Electronic device

Abstract

Embodiments of the present application provide an electronic device, comprising a display panel, a rear cover, a middle frame assembly, and an antenna. The antenna is at least composed of a partial region of a side frame, and a first pad region is provided on the surface of the side of the antenna close to a middle plate. A circuit board comprises an extension region, the extension region is located between the side frame and a battery compartment, and a ground point is provided in the extension region. The middle frame assembly further comprises a first electrical connection structure; the first electrical connection structure comprises a fixing portion and an elastic piece portion; the fixing portion is fixedly connected to the first pad region of the antenna; the elastic piece portion is located on the side of the fixing portion close to the battery compartment; the elastic piece portion extends in a second direction; a first end of the elastic piece portion is connected to the fixing portion, and a second end of the elastic piece portion is in contact with and connected to the ground point of the circuit board. By providing the first electrical connection structure, electrical connection between the antenna and the circuit board can be achieved at a narrow region between the side frame and the battery compartment, and the battery capacity will not be affected.

Description

An electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on December 8, 2023, with application number 202311688074.4 and invention name “An Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment. Background Art

[0003] Smart terminals such as mobile phones need to communicate through the mobile communication network provided by operators. They can also achieve communication connections between smart devices through various methods such as WIFI, Bluetooth, infrared, etc. For mobile phones, communication signals are sent and received through antennas. The antennas are generally located in the frame area of ​​the mobile phone. The antennas can be electrically connected to the feeding points and grounding points set on the mobile phone circuit board through electrical connection components to achieve signal transmission and reception.

[0004] In related technologies, a battery compartment is provided inside a mobile phone for placing batteries. The circuit board is generally located at the top or bottom of the battery compartment. In order to ensure the performance of the antenna, the distance between the feeding point and the grounding point on the circuit board in the extension direction of the antenna needs to be greater than 4.5 mm.

[0005] However, at present, with the increase in consumer demand, the thickness of mobile phones continues to decrease. In order 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. In order to ensure that the distance between the feeding point and the grounding point of the circuit board set along the length direction of the mobile phone meets the requirements, a part of the circuit board needs to be extended between the side of the battery compartment and the frame of the mobile phone, and a grounding point or feeding point needs to be set on the extended part.

[0006] Since the area between the side of the battery compartment and the mobile phone frame is narrow, in order to ensure that the size of the battery compartment is not affected, the width of the circuit board extending into the side of the battery compartment is narrow, and the thickness of the entire device is thin. The electrical connection components in the related art generally include two parts: a spring and a spring that are separately arranged. The spring has certain thickness requirements or width requirements. Therefore, the electrical connection components in the related art cannot be used to achieve electrical connection between the antenna and the part of the circuit board extending into the side of the battery compartment.

[0007] Summary of the Invention

[0008] The purpose of the embodiments of the present application is to provide an electronic device that can achieve electrical connection between an antenna and a circuit board in a relatively narrow area inside the electronic device. The specific technical solution is as follows:

[0009] An embodiment of the present application provides an electronic device, comprising: a display panel; a back cover, arranged opposite to the display panel; a middle frame assembly, comprising a middle plate, located between the display panel and the back cover, a battery compartment being provided on a side of the middle plate close to the back cover or a side close to the display panel, the battery compartment being used to accommodate a battery; the middle frame assembly further comprising a frame provided around the circumference of the middle plate; the frame comprising a top frame, a bottom frame and a side frame, the top frame and the bottom frame extending in a first direction, the side frame extending in a second direction, the first direction being perpendicular to the second direction; an antenna, at least consisting of a portion of the side frame, the antenna being provided on a surface of a side close to the middle plate A solder pad area, the first solder pad area is located on one side of the battery compartment in the first direction; a circuit board, including 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 also includes a first electrical connection structure, the first electrical connection structure includes a fixed portion and a spring portion, the fixed portion is fixedly connected to the first solder pad area of ​​the antenna, the spring portion is located on a side of the fixed portion close to the battery compartment and has a gap with the battery compartment, the spring portion extends along the second direction and has a first end and a second end in the second direction, the first end of the spring portion is connected to the fixed portion, and the second end of the spring portion is in contact with the grounding point of the circuit board.

[0010] In an embodiment of the present application, an electronic device includes a middle frame assembly, which includes a middle plate, on which a battery compartment is provided, and the battery compartment can be used to accommodate a battery; the middle frame assembly also includes a frame, and the frame can form an antenna for the electronic device. The electronic device also includes a circuit board, and the circuit board is provided with an extension area, and the extension area is located between the side frame and the battery compartment. By providing the extension area, when the size of the battery compartment increases along a second direction (e.g., the length of the electronic device), the circuit board can have sufficient space in this direction to arrange the ground point and feed point of the antenna. In an embodiment of the present application, the middle frame assembly also includes a first electrical connection structure, which includes a fixing portion and a spring portion. The fixing portion can be fixedly connected to the first solder pad area of ​​the antenna, and the spring portion is located on the side of the fixing portion close to the battery compartment. Since the spring portion extends along the second direction, that is, in a direction parallel to the side frame, the size of the spring portion in the first direction, that is, perpendicular to the side frame, can be smaller, and thus when the space between the side frame and the battery compartment is narrow, the spring portion can be accommodated between the side frame and the battery compartment; further, by fixing the first end of the spring portion to the fixing portion, and extending the second end of the spring portion along the second direction and contacting and connecting with the grounding point of the circuit board, the size of the connection area between the spring 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, thereby 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, thereby avoiding the reduction of the battery capacity, so that the electrical connection between the antenna and the circuit board is achieved without affecting the battery capacity.

[0011] In some embodiments of the present application, the fixing portion and the elastic portion are integrally formed. By integrally forming the fixing portion and the elastic portion, the first electrical connection structure can be made more compact and smaller in size.

[0012] 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 portion is located on the side of the circuit board close to the display panel, and the spring portion includes a flat sub-portion and an inclined sub-portion, a side surface of the flat sub-portion away from the battery compartment is connected to the fixed 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 is in contact with the grounding point.

[0013] By setting up the flat sub-section, it is convenient to connect with the fixed section. By setting up the inclined sub-section and fixing one end of the inclined sub-section to the flat sub-section, the other end of the inclined sub-section is made a movable end. Under a certain pressure, the other end of the inclined sub-section, that is, the movable end, can abut against the circuit board, thereby realizing contact connection between the spring section and the grounding point of the circuit board, and the stability is relatively high.

[0014] 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 spring portion is received in the receiving groove.

[0015] By providing a plastic part, a seal can be established between the frame and the middle plate, preventing moisture entering from the display panel side from entering between the middle plate and the back cover through the gap between the frame and the middle plate, thereby protecting electronic components, batteries, and other parts located between the middle plate and the back cover. Furthermore, by providing a receiving groove in the plastic part, the spring portion can be installed in the receiving groove, providing a certain support force for the spring portion in the thickness direction of the electronic device, so that the spring portion can be tightly abutted against the circuit board.

[0016] In some embodiments of the present application, a positioning portion is provided within the receiving groove, and a limiting portion is provided on the flat plate sub-portion to cooperate with the positioning portion. Providing the positioning portion within the receiving groove and providing the limiting portion on the flat plate sub-portion to cooperate with the positioning portion facilitates positioning of the first electrical connection structure during installation by cooperating with the limiting portion and the positioning portion. This ensures that, after installation, the fixing portion is aligned with the first pad area, and the second end of the limiting portion is aligned with the grounding point of the circuit board, thereby improving installation accuracy.

[0017] In some embodiments of the present application, the electronic device further comprises a pressure plate, the pressure plate being located on a side of the circuit board facing away from the display panel, a clip being provided on a side of the pressure plate close to the side frame, the plastic part being provided with a slot, the clip being inserted into the slot so that a portion of the pressure plate corresponding to the extended area of ​​the circuit board abuts against a side of the circuit board facing away from the spring portion. Thus, the pressure plate and the plastic part can be aligned in the thickness direction of the electronic device, thereby securing the first electrical connection structure and the circuit board between the pressure plate and the plastic part, and ensuring the stability of the connection between the circuit board and the first electrical connection structure.

[0018] In some embodiments of the present application, the second end of the spring portion is provided with a coating, thereby protecting the second end of the spring portion, improving its corrosion resistance and wear resistance, and further improving the connection reliability between the spring portion and the grounding point.

[0019] In some embodiments of the present application, a copper leakage area is provided on the circuit board, and the grounding point is located in the copper leakage area. Providing the copper leakage area on the circuit board not only enables contact connection between the first electrical connection structure and the circuit board, but also simplifies the structure of the circuit board and facilitates manufacturing.

[0020] In some embodiments of the present application, an inductor is provided on the circuit board, and the grounding point is connected to the ground layer of the circuit board via the inductor. Thus, after the antenna is connected to the grounding point via the first electrical connection structure, it can be grounded via the inductor, which is beneficial for improving antenna performance.

[0021] In some embodiments of the present application, the circuit board further includes a main body area, the main body area being located on a side of the battery compartment near the top frame or the bottom frame, and the main body area being provided with a feed point; the antenna further includes a second solder pad area on a surface on a side near the mid-plate, the second solder pad area being spaced apart from the first solder pad area, the second solder pad area being located on one side of the main body area in the first direction, and the second solder pad area being electrically connected to the feed point of the circuit board via a second electrical connection structure. Thus, the antenna can be electrically connected to a feed source (e.g., a radio frequency module) on the circuit board via the feed point.

[0022] 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 feed point and the ground point in the second direction meets the required distance, this can not only save connection space between the first pad area and the ground point of the circuit board, enabling electrical connection between the antenna and the ground point of the circuit board in a narrow area, but also expand the clearance area of ​​the second pad area, thereby improving antenna performance.

[0023] In some embodiments of the present application, the portion of the antenna where the first and second solder pad areas are located protrudes toward the midboard, forming an extension. The first and second solder pad areas are located on a side of the extension that is closer to the midboard. The provision of the extension facilitates connection between the antenna and the circuit board while also providing a larger clearance area in the portion of the antenna where the extension is not located, thereby improving antenna performance.

[0024] In some embodiments of the present application, the second electrical connection structure includes a spring and a board-breaking spring, the spring is fixedly connected to the second pad area, the board-breaking spring extends along the first direction, one end of the board-breaking spring abuts against the spring, and the other end of the board-breaking spring is fixed to the circuit board. The second electrical connection structure can achieve electrical connection when the antenna and the circuit board are relatively far apart. By extending the board-breaking spring along the first direction, the current emitted from the circuit board feed source can be directly fed into the antenna along the first direction, and its flow path is straight without turning, thereby shortening the flow path and improving antenna performance.

[0025] In some embodiments of the present application, the circuit board includes a main board and a sub-board, the main board and the sub-board being located on either side of the battery compartment along the second direction, respectively; a portion of the sub-board extends between the side frame and the battery compartment to form the extended region. Since components such as inductors are typically integrated into the sub-board, forming an extended region with a portion of the sub-board allows for a grounding point to be provided on the sub-board, thereby facilitating grounding of the antenna's inductor.

[0026] In some embodiments of the present application, a portion of the mainboard extends between the side frame and the battery compartment to form the extended region. In practical applications, the extended region can be provided based on the specific structure of the electronic device, thereby making the internal structure layout of the electronic device more reasonable and facilitating improvements to existing electronic devices.

[0027] 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 is used to form the extended area. As a result, the main board and sub-board can directly use existing products, facilitating configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying any creative work.

[0029] FIG1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0030] FIG2 is an exploded view of the structure of an embodiment of the electronic device shown in FIG1 ;

[0031] FIG3 is a schematic diagram of a partial structure of an electronic device according to an embodiment of the present application (without the pressure plate);

[0032] FIG4 is an enlarged schematic diagram of part A in FIG3 ;

[0033] FIG5 is a top view of the connection between the antenna and the extension area of ​​the electronic device shown in FIG3 ;

[0034] FIG6 is a schematic diagram of a first electrical connection structure of the electronic device shown in FIG3 ;

[0035] FIG7 is a schematic structural diagram of an antenna of the electronic device shown in FIG3 ;

[0036] FIG8 is a schematic structural diagram of a circuit board of the electronic device shown in FIG3 ;

[0037] FIG9 is a schematic diagram illustrating connections between the first electrical connection structure of the electronic device shown in FIG3 , the antenna, and the extension area;

[0038] FIG10 is a side view of FIG9;

[0039] FIG11 is a schematic structural diagram of a plastic component of the electronic device shown in FIG3 ;

[0040] FIG12 is a schematic diagram of a partial structure of the electronic device shown in FIG3 with a pressure plate installed;

[0041] FIG13 is an enlarged schematic diagram of portion B in FIG12 ;

[0042] FIG14 is a schematic structural diagram of a pressure plate of the electronic device shown in FIG12 ;

[0043] FIG15 is a schematic diagram showing the arrangement of another embodiment of the electronic device shown in FIG1 .

[0044] Description of Reference Numerals: Electronic device 10; display panel 100; light-transmitting 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 portion 231; spring portion 232; first end 2321; second end 2322; plating layer 2323; flat sub-portion 2324; limiting portion 2325; tilting sub-portion 2326; plastic component 240; receiving groove 241; positioning portion 2411; latching slot 242; perforation 243; circuit board 300; extension area 301; main body area 302; opening 3021; ​​top surface 303; inductor 304; copper leakage area 305; main board 310; sub-board 320; independent small board 330; pressing plate 400; buckle 410; antenna 500; extension portion 510; First pad area 511 ; second pad area 512 ; second electrical connection structure 600 ; spring 610 ; board-breaking spring 620 ; direct-insert solder pin 621 ; back cover 700 ; battery 800 ; first direction X; second direction Y. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the described examples are only some examples of the present invention, not all examples. All other examples derived by persons of ordinary skill in the art based on the examples of the present invention fall within the scope of protection of the present invention.

[0046] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0047] To facilitate a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the first connecting portion and the second connecting portion are used to distinguish different connecting portions and do not limit their order. Those skilled in the art will understand that the words "first" and "second" do not limit the quantity or position, and the words "first" and "second" do not necessarily mean that they are different.

[0048] It should be noted that, in this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

[0049] 1 and 2 , FIG1 is a schematic structural diagram of an electronic device 10 provided in an embodiment of the present application, and FIG2 is a structural exploded view of an embodiment of the electronic device 10 shown in FIG1 .

[0050] The electronic device 10 includes, but is not limited to, a mobile phone, a tablet computer (i.e., a pad), a virtual reality (VR) device, a laptop computer, a personal computer (PC), an ultra-mobile personal computer (UMPC), a handheld computer, a smart wearable device, a point of sale (POS), and other electronic products with wireless communication capabilities. This embodiment of the present application takes the mobile phone as an example for description of the electronic device 10.

[0051] It should be understood that FIG1 and FIG2 only schematically illustrate some components of the electronic device 10 , and the actual shapes, actual sizes, actual positions and actual structures of these components are not limited by FIG1 and FIG2 .

[0052] As shown in Figures 1 and 2, in an embodiment of the present application, an electronic device 10 includes a display panel 100, a back cover 700, and a middle frame assembly 200. The back cover 700 is arranged opposite to the display panel 100. The middle frame assembly 200 includes a middle plate 210, which is located between the display panel 100 and the back cover 700. A battery compartment 211 is provided on a side of the middle plate 210 close to the back cover 700. The battery compartment 211 is used to accommodate a battery 800. The middle frame assembly 200 also includes a frame 220 arranged around the side of the middle plate 210. The frame 220 includes a top frame 221, a bottom frame 222, and a side frame 223. The top frame 221 and the bottom frame 222 extend along a first direction X, and the side frame 223 extends along a second direction Y. The first direction X is perpendicular to the second direction Y.

[0053] Referring to Figures 3 to 6, Figure 3 is a schematic diagram of the local structure of the electronic device 10 of an embodiment of the present application; Figure 4 is an enlarged schematic diagram of part A in Figure 3; Figure 5 is a top view of the connection between the antenna 500 and the extended area 301 of the electronic device 10 shown in Figure 3; Figure 6 is a schematic diagram of the first electrical connection structure 230 of the electronic device 10 shown in Figure 3.

[0054] As shown in Figures 3 to 6, 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 formed by at least a portion of the side frame 223. A first solder pad area 511 is provided on a surface of the antenna 500 on a side adjacent to the middle plate 210. The first solder pad area 511 is located on one side of the battery compartment 211 in the first direction X. The circuit board 300 includes an extended area 301, which is located between the side frame 223 and the battery compartment 211. The extended area 301 is provided with a grounding point.

[0055] The middle frame assembly 200 also includes a first electrical connection structure 230, which includes a fixed portion 231 and a spring portion 232. The fixed portion 231 is fixedly connected to the first solder pad area 511 of the antenna 500. The spring portion 232 is located on the side of the fixed portion 231 close to the battery compartment 211 and has a gap with the battery compartment 211. The spring portion 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 portion 232 is connected to the fixed portion 231, and the second end 2322 of the spring portion 232 is in contact with the grounding point of the circuit board 300.

[0056] In the embodiment of the present application, the electronic device 10 includes a middle frame assembly 200, which includes a middle plate 210. The middle plate 210 is provided with a battery compartment 211, which can be used to accommodate a battery 800. The middle frame assembly 200 also includes a frame 220, which can form an antenna 500 of the electronic device 10. The electronic device 10 also includes a circuit board 300, which 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 increases along the second direction Y (e.g., the length direction of the electronic device 10), the circuit board 300 can have sufficient space in this direction to arrange the grounding point and feeding point of the antenna 500. In the embodiment of the present application, the middle frame assembly 200 also includes a first electrical connection structure 230, and the first electrical connection structure 230 includes a fixing portion 231 and a spring portion 232. The fixing portion 231 can be fixedly connected to the first pad area 511 of the antenna 500, and the spring portion 232 is located on the side of the fixing portion 231 close to the battery compartment 211. Since the spring portion 232 extends along the second direction Y, that is, in a direction parallel to the side frame 223, the size of the spring portion 232 in the first direction X, that is, perpendicular to the side frame 223, can be smaller. Therefore, when the space between the side frame 223 and the battery compartment 211 is narrow, the spring portion 232 can be accommodated between the side frame 223 and the battery compartment 211. Furthermore, by fixing the first end 2321 of the spring portion 232 to the fixing portion 231, and extending the second end 2322 of the spring portion 232 along the second direction Y so as to contact and connect with the grounding point of the circuit board 300, the size of the connection area between the spring portion 232 and the circuit board 300 in the first direction X can be smaller, thereby making the size of the extended area 301 of the circuit board 300 in the first direction X smaller, thereby avoiding the size compression of the battery compartment 211 in the first direction X caused by the larger size of the extended area 301 in the first direction X, thereby avoiding the reduction of the capacity of the battery 800, and realizing the electrical connection between the antenna 500 and the circuit board 300 without affecting the capacity of the battery 800.

[0057] It should be understood that the directional terms such as "top" and "bottom" used in the embodiments of the present application to describe the electronic device 10 are mainly explained based on the orientation when the user holds the electronic device 10 in his hand. The position toward the top side of the electronic device 10 is referred to as the "top", and the position toward the bottom side of the electronic device 10 is referred to as the "bottom". It does not indicate or imply that the device or element 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 actual application scenarios.

[0058] In an embodiment of the present application, the display panel 100 is used to display images, videos, etc. As shown in FIG2 , the display panel 100 may include a transparent cover plate 110 and a display screen 120. The transparent cover plate 110 and the display screen 120 are stacked and fixedly connected by gluing or other means. The transparent cover plate 110 is mainly used to protect the display screen 120 and prevent dust. The display screen 120 can be a flexible display screen or a rigid display screen. The display screen can be an organic light emitting diode display screen, an active matrix organic light emitting diode display screen or an active matrix organic light emitting diode display screen, a mini light emitting diode display screen, etc.

[0059] The display panel 100 can be set on one side of the middle frame assembly 200 by bonding or other means to achieve the fixation of 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 back cover 700 forms the outer shell of the electronic device 10. The back cover 700 can be fixed on the side of the middle frame assembly 200 opposite to the display panel 100 by bonding, snapping or other means. The back cover 700 is used to protect the internal electronic components of the electronic device 10.

[0060] As shown in FIG2 , the electronic device 10 may further include a battery 800, which is housed in a battery compartment 211. The battery 800 is used to power various electronic components within the electronic device 10, such as the circuit board 300. In the embodiment of the present application, the battery compartment 211 may be located on a side of the midplate 210 near the rear cover 700. In other embodiments of the present application, the battery compartment 211 may be located on a side of the midplate 210 near the display panel 100. This application is not limited to this.

[0061] 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 shown in Figures 2 and 3, on the middle plate 210, the distance 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. Because the extended area 301 of the circuit board 300 is located between the battery compartment 211 and the side frame 223, and there is a gap between the extended area 301 of the circuit board 300 and the battery compartment 211 and the side frame 223, the distance in the first direction X of the extended area 301 of the circuit board 300 is relatively narrow, and it is impossible to electrically connect to the extended area 301 of the circuit board 300 using the electrical connection assembly in the related art.

[0062] Specifically, in related technologies, the electrical connection assembly generally includes a spring and a spring. The spring is fixedly connected to the antenna, one end of the spring abuts against the spring, and the other end is connected to the circuit board. The spring generally includes structures such as a sub-board spring and a break-board spring.

[0063] In the related art, the under-board spring sheet is generally arranged on the side of the circuit board 300 close to the display panel 100, and the height of the under-board spring sheet is generally 6 mm. Due to the lightweight design of the electronic device 10, in the thickness direction of the electronic device 10, the gap between the side of the circuit board 300 close to the display panel 100 and the middle frame assembly 200 is small. If the under-board spring sheet is used, a hole needs to be made in the middle frame assembly 200, which will have an adverse effect on the waterproofness of the electronic device 10. Therefore, the under-board spring sheet cannot be used to electrically connect to the extended area 301 of the circuit board 300.

[0064] In the related art, a breaker spring typically has two pins positioned opposite each other, and two corresponding openings are provided on the circuit board. The pins are soldered into the openings to achieve electrical connection between the breaker spring and the circuit board 300. If a breaker spring is used to electrically connect to the extension region 301, two openings would need to be provided in the extension region 301. This would not only increase the size of the extension region 301 in the first direction X, resulting in a reduction in the size of the battery compartment 211 and a lower capacity of the battery 800, but would also increase the risk of the spring being scratched during assembly. Furthermore, the extremely small width of the openings in the extension region 301 creates a high risk of breakage. Therefore, it is not possible to use a breaker spring to electrically connect to the extension region 301 of the circuit board 300.

[0065] In addition, other spring structures in the related art are not suitable for electrically connecting the antenna 500 and the extended area 301 of the circuit board 300 due to problems such as low strength, complex process, or significant impact on the performance of the antenna 500.

[0066] Different from the spring structure of the related art, as shown in Figures 4 and 5, when the first electrical connection structure 230 in the embodiment of the present application is electrically connected to the extension area 301 of the circuit board 300, since the spring portion 232 extends along the second direction Y, that is, in a direction parallel to the side frame 223, the size of the spring portion 232 in the first direction X can be smaller, and the length dimension of the spring portion 232 in the second direction Y can be longer. By making the length dimension of the spring portion 232 in the second direction Y longer, the height value of the entire spring portion 232 can be lowered to avoid interference with the middle frame assembly 200 in the thickness direction of the electronic device 10, and the spring portion 232 can meet certain elastic force requirements and have greater strength. Furthermore, the size of the spring portion 232 in the first direction X is relatively small, and the spring portion 232 is in contact and connected with the circuit board 300 after extending along the second direction Y. As a result, the contact area between the spring portion 232 and the circuit board 300 in the first direction X can be relatively small, thereby making the size of the extended area 301 of the circuit board 300 relatively small in the first direction X, thereby avoiding affecting the size of the battery compartment 211 and further avoiding reducing the capacity of the battery 800. In addition, since the spring portion 232 is in contact and connected with the circuit board 300, there is no need to set an opening on the extended area 301 of the circuit board 300, thereby avoiding the low strength of the extended area 301 and improving the reliability of the extended area 301. In summary, by using the first electrical connection structure 230 of the embodiment of the present application, the electrical connection between the antenna 500 and the extended area 301 of the circuit board 300 can be achieved without affecting the capacity of the battery 800, and the connection stability is good.

[0067] In the embodiment of the present application, the dimension of the spring portion 232 in the first direction X is less than or equal to 2 mm, and the height of the spring portion 232 in the thickness direction of the electronic device 10 is less than or equal to 0.5 mm.

[0068] In a specific embodiment, the dimension of the spring portion 232 in the first direction X is 1.2 mm, and the height of the spring portion 232 in the thickness direction of the electronic device 10 is 0.35 mm. In actual applications, the dimension of the spring portion 232 is related to the dimension of the electronic device 10. The dimension of the spring portion 232 may vary depending on the dimension of the electronic device 10, and this application does not impose any limitation on this.

[0069] As shown in Figure 6, in the embodiment of the present application, the fixing portion 231 and the elastic portion 232 of the first electrical connection structure 230 can be integrally formed. Since the fixing portion 231 can play the role of the spring 610 in the related art, by integrally forming the fixing portion 231 and the elastic portion 232, the first electrical connection structure 230 is equivalent to integrating the two structural components of the related art, the spring and the elastic. This makes the first electrical connection structure 230 more compact and smaller in size.

[0070] In a specific embodiment, as shown in FIG. 4 , the fixing portion 231 may be a sheet-like structure, and the fixing portion 231 is fixed to the surface of the first pad area 511 of the antenna 500 by welding.

[0071] 7 to 10 , FIG7 is a schematic structural diagram of the antenna 500 of the electronic device 10 shown in FIG3 ; FIG8 is a schematic structural diagram of the circuit board of the electronic device shown in FIG3 ; FIG9 is a schematic connection diagram of the first electrical connection structure 230 of the electronic device 10 shown in FIG3 , the antenna 500, and the extended area 301 ; and FIG10 is a side view of FIG9 .

[0072] As shown in Figures 4 and 7, in the embodiment of the present application, the portion of the antenna 500 provided with the first solder pad area 511 protrudes in a direction close to the midboard 210, forming an extension 510. The first solder pad area 511 is located on a side surface of the extension 510 close to the midboard 210. The provision of the extension 510 not only facilitates the connection between the antenna 500 and the circuit board 300, but also provides a larger clearance area in the portion of the antenna 500 not provided with the extension 510, thereby improving the performance of the antenna 500. It should be noted that the clearance area primarily refers to the blank area surrounding the antenna 500 of the electronic device 10. To ensure that the antenna 500 obtains a large bandwidth, sufficient clearance area must be reserved for the antenna 500.

[0073] As shown in Figures 5 and 8 to 10, 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 portion 232 is located on the side of the circuit board 300 close to the display panel 100 (not shown in the figures). The elastic portion 232 can include a flat sub-portion 2324 and an inclined sub-portion 2326. The surface of the flat sub-portion 2324 on the side away from the battery compartment 211 is connected to the bottom of the fixed 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 a direction close to the top surface 303 of the circuit board 300 and contacts the grounding point. By providing the flat sub-section 2324, the connection with the fixed section 231 is facilitated. By providing the inclined sub-section 2326 and fixing one end of the inclined sub-section 2326 to the flat sub-section 2324, the other end of the inclined sub-section 2326 is made a movable end. Under a certain pressure, the other end of the inclined sub-section 2326, that is, the movable end, can abut against the circuit board 300, thereby realizing the contact connection between the spring section 232 and the grounding point of the circuit board 300, and the stability is relatively high.

[0074] Furthermore, as shown in FIG6 , the second end 2322 of the spring portion 232, that is, the movable end of the inclined sub-portion 2326, is provided with a plating layer 2323. This protects the second end 2322 of the spring portion 232, improving its corrosion resistance and wear resistance, thereby improving the connection reliability between the spring portion 232 and the grounding point. In one specific embodiment, the material of the plating layer 2323 is gold or nickel.

[0075] As shown in Figure 8, 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 first electrical connection structure 230 be connected to the circuit board 300, but the structure of the circuit board 300 is simplified and easy to manufacture.

[0076] Referring to FIG. 11 , FIG. 11 is a schematic structural diagram of the plastic component 240 of the electronic device 10 shown in FIG. 3 .

[0077] As shown in Figures 3 to 5 and Figure 11, in the embodiment of the present application, the middle frame assembly 200 also includes a plastic part 240, which is located between the frame 220 and the middle plate 210. By providing the plastic part 240, the frame 220 and the middle plate 210 can be sealed to prevent water vapor entering from the side of the display panel 100 from entering between the middle plate 210 and the back cover 700 through the gap between the frame 220 and the middle plate 210, thereby protecting electronic components, batteries 800 and other components located between the middle plate 210 and the back cover 700.

[0078] Furthermore, as shown in FIG. 11 , the plastic component 240 is provided with a through hole 243 corresponding to the extension portion 510 of the antenna 500 , so that the extension portion 510 passes through the through hole 243 and is connected to the circuit board 300 .

[0079] As shown in Figures 4, 5, and 11, a receiving groove 241 is provided on the surface of the plastic member 240 on the side facing away from the display panel 100, and the spring portion 232 is received in the receiving groove 241. Providing the receiving groove 241 on the plastic member 240 allows the spring portion 232 to be mounted in the receiving groove 241 and provides a certain amount of support for the spring portion 232 in the thickness direction of the electronic device 10, thereby ensuring a tight contact between the spring portion 232 and the circuit board 300.

[0080] Furthermore, a positioning portion 2411 is provided in the receiving groove 241, and a limiting portion 2325 that cooperates with the positioning portion 2411 is provided on the flat plate sub-portion 2324. Providing the positioning portion 2411 in the receiving groove 241 and providing the limiting portion 2325 that cooperates with the positioning portion 2411 on the flat plate sub-portion 2324 facilitates positioning of the first electrical connection structure 230 by cooperating with the limiting portion 2325 and the positioning portion 2411 during installation. This ensures that, after installation, the fixing portion 231 can be aligned with the first solder pad area 511, and the second end 2322 of the limiting portion 2325 can be aligned with the grounding point of the circuit board 300, thereby improving installation accuracy.

[0081] In a specific embodiment, the positioning portion 2411 is a protrusion arranged on one of the side walls of the accommodating groove 241 in a direction close to the spring portion 232, and the limiting portion 2325 is a groove arranged on the flat sub-portion 2324 and matched with the protrusion structure. Through the cooperation between the protrusion and the groove, the first electrical connection structure 230 can be positioned during installation.

[0082] 12 to 14 , FIG12 is a schematic structural diagram of the electronic device 10 shown in FIG3 with a pressure plate 400 installed; FIG13 is an enlarged schematic diagram of part B in FIG12 ; and FIG14 is a schematic structural diagram of the pressure plate 400 of the electronic device 10 shown in FIG12 .

[0083] As shown in Figures 12 to 14, in the embodiment of the present application, the electronic device 10 further includes a pressing plate 400, which is located on a side of the circuit board 300 facing away from the display panel 100. The pressing plate 400 can secure some electronic components fastened to the circuit board 300, preventing them from falling when the electronic device 10 is shaken.

[0084] Furthermore, as shown in FIG11 , a slot 242 is provided on the plastic member 240. As shown in FIG13 , a latch 410 is provided on a side of the pressure plate 400 near the side frame 223. The latch 410 is inserted into the slot 242 so that the portion of the pressure plate 400 corresponding to the extended region 301 of the circuit board 300 abuts against the side of the circuit board 300 facing away from the spring portion 232. Thus, the pressure plate 400 can apply pressure to the circuit board 300 in the thickness direction of the electronic device 10, causing the circuit board 300 to tightly abut against the first electrical connection structure 230. By providing a buckle 410 on the pressure plate 400 and a slot 242 on the plastic part 240, the positions of the pressure plate 400 and the plastic part 240 can be matched in the thickness direction of the electronic device 10, thereby fixing the first electrical connection structure 230 and the circuit board 300 located between the pressure plate 400 and the plastic part 240, thereby ensuring the connection stability between the circuit board 300 and the first electrical connection structure 230.

[0085] In the embodiment of the present application, as shown in FIG4 , an inductor element 304 is provided on the circuit board 300, and the grounding point is connected to the ground layer of the circuit board 300 via the inductor element 304. Thus, after the antenna 500 is connected to the grounding point via the first electrical connection structure 230, it can be grounded via the inductor element 304, which helps improve the performance of the antenna 500.

[0086] It should be noted that in the related art, the antenna can be directly undergrounded by being connected to the middle plate, but directly undergrounding 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 extending along the second direction Y through the spring portion 232, so that the antenna 500 can be undergrounded through the inductor element 304 set on the circuit board 300, which is beneficial to improving the performance of the antenna 500.

[0087] In the embodiment of the present application, as shown in Figures 3 and 4 , the circuit board 300 further includes a main body region 302, which is located on a side of the battery compartment 211 near the bottom frame 222. A feed point is provided in the main body region 302. A second solder pad region 512 is further provided on a surface of the antenna 500 near the midboard 210. The second solder pad region 512 is spaced apart from the first solder pad region 511 and is located on one side of the main body region 302 in the first direction X. The second solder pad region 512 is electrically connected to the feed point of the circuit board 300 via a second electrical connection structure 600. Thus, the antenna 500 can be electrically connected to a feed source (e.g., a radio frequency module) on the circuit board 300 via the feed point.

[0088] In the embodiment of the present application, as shown in Figure 7, the portion of the antenna 500 provided with the second solder pad area 512 also protrudes in the direction close to the middle plate 210 to form an extension portion 510, and the second solder pad area 512 is located on one side surface of the extension portion 510 close to the middle plate 210.

[0089] Furthermore, as shown in FIG. 4 , 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 .

[0090] Specifically, since the main 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 setting between the main area 302 and the side frame 223 will not affect the size of the battery compartment 211. Therefore, the distance between the main area 302 of the circuit board 300 and the side frame 223 can be larger. Furthermore, considering that the connection between the antenna 500 and the grounding point has a lower requirement for the clearance area, while the connection between the antenna 500 and the feeding point requires a larger clearance area, in an embodiment of the present application, the grounding point is set in the extended 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 solder pad area 512 and the circuit board 300 is greater than the distance between the first solder pad area 511 and the circuit board 300. Thus, while ensuring that the distance between the feeding point and the grounding point in the second direction Y meets the requirement, the connection space between the first solder pad area 511 and the grounding point of the circuit board 300 can be saved, thereby realizing the electrical connection between the antenna 500 and the grounding point of the circuit board 300 in a narrow area, and the clearance area of ​​the second solder pad area 512 can be expanded, thereby improving the performance of the antenna 500.

[0091] In the embodiment of the present application, as shown in FIG4 , the second pad area 512 is electrically connected to the feed point of the circuit board 300 via a second electrical connection structure 600. The second electrical connection structure 600 includes a spring 610 and a board-breaking spring 620. The spring 610 is fixedly connected to the second pad area 512. The board-breaking spring 620 extends along the first direction X. One end of the board-breaking spring 620 abuts against the spring 610, and the other end of the board-breaking spring 620 is fixed to the circuit board 300. Taking into account the large distance between the second solder pad area 512 and the circuit board 300, in the embodiment of the present application, the second electrical connection structure 600 adopts a separately arranged spring 610 and a breaking plate spring 620, wherein one end of the breaking plate spring 620 is in contact with the spring 610, and the other end is extended along the first direction X and fixed to the circuit board 300. As a result, the current emitted from the feed source of the circuit board 300 can directly enter the antenna 500 along the first direction X, and its flow path is a straight line without turning, thereby making the flow path shorter, which is beneficial to improving the performance of the antenna 500.

[0092] As shown in Figure 4, in the second electrical connection structure 600, the spring 610 is an L-shaped structure. The spring 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 breaker spring 620 abuts against the horizontal portion of the spring 610, and the other end is provided with two straight-insert solder pins 621.

[0093] As shown in FIG8 , an opening 3021 is provided at the feeding point of the circuit board 300 , and the straight-insertion solder pin 621 of the board-breaking spring piece 620 is soldered in the opening 3021 , thereby enabling electrical connection between the antenna 500 and the feeding point to be achieved through the second electrical connection structure 600 .

[0094] In an embodiment of the present application, as shown in FIG1 , 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 either side of the battery compartment 211 along the second direction Y. The main board 310 is located on a side of the battery compartment 211 near 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 a side of the battery compartment 211 near the bottom frame 222 . The sub-board 320 can be used to integrate electronic components such as the antenna 500 RF front end and a universal serial bus device. The main board 310 and the sub-board 320 can be electrically connected via a flexible circuit board or wires.

[0095] In the embodiment of the present application, a portion of the sub-board 320 extends between the side frame 223 and the battery compartment 211 to form an extended region 301. The portion of the sub-board 320 other than the extended region 301 is the main region 302, and the grounding point and the feeding point are both provided on the sub-board 320. Considering that components such as an inductor are typically integrated on the sub-board 320, by extending a portion of the sub-board 320 between the side frame 223 and the battery compartment 211 to form the extended region 301, and locating the grounding point on the sub-board 320, it is convenient to achieve electrical connection between the grounding point and the inductor element 304. Thus, after the antenna 500 is electrically connected to the grounding point, the inductor can be grounded, which is beneficial for improving the performance of the antenna 500.

[0096] In other embodiments of the present application, depending on the specific internal structural design of the electronic device 10, a portion of the mainboard 310 may be extended between the side frame 223 and the battery compartment 211 to form an extended region 301, with the portion of the mainboard 310 excluding the extended region 301 being the main body region 302. Grounding points and feed points may be provided on the mainboard 310, thereby making the internal structural layout of the electronic device 10 more rational and facilitating improvements to existing electronic devices. This application does not impose any restrictions on this.

[0097] Referring to FIG. 15 , FIG. 15 is a schematic diagram showing the arrangement of another embodiment of the electronic device 10 shown in FIG. 1 .

[0098] As shown in FIG15 , in the second embodiment of the present application, unlike the first embodiment, in addition to the main board 310 and the sub-board 320, the circuit board 300 may also include an additional independent small board 330. The independent small board 330 is located between the battery compartment 211 and the side frame 223. The independent small board 330 is used to form the extension area 301, and the grounding point can be set on the independent small board 330. The sub-board 320 or the main board 310 can form the main area 302, and the feeding point is set on the sub-board 320 or the main board 310. As a result, the main board 310 and the sub-board 320 can use existing products, which facilitates configuration.

[0099] It should be noted that in the examples and description of this patent, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0100] Although the present application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application.

Claims

1. An electronic device, characterized in that: include: Display panel; A back cover, arranged opposite to the display panel; A middle frame assembly, comprising a middle plate, located between the display panel and the back cover, wherein a battery compartment is provided on a side of the middle plate close to the back cover or close to the display panel, and the battery compartment is used to accommodate a battery; the middle frame assembly further comprises a frame arranged around the circumference of the middle plate; the frame comprises a top frame, a bottom frame and a side frame, the top frame and the bottom frame extend along a first direction, the side frame extends along a second direction, and the first direction is perpendicular to the second direction; An antenna, at least composed of a partial area of ​​the side frame, a first solder pad area is provided on a surface of one side of the antenna close to the middle plate, and the first solder pad area is located on one side of the battery compartment in the first direction; A circuit board, comprising 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 also includes a first electrical connection structure, which includes a fixed portion and a spring portion, the fixed portion is fixedly connected to the first solder pad area of ​​the antenna, the spring portion is located on a side of the fixed portion close to the battery compartment and has a gap with the battery compartment, the spring portion extends along the second direction and has a first end and a second end in the second direction, the first end of the spring portion is connected to the fixed portion, and the second end of the spring portion is in contact with the grounding point of the circuit board.

2. The electronic device according to claim 1, characterized in that: The fixing portion and the elastic sheet portion are integrally formed.

3. The electronic device according to claim 1, characterized in that: A side of the circuit board close to the display panel is a top surface, and the grounding point is located on the top surface of the circuit board; The spring piece portion is located on a side of the circuit board close to the display panel, and the spring piece portion includes a flat sub-portion and an inclined sub-portion. A surface of the flat sub-portion on a side away from the battery compartment is connected to the fixed 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 is in contact 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 elastic sheet portion is received in the receiving groove.

5. The electronic device according to claim 4, characterized in that: A positioning portion is arranged in the receiving groove, and a limiting portion matched with the positioning portion is arranged on the flat plate sub-portion.

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

7. The electronic device according to claim 1, characterized in that: The second end of the spring portion is provided with a plating layer.

8. The electronic device according to claim 1, characterized in that: A copper leakage area is arranged 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 inductor element is arranged on the circuit board, and the grounding point is connected to the grounding layer of the circuit board through the inductor element.

10. The electronic device according to claim 1, characterized in that: The circuit board also includes a main body area, which is located on a 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 solder pad area is also provided on the surface of the antenna close to the middle plate, and the second solder pad area is spaced apart from the first solder pad area. The second solder pad area is located on one side of the main body area in the first direction, and the second solder 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, a distance between the second pad region and the main body region is greater than a distance between the first pad region and the extension region.

12. The electronic device according to claim 10, characterized in that: The portion 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 extension portion, and the first pad area and the second pad area are located on a side surface of the extension portion close to the middle plate.

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

14. The electronic device according to claim 1, characterized in that: The circuit board comprises a main board and a sub-board, and the main board and the sub-board are respectively located on two sides of the battery compartment along the second direction; A portion of the sub-plate extends between the side frame and the battery compartment to form the extension area; Alternatively, a portion of the mainboard extends between the side frame and the battery compartment to form the extended area; Alternatively, the circuit board further includes an independent small plate, wherein the independent small plate is located between the battery compartment and the side frame, and the independent small plate is used to constitute the extended area.

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