JPH0227501Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a structure of a battery storage part of a small electronic device.

[Background of the idea]

In recent years, small electronic devices such as small electronic calculators that use batteries as well as AC power sources are equipped with connectors for connecting external devices such as printers, floppy disks, displays, and magnetic cassettes.

However, in the case of conventional small electronic devices, the battery compartment that houses the power supply battery and the connector that connects external devices are provided separately in the device case, which limits the ability to miniaturize the device. It was hot.
In particular, when the external device is a floppy disk, a connection pack equipped with a floppy disk controller is used as the external connector to connect to the connection connector on the device case, so the connection pack must be stored in the device case. There was a problem in that a holding space had to be provided to hold the device, and this space was extremely large.

[Purpose of invention]

This idea was developed against the background of the above-mentioned circumstances, and by sharing the storage space for storing either the power supply battery or the external device connection pack, the device can be made smaller and more portable. It is an object of the present invention to provide a structure for a battery storage part of a small electronic device, which allows a convenient device to be obtained.

[Key points of the idea]

In order to achieve the above-mentioned purpose, this invention forms a storage space in the case to store either the power supply battery or the external device connection pack, and the case contains the stored battery. By providing a battery terminal plate to which the electrodes are connected and a connection connector to which a connection pack housed in place of the battery is connected, the storage space can be shared.

[First Embodiment] Hereinafter, FIGS. 1 to 8 will show an example in which this invention is applied to a personal computer.
This will be explained with reference to the figures.

FIG. 1 shows the configuration of a personal computer, and numeral 1 in the figure is a small electronic calculator. This small electronic calculator 1 can be connected to a floppy disk 2 as an external device via a connection pack 3, as well as an AC adapter 4.
This AC adapter 4 can be connected to an AC power source via a plug 5. In this case, the connection pack 3 of the floppy disk 2 is configured to be detachably attached to the battery storage section 6 of the small electronic calculator 1, which will be described later, and the AC adapter 4 is connected to the AC adapter of the small electronic calculator 1. It is designed to be detachably connected to the jack 7.

FIG. 2 shows the external appearance of the small electronic calculator 1. This small electronic calculator 1 consists of an upper case 8 and a lower case 9, and the upper case 8 is provided with an input section 10 in which a large number of key buttons 10a are arranged, and a display section 11 that displays predetermined information. The lower case 9 is provided with a battery storage section 6 and an AC adapter jack 7.

FIG. 3 shows a battery storage section 6 provided in the small electronic calculator 1. As shown in FIG. This battery storage section 6 is for detachably storing either a battery box 13 or a connection pack 3, which will be described later, through an opening 12 formed in the lower case 9, and a storage space is provided inside the lower case 9. 14 are provided. This storage space 14 corresponds to the opening 12, and includes a pair of guide walls 15a, 15b integrally formed from the inside of this opening 12 toward the inside of the lower case 9, and this guide wall 15a,
A bracket 16 spanned over the lower end of 15b,
It is surrounded by a circuit board 17 that spans the upper ends of guide walls 15a and 15b. in this case,
Of the guide walls 15a and 15b, one guide wall 15a has a groove 15c formed in the horizontal direction, and battery terminal plates 18a and 18b are formed in this groove 15c.
is attached so as to be biased toward the front side (opening 12 side). In addition, each of the guide walls 15a, 15b
The rear end portions of the connectors are bent in opposite directions, and a connecting connector 19 is attached between each of the bent rear end portions facing the opening 12 extending to the outside. Further, on the upper surface of the bracket 16, rectangular recesses 16a, 16a are formed close to the opening 12. Furthermore, a flange 12a is formed integrally with the lower case 9 around the opening 12, and holes 12b are formed on both sides of the upper part of the flange 12a.

FIG. 4 shows the battery box 13 housed in the battery housing section 6. As shown in FIG. This battery box 13 is
A plurality of batteries 20 are stored in two rows, and are detachably stored through the opening 12 of the battery storage section 6. That is, the battery box 13 is a long and narrow box with an open top.
Its height t ₁ is approximately equal to the height T of the opening 12;
Its width w ₁ is approximately equal to the length W of the opening 12;
Further, its depth l ₁ is formed shorter than the length from the opening 12 to the connection connector 19 in the storage space 14, for example, the height t ₁ is 22 mm and the width w is
105mm, length l ₁ is set to dimensions such as 40-50mm. In this case, the front side wall 1 of the battery box 13
3a is formed to be large such that the peripheral portion thereof closes the opening 12 by contacting the flange 12a. Furthermore, elastic engaging portions 21 that removably engage with the recesses 16a of the bracket 16 are formed at the lower end of the front side wall 13a, and collar portions are formed at both upper ends of the front side wall 13a. A protrusion 22 that fits into the holes 12b, 12b of 12a,
22 is formed.

On the other hand, an electrode connecting piece 23 is attached to the left inner wall 13b of the battery box 13 to connect the batteries 20 stored in two rows in series. Further, on the right side wall 13c of the battery box 13, an electrode terminal piece 24 that contacts the positive electrode of the batteries 20 connected in series and an electrode terminal piece 25 that contacts the negative electrode are attached adjacent to each other. ing. That is, each of the electrode terminal pieces 24 and 25 has contact arms 24a and 25a having spring properties bent at their ends, respectively, and these contact arms 24a and 25a are formed on the right side wall 13c of the battery box 13. The contact arms 24a, 25a protrude outward through the notches 26a, 26b, and are mounted so as to sandwich the right side wall 13c between the protruding contact arms 24a, 25a.

Therefore, the battery box 13 is
When the battery d is inserted into the opening 12 of the battery storage section 6 and pushed into the storage space 14, the left and right side walls 13b and 13c are guided by the guide walls 15a and 15b, and the battery is attached to the right side wall 13c. Each contact arm 24a, 25a of the electrode terminal pieces 24, 25 moves along the groove 15c of the guide wall 15a, and is housed in the battery housing section 6.

FIG. 5 shows the battery box 13 housed in the battery housing section 6. As shown in FIG. That is, in the battery box 13, the front side wall 13a is connected to the flange 12 of the opening 12.
a to close the opening 12, the elastic engaging parts 21 formed at the lower end of the front side wall 13a engage with the recesses 16a of the bracket 16, and the elastic engaging parts 21 formed at the upper ends of the front side wall 13a respectively engage with the recesses 16a of the bracket 16. protrusion 22,
22 fits into the holes 12b, 12b of the collar portion 12a. The contact arms 24a, 25a of the electrode terminal pieces 24, 25 attached to the right side wall 13c of the battery box 13 are connected to the battery terminal plate 18a, which is attached to the groove 15c of the guide wall 15a in the battery storage section 6, 18b, respectively. In this case, the battery terminal plate 18a has an electrode terminal piece 2
The contact arm 24a of the electrode terminal piece 25 is in contact with the battery terminal plate 18b, and the positive electrode of the battery 20 in the battery box 13 is connected through this contact arm 24a of the electrode terminal piece 25. The negative electrodes of the batteries 20 are connected through this.
When the battery box 13 is stored in the battery storage section 6 as described above, the battery box 1
3 is placed in the storage space 14 without contacting the connector 19 with a predetermined gap therebetween.

FIG. 6 shows the connection pack 3 of the floppy disk 2. This connection pack 3 has a flat box shape, has a floppy disk controller (not shown) inside, and is connected to the floppy disk 2 by a cord 3b. After taking out the battery, the battery is inserted into the battery storage section 6 through the opening 12 instead of the battery box 13, and detachably attached to the connector 19. That is, connection pack 3
has a thickness t ₂ approximately equal to the height T of the opening 12 of the battery compartment 6, a width w ₂ approximately equal to the length W of the opening 12, and a length l ₂ of the opening 12.
It is formed longer than the length from to the connection connector 19 in the storage space 14. For example, thickness
The dimensions are set such as t ₂ is 22 mm, width w ₂ is 105 mm, and length l ₂ is 190 mm. In addition, the connection pack 3 is
The tip of the substrate 27 is opened, and the tip of the substrate 27 having a large number of electrode patterns 27a is arranged inside the opening 3a, and the connecting connector 19 is removably inserted into the opening 3a. 1
9 and each electrode pattern 2 of the substrate 27
7a... are electrically connected to the connection connector 19.

FIG. 7 shows a state in which the connection pack 3 is installed in the battery storage section 6. That is, the connection pack 3 is
After removing the battery box 13 from the battery compartment 6, insert the leading end of the connection pack 3 into the opening 12 and push it into the battery compartment 6, the side surface of which will be guided by the guide walls 15a, 15b. , the connection connector 19 arranged on the back side of the storage space 14 is inserted into the opening 3a at the tip of the connection pack 3,
It is held by this connector 19 and electrically connected. In this manner, when the connection pack 3 is installed in the battery storage section 6, the floppy disk 2 and the small electronic calculator 1 are electrically connected via the connection pack 3. In addition, since the length l ₂ of the connection pack 3 is longer than the length from the opening 12 to the connection connector 19, the connection pack 3 protrudes from the opening 12 to the outside.

FIG. 8 shows the circuit configuration of the small electronic calculator 1. One end _S1 of the power switch SW is the fixed contact 7a of the AC adapter jack 7, and the jack 7
In addition to being connected to a contact 7c that opens when the jack 7 is connected to the AC adapter 4 in conjunction with the movable contact 7b of the・Data transmission type interface circuit) 30 respectively. Further, the other end _S2 of the power switch SW is connected to the ground level side and the negative electrode side of the power source battery 20 (battery terminal plate 18b in the battery storage section 6).

Positive electrode side of battery 20 (battery terminal plate 18a)
is connected to the emitter side of the switching transistor Tr. This transistor Tr is
It is a PNP type transistor, and its collector output is a reverse current prevention diode connected in the forward direction.
It is supplied to the small power supply circuit 29 via _Di1 . Further, the base of the transistor Tr is connected to the output side of the AC adapter 4 via a resistor _R1 .
Note that _R2 is the bias resistance of the transistor Tr.

The output of the AC adapter 4 is connected to the high power power supply circuit 28
is directly supplied to the small power supply circuit 2.
9 is a reverse current prevention diode connected in the forward direction.
Powered via Di ₂ .

The small power supply circuit 29 is a basic logic circuit 31
It supplies power supply voltage to the This basic logic circuit 31 constitutes a basic functional circuit of the small electronic calculator 1, and includes, for example, a CPU (central processing unit), a RAM (random access memory), a display section 11, an input section 10, and others. It is a low power consumption circuit that can be driven by the output voltage of the power supply battery 20. Further, the high-power power supply circuit 28 supplies a power supply voltage to the connection connector 19 in the battery storage section 6 via the floppy disk control buffer circuit 30. In this case, a floppy disk 2 as an external device is connected to the connection connector 19 via a connection pack 3 installed in the battery storage section 6 instead of the battery box 13 containing batteries 20. Further, the buffer circuit 30 and the basic logic circuit 31 are connected to each other, and the basic logic circuit 31
Data is exchanged between the floppy disk 2 and the floppy disk 2.

Next, a case will be described in which a personal computer as described above is used.

First, when the small electronic calculator 1 is driven by the batteries 20, the battery box 13 is stored in the battery storage section 6 provided in the lower case 9 of the small electronic calculator 1. That is, as shown in FIGS. 4 and 5, batteries 20 are arranged in two rows in advance in the battery box 13, with their positive electrodes in contact with the electrode terminal piece 24, and their negative electrodes in contact with the electrode terminal piece 24. 25. Then, the battery box 13 is pushed inward through the opening 12 of the battery storage section 6, and the front side wall 13a of the battery box 13 is brought into contact with the flange 12a of the opening 12, thereby closing the opening 12. Then,
The elastic engagement portions 21 of the battery box 13 engage with the recesses 16a, 16a of the bracket 16, and the protrusions 22, 22 engage with the holes 12b, 12b of the collar 12a, respectively.
12b, and thereby the battery box 13 is installed in the battery storage section 6. Then, the contact arms 24a, 25a of each electrode terminal piece 24, 25 come into direct contact with the battery terminal plates 18a, 18b attached to the guide wall 15a in the battery storage section 6, and as a result, the battery terminal plate 18a has no battery. The positive electrodes of the batteries 20... are connected via the electrode terminal pieces 24, and the negative electrodes of the batteries 20... are connected to the battery terminal plate 18b via the electrode terminal pieces 24.
5.

In this way, the battery box 13 is stored in the battery storage section 6 of the small electronic calculator 1, and
When the power switch SW is turned on with the contact 7c of the AC adapter jack 7 closed, the switching transistor Tr is turned on, and the output voltage of the battery 20...
The signal is supplied to the small power supply circuit 29 via the Tr and the diode Di ₁ (see FIG. 8). This results in
The basic logic circuit 31 is driven by batteries 20... In this state, the output voltage of the batteries 20... is cut off by the diode _Di2 , so the voltage of the batteries 20... is not supplied to the high power power supply circuit 28.

In addition, when connecting a floppy disk 2 which consumes a large amount of power to the small electronic calculator 1 as an external device and driving these devices with an AC power source, the battery box 13 is removed from the battery storage section 6 in advance. Instead, insert the connection pack 3 of the floppy disk 2 as shown in FIG. As shown in FIG. 7, the connection pack 3 is attached to the battery storage section 6. Then, the floppy disk 2 is connected to the small electronic calculator 1.

Thereafter, the plug 5 of the AC adapter 4 is connected to an AC power source, and the contact 7c of the AC adapter jack 7 is opened. Then, when the power switch SW is turned on in this state, the output voltage of the AC adapter 4 is changed to the high power power supply circuit 28 and the low power power supply circuit 29.
(See Figure 8). This results in
The floppy disk 2 connected to the basic logic circuit 31 and the connection connector 19 via the connection pack 3 is each driven by an AC power source. Note that in the above state, since the switching transistor Tr is turned off, for example, even if the battery box 13 is stored in the battery storage section 6 instead of the connection pack 3, the inside of the battery box 13 is The output voltage of the batteries 20 . . . is not supplied to the low power power supply circuit 29. That is, the batteries 20 are not consumed when connected to an AC power source.

As described above, according to the battery storage structure of the personal computer, the battery storage part 6 is provided in the lower case 9 of the small electronic calculator 1, and the battery 20 is provided in the storage space 14 of the battery storage part 6.
Battery terminal plates 18a, 18b to which the electrodes of ... are connected
and a connection connector 19 to which the connection pack 3 of the floppy disk 2 as an external device is connected, so that the storage space 14 can be shared and the battery 20...
...and the connection pack 3 can be stored, and the storage space 14 can be stored in this way.
Since the two devices share the same information, it is possible to reduce the size of the device, and it is also possible to obtain a device that is convenient to carry.

[Second Embodiment] Next, another embodiment will be described with reference to FIGS. 9 and 10. In this case, the same parts as in the first embodiment described above are given the same reference numerals, and the explanation thereof will be omitted.

FIG. 9 shows a battery storage section 40 provided in the lower case 9 of the small electronic calculator 1. As shown in FIG. This battery storage section 40 is for removably storing either a battery box 41 described later or the connection pack 3 described above through an opening 12 formed in the lower case 9, and is similar to the first embodiment described above. A storage space 42 is provided in substantially the same manner as in the above. That is, this storage space 42 has guide walls 15a, 1 formed on both sides corresponding to the opening 12.
5b and the bracket 43 spanning under it
and a circuit board 17 extending over it. In this case, the above bracket 4
Two guide grooves 44, 44 are formed on the upper surface of 3 from the opening 12 toward the back side. In the guide grooves 44, 44, elongated electrode terminal plates 45a, 45b having spring properties are provided, respectively. Furthermore, locking protrusions 46 are formed on the inner walls of the guide grooves 44, 44 on the rear side, respectively. Incidentally, a connecting connector 19 is attached to the inner end of the guide walls 15a, 15b, as in the first embodiment described above.

FIG. 10 shows a battery box 41 housed in the battery housing section 40. As shown in FIG. This battery box 41
The battery 20 is stored therein and is detachably stored in the storage space 42 through the opening 12 of the battery storage section 40, and its size, that is, the height t ₁ , the width w, and the depth l ₁ is formed similarly to the first embodiment described above. In this case, battery box 4
1 has a bracket 4 inside the battery storage section 40.
Guide portions 47, 47 are formed to protrude downward and are disposed and guided within guide grooves 44, 44 formed in 3. Locking hooks (not shown) that are releasably locked to the locking projections 46 of the guide grooves 44, 44 are formed on the inner side walls of the guide portions 47, 47, respectively. In addition, the batteries 20 stored in the left and right side walls of the battery box 41 are
Battery terminal pieces 48a, 48b that the electrodes of... come into contact with
(one not shown) can be attached. In this case, the battery terminal piece 48a is in contact with the positive electrode of the battery 20, and the other battery terminal piece 48a is in contact with the positive electrode of the battery 20...
b is in contact with a negative electrode. Also,
The battery terminal piece 48b is formed by bending a metal wire, and has an elastic contact portion 4 that comes into elastic contact with the negative electrode of the battery 20...
9a, an electrode terminal plate 45a in the battery storage section 40,
A contact portion 49b that contacts one side of 45b is formed. The contact portion 49b is connected to the battery box 4.
When the battery terminal piece 48b is attached to the side wall of the battery box 41, it protrudes downward through an opening (not shown) formed at the bottom of the battery box 41, and this protruding portion contacts one of the electrode terminal plates 45a and 45b when stored. I'm starting to do that.

Therefore, when the battery box 41 is pushed into the storage space 42 through the opening 12 of the battery storage part 40, the guide parts 47, 47 are guided by the guide grooves 44, 44 of the bracket 43, and the locking hooks are engaged. (not shown) are respectively locked by the locking protrusions 46 and stored in the battery storage section 6. Then,
Battery 20 stored in battery box 41...
, the positive and negative electrodes are battery terminal pieces 48a and 48, respectively.
The battery terminal plate 45 in the battery storage section 6 is connected to the battery terminal plate 45 through b.
a and 45b, respectively.

However, even with the battery housing structure as described above, the same effects as in the first embodiment described above can be obtained.

[Third Embodiment] Next, still another embodiment will be described with reference to FIGS. 11 and 12. Even in this case, the same parts as in the first embodiment described above are given the same reference numerals, and the explanation thereof will be omitted.

FIG. 11 shows a battery storage section 51 provided in the case 50 of the small electronic calculator 1. As shown in FIG. This battery storage section 51 is provided with a battery 2 as in the above-described embodiment.
0... and the connection pack 3, and includes an opening 12 formed in the side wall 50a of the case 50, an opening 52 formed in the bottom 50b of the case 50, and each of these openings. 12,5
2, and a storage space 53 provided within the case 50 corresponding to the case 50. In this case, the opening 12 is into which the connection pack 3 is inserted, as in the previously described embodiment. Further, the opening 52 is connected to the battery 2.
0... is inserted through the lid body 54, which will be described later.
is designed to be removably attached.
That is, the opening 52 is slightly longer than the opening 12;
Moreover, it is formed to have a large width, and a notch 52a is formed at the back edge. On the other hand, the storage space 53 includes an upper wall 50c of the case 50, side plates 53a, 53a hanging down toward both sides of the opening 52 formed in the upper wall 50c, and a lid attached to the opening 52. It is surrounded by a body 54. Furthermore, within the storage space 53, four guide plates 55 are suspended from the upper wall 50c of the case 50. This guide plate 55... has a battery 2
Two arcuate recesses 55a are formed for arranging and holding 0... in two rows.
In this case, the guide plates 55, 5 located on both the left and right sides
5 is adapted to guide both sides of the connecting pack 3 inserted through the opening 12. Further, the guide plates 55, 55 located in the middle are formed lower than those on both sides so that their lower ends contact the upper surface of the connection pack 3 and guide the connection pack 3 up and down. . Note that one side plate 53a surrounding the storage space 53 is provided with battery terminal plates 56a and 56b, respectively. Furthermore, a connector (not shown) is provided on the back side of the storage space 53, similar to the embodiment described above.

FIG. 12 shows the battery 20 and the lid 54 attached to the opening 52. This lid body 54
has a flat plate shape corresponding to the opening 52, and an engaging portion 57 is formed on one side of the plate to releasably engage elastically with the notch 52a of the opening 52, and the other side is formed with an engaging portion 57 that elastically engages with the notch 52a of the opening 52. Locking portions 58, 5 locked to the edge of the portion 52
8 is formed. Further, on the upper surface of the lid body 54, guide plates 59 corresponding to the respective guide plates 55 are erected. This guide plate 5
Similarly to the guide plates 55, two arc-shaped recesses 59a are formed in each of the guide plates 9. Also in this case, the guide plate 5 located in the middle
9 and 59 are formed lower than the guide plates 59 and 59 located on both sides.

Therefore, when storing the batteries 20 in the battery storage section 51, the batteries 20 are placed in the recesses 59a, 59a of the respective guide plates 59, 59 erected on the lid 54.
..., insert it into the storage space 53 through the opening 52 in this state, and insert the lid 54 into the opening 5.
2, the locking portions 58 are locked to the edges of the opening 52, and the engaging portion 57 is attached to the opening 52.
What is necessary is just to make it engage with the notch 52a of. Then, the lid body 54 is attached to the opening 52, whereby the batteries 20... are held within the storage space 53 by the respective guide plates 55..., 58...
The positive electrode of 0... is connected to the battery terminal plate 56a of the side plate 54, and the negative electrode is connected to the battery terminal plate 56b.

On the other hand, when connecting the connection pack 3 instead of the batteries 20..., first remove the lid 54 and take out the batteries 20, and then insert only the lid 54 into the opening 52 in the same manner as described above. Once attached, the connection pack 3 may be pushed into the interior through the opening 12 in this state, and its tip may be inserted into a connection connector (not shown) provided on the back side of the storage space 53. At this time, the connection pack 3 is attached to each guide plate 55.
. . , 58 .

According to the battery accommodating structure configured in this way, in addition to the same effects as those of the first embodiment described above, the battery 20...
Even if the thickness is large, there is an advantage that the storage space 53 of the battery storage section 51 can be used for the same purpose.

Although each of the above-mentioned embodiments has been described using the floppy disk 2 as an external device, this invention is not limited to this, and can be used with external devices such as a printer, display, magnetic cassette, or additional RAM pack. It can also be applied to the connection of an I/O device with a built-in power supply unit.

Further, this invention is not limited to the above-mentioned personal computer, but can be widely applied to other electronic devices.

[Effect of the invention] There is no need to provide a dedicated space outside the device case for a connector connected to an external device.

Since the connection connector is located on the back wall of the battery compartment, the connection pack is inserted all the way into the device body, which minimizes the possibility of the entire connection pack protruding outside the device case, making it easy to use when the battery is not stored. The space in the battery compartment can be used effectively as it is.

The connection surface of the connector provided on the back wall of the battery compartment is placed so as to face the opening of the battery compartment, so you can easily connect the external device by simply inserting the connection pack directly into the opening. Can be done.

[Brief explanation of drawings]

1 to 8 show a first embodiment in which this invention is applied to a personal computer,
Figure 1 is a configuration diagram of a personal computer, Figure 2
The figure is an external perspective view of a small electronic calculator, Figure 3 is a partially cutaway perspective view showing the battery compartment, Figure 4 is a partially exploded perspective view showing the battery box, and Figure 5 is the battery compartment in the battery compartment. Fig. 6 is a partially cutaway perspective view of the connection pack, Fig. 7 is a perspective view of the connection pack installed in the battery compartment, and Fig. 8 is a block diagram showing the circuit configuration of the small electronic calculator. , FIG. 9 and FIG. 10 show the second embodiment, FIG. 9 is a partially cutaway perspective view showing the battery storage section, FIG. 10 is a partially exploded perspective view of the battery box, and FIGS. 11 and 12. The figures show a third embodiment, in which FIG. 11 is an external perspective view of the battery storage section, and FIG. 12 is an external perspective view of the lid and battery. 1...Small electronic calculator, 2...Floppy disk, 3...Connection pack, 6, 40, 51...Battery compartment, 9...Lower case, 12, 52...Opening, 14, 42, 53... ...storage space, 18
a, 18b, 45a, 45b, 56a, 56b...
...Battery terminal board, 19... Connection connector, 20...
battery.

Claims (1)

[Scope of Claim for Utility Model Registration] A structure of a battery storage part having a space for storing a battery that supplies power to the main body of the device through an opening connected to the outside of the device case, the electrode of the battery stored in the battery storage part. A battery terminal board to be connected to the battery compartment is provided on the side wall of the battery compartment, and a connector to be connected to the external device connection pack is mounted to the back wall of the battery compartment so that its connection surface faces the opening. A structure for a battery storage part of a small electronic device, which is characterized by the following: