Antenna structure, middle frame structure and terminal device

Abstract

The embodiment of the present application provides an antenna structure, a middle frame structure and a terminal device, relates to the technical field of terminals, and is used for improving the strength of the middle frame at the gap and improving the antenna performance. The antenna structure comprises a first metal frame and a first reinforcing rib which is arranged opposite to the first metal frame; a first antenna gap is formed in the first metal frame, the first antenna gap is used for dividing the first metal frame into two first metal segments which are located on both sides of the first antenna gap, at least one first metal segment is used for forming a first antenna radiator; the first reinforcing rib is arranged opposite to the first antenna gap, the horizontal projection of the first reinforcing rib on the first metal frame completely covers the first antenna gap, one end of the first reinforcing rib extends to one side wall of a battery compartment of the terminal device and is connected with the side wall; and the first reinforcing rib is connected with a circuit board of the terminal device through a first feed point structure.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to an antenna structure, a mid-frame structure, and a terminal device. Background Technology

[0002] As the structural framework of a terminal device, the mid-frame not only supports the internal electronic components but also withstands impacts from the external environment. Therefore, it is necessary to improve the rigidity and impact fracture resistance of the mid-frame to ensure the reliability of the terminal device. In related technologies, to meet the needs of more antenna placements, when a metal frame is used as the mid-frame, the metal frame needs to have seams to form the antenna radiators. However, the strength of the metal frame is affected by the seams, leading to insufficient strength of the mid-frame. This makes the mid-frame of the terminal device relatively weak at the seam locations, especially under bending and torsional stress, causing deformation and cracking at the seams, potentially leading to overall device cracking. To solve this problem, related technologies incorporate structural design considerations such as... Figure 1 As shown, a metal baffle structure 4 can be suspended on the middle frame directly opposite the seam 3. This metal baffle structure 4 is not directly connected to the surrounding metal to improve the bending strength of the middle frame at the seam 3. However, this suspended metal baffle structure may absorb the antenna's radiated signal, thus sacrificing and affecting the antenna's performance to some extent. Utility Model Content

[0003] This application provides an antenna structure, a mid-frame structure, and a terminal device to improve antenna performance by enhancing the strength of the mid-frame at the gaps.

[0004] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0005] In a first aspect, embodiments of this application provide an antenna structure, including: a first radiator, a second radiator, and a first reinforcing rib, with a first antenna gap between the first radiator and the second radiator. The first reinforcing rib is disposed opposite to the first antenna gap, and the horizontal projection of the first reinforcing rib on the first and second radiators completely covers the first antenna gap, with one end of the first reinforcing rib extending to a side wall of the battery compartment; the first reinforcing rib is also connected to a circuit board via a first feed point structure.

[0006] This embodiment of the application achieves a stronger structural design than the traditional suspended metal solution by extending one end of the first reinforcing rib provided on the first antenna slot to one side wall of the battery compartment and connecting it to the side wall of the battery compartment. In addition, since the first reinforcing rib is also connected to the circuit board of the terminal device through the first feed point structure, the radio frequency signal can be transmitted to the antenna structure through the first feed point structure after being transmitted through the circuit board, and then radiated out by the antenna structure. At the same time, the antenna performance can also be improved synchronously.

[0007] In one possible implementation of this application, the side of the first reinforcing rib facing the circuit board is connected to one end of the first feed point structure by welding, and the other end of the first feed point structure is electrically connected to the feed point on the circuit board.

[0008] In one possible implementation of this application, the eccentricity between the center of the first feed point structure and the position of the first antenna slot is less than or equal to 2 mm.

[0009] In one possible implementation of this application, the other end of the first reinforcing rib extends beyond the first antenna gap by a distance greater than or equal to a first preset distance.

[0010] In one possible implementation of this application, the first preset distance is greater than or equal to 3mm.

[0011] In one possible implementation of this application, the width of the first reinforcing rib is in the range of 0.5 to 3 mm along the first direction.

[0012] In one possible implementation of this application, the first reinforcing rib is made of a metallic material.

[0013] In one possible implementation of this application, the antenna structure further includes a third radiator and a fourth radiator, with a second antenna gap between the third radiator and the fourth radiator, and a second reinforcing rib provided at the second antenna gap, the horizontal projection of the second reinforcing rib on the third radiator and the fourth radiator completely covering the second antenna gap.

[0014] Secondly, embodiments of this application provide a mid-frame structure, which includes an antenna structure as described in the first aspect or various possible implementations of the first aspect, and also includes a mid-frame base and a first side frame connected to the mid-frame base. The mid-frame base has a first surface and a second surface, the first surface facing the display screen and the second surface facing the battery cover. A battery compartment is disposed on the second surface. The battery compartment includes at least a first sidewall, and the first side frame is opposite to the first sidewall. The first side frame has a first antenna slot, which is used to divide the first side frame into a first radiator and a second radiator. A first reinforcing rib is disposed close to the first side frame and opposite to the first antenna slot. The horizontal projection of the first reinforcing rib on the first side frame completely covers the first antenna slot, and one end of the first reinforcing rib extends to the first sidewall of the battery compartment.

[0015] In one possible implementation, the mid-frame structure further includes a second side frame, which is disposed opposite to the first side frame and has at least one second antenna slot. A second reinforcing rib is provided at the second antenna slot, which is used to divide the second side frame to form a third radiator and a fourth radiator of the antenna structure. The horizontal projection of the second reinforcing rib onto the third and fourth radiators completely covers the second antenna slot.

[0016] Thirdly, embodiments of this application provide a terminal device, including: a mid-frame structure as described in the second aspect or various possible implementations of the second aspect. Attached Figure Description

[0017] Figure 1 A schematic diagram of the antenna structure involved in the related technology provided in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of the structure of another terminal device provided in an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of another mid-frame structure provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of an antenna structure provided in an embodiment of this application;

[0023] Figure 7 This is a schematic diagram of an antenna structure provided in an embodiment of this application. Detailed Implementation

[0024] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0025] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0026] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0027] This application provides a terminal device, including mobile or fixed terminals with frames or shells, such as mobile phones, tablets, in-vehicle computers, smart wearable products, and Internet of Things (IoT) devices. This application does not impose any special limitations on the specific form of the aforementioned terminal device. For ease of explanation, the following description uses a mobile phone as an example.

[0028] like Figure 1 As shown, Figure 1 Taking the example of opening a slit 3 on one side frame of a terminal device as an antenna slot, the slit 3 divides the side frame into an antenna radiator 1 and an antenna radiator 2.

[0029] Currently, such as Figure 2 and Figure 3 As shown, Figure 2 This is a schematic diagram of the structure of a terminal device 100 provided in some embodiments of this application. Figure 3 for Figure 2 An exploded view of the terminal device 100 shown. Figure 2 The terminal device 100 shown is illustrated using a mobile phone as an example. The terminal device may include: a display screen 10, a mid-frame structure 20, a printed circuit board (PCB) 50, a battery, and a battery cover 30 (also referred to as a back cover), wherein the mid-frame structure 20 is disposed between the display screen 10 and the battery cover 30.

[0030] The battery cover 30 is connected to the mid-frame assembly 20 to form a cavity for accommodating the aforementioned electronic components such as the PCB, camera, and battery. This prevents external moisture and dust from entering the cavity and affecting the performance of the electronic components.

[0031] As an example, the PCB 50 and the battery can be fixed to the mid-frame structure 20 or the battery cover 30, and the battery can be fixed to the mid-frame structure 20 or the back cover 30 by adhesive, snap-fit ​​or fasteners.

[0032] Understandable Figure 2 and Figure 3 The accompanying drawings below only schematically illustrate some components included in the terminal device 100; the actual shape, size, location, and construction of these components are not subject to change. Figure 2 and Figure 3 As well as the accompanying drawings below. Furthermore, when the terminal device 100 is a device of some other form, the terminal device 100 may not include the display screen 10.

[0033] exist Figure 2 In the illustrated embodiment, the terminal device 100 is in the shape of a rectangular plate. For ease of description in the following embodiments, an XYZ coordinate system is established. Specifically, the width direction of the terminal device 100 is defined as the X-axis direction (i.e., the second direction), the length direction of the terminal device 100 is defined as the Y-axis direction (i.e., the first direction), and the thickness direction of the terminal device 100 is defined as the Z-axis direction (i.e., the third direction).

[0034] It is understood that the coordinate system of the terminal device 100 can be flexibly set according to actual needs, and no specific limitation is made here. In some other embodiments, the shape of the terminal device 100 may also be a square plate, a circular plate, an elliptical plate, etc.

[0035] The battery cover 30 can be a metal back cover, such as a back cover made of all-metal material. Of course, the back cover can also be made of glass, plastic, or ceramic. In this embodiment, the material of the back cover is not limited.

[0036] It is understandable that a charging port could be placed on the bottom edge 203.

[0037] When the battery is mounted on the mid-frame structure 20, for example, a battery compartment 40 can be provided on the side of the mid-frame structure 20 facing the battery cover 30, and the battery is installed inside the battery compartment 40 (e.g. Figure 4(As shown). In this embodiment, the battery can be connected to the charging management module and the circuit board 40 via a power management module. The power management module receives input from the battery 40 and / or the charging management module, and supplies power to the processor, internal memory, external memory, display screen 10, camera, and communication module. The power management module can also be used to monitor parameters such as battery capacity, battery cycle count, and battery health status (leakage current, impedance). In some other embodiments, the power management module can also be located in the processor of the circuit board. In other embodiments, the power management module and the charging management module can also be located in the same device.

[0038] The display screen 10 can be an organic light-emitting diode (OLED) display screen or a liquid crystal display (LCD). It should be understood that the display screen 10 may include a monitor and a touch device, the monitor being used to output display content to the user, and the touch device being used to receive touch events input by the user on the display screen 10.

[0039] The mid-frame structure 20 serves as the supporting skeleton for the terminal device 100. (See also...) Figure 2 and combined Figure 3 , Figure 3 for Figure 2 The diagram shows an exploded view of the mid-frame structure 20 of the terminal device. The mid-frame structure 20 includes a mid-frame base 201 and multiple side frames surrounding it, with the side frames positioned along the edges of the mid-frame base 201. The mid-frame base 201 is used to mount PCBs, such as main circuit boards and sub-circuit boards, batteries, camera modules, speakers, and other electronic components. The mid-frame base 201 is stacked with the display screen 10 and the battery cover 30, with the display screen 10 and battery cover 30 located on opposite sides of the mid-frame base 201. The battery cover 30, the side frames, and the display screen 10 form a closed cavity to house the mid-frame base 201 and the main circuit board, sub-circuit board, battery, camera module, speakers, and other electronic components mounted on the mid-frame base 201.

[0040] The mid-frame base 201 is a metal component. Specifically, the mid-frame base 201 is made of a metal material with high structural strength and hardness, so that the mid-frame base 201 has high structural strength, thereby enabling the mid-frame base 201 to play a stable supporting role and improve the impact fracture resistance of the mid-frame base 201, meeting battery safety requirements and improving the safety of the terminal device 100.

[0041] As an example, the mid-frame base 201 has a first surface and a second surface disposed opposite to each other, wherein the first surface faces the display screen 10 and the second surface faces the battery cover 30. The first surface is used to mount the display screen 10.

[0042] like Figure 4 As shown, a battery compartment 40 is provided on the second surface of the mid-frame base 201, and the battery is housed within the battery compartment 40, which improves the positional stability of the battery. As an example, the battery compartment 40 includes a bottom wall 401, a first side wall 402, a second side wall 403, a third side wall 404, and a fourth side wall 405. The first side wall 402 and the second side wall 403 are arranged opposite each other in the length direction of the mid-frame base 201, and the third side wall 404 and the fourth side wall 405 are arranged opposite each other in the width direction of the mid-frame base 201. The first side wall 402, the second side wall 403, the third side wall 404, and the fourth side wall 405 are sequentially connected end-to-end around the bottom wall 401.

[0043] Optional, such as Figure 4 As shown, the second surface, in addition to housing the battery compartment, also houses circuit boards located on either side or one side of the battery compartment along the first direction. For example, the terminal device may include a main circuit board and a secondary circuit board, which are respectively positioned on both sides of the battery compartment along the length of the terminal device. The main and secondary circuit boards are typically positioned opposite each other on either side of the battery. The main and secondary circuit boards are connected via an FPC cable. The main circuit board typically integrates a processor, memory, flash memory, camera, various sensors, and card slots, among other devices. The secondary circuit board typically houses components such as a speaker, Universal Serial Bus (USB), and a SIM card slot. For instance, if the terminal device includes a single circuit board, this circuit board can be positioned on one side of the battery compartment.

[0044] As an example, in a terminal device comprising a main circuit board and a secondary circuit board, the main and secondary circuit boards can be connected via an electrical connection structure to enable data and signal transmission between them. Optionally, the electrical connection structure can be a conductor, enameled wire, or a flexible printed circuit board (FPC).

[0045] In this embodiment, the frame structure 20 can be made of a metal. Specifically, the metal can be stainless steel or a titanium alloy.

[0046] The mid-frame structure 20 may include a mid-frame base 201 and multiple borders. For example, the mid-frame assembly 20 may include an upper border 202 and a lower border 203 (along the width direction, i.e., the X-axis direction) positioned opposite each other, and a left border 204 and a right border 205 (along the length direction, i.e., the Y-axis direction) located between the upper border 202 and the lower border 203 and positioned opposite each other. It can be understood that the left border 204 and the right border 205 can be considered as the two long sides of the terminal device, and the upper border 202 and the lower border 203 can be considered as the two short sides of the terminal device. That is, the mid-frame assembly 20 is enclosed by the upper border 202, the left border 204, the lower border 203, and the right border 205.

[0047] At least one antenna slot is provided on any of the frame edges. For example, such as Figure 4 As shown, at least one antenna slot, such as antenna slot 2021 and antenna slot 2022, can be formed on the upper frame 202. Antenna slots 2021 and 2022 are used to divide the upper frame 202 into metal segments 1, 2, and 3. At least one of the metal segments 1, 2, and 3 can serve as an antenna radiator.

[0048] To enhance the strength of the mid-frame structure 10 at antenna slots 2021 and 2022, reinforcing ribs 221 and 222 can be respectively provided at antenna slots 2021 and 2022. The horizontal projection of reinforcing rib 221 on the upper frame 202 at least covers antenna slot 2021. The horizontal projection of reinforcing rib 222 on the upper frame 202 at least covers antenna slot 2022. These reinforcing ribs 221 and 222 are used to strengthen the rigidity of the upper frame 202 at antenna slots 2021 and 2022, respectively.

[0049] For example, such as Figure 4 As shown, at least one antenna slot, such as antenna slot 2031 and antenna slot 2032, can be formed on the lower frame 203. Antenna slots 2031 and 2032 are used to divide the lower frame 203 into metal segments 4, 5, and 6. At least one of the metal segments 4, 5, and 6 can serve as an antenna radiator.

[0050] To enhance the strength of the mid-frame structure 10 at antenna slots 2031 and 2032, reinforcing ribs 231 and 232 can be provided at antenna slots 2031 and 2032, respectively. The horizontal projection of reinforcing rib 231 onto the lower frame 203 at least covers antenna slot 2031. The horizontal projection of reinforcing rib 232 onto the lower frame 203 at least covers antenna slot 2032. These reinforcing ribs 231 and 232 are used to strengthen the rigidity of the lower frame 203 at antenna slots 2031 and 2032, respectively.

[0051] For example, such as Figure 4 As shown, at least one antenna slot can be formed on the left frame 204, such as antenna slot 2041, antenna slot 2042, and antenna slot 2043. Antenna slots 2041, 2042, and 2043 are used to divide the left frame 204 into metal segments 7, 8, 9, and 10. At least one of the metal segments 7, 8, 9, and 10 can serve as an antenna radiator.

[0052] To enhance the strength of the mid-frame structure 10 at antenna slots 2041, 2042, and 2043, reinforcing ribs 241, 242, and 243 can be respectively provided at antenna slots 2041, 2042, and 2043. The horizontal projection of reinforcing rib 241 onto the left side frame 204 at least covers antenna slot 2041. The horizontal projection of reinforcing rib 242 onto the left side frame 204 at least covers antenna slot 2042. The horizontal projection of reinforcing rib 243 onto the left side frame 204 at least covers antenna slot 2043. These reinforcing ribs 241 and 242 are used to strengthen the rigidity of the left side frame 204 at the corresponding antenna slots 2041, 2042, and 2043.

[0053] As an example, the reinforcing rib disposed opposite to the antenna slot 2043 may extend to the second side wall 212 of the battery compartment at one end.

[0054] For example, such as Figure 4 As shown, at least one antenna slot, such as antenna slot 2051 or antenna slot 2052, can be formed on the right frame 205. Antenna slots 2051 and 2052 are used to divide the right frame 205 into metal segments 11, 12, and 13. At least one of the metal segments 11, 12, and 13 can serve as an antenna radiator.

[0055] To enhance the strength of the mid-frame structure 10 at antenna slots 2051 and 2052, reinforcing ribs 251 and 252 can be respectively provided at antenna slots 2051 and 2052. The horizontal projection of reinforcing rib 251 on the right side frame 205 at least covers antenna slot 2051. The horizontal projection of reinforcing rib 252 on the right side frame 205 at least covers antenna slot 2052. These reinforcing ribs 251 and 252 are used to strengthen the rigidity of the right side frame 205 at antenna slots 2051 and 2052, respectively.

[0056] As an example, the end of the reinforcing rib 252 facing the battery compartment, which is located near the antenna slot 2052, can extend to one side wall of the battery compartment (e.g., the first side wall 211).

[0057] Optionally, a power button and / or volume buttons may also be provided on either the left frame 204 or the right frame 205.

[0058] The material of the middle frame structure 20 can be metal, so the upper frame 202, lower frame 203, left frame 204 and right frame 205 can also be called metal frames.

[0059] In this case, the aforementioned frame is divided into multiple antenna radiators by multiple antenna gaps. Furthermore, the above is merely an example illustrating the formation of multiple antenna radiators within the frame. Other examples will not be elaborated upon. This application does not limit the signals transmitted by the aforementioned antennas. For example, any antenna can be used to transmit Bluetooth signals, Wi-Fi signals, Global Positioning System (GPS) signals, or mobile communication signals, such as fourth-generation (4G) signals.

[0060] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the mobile phone 100. In other embodiments of this application, the mobile phone 100 may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. For example, the mobile phone 100 may also include devices such as cameras (e.g., front-facing cameras and rear-facing cameras) and flash.

[0061] Furthermore, as can be seen from the above, the stiffness of the middle frame structure 20 can be improved by setting reinforcing ribs 22 in the middle frame structure 20.

[0062] In some embodiments of this application, provided that processing conditions such as machining accuracy and component space design are met, the aforementioned reinforcing ribs can be positioned as close as possible to the antenna slots corresponding to the location of the reinforcing ribs. This is beneficial for enhancing the purpose of the reinforcing ribs in strengthening the rigidity of the middle frame structure 20.

[0063] Furthermore, in some embodiments of this application, the materials constituting the antenna radiator, the mid-frame base 201, and the reinforcing ribs can be the same. For example, they can be magnesium-aluminum alloy or stainless steel. In this case, the antenna radiator, the mid-frame base 201, and the reinforcing ribs can be an integral structure.

[0064] The battery compartment in this embodiment can be applied to the mid-frame of a terminal device to support and house the battery of the electronic device. Optionally, the mid-frame can be, but is not limited to, a mid-frame for portable terminal devices such as a mobile phone mid-frame, tablet mid-frame, laptop mid-frame, desktop computer mid-frame, smart bracelet mid-frame, smartwatch mid-frame, e-reader mid-frame, and game console mid-frame.

[0065] In this embodiment of the application, in order to realize signal transmission and reception, at least one antenna structure is provided in the terminal device. The antenna structure includes an antenna radiator and a feed point and a ground point electrically connected to the antenna radiator.

[0066] like Figure 5 As shown, Figure 5 An antenna structure is provided in this application embodiment. The antenna structure can be applied in a terminal device 100. The antenna structure includes: a first metal frame 501 and a first reinforcing rib 502 disposed opposite to the first metal frame 501.

[0067] The first metal frame 501 has a first antenna slot 503, which is used to divide the first metal frame 501 into two first metal segments located on both sides of the first antenna slot 503, and at least one first metal segment is used to form a first antenna radiator.

[0068] The first reinforcing rib 502 is disposed opposite to the first antenna slot 503, and the horizontal projection of the first reinforcing rib 502 on the first metal frame completely covers the first antenna slot 503. One end of the first reinforcing rib 502 extends to and is connected to a side wall of the battery compartment of the terminal device. The first reinforcing rib 502 is also connected to the circuit board of the terminal device through the first feed point structure 504.

[0069] For example, if the terminal device includes a circuit board, the first feed point structure 504 can be connected to the circuit board; if the terminal device includes a main circuit board and a sub-circuit board, the first feed point structure 504 can be connected to the main circuit board of the terminal device.

[0070] For example, the first metal frame 501 can be Figure 4The right frame 205 or left frame 204 are shown. The first antenna slot 503 can be an antenna slot 2043 located on the left frame 204. In this case, one end of the first reinforcing rib 502 extends to and is connected to the second side wall 212 of the battery compartment of the terminal device 100. Alternatively, the first antenna slot 503 can be an antenna slot 2052 located on the right frame 205. In this case, one end of the first reinforcing rib 502 extends to and is connected to the first side wall 211 of the battery compartment of the terminal device 100.

[0071] In this embodiment, by extending one end of the first reinforcing rib 502 provided at the first antenna slot 503 to one side wall of the battery compartment and connecting it to the side wall of the battery compartment, a stronger structural design than the traditional suspended metal solution is achieved. In addition, since the first reinforcing rib 502 is also connected to the circuit board of the terminal device through the first feed point structure, the radio frequency signal can be transmitted to the antenna structure through the first feed point structure 504 after being transmitted through the circuit board, and then radiated out by the antenna structure. At the same time, the antenna performance can also be improved synchronously.

[0072] In one possible embodiment of this application, the side of the first reinforcing rib 502 facing the circuit board is connected to one end of the first feed point structure 504 by welding, and the other end of the first feed point structure 504 is electrically connected to the feed point on the circuit board.

[0073] For example, the first feed point structure 5054 can be a spring. For example, the spring can be spot-welded to the side of the first reinforcing rib 502 facing the circuit board. For example, as... Figure 7 As shown, the first feed point structure 504 may include a contact portion 5042 and an abutment portion 5041. The contact portion 5041 and the abutment portion 5042 are connected. The contact portion 5042 is used to connect to the side of the first reinforcing rib 502 facing the circuit board, and the abutment portion 5041 is used to connect to the feed point on the circuit board.

[0074] In one possible embodiment of this application, such as Figure 6 As shown, the eccentricity L2 between the center of the first feed point structure 504 and the center of the first antenna slot 503 is less than or equal to 2 mm. Specifically, the eccentricity between the center of the first feed point structure 504 and the center of the first antenna slot 503 can be considered as the distance between the straight line along the center of the first feed point structure 504 and the straight line along the center of the first antenna slot 503.

[0075] For example, the eccentric distance L2 between the center of the first feed point structure 504 and the center of the first antenna slot is 2mm, or 1mm, or 1.5mm, or 1.6mm, or 1.7mm, or 1.8mm, or 1.4mm, or 0mm.

[0076] Of course, in this embodiment, the center of the first feed point structure 504 may be offset to the left or to the right relative to the center of the first antenna slot. This embodiment does not limit this, as long as the eccentric distance L2 between the two is less than or equal to 2mm.

[0077] In one possible embodiment of this application, such as Figure 6 As shown, the other end of the first reinforcing rib 502 extends beyond the first antenna slot 503 by a distance greater than or equal to a first preset distance. For example, as... Figure 6 L1 is shown.

[0078] As an example, the distance by which the other end of the first reinforcing rib 502 extends beyond the first antenna slot 503 is the distance between the other end of the first reinforcing rib 502 and the center position of the first antenna slot 503.

[0079] For example, the first preset distance is greater than 0 mm. As an example, in this embodiment of the application, the first preset distance is greater than or equal to 3 mm.

[0080] For example, the distance between the other end of the first reinforcing rib 502 and the center of the first antenna slot is 1mm, 2mm, 3mm, 1.5mm, or 2.5mm.

[0081] In one possible embodiment of this application, along a first direction, such as Figure 7 As shown, the width L3 of the first reinforcing rib 502 ranges from 0.5 to 3 mm.

[0082] As an example, along the width direction of the terminal device, the width range L3 of the first reinforcing rib 502 is 0.5mm, 1mm, 0.8mm, 0.9mm, 1.2mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 3mm, 2mm, or 1.5mm.

[0083] In one possible embodiment of this application, the first reinforcing rib 502 is made of a metallic material.

[0084] As an example, in this embodiment of the application, the first reinforcing rib 502 and the first metal frame 501 can be an integral structure.

[0085] In one possible embodiment of this application, the antenna structure further includes a first metal frame and a second reinforcing rib disposed opposite to the second metal frame. The second metal frame is disposed opposite to or connected to the first metal frame. The second metal frame has a second antenna slot. The second antenna slot is used to divide the second metal frame into at least one second metal segment. At least one second metal segment is used to form a second antenna radiator.

[0086] The horizontal projection of the second reinforcing rib onto the second metal frame completely covers the second antenna slot.

[0087] Each first antenna radiator and each second antenna radiator can form at least one antenna.

[0088] For example, the second metal frame can be Figure 4 The left border shown is 204. Or it could be... Figure 4 The top border 202 or the bottom border 203 shown.

[0089] As an example, the antenna structure in this application embodiment can be used to transmit Bluetooth signals, Wi-Fi signals, global positioning system (GPS) signals, or mobile communication signals, such as fourth-generation (4G) signals, or any one or more of these.

[0090] This application provides a mid-frame structure, including an antenna structure as described in the above embodiments, a mid-frame base, and a first metal frame connected to the mid-frame base. The mid-frame base has a first surface and a second surface. The first surface faces the display screen, and the second surface faces the battery cover. A battery compartment is disposed on the second surface. The battery compartment includes at least a first sidewall. The first metal frame is opposite to the first sidewall.

[0091] The first metal frame has the first antenna slot, which is used to divide the first metal frame into at least one first antenna radiator of the antenna structure.

[0092] The first reinforcing rib is disposed inside the middle frame structure and opposite to the first metal frame. The horizontal projection of the first reinforcing rib on the first side frame completely covers the first antenna gap, and one end of the first reinforcing rib extends to the first side wall of the battery compartment.

[0093] As an example, the first metal frame can be Figure 4 The right frame shown is 205.

[0094] In one embodiment of this application, the mid-frame structure further includes a second metal frame. The second metal frame is disposed opposite to or connected to the first metal frame, and the second metal frame has at least one second antenna slot; the second antenna slot is used to divide the second metal frame into at least one second antenna radiator.

[0095] A second reinforcing rib is provided at the second antenna gap. The second reinforcing rib is opposite to the second metal frame, and the horizontal projection of the second reinforcing rib on the second metal frame completely covers the second antenna gap.

[0096] In another possible embodiment of this application, a terminal device is provided, including: a mid-frame structure as described in the above embodiments.

[0097] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video disc (DVD); or it can be a semiconductor medium, such as a solid-state drive (SSD).

[0098] Although this application has been described herein in conjunction with various embodiments, those skilled in the art, by reviewing the accompanying drawings, the disclosure, and the appended claims, will understand and implement other variations of the disclosed embodiments in carrying out the claimed application. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "an" does not exclude multiple instances. A single processor or other unit can implement several functions listed in the claims. While different dependent claims may recite certain measures, this does not mean that these measures cannot be combined to produce good results.

[0099] Although this application has been described in conjunction with specific features and embodiments, it is obvious that various modifications and combinations can be made thereto without departing from the spirit and scope of this application. Accordingly, this specification and drawings are merely exemplary illustrations of this application as defined by the appended claims, and are considered to cover any and all modifications, variations, combinations, or equivalents within the scope of this application. Clearly, those skilled in the art can make various alterations and modifications to this application without departing from the spirit and scope of this application. Thus, if such modifications and modifications of this application fall within the scope of the claims of this application and their equivalents, this application is also intended to include such modifications and modifications.

Claims

1. An antenna structure, characterized in that, When applied in a terminal device, the antenna structure includes: a first metal frame and a first reinforcing rib disposed opposite to the first metal frame; The first metal frame has a first antenna slot, which is used to divide the first metal frame into two first metal segments located on both sides of the first antenna slot. At least one of the first metal segments is used to form a first antenna radiator. The first reinforcing rib is disposed opposite to the first antenna gap, and the horizontal projection of the first reinforcing rib on the first metal frame completely covers the first antenna gap. One end of the first reinforcing rib extends to a side wall of the battery compartment of the terminal device and is connected to the side wall. The first reinforcing rib is also connected to the circuit board of the terminal device through the first feed point structure.

2. The antenna structure according to claim 1, characterized in that, The side of the first reinforcing rib facing the circuit board is connected to one end of the first feed point structure by welding, and the other end of the first feed point structure is electrically connected to the feed point on the circuit board.

3. The antenna structure according to claim 2, characterized in that, The eccentricity between the center of the first feed point structure and the center of the first antenna slot is less than or equal to 2 mm.

4. The antenna structure according to any one of claims 1 to 3, characterized in that, The distance by which the other end of the first reinforcing rib extends beyond the first antenna gap is greater than or equal to a first preset distance.

5. The antenna structure according to claim 4, characterized in that, The first preset distance is greater than or equal to 3mm.

6. The antenna structure according to any one of claims 1 to 3, characterized in that, Along the first direction, the width of the first reinforcing rib ranges from 0.5 to 3 mm.

7. The antenna structure according to any one of claims 1 to 3, characterized in that, The first reinforcing rib is made of metal.

8. The antenna structure according to any one of claims 1 to 3, characterized in that, The antenna structure further includes a first metal frame and a second reinforcing rib disposed opposite to the second metal frame. The second metal frame is disposed opposite to or connected to the first metal frame. The second metal frame has a second antenna slot. The second antenna slot is used to divide the second metal frame into at least one second metal segment. At least one second metal segment is used to form a second antenna radiator. The horizontal projection of the second reinforcing rib onto the second metal frame completely covers the second antenna slot.

9. A mid-frame structure, characterized in that, Includes the antenna structure as described in any one of claims 1 to 8, a mid-frame base and a first metal frame connected to the mid-frame base, the mid-frame base having a first surface and a second surface, the first surface facing the display screen, the second surface facing the battery cover, a battery compartment being disposed on the second surface, the battery compartment including at least a first sidewall, and the first metal frame being opposite to the first sidewall; The first metal frame has the first antenna slot, which is used to divide the first metal frame into at least one first antenna radiator of the antenna structure. The first reinforcing rib is disposed inside the middle frame structure and opposite to the first metal frame. The horizontal projection of the first reinforcing rib on the first side frame completely covers the first antenna gap, and one end of the first reinforcing rib extends to the first side wall of the battery compartment.

10. The middle frame structure according to claim 9, characterized in that, The mid-frame structure further includes a second metal frame, which is disposed opposite to or connected to the first metal frame. The second metal frame has at least one second antenna slot. The second antenna slot is used to divide the second metal frame into at least one second antenna radiator. A second reinforcing rib is provided at the second antenna gap. The second reinforcing rib is opposite to the second metal frame, and the horizontal projection of the second reinforcing rib on the second metal frame completely covers the second antenna gap.

11. A terminal device, characterized in that, include: The mid-frame structure as described in claim 9 or 10.

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