CN201479509U - USB flash drive with seamless metal shell - Google Patents

Abstract

A USB flash drive with seamless metal shell is mainly characterized in that a printed circuit board, a metal tray and an insulating upper seat are inserted into a metal shell seamless square tube which is formed by drawing out to form an internal structure, and the USB flash drive is integrated. Therefore, the assembly is very quick and accurate in size, and other accessories such as a clamping strip device or a clamping body device can be added to be used as a clamp or a tie clip and the like.

Description

USB flash drive with seamless metal casing

technical field

The utility model relates to a structural design of a USB flash drive, in particular to a USB flash drive with a seamless metal shell.

Background technique

A USB flash drive is a mobile storage device that can be connected to a computer to access data for easy portability. Moreover, due to the continuous advancement of technology, the capacity of the current USB flash drive is constantly expanding, and its application range is also becoming wider and wider.

In FIGS. 13 to 15 , it is a known USB flash drive, which mainly has a metal shell 91 formed by stamping, and a plastic shell 92 is installed outside the metal shell 91 . The metal casing 91 has a printed circuit board 93 with storage function inside, and is resisted and positioned by an insulating seat 94 .

In this known USB flash drive structure, the metal shell 91 is made by continuous punching of metal plates. Although it has the advantages of fast production and low cost, there will be seams 95 in the made metal shell, resulting in poor appearance. It must be covered with a plastic shell 92 to achieve an aesthetic effect. Simultaneously, because be the metal casing 91 that has seam, when being subjected to external impact, often can deform at the seam position, make whole USB flash drive damaged and can't be used. Therefore, there is a need for further improvement in this USB flash drive.

Contents of the invention

Therefore, the utility model provides a USB flash drive with a seamless metal casing. The metal casing is formed by a seamless square tube that is drawn out, so that the structure of the metal casing has a higher structure than the known stamped casing with seams. Strong rigidity, not easy to deform.

According to above-mentioned purpose, a kind of USB flash drive with seamless metal casing is characterized in that, comprises:

A metal shell, which is a seamless square tube that is drawn out, has a front opening and a rear opening, and a pair of directional through holes are formed on the top surface adjacent to the front opening;

A printed circuit board with at least one USB interface circuit and an integrated packaging circuit with memory function, the USB interface circuit is arranged in front of the integrated packaging circuit;

a metal tray positioned below the printed circuit board to support the entire bottom surface of the printed circuit board; and

An insulating upper seat, combined with the metal tray, has a thinner front section and a thicker rear section; the front section covers the appearance of the integrated package circuit of the printed circuit board, and the rear end exceeds the printed circuit board. the trailing edge of the circuit board;

The printed circuit board is covered by the metal tray and the insulating upper seat, and fixedly assembled in the metal casing, the USB interface circuit is located on the bottom surface of the front opening, and a space is formed between the top surface, and the rear opening is covered The rear end of the insulating upper seat is closed.

Wherein, the insulating upper seat has at least one elastic device, and the elastic device is pressed against the printed circuit board, and the printed circuit board is closely connected with the metal tray.

Wherein, the metal tray has a vertical buckle near the rear edge, and a button hole is opened on the vertical buckle; the rear section of the insulating upper seat has a slot relative to the vertical buckle, and a protruding groove is formed in the slot. Buckle block; the flap is inserted into the slot, and the button hole is fastened on the buckle block.

Wherein, the two sides of the rear portion of the insulating upper seat respectively have a protrusion, and the two sides of the metal shell are respectively provided with a through hole opposite to the position of the protrusion, and the protrusion is buckled into the through hole.

Wherein, the printed circuit board further has an indicator light, and the insulating upper seat is made of a light-transmitting material that allows the light of the indicator light to emit from the end surface of the rear section of the insulating upper seat.

Wherein, the metal tray has at least two ribs for supporting the printed circuit board.

Wherein, the front edge of the metal tray forms a vertical flange for resisting the front end of the printed circuit board.

Wherein, the rear edge of the metal tray has a vertical foldable piece, and a button hole is opened on the vertical foldable piece; the rear section of the insulating upper seat has a hole for the vertical foldable piece to pass through relative to the position of the vertical foldable piece. Slotted, and a buckle block is formed on the upper surface of the rear section; the vertical foldable piece penetrates the slot, and is turned over to the buckle block of the rear section, and the button hole is buckled on the buckle block.

Wherein, the end face of the rear part of the insulating upper seat forms a buckle seat outside the metal casing.

Wherein, it further includes a clamping strip device, the clamping strip device has a joint part combined with the insulating upper seat, and a curved clamping strip extends on the surface of the metal shell.

Wherein, it further includes a clip body device, the clip body device has a joint part combined with the insulating upper seat, and a clip body is arranged on the surface of the metal shell, and the USB flash drive is a tie clip.

Through the above-mentioned structure, the utility model provides a USB flash drive with a seamless metal shell, wherein the metal shell is a seamless square tube that is drawn out and formed, and its surface is smooth without edges, making the metal shell structure relatively The known stamping-formed shell with seams has strong rigidity and is not easily deformed. In particular, this will make the entire USB flash drive no need to assemble a plastic shell outside the metal shell to cover the joints, so the utility model will greatly reduce the manufacturing cost.

Furthermore, the utility model provides a USB flash drive with a seamless metal shell. Since the metal shell of the utility model adopts a seamless square tube, it is manufactured by drawing out and then cut into the required size. Insert the internal component printed circuit board, metal tray and insulating upper seat through the rear opening of the metal casing, the assembly is very fast and the size is accurate. At the same time, the surface of the metal shell can be electroplated, printed, laser engraved or marked with a logo to form a beautiful shape. Compared with traditional flash drives, it has more variable characteristics in production.

The utility model provides a USB flash drive with a seamless metal shell, wherein the insulating upper seat can be made of light-transmitting material, so that the light of the indicator light on the printed circuit board can be emitted from the end surface of the rear section of the insulating upper seat.

The utility model provides a USB flash drive with a seamless metal shell, which can add other accessories such as a clip device or a clip body device to be used as a clamp or tie clip, etc., which increases practicability and is easy to carry.

Hereinafter, the structural features and usage effects of the present utility model will be described in detail according to the embodiments shown in the drawings.

Description of drawings

Fig. 1 is an exploded view of the first embodiment of the utility model,

Fig. 2 is a partial combination diagram of the first embodiment of the utility model,

Fig. 3 is a combination diagram of the first embodiment of the utility model,

Fig. 4 is a sectional view of the first embodiment of the utility model,

Figure 5 is a sectional view along AA in Figure 4,

Fig. 6 is the appearance of the first embodiment of the utility model, but a clasp seat is formed,

Fig. 7 is an exploded view of the second embodiment of the utility model,

Fig. 8 is a sectional view of the second embodiment of the utility model,

Fig. 9 is an exploded view of the third embodiment of the utility model,

Fig. 10 is a sectional view of a third embodiment of the present invention,

Fig. 11 is an exploded view of the fourth embodiment of the present utility model,

Fig. 12 is a cross-sectional view of the fourth embodiment of the utility model,

Fig. 13 is an external view of a known USB flash drive,

Figure 14 is the conventional USB flash drive in Figure 13, but the plastic shell is removed,

FIG. 15 is a sectional view of FIG. 14 .

Detailed ways

Please refer to Fig. 1 to Fig. 3, it is the first kind of embodiment of the present utility model, is to provide a kind of USB flash drive 1, its main structure is with a metal shell 11, a printed circuit board 12, a metal tray 13 and an insulating upper seat 14 constituted.

The metal shell 11 is a seamless square tube that is drawn out and has a front opening 111 and a rear opening 112 , and a pair of directional through holes 114 are formed on the top surface 113 close to the front opening 111 . Two through holes 115 are respectively defined on opposite sides of the metal shell 11 .

The printed circuit board 12 has a USB interface circuit 121 and an integrated packaging circuit 122 with memory function. The USB interface circuit 121 is arranged in front of the integrated packaging circuit 122 . In addition, the printed circuit board 12 also has an indicator light 123 .

The metal tray 13 is disposed under the printed circuit board 12 to support the entire bottom surface of the printed circuit board 12 . The metal tray 13 has a vertical buckle 131 near the rear edge, and a buckle hole 132 is defined on the vertical buckle 131 . The metal tray 13 has two ribs 133 to support the printed circuit board 12 . Meanwhile, a vertical flange 134 is formed on the front edge of the metal tray 13 to resist the front end of the printed circuit board 12 .

The insulating upper seat 14 is combined with the metal tray 13 and has a thinner front section 141 and a thicker rear section 142 . The front portion 141 covers the outer surface of the integrated package circuit 122 of the printed circuit board 12 , and the rear portion 142 exceeds the rear edge of the printed circuit board 12 . The front portion 141 of the insulating upper seat 14 has an elastic device 143 , which is a pair of elastic strips for pressing the printed circuit board 12 to make the printed circuit board 12 and the metal tray 13 closely bonded. The two sides of the rear portion 142 of the insulating upper seat 14 respectively have a protrusion 144, which is buckled into the through-holes 115 respectively provided on the two sides of the metal shell 11, as shown in FIG. 3 or FIG. 5 . The rear portion 142 of the insulating upper seat 14 has a slot 145 relative to the position of the vertical buckle 131, and a protruding buckle 146 is formed in the slot 145, the vertical buckle 131 penetrates into the slot 145, and the button hole 132 buckles Fit on the buckle block 146, as shown in Fig. 4 or Fig. 5 .

In the present utility model, the printed circuit board 12 is covered by the metal tray 13 and the insulating upper seat 14, and is fixedly assembled in the metal casing 11, so that the USB interface circuit 121 is positioned on the bottom surface of the front opening 111 and connected to the top surface. A space S is formed between 113, which can be matched as shown in FIG. 3 and FIG.

When the utility model is combined, the printed circuit board 12 is first placed on the metal tray 13, and then the insulating upper seat 14 is covered on the printed circuit board 12. The buckle hole 132 of the buckle piece 131 is buckled with the buckle block 146 in the slot 145 , as shown in FIG. 2 . After that, insert the assembled printed circuit board 12, metal tray 13 and insulating upper seat 14 from the rear opening 112 of the metal shell 11, so that the protrusions 144 on both sides of the insulating upper seat 14 are buckled into the through holes 115 on both sides of the metal shell 11. , as shown in Figure 3, that completes the combination of the entire USB flash drive.

The metal shell 11 of the present invention is a drawn-out seamless square tube with a smooth surface and no edge, so that the structure of the metal shell 11 has stronger rigidity and less deformation than the known stamped shell with seams. In particular, this will make the entire USB flash drive 1 no need to assemble a plastic shell outside the metal shell 11 to cover the joints, so the utility model will greatly reduce the manufacturing cost.

Furthermore, since the metal shell 11 of the present invention adopts a seamless square tube, it is extracted and manufactured, and then cut to the required size, and the internal component printed circuit board 12, metal tray 13 and insulating upper seat 14 are separated from the metal shell The rear opening 112 of 11 is inserted, and the combination is very fast and accurate in size. At the same time, the surface of the metal casing 11 can be electroplated, printed, laser engraved or marked with a logo to form a beautiful shape. Compared with traditional flash drives, it has more variable characteristics in production.

The insulating upper seat 14 of the present utility model can be made of a light-transmitting material, so that the light of the indicator light 123 on the printed circuit board 12 can be emitted from the end surface of the rear portion 142 of the insulating upper seat 14 .

Referring to Fig. 6, the utility model can form a buckle seat 149 outside the metal shell 11 on the end of the rear section 142 of the insulating upper seat 14, so as to facilitate the connection with the reel or other linear objects.

Further, referring to Fig. 7 and shown in Fig. 8, it is the second embodiment of the present utility model, which is similar to the first embodiment, but there is a vertical foldable piece 135 at the rear edge of the metal tray 13, which can be vertically folded. A button hole 136 is defined on the flap 135 . In addition, a slot 147 is formed at the rear portion 142 of the insulating upper seat 14 opposite to the vertical foldable piece 135 for the vertical foldable piece 135 to pass through, and a buckle 148 is formed on the upper surface of the rear portion 142 . The vertical foldable piece 135 penetrates the slot 147 and is folded toward the buckle block 148 of the rear section 142 so that the button hole 136 is fastened to the buckle block 148 , as shown in FIG. 8 .

In addition, the utility model can add other accessories such as a clamping device or a clamping device to produce other functions.

The third embodiment of the present invention is shown in FIG. 9 and FIG. 10 , which further includes a clamping device 15 , and the clamping device 15 has a joint portion 151 and a curved clamping bar 152 . The joint part 151 is combined with the insulating upper seat 14, and the curved clip bar 152 extends on the surface of the metal shell 11. The curved clip bar 152 has a partial contact point P with the upper surface of the metal shell 11, so that the USB flash drive can be clamped in a on the flakes.

Referring to FIG. 11 and FIG. 12 , it is a fourth embodiment of the present utility model, which further includes a clip body device 16 , and the clip body device 16 has a joint portion 161 and a clip body 162 . The joint part 161 is combined with the insulating upper seat 14, and the clip body 162 is disposed on the surface of the metal casing 11, so that the USB flash drive becomes a tie clip.

Claims (11)

1. A USB flash drive with a seamless metal shell, characterized in that it comprises: A metal shell, which is a seamless square tube that is drawn out, has a front opening and a rear opening, and a pair of directional through holes are formed on the top surface adjacent to the front opening; A printed circuit board with at least one USB interface circuit and an integrated packaging circuit with memory function, the USB interface circuit is arranged in front of the integrated packaging circuit; a metal tray positioned below the printed circuit board to support the entire bottom surface of the printed circuit board; and An insulating upper seat, combined with the metal tray, has a thinner front section and a thicker rear section; the front section covers the appearance of the integrated package circuit of the printed circuit board, and the rear end exceeds the printed circuit board. the trailing edge of the circuit board; The printed circuit board is covered by the metal tray and the insulating upper seat, and fixedly assembled in the metal casing, the USB interface circuit is located on the bottom surface of the front opening, and a space is formed between the top surface, and the rear opening is covered The rear end of the insulating upper seat is closed. 2. The USB flash drive with a seamless metal casing according to claim 1, wherein the insulating upper seat has at least one elastic device, and the elastic device is pressed against the printed circuit board, and the printed circuit board and the printed circuit board are connected to each other. The metal tray fits tightly. 3. The USB flash drive with a seamless metal shell according to claim 1, wherein the metal tray has a vertical buckle near the rear edge, and a button hole is opened on the vertical buckle; the insulating upper seat The rear part of the rear part has a slot relative to the vertical buckle piece, and a protruding buckle block is formed in the slot; the flap is inserted into the slot, and the button hole is buckled on the buckle block. 4. According to the USB flash drive with a seamless metal shell according to claim 1, it is characterized in that the two sides of the rear section of the insulating upper seat respectively have a bump, and the two sides of the metal shell are opposite to the bump A through hole is opened at each position, and the protrusion is buckled into the through hole. 5. The USB flash drive with a seamless metal casing according to claim 1, wherein the printed circuit board further has an indicator light, and the insulating upper seat is such that the light of the indicator light can pass through the insulating upper seat The light-transmitting material emitted from the end face of the rear section. 6. The USB flash drive with a seamless metal casing according to claim 1, wherein the metal tray has at least two ribs for supporting the printed circuit board. 7 . The USB flash drive with a seamless metal casing according to claim 1 , wherein a vertical flange is formed on the front edge of the metal tray for resisting the front end of the printed circuit board. 8 . 8. The USB flash drive with a seamless metal shell according to claim 1, wherein the rear edge of the metal tray has a vertical foldable piece, and a buttonhole is opened on the vertical foldable piece; the insulating upper seat Relative to the position of the vertical foldable piece, the rear portion of the rear portion has a slot for the vertical foldable piece to pass through, and a buckle is formed on the upper surface of the rear portion; the vertical foldable piece penetrates the slot, And turn over to the buckle block of the rear section, the button hole is buckled on the buckle block. 9 . The USB flash drive with a seamless metal casing according to claim 1 , wherein a buckle seat is formed on the end of the rear portion of the insulating upper seat facing outside the metal casing. 10 . 10. The USB flash drive with a seamless metal casing according to claim 1, further comprising a clamping device, the clamping device has a joint portion combined with the insulating upper seat, and a bending clip Strips extend over the surface of the metal housing. 11. The USB flash drive with a seamless metal shell according to claim 1, further comprising a clamping device, the clamping device has a joint portion combined with the insulating upper seat, and a clamping body Set on the surface of the metal casing, the USB flash drive is a tie clip.

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