Trigger assembly
US-2024396549-A1 · Nov 28, 2024 · US
Electric power tool
US9553534B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9553534-B2 |
| Application number | US-201514631935-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2015 |
| Priority date | Sep 12, 2014 |
| Publication date | Jan 24, 2017 |
| Grant date | Jan 24, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electric power tool includes a drive source, a rechargeable battery that supplies power to the drive source, a voltage meter that measures voltage of the rechargeable battery, a temperature meter that measures temperature of the rechargeable battery, and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive the drive source. If the battery temperature measured by the temperature meter is lower than or equal to a predetermined temperature when the battery voltage measured by the voltage meter is lower than or equal to a predetermined voltage, the drive control unit drives the drive source differently from normal driving that is performed if the battery temperature is higher than the predetermined temperature when the battery voltage is higher than the predetermined voltage.
First claim
Opening claim text (preview).
The invention claimed is: 1. An electric power tool comprising: a drive source; a rechargeable battery that supplies power to the drive source; a voltage meter that measures a battery voltage of the rechargeable battery; a temperature meter that measures a battery temperature of the rechargeable battery; and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive and control the drive source; wherein the drive control unit is configured such that if the battery temperature measured by the temperature meter is lower than or equal to a predetermined temperature when the battery voltage measured by the voltage meter is higher than an undercut voltage and is lower than or equal to a predetermined voltage, the drive control unit drives and controls the drive source differently from normal driving that is performed if the battery temperature is higher than the predetermined temperature when the battery voltage is higher than the predetermined voltage, and wherein the drive control unit interrupts the supply of power to the power source when the battery voltage is lower than or equal to the undercut voltage that is lower than the predetermined voltage. 2. The electric power tool according to claim 1 , wherein the drive control unit intermittently drives the drive source so that the drive source is driven differently from the normal driving.
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Frequently asked questions
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- What does patent US9553534B2 cover?
- An electric power tool includes a drive source, a rechargeable battery that supplies power to the drive source, a voltage meter that measures voltage of the rechargeable battery, a temperature meter that measures temperature of the rechargeable battery, and a drive control unit that regulates the power supplied to the drive source from the rechargeable battery to drive the drive source. If the …
- Who is the assignee on this patent?
- Panasonic Ip Man Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B25F5/00. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Jan 24 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).