This invention relates to a charging adapter for charging a battery of either a solar blind, a roller blind, a roman blind, a Venetian blind, a pleated blind, or an electric curtain all having the battery. The battery is intended to be charged by an output of an external DC power supply.
From JP 2019214871 A is known an electrically driven shading device includes a non-contact rechargeable battery which can supply power to a control substrate for controlling the open in/closing of a shading member. Thus, generally JP 2019214871 A discloses a charging adapter for charging a battery of a blind.
The subject matter of claim 1 differs from JP 2019214871 A in the characterizing features of claim 1.
It is typical in the art known to connect the power supply out puts' female plug to the male plug input of a battery of solar blinds, roller blinds, roman blinds, Venetian blinds, pleated blinds, electric curtains all having a DC battery, where the connection between the power supply and the battery is made by a thin power cord.
The rather thin power cord is however easily torn over, and the putting together of the rather small female plug (of the power supply) to the male plug of the battery is cumbersome and involves a high degree of placement accuracy.
Thus some disadvantages of the prior art solution exist:
The need has therefore been recognized for a charging adapter which obviates the foregoing and other limitations and disadvantages of the known art. Despite the various adapters and connecting wires in the prior art, there has heretofore not been provided a suitable, attractive and efficient solution to these problems and to overcome the mentioned disadvantages.
The invention will be explained by means of the following figures in which:
The other plug converter 40 has a flexible power cord 42, which cord 42 has a plug 44 at the one end of the flexible cord 42, and another plug 46 at the other opposite end of the flexible power cord 42.
The left plug 46 of the flexible cord 42 of the plug converter 40 is through a magnet connected to the plug 36 belonging to the other plug converter 30. Thus when the plug 36, shown above, is in the vicinity of the below plug 46, the two plug parts 36 and 46 simply connect and align through magnetic forces, which magnetic forces hold and force the two plugs 36 and 42 to stay correctly connected together.
The rightmost female plug 44 of the flexible cord 42 of the power cord 42 plug converter 40 is to be connected to a male input 24 of the DC battery 20 to be charged.
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In order to have a fixing point for the plug 46 (in order to achieve that the plug 46 does not hang loose, does not swing on the end of the cord 42) located at the end of the cord 42, the magnetic plug 46 is intended to be placed and fixed to, and into a hole 62 (two throughgoing holes 62 as an example are shown) of a surface 60. The surface 60 is located proximate or in a longer distance to the power supply 10 and to the battery 50. The surface 60 is e.g. a part of a window frame, a wall or the like. The surface 60 could also be a profile part/side of the solar blind, the roller blind, the roman blind, the Venetian blind, the pleated blind, and/or the electric curtain, where the blinds and the curtain need be powered to be operated by a DC motor. The DC motor is voltage compatible with the power supply 10, and the DC motor is connected to the battery 50 by means of the plug 58 powered through the battery power cord 52.
In general, in an embodiment of the charging adapters' four plugs, the four plugs 34, 36, 44, 46 and the flexible cord 42 each is provided with at least two wires/terminals for transfer ring two currents from/to a plus and a minus terminal of the battery 20, 50 and/or to the output 14 of the external power supply 10. Correspondingly, the four plugs 34, 36, 44, 46 each have two terminals.
Moreover, an additional wire—intended for serial data trans mission or for reversing the motor—is possible in two other embodiments of the charging adapters four plugs 34, 36, 44, 46 and the flexible cord 42. Accordingly, the four plugs 34, 36, 44, 46 each have three terminals, and the flexible cord 42, and the internal wiring of the plug converter 30 also comprises three wires.
In a preferred embodiment of the invention the plugs 34 and 46 are male with a number of protruding terminal(s), and the plugs 36 and 44 are female with holes for accommodation of the number of protruding terminal(s). The male plug 34 mates with the female output plug 14 of the power supply 10. The magnetic male plug 46 connects to the magnetic female plug 36, and the female plug 44 connects to the input male plug 24 of the battery 20. This paragraph apply in cases with two, three and more terminals/wires.
From the above it is the case that the plug 46 comprises a magnetic male plug, which is connectable to the plug 36, and the plug 36 comprises a magnetic female plug.
However, in another embodiment, the male and female parts/plugs are swapped. Thus the plug 46 is a magnetic female plug, which is connectable to the plug 36, which plug 36 then is a magnetic male plug.
Thus from the above implementations of the invention, some advantages exist:
While the foregoing embodiments of the adapter are at present considered to be preferred, it is understood that numerous variations—as an example different implementations of the plugs, number of terminals, male/female sex, wires etc. are also possible for a skilled person in such specific technology
Modifications may be made therein by those skilled in the art and it is intended to cover in the appended claims all such variations and modifications as fall within the true spirit and scope of the invention.
Number | Date | Country | Kind |
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PA 2020 00438 | Apr 2020 | DK | national |
Number | Date | Country | |
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Parent | 17918736 | Oct 2022 | US |
Child | 18378057 | US |