WO2023155455A1

WO2023155455A1 - M.2 ssd expansion module and electronic device

Info

Publication number: WO2023155455A1
Application number: PCT/CN2022/125846
Authority: WO
Inventors: 刘明羽; 张垲; 张恩朝
Original assignee: 南昌华勤电子科技有限公司
Priority date: 2022-02-18
Filing date: 2022-10-18
Publication date: 2023-08-24
Also published as: CN114389067A

Abstract

An M.2 SSD expansion module and an electronic device. The expansion module comprises a circuit board, an M.2 connector, and a conversion chip. The circuit board is provided with a USB interface. The USB interface is configured to be inserted into a USB socket on a motherboard. The M.2 connector is electrically connected to the circuit board. The M.2 connector is configured to allow for insertion of an M.2 SSD. The conversion chip is electrically connected to the circuit board. By means of switching of the circuit board, the conversion chip is electrically connected to the USB interface and the M.2 connector, respectively. The conversion chip is used for converting a USB signal of the USB interface into an M.2 signal of the M.2 connector to transmit to the M.2 connector and convert the M.2 signal of the M.2 connector into a USB signal of the USB interface to transmit to the USB interface. The present invention can expand an external M.2 SSD when an M.2 connector is not reserved in an electronic device.

Description

M.2 SSD expansion module and electronic equipment

This application claims the priority of the Chinese patent application with the application number 202210154214.9 and the title of the invention "M.2 SSD expansion module and electronic equipment" submitted to the China Patent Office on February 18, 2022, the entire contents of which are hereby incorporated by reference In this application.

technical field

The present invention relates to the field of M.2 SSD technology, in particular to an M.2 SSD expansion module and electronic equipment.

Background technique

In the conventional design of personal computers, servers or storage devices, the USB socket is generally reserved in the design, while the M.2 connector is designed according to the requirements. When the M.2 connector is not reserved, it cannot Expand M.2 SSD peripherals.

Therefore, it is necessary to provide an M.2 SSD expansion module, which can expand M.2 SSD peripherals when the electronic device does not reserve an M.2 connector.

Contents of the invention

The purpose of the present invention is to provide an M.2 SSD expansion module, which can expand M.2 SSD peripherals when the electronic device does not reserve an M.2 connector.

Another object of the present invention is to provide an electronic device capable of expanding M.2 SSD peripherals when no M.2 connector is reserved.

In order to achieve the above object, the present invention provides an M.2 SSD expansion module, including a circuit board, an M.2 connector and a conversion chip, the circuit board is provided with a USB interface, and the USB interface is configured to communicate with the motherboard The M.2 connector is electrically connected to the circuit board, and the M.2 connector is configured to be plugged into the M.2 SSD; the conversion chip is electrically connected to the On the circuit board, through the transfer of the circuit board, the conversion chip is electrically connected to the USB interface and the M.2 connector, and the conversion chip is used to convert the USB interface The USB signal is converted into the M.2 signal of the M.2 connector for transmission to the M.2 connector and the M.2 signal of the M.2 connector is converted into the USB signal of the USB interface for transmission to the M.2 connector. transmitted to the USB interface.

Optionally, one end of the circuit board is configured as a first seat of a USB interface, and a row of USB gold fingers is arranged on the first seat.

Optionally, the USB interface further includes a second seat body, the second seat body is fixed on the rear side of the first seat body, and the second seat body is provided with a A row of USB terminals on the rear side, the USB terminals are respectively electrically connected to corresponding positions of the circuit board.

Optionally, the USB interface further includes a USB metal shell, and the USB metal shell is sleeved on the first base and the second base.

Optionally, the M.2 connector includes a housing and several M.2 terminals arranged on the housing, the housing is provided with an insertion slot, and the insertion direction of the insertion slot is the same as that of the M.2 terminal. The circuit boards are parallel to each other, and several M.2 terminals are electrically connected to the circuit boards and partly extend into the socket slots.

Optionally, the M.2 SSD peripheral expansion module further includes an M.2 SSD, and the M.2 SSD includes a main body and an insertion portion connected to one end of the main body, and the insertion portion There are several M.2 golden fingers, the socket part is detachably plugged into the socket slot, the several M.2 golden fingers are in corresponding contact with the several M.2 terminals, and the main body part and parallel to the circuit board.

Optionally, the end of the circuit board away from the M.2 connector is provided with a first installation hole, the end of the main body away from the socket is provided with a second installation hole, and the first installation hole It corresponds to the second mounting hole and cooperates with a fastener to fix the M.2 SSD to the circuit board.

Optionally, the M.2 connector is arranged at an end of the circuit board close to the USB interface, and the M.2 connector and the USB interface have an opposite insertion direction.

Optionally, the conversion chip includes a voltage conversion chip and a protocol conversion chip, the voltage conversion chip is used to convert the voltage signal of the USB interface and the voltage signal of the M.2 connector to each other, the protocol The conversion chip is used for mutual conversion between the USB protocol and the SATA protocol.

In order to achieve the above another object, the present invention provides an electronic device, including a main board and the above-mentioned M.2 SSD expansion module, the USB interface of the M.2 SSD expansion module can be detachably plugged into the the USB socket on the motherboard.

In the embodiment of the present invention, the M.2 SSD expansion module is provided with a USB interface on the circuit board for plugging into the USB socket on the motherboard and an M.2 connector for plugging in the M.2 SSD, and uses Electrically connected to the conversion chip on the circuit board to realize the mutual conversion between the USB signal of the USB interface and the M.2 signal of the M.2 connector, and then can use the USB interface and the USB socket on the motherboard to realize the M. 2 The expansion of SSD peripherals solves the problem that M.2 SSD peripherals cannot be expanded when there is no M.2 connector reserved on the motherboard.

Description of drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the M.2 SSD expansion module of the embodiment of the present invention.

Figure 2 is a schematic diagram of the three-dimensional structure of the M.2 SSD expansion module in Figure 1 from another perspective.

Figure 3 is a schematic diagram of the three-dimensional structure of the M.2 SSD expansion module in Figure 1 after hiding the M.2 SSD and the USB metal shell.

Figure 4 is a schematic diagram of the exploded structure of the M.2 SSD and the M.2 connector in Figure 1.

Figure 5 is a schematic diagram of the three-dimensional structure of the M.2 SSD expansion module in Figure 1 from another perspective.

Fig. 6 is a schematic diagram of an exploded structure of the nut and the screw in Fig. 2 .

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 to FIG. 5 , the embodiment of the present invention discloses an M.2 SSD expansion module for detachably plugging into a USB socket on a main board (not shown) of an electronic device. The M.2 SSD expansion module includes a circuit board 1, an M.2 connector 2 and a conversion chip 3. The circuit board 1 is provided with a USB interface 4, and the USB interface 4 is configured to be plugged into a USB socket on the main board; M. 2 The connector 2 is electrically connected to the circuit board 1, and the M.2 connector 2 is configured to be inserted into the M.2 SSD 5; the conversion chip 3 is electrically connected to the circuit board 1, and the conversion chip 3 is Then, the conversion chip 3 is electrically connected with the USB interface 4 and the M.2 connector 2 respectively, and the conversion chip 3 is used to convert the USB signal of the USB interface 4 into the M.2 signal of the M.2 connector 2 for transmission to the M. .2 Connector 2 and convert M.2 signal of M.2 connector 2 to USB signal of USB interface 4 for transmission to USB interface 4. Specifically, the USB interface 4 may be, but not limited to, a USB Type A interface.

In the embodiment of the present invention, the M.2 SSD expansion module is provided with a USB interface 4 on the circuit board 1 for plugging in with the USB socket on the main board and an M.2 connector for plugging in the M.2 SSD 5 2, and use the conversion chip 3 electrically connected on the circuit board 1 to realize the mutual conversion between the USB signal of the USB interface 4 and the M.2 signal of the M.2 connector 2, and then can use the USB interface 4 and the motherboard The USB socket on the motherboard realizes the expansion of M.2 SSD 5 peripherals, which solves the problem that M.2 SSD 5 peripherals cannot be expanded when there is no M.2 connector 2 reserved on the motherboard.

Please refer to FIG. 3 and FIG. 5 , in some embodiments, one end of the circuit board 1 is configured as a first seat 41 of the USB interface 4 , and a row of USB golden fingers 42 is disposed on the first seat 41 . Since the first seat body 41 of the USB interface 4 and a row of USB golden fingers 42 are directly formed on the circuit board 1, the structure and process are simple, and it is beneficial to ensure the reliability of signal transmission.

Specifically, the USB interface 4 also includes a second base body 43, which is fixed on the rear side of the first base body 41, and is provided with a row of sockets located on the rear side of the USB golden finger 42 on the second base body 43. The USB terminal 44 is electrically connected to the corresponding position of the circuit board 1 (it may be the position where the first base body 41 is located, or it may be the position behind the first base body 41 ). Specifically, a plurality of welding pads (not shown) corresponding to each USB terminal 44 are formed on the circuit board 1 so that each USB terminal 44 is electrically connected to the circuit board 1 and the internal circuit of the circuit board 1 is used to realize and convert Signal transmission between chips 3.

The embodiment of the present invention utilizes the end of the circuit board 1 to construct the first seat body 41 and the USB gold finger 42 of the USB interface 4, and forms the rear USB terminal 44 of the USB interface 4 on the special second seat body 43, which can Making full use of the structure of the circuit board 1 to construct the USB interface 4 is beneficial to reduce the processing difficulty of the USB interface 4 .

Specifically, the USB interface 4 further includes a USB metal shell 45 , and the USB metal shell 45 is socketed on the first seat body 41 and the second seat body 43 . It can be understood that the USB metal shell 45 is not an essential structure, and in other embodiments, the USB metal shell 45 may not be included.

Certainly, the USB interface 4 in the embodiment of the present invention is not limited to the above formation manner.

Please refer to FIGS. 1 to 6. In some embodiments, the M.2 connector 2 includes a housing 21 and a number of M.2 terminals 22 disposed on the housing 21. The housing 21 is provided with an insertion slot 211 for insertion into the housing 21. The insertion direction of the socket 211 is parallel to the circuit board 1 , and a plurality of M.2 terminals 22 are electrically connected to the circuit board 1 and partly extend into the socket 211 . Specifically, a plurality of pads (not shown) corresponding to each M.2 terminal 22 are formed on the circuit board 1 so that each M.2 terminal 22 is electrically connected to the circuit board 1 and utilizes the internal circuit of the circuit board 1 Realize signal transmission with the conversion chip 3 . Since the M.2 connector 2 is formed with the insertion slot 211 parallel to the circuit board 1, when the M.2 SSD 5 is plugged into the insertion slot 211, it can be stacked parallel to the circuit board 1, which is conducive to stability The connection can save space.

Please refer to Figure 3. Specifically, the M.2 SSD peripheral expansion module also includes an M.2 SSD 5, and the M.2 SSD 5 includes a main body 51 and an insertion portion 52 connected to one end of the main body 51. The insertion portion 52 is provided with a number of M.2 gold fingers 53, the socket part 52 is detachably plugged into the socket slot 211, a number of M.2 gold fingers 53 are in corresponding contact with a number of M.2 terminals 22, and the main body 51 is in contact with the circuit Plates 1 are stacked in parallel. More specifically, the main body 51 and the circuit board 1 may be attached to each other, or may be spaced apart from each other, or partly in contact, partly spaced apart, etc., which is not limited by the present invention.

Please refer to FIG. 2 and FIG. 4 , further, the end of the circuit board 1 away from the M. The first mounting hole 15 corresponds to the second mounting hole 511 and cooperates with the fastener to fix the M.2 SSD 5 to the circuit board 1. By the cooperation of the fastener with the first mounting hole 15 and the second mounting hole 511, the M.2 SSD 5 can be firmly combined with the circuit board 1, thereby ensuring that the M.2 SSD 5 is plugged into the M.2 connector 2 reliability.

Referring to Fig. 2 and Fig. 6, exemplary, fastener comprises screw 6 and nut 7, and screw 6 comprises threaded shank 61 and head 62, and its threaded shank 61 passes through second mounting hole 511 and first mounting hole 511. Hole 15, its head 62 abuts on M.2 SSD 5; Nut 7 includes column 71 and head 72, and its column 71 is provided with threaded hole 711 and extends into first installation hole 15, threaded rod 61 The threaded connection is in the threaded hole 711 , and its head 72 abuts against the circuit board 1 . Specifically, the threaded hole 711 may pass through the head 72 of the nut 7 . Through the cooperation of the screw 6, the nut 7, the first mounting hole 15 and the second mounting hole 511, the M.2 SSD 5 can be firmly combined with the circuit board 1.

Please refer to FIG. 1 and FIG. 3 , in some embodiments, the M.2 connector 2 is arranged on the end of the circuit board 1 close to the USB interface 4, and the M.2 connector 2 and the USB interface 4 have opposite insertion directions, namely The opening direction of the insertion slot 211 of the M.2 connector 2 is set facing away from the USB interface 4 . Since the M.2 connector 2 is arranged close to the USB interface 4 and has an opposite insertion direction to the USB interface 4, it is not only convenient for the wiring of the circuit board 1, but also convenient for stacking the M.2 SSD 5 on the circuit board 1. Of course, the present invention is not limited to the above arrangement.

Please refer to FIG. 5, in some embodiments, the conversion chip 3 includes a voltage conversion chip 3a and a protocol conversion chip 3b, and the voltage conversion chip 3a is used to convert the voltage signal (5V) of the USB interface 4 to the voltage of the M.2 connector 2 The signal (3.3V) is converted to each other, and the protocol conversion chip 3b is used to convert the USB protocol and the SATA protocol to each other. By means of the voltage conversion of the voltage conversion chip 3a and the protocol conversion of the protocol conversion chip 3b, it is convenient to realize the M.2 signal and USB signal conversion. Of course, the voltage conversion function and the protocol conversion function can also be set on the same chip, which is not limited here.

Specifically, the voltage conversion chip 3a and the protocol conversion chip 3b are respectively provided with several pins (not shown in the figure), and the circuit board 1 is provided with pads corresponding to each pin (not shown in the figure), and the several pins are connected to some solder pads. The disks are correspondingly welded, and then the electrical connection with the M.2 connector 2 and the USB interface 4 can be realized by switching the internal circuit of the circuit board 1 .

Please refer to FIG. 1 to FIG. 5 , the present invention also discloses an electronic device, including a main board and the above-mentioned M.2 SSD expansion module, and the USB interface 4 of the M.2 SSD expansion module is detachably plugged in The USB socket on the motherboard.

What is disclosed above is only a preferred embodiment of the present invention, and of course it cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the patent scope of the present invention still fall within the scope of the present invention.

Claims

A kind of M.2 SSD expansion module is characterized in that, comprises circuit board, M.2 connector and conversion chip,

The circuit board is provided with a USB interface, and the USB interface is configured to be plugged into a USB socket on the main board;

The M.2 connector is electrically connected to the circuit board, and the M.2 connector is configured to be inserted into an M.2 SSD;

The conversion chip is electrically connected to the circuit board, and through the transfer of the circuit board, the conversion chip is electrically connected to the USB interface and the M.2 connector respectively, and the conversion chip For converting the USB signal of the USB interface into the M.2 signal of the M.2 connector for transmission to the M.2 connector and converting the M.2 signal of the M.2 connector into The USB signal of the USB interface is transmitted to the USB interface.
The M.2 SSD peripheral expansion module according to claim 1, wherein one end of the circuit board is configured as a first seat of a USB interface, and a row of USB ports is arranged on the first seat. Goldfinger.
The M.2 SSD peripheral expansion module according to claim 2, wherein the USB interface further includes a second seat, and the second seat is fixed on the rear side of the first seat On the second seat body, a row of USB terminals located at the rear side of the USB golden finger is provided, and the USB terminals are respectively electrically connected to corresponding positions of the circuit board.
The M.2 SSD peripheral expansion module according to claim 2 or 3, wherein the USB interface further includes a USB metal shell, and the USB metal shell is socketed between the first base and the Second body.
The M.2 SSD peripheral expansion module according to claim 1, wherein the M.2 connector includes a housing and several M.2 terminals arranged on the housing, and the housing is An insertion slot is provided, and the insertion direction of the insertion slot is parallel to the circuit board. Several M.2 terminals are electrically connected to the circuit board and partly extend into the insertion slot.
The M.2 SSD peripheral expansion module according to claim 5, further comprising an M.2 SSD, the M.2 SSD comprising a main body and a socket connected to one end of the main body, There are several M.2 gold fingers on the socket part, and the socket part is detachably plugged into the socket slot, and several M.2 gold fingers correspond to several M.2 terminals. In contact, the main body is stacked parallel to the circuit board.
The M.2 SSD peripheral expansion module according to claim 6, characterized in that, the end of the circuit board away from the M.2 connector is provided with a first installation hole, and the main body is away from the socket. One end of the connecting portion is provided with a second mounting hole, the first mounting hole corresponds to the second mounting hole and cooperates with a fastener to fix the M.2 SSD to the circuit board.
The M.2 SSD peripheral expansion module according to claim 1, wherein the M.2 connector is arranged at one end of the circuit board close to the USB interface, and the M.2 connector is connected to the USB interface. The USB interface has opposite insertion directions.
The M.2 SSD peripheral expansion module according to claim 1, wherein the conversion chip includes a voltage conversion chip and a protocol conversion chip, and the voltage conversion chip is used to convert the voltage signal of the USB interface to the protocol conversion chip. The voltage signals of the M.2 connector are mutually converted, and the protocol conversion chip is used for mutual conversion of the USB protocol and the SATA protocol.
An electronic device, characterized in that it includes a motherboard and an M.2 SSD expansion module according to any one of claims 1 to 9, the USB interface of the M.2 SSD expansion module can be detachably plugged into the the USB socket on the motherboard.