PCB assembly and electronic equipment
By using the clamping plates and surface mount nuts in the PCB assembly for fixed connection, the problem of development board space occupation and increased cost caused by different sizes of M.2 modules is solved, simplifying the wiring and improving the aesthetics, while also supporting convenient replacement of different module models.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIMCOM WIRELESS SOLUTIONS SHANGHAI
- Filing Date
- 2024-12-31
- Publication Date
- 2026-04-28
AI Technical Summary
In the existing technology, the different sizes of M.2 modules require multiple nut positions to be reserved on the development board, which occupies layout space, affects wiring and increases costs, while also reducing the aesthetics of the development board.
The system uses PCB components, including a development board baseboard, connectors, M.2 modules, pressure plates, surface mount nuts, and matching screws. The fixed connection between the pressure plates and surface mount nuts reduces the number of nuts on the development board, accommodates different models of M.2 modules, and simplifies the wiring structure.
It reduces the space occupied by the development board, simplifies the wiring structure, reduces production costs, improves the aesthetics of the development board, and enables convenient replacement of different M.2 modules.
Smart Images
Figure CN224178372U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of wireless transmission terminal technology, and in particular to a PCB assembly and electronic device. Background Technology
[0002] A PCB (Printed Circuit Board) is a crucial component of the electronics industry. Almost every electronic device, from small items like watches and calculators to large systems like computers, communication devices, and military weaponry, utilizes PCBs to enable electrical interconnection between integrated circuits and other electronic components. A PCB consists of an insulating substrate, connecting wires, and solder pads for mounting and soldering electronic components, serving the dual function of conductive lines and an insulating base. It replaces complex wiring, enabling electrical connections between components in a circuit. This simplifies assembly and soldering, reduces the amount of wiring work required by traditional methods, significantly lessening the workload for workers; it also reduces the overall size of the device, lowers product costs, and improves the quality and reliability of electronic equipment. PCBs offer excellent product consistency, allowing for standardized designs that facilitate mechanization and automation in production. Furthermore, a fully assembled and tested PCB can serve as a spare part, facilitating interchangeability and maintenance of the entire product. Currently, PCBs are widely used in the manufacturing of electronic products.
[0003] M.2 is a new transmission interface standard specification developed by the PCI-SIG and SATA-IO standards organizations. Originally called NGFF (Next Generelation Form), it was later renamed M.2. M.2 supports SATA, USB, and PCIe interfaces, has the advantages of different standard form factors and high transmission speeds, and is suitable for various types of expansion cards, such as solid-state drives (SSDs), Wi-Fi, Bluetooth (BT), near-field communication (NFC), etc.
[0004] M.2 modules come in various sizes. They support expansion, contraction, and the integration of multiple functions into a single form factor module solution. Currently, to meet the usage requirements of different M.2 modules and reduce the risk of board modification, during the initial design of the development board, it is necessary to pre-install surface mount nuts in different positions on the development board for installing corresponding M.2 modules. When changing to different sized M.2 modules during the use of the development board, the positions of the nuts on the development board need to be changed to achieve the purpose of fixing the module. Utility Model Content
[0005] The purpose of this application is to provide a PCB assembly and electronic device that is suitable for connecting and fixing M.2 series modules of different sizes to development boards. This reduces the layout space required for development boards, facilitates wiring, improves the versatility of M.2 modules, saves costs, and enhances the aesthetics of development boards.
[0006] To address the aforementioned technical problems, embodiments of this application provide a PCB assembly, including a development board base plate, a connector, an M.2 module, a pressure plate, a surface mount nut, and matching screws. The connector and the surface mount nut are attached to the development board base plate; the gold finger end of the M.2 module is connected to the M.2 connector; the screw hole end of the M.2 module is connected to the pressure plate; and the pressure plate and the surface mount nut are fixed to the development board base plate by matching screws.
[0007] In some implementations, the M.2 module communicates with the development board baseboard via a connector.
[0008] In some implementations, the width and height of the slot are set to correspond to different models of M.2 modules.
[0009] In some embodiments, the pressure plate is provided with a slot; the screw hole end of the M.2 module is inserted and connected to the pressure plate through the slot.
[0010] In some embodiments, the pressure plate has a center distance, which is the distance from the center of the patch nut to the center of the screw hole of the M.2 module.
[0011] In some implementations, the length of the center rod is set to correspond to different models of M.2 modules.
[0012] In some implementations, the connector is connected to the development board base plate by welding.
[0013] In some embodiments, the patch nut and matching screw are provided in pairs.
[0014] This invention also proposes an electronic device, including a power module and a PCB assembly as described in any of the above embodiments, wherein the power module is connected to the PCB assembly and supplies power to the PCB assembly.
[0015] The PCB assembly provided in some embodiments of this application fixes the M.2 module to the client terminal development board base plate using a clamping plate, eliminating the need for redundant nuts, reducing the space on the development board base plate, simplifying the wiring structure, saving production costs, and improving aesthetics. The gold finger end of the M.2 module is connected to the connector, and the screw hole end of the M.2 module is connected to the clamping plate. Gently pressing down causes the clamping plate to contact the surface mount nut, tightening the screw, making installation convenient. When replacing different models of M.2 modules, only the corresponding clamping plate needs to be replaced, enabling the replacement of different models of M.2 modules without modifying the development board. Attached Figure Description
[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.
[0017] Figure 1 This is a schematic diagram of the development board baseplate where the M.2 module is located in the related technology;
[0018] Figure 2 These are schematic diagrams of PCB component structures provided in some embodiments of this application;
[0019] Figure 3 This is a schematic cross-sectional view of the tablet compression connection provided in some embodiments of this application;
[0020] Figure 4 This is a schematic diagram of the M.2 module replacement process provided in some embodiments of this application;
[0021] Figure 5 This is a schematic diagram of the M.2 module connection provided in some embodiments of this application.
[0022] The markings in the attached diagram are as follows:
[0023] 20: PCB assembly
[0024] 21: Development board base plate
[0025] 22: Connector
[0026] 23: M.2 Module
[0027] 24: Tableting
[0028] 25: Patch nut
[0029] 26: Matching screws
[0030] 241: Groove
[0031] 242: Card slot
[0032] 243: Center rod
[0033] 244: Screw hole Detailed Implementation
[0034] In related technologies, to meet the usage requirements of different M.2 modules and reduce the risk of board modification, it is necessary to reserve space on the development board during the initial design phase. Figure 1 The different positions of the surface mount nuts shown are used to install M.2 modules of corresponding sizes. However, M.2 modules come in many sizes, and when changing to different sizes of M.2 modules during development board usage, the positions of the nuts on the development board need to be changed to secure the module. The existing design, by reserving multiple nut positions, occupies layout space on the development board, affecting hardware placement and wiring, and also increases production costs and reduces the aesthetics of the development board.
[0035] Based on this, this application provides a PCB assembly, which relates to a pressing structure suitable for connecting and fixing M.2 series modules and development boards. It can reduce the number of nuts on the development board base plate, facilitate wiring, and reduce modifications to the development board for different models of M.2 modules, thereby improving the versatility of M.2 modules and saving costs.
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the various embodiments of this application will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been presented in the various embodiments of this application to enable readers to better understand this application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in this application can be implemented. The division of the various embodiments below is for the convenience of description and should not constitute any limitation on the specific implementation of this application. The various embodiments can be combined with and referenced by each other without contradiction.
[0037] For ease of description, in the context of this specification, when an element is referred to as being "on" another element, it can be directly on the other element or indirectly on the other element if one or more intermediate elements are inserted therebetween. Furthermore, in the context of this specification, when an element is referred to as being "connected," "joined," or "attached" to another element, it can be directly connected, joined, or attached to the other element or indirectly connected, joined, or attached to the other element if one or more intermediate elements are inserted therebetween. Additionally, when an element is referred to as being "engaged" to another element, it can be directly engaged or in contact with the other element, or indirectly engaged or in contact with the other element if one or more intermediate elements are inserted therebetween.
[0038] like Figure 2 As shown in some embodiments of this application, a PCB assembly 20 includes a development board base plate 21, a connector 22, an M.2 module 23, a pressure plate 24, a surface mount nut 25, and matching screws 26. The connector 22 and the surface mount nut 25 are attached to the development board base plate 21. The gold finger end of the M.2 module 23 is connected to the connector 22. The screw hole end of the M.2 module 23 is connected to the pressure plate 24. The pressure plate 24 and the surface mount nut 25 are fixed to the development board base plate 21 by matching screws 26.
[0039] A development board is a circuit board used for embedded system development. It consists of input devices, output devices, memory, data paths / buses, a central processing unit, and external resource interfaces. In the embodiments of this application, the development board baseboard 21 is the underlying hardware platform, providing a basic interface such as UART, SPI, I2C, etc., and can be expanded as needed. In the embodiments of this application, connectors 22 and surface mount nuts 25 are attached to the development board baseboard 21.
[0040] In an optional embodiment, the connector 22 and the patch nut 25 are soldered to the development board base plate 21, using metal solder to mechanically and electrically connect the two metal surfaces. The solder-secured connection prevents the connector 22 and patch nut 25 from loosening due to vibration or other mechanical forces. Soldering the connector 22 and patch nut 25 to the development board base plate 21 also ensures electrical continuity, allowing uninterrupted electronic signals to pass through the connection and ensuring electrical continuity between the M.2 module 23 and the development board base plate 21.
[0041] In an optional embodiment, the connection between the connector 22 and the development board base plate 21 can also be a connection method other than soldering, which is not limited in this application.
[0042] The patch nut 25 is matched with the matching screw 26 to fasten the pressure plate 24 onto the development board base plate 21.
[0043] When one end of the M.2 module 23 is connected to the development board base plate 21, the gold finger end of the M.2 module 23 is connected to the connector 22. The connector 22 has a specific slot for accommodating the gold finger end of the M.2 module 23. Electrical connection between the M.2 module 23 and the development board base plate 21 is achieved through the connection between the gold finger end and the connector 22. However, other connection methods can also be used between the M.2 module 23 and the connector 22, and no limitation is imposed here.
[0044] In one embodiment of this application, the connector 22 is provided with a PCI slot, into which the gold fingers of the M.2 module 23 can be inserted. The PCI slot is an expansion slot based on the PCI (Peripheral Component Interconnect) component expansion interface. It is generally off-white in color and located below the AGP slot and above the ISA slot on the motherboard. Its bit width is 32-bit or 64-bit, its operating frequency is 33MHz, and its maximum data transfer rate is 133MB / sec (32-bit) and 266MB / sec (64-bit). It can accommodate sound cards, network cards, built-in modems, built-in ADSL modems, USB 2.0 cards, IEEE 1394 cards, IDE interface cards, RAID cards, TV cards, video capture cards, and many other expansion cards. The PCI slot is the main expansion slot on the motherboard; by inserting different expansion cards, various functions achievable by the development board can be obtained.
[0045] The screw hole end of the M.2 module 23 is connected to the pressure plate 24 to fasten the M.2 module 23 to the development board.
[0046] In the embodiments of this application, the connection between the screw hole end of the M.2 module 23 and the pressure plate 24 can be a plug-in connection or a snap-fit connection. As long as the screw hole end of the M.2 module is fastened to the pressure plate, the specific connection method is not limited here.
[0047] In the embodiments of this application, the screw hole end of the M.2 module 23 can be the opposite end of the gold finger end of the M.2 module, or it can be the adjacent end of the gold finger end of the M.2 module 23, and there is no limitation here.
[0048] In one embodiment of this application, the M.2 module 23 communicates with the development board baseboard 21 via the connector 22. Signals from the M.2 module 23 are transmitted to a signal receiver via the development board baseboard 21.
[0049] In one embodiment of this application, such as Figure 3 As shown, one end of the pressure plate 24 is provided with a groove 241, and a screw hole 244 is provided on the pressure plate 24 at a position directly opposite to the groove 241. Figure 4As shown, the groove 241 of the pressure plate 24 is used to accommodate the surface mount nut 25. When fixing the pressure plate 24, the screw of the matching screw 26 passes through the screw hole 244 of the pressure plate 24, through the groove 241 of the pressure plate 24, and is fastened to the surface mount nut 25. The thickness of the groove 241 of the pressure plate 24 can be adapted to the thickness of a common surface mount nut. By providing a groove on the pressure plate 24, space is reserved for the surface mount nut, allowing for a seamless fit between the pressure plate structure and the development board base plate. This avoids gaps between the pressure plate structure and the development board base plate due to the surface mount nut, increasing the aesthetics of the PCB assembly.
[0050] In one embodiment of this application, such as Figure 3 As shown, the other end of the pressure plate 24 is provided with a slot 242, through which the screw hole end of the M.2 module 23 is inserted and connected to the pressure plate. Different models of M.2 modules have different widths and heights of their screw hole ends. The thickness and height of the slot on the pressure plate 24 are adapted to the corresponding M.2 module to accommodate different models. By providing a slot on the pressure plate 24, the screw hole end of the M.2 module 23 can be securely connected to the pressure plate, ensuring the stability of the M.2 module 23 and simplifying the connection complexity between the M.2 module and the pressure plate.
[0051] In one embodiment of this application, the connection between the pressing plate 24 and the pressing plate 23 can also be in other ways, such as a snap-fit connection.
[0052] In one embodiment of this application, the pressure plate 24 is provided with a central rod, which connects the center of the patch nut to the center of the screw hole of the M.2 module, and is used to connect the slot 242 and the groove 241 of the pressure plate 24. The length of the central rod of the pressure plate 24 is called the center distance, and the length of the center distance is set to correspond to different models of M.2 modules to adapt to M.2 modules of different lengths.
[0053] In the embodiments of this application, the adaptation relationship between the structure of the tablet 24 and the M.2 module 23 can also be achieved in other ways. The structure of the tablet 24 can be customized to correspond with the M.2 module, and there is no limitation here.
[0054] Specifically, when installing the M.2 module 23 onto the PCB assembly, the gold finger end of the M.2 module 23 is inserted into the connector 22, and the M.2 module 23 is secured to the development board base plate 21 via a clamping plate at the screw hole end of the M.2 module 23. Figure 4As shown, insert the screw hole end of the M.2 module 23 into the slot 242 of the pressure plate 24, pass the matching screw 26 through the screw hole 244 of the pressure plate 24, and connect it to the patch nut to complete the installation. It is simple and convenient.
[0055] Conversely, when replacing different models of the M.2 module, such as Figure 5 As shown, the original M.2 module is model 3052. When replacing it with a model 3042 M.2 module, the pressure plate corresponding to the Type 3052 module should be replaced with the pressure plate corresponding to the Type 3042 module. This allows for the replacement of different models of M.2 modules without changing the development board.
[0056] In a specific implementation, the thickness of the screw hole end of each M.2 module model is different, and the corresponding clamping plate groove height corresponds to the thickness of the screw hole end of the M.2 module. The length of each M.2 module model may also be different, in which case the center distance of the corresponding clamping plate corresponds to the length of the M.2 module. This allows for the replacement of the M.2 module without changing the nuts on the development board's base plate.
[0057] In this embodiment of the invention, the M.2 module is fixed to the client terminal development board base plate by a pressure plate, eliminating the need for redundant nuts, reducing the space of the development board base plate, simplifying the wiring structure, saving production costs, and improving aesthetics. The gold finger end of the M.2 module is connected to the connector, and the screw hole end of the M.2 module is connected to the pressure plate. Gently pressing down makes the pressure plate contact the patch nut and tighten the screw, making installation convenient. When replacing different models of M.2 modules, only the corresponding pressure plate needs to be replaced, realizing the replacement of different models of M.2 modules without modifying the development board.
[0058] Some embodiments of this application provide an electronic device, including a power module and a PCB assembly as described in the above embodiments, wherein the power module is connected to the PCB assembly and supplies power to the PCB assembly.
[0059] Those skilled in the art will understand that the above embodiments are specific implementations of this application, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this application.
[0060] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, achieving the same performance or use, should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and modifications can be made herein without departing from the protection scope of the patent application.
Claims
1. A PCB assembly, characterized in that, This includes the development board baseplate, connectors, M.2 modules, pressure plates, surface mount nuts, and matching screws, among which: The connector and the patch nut are attached to the bottom plate of the development board; The gold finger end of the M.2 module is connected to the connector; The screw hole end of the M.2 module is connected to the pressure plate; The pressure plate and the patch nut are fixed to the base plate of the development board by matching screws.
2. The PCB assembly according to claim 1, characterized in that: The M.2 module communicates with the development board baseboard via the connector.
3. The PCB assembly according to claim 1, characterized in that: One end of the pressure plate is provided with a groove for accommodating the matching screw; The hole end on the pressure plate that is adapted to the matching screw is directly opposite the groove, and the matching screw is connected to the patch nut through the hole end.
4. The PCB assembly according to claim 1, characterized in that: The tablet press is provided with a slot; The screw hole end of the M.2 module is connected to the pressure plate through the slot.
5. The PCB assembly according to claim 4, characterized in that: The width and height of the card slot are set to correspond to different models of M.2 modules.
6. The PCB assembly according to claim 1, characterized in that: The pressure plate is provided with a central rod, which connects the center of the patch nut to the center of the screw hole of the M.2 module.
7. The PCB assembly according to claim 6, characterized in that: The length of the central rod is the center distance; The length of the center rod is set to correspond to different models of M.2 modules.
8. The PCB assembly according to claim 1, characterized in that: The connector is connected to the development board base plate by welding.
9. The PCB assembly according to claim 1, characterized in that: The patch nuts and matching screws are provided in pairs.
10. An electronic device, characterized in that: Includes a power module and a PCB assembly as described in any one of claims 1 to 9; The power module is connected to the PCB assembly and supplies power to the PCB assembly.