Cordless tool system
First Claim
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1. A cordless tool system, comprising:
- a tool;
a lithium based battery pack for supplying power to the tool; and
a heat absorbing device operably coupled to the lithium based battery pack, wherein the heat absorbing device comprises a phase-change material, the phase-change material comprising a mixture of 80%-90% sodium acetate, 1%-5% sodium dodecyl benzene sulfonate, 1%-5% carboxymethyl cellulose, and 1%-5% sodium carbonate, wherein the tool has a power of equal to or more than 300 W, and wherein the ratio of discharging time to charging time of the lithium based battery pack is approximately 25;
35.
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Accused Products
Abstract
A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
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Citations
14 Claims
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1. A cordless tool system, comprising:
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a tool; a lithium based battery pack for supplying power to the tool; and a heat absorbing device operably coupled to the lithium based battery pack, wherein the heat absorbing device comprises a phase-change material, the phase-change material comprising a mixture of 80%-90% sodium acetate, 1%-5% sodium dodecyl benzene sulfonate, 1%-5% carboxymethyl cellulose, and 1%-5% sodium carbonate, wherein the tool has a power of equal to or more than 300 W, and wherein the ratio of discharging time to charging time of the lithium based battery pack is approximately 25;
35. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A cordless tool system, comprising:
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a tool; a lithium based battery pack for supplying power to the tool; and a heat absorbing device operably coupled to the lithium based battery pack, wherein the heat absorbing device comprises a phase-change material, the phase-change material comprising a mixture of 80%-90% sodium acetate, 1%-5% sodium dodecyl benzene sulfonate, 1%-5% carboxymethyl cellulose, and 1%-5% sodium carbonate, wherein the tool has a power of equal to or more than 300 W and an average working current of equal to or more than 12 A, and wherein the lithium based battery pack has a nominal voltage of equal to or more than 56V.
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14. A cordless tool system, comprising:
- a tool;
a lithium based battery pack for supplying power to the tool; anda heat absorbing device operably coupled to the lithium based battery pack, wherein the heat absorbing device comprises a phase-change material, the phase-change material comprising a mixture of 90%-99% polyethylene glycol and 1%-10% cda cellulose diacetate, wherein the tool has a power of equal to or more than 300 W, and wherein the ratio of discharging time to charging time of the lithium based battery pack is approximately 25;
35.
- a tool;
Specification