CHARGING DEVICE FOR A BATTERY PACK FOR A HAND-HELD POWER TOOL
First Claim
1. A charging device for electrical charging of a battery pack of a hand-held power tool, comprising:
- a charging interface to establish at least one of an electrical and mechanical coupling of the charging device to an interface unit of the battery pack, the charging interface having at least two counter-contact elements for at least one of electrical and mechanical contacting, of corresponding contact elements of the battery pack; and
a charging control unit electrically connected to the counter-contact elements and designed to read in and further process information about the counter-contact elements;
wherein the counter-contact elements include a third counter-contact element designed to contact a corresponding third contact element of the battery pack, the third counter-contact element being a signal contact element and designed to forward information transmitted by the third contact element with respect to a first set of predefined battery system parameters of the battery pack to the charging control unit; and
wherein the counter-contact elements include a fourth counter-contact element for contacting a fourth contact element of the battery pack, the fourth counter-contact element being a signal contact element and designed to forward information transmitted by the fourth contact element with respect to an instantaneous operating parameter of the battery pack to the charging control unit.
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Accused Products
Abstract
A charging device for electrical charging of a battery pack of a hand-held power tool including a charging interface for establishing an electrical and/or mechanical coupling of the charging device to an interface unit of the battery pack, the charging interface having at least two counter-contact elements for electrical and/or mechanical contacting of corresponding contact elements of the battery pack. The counter-contact elements include a third counter-contact element designed to forward information transmitted by the third contact element with respect to a first set of predefined battery system parameters of the battery pack to the charging control unit, and a fourth counter-contact element designed to forward information transmitted by the fourth contact element with respect to an instantaneous operating parameter of the battery pack to the charging control unit.
17 Citations
12 Claims
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1. A charging device for electrical charging of a battery pack of a hand-held power tool, comprising:
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a charging interface to establish at least one of an electrical and mechanical coupling of the charging device to an interface unit of the battery pack, the charging interface having at least two counter-contact elements for at least one of electrical and mechanical contacting, of corresponding contact elements of the battery pack; and a charging control unit electrically connected to the counter-contact elements and designed to read in and further process information about the counter-contact elements; wherein the counter-contact elements include a third counter-contact element designed to contact a corresponding third contact element of the battery pack, the third counter-contact element being a signal contact element and designed to forward information transmitted by the third contact element with respect to a first set of predefined battery system parameters of the battery pack to the charging control unit; and wherein the counter-contact elements include a fourth counter-contact element for contacting a fourth contact element of the battery pack, the fourth counter-contact element being a signal contact element and designed to forward information transmitted by the fourth contact element with respect to an instantaneous operating parameter of the battery pack to the charging control unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A tool system for charging a battery pack of a hand-held power tool, comprising:
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a charging device including a charging interface to establish at least one of an electrical and mechanical coupling of the charging device to an interface unit of the battery pack, the charging interface having at least two counter-contact elements for at least one of electrical and mechanical contacting, of corresponding contact elements of the battery pack, the charging device further including a charging control unit electrically connected to the counter-contact elements and designed to read in and further process information about the counter-contact elements, wherein the counter-contact elements include a third counter-contact element designed to contact a corresponding third contact element of the battery pack, the third counter-contact element being a signal contact element and designed to forward information transmitted by the third contact element with respect to a first set of predefined battery system parameters of the battery pack to the charging control unit, and wherein the counter-contact elements include a fourth counter-contact element for contacting a fourth contact element of the battery pack, the fourth counter-contact element being a signal contact element and designed to forward information transmitted by the fourth contact element with respect to an instantaneous operating parameter of the battery pack to the charging control unit; and the battery pack having an interface unit for at least one of electrical and mechanical coupling of the battery pack to the charging device, the interface unit including contact elements for at least one of electrical and mechanical contacting of corresponding counter-contact elements of the charging device, the contact elements having a third contact element via which information is transmitted to the charging control unit of the charging device, and the contact elements having a fourth contact element via which information with respect to an instantaneous operating parameter of the battery pack is transmitted to the charging control unit of the charging device. - View Dependent Claims (8, 9, 10)
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11. A method for optimized charging of a battery pack of a hand-held power tool including a charging device, the method comprising:
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electrically connecting the battery pack to the charging device via an interface unit on a battery pack side and a charging interface on a charging device side; at least one of;
(i) reading in information of at least one first set of predefined battery system parameters of the battery pack including an end-of-discharge voltage of the battery pack, and performance class of the battery pack, and (ii) reading in information of at least one second set of predefined battery system parameters of the battery pack including at least one of;
an end-of-charge voltage of the battery pack, number of cells of the battery pack, and a cell chemical used in the battery pack by a charging control unit of the charging device; andcontrolling the charging process of the battery pack by the charging control unit of the charging device, the charging process being regulated at least partially as a function of at least one of the first set and the second set of predefined battery system parameters of the battery pack. - View Dependent Claims (12)
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Specification