JP2019193498A5 - - Google Patents
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- JP2019193498A5 JP2019193498A5 JP2018086285A JP2018086285A JP2019193498A5 JP 2019193498 A5 JP2019193498 A5 JP 2019193498A5 JP 2018086285 A JP2018086285 A JP 2018086285A JP 2018086285 A JP2018086285 A JP 2018086285A JP 2019193498 A5 JP2019193498 A5 JP 2019193498A5
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- electrode terminal
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- electric device
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- 239000004065 semiconductor Substances 0.000 claims 4
Claims (14)
前記電池パックは、複数の電池セルが直列接続された第一及び第二セルユニットと、前記第一セルユニットの負極に接続された第一負極端子と、前記第一負極端子に対して離れた位置に配置され、前記第二セルユニットの正極に接続された第二正極端子と、を有し、The battery pack is separated from the first and second cell units in which a plurality of battery cells are connected in series, the first negative electrode terminal connected to the negative electrode of the first cell unit, and the first negative electrode terminal. It has a second positive electrode terminal, which is arranged at a position and is connected to the positive electrode of the second cell unit.
前記電気機器本体は、前記第一セルユニットの前記第一負極端子と前記第二セルユニットの前記第二正極端子とを互いに接続可能に構成された短絡回路と、前記短絡回路によって互いに接続された第一及び第二セルユニットから電力供給を受けて駆動するよう構成された負荷装置と、を有し、The electric device main body is connected to each other by a short-circuit circuit configured so that the first negative electrode terminal of the first cell unit and the second positive electrode terminal of the second cell unit can be connected to each other, and the short-circuit circuit. It has a load device configured to receive and drive power from the first and second cell units, and has.
前記短絡回路は、前記第一負極端子と前記第二正極端子とを互いに接続する導通状態と、前記第一負極端子と前記第二正極端子とを互いに切断する切断状態とを有し、前記電気機器に異常が発生した場合に前記短絡回路が前記切断状態になるよう構成されたことを特徴とする電気機器。The short-circuit circuit has a conductive state in which the first negative electrode terminal and the second positive electrode terminal are connected to each other and a cut state in which the first negative electrode terminal and the second positive electrode terminal are disconnected from each other. An electric device characterized in that the short-circuit circuit is configured to be in the disconnected state when an abnormality occurs in the device.
前記電気機器本体は、前記第一正極端子に接続される正極入力端子と、前記第二負極端子に接続される負極入力端子と、を有し、
前記短絡回路にメインスイッチを介在させ、前記電池パックが前記電気機器本体に装着された際に、前記第一正極端子と前記第二正極端子の間又は前記第一負極端子と前記第二負極端子の間が短絡している場合は前記メインスイッチを開いて前記第一セルユニットと前記第二セルユニットを直列接続せず、短絡していない場合は前記メインスイッチを閉じて前記第一セルユニットと前記第二セルユニットを直列接続するように構成したことを特徴とする請求項1から4のいずれか一項に記載の電気機器。 The battery pack is arranged at a position away from the first positive electrode terminal connected to the positive electrode of the first cell unit and the first positive electrode terminal, and is connected to the negative electrode of the second cell unit. With a negative electrode terminal,
The electric device main body has a positive electrode input terminal connected to the first positive electrode terminal and a negative electrode input terminal connected to the second negative electrode terminal.
A main switch is interposed in the short circuit, and when the battery pack is mounted on the main body of the electric device, it is between the first positive electrode terminal and the second positive electrode terminal or between the first negative electrode terminal and the second negative electrode terminal. If there is a short circuit between them, the main switch is opened and the first cell unit and the second cell unit are not connected in series. If there is no short circuit, the main switch is closed and the first cell unit and the first cell unit are connected. The electric device according to any one of claims 1 to 4, wherein the second cell unit is configured to be connected in series.
前記電池パックが前記電気機器本体に装着された際には、前記メインスイッチをオフにした状態で前記バイパス接続回路によって端子間の短絡の有無を検出することを特徴とする請求項5に記載の電気機器。 A bypass connection circuit with a resistor that is connected in parallel with the short circuit is provided.
The fifth aspect of claim 5, wherein when the battery pack is attached to the main body of the electric device, the presence or absence of a short circuit between terminals is detected by the bypass connection circuit in a state where the main switch is turned off. Electrical equipment.
前記メインスイッチは前記マイコンによってオンオフが制御されることを特徴とする請求項6に記載の電気機器。 It has a microcomputer that detects the terminal voltages of the first positive electrode terminal, the second positive electrode terminal, the first negative electrode terminal, and the second negative electrode terminal.
The electrical device according to claim 6 , wherein the main switch is turned on and off by the microcomputer.
前記マイコンが停止している際には、前記半導体スイッチング素子が切断状態を維持することを特徴とする請求項7に記載の電気機器。 A semiconductor switching element is used as the main switch.
The electric device according to claim 7 , wherein the semiconductor switching element maintains a disconnected state when the microcomputer is stopped.
前記第二スイッチは前記マイコンによってオンオフが制御可能であり、
前記マイコンは前記メインスイッチをオンにした際に前記第二スイッチをオフにすることを特徴とする請求項8に記載の電気機器。 The bypass connection circuit is provided with a second switch that is connected in series with the resistor.
The second switch can be turned on and off by the microcomputer, and can be turned on and off.
The electric device according to claim 8 , wherein the microcomputer turns off the second switch when the main switch is turned on.
前記第一正極端子に接続される正極入力端子と、前記第二負極端子に接続される負極入力端子と、前記第一負極端子と前記第二正極端子を短絡させる短絡回路を有する電気機器本体と、を有し、
前記電池パックが前記電気機器本体に装着された際に前記第一セルユニットと前記第二セルユニットの直列接続回路が確立される電気機器において、
前記短絡回路に遅延接続手段を設け、
前記電気機器本体に前記電池パックからの出力を監視するマイコンを設け、
前記端子群に接続異常が生じていない場合に前記短絡回路を接続させ、接続異常が生じている場合には前記短絡回路を接続しない状態を維持することを特徴とする電気機器。 It has a first cell unit and a second cell unit in which a plurality of battery cells are connected in series, and has a first positive electrode terminal and a first negative electrode terminal from the first cell unit, and a second positive electrode from the second cell unit. A battery pack in which the terminal and the second negative electrode terminal are provided independently,
An electric device main body having a positive electrode input terminal connected to the first positive electrode terminal, a negative electrode input terminal connected to the second negative electrode terminal, and a short-circuit circuit for short-circuiting the first negative electrode terminal and the second positive electrode terminal. Have,
In an electric device in which a series connection circuit between the first cell unit and the second cell unit is established when the battery pack is attached to the electric device main body.
A delay connection means is provided in the short circuit.
A microcomputer for monitoring the output from the battery pack is provided in the main body of the electric device.
An electric device characterized in that the short-circuit circuit is connected when no connection abnormality has occurred in the terminal group, and the short-circuit circuit is not connected when a connection abnormality has occurred.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018086285A JP7180108B2 (en) | 2018-04-27 | 2018-04-27 | electrical equipment |
JP2022183108A JP7375897B2 (en) | 2018-04-27 | 2022-11-16 | electrical equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018086285A JP7180108B2 (en) | 2018-04-27 | 2018-04-27 | electrical equipment |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2022183108A Division JP7375897B2 (en) | 2018-04-27 | 2022-11-16 | electrical equipment |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2019193498A JP2019193498A (en) | 2019-10-31 |
JP2019193498A5 true JP2019193498A5 (en) | 2021-04-22 |
JP7180108B2 JP7180108B2 (en) | 2022-11-30 |
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ID=68391177
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018086285A Active JP7180108B2 (en) | 2018-04-27 | 2018-04-27 | electrical equipment |
JP2022183108A Active JP7375897B2 (en) | 2018-04-27 | 2022-11-16 | electrical equipment |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2022183108A Active JP7375897B2 (en) | 2018-04-27 | 2022-11-16 | electrical equipment |
Country Status (1)
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JP (2) | JP7180108B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN212726500U (en) * | 2020-06-09 | 2021-03-16 | 中兴通讯股份有限公司 | Series-parallel battery system |
CN111584789B (en) * | 2020-06-18 | 2024-08-20 | 格力博(江苏)股份有限公司 | Power tool and system thereof |
US11929698B2 (en) | 2021-03-23 | 2024-03-12 | Snap-On Incorporated | Short circuit protection for a BLDC motor |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2110921B1 (en) * | 2008-04-14 | 2013-06-19 | Stanley Black & Decker, Inc. | Battery management system for a cordless tool |
JP5432761B2 (en) * | 2010-02-12 | 2014-03-05 | 株式会社マキタ | Electric tool powered by multiple battery packs |
JP2014017954A (en) * | 2012-07-07 | 2014-01-30 | Hitachi Koki Co Ltd | Power supply device |
JP6497204B2 (en) * | 2015-05-14 | 2019-04-10 | ティアック株式会社 | Power-on sequence controller |
GB201621312D0 (en) | 2016-12-15 | 2017-02-01 | 7Rdd Ltd | Multi power tool system incorporating battery pack |
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2018
- 2018-04-27 JP JP2018086285A patent/JP7180108B2/en active Active
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2022
- 2022-11-16 JP JP2022183108A patent/JP7375897B2/en active Active
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