JPH10254586A - Card attachable to and detachable from electronic equipment and electronic equipment mounted with card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply a voltage without any problem even when the card detection pin of a connector is in a floating state by connecting one electrode of a battery to a 2nd connector and the other electrode to an external connection terminal. SOLUTION: The card 1 has a plurarity of parallel/series-connected cells 100 inside, and the cells 100 have the positive electrodes connected to the external connection terminal 5 through a 1st switch FFT 102 and the negative electrodes connected to 1st, 34th, 35th, and 68th pins of the connector 2. This connector 2 conforms with the PCMCIA/JEIDA standards so that the 1st, 34th, 35th, and 68th pins are standardized as GND pins. The connector 14 of electronic equipment 10 is also based upon the PCMCIA/JEIDA(personal computer memory card international association)/(Japan electronic industry development association) standards, so the 1st, 34th, 35th, and 68th pins are grounded. Thus, the pins of the connectors 2 and 14 which are used at the time of voltage supply from the battery are only the GND pins.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a PCMCIA / J
The present invention relates to a card detachable from an electronic device such as a card conforming to the EIDA standard, and an electronic device to which the card is attached.

[0002]

2. Description of the Related Art At present, in electronic equipment such as personal computers, PCMCIA is used as a means for selectively expanding functions.
In order to be able to use a card conforming to the / JEIDA standard, a card slot in which this kind of card can be attached and detached is provided. In particular, portable electronic devices such as notebook personal computers have been adopted in almost all models from the viewpoints of miniaturization, thinning, and low power consumption.

Conventionally, this type of card has been mainly used for an additional memory, a communication modem, and the like. However, in order to allow a portable electronic device to be driven for a long time, a battery is built in the card and a driving source is provided. (For example, Japanese Patent Application Laid-Open No. 8-278835).

[0004]

However, in the method proposed in the above-mentioned publication, the VCC pin in the I / F pin assignment based on the PCMCIA / JEIDA standard is used as the positive electrode, the GND pin is used as the negative electrode, and the PCMCIA is used. / JE
Other pins, including the card detection pin in the I / F pin assignment conforming to the IDA standard, are supplied with a drive voltage from a battery built in the card as floating, and thus have the following problems. .

First, PCMCIA / JE on the electronic device side
The VCC pin in the I / F pin assignment conforming to the IDA standard is set to PCM based on the detection result of the card detection pin.
Since switching is performed by the CIA / JEIDA controller, when the card detection pin is set to a floating state, power cannot be supplied from a battery in the card.

Secondly, in an electronic device having a suspend / resume function, power is not supplied from a battery in a card during the suspend because the VCC pin is cut off.

Third, when the card detection pin in the card is grounded, the electronic device detects that the card has been mounted, and starts taking measures. Cannot be recognized and an error occurs.

Fourth, in a normal electronic device, a plurality of drive voltages are required, such as 5 V, 3.3 V, and the like.
The PCMCIA / JEIDA standard originally does not consider a configuration in which power is supplied from the card side, so special measures are required on the electronic device side, and the PCMIA / JEIDA is mounted on an electronic device that does not support such. This may cause a problem such as circuit destruction on the electronic device side.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first feature of the present invention is to attach / detach to / from a slot of an electronic device provided with a first connector having a plurality of pins. A card, comprising: a battery; a second connector connected to the first connector when inserted into the slot; and an external connection terminal that cannot be connected to the first connector. Wherein the other electrode of the battery is connected to the second connector, and the other electrode of the battery is connected to the external connection terminal.

The second feature is PCMCIA / JEIDA
PCMCI having a connector conforming to the standard, an external connection terminal, and a battery, wherein the positive and negative electrodes of the battery are detachable with a card connected to the external connection terminal and the connector, respectively.
An electronic device having a card slot conforming to the A / JEIDA standard, wherein a PCM which is connected to a connector of the card when the card is mounted in the slot.
An electronic device to which a card is mounted, comprising: a connector compliant with the CIA / JEIDA standard; and a terminal connected to the external connection terminal.

[0011]

FIG. 1 is a perspective view of a main part of an embodiment to which the present invention is applied, and a card 1 is a PCMCIA / PCM.
It has a shape conforming to type III of the JEIDA standard. More specifically, the connector 2 conforming to the PCMCIA / JEIDA standard is disposed on one side, and the connecting portion 3 is rectangular in plan view, and the base portion is disposed on the connecting portion 3 and has a smaller planar shape than the connecting portion 3. 4 On the upper surface of the base portion 4, a concave portion whose bottom surface serves as the external connection terminal 5 is formed. As will be apparent from the following description, the card 1 has a built-in secondary battery made of, for example, nickel-metal hydride, lithium ion, or the like, the positive electrode of which is connected to the external connection terminal 5, and the negative electrode of which is the connector 2. PCMCIA / J
It is connected to the GND pin specified by the EIDA standard.

A guide groove 11 for guiding the card 1 into the electronic device 10 is provided in the electronic device 10 to which the card 1 is attached and detached.
Are formed in a U-shaped slot 12.
The card 1 is inserted into the slot 12 starting from the open end 13 with the side surface on which the connector 2 is arranged at the top and the other side surface orthogonal to the side surface on which the connector 2 is arranged in the guide groove 11. Fit and push. As a result, FIG.
As shown in (b), the connector 2 of the card 1 is connected to the second connector 14 located at the deepest part of the slot 12. At this time, the external connection terminal 5 of the card 1 stands up from the side surface of the slot 12 and the connection terminal formed on the lower surface side near the one end of the elastic L-shaped member 15 whose one end reaches the upper surface of the mounted card 1. 16 (in FIG. 1,
(Not shown). FIG. 2 is a partial cross-sectional view showing this connection state. The connection terminal 16 is bent in the direction in which the card 1 is attached to and detached from the slot 12 as indicated by the arrow in the figure.
By giving the character member 15 a downward elastic force,
When the card 1 is attached and detached in the direction of the arrow in the figure, the card 1 is inserted into and detached from the recess, and the connection of the connection terminal 16 to the external connection terminal 5 is improved.

FIGS. 3A and 3B show the main parts of the circuit configuration in the card 1 and the circuit configuration in the electronic device, respectively.

[0014] As shown in FIG.
A plurality of battery cells 100 connected in parallel, a controller 101 for controlling protection and short-circuit prevention of the battery cells 100, and a positive electrode and a negative electrode of the battery for controlling battery output under the control of the controller 101 The first switch FET102 and the second switch F disposed on the
ET103. The positive electrode of the battery cell 100 is connected to the external connection terminal 5 via the first switch FET102, and the negative electrode is connected to the second switch FET103.
, 34, 35 and 68 of the connector 2
Connected to pins. Since the connector 2 complies with the PCMCIA / JEIDA standard as described above, the first, 34th, 35th and 68th pins are GND pins according to the standard.

On the other hand, the circuit configuration in the electronic device 10 is shown in FIG.
As shown in (b), the connector 14 is also based on the PCMCIA / JEIDA standard similarly to the connector of the card 1, so the first, 34th, 35th and 68th pins are grounded. The connection terminal 16 connected to the external connection terminal 5 of the card 1 is connected to the DC / DC converter 200. The converter 200 converts a voltage supplied from the card 1 via the external terminal 16 into a voltage optimal for driving each unit in the electronic device 10 and supplies the voltage.
The converter 200 also converts and outputs the output of an AC adapter (not shown) or a battery built in the electronic device 10 in a similar manner.

As described above, according to the present embodiment, the card 1
Since the pins of the connectors 2 and 14 used when supplying the voltage from the internal battery are only GND pins, the voltage can be supplied without any problem even if the card detection pin of the connector is left floating. Even in an electronic device having a suspend / resume function, a voltage can be supplied from a battery in a card without any trouble even if the VCC pin is cut off during the suspend. Furthermore, since no voltage is generated except for the GND pin, even if the card 1 of the present embodiment is mistakenly mounted on an electronic device having no function corresponding to the card-type battery to which the present invention is applied, There is no danger of damaging the.

The output voltage of the card 1 can be changed depending on the type and configuration of the built-in battery cell 100, and
The input voltage of the DC / DC converter of the electronic device 10 also differs for each device. Therefore, when the card 1 having an output voltage different from the input voltage of the DC / DC converter of the electronic device 10 is mounted on the electronic device, the circuit of the electronic device 10 may be damaged. Therefore, the position of the external connection terminal 5 of the card 1 is made different according to the output voltage of the card itself, and the position of the connection terminal 16 of the electronic device is also changed to the DC / DC voltage.
Only when the output voltage of the card itself and the inputtable voltage of the DC / DC converter coincide with each other, the external connection terminal of the card is connected to the external connection terminal of the card only when the output voltage of the card matches the input voltage of the DC / DC converter. A position where the connection terminal of the device can be connected. Thereby, DC / D of electronic equipment
When a card having an output voltage different from the inputtable voltage of the C converter is mounted, the external connection terminal of the card is not connected to the connection terminal of the electronic device, so that damage can be avoided.

Further, the battery cell 100 without the card 1
In the case where is configured with a rechargeable secondary battery, if the charging circuit and the AC adapter are attached to the card itself, the battery in the card can be easily recharged.

[0019]

According to the present invention, the pin of the connector used when supplying the voltage from the battery built in the card is GN.
Since only the D pin is used, the voltage can be supplied without any problem even if the card detection pin of the connector is left floating. In addition, even in an electronic device having a suspend / resume function, the VCC can be supplied during the suspend.
Even if the pins are cut off, the voltage can be supplied from the battery in the card without any trouble. Further, since no voltage is generated except at the GND pin, even if a card is mistakenly attached to an electronic device that does not have a function corresponding to the card type battery targeted by the present invention, there is a fear that the electronic device may be damaged. There is no.

In addition, the position of the external connection terminal of the card is changed in accordance with the output voltage of the card itself, and the position of the connection terminal of the electronic device is also changed in accordance with the inputtable voltage. When the card is inserted into the electronic device only when the
By setting the external connection terminal of the card and the connection terminal of the electronic device to a connectable position, when a card having an output voltage different from the inputtable voltage of the electronic device is mounted, the external connection of the card is performed. Since the terminal and the connection terminal of the electronic device are not connected, damage can be avoided.

[Brief description of the drawings]

FIG. 1 is a perspective view of an essential part showing one embodiment of the present invention;
(A) shows a state where the card 1 is not mounted to the slot 12, and (b) shows a state where the card 1 is mounted.

FIG. 2 is a partially enlarged cross-sectional view in the present embodiment.

FIG. 3 is a circuit diagram showing a circuit configuration in the present embodiment.

[Explanation of symbols]

 1 Card 2 Connector 5 External Connection Terminal 10 Electronic Equipment 12 Slot 14 Connector 15 Connection Terminal

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Haruaki Kamihara 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Electric Co., Ltd. (72) Inventor Shinya Amizaki 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Sanyo Tottori Inside Electric Co., Ltd. (72) Inventor Isao Umezawa 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Co., Ltd. (72) Inventor Fumitaka Urakawa 3-201 Minamiyoshikata, Tottori-shi, Tottori Sanyo Electric Tottori (72) Inventor Koji Maeda 3-201 Minamiyoshikata, Tottori City, Tottori Prefecture Tottori Sanyo Electric Co., Ltd.

Claims (6)

[Claims] 1. A card detachable from a slot of an electronic device provided with a first connector having a plurality of pins, the card being connected to a battery and a first connector connected to the first connector when the card is inserted into the slot. 2 and an external connection terminal that is not connectable to the first connector. One electrode of the battery is connected to the second connector, and the other electrode of the battery is connected to the external connection terminal. A card detachably attached to an electronic device, wherein the card is connected. 2. The electronic device according to claim 1, wherein the external connection terminal is disposed on a surface located in the electronic device when the card is inserted into a slot of the electronic device. Possible cards. 3. The card according to claim 1, wherein the card is PCMCIA /
A card detachable from an electronic device, which is compliant with JEIDA standards. 4. The electronic device according to claim 3, wherein a GND pin in the second connector is connected to a negative electrode of the battery, and the external connection terminal is connected to a positive electrode of the battery. Removable card. 5. The card according to claim 1, wherein said external connection terminal has a different position corresponding to an output voltage of said battery. 6. A PCMCIA having a connector compliant with the PCMCIA / JEIDA standard, an external connection terminal, and a battery, wherein positive and negative electrodes of the battery are detachable from a card connected to the external connection terminal and the connector, respectively. / JEID
An electronic device having a card slot conforming to the A standard, wherein a PCMCIA / JEIDA which is connected to a connector of the card when the card is mounted in the slot.
An electronic device to which a card is mounted, comprising: a connector conforming to a standard; and a terminal connected to the external connection terminal.