TWI889359B - M.2 solid-state hard drive quick plug-in device and its assembly structure - Google Patents

Abstract

The invention discloses an M.2 solid-state hard drive quick plug-in device and its assembly structure. The M.2 solid-state hard drive quick plug-in device mainly includes components such as a tray shell, a tray, an extractor, a tray cover and other components. The tray shell is inserted into the circuit board (motherboard) using its plug pins, so that a heat dissipation space is formed between the tray shell and the circuit board. The extractor is assembled at the rear end of the tray, one side of the tray is covered with the tray cover, and an M.2 solid-state drive and heat sink are installed in the hard drive storage space of the tray. This provides the user with a hand-held extractor to insert the tray into the tray housing so that the M.2 SSD can be plugged into the M.2 connector on the circuit board.On the contrary, the tray is also pulled out to separate the M.2 solid-state drive from the M.2 connector, thereby achieving the purpose of conveniently and quickly plugging and unplugging the M.2 solid-state drive and improving heat dissipation.

Description

M.2 solid state drive quick plug and unplug device and assembly structure thereof

The present invention relates to the technical field of M.2 solid state hard disk quick plug-in device, and in particular to an M.2 solid state hard disk quick plug-in device and its assembly structure installed in a POS machine or an industrial computer (BOX PC).

Today's computer motherboards and related circuit boards have adopted M.2's new physical layout and technical specifications, replacing the known PCI Express (PCIE) and mSATA interface standards. M.2 has flexible technical specifications, higher transmission speeds, allows for more specifications of solid-state hard drive module lengths and widths, and matches more advanced connector interfaces, making M.2 more suitable for use in various computer devices than mSATA.

Although there are some known technologies for quick-swap devices for M.2 solid-state hard drives (such as those shown in patent announcements I766716B and I709960B), they are mostly used in tablet computers or laptops, and their structures are not applicable to POS machines or industrial computers (BOX PCs). Moreover, before shipping, existing POS machine or industrial computer suppliers must disassemble the casing of the POS machine or industrial computer according to customer orders and then install an M.2 solid-state hard drive of the capacity selected by the customer. After the casing of the POS machine or industrial computer is closed, it is difficult for the client to replace the M.2 solid-state hard drive in a simple way. Even the supplier cannot directly replace it at the client's end, causing difficulties in subsequent services.

Therefore, how to propose a device that can quickly plug and unplug the M.2 solid state drive and its assembly structure installed on a POS machine or industrial computer to solve the above-mentioned problems of the known technology is the problem that the present invention aims to overcome.

In view of the above-mentioned shortcomings of the known technology, the creator felt that it was not perfect, so he devoted his mind to carefully research and overcome it. With his many years of experience in the industry, he further developed an M.2 solid state hard disk quick plug-in device and its assembly structure, which can achieve the purpose of convenient and quick plug-in and pull-out of M.2 solid state hard disks and improve heat dissipation.

The main purpose of the present invention is to provide a quick-plug device for M.2 solid-state hard disks, which is mainly composed of components such as a tray shell, a tray, a pull-out piece, and a tray cover, so as to achieve the effects of convenient and quick plugging and unplugging of M.2 solid-state hard disks and improving heat dissipation.

The second purpose of the present invention is to provide an assembly structure of an M.2 solid state hard disk quick plug-in device, which can achieve the effect of convenient and quick plug-in of the M.2 solid state hard disk of the POS machine or industrial computer through the back panel structure of the case of the POS machine or industrial computer and the structure in which the quick plug-in device is installed on the motherboard.

In order to achieve the above-mentioned purpose, the present invention proposes an M.2 solid state hard disk quick plug-in device, which is used to be set at one end of the plug interface of an M.2 connector on a circuit board (motherboard), so that the M.2 solid state hard disk can be easily plugged in and replaced. Its preferred technical solution includes: a tray shell, the tray shell is a rectangular shell, the tray shell has a slot space that passes through its front and rear ends, and a plurality of plug pins protruding from the lower ends of its two sides; each of the plug pins has a plug-in plate for inserting into the circuit board, and a supporting portion formed at the upper end of the plug-in plate, and the supporting portion is used to abut against the surface of the circuit board. A tray, which is used to insert or reversely withdraw from the slot space of the tray housing, a hard disk accommodating space is recessed on one side of the tray, which is used to place an M.2 solid state hard disk; the hard disk accommodating space extends along the length direction of the tray to the front and rear ends of the tray, and the tray is formed with two side walls located on both sides of the hard disk accommodating space; the front end of the hard disk accommodating space is provided with a first anti-stubbing protrusion, and buckling parts located on both sides of the hard disk accommodating space. A extraction member, which is combined with the rear end of the tray, and a first locking part protrudes from one side of the extraction member, and the first locking part is provided for a screw to be passed through, and the first locking part is locked to the tray housing or other objects by using the screw. and a tray cover, which can be detachably covered on the hard disk storage space; an elastic pressing sheet is formed at one end of the tray cover corresponding to the front end of the tray, and a buckle piece is bent on both sides of the elastic pressing sheet, and the buckle piece is buckled on the buckle part of the tray; the other end of the tray cover corresponding to the rear end of the tray is provided with a coupling part, and the coupling part is fixed on the extraction member or the tray.

One of the preferred technical solutions, the tray housing includes a bottom plate and an upper cover; the bottom plate has multiple plug pins protruding downward from both sides, and the plug pins are respectively provided with a right angle notch extending to the bottom end thereof to form the plug-in piece, and the upper end wall of the right angle notch constitutes the supporting part; the upper cover covers the bottom plate, and the slot space is formed between the upper cover and the bottom plate; and the front end of the upper cover or the bottom plate is provided with a stopper, and the stopper protrudes to the front end of the slot space.

One of the preferred technical solutions is that a second locking portion protrudes from one side of the rear end of the tray housing, and the screw of the extraction member passes through the first locking portion and is screwed to the second locking portion.

One of the preferred technical solutions is that the two side walls of the tray have a embedding groove respectively; and the two sides of the tray cover are respectively bent to form an embedding piece, and the embedding piece and the buckle piece are respectively embedded in the embedding groove of the side wall.

One of the preferred technical solutions is that the outer wall surface of one of the two side walls of the tray is concavely provided with an anti-mistake groove, which extends to the front and rear ends of the tray. The tray can only be inserted into the slot space when the anti-mistake groove corresponds to the correct direction.

One of the preferred technical solutions further includes an end cover, which is screwed to the front end of the tray; the end cover has a notch corresponding to the hard disk storage space, and the bottom edge of the notch is formed with the first anti-fouling protrusion; the two sides of the end cover respectively form the buckling part, which is embedded in the slot of the tray so that the buckle hook is buckled in the buckling part in the slot; and the end cover is formed with two limit plates located on its two sides, and the two limit plates are against the two inner side walls of the hard disk storage space.

One of the preferred technical solutions is that the tray is provided with multiple positioning holes connecting the hard disk storage space and the other side, each positioning hole can be penetrated by a positioning screw, each positioning screw can lock a positioning column, and the positioning column is used to lock in a groove at the end of the M.2 solid state hard disk.

One of the preferred technical solutions further includes a heat conductive sheet, which is used to be attached to one side of the M.2 solid state drive, and the heat conductive sheet has a through hole corresponding to the positioning column.

One of the preferred technical solutions is that the rear end of the tray is provided with a latch hole, screw through holes on both sides of the latch hole, and a fixing screw passing through the screw through hole; and the extraction member is provided with a latch protrusion embedded in the latch hole, and a locking portion corresponding to the screw through hole, so that the fixing screw is locked in the locking portion.

In order to achieve the above-mentioned purpose, the present invention proposes an assembly structure of an M.2 solid state hard disk quick plug-in device, and its preferred technical solution includes: a housing, the housing has a back plate, the back plate is provided with a hard disk plug-in hole, a hole edge of the hard disk plug-in hole is provided with a second anti-misalignment convex part, and the back plate is also provided with a third locking part corresponding to the first locking part of the extraction member. A circuit board is fixed on a support plate in the housing, and the circuit board has an M.2 connector corresponding to the hard disk plug-in hole. The plug-in pieces of the plug-in pins of the tray shell are respectively inserted into the plug-in holes on the circuit board, so that the supporting parts on the plug-in pieces are against the surface of the circuit board, and a heat dissipation space is formed between the bottom surface of the tray shell and the surface of the circuit board; the front end of the slot space of the tray shell is aligned with the M.2 connector, and the rear end of the slot space is aligned with the hard disk plug-in hole of the backplane. An M.2 solid state hard disk is arranged in the hard disk accommodating space of the tray, and the gold finger part of the M.2 solid state hard disk has a concave part corresponding to the first anti-fool convex part, the gold finger part protrudes at the front end of the tray, and the first anti-fool convex part is locked in the concave part of the gold finger part. And the front end of the tray can pass through the hard drive plug hole of the back plate and be inserted into the slot space of the tray shell until the gold finger portion of the M.2 solid state hard drive is plugged into the M.2 connector, and then the screw of the first locking portion of the extraction member is locked in the third locking portion of the back plate.

100: Circuit board

200:M.2 connector

300:M.2 solid state drive

301: Gold Finger Department

302: concave part

303: Groove

400: Chassis

401: Pallet

10: Tray shell

11: Slot space

12: Connector pins

121: Plug-in piece

13: Support part

14: Base plate

15: Upper cover

16: Stopper

17: Second locking part

20: Tray

21: Hard disk space

22: Side wall

23: latch hole

24: Screw hole

25: Fixing screws

26: Anti-fool slot

27: Embedded groove

28: Positioning hole

29: Positioning screw

30: Extraction parts

31: First locking part

32: Screws

33: latch convex part

34: Locking part

40: Tray cover

41: Elastic pressing piece

42: Hook

43: Junction

44: Screws

45: L-shaped groove

46: Inlay

50: End cover

51: The first anti-fool convex part

52: Buckle section

53: Gap

54: Screws

55: Limiting piece

60: Heat conducting sheet

61:Through hole

70: Positioning column

80: Back panel

81: Hard disk socket

82: Second anti-fool convex part

83: The third locking part

A1: Heat dissipation space

Figure 1 is a top view of the tray housing and the rear end of the tray of the present invention.

Figure 2 is a schematic diagram of the tray housing and the front end of the tray of the present invention when viewed from above.

Figure 3 is a top view of the rear end of the tray, extraction member, tray cover and other components of the present invention.

Figure 4 is a schematic diagram of the front end top view of the tray, extraction member, tray cover and other components of the present invention.

Figure 5 is a cross-sectional schematic diagram of the operation of the hook piece of the tray and tray cover of the present invention.

Figure 6 is a schematic diagram of the tray housing of the present invention installed on the circuit board and backplane.

Figure 7 is a cross-sectional schematic diagram of the tray housing of the present invention installed on a circuit board to form a heat dissipation space.

Figure 8 is a schematic diagram of the assembly structure of the M.2 solid state drive quick plug-and-play device of the present invention installed in a POS machine.

Figure 9 is a schematic diagram of the assembly structure of the M.2 solid state hard disk quick plug-and-play device of the present invention installed in an industrial computer (BOX PC).

Referring to FIG. 1 and FIG. 6 , the present invention discloses a M.2 solid state hard disk quick plug-in device, which is used to be arranged at one end of the plug interface of an M.2 connector 200 of a circuit board 100 (e.g., a computer motherboard), so that the M.2 solid state hard disk can be easily plugged and replaced, such as hot plugging or unplugging. Referring to FIG. 2 to FIG. 4 , the preferred embodiment of the present invention mainly includes: a tray housing 10, a tray 20, a drawer 30 and a tray cover 40, and may be provided with an end cover 50, a heat conductive sheet 60 and a plurality of positioning columns 70 and other components, wherein: Referring to FIG. 6 and FIG. 7 , the tray housing 10 is a rectangular shell used to be pre-installed on the circuit board 100 (motherboard). Referring to FIG. 1 and FIG. 2 , the tray housing 10 has a slot space 11 extending through the front and rear ends thereof, and a plurality of plug pins 12 protruding from the lower ends of the two sides thereof. Each of the plug pins 12 has a plug-in piece 121 for inserting the circuit board 100, and a supporting portion 13 formed at the upper end of the plug-in piece 121, and the supporting portion 13 is used to abut against the surface of the circuit board 100. As shown in FIG. 2 , the tray housing 10 is preferably formed by stamping a heat dissipating aluminum alloy sheet, and includes a bottom plate 14 and an upper cover 15. A plurality of the plug pins 12 protrude downward from the two sides of the bottom plate 14. The two sides of the plug pins 12 are respectively provided with a right angle notch extending to the bottom end thereof to form the plug-in piece 121. The upper end wall of the right angle notch constitutes the support portion 13. The upper cover 15 is a U-shaped cover body, which covers and buckles on the bottom plate 14, and the slot space 11 is formed between the upper cover 15 and the bottom plate 14. And the front end of the upper cover 15 or the bottom plate 14 is bent to have a stopper 16, so that the stopper 16 protrudes to the front end of the slot space 11, which is used to stop the front end of the tray 20 inserted into the slot space 11.

The tray 20 may be an aluminum extrusion piece, and the tray 20 allows the user to conveniently insert the tray into the slot space 11 of the tray housing 10, or reversely withdraw the tray from the slot space 11 of the tray housing 10, so as to facilitate the connection or separation of an M.2 solid state hard disk 300 (M.2 SSD) installed in the tray 20 with the M.2 connector 200 on the circuit board 100. Referring to FIGS. 2 to 4 , a hard disk accommodating space 21 is concavely provided on one side of the tray 20, and the hard disk accommodating space 21 is used to place an M.2 solid state hard disk 300. The hard disk storage space 21 extends along the length direction of the tray 20 to the front and rear ends of the tray 20, so that the tray 20 forms two side walls 22 located on both sides of the disk storage space 21. In addition, the front end of the hard disk storage space 21 has a first anti-mistake protrusion 51, which is used to install the M.2 solid state hard disk 300 into the hard disk storage space 21 in the correct direction, so that the first anti-mistake protrusion 51 is locked in a recess 302 of a gold finger part 301 of the M.2 solid state hard disk 300. In addition, the two sides of the hard disk storage space 21 have a buckling part 52 respectively, which is used to buckle the tray cover 40 in the buckling part 52 when assembling. Among them, one of the two side walls 22 of the tray 20 is also recessed with an anti-mistake groove 26, which extends to the front and rear ends of the tray 20. When the anti-mistake groove 26 corresponds to the correct direction, the tray 20 can be inserted into the slot space 11 of the tray housing 10.

The extraction member 30 is a component provided for the user to hold in hand, so that the user can insert and remove the above-mentioned tray 20. The extraction member 30 is preferably implemented as a block assembled at the rear end of the tray 20, which can be formed by stamping and bending an aluminum alloy plate, or a plastic part formed by integral injection molding. A first locking portion 31 (which may be a sheet, etc.) protrudes from any side of the extraction member 30, and the first locking portion 31 forms a screw through hole so that a screw 32 can be passed through the first locking portion 31. The first locking portion 31 can be locked to a second locking portion 17 protruding from one side of the rear end of the tray housing 10 (as shown in Figures 1 and 6) or to the back panel 80 of the computer (as shown in Figures 8 and 9). One of the preferred assembly embodiments is shown in FIG3 . The rear end of the tray 20 is provided with a latch hole 23, screw through holes 24 on both sides of the latch hole 23, and a fixing screw 25 that can pass through the screw through hole 24; and the corresponding front end of the extraction member 30 is provided with a latch protrusion 33 that can be embedded in the latch hole 23, and a locking portion 34 (locking hole) corresponding to the screw through hole 24, so that the fixing screw 25 can be locked in the locking portion 34, thereby assembling the extraction member 30 at the rear end of the tray 20.

Referring to FIG. 3 and FIG. 4 , the tray cover 40 is preferably formed by stamping and bending an aluminum alloy plate, so that it can be used to detachably cover the hard disk storage space 21 of the tray 20, and enclose the M.2 solid state drive 300 in the hard disk storage space 21. The tray cover 40 is implemented as a rectangular sheet corresponding to the tray 20, and an elastic pressing sheet 41 is formed at one end corresponding to the front end of the tray 20. A buckle sheet 42 is bent on both sides of the elastic pressing sheet 41, and the buckle sheet 42 is used to buckle with the buckling parts 52 on both sides of the tray 20 (as shown in FIG. 1 ). The tray cover 40 is provided with a coupling portion 43 at the other end corresponding to the rear end of the tray 20. The coupling portion 43 has a screw through hole, and the coupling portion 43 is fixed to the bottom surface of the extraction member 30 or the tray 20 by a screw 44. The elastic pressing piece 41 can be formed by punching an L-shaped groove 45 or other shapes of grooves on both sides of the tray cover 40. In order to facilitate the tray cover 40 to be correctly installed on the tray 20, the bottom surfaces of the two side walls 22 of the tray 20 are respectively provided with an embedding groove 27, and the embedding groove 27 extends to the two ends of the side wall 22; and the two sides of the tray cover 40 are respectively bent with an embedding piece 46, and the embedding pieces 46 and the buckle piece 42 on both sides are respectively embedded in the embedding groove 27 of the side wall 22 during assembly, and the buckle piece 42 is buckled in the buckling part 52 located in the embedding groove 27 (as shown in Figure 1). On the contrary, as shown in Figure 5, as long as the elastic pressing piece 41 is pressed down, the buckle piece 42 can be separated from the buckling part 52, so as to achieve the function of conveniently disassembling the tray cover 40.

Referring to FIGS. 2 to 5 , the present invention can be implemented with an end cap 50, which is locked to the front end of the tray 20 by means of screws 54. The end cap 50 is stamped from an aluminum alloy sheet, and has a notch 53 on one side corresponding to the hard disk accommodating space 21. The bottom edge of the notch 53 is formed with the first foolproof protrusion 51. When the end cap 50 is locked to the front end of the tray 20, the first foolproof protrusion 51 at the front end of the hard disk accommodating space 21 is formed. The above-mentioned buckling part 52 is formed on both sides of the end cover 50. When the end cover 50 is locked at the front end of the tray 20, the buckling part 52 can be embedded in the embedding groove 27 of the tray 20, so that the buckle piece 42 of the tray cover 40 is buckled in the buckling part 52 in the embedding groove 27. Furthermore, the end cover 50 is formed with two limit pieces 55 located on both sides thereof. When the end cover 50 is locked at the front end of the tray 20, the two limit pieces 55 abut against the two inner side walls of the hard disk accommodating space 21 (as shown in FIG. 2).

Referring to FIGS. 2 to 5 , the tray 20 is provided with a plurality of positioning holes 28 connecting the hard disk storage space 21 and the other side thereof. Each positioning hole 28 can be penetrated by a positioning screw 29. Each positioning screw 29 can lock a positioning post 70 so that the positioning post 70 is located in the hard disk storage space 21 and can be used to engage a groove 303 (as shown in FIGS. 3 and 4 ) at the end of the M.2 solid state drive 300. Moreover, the positioning post 70 can be arbitrarily set according to the length of the M.2 solid state drive 300. In addition, to help the M.2 solid state drive 300 dissipate heat, the present invention can further implement a heat conductive sheet 60 in the tray 20. The heat conductive sheet 60 is a sheet made of metal with good thermal conductivity. It is used to adhere to one side of the M.2 solid state drive 300, and the heat conductive sheet 60 has a through hole 61 corresponding to the positioning column 70, so that the present invention can have a better heat dissipation function for the M.2 solid state drive.

Referring to Figures 6 to 9, the present invention, based on the above technical features, further proposes an assembly structure of an M.2 solid state hard disk quick plug-in device, and its preferred embodiment includes: assembling the above M.2 solid state hard disk quick plug-in device on a circuit board 100 in a housing 400, so as to achieve the function of plugging and replacing the M.2 solid state hard disk 300 without disassembling the housing 400, wherein: The housing 400 can be a housing of a POS machine (as shown in Figure 8), or a housing of an industrial computer (such as a BOX PC) (as shown in Figure 9), or a housing of other computers. The back plate 80 is provided at the rear or bottom of the housing 400. The back plate 80 is provided with a hard disk insertion hole 81. A second foolproof protrusion 82 is provided on one side of the hard disk insertion hole 81. The second foolproof protrusion 82 corresponds to the foolproof groove 26 on one side of the tray 20, so that the tray 20 can be inserted into the tray housing 10 through the hard disk insertion hole 81 in the correct direction. The back plate 80 is also provided with a third locking portion 83 corresponding to the first locking portion 31 of the extraction member 30. The third locking portion 83 can be a locking hole. The circuit board 100 is usually a motherboard, which is fixed on a tray 401 in the case 400 (as shown in FIG. 6 ), and a known M.2 connector 200 is packaged on the circuit board 100. When the circuit board 100 and the backplane 80 are installed, the hard drive plug hole 81 of the backplane 80 is aligned with the M.2 connector 200.

Referring to FIG. 7 , when the plug-in pieces 121 of the plug-in pins 12 of the tray housing 10 of the present invention are respectively inserted into the plug-in holes on the circuit board 100, the supporting portion 13 on the plug-in piece 121 can be against the surface of the circuit board 100, so that the front end of the slot space 11 of the tray housing 10 is aligned with the M.2 connector 200, and the rear end of the slot space 11 is aligned with the hard disk plug-in hole 81 of the backplane 80. With this assembly structure, a heat dissipation space A1 is formed between the bottom surface of the tray housing 10 and the surface of the circuit board 100, so that electronic components can be added to this space, and poor heat dissipation of electronic components on the circuit board 100 can be avoided, and the M.2 solid state hard disk 300 can also be effectively cooled.

After an M.2 solid state hard disk 300 is arranged in the hard disk accommodating space 21 of the tray 20, the gold finger portion 301 of the M.2 solid state hard disk 300 passes through the end cover 50 and protrudes from the front end of the tray 20, and the first anti-fouling protrusion 51 of the end cover 50 is locked in the recess 302 of the gold finger portion 301. When the user holds the extraction member 30, the front end of the tray 20 can be inserted into the slot space 11 of the tray housing 10 through the hard disk insertion hole 81 of the back plate 80 until the gold finger portion 301 of the M.2 solid state hard disk 300 is plugged into the M.2 connector 200, and then the screw 32 of the first locking portion 31 of the extraction member 30 is directly locked to the second locking portion 17 of the tray housing 10 (as shown in Figures 1 and 6), or the screw 32 of the first locking portion 31 is locked to the third locking portion 83 of the back plate 80 (as shown in Figures 8 and 9), thereby completing the plug-in assembly structure of the M.2 solid state hard disk 300. On the contrary, after removing the screw 32 of the extraction member 30, the extraction member 30 can be grabbed and pulled out in the reverse direction, so that the M.2 solid state drive 300 is separated from the M.2 connector 200, achieving the function of quick plug-in and replacement.

The present invention has been disclosed in the above text with a preferred embodiment, but those familiar with the present technology should understand that the embodiment is only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to the embodiment should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined by the patent application.

10: Tray shell

11: Slot space

12: Connector pins

121: Plug-in piece

14: Base plate

15: Upper cover

17: Second locking part

20: Tray

22: Side wall

23: latch hole

25: Fixing screws

26: Anti-fool slot

27: Embedded groove

29: Positioning screw

30: Extraction parts

31: First locking part

32: Screws

33: latch convex part

42: Hook

50: End cover

52: Buckle section

54: Screws

Claims (10)

An M.2 solid state hard disk quick plug-in device is used to be set at one end of the plug interface of an M.2 connector on a circuit board, which includes: A tray shell, the tray shell is a rectangular shell, the tray shell has a slot space that passes through its front and rear ends, and a plurality of plug pins protruding from the lower ends of its two sides; each of the plug pins has a plug-in plate for inserting into the circuit board, and a support portion formed at the upper end of the plug-in plate, the support portion is used to abut against the surface of the circuit board; A tray, which is used to insert or reversely withdraw from the slot space of the tray housing, and a hard disk storage space is recessed on one side of the tray for placing an M.2 solid state hard disk; the hard disk storage space extends along the length direction of the tray to the front and rear ends of the tray, and the tray is formed with two side walls located on both sides of the disk storage space; the front end of the hard disk storage space is provided with a first anti-fouling protrusion, and buckling parts located on both sides of the hard disk storage space; A pull-out member, which is coupled to the rear end of the tray, and a first locking portion protrudes from one side of the pull-out member, and a screw is passed through the first locking portion, and the first locking portion is locked to the tray housing or other objects by using the screw; and A tray cover, which can be detachably covered on the hard disk storage space; an elastic pressing sheet is formed at one end of the tray cover corresponding to the front end of the tray, and a buckle hook is bent on both sides of the elastic pressing sheet, and the buckle hook is buckled on the buckling part of the tray; the other end of the tray cover corresponding to the rear end of the tray is provided with a coupling part, and the coupling part is fixed on the extraction member or the tray. An M.2 solid-state hard drive quick-plug device as described in claim 1, wherein the tray housing includes a base plate and a top cover; a plurality of the plug pins protrude downward from both sides of the base plate, and both sides of the plug pin are respectively provided with a right-angle notch extending to the bottom end thereof to form the plug-in piece, and the upper end wall of the right-angle notch constitutes the supporting portion; the top cover covers the base plate, and the slot space is formed between the top cover and the base plate; and a stop portion is provided at the front end of the top cover or the base plate, and the stop portion protrudes to the front end of the slot space. As described in claim 1 or 2, the M.2 solid state hard disk quick-plug device has a second locking portion protruding from one side of the rear end of the tray housing, and the screw of the extraction member passes through the first locking portion and is then screwed to the second locking portion. As described in claim 1, the M.2 solid state hard drive quick-plug device, wherein the two side walls of the tray each have an embedding groove; and an embedding piece is bent on both sides of the tray cover, and the embedding piece and the hook piece are respectively embedded in the embedding groove of the side wall. As described in claim 1 or 4, the M.2 solid state hard drive quick-plug device has an anti-mistake groove recessed on the outer wall surface of one of the two side walls of the tray, and the anti-mistake groove extends to the front and rear ends of the tray. The tray can only be inserted into the slot space when the anti-mistake groove corresponds to the correct direction. The M.2 solid state hard drive quick-plug device as described in claim 4 further includes an end cover, which is locked to the front end of the tray by screws; the end cover has a gap corresponding to the hard drive accommodating space, and the bottom edge of the gap is formed with the first anti-fouling protrusion; the buckling parts are respectively formed on both sides of the end cover, and the buckling parts are embedded in the embedding groove of the tray so that the buckle plate is buckled in the buckling part in the embedding groove; and the end cover is formed with two limit plates located on both sides thereof, and the two limit plates are against the two inner walls of the hard drive accommodating space. As described in claim 1, the M.2 solid state drive quick-plug device, wherein the tray is provided with a plurality of positioning holes connecting the hard drive accommodating space and the other side, each of the positioning holes can be passed through a positioning screw, each of the positioning screws can lock a positioning column, and the positioning column is used to engage in a groove at the end of the M.2 solid state drive. The M.2 solid state drive quick-plug device as described in claim 7 further includes a heat conductive sheet, which is used to be attached to one side of the M.2 solid state drive, and the heat conductive sheet has a through hole corresponding to the positioning column. As described in claim 1, the M.2 solid state hard drive quick-plug device is provided with a latch hole at the rear end of the tray, screw through holes located on both sides of the latch hole, and a fixing screw passing through the screw through hole; and the extraction member is provided with a latch protrusion embedded in the latch hole, and a locking portion corresponding to the screw through hole, so that the fixing screw is locked in the locking portion. An assembly structure of an M.2 solid state hard disk quick plug-in device as described in any one of claims 1 to 9, comprising: A housing, the housing having a back plate, the back plate having a hard disk plug-in hole, a second anti-misalignment protrusion being provided on a hole edge of the hard disk plug-in hole, and the back plate also having a third locking portion corresponding to the first locking portion of the extraction member; A circuit board fixed on a support plate in the housing, the circuit board having an M.2 connector corresponding to the hard disk plug-in hole; The plug-in pieces of the plug-in pins of the tray housing are respectively inserted into the plug-in holes on the circuit board, so that the supporting parts on the plug-in pieces are against the surface of the circuit board, and a heat dissipation space is formed between the bottom surface of the tray housing and the surface of the circuit board; the front end of the slot space of the tray housing is aligned with the M.2 connector, and the rear end of the slot space is aligned with the hard disk plug-in hole of the backplane; An M.2 solid state hard disk is arranged in the hard disk storage space of the tray, and the gold finger part of the M.2 solid state hard disk has a concave part corresponding to the first anti-fool convex part, the gold finger part protrudes at the front end of the tray, and the first anti-fool convex part is locked in the concave part of the gold finger part; and The front end of the tray can be inserted into the slot space of the tray housing through the hard drive plug hole of the back plate until the gold finger portion of the M.2 solid state hard drive is plugged into the M.2 connector, and then the screw of the first locking portion of the extraction member is locked in the third locking portion of the back plate.

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