CN2465251Y

CN2465251Y - Portable external connected storage card system

Info

Publication number: CN2465251Y
Application number: CN 01215252
Authority: CN
Inventors: 曾佑明; 曾立功; 王振兴; 黄亮
Original assignee: GUANGZHOU SHENGXIAN INDUSTRY Co Ltd
Current assignee: GUANGZHOU SHENGXIAN INDUSTRY Co Ltd
Priority date: 2001-02-20
Filing date: 2001-02-20
Publication date: 2001-12-12
Anticipated expiration: 2011-02-20

Abstract

The utility model relates to an external connected storage card system for portable devices, which is composed of an electronic recording card and a card seat, wherein, a memory is arranged between the positive surface and the negative surface of the card, and the positive surface of the card is provided with a circuit board. The surface of the circuit board is provided with a plurality of external connected pins; the card seat is composed of an upper and a lower card seat bodies; metal reeds are arranged on the card seat bodies at positions respectively corresponding the external connected pin arranged on the card is provided with; the circuit board connected with an external device is fixed on the lower card seat body; the external connected pins arranged on the surface of the card is arranged into two lines; the external connected pins of a power supply (VCC) are shorter than all other external connected pins. The utility model has the advantages that the card can be plugged on or off when power is on; the reliability is high; the operation is convenient.

Description

Portable set external connection of storage card system

The utility model is the parts of access data in the digital device system, especially a kind of portable set external connection of storage card system.

At present, popular on the market portable set, as electronic notebook, PDA etc., be equipped with the cassette storer, as PC card, CF card, SD card etc., these cards can make portable set access data easily, but these present cards all can not solve the problem of warm swap well, essential first deenergization when being plug-in card, otherwise easily data in storage card itself and the card are damaged.

The purpose of this utility model provides a kind of hot-pluggable, reliability height, portable set external connection of storage card system easy to use.

The technical scheme that realizes the utility model purpose is: the utility model is made up of electronical record card (storage card) and deck, be provided with the storer that the storage data are used between positive and negative two surfaces of electronical record card, the front surface of electronical record card is provided with wiring board, being provided with housing all around is sealed in storer in the card, PCB surface on the electronical record card is provided with some external pins, deck is made up of deck body up and down, be provided with metal spring leaf on the position one to one with the external pin in electronical record card surface on the deck body, be fixed with the wiring board that is connected with external unit at following deck body, the lip-deep external pin of electronical record card is divided into two rows, wherein the external pin of power supply (VCC) than all other external bow pin all to lack a bit.

On the anti-surface of the present utility model wiring board can be set simultaneously, can establish some external pins on the PCB surface equally.

Good effect of the present utility model is: since wiring board on the external pin of power supply (VCC) than all other external pin all to lack a bit, when therefore the electronical record card inserts deck, last touches the live part of the external pin of power supply (VCC) on electronical record card surface to have guaranteed the metal spring leaf of power supply on deck, and when pulling out card, because the effective travel of the external pin of power supply (VCC) will be lacked than other external pin, therefore power supply is disconnected at first.Like this, when plug electronical record card, need not first deenergization, hot-pluggable, reliability height, easy to use.

The utility model is described in further detail below in conjunction with drawings and Examples.

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is the utility model electronical record card front surface structural representation;

Accompanying drawing 3 is the anti-surface structure synoptic diagram of the utility model electronical record card;

Accompanying drawing 4 is the utility model upper blocking seat body inner surface structure synoptic diagram;

Accompanying drawing 5 is a deck body inner surface structure synoptic diagram under the utility model;

As shown in drawings, the utility model is made up of electronical record card 49 and deck 50, be provided with the storer (ROM) that the storage data are used between electronical record card 49 positive and negative two surfaces, this storer can be selected disposable programmable memory (OTP ROM) as required for use, or flash memory (Flash ROM), or mask storer (Mask ROM), adding the ultrasonic technique crimping with the plastic cement housing all around forms, storer is sealed in the card body, each is made of positive and negative two surfaces of electronical record card 49 wiring board, two PCB surface are provided with 48 external pins altogether, be used for and being connected of system equipment and writing and reading of data, 48 external pins are distributed on the double-edged PCB surface of card body, every is 24,24 external pins of every divide two rows to be provided with, by 12 distributions of every row, spacing between every adjacent two pins is 2.54MM, the virtual contact width of external pin is 2MM, separate with ground (GND) tow sides two exclusive connecing between the pin, its gap with ground is left 0.8MM.By the two-sided distribution of above-mentioned 48 external pins, can realize the parallel interface of electronical record card 49 and card reader, solved the slow problem of access speed that serial interface mode brought that adopts.Deck 50 is made up of upper blocking seat body 501 and following deck body 502, on these two deck bodies with electronical record card 49 positive and negative surfaces on all external pins be provided with 48 metal spring leaf draw-in grooves on the position one to one, each draw-in groove internal fixation has a metal spring leaf 51, couple together with clasp between upper blocking seat body 501 and the following deck body 502, on lower base 502, also be fixed with a wiring board 52, metal spring leaf 51 on this wiring board and the deck body is connected with welding manner, and be responsible for being connected the transmission of realization data with external unit by winding displacement.

External pin

1,12,13 on electronical record card 49 fronts, external pin 25,37 is defined as between ground (GND) and the

external pin

1,12,13 and between the external pin 25,37 and is interconnected on the reverse side.Like this, electronical record card 49 is when inserting deck 50, metal spring leaf on the pairing deck of external pin 13 (GND) can touch external pin 12 at first, and in push-on process, on the deck metal spring leaf of corresponding external pin 13 do not leave all the time until the tram that is pushed into the external pin 13 of Ka Mianshang, at this moment, external pin 1 on the card face, 12,25,37 with deck on the respective metal reed closely contact, when pulling out card, the metal spring leaf of corresponding external pin 13 is at external pin 13 on the same deck, 12 slips, when leaving external pin, all metal spring leafs just skid off external pin 12, at this moment just disconnect, ground wire crosses between two row's pins in addition, the one, can get rid of the interference of signal between two row's pins, the 2nd, can remove when plug electronical record card 49 metal spring leaf with static charge.A separated crack in the external pin 3 of power supply (VCC), do not do any inner connection, the effective travel that had so both guaranteed the external pin 3 of power supply will be lacked than other pin, fully guaranteed the integrality of whole pin outward appearance again, the more important thing is when electronical record card 49 inserts deck 50, guaranteed that last touches effective pin part of VCC power supply on the card to power supply at the metal spring leaf on the deck, and when extracting, can make power supply! Disconnect at first.

Because it is effective that present each function pin of storer (ROM) is low level, so the external pin 8 of the external pin 5 of chip select line (CE), the external pin 6 that allows output line (OE), the external pin 7 that allows incoming line (WE), low power consumption control line (RP) is positioned among first row in card body front, after having avoided placing second row, because of the second exclusive metal spring leaf that connects on the pairing deck body of pin all may become low level after (GND) when inserting insweptly, behind power connection, the maloperation that before not having actual transmission instruction, may bring.And the pinout of the power supply (VPP) of will programming is at the longest external pin 27 of reverse side first row's effective travel, both guaranteed the abundant contact of VPP, can avoid electronical record card 49 to cause the consequence of bringing with ground short circuit again because of the depth relationship that inserts in the deck 50, this point, power supply (VCC) are defined as the positive first exclusive pin 3 that connects and also are based on same reason.

The utility model in use, can guarantee fully that electronical record card 49 is when inserting deck 50, the external pin 1 on ground, 12,13,25,37 connect at first, the external pin 4 of each function (chip select line CE), 5 (allowing output line OE), 6 (allowing incoming line WE), 7 (low power consumption control line RP), 27 (programming power supply VPP), 14,15,16,17,18,19,20,21 (data input/output lines), 22,23,24,26,28,29,30,31,32,33,34,35,36,38,39,40,41,42,43,44,45,46,47,48 (address input lines), 2,8,9,10,11 (undefined NC) connect inferior back, and power pins 3 is connected at last; When pulling out card, the external pin of power supply disconnects at first, and each function pin takes second place, and ground disconnects at last, has accomplished that veritably the electronical record jig has the hot-swappable function; Simultaneously, because last 48 the two-sided distributions of external pin of card, realized the parallel interface of card and card reader, improved the access speed of data, and can realize the addressing of maximum 8 128M bit data capacity and the access of data, fully solved the demand of present portable set, be applicable to the application of multiple memory capacity high-capacity data access.

Claims

1. portable set external connection of storage card system, formed by electronical record card (49) and deck (50), be provided with the storer (ROM) that the storage data are used between positive and negative two surfaces of electronical record card (49), the front surface of electronical record card (49) is provided with wiring board, being provided with housing all around is sealed in storer in the card, the PCB surface of electronical record card (49) is provided with some external pins, deck (50) is made up of upper blocking seat body (501) and following deck body (502), be provided with metal spring leaf (51) on the position one to one with the last external pin of electronical record card (49) on the deck body, be fixed with the wiring board (52) that is connected with external unit at following deck body (502), it is characterized in that the lip-deep external pin of electronical record card (49) is divided into two rows, wherein the external pin of power supply (VCC) than all other external pin all to lack a bit.

2. portable set external connection of storage card according to claim 1 system is characterized in that electronical record card (49) reverse side is provided with wiring board simultaneously, is provided with external pin equally on the surface of this wiring board.

3. portable set external connection of storage card according to claim 2 system is characterized in that electronical record card (49) positive and negative two lip-deep external pins respectively have 24.

4. portable set external connection of storage card according to claim 3 system is characterized in that electronical record card (49) positive and negative two lip-deep 48 external pins are set to ground (1) respectively, (12), (13), (25), (37), power supply (3), chip select line (4), allow output line (5), allow incoming line (6), low power consumption control line (7), data input/output line (14), (15), (16), (17), (18), (19), (20), (21), address input line (22), (23), (24), (26), (28), (29), (30), (31), (32), (33), (34), (35), (36), (38), (39), (40), (41), (42), (43), (44), (45), (46), (47), (48), programming power supply (27), undefined line (2), (8), (9), (10), (11).

5. portable set external connection of storage card according to claim 4 system, the external pin (1), (12), (13) that it is characterized in that electronical record card (49) front surface ground are interconnected, and cross this surface two exclusive connecing between the pin, anti-external pin (25), (37) seemingly of electronical record card (49) also are interconnected, and cross this surface two exclusive connecing between the pin.