CN101826747A - Communication power supply circuit - Google Patents
Communication power supply circuit Download PDFInfo
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- CN101826747A CN101826747A CN 201010131228 CN201010131228A CN101826747A CN 101826747 A CN101826747 A CN 101826747A CN 201010131228 CN201010131228 CN 201010131228 CN 201010131228 A CN201010131228 A CN 201010131228A CN 101826747 A CN101826747 A CN 101826747A
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Abstract
The invention discloses a communication power supply circuit, which comprises a rectifier module, a battery, a prior load and a non-prior load, the non-prior load is directly connected with the output end of the rectifier module, the prior load is coupled with the output end of the rectifier module sequentially through a BLVD contactor and a LLVD contactor which are connected in series, and the battery is coupled with the connecting node between the BLVD contactor and the LLVD contactor through a shunt. Since the non-prior load is directly electrified by the rectifier module not through the contactors, the power supply route is the shortest, and thereby a great deal of energy can be saved.
Description
Technical field
The present invention relates to power-supply device, particularly a kind of communication power supply circuit.
Background technology
The communication power supply load of electricity is divided into important preferential load P L and less important non-preferential load NPL under the general two-stage.By the different connected modes of electricity under the load and detection means, communication power supply is common following several topological circuit:
(1) first kind of circuit as shown in Figure 1, adopt 2 monostable contactors, LLVD contactor (Load Low Voltage Down, under the load low-voltage electric (claiming second again)) and BLVD contactor (Battery Low Voltage Down, battery low-voltage is electricity (claiming principal again) down) and 3 shunt shunt.The advantage of this circuit is that each current value is actual measurement, and is accurately stable.Its shortcoming is: 1. the current-carrying device is many, has increased loss; 2. the device of Cai Yonging is many, cost is high, and is influential to reliability again; 3. from communication power supply conventional load character, ordinary priority load P L is a underloading, non-preferential load NPL is heavy duty, and the heavily loaded loop of the daily operating mode of power supply more than 90% is: rectification module Rectifier-LLVD contactor-shunt-load NPL, and series loss is big; 4. owing to need to consider to be with fully loaded (PL+NPL) under the power down mode and to satisfy the battery charge needs, the BLVD contactor must select big capacity contactor by the two bigger value (load total current and maximum charging current), has increased cost and structure space.
(2) second kinds of circuit adopt 2 monostable contactors and 1 shunt as shown in Figure 2.The advantage of this circuit is: 1. saved the load bridging device, device is few; 2. the BLVD contactor only carries the preferential load P L of low capacity during battery charging and discharging, and optional low capacity contactor has reduced cost and structure space; 3. heavily loaded powered battery path reduces.Its major defect is: there is current-carrying device LLVD contactor in 1. heavily loaded loop, and load loss is bigger; 2. after BLVD contactor and LLVD contactor disconnected, the rectification module accessory power supply was still in work, consume battery power.
Summary of the invention
Main purpose of the present invention is exactly the deficiency at the especially above-mentioned second kind of circuit of prior art, and a kind of Remarkable Energy Saving communication power supply circuit is provided.
For achieving the above object, the present invention is by the following technical solutions:
A kind of communication power supply circuit, comprise rectification module, battery, preferential load and non-preferential load, it is characterized in that, described non-preferential load directly connects the output of described rectification module, the output of described rectification module is coupled in described preferential load successively by electric contactor under electric contactor under the series connected battery low-voltage and the load low-voltage, described battery is coupled under the described battery low-voltage under the electric contactor and described load low-voltage on the connected node of electric contactor by shunt.
Preferably, under the described battery low-voltage under electric contactor and/or the described load low-voltage electric contactor be magnetic latching contactor.
Beneficial technical effects of the present invention is:
1. compare with existing second kind of circuit; non-preferential load directly connects the output of rectification module among the present invention; non-preferential load is directly powered by rectification module and is not needed the contactor by current-carrying device LLVD; supply path is the shortest; therefore, biggest advantage of the present invention is energy-conservation, surpasses the bigger non-preferential electric path of electric current under 90% the operating mode for daily; except the loss of the circuit of necessity and relevant protection device, there is not any excess loss.
2. compare with existing second kind of circuit, be connected to the LLVD contactor among the present invention between the output of rectification module and the battery, after the LLVD contactor disconnected, rectification module was connected also with battery and will disconnects, thereby avoids continuing consume battery power.
3. compare with existing first kind of circuit, the present invention is when battery charging and discharging, and the BLVD contactor only carries the preferential load of low capacity, and BLVD contactor Capacity Selection can reduce greatly, optional low capacity contactor has reduced cost significantly and has reduced the structure installing space;
4. compare with existing first kind of circuit, communication power supply circuit of the present invention has saved the load bridging device, and the device of employing is few, and cost is low.
5. compare with existing second kind of circuit, increased the LLVD contactor on the path of preferential load by the rectification module power supply among the present invention, look that as if reliability has reduced, yet, in fact, owing to battery is arranged and connects operation, the module for power supply reliability " clamp " by the power supply reliability of battery, the failure rate of LLVD contactor can't have influence on preferential load end, only need during Calculation of Reliability to adjust from battery-end, and when powered battery, because suitable with other scheme paths, reliability is identical.
In addition, BLVD contactor and/or LLVD contactor preferably adopt magnetic latching contactor, like this, following when electricity contactor do not need powered battery, thereby can not consume the battery power of preciousness power down mode under, do not influence the charging time of main equipment.
To sum up, the present invention improves on existing second kind of circuit base, is that a kind of energy saving is outstanding, cost is low, the communication power supply circuit of good reliability.
Description of drawings
Fig. 1 is existing first kind of communication power supply circuit topological diagram;
Fig. 2 is existing second kind of communication power supply circuit topological diagram;
Fig. 3 is the topological diagram of a kind of embodiment of communication power supply circuit of the present invention.
Embodiment
In conjunction with the accompanying drawings the present invention is further described in detail by the following examples.
Please refer to Fig. 3, in one embodiment, communication power supply circuit comprises rectification module Rectifier, battery, preferential load P L, non-preferential load NPL, non-preferential load NPL is connected directly to the output of rectification module, preferential load P L is the output that is coupled to rectification module of BLVD contactor and the LLVD contactor by series connection successively, and battery is coupled on the connected node of BLVD contactor and LLVD contactor by shunt shunt1.In general, the preferential load P L of communication power supply is a underloading, but not preferential load NPL is heavy duty.
Dispose according to foregoing circuit, the preferential load NPL of rectification module-non-is the module for power supply path of heavy duty, rectification module-BLVD contactor-LLVD contactor-preferential load P L is the module for power supply path of underloading, the preferential load NPL of battery-shunt shunt1-LLVD contactor-non-is the powered battery path of heavy duty, and battery-shunt shunt1-BLVD contactor-preferential load P L is the powered battery path of underloading.In communication power supply; non-preferential load NPL module for power supply path is usually bigger above electric current under 90% the operating mode; because non-preferential load directly connects the output of rectification module; so load current does not need to pass through contactor; supply path is the shortest, and therefore, this supply path is except the loss of the circuit of necessity and relevant protection device; do not have any excess loss, thereby obtain obvious energy-saving effect.On the other hand, be connected to the LLVD contactor between the output of rectification module and the battery, after the LLVD contactor disconnects, rectification module will disconnect with being connected also of battery, thereby avoid rectification module to continue consume battery power.
Comparison with existing communication power circuit (first kind) loss evaluation:
In typical practical application, general value Δ U is pressed in the pressure drop of contactor and faying surface
4=100mV
Meter, add the 75mV shunt, amount to the additional voltage drop of 175mV, by average 200A estimation, then the excess loss power in Chong Zai module for power supply path is with load current:
ΔP＝UI＝100×10
-3×200＝35W
As can be known, the annual estimation of communication power supply circuit of the present invention save power is:
ΔP×24×365＝306.6kWh
And the above just estimated data of a communication power supply of a little base station, consider real base station that quantity is huge and the communication power supply that has big electric current, the amount of electricity saving that adds up to get off year in year out will be a very considerable numeral, in case the solution of the present invention obtains large-scale application, can obtain very significantly overall energy-saving effect.
Reliability assessment:
In an embodiment of the present invention, for the less preferential load of electric current, when module for power supply, to pass through BLVD and two contactors of LLVD, supply path has increased, seeming the power supply reliability of preferential load also can decrease, but in fact, owing to battery is arranged and connect operation, the module for power supply reliability " clamp " by the battery-end power supply reliability, therefore, the failure rate of contactor can't have influence on the reliability of preferential load end, when Calculation of Reliability, only need to adjust from battery-end, and when powered battery, because suitable with the powered battery path of second kind of known circuit, reliability is identical.
In a kind of preferred embodiment, at least one adopts magnetic latching contactor in two contactors, and like this, during following electricity, contactor does not need battery to continue power supply, can not consume the battery power of preciousness under the power down mode, does not influence the charging time of main equipment.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (2)
1. communication power supply circuit, comprise rectification module, battery, preferential load and non-preferential load, it is characterized in that, described non-preferential load directly connects the output of described rectification module, the output of described rectification module is coupled in described preferential load successively by electric contactor under electric contactor under the series connected battery low-voltage and the load low-voltage, described battery is coupled under the described battery low-voltage under the electric contactor and described load low-voltage on the connected node of electric contactor by shunt.
2. communication power supply circuit as claimed in claim 1 is characterized in that, under the described battery low-voltage under electric contactor and/or the described load low-voltage electric contactor be magnetic latching contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101312286A CN101826747B (en) | 2010-03-19 | 2010-03-19 | Communication power supply circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101312286A CN101826747B (en) | 2010-03-19 | 2010-03-19 | Communication power supply circuit |
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| Publication Number | Publication Date |
|---|---|
| CN101826747A true CN101826747A (en) | 2010-09-08 |
| CN101826747B CN101826747B (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101312286A Active CN101826747B (en) | 2010-03-19 | 2010-03-19 | Communication power supply circuit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013174316A1 (en) * | 2012-10-08 | 2013-11-28 | 中兴通讯股份有限公司 | Power-off circuit, direct current combination power supply system and power-off control method |
| CN103972979A (en) * | 2014-05-21 | 2014-08-06 | 华为技术有限公司 | Communication power source circuit |
| CN104917287A (en) * | 2015-07-02 | 2015-09-16 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | PDU power control system |
| CN112644285A (en) * | 2020-11-09 | 2021-04-13 | 湖南中车智行科技有限公司 | Intelligent rail high-voltage power supply control system and method thereof |
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| JPH06261463A (en) * | 1993-03-04 | 1994-09-16 | Mitsubishi Electric Corp | Electronic controller for vehicle |
| US5561363A (en) * | 1994-04-22 | 1996-10-01 | Hitachi, Ltd. | Generation controller for a vehicle |
| CN1967967A (en) * | 2005-10-19 | 2007-05-23 | C.R.F.阿西安尼顾问公司 | A system for managing the supply of electrical energy in a motor vehicle |
| CN2930061Y (en) * | 2006-07-20 | 2007-08-01 | 青岛经济技术开发区创统科技发展有限公司 | UPS for industrial driving |
| JP2008125349A (en) * | 2002-06-20 | 2008-05-29 | Ricoh Co Ltd | Power supply device and power supply feeding method |
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2010
- 2010-03-19 CN CN2010101312286A patent/CN101826747B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06261463A (en) * | 1993-03-04 | 1994-09-16 | Mitsubishi Electric Corp | Electronic controller for vehicle |
| US5561363A (en) * | 1994-04-22 | 1996-10-01 | Hitachi, Ltd. | Generation controller for a vehicle |
| JP2008125349A (en) * | 2002-06-20 | 2008-05-29 | Ricoh Co Ltd | Power supply device and power supply feeding method |
| CN1967967A (en) * | 2005-10-19 | 2007-05-23 | C.R.F.阿西安尼顾问公司 | A system for managing the supply of electrical energy in a motor vehicle |
| CN2930061Y (en) * | 2006-07-20 | 2007-08-01 | 青岛经济技术开发区创统科技发展有限公司 | UPS for industrial driving |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013174316A1 (en) * | 2012-10-08 | 2013-11-28 | 中兴通讯股份有限公司 | Power-off circuit, direct current combination power supply system and power-off control method |
| CN103715750A (en) * | 2012-10-08 | 2014-04-09 | 中兴通讯股份有限公司 | Power-off circuit, direct-current combination power supply system and power-off control method |
| CN103972979A (en) * | 2014-05-21 | 2014-08-06 | 华为技术有限公司 | Communication power source circuit |
| CN104917287A (en) * | 2015-07-02 | 2015-09-16 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | PDU power control system |
| CN104917287B (en) * | 2015-07-02 | 2017-08-25 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of PDU power control systems |
| CN112644285A (en) * | 2020-11-09 | 2021-04-13 | 湖南中车智行科技有限公司 | Intelligent rail high-voltage power supply control system and method thereof |
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| Publication number | Publication date |
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| CN101826747B (en) | 2012-09-19 |
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Address after: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee after: Vitamin Technology Co., Ltd. Address before: 518057 Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Branch Road, No. Patentee before: Aimosheng Network Energy Source Co., Ltd. |