CN207853473U - A kind of UPS uninterruptible power supplies with efficient power filter - Google Patents
A kind of UPS uninterruptible power supplies with efficient power filter Download PDFInfo
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- CN207853473U CN207853473U CN201820250724.5U CN201820250724U CN207853473U CN 207853473 U CN207853473 U CN 207853473U CN 201820250724 U CN201820250724 U CN 201820250724U CN 207853473 U CN207853473 U CN 207853473U
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- magnetic bead
- differential mode
- rcd
- filters
- power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses a kind of UPS uninterruptible power supplies with efficient power filter, it includes the power port unit set gradually, RCD filter units, RC filter units, common mode capacitance unit and ups power input terminal, it is connected by smoothing choke LC between the power port unit and the RCD filter units, is connected by differential mode choke coil LD between the RCD filter units and the RC filter units.The utility model effectively inhibits the common-mode noise and differential mode noise of the remarkable power inputs of UPS, greatly improves the signal-to-noise ratio of UPS uninterruptible power supplies transmission signal, reduces the bit error rate；It can also prevent the pollutions such as the high-frequency harmonic in power grid, high-frequency noise, surge, spike transition from entering in UPS uninterruptible power supplies, provide power grid quality, ensure UPS uninterruptible power supply normal operations.
Description
Technical field
The utility model is related to ups power technical field, more particularly to a kind of UPS with efficient power filter not between
Power-off source.
Background technology
The extensive use of present electronic product and the related converting means of electric apparatus part, but all there is electrical noise dirts
The problem of dye, the thermal noise generated when working including automatic interference source and electronic circuit itself, both electrical noises
Pollution gently then influences to load normal use, heavy then whole system is caused to be paralysed.
Although existing UPS uninterruptible power supplies input front end filter can eliminate surge, spike interference and middle low-frequency range
Differential mode noise, and the high band attenuation of only low-pass filter weakens, therefore the differential mode that cannot eliminate medium-high frequency section is made an uproar
Sound can not eliminate the noise caused by common mode interference, be easy to influence the digital circuit in power supply, logical relation is caused to malfunction,
Lead to being malfunctioned as a result, generating for mistake occur.
Invention content
The purpose of this utility model is that in view of the above-mentioned problems, between providing a kind of UPS with efficient power filter not
Power-off source.
The utility model technical solution used for the above purpose is：
A kind of UPS uninterruptible power supplies with efficient power filter comprising the power port unit that sets gradually,
RCD filter units, RC filter units, common mode capacitance unit and ups power input terminal, the power port unit and the RCD
It is connected by smoothing choke LC between filter unit, is gripped by differential mode between the RCD filter units and the RC filter units
Stream circle LD connections.
Preferably, the power port unit includes magnetic bead FB1, magnetic bead FB2, resistance RMOV and differential mode capacitor C1, institute
The zero line of one end and power supply for stating magnetic bead FB1 connects, and the other end of magnetic bead FB1 and 1 end of the smoothing choke LC connect
It connects, one end of the magnetic bead FB2 and the zero line side of power supply connect, 2 ends of the other end and smoothing choke LC of magnetic bead FB2
Connection, the resistance RMOV, differential mode capacitor C1 are in parallel with 1,2 ends of smoothing choke LC.
Preferably, the resistance RMOV is nonlinear resistance of surging.
Preferably, the RCD filter units include magnetic bead FB3, magnetic bead FB4, differential mode capacitor C4, the first RCD filters
And the 2nd RCD filter, the magnetic bead FB3, magnetic bead FB4 one end connect respectively with 3,4 ends of the smoothing choke LC, should
Magnetic bead FB3, magnetic bead FB4 the other end connect respectively with 1,2 ends of the differential mode choke coil LD, the differential mode capacitor C4 and the difference
1,2 ends of mould choke coil LD are in parallel, the first RCD filters, the 2nd RCD filters in series and with differential mode capacitor C4 simultaneously
Connection.
Preferably, the RC filter units include magnetic bead FB5, magnetic bead FB6, differential mode capacitor C7, discharge resistance R5, first
RC filters and the 2nd RC filters, the magnetic bead FB5, magnetic bead FB6 one end respectively with 3,4 ends of the differential mode choke coil LD
Connection, magnetic bead FB5, magnetic bead FB6 the other end connect with the common mode capacitance unit, the differential mode capacitor C7, discharge resistance
R5 is in parallel with the common mode capacitance unit, the first RC filters, the 2nd RC filters in series and in parallel with differential mode capacitor C7.
The beneficial effects of the utility model are：The utility model is simple and reasonable, and manufacturing cost is low, effectively inhibits UPS
The common-mode noise and differential mode noise of remarkable power input greatly improve the signal-to-noise ratio of UPS uninterruptible power supplies transmission signal, reduce
The bit error rate；It can also prevent the pollutions such as the high-frequency harmonic in power grid, high-frequency noise, surge, spike transition from entering UPS uninterruptedly electric
In source, power grid quality is provided, ensures UPS uninterruptible power supply normal operations.
Below in conjunction with the accompanying drawings with embodiment, the utility model is further illustrated.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific implementation mode
Embodiment：As shown in Figure 1, the utility model is a kind of UPS uninterruptible power supplies with efficient power filter,
Power port unit 1, RCD filter units 2, RC filter units 3, common mode capacitance unit 4 and ups power including setting gradually are defeated
Enter end 5, connected by smoothing choke 6 between the power port unit 1 and the RCD filter units 2, RCD filtering is single
It is connected by differential mode choke coil 7 between member 2 and the RC filter units 3.
In the present embodiment, the power port unit 1 includes magnetic bead FB1, magnetic bead FB2, resistance RMOV and differential mode capacitor C1,
One end of the magnetic bead FB1 and the zero line of power supply connect, and the other end of magnetic bead FB1 connects with 1 end of the smoothing choke 6
It connects, one end of the magnetic bead FB2 and the zero line side of power supply connect, the other end of magnetic bead FB2 and 2 ends of the smoothing choke 6
Connection, the resistance RMOV, differential mode capacitor C1 are in parallel with 1,2 ends of the smoothing choke 6.
Specifically, magnetic bead is equivalent to the series circuit of inductance L and resistance R compositions, and the high frequency being mainly used on power cord is made an uproar
Sound and spike interference.
In the present embodiment, the resistance RMOV is nonlinear resistance of surging.
In the present embodiment, the RCD filter units 2 include magnetic bead FB3, magnetic bead FB4, differential mode capacitor C4, the first RCD filtering
Device and the 2nd RCD filters, the magnetic bead FB3, magnetic bead FB4 one end connect respectively with 3,4 ends of the smoothing choke 6,
Magnetic bead FB3, magnetic bead FB4 the other end connect respectively with 1,2 ends of the differential mode choke coil 7, the differential mode capacitor C4 with should
1,2 ends of differential mode choke coil 7 are in parallel, the first RCD filters, the 2nd RCD filters in series and with differential mode capacitor C4 simultaneously
Connection；
Specifically, the first RCD filters, the 2nd RCD filters in series are for reducing leakage inductance spike.
In the present embodiment, the RC filter units 3 include magnetic bead FB5, magnetic bead FB6, differential mode capacitor C7, discharge resistance R5,
First RC filters and the 2nd RC filters, the magnetic bead FB5, magnetic bead FB6 one end respectively with the 3 of the differential mode choke coil 7,
4 ends connect, magnetic bead FB5, magnetic bead FB6 the other end connect with the common mode capacitance unit 4, the differential mode capacitor C7, discharge
Resistance R5 is in parallel with the common mode capacitance unit 4, the first RC filters, the 2nd RC filters in series and with differential mode capacitor C7
It is in parallel；
Specifically, the first RC filters, the 2nd RC filters in series, play the role of low-pass filter.
The utility model is simple and reasonable, and manufacturing cost is low, effectively inhibits the common-mode noise of the remarkable power inputs of UPS
And differential mode noise, the signal-to-noise ratio of UPS uninterruptible power supplies transmission signal is greatly improved, the bit error rate is reduced；It can also prevent in power grid
The pollutions such as high-frequency harmonic, high-frequency noise, surge, spike transition enter in UPS uninterruptible power supplies, provide power grid quality, protect
Demonstrate,prove UPS uninterruptible power supply normal operations.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation.Any technical person familiar with the field, it is all available in the case where not departing from technical solutions of the utility model ambit
The methods and technical content of the disclosure above makes many possible changes and modifications to technical solutions of the utility model, or is revised as
The equivalent embodiment of equivalent variations.Therefore every content without departing from technical solutions of the utility model, the shape according to the utility model
Equivalence changes made by shape, construction and principle should all be covered by the scope of protection of the utility model.
Claims (5)
1. a kind of UPS uninterruptible power supplies with efficient power filter, it is characterised in that：It includes the power end set gradually
Mouthful unit, RCD filter units, RC filter units, common mode capacitance unit and ups power input terminal, the power port unit with
It is connected by smoothing choke LC between the RCD filter units, is passed through between the RCD filter units and the RC filter units
Differential mode choke coil LD connections.
2. the UPS uninterruptible power supplies with efficient power filter according to claim 1, which is characterized in that the power supply
Port unit includes magnetic bead FB1, magnetic bead FB2, resistance RMOV and differential mode capacitor C1, the fire of one end and power supply of the magnetic bead FB1
Line end connects, and the other end of magnetic bead FB1 is connect with 1 end of the smoothing choke LC, one end of the magnetic bead FB2 and power supply
Zero line side connection, the other end of magnetic bead FB2 connect with 2 ends of smoothing choke LC, the resistance RMOV, differential mode capacitor
C1 is in parallel with 1,2 ends of smoothing choke LC.
3. the UPS uninterruptible power supplies with efficient power filter according to claim 2, which is characterized in that the resistance
RMOV is nonlinear resistance of surging.
4. the UPS uninterruptible power supplies with efficient power filter according to claim 1, which is characterized in that the RCD filters
Wave unit includes magnetic bead FB3, magnetic bead FB4, differential mode capacitor C4, the first RCD filters and the 2nd RCD filters, the magnetic bead
FB3, magnetic bead FB4 one end connect respectively with 3,4 ends of the smoothing choke LC, magnetic bead FB3, magnetic bead FB4 the other end
It being connect respectively with 1,2 ends of the differential mode choke coil LD, the differential mode capacitor C4 is in parallel with 1,2 ends of differential mode choke coil LD,
The first RCD filters, the 2nd RCD filters in series and in parallel with differential mode capacitor C4.
5. the UPS uninterruptible power supplies with efficient power filter according to claim 1, which is characterized in that the RC filters
Wave unit includes magnetic bead FB5, magnetic bead FB6, differential mode capacitor C7, discharge resistance R5, the first RC filters and the 2nd RC filters, institute
State magnetic bead FB5, one end of magnetic bead FB6 connect with 3,4 ends of the differential mode choke coil LD respectively, magnetic bead FB5, magnetic bead FB6
The other end is connect with the common mode capacitance unit, and the differential mode capacitor C7, discharge resistance R5 are in parallel with the common mode capacitance unit, institute
State the first RC filters, the 2nd RC filters in series and in parallel with differential mode capacitor C7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250724.5U CN207853473U (en) | 2018-02-12 | 2018-02-12 | A kind of UPS uninterruptible power supplies with efficient power filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820250724.5U CN207853473U (en) | 2018-02-12 | 2018-02-12 | A kind of UPS uninterruptible power supplies with efficient power filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853473U true CN207853473U (en) | 2018-09-11 |
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ID=63409701
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820250724.5U Active CN207853473U (en) | 2018-02-12 | 2018-02-12 | A kind of UPS uninterruptible power supplies with efficient power filter |
Country Status (1)
| Country | Link |
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| CN (1) | CN207853473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912384A (en) * | 2019-11-20 | 2020-03-24 | 科华恒盛股份有限公司 | LC filter and uninterrupted power source |
-
2018
- 2018-02-12 CN CN201820250724.5U patent/CN207853473U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912384A (en) * | 2019-11-20 | 2020-03-24 | 科华恒盛股份有限公司 | LC filter and uninterrupted power source |
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