Circuit board assembly and electronic equipment

Abstract

The utility model provides a circuit board assembly and electronic equipment, relates to the technical field of electronic equipment, can reduce the occupied space of a pressing structure, and facilitates the installation in the electronic equipment with limited space. The circuit board assembly comprises a circuit board, a connecting piece, a shielding cover and a pressing support. The connecting piece is arranged on the circuit board. The shielding cover and the connecting piece are located on the same side of the circuit board, the shielding cover is arranged on the circuit board, and the shielding cover and the connecting piece are arranged at intervals. The shielding cover is provided with a slot, and the opening of the slot faces the connecting piece. The pressing support comprises an inserting part and a connecting part which are opposite, the inserting part is inserted into the inserting groove, and the connecting part is connected to the connecting piece.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a circuit board assembly and an electronic device. Background Art

[0002] Electronic devices such as mobile phones and tablet computers have circuit board assemblies, which include circuit boards and electronic components arranged on the circuit boards. The electronic components include but are not limited to board-to-board (BTB) connectors, ambient light modules, and the like.

[0003] In circuit board assemblies, press-fit structures can be used to press electronic components together to prevent them from falling off the circuit board. However, as electronic devices become smaller and more versatile, space within them is limited. Press-fit structures need to reduce this space, but existing technologies often fail to meet this requirement. Utility Model Content

[0004] The present application provides a circuit board assembly and an electronic device, which can reduce the space occupied by a press-fit structure and facilitate installation in electronic devices with limited space.

[0005] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, a circuit board assembly is provided, comprising a circuit board, a connector, a shielding cover, and a press-fit bracket. The connector is disposed on the circuit board. The shielding cover and the connector are located on the same side of the circuit board, and the shielding cover is disposed on the circuit board and spaced apart from the connector. The shielding cover has a slot, the slot opening facing the connector. The press-fit bracket includes opposing plug-in portions and a connecting portion, the plug-in portion being inserted into the slot, and the connecting portion being connected to the connector.

[0007] In this way, the pressing structure composed of the connector and the pressing bracket uses the shielding cover to set the slot, and there is no need to specially set up a support member to carry the slot. Therefore, the space occupied by the pressing structure can be reduced, which is conducive to installation in electronic equipment with limited space.

[0008] Optionally, the shielding cover includes a shielding cover body and a limiting member. The shielding cover body includes a top wall, a side frame and a flange portion. The top wall is spaced apart from the circuit board, the side frame is located between the top wall and the circuit board, the flange portion is connected to the end of the side frame facing away from the top wall, and at least part of the flange portion is located between the side frame and the connector. The limiting member includes a fixing portion and a limiting portion, the fixing portion is located on the side of the top wall facing away from the circuit board and is fixed to the top wall. The limiting portion includes a first end and a second end opposite to each other, the first end being connected to the end of the fixing portion facing the connector. From the first end to the second end, the limiting portion extends toward the portion of the flange portion between the side frame and the connector. And along the extension direction of the limiting portion, the second end is spaced apart from the flange portion, and the gap between the second end and the flange portion forms a slot. This structure is simple and compact, which is beneficial to reducing the space occupied by the press-fit structure.

[0009] Optionally, the top wall includes a first top wall portion and a second top wall portion, wherein the first top wall portion is located between the second top wall portion and the connector, and the distance between the surface of the first top wall portion facing away from the circuit board and the circuit board is smaller than the distance between the surface of the second top wall portion facing away from the circuit board and the circuit board. The fixing portion is located on the side of the first top wall portion facing away from the circuit board and is fixed to the first top wall portion. In this way, a receiving groove is formed on the side of the first top wall portion facing away from the circuit board. By accommodating at least a portion of the fixing portion in this receiving groove, the flatness of the surface of the shielding cover facing away from the circuit board can be increased.

[0010] Optionally, the fixing portion is fixed to the first top wall portion by welding.

[0011] Optionally, the fixing portion is provided with at least one first positioning hole. The first top wall portion is provided with at least one second positioning hole. The at least one first positioning hole is opposite to and connected to the at least one second positioning hole. In this way, during the welding of the fixing portion to the first top wall portion, at least one positioning post can be inserted into the at least one first positioning hole and the corresponding second positioning hole to position the fixing portion and prevent misalignment of the fixing portion.

[0012] Optionally, there are two first positioning holes and two second positioning holes. The two first positioning holes are opposite and connected to the two second positioning holes. In this way, during the welding of the fixing portion on the first top wall, two positioning posts can be inserted into the two first positioning holes and the corresponding second positioning holes, respectively, to position the fixing portion and prevent misalignment. The appropriate number of first and second positioning holes ensures positioning accuracy while also maintaining the integrity and shielding performance of the shielding cover.

[0013] Optionally, the press-fit bracket further includes a bracket body and a transition portion. The transition portion includes opposing third and fourth ends. The third end is connected to the end of the bracket body facing the shielding cover, and the transition portion extends from the third end to the fourth end toward the circuit board. The plug-in portion is connected to the fourth end and is located between the transition portion and the shielding cover body. In this manner, the transition portion and the stopper cooperate to prevent the plug-in portion from being inserted too far into the slot and damaging the side frame.

[0014] Optionally, along the plugging direction of the plugging portion, the length of the plugging portion is less than or equal to the distance from the surface of the limiting portion facing away from the side frame to the side frame. In this way, the plugging portion can be prevented from squeezing and damaging the side frame.

[0015] Optionally, the shielding cover includes a top wall, a side frame, a flange portion, and a support portion. The top wall is spaced apart from the circuit board, and the side frame is positioned between the top wall and the circuit board. The flange portion is connected to the end of the side frame facing away from the top wall, and at least a portion of the flange portion is positioned between the side frame and the connector. The portion of the flange portion positioned between the side frame and the connector is a first flange portion. The support portion is connected to the end of the first flange portion facing away from the side frame, and the slot is provided on the support portion. This structure is simple and easy to implement.

[0016] Optionally, the connector includes a base and a first latch and a second latch disposed on the base. The second latch is positioned between the first latch and the slot, and a slot is formed between the first and second latches, with the connecting portion snapping into the slot. Thus, after connecting the second connector to the first connector, the plug-in portion of the press-fit bracket can first be inserted into the slot, and then the connecting portion of the press-fit bracket can be snapped into the slot. This simplifies the assembly process and facilitates assembly operations in confined spaces.

[0017] In a second aspect, an electronic device is provided, comprising electronic components and a circuit board assembly as described in any of the above technical solutions. The electronic components are located between the connector and the shielding cover of the circuit board assembly, and the electronic components are also located between the press-fit bracket of the circuit board assembly and the circuit board.

[0018] Because the electronic components are located between the connector and the shielding cover of the PCB assembly, and between the press-fit bracket and the PCB assembly, the press-fit bracket can restrict the position of the electronic components relative to the PCB, preventing them from falling off the PCB. Furthermore, the press-fit structure formed by the press-fit bracket and the connector is relatively small, reducing the space required and facilitating installation in electronic devices with limited space.

[0019] Optionally, the electronic component includes a first connector and a second connector, the first connector is arranged on the circuit board, and the second connector is located on a side of the first connector facing away from the circuit board.

[0020] Optionally, the electronic device further includes a device and an electrical connection structure, wherein one end of the electrical connection structure is connected to the device, and the other end of the electrical connection structure is connected to the second connector.

[0021] Optionally, the electronic device further includes a first shell, a second shell, a hinge mechanism, an inner screen, and an outer screen, wherein the hinge mechanism is connected between the first shell and the second shell to support the electronic device to switch between an unfolded state and a folded state. A portion of the inner screen is provided in the first shell, another portion is provided in the second shell, and another portion is provided in the hinge mechanism. The outer screen is provided on the side of the first shell facing away from the inner screen and is connected to the first shell. The outer screen forms the above-mentioned device, and the circuit board assembly, electronic components, and electrical connection structure are provided in the first shell.

[0022] Optionally, when the electronic device is in the unfolded state, the electronic device is in the shape of a rectangular plate, and the first housing, the hinge mechanism, and the second housing are arranged along the length direction of the electronic device. In this way, the electronic device is a vertically foldable folding screen device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of an electronic device in an unfolded state provided by some embodiments of the present application;

[0024] Figure 2 for Figure 1 A perspective view of the electronic device shown in a semi-folded state;

[0025] Figure 3 for Figure 1 A three-dimensional image of the electronic device in a folded state;

[0026] Figure 4 for Figure 1-Figure 3 a schematic diagram of the exploded structure of the electronic device shown;

[0027] Figure 5 for Figure 4 a front view of a circuit board assembly in the illustrated electronic device;

[0028] Figure 6 A schematic structural diagram of a circuit board assembly provided in some other embodiments of the present application;

[0029] Figure 7 for Figure 6 A schematic diagram of a cross-sectional structure of a portion of the circuit board assembly shown along the AA direction;

[0030] Figure 8 for Figure 7 A partial enlarged view of the circuit board assembly in area I is shown;

[0031] Figure 9 for Figure 6 A schematic diagram of the exploded structure of the circuit board assembly shown;

[0032] Figure 10 A three-dimensional diagram of a partial structure of a circuit board assembly provided in some other embodiments of the present application. DETAILED DESCRIPTION

[0033] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," or "fourth" may explicitly or implicitly include one or more of the features.

[0034] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0035] The present application provides an electronic device, which is a type of device with an audio speaker function. Specifically, the electronic device can be a user equipment (UE) or a terminal device, etc. For example, the electronic device can be a tablet computer (portable android device, PAD), a laptop computer, a television, an all-in-one machine, a personal digital assistant (PDA), a handheld device with a wireless communication function, a computing device, a vehicle-mounted device, a smart wearable device, a service robot, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in a smart city, a wireless terminal in a smart home, and other mobile terminals or fixed terminals. The following embodiments are exemplified by taking the electronic device as a folding screen device, and the folding screen device can be, for example, a folding screen mobile phone.

[0036] See also Figure 1-Figure 3 , Figure 1 This is a three-dimensional diagram of an electronic device 10 in an unfolded state provided in some embodiments of the present application. Figure 2 for Figure 1 The electronic device 10 is shown in a three-dimensional diagram in a semi-folded state. Figure 3 for Figure 1A three-dimensional diagram of the electronic device 10 in a folded state.

[0037] The electronic device 10 includes an inner screen 1 , an outer screen 2 and a housing 3 .

[0038] It is understandable that Figure 1-Figure 3 Only some components of the electronic device 10 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not affected by the present invention. Figure 1 and Figure 2 In some other embodiments, the electronic device 10 may not be provided with the inner screen 1 or the outer screen 2.

[0039] In addition, when the electronic device 10 is in the unfolded state, the electronic device 10 is in the shape of a rectangular plate. Based on this, in order to facilitate the description of the various embodiments below, an XYZ coordinate system is established for the electronic device 10 in the unfolded state, specifically defining the width direction of the electronic device 10 as the X-axis direction, the length direction of the electronic device 10 as the Y-axis direction, and the thickness direction of the electronic device 10 as the Z-direction. It can be understood that the coordinate system setting of the electronic device 10 can be flexibly set according to actual needs, and no specific limitation is made here. Of course, in some other embodiments, the electronic device 10 in the unfolded state can also be in the shape of a square plate, a circular plate, an elliptical plate, etc., and this application does not make specific limitations on this.

[0040] The inner screen 1 is used to realize a large-screen display function when the electronic device 10 is in an unfolded state. The inner screen 1 can be a flexible screen. For example, the inner screen 1 can be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode (micro organic light-emitting diode) screen, or a quantum dot light-emitting diode (QLED) screen. The outer screen 2 is used to realize a small-screen display when the electronic device 10 is in a folded state. The outer screen 2 can be a hard screen. For example, the outer screen 2 can be a liquid crystal display (LCD). Of course, in other embodiments, the outer screen 2 can also be a flexible screen, and this application does not make specific limitations on this.

[0041] The housing 3 is used to support the inner screen 1 and the outer screen 2 and allows the electronic device 10 to switch between a folded state and an unfolded state.

[0042] The housing 3 may include a first housing 31, a second housing 32, and a hinge mechanism 33 connected between the first housing 31 and the second housing 32. When the electronic device 10 is in the unfolded state, refer to Figure 1, the first housing 31, the hinge mechanism 33, and the second housing 32 can be arranged in sequence along the Y-axis, with the hinge mechanism 33 extending in the X-axis direction. In this way, the electronic device 10 is a vertically foldable folding screen device. In other embodiments, when the electronic device 10 is in the unfolded state, the first housing 31, the hinge mechanism 33, and the second housing 32 can also be arranged in sequence along the X-axis, with the hinge mechanism 33 extending in the Y-axis direction. In this way, the electronic device 10 is a horizontally foldable folding screen device.

[0043] The inner screen 1 is partially supported by the first housing 31 , partially supported by the second housing 32 , and partially supported by the hinge mechanism 33 . The outer screen 2 is disposed on a side of the first housing 31 facing away from the inner screen 1 .

[0044] The hinge mechanism 33 is used to enable relative rotation between the first housing 31 and the second housing 32 to change the angle θ between the portion of the inner screen 1 supported by the first housing 31 and the portion supported by the second housing 32 on the display side of the inner screen 1, thereby enabling the electronic device 10 to switch between the folded state and the unfolded state. The display side of the inner screen 1 refers to the side to which the display surface of the inner screen 1 faces, and the display surface of the inner screen 1 refers to the surface of the inner screen that displays video or images.

[0045] In some embodiments, see Figure 1 When the angle θ is approximately equal to 180°, the inner screen 1 and the electronic device 10 are in the unfolded state. In this way, a large screen display can be achieved with the help of the inner screen 1 to provide users with richer visual effects. When the angle θ is approximately equal to 0°, please refer to Figure 3 , the inner screen 1 and the electronic device 10 are in a folded state. In this way, the shell 3 protects the inner screen 1 from being contaminated or scratched, and the electronic device 10 is small in size and easy to carry. Figure 3 When the electronic device 10 is in the folded state, the outer screen 2 is exposed, and a small screen display can be realized with the help of the outer screen 2. When the angle θ is between 0° and 180°, please refer to Figure 2 , the electronic device 10 is in a semi-folded state.

[0046] See also Figure 4 , Figure 4 for Figure 1-Figure 3 Schematic diagram of the exploded structure of electronic device 10. Electronic device 10 also includes a circuit board assembly 4. Circuit board assembly 4 can be disposed within first housing 31. In other embodiments, circuit board assembly 4 can also be disposed within second housing 32. Circuit board assembly 4 can be the main board of electronic device 10. In other embodiments, circuit board assembly 4 can also be a sub-board of electronic device 10.

[0047] Please also refer to Figure 4 and Figure 5 , Figure 5 for Figure 4 The front view of the circuit board assembly 4 in the electronic device 10 is shown. The circuit board assembly 4 includes a circuit board 41, electronic components 42 and a press-fit structure 43.

[0048] The circuit board 41 can be a hard board, a soft board, or a combination of hard and soft boards. This application uses the circuit board 41 as a hard board for illustrative purposes. Specifically, the circuit board 41 can be a printed circuit board (PCB).

[0049] In some embodiments, the electronic component 42 may be a BTB connector. Of course, in other embodiments, the electronic component 42 may also be an ambient light sensor or an adapter board, etc. This application uses the electronic component 42 as a BTB connector for exemplary description.

[0050] Electronic component 42 includes a first connector 421 and a second connector 422. Optionally, first connector 421 can be a male connector of a BTB connector, and second connector 422 can be a female connector of a BTB connector. In other embodiments, first connector 421 can be a female connector of a BTB connector, and second connector 422 can be a male connector of a BTB connector. First connector 421 and second connector 422 are mated, contacted, or welded to achieve electrical connectivity.

[0051] The electronic components 42 are arranged on the circuit board 41. In some embodiments, please refer to Figure 4 , the electronic components 42 can be arranged on the surface of the circuit board 41 facing the outer screen 2. Of course, in other embodiments, the electronic components 42 can also be arranged on the surface of the circuit board 41 facing away from the outer screen 2. This application is described as an example in which the electronic components 42 are arranged on the surface of the circuit board 41 facing the outer screen 2, which is not to be considered as a special limitation of this application.

[0052] When the electronic component 42 is a BTB connector, refer to Figure 4 and Figure 5 The first connector 421 is disposed on the circuit board 41 , and the second connector 422 is located on a side of the first connector 421 facing away from the circuit board 41 .

[0053] In some embodiments, see Figure 4 The electronic device 10 may further include a device M and an electrical connection structure 5. The device M may be an external screen 2. In other embodiments, the device M may also be a camera module, a flash module, a vibration motor, and the like.

[0054] The electrical connection structure 5 is disposed within the first housing 31. The electrical connection structure 5 may be a flexible printed circuit (FPC) board, a PCB, a wire, or a structure formed by weaving a wire and a flexible material. This application uses an FPC board as an example for the electrical connection structure 5, and this is not to be considered as a special limitation of this application.

[0055] One end of the electrical connection structure 5 is connected to the device M, and the other end is connected to the second connector 422 . The second connector 422 is used to electrically connect the device M to the circuit board 41 .

[0056] When the device M is the external screen 2, as the size of the external screen 2 increases and its functions gradually improve, the width of the electrical connection structure 5 becomes larger. At the same time, due to the limited internal space of the first shell 31 and the large number of internal electronic components (such as the camera, main control chip, earpiece and battery), the space for accommodating the electrical connection structure 5 is relatively small, resulting in a relatively short length of the electrical connection structure 5. In the process of installing the external screen 2 with the second connector 422 on the first shell 31 from the side of the first shell 31 facing away from the inner screen 1, due to the obstruction of the large area of the external screen 2 and the limitation of the short length of the electrical connection structure 5, the connection operation space of the second connector 422 on the first connector 421 is relatively small, and the operation is relatively difficult.

[0057] See also Figure 4 and Figure 5 The press-fit structure 43 includes a press-fit bracket 431, a support member 432, and a connector 433. The support member 432 and the connector 433 are disposed on the circuit board 41. Optionally, the support member 432 and the connector 433 may be hardware, and the support member 432 and the connector 433 may be welded and fixed to the circuit board 41. In other embodiments, the support member 432 and the connector 433 may also be disposed on the circuit board 41 by gluing or threading.

[0058] The support member 432 and the connector 433 are spaced apart, with the electronic component 42 positioned between them. A slot C is defined on the support member 432, with the slot C opening facing the connector 433. A press-fit bracket 431 is positioned on the side of the electronic component 42 facing away from the circuit board 41. The press-fit bracket 431 includes opposing insertion portions 431a and connecting portions 431b. The insertion portion 431a is inserted into the slot C, and the connecting portion 431b is connected to the connector 433.

[0059] In this way, the position of the electronic component 42 relative to the circuit board 41 is limited by the press-fit structure 43 , thereby preventing the electronic component 42 from falling off the circuit board 41 .

[0060] In some embodiments, see Figure 5The connecting member 433 may include a base 433a and a first buckle 433b and a second buckle 433c provided on the base 433a. The second buckle 433c is located between the first buckle 433b and the slot C, and a slot D is formed between the first buckle 433b and the second buckle 433c. The connecting portion 431b of the press-fit bracket 431 is snapped into the slot D. In this way, after the second connector 422 is connected to the first connector 421, the plug-in portion 431a of the press-fit bracket 431 can be first inserted into the slot C, and then the connecting portion 431b of the press-fit bracket 431 can be snapped into the slot D. This assembly process is simple and convenient for assembly operations in a narrow space.

[0061] However, since the above-mentioned pressing structure 43 includes three parts: a pressing bracket 431, a support member 432 and a connecting member 433, the pressing structure 43 is large in size and occupies a large space in the electronic device 10, which is not conducive to installation in the electronic device 10 with limited space.

[0062] To solve the above technical problems, please refer to Figure 6-Figure 9 , Figure 6 This is a schematic structural diagram of a circuit board assembly 4 provided in some other embodiments of the present application. Figure 7 for Figure 6 The schematic cross-sectional structure diagram of a portion of the circuit board assembly 4 along the AA direction is shown. Figure 8 for Figure 7 The enlarged view of the circuit board assembly 4 in area I is shown. Figure 9 for Figure 6 The schematic diagram of the exploded structure of the circuit board assembly 4 is shown.

[0063] The circuit board assembly 4 may include a circuit board 41, electronic components (not shown), a press-fit structure 43, and a shielding cover 44. The structure, relative positional relationship, and position of the circuit board 41 and the electronic components within the electronic device 10 may be implemented with reference to any of the above-described embodiments and will not be described in detail here.

[0064] The press-fit structure 43 may include a press-fit bracket 431 and a connector 433. The connector 433 is disposed on the circuit board 41. The structure of the connector 433 and the manner in which the connector 433 is disposed on the circuit board 41 may be implemented using any of the above embodiments and will not be described in detail herein.

[0065] The shielding cover 44 can be a metal conductive member that provides electromagnetic shielding for the electronic components housed therein. The shielding cover 44 and the connector 433 are located on the same side of the circuit board 41, and the shielding cover 44 is disposed on the circuit board 41. The shielding cover 44 can be fixed to the circuit board 41 by adhesive bonding or welding, which is not specifically limited in this application.

[0066] The shielding cover 44 and the connector 433 are spaced apart and are provided with a slot C, which opens toward the connector 433. The structure of the press-fit bracket 431 can also be implemented with reference to the above-described embodiments. The inserting portion 431a of the press-fit bracket 431 is inserted into the slot C, and the connecting portion 431b is connected to the connector 433. The connection between the connecting portion 431b and the connector 433 can be implemented with reference to any of the above-described embodiments and will not be further described here.

[0067] In this way, the compression structure 43 sets the slot C with the help of the shielding cover 44, and there is no need to set up a special support member to support the slot C. Therefore, the space occupied by the compression structure 43 can be reduced, which is conducive to installation in the electronic device 10 with limited space.

[0068] There are many ways to arrange the slot C on the shielding cover 44.

[0069] For examples, please see Figure 6-Figure 9 The shielding cover 44 may include a shielding cover body 441 and a limiting member 442 .

[0070] The shielding cover body 441 includes a top wall 441a, a side frame 441b, and a flange portion 441c. The top wall 441a is spaced apart from the circuit board 41. The side frame 441b is located between the top wall 441a and the circuit board 41, and the flange portion 441c is connected to the end of the side frame 441b facing away from the top wall 441a. At least a portion of the flange portion 441c is located between the side frame 441b and the connector 433. In other words, the flange portion 441c can be partially located between the side frame 441b and the connector 433, or it can be located entirely between the side frame 441b and the connector 433. This application uses the example of the flange portion 441c being partially located between the side frame 441b and the connector 433 as an example. The shielding cover 44 can be specifically fixed to the circuit board 41 by means of the flange portion 441c.

[0071] The limiting member 442 includes a fixing portion 442a and a limiting portion 442b. The fixing portion 442a is located on the side of the top wall 441a facing away from the circuit board 41 and is fixed to the top wall 441a. The limiting portion 442b includes a first end a and a second end b opposite to each other. The first end a is connected to the end of the fixing portion 442a facing the connecting member 433. From the first end a to the second end b, the limiting portion 442b extends toward the portion of the flange between the side frame 441b and the connecting member 433. Moreover, along the extension direction of the limiting portion 442b, the second end b and the flange 441c are spaced apart, and the gap between the second end b and the flange 441c forms a slot C. This structure is simple and compact, which is conducive to reducing the space occupied by the press-fit structure.

[0072] In some embodiments, please refer to Figure 6-Figure 9The top wall 441a includes a first top wall portion 441a1 and a second top wall portion 441a2. The first top wall portion 441a1 is located between the second top wall portion 441a2 and the connector 433, and the distance between the surface of the first top wall portion 441a1 facing away from the circuit board 41 and the circuit board 41 is smaller than the distance between the surface of the second top wall portion 441a2 facing away from the circuit board 41 and the circuit board 41. A receiving groove is formed on the side of the first top wall portion 441a1 facing away from the circuit board 41. Based on this, the fixing portion 442a is located on the side of the first top wall portion 441a1 facing away from the circuit board 41 and is fixed to the first top wall portion 441a1. In this way, by accommodating at least a portion of the fixing portion 442a in the receiving groove on the side of the first top wall portion 441a1 facing away from the circuit board 41, the flatness of the surface of the shielding cover 44 facing away from the circuit board 41 can be increased.

[0073] In the above embodiment, the fixing portion 442a can be fixed to the first top wall portion 441a1 by adhesive bonding or by welding. This application uses the example of the fixing portion 442a being fixed to the first top wall portion 441a1 by welding. The welding method can be laser welding or solder paste welding, which is not specifically limited in this application.

[0074] In some embodiments, the fixing portion 442a is provided with at least one first positioning hole c1. "At least one" means one or more. The first top wall portion 441a1 is provided with at least one second positioning hole c2. The at least one first positioning hole c1 is opposite and connected to the at least one second positioning hole c2. Thus, during the welding process of the fixing portion 442a on the first top wall portion 441a1, at least one positioning post can be inserted into the at least one first positioning hole c1 and the corresponding second positioning hole c2 to position the fixing portion 442a and prevent misalignment.

[0075] In some embodiments, see Figure 9 There are two first positioning holes c1 and two second positioning holes c2. The two first positioning holes c1 are opposite and connected to the two second positioning holes c2. This allows two positioning posts to be inserted into the two first positioning holes c1 and the corresponding second positioning holes c2 during welding of the fixing portion 442a to the first top wall portion 441a1, respectively, to position the fixing portion 442a and prevent misalignment. The appropriate number of first positioning holes c1 and second positioning holes c2 ensures positioning accuracy while also preserving the integrity and shielding performance of the shielding cover 44.

[0076] In some embodiments, see Figure 8The press-fit bracket 431 further includes a bracket body 431c and a transition portion 431d. The transition portion 431d includes a third end c and a fourth end d. The third end c is connected to the end of the bracket body 431c facing the shielding cover 44. The transition portion 431d extends from the third end c to the fourth end d toward the circuit board 41. The plug-in portion 431a is connected to the fourth end d and is located between the transition portion 431d and the shielding cover body 441.

[0077] In this way, the transition portion 431d cooperates with the limiting portion 442b to stop, thereby preventing the plug-in portion 431a from being inserted into the slot C too far and damaging the side frame 441b.

[0078] In some embodiments, please refer to Figure 8 Along the insertion direction of the insertion portion 431a (i.e., the X1 direction), the length of the insertion portion 431a is less than or equal to the distance from the surface of the limiting portion 442b facing away from the side frame 441b to the side frame 441b. This prevents the insertion portion 431a from squeezing and damaging the side frame 441b.

[0079] In some embodiments, see Figure 10 , Figure 10 This is a perspective view of a portion of the structure of a circuit board assembly 4 provided in some other embodiments of the present application. In this embodiment, the circuit board assembly 4 may include a circuit board (not shown), electronic components (not shown), a press-fit structure 43, and a shielding cover 44. The structure, relative positional relationship, and location of the circuit board, electronic components, and press-fit structure 43 within the electronic device 10 may be implemented with reference to any of the above embodiments and are not further described here.

[0080] The shielding cover 44 includes a top wall 441a, a side frame 441b, a flange portion 441c, and a support portion 441d. The top wall 441a is spaced apart from the circuit board 41, and the side frame 441b is located between the top wall 441a and the circuit board 41. The flange portion 441c is connected to the end of the side frame 441b facing away from the top wall 441a. At least a portion of the flange portion 441c is located between the side frame 441b and the connector 433. In other words, the flange portion 441c can be partially located between the side frame 441b and the connector 433, or it can be located entirely between the side frame 441b and the connector 433. This application uses the example of the flange portion 441c being located entirely between the side frame 441b and the connector 433 as an example.

[0081] To facilitate the description of the following embodiments, the portion of flange portion 441c located between side frame 441b and connector 433 is defined as first flange portion N1. Support portion 441d is connected to the end of first flange portion N1 away from side frame 441b, and slot C is provided on support portion 441d. This structure is simple and easy to implement.

[0082] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit board assembly, characterized in that: include: circuit boards; a connecting member, the connecting member being arranged on the circuit board; a shielding cover, the shielding cover and the connecting member being located on the same side of the circuit board, the shielding cover being disposed on the circuit board and spaced apart from the connecting member; the shielding cover being provided with a slot, the opening of the slot being oriented toward the connecting member; A press-fit bracket comprises a plug-in portion and a connecting portion relative to each other, wherein the plug-in portion is plugged into the slot, and the connecting portion is connected to the connecting piece.

2. The circuit board assembly according to claim 1, wherein: The shielding cover comprises: A shielding cover body, comprising a top wall, a side frame, and a flange portion; the top wall is spaced apart from the circuit board, the side frame is located between the top wall and the circuit board, the flange portion is connected to an end of the side frame facing away from the top wall, and at least a portion of the flange portion is located between the side frame and the connector; A limiting member, the limiting member includes a fixing portion and a limiting portion, the fixing portion is located on the side of the top wall facing away from the circuit board and is fixed to the top wall; the limiting portion includes a first end and a second end relative to each other, the first end is connected to an end of the fixing portion facing the connecting member; from the first end to the second end, the limiting portion extends toward a portion of the flange portion between the side frame and the connecting member; and along the extension direction of the limiting portion, the second end is spaced apart from the flange portion, and the gap between the second end and the flange portion forms the slot.

3. The circuit board assembly according to claim 2, wherein: The top wall includes a first top wall portion and a second top wall portion, the first top wall portion is located between the second top wall portion and the connecting member, and a distance from a surface of the first top wall portion facing away from the circuit board to the circuit board is smaller than a distance from a surface of the second top wall portion facing away from the circuit board to the circuit board; The fixing portion is located on a side of the first top wall portion facing away from the circuit board and is fixed to the first top wall portion.

4. The circuit board assembly according to claim 3, wherein: The fixing portion is fixed to the first top wall portion by welding.

5. The circuit board assembly according to claim 3, wherein: The fixing portion is provided with at least one first positioning hole; the first top wall portion is provided with at least one second positioning hole; The at least one first positioning hole is respectively opposite to and communicates with the at least one second positioning hole.

6. The circuit board assembly according to claim 5, wherein: The number of the first positioning holes is two, and the number of the second positioning holes is two; the two first positioning holes are respectively opposite to and connected with the two second positioning holes.

7. The circuit board assembly according to claim 2, wherein: The press-fit bracket further comprises a bracket body and a transition portion; The transition portion includes a third end and a fourth end opposite to each other, the third end being connected to the end of the bracket body facing the shielding cover, and the transition portion extends toward the circuit board from the third end to the fourth end; The plug-in portion is connected to the fourth end, and the plug-in portion is located between the transition portion and the shielding cover body.

8. The circuit board assembly according to claim 7, wherein: Along the plugging direction of the plugging portion, the length of the plugging portion is less than or equal to the distance from the surface of the limiting portion facing away from the side frame to the side frame.

9. The circuit board assembly according to claim 1, wherein: The shielding cover includes a top wall, a side frame, a flange portion and a support portion; The top wall is spaced apart from the circuit board, and the side frame is located between the top wall and the circuit board; The flange portion is connected to an end of the side frame facing away from the top wall, and at least a portion of the flange portion is located between the side frame and the connecting member; The portion of the flange portion located between the side frame and the connecting member is a first flange portion, the support portion is connected to an end of the first flange portion away from the side frame, and the slot is provided on the support portion.

10. The circuit board assembly according to any one of claims 1 to 9, characterized in that: The connecting member includes a base and a first buckle and a second buckle provided on the base; The second buckle is located between the first buckle and the slot, and a slot is formed between the first buckle and the second buckle, and the connecting portion is snapped into the slot.

11. An electronic device, characterized in that: include: electronic components; The circuit board assembly according to any one of claims 1 to 10, wherein the electronic component is located between the connector and the shielding cover of the circuit board assembly, and the electronic component is also located between the press-fit bracket and the circuit board of the circuit board assembly.

12. The electronic device according to claim 11, wherein: The electronic component includes a first connector and a second connector. The first connector is arranged on the circuit board, and the second connector is located on a side of the first connector that faces away from the circuit board.

13. The electronic device according to claim 12, wherein: Also includes: Devices; An electrical connection structure, one end of which is connected to the device, and the other end of which is connected to the second connector.

14. The electronic device according to claim 13, wherein: Also includes: a first shell; a second shell; a hinge mechanism connected between the first housing and the second housing to support the electronic device to switch between an unfolded state and a folded state; an inner screen, wherein a portion of the inner screen is disposed on the first shell, another portion is disposed on the second shell, and another portion is disposed on the rotating shaft mechanism; An outer screen is arranged on the side of the first shell facing away from the inner screen and is connected to the first shell. The outer screen forms the device, and the circuit board assembly, the electronic components and the electrical connection structure are arranged in the first shell.

15. The electronic device according to claim 14, characterized in that When the electronic device is in an unfolded state, the electronic device is in a rectangular plate shape, and the first shell, the hinge mechanism, and the second shell are arranged along a length direction of the electronic device.

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