furthermore, the two spacer bodies 3111 are respectively connected to the frame 10 on both sides of the gap 11, thereby connecting the tuning device 32 between the two branches of the frame antenna for tuning.

[0053] In this embodiment, the metal pads are configured as at least two independent pad bodies 3111 to form a clearance area 3112 for mounting the tuning device 32, thereby avoiding interference between the metal pads and the tuning device 32. Furthermore, the tuning device 32 is connected to the frame 10 through the connection of the pad body 3111 and the frame, thereby achieving the tuning effect on the frame antenna and improving the low-frequency performance of the frame antenna.

[0054] In another example, the metal pad includes a via (not shown). The first unit 311 is configured as a metal pad with a via through which the tuning device 32 is mounted. The two ends of the metal pad are connected to the frame 10 on both sides of the slot 11, thereby connecting the tuning device 32 between the two stubs of the frame antenna for tuning.

[0055] In this embodiment, the metal pad is configured to have a via, and the tuning device 32 is installed in the via. Only one metal pad needs to be set and the hole needs to be made, eliminating the need for multiple metal pads. This simplifies the processing and assembly process, and the overall structure of the metal pad is more stable. This is beneficial for improving the stability and reliability of the electrical connection between the tuning device 32 and the frame antenna, and also for improving the low-frequency performance of the frame antenna.

[0056] In some embodiments, the metal gasket is connected to the frame 10 by adhesive bonding. For example... Figure 5 As shown, the metal gasket and Figure 2 The borders 10 are bonded together according to a preset adhesive dispensing path. The preset adhesive dispensing path includes a first adhesive dispensing path 41 and a second adhesive dispensing path 42. The first adhesive dispensing path 41 and the second adhesive dispensing path 42 have different directions and at least partially overlap to form a shape as shown in the image. Figure 6 The dispensing area 43 is shown. During bonding, dispensing can be performed first along the first dispensing path 41 and then along the second dispensing path 42, or first along the second dispensing path 42 and then along the first dispensing path 41. The dispensing direction can also be the opposite of the first dispensing path 41 and the second dispensing path 42, as long as a dispensing area 43 that roughly corresponds to the shape of the metal pad is formed between the metal pad and the frame 10. The dispensing area can cover at least two edges of the metal pad, or it can completely cover the metal pad, or at least partially extend beyond the range of the metal pad, in order to improve the reliability of the bonding connection. This embodiment does not impose too many limitations on this.

[0057] In this embodiment, the metal gasket and the frame 10 are bonded together according to a preset dispensing path, which includes a first dispensing path 41 and a second dispensing path 42. This helps to standardize the dispensing path, control the amount of adhesive, improve the bonding effect, and avoid material waste caused by adhesive overflow. The addition of dispensing also provides some protection for the tuning device 32. Furthermore, the metal gasket and the frame 10 are connected by a combination of welding and dispensing, which further improves the stability and reliability of the connection between the tuning component 30 and the frame 10.

[0058] In some embodiments, the metal pad and the frame 10, as well as the circuit board and the metal pad, can be connected by both welding and bonding, thereby further improving the reliability of the connection, enhancing the overall structural stability of the tuning assembly 30 and the reliability of the connection with the frame 10.

[0059] In some embodiments, a gap exists between the side of the circuit board (i.e., the second unit 312) away from the frame 10 and the sidewall of the battery compartment 21. This prevents interference from affecting the tuning of the tuning device 32 to the frame antenna, thereby improving the stability and reliability of the electrical connection.

[0060] In some embodiments, the frame 10 is provided with a wiring groove 12. For example... Figures 2-3 As shown, the wiring trough 12 and the tuning device 32 are disposed on different sides of the mounting portion 31. The wiring trough 12 is used to accommodate cables, wires, cables, and other wires used to transmit current and / or signals. The wiring trough 12 and the tuning device 32 are staggered in at least one of the thickness, length, and width directions of the mid-frame assembly, so that the wiring trough 12 and the tuning device 32 are located on different planes. This avoids collisions between the wiring trough 12 and the tuning device 32, which would increase the risk of the tuning device 32 falling off. It also avoids interference from the wiring in the wiring trough 12 on the tuning function of the tuning device 32, thereby improving the stability and reliability of the tuning.

[0061] In this embodiment, the axial compatibility between the wiring trough 12 and the tuning device 32 is fully considered. The wiring trough 12 and the tuning device 32 are arranged on different sides of the mounting part 31 to reduce the risk of overlap and collision between the wiring trough 12 and the tuning device 32. This avoids the tuning device 32 from falling off and failing due to collision with the wiring trough 12, and also reduces the interference of the wires in the wiring trough 12 on the tuning effect of the tuning device 32. This is beneficial to improving the structural stability and tuning effect of the tuning device 32.

[0062] In some embodiments, the slit 11 is provided at the end of a first side edge 101 of the frame 10, the first side edge 101 extending along the length direction of the frame 10. That is, with Figure 1 Taking the direction shown as an example, the first side 101 is the right side of the mid-frame assembly, the gap 11 is located at the lower right corner of the frame 10, and the tuning component 30 is located on the side wall of the battery compartment 21. Of course, it is understandable that, depending on the location of the battery compartment 21, the gap 11 can also be located on the left side, top side, or bottom side of the mid-frame assembly, as long as it can be ensured that the tuning component 30 is correspondingly set with the gap 11 near the battery compartment 21, thereby achieving the effect of improving antenna performance without increasing the internal design space.

[0063] In this embodiment, the slit 11 is disposed at the end of the first side 101 of the frame 10. The first side 101 extends along the length direction of the frame 10, so that the slit 11 and the tuning component 30 correspond to the side wall of the battery compartment 21. The tuning component 30 is disposed in the space of the battery compartment 21 area, which effectively improves the space utilization rate and is conducive to the miniaturization of the antenna structure.

[0064] In some embodiments, the gap 11 may be at least partially filled with a decorative element 111, which may be made of materials such as resin or plastic, thereby improving the structural strength of the gap 11 while enhancing the aesthetic appearance of the mid-frame assembly.

[0065] The following will combine Figures 7-8 The beneficial effects of the technical solutions of the embodiments of this disclosure will be explained.

[0066] like Figure 7 The figure shown is a comparison of the low-frequency radiation performance of the antenna before and after adopting the scheme of this disclosure embodiment. Figure 7 The vertical axis in the figure represents the total radiated power (TRP), measured in dB. Plot a represents the free-space active radiation performance of the low-frequency antenna before adopting the scheme of this embodiment; plot b represents the left-handed active radiation performance of the low-frequency antenna before adopting the scheme of this embodiment; and plot c represents the left-handed active radiation performance of the low-frequency antenna before adopting the scheme of this embodiment. Plot A represents the free-space active radiation performance of the low-frequency antenna after adopting the scheme of this embodiment; plot B represents the left-handed active radiation performance of the low-frequency antenna after adopting the scheme of this embodiment; and plot C represents the left-handed active radiation performance of the low-frequency antenna after adopting the scheme of this embodiment. Comparing the TRP values ​​before and after adopting the scheme of this embodiment, it is clear that the radiated power of the low-frequency antenna is increased by 1.5 dB to 3.5 dB after adopting the scheme of this embodiment, showing a significant enhancement.

[0067] like Figure 8 The figure shown is a comparison of the low-frequency sensitivity performance of the antenna before and after adopting the solution of this embodiment. Figure 8 The vertical axis in the figure represents TIS (Total Isotropic Sensitivity), measured in dB. Block d represents the sensitivity of the low-frequency antenna before adopting the scheme of this disclosure, and block D represents the sensitivity of the low-frequency antenna after adopting the scheme of this disclosure. Comparing the TIS values ​​before and after adopting the scheme of this disclosure, it can be clearly seen that the sensitivity performance of the low-frequency antenna is improved by 3.6 dB after adopting the scheme of this disclosure, and the low-frequency performance of the antenna is significantly improved.

[0068] According to an exemplary embodiment, such as Figures 1-6 As shown, this disclosure provides an electronic device, which may be, for example, a mobile terminal, a tablet computer, a laptop computer, a smartwatch, a smart bracelet, or other electronic devices. The electronic device includes the mid-frame component described in the above embodiments.

[0069] The mid-frame assembly includes a frame 10, a support portion 20, and a tuning assembly 30. The frame 10 has a slot 11 to form a frame antenna; the slot 11 can be located on at least one side of the frame 10. The support portion 20 is connected to the frame 10 and forms the battery compartment 21. The support portion 20 also has a mounting area 201 for mounting the tuning assembly 30. The tuning assembly 30 is used to tune the frame antenna to improve its performance. The tuning assembly 30 includes a mounting portion 31 and a tuning device 32. The tuning device 32 is mounted on the mounting portion 31, which is connected to the frame 10, and the tuning device 32 is positioned opposite the slot 11.

[0070] In this embodiment of the disclosure, the electronic device includes the above-mentioned mid-frame assembly. By installing the tuning component 30 in the mounting area 201 at the battery compartment 21, the frame antenna is tuned. The tuning device 32 is positioned opposite to the gap 11. The upper frame of the tuning device 32 can be realized without increasing the design space, thereby increasing the tuning point of the antenna and increasing the tuning freedom of the antenna. Under the original length of the antenna parasitic stub, the low-frequency antenna performance of the electronic device is effectively improved, which is conducive to the miniaturization design of the electronic device.

[0071] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0072] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A mid-frame component, characterized in that, include: The frame has gaps to form a frame antenna; A support portion, connected to the frame, the support portion being used to form a battery compartment, and the support portion being provided with an installation area; A tuning assembly includes a mounting portion and a tuning device disposed on the mounting portion. The mounting portion is disposed in the mounting area and connected to the frame. The tuning device is disposed opposite to the gap.

2. The mid-frame assembly according to claim 1, characterized in that, The mounting part includes a first unit and a second unit stacked together. The first unit is connected to the frame, and the second unit is disposed on the side of the first unit away from the frame. The second unit is connected to the first unit. The tuning device is installed in the second unit and passes through the first unit.

3. The mid-frame assembly according to claim 2, characterized in that, The first unit includes a metal pad, and the second unit includes a circuit board; The circuit board is welded to the metal gasket, and the metal gasket is welded to the frame.

4. The mid-frame assembly according to claim 3, characterized in that, The tuning device is electrically connected to the circuit board, and the tuning device is fixed to the circuit board by adhesive bonding.

5. The mid-frame assembly according to claim 3, characterized in that, The metal gasket includes at least two independent gasket bodies, which are spliced ​​together to form a clearance area, and the tuning device is installed in the clearance area.

6. The mid-frame assembly according to claim 3, characterized in that, The metal gasket includes a via that penetrates the metal gasket, and the tuning device is mounted in the via.

7. The mid-frame assembly according to claim 3, characterized in that, The metal pad is bonded to the frame according to a preset adhesive path, which includes a first adhesive path and a second adhesive path, and the first adhesive path and the second adhesive path at least partially overlap.

8. The mid-frame assembly according to claim 3, characterized in that, There is a gap between the side of the circuit board away from the frame and the side wall of the battery compartment.

9. The mid-frame assembly according to any one of claims 1 to 8, characterized in that, The frame is provided with a wiring groove, and the wiring groove and the tuning device are located on different sides of the mounting part.

10. The mid-frame assembly according to any one of claims 1 to 8, characterized in that, The break is located at the end of the first side of the frame, which extends along the length of the frame.

11. An electronic device, characterized in that, Includes the mid-frame assembly as described in any one of claims 1 to 10.

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