Voltage transformer having a wire-winding mechanism

Details Voltage transformer having a wire-winding mechanism Voltage transformer having a wire-winding mechanism

2000-10-26

2001-10-16

Nguyen, Matthew (Department: 2838)

Electric power conversion systems

Current conversion

Encased in plug housing

Reexamination Certificate

active

06304476

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a voltage transformer having a wire-winding mechanism and, more particularly, to a voltage transformer having a power wire capable of automatically winding, whose length can be adjusted according to necessity so that entanglement of wire due to a too-long length of external wire or inconvenience of use due to a too-short length of external wire will not arise.
BACKGROUND OF THE INVENTION
Appropriate communication wires need to be accommodated to achieve electrical connection when using communications apparatuses such as computers, modems, telephones, or facsimile apparatuses. To avoid entanglement of wire due to a too-long length of external communication wire or inconvenience of use due to a too-short length of external communication wire, several kinds of wire-winding boxes applicable to various kinds of communications apparatuses have been proposed. Most of the wire-winding boxes comprise basically a box body, a housing, a communication wire, two winding disks, and two scroll springs. Thereby, the plug of the communication wire can be plugged on sockets of communications apparatuses to accomplish communications of information.
A communication wire may show a tight state due to the resiliency of the scroll spring when it is pulled out from a conventional wire-winding box so that a proper length of the communication wire cannot be kept outside, resulting in much trouble in use for the user.
It is inevitable to use voltage transformers such as voltage-transforming ectifiers, switching transformers, and car chargers in present communications apparatuses. However, prior art wire-winding boxes are not suitable to voltage transformers. Moreover, for the power wire of a voltage transformer to be practical in use, it must have a certain length. But if it is too long or too short, entanglement of wire or inconvenience of use may arise.
The present invention aims to resolve the above problems.
SUMMARY OF THE INVENTION
The primary object of the present invention is to provide a voltage transformer having a wire-winding mechanism, whereby a long length of the power wire can be wound and received therein using the wire-winding mechanism. The power wire can be pulled out directly from the voltage transformer. A certain restoring tensile force can be kept due to the action of the scroll spring on the power wire so that the power wire can be wound back into the voltage transformer successfully. Thereby, wire entanglement due to a too-long length of external wire or inconvenience of use due to a too-short length of external wire will not arise.
To achieve the above object, the present invention provides a voltage transformer having a wire-winding mechanism, which comprises a housing, a voltage-transforming circuit unit, and a wire-winding mechanism. The voltage-transforming circuit unit is installed in the housing and is connected to a power wire. The wire-winding mechanism comprises a box body, a winding disk, and a scroll spring. The box body is installed in the housing and has a wire tank formed therein. The winding disk is pivotally installed in the wire tank. The power wire is wound around the winding disk. One end of the power wire can protrude out of the box body. The scroll spring is installed in the box body and is connected to the winding disk. A voltage transformer having a wire-winding mechanism is thus formed.
The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawings, in which:


REFERENCES:
patent: 4559575 (1985-12-01), Noto et al.
patent: 6176358 (2001-01-01), Hsin
patent: 6199674 (2001-03-01), Liao

Affiliated with

Also associated with

Rating

Voltage transformer having a wire-winding mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage transformer having a wire-winding mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage transformer having a wire-winding mechanism will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2579463