JP3269046B2 - Electric equipment and battery pack - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rechargeable battery pack which is mounted in a dry cell storage portion of an electric device such as a game machine instead of a dry cell.

[0002]

2. Description of the Related Art Game machines can be used economically by using rechargeable battery packs instead of dry batteries. In particular,
A game machine such as a game machine that has a long usage time and a large amount of usage has a feature that the amount of discarded dry batteries can be significantly reduced by replacing the dry batteries with battery packs. Battery packs for such applications are actually fair 6
It has already been developed as described in US Pat. The battery pack described in this publication is shown in FIG. In this battery pack, two cylindrical batteries 15 are arranged in parallel and connected by a holder 11.

[0003]

The battery pack having the structure shown in FIG. 1 has an outer shape in which two cylindrical batteries 15 are connected by a holder 11 and can be mounted in a dry battery storage section. In the battery pack of this structure, the two cylindrical batteries are held in the holder by bending both sides of the holder inward, so that the two cylindrical batteries cannot be reliably connected.
If the holder is made thick and has a strong structure in order to solve this drawback, the two cylindrical batteries can be reliably connected. However, a thick holder enlarges the outer shape of the battery pack, which makes it difficult to mount the battery pack in the dry cell storage unit. Further, since the battery pack shown in this figure can be inserted in the dry cell storage section in the opposite direction, there is also a disadvantage that if the battery pack is not correctly checked and ++-is not installed in the dry cell storage section, +-is installed in reverse. is there.

[0004] The battery pack has a structure in which a secondary battery is built in a plastic case, so that the above-mentioned disadvantages can be solved. However, a battery pack having this structure cannot be mounted in a dry cell housing designed for dry cells. This is because the external shape of a battery pack in which a secondary battery is built in a plastic case is large. The external size of the battery pack can be reduced by reducing the size of the built-in secondary battery. However, cylindrical batteries that are mass-produced have standard dimensions, except for special ones. Therefore, specially manufacturing batteries with dedicated dimensions greatly increases the manufacturing cost. For this reason, reducing the size of the built-in rechargeable battery in a battery pack is possible as a desk plan, but using a specially designed small rechargeable battery is extremely difficult in terms of manufacturing costs and manufacturing efficiency. Can not be adopted. Therefore, a battery pack that can be used in place of a dry cell in the dry cell storage section of a game device must use a secondary battery of standard dimensions and be shaped so that it can be mounted in the dry cell storage section. The built-in conventional structure cannot realize a battery pack that can be actually used.

The present invention provides a structure in which a secondary battery can be mounted instead of a dry battery in a dry battery storage portion of an electric device without incorporating the secondary battery in a plastic case having a closed structure, and further, solves the drawbacks of the conventional battery pack. It was developed for the purpose. Therefore, an important object of the present invention is to:
An object of the present invention is to provide a battery pack that can be attached to a dry battery storage section of an electric device and that can reliably connect a plurality of secondary batteries.

[0006]

The battery pack according to the first aspect of the present invention is mounted in a dry cell storage section 2 of an electric device instead of a dry cell. In the battery pack, a plurality of cylindrical secondary batteries 3 are positioned on the same plane and connected to each other by a holder 4 in parallel with each other. The holder 4 has two curved side portions 4B and two valley connection portions 4A surrounding the periphery of the plurality of rechargeable batteries 3, and the two curved side portions 4B are curved along the cylindrical outer peripheral surface of the cylindrical battery. And two valley connections 4
A is disposed between the valleys between the cylindrical batteries, and connects the two curved side portions 4B so as to surround the plurality of secondary batteries 3 with the curved side portions 4B. Further, the valley connecting portion 4A opposing the curved side surface portion 4B and the bottom surface of the dry cell storage portion 2.
Is disposed in a central portion except for both ends of the cylindrical battery, and has an asymmetric shape for preventing reverse mounting to the dry battery storage portion 2. In the present specification, the “lower surface of the battery pack” means a surface facing the bottom surface of the dry battery storage unit when mounted on the dry battery storage unit.

In this specification, "both sides" of a battery pack are
In FIG. 3, which is a front view of the secondary battery viewed from the electrode side,
Shall mean the sides located on the left and right of the battery pack,
The “both sides” of the battery pack means the upper and lower surfaces of the battery pack in this figure. Further, in this specification, the “upper and lower edges” of the curved side portion are specified in the vertical direction in FIG. 3 in which a plurality of rechargeable batteries are placed on a horizontal surface, and the vertical direction of the curved side portion in FIG. Shall mean the edge located at. Further, “both ends” of the battery pack mean both ends where the electrodes of the secondary battery are provided, and “both sides” of the battery pack correspond to the left and right sides of the battery pack in FIG. It shall mean both sides located.

Furthermore, packs battery of the present invention, the curved side portions 4B are provided on both sides of the battery pack as an asymmetrical,
Attach it to the battery compartment 2 in the determined position
There Ru. On the other hand, the electric device
6 is provided, and the fitting concave portion 46 defines a battery pack.
In a state where it is mounted at the position, the curved side portion 4B can be fitted.
It is arranged in the place.

Further , the battery pack of the present invention includes a holder 4 having a cut-out portion 47 for fitting a partition rib 43 provided in the dry cell storage section 2 between unit cells arranged adjacent to each other. ing. The notch 47 and the partition ribs 43 of the dry cell storage section 2 have an asymmetric shape to prevent the battery pack from being reversely mounted. Further, the battery pack can be used to replace the secondary battery 3 with +
Connect with the holder 4 so that the polarity of-is reversed.
And the +-electrode terminal 5 of the adjacent secondary battery 3 is
Connected by a lead plate 9 on the opposite side of the
And the other side of the output terminal 10 is a dry battery.
Power is supplied without contacting the contacts 6 and 7 of the storage section 2
I am trying to do it.

According to a fourth aspect of the present invention, there is provided a battery pack comprising:
9, the metal cap 18 elastically pressed by the holder 4
Built-in. The metal cap 18 is the output terminal 10 of the battery pack.

In the battery pack according to a fifth aspect of the present invention, a switch 21 which is turned on when the battery pack is mounted and used in the battery compartment 2 and which is turned off when the battery pack is taken out of the battery compartment 2 is provided in the holder 4. It is built in.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. However, the embodiments described below illustrate a battery pack for embodying the technical idea of the present invention, and the present invention does not specify the battery pack as follows.

Further, in this specification, in order to make it easier to understand the claims, the numbers corresponding to the members shown in the embodiments will be referred to as “claims” and “ In the column of “means”.
However, the members described in the claims are not limited to the members of the embodiments.

The battery pack shown in FIGS. 2 and 3 is mounted in the dry battery storage section 2 of the game device 1 shown in FIGS. 4 and 5 instead of the dry battery. In the dry cell storage section 2 of the game device 1 shown in the figure, dry cells are mounted in +-reverse directions. Therefore,
The battery housing 2 has elastic projecting contacts 6 disposed on diagonal lines at both ends. The elastic protruding contact 6 has a shape that allows the elastic metal plate to elastically protrude toward the dry battery, and is elastically pressed against the negative electrode terminal of the dry battery to make electrical contact therewith. Although not shown, the elastic projecting contact may have an elastic wire wound in a coil shape. The non-elastic contact 7 that is in contact with the positive electrode terminal of the dry battery is fixed next to the elastic projecting contact 6 in the dry battery housing 2. The non-elastic contact 7 is also disposed on the diagonal line of the dry cell housing 2. Inelastic contact 7
Is a metal plate fixed to the inner surface of the dry cell housing 2. The elastic projecting contact 6 is provided in the dry battery housing 2 so as to project beyond the non-elastic contact 7.

In the battery storage section 2 shown in FIG. 5, a resilient projecting contact 6 and a non-elastic contact 7 provided on the right side are connected by a lead plate 8. This is for connecting the dry batteries mounted adjacent to the dry battery storage section 2 in series. In the figure, an elastic protruding contact 6 and a non-elastic contact 7 provided on the left side of the dry cell storage section 2 serve as power terminals of the game device 1 and
To supply power.

The battery pack mounted in the dry battery housing 2 is electrically connected to the left elastic projecting contact 6 and the non-elastic contact 7 to supply power to the game machine 1. In the battery pack shown in FIG. 4, the right side of the built-in secondary battery 3 is connected in series by a lead plate 9. In the battery pack having this structure, the positive and negative electrode terminals 5 on the right side of the secondary battery 3 are connected to the dry battery housing 2.
Power can be supplied to the game device 1 without being electrically connected to the elastic projecting contacts 6 and the non-elastic contacts 7 provided on the right side of the game device 1. Therefore, in the battery pack, the opposite side of the output terminal 10 is connected to the elastic projecting contact 6 and the non-elastic contact 7 of the dry cell housing 2.
There is no need to contact

In the battery pack shown in FIGS. 2 and 3, two secondary batteries 3 are connected in parallel by a holder 4 and fixed.
The secondary battery 3 is fixed to the holder 4 with the positive output terminal 10A protruding from the negative output terminal 10B. Rechargeable battery 3
Is a cylindrical rechargeable battery such as a nickel-cadmium battery, a nickel-hydrogen battery, and a lithium ion secondary battery. The secondary battery 3 has substantially the same thickness as the dry battery mounted in the dry battery storage section 2 and is slightly shorter than the dry battery.

Dry cell storage unit 2 for mounting AA batteries
The size of the battery pack is approximately the same as that of AA batteries, and is slightly shorter than that of AA batteries.
Built-in. The dry cell storage section 2 shown in the figure is designed to mount two dry cells. Battery compartment 2
Are not necessarily designed to be fitted with two batteries. The dry cell storage unit 2 is designed to mount three or more dry cells in an electric device having a high power supply voltage or high power consumption, for example, a battery-operated MD player or DVD device capable of recording. A battery pack containing three or more rechargeable batteries is mounted in a battery storage unit having a structure in which three or more batteries are mounted.

The total length of the battery pack is determined by the minimum distance between the two elastic projecting contacts 6 disposed at both ends of the dry battery housing 2 so as to face each other, that is, the elastic projecting contacts 6
Is longer than the interval between the distal end surfaces of the resilient projecting contacts 6 disposed opposite to each other. If the total length of the battery pack is shorter than the minimum distance between the elastic projecting contacts 6, the +/- output terminal 10 cannot be electrically connected to the elastic projecting contact 6 serving as the power terminal of the game device 1 and the inelastic contact 7. .

Further, in the battery pack shown in the figure, two secondary batteries 3 are connected and fixed by a holder 4 so that the + and-polarities are opposite. In the battery pack, as shown by the chain line in FIG. 5, the + -electrode terminals 5 of the adjacent secondary batteries 3 are connected in series by connecting the lead terminals 9 on the opposite side of the output terminals 10.

The holder 4 is, as shown in FIGS. 2 and 3,
The curved side portions 4B, which are curved along the outer peripheral surface of the cylindrical battery and are located on both sides of the battery pack, are connected to the curved side portions 4B on both sides of the battery pack. And a valley connecting portion 4A located in the valley. The valley connection portions 4A are provided on both sides of the battery pack, and the valley connection portions 4A located on both sides connect the upper and lower end edges of the curved side surface portion 4B, and the curved side surface portion 4B and the valley connection portion 4A form a battery pack. It is held in a state of surrounding. Curved side 4B
The valley connecting portion 4A is integrally formed of plastic.

Further, the curved side surface portion 4B and the valley connection portion 4A located on the lower surface of the battery pack are provided at a central portion excluding both ends of the cylindrical battery. This is for mounting a battery pack having a secondary battery 3 having substantially the same thickness as the dry battery in the dry battery storage section 2 of the game device 1. As shown in FIG. 4, the dry cell storage section 2 of the game device 1 is provided with partition ribs 43 between the dry cells in order to mount the dry cells in fixed positions. In the illustrated dry battery storage section 2, partition ribs 43 are provided at both ends. Both sides of the partition rib 43 are formed in a groove shape having a width and a depth in which the dry battery can be mounted almost without any gap in order to mount the dry battery at a predetermined position. On both sides of the partition rib 43,
In order to install a rechargeable battery 3 of almost the same size as a dry battery,
The battery pack has a curved side surface portion 4B and a lower valley connection portion 4A.
Are disposed at portions except for both ends of the dry cell storage section 2.

The valley connection portion 4A and the curved side surface portion 4B provided on the lower surface of the battery pack are fitted in fitting recesses 46 provided in the dry battery storage portion 2 of the game machine 1. Fitting recess 4
Reference numeral 6 is provided at a position where the curved side surface portion 4B and the lower valley connection portion 4A can be fitted with the battery pack mounted in a fixed position.

The battery pack needs to be mounted in the dry cell housing 2 in the specified direction. In order to prevent reverse mounting of the battery pack, the holder 4 is formed in an asymmetric shape at both ends or both side parts of the battery pack. The battery pack can be mounted in a predetermined direction by fitting the asymmetric holder 4 into the fitting concave portion 46 of the dry battery housing 2. In the case of a battery pack whose mounting direction is reversed, the asymmetric holder 4 is not fitted in the fitting concave portion 46 and cannot be mounted in the dry battery housing 2. In the battery pack shown in the figure, the curved side surface portion 4B and the lower valley connection portion 4A are arranged so as to be unevenly distributed from the center of both ends of the battery pack to one end, and the holder 4 is provided with both ends and both sides of the battery pack. And have an asymmetric shape.

Further, in the battery pack shown in the figure, a notch 47 is provided between the secondary batteries 3 for fitting the partition ribs 43 of the dry battery storage section 2. The notch provided in the holder may have an asymmetric shape at both ends of the battery pack, and the notch and the partition rib may prevent the battery pack from being reversely mounted.

Further, in the holder 4 shown in the figure, an end cover 4C provided at the end of the secondary battery 3 is integrally formed. The end cover 4C includes an output terminal cover 4a on the output terminal 10 side and a non-contact cover 4b.

The output terminal cover 4a shown in FIGS. 6 and 7
Has an outer shape that conforms to the outer shape of the cylindrical secondary battery 3 and has a built-in metal cap 18 that is the output terminal 10. The metal cap 18 is elastically pushed out by a spring 19.

The non-contact cover portion 4b includes two rechargeable batteries 3
Are connected on the inner surface. Further, the non-contact cover portion 4b has a slit, and the slit forms a guide groove 13 for guiding the elastic projecting contact 6 of the dry cell storage portion 2. The guide groove 13 is provided at a position facing the negative electrode terminal 5 of the built-in secondary battery 3. In the illustrated non-contact cover portion 4b, since the guide groove 13 is formed by a slit, the negative electrode terminal surface of the secondary battery 3 is the bottom surface of the guide groove 13. The guide groove 13 formed by a slit is provided so as to extend from the center of the negative electrode terminal 5 of the secondary battery 3 to the bottom surface side of the dry battery housing 2. This is because the elastic projecting contact 6 is moved along the guide groove 13 when the battery pack is inserted into the dry cell housing 2. The guide groove 13 can be deepened in a battery pack having the negative electrode terminal surface of the secondary battery 3 as the bottom surface of the guide groove 13.

However, in the battery pack in which the secondary batteries are connected in series inside the non-contact cover portion, the positive and negative electrode terminals of the secondary battery provided inside the non-contact cover portion are connected to the dry battery storage portion. Since there is no need to contact the elastic projecting contact and the non-elastic contact, a guide groove having a bottom can be formed in the non-contact cover portion.

The depth of the guide groove 13 is preferably a depth at which the elastic projecting contact 6 of the dry battery storage section 2 does not elastically press the bottom of the guide groove 13 when the battery pack is mounted in the dry battery storage section 2. I do. The battery pack having this structure can be most easily inserted into the dry cell housing 2. that is,
The battery pack is inserted into the dry battery storage section 2 without compressing the elastic projecting contacts 6 disposed opposite the non-contact cover section 4b at all.
Because it can be attached to

The battery pack shown in FIG.
A guide groove 13 is provided at one end from the center of b. The guide grooves 13 do not necessarily need to be provided on both upper and lower surfaces of the battery pack. This is because the elastic projecting contact 6 is located substantially at the center of the negative electrode terminal 5 of the secondary battery 3 in a state where the battery pack is placed in the fixed position of the dry battery storage unit 2.

Further, as shown in FIGS. 2 and 7, the battery pack is provided with an inclined surface 45 on the upper part of the output terminal cover part 4a to facilitate insertion into the dry cell storage part 2. In FIG. 5, the battery pack is inserted in a state in which the elastic projecting contact 6 located on the left side of the dry battery housing 2 is pressed and compressed by the output terminal 10 of the battery pack. At this time, the battery pack
The output terminal 10 is inserted into the dry cell housing 2 with the output terminal 10 facing downward. In the battery pack shown in the figure, the inclined surface 45 is provided on the upper part of the output terminal cover part 4a located on the left side. Can be inserted.

Further, in the battery pack shown in the figure, a handle concave portion 14 is provided in the non-contact cover portion 4b so that it can be easily pulled out from the dry battery storage portion 2. The handle recess 14
It is provided at the center of the non-contact cover part 4b. In the battery pack shown in the figure, convex portions are provided on both sides of the non-contact cover portion 4b, and the portions between the convex portions are thinly formed as handle concave portions 14. A slit is provided in a portion where the handle concave portion 14 is provided and formed thin, and this is used as the guide groove 13.

In the battery pack, the built-in secondary battery 3 is shorter than the dry battery mounted in the dry cell storage section 2.
This is because a handle recess 14 is provided in the holder 4 to provide a gap between the holder 4 and the inner surface of the dry battery housing 2.

Further, the battery pack shown in FIGS.
The positive output terminal 10A connected to the inelastic contact 7 of the dry cell housing 2 is an elastic output terminal 17 that is elastically pushed out toward the inelastic contact 7 of the dry cell housing 2. The elastic output terminal 17 in these figures pushes the metal cap 18 toward the inelastic contact 7 of the dry cell housing 2 with a spring 19. The metal cap 18 is manufactured by press-molding a metal plate.
And the periphery thereof is a stopper flange 18B. The metal cap 18 is pushed by a spring 19 to elastically project the convex terminal 18A to the outside from a through hole provided in the output terminal cover 4a. The stopper flange 18B abuts on the inner surface of the output terminal cover 4a, which is the outer periphery of the through hole, to prevent the metal cap 18 from jumping out of the output terminal cover 4a.

The spring 19 is a coil spring made of an elastic metal wire, and is disposed between the positive electrode terminal 5 of the secondary battery 3 and the metal cap 18 to elastically push the metal cap 18. An insulating material 20 is sandwiched between the spring 19 and the electrode terminal 5 so that the spring 19 does not electrically contact the positive electrode terminal 5 of the secondary battery 3. The spring 19 is also used for a lead plate connecting the metal cap 18 to the secondary battery 3. The spring 19 is connected to the secondary battery 3 via the switch 21.

The battery pack has a built-in switch 21 that is turned on when the battery pack is installed in the battery compartment and can be used, and turned off when the battery pack is removed from the battery compartment. The switch 21 shown in FIG. 7 is turned on by being pushed by a protruding portion (not shown) provided on the opening / closing lid of the dry cell storage section. The switch 21 has an elastic contact 21A and a fixed contact 21B.
Is pushed in the direction of the arrow in FIG. 7 by a projection provided on the opening / closing lid to contact the fixed contact 21B to turn on the switch 21. Therefore, when the battery pack is installed in the dry cell storage section and the open / close lid is closed, the switch 21 is turned on,
The game device can be supplied with power. When the battery pack is removed from the game machine, the elastic contact 21A is no longer pressed, and the switch 21 is turned off. For this reason, in a state where the battery pack is removed from the game machine, a short-circuit current does not flow through the secondary battery 3 even if the output terminal 10 is short-circuited.

Further, the battery pack shown in the figure has an elastic contact 21 A of the switch 21 and a spring 19 of the elastic output terminal 17.
Are composed of one elastic wire. One end of the elastic wire is processed into a coiled shape to form a spring 19 for pushing out the metal cap 18, and the other end is extended to a position facing the fixed contact 21 </ b> B to form an elastic contact 21 </ b> A of the switch 21. The elastic wire composed of the spring 19 and the elastic contact 21A is provided while being held at a fixed position by the holder 4.

In the battery pack having the above structure, the switch 21 is turned on by the open / close lid. The switch 21 can be configured to be switched to the ON position by pressing the switch 21 with a rib provided in the dry cell storage unit, for example, without using the open / close lid.
In this switch, an elastic contact is disposed at a position where the elastic contact is pressed by a rib, and a fixed contact is disposed at a position where the pressed elastic contact contacts.

The battery pack is charged in a state where the battery pack is mounted in the dry cell storage unit 2. In order to expose the charging terminal 22 for charging the battery pack to the outside, a charging window 23 is opened in the upper valley connecting portion 4A of the holder 4. further,
The upper valley connecting portion 4A is provided with an elastic contact 21A for inserting the protruding portion of the opening / closing lid into the inside of the battery pack with the battery pack mounted in the dry battery storage section 2 and pressing the elastic contact 21A of the switch 21. The switch window 24 is opened at the pressing position.

[0041]

As described above, the battery pack of the present invention has a feature that it can be mounted in a dry battery storage portion of an electric device and that a plurality of secondary batteries can be reliably connected. This is because the battery pack of the present invention holds a plurality of secondary batteries with a holder having a unique structure. The holder holds the outer peripheral surface of the cylindrical battery by curved side portions provided on both sides of the battery pack, and further connects the curved side portions on both sides of the battery pack to both surfaces of the battery pack by valley connection portions. And, since the curved side portions and the lower valley connection portions on both sides of the battery pack are provided at portions except for both ends of the battery pack, the battery battery is designed to be installed in a fixed position in a battery storage portion of an electric device. Can be mounted without displacement. In addition, there is a feature that the secondary battery of the battery pack can be attached to the dry battery storage unit in place of the dry battery by making the thickness of the secondary battery approximately the same as that of the dry battery.

Furthermore, since the battery pack of the present invention has an asymmetrical shape of the holder, the mounting position of the battery pack can be specified by the holder to prevent reverse mounting of the battery pack.

[0043] Furthermore, packs battery, since the curved side portions of the holder and asymmetrical shape, when mounting the battery pack in the battery housing section, while confirming the fitting state between the holder and the battery accommodating section Can be mounted in the correct direction. Ma
And, in cutouts are provided at both ends of the holders are used can be accurately mounted to prevent reverse installation of the battery pack.

Further, in the battery pack according to the present invention, a metal cap which is elastically extruded is provided on the holder and is used as an output terminal of the battery pack.
It has the feature of eliminating poor contact between the battery pack and electrical equipment.

Further, the battery pack according to claim 5 of the present invention is:
It has a built-in switch that turns on when it is installed in the battery compartment and turns off when it is removed from the battery compartment.
There is the feature that the short circuit of the battery can be prevented when it is taken out of the dry battery storage section.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a conventional battery pack.

FIG. 2 is a perspective view of a battery pack according to an embodiment of the present invention.

FIG. 3 is a front view of the battery pack shown in FIG. 2;

FIG. 4 is a perspective view showing a dry battery storage section of a game device to which a battery pack is mounted.

FIG. 5 is a front view showing a state where a battery pack is mounted in a dry battery storage section of the game device;

FIG. 6 is a horizontal sectional view of the battery pack shown in FIG. 2;

FIG. 7 is a longitudinal sectional view of the battery pack shown in FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Game equipment 2 ... Dry battery storage part 3 ... Secondary battery 4 ... Holder 4A ... Valley connection part 4
B: curved side surface 4C: end cover 4a: output terminal cover 4b: non-contact cover 5: electrode terminal 6: elastic projecting contact 7: non-elastic contact 8: lead plate 9: lead plate 10: output terminal 10A … + Output terminal 1
0B ...- Output terminal 11 ... Holder 13 ... Guide groove 14 ... Handle recess 15 ... Cylindrical battery 17 ... Elastic output terminal 18 ... Metal cap 18A ... Protrusion terminal 1
8B: stopper flange 19: spring 20: insulating material 21: switch 21A: elastic contact 2
1B: Fixed contact 22: Charging terminal 23: Charging window 24: Switch window 43: Partition rib 45: Inclined surface 46: Fitting recess 47: Notch

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-11-176404 (JP, A) JP-A-9-50795 (JP, A) JP-A-4-98267 (JP, U) JP-A-63 77258 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01M 2/10

Claims (5)

(57) [Claims] An electric device and a plurality of cylindrical secondary batteries (3), which are mounted in place of dry cells in a dry cell storage portion (2) of the electric device, are mounted on the same plane. And two parallel side walls (4B) surrounding two or more rechargeable batteries (3) and two valley connection parts (4A). ), The two curved side portions (4B) are curved along the cylindrical outer peripheral surface of the cylindrical battery, and the two valley connection portions (4A) are provided between the valleys between the cylindrical batteries, and the two The curved side portions (4B) are connected to each other to hold the plurality of secondary batteries (3) in a state of being surrounded by the curved side portions (4B), and further, the curved side portions (4B) and the dry cell storage portion (2). The valley connection part (4A) facing the bottom surface of the rechargeable battery (3) is arranged at the center part except for both ends of the rechargeable battery (3), and has an asymmetric shape that prevents reverse mounting to the dry cell storage part (2) , Further In addition, this pack battery has a curved
The side part (4B) is asymmetric, and the battery
The receiving portion (2) is provided with a fitting recess (46), and this fitting recess (46) is provided.
(46) is the curved side when the battery pack is installed in the fixed position.
Surface (4B) is arranged at a position capable of fitting the further the battery compartment portion of the electrical device (2) batteries
The ribs (43) between the batteries to install them in place
And a dry battery on both sides of the rib (43).
The holder (4) is formed in a groove shape that can be attached without a gap , and the rib (4) is a partition rib of the dry cell storage part (2).
(43), and a notch (47) for fitting the notch (47).
Reverse mounting of battery pack with partition rib (43) of battery compartment (2)
And the battery pack has a rechargeable battery (3) with a positive and negative polarity.
Are connected in the opposite orientation with the holder (4).
And the + -electrode terminal (5) of the adjacent secondary battery (3)
On the other side of the connector (10) with a lead plate (9)
They are connected in series, and the opposite side of the output terminal (10)
Power is supplied without contacting the contacts (6) and (7) of the storage section (2).
Power equipment and battery packs to be supplied. 2. The electronic device according to claim 1, wherein the electric device is a game machine.
Onboard electrical equipment and battery pack. 3. The apparatus according to claim 1, wherein the electric device is a DVD device.
Electrical equipment and battery pack to be described. 4. The holder (4) has a built-in metal cap (18) elastically pressed by a spring (19), and this metal cap (18) serves as an output terminal (10) of the battery pack. The battery pack according to claim 1. 5. A switch (21), which is turned on when mounted and used in the battery compartment (2) and turned off when removed from the battery compartment (2), is incorporated in the holder (4). The battery pack according to claim 1.