CN101022709A - Universal Serial Bus (USB) memory device - Google Patents

Abstract

A Universal Serial Bus (USB) memory device is disclosed. The USB memory device comprises a shell, a plurality of directional depressions and a plurality of concave objects, wherein the depressions are used for enabling the USB memory device to be connected more easily when the USB memory device is inserted into the concave USB slot; and an electronic Printed Circuit Board Assembly (PCBA) disposed within the housing, wherein the PCBA is secured by pressing the plurality of recesses and a space is formed in the housing and the PCBA.

Description

Universal Serial Bus (USB) memory device

technical field

The invention relates to a universal serial bus (USB) memory device, in particular to a miniaturized universal serial bus (USB) memory device.

Background technique

A computer enhances its capabilities by connecting a variety of external peripherals. This could involve any number of peripherals. In order to comply with the trend of computers becoming more and more modular, a Universal Serial Bus (USB) interface standard was jointly developed. The USB standard defines a high-speed serial data interface between a computer and additional devices, such as keyboards, printers, scanners, and secondary storage devices, where the secondary storage devices include floppy disk drives, hard disk drives, and solid-state secondary storage devices. On computers with USB ports, these devices can be added or removed during computer boot execution.

Since portable computer devices with USB ports are becoming more and more popular, such as notebook computers, tablet computers, and personal digital assistants (PDAs), the USB interface provides portable computer users with plug-and-play flexibility. That is, the user of the notebook computer can carry many external peripheral devices, and simply plug the required external peripheral devices into the portable computer device when needed.

Recently, flash memory cards with USB connectors have also been sold. The USB flash memory card does not require a special reader and can be plugged into a USB connector on a personal computer (PC) or other host device. These USB flash memory cards can be used instead of floppy disks and are known as USB key (key) type flash drives, USB thumb type (thumb) flash drives, and flash drives under many different names. These USB flash memory cards hold more than ten floppy disks in an area not exceeding the size of a postage stamp.

FIG. 1 shows a male thin USB connector integrated on a circuit substrate of a flash memory card according to the prior art; and FIG. 2 shows a cross-sectional view of AA-AA in FIG. 1 . As shown in FIG. 1 and FIG. 2 , the miniaturized USB pen-type flash drive includes a metal conductive shell 11 with a plurality of directional recesses 111 , and an electronic printed circuit board assembly (PCBA) 12 for providing storage memory. Furthermore, because the electronic printed circuit board assembly (PCBA) 12 is often not thick enough to meet the requirements, it is difficult to read and store. Therefore, you must rely on other objects to increase the height before you can read or store memory.

Therefore, the miniaturized USB pen-type flash drive also includes a sheet 13, which is arranged between the metal conductive shell 11 and the PCBA 12, and is used to make the PCBA 12 close to the metal conductive shell 11, wherein the thin sheet 13 can be made of a metal sheet or a plastic sheet . The sheet 13 is used to fill the space between the metal conductive housing 11 and the PCBA 12 . Actually anyway, it is difficult for the sheet 13 to be assembled in the space between the metal conductive housing 11 and the PCBA 12 . Therefore, it is difficult to effectively miniaturize the USB pen-type flash drive in the prior art.

FIG. 3 shows the assembly method of the prior art USB memory device, and FIG. 4 shows a cross-sectional view of A-A in FIG. 3 . As shown in FIGS. 3 and 4 , the USB memory device includes a metal conductive housing 31 with a plurality of directional recesses 311 , and an electronic printed circuit board assembly (PCBA) 32 for providing storage memory. Similarly, the miniaturized USB memory device also includes a sheet 33 disposed between the metal conductive shell 31 and the PCBA32. Due to the sheet 33, the inner space of the metal conductive shell 31 is further reduced. In a practical situation, there is not enough space available to add an LED indicator. If the LED indicator is to be incorporated into the USB memory device, additional space must be added to accommodate the LED indicator module in the prior art. Therefore, the conventional USB memory device cannot be effectively miniaturized without adding an LED indicator without adding extra space.

Although a multi-application USB memory device is technically feasible, since the invention of the miniaturized USB memory device, countless pioneering attempts have proved that it is actually difficult to realize. A miniaturized universal serial bus (USB) that can reduce costs, simplify the manufacturing process, add additional modules (such as LED indicators) to the USB memory device without increasing the overall space, and improve all the shortcomings of the prior art and solve the above problems USB) memory device is required.

Contents of the invention

The invention organizes and points out certain features of the invention; other features will be disclosed in the following description. This paragraph will attempt to cover various amendments and arrangements made to the spirit and scope of the claimed claims.

According to the above, the prior art suffers from the above-mentioned disadvantages. The object of the present invention is to provide a universal serial bus (USB) memory device, which can reduce the cost, simplify the manufacturing process and add additional modules (such as LED indicators) to the USB memory device without increasing the overall space.

The invention discloses a USB memory device. The device includes a shell with a plurality of directional depressions and a plurality of recesses, wherein the depressions are used to make the USB memory device easier to connect when inserted into a concave USB slot; and an electronic printed circuit board An assembly (PCBA) disposed in the housing, wherein the PCBA is fixed by pressing the plurality of recesses, and a space is formed in the housing and the PCBA.

According to the present invention, the casing is made of conductive metal material.

According to the present invention, the plurality of directional depressions and the plurality of dimples are integrally formed by punching the outer shell.

According to the present invention, the PCBA further includes a memory controller; a storage memory for communicating with the memory controller; a USB interface circuit for communicating with the memory controller; and an integrated circuit package for connecting the memory A controller, a storage memory, and a USB interface are integrated into the USB memory device.

According to the present invention, the storage memory is one of flash memory and electronically erasable read-only memory (EEPROM).

According to the present invention, it further includes an LED indicator for indicating the operation of the USB memory device.

According to the present invention, the PCBA further includes an LED module controller for controlling the LED indicator.

According to the present invention, the housing further includes an opening for placing the LED indicator.

The present invention also discloses a USB memory device comprising: an electronic printed circuit board assembly (PCBA); and a housing with a plurality of recesses, wherein the PCBA is disposed in the housing; the plurality of recesses protrude inward to The PCBA is fixed, and a space is formed in the case and the PCBA.

According to the present invention, the casing is made of conductive metal material.

According to the invention, said plurality of dimples are formed by stamping the shell.

According to the present invention, the PCBA further includes: a memory controller; a storage memory for communicating with the memory controller; a USB interface circuit for communicating with the memory controller; and an integrated circuit package for connecting the memory A controller, a storage memory, and a USB interface are integrated into the USB memory device.

According to the present invention, the storage memory is one of a flash memory and an electronically erasable read-only memory (EEPROM).

According to the present invention, it further includes an LED indicator for indicating the operation of the USB memory device.

According to the present invention, the PCBA further includes an LED module controller for controlling the LED indicator.

According to the present invention, the housing further includes an opening for placing the LED indicator.

The present invention also discloses a USB memory device, comprising: a housing with multiple directional depressions and multiple concaves, wherein the depressions are used to make the USB memory device easier to connect when inserted into a concave USB slot; an electronic printed circuit board an assembly (PCBA) disposed within the housing, wherein the PCBA is secured by pressing the recesses; and an LED module having an LED indicator disposed within the housing and an LED disposed in the PCBA A module controller, wherein there is a space in the housing and PCBA for setting the LED module.

According to the present invention, the housing further includes an opening for placing the LED indicator.

The above objects and advantages of the present invention will be described in detail in the following implementation methods accompanied by drawings.

Description of drawings

FIG. 1 illustrates an assembly view of a male thin USB connector integrated with a flash memory card circuit board substrate according to the prior art.

FIG. 2 illustrates a cross-sectional view of AA-AA in FIG. 1 .

FIG. 3 illustrates an assembly diagram of a USB memory device according to the prior art.

Figure 4 illustrates the cross-sectional view of Figures 3A-A.

FIG. 5 illustrates a preferred embodiment of a USB memory device according to the present invention.

Fig. 6 illustrates a cross-sectional view of A'A'-A'A' in Fig. 5 .

Fig. 7 illustrates a PCBA according to the present invention.

FIG. 8 illustrates another preferred embodiment of a USB memory device according to the present invention.

Fig. 9 illustrates a cross-sectional view of A'-A' in Fig. 8 .

Detailed ways

The present invention discloses a Universal Serial Bus (USB) memory device. Objects and advantages of the present invention will be apparent to those skilled in the art from the following detailed description. The present invention is not limited by the following examples.

Please refer to Figure 5 and Figure 6. FIG. 5 illustrates a preferred embodiment of a USB memory device according to the present invention, and FIG. 6 illustrates a cross-sectional view of A'A'-A'A' in FIG. 5 . As shown in Figure 5 and Figure 6, the USB memory device includes a housing 51, the housing 51 has a plurality of directional recesses 511 and a plurality of recesses 512, wherein the plurality of directional recesses 511 make the USB memory device inserted into the concave USB slot ( not shown); and an electronic printed circuit board assembly (PCBA) 52, which is arranged in the housing 51, wherein the PCBA52 is fixed by pressing the plurality of concave objects 512; and a space 53 formed in the housing 51 and the PCBA52 .

In practice, the shell 51 is made of conductive metal material, wherein a plurality of directional depressions 511 and a plurality of recesses 512 are simultaneously formed by stamping the shell 51 . In this embodiment, one end of the housing 51 is regarded as a USB male connector, and the insertion end of the housing 51 has the same standard height as a standard USB male connector. At the same time, the plurality of directional recesses 511 are used to engage with the metal domes of the USB slot (not shown), and the plurality of directional recesses 511 provide a tight combination when inserted into the USB slot. Additionally, the PCBA 52 is bonded to the bottom 54 of the end. Typically, PCBA 52 may contain several components. Please refer to FIG. 7 , which illustrates a PCBA according to the present invention, wherein PCBA52 further includes a memory controller 521; a storage memory 522 for communicating with the memory controller 521; a USB interface circuit 523 for communicating with the memory controller 521; and The integrated circuit package 524 enables the memory controller 521, the storage memory 522, and the USB interface 523 to be integrated into the USB memory device. Meanwhile, the storage memory 522 is one of a flash memory and an electronically erasable read-only memory (EEPROM). Of course, any electronic components can be added to the PCBA52 as required. In particular, the USB memory device of the present invention can add more components by using the space 53 between the housing 51 and the PCBA 52 .

Please refer to FIG. 8 and FIG. 9 . Meanwhile, FIG. 8 illustrates another preferred embodiment of a USB memory device according to the present invention, and FIG. 9 illustrates a cross-sectional view of A'-A' in FIG. 8 . As shown in Figures 8 and 9, the USB memory device includes a housing 81 with a plurality of directional recesses 811 and a plurality of recesses 812, wherein the plurality of directional recesses 811 (which are used to engage with the metal dome on the USB slot ) makes the USB memory device easier to connect when inserted into the concave USB slot; the electronic printed circuit board assembly (PCBA) 82 is arranged in the shell 81, wherein the PCBA82 is fixed by pressing the plurality of concave objects 812 (please refer to FIG. 6 , such as 512); and the LED module, which has an LED indicator 841 arranged in the housing 81 and an LED module controller 842 arranged on the PCBA82, wherein there is a space 83 in the housing 81 and the PCBA82 for setting the LED module on it Inside.

Practically, the housing 81 further includes an opening 85 so that the LED indicator 841 can emit light. The housing 81 is usually made of conductive metal material, wherein the plurality of directional depressions 811, the plurality of recesses 812, and the opening 85 are integrated. As mentioned above, one end of the housing 81 is considered as a USB male connector, and the insertion end of the housing 81 has the same standard height as a standard USB male connector. At the same time, a plurality of directional recesses 811 provide a tight fit when inserted into the USB slot. In fact, the housing 81 can be regarded as a housing of the USB memory device, so the overall volume of the USB memory device can be reduced. Same, PCBA82, as shown in Figure 7 (component symbol 52), comprises memory controller 521; Storage memory 522, is used for communicating with memory controller 521; USB interface circuit 523, is used for communicating with memory controller 521; With The integrated circuit package 524 integrates the memory controller 521, the storage memory 522, and the USB interface 523 into the USB memory device, wherein the storage memory 522 is one of flash memory and electronically erasable read-only memory (EEPROM). Of course, any electronic components can be added to the PCBA82 as required. In this embodiment, the USB memory device is further added to the LED module without increasing the overall volume. According to the spirit of the present invention, more components can be added to the space 83 between the housing 81 and the PCBA 82 in the USB memory device of the present invention.

In summary, the present invention provides a Universal Serial Bus (USB) memory device that reduces cost and increases throughput because it does not require the use of chips. Furthermore, the present invention also simplifies the manufacturing process because the PCBA can be supported by the punched recess, so that the existing sheet can be replaced. In addition, the USB memory device of the present invention can add additional modules (such as LED indicators) to the space between the shell and the PCBA without increasing the overall volume. That is to say, the casing can be directly regarded as the casing of the USB memory device. Therefore, the USB memory device of the present invention can be efficiently miniaturized. Certainly, according to different designs, the USB memory device of the present invention may further include a decorative case to cover the casing. The process of the present invention has many remarkable characteristics, effectively improves the shortcomings of the prior art in practice or application, and can manufacture practically reliable products with novelty and economic value. Therefore, the present invention has great production value.

Even though the present invention has been described in detail by the above-mentioned embodiments, various modifications can be devised by those skilled in the art, all of which are within the scope of the claims.

Claims (18)

1. USB memory device comprises:

Shell has a plurality of directivity depressions and a plurality of concavity thing, and wherein this depression is used for making the easier connection when inserting matrix USB groove of this USB memory device; And

The electronic printing circuit board combination is arranged in the described shell, and wherein this electronic printing circuit board combination fixes by pushing described a plurality of concavity thing, and forms a space in this shell and the combination of this electronic printing circuit board.

2. USB memory device according to claim 1, wherein said shell is made by conductive metallic material.

3. USB memory device according to claim 1, wherein said a plurality of directivity depressions and a plurality of concavity thing come integrally formed by the described shell of punching press.

4. USB memory device according to claim 1, wherein said electronic printing circuit board combination further comprises:

Memory Controller Hub;

Store internal memory, be used for and this Memory Controller Hub communication;

Usb circuit is used for and this Memory Controller Hub communication; And

The integrated circuit encapsulation is used for described Memory Controller Hub, storage internal memory and USB interface are incorporated in this USB memory device.

5. USB memory device according to claim 4, save as in the wherein said storage flash memory and electronics erase the formula read-only memory one of them.

6. USB memory device according to claim 1 further comprises the LED indicating device, is used to refer to the operation of described USB memory device.

7. USB memory device according to claim 6, wherein said electronic printing circuit board combination further comprises the led module controller, is used for controlling described LED indicating device.

8. USB memory device according to claim 6, wherein said shell further comprises opening, is used for placing described LED indicating device.

9. USB memory device comprises:

The electronic printing circuit board combination; And

Shell has a plurality of concavity things, and wherein said electronic printing circuit board combination is arranged in this shell;

Described a plurality of concavity thing is inwardly outstanding to be made up to fix this electronic printing circuit board, and forms a space in described shell and electronic printing circuit board combination.

10. USB memory device according to claim 9, wherein said shell is made by conductive metallic material.

11. USB memory device according to claim 9, wherein said a plurality of concavity things are shaped by the described shell of punching press.

12. USB memory device according to claim 9, wherein said electronic printing circuit board combination further comprises:

Memory Controller Hub;

Store internal memory, be used for and this Memory Controller Hub communication;

Usb circuit is used for and this Memory Controller Hub communication; And

The integrated circuit encapsulation is used for described Memory Controller Hub, storage internal memory and USB interface are incorporated in this USB memory device.

13. USB memory device according to claim 12, save as in the wherein said storage flash memory and electronics erase the formula read-only memory one of them.

14. USB memory device according to claim 9 further comprises the LED indicating device, is used to refer to the operation of USB memory device.

15. USB memory device according to claim 14, wherein said electronic printing circuit board combination further comprises the led module controller, is used for controlling described LED indicating device.

16. USB memory device according to claim 14, wherein said shell further comprises opening, is used for placing described LED indicating device.

17. a USB memory device comprises:

Shell has a plurality of directivity depressions and a plurality of concavity thing, and wherein this depression is used for making the easier connection when inserting matrix USB groove of this USB memory device;

The electronic printing circuit board combination is arranged in the described shell, and wherein this electronic printing circuit board combination fixes by pushing described a plurality of concavity thing; And

Led module has and is arranged on the LED indicating device in the described shell and is arranged on led module controller in the described electronic printing circuit board combination, wherein has a space to be used for being provided with this led module in described shell and electronic printing circuit board combination.

18. USB memory device according to claim 17, wherein said shell further comprises opening, is used for placing this LED indicating device.

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