JPH0416369Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a mounting structure for a thin battery.

[Technical background of the invention and its problems]

BACKGROUND ART Recently, batteries used as power batteries for small electronic devices have become extremely thin, and as a result, it has become possible to make electronic devices thin enough to be called card-shaped.

In addition to what is generally called a coin-type lithium battery, the thin battery mentioned above is also called a paper battery, which is sandwiched between positive and negative active material electrode plates. The battery is housed in a frame-shaped battery holder, and the battery holder is inserted from the side of the electronic device into the battery storage section within the device body, thereby making the thin battery replaceable within the device body.

Conventionally, the mounting structure for this thin battery has been such that a pair of conductive battery contact plates are provided on both sides of a frame-shaped battery holder to contact electrodes on both sides of the thin battery, and the thin battery housed in the battery holder is connected to the pair of conductive battery contact plates. A pair of battery connecting members are provided in the battery housing portion of the device main body to be sandwiched between the battery contact plates and to respectively contact each battery contact plate of the battery holder, and each battery contact plate of the battery holder is connected to each battery connecting member. A structure is adopted in which each electrode of the thin battery is electrically connected through the .

However, in the conventional battery mounting structure described above, each battery contact plate of the battery holder is brought into contact with each electrode of the thin battery, and each battery contact plate is brought into contact with each battery connection member of the battery storage section. Since the electrodes are electrically connected to each battery connecting member through each of the battery contact plates, not only must the battery holder be provided with the battery contact plate, but also the connection between the battery and the battery connecting member must be However, since the contact is made at two places: the contact between the battery electrode and the battery contact plate, and the contact between the battery contact plate and the battery connecting member, there is a problem in that the connection resistance of the battery is large.

[Purpose of invention]

This idea was devised in view of the above-mentioned circumstances, and its purpose is to bring the electrodes on both sides of the thin battery into direct contact with a pair of battery connecting members provided in the battery compartment in the main body of the device. This eliminates the need to provide a battery contact plate on the battery holder, reduces battery connection resistance, and allows the battery connection member to directly contact the electrodes on both sides of the thin battery. It is an object of the present invention to provide a mounting structure for a thin battery, which can reduce the height of the battery so as to reduce the thickness of an electronic device.

[Summary of the idea]

That is, in this invention, a pair of battery connecting members provided in a battery storage section in a device main body are arranged facing each other across the battery insertion position in the battery storage section, and are housed in the battery holder and inserted into the battery storage section. Inserting the thin battery to be inserted between the two battery connecting members,
The electrodes on both sides of the thin battery are brought into contact with both of the battery connecting members, and at least one of the battery connecting members has its battery facing portion directly superposed on the inner surface of the battery accommodating portion to be supported on the inner surface of the battery accommodating portion. In addition, this battery connecting member is fixed to the inner surface of the battery compartment at a portion that does not face the battery, and according to this invention, the electrodes on both sides of the thin battery are brought into direct contact with the battery connecting member of the battery compartment. Therefore, it is possible to eliminate the need to provide a battery contact plate on the battery holder and to reduce the connection resistance of the batteries.Moreover, at least one of the battery connecting members has its battery facing portion directly polymerized on the inner surface of the battery housing. Since the battery connecting member is supported by the lever on the inner surface of the battery accommodating portion and is fixed to the inner surface of the battery accommodating portion at a portion not facing the battery,
Even though the battery connecting member is brought into direct contact with the electrodes on both sides of the thin battery, the height of the battery storage portion can be reduced, allowing the electronic device to be made thinner.

[Example of idea]

An example of this invention will be described below.
A battery mounting structure in an electronic card called an IC card will be explained with reference to the drawings as an example.

The above-mentioned electronic card is used for multiple purposes such as credit, banking (deposits and savings), and reservations (air tickets, boarding tickets, reserved seat tickets, and hotel accommodation tickets).This electronic card is used for the following purposes. It is structured like this.

Figures 2 and 3 show the external appearance of the electronic card.
The size is the same as the flat dimensions of a credit card (85.5mm x 54) as specified by ISO, and the top side of this electronic card has the following as shown in Figure 2.
At the center of the lower edge are a usage selection key (A key) 2 for selecting the usage of the electronic card, and a history recall key (K key) for recalling and displaying history information such as transaction information stored in the electronic card. key) 3
In addition, a display section 4 for displaying the application selected by the application selection key 2 and the history information called up by the history call key 3 is provided at the upper edge of the card near the rear end. There is. In addition, as shown in FIG. 3, on the bottom side of this electronic card, a required number of card contacts are placed at the front end of the card and contact the card contacts provided on the bottom of the card insertion part of the card terminal device (not shown). Connection terminals 5, 5 are arranged in two rows.

To explain the structure of this electronic card, FIGS. 1 and 4 show cross sections taken along lines - and - in FIG. 2, and FIG. 5 shows the electronic card exploded.

This electronic card includes a wiring board unit 20, a liquid crystal display panel 40, and a thin battery 5 for power supply for use selection and history recall in a card body 1.
0, the liquid crystal display panel 40 is disposed near the rear end of the upper edge of the card body 1, and the thin battery 50 is housed below the liquid crystal display panel 40.

First, the card body 1 will be explained. The card body 1 is made up of a frame 10 made of synthetic resin that constitutes its outer circumference, an upper panel 11, and a lower panel 12. The upper panel 11 is
As shown in FIG. 1, the frame 1
It has a two-layer structure in which a top sheet 11b having the same size as the outer size of the top sheet 1 is laminated.
A double-sided adhesive sheet 11c is adhered to the lower surface of 1a. The top sheet 11b is made of a transparent resin sheet made of polyester or the like with blind printing, leaving a display window 4a, and keys for the application selection key 2 and the history call key 3 are provided at the center of the lower edge of the top sheet 11b. Indications 2a and 3a are printed (see Figure 5). Further, the upper sheet 11a is
In order to ensure the strength of the upper panel 11, it is made of a metal plate such as stainless steel, and this upper sheet 1
1a includes a display panel fitting opening 13 (see FIG. 1) corresponding to the display window section 4a of the top sheet 11b, and a key input section opening 14 (a fourth opening) corresponding to the key display printing section of the top sheet 11b. (see figure) is provided. Moreover, the double-sided adhesive sheet 11c
is the same size as the top sheet 11b, and this double-sided adhesive sheet 11c has an opening 1 corresponding to the display panel fitting opening 13 of the top sheet 11a.
3a and the key input section opening 1 of the upper sheet 11a.
An opening 14a corresponding to 4 is provided.

Further, as shown in FIGS. 1 and 5, the lower panel 12 has the frame 10 attached to the lower surface of the lower sheet 12a, which is slightly smaller than the outer diameter of the frame 10.
It has a two-layer structure in which a lower sheet 12b of the same size as the outer shape of the lower sheet 12 is laminated.
A double-sided adhesive sheet 12c is adhered to the upper surface of a. The lower sheet 12b is made of a resin sheet such as polyester.
2b is provided with openings 5a, 5a for exposing connection terminals 5, 5 provided on the lower surface of the wiring board unit 20 to the lower surface of the card. In addition, the lower sheet 12a is made of a metal plate such as stainless steel in order to ensure the strength of the lower panel 12, and the lower sheet 12a has holes for inserting terminals that provide relief for the connecting terminals 5, 5. opening 15,
15 are provided. The double-sided adhesive sheet 12c has the same size as the lower sheet 12a, and the double-sided adhesive sheet 12c has an opening 16 corresponding to the battery storage area A secured below the liquid crystal display panel 40. Openings 15a, 15a corresponding to the terminal insertion openings 15, 15 of the lower sheet 12a
is provided.

Further, the frame 10 is shaped so that its upper and lower surfaces are recessed, leaving the outer peripheral portion, and a portion corresponding to the battery storage portion is cut out to form a battery insertion portion 10a. The panel 11 and the lower panel 12 are arranged so that the outer peripheries of the upper sheet 11a and the lower sheet 12a are covered with the double-sided adhesive sheet 1.
1c and 12c to the upper and lower inner peripheral surfaces (recessed surfaces) of the frame 10, and the top sheet 1
1b and the outer periphery of the lower sheet 12b is attached to the frame 10.
It is attached to the upper and lower surfaces of the outer circumference and fixed to the frame 10 as shown in FIG.

Next, the wiring board unit 20 provided in the card body 1 will be explained. As shown in FIGS. 1 and 4, this wiring board unit 20 includes a main wiring board 21 and The main wiring board 21 and the sub wiring board 22 are of the same shape with cutouts corresponding to the liquid crystal display panel 40 and the battery compartment A therebelow. It is said that The main wiring board 21 is
A predetermined pattern of wiring (not shown) is formed on the lower surface of the main board 21.
Each opening 5a, 5a provided in the lower sheet 12b
A required number of connection terminals 5, 5 are disposed in a portion corresponding to , and a large number of display panel connection terminals (not shown) are arranged in an array on the edge facing the display panel placement portion. The connection terminals 5, 5 are fitted into the respective openings 5a, 5a of the bottom sheet 12b and are exposed on the bottom surface of the card as shown in FIG. The thickness of the lower panel 12 is approximately the same as that of the lower panel 12 so that the lower panel 12 is substantially flush with the lower panel 12.

In addition, this main wiring board 21 has four
An IC chip (CPU chip, expansion I/O port chip, display drive chip, EEP-ROM chip) 23 and chip parts (not shown) such as a chip capacitor are attached. These IC chips 23 and chip components are inserted into an opening 24 provided in the main wiring board 21 and housed within the thickness of the main wiring board 21, as shown in FIGS. 1 and 4. The chip 23 is connected to the wiring on the main wiring board 21 by wire bonding. In FIGS. 1 and 4, 25 is a bonding wire, and 26 is a sealing resin for sealing the IC chip mounting portion. This sealing resin 26 is applied to the IC chip mounting portion with the sub wiring board 22 polymerized and bonded to the upper surface of the main wiring board 21 on which the IC chip 23 is attached. They are fixed with a sealing resin 26 in a state where they are in contact with each other.

Further, the sub-wiring board 22 has, on its upper surface,
A pair of key contacts 27, 27 (see FIG. 5) are formed facing the key display printed portion of the top sheet 11b, and the key contacts 27, 2
Wirings 28, 28 are formed by leading out from 7, and these wirings 28, 28 are formed through through holes 29, 2 provided in the sub wiring board 22 and the main wiring board 21.
It is connected to the wiring of the main wiring board 21 via 9. The through holes 29, 29 are formed after the sub wiring board 22 is polymerized and bonded to the main wiring board 21, and the wiring between the sub wiring board 22 and the main wiring board 21 is made through the through holes 29.
By plating 9 and 29, they are connected via this plating layer 30 (see FIG. 4).

On the other hand, a liquid crystal partial panel 40 is connected to the display panel connection terminal array portion of the main wiring board 21 via a flexible connector 41 (see FIG. 5), and the main wiring board connection end of the flexible connector 41 is , are covered by a sub-wiring board 22.

The wiring board unit 20 and the liquid crystal display panel 40 connected to its main wiring board 21 are fitted into the frame 10 of the card body 1 as shown in FIG. The upper and lower surfaces of the upper panel 1, that is, the upper surface of the sub wiring board 22 and the lower surface of the main wiring board 21, are the upper surface of the upper panel 1.
1 and the lower panel 12 with the double-sided adhesive sheet 1
1c and 12c, and the liquid crystal display panel 40 is adhesively fixed with a transparent adhesive with its upper surface facing the display window 4a of the upper sheet 11b of the upper panel 11. In addition,
The double-sided adhesive sheet 12c on the lower panel 12 side has relief holes for the IC chip sealing resin 26 protruding from the lower surface of the main wiring board 21, corresponding to each IC chip mounting portion of the main wiring board 21. Openings 17, 17 are provided as shown in FIG. The IC chip sealing resin 31 is inserted into the main wiring board 21 and is bonded to the main wiring board 21 as shown in FIGS. 1 and 4 with the protruding portion of the IC chip sealing resin 31 contained within the thickness of the double-sided adhesive sheet 12c.

Further, in FIG. 4, 27a is a movable key contact opposite to the key contact 27 on the upper surface of the sub-wiring board 22, and this movable key contact 27a is coated with carbon ink, for example, on the lower surface of the key display printed portion of the upper sheet 11b. It is formed by printing. This movable key contact 27a is brought into contact with the key contact 27 by pressing the key display printed portion of the top sheet 11b. A key input section and a history recall key input section are configured.

Further, in FIGS. 2 and 3, numeral 31 is a sliding power switch (commercially available ultra-small slide switch) provided on the side surface of the rear end side of the card body 1 in line with the battery insertion part 10a. 31 is a recessed groove 33 provided in the frame 10.
The terminals 31a, 31a are connected to the wiring board unit 2.
It is connected by soldering to terminal electrodes 32, 32 formed on the side surfaces of 0.

Next, the thin battery 50 used as a power supply battery for application selection and history recall will be explained. This thin battery 50 has a horizontally long rectangular shape when viewed from above. A two-layer battery in which paper batteries 50a and 50b are stacked is used. FIG. 6 shows the structure of this two-layer thin battery. In the figure, 51 is a negative electrode plate forming the upper surface of the battery, 52 is a positive electrode plate forming the lower surface of the battery, and 53 is a positive electrode of the upper paper-like battery 50a. It is an intermediate electrode plate that serves as both a plate and a negative electrode plate of the lower paper-like battery 50, and the upper paper-like battery 50a and the lower paper-like battery 50b each have a negative electrode plate 51.
and the intermediate electrode plate 53 and between the intermediate electrode plate 53 and the positive electrode plate 52, metal lithium (negative electrode active material) 5
4 and manganese dioxide (positive electrode active material) 55 are stacked with a separator (polypropylene non-woven fabric impregnated with electrolyte) 56 sandwiched therebetween, and a negative electrode plate 51 and an intermediate electrode plate 53 are sandwiched.
It has a structure in which these are bonded together at their outer peripheries with a heat sealing material 57. The electromotive principle of the paper batteries 50a and 50b is the same as that of a generally known button-type lithium battery, so a description thereof will be omitted. In other words, this two-layer thin battery 5
0 is two upper and lower paper batteries 50a, 50b.
The total thickness of the two-layer thin battery 50 is approximately 0.9 mm.

To explain the structure of mounting this thin battery 50 in the card body 1, this thin battery 50 is housed and held in a frame-shaped battery holder 60, and this battery holder 60 is provided in the frame 10 of the card body 1. By inserting the card into the card body 1 through the battery insertion section 10a, the card is inserted into the battery storage section A below the liquid crystal display panel 40. The battery holder 60 is made of synthetic resin, and this battery holder 60 is shown in FIGS.
As shown in the figure, the thin battery 50 consists of a frame-shaped battery holding part 60a with open upper and lower surfaces that is large enough to fit almost tightly into the battery holding part 60a, and a grip part 60b formed at the base end of the battery holding part 60a. This knob portion 60b has a thickness such that its upper and lower surfaces slightly protrude from the upper and lower surfaces of the battery holder 60a. Note that this battery holder 60 is connected to the battery insertion section 10.
In order to facilitate insertion from point a, both sides and the bottom surface of the distal end are tapered to reduce the width and thickness of the distal end. This battery holder 60 is pushed into the battery storage part A (the space in the notch of the wiring board unit 20) in the card body 1 from the battery insertion part 10a, and the battery holder 60 is inserted into the battery storage part A (the space in the cutout part of the wiring board unit 20).
is completely inserted into the card body 1 and the grip part 60b
It is designed to be inserted until the outer surface of the card body 1 is flush with the outer surface of the card body 1.
The upper surface side of 0b is the upper panel 1 of the upper panel 11.
1a, and the lower surface side of the knob portion 51b is connected to the lower sheet 12a of the lower panel 12 and the lower sheet 1.
It is designed to fit into notches 19a and 19b (see FIG. 5) formed at the edge of 2b. In addition,
The lower surface of this knob portion 60b is substantially flush with the lower surface of the card body 1.

On the other hand, in FIGS. 1 and 5, 61, 6
Reference numeral 2 denotes battery connecting members disposed on the upper and lower inner surfaces of the battery storage section A in the card body 1, facing each other across the battery insertion position, and these battery connecting members 61 and 62 are
It is made of an ultra-thin conductive metal plate that can be bent and deformed. The battery connecting members 61, 62 are horizontally elongated and have approximately the same surface area as the electrode plates 51, 52 on the upper and lower surfaces of the thin battery 50. Given the interval,
A plurality of protrusions 61a having a length spanning the entire width of the metal plate,
62a are formed at approximately equal intervals. The protrusions 61a, 62a are formed by bending the conductive metal plate into a mountain shape.
A itself is also elastically deformable. The protrusions 61a and 62a contact the electrodes on both sides (the negative plate 51 and the positive plate 52) of the thin battery 50, which is housed in the battery holder 60 and inserted into the battery compartment A in the card body 1. , upper battery connection member 61
The protrusions 61a, 61a are protruded from the lower surface side of the metal plate 61, and the protrusions 61a of the lower battery connecting member 62 are
2a and 62a protrude from the upper surface side of this metal plate 62.

Further, both ends of the upper and lower battery connecting members 61 and 62 are extended outward from the portions facing the thin battery 50, and these two battery connecting members 6
1 and 62 have one end connected to a battery connection terminal (not shown) formed on the upper and lower surfaces of the wiring board unit 20 (the upper surface of the sub wiring board 22 and the lower surface of the main wiring board 21). The upper battery connecting member 61 connects the battery facing portion to the liquid crystal display panel 4.
This liquid crystal display panel 4 is polymerized directly onto the bottom surface of 0.
0, and is installed on the upper inner surface of the battery compartment A with both ends fixed to the upper sheet 11a of the card main body upper panel 11 with a double-sided adhesive sheet 11c. That is, the wiring board connecting end of the upper battery connecting member 61 is adhered to the double-sided adhesive sheet 11c and fixed to the upper sheet 11a, and the other end is attached to the upper sheet 11a and the double-sided adhesive sheet 11c. It is sandwiched between them and is fixed in contact with the surface of the upper sheet 11 made of a metal plate by a double-sided adhesive sheet 11c. Note that an opening 18a is formed as an escape for the wiring board connection portion of the upper battery connection member 61 of the double-sided adhesive sheet 11c, and the upper battery connection member 6
The connecting end of the wiring board 1 enters into this opening 18a and is housed within the thickness of the double-sided adhesive sheet 11c. Further, the lower battery connecting member 62 is installed on the lower inner surface of the battery storage portion A, facing the upper battery connecting member 61. This lower battery connecting member 62
Insert the part facing the battery into the lower panel 1 of the card body.
By inserting it into the opening 16 formed in the double-sided adhesive sheet 12c on the inner surface of 2, it is directly superposed on the surface of the lower sheet 12a made of a metal plate and is supported by this lower sheet 12a, and the wiring board connection end side thereof and the other end thereof are adhered onto a double-sided adhesive sheet 11c and fixed to the lower sheet 12a. Note that the double-sided adhesive sheet 12c on the lower panel 12 side is also formed with an opening 18b that serves as an escape for the wiring board connection part of the lower battery connection member 62, and the opening 18b is formed to provide relief for the wiring board connection part of the lower battery connection member 62. The ends are also accommodated within the thickness of this double-sided adhesive sheet 11c.

In this way, the battery facing portion of the upper battery connecting member 61 is directly superposed on the lower surface of the liquid crystal display panel 40 and is supported by this liquid crystal display panel 40, and the battery facing portion of the lower battery connecting member 62 is directly superposed on the lower surface of the liquid crystal display panel 40, and the battery facing portion of the lower battery connecting member 62 is directly superposed on the lower surface of the liquid crystal display panel 40. The cell connecting members 61 and 62 are directly superposed on the surface of the lower sheet 12a and supported by the lower sheet 12a, and the battery connecting members 61 and 62 are fixed to the upper panel 11 and the lower panel 12 of the card body 1 at both ends thereof. When the battery facing parts of these battery connecting members 61 and 62 are fixed to their supporting surfaces (the lower surface of the liquid crystal display panel 40 and the upper surface of the lower sheet 12a of the lower panel 12) via a double-sided adhesive sheet, the card body 1 This is because the thickness of the battery connecting members 61, 62 becomes thick, and as described above, the battery facing parts of the battery connecting members 61, 62 are directly polymerized on their supporting surfaces, and the battery connecting members 61, 62 are connected to both ends thereof, that is, the battery 50. If it is fixed to the upper panel 11 and the lower panel 12 at the part that does not face the upper panel 11 and the lower panel 12, the distance between the upper and lower surfaces of the battery compartment A (the distance between the lower surface of the liquid crystal display panel 40 and the upper surface of the lower sheet 12a) can be reduced (thinner). (close to the thickness of the battery 50), the thickness of the card body 1 can be made thinner.

In addition, the protruding portion 61a of the upper battery connecting member 61,
61a and the protrusion 62 of the lower battery connecting member 62
a and 62a are formed to face each other with a 1/2 pitch shift, and the distance between the protrusions 61a and 62a of both battery connecting members 61 and 62 is as follows.
The thickness is slightly smaller than the thickness of the thin battery 50.

Then, the thin battery 50 that is housed in the battery holder 60 and inserted into the battery housing part A is elastically deformed by pushing the battery holder 60 strongly into the protrusions 61a and 62a of both battery connecting members 61 and 62. The battery connecting members 61 and 62 are press-fitted in this way, and in this way, the battery storage part A
The thin battery 50 inserted therein is directly electrically connected to both battery connecting members 61 and 62 at the protrusions 61a and 62a that contact the electrodes on both sides thereof, and the protruding parts 61 of both battery connecting members 61 and 62
It is held under pressure between a and 62 by its elasticity. As shown in FIG. 1, a hook groove 60c is provided on the lower surface of the tab 60b of the battery holder 60. To remove the battery holder 60 when replacing the battery, insert your toe into the hook groove 60c. This is done by hooking the battery holder 51 and pulling it strongly.

Moreover, the battery holding portion 60a of the battery holder 60
The thickness of the thin battery 50 is slightly smaller than that of the thin battery 50 (approximately 0.8 mm). In this way, the thickness of the battery holding part 60a of the battery holder 60 is adjusted to the thickness of the thin battery 5.
The battery holder 60 is thinner than the thickness of 0.
When inserting and removing the battery holder 6, the battery connecting members 61 and 62 on the upper and lower surfaces of the battery compartment
1a, 62a and the lower panel fixing part a of the lower battery connecting member 62 (the part that is higher than the battery facing part of the battery connecting member 62). Holder 6
Since the battery holder 60 does not come into contact with the battery connection members 61 and 62 and receive resistance when inserting and removing the battery holder 60, the resistance to the insertion and removal of the battery holder 60 is reduced by the thin battery 50 and the battery connection member 6.
Assuming only the sliding resistance with 1 and 62, the battery holder 6
0 can be inserted and extracted smoothly.

The height of the battery compartment A, that is, the distance between the bottom surface of the liquid crystal display panel 40 and the top surface of the lower sheet 12a is determined based on the thickness of the thin battery 50 (approximately 0.9 mm) and the protrusions 61a and 62a on the thin battery 50. Upper and lower battery connecting members 61, 62 in a state of contact and elastic deformation
The thickness including the protrusions 61a and 62a (approximately
0.1 mm), and the thickness of the card body 1 is the height of the battery compartment A of approximately 1.0 mm, the thickness of the liquid crystal display panel 40 of approximately 0.5 mm, and the thickness of the upper panel 11.
The thickness is the sum of the thickness of the top sheet 11b and the thickness of the bottom sheet 12a and bottom sheet 12b of the bottom panel (the thickness of the wiring board unit 20 is such that it fits between the top panel 11 and the bottom panel 12). ), the thickness of the electronic card above is approx.
It is 1.8mm. Although this electronic card is slightly thicker than a single-purpose electronic card without a display or key input section, it can be easily inserted into a card terminal device.

Next, to explain the circuit configuration of the above-mentioned electronic card, in Fig. 7, 70 is a CPU;
Connected to the CPU 70 are connection terminals 5, 5 that contact the card contact section of the card terminal device, an application selection key 2, a history call key 3, and a display drive section 71.
Memory calculation section 72, application specification section 73 and EEP-
ROM74 is connected. This EEP-ROM
74 memorizes a personal identification number (hereinafter referred to as PIN),
Input information entered via the card terminal device from the keyboard connected to the card terminal device (PIN code entered by the cardholder)
It has a PIN verification section 74a that compares the PIN with the PIN and outputs a match or mismatch signal, and a balance storage section 74b that stores history information such as the usage history of the card, that is, information on transactions made using the card. . Further, the usage specifying section 73 stores usage data such as credit, banking, reservation, etc. Note that 75 is a power source.

To explain the operation of this circuit, the application selection key 2 is operated to select the application of the electronic card. When the power switch 31 is turned on and the application selection key 2 is operated, the application selection key is input to the CPU 70. is given, and the first usage data among the usage data stored therein is read out from the usage designation section 73. This usage data is held in the storage calculation section 72 and is also sent to the display drive section 71 to be displayed on the display section 4. Note that this operation is repeated by operating the application selection key 2, and each time the application selection key 2 is operated, application data is sequentially read from the application specification section 73 and stored in the storage calculation section 72. As the usage data code is updated, the display on the display unit 4 is also changed. Therefore, by operating the usage selection key 2 until the desired usage is displayed on the display unit 4, the usage of the card can be selected as the desired usage, and the selected usage data can be stored in the storage calculation unit 72. I can do it.

The above-mentioned usage selection is made when the electronic card is used, and the electronic card selected for the desired usage, such as credit card usage, is inserted into the card terminal device.

When the electronic card is inserted into the terminal device and its connection terminals 5, 5 are brought into contact with the card contact portion of the terminal device, a reset signal is sent from the terminal device to the card and the CPU 70 is reset.
is reset (however, the usage data stored in the storage calculation unit 72 and the usage display on the display unit 4 remain as they are), and the answer is returned from the card to the terminal device. When this answer is sent to the terminal device, the terminal device sends it to the card.
The TC code is sent from the card to the memory calculation section 72.
The usage data stored in is sent to the terminal device. The terminal device checks this usage data and, if the usage data is suitable, displays an instruction to input the password on the display section of the terminal device. Then, when the card owner inputs a PIN number from a keyboard connected to the card terminal device, this input information (PIN number) is sent from the terminal device to the card. This input information is stored in the password verification section 74 of the EEP-ROM 74.
a and is compared with the PIN stored in this PIN verification section 74a. If both match, a match signal is sent, and if they do not match, a mismatch signal is sent from the card to the terminal device. The match or mismatch of this PIN number will be displayed on the display of the terminal device.
Displayed as OK or NG.

Here, if the transaction is OK, the store clerk inputs transaction information such as the amount of the product to be purchased by the customer (card holder) into the terminal device from the keyboard section. Transaction information entered into this terminal device is sent from the terminal device to the card.
The card sends this transaction information to the balance storage section 74b of the EEP-ROM 74 and stores it in its credit storage area. This is the same when using an electronic card for banking, reservations, etc. For example, if you select the purpose of the card for banking and use it as a banking card, the information sent from the terminal device (deposit/withdrawal etc.) information) is stored in the banking storage area of the balance storage section 74b, and when the purpose of the card is selected for reservation and used as a reservation card, information (reservation information, amount information, etc.) sent from the terminal device is stored in the banking storage area of the balance storage section 74b. is stored in the reservation storage area of the balance storage section 74b.

Note that the card storing transaction information and the like is removed from the terminal device after the operation of the terminal device is completed.

The electronic card also has a function of displaying historical information such as transaction information stored in the balance storage section 74b on the display section 4. When the history recall key 3 is operated with the purpose of the card selected, for example, for credit, the information stored in the credit storage area is read out from the balance storage section 74b in the order in which it is stored and displayed on the display section 4 in sequence. When the history recall key 3 is operated with the card usage selected for banking, the information stored in the banking storage area of the balance storage section 74b is sequentially displayed on the display section 4,
When the history call key 3 is operated with the purpose of the card selected for reservation, the information stored in the reservation storage area of the balance storage section 74b is sequentially displayed on the display section 4. Therefore, according to this electronic card, even if you forget the amount of accounts payable, deposit amount, reservation details, etc. made using the card, you can arbitrarily recall the history information stored on the card and use the card. You can know the usage history by application.
Note that the above history information is displayed for a certain period of time (1 to 2
It may be configured to switch automatically every second), or
Further, the next information may be displayed each time the history call key 3 is operated.

Therefore, in the above electronic card, the mounting structure of the thin battery 50 used as a power supply battery for selecting the application and recalling the history is as described above, that is, a pair of batteries provided in the battery storage section A in the card body 1. The connecting members 61 and 62 are arranged opposite to each other in the battery storage section A with their battery insertion positions sandwiched therebetween, and the thin battery 50 that is housed in the frame-shaped battery holder 10 and inserted into the battery storage section A is connected to both of the battery connection members. 61,6
2, so that the electrodes on both sides of the thin battery 50 are brought into contact with both battery connecting members 61, 62, and the battery connecting members 61, 62 are inserted directly between the battery housing portion A with their battery facing parts. By polymerizing and supporting the battery connecting members 61 and 62 on the inner surface of the battery housing at the portions not facing the battery 50, the electrodes on both sides of the thin battery 50 are connected to the battery. Since it is brought into direct contact with the battery connecting members 61 and 62 of the storage section A, there is no need to provide a battery contact plate on the battery holder as in the conventional case, and the connection resistance of the thin battery 50 can also be reduced. Moreover, in the battery mounting structure described above, the battery connecting members 61, 6
2, directly polymerizes its battery facing part onto the inner surface of the battery storage section A and supports it on the inner surface of the battery storage section,
Since the battery connecting members 61 and 62 are fixed to the inner surface of the battery storage portion at the portions that do not face the battery 50, the battery connecting members 61 and 62 are brought into direct contact with the electrodes on both sides of the thin battery 50. However, by reducing the height of the battery storage section A, the electronic card can be made thinner.

In the above embodiment, the battery storage section A is provided under the liquid crystal display panel 40, but the battery storage section A may be provided at another location, and the battery holder 60 may be placed in contact with the battery. Battery connection members 61, 6
If the protruding parts 61a, 62a of 2 and the part corresponding to the fixed part a which is higher than the battery facing part are thinner than the thin battery 50, the battery holder 60
Since the battery holder 60 does not hit the protruding parts 61a, 62a and the fixed part a of the battery connecting members 61, 62 when inserting and removing the battery holder 6,
Both side portions of 0 may have approximately the same thickness as the thin battery 50. Furthermore, in the above embodiment, a pair of battery connecting members 61 and 62 contact each electrode of the battery 50.
are brought into contact with the electrodes of the battery 50 at the protrusions 61a, 62a formed thereon, but the battery connecting members 61, 62 are designed so that the protrusions 61a, 62a are eliminated and the battery 50 is brought into surface contact. Alternatively, one of the pair of battery connecting members 61 and 62 may be a leaf spring member that presses the thin battery inserted between the battery connecting members into contact with the other battery connecting member. .

In addition, in the above embodiment, a battery mounting structure in an electronic card called a multi-purpose IC card was explained, but this invention is applicable to small electronic devices such as a card-shaped small electronic calculator and a card-shaped small radio receiver. Of course, it can also be applied to the mounting of thin batteries in.

[Effect of idea]

In this invention, a pair of battery connecting members provided in a battery storage section in a device main body are disposed opposite to each other across the battery insertion position in the battery storage section, and are housed in the battery holder and inserted into the battery storage section. A thin battery is inserted between the battery connecting members, and the electrodes on both sides of the thin battery are brought into direct contact with the battery connecting members, which eliminates the need to provide a battery contact plate on the battery holder and prevents the battery from leaking. Connection resistance can also be reduced, and at least one of the battery connecting members can be directly polymerized with its battery-facing portion on the inner surface of the battery storage portion to be supported on the inner surface of the battery storage portion. is fixed to the inner surface of the battery compartment at the part that does not face the battery, so the height of the battery compartment can be reduced even though the battery connecting member is brought into direct contact with the electrodes on both sides of the thin battery. This allows electronic devices to be made thinner.

[Brief explanation of drawings]

The drawings show one embodiment of this invention; Fig. 1 is an enlarged sectional view taken along the - line in Fig. 2;
Figure 3 and Figure 3 are external views of the electronic card that adopts the battery mounting structure of this invention as seen from the top and bottom sides, Figure 4 is an enlarged sectional view taken along the - line in Figure 2, and Figure 5 is an electronic card that uses the battery mounting structure of this invention. FIG. 6 is an exploded perspective view of the card, FIG. 6 is an enlarged sectional view of the thin battery, and FIG. 7 is a block diagram showing the circuit configuration of the electronic card. 1...Card body, A...Battery compartment, 50...
...thin battery, 51, 52... polar plate, 60... battery holder, 61, 62... battery connection member.

Claims (1)

[Scope of utility model registration request] Mounting of a thin battery, in which a thin battery is housed in a frame-shaped battery holder and inserted into a battery storage part in a device main body, and electrodes on both sides of the thin battery are connected to a pair of battery connection members provided in the battery storage part. In the structure, the pair of battery connecting members are arranged opposite to each other across the battery insertion positions in the battery housing, and the thin battery that is housed in the battery holder and inserted into the battery housing is placed between the battery connecting members. the electrodes on both sides of the thin battery are brought into contact with both battery connecting members, and at least one of the battery connecting members is
The battery facing portion is directly polymerized on the inner surface of the battery storage portion to be supported by the inner surface of the battery storage portion, and the battery connecting member is fixed to the inner surface of the battery storage portion at a portion not facing the battery. Mounting structure of thin battery.