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Power supply adapter

A power adapter and power cord technology, applied in instruments, circuits, measuring electricity, etc., can solve the problems of user discomfort of the power cord, easy heating of the power cord, etc., and achieve the effects of improving the convenience of use, suppressing discomfort, and improving operability

Active Publication Date: 2018-08-17
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, it is considered that if the wire diameter of the power cord is reduced, the weight of the power cord can be reduced, but the power cord tends to generate heat due to the current flowing through the power cord, and the heat passing through the power cord will cause discomfort to the user.

Method used

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Examples

Experimental program
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Embodiment Construction

[0036] Embodiments of the present invention will be described below with reference to the drawings.

[0037] The power adapter 1 of the present embodiment is a component (so-called repeater) for supplying electric power to various electric tools, electric lawnmowers, and other electric working machines from a battery pack that is a power supply device for the electric working machine. figure 1 As shown, a power cord 3 for relay is provided.

[0038] One end of the power cord 3 is provided with a power supply mounting part 5 that can be detachably attached to the power supply device, that is, a battery pack, and the other end of the power cord 3 is provided with a detachable attachment to the electric working machine 60 (refer to Figure 4 ) of the working machine mounting portion 10 of the mounting portion.

[0039] In the working machine mounting portion 10 , a pair of guide rails 14 capable of engaging with guide rails provided on the mounting portion of the electric workin...

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PUM

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Abstract

The invention relates to a power supply adapter. A power supply adapter that supplies DC power from a power supply device to an electric working machine via a power cord detects a temperature rise (overheating) of a power cord, so that power supplied to the electric working machine can be suppressed. The power supply adapter comprises the following components: the power cord for supplying direct current power from the power supply device to the electric working machine; a power supply mounting portion configured to be attachable to the power supply device and is used for connecting one end ofthe power cord to the power supply device;a working machine mounting portion configured to be attachable to the electric working machine and is used for connecting the other end of the power cord to the electric work machine; a temperature detection unit for detecting the temperature of the power cord; an overheat determination unit that determines overheating of the power cord based on a detection signal from the temperature detection unit and outputs an overheat determination result.

Description

technical field [0001] The present invention relates to a power adapter for supplying DC power from a power supply device to an electric working machine via a power cord. Background technique [0002] Such a power adapter includes: a power cord; and a mounting portion that is provided at both ends of the power cord and can be detachably attached to a power supply device and an electric working machine. Furthermore, each mounting portion is provided with a terminal portion that is connected to the power supply terminals of the power supply device and the electric working machine when being mounted on the power supply device and the electric working machine. [0003] Also known is a battery pack that is a power supply unit for electric tools, for example, which monitors the state of a built-in battery and outputs a state signal indicating whether the battery can supply power to an electric working machine from a signal output terminal. [0004] Moreover, for a power adapter f...

Claims

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Application Information

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IPC IPC(8): H02H7/08H01R13/66
CPCH01R13/6675H01R13/6683H02H7/0852G01K1/14H02J7/0031H02J7/0045G01R31/36B25F5/00G01K3/005G01R31/343H01R31/065H02J7/00309G01K7/22H02J7/00306H02J7/00H01M50/572G05D23/19H02J7/0042H02J7/0068
Inventor 山田彻远藤隆良冈广树
Owner MAKITA CORP
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