Method and apparatus for wirelessly recharging batteries
US-9780600-B2 · Oct 3, 2017 · US
Inductive Charging Device for Charging Batteries
US2017149266A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017149266-A1 |
| Application number | US-201514952753-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 25, 2015 |
| Priority date | Nov 25, 2015 |
| Publication date | May 25, 2017 |
| Grant date | — |
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Abstract
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The invention relates to an inductive charging device for charging at least one battery ( 12 a ; 12 b ), in particular at least one portable power tool battery, with a charging unit ( 14 a ; 14 b ) provided for transferring electrical energy to the at least one battery ( 12 a ; 12 b ), and with a detector unit ( 16 a ; 16 b ) provided for detecting a removal of the at least one battery ( 12 a ; 12 b ) during a charging process. It is proposed that the detector unit ( 16 a ; 16 b ) comprises at least one sensor ( 18 a ; 18 b ) provided for monitoring at least a resonance voltage and/or at least a resonance current ( 20 a ; 20 b ) of the charging unit ( 14 b ; 14 b ).
First claim
Opening claim text (preview).
1 . An inductive charging device for charging at least one battery comprising: a charging unit configured to transfer electrical energy to the at least one battery; and a detector unit configured to detect a removal of the at least one battery during a charging process, the detector unit including at least one sensor configured to monitor at least a resonance voltage and/or at least a resonance current of the charging unit. 2 . The inductive charging device according to claim 1 , wherein the detector unit is further configured to interrupt the transmission of electrical energy in case of a deviation of the resonance voltage and/or of the resonance current from a limit value. 3 . The inductive charging device according to claim 1 , wherein the detector unit is further configured to interrupt the transmission of electrical energy in case of a steady increase of the resonance voltage and/or of the resonance current. 4 . An inductive charging system comprising: at least one battery; and at least one inductive charging device configured to charge the at least one battery, the inductive charging device including (i) a charging unit configured to transfer electrical energy to the at least one battery, and (ii) a detector unit configured to detect a removal of the at least one battery during a charging process, the detector unit including at least one sensor configured to monitor at least a resonance voltage and/or at least a resonance current of the charging unit. 5 . The inductive charging system according to claim 4 , wherein the at least one battery is integrated into a portable power tool. 6 . A method for detecting a removal of at least one battery during an inductive charging process carried out by an inductive charging device comprising: monitoring at least a resonance voltage and/or at least a resonance current of a charging unit of the inductive charging device with at least one sensor of a detector unit of the inductive charging device. 7 . The method according to claim 6 , further comprising: continuously monitoring the resonance voltage and/or the resonance current during a charging process. 8 . The method according to claim 6 , further comprising: detecting the resonance voltage and/or the resonance current several times within a specified time period. 9 . The method according to claim 6 , further comprising: interrupting a transmission of electrical energy to the at least one battery in case of a deviation of the resonance voltage and/or of the resonance current from a limit value. 10 . The method according to claim 6 , further comprising: interrupting a transmission of electrical energy to the at least one battery in case of a steady increase of the resonance voltage and/or of the resonance current.
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Frequently asked questions
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- What does patent US2017149266A1 cover?
- The invention relates to an inductive charging device for charging at least one battery ( 12 a ; 12 b ), in particular at least one portable power tool battery, with a charging unit ( 14 a ; 14 b ) provided for transferring electrical energy to the at least one battery ( 12 a ; 12 b ), and with a detector unit ( 16 a ; 16 b ) provided for detecting a removal of the at le…
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification H02J50/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu May 25 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).