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Electric tool and battery pack

A technology for power tools and battery packs, which is applied in the direction of power tools, battery pack parts, batteries, etc., and can solve problems such as increased reaction force and reduced usability of rotary tools

Active Publication Date: 2022-04-29
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this type of rotary tool, as the weight of the battery pack increases with an increase in the capacity of the battery pack, the center of mass of the rotary tool moves toward the battery pack, thus resulting in the use of the grip portion applied to the holding handle during machining work. The reaction force of the patient's hand increases
This can lead to reduced usability of rotary tools

Method used

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  • Electric tool and battery pack
  • Electric tool and battery pack
  • Electric tool and battery pack

Examples

Experimental program
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Embodiment approach

[0021] (1) Summary

[0022] The electric power tool 1 according to the exemplary embodiment is as Figure 1 to Figure 3 Hand-held power tools shown. The electric tool 1 can be implemented as, for example, an electric screwdriver, electric drill, electric wrench or electric grinder.

[0023] The electric tool 1 includes a body portion 10 , a handle portion 20 and a battery pack 30 .

[0024] The body portion 10 includes: a tool attachment member 11 to which a tool 40 is attached; a drive unit 12 for driving the tool 40 ; and a transmission unit 13 which transmits the driving force of the drive unit 12 to the tool 40 .

[0025] A handle portion 20 is provided for the body portion 10 and includes a grip portion 21 designed to be held by a user's hand.

[0026] At least a part of the battery pack 30 is provided at one end portion 202 of the handle portion 20 opposite to the main body portion 10 . The battery pack 30 supplies power to the drive unit 12 . The battery pack 30 in...

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PUM

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Abstract

And the usability of the electric tool and the battery pack is improved. The electric tool (1) comprises a body part (10), a handle part (20) and a battery pack (30). The body portion (10) includes: a tool attachment member (11) to which a tool (40) is attached; a drive unit (12) for driving the tool (40); and a transmission unit (13) that transmits the driving force of the driving unit (12) to the tool (40). The handle portion (20) is provided for the body portion (10) and comprises a grip portion (21) designed to be held by a user's hand. At least a portion of the battery pack (30) is provided to one end portion (202) of the handle portion (20), the end portion (202) being located at a position opposite the body portion (10). The battery pack (30) supplies power to the drive unit (12). The battery pack (30) includes: a connection terminal portion (33) electrically connected to the drive unit (12) when the battery pack (30) is attached to the handle portion (20); and a power storage unit (36). The power storage unit (36) includes an all-solid-state battery (35) electrically connected to the connection terminal portion (33).

Description

technical field [0001] The present disclosure relates generally to power tools and battery packs, and more particularly to battery powered power tools and battery packs. Background technique [0002] Patent Document 1 discloses a rotary tool as one type of electric power tool. The casing of this rotary tool includes: a cylindrical portion (body portion) housing a motor and a drive unit driven to rotate by the motor; and a handle portion provided to protrude from the cylindrical portion. A battery pack serving as a power source of the rotary tool is attached to the handle portion. [0003] In this type of rotary tool, as the weight of the battery pack increases with an increase in the capacity of the battery pack, the center of mass of the rotary tool moves toward the battery pack, thus resulting in the use of the grip portion applied to the holding handle during machining work. The reaction force of the patient's hand increases. This can lead to reduced usability of the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/02B23B45/02H01M10/052H01M10/0562H01M10/0565H01M50/244H01M50/247H01M50/296
CPCB25B21/02B23B45/02H01M10/0562H01M10/0565H01M10/052H01M50/244H01M50/247H01M50/296H01M50/20B25F5/02Y02E60/10H01M50/213H01M2220/30
Inventor 无类井格
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD