Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2002-06-27
2003-12-09
Martin, David (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S801000, C307S150000
Reexamination Certificate
active
06661669
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to an uninterrupted power supply and, more particularly, to an uninterrupted power supply that is dimensionally reduced so as to enable a convenient mounting.
BACKGROUND OF THE INVENTION
Uninterrupted power supply (UPS) devices of approximately 1000 watts or less electrical power are principally used in computers, computer peripheral components, or other conventional machines. In the case of computers, because some data stored in the memory when the computer is turned on may be subsequently erased if the power is turned off, the UPS device allows to provide the necessary power supply when the external local power is turned off. The UPS is therefore an important device that enables to prevent accidental data erasure due to power supply cutoff.
The general structure of a traditional UPS device principally comprises a connecting circuitry, an iron-core voltage transformer electrically connected to the connecting circuitry, and a charging battery electrically connected to the connecting circuitry and a voltage converter. Thereby, a direct voltage of the charging battery can be converted to an alternating voltage of city local power supply to prevent a cutoff of the power source. However, regardless of stand-by state or online state, the above structure is a closed assembly structure, and the iron-core voltage transformer necessitates a substantial occupation space, which increases the external size of the UPS detrimental to its mount. Moreover, the charging battery may be completely attached in the inner structure of the UPS. To change the charging battery, the entire structure of the UPS thus has to be dismantled, which is inconvenient and may further damage the external aesthetic aspect of the UPS. The above disadvantages therefore do not satisfy the demands of UPS with a smaller size.
SUMMARY OF THE INVENTION
Accordingly, it is therefore a principal object of the invention to provide a structure of uninterrupted power supply (UPS) with a reduced size to overcome the above inconveniences.
To attain the above and other objectives, a structure of UPS of the invention comprises a case having an opening over which is mounted a cover. A fastening slot is provided on an inner side of the case proximate to the opening. Two outer lateral sides of the case further include a plurality of heat dissipating elements. The cover further includes at least a fastening projection corresponding to the fastening slot. The cover thereby detachably assembles with the case to enable a change of internal components of the UPS. The structure of the UPS further comprises an annular voltage transformer having a reduced size, the general size of the UPS is thereby reduced to allow convenient carrying and easy mounting in a reduced mounting space.
To provide a further understanding of the invention, the following detailed description illustrates embodiments and examples of the invention, this detailed description being provided only for illustration of the invention.
REFERENCES:
patent: 5596479 (1997-01-01), Campbell et al.
patent: 6121889 (2000-09-01), Janda et al.
patent: 6200159 (2001-03-01), Chou
patent: 6294721 (2001-09-01), Oravetz et al.
patent: 6421233 (2002-07-01), Hong
patent: 6456507 (2002-09-01), Yang et al.
patent: 6476729 (2002-11-01), Liu
Birch & Stewart Kolasch & Birch, LLP
Martin David
Phan Thanh S.
LandOfFree
Uninterrupted power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Uninterrupted power supply, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uninterrupted power supply will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3162447