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Uninterruptible power supply

A technology of power supply and external power supply, applied in emergency power supply arrangements, collectors, electric vehicles, etc., can solve the problems of less cycle times, reduced UPS service life, battery power loss, etc., to improve service life and avoid battery power loss , to avoid the effect of long-term charging

Inactive Publication Date: 2020-09-08
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present disclosure, the inventors have found that the prior art has at least the following problems: when the depth of discharge of the storage battery (the percentage of the battery discharge capacity and the battery rated capacity) reaches below the target percentage of its rated capacity, the battery will be exhausted. Electricity, making its cycle times less and less, reducing the service life of UPS

Method used

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Embodiment Construction

[0050] In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0051] figure 1 is a structural schematic diagram of an uninterruptible power supply provided by an embodiment of the present disclosure, see figure 1 , the uninterruptible power supply includes: a storage battery E and a switch circuit.

[0052] The switch circuit includes a first triode switch branch 1 and a second triode switch branch 2 .

[0053] The first triode switch branch 1 is used to stop charging the battery E and control the battery E to supply power to the load when the charge of the battery E is higher than the first target voltage.

[0054] The second triode switch branch 2 is used to stop the battery E from supplying power to the load when the power of the battery E is lower than the second target voltage when sup...

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Abstract

The invention provides an uninterruptible power supply, and belongs to the field of power supply equipment. The uninterruptible power supply comprises a storage battery and a switching circuit, wherein the switching circuit comprises a first triode switching branch and a second triode switching branch, and the first triode switching branch is used for stopping charging the storage battery and controlling the storage battery to supply power to a load when the electric quantity of the storage battery during charging is higher than a first target voltage; the second triode switch branch is used for, when the electric quantity of the storage battery when supplying power to the load is lower than a second target voltage, stopping the storage battery from supplying power to the load, controllingan external power supply to charge the storage battery and controlling the external power supply to supply power to the load, and the first target voltage being greater than the second target voltage.

Description

technical field [0001] The disclosure relates to the field of power supply equipment, in particular to an uninterruptible power supply. Background technique [0002] UPS (Uninterrupted Power Supply, uninterrupted power supply) is a power supply that supplies uninterrupted power. It will not interrupt power supply due to short-term power outages, and can effectively protect equipment that requires high power stability. A UPS contains an energy storage device, usually a battery. When the mains input is normal, the UPS will stabilize the mains and supply it to the load. At this time, the UPS is an AC voltage stabilizer, and it also charges the battery; when the mains is interrupted (such as an accidental power outage) , The UPS immediately transfers the DC power of the battery to the load through the inverter switching method to continue to supply 220V AC power, so that the load can maintain normal operation and protect the load software and hardware from damage. [0003] Sin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J7/00
CPCH02J9/062H02J7/0063H02J7/00306
Inventor 熊欣梁伟万志辉
Owner WUHAN MARINE MACHINERY PLANT