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Battery-driven electronic device

A technology of battery-driven, electronic equipment, applied in the direction of battery disconnect circuit, battery circuit device, electric vehicle, etc.

Active Publication Date: 2016-04-13
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is not preferable to continue supplying power to the computer while the electronic device is not operating from the viewpoint of reducing standby power consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0028] figure 1 It is explanatory drawing which shows the structural example of the battery-driven vacuum cleaner 11 which is one form of the electronic equipment of this invention. For easy understanding, only the parts deeply related to the present invention are shown, and some well-known elements are omitted. In this embodiment, the cleaner 11 is a canister cleaner, and is roughly divided into a cleaner main body, a suction hose 17 and a battery 13 . The battery 13 and the suction hose 17 are detachable from the vacuum cleaner main body, and are electrically connected via a connector. In addition, the battery 13 has battery terminals 13a and 13b, and is connected to the vacuum cleaner main body via the battery terminals 13a and 13b. The battery 13 is assumed to be a secondary battery such as a lithium ion battery, but is not limited thereto. In the state attached to the vacuum cleaner main body, it may be housed inside the vacuum cleaner main body and covered with a cov...

Embodiment approach 2

[0048] figure 2 is the same as figure 1 An explanatory diagram of different configuration examples of the vacuum cleaner. right with figure 1 Corresponding parts are marked with the same reference numerals. Description and figure 1 the difference.

[0049] figure 2 Added in is the resistance R15 of the suction hose 17.

[0050] Resistors R15, R16, R17 and cutoff switch 32 correspond to the second voltage dividing circuit of the present invention. The resistor R15 corresponds to a first pull-up resistor, the resistor R16 corresponds to a second pull-up resistor, the resistor R17 corresponds to a ground resistor, and the cutoff switch 32 corresponds to a second momentary switch.

[0051] One end of the resistor R15 and one end of the cutoff switch 32 are both connected to the battery terminal 13a via the connector 17a connecting the suction hose 17 and the cleaner main body. The voltage signal V2 at the connection point of the resistors R16 and R17 is input to the M...

Embodiment approach 3

[0081] as figure 1 As a modified example of the configuration, a method may be considered in which a voltage stabilization circuit similar to that of the power supply IC 21 is used instead of the voltage dividing circuit of the resistors R13 and R14, and the output voltage thereof is read by the MPU 23 as V1. However, since the circuit configuration is more complicated than that of the voltage dividing circuit, it is considered that this leads to an increase in cost.

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Abstract

A battery-driven electronic device provided with the following: a battery that has battery terminals; a computer to which power is supplied from said battery; a self-holding latching switch that is connected between the battery and the computer and turns the supply of power to the computer on and off; a momentary switch that, when turned on, applies the voltage across the battery terminals to a trigger input for the latching switch, latching said latching switch to an on state; a battery-monitoring circuit whereby the battery-terminal voltage is converted to a battery-monitoring voltage that can be read by the computer; a switch-monitoring circuit whereby the battery-terminal voltage via the momentary switch is converted into a switch-monitoring voltage that can be read by the computer; and a latch-releasing circuit that turns the latching switch off in response to output from the computer. When power is supplied to the computer and the computer starts executing a process, the computer compares the switch-monitoring voltage to the battery-monitoring voltage, and if the difference between said voltages is above a range that is predetermined so as to correspond to the on state of the momentary switch, the computer activates the latch-releasing circuit.

Description

technical field [0001] The present invention relates to a battery-driven electronic device, and more specifically, to an electronic device including a computer that operates by receiving power supplied from a battery, and a latch switch that turns the power supply on and off. Background technique [0002] Various electronic devices that use batteries as a power source and are equipped with computers such as microcomputers are known. In recent years, due to the development of batteries, small, lightweight and high-capacity batteries have become available at low cost. Along with this, not only information processing devices such as mobile phones with relatively low power consumption, but also battery-driven devices such as vacuum cleaners equipped with motors are increasing. However, despite the difference in size, as long as the capacity of the battery is limited, reducing power consumption has always been an issue. [0003] In a battery-driven electronic device equipped wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/26H02J1/00H02J7/00H02P29/00
CPCG06F1/26G06F1/3212H02J7/0031H02J7/0063Y02D10/00H02J7/007182
Inventor 中村一良
Owner SHARP KK
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