Electronic equipment

Abstract

The embodiment of the invention provides an electronic device which comprises a display panel, a rear cover, a middle frame assembly and an antenna, the antenna is at least composed of a partial area of a side frame, and a first bonding pad area is arranged on the surface of the side, close to a middle plate, of the antenna; the circuit board comprises an extension area, the extension area is located between the side frame and the battery compartment, and the extension area is provided with a grounding point; the middle frame assembly further comprises a first electric connection structure, the first electric connection structure comprises a fixing part and an elastic piece part, the fixing part is fixedly connected with the first bonding pad area of the antenna, the elastic piece part is located on the side, close to the battery bin, of the fixing part and extends in the second direction, and the first end of the elastic piece part is connected with the fixing part. The second end of the elastic sheet part is in contact connection with the grounding point of the circuit board. By arranging the first electric connection structure, the electric connection between the antenna and the circuit board can be realized in a narrower area between the side frame and the battery compartment, and the battery capacity is not influenced.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to an electronic device. Background Art

[0002] Smart terminals such as mobile phones need to achieve communication through the mobile communication network provided by the operator, and they can also achieve communication connections between smart devices through various methods such as WIFI, Bluetooth, and infrared. For a mobile phone, communication signals are transmitted and received through an antenna, and the antenna is generally located in the border area of the mobile phone. The antenna can be electrically connected to the feeding point and the grounding point respectively arranged on the mobile phone circuit board through an electrical connection component to achieve signal transmission and reception.

[0003] In the related art, a battery compartment is provided inside the mobile phone, and the battery compartment is used to place the battery. The circuit board is generally located at the top or bottom of the battery compartment. To ensure the performance of the antenna, the distance between the feeding point and the grounding point on the circuit board in the extending direction of the antenna needs to be greater than 4.5 mm.

[0004] However, currently, with the improvement of consumer demands, the thickness of the mobile phone is continuously reduced. To ensure the battery capacity, the size of the battery compartment in the length direction of the mobile phone has increased. At the same time, the size of the circuit board in the length direction of the mobile phone has decreased. To ensure that the distance between the feeding point and the grounding point arranged along the length direction of the mobile phone on the circuit board meets the requirements, a part of the circuit board needs to extend into the side between the battery compartment and the border of the mobile phone, and a grounding point or a feeding point is arranged at the extending part.

[0005] Since the area between the side of the battery compartment and the border of the mobile phone is narrow, to ensure that the size of the battery compartment is not affected, the width of the part of the circuit board extending into the side of the battery compartment is narrow, and the thickness of the whole device is thin. The electrical connection component in the related art generally includes two parts, a split reed and a shrapnel, and the shrapnel has certain thickness requirements or width requirements. Therefore, it is impossible to use the electrical connection component in the related art to achieve the electrical connection between the antenna and the part of the circuit board extending into the side of the battery compartment. Summary of the Invention

[0006] The purpose of the embodiments of this application is to provide an electronic device to achieve the electrical connection between the antenna and the circuit board in a narrow area inside the electronic device. The specific technical solution is as follows:

[0007] An embodiment of the present application provides an electronic device, including: a display panel; a rear cover disposed opposite to the display panel; a middle frame assembly including a middle plate located between the display panel and the rear cover, a battery compartment being provided on one side of the middle plate close to the rear cover or on one side close to the display panel, the battery compartment being configured to accommodate a battery; the middle frame assembly further including a frame surrounding the periphery of the middle plate; the frame including a top frame, a bottom frame, and side frames, the top frame and the bottom frame extending in a first direction, the side frames extending in a second direction, the first direction being perpendicular to the second direction; an antenna formed by at least a partial area of the side frames, a first pad area being provided on a surface of the antenna close to the middle plate, the first pad area being located on one side of the battery compartment in the first direction; a circuit board including an extended area located between the side frames and the battery compartment, a ground point being provided in the extended area; the middle frame assembly further including a first electrical connection structure, the first electrical connection structure including a fixing portion and a spring piece portion, the fixing portion being fixedly connected to the first pad area of the antenna, the spring piece portion being located on a side of the fixing portion close to the battery compartment and having a gap with the battery compartment, the spring piece portion extending in the second direction and having a first end and a second end in the second direction, the first end of the spring piece portion being connected to the fixing portion, and the second end of the spring piece portion being in contact connection with the ground point of the circuit board.

[0008] In an embodiment of the present application, the electronic device includes a middle frame assembly. The middle frame assembly includes a middle plate, and a battery compartment is provided on the middle plate. The battery compartment can be used to place a battery. The middle frame assembly further includes a side frame, and the side frame can form an antenna of the electronic device. The electronic device further includes a circuit board. The circuit board is provided with an extended area, and the extended area is located between the side frame and the battery compartment. By providing the extended area, when the size of the battery compartment in the second direction (for example, the length direction of the electronic device) increases, the circuit board can have sufficient space dimensions in this direction to arrange the grounding point and feeding point of the antenna. In an embodiment of the present application, the middle frame assembly further includes a first electrical connection structure. The first electrical connection structure includes a fixing portion and a spring piece portion. The fixing portion can be fixedly connected to the first pad area of the antenna. The spring piece portion is located on the side of the fixing portion close to the battery compartment. Since the spring piece portion extends in the second direction, that is, in a direction parallel to the side frame, the size of the spring piece portion in the first direction, that is, in a direction perpendicular to the side frame, can be smaller. Furthermore, in the case where the space between the side frame and the battery compartment is relatively narrow, the spring piece portion can be accommodated between the side frame and the battery compartment. Further, by fixedly connecting the first end of the spring piece portion to the fixing portion and contacting and connecting the second end of the spring piece portion to the grounding point of the circuit board after extending in the second direction, the size of the connection area between the spring piece portion and the circuit board in the first direction can be smaller, so that the size of the extended area of the circuit board in the first direction can be smaller, avoiding the size compression of the battery compartment in the first direction caused by the larger size of the extended area in the first direction, and further avoiding the reduction of the battery capacity, so as to realize the electrical connection between the antenna and the circuit board without affecting the battery capacity.

[0009] In some embodiments of the present application, the fixing portion and the spring piece portion are integrally formed. By integrally forming the fixing portion and the spring piece portion, the first electrical connection structure can be made more compact and have a smaller size.

[0010] In some embodiments of the present application, the side of the circuit board close to the display panel is the top surface, and the grounding point is located on the top surface of the circuit board. The spring piece portion is located on the side of the circuit board close to the display panel. The spring piece portion includes a flat sub-portion and an inclined sub-portion. The surface of the flat sub-portion far from the battery compartment is connected to the fixing portion. One end of the inclined sub-portion is connected to the flat sub-portion, and the other end of the inclined sub-portion extends in a direction close to the top surface of the circuit board and contacts and connects with the grounding point.

[0011] By providing the flat sub-portion, it is convenient to connect with the fixing portion. By providing the inclined sub-portion and fixing one end of the inclined sub-portion to the flat sub-portion, the other end of the inclined sub-portion is an active end. Under a certain pressure, the other end of the inclined sub-portion, that is, the active end, can be in contact with the circuit board, realizing the contact connection between the spring piece portion and the grounding point of the circuit board, and having relatively high stability.

[0012] In some embodiments of the present application, the middle frame assembly further includes a plastic part, which is located between the frame and the middle plate. A receiving groove is provided on a surface of the plastic part facing away from the display panel, and the elastic piece portion is received in the receiving groove.

[0013] By providing the plastic part, the space between the frame and the middle plate can be sealed, preventing moisture entering from the display panel side from passing through the gap between the frame and the middle plate and entering the space between the middle plate and the rear cover, thereby protecting components such as electronic components and batteries located between the middle plate and the rear cover. Further, by providing the receiving groove on the plastic part, the elastic piece portion can be installed in the receiving groove, and a certain supporting force can be provided to the elastic piece portion in the thickness direction of the electronic device, enabling the elastic piece portion to be in close contact with the circuit board.

[0014] In some embodiments of the present application, a positioning portion is provided in the receiving groove, and a limiting portion cooperating with the positioning portion is provided on the flat plate portion. By providing the positioning portion in the receiving groove and the limiting portion cooperating with the positioning portion on the flat plate portion, when installing the first electrical connection structure, the first electrical connection structure can be positioned by matching the limiting portion and the positioning portion, ensuring that after installation, the fixing portion can be aligned with the first pad area, and the second end of the limiting portion can be aligned with the ground connection point of the circuit board, improving the installation accuracy.

[0015] In some embodiments of the present application, the electronic device further includes a pressing plate, which is located on a side of the circuit board facing away from the display panel. A buckle is provided on a side of the pressing plate close to the side frame, and a card slot is provided on the plastic part. The buckle is inserted into the card slot, so that a portion of the pressing plate corresponding to the extension area of the circuit board abuts against a side of the circuit board facing away from the elastic piece portion. Thus, in the thickness direction of the electronic device, the positions of the pressing plate and the plastic part can be matched, thereby fixing the first electrical connection structure and the circuit board located between the pressing plate and the plastic part, and ensuring the connection stability between the circuit board and the first electrical connection structure.

[0016] In some embodiments of the present application, a coating is provided at the second end of the elastic piece portion. Thus, the second end of the elastic piece portion can be protected, improving its corrosion resistance and wear resistance, and further improving the connection reliability between the elastic piece portion and the ground connection point.

[0017] In some embodiments of the present application, a copper leakage area is provided on the circuit board, and the ground connection point is located in the copper leakage area. By providing the copper leakage area on the circuit board, not only can the contact connection between the first electrical connection structure and the circuit board be realized, but also the structure of the circuit board is simple and convenient for manufacturing.

[0018] In some embodiments of the present application, an inductive element is provided on the circuit board, and the grounding point is connected to the ground layer of the circuit board through the inductive element. Thus, after the antenna is connected to the grounding point through the first electrical connection structure, it can be grounded through the inductive element, which is beneficial to improving the performance of the antenna.

[0019] In some embodiments of the present application, the circuit board further includes a main body area located on one side of the battery compartment close to the top frame or the bottom frame, and a feeding point is provided in the main body area; a second pad area is further provided on a surface of the antenna close to the middle plate, the second pad area is spaced from the first pad area, the second pad area is located on one side of the main body area in the first direction, and the second pad area is electrically connected to the feeding point of the circuit board through a second electrical connection structure. Thus, the antenna can be electrically connected to a feeder (such as a radio frequency module) on the circuit board through the feeding point.

[0020] In some embodiments of the present application, in the first direction, the distance between the second pad area and the main body area is greater than the distance between the first pad area and the extended area. Thus, while ensuring that the distance between the feeding point and the grounding point in the second direction meets the requirements, it is possible to save the connection space between the first pad area and the grounding point of the circuit board, realize the electrical connection between the antenna and the grounding point of the circuit board in a narrow area, and expand the clearance area of the second pad area, thereby improving the antenna performance.

[0021] In some embodiments of the present application, the part of the antenna provided with the first pad area and the second pad area protrudes in a direction close to the middle plate to form an extended part, and the first pad area and the second pad area are located on a surface of the extended part close to the middle plate. By providing the extended part, it is convenient to connect the antenna to the circuit board, and a larger clearance area can be provided for the part of the antenna without the extended part, which is beneficial to improving the antenna performance.

[0022] In some embodiments of the present application, the second electrical connection structure includes a reed and a broken-board spring piece. The reed is fixedly connected to the second pad area, the broken-board spring piece extends along the first direction, one end of the broken-board spring piece abuts against the reed, and the other end of the broken-board spring piece is fixed on the circuit board. The second electrical connection structure can realize the electrical connection in the case of a large distance between the antenna and the circuit board. By making the broken-board spring piece extend along the first direction, the current emitted from the feeder of the circuit board can directly enter the antenna along the first direction, and its flowing path is a straight line without turning, so that the flowing path is shorter, which is beneficial to improving the antenna performance.

[0023] In some embodiments of the present application, the circuit board includes a main board and a secondary board, and the main board and the secondary board are respectively located on both sides of the battery compartment along the second direction; a part of the secondary board extends between the side frame and the battery compartment to form the extended area. Since components such as inductors are usually integrated on the secondary board, by forming a part of the secondary board into an extended area, a grounding point can be set on the secondary board, thus facilitating the grounding of the inductor of the antenna.

[0024] In some embodiments of the present application, a part of the main board extends between the side frame and the battery compartment to form the extended area. In practical applications, the extended area can be set according to the specific structure of the electronic device. Thus, the internal structure layout of the electronic device can be made more reasonable, and it is also convenient to improve the existing electronic device.

[0025] In some embodiments of the present application, the circuit board further includes an independent small board, which is located between the battery compartment and the side frame, and the independent small board is used to form the extended area. Thus, the main board and the secondary board can directly use existing products, which is convenient for configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other embodiments can also be obtained based on these drawings.

[0027] Figure 1 is a schematic structural diagram of the electronic device provided by the embodiment of the present application;

[0028] Figure 2 is Figure 1 a structural exploded view of an embodiment of the shown electronic device;

[0029] Figure 3 is a partial structural schematic diagram of the electronic device of the embodiment of the present application (the pressing plate is not shown);

[0030] Figure 4 is Figure 3 an enlarged schematic view of part A in;

[0031] Figure 5 is Figure 3 a top view of the connection between the antenna and the extended area of the shown electronic device;

[0032] Figure 6 is Figure 3 a schematic diagram of the first electrical connection structure of the shown electronic device;

[0033] Figure 7 is Figure 3 a schematic structural diagram of the antenna of the electronic device shown;

[0034] Figure 8 is Figure 3 a schematic structural diagram of the circuit board of the electronic device shown;

[0035] Figure 9 is Figure 3 a schematic connection diagram of the first electrical connection structure of the electronic device with the antenna and the extended area;

[0036] Figure 10 is Figure 9 a side view of;

[0037] Figure 11 is Figure 3 a schematic structural diagram of the plastic part of the electronic device shown;

[0038] Figure 12 is Figure 3 a schematic partial structural diagram of the electronic device with a pressure plate installed;

[0039] Figure 13 is Figure 12 an enlarged schematic diagram of part B in;

[0040] Figure 14 is Figure 12 a schematic structural diagram of the pressure plate of the electronic device shown;

[0041] Figure 15 is Figure 1 a schematic layout diagram of another embodiment of the electronic device shown.

[0042] Explanation of reference numerals:

[0043] Electronic device 10; Display panel 100; Translucent cover plate 110; Display screen 120; Middle frame assembly 200; Middle plate 210; Battery compartment 211; Frame 220; Top frame 221; Bottom frame 222; Side frame 223; First electrical connection structure 230; Fixing part 231; Elastic sheet part 232; First end 2321; Second end 2322; Coating 2323; Flat plate sub - part 2324; Limiting part 2325; Tilted sub - part 2326; Plastic part 240; Accommodating groove 241; Positioning part 2411; Card slot 242; Perforation 243; Circuit board 300; Extension area 301; Main body area 302; Opening 3021; Top surface 303; Inductive component 304; Exposed copper area 305; Main board 310; Sub - board 320; Independent small board 330; Pressing plate 400; Buckle 410; Antenna 500; Extension part 510; First pad area 511; Second pad area 512; Second electrical connection structure 600; Reed 610; Broken - board elastic sheet 620; Straight - pin soldering leg 621; Rear cover 700; Battery 800; First direction X; Second direction Y. Detailed implementation manners

[0044] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0045] For the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and roles. For example, the first connection part and the second connection part are used to distinguish different connection parts, and the order thereof is not limited. Those skilled in the art can understand that the terms "first" and "second" do not limit the quantity and position, and the terms "first" and "second" do not necessarily mean different.

[0046] It should be noted that in the present application, words such as "exemplarily" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design solution described as "exemplarily" or "for example" in the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Exactly, using words such as "exemplarily" or "for example" is intended to present relevant concepts in a specific manner.

[0047] See Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the electronic device 10 provided by the embodiment of the present application, Figure 2 is Figure 1 a structural decomposition diagram of an embodiment of the electronic device 10 shown.

[0048] The electronic device 10 includes, but is not limited to, mobile phones, tablet computers (i.e., pads), virtual reality (VR) devices, laptop computers, personal computers (PCs), ultra-mobile personal computers (UMPCs), handheld computers, smart wearable devices, point-of-sale (POS) terminals, and other electronic products with wireless communication functions. In the embodiments of this application, the electronic device 10 is taken as an example of a mobile phone for illustration.

[0049] It can be understood that Figure 1 and Figure 2 only some components of the electronic device 10 are schematically shown, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 1 and Figure 2 defined.

[0050] As Figure 1 and Figure 2 shown, in the embodiments of this application, the electronic device 10 includes a display panel 100, a rear cover 700, and a middle frame assembly 200. Among them, the rear cover 700 is disposed opposite to the display panel 100. The middle frame assembly 200 includes a middle plate 210, the middle plate 210 is located between the display panel 100 and the rear cover 700, a battery compartment 211 is provided on one side of the middle plate 210 close to the rear cover 700, and the battery compartment 211 is used to accommodate a battery 800. The middle frame assembly 200 further includes a frame 220 disposed around the periphery of the middle plate 210, the frame 220 includes a top frame 221, a bottom frame 222, and side frames 223, the top frame 221 and the bottom frame 222 extend along a first direction X, the side frames 223 extend along a second direction Y, and the first direction X is perpendicular to the second direction Y.

[0051] See Figures 3 to 6 , Figure 3 is a schematic diagram of a partial structure of the electronic device 10 in the embodiments of this application; Figure 4 is Figure 3 an enlarged schematic diagram of part A in Figure 5 is Figure 3 a top view of the connection between the antenna 500 and the extended area 301 of the electronic device 10 shown in Figure 6 is Figure 3 a schematic diagram of the first electrical connection structure 230 of the electronic device 10 shown in

[0052] As Figures 3 to 6As shown, in the embodiment of the present application, the electronic device 10 further includes an antenna 500 and a circuit board 300. The antenna 500 is at least constituted by a partial area of the side frame 223. A first pad area 511 is provided on a surface of the antenna 500 close to the middle plate 210, and the first pad area 511 is located on one side of the battery compartment 211 in the first direction X. The circuit board 300 includes an extension area 301. The extension area 301 is located between the side frame 223 and the battery compartment 211, and a ground point is provided in the extension area 301.

[0053] The middle frame assembly 200 further includes a first electrical connection structure 230. The first electrical connection structure 230 includes a fixing part 231 and a spring piece part 232. The fixing part 231 is fixedly connected to the first pad area 511 of the antenna 500. The spring piece part 232 is located on a side of the fixing part 231 close to the battery compartment 211 and has a gap with the battery compartment 211. The spring piece part 232 extends along the second direction Y and has a first end 2321 and a second end 2322 in the second direction Y. The first end 2321 of the spring piece part 232 is connected to the fixing part 231, and the second end 2322 of the spring piece part 232 is in contact connection with the ground point of the circuit board 300.

[0054] In an embodiment of the present application, the electronic device 10 includes a middle frame assembly 200. The middle frame assembly 200 includes a middle plate 210. A battery compartment 211 is provided on the middle plate 210, and the battery compartment 211 can be used to place a battery 800. The middle frame assembly 200 further includes a side frame 220, and the side frame 220 can form an antenna 500 of the electronic device 10. The electronic device 10 further includes a circuit board 300. The circuit board 300 is provided with an extension area 301. The extension area 301 is located between the side frame 223 and the battery compartment 211. By providing the extension area 301, when the size of the battery compartment 211 in the second direction Y (for example, the length direction of the electronic device 10) increases, the circuit board 300 can have sufficient space dimensions in this direction to arrange the grounding point and feeding point of the antenna 500. In an embodiment of the present application, the middle frame assembly 200 further includes a first electrical connection structure 230. The first electrical connection structure 230 includes a fixing portion 231 and a spring piece portion 232. The fixing portion 231 can be fixedly connected to the first pad area 511 of the antenna 500. The spring piece portion 232 is located on the side of the fixing portion 231 close to the battery compartment 211. Since the spring piece portion 232 extends in the second direction Y, that is, in the direction parallel to the side frame 223, the size of the spring piece portion 232 in the first direction X, that is, in the direction perpendicular to the side frame 223, can be smaller. Furthermore, in the case where the space between the side frame 223 and the battery compartment 211 is relatively narrow, the spring piece portion 232 can be accommodated between the side frame 223 and the battery compartment 211. Further, by fixedly connecting the first end 2321 of the spring piece portion 232 to the fixing portion 231 and making the second end 2322 of the spring piece portion 232 extend in the second direction Y and then contact and connect to the grounding point of the circuit board 300, the size of the connection area between the spring piece portion 232 and the circuit board 300 in the first direction X can be smaller, so that the size of the extension area 301 of the circuit board 300 in the first direction X can be smaller, avoiding the size compression of the battery compartment 211 in the first direction X caused by the larger size of the extension area 301 in the first direction X, and further avoiding the reduction of the capacity of the battery 800, so as to realize the electrical connection between the antenna 500 and the circuit board 300 without affecting the capacity of the battery 800.

[0055] It should be understood that the orientation terms such as "top" and "bottom" used to describe the electronic device 10 in the embodiments of the present application are mainly described based on the orientation when the user holds the electronic device 10. The position facing the top side of the electronic device 10 is defined as "top", and the position facing the bottom side of the electronic device 10 is defined as "bottom". It does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the orientation of the electronic device 10 in the actual application scenario.

[0056] In an embodiment of the present application, the display panel 100 is used to display images, videos, etc. As Figure 2As shown in the figure, the display panel 100 may include a light-transmitting cover plate 110 and a display screen 120. The light-transmitting cover plate 110 and the display screen 120 are stacked and fixedly connected by means such as gluing. The light-transmitting cover plate 110 is mainly used to protect the display screen 120 and prevent dust. The display screen 120 may be a flexible display screen or a rigid display screen. The display screen may be an organic light-emitting diode display screen, an active matrix organic light-emitting diode display screen, or a mini light-emitting diode display screen, etc.

[0057] The display panel 100 may be disposed on one side of the middle frame assembly 200 by means such as bonding to fix the display panel 100 on the middle frame assembly 200. The side where the display panel 100 is located constitutes the front of the electronic device 10. The rear cover 700 forms the housing of the electronic device 10. The rear cover 700 may be fixed to the side of the middle frame assembly 200 opposite to the display panel 100 by bonding, clamping or other means. The rear cover 700 is used to protect the internal electronic components of the electronic device 10.

[0058] As Figure 2 shown in the figure, the electronic device 10 may further include a battery 800. The battery 800 is accommodated in the battery compartment 211 and is used to supply power to various electronic components in the electronic device 10, such as the circuit board 300. In the embodiment of the present application, the battery compartment 211 may be disposed on the side of the middle plate 210 close to the rear cover 700. In other embodiments of the present application, the battery compartment 211 may be disposed on the side of the middle plate 210 close to the display panel 100. The present application does not limit this.

[0059] In the embodiment of the present application, the first direction X may be the length direction of the electronic device 10, and the second direction Y may be the width direction of the electronic device 10. As Figure 2 and Figure 3 shown in the figure, on the middle plate 210, the distances between the battery compartment 211 and the top frame 221 and the bottom frame 222 are both greater than the distance between the battery compartment 211 and the side frame 223. Since the extended area 301 of the circuit board 300 is located between the battery compartment 211 and the side frame 223, and there are gaps between the battery compartment 211 and the side frame 223, the distance of the extended area 301 of the circuit board 300 in the first direction X is relatively narrow, and it is impossible to electrically connect to the extended area 301 of the circuit board 300 through the electrical connection components in the related art.

[0060] Specifically, in the related art, the electrical connection components generally include a reed and a spring piece. The reed is fixedly connected to the antenna, one end of the spring piece abuts against the reed, and the other end of the spring piece is connected to the circuit board. The spring piece generally includes structures such as an under-board spring piece and a broken-board spring piece.

[0061] In the related art, the under-board elastic sheet is generally disposed on one side of the circuit board 300 close to the display panel 100, and the height of the under-board elastic sheet is generally 6 mm. Due to the thin and light design of the electronic device 10, in the thickness direction of the electronic device 10, the gap between one side of the circuit board 300 close to the display panel 100 and the middle frame assembly 200 is small. If the under-board elastic sheet is used, the middle frame assembly 200 needs to be perforated, which will have an adverse impact on the waterproof performance of the electronic device 10. Therefore, the under-board elastic sheet cannot be used to electrically connect to the extended area 301 of the circuit board 300.

[0062] In the related art, two pins are generally oppositely arranged on the break-board elastic sheet, and two openings are correspondingly arranged on the circuit board. The break-board elastic sheet is electrically connected to the circuit board 300 by welding the pins in the openings. If the break-board elastic sheet is used to electrically connect to the extended area 301, two openings need to be provided in the extended area 301. This will not only increase the size of the extended area 301 in the first direction X, resulting in a reduction in the size of the battery compartment 211 and a decrease in the capacity of the battery 800, but also increase the risk of scraping the elastic sheet during assembly. Moreover, since the width value at the opening of the extended area 301 is extremely small, the risk of board breakage is high. Therefore, the break-board elastic sheet cannot be used to electrically connect to the extended area 301 of the circuit board 300 either.

[0063] In addition, due to problems such as low strength, complex process, or great impact on the performance of the antenna 500, other elastic sheet structures in the related art are not suitable for electrically connecting between the antenna 500 and the extended area 301 of the circuit board 300.

[0064] Different from the elastic sheet structure in the related art, such as Figure 4 and Figure 5As shown, when electrically connecting through the extension area 301 of the circuit board 300 with the first electrical connection structure 230 in the embodiments of the present application, since the elastic piece portion 232 extends along the second direction Y, that is, the direction parallel to the side frame 223, therefore, the size of the elastic piece portion 232 in the first direction X can be smaller, and the length dimension of the elastic piece portion 232 in the second direction Y can be longer. By making the length dimension of the elastic piece portion 232 in the second direction Y longer, it can not only make the height value of the entire elastic piece portion 232 lower, avoiding interference with the middle frame assembly 200 in the thickness direction of the electronic device 10, but also enable the elastic piece portion 232 to meet certain elastic force requirements and have greater strength. Further, the size of the elastic piece portion 232 in the first direction X is smaller, and after the elastic piece portion 232 extends along the second direction Y and contacts and connects with the circuit board 300, thus, the contact area between the elastic piece portion 232 and the circuit board 300 in the first direction X can be smaller, so that the size of the extension area 301 of the circuit board 300 in the first direction X is smaller, avoiding affecting the size of the battery compartment 211, and further avoiding reducing the capacity of the battery 800. In addition, since the elastic piece portion 232 is in contact connection with the circuit board 300, therefore, no opening needs to be provided on the extension area 301 of the circuit board 300, thus avoiding the lower strength of the extension area 301 and being beneficial to improving the reliability of the extension area 301. In summary, by using the first electrical connection structure 230 in the embodiments of the present application, the electrical connection between the antenna 500 and the extension area 301 of the circuit board 300 can be realized without affecting the capacity of the battery 800, and the connection stability is relatively good.

[0065] In the embodiments of the present application, the size of the elastic piece portion 232 in the first direction X is less than or equal to 2 mm, and the height value of the elastic piece portion 232 in the thickness direction of the electronic device 10 is less than or equal to 0.5 mm.

[0066] In a specific embodiment, the size of the elastic piece portion 232 in the first direction X is 1.2 mm, and the height value of the elastic piece portion 232 in the thickness direction of the electronic device 10 is 0.35 mm. In actual application, the size of the elastic piece portion 232 is related to the size of the electronic device 10. When the size of the electronic device 10 is different, the size of the elastic piece portion 232 is also different, and the present application does not limit this.

[0067] As Figure 6 shown, in the embodiments of the present application, the fixing portion 231 and the elastic piece portion 232 of the first electrical connection structure 230 can be integrally formed. Since the fixing portion 231 can play the role of the reed 610 in the related art, therefore, by integrally forming the fixing portion 231 and the elastic piece portion 232, the first electrical connection structure 230 is equivalent to integrating two structural components, namely the reed and the elastic piece, in the related art, so that the first electrical connection structure 230 can be relatively compact and have a smaller size.

[0068] In a specific embodiment, asFigure 4 As shown, the fixing part 231 can be a sheet-like structure, and the fixing part 231 is fixed on the surface of the first pad area 511 of the antenna 500 by welding.

[0069] See Figures 7 to 10 , Figure 7 is Figure 3 a schematic structural diagram of the antenna 500 of the electronic device 10 shown; Figure 8 is Figure 3 a schematic structural diagram of the circuit board of the electronic device shown; Figure 9 is Figure 3 a schematic connection diagram of the first electrical connection structure 230 of the electronic device 10 with the antenna 500 and the extension area 301; Figure 10 is Figure 9 a side view of

[0070] As Figure 4 and 7 shown, in the embodiment of the present application, the part of the antenna 500 provided with the first pad area 511 protrudes in the direction close to the middle plate 210 to form an extension part 510, and the first pad area 511 is located on the surface of the extension part 510 close to the middle plate 210. By setting the extension part 510, it is convenient for the connection between the antenna 500 and the circuit board 300, and the part of the antenna 500 without the extension part 510 can have a larger clearance area, which is beneficial to improving the performance of the antenna 500. It should be noted that the clearance area mainly refers to the blank area around the antenna 500 of the electronic device 10. In order to ensure that the antenna 500 obtains a larger bandwidth, sufficient clearance area needs to be reserved for the antenna 500.

[0071] As Figure 5 , Figures 8 to 10As shown, in the embodiment of the present application, the side of the circuit board 300 close to the display panel 100 is the top surface 303, and the grounding point is located on the top surface 303 of the circuit board 300. The elastic sheet portion 232 is located on the side of the circuit board 300 close to the display panel 100 (not shown in the figure). The elastic sheet portion 232 may include a flat sub-portion 2324 and an inclined sub-portion 2326. The surface of the flat sub-portion 2324 away from the battery compartment 211 is connected to the bottom of the fixing portion 231. One end of the inclined sub-portion 2326 is connected to the flat sub-portion 2324, and the other end of the inclined sub-portion 2326 extends in the direction close to the top surface 303 of the circuit board 300 and is in contact connection with the grounding point. By providing the flat sub-portion 2324, it is convenient to connect with the fixing portion 231. By providing the inclined sub-portion 2326 and fixing one end of the inclined sub-portion 2326 to the flat sub-portion 2324, the other end of the inclined sub-portion 2326 is an active end. Under a certain pressure, the other end of the inclined sub-portion 2326, that is, the active end, can abut against the circuit board 300, realizing the contact connection between the elastic sheet portion 232 and the grounding point on the circuit board 300, and the stability is relatively high.

[0072] Further, as Figure 6 shown, a plating layer 2323 is provided at the second end 2322 of the elastic sheet portion 232, that is, the active end of the inclined sub-portion 2326 is provided with the plating layer 2323. Thus, the second end 2322 of the elastic sheet portion 232 can be protected, improving its corrosion resistance and wear resistance, and further improving the connection reliability between the elastic sheet portion 232 and the grounding point. In a specific embodiment, the material of the plating layer 2323 is gold or nickel.

[0073] As Figure 8 shown, a copper leakage area 305 is provided on the circuit board 300, and the grounding point is located in the copper leakage area 305. By providing the copper leakage area 305 on the circuit board 300, not only can the contact connection between the first electrical connection structure 230 and the circuit board 300 be realized, but also the structure of the circuit board 300 is simple and convenient to manufacture.

[0074] Refer to Figure 11 , Figure 11 which is Figure 3 a schematic structural diagram of the plastic part 240 of the electronic device 10 shown.

[0075] As Figures 3 to 5 and Figure 11As shown, in the embodiment of the present application, the middle frame assembly 200 further includes a plastic part 240. The plastic part 240 is located between the frame 220 and the middle plate 210. By providing the plastic part 240, the space between the frame 220 and the middle plate 210 can be sealed, preventing water vapor entering from the display panel 100 side from entering the space between the middle plate 210 and the rear cover 700 through the gap between the frame 220 and the middle plate 210, thereby protecting components such as electronic components and the battery 800 located between the middle plate 210 and the rear cover 700.

[0076] Further, as Figure 11 shown, the plastic part 240 is provided with a perforation 243 corresponding to the extension part 510 of the antenna 500, so that the extension part 510 passes through the perforation 243 and is connected to the circuit board 300.

[0077] As Figure 4 、 Figure 5 and Figure 11 shown, a receiving groove 241 is provided on the surface of the plastic part 240 facing away from the display panel 100, and the elastic piece part 232 is received in the receiving groove 241. By providing the receiving groove 241 on the plastic part 240, the elastic piece part 232 can be installed in the receiving groove 241, and a certain supporting force is provided for the elastic piece part 232 in the thickness direction of the electronic device 10, so that the elastic piece part 232 can be in close contact with the circuit board 300.

[0078] Further, a positioning part 2411 is provided in the receiving groove 241, and a limiting part 2325 matching the positioning part 2411 is provided on the flat part 2324. By providing the positioning part 2411 in the receiving groove 241 and the limiting part 2325 matching the positioning part 2411 on the flat part 2324, when installing the first electrical connection structure 230, it is convenient to position the first electrical connection structure 230 by matching the limiting part 2325 and the positioning part 2411, ensuring that after installation, the fixing part 231 can be aligned with the first pad area 511, and the second end 2322 of the limiting part 2325 can be aligned with the grounding point of the circuit board 300, improving the installation accuracy.

[0079] In a specific embodiment, the positioning part 2411 is a protrusion provided by one side wall of the receiving groove 241 facing the elastic piece part 232, and the limiting part 2325 is a groove provided on the flat part 2324 and matching the protrusion structure. By matching the protrusion and the groove, the first electrical connection structure 230 can be positioned during installation.

[0080] See Figures 12 to 14 , where Figure 12 is Figure 3 a schematic structural diagram of the electronic device 10 with the pressing plate 400 installed; Figure 13 isFigure 12 Schematic enlarged view of part B Figure 14 is Figure 12 Schematic structural view of the pressing plate 400 of the electronic device 10 shown

[0081] As Figures 12 to 14 shown, in the embodiment of the present application, the electronic device 10 further includes a pressing plate 400, and the pressing plate 400 is located on the side of the circuit board 300 away from the display panel 100. By providing the pressing plate 400, it can play a role in fixing some electronic components buckled on the circuit board 300, and avoid the dropping of these electronic components when the electronic device 10 shakes.

[0082] Furthermore, as Figure 11 shown, a card slot 242 is provided on the plastic part 240. As Figure 13 shown, a buckle 410 is provided on one side of the pressing plate 400 close to the side frame 223, and the buckle 410 is inserted into the card slot 242, so that the part of the pressing plate 400 corresponding to the extension area 301 of the circuit board 300 abuts against the side of the circuit board 300 away from the elastic piece part 232. Thus, the pressing plate 400 can apply pressure to the circuit board 300 in the thickness direction of the electronic device 10, so that the circuit board 300 is in close contact with the first electrical connection structure 230. By providing the buckle 410 on the pressing plate 400 and the card slot 242 on the plastic part 240, the positions of the pressing plate 400 and the plastic part 240 can be matched in the thickness direction of the electronic device 10, so as to play a fixing role on the first electrical connection structure 230 and the circuit board 300 located between the pressing plate 400 and the plastic part 240, and ensure the connection stability of the circuit board 300 and the first electrical connection structure 230.

[0083] In the embodiment of the present application, as Figure 4 shown, an inductance element 304 is provided on the circuit board 300, and the ground connection point is connected to the ground layer of the circuit board 300 through the inductance element 304. Thus, after the antenna 500 is connected to the ground connection point through the first electrical connection structure 230, it can be grounded through the inductance element 304, which is beneficial to improving the performance of the antenna 500.

[0084] It should be noted that in the related art, the antenna can be directly grounded by connecting to the middle plate, but direct grounding will reduce the antenna performance. Therefore, in the embodiment of the present application, the antenna 500 is not directly connected to the middle plate 210 in the first direction X through the first electrical connection structure 230, but is connected to the circuit board 300 after the elastic piece part 232 extends along the second direction Y, so that the antenna 500 can be grounded through the inductance element 304 provided on the circuit board 300, which is beneficial to improving the performance of the antenna 500.

[0085] In the embodiment of the present application, as Figure 3 andFigure 4 As shown, the circuit board 300 further includes a main body area 302, which is located on the side of the battery compartment 211 close to the bottom frame 222. The main body area 302 is provided with a feeding point; on the side surface of the antenna 500 close to the middle plate 210, a second pad area 512 is further provided. The second pad area 512 is spaced from the first pad area 511. The second pad area 512 is located on one side of the main body area 302 in the first direction X. The second pad area 512 is electrically connected to the feeding point of the circuit board 300 through a second electrical connection structure 600. Thus, the antenna 500 can be electrically connected to a feeding source (such as a radio frequency module) on the circuit board 300 through the feeding point.

[0086] In the embodiment of the present application, as Figure 7 shown, the part of the antenna 500 provided with the second pad area 512 also protrudes in the direction close to the middle plate 210 to form an extension part 510. The second pad area 512 is located on the side surface of the extension part 510 close to the middle plate 210.

[0087] Further, as Figure 4 shown, in the first direction X, the distance between the second pad area 512 and the main body area 302 of the circuit board 300 is greater than the distance between the first pad area 511 and the extension area 301.

[0088] Specifically, since the main body area 302 of the circuit board 300 is located on the side of the battery compartment 211 close to the bottom frame 222, the distance between the main body area 302 and the side frame 223 is set such that it will not affect the size of the battery compartment 211. Therefore, the distance between the main body area 302 of the circuit board 300 and the side frame 223 can be relatively large. Further, considering that the connection between the antenna 500 and the ground point has a relatively low requirement for the clearance area, while the connection between the antenna 500 and the feeding point requires a relatively large clearance area. Therefore, in the embodiment of the present application, the ground point is set in the extension area 301 of the circuit board 300, and the feeding point is set in the main body area 302. And, in the first direction X, the distance between the second pad area 512 and the circuit board 300 is made greater than the distance between the first pad area 511 and the circuit board 300. Thus, while ensuring that the distance between the feeding point and the ground point in the second direction Y meets the requirements, it is possible to save the connection space between the first pad area 511 and the ground point of the circuit board 300, realize the electrical connection between the antenna 500 and the ground point of the circuit board 300 in a narrow area, and at the same time expand the clearance area of the second pad area 512, thereby improving the performance of the antenna 500.

[0089] In the embodiment of the present application, as Figure 4As shown, the second pad area 512 is electrically connected to the feeding point of the circuit board 300 through the second electrical connection structure 600. The second electrical connection structure 600 includes a reed 610 and a breaking plate spring piece 620. The reed 610 is fixedly connected to the second pad area 512. The breaking plate spring piece 620 extends along the first direction X. One end of the breaking plate spring piece 620 abuts against the reed 610, and the other end of the breaking plate spring piece 620 is fixed on the circuit board 300. Considering the relatively large distance between the second pad area 512 and the circuit board 300, in the embodiment of the present application, the second electrical connection structure 600 adopts a split reed 610 and breaking plate spring piece 620, wherein one end of the breaking plate spring piece 620 abuts against the reed 610, and the other end extends along the first direction X and is fixed to the circuit board 300. Thus, the current emitted from the feeding point of the circuit board 300 can directly enter the antenna 500 along the first direction X, and its flowing path is a straight line without turning, so that the flowing path is shorter, which is beneficial to improving the performance of the antenna 500.

[0090] As Figure 4 shown, in the second electrical connection structure 600, the reed 610 is an L-shaped structure. The reed 610 includes a vertical portion and a horizontal portion. The vertical portion is directly fixed to the second pad area 512. One end of the breaking plate spring piece 620 abuts against the horizontal portion of the reed 610, and the other end is provided with two straight insertion welding feet 621.

[0091] As Figure 8 shown, an opening 3021 is provided at the feeding point of the circuit board 300. The straight insertion welding feet 621 of the breaking plate spring piece 620 are welded in the opening 3021. Thus, the electrical connection between the antenna 500 and the feeding point can be realized through the second electrical connection structure 600.

[0092] In the embodiment of the present application, as Figure 1 shown, the circuit board 300 includes a main board 310 and a sub-board 320. The main board 310 and the sub-board 320 are respectively located on both sides of the battery compartment 211 along the second direction Y. The main board 310 is located on the side of the battery compartment 211 close to the top frame 221. The main board 310 is used to integrate a control chip. In some embodiments, the main board 310 can be electrically connected to the display panel 100. The sub-board 320 is located on the side of the battery compartment 211 close to the bottom frame 222. The sub-board 320 can be used to integrate electronic components such as the radio frequency front end of the antenna 500 and universal serial bus devices. The main board 310 and the sub-board 320 can be electrically connected through a flexible circuit board or a wire, etc.

[0093] In an embodiment of the present application, a part of the secondary board 320 extends between the side frame 223 and the battery compartment 211 to form an extended area 301. The part of the secondary board 320 other than the extended area 301 is the main body area 302. The grounding point and the feeding point are both set on the secondary board 320. Considering that components such as inductors are usually integrated on the secondary board 320, therefore, by extending a part of the secondary board 320 between the side frame 223 and the battery compartment 211 to form the extended area 301 and making the grounding point located on the secondary board 320, it is convenient to realize the electrical connection between the grounding point and the inductor component 304, so that the inductor can be grounded after the antenna 500 is electrically connected to the grounding point, which is beneficial to improving the performance of the antenna 500.

[0094] In other embodiments of the present application, according to the specific structural design inside the electronic device 10, a part of the main board 310 can also be extended between the side frame 223 and the battery compartment 211 to form the extended area 301. The part of the main board 310 other than the extended area 301 is the main body area 302. The grounding point and the feeding point can be set on the main board 310. Thus, the internal structural layout of the electronic device 10 can be made more reasonable, and it is also convenient to improve the existing electronic device. The present application does not limit this.

[0095] See Figure 15 , Figure 15 For Figure 1 the layout schematic diagram of another embodiment of the illustrated electronic device 10.

[0096] As Figure 15 shown, in the second embodiment of the present application, different from the first embodiment, in addition to the main board 310 and the secondary board 320, the circuit board 300 can also include an independently provided small board 330. The small board 330 is located between the battery compartment 211 and the side frame 223. The small board 330 is used to form the extended area 301, and the grounding point can be set on the small board 330. The secondary board 320 or the main board 310 can form the main body area 302, and the feeding point is set on the secondary board 320 or the main board 310. Thus, the main board 310 and the secondary board 320 can use existing products, which is convenient for configuration.

[0097] It should be noted that in the examples and the description of this patent, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one" does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0098] Although this application has been illustrated and described by reference to certain preferred embodiments thereof, those of ordinary skill in the art should understand that various changes may be made therein in form and detail without departing from the spirit and scope of this application.

Claims

1. An electronic device, characterized in that, Comprising: A display panel; A rear cover, which is disposed opposite to the display panel; A middle frame assembly, including a middle plate, which is located between the display panel and the rear cover. A battery compartment is provided on one side of the middle plate close to the rear cover or on one side close to the display panel, and the battery compartment is used to accommodate a battery; the middle frame assembly further includes a frame surrounding the periphery of the middle plate; the frame includes a top frame, a bottom frame and side frames, the top frame and the bottom frame extend in a first direction, and the side frames extend in a second direction, and the first direction is perpendicular to the second direction; An antenna, which is at least formed by a partial area of the side frame. A first pad area is provided on a surface of the antenna close to the middle plate, and the first pad area is located on one side of the battery compartment in the first direction; A circuit board, including an extended area, which is located between the side frame and the battery compartment, and a grounding point is provided in the extended area; The middle frame assembly further includes a first electrical connection structure, which includes a fixing part and a spring piece part. The fixing part is fixedly connected to the first pad area of the antenna. The spring piece part is located on a side of the fixing part close to the battery compartment and has a gap with the battery compartment. The spring piece part extends in the second direction and has a first end and a second end in the second direction. The first end of the spring piece part is connected to the fixing part, and the second end of the spring piece part is in contact connection with the grounding point of the circuit board.

2. The electronic device according to claim 1, characterized in that, The fixing part and the spring piece part are integrally formed.

3. The electronic device according to claim 1, characterized in that, The side of the circuit board close to the display panel is the top surface, and the grounding point is located on the top surface of the circuit board; The spring piece part is located on a side of the circuit board close to the display panel. The spring piece part includes a flat sub-part and an inclined sub-part. A surface of the flat sub-part away from the battery compartment is connected to the fixing part. One end of the inclined sub-part is connected to the flat sub-part, and the other end of the inclined sub-part extends in a direction close to the top surface of the circuit board and is in contact connection with the grounding point.

4. The electronic device according to claim 3, characterized in that, The middle frame assembly further includes a plastic part, which is located between the frame and the middle plate. A receiving groove is provided on a surface of the plastic part facing away from the display panel, and the spring piece part is received in the receiving groove.

5. The electronic device according to claim 4, characterized in that, A positioning part is provided in the receiving groove, and a limiting part matching with the positioning part is provided on the flat sub-part.

6. The electronic device according to claim 4, characterized in that, The electronic device further includes a pressing plate, which is located on a side of the circuit board facing away from the display panel. A buckle is provided on a side of the pressing plate close to the side frame, and a slot is provided on the plastic part. The buckle is inserted into the slot so that a part of the pressing plate corresponding to the extended area of the circuit board abuts against a side of the circuit board facing away from the spring piece part.

7. The electronic device according to claim 1, characterized in that, A plating layer is provided at the second end of the spring piece part.

8. The electronic device according to claim 1, characterized in that, A copper leakage area is provided on the circuit board, and the grounding point is located in the copper leakage area.

9. The electronic device according to claim 1, characterized in that, An inductive element is provided on the circuit board, and the grounding point is connected to the grounding layer of the circuit board through the inductive element.

10. The electronic device according to claim 1, characterized in that, The circuit board further includes a main body area, which is located on one side of the battery compartment close to the top border or the bottom border. A feeding point is provided in the main body area. On the surface of the antenna close to the middle plate, a second pad area is further provided. The second pad area is spaced from the first pad area. The second pad area is located on one side of the main body area in the first direction. The second pad area is electrically connected to the feeding point of the circuit board through a second electrical connection structure.

11. The electronic device according to claim 10, characterized in that, In the first direction, the distance between the second pad area and the main body area is greater than the distance between the first pad area and the extended area.

12. The electronic device according to claim 10, characterized in that, The part of the antenna provided with the first pad area and the second pad area protrudes in the direction close to the middle plate to form an extended part. The first pad area and the second pad area are located on the surface of the extended part close to the middle plate.

13. The electronic device according to claim 10, characterized in that, The second electrical connection structure includes a reed and a break-board spring piece. The reed is fixedly connected to the second pad area. The break-board spring piece extends along the first direction. One end of the break-board spring piece abuts against the reed, and the other end of the break-board spring piece is fixed on the circuit board.

14. The electronic device according to claim 1, characterized in that, The circuit board includes a main board and a sub-board. The main board and the sub-board are respectively located on both sides of the battery compartment along the second direction. A part of the sub-board extends between the side border and the battery compartment to form the extended area. Alternatively, a part of the main board extends between the side border and the battery compartment to form the extended area. Alternatively, the circuit board further includes an independent small board, which is located between the battery compartment and the side border. The independent small board is used to form the extended area.

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