JPH08242543A - Portable equipment - Google Patents

Abstract

PURPOSE: To drive a portable equipment corresponding to any kind of battery by automatically recognizing a used battery, whether a dry cell or rechargeable battery, by automatically detecting the kind of the used battery. CONSTITUTION: When a battery pack 1 is housed in the battery housing section of the main body 5 of portable equipment, a detecting means 2 which detects whether the battery incorporated in the pack 1 is a rechargeable battery or dry cell discriminates the kind of the battery in the pack 1 by judging the shape of the pack 1 and characteristics of the battery. A switching means 3 which switches the output mode of the battery in accordance with the kind of the battery changes the mode of a display function outputting means 4 in accordance with the detected results of the detecting means 2 and increases or decreases the power consumption of the main body 5 by changing the circuit related to the power consumption of the main body 5. Therefore, when such an expensive primary battery as the dry cell, etc., is incorporated in the pack 1, the power consumption of the main body 5 can be reduced by only changing the mode of the outputting means 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable device having switching means for switching the output mode of the output means depending on the type of battery.

[0002]

2. Description of the Related Art Conventionally, most of the battery packs 1 used in portable devices or the like use a dedicated secondary battery such as a nickel cadmium battery. For this reason, it is not necessary to detect the battery type of the battery pack or whether or not the battery is a battery other than the dedicated battery because the device main body side uses it differently from other batteries.

However, a user has demanded a device which can use a dry battery or the like other than the dedicated battery because of the ease of obtaining the battery and the economical problem.

[0004]

As described above, since the batteries used in the conventional portable equipment are mainly dedicated rechargeable battery packs, the availability of the batteries, the purchase cost of the charging device, etc. For economic reasons, there were many users who used primary batteries such as dry batteries regardless of the specifications of the equipment.

However, although a primary battery such as a dry battery cannot be charged, some users accidentally charge it, or the battery voltage or the like does not conform to the specifications of the device, and the device is destroyed. There was also a fear that it would end up. In view of these, the object of the present invention is to automatically recognize the dry battery and the rechargeable battery by automatically detecting the type of the battery used, and to operate in correspondence with either battery. To provide a mobile device.

[0006]

The present invention is provided with a detection means for detecting whether the battery pack is a rechargeable battery or a dry battery, and a switching means for switching the output mode according to the type of the battery. By automatically detecting the type of the battery by the detection means and changing the output mode of the circuit by the switching means, a power-saving portable device corresponding to the used battery is realized.

[0007]

The detecting means determines the type of the battery by judging the shape of the battery pack and the characteristics of the battery contained in the battery pack, and the switching means changes the mode of the output means according to the detection result of the detecting means. The circuit related to the power consumption of the device body is changed.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 2 is an embodiment of the battery pack detecting means of the present invention, and is a partial plan cross-sectional view of the battery housing portion of the battery pack.

In the drawings, reference numeral 1 is a battery pack accommodating a battery serving as a device driving power source such as a dry battery or a rechargeable battery, and 13 is a partial plan sectional view of a portable device housing accommodating the battery pack 1. An insertion opening 16a for inserting the battery pack 1 is formed at one end of the portable device housing 13. The battery pack 1 has the insertion opening 1a.
It is housed and arranged in the battery housing section 16 of the portable device housing 13 via 6a. An electrode spring 20 electrically connected to a circuit provided in the main body of the portable device is provided inside the battery housing portion 16,
21 is provided, and a micro switch 14 is provided on the inner wall opposite to the micro switch 14. When the battery pack 1 is accommodated in the battery accommodating portion 16 of the portable device housing 13, the switch terminal 15 of the micro switch 14 is a battery. The switch is actuated by being pushed by the side wall of the pack 1, and the two positive and negative electrodes of the battery pack 1 electrically contact the electrode springs 20 and 21, respectively.

3 and 4 show examples of the internal structure of the battery pack 1, in which 17 is a secondary battery main body, 18 is a primary battery main body, 1a and 1b are battery pack housings. An electrode spring 2 corresponding to the electrode springs 20 and 21 provided on the portable device housing is provided on one side of the battery pack housings 1a and 1b.
The electrode springs 22 and 23 are electrically connected to the electrodes of the secondary battery main body 17 and the primary battery main body 18, respectively.

On the other hand, a notch 19 is formed at a position corresponding to the micro switch 14 formed on the inner wall of the battery housing portion 16 of the portable device housing 13 in the primary battery pack housing 1b housing the primary battery body 18. . Next, the operation will be described. When the battery pack is a secondary battery and the battery pack 1 is inserted into the main body 5 of the portable device, the electrode springs 20 and 22 and the electrodes 21 and 23 formed opposite to each other are electrically charged. To make a power supply to the mobile device body 5. At this time, the switch terminal 15 of the micro switch 14 is pushed by the side wall of the battery pack 1 to operate. On the other hand, when the primary battery pack 1b is inserted, the switch terminal 15 is released from the pressure on the side wall of the primary battery pack by the notch 19 and is not operated.

In this way, the outer shape of the battery pack 1 is changed depending on whether it is the primary battery or the secondary battery, and the difference in the outer shape is detected by the microswitch 14, so that the type of the battery pack 1 can be easily determined. Can be detected. Further, the detection method is not limited to the mechanical method as shown in the above embodiment, but may be a transmitted light sensor.
Further, it is possible to use an electronic detection method such as battery voltage and internal resistance.

Next, switching means 3 and display function output means 4
The operation will be described with reference to the circuit diagram of FIG. In the embodiment of FIG. 5, the output of the battery 101 differs depending on the battery used,
When a dry battery is used, it is connected to the DCDC converter 102 that outputs a voltage of 3V, and when a rechargeable battery is used, it is connected to the DCDC converter 103 that outputs a voltage of 4.5V. As the output switching means, the DCDC converters 102 and 103 are P channel FET switches 105 and 1,
06 source. The drains of the P-channel FET switches are collectively connected to the EL 104 of the output means 4,
The gate of the P-channel FET switch 105 is connected to the output of the OR gate 109. The gate of the P-channel FET switch 106 is connected to the output of the OR gate 107. The input of the OR gate 107 is connected to the input of the inverter 108 and the common of the microswitch 14. The other input of the OR gate 107 is the OR gate 1
08 input to connect to the EL 104 emission signal terminal 110
Connected to The other input of the OR gate 109 is connected to the output of the inverter 108. The operating side of the microswitch 14 is connected to the negative side of the battery 101, and the non-operating side is connected to the positive side of the battery 101.

Next, the operation will be described. Battery pack 1
When the secondary battery pack 1a is connected, the microswitch 14 is operated by the side wall of the battery pack, so that the inputs of the inverter 108 and the OR gate 107 are connected to the negative electrode side of the battery 101 and become LOW level. At this time, when a LOW level light emission signal is input to the light emission signal terminal 110, the output of the OR gate 109 remains HIGH level, but the output of the OR gate 107 becomes LOW level. Therefore, the P-channel FET switch 106 becomes conductive and 4.5V is supplied to the EL 104.

When the primary battery pack 1b is connected, the micro switch 14 is inoperative and the OR gate 1
07 and the input of the inverter 108 are connected to the positive electrode of the battery 101, and become HIGH level. Therefore, the OR gate 107 is driven by the LOW level signal of the light emission signal terminal 110.
Output becomes LOW level. As a result, P channel F
The ET switch 105 becomes conductive, and the EL 104 has a voltage of 3.0V.
Is supplied.

As described above, the voltage supplied to the EL 104 of the output means 4 changes depending on the type of the battery pack 1.
The power consumption changes at the same time as the luminance of 04 changes. If the primary battery pack 1b that you want to save power is connected, EL
3V is supplied to 104 to save power. When the secondary battery pack 1a is connected, 4.5V is supplied to the EL 104 to give priority to brightness.

Next, another embodiment of the present invention for the switching means 3 and the display function output means 4 will be described with reference to FIG. In FIG. 6, the positive electrode of the battery 101 is connected to the DCDC converter 102 that outputs 4.5V,
The output of the converter 102 is connected to the source of a P-channel FET switch 105 that serves as the switching means 2.
The drain of the P-channel FET switch 105 is EL
104, and the gate is connected to the common of the microswitch 14. Further, the common of the microswitch 14 is connected to the reset input of the RS flip-flop 130, and the light emission signal 110 is connected to the set input of the RS flip-flop 130. Furthermore, the R
The Q output of the S flip-flop 130 is the AND gate 13.
1 is connected to the input side, the other input is the clock terminal 1
11 is connected. The output of the AND gate 131 is connected to the clock input of the 10-stage ripple counter 132. The reset terminal of the ripple counter 132 is connected to the reset terminal of the RS flip-flop. The 9-stage Q output of the ripple counter 132 is the 10-stage Q output on the non-operating side of the microswitch 14.
The output is connected to the operating side of the microswitch 14.

Next, the operation of this embodiment will be described.
FIG. 7 is a time chart thereof, showing the emission signal 110 as R
When input to the set input of the S flip-flop 130, the Q output becomes LOW level. At this time, the ripple counter 132 is released from the reset, the 9-stage Q output, 10
The stage Q output becomes LOW level. Further, since the Q output of the RS flip-flop 130 becomes HIGH level, the clock from the clock terminal 111 connected to the input of the AND gate 131 is output as it is. When the clock input is input, the 10-stage ripple counter 132 counts according to the clock input.
In the case of Hz, the 9th stage Q output returns to HIGH level after about 16 seconds, and the 10th stage Q output returns to HIGH level after about 32 seconds. Of course, the number of stages of the ripple counter 132 and the frequency of the clock input can be freely selected. The output of the ripple counter is microswitch 1
4 selected each time, P channel FE
The T switch 105 is turned on, the voltage is supplied to the EL 104, and the EL switch is turned on according to the operation of the micro switch 14.

As described above, since the supply time of the EL 104 of the display function output means 4 changes depending on the type of the battery pack 1, it is possible to change the power consumption per lighting of the EL 104. Also, as is clear from the above circuit,
When the primary battery pack 1b is connected, the EL 104 is lit for about 16 seconds to save power. On the other hand, when the secondary battery pack 1a is connected, the EL 104 is lit for 32 seconds, and the visibility can be prioritized.

Next, the embodiment of the present invention will be described more specifically with reference to FIG. The detection means 2 is connected to the control circuit 402, and the control circuit 402 is connected to the switch elements 406 and 407 via the base resistance. The switch element 406 is connected to the switch element 407 via the resistor 405.
Of the piezoelectric element 404 and the boosting coil 403, and the piezoelectric element 404 and the boosting coil 403 are connected to a power source.

When the detection means 2 sends the volume setting information to the control circuit 402, the control circuit 402 outputs a 2.4 KHz pulse signal for controlling the switch elements 406 and 407 for driving the piezoelectric element 404 and the boosting coil 403. Send out. The pulse signal drives the switch element 407 when the volume is high, and drives the switch element 406 when the volume is low. The resistor 405 is connected to the switch element 406 to reduce the volume. That is, by limiting the current flowing through the booster coil 403 with the resistor 405, the booster coil 403 is controlled for a large volume.
In addition, the excitation voltage at the end of the piezoelectric element 404 can be reduced.

To switch the volume in multiple stages, a plurality of switch elements may be prepared. The boost coil 403
In addition, if a circuit for switching the power supply voltage of the piezoelectric element 404 is added and switching is performed by the control circuit, the selection range of the volume is further expanded, and fine current control can be performed. Further, the booster coil 403 can be cut off or connected, or can be controlled by the control circuit 402.
Further, in the control circuit 402, the volume can be changed by shifting the driving frequency with respect to the resonance frequency of the piezoelectric element 404 by, for example, 1/2 or 1/4. Furthermore, the tone generation time can be controlled by the timer of the control circuit 402. That is, the volume of the battery can be reduced to the minimum necessary depending on the type of the battery pack, and the battery life can be greatly extended. Further, in the case of the secondary battery, it is also possible to select the volume according to the customer's request, and it is possible to flexibly meet the customer's needs.

Next, an embodiment of the present invention will be specifically described with reference to FIG. The detection means 2 is connected to the gate of the switch element 501. The source of the switch element 501 is connected to the power source and the resistor 502, and the drain of the switch element 501 is the resistor 502 and the smoothing capacitor 5.
03, an additional resistor 505 of the transistor 506, and a bias resistor 504. The additional resistance 50
5 is connected to the collector of the transistor 506 and the antenna circuit 507, and the emitter of the transistor 506 is connected to GND. The base of the transistor 506 is connected to one side of the bias resistor 504 and the coupling capacitor 508.

ON / OFF of the gate of the switch element 503 is controlled by the detecting means 2, and the switch element 50
3 is turned on, the drain voltage of the switch element 501, that is, the power supply voltage of the transistor 506 is increased. As a result, the high frequency signal input from the coupling capacitor 508 has a higher amplitude than when the switch element 501 is turned off. As a result, the transmission power can be increased. On the other hand, the switch element 501
When is off, the power supply voltage of the transistor 506 is lower due to the resistor 502 than when it is off. In this way, the signal amplified by the collector of the transistor 506 is transmitted to the antenna circuit 507, the switching element 503 is turned off depending on the type of battery used, and the current consumption at the time of wireless transmission is reduced to significantly improve the battery life. For example, when using a secondary battery, the transmission power can be switched from small to large and from large to small according to the customer's usage conditions and communication conditions by software, and the degree of freedom in the usage environment can be increased. Can be increased.

[0025]

According to the present invention, the type of the battery housed in the battery pack is detected using the detecting means, and the mode of the output means 4 is switched via the switching means in accordance with the result. The power consumption can be changed by changing the output mode of the display function output means. As a result, when a battery pack using a primary battery such as a dry battery, which is economically expensive, is used, it is possible to save power simply by changing the mode of the display function output means.

[Brief description of drawings]

FIG. 1 is a circuit block diagram of the present invention.

FIG. 2 is an explanatory diagram showing an embodiment of the detection means of the present invention.

FIG. 3 is an explanatory view showing an embodiment of the battery pack of the present invention.

FIG. 4 is an explanatory view showing an embodiment of the battery pack of the present invention.

FIG. 5 is a circuit diagram of the present invention.

FIG. 6 is a circuit diagram of the present invention.

FIG. 7 is a time chart of the present invention.

FIG. 8 is a circuit diagram of voltage switching means of the present invention.

FIG. 9 is a circuit diagram of voltage switching means of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery pack 1a Secondary battery pack 1b Primary battery pack 2 Detecting means 3 Switching means 4 Display function output means 5 Portable device main body 13 Portable device housing 14 Micro switch 16 Cutout 17 Secondary battery 18 Primary battery 19 Cutout 20, 21, , 22, 23, 24, 25 Electrode spring 101 Battery 102, 103 DCDC converter 132 Ripple counter

Claims (5)

[Claims] 1. In a portable device using a battery pack containing a primary battery or a secondary battery as a drive source, the portable device main body may be a battery which is a primary battery or a secondary battery. A portable device comprising: detection means for detecting whether or not there is any, and switching means for switching the output mode of the display function output means according to the result of the detection means. 2. The display function output means comprises a light emitting means,
The mobile device according to claim 1, wherein the switching unit switches the light amount of the output unit according to a detection result of the detection unit. 3. The display function output means comprises a light emitting means,
The mobile device according to claim 1, wherein the switching unit switches the light emission time of the output unit according to the detection result of the detection unit. 4. The display function output means comprises a sounding means,
The mobile device according to claim 1, wherein the switching unit switches the volume of the output unit according to the detection result of the detection unit. 5. The portable device according to claim 1, wherein the display function output means is a wireless communication means, and the switching means switches the transmission output of the output means according to the detection result of the detection means.