JPH0560021U - Fax machine - Google Patents

Abstract

(57) [Abstract] [Purpose] A secondary battery is built into a facsimile machine and the required power is supplied from the secondary battery. [Structure] The facsimile device has a secondary battery 1 and a charging power source unit 3 built-in, and the secondary battery 1 is automatically charged when a predetermined time comes, and the power required by the secondary battery 1 is normally used. F
Supply to the AX body 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a facsimile device, which has a built-in secondary battery and a charging power source and supplies required power from the secondary battery.

[0002]

[Prior Art]

 Conventionally, the power source of the facsimile machine is generally obtained from the commercial AC100V line, and there is a problem that it cannot be used in the event of an unexpected power outage. Therefore, there has been a demand for a facsimile machine equipped with a secondary battery to cope with this emergency and to charge the battery at a time when the power charge is low, such as late at night.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above circumstances, and has a built-in rechargeable battery and a power source for charging, which automatically charges the rechargeable battery at a predetermined time such as midnight, and during normal use in the daytime. The present invention provides a facsimile device that can obtain the required power from this secondary battery.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems by providing a secondary battery that supplies required power to a facsimile body, a power supply unit that charges the secondary battery, a clock unit that outputs a signal at a predetermined time, and Provided is a facsimile apparatus including a detection unit that detects a charging state of a secondary battery, and a charging control unit that controls charging of the secondary battery from the power supply unit based on outputs from the clock unit and the detection unit. It is a thing.

[0005]

[Action]

 With the above configuration, the facsimile device according to the present invention has a built-in secondary battery and a charging power source, and automatically charges the secondary battery at a predetermined time, and the secondary battery is normally used during normal use. The required power is supplied from the battery to the facsimile body.

[0006]

【Example】

 An embodiment of a facsimile apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a facsimile apparatus according to the present invention. In the figure, reference numeral 1 denotes a secondary battery, which supplies electric power required for the operation of the FAX main body 2. A charging power source 3 is connected to the AC 100V line and is composed of a temporary rectifying circuit, a SW power source for supplying a predetermined current to the load, a switching circuit, and the like. A clock unit 4 outputs a signal at the time when charging is started, for example, 10 pm. Reference numeral 5 denotes a detection unit, which is connected to the secondary battery 1 to detect the charging state and output a signal. A charging control unit 6 controls the charging power supply unit 3 based on signals from the clock unit 4 and the detection unit 5.

Next, the operation of the facsimile apparatus according to the present invention will be described. The transmission time of a facsimile machine is a short time within 20 seconds for A4 size standard manuscript in G3 mode, and power consumption during normal use can be regarded as standby power. First, for the secondary battery 1, for example, if 15 nickel-cadmium storage batteries NR-D type (1.2 V, 3.5 A · h) are connected in series and configured as a 6 V power source, the standby power consumption will be reduced. Power can be supplied for about 16 hours, for example, at 4W. Now, for example, if 10 hours from 10 pm to 8 am is set as the charging time and 8 am to 10 pm is the normal use time, the above-mentioned configuration of the secondary battery 1 is used for the general daytime. Can be used for electricity.

Now, at 10 pm, the clock unit 4 outputs a signal. Based on this signal, the charging control unit 6 instructs the charging power supply unit 3 to start charging the secondary battery 1, and the power supply terminal of the FAX main body 2 is from the secondary battery 1 to the output side of the charging power supply unit 3. Can be switched. During charging, the charging power supply unit 3 supplies a constant current to the secondary battery 1 and the FAX main body 2 which are loads. That is, the secondary battery 1 is supplied with a 10-hour rate current (0.1 C) of approximately 1.1 A, and the FAX main body 2 is supplied with a standby required current of approximately 0.7 A, which is a total of approximately 1.8 A. When the charging is completed, the terminal voltage of the secondary battery 1 rises, and when it reaches 7.5 V, for example, the detection unit 5 outputs a signal. Based on this signal, the charging control unit 6 controls the charging power supply unit 3 to shut off the charging circuit, and at the same time, the power supply terminal of the FAX main body 2 is connected to the secondary battery 1 to enter the normal operation state. At this time, the discharge current (load current) from the secondary battery 1 is about 0.7 A (0.07 C).

Further, even in the normal operation, when the terminal voltage of the secondary battery 1 falls below a predetermined voltage, for example, 5.5V, the detection unit 5 outputs a signal, and the charging control unit 6 based on this signal outputs the charging power source. Instruct the unit 3 to start charging, and continue charging until a predetermined terminal voltage is reached. When the charging is completed, the normal operation state is restored based on the detection signal of the detection unit 5 as described above.

[0010]

[Effect of the device]

 As described above, the facsimile device according to the present invention has the built-in rechargeable battery and charging power source, so it functions as an emergency power source such as a power outage and is automatically operated during low power rates such as midnight. It is effective in recharging the battery and obtaining the required power from the secondary battery during normal use in the daytime.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of an embodiment of a facsimile apparatus according to the present invention.

[Explanation of symbols]

 1 Secondary Battery 2 FAX Main Body 3 Charging Power Supply Section 4 Clock Section 5 Detection Section 6 Charging Control Section

Claims (1)

[Scope of utility model registration request] 1. A rechargeable battery for supplying required power to a facsimile body, a power supply unit for charging the rechargeable battery, a clock unit for outputting a signal at a predetermined time, and a rechargeable state of the rechargeable battery. A facsimile apparatus comprising: a detection unit for detecting and a charging control unit for controlling charging of the secondary battery from the power supply unit based on outputs from the clock unit and the detection unit.