Patent Application
20090161332
The present invention relates to a power supply, and more particularly to a power supply that can provides direct current to electronic devices and alternate current to electric devices, respectively.
A common extension socket has a plurality of sockets, which provide alternate current to electric devices. Common electronic devices are usually disposed with a direct current adapter to lower the voltage of alternate current and to rectify it to alternate current, which is output to power electronic devices. However, for a direct current adapter, there is only one direct-current output plug for electronic devices. If alternate current is demanded for other electric devices, another extension with sockets is necessary to acquire alternate current. Therefore, it is not only inconvenient for users, but also hard to keep power cords organized.
Consequently, it is necessary to design a novel socket with power supply to overcome the drawbacks described above.
In view of the foregoing shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally invented a socket with power supply in accordance with the present invention.
The primary objective of the present invention is to provide a socket with power supply that can provides direct current to electronic devices and alternate current to electric devices, respectively.
Another objective of the present invention is to provide a socket with power supply disposed with a cord reel to neatly organize power cords.
The present invention discloses a socket with power supply, comprising a housing having a upper cover and a lower cover which are connected together to form a receiving space and having at least a socket aperture, a first opening, and a second opening thereon; a transformer accommodated in the receiving space and connected with an alternate current source through a plug protruding out of the first opening; at least a socket accommodated in the receiving space, coupled with the alternate current source, able to protrude out of the socket aperture, and capable of outputting the alternate current; a rectifying circuit coupled with the transformer and capable of rectifying the alternate current to direct current; and an output power plug coupled with the rectifying circuit and protruding out of the second opening through a power cord to output the direct current to an electronic device.
To make it easier for our examiner to understand the objective of the invention, its structure, innovative features, and performance, we use a preferred embodiment together with the attached drawings for the detailed description of the invention.
a) schematically illustrates a cord reel further provided in the present invention;
b) schematically illustrates the backside of a cord reel of the present invention; and
The structure, technical measures and effects of the present invention will now be described in more detail hereinafter with reference to the accompanying drawings that show various embodiments of the invention.
With reference to
Moreover, the third opening 114 of the upper cover 11 is further disposed at its circumference with three equidistant locating rods 116. The lower cover 12 is further disposed with a rotating axle 121, which corresponds roughly to the center of the third opening 114, fixed slots 122 formed at both sides of the rotating axle 121, and on one side of the rotating axle 121, at least a protruding rod 123, which is with a spring slot 124 therearound.
The transformer 20 is accommodated in the receiving space 13 and can be connected with an alternate current source (not shown) through a plug 60 protruding out of the first opening 112, wherein the alternate current source is, for example but not limited, 110V or 220V, which is conventional art and will not be discussed hereafter. Also, the plug 60 and the transformer 20 may be further disposed with a power cord 65.
The socket 30 is accommodated in the receiving space 13, is coupled with the alternate current source, and may protrudes out of the socket aperture 111 to provide the alternate current to electric devices (not shown).
The rectifying circuit 40 is coupled with the transformer 20 and transforms the alternate current into direct current, and is, for example but not limited to, a half-wave rectifying circuit or full-wave rectifying circuit. The direct current generated by the transformer 20 may provide power for an electronic device (not shown), which is, for example but not limited to, a notebook computer, personal digital assistant (PDA), or portable audio-video player, and so on.
The output power plug 50 is coupled with the rectifying circuit 40, protrudes out of the second opening 113, and outputs the direct current to the electronic device, which is conventional art and will not be discussed hereafter. Also, the rectifying circuit 40 and the output power plug 50 may be further disposed with a power cord 55.
Further, a socket with power supply of the present invention is further disposed with a regulating circuit 70, which is coupled with the output end of the rectifying circuit 40 to stabilize the direct current output.
Furthermore, a socket with power supply of the present invention is further disposed with a printed circuit board (not shown), which is accommodated in the receiving space 13 to hold the transformer 20, the socket 30, the rectifying circuit 40, and the regulating circuit 70, and which is conventional art and will not be discussed hereafter.
Furthermore, a socket with power supply of the present invention is further disposed with a cord reel 90, which is accommodated in the receiving space 13, to draw the power cord 55 into the receiving space 13.
With reference to
The two disc springs 92 and 93 are coupled with the positive and negative power sources of the power cord 55, respectively.
The rotating disc 94 accommodated in the receiving space 13 has an empty hole 941 to receive the spiral spring 91, and is disposed with three equidistant locating holes 942 and three equidistant engage slots 943 on its circumference for locating and securing the locating rods 116. The interiors of the locating holes 942 are upwardly disposed with a protruding fixed plate 944, respectively.
The fixed copper ring 95 is secured onto the upper cover 11 and at its exterior, is disposed with three equidistant protruding ears 951, which are formed at their centers to have a circular hole 952, respectively, aligned with the corresponding locating rod 116.
The copper ring 96 is secured onto the fixed copper ring 95 and disposed with an external connection point 961 and an internal connection point 962 to contact with the disc springs 92 and 93, respectively, so as to conduct the current output from the transformer 20.
The compression spring 97 is installed onto the protruding rod 123 and positioned in the spring slot 124. The rotating disc control key 98 protrudes out of the fourth opening 115 and accommodates the compression spring 97 and a protruding tip 981 is formed by extending from the one side of the bottom of the rotating disc control key 98.
When the present invention is being implemented, the rotating disc control key 98 is pushed upward with the force exerted by the compression spring 97 and the protruding tip 981 of the rotating disc control key 98 is engaged with the engage slot 943 of the rotating disc 94, such that the power cord 55 will not reel back automatically when being pulled out. When the rotating disc control key 98 is pressed down, the protruding tip 981 of the rotating disc control key 98 moves away from the engage slot 943 of the rotating disc 94, such that the restoring force exerted by the spiral spring 91 reels back the power cord 55 automatically.
Consequently, with implementation of a socket with power supply according to the present invention, it is capable to output direct current to provide electronic devices and alternate current to provide common electric devices and a cord reel further disposed at the present invention can draw power cord into a receiving space. The novel design can indeed overcome the drawbacks of the conventional art.
The present invention provides a feasible solution, and a patent application is duly filed accordingly. However, it is to be noted that the preferred embodiments disclosed in the specification and the accompanying drawings are not intended to limit the invention. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and thus the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
