CN208046308U - A kind of UPS internal auxiliary power supplies for electric installation - Google Patents
A kind of UPS internal auxiliary power supplies for electric installation Download PDFInfo
- Publication number
- CN208046308U CN208046308U CN201820354218.0U CN201820354218U CN208046308U CN 208046308 U CN208046308 U CN 208046308U CN 201820354218 U CN201820354218 U CN 201820354218U CN 208046308 U CN208046308 U CN 208046308U
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- China
- Prior art keywords
- ups
- power supply
- bus
- accessory power
- diode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Power Conversion In General (AREA)
Abstract
The utility model is related to a kind of UPS internal auxiliary power supplies for electric installation, including uncontrollable rectifier module and DC/DC conversion modules, accessory power supply exchange input port in uncontrollable rectifier module connects UPS main circuit power grids, the positive diode of connecting between the DC bus anode of UPS main circuits of the accessory power supply DC bus of the DC/DC conversion modules, it is directly connected between the accessory power supply DC bus cathode and UPS main circuit cathode of DC/DC conversion modules, diode permission electric current flows to the DC bus of accessory power supply from UPS main circuit DC bus, block the electric current of negative direction.The accessory power supply of UPS is solved in the case that power grid is normal and the powerup issue of grid cut-off；Accessory power supply does not influence the output of UPS, does not bring harmonic wave and uneven influence to the output of UPS.
Description
Technical field
The utility model belongs to ups power field, more particularly, to a kind of UPS internal auxiliary power supplies for electric installation.
Background technology
Accessory power supply is needed inside ups power to provide working power for control, the driving circuit etc. inside UPS.It is auxiliary
It is a kind of device for converting electric energy to help power supply, and the input of accessory power supply can be alternating current, can also be direct current；Accessory power supply
Output is direct current（5V, ± 15V etc.）.Accessory power supply needs outside to be powered it, and when power grid is normal, accessory power supply can
Directly to take electricity from power grid；But when grid cut-off, accessory power supply must just take electricity to ensure auxiliary electricity from other power supplys
The normal output in source, thereby may be ensured that the normal work of ups power.Currently used method is taken from the output of ups power
Electricity can ensure that accessory power supply remains able to work normally in the case of grid cut-off in this way, but this method also has one
A little disadvantages：
1, due to generally using inside accessory power supply the mode of uncontrollable rectifier by AC rectification for direct current, meeting
Harmonic wave is generated, if taking electricity, the harmonic wave that accessory power supply generates that can influence the work of the load of UPS rear classes from the output of UPS.
2, since the exchange of accessory power supply input is mostly single-phase alternating current, the output of UPS can be caused uneven in this way.
Invention content
The utility model aims to solve the problem that drawbacks described above, provide a kind of UPS internal auxiliary power supplies for electric installation.
In order to overcome defect present in background technology, the utility model to solve technical solution used by its technical problem
It is：A kind of UPS internal auxiliary power supplies for electric installation, including uncontrollable rectifier module and DC/DC conversion modules, uncontrollable rectifier module
On accessory power supply exchange input port connect UPS main circuit power grids, the accessory power supply DC bus of the DC/DC conversion modules is just
Connect a diode, the anode of diode and the direct current mother of UPS main circuits between pole and the DC bus anode of UPS main circuits
Line anode connects, and the cathode of diode is connect with accessory power supply DC bus anode, the accessory power supply direct current of DC/DC conversion modules
It is directly connected between busbar cathode and UPS main circuit cathode, diode allows electric current to flow to auxiliary from UPS main circuit DC bus
The DC bus of power supply blocks the electric current of negative direction.
The utility model has the beneficial effects that：The accessory power supply of UPS is solved in the case that power grid is normal and grid cut-off
Powerup issue；Accessory power supply does not influence the output of UPS, does not bring harmonic wave and uneven influence to the output of UPS.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
Specific implementation mode
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear to be made to the scope of protection of the utility model
Define.
A kind of UPS internal auxiliary power supplies as shown in Figure 1 become mold changing for electric installation, including uncontrollable rectifier module and DC/DC
Block, the accessory power supply exchange input port in the uncontrollable rectifier module connect UPS main circuit power grids, DC/DC conversion modules it is auxiliary
Help between power DC bus anode and the DC bus anode of UPS main circuits and connect one diode, the anode of diode and
The DC bus anode of UPS main circuits connects, and the cathode of diode is connect with accessory power supply DC bus anode, DC/DC transformation
It is directly connected between the accessory power supply DC bus cathode and UPS main circuit cathode of module, diode allows electric current from the main electricity of UPS
Road DC bus flows to the DC bus of accessory power supply, blocks the electric current of negative direction.
The accessory power supply of UPS is solved in the case that power grid is normal and the powerup issue of grid cut-off；Accessory power supply does not influence
The output of UPS does not bring harmonic wave and uneven influence to the output of UPS.
The above description is only the embodiments of the present invention, and it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (1)
1. a kind of UPS internal auxiliary power supplies for electric installation, it is characterised in that：Become mold changing including uncontrollable rectifier module and DC/DC
Block, the accessory power supply exchange input port in the uncontrollable rectifier module connect UPS main circuit power grids, the DC/DC conversion modules
Accessory power supply DC bus anode and the DC bus anode of UPS main circuits between connect a diode, the sun of diode
Pole is connect with the DC bus anode of UPS main circuits, and the cathode of diode is connect with accessory power supply DC bus anode, DC/DC
It is directly connected between the accessory power supply DC bus cathode and UPS main circuit cathode of conversion module, the diode allows electric current
The DC bus that accessory power supply is flowed to from UPS main circuit DC bus, blocks the electric current of negative direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354218.0U CN208046308U (en) | 2018-03-15 | 2018-03-15 | A kind of UPS internal auxiliary power supplies for electric installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820354218.0U CN208046308U (en) | 2018-03-15 | 2018-03-15 | A kind of UPS internal auxiliary power supplies for electric installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208046308U true CN208046308U (en) | 2018-11-02 |
Family
ID=63947593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820354218.0U Expired - Fee Related CN208046308U (en) | 2018-03-15 | 2018-03-15 | A kind of UPS internal auxiliary power supplies for electric installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208046308U (en) |
-
2018
- 2018-03-15 CN CN201820354218.0U patent/CN208046308U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 Termination date: 20210315 |