Method and system for protection of a lithium-based multicell battery pack including a heat sink
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H02J-007/04
H02J-007/16
출원번호
US-0617365
(2006-12-28)
등록번호
US-7504804
(2009-03-17)
발명자
/ 주소
Johnson,Todd W.
Grzybowski,Dennis J.
Kubale,Mark A.
Rosenbecker,Jay J.
Scheucher,Karl F.
Meyer,Gary D.
Zeiler,Jeffrey M.
Glasgow,Kevin L.
출원인 / 주소
Milwaukee Electric Tool Corporation
대리인 / 주소
Michael Best & Friedrich LLP
인용정보
피인용 횟수 :
30인용 특허 :
84
초록▼
A system and method for battery protection. In some aspects, a battery pack includes a housing, a cell supported by the housing, a circuit supported by the housing and operable to control a function of the battery pack, and a heat sink in heat transfer relationship with the circuit and operable to d
A system and method for battery protection. In some aspects, a battery pack includes a housing, a cell supported by the housing, a circuit supported by the housing and operable to control a function of the battery pack, and a heat sink in heat transfer relationship with the circuit and operable to dissipate heat from the circuit.
대표청구항▼
The invention claimed is: 1. A Lithium-ion battery pack configured to be interfaced with a handheld power tool, the battery pack comprising: a battery pack housing; a plurality of terminals configured to be interfaced with corresponding terminals of the power tool; a plurality of rechargeable Lithi
The invention claimed is: 1. A Lithium-ion battery pack configured to be interfaced with a handheld power tool, the battery pack comprising: a battery pack housing; a plurality of terminals configured to be interfaced with corresponding terminals of the power tool; a plurality of rechargeable Lithium-ion battery cells arranged within and supported by the housing, each of the battery cells having a respective state of charge, the battery pack having a state of charge, power being transferable between the battery cells and the power tool; a control circuit supported by the housing and operable to control a plurality of functions of the battery pack including discharging functions, the control circuit including a controller, the control circuit configured to control at least one function of the battery pack based on a monitored state of charge; a switch configured, when open, to disable transfer of power between the battery cells and the power tool, the switch further configured, when closed, to enable transfer of power between the battery cells and the power tool, the switch including at least one field effect transistor (FET); and a heat sink in heat transfer relationship with the switch and operable to dissipate heat from the switch, wherein the battery pack and the power tool can be selectively separated from one another, and wherein the switch and the heat sink are components of the battery pack. 2. The battery pack of claim 1, wherein the heat sink is in heat transfer relationship with the controller and operable to dissipate heat from the controller. 3. The battery pack of claim 1, wherein a function controlled by the control circuit includes interrupting the transfer of power between the battery cells and the power tool. 4. The battery pack of claim 1, wherein the switch is coupled to the heat sink. 5. The battery pack of claim 1, wherein the supply of discharge current is conducted through the switch, the switch generating heat when conducting the supply of discharge current. 6. The battery pack of claim 1, wherein the FET is physically mounted on the heat sink and in heat transfer relationship with the heat sink. 7. The battery pack of claim 1, wherein the control circuit is further configured to identify an electrical device based at least in part on a resistor contained in the electrical device. 8. The battery pack of claim 7, wherein the electrical device is the battery pack. 9. The battery pack of claim 1, wherein the control circuit is further configured to control an operating parameter of the power tool. 10. The battery pack of claim 1, wherein the power tool is one of a circular saw and a driver drill. 11. The battery pack of claim 1, wherein the switch is electrically connected to the control circuit. 12. The battery pack of claim 1, wherein the battery cells have a Lithium Manganese chemistry. 13. The battery pack of claim 1, wherein the monitored state of charge is of the battery pack. 14. The battery pack of claim 1, wherein the monitored state of charge is of a battery cell. 15. A Lithium-ion battery pack configured to be interfaced with a handheld power tool, the battery pack comprising: a battery pack housing; a plurality of terminals configured to be interfaced with corresponding terminals of the power tool; a plurality of rechargeable Lithium-ion battery cells arranged within and supported by the housing, each of the battery cells having a respective state of charge, the battery pack having a state of charge, power being transferable between the battery cells and the power tool; a control circuit supported by the housing and operable to control a plurality of functions of the battery pack including discharging functions, the control circuit including a controller and a thermistor, the control circuit configured to control at least one function of the battery pack based on at least one of a monitored state of charge and a monitored battery pack temperature; a switch configured, when open, to disable transfer of power between the battery cells and the power tool, the switch further configured, when closed, to enable transfer of power between the battery cells and the power tool; and a heat sink in heat transfer relationship with the switch and operable to dissipate heat from the switch, wherein the battery pack and the power tool can be selectively separated from one another, and wherein the switch and the heat sink are components of the battery pack. 16. A Lithium-ion battery pack configured to be interfaced with a handheld power tool, the battery pack comprising: a battery pack housing; a plurality of terminals configured to be interfaced with corresponding terminals of the power tool; a plurality of rechargeable Lithium-ion battery cells arranged within and supported by the housing, each of the battery cells having a respective state of charge, the battery pack having a state of charge, power being transferable between the battery cells and the power tool, the battery cells being operable to collectively supply a discharge current of at least 20 Amperes to power the power tool; a control circuit supported by the housing and operable to control a plurality of functions of the battery pack including discharging functions, the control circuit including a controller, the control circuit configured to control at least one function of the battery pack based on a monitored state of charge; a switch configured, when open, to disable transfer of power between the battery cells and the power tool, the switch further configured, when closed, to enable transfer of power between the battery cells and the power tool; and a heat sink in heat transfer relationship with the switch and operable to dissipate heat from the switch, wherein the battery pack and the power tool can be selectively separated from one another, and wherein the switch and the heat sink are components of the battery pack. 17. The battery pack of claim 1, wherein the battery cells are operable to collectively supply a discharge current of at least approximately 20 Amperes to power the power tool. 18. The battery pack of claim 1, further comprising a flexible circuit coupled to the control circuit. 19. The battery pack of claim 1, further comprising a printed circuit board coupled to the control circuit. 20. The battery pack of claim 1, further comprising a battery pack identification component.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (84)
Carrier David A. ; Seman ; Jr. Andrew E. ; Yahnker Christopher R. ; Woods Samuel G., AC/DC chopper for power tool.
Hacker David C. (Cedar Rapids IA), Automatic control means providing a low-power responsive signal, particularly for initiating data preservation operation.
Satake Syuji,JPX ; Enomoto Michito,JPX, Battery capacity measurement apparatus, taking into consideration a gassing voltage that changes relative to temperature.
Tsantilis Eleftherios (20 Kydathinaion Str Athens 10558 GRX), Battery charging system, stepping and interactively self-adjusting to the normal voltage of the battery.
Calogero Ribellino IT; Patrizia Milazzo IT; Francesco Pulvirenti IT, Control circuit for the charging current of batteries at the end of the charging phase, especially for lithium batteries.
Bhagwat Pradeep (Baltimore MD) Harrell Duronie (Charlotte NC) Smith Stephen (Raleigh NC) Woods Samuel G. (Baltimore MD), Direct current motor speed control.
Crook Fred (Waukesha WI) West Michael R. (Hartland WI) Domenella Gino P. (Brookfield WI) Glasgow Kevin (North Fond du Lac WI), Heatsink bus for electronic switch.
Bhagwat Pradeep M. (Baltimore MD) Brotto Daniele C. (Baltimore MD) Walter Richard T. (Baldwin MD), Method and apparatus for varying the sample rate of a fast battery charger.
Johnson,Todd W.; Grzybowski,Dennis J.; Kubale,Mark A.; Rosenbecker,Jay J.; Scheucher,Karl F.; Meyer,Gary D.; Zeiler,Jeffrey M.; Glasgow,Kevin L., Method and system for protection of a lithium-based multicell battery pack including a heat sink.
Fernandez Jose Maria ; Coapstick Ronald Scot, Method for ultra-rapidly charging a rechargeable battery using multi-mode regulation in a vehicular recharging system.
Paul Steven (Tomah WI) Leonard Murray (Wisconsin Rapids WI) Schultz Mark (Mauston WI) Mengelt Kevin (Mauston WI) Colburn Robert (Green Bay WI), Power supply system for a telecommunication system.
Endo Takuya (Yokohama JA) Hirota Toshio (Yokohama JA), Power supply system having two different types of batteries and current-limiting circuit for lower output battery.
Hull Matthew P. (Jamestown RI) Taylor Alwyn H. (Wellesley Hills MA) Hruska Louis W. (Northboro MA) Friel Daniel D. (Woburn MA), Smart battery algorithm for reporting battery parameters to an external device.
Garrett Scott M. (Lawrenceville GA) Fernandez Jose M. (Lawrenceville GA) Patino Joseph (Pembroke Pines FL), Ultrafast rechargeable battery pack and method of charging same.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Battery pack.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Battery pack.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Lithium-based battery pack for a hand held power tool.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Lithium-based battery pack for a hand held power tool.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Lithium-based battery pack for a hand held power tool.
Johnson, Todd W.; Grzybowski, Dennis J.; Kubale, Mark A.; Rosenbecker, Jay J.; Scheucher, Karl F.; Meyer, Gary D.; Zeiler, Jeffrey M.; Glasgow, Kevin L., Method and system for protection of a lithium-based multicell battery pack including a heat sink.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.