JPS62244234A - Charging type electric source - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a rechargeable power supply 1 [with a built-in rechargeable storage battery and an over-discharge prevention buzzer that sounds when the storage battery becomes over-discharged. be.

[Background Art J Conventionally, this type of rechargeable power supply device has been used as a power source for outdoor products or leisure products. This type of rechargeable power supply device has a built-in rechargeable storage battery, and is often equipped with an overdischarge prevention buzzer that sounds when the storage battery becomes overdischarged. This over-discharge prevention buzzer is capable of sounding at a fairly powerful volume. However, this overdischarge prevention buzzer only sounds when a load is connected to the power supply device and the battery capacity is about to run out. The over-discharge prevention buzzer is considered to have various utility values in rechargeable power supply devices used in outdoor products and Lenoya products such as these.
In the past, the overdischarge prevention IF and buzzer were only used to warn of overdischarge.

[Objective of the Invention 1 The present invention has been made in view of the above-mentioned points, and its object is to provide a rechargeable power supply device that can effectively utilize an overdischarge prevention buzzer.

[Disclosure of the Invention I (Configuration) The present invention includes an over-discharge alarm that includes a built-in rechargeable storage battery, detects the battery voltage of the battery, and sounds an over-discharge prevention buzzer when the battery pressure falls below a predetermined value. In a rechargeable power supply device equipped with a buzzer circuit, a switch means is provided to control an over-discharge alarm buzzer circuit and sound an over-discharge prevention buzzer even if the battery voltage is higher than a predetermined value, and the over-discharge prevention buzzer is effectively utilized. A rechargeable power supply device is disclosed.

(Example) FIGS. 1 and 2 are diagrams showing an example of the present invention,
This embodiment is a rechargeable power supply device incorporating a rechargeable lead sealed battery. Generally, a 12V battery is used as this type of battery. The rechargeable power supply device of this embodiment consists of a power supply main body 1 and a charging case 7. The power supply main body 1 incorporates the battery B and the charging control circuit 2, and can be carried using a handle 20 provided on the top surface. In addition, a cigarette socket 5 having the same shape as an automobile cigarette socket is formed on the side surface.
) An output socket cover 3 is attached to the socket 5 and is rotatable around a rotation shaft 4. Further, this cigarette socket 5 is connected to a battery B as shown in FIG. tIS2. Fig. f51 (b) shows the state in which the socket F cover 3 is removed by (ij1%) to expose the cigarette socket 5.
A jack 6 such as a small light or a small television can be inserted into the jack 6, and a cleaner or the like can be used outdoors. The power supply main body 1 also has a built-in overdischarge prevention buzzer 13, which emits a buzzer sound through a buzzer window 8 formed in the form of a slit in the side surface of the power supply main body 1. Furthermore, the 'IfL source device body 1 includes an over-discharge warning buzzer circuit 12 that drives the over-discharge prevention buzzer 13 when the voltage of the battery B drops below a predetermined value.

The overdischarge warning buzzer circuit 12 will be explained below. This over-discharge alarm buzzer circuit 12 is a transistor 701102.
It consists of % volume 14, number of bulletins, buzzer 13, etc.

The volume 14 is connected to both ends of the battery B, and is used to set the sensitivity at which the overdischarge prevention buzzer 13 sounds, that is, the overdischarge state. The output terminal of this volume 14 is connected to the base of the transistor Q, and the volume 14 is connected to the base of the transistor Q.
When the output of Q4 is equal to or higher than a predetermined voltage, the transistor Q1 is made conductive. The battery voltage determined to be in an over-discharge state, which is set by this volume 14, is, for example, 1
For a 2V lead sealed battery, approximately 10-10.5VI:
ill be arranged. When the transistor Q is conductive, that is, when the battery voltage of the battery B is above a predetermined value, the transistor Q2 connected in series with the overdischarge prevention buzzer 13 is nonconductive. 13
No current flows and no alarm is issued. Now, assuming that the battery voltage is discharged to a predetermined value or less, the transistor Q
, becomes non-conductive, transistor Q2 becomes conductive, and current flows to the over-discharge prevention buzzer 13.
Hibuzzer 13 rings. The overdischarge prevention buzzer 13 sounds to remind the user to charge the battery B.

The Agebuta 7 has a built-in step-down means such as a transformer 9, and is used to charge the power supply main body 1 with an AC power source.

The above has been a description of a system equipped with a conventional rechargeable power source.Next, the features of this embodiment will be described. In this embodiment, a manually turned on/off switch 15 is used as the switching means, and this switch 15 is connected between the base of the transistor QI and the ground.

In other words, by turning on the switch 15, the base of the transistor Q1 is forcibly grounded, so that the hypersensitive electrical protection
It is possible to make a sound.

For this reason, the hypersensitive electric protection +) - buzzer 13 normally sounds only when battery B runs out of capacity to prevent overdischarge.
When using a rechargeable power supply device for leisure purposes,
It can be used as a signal to gather friends.

In the above explanation, the switch 15 is connected between the base of the transistor Q1 and the ground, but it is also possible to open the emitter side of the transistor Q1 or short-circuit the base of the transistor Q2. Needless to say, it's a good thing.

(Embodiment 2) FIGS. 3 and 4 are diagrams showing other embodiments of the present invention. In this embodiment, a sensor 17 that detects environmental changes such as light and water is used as a switch means. It was there. Therefore, as shown in FIG. 3, in order to connect the sensor 17, the external output terminal 16 connected to the base of the transistor Q1 described in the first embodiment and the ground is connected to the side surface of the power supply main body 1. It is provided for. FIG. 4 shows a circuit diagram of the power supply main body 1 to which the sensor 17 is connected.

For example, when a water sensor is used as the sensor 17, the over-discharge prevention buzzer 13 can be used as a rain warning buzzer by sounding the over-discharge prevention buzzer 13 when it rains, and the sensor 17 can also be used as a rain warning buzzer. When an optical sensor is used as the overdischarge prevention buzzer 13, the overdischarge prevention buzzer 13 can be used as a light/dark notification buzzer, and when a temperature sensor is used, it can be used as a temperature notification buzzer.

In other words, as long as you connect something that reduces the resistance value of the external output terminal 16 open in the event of an abnormality, the number of
- Can sound the buzzer. As described above, according to this embodiment, the overdischarge prevention buzzer 13 can be used as any alarm or notification buzzer.

(Embodiment 3) FIGS. 5 and 6 are diagrams showing still another embodiment of the present invention. In this embodiment, instead of the switch 15 of the first embodiment, an insulating member is inserted between the contacts from the outside. This uses a normally closed switch that opens the contact by inserting the switch. This normally closed switch is as follows. As shown in FIG. 6, a long hole 21 is drilled in the side surface of the power supply main body 1, and two approximately J-shaped leaf springs 18 having electrical conductivity are placed inside the power supply main body 1 in which the long hole 21 is bored. The curved end of each is fixed to the inner surface of the housing of the power supply main body 1, and the other end of each is fixed to the inner surface of the housing of the power supply device main body 1. Each leaf spring 18 is connected by a lead wire 24 to the base of the transistor Q of the circuit of FIG. 2 and to ground. This leaf spring 18 becomes a normally closed switch. This leaf spring 1
8 is normally in an open state, that is, in a state in which the leaf spring 18 is in contact with the opening, as shown in FIG. 6(b). Therefore,
As shown in FIG. 6(a), an insulating member 19 is inserted between the contact surfaces of the leaf spring 18 to form a normally closed switch.

Hereinafter, the application of the above-mentioned normally closed switch will be explained. A string 22 is connected to the opposite side of the insertion end of the insulating plate 1, and this ML 22 is tied to a fixed object such as a tree. Therefore, as shown in the fj4G diagram (a), the ~ insulating plate 19 is inserted between the leaf springs 18, so that the base of the transistor Q and the ground are in an open state, and overdischarge occurs. The prevention buzzer 13 does not sound unless the battery B becomes over-discharged. However, if the power supply main body 1 is taken away for the purpose of theft, for example, the insulating plate 19 will be damaged due to the opening of the leaf spring 18. ) will come off as shown. Therefore, the base of the transistor Q1 is short-circuited, and the overdischarge prevention buzzer 13 sounds. In other words, overdischarge prevention buzzer 1
3 can be used as a theft prevention buzzer. In this case, the overdischarge prevention buzzer 13 continues to sound unless the insulating plate 19 is inserted into the elongated hole 21 again. As described above, this embodiment is effective for Lenoyer products, and can also be used as a security buzzer for women and children.

(Embodiment 4) FIGS. 7 and 8 are diagrams showing still another embodiment of the present invention. In this embodiment, the over-discharge warning buzzer circuit 12 is activated even when the rechargeable power supply device is not in use. This is to prevent battery B from being discharged little by little due to a slight current flowing through the volume 14 and the tranny Ql and Q2 even in a normal standby state. That is, a switch 11 is provided between the battery B and the overdischarge warning buzzer circuit 12, and the switch 11 is linked to close when the socket cover 3 is opened. Therefore, when the socket cover 3 is open and the power supply main body 1 is not in use, the over-discharge alarm buzzer circuit 12 is disconnected from the battery B, and the battery B is discharged when not in use. There are few.

Furthermore, in this embodiment, a switch 23 is provided in parallel with the switch 11. This switch 23 is provided on the side surface of the power supply main body 1 as shown in FIG. 8, and can be turned on and off at will independently of the switch 11. This switch 23 is a switch for preventing battery B from becoming over-discharged due to natural discharge. In other words, when using a rechargeable power supply device, the socket cover 3 is opened, and the overdischarge prevention buzzer 13 can be activated by the action of the switch 11 to notify the user of the overdischarge state. ! The user cannot be notified of the over-discharge state due to the natural discharge of battery B that occurs when the power supply device is stored when not in use.In particular, with lead-sealed batteries, self-discharge and over-discharge is a risk factor for the battery. This is fatal in terms of performance. Therefore, by keeping the switch 23 on during storage, the switch 23 is provided to remind the user to charge the battery B when it becomes over-discharged, thereby preventing performance deterioration due to self-discharge of the battery. . When this switch 23 is turned on, the electric current generated by the over-discharge warning buzzer circuit 12 is as small as several milliamperes, and if it is a large storage battery, it will work for several months, prompting the user to charge it several times a year. I can do it.

[Effects of the Invention] As described above, the present invention is equipped with a switch means that controls the over-discharge warning buzzer circuit and causes the over-discharge prevention buzzer to sound even if the battery voltage is above a predetermined value. The over-discharge prevention buzzer, which could previously only be used to prevent over-discharge, can now be used for other purposes, expanding the scope of use of the over-discharge prevention buzzer, and since only a switch means is provided, costs increase, etc. It is effective without any problems.

[Brief explanation of drawings]

Figure 1 (,) is an external perspective view of one embodiment of the present invention;
b) is an external perspective view of the power supply main body when the socket cover is opened, FIG. 2 is a circuit diagram of the same as above, FIG. 3 is a perspective view of main parts showing another embodiment of the present invention, and FIG. 4 is same as above. 5 is a perspective view of essential parts of still another embodiment of the present invention, FIGS. 6(a) and (b) are explanatory diagrams showing the operating state of the same, and FIG. 7 is a further embodiment of the present invention. A circuit diagram of another embodiment, FIG. 8, is a perspective view of the same essential parts as above. B is a battery, 1 is a power supply main body, 12 is an over-discharge warning buzzer circuit, 13 is an over-discharge prevention buzzer, 11° 15.23 is a switch, 17 is a sensor, and 18 is a leaf spring.

Claims (4)

[Claims] (1) In a rechargeable power supply device that has a built-in rechargeable storage battery and is equipped with an over-discharge warning buzzer circuit that detects the battery voltage of the storage battery and sounds an over-discharge prevention buzzer when the battery voltage falls below a predetermined value. 1. A rechargeable power supply device comprising switch means that controls an over-discharge warning buzzer circuit to sound an over-discharge prevention buzzer even if the battery voltage is above a predetermined value. (2) The rechargeable power supply device according to claim 1, wherein the switch means is a switch that is manually turned on and off. (3) The rechargeable power supply device according to claim 1, wherein the switch means is constituted by a sensor that detects environmental changes such as light and water. (4) The rechargeable power supply device according to claim 1, wherein the switch means is a normally closed switch that opens the contacts by inserting an insulating member between the contacts from the outside.