Antenna plate and electronic device

Abstract

The application discloses an antenna plate and an electronic device, and belongs to the technical field of communication. The antenna plate comprises a plate body, a feeding spring plate, a ground return spring plate, and a feeding ground screw gasket. The feeding spring plate is arranged at a first position of the plate body. The ground return spring plate is arranged at a second position of the plate body. The feeding ground screw gasket is arranged at a third position of the plate body, and the second position is located between the first position and the third position. The feeding ground screw gasket comprises a gasket support part and at least two spring angle structures. The gasket support part is provided with a through hole. The at least two spring angle structures are arranged around the through hole. A first end of the spring angle structure is fixedly connected with one end of the gasket support part. A second end of the spring angle structure is spaced apart from the gasket support part.

Description

Technical Field

[0001] This application belongs to the field of communication technology, specifically relating to an antenna board and an electronic device. Background Technology

[0002] In existing technologies, after the entire electronic device undergoes reliability testing, screws on the antenna board may loosen probabilistically. This loosening causes the antenna board to lift upwards, reducing the spring-angle preload contact of the screw washers at the feed and ground points. This results in poor contact between the antenna board and the frame antenna, making it difficult to guarantee a stable and reliable electrical connection. Therefore, existing technologies suffer from poor reliability in the electrical connection between the antenna board and the frame antenna. Summary of the Invention

[0003] The purpose of this application is to provide an antenna board and an electronic device that can solve the problem of poor electrical connection reliability between the antenna board and the frame antenna in the prior art.

[0004] In a first aspect, embodiments of this application propose an antenna board, comprising: plate body; A power feeding spring is disposed at a first position on the plate. A grounding spring is disposed at a second position on the plate. A grounding screw washer is disposed at a third position on the plate, and the second position is located between the first position and the third position. The ground screw washer includes a washer support portion and at least two spring-angle structures. The washer support portion has a through hole, and the at least two spring-angle structures are arranged around the through hole. The first end of the spring-angle structure is fixedly connected to one end of the washer support portion, and there is a gap between the second end of the spring-angle structure and the washer support portion.

[0005] In a second aspect, embodiments of this application provide an electronic device, including a frame and the antenna board described in the first aspect; A feed tongue is provided on the frame, and the feed tongue is electrically connected to the feed spring of the antenna board.

[0006] In an embodiment of this application, the antenna board includes: a board body; a feed spring, the feed spring being disposed at a first position on the board body; a ground return spring, the ground return spring being disposed at a second position on the board body; and a ground screw washer, the ground screw washer being disposed at a third position on the board body, the second position being located between the first position and the third position; wherein, the ground screw washer includes a washer support portion and at least two spring-angle structures, the washer support portion having a through hole, the at least two spring-angle structures being disposed around the through hole, the first end of the spring-angle structure being fixedly connected to one end of the washer support portion, and a gap existing between the second end of the spring-angle structure and the washer support portion. In this way, by improving the design of the antenna board, the ground screw washer is designed as a bottom washer support and at least two spring angle structures at the top. This can effectively increase the contact area and generate at least two continuous axial preloads when assembled with the frame antenna. This increases the spring angle preload contact of the ground screw washer, which can effectively resist screw loosening caused by vibrations such as micro-drops and roller tests, and improve the reliability of the electrical connection between the antenna board and the frame antenna.

[0007] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0008] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1a This is a front view of an antenna board assembly according to an embodiment of this application; Figure 1b This is a side view of an antenna board assembly according to an embodiment of this application; Figure 1c This is a rear view of the antenna board assembly according to an embodiment of this application; Figure 2a This is one of the structural schematic diagrams of the grounding screw washer according to an embodiment of this application; Figure 2b This is a second schematic diagram of the structure of the grounding screw washer according to an embodiment of this application; Figure 3a This is a front view of the grounding screw washer according to an embodiment of this application; Figure 3b This is a side view of the grounding screw washer according to an embodiment of this application; Figure 3c This is a rear view of the grounding screw washer according to an embodiment of this application; Figure 3d This is a left view of the grounding screw washer according to an embodiment of this application; Figure 4This is an assembly diagram of the antenna board, frame, and middle plate according to an embodiment of this application. Detailed Implementation

[0009] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0010] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and do not limit the number of objects; for example, a first object can be one or more. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0011] In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0012] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0013] To make the application and improved design of the embodiments of this application clearer, the relevant background technology involved in the embodiments of this application will be briefly described below: In the electrical connection structure design of the antenna frame in the background scheme, a feed tongue is typically designed on the antenna arm. The top metal of the feed tongue contacts the antenna feed screw washer, and screw holes are opened on the feed tongue for screw tightening and loosening. Ground screw holes are designed at the corner of the antenna arm (the specific location depends on the antenna design and wavelength). The entire ground section is directly connected to the mid-plate. The entire antenna oscillation wave operating current transmission is as follows: main board → coaxial cable connector → antenna board → antenna feed screw washer → feed tongue → antenna arm → antenna ground screw washer → mid-plate.

[0014] After the antenna board is assembled, the acoustic cavity box is assembled on the antenna board. The corresponding design features on the box press down the antenna board and coaxial cable seat. At the same time, two fixing screws are used to tighten the box corresponding to the antenna board. After the screws are tightened, the whole machine is powered on, and the corresponding metal antenna emits electromagnetic waves and the antenna works.

[0015] As can be seen, the background antenna is a single-fed IFA antenna, where one feed point can only correspond to one main resonance. The radiation pattern is simple, and multi-band operation relies on complex matching, which increases losses, limits bandwidth, and makes it impossible to achieve multi-band coverage. The radiation efficiency and isolation are low, and the performance improvement in low frequencies is particularly limited.

[0016] In the existing background solution, the antenna board has a Y-axis length of 13.6mm. As the battery capacity of the device continues to increase, with the latest benchmark reaching 10000mAh, the battery is constantly increasing in the X and Y directions of the device. This leads to continuous compression of the antenna board length in the stack. The antenna length of the background solution needs to be reduced, otherwise it cannot meet the product requirements of increasing battery capacity. Therefore, the entire antenna solution and electrical connection design of the antenna board need to be re-stacked and re-laid out.

[0017] In existing designs, the screw washers attached to the antenna board have only one spring angle, and the spring angle height is only 0.1mm. After the entire device undergoes micro-drop and roller reliability tests, screws may loosen probabilistically (test data mostly within half a turn, 0.15mm). Loosening causes the board to lift, reducing the spring angle preload contact of the screw washers at the feed and ground positions. This leads to electrical connection reliability issues, with the contact impedance increasing from 0.05 ohms before reliability testing to 20 ohms, an increase of two orders of magnitude. This results in a 3-5dB decrease in the efficiency of the frame antenna, or even functional failure. Therefore, an innovative design of the screw washer structure on the antenna board is needed to improve the screw loosening and unreliable contact issues caused by reliability testing, thereby enhancing contact reliability.

[0018] The antenna board and electronic equipment provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0019] Please see Figure 1a and Figure 1b , Figure 1a and Figure 1b This is a schematic diagram of the antenna board provided in an embodiment of this application. Figure 1a and Figure 1b As shown, the antenna board includes: Plate 11; A power feeding spring 12 is disposed at the first position of the plate 11; The return spring 13 is located at the second position of the plate 11; Grounding screw washer 14 is provided at the third position of the plate 11, and the second position is located between the first position and the third position; The ground screw washer 14 includes a washer support portion 141 and at least two spring-loaded structures 142. The washer support portion 141 is provided with a through hole 1411, and at least two spring-loaded structures 142 are arranged around the through hole 141. The first end of the spring-loaded structure 142 is fixedly connected to one end of the washer support portion 141, and there is a gap between the second end of the spring-loaded structure 142 and the washer support portion 141.

[0020] The antenna board assembly structure of this application embodiment is as follows: Figure 1a and Figure 1b As shown, a feed spring 12 is provided at the upper position of the first position of the plate 11 for electrical connection with the frame antenna to feed the antenna. A ground return spring 13 is provided at the middle position of the second position of the plate 11 for grounding. A grounding screw washer 14 is provided at the lower position of the plate 11 for electrical connection with the middle plate of the frame antenna. In addition, an antenna matching device 15 is also provided on the plate 11 for antenna matching and tuning, such as... Figure 1b and Figure 1c As shown, a coaxial cable connector 16 may also be provided on the board 11 for connection with the main board to realize the transmission of current and electrical signals. In some embodiments of this application, the power feed spring 12, ground return spring 13, ground screw washer 14, and antenna matching device 15 are all disposed on the same side of the board 11, and the coaxial cable connector 16 is disposed on the other side of the board 11. It can be understood that in some embodiments of this application, the middle board is the main ground of the electronic device.

[0021] Compared to the prior art, this application replaces the top feed screw washer with a feed spring, reducing the number of screws and washers to one screw for securing the antenna board. The top layer of the antenna board, stacked from top to bottom, consists of the feed spring, the ground spring, and the ground screw washer. The overall Y-axis stacking dimension is 11.68mm, approximately 2mm shorter than the prior art (which requires at least 13.6mm in the Y-axis stacking dimension). This facilitates an increase in overall battery capacity and addresses the stacking bottleneck. By reducing the number of fasteners and their corresponding screw holes, this application effectively shortens the length of the antenna board.

[0022] This application embodiment also improves the structure of the grounding screw washer 14, modifying the original annular screw washer structure of the background scheme as follows: Figure 2a The novel positive pressure double spring-angle screw washer structure shown includes a washer support portion 141 and at least two spring-angle structures 142. The washer support portion 141, which is also the washer pad surface, has a through hole 1411 for mounting screws to lock the acoustic cavity BOX, antenna board, and frame antenna. At least two spring-angle structures 142 are arranged around the through hole 141 to avoid obstructing the through hole 1411. The first end of the spring-angle structure 142 is fixedly connected to the washer support portion 141. This fixed connection can be an integral connection, such as the spring-angle structure 142 and the washer support portion 141 being an integrally formed structure, or it can be a fixed connection method such as welding. The second end of the spring-angle structure 142 is separated from the washer support portion 141, that is, there is a certain distance between the second end of the spring-angle structure 142 and the washer support portion 141. This distance is the spring-angle height, which allows the ground screw washer 14 to have sufficient spring-angle preload in the compressed state, ensuring reliable contact between the antenna board and the frame antenna. The antenna board structure design of this application embodiment enables the gasket to always provide tension and preload, which helps to maintain clamping and prevents the screws from loosening or losing tension due to vibration, thermal cycling or other factors.

[0023] Optionally, the spring-loaded structure 142 includes a connected base 1421 and a first bent portion 1422. The base 1421 is connected to the gasket support portion 141, and the distance between the first bent portion 1422 and the gasket support portion 141 gradually increases along the direction in which the first bent portion 1422 extends. In some embodiments of this application, the direction in which the first bent portion 1422 extends is the direction in which the first bent portion 1422 is away from the base 1421.

[0024] like Figure 2a and Figure 3aAs shown, the spring-loaded structure 142 is designed as a connected base 1421 and a first bent portion 1422. The base 1421 is fixedly connected to the pad support portion 141, and the first bent portion 1422 is separate from the pad support portion 141. The first bent portion 1422 is an upward-curving structure, also known as a spring-loaded angle, and is set at a certain angle with the pad support portion 141. This structure enables the pad to have axial elasticity, ensuring sufficient pre-compression at the spring-loaded angle under compressed conditions, thus guaranteeing reliable contact between the antenna board and the frame antenna. In some embodiments of this application, there is a gap between the base 1421 and the pad support portion 141, and the base 1421 is arranged parallel to the pad support portion 141.

[0025] Optionally, the distance between the second end of the spring-loaded structure 142 and the gasket support 141 is greater than 0.15 mm.

[0026] like Figure 3b As shown, the spring angle height H can be designed to be above 0.15mm. This way, even if the screw is slightly loose after reliability testing (the travel of half a turn is usually 0.15mm), there will still be enough spring angle preload to ensure reliable contact between the antenna board and the frame antenna.

[0027] In some embodiments, the spring angle height H of the gasket can be designed to be 0.33 mm, and the overall height D of the second end of the spring angle structure 142 is 0.57 mm. In this way, even if the screw is slightly loose after the reliability test, the spring angle preload will still be 0.18 mm, thereby ensuring the reliable contact of the antenna structure.

[0028] It should also be noted that in some embodiments, the material thickness of the gasket can be adjusted from 0.12 mm to 0.15 mm to increase the preload of the gasket.

[0029] Optionally, the ground screw washer 14 includes two spring-angle structures 142, such as Figure 3a As shown, the two spring-angle structures 142 are symmetrically arranged relative to the through hole 1411.

[0030] In some embodiments, such as Figure 2a and Figure 2b As shown, the designable grounding screw washer 14 includes two symmetrically arranged spring angle structures 142, such as... Figure 3a As shown, two spring-loaded structures 142 are respectively disposed on the left and right sides of the through hole 1411, and the first bent portion 1422 is an arc-shaped structure surrounding the through hole 1411. In this way, the gasket can maintain uniform tension and preload during assembly, ensuring reliable contact between the antenna board and the frame antenna.

[0031] Optionally, the ground screw washer 14 further includes a second bend 143, the first end of which is connected to the end of the washer support 141, and the second end of which is connected to the base 1421.

[0032] like Figure 2a and Figure 2b As shown, a second bending portion 143 is provided between one end of the gasket support portion 141 and the base 1421 of the spring angle structure 142. This bending portion can also be called the bending lever area. In some embodiments, the spring angle structure 142 and the gasket support portion 141 can be manufactured by stamping and reverse bending process. The two spring angle lever arms on the whole gasket are compressed, which can generate two continuous axial preload forces. Combined with the friction of the surface, the screw thread pair can be kept pressed, thereby effectively resisting the loosening of the screw caused by vibrations such as micro-drops and roller tests.

[0033] Optionally, a protrusion 1423 is provided on the first surface of the spring-angle structure 142, and the first surface is the surface of the spring-angle structure 142 facing away from the pad support portion 141.

[0034] In some embodiments, such as Figure 2a As shown, a number of protrusions 1423 can also be provided on the first surface, i.e., the upper surface, of the spring-loaded structure 142. The protrusions 1423 can be spherical, with a diameter of about 0.25 mm and a height greater than 0.07 mm. This ensures more reliable contact between the upper surface of the gasket and other components when it is pressed, and effectively distributes the current across the lap joint.

[0035] Optionally, both the first end and the second end of the first surface are provided with a protrusion 1423.

[0036] In some embodiments, such as Figure 2a , Figure 2b and Figure 3a As shown, a convex 1423 can be provided at both ends of the upper surface of each spring-angle structure 142. For example, there is a convex 1423 on the surface of the base 1421 and a convex 1423 on the surface of the second bend 143. A total of 4 small convex 1423 are designed for the two spring-angle structures 142, which can effectively distribute the current of the overlapping surface and ensure the overall contact reliability between the pad and the frame antenna.

[0037] In addition, such as Figure 3c As shown, the back side of the pad support 141 is the solder-coated surface 1410, as... Figure 3a As shown, the middle part of one end of the pad support 141 is not covered by the spring angle structure 142, and can be used as the pad suction position 1412 during installation and clamping. Figure 3d This is a left view of the ground screw washer 14.

[0038] It should also be noted that, in specific implementation, the material of the ground screw washer 14 can be stainless steel SUS 301H with a material thickness T=0.15. The washer is nickel-plated as a whole, and gold-plated on the welding surface, spring angle, and convex contact area to ensure contact with the frame antenna, low contact impedance, and resistance to corrosion and oxidation. The washer is designed with a spiral spring angle. In the flattened state, the single-arm elastic force of the spring angle is ≥2N. The root of each spring angle and the contact area are designed with a spherical contact convex convex with a diameter of 0.25mm and a convex height of 0.07mm. In the locked state, the entire spring arm has an additional spring angle contact, which can effectively increase the contact area and current shunting (the current density through the washer is smaller), thus reducing the risk of radio frequency harmonic interference. The entire structural design ensures that the washer always provides tension and preload, which helps to maintain clamping during assembly and prevents the screw from loosening or losing tension due to vibration, thermal cycling, or other factors. Spring-loaded washers also help absorb shocks and reduce the impact of cyclic loading on the connection, which can improve the durability and service life of the electrical connection and effectively solve the problem of power supply and ground contact caused by loose screws in the whole machine.

[0039] An antenna board according to an embodiment of this application includes: a board body; a feed spring, the feed spring being disposed at a first position on the board body; a grounding spring, the grounding spring being disposed at a second position on the board body; and a grounding screw washer, the grounding screw washer being disposed at a third position on the board body, the second position being located between the first and third positions; wherein, the grounding screw washer includes a washer support portion and at least two spring-angle structures, the washer support portion having a through hole, the at least two spring-angle structures being disposed around the through hole, the first end of the spring-angle structure being fixedly connected to one end of the washer support portion, and a gap existing between the second end of the spring-angle structure and the washer support portion. Thus, by improving the design of the antenna board, designing the grounding screw washer as a bottom washer support portion and at least two upper spring-angle structures, the contact area can be effectively increased during assembly with the frame antenna, and at least two continuous axial preload forces can be generated, increasing the spring-angle preload contact amount of the grounding screw washer, thereby effectively resisting screw loosening caused by vibrations such as micro-drops and roller tests, and improving the reliability of the electrical connection between the antenna board and the frame antenna.

[0040] Please see Figure 4 , Figure 4 This is a partial schematic diagram of an electronic device provided in an embodiment of this application. For example... Figure 4 As shown, the electronic device includes: The frame 20 and the antenna board 10 in the aforementioned embodiments; A feed tongue 21 is provided on the frame 20, and the feed tongue 21 is electrically connected to the feed spring 12 of the antenna board 10.

[0041] The assembly structure of the antenna board 10 and the frame 20 in this embodiment is as follows: Figure 4As shown, the feed spring 12 of the antenna board 10 is electrically connected to the feed tongue 21 on the frame 20, and the ground screw washer 14 of the antenna board 10 is connected to the middle plate 23 of the frame 20. It should be noted that the frame 20 can be the antenna located at the lower left corner of the battery cover of the whole device.

[0042] Optionally, a grounding tongue 22 is also provided on the frame 20, and the grounding tongue 22 is electrically connected to the grounding screw washer 14 of the antenna board 10.

[0043] In some embodiments, a grounding tongue 22 can be added to the frame 20 for electrical connection with the grounding screw washer 14 of the antenna board 10. This changes the background antenna design from an inverted F antenna (IFA) (one contact for power feeding, one contact for ground return) to a dual-fed IFA antenna (one contact for power feeding, one contact for ground feeding, and one contact for ground return). Looking at the top surface of the antenna board 10, the top has the power feeding spring 12, the rear has the grounding screw washer 14, and the middle has the ground return spring 13. This antenna design can excite different resonant modes, support dual-band coverage, achieve wider bandwidth and higher radiation efficiency, and provide better isolation, thus improving antenna performance. The performance of the frame 20 is improved by approximately 1 dB. Table 1 below shows the simulation comparison data of the antenna efficiency of the antenna design of this application and the background design: Table 1 Antenna Efficiency Comparison

[0044] Optionally, the electronic device includes a middle plate 23, which has a protrusion located between the ground feed tongue 22 and the power feed tongue 21. The ground return spring 13 of the antenna board 10 is electrically connected to the protrusion. The ground feed tongue 22 has a screw hole 221, and the ground feed tongue 22 and the ground feed screw washer 14 are locked together by screws.

[0045] In some embodiments of this application, electrical connection refers to mutual contact and electrical connection.

[0046] In some embodiments of this application, the frame 20 is disposed around the middle plate 23, which is the main ground of the electronic device.

[0047] like Figure 4 As shown, the grounding spring 13 is electrically connected to the middle plate 23 of the electronic device. A screw hole 221, matching the size of the through hole 1411 on the grounding screw washer 14, can be opened on the grounding tongue 22. When assembling the antenna board 10, the through hole 1411 of the grounding screw washer 14 can be aligned with the screw hole 221 of the grounding tongue 22. Then, by passing a screw through the through hole 1411 and the screw hole 221 and tightening the screw, the antenna board 10 can be locked to the frame 20. This structure enables the locking installation of the antenna board to the frame.

[0048] In some embodiments of this application, the electronic device also includes a housing, and screws simultaneously fix the antenna board 10 and the grounding tongue 22 to the housing.

[0049] The electronic device in this application embodiment can achieve the same technical effect as the aforementioned antenna board embodiment, and will not be described again here to avoid repetition.

[0050] The electronic devices in this application include, but are not limited to, mobile terminals, such as tablets, candybar phones, foldable phones, and smart wearable devices.

[0051] Other components of the electronic device according to the embodiments of this application, such as radio frequency modules and processors, as well as their operation, are known to those skilled in the art and will not be described in detail here.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0053] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An antenna board, characterized in that, include: plate body; A power feeding spring is disposed at a first position on the plate. A grounding spring is disposed at a second position on the plate. A grounding screw washer is disposed at a third position on the plate, and the second position is located between the first position and the third position. The ground screw washer includes a washer support portion and at least two spring-angle structures. The washer support portion has a through hole, and the at least two spring-angle structures are arranged around the through hole. The first end of the spring-angle structure is connected to the washer support portion, and there is a gap between the second end of the spring-angle structure and the washer support portion.

2. The antenna board according to claim 1, characterized in that, The spring-loaded structure includes a connected base and a first bent portion. The base is connected to the gasket support portion. Along the direction of extension of the first bent portion, the distance between the first bent portion and the gasket support portion gradually increases.

3. The antenna board according to claim 1, characterized in that, The distance between the second end of the spring-loaded structure and the gasket support is greater than 0.15 mm.

4. The antenna board according to claim 1, characterized in that, The grounding screw washer includes two spring-angle structures, which are symmetrically arranged relative to the through hole.

5. The antenna board according to claim 2, characterized in that, The ground screw washer further includes a second bend, the first end of which is connected to the end of the washer support, and the second end of which is connected to the base.

6. The antenna board according to any one of claims 1 to 5, characterized in that, The first surface of the spring-loaded structure is provided with a protrusion, and the first surface is the surface of the spring-loaded structure facing away from the pad support portion.

7. The antenna board according to claim 6, characterized in that, The first end of the first surface and the second end of the first surface are both provided with the convex bulge.

8. An electronic device, characterized in that, Includes a frame and an antenna board as described in any one of claims 1 to 7; A feed tongue is provided on the frame, and the feed tongue is electrically connected to the feed spring of the antenna board.

9. The electronic device according to claim 8, characterized in that, A grounding tongue is also provided on the frame, and the grounding tongue is electrically connected to the grounding screw washer of the antenna board.

10. The electronic device according to claim 9, characterized in that, The electronic device includes a middle plate with a protrusion located between the grounding tongue and the power feeding tongue. The ground return spring of the antenna board is electrically connected to the protrusion. The grounding tongue has a screw hole, and the grounding tongue and the grounding screw washer are locked together by screws.

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