JPS6028059Y2 - Button battery storage box - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a storage box (power supply box) for a button-type battery, ie, a small flat disc-shaped mercury battery, lithium battery, etc., in equipment that uses the button-type battery as a power source.

When replacing batteries in electronic circuits operated by button-type batteries, it is cumbersome to remove the old battery and insert a new battery, and it is desired to improve the operability of battery replacement.

Furthermore, if the current is cut off when the battery is replaced, for example, in the case of a digital clock circuit, the time must be re-entered after replacing it, and in the case of a memory circuit, the data will be destroyed unless there is a special protection circuit. There is a problem that

The present invention has been proposed in view of the above points, and aims to eliminate the above-mentioned problems by significantly improving operability during battery replacement and preventing current interruption.

This will be explained in detail below with reference to the drawings.

FIG. 1 is an external perspective view of an example of a portable computer to which the battery storage box of the present invention is applied.

1 is a computer main body, which has a battery storage box 4 therein.

This battery storage box 4 has a battery insertion opening 2 into which the button-type battery 3 is pushed in in a direction perpendicular to the thickness direction of the battery, and a battery ejection opening 6 on the opposite side. It is of a tunnel passage type through which the batteries already housed are pushed out and discharged from the battery outlet 6.

In the example shown in FIG. 1, the battery insertion slot 2 is opened on the side surface of the portable computer housing.

Figure 2 is a partially cutaway side view of a button battery, and 3A is (
+) pole, 3C is (-) pole.

The battery storage box 4 of this example has a third battery compartment in the battery storage chamber 5 of the box.
4 shows a type in which two button type batteries 31 and 32 are housed side by side in the front and back as shown in Figure 4.

S is a space for one battery provided on the opposite side of the battery storage chamber 5 from the battery insertion port 2, adjacent to the battery 31 at the back, and a battery ejection port 6 is formed at the bottom of the space S. .

10C/IOC', 20C/200' are (-) contact groups arranged along the length on the ceiling in the battery storage chamber 5, and the upward (-) terminals 31C, 32C of the stored batteries 31, 32 in the chamber 5.
be in contact with

19A, 19A' and 29A, 29A' are pairs of (+) contacts arranged on the inner surface of the left and right side walls of the chamber 5, one pair each on the back side and the front side of the chamber 5, facing each other. It is in contact with the battery circumferential side wall surface which is the (+) pole of the batteries 31 and 32 inside.

Each (-) contact 10C, 10C', 20C, 200' is a conductive elastic contact piece formed in an arc shape (or bow shape), and its elastic force presses each storage battery 31, 32 against the bottom surface of the storage chamber 5. Together with the (-) pole 31C of each battery 31 and 32
・Press to 32C.

Each (+) contact pair 19A/19A', 29A/29A'
is a conductive elastic contact piece formed in the shape of an arc approximately corresponding to the circumferential side wall surfaces of the batteries 31 and 32, and each battery 31 and 32 is connected between the left and right opposing contact pieces 19A and 19A' of the arcuate shape, and 29A
・Elastically held and held by 29A', (+) pole 31
Press against the circumferential side wall of an A.32A battery.

Adjacent contacts corresponding to each stored battery are placed closer than one battery.As shown in Figures 3 and 4, the batteries 31 and 32 in the stored state in the chamber 5 of the battery storage box 4. To replace the (old battery) with a new battery, insert one of the new batteries into the chamber 5 through the battery insertion slot 2 with the (-) pole 3C facing upward, and insert the old batteries 31 and 32 into the chamber 5 at each contact point 10C and 10C. ', 20C・200', 19A・19
Push in against the elastic holding force of A', 29A and 29A'.

Then, the old batteries 31 and 32 are pushed toward the back inside the chamber 5 by the pushing force of the new batteries, and the battery 31 on the back side of the two old batteries has its left and right arcuate (+) contact pairs 19A and 19.
A' is pushed open, and it is pushed out from between the pair of contacts into the space S, and is naturally discharged from the mouth 6 of the space S to the outside of the device 1.

Also, the old battery 32 on the front side replaces the ejected battery 31 and moves to between the contact pairs 19A and 19A' on the back side, and the inserted new battery replaces the old battery 32 that moved to the front side. It fits between the contact pair 29A and 29A'.

Next, by pushing one new battery into the chamber 5 through the battery insertion port 2, the remaining old battery 32 is also pushed out from the chamber 5 into the space S and discharged outside the device 1 in the same manner as above.
Two new batteries are placed in the chamber 5, replacing the old batteries 31 and 32.

In the above battery replacement operation, even if the old batteries 31 and 32 are pushed and moved by pushing in the new battery, the (+) and (-) poles 3A and 3C of the inserted new battery are at least close to the battery insertion slot 2, respectively. (+) (-) Contacts 29A/29A'
, 200', all of them continue to move while maintaining contact with the (+) and (-) contacts in the chamber 5, and the (+) (-) poles 3A and 3C of the new battery are the contacts. 29
When A.29A' and 200' are touched, power is supplied from the new battery.

Therefore, power is continuously supplied to the electric circuit of the device 1 even during the process of exchanging the battery by pushing out the battery, and the power supply to the circuit is not cut off.

As mentioned above, in the battery storage box of this invention, when a new battery is inserted through the insertion slot 2, it is pushed and the old battery is automatically removed from the extraction slot 6.
During this time, the contacts and both electrodes of the battery do not come apart, so not only can the battery be replaced extremely easily in a sliding manner, but the electronic circuit can continue to operate.

Further, a pair of arcuate opposing contacts 19A and 1 elastically hold and hold the circumferential side wall surfaces of the button batteries 31 and 32 from the left and right sides.
Due to the click-locking action of 9A', 29A, and 29A', the inserted battery is reliably positioned and held in the chamber 5, and a click feeling is obtained when the battery is inserted and stored, so that the inserted battery is not locked in the chamber 5. It can be sensed that the device is securely placed in the specified position.

In the embodiment described above, the insertion port 2 and the removal port 6 are appropriately provided with lids for aesthetic reasons or to prevent deterioration of the contacts.

By changing the structure of the contacts, it is easy to configure the device to accommodate a spare battery.

Even when storing one battery, since the battery insertion port 2 and the battery removal port 6 are separate, the replacement work can be done clearly and easily.

It is also clear that by providing a capacitor in parallel, current interruption can be prevented by the capacitor's capacity to prevent chattering during battery movement.

Figures 5 and 6 show reference examples.

The example in Fig. 5 shows the (
+) Contact groups 10A, 10A', 2OA, 2QA' are arranged along the length on the bottom surface of the battery storage chamber 5.

This (+) contact group is also a conductive elastic contact piece formed in an arc shape (or bow shape) like the (-) contact group 10C/100', 20C/200' arranged on the ceiling side of the chamber 5. 5
The stored batteries 31 and 32 inside are held in the chamber 5 by being elastically sandwiched between the upper and lower (-) and (+) contacts.

Figure 6 shows (+) contacts 19A and 19 in the examples in Figures 3 and 4.
A', 29A and 29A' are formed into a pair of endless belts 100A and 100A' using conductive rubber.

11/111 indicates boori.

With this configuration, when the battery is moved, the battery moves while making contact with the endless belt-shaped contact, so the contact between both electrodes of the battery and the contact is good, and contact failure and chattering can be prevented, especially when the battery is moved. This is effective when there are many batteries.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a portable computer to which an embodiment of the present invention is applied, Fig. 2 is a sectional view of a battery, and Fig. 3 is a diagram taken along Fig. 1 I-I.
II line sectional view, Figure 4 is a vertical sectional plan view of the same part, Figure 5.
FIG. 6 is a sectional view and a plan view of another example, respectively. 2 is the insertion slot, 3 is the battery, 4 is the box, 5 is the storage compartment, 6 is the battery outlet, IOC・100′, 20G・200′, 19
A・19A′, 29A・29A′ are contacts.

Claims (1)

[Claims for Utility Model Registration] It has a battery insertion slot into which a button-type battery is pushed in in a direction perpendicular to the thickness direction of the battery, and a battery ejection port on the opposite side, and the battery inserted from the battery insertion slot A tunnel passage-shaped button-shaped battery storage chamber from which the already stored batteries are pushed out through the battery ejection port, and a battery circle that serves as one electrode of the battery during the process of pushing and inserting the battery from the battery insertion port into the battery storage chamber. An elastic bow-shaped battery click stop that is pushed open left and right against elasticity by the circumferential side wall surface to allow insertion of the battery, and finally holds and positions the inserted battery by elastically holding the circumferential side wall surface of the inserted battery from the left and right sides. It has a holding/contact member, and a contact member that elastically presses into contact with the top electrode of the battery, which is the other electrode of the battery inserted into the battery storage chamber, and the process of pushing and inserting the battery from the battery insertion opening into the battery storage chamber. button type, wherein the arrangement and length of the contact member are set so that the inserted battery is in contact with the contact member before the battery that is pushed out and discharged as the battery is inserted leaves the contact member; Battery storage box.