Circuit board and terminal equipment

Abstract

The embodiment of the invention relates to the technical field of circuit board structures, and provides a circuit board and terminal equipment, and the circuit board comprises a board main body and a pressing assembly. The board main body comprises a first mounting surface and a second mounting surface, and the first mounting surface is provided with a connecting position for connecting the flexible circuit board; the pressing assembly is used for pressing the flexible circuit board and the connecting position. The pressing assembly comprises a buckling piece and a pressing piece, wherein the buckling piece is arranged on the second mounting face and bends and extends to the first mounting face from the edge side of the board body, one end of the pressing piece is connected to the first mounting face, and the other end of the pressing piece is clamped to the buckling piece. Thus, the installation mode of the buckling piece on the board main body does not occupy the installation space of the first installation face of the board main body, convenience is provided for layout of all electronic components, and the space utilization rate of the first installation face of the board main body is improved.

Description

Technical Field

[0001] The present application relates to the technical field of circuit boards, and particularly to a circuit board and a terminal device. Background Art

[0002] A circuit board is used to carry electronic components. For example, the circuit boards of mobile phones, tablet computers, and computers usually include a main circuit board and a secondary circuit board, which are electrically connected through an FPC (Flexible Printed Circuit Board). Therefore, connection positions for connecting with the FPC are provided on both the main circuit board and the secondary circuit board, and the connection positions are board-to-board (BTB) connectors.

[0003] Meanwhile, in order to improve the connection stability between the FPC and the connection positions on the circuit board, corresponding buckle structures are usually added to squeeze and fix the FPC and the connection positions.

[0004] Generally, such a buckle structure includes a buckle seat provided on the main circuit board and a BTB pressing bracket for squeezing the FPC and the connection positions. However, the above-mentioned buckle structure easily compresses the space of the main circuit board, resulting in a low space utilization rate of the main circuit board. Summary of the Invention

[0005] Embodiments of the present application provide a circuit board and a terminal device, which can solve the technical problem of low space utilization rate of the circuit board.

[0006] To achieve the above object, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, the present application provides a circuit board, including a board body and a pressing assembly;

[0008] The board body includes a first mounting surface and a second mounting surface arranged opposite to the first mounting surface, and a connection position for connecting a flexible circuit board is provided on the first mounting surface.

[0009] The board body is used to carry electronic components. The first mounting surface and the second mounting surface are end faces of the board body, and the first mounting surface and the second mounting surface are arranged opposite to each other. Among them, the first mounting surface is the end face mainly for installing electronic components. For example, the connection position connected to the flexible circuit board is provided on the first mounting surface, and electronic components may not be installed on the second mounting surface. In the actual use process, the second mounting surface of the board body can be directly in contact with the shell of the terminal device. At this time, only one end face of the board body is available for installing electronic components.

[0010] The pressing assembly is used to press the flexible circuit board and the connection position. The pressing assembly includes a buckle member disposed on the second mounting surface and bent and extended to the first mounting surface along the edge side of the board body, and a pressing member with one end connected to the first mounting surface and the other end clamped to the buckle member.

[0011] In order to reduce the probability of the connection terminals of the flexible circuit board being separated from the connection position, the pressing assembly needs to press the connection terminals of the flexible circuit board, that is, provide a force for the connection terminals to be inserted into the connection position. Specifically, the pressing assembly includes a pressing member and a buckle member. The pressing member is used to squeeze the connection terminals of the flexible circuit board, and the buckle member is detachably connected to the pressing member to maintain the squeezing force of the pressing member on the flexible circuit board.

[0012] In the technical solution described above in the embodiments of the present application, at least the following technical effects or advantages are achieved:

[0013] For the circuit board provided in the embodiments of the present application, the buckle member of the pressing assembly is arranged on the second mounting surface, and is bent along the edge side of the board body to one side of the first mounting surface of the board body for the pressing member to be clamped. In this way, the installation method of the buckle member on the board body does not occupy the installation space of the first mounting surface of the board body, providing convenience for the layout of each electronic component and improving the space utilization rate of the first mounting surface of the board body.

[0014] In some embodiments, the buckle member includes a main body portion connected to the second mounting surface, a clamping portion for the pressing member to be clamped, and a bending portion connecting the main body portion and the clamping portion.

[0015] It can be understood that the buckle member should be a bent member. Its main body portion is arranged on the second mounting surface of the board body and extends to one side of the first mounting surface of the board body after being bent. Specifically, the buckle member includes at least three parts, namely, a main body portion connected to the second mounting surface, a clamping portion for the pressing member to be clamped and connected, and a bending portion connecting the main body portion and the clamping portion. The bending portion is located on the edge side of the board body, and the clamping portion extends into the first mounting surface to facilitate the pressing member on the same side to be clamped. In this way, the whole buckle member does not occupy the installation space of the first mounting surface of the board body, so as to improve the space utilization rate of the first mounting surface.

[0016] In some embodiments, pins are provided on the main body portion, and mounting holes for the pins are formed on the board body.

[0017] It can be understood that adding pins on the main body portion can further improve the connection stability between the buckle member and the board body. Here, the number and setting position of the pins can be adjusted according to actual use requirements.

[0018] Moreover, after the pins are arranged in the mounting holes, they can be fixedly connected by welding, gluing, etc.

[0019] In some embodiments, the number of pins is two. The main body has a first side and a second side which are oppositely arranged, and a third side connecting the first side and the second side. One pin is disposed on the first side, and the other pin is disposed on the second side. The third side is connected to the bending portion.

[0020] It can be understood that the first side and the second side are the oppositely arranged side portions of the main body. By respectively disposing the two pins on the first side and the second side, corresponding positioning and fixing effects can be achieved.

[0021] Moreover, the third side of the main body is used to be connected to the bending portion. Then, the position where the mounting hole on the board main body is set is closer to the edge side of the board main body, so that the pins disposed on the first side and the second side can occupy less mounting area of the board main body. Therefore, while improving the connection stability between the buckle and the board main body, the mounting space on the first mounting surface of the board main body can be further reserved.

[0022] In some embodiments, the distances from the two pins to the bending portion are different.

[0023] It can be understood that the two pins are arranged with different front and rear positions in the extending direction of the buckle. In this way, a corresponding anti-misassembly effect can be achieved when the buckle is installed on the board main body, and moreover, the connection stability between the main body and the board main body can be further improved.

[0024] In some embodiments, the projection of the clamping portion in the thickness direction of the board main body does not coincide with the board main body.

[0025] It can be understood that when the projection of the clamping portion in the thickness direction of the board main body does not coincide with the board main body, the clamping portion does not extend directly above the board main body. Then, in terms of space, the electronic components on the board main body do not interfere with the clamping portion, which is convenient for the rational layout of the electronic components on the board main body.

[0026] In some embodiments, the projection of the clamping portion in the thickness direction of the board main body coincides with at least part of the board main body.

[0027] It can be understood that in this embodiment, the electronic components on the board main body will have partial interference with the clamping portion. In this way, the design size of the pressing member can be relatively shorter, and at the same time, the spanning range of the pressing member can also be reduced.

[0028] In some embodiments, the clamping portion has a first contact surface; the pressing member has a second contact surface, and the first contact surface and the second contact surface are in contact connection.

[0029] It can be understood that the clamping position of the clamping part and the pressing part is located at the position where the first contact surface and the second contact surface are in contact, that is, the clamping point of the clamping part and the pressing part is surface contact, and the clamping contact area between the two is larger to improve the connection stability between the clamping part and the pressing part.

[0030] In some embodiments, an insulating layer is disposed on the first contact surface; or, an insulating layer is disposed on the second contact surface; or, an insulating layer is disposed on both the first contact surface and the second contact surface.

[0031] It can be understood that the contact surface between the clamping portion and the pressing piece is insulated to provide insulation protection for the flexible printed circuit board and the connection position.

[0032] The insulating layer can be disposed on the corresponding contact surface by spraying, bonding or plugging.

[0033] In some embodiments, the clamping portion has a fourth side and a fifth side arranged opposite to each other and a sixth side connecting the fourth side and the fifth side, a blocking portion is provided on at least one of the fourth side and the fifth side, and the sixth side is connected to the bending portion.

[0034] It can be understood that the fourth side and the fifth side are side portions that are arranged opposite to the clamping portion, and two enclosing portions are respectively arranged on the fourth side and the fifth side. The two enclosing portions are used to limit the pressing part to reduce the risk of the pressing part escaping from the clamping part. For example, the enclosing portion can be arranged on the third side; or, the enclosing portion can be arranged on the fourth side; or, the enclosing portion can be arranged on both the third side and the fourth side.

[0035] And, the sixth side of the clamping portion is used to connect with the bending portion, then, the pressing piece extends from the sixth side away from the clamping portion into the clamping space enclosed by the clamping portion and the surrounding portion.

[0036] In a second aspect, the present application also provides a terminal device, including a middle frame and the above-mentioned circuit board, wherein the middle frame is arranged around the circuit board.

[0037] The terminal device can be a mobile phone, tablet computer, laptop computer, handheld calculator, wearable electronic device, smart watch, etc.

[0038] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0039] The terminal device provided in the embodiment of the present application, on the basis of having the above-mentioned circuit board, can have a more reasonable layout of electronic components in the terminal device of the present application, and can have a higher space utilization rate for the circuit board.

[0040] In some embodiments, a stepped structure is formed on the inner wall of the middle frame, a notch for avoiding the stepped structure is formed on the edge side of the board body of the circuit board, a through hole is formed in the buckle of the pressing assembly of the circuit board, and the stepped structure penetrates into the through hole and is clamped to the buckle.

[0041] It can be understood that when the circuit board is assembled with the middle frame, the notch on the circuit board is adapted to the stepped structure of the middle frame, and the stepped structure extends into the through hole of the buckle of the pressing assembly. Finally, the buckle is clamped to the stepped structure to pre-fix the circuit board to the frame body. Especially when the circuit board is flipped, the stepped structure and the buckle are clamped to prevent the circuit board from falling. Description of the Drawings

[0042] Figure 1 Structural schematic diagram of the terminal device provided by the embodiment of the present application;

[0043] Figure 2 Exploded view of the terminal device provided by the embodiment of the present application;

[0044] Figure 3 Structural schematic diagram of the circuit board and the middle frame provided by the embodiment of the present application;

[0045] Figure 4 Structural schematic diagram of the board body and the pressing assembly of the circuit board provided by the embodiment of the present application;

[0046] Figure 5 Structural schematic diagram of the pressing piece of the pressing assembly of the circuit board provided by the embodiment of the present application;

[0047] Figure 6 Structural schematic diagram of the buckle of the pressing assembly of the circuit board provided by the embodiment of the present application;

[0048] Figure 7 Another perspective structural schematic diagram of the buckle of the pressing assembly of the circuit board provided by the embodiment of the present application;

[0049] Figure 8 Cross-sectional view of the circuit board and the middle frame provided by the embodiment of the present application.

[0050] Among them, the reference numerals in the figures:

[0051] 1000, terminal device;

[0052] 200, housing; 201, middle frame; 202, rear cover; 203, opening; 204, stepped structure;

[0053] 300, display screen;

[0054] 400, battery;

[0055] 500, Camera module; 501, Front camera; 502, Rear camera;

[0056] 100, Circuit board;

[0057] 10, Board body; 10a, First mounting surface; 10b, Second mounting surface; 10c, Mounting hole; 10d, Notch;

[0058] 20, Pressing assembly; 21, Buckling part; 22, Pressing part; 211, Main body part; 212, Clamping part; 213, Bending part; 224, Pin; 211a, First side; 211b, Second side; 211c, Third side; 21a, First contact surface; 22a, Second contact surface; 212a, Fourth side; 212b, Fifth side; 212c, Sixth side; 225, Enclosure part; 226, Through hole. Detailed implementation manner

[0059] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation of the present application.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0061] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0062] The terms "first", "second", "third", "fourth", "fifth", "sixth", etc. are only used for differential description and shall not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. For example, the first deformation space and the second deformation space are only for differentiating different deformation spaces, and no limitation is imposed on their sequence. The first deformation space may also be named the second deformation space, and the second deformation space may also be named the first deformation space, without departing from the scope of the described embodiments. Also, the terms "first", "second", etc. do not limit that the indicated features must be different.

[0063] In this application, unless otherwise clearly specified and limited, the terms "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] In this application, "and / or" is merely a correlative relationship describing related objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally represents an "or" relationship between the related objects before and after.

[0065] It should be noted that in this application, words such as "in some embodiments", "exemplarily", and "for example" are used to give examples, illustrations, or explanations. Any embodiment or design solution described as "in some embodiments", "exemplarily", or "for example" in this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "in some embodiments", "exemplarily", and "for example" is intended to present relevant concepts in a specific manner.

[0066] In order to make the objectives, technical solutions, and advantages of this application clearer, the following further elaborates on this application in conjunction with the accompanying drawings and embodiments.

[0067] A circuit board is used to carry electronic components. For example, the circuit boards of mobile phones, tablet computers, and computers generally include a main circuit board and a secondary circuit board, and the main circuit board and the secondary circuit board are electrically connected through an FPC. Therefore, connection positions for connecting to the FPC are provided on both the main circuit board and the secondary circuit board, and this connection position is a board-to-board (BTB) connector.

[0068] Meanwhile, in order to improve the connection stability between the FPC and the connection position on the circuit board, a corresponding buckle structure is usually added to squeeze and fix the FPC and the connection position.

[0069] The buckle structure includes a buckle seat arranged on the main circuit board and a BTB pressing bracket for squeezing the FPC and the connection position. However, when the buckle structure is installed, the buckle seat needs to be arranged on the same side of the main circuit board where there are electronic components. Then, the buckle seat needs to occupy a part of the installation space of the circuit board, thus affecting the utilization rate of the installation space of the main circuit board.

[0070] In view of this, the present application provides a circuit board, in which a buckle of a pressing component is arranged on the second installation surface of the board body. Compared with the first installation surface, electronic components are usually not installed on the second installation surface. Therefore, arranging the buckle on the second installation surface will not occupy the installation space of the electronic components. At the same time, the buckle is bent and extended to the first installation surface at the edge side of the board body to meet the requirement of being clamped with the pressing component. In this way, the buckle of the pressing component realizes being clamped with the pressing component without occupying the installation space of the board body, which can effectively increase the space utilization rate of the board body, and the layout of the electronic components on the first installation surface can be more reasonable.

[0071] The terminal device 1000 to which the circuit board involved in the embodiment of the present application can be applied may include a handheld device, a vehicle-mounted device, a wearable device, a computing device, or other processing devices connected to a wireless modem. It may also include a cellular phone, a smart phone, a personal digital assistant (PDA) computer, a tablet computer, a laptop computer, a machine type communication (MTC) terminal, a point of sales (POS), a vehicle-mounted computer, and other terminal devices 1000 with imaging functions.

[0072] The embodiment of the present application does not make any special restrictions on the specific form of the above terminal device 1000. For the convenience of description and understanding below, the terminal device 1000 is taken as an example of a mobile phone for illustration.

[0073] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic structural diagram of a terminal device provided by an embodiment of the present application, Figure 2 which is an exploded structural diagram of a terminal device provided by an embodiment of the present application. Refer to Figure 1 and Figure 2As shown in the figure, the terminal device 1000 provided by the embodiments of the present application may include a housing 200, a display screen 300, a circuit board 100, and a battery 400.

[0074] Among them, the housing 200 can provide a structural framework for the terminal device. Specifically, the housing 200 includes a middle frame 201 and a rear cover 202. The middle frame 201, the circuit board 100, and the battery 400 are arranged between the display screen 300 and the rear cover 202. Among them, the circuit board 100 and the battery 400 can be arranged on the middle frame 201. For example, the circuit board 100 and the battery 400 are arranged on one side of the middle frame 201 facing the rear cover 202, or the circuit board 100 and the battery 400 can be arranged on one side of the middle frame 201 facing the display screen 300.

[0075] It can be understood that the housing 200 of the terminal device provided by the present application includes but is not limited to the above structure. For example, in some other embodiments, the housing 200 can be an integral or split housing 200 made of metal or plastic, etc. In the embodiments of the present application, the housing 200 is specifically described by taking the structure composed of the middle frame 201 and the rear cover 202 as an example.

[0076] Among them, the battery 400 can be electrically connected to the circuit board 100 to supply power to the processor, internal memory, external memory, display screen 300, camera module 500, communication module, etc.

[0077] The display screen 300 can be an Organic Light-Emitting Diode (OLED) display screen 300 or a Liquid Crystal Display (LCD) display screen 300.

[0078] The rear cover 202 can be a metal rear cover 202, a glass rear cover 202, a plastic rear cover 202, or a ceramic rear cover 202. In the embodiments of the present application, the material of the rear cover 202 is not limited.

[0079] The middle frame 201 can include a middle plate and a frame. The frame is arranged around the outer periphery of the middle plate for one week. Generally, the frame can include a top frame, a bottom frame, a left frame, and a right frame. The top frame, the bottom frame, the left frame, and the right frame enclose a frame with a square ring structure. Among them, the middle plate can be an aluminum plate, aluminum alloy, or magnesium alloy. The frame can be a metal frame or a ceramic frame. Among them, the metal middle plate and the frame can be snap-connected, welded, bonded, or integrally formed, or the metal middle plate and the frame are fixedly connected by injection molding.

[0080] It should be noted that in some other embodiments, the terminal device 1000 may include but is not limited to Figure 1 andFigure 2 In the structure shown, the rear cover 202 can be connected to the frame to form an integrally molded housing. For example, the terminal device may include: a display screen 300, a metal middle plate, and a housing 200. The housing 200 may be formed by integrally molding the frame and the rear cover 202. In this way, the circuit board 100 and the battery 400 are located in the space surrounded by the metal middle plate and the housing 200.

[0081] In the embodiments of the present application, in order to implement the shooting function, the terminal device further includes: at least one camera module 500 and a flash (not shown in the figure). Among them, the camera module 500 may be a front camera 501, a rear camera 502, etc. The number of the front camera 501 and the rear camera 502 may be one or multiple. Exemplarily, as Figure 2 shown, in the terminal device provided in the present application, the camera module 500 includes a front camera 501 and a rear camera 502.

[0082] Among them, the rear cover 202 is provided with openings for installing a part of the flash and the rear camera 502. The front camera 501 may be disposed on one side of the middle plate facing the display screen 300. In the embodiments of the present application, the installation positions of the front camera 501 and the rear camera 502 include but are not limited to the above description. Among them, in some embodiments, the sum of the number of the front camera 501 and the rear camera 502 provided in the terminal device may be 1 or N, where N is a positive integer greater than 1.

[0083] It can be understood that the structure illustrated in the embodiments of the present application does not constitute a specific limitation on the terminal device. In other embodiments of the present application, the terminal device may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0084] Among them, the camera module 500 may include a lens, a filter, a bracket, a photosensitive element, a flexible board, and a connector, etc.

[0085] It should be noted that the camera module 500 may be a camera module 500 with a fixed focal length or a camera module 500 with a variable focal length. When the camera module 500 is a camera module 500 with a variable focal length, the camera module 500 may further include a focusing module (not shown in the figure), such as a focusing motor. The focusing motor may be provided on the bracket of the camera module 500.

[0086] In the embodiments of the present application, the filter can be set according to functional requirements. For example, the filter can be an infrared cut filter (IRCF), which can filter out infrared light to prevent infrared light from entering the lens and affecting imaging.

[0087] The photosensitive element can be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The connector is used to electrically connect the flexible board to the image signal processing (ISP) unit on the circuit board 100, and the image signal processing (ISP) unit is electrically connected to the digital signal processing (DSP) unit. Among them, the image signal processing (ISP) unit and the digital signal processing (DSP) unit can be separately provided on the circuit board 100, or the image signal processing (ISP) unit and the digital signal processing (DSP) unit can be integrated and provided on the circuit board 100.

[0088] When taking a photo, the shutter is opened, and the light passes through the lens and the filter and is transmitted to the photosensitive element, where the optical signal is converted into an electrical signal. The photosensitive element transmits the electrical signal to the image signal processing (ISP) unit through the flexible board and the connector for processing. The image signal processing (ISP) unit converts the electrical signal into a digital image signal and outputs the digital image signal to the digital signal processing (DSP) unit for processing. The digital signal processing (DSP) unit converts the digital signal into an image signal in a standard format such as RGB or YUV.

[0089] Please refer to Figure 3 and Figure 4 , the embodiments of the present application further provide a circuit board 100, including a board body 10 and a pressing component 20.

[0090] The board body 10 is used to carry electronic components. According to actual usage requirements, the board main body can be classified into a main board part and a sub-board part. At the same time, the main board part and the sub-board part are electrically connected through an FPC.

[0091] The board body 10 includes a first mounting surface 10a and a second mounting surface 10b disposed opposite to the first mounting surface 10a, and the first mounting surface 10a is provided with a connection position for connecting the flexible circuit board 100.

[0092] The first mounting surface 10a and the second mounting surface 10b are end faces of the board body 10, and the first mounting surface 10a and the second mounting surface 10b are arranged facing away from each other. Among them, the first mounting surface 10a is the end face mainly for mounting electronic components. For example, the BTB connection position connected to the flexible circuit board 100 is set on the first mounting surface 10a, while the second mounting surface 10b of the board body 10 can choose not to mount electronic components. In the actual use process, the second mounting surface 10b of the board body 10 can be directly in contact with the housing 200 of the terminal device. At this time, only one end face of the board body 10 is available for mounting electronic components.

[0093] The pressing component 20 is used to press the flexible circuit board 100 and the BTB connection position. The pressing component 20 includes a buckle member 21 provided on the second mounting surface 10b and bent and extended to the first mounting surface 10a along the edge side of the board body 10, and a pressing member 22 with one end connected to the first mounting surface 10a and the other end clamped to the buckle member 21.

[0094] It can be understood that in order to reduce the probability of the connection terminals of the flexible circuit board 100 being separated from the connection positions, the pressing component 20 needs to press the connection terminals of the flexible circuit board 100, that is, provide a force for the connection terminals to be inserted into the BTB connection positions. Specifically, the pressing component 20 includes a pressing member 22 and a buckle member 21. The pressing member 22 is used to squeeze the connection terminals of the flexible circuit board 100, and the buckle member 21 is detachably connected to the pressing member 22 to maintain the squeezing force of the pressing member 22 on the flexible circuit board 100.

[0095] Here, the pressing member 22 is usually a metal part, and the connection terminals are pressed by using the deformability of the metal material. The connection method between the pressing member 22 and the board body 10 includes but is not limited to threaded connection, plugging, clamping, welding, etc. Of course, the pressing member 22 can also be made of other materials, such as plastic, ceramic, etc.

[0096] The buckle member 21 is a structural member adapted to the pressing member 22. It can be understood that the pressing member 22 exerts a pressing force on the connection terminals of the flexible circuit board 100 in the direction towards the board body 10. Then, the pressing member 22 exerts a pulling force on the buckle member 21 in the direction away from the board body 10.

[0097] The buckle member 21 protrudes outward from the second mounting surface 10b of the board body 10, and after being bent at the edge part of the board body 10, extends towards the first mounting surface 10a. Therefore, the overall structure of the buckle member 21 is a bent part. At the same time, the reliability of the buckle member 21 in the bent state combined with the board body 10 is higher, and it can provide a higher locking force for the pressing member 22.

[0098] Here, the number of bends of the buckle member 21 and the height or distance extending toward the first mounting surface 10a can be adjusted according to actual usage requirements.

[0099] Exemplarily, after the buckle member 21 is bent twice, it extends toward the first mounting surface 10a. And in the thickness direction of the board body 10, the projection of the extending portion of the buckle member 21 toward the first mounting surface 10a does not coincide with the board body 10. Then, the whole buckle member 21 does not occupy the mounting space of the first mounting surface 10a of the board body 10, thus being more conducive to the reasonable distribution of various electronic components on the first mounting surface 10a of the board body 10.

[0100] Of course, in other examples, the projection of the extending portion of the buckle member 21 toward the first mounting surface 10a may coincide with the board body 10, that is, a part of the buckle member 21 will occupy the mounting space of the first mounting surface 10a of the board body 10. In this way, the overall structure of the buckle member 21 will be more compact, and the distance between the clamping point of the buckle member 21 and the pressing member 22 and the connection point of the buckle member 21 and the board body 10 is smaller. Thus, the buckle member 21 can bear a greater acting force of the pressing member, making the connection reliability of the buckle member 21 on the board body 10 higher. At the same time, the buckle member 21 extends upward toward the first mounting surface 10a, which can also shorten the length of the pressing member 22 and, to a certain extent, improve the pressing and locking force of the pressing member 22 on the connection terminal.

[0101] In the circuit board 100 provided by the embodiment of the present application, the buckle member 21 of the pressing assembly 20 is arranged on the second mounting surface 10b and is bent to the side of the first mounting surface 10a of the board body 10 through the edge side of the board body 10 for the pressing member 22 to be clamped. In this way, the installation method of the buckle member 21 on the board body 10 does not occupy the mounting space of the first mounting surface 10a of the board body 10, providing convenience for the layout of various electronic components to improve the space utilization rate of the first mounting surface 10a of the board body 10.

[0102] Please refer to Figures 4 to 6 , in some embodiments, the buckle member 21 includes a main body portion 211 connected to the second mounting surface 10b, a clamping portion 212 for the pressing member 22 to be clamped, and a bending portion 213 connecting the main body portion 211 and the clamping portion 212.

[0103] It can be understood that the main body portion 211 is the part where the buckle member 21 is connected to the board body 10. The connection method between the main body portion 211 and the second mounting surface 10b of the board body 10 includes but is not limited to threaded connection, plug connection, clamping connection, welding, and bonding, etc.

[0104] The clamping portion 212 is the part where the buckle member 21 is clamped and cooperated with the pressing member 22.

[0105] The bending portion 213 plays a corresponding connecting role, and the bending portion 213 is located at the edge side of the plate body 10 , and the bending times of the bending portion 213 can be adjusted according to actual structural strength requirements and elasticity requirements.

[0106] The main body 211 , the clamping portion 212 and the bending portion 213 may be manufactured by an integral molding process, or may be connected by other connection methods, such as welding, riveting, threaded connection, etc.

[0107] In summary, the clip 21 should be a bent part, and its main body 211 is arranged on the second mounting surface 10b of the board body 10, and after being bent, it extends to one side of the first mounting surface 10a of the board body 10. Specifically, the clip 21 includes at least three parts, namely, the main body 211 connected to the second mounting surface 10b, the clamping part 212 for the clamping part 22 to be clamped and connected, and the bent part 213 connecting the main body 211 and the clamping part 212, the bent part 213 is located on the edge side of the board body 10, and the clamping part 212 extends into the first mounting surface 10a, so as to facilitate the clamping of the clamp 22 on the same side. In this way, the clip 21 as a whole does not occupy the installation space of the first mounting surface 10a of the board body 10, so as to improve the space utilization rate of the first mounting surface 10a.

[0108] Please refer to Figure 4 and Figure 6 In some embodiments, the main body 211 is provided with pins 224 , and the board body 10 is provided with mounting holes for the pins 224 .

[0109] Here, the location and number of the pins 224 are not limited, and the mounting holes on the board body 10 should be compatible with the pins 224 during installation.

[0110] For example, the number of pins 224 is two, and the two pins 224 are located on opposite sides of the main body 211. At the same time, the number of mounting holes on the board body 10 is also two, and the two mounting holes are arranged close to the edge of the board body 10. In this way, the installation position of the pins 224 on the board body 10 has less impact on the installation space of each electronic component on the first mounting surface 10a.

[0111] For another example, the number of pins 224 is three, and two of the pins 224 are located on opposite sides of the main body 211, and the other pin 224 is located on the side of the main body 211 away from the bending portion 213. At the same time, the number of mounting holes on the board body 10 is also three, and each mounting hole will occupy a certain mounting area of ​​the first mounting surface 10a of the board body 10. However, the method of providing three pins 224 can further improve the connection stability between the main body 211 and the board body 10.

[0112] Thus, adding the pins 224 to the main body 211 can further improve the connection stability between the buckle 21 and the board main body 10. Here, the number and the setting positions of the pins 224 can be adjusted according to the actual usage requirements.

[0113] Moreover, after the pins 224 are arranged in the mounting holes, they can be fixedly connected by means such as welding and glue injection.

[0114] Please refer to Figure 4 and Figure 6 , in some embodiments, the number of the pins 224 is two. The main body 211 has a first side 211a and a second side 211b which are oppositely arranged, and a third side 211c connecting the first side 211a and the second side 211b. One of the pins 224 is arranged on the first side 211a, and the other pin 224 is arranged on the second side 211b. The third side 211c is connected to the bending part 213.

[0115] It can be understood that the main body 211 is of a square structure or a structure similar to a square. Therefore, the main body 211 has four side parts, and the four side parts are in pairs of opposites; two oppositely arranged side parts are respectively defined as the first side 211a and the second side 211b, and the side part connected to the bending part 213 is defined as the third side 211c.

[0116] Thus, arranging the two pins 224 on the first side 211a and the second side 211b respectively can play corresponding positioning and fixing roles.

[0117] Moreover, since the third side 211c of the main body 211 is used to be connected to the bending part 213, the setting position of the mounting hole on the board main body 10 is closer to the edge side of the board main body 10, so that the pins 224 arranged on the first side 211a and the second side 211b can occupy less mounting area of the board main body 10. Therefore, while improving the connection stability between the buckle 21 and the board main body 10, the mounting space on the first mounting surface 10a of the board main body 10 can be further reserved.

[0118] Please refer to Figure 6 , in some embodiments, the distances from the two pins 224 to the bending part 213 are different.

[0119] It can be understood that the shape structures of the two pins 224 should be the same. The minimum distance from the same part of the two pins 224 to the same place of the bending part 213 is used to judge the setting positions of the two pins 224 on the main body 211.

[0120] Exemplarily, the ends of the two pins 224 away from the main body 211 are used as the starting positions. In this way, the minimum distances from the ends of the two pins 224 to the surface of the bending part 213 are different. Thus, the installation positions of the two pins 224 on the main body 211 have a front-back positional relationship relative to the bending part 213.

[0121] In this way, the two pins 224 are arranged with different front and back positions in the extending direction of the fastening member 21. Thus, when the fastening member 21 is installed on the board main body 10, a corresponding anti-fooling effect can be achieved. Moreover, the connection stability between the main body 211 and the board main body 10 can be further improved.

[0122] In some embodiments, the projection of the clamping part 212 in the thickness direction of the board main body 10 does not coincide with the board main body 10.

[0123] It can be understood that when the projection of the clamping part 212 in the thickness direction of the board main body 10 does not coincide with the board main body 10, the clamping part 212 does not extend directly above the board main body 10. Then, in space, the electronic components on the board main body 10 do not interfere with the clamping part 212, which is convenient for the rational layout of the electronic components on the board main body 10.

[0124] In some embodiments, the projection of the clamping part 212 in the thickness direction of the board main body 10 coincides with at least a part of the board main body 10.

[0125] It can be understood that the electronic components on the board main body 10 will have partial interference with the clamping part 212. Thus, the design size of the pressing part 22 can be relatively shorter, and at the same time, the spanning range of the pressing part 22 can also be reduced.

[0126] Moreover, when the projection of the clamping part 212 coincides with the board main body 10, that is, at least a part of the clamping part 212 will occupy the installation space of the first installation surface 10a of the board main body 10. Then, the overall structure of the fastening member 21 will be more compact, and the distance between the clamping point of the clamping part 212 and the pressing part 22 and the connection point between the main body 211 of the fastening member 21 and the board main body 10 is smaller. Thus, the fastening member 21 can bear a greater acting force of the fastening part, making the connection reliability of the fastening member 21 on the board main body 10 higher.

[0127] Please refer to Figure 5 and Figure 7 , in some embodiments, the clamping part 212 has a first contact surface 21a; the pressing part 22 has a second contact surface 22a, and the first contact surface 21a and the second contact surface 22a are in contact connection.

[0128] Understandably, the clamping position of the clamping portion 212 and the pressing member 22 is located at the position where the first contact surface 21a and the second contact surface 22a are in contact, that is, the clamping portion between the clamping portion 212 and the pressing portion is in surface contact, and the clamping contact area between the two is larger to improve the connection stability between the clamping member 21 and the pressing member 22.

[0129] Here, the first contact surface 21a and the second contact surface 22a should be adapted. For example, when the first contact surface 21a is a flat surface, the second contact surface 22a should also be a flat surface; or, when the first contact surface 21a is a convex arc surface, the second contact surface 22a is a concave arc surface; or, when the first contact surface 21a is a wavy arc surface, the second contact surface 22a is also a matching wavy arc surface.

[0130] In this way, the clamping portion 212 and the pressing member 22 adopt a surface contact method, which can reduce the risk of scratching between the two.

[0131] In some embodiments, an insulating layer is provided on the first contact surface 21a; or, an insulating layer is provided on the second contact surface 22a; or, insulating layers are provided on both the first contact surface 21a and the second contact surface 22a.

[0132] Understandably, insulating the contact surface between the clamping portion 212 and the pressing member 22 can provide insulation protection for the flexible circuit board 100 and the connection position.

[0133] The insulating layer can be provided on the corresponding contact surface by spraying, bonding, and plugging.

[0134] Optionally, the insulating layer can be insulating cotton, insulating rubber strip, insulating coating, etc.

[0135] Please refer to Figure 6 and Figure 7 , in some embodiments, the clamping portion 212 has a fourth side 212a and a fifth side 212b arranged oppositely and a sixth side 212c connecting the fourth side 212a and the fifth side 212b. At least one of the fourth side 212a and the fifth side 212b is provided with a retaining portion 225, and the sixth side 212c is connected to the bending portion 213.

[0136] Understandably, the clamping portion 212 is a square structure or a structure similar to a square structure. Therefore, the clamping portion 212 has four side portions, and these four side portions are opposite to each other in pairs; the two relatively arranged side portions are respectively defined as the fourth side 212a and the fifth side 212b, and the side portion connected to the bending portion 213 is defined as the sixth side 212c.

[0137] The retaining portion 225 is a structure protruding from the clamping portion 212. For example, the retaining portion 225 can be a protrusion, a rib, a convex edge, a convex point, etc.

[0138] Thus, the fourth side 212a and the fifth side 212b are the opposite sides of the clamping portion 212. The two enclosing portions 225 are respectively arranged on the fourth side 212a and the fifth side 212b to limit the pressing member 22 by the two enclosing portions 225, so as to reduce the risk of the pressing member 22 disengaging from the clamping portion 212. For example, the enclosing portion 225 can be arranged on the third side 211c; or, the enclosing portion 225 can be arranged on the fourth side 212a; or, the enclosing portions 225 are arranged on both the third side 211c and the fourth side 212a.

[0139] Moreover, the sixth side 212c of the clamping portion 212 is used to connect with the bending portion 213. Then, the pressing member 22 extends into the clamping space enclosed by the clamping portion 212 and the enclosing portion 225 from the sixth side 212c away from the clamping portion 212.

[0140] Please refer to Figure 3 、 Figure 4 and Figure 8 Second, the present application further provides a terminal device, including a middle frame 201 and the above-mentioned circuit board 100, and the middle frame 201 surrounds the circuit board 100.

[0141] The terminal device can be a mobile phone, a tablet computer, a laptop computer, a handheld calculator, a wearable electronic device, a smart watch, etc.

[0142] The middle frame 201 is a part of the housing and is used to enclose and limit the circuit board 100.

[0143] For the terminal device provided by the embodiment of the present application, on the basis of having the above-mentioned circuit board 100, the layout of the electronic components in the terminal device of the present application can be more reasonable, and the space utilization rate of the circuit board 100 is higher.

[0144] Please refer to Figure 3 、 Figure 4 and Figure 8 In some embodiments, a step structure 204 is formed on the inner wall of the middle frame 201, a notch 10d for avoiding the step structure 204 is formed on the edge side of the board body 10 of the circuit board 100, and a through hole 226 is formed on the buckle member 21 of the pressing assembly 20 of the circuit board 100. The step structure 204 penetrates into the through hole 226 and is clamped to the buckle member 21.

[0145] Understandably, when the circuit board 100 is assembled with the middle frame 201, the notch 10d on the circuit board 100 is adapted to the step structure 204 of the middle frame 201, and the step structure 204 extends into the through hole 226 of the buckle 21 of the pressing assembly 20. Finally, the buckle 21 is snapped onto the step structure 204 to pre-fix the circuit board 100 to the frame body. Especially when the circuit board 100 is flipped, the step structure 204 and the buckle 21 are snapped together to prevent the circuit board 100 from falling off.

[0146] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application.

Claims

1. A circuit board, characterized in that, Comprising: A board body, the board body includes a first mounting surface and a second mounting surface disposed opposite to the first mounting surface, and a connection position for connecting a flexible circuit board is provided on the first mounting surface; A pressing assembly, the pressing assembly is used to press the flexible circuit board and the connection position, the pressing assembly includes a buckle member disposed on the second mounting surface and bent and extended to the first mounting surface at the edge side of the board body, and a pressing member with one end connected to the first mounting surface and the other end clamped to the buckle member.

2. The circuit board according to claim 1, wherein: The buckle member includes a main body portion connected to the second mounting surface, a clamping portion for the pressing member to be clamped, and a bending portion connecting the main body portion and the clamping portion.

3. The circuit board according to claim 2, wherein: Pins are provided on the main body portion, and mounting holes for the pins are formed on the board body.

4. The circuit board according to claim 3, characterized in that: The number of the pins is two, the main body portion has a first side and a second side disposed opposite to each other and a third side connecting the first side and the second side, one of the pins is disposed on the first side, the other pin is disposed on the second side, and the third side is connected to the bending portion.

5. The circuit board according to claim 4, characterized in that: The distances from the two pins to the bending portion are different.

6. The circuit board according to claim 2, wherein: The projection of the clamping portion in the thickness direction of the board body does not coincide with the board body.

7. The circuit board according to claim 2, wherein: The projection of the clamping portion in the thickness direction of the board body coincides with at least a part of the board body.

8. The circuit board according to any one of claims 2, 6, and 7, characterized in that: The clamping portion has a first contact surface; the pressing member has a second contact surface, and the first contact surface and the second contact surface are in contact connection.

9. The circuit board according to claim 8, wherein: An insulating layer is provided on the first contact surface and / or the second contact surface.

10. The circuit board according to claim 8, wherein: The clamping portion has a fourth side and a fifth side disposed opposite to each other and a sixth side connecting the fourth side and the fifth side, and at least one of the fourth side and the fifth side is provided with a surrounding portion, and the sixth side is connected to the bending portion.

11. A terminal device, characterized in that: Including a middle frame and the circuit board according to any one of claims 1 to 10, the middle frame surrounds the circuit board.

12. The terminal device according to claim 11, characterized in that: A stepped structure is formed on the inner wall of the middle frame, a notch for avoiding the stepped structure is formed on the edge side of the board body of the circuit board, a through hole is formed on the buckle member of the pressing assembly of the circuit board, and the stepped structure penetrates into the through hole and is clamped to the buckle member.

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