JP3109193U - SD memory card with built-in USB interface plug - Google Patents

Abstract

An SD memory card incorporating a USB plug that can be selected by an SD or USB interface plug is provided.
An SD memory card is integrated with a USB interface plug. A circuit board is mounted between the top cover and the board and the SD conductive contact is secured to the first edge and the extension plate is located on the second edge. USB conductive boards are used to add expansion plate thickness to meet the requirements of USB hubs. In this way, the SD and USB plugs can be incorporated in a single memory card.
[Selection] Figure 1

Description

  The present invention relates to a memory card, and more particularly, to an SD (secure digital) memory card incorporating a USB (Universal Serial Bus) plug.

  As microelectronics products ranging from telephones to music storage devices and PDAs continue to grow in popularity, the trend of corresponding memory cards is directed towards higher capacity and higher compatibility. For example, standard interfaces for memory cards include CF (Compact Flash), MS (Message Store), SD and others. However, since the memory card has only a single plug that is not compatible with products with different hubs, the card reader can read multiple memory cards with different interface plugs. Provided.

  On the other hand, it is possible for a memory card to have multiple interface plugs that are compatible with various products, and this type of memory card usually has a second interface interface of USB in addition to the current standard plug. Has a plug.

  Taking the SD memory card as an example, the standard gap height in the SD hub is 1.4 mm ± 0.1 mm, so the plug thickness of the memory card must meet the above requirements. On the other hand, the standard gap height in a USB hub is at least 1.8 mm, clearly larger than the SD hub. The method of integrating two plugs into a single SD memory card remains a challenge.

  Accordingly, the present invention provides an SD card with a built-in USB interface plug to alleviate or eliminate the above-mentioned problems.

  The main object of the present invention is to provide an SD memory card incorporating a USB plug that can be selected by an SD or USB interface plug.

  Other objects, advantages and novel features of the present invention will become apparent from the following detailed description when taken in conjunction with the accompanying drawings.

  Referring to FIGS. 1 and 2, the SD memory card incorporating the USB interface plug according to the present invention has a board 10, and a plate 11 extends from one side of the board 10. The board 10 includes a continuous top flange 12 that extends along the periphery to form a flat structure. One edge of the rectangular plate 11 opposite to the board 10 forms a plurality of rails 13. The circuit board 20 has the same shape as the board 10 but is slightly smaller than the board 10 so that it can be received in the recess formed by the top flange 12. An extension plate 21 is formed at the first edge of the circuit board 20 that has four first contacts 22 that coincide with and fit over the rectangular plate 11. The second edge of the circuit board 20 at a position away from the expansion plate 21 is formed as a standard SD plug. The USB conductive board 30 has the same size as the extension plate 21, and the four third contacts 32 corresponding to the four second contacts 31 and the four second contacts 31 are the upper ends of the USB conductive board 30. When the USB conductive board 22 is aligned with the expansion plate 21, each second contact 31 comes into contact with the corresponding first contact 22.

  The top cover 40 is placed on the board 10 to fix the circuit board 20 and the USB conductive board 30. The first end of the top cover 40 has a plurality of parallel ribs 41 formed in a lattice shape, and each gap between two adjacent rails is an SD conductive contact at the second edge of the circuit board 20. Matches 23. The second end of the top cover 40 has an extension frame 42.

  The rear cap 50 corresponding to the rectangular board 11 has a notch 51 formed on the lower surface thereof, and the notch 51 has an opening at one edge of the rear cap.

  The assembly work is as follows. Since the USB conductive board 30 is disposed on the expansion plate 21 of the circuit board 20, the four second contacts 31 contact the four first contacts 22, respectively. The conductive board 30 and the circuit board 20 are securely arranged on the board 10 by the upper flange, and then the top cover 40 is arranged on the board 10.

  Referring to FIG. 2, since the first end of the top cover 40 is formed in a lattice structure and the second end is formed in the extension frame 42, the SD conductive contact 23 and the third contact 32 are Exposed. When the memory card is plugged into an SD or USB hub, these contacts can contact the corresponding contacts on the hub. When the assembly operation is completed, the USB plug is formed as shown in FIG. Referring to FIG. 3, when the rear cap 50 is assembled over the USB plug, the card operates as a standard SD memory card and can be used in an SD hub. Data on the USB plug can be accessed by removing the rear cap 50.

  4 and 5, when the circuit board 20 is securely placed on the plate 10, the total height is 1.4 ± 0.1 mm which meets the requirements of an SD hub with an opening dimension of 1.8 mm. It is. In order to solve this problem, the conductive board 30 is used to compensate for the height difference. On the other hand, the rail 13 of the plate 10 strengthens the expansion plate 21 and the conductive board 30.

The exploded view of SD memory card concerning the present invention. The perspective view of the SD memory card in the separated state according to the present invention. The perspective view of the SD memory card of the assembled state which concerns on this invention. The top view of the SD memory card based on this invention. Sectional drawing of the SD memory card obtained along line 5-5 of FIG. 4 concerning this invention.

Explanation of symbols

10 board 11 plate 20 circuit board 21 expansion plate 22 first contact 23 SD plug 30 USB conductive board 31 second contact 32 third contact 40 top cover 41 parallel rib 42 expansion frame 50 rear cap 51 notch

Claims (3)

A board (10) with a plate (11) extending from one side, a circuit board (20) coupled to the board, a USB conductive board (30), and for fixing the circuit board and the USB conductive board And a top cover (40) attached to the board,
The circuit board includes an expansion plate (21) formed on a first edge of the circuit board and having a plurality of first contacts (22) fixed to the expansion plate; and the expansion plate A standard SD plug (23) formed on the second edge of the circuit board away from the
The USB conductive board is attached to the extension plate and includes a plurality of second contacts (31) and a plurality of third contacts (32) each connected to the second contact, The second contact and the third contact are respectively disposed on one side and the opposite side of the USB conductive board, each second contact contacts each first contact, and the first end of the top cover Part has a lattice structure, and the second end of the top cover has an expansion frame (42), and an SD memory card with a built-in USB interface plug.   The extension frame, the USB conductive board, the extension plate and the plate are attached together to form the USB plug covered by a rear cap (50), with a notch (51) corresponding to the plate. The SD memory card having the USB interface plug according to claim 1 formed therein.   The USB interface of claim 2, wherein the lattice structure is formed by a plurality of parallel ribs (41), and a gap between two adjacent ribs coincides with an SD conductive contact at a second edge of the circuit board. SD memory card with built-in plug.

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