CN224178372U

CN224178372U - A PCB assembly and electronic device

Info

Publication number: CN224178372U
Application number: CN202423321046.1U
Authority: CN
Inventors: 周伟凡
Original assignee: Shanghai Simcom Wireless Solutions Co Ltd
Current assignee: Shanghai Simcom Wireless Solutions Co Ltd
Priority date: 2024-12-31
Filing date: 2024-12-31
Publication date: 2026-04-28
Anticipated expiration: 2034-12-31

Abstract

This application relates to the field of tool technology and discloses a PCB assembly and electronic device, 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. The PCB assembly of this application is suitable for connecting and fixing M.2 series modules of different sizes to development boards, reducing modifications to the development board, improving the versatility of the M.2 module, reducing redundant nuts, saving costs, and improving the applicability and aesthetics of the PCB assembly.

Description

PCB assembly and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of wireless transmission terminals, in particular to a PCB assembly and electronic equipment.

Background

PCB (printed circuit board) is a printed circuit board, which is called a printed board for short, and is one of important components in the electronic industry. Almost every electronic device, as small as an electronic watch, a calculator, as large as a computer, a communication electronic device, a military weapon system, has only electronic components such as an integrated circuit, and a printed board is used for electrically interconnecting the respective components. The printed circuit board consists of an insulating base plate, connecting wires and bonding pads for assembling and welding electronic elements, and has the dual functions of a conductive circuit and the insulating base plate. The wiring device can replace complex wiring, realizes electric connection among elements in a circuit, simplifies assembly and welding work of electronic products, reduces wiring workload in a traditional mode, greatly reduces labor intensity of workers, reduces the whole volume, lowers the product cost, and improves the quality and reliability of electronic equipment. The printed circuit board has good product consistency, can adopt standardized design, and is favorable for realizing mechanization and automation in the production process. Meanwhile, the whole printed circuit board subjected to assembly and debugging can be used as an independent spare part, so that the whole machine product can be conveniently exchanged and maintained. At present, the printed wiring board has been extremely widely applied to the production and manufacture of electronic products.

M.2 is a new transport interface standard specification, originally referred to as NGFF (Next Genereation Form), established by the PCI-SIG and SATA-IO standards organizations, and subsequently renamed as M.2.M.2 can support SATA, USB and PCIe interfaces, has the advantages of different standard specifications of appearance size and high transmission speed, and is suitable for various expansion cards, such as Solid State Disks (SSD), WIFI, bluetooth (BT), near Field Communication (NFC) and the like.

M.2 modules have a variety of dimensional specifications. It can support expansion, contraction and integration of multiple functions into a single form factor module solution. At present, in order to meet the use requirements of different M.2 modules, the risk of board change is reduced, at the initial stage of designing and developing a board, patch nuts at different positions are required to be reserved on the developing board for installing M.2 modules with corresponding specifications, and when the M.2 modules with different sizes are replaced in the process of using the developing board, the positions of the nuts on the developing board are required to be changed to achieve the purpose of fixing the modules.

Disclosure of utility model

The application aims to provide a PCB assembly and electronic equipment, which are suitable for connection and fixation between M.2 series modules with different sizes and a development board, can reduce layout space of the development board, facilitate wiring, improve universality of the M.2 modules, save cost and improve attractiveness of the development board.

In order to solve the technical problems, the embodiment of the application provides a PCB assembly, which comprises a development board bottom plate, a connector, an M.2 module, a pressing sheet, a patch nut and a matched screw, wherein the connector and the patch nut are attached to the development board bottom plate, a golden finger end of the M.2 module is connected with the M.2 connector, a screw hole end of the M.2 module is connected with the pressing sheet, and the pressing sheet and the patch nut are fixed on the development board bottom plate through the matched screw.

In some embodiments, the m.2 module communicates with the development board chassis through a connector.

In some embodiments, the width and the height of the clamping groove are set corresponding to m.2 modules of different models.

In some embodiments, the pressing piece is provided with a clamping groove, and the screw hole end of the M.2 module is connected with the pressing piece in a plugging manner through the clamping groove.

In some embodiments, the press piece is provided with a center distance from the center of the patch nut to the center of the screw hole of the m.2 module.

In some embodiments, the length of the center pole corresponds to different models of m.2 modules.

In some embodiments, the connector is connected to the development board base by means of welding.

In some embodiments, the patch nut and the mating screw are provided in pairs.

The utility model also provides electronic equipment, which comprises a power module and the PCB assembly of any embodiment, wherein the power module is connected with the PCB assembly to supply power for the PCB assembly.

According to the PCB assembly provided by the embodiments of the application, the M.2 module is fixed on the development board bottom board of the client terminal through the pressing piece, redundant nuts are not needed, the space of the development board bottom board is reduced, the wiring structure is simplified, meanwhile, the production cost is saved, the attractiveness is improved, the golden finger end of the M.2 module is connected with the connector, the screw hole end of the M.2 module is connected with the pressing piece, the pressing piece is contacted with the patch nut by downward light pressure, the screw is locked, the installation is convenient, and when the M.2 modules of different types are replaced, the replacement of the M.2 modules of different types can be realized only by correspondingly replacing the pressing piece, and the replacement of the M.2 modules of different types is realized under the condition that the development board is not changed.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic diagram of a development board substrate with an M.2 module in the related art;

Fig. 2 is a schematic diagram of a PCB assembly according to some embodiments of the present application;

FIG. 3 is a schematic cross-sectional view of a compression attachment provided in some embodiments of the present application;

FIG. 4 is a schematic illustration of an M.2 module replacement process according to some embodiments of the present application;

Fig. 5 is a schematic diagram of m.2 module connection according to some embodiments of the present application.

The various references in the drawings are as follows:

20 PCB assembly

Development of Board bottom Board

22 Connector

23:M.2 module

24 Tabletting

25 Paster nut

26 Matched screw

241 Groove

242 Clamping groove

243 Center pole

244 Screw hole

Detailed Description

In the related art, in order to meet the use requirements of different m.2 modules and reduce the risk of board modification, patch nuts at different positions as shown in fig. 1 need to be reserved on the development board for installing the m.2 modules with corresponding specifications in the initial stage of designing the development board. However, the m.2 series modules have a plurality of specifications and sizes, and when the m.2 modules with different sizes are replaced in the process of using the development board, the positions of nuts on the development board need to be changed to achieve the purpose of fixing the modules. The existing design mode occupies layout space of the development board because a plurality of nut positions are reserved, influences hardware ornaments and wiring, increases production cost and reduces ornamental value of the development board.

Based on the above, the embodiment of the application provides a PCB assembly, which relates to a tabletting structure, is suitable for connecting and fixing M.2 series modules and development boards, can reduce the number of nuts of the bottom board of the development boards, is convenient to wire, and aims at M.2 modules of different models, reduces the modification to the development boards, improves the universality of the M.2 modules and saves the cost.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. The claimed application may be practiced without these specific details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments can be mutually combined and referred to without contradiction.

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 be indirectly on the other element with one or more intervening elements interposed therebetween. Also, in the context of this specification, when an element is referred to as being "connected" or "coupled" or "attached" to another element, it can be directly connected or coupled or attached to the other element or be indirectly connected, coupled or attached to the other element with one or more intervening elements interposed therebetween. In addition, when an element is referred to as being "engaged" with another element, it can be directly engaged or contacted with the other element or be indirectly engaged or contacted with the other element with one or more intervening elements interposed therebetween.

As shown in fig. 2, the PCB assembly 20 provided in some embodiments of the present application includes a development board base 21, a connector 22, an m.2 module 23, a pressing sheet 24, a patch nut 25, and a mating screw 26, wherein the connector 22 and the patch nut 25 are attached to the development board base 21, a golden finger end of the m.2 module 23 is connected to the connector 22, a screw hole end of the m.2 module 23 is connected to the pressing sheet 24, and the pressing sheet 24 and the patch nut 25 are fixed on the development board base 21 by the mating screw 26.

The development board is a circuit board for developing an embedded system, and is composed of input equipment, output equipment, a memory, a data path/bus, a central processing unit, an external resource interface and the like. In the embodiment of the present application, the development board base 21 is an underlying hardware platform, and the development board base 21 can be expanded according to requirements for a base board that provides a basic interface, such as UART, SPI, I C, etc. In the embodiment of the present application, the development board base 21 is attached with a connector 22 and a patch nut 25.

In an alternative embodiment, the connector 22 and patch nut 25 are attached to the development board base 21 by soldering, and the two metal surfaces are mechanically and electrically connected using metal solder. The connector 22 and patch nut 25 are not loosened by vibration or other mechanical forces due to the use of a solder-fixed connection. The connector 22 and the patch nut 25 and the development board base plate are welded to the development board base plate 21, and electrical continuity can be ensured so that an electronic signal can pass through the connection without interruption, ensuring electrical continuity between the m.2 module 23 and the development board base plate 21.

In an alternative embodiment, the connection relationship between the connector 22 and the development board base 21 may be a connection other than welding, which is not limited in the present application.

The patch nut 25 is configured to mate with the mating screw 26, and is used to fasten the pressing piece 24 to the development board base 21.

When one end of the m.2 module 23 is connected to the development board base 21, the golden finger end of the m.2 module 23 is connected to the connector 22, and the connector 22 has a specific groove for accommodating the golden finger end of the m.2 module 23, and the golden finger end is connected to the connector 22 to realize the electrical connection between the m.2 module 23 and the development board base 21. The connection between the m.2 module 23 and the connector 22 may be other connection, which is not limited herein.

In one embodiment of the present application, the connector 22 is provided with a PCI slot, and the golden finger end of the m.2 module 23 can be inserted into the PCI slot on the connector 22. The PCI slot is an expansion slot based on the PCI local bus (PERIPHERAL COMPONENT INTERCONNECTION) component expansion interface. The color is generally milky white and is positioned below the AGP slot and above the ISA slot on the motherboard. The bit width is 32 bits or 64 bits, the operating frequency is 33MHz, and the maximum data transmission rates are 133MB/sec (32 bits) and 266MB/sec (64 bits). Can be inserted with sound card, network card, built-in Modem, built-in ADSL Modem, USB2.0 card, IEEE1394 card, IDE interface card, RAID card, TV card, video acquisition card and other various expansion cards. The PCI slot is a main expansion slot of the main board, and multiple functions which can be realized by the development board can be obtained by inserting different expansion cards.

The screw hole end of the m.2 module 23 is connected to a pressing piece 24 to fasten the m.2 module 23 to the development board.

In the embodiment of the present application, the connection manner between the screw hole end of the m.2 module 23 and the pressing piece 24 may be a plugging manner or a fastening manner, so long as the screw hole end of the m.2 module is fastened to the pressing piece, and the specific connection manner is not limited herein.

In the embodiment of the present application, the screw hole end of the m.2 module 23 may be the opposite end of the golden finger end of the m.2 module 23 or the adjacent end of the golden finger end of the m.2 module 23, which is not limited herein.

In one embodiment of the application, the m.2 module 23 communicates with the development board chassis 21 through the connector 22. The signals of the m.2 module 23 are transmitted to a signal receiving terminal through the development board chassis 21.

In one embodiment of the present application, as shown in fig. 3, a groove 241 is formed at one end of the pressing piece 24, and a screw hole 244 is formed on the pressing piece 24 opposite to the groove 241. As shown in fig. 4, the recess 241 of the pressing piece 24 is configured to receive the patch nut 25, and when the pressing piece 24 is fixed, the screw of the mating screw 26 passes through the screw hole 244 of the pressing piece 24, passes through the recess 241 of the pressing piece 24, and is fastened to the patch nut 25. The thickness of the recess 241 of the preform 24 may be adapted to the thickness of a universal patch nut. Through set up the recess on preforming 24, for paster nut headspace for can seamless laminating at preforming structure and development board bottom plate, avoid because the paster nut leads to leaving the space between preforming structure and the development board bottom plate, increased PCB assembly's pleasing to the eye degree.

In one embodiment of the present application, as shown in fig. 3, the other end of the pressing piece 24 is provided with a clamping groove 242, and the screw hole end of the m.2 module 23 is connected with the pressing piece in a plugging manner through the clamping groove 242. The width and the height of the screw hole end of the M.2 modules with different models are different, and the thickness and the height of the clamping groove of the pressing sheet 24 are matched with the corresponding M.2 modules so as to adapt to the M.2 modules with different models. Through set up the draw-in groove on the preforming 24 for on the screw hole end of M.2 module 23 can be firm be connected to the preforming, ensure the stability of M.2 module 23, also simplified the connection complexity between M.2 module and the preforming simultaneously.

In one embodiment of the present application, the connection between the pressing piece 24 and the pressing piece 23 may be other connection, for example, a snap connection.

In one embodiment of the present application, the pressing piece 24 is provided with a central rod connecting the center of the patch nut to the center of the screw hole of the m.2 module, and a clamping groove 242 and a groove 241 for connecting the pressing piece 24. The length of the center rod of the pressing sheet 24 is called as a center distance, and the length of the center distance is correspondingly set with M.2 modules of different types so as to adapt to the M.2 modules of different lengths.

In the embodiment of the present application, the adaptation between the structure of the pressing sheet 24 and the m.2 module 23 may be implemented in other manners, and the structure of the pressing sheet 24 may be customized corresponding to the m.2 module, which is not limited herein.

Specifically, when the m.2 module 23 is mounted on the PCB assembly, the golden finger end of the m.2 module 23 is inserted into the connector 22, and at the screw hole end of the m.2 module 23, the m.2 module 23 is fastened to the development board base plate 21 by a pressing sheet, as shown in fig. 4, the screw hole end of the m.2 module 23 is inserted into the clamping groove 242 of the pressing sheet 24, and the mating screw 26 is inserted into the patch nut through the screw hole 244 of the pressing sheet 24, thereby completing the mounting.

On the contrary, when changing different models when M.2 module, as shown in FIG. 5, the model of former M.2 module is Type3052, changes the M.2 module of Type 3042 model, when changing Type3052 module into Type 3042 module, synchronous with the preforming that Type3052 module corresponds change for the preforming that Type 3042 module corresponds can, just so can realize accomplishing the change of different models M.2 module under the condition that does not change the development board.

In a specific embodiment, the thickness of the screw hole end of each model of the m.2 module is different, and the height of the clamping groove of the corresponding pressing piece corresponds to the thickness of the screw hole end of the m.2 module. The length of the M.2 module of each model is also possible to be different, and the center distance length of the corresponding pressing piece corresponds to the length of the M.2 module. Therefore, the M.2 module can be replaced without replacing the nut of the development board bottom plate.

In the embodiment of the utility model, the M.2 module is fixed on the development board bottom board of the client terminal through the pressing sheet, redundant nuts are not needed, the space of the development board bottom board is reduced, the wiring structure is simplified, meanwhile, the production cost is saved, the attractiveness is improved, the golden finger end of the M.2 module is connected with the connector, the screw hole end of the M.2 module is connected with the pressing sheet, the pressing sheet is contacted with the patch nut by downward light pressure, the screw is locked, the installation is convenient, and when the M.2 modules of different types are replaced, the replacement of the M.2 modules of different types can be realized only by correspondingly replacing the pressing sheet, and the replacement of the M.2 modules of different types is realized under the condition of not changing the development board.

Some embodiments of the application provide an electronic device comprising a power module and a PCB assembly as in the previous embodiments, the power module being coupled to the PCB assembly to power the PCB assembly.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the application and that various changes in form and details may be made therein without departing from the spirit and scope of the application.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several equivalent substitutions and obvious modifications can be made without departing from the spirit of the utility model, and the same should be considered to be within the scope of the utility model. In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "preferred embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Those skilled in the art may combine and combine the features of the different embodiments or examples described in this specification and of the different embodiments or examples without contradiction. Although embodiments of the present utility model and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the utility model as defined by the appended claims.

Claims

1. A PCB assembly, characterized in that it comprises a development board base plate, a connector, an M.2 module, a pressure plate, a surface mount nut, and matching screws, wherein:

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 nut and matching screw are provided in pairs.

10. An electronic device, characterized in that it comprises 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.