Digital pen

Abstract

The invention relates to a digital pen with an elongated pen part (11) having a front pen part section (12) with a writing element for writing on a surface such as paper or a touchscreen, and a pen part section (13) arranged further back relative to the front pen part section (12), in which a rechargeable battery (14) for supplying power to at least one electronic component of the front pen part section (12) is arranged - entirely or partially. The invention is characterized in that the protective cap (27) is designed and, in a charging-connection state in which it is detachably fastened to the pen part (11), is coupled to the rechargeable battery (14) in such a way that charging energy from a charging source transmitted to the protective cap (27) for charging the rechargeable battery (14) is transferred or can be transferred to the latter.

Claims

[1] Digital pen with an elongated pen part (11) having a front pen part section (12) with a writing element, in particular designed as a writing tip, for writing on a surface such as paper or a touchscreen, and a pen part section (13) arranged further back than the front pen part section (12), in particular having a housing, in which - wholly or partially - a particularly elongated, rechargeable battery (14) for supplying power to at least one electronic component of the front pen part section (12) is arranged, and with a (separable) particularly elongated protective cap (27), characterized bythat the protective cap (27) is designed in such a way and, in a charging connection state in which it is detachably fastened to the pin part (11), is coupled to the rechargeable battery (14) in such a way that charging energy transmitted to the protective cap (27) from a charging source, in particular an electrically operated one, for charging the rechargeable battery (14) is transmitted or can be transmitted further to the latter. [2] Digital pen according to claim 1, characterized by that the protective cap (27) has a receiving means to which the charging energy of the charging source can be transmitted in a wired or wireless manner, in particular in a wired manner by means of electric current or in a wireless manner inductively, capacitively or by means of electromagnetic waves. [3] Digital pen according to claim 2, characterized bythat the receiving means is formed by contacts to which electrical charging current from the charging source can be supplied for charging the rechargeable battery (14), in particular electrical contacts which are components of an interface arranged on the protective cap (27) for the detachable connection of a power cable or power and data cable connected or connectable to the charging source. [4] Digital pen according to claim 2, characterized by that the receiving means comprises a unit for inductively or capacitively receiving the charging energy or a unit for receiving electromagnetic waves transmitting the charging energy. [5] Digital pen according to one or more of the preceding claims, characterized byin that the receiving means of the protective cap (27) is coupled to the rechargeable battery (14) in a non-conductive manner, in particular inductively, capacitively or by means of electromagnetic waves, and / or in a conductive manner, in the charging connection state of the protective cap (27) and the pin part (11), so that the charging energy transmitted to the receiving means is passed on to the rechargeable battery (14). [6] Digital pen according to claim 5, characterized by that the protective cap (27) for transmitting the charging energy to the rechargeable battery (14) has a transmitting unit, in particular comprising a transmitting coil, of an inductive energy transmission device of the digital pen, which is connected by a line to the receiving means of the protective cap (27), in particular the electrical contacts. [7] Digital pen according to claim 6, characterized bythat the pen part (11), in particular the front pen part section (12) or one or the pen part section (13) arranged further back, has a receiving unit of the inductive energy transmission device of the digital pen, in particular comprising a receiving coil, which is connected to the rechargeable battery (14) by a cable and which interacts inductively with the transmitting unit in order to transmit the charging energy for charging the rechargeable battery (14) to the receiving unit. [8] Digital pen according to claim 1, characterized byin that the electrical contacts of the protective cap (27) forming the receiving means are connected in a wired manner in the charging connection state of the protective cap (27) and the pin part (11) to electrical contacts arranged on the pin part (11), in particular on the front or the pin part section (13) arranged further back, which electrical contacts in turn are electrically conductively connected to the rechargeable battery (14). [9] Digital pen according to claim 8, characterized byin that the electrical contacts of the receiving means of the protective cap (27), which are arranged in particular further forward, are connected in a wired manner to additional electrical contacts of the protective cap (27), which are arranged in particular further back, wherein the additional electrical contacts of the protective cap (27), in the connected state of the protective cap (27) and the pin part (11), are in contact with the electrical contacts of the pin part (11), which are electrically conductively connected to the rechargeable battery (14). [10] Digital pen according to one or more of the preceding claims, characterized by that the receiving means of the protective cap (27) is arranged on a (front) end face of the protective cap (27) or on a particularly circumferential outer side thereof. [11] Digital pen according to one or more of the preceding claims, characterized bythat the electronic component that can be powered by the rechargeable battery (14) is the writing element or a component for operating the writing element. [12] Digital pen according to one or more of the preceding claims, characterized by that the protective cap (27), in the charging-connection state in which it is detachably fastened to the pen part (11), covers the writing element and at least a partial section of the front pen part section or one or the pen part section (13) arranged further back, preferably comprising the (rear) free end of the pen part (11). [13] Digital pen according to claim 12, characterized byin that, in the event that the protective cap (27) covers the pen part section (13) arranged further back in the charging connection state, the protective cap (27) can be releasably fastened to the pen part (11) in a further position in which it covers the writing element and at least a partial section of the front pen part section. [14] Digital pen according to one or more of the preceding claims, characterized byin that, for removing the rechargeable battery (14), the pin section (13) arranged further back is detachably fastened to another pin section, in particular the front pin section (12), preferably by means of a screw, snap or bayonet connection, in particular in such a way that the rechargeable battery (14) can be removed from the pin section (13) arranged further back in a state in which the pin section (13) arranged further back is detached from the other pin section, via an opening in the pin section (13) arranged further back facing the other pin section, and / or in that, for removing the rechargeable battery (14), the rechargeable battery (14) is detachably arranged in the pin section (13) arranged further back. [15] Digital pen according to one or more of the preceding claims, characterized bythat the rechargeable battery (14) has at least two electrical contacts via which electrical charging current can be supplied to the rechargeable battery (14). [16] Digital pen according to claim 15, characterized by that one or both of the electrical contacts of the rechargeable battery (14) are arranged in the region of the front end of the rechargeable battery (14) facing the writing element and / or adjacent to this end, and / or that one or both of the electrical contacts of the rechargeable battery (14) are arranged in the region of the rear end of the rechargeable battery (14) facing away from the writing element or adjacent to this end. [17] Digital pen according to one or more of the preceding claims, at least according to claim 15, characterized bythat both electrical contacts of the rechargeable battery (14), via which this electrical charging current can be supplied, are each detachably electrically connected to an electrical contact of the front pin section (12), which is each electrically conductively connected to the electronic component of the front pin section (12), namely for supplying power to the electronic component. [18] Digital pen according to one or more of the preceding claims, at least according to claim 15, characterized byin that the rechargeable battery (14), in the event that the two electrical contacts of the rechargeable battery (14) for supplying the charging current are arranged in the region of the rear end of the rechargeable battery (14) facing away from the writing element or adjacent to this end, has two further electrical contacts in the region of the front end facing the writing element or adjacent to this for supplying power to the electronic component of the front pin section (12), each of which is detachably electrically connected to a respective electrical contact of the front pin section (12) which is electrically conductively connected to the electronic component of the front pin section (12). [19] Digital pen according to one or more of the preceding claims, at least according to claim 15, characterized bythat each of the two electrical contacts of the rechargeable battery (14) for supplying the charging current or each of the two electrical contacts of the rechargeable battery (14) for supplying power to the electronic component is part of a particularly common plug-in connector part, in particular a plug-in connector part to which (at least) one power line, preferably designed as a power cable, is connected, which is electrically connected to one of the two poles of the rechargeable battery (14). [20] Digital pen according to claim 19, characterized bythat the or each plug connector part is detachably connected to form an electrical plug connection with a plug connector counterpart which has an electrical contact of the front pin section (12), in particular an electrical contact via which charging current can be supplied to the rechargeable battery (14) and / or via which supply current from the rechargeable battery (14) can be supplied to the electronic component of the front pin section (12). [21] Digital pen according to one or more of the preceding claims, at least according to claim 15, characterized bythat each of the two electrical contacts of the rechargeable battery (14) for supplying the charging current or each of the two electrical contacts of the rechargeable battery (14) for supplying power to the electronic component comprises or is formed by a contact surface arranged directly on the rechargeable battery (14), in particular on its battery housing, preferably forming one of the poles of the rechargeable battery (14), in particular a contact surface made of electrically conductive material. [22] Digital pen according to claim 21, characterized by that one of the contact surfaces forms the positive pole of the rechargeable battery (14) and the other contact surface forms the negative pole of the rechargeable battery (14). [23] Digital pen according to claim 21 or 22, characterized bythat one or both contact surfaces are arranged on a preferably angular, in particular transverse to the longitudinal axis of the pin part (11), in particular flat end face of the rechargeable battery (14) forming the front free end of the rechargeable battery (14). [24] Digital pen according to claim 21, 22 or 23, characterized by that one or both contact surfaces are annular in shape, and / or that a contact surface forms the circumferential inner side of a hollow cylindrical section of the rechargeable battery (14). [25] Digital pen according to claim 24, characterized by that the two annular contact surfaces are arranged concentrically. [26] Digital pen according to one or more of the preceding claims, at least according to claim 15, characterized bythat the pin section (13) arranged further back has a particularly elongated, preferably hollow-cylindrical receiving space in which the rechargeable battery (14) is arranged in a completely or partially detachable manner, in particular with sliding contact with a circumferential receiving space wall laterally delimiting the receiving space. [27] Digital pen according to one or more of the preceding claims, characterized by that the pin part (11), in particular the front or the rear pin part section (12, 13), has an electronic module for managing the charging process of the rechargeable battery (14), in particular an electronic module for managing the charging process, which is electrically connected by a line to the two electrical contacts of the rechargeable battery (14) for supplying the charging current.