Electric power conversion systems – Current conversion – Encased in plug housing
Reexamination Certificate
1999-09-02
2001-05-15
Wong, Peter S. (Department: 2838)
Electric power conversion systems
Current conversion
Encased in plug housing
C439S172000
Reexamination Certificate
active
06233167
ABSTRACT:
FIELD OF THE INVENTION
The present invention is related to a power-transforming device, and especially to an adapter. The power-transforming device of the present invention is very convenient to be carried because the electric wires and plugs can be extracted from the power-transforming body and be collected separately.
BACKGROUND OF THE INVENTION
The power-transforming devices, especially adapters, are generally used in many kinds of machines and electric apparatuses, such as the radios, CD players, printers, and notebook computers. They need adapters to transform AC input powers into appropriate DC output powers having different voltages to fit their different uses.
FIG. 1
is a conventional adapter having an adapter body
11
, an electric wire
12
, a DC plug
13
, and an AC plug
14
. The AC power inputted from the AC plug
14
is transformed into a DC power in the adapter body
11
, and the DC power is outputted from the DC plug
13
through the electric wire
12
into machines and electric apparatuses.
FIG. 2
is another conventional adapter which is often used in a notebook computer. The adapter body
22
is still used for transforming an AC input power into a DC output power, and the DC power is still outputted from the DC plug
24
through the electric wire
23
into the notebook computer. Differently, the AC plug
21
is extractably mounted in a jack
25
of the adapter body. When the adapter is not in use, the AC plug
21
can be pulled out of the jack
25
, but the AC plug
21
is connected to jack
25
only when the adapter is in use. Because the AC plug can be extracted from the adapter, this adapter is more convenient to be packed up and carried. This advantage is especially important to the notebook computer.
However, these two conventional adapters still have many limitations and disadvantages as follows:
1. The DC plug is connected to the adapter body so that the adapter is not truly convenient to be carried.
2. The electric wire is connected to the adapter body so that it is not easy to coil up the wire.
3. Because the forms of the AC and DC plugs have to be altered with different power-consuming and power-supplying systems and the plugs are connected to the adapter bodies, the adapter bodies have to be changed accordingly while the systems are changed. Therefore, not only is the using efficiency of the adapter bodies dropped but the production cost of the assembled system is increased.
SUMMARY OF THE INVENTION
It is therefore an object of the present invention to provide a novel power-transforming device such that the aforementioned limitations and difficulties encountered by the prior art can be overcome.
It is another object of the present invention to provide a novel power-transforming device which is very convenient to be carried.
It is a further object of the present invention to provide a novel power-transforming device having electric wires which can be collected and coiled up easily.
It is a further object of the present invention to provide a novel power-transforming device which can effectively increase the using efficiency of the power-transforming body.
In a preferred embodiment of the present invention, the power-transforming device of the present invention includes a power-transforming body for transforming an input power into a transformed power, and an output port electrically connected to and extractably mounted in the power-transforming body for outputting the transformed power.
Specifically, the power-transforming device is an adapter, the input power is an AC power, the transformed power is a DC power, and the output port is a DC plug.
According to the present invention, the power-transforming body further includes a driving element connected to connected to the output port for being exerted a force thereon, thereby extracting the output port partly out of the power-transforming body when the power-transforming device is in use, and returning the output port back to the power-transforming body when the power-transforming device is not in use. Preferably, the driving element is mounted on a side surface or an upper surface of the power-transforming body.
According to the present invention, the power-transforming body further includes a first coupling element, a first conducting port mounted on a side surface thereof. In addition, the power-transforming device further includes a wire-collection body detachably connected to the side surface of the power-transforming body. The wire-collection body includes a second conducting port mounted on a side surface thereof and electrically connected to the first conducting port of the power-transforming body for receiving the transformed power from the power-transforming body when the wire-collection body is attached to the power-transforming body, a second coupling element mounted on the surface thereof for being engaged with the first coupling element of the power-transforming body, an output port extractably mounted therein for outputting the transformed power from the power-transforming body, and a coil of wire having one end electrically connected to the second conducting port and the other end electrically connected to the output port for transmitting the transformed power from the second conducting port to the output port.
Preferably, both of the first conducting port and the second conducting port are elastic pieces. The wire-collection body is attached to the side surface of the power-transforming body through an engagement of the first coupling element and the second coupling element when the power-transforming device is in use, and the wire-collection device can be detached from the power-transforming body when the power-transforming device is not in use. The output port of the wire-collection body is extracted out of the wire-collection body when the power-transforming device is in use, and returned to the wire-collection body when the power-transforming device is not in use. In addition, the wire-collection body may further include a locking hole for locking the output port thereof when the power-transforming device is not in use.
According to the present invention, the power-transforming device further includes a transforming joint detachably connected to the side of the power-transforming body. The transforming joint includes a third conducting port mounted on a side surface thereof and electrically connected to the first conducting port of the power-transforming body for receiving the transformed power from the power-transforming body when the transforming joint is attached to the power-transforming body, a third coupling element mounted on the side surface thereof for being engaged with the coupling element of the power-transforming body, and an output port electrically connected to the third conducting element for outputting the transformed power from the power-transforming body. Preferably, the output port of the transforming joint is a D-type connector.
In another preferred embodiment of the present invention, the power-transforming device includes a power-transforming body for transforming an input power into a transformed power, an output port electrically connected to and extractably mounted in the power-transforming body for outputting the transformed power, and a driving element mounted on a surface of the power-transforming body and connected to the output port for being exerted a force thereon, thereby extracting the output port partly out of the power-transforming body when the power-transforming device is in use, and returning the output port back to the power-transforming body when the power-transforming device is not in use.
In a further preferred embodiment of the present invention, the power-transforming device includes a power-transforming body having a first conducting port for transforming an input power into a transformed power, and a wire-collection body detachably connected to the power-transforming body having a second conducting port electrically connected to the first conducting port for receiving the transformed power from the power-transforming body and
Chen Chun-Chen
Ho Ming-Che
Delta Electronics , Inc.
Laxton Gary L.
Rosenman & Colin LLP
Wong Peter S.
LandOfFree
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