Circuit board assembly and electronic equipment

Abstract

The embodiment of the utility model relates to the technical field of electronics, and particularly discloses a circuit board assembly and electronic equipment, the circuit board assembly comprises a first circuit board, a second circuit board and a fixing assembly, the first circuit board comprises a first board body and a first board-to-board connector arranged on the first board body, the first circuit board comprises a first board body and a first board-to-board connector, the second circuit board comprises a second board body and a second board-to-board connector arranged on a connecting part of the second board body, the second board-to-board connector is used for being in butt joint with the first board-to-board connector so as to electrically connect the first circuit board and the second circuit board, the fixing assembly comprises a pressing piece and a fixing piece, the pressing piece is arranged on the second board body, and the fixing piece is arranged on the second board body. The fixing part is used for keeping the pressing piece at a preset position, the pressing piece abuts against the surface, away from the second board-to-board connector, of the connecting part, and the pressing piece presses the second board-to-board connector to the first board-to-board connector so that the first board-to-board connector and the second board-to-board connector can be kept connected. Through the above mode, the connection stability of the board-to-board connector and the reliability of signal transmission are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a circuit board assembly and an electronic device. Background Technology

[0002] With the rapid development of electronic technology, laptops, as portable electronic devices, have been widely used in people's daily lives and work. In laptops, FPC (Flexible Printed Circuit) cables, also known as FPC circuit boards, are important electronic components used to connect various electronic components and circuit boards inside the laptop. For example, FPC cables connect the motherboard to components such as the screen, keyboard, touchpad, and battery, enabling data and signal transmission. The flexibility of FPC cables allows for more flexible internal layouts in laptops, adapting to compact internal spaces while reducing the number of connecting cables and ensuring stable connections between components. The connection between one FPC cable and a circuit board or another FPC cable is typically achieved through a BTB (Board to Board) connector. BTB connectors enable fast and reliable connections between FPC cables and circuit boards or other FPC cables, providing high-density electrical connections within limited space, making them ideal for the confined space environment inside laptops.

[0003] In implementing the embodiments of this application, the inventors discovered that: Currently, when a laptop connects an FPC cable to a circuit board via a BTB connector, a male BTB connector is placed on the circuit board, and a female BTB connector is placed on the FPC cable. The male and female BTB connectors are interlocked, and the laptop's bottom shell presses against the surface of the FPC cable away from the female BTB connector, applying force between the female and male BTB connectors to maintain their connection. However, when the bottom shell deforms or has significant manufacturing errors, creating a gap between the bottom shell and the female BTB connector, the bottom shell cannot maintain pressure on the female BTB connector. This results in an unstable connection between the female and male BTB connectors, leading to unstable connection between the circuit board and the FPC cable, affecting the reliability of signal transmission and the overall performance of the device. Utility Model Content

[0004] In view of the above problems, the present invention provides a circuit board assembly and an electronic device that overcomes or at least partially solves the above problems.

[0005] To solve the above-mentioned technical problems, the present invention provides a circuit board assembly, including a first circuit board, a second circuit board, and a fixing component. The first circuit board includes a first board body and a first board-to-board connector, the first board-to-board connector being disposed on the first board body. The second circuit board includes a second board body and a second board-to-board connector. One end of the second board body is provided with a connecting portion, and the second board-to-board connector is disposed on the connecting portion. The second board-to-board connector is used to mate with the first board-to-board connector to electrically connect the first circuit board and the second circuit board. The fixing component includes a pressure plate and a fixing member. The pressure plate is disposed on the second board body, and the fixing member is used to hold the pressure plate in a preset position. When the pressure plate is in the preset position, the pressure plate abuts against the surface of the connecting portion away from the second board-to-board connector, and along the mating direction of the second board-to-board connector and the first board-to-board connector, the pressure plate, the connecting portion, the second board-to-board connector, and the first board-to-board connector overlap. The pressure plate presses the second board-to-board connector toward the first board-to-board connector, so that the first board-to-board connector and the second board-to-board connector remain connected.

[0006] In some embodiments, the two ends of the pressure plate are respectively located at the two ends of the connecting portion, one end of the pressure plate is provided with a first through hole, and the fixing member includes a first screw, which is used to pass through the first through hole and fix to the first plate or the side of the first plate away from the second plate.

[0007] In some embodiments, the fastener further includes a fixing piece disposed on the surface of the first plate facing the second plate, a slot is formed between the fixing piece and the first plate, and the other end of the pressure plate is inserted into the slot.

[0008] In some embodiments, the first plate is provided with a second through hole, and the other end of the pressure plate is provided with a bent portion, which passes through the second through hole and abuts against the surface of the first plate away from the second plate.

[0009] In some embodiments, the other end of the pressure plate is provided with a card hole, and the fixing member further includes a card connector. The card connector is connected to the first circuit board, and the card connector is provided with a card block for engaging with the card hole.

[0010] In some embodiments, the other end of the pressure plate is provided with a third through hole, and the fixing member further includes a second screw, which is used to pass through the third through hole and fix to the first plate or the side of the first plate away from the second plate.

[0011] In some embodiments, the pressure plate is provided with a recessed portion, which abuts against the connecting portion of the second plate.

[0012] In some embodiments, there are two first circuit boards, which are respectively disposed at both ends of the second board body. The two ends of the second board body are respectively provided with the connecting portion, and each connecting portion is provided with a second board-to-board connector, which is perpendicular to the direction from one end of the pressure plate to the other end. The two sides of the pressure plate are respectively provided with abutting portions, and the abutting portions abut against the connecting portions one by one.

[0013] In some embodiments, the tablet is made of metal or alloy.

[0014] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is to provide an electronic device, including a housing and the above-mentioned circuit board assembly, wherein the circuit board assembly is located inside the housing.

[0015] The beneficial effects of this utility model embodiment are as follows: Unlike the prior art, this utility model embodiment provides a circuit board assembly and an electronic device. The circuit board assembly includes a first circuit board, a second circuit board, and a fixing component. The first circuit board includes a first board body and a first board-to-board connector, with the first board-to-board connector disposed on the first board body. The second circuit board includes a second board body and a second board-to-board connector. One end of the second board body is provided with a connecting portion, and the second board-to-board connector is disposed on the connecting portion. The second board-to-board connector is used to mate with the first board-to-board connector to connect the first circuit board and the second circuit board. The board-to-board connector uses a fixing assembly including a pressure plate and a fixing member. The pressure plate is disposed on the second board body, and the fixing member is used to hold the pressure plate in a preset position. When the pressure plate is in the preset position, it abuts against the surface of the connecting portion away from the second board-to-board connector. Along the mating direction of the second and first board-to-board connectors, the pressure plate, the connecting portion, the second board-to-board connector, and the first board-to-board connector overlap. The pressure plate presses the second board-to-board connector towards the first board-to-board connector, thereby maintaining the connection between the first and second board-to-board connectors. This method improves the connection stability of the board-to-board connector and enhances the reliability of signal transmission. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of a circuit board assembly provided in an embodiment of the present invention;

[0018] Figure 2 This is an exploded view of a circuit board assembly provided in an embodiment of the present invention;

[0019] Figure 3 This is a perspective view of a circuit board assembly provided in another embodiment of the present invention;

[0020] Figure 4 This is an exploded view of a circuit board assembly provided in another embodiment of the present invention;

[0021] Figure 5 This is a perspective view of a circuit board assembly provided in another embodiment of the present utility model;

[0022] Figure 6 This is an exploded view of a circuit board assembly provided in another embodiment of this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0025] Please see Figure 1 and Figure 2 The circuit board assembly 1000 includes a first circuit board 1, a second circuit board 2, and a fixing component 3, which is used to keep the first circuit board 1 and the second circuit board 2 connected.

[0026] For the first circuit board 1 mentioned above, please refer to Figure 2 The first circuit board 1 includes a first board body 11 and a first board-to-board connector 12, the first board-to-board connector 12 being disposed on the first board body 11.

[0027] For the second circuit board 2 mentioned above, please refer to Figure 2 The second circuit board 2 includes a second board body 21 and a second board-to-board connector 22. One end of the second board body 21 is provided with a connecting part 211. The second board-to-board connector 22 is disposed on the connecting part 211. The second board-to-board connector 22 is used to mate with the first board-to-board connector 12 to electrically connect the first circuit board 1 and the second circuit board 2.

[0028] It should be noted that both the first board 11 and the second board 21 can be FPC (Flexible Printed Circuit Board) or Rigid Printed Circuit Board (RPCB), depending on the requirements of the application scenario.

[0029] For the aforementioned fixed component 3, please refer to [link / reference needed]. Figure 2 The fixing component 3 includes a pressure plate 31 and a fixing member 32. The pressure plate 31 is disposed on the second plate body 21, and the fixing member 32 is used to hold the pressure plate 31 in a preset position. When the pressure plate 31 is in the preset position, the pressure plate 31 abuts against the connecting part 211 away from the surface of the second board-to-board connector 22, and along the direction of mating of the second board-to-board connector 22 and the first board-to-board connector 12, the pressure plate 31, the connecting part 211, the second board-to-board connector 22 and the first board-to-board connector 12 overlap, and the pressure plate 31 presses the second board-to-board connector 22 toward the first board-to-board connector 12 so that the first board-to-board connector 12 and the second board-to-board connector 22 remain connected.

[0030] In some embodiments, the two ends of the pressure plate 31 are respectively located at the two ends of the connecting portion 211, and one end of the pressure plate 31 is provided with a first through hole 311. The fixing member 32 includes a first screw 321, which is used to pass through the first through hole 311 and fix to the first plate 11, thereby fixing one end of the pressure plate 31 to the first plate 11, so that the pressure plate 31 provides a stable pressure against the second plate 21 and the second plate-to-plate connector 22.

[0031] In some other embodiments, the fastener 32 further includes a first nut (not shown), which is located on the side of the first plate 11 opposite to the second plate 21. One end of the first screw 321 passes through the through hole and the first plate 11 and is screwed to the first nut to fix one end of the pressure plate 31.

[0032] In some embodiments, please refer to Figure 2The fixing member 32 also includes a fixing piece 322, which is disposed on the surface of the first plate 11 facing the second plate 21, forming a slot 3221 between the first plate 11. The other end of the pressure piece 31 is inserted into the slot 3221 to fix the other end of the pressure piece 31 to the first plate 11, further enhancing the fixing effect of the pressure piece 31 on the second plate 21 and the second board-to-board connector 22, and improving the connection stability of the first board-to-board connector 12 and the second board-to-board connector 22. The insertion and engagement of the slot 3221 and the pressure piece 31 not only simplifies the assembly process but also improves the stability of the connection, thereby improving the reliability of the circuit board assembly 1000 during long-term use.

[0033] In some embodiments, the other end of the pressure plate 31 is provided with a third through hole, and the fixing member 32 further includes a second screw (not shown), which is used to pass through the third through hole and fix to the first plate 11 to fix one end of the pressure plate 31. In some embodiments, the fixing member 32 further includes a second nut, which is located on the side of the first plate 11 opposite to the second plate 21, and the second screw is used to pass through the third through hole and the first plate 11 and screwed to the second nut to fix the other end of the pressure plate 31.

[0034] In some other embodiments, please refer to Figure 3 and Figure 4 The first plate 11 is provided with a second through hole 111. The other end of the pressure plate 31 is provided with a bent portion 312. The bent portion 312 passes through the first through hole 311 and abuts against the surface of the first plate 11 opposite to the second plate 21, thereby fixing the other end of the pressure plate 31. This ensures that both ends of the pressure plate 31 are fixed, enhancing the connection stability between the first board-to-board connector 12 and the second board-to-board connector 22. The bent portion 312 of the pressure plate 31 forms a self-locking structure, eliminating the need for additional fasteners 32, simplifying the assembly process, and reducing costs.

[0035] In some embodiments, please refer to Figure 4 The pressure plate 31 is provided with a recessed portion 313, which abuts against the connecting portion 211 of the second plate 21 to provide a more stable pressure on the second plate 21 and further enhance the fixation.

[0036] It should be noted that the tablet 31 is made of metal or alloy.

[0037] In some embodiments, please refer to Figure 5 and Figure 6There are two first circuit boards 1, which are respectively disposed at both ends of the second board body 21. Each end of the second board body 21 is provided with a connecting part 211, and each connecting part 211 is provided with a second board-to-board connector 22. Perpendicular to the direction from one end of the pressure plate 31 to the other end, both sides of the pressure plate 31 are provided with abutting parts 314, which abut against the connecting parts 211 one by one. Thus, the two second board-to-board connectors 22 on both sides of the second board body 21 are fixed by one pressure plate 31, and the two second board-to-board connectors 22 are stably connected to the corresponding first board-to-board connectors 12, reducing the number of fixing parts and improving space utilization.

[0038] It is understood that the method of fixing the tablet 31 is not limited to the above-mentioned limitations, and can also be other structures. For example, in some embodiments, please refer to [link to relevant documentation]. Figure 6 One end of the pressure plate 31 is fixed to the first plate 11 or the side of the first plate 11 facing away from the plate by a first screw 321, and the other end of the pressure plate 31 is provided with a locking hole 315. The fixing member 32 also includes a snap-fit ​​member 323, which is connected to the first circuit board 1. Optionally, the snap-fit ​​member 323 is connected to the first circuit board 1 by welding, screw fixing, or integral molding. The snap-fit ​​member 323 is provided with a snap-fit ​​block 3231, which engages with the locking hole 315 to fix the other end of the pressure plate 31, thereby fixing both ends of the pressure plate 31 and enhancing the connection stability between the first board-to-board connector 12 and the second board-to-board connector 22. Through the snap-fit ​​cooperation of the snap-fit ​​member 323 and the locking hole 315, the pressure plate 31 is quickly fixed, improving assembly efficiency.

[0039] It should be noted that the number of the first circuit board 1 and the second circuit board 2 is not limited to the above embodiment. The specific number and position setting are determined according to the actual application requirements. The specific components and number of the fixing component 3 are also determined according to the actual application.

[0040] In this embodiment of the invention, the circuit board assembly 1000 includes a first circuit board 1, a second circuit board 2, and a fixing assembly 3. The fixing assembly 3 includes a pressure plate 31 and a fixing member 32. The fixing member 32 is used to hold the pressure plate 31 in a fixed position, and the pressure plate 31 is used to press the second board-to-board connector 22 against the first board-to-board connector 12, thereby improving the contact reliability between the two and ensuring stable transmission of electrical signals. Through the cooperation of the pressure plate 31 and the fixing member 32, a stable electrical connection between the first circuit board 1 and the second circuit board 2 is achieved.

[0041] This utility model provides an embodiment of an electronic device, which includes a housing and the aforementioned circuit board assembly 1000. The circuit board assembly 1000 is disposed inside the housing. The structure and function of the circuit board assembly 1000 can be referred to the above embodiments, and will not be repeated here.

[0042] It should be noted that while the preferred embodiments of this utility model are provided in the specification and accompanying drawings, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this utility model; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this utility model specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A circuit board assembly, characterized in that, include: The first circuit board includes a first board body and a first board-to-board connector, wherein the first board-to-board connector is disposed on the first board body; The second circuit board includes a second board body and a second board-to-board connector. One end of the second board body is provided with a connecting part, and the second board-to-board connector is disposed on the connecting part. The second board-to-board connector is used to mate with the first board-to-board connector to electrically connect the first circuit board and the second circuit board. A fixing component includes a pressure plate and a fixing member. The pressure plate is disposed on the second plate body, and the fixing member is used to hold the pressure plate in a preset position. When the pressure plate is in the preset position, the pressure plate abuts against the surface of the connecting portion away from the second board-to-board connector, and along the mating direction of the second board-to-board connector and the first board-to-board connector, the pressure plate, the connecting portion, the second board-to-board connector and the first board-to-board connector overlap. The pressure plate presses the second board-to-board connector toward the first board-to-board connector so that the first board-to-board connector and the second board-to-board connector remain connected.

2. The circuit board assembly according to claim 1, characterized in that, The two ends of the pressing plate are respectively located at the two ends of the connecting part, and a first through hole is provided at one end of the pressing plate; The fastener includes a first screw, which is used to pass through the first through hole and fix to the first plate or the side of the first plate away from the second plate.

3. The circuit board assembly according to claim 2, characterized in that... , The fastener further includes a fixing piece, which is disposed on the surface of the first plate facing the second plate, and a slot is formed between the fixing piece and the first plate. The other end of the pressure plate is inserted into the slot.

4. The circuit board assembly according to claim 2, characterized in that... , The first plate is provided with a second through hole; The other end of the pressing plate is provided with a bending part, which passes through the second through hole and abuts against the surface of the first plate body away from the second plate body.

5. The circuit board assembly according to claim 2, characterized in that, The other end of the tablet is provided with a locking hole; The fastener also includes a snap-fit ​​component, which is connected to the first circuit board. The snap-fit ​​component is provided with a snap-fit ​​block, which is used to engage with the snap-fit ​​hole.

6. The circuit board assembly according to claim 2, characterized in that, The other end of the compression plate is provided with a third through hole; The fastener also includes a second screw, which is used to pass through the third through hole and fix to the first plate or the side of the first plate away from the second plate.

7. The circuit board assembly according to any one of claims 1-6, characterized in that, The pressing plate is provided with a recessed portion, which abuts against the connecting portion of the second plate.

8. The circuit board assembly according to any one of claims 1-6, characterized in that, The number of the first circuit boards is two, and the two first circuit boards are respectively disposed at both ends of the second board body. The two ends of the second board body are respectively provided with the connecting part, and each connecting part is provided with the second board to board connector. Perpendicular to the direction from one end of the pressing sheet to the other, the pressing sheet has abutment portions on both sides, and the abutment portions abut against the connecting portions one by one.

9. The circuit board assembly according to claim 1, characterized in that, The tablet is made of metal or alloy.

10. An electronic device, characterized in that, It includes a housing and a circuit board assembly as described in any one of claims 1-9, the circuit board assembly being located within the housing.

Images