CN203261105U - Power system of PRU communication base station - Google Patents
Power system of PRU communication base station Download PDFInfo
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- CN203261105U CN203261105U CN2013203138739U CN201320313873U CN203261105U CN 203261105 U CN203261105 U CN 203261105U CN 2013203138739 U CN2013203138739 U CN 2013203138739U CN 201320313873 U CN201320313873 U CN 201320313873U CN 203261105 U CN203261105 U CN 203261105U
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Abstract
The utility model relates to a power system of a PRU communication base station, and solves the technical problems of high cost, high loss of electric energy, unstable power supply, short service life of a battery, inconvenient maintenance, and tedious field installation of a power system of a conventional PRU communication base station. The power system comprises a power module, a main control unit, a battery, a voltage transformation unit, and a relay. The power module comprises a charging unit and an alternating-current output unit. The charging unit, the battery, the voltage transformation unit and a relay are sequentially connected. The main control unit is connected with the voltage transformation unit and the relay. The power system can be widely used for power supplies of communication base stations.
Description
Technical field
The utility model relates to a kind of power-supply system, especially relates to a kind of RRU communication base station and electric power system.
Background technology
In communication base station was built, distributed base station (BBU+RRU) construction mode is low with its peculiar construction cost, networking mounting means fast and flexible, maintenance cost are low etc., and advantage had obtained using more and more widely.The RRU base station power is the key device in distributed base station (BBU+RRU) construction mode, and its structure mainly contains three kinds:
The first RRU base station power, utilize on the one hand the Switching Power Supply commutation technique, with alternating current 220V(or 380V) through after the current rectifying and wave filtering circuit processing, become the direct current about 300V, in process PFC(power factor correction) proofread and correct, switch transformer, the circuit such as switching tube, through PWM(pulse width modulation) the voltage-dropping type DC/DC converter that forms of the Switching Power Supply of technical finesse, output direct current 48V behind output filter circuit, simultaneously through voltage stabilizing current limliting and PFC(power factor correction) and PWM(pulse width modulation) FEEDBACK CONTROL, power factor of final formation is higher, the Switching Power Supply of output voltage stabilization.On the other hand, rechargeable battery set generally adopts jumbo 2V rechargeable battery (24) or 12V rechargeable battery (4) to be connected into the battery pack access of 48V, and the direct current 48V of simultaneously rectification module output directly gives batteries charging.During use, as alternating current 220V(or 380V) have a power failure after, direct current 48V battery pack is directly powered to power consumption equipment.
Adopt this RRU base station power investment very large, again because battery pack is by the series system access, wherein battery performance decline is arranged, will affecting on the same group, other battery performance descends.The whole Battery pack life-span is short, particularly in the situation that ambient temperature is difficult to guarantee, because of the difference of battery individuality, will cause the whole Battery pack life-span further to shorten.
The second RRU base station power, 48V direct current in the large-capacity battery pack machine room will be arranged, pass through switch transformer, the circuit such as switching tube, through PWM(pulse width modulation) high voltage direct current that becomes 230V-380V after step-up DC/the DC converter is processed that forms of the Switching Power Supply of technical finesse, the transmission of composite cable or cable by longer distance, at the power consumption equipment end, carry out again the voltage reduction, namely pass through switch transformer, the circuit such as switching tube are through PWM(pulse width modulation) the voltage-dropping type DC/DC converter that forms of the Switching Power Supply of technical finesse becomes direct current 48V to export to power consumption equipment voltage transitions.As long as the input of stable 48V direct current is arranged, just can provide stable 48V direct current to power consumption equipment, do not exchanged the impact of power failure.
Adopt this RRU base station power power supply investment larger, need lay in addition optical cable or transmit cable, operation inconvenience, and the electric energy effective rate of utilization is not high, and a part of electric energy loss on the circuit that electric energy transmits, is unfavorable for energy-saving and emission-reduction.
The third RRU base station power directly utilizes the alternating current construction, with the direct incoming transport power supply of power consumption equipment (carry Switching Power Supply in the equipment and convert interchange to direct current 48V).Adopt this RRU base station power power supply, power supply is unstable, in case run into power failure, equipment affects user's use with regard to cisco unity malfunction very much.
Summary of the invention
The utility model is exactly in order to solve the problems of the technologies described above, and provides that a kind of cost is low, electric energy loss is low, power supply is stable, battery life is longer, the maintenance is simple and convenient, the RRU communication base station and electric power system of on-the-spot convenient and flexible installation.
The RRU communication base station and electric power system that the utility model provides, it comprises power module, main control unit, battery pack, voltage transformation module and relay, power module comprises charhing unit and exchanges output unit, charhing unit, battery pack, voltage transformation module and relay are linked in sequence successively, and main control unit is connected with voltage transformation module, relay.
Preferably, voltage transformation module is DC/DC boosting inverter unit, and battery pack is the 12V battery pack.
Preferably, voltage transformation module is the DC/AC inversion unit, and battery pack is the 12V battery pack.
Preferably, battery pack is the 12V battery pack, and voltage transformation module comprises DC/DC boosting inverter unit, DC/AC inversion unit, and relay comprises the first relay, the second relay; A road of 12V battery pack outputs to the DC/AC inversion unit, and another road outputs to DC/DC boosting inverter unit, and DC/DC boosting inverter unit is connected with the first relay, and the DC/AC inversion unit is connected with the second relay; Main control unit is connected with DC/AC inversion unit, the second relay, DC/DC boosting inverter unit, the first relay.
Preferably, also comprise switch power module, battery pack is the 12V battery pack, and voltage transformation module is DC/DC boosting inverter unit, exchanges output unit and is connected with switch power module.
The beneficial effects of the utility model are, adopt the battery connected mode (capacity can be expanded by cell parallel) of 12V cell parallel, and a battery performance descends, and can not have influence on the normal operation of other batteries in parallel connection.Adopt and connect electric principle nearby, the transmission loss that can not produce electric energy, conversion efficiency is higher, can work normally when exchanging power failure by assurance equipment simultaneously.The utility model investment is little, and cost is low.
The further feature of the utility model will in the description of following embodiment, clearly be put down in writing.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the first embodiment;
Fig. 3 is the structural representation of the second embodiment;
Fig. 4 is the structural representation of the 3rd embodiment;
Fig. 5 is the structural representation of the 4th embodiment.
The reference numeral explanation:
1. power module; 2. charhing unit; 3. battery pack; 4. main control unit; 5. voltage transformation module; 6. relay; 7.12V battery pack; 8.DC/DC boosting inverter unit; 9. the first relay; 10.DC/AC inversion unit; 11. the second relay; 12. direct current power device; 13. interchange power device; 14. interchange output unit; 15. switch power module.
Embodiment
Referring to accompanying drawing, with specific embodiment the utility model is described in further detail.
The first embodiment
As shown in Figure 2, the utility model comprises power module 1, main control unit 4,12V battery pack 7, DC/DC boosting inverter unit 8 and the first relay 9, power module 1 comprises charhing unit 2 and exchanges output unit 14 that charhing unit 2,12V battery pack 7, DC/DC boosting inverter unit 8 and the first relay 9 are linked in sequence successively.Main control unit 4 is connected with DC/DC boosting inverter unit 8, the first relay 9.9 on-off actions of the first relay, its output is connected with direct current power device 12.Exchange output unit 14 and be connected with interchange power device 13, exchange output unit 14 and be output as alternating current.
DC/DC boosting inverter unit 8 can convert the 12V direct current of 12V battery pack 7 to the 48V direct current.
Main control unit 4 comprises central processing unit and voltage detecting circuit, can also be provided with delay circuit.
The below is described the course of work of whole device:
External ac power source is charged by 2 pairs of 12V battery pack 7 of charhing unit, main control unit 4 sends instruction and makes its work to DC/DC boosting inverter unit 8, DC/DC boosting inverter unit 8 arrives 48V voltage with the 12V boost in voltage of 12V battery pack 7, the first relay 9 is connected under the control of main control unit 4,48V voltage sends direct current power device 12 to by the first relay 9, and direct current power device 12 is started working.
Main control unit 4 can send instruction to the first relay 9 after after a while under the effect of delay circuit, control shutoff or the conducting of the first relay 9.Delay circuit also can replace with timing circuit.
Output AC is electric for exchanging power device 13 all the time to exchange output unit 14.
The second embodiment
As shown in Figure 3, the utility model comprises power module 1, main control unit 4,12V battery pack 7, DC/AC inversion unit 10 and the second relay 11, power module 1 comprises charhing unit 2 and exchanges output unit 14 that charhing unit 2,12V battery pack 7, DC/AC inversion unit 10 and the second relay 11 are linked in sequence successively.Main control unit 4 is connected with DC/AC inversion unit 10, the second relay 11.11 on-off actions of the second relay, its output is connected with interchange power device 13.Exchange output unit 14 and be connected with interchange power device 13, exchange output unit 14 and be output as alternating current.
DC/AC inversion unit 10 can convert the 12V direct current of 12V battery pack 7 to the 220V alternating current.
Main control unit 4 comprises central processing unit, can also be provided with voltage detecting circuit, delay circuit.
The below is described the course of work of whole device:
Under the normal condition, external ac power source is charged by 2 pairs of 12V battery pack 7 of charhing unit, exchanges output unit 14 output ACs electricity (AC220V) for exchanging power device 13.
When the voltage detecting circuit of main control unit 4 detects external power source and has a power failure or when exchanging output unit 14 and not exporting, main control unit 4 sends instruction and makes its work to DC/AC inversion unit 10, DC/AC inversion unit 10 is reverse into the 220V alternating current with the 12V direct voltage of 12V battery pack 7, the second relay 11 is connected under the control of main control unit 4, the 220V alternating current sends to through the second relay 11 and exchanges power device 13, exchanges power device 13 and starts working.Main control unit 4 can send instruction to the second relay 11 after after a while under the effect of delay circuit, control shutoff or the conducting of the second relay 11.Delay circuit also can replace with timing circuit.
The 3rd embodiment
As shown in Figure 4, the utility model comprises power module 1, main control unit 4,12V battery pack 7, DC/DC boosting inverter unit 8, DC/AC inversion unit 10, the first relay 9 and the second relay 11, power module 1 comprises charhing unit 2 and exchanges output unit 14 that charhing unit 2 is connected with 12V battery pack 7.A road of 12V battery pack 7 outputs to DC/AC inversion unit 10, and another road outputs to DC/DC boosting inverter unit 8.DC/DC boosting inverter unit 8, the first relay 9 and direct current power device 12 are linked in sequence successively, DC/AC inversion unit 10, the second relay 11 and exchange power device and once be linked in sequence.Main control unit 4 is connected with DC/AC inversion unit 10, the second relay 11, DC/DC boosting inverter unit 8, the first relay 9.The first relay 9,11 on-off actions of the second relay, its output are connected with direct current power device 12, interchange power device 13 respectively.Exchange output unit 14 and be connected with interchange power device 13, exchange output unit 14 and be output as alternating current.
DC/AC inversion unit 10 can convert the 12V direct current of 12V battery pack 7 to the 220V alternating current.
Main control unit 4 comprises central processing unit, can also be provided with voltage detecting circuit, delay circuit.
The below is described the course of work of whole device:
Under the normal condition, external ac power source is charged by 2 pairs of 12V battery pack 7 of charhing unit, exchanges output unit 14 output ACs electricity (AC220V) for exchanging power device 13.
When the voltage detecting circuit of main control unit 4 detects external power source and has a power failure or when exchanging output unit 14 and not exporting, main control unit 4 adopts and exchanges the output that detects time-delay and battery voltage detection mode control relay.Main control unit 4 sends instruction and makes its work to DC/AC inversion unit 10, DC/AC inversion unit 10 is reverse into the 220V alternating current with the 12V direct voltage of 12V battery pack 7, the second relay 11 is connected under the control of main control unit 4, the 220V alternating current sends to through the second relay 11 and exchanges power device 13, exchanges power device 13 and starts working.
Main control unit 4 sends instruction and makes its work to DC/DC boosting inverter unit 8, DC/DC boosting inverter unit 8 arrives 48V voltage with the 12V boost in voltage of 12V battery pack 7, the first relay 9 is connected under the control of main control unit 4,48V voltage sends direct current power device 12 to by the first relay 9, and direct current power device 12 is started working.
Main control unit 4 can send instruction to the first relay 9 or the second relay 11 after after a while under the effect of delay circuit, control the first relay 9 or 11 shutoff or the conductings of the second relay.Delay circuit also can replace with timing circuit.
The 4th embodiment
As shown in Figure 5, the utility model comprises power module 1, main control unit 4,12V battery pack 7, DC/DC boosting inverter unit 8 and the first relay 9, power module 1 comprises charhing unit 2 and exchanges output unit 14 that charhing unit 2,12V battery pack 7, DC/DC boosting inverter unit 8 and the first relay 9 are linked in sequence successively.Main control unit 4 is connected with DC/DC boosting inverter unit 8, the first relay 9.9 on-off actions of the first relay, its output is connected with direct current power device 12.Exchange output unit 14 and be connected with switch power module 15, switch power module 15 is connected with direct current power device 12, and switch power module 15 is output as the 48V direct current.
DC/DC boosting inverter unit 8 can convert the 12V direct current of 12V battery pack 7 to the 48V direct current.
Main control unit 4 comprises central processing unit, can also be provided with voltage detecting circuit, delay circuit.
The below is described the course of work of whole device:
Under the normal condition, external ac power source is charged by 2 pairs of 12V battery pack 7 of charhing unit, and the alternating current that exchanges output unit 14 outputs is supplied with switch power module 15, switch module output 48V direct current, and the 48V direct current is supplied with direct current power device 12 and is used.
External ac power source is charged by 2 pairs of 12V battery pack 7 of charhing unit.
When the voltage detecting circuit of main control unit 4 detects external power source and has a power failure or switch power module 15 when not exporting, main control unit 4 sends instruction and makes its work to DC/DC boosting inverter unit 8, DC/DC boosting inverter unit 8 arrives 48V voltage with the 12V boost in voltage of 12V battery pack 7, the first relay 9 is connected under the control of main control unit 4,48V voltage sends direct current power device 12 to by the first relay 9, and direct current power device 12 is started working.
Main control unit 4 can send instruction to the first relay 9 after after a while under the effect of delay circuit, control shutoff or the conducting of the first relay 9.Delay circuit also can replace with timing circuit.
Need to prove, more than 12V battery pack 7 among each embodiment also can be that 12V rechargeable battery more than three or three composes in parallel.The first relay or the second relay also can be for a plurality of.Undoubtedly, replace battery pack 7 to realize that function of the present utility model also is fine with a 12V rechargeable battery.
The above only to preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.Every in claim limited range of the present utility model, any modification of making, be equal to replacement, improvement etc., all should be within protection range of the present utility model.
Claims (6)
1. RRU communication base station and electric power system, it is characterized in that, comprise power module, main control unit, battery pack, voltage transformation module and relay, described power module comprises charhing unit and exchanges output unit, described charhing unit, battery pack, voltage transformation module and described relay are linked in sequence successively, and described main control unit is connected with described voltage transformation module, relay.
2. RRU communication base station and electric power according to claim 1 system is characterized in that described voltage transformation module is DC/DC boosting inverter unit, and described battery pack is the 12V battery pack.
3. RRU communication base station and electric power according to claim 1 system is characterized in that described voltage transformation module is the DC/AC inversion unit, and described battery pack is the 12V battery pack.
4. RRU communication base station and electric power according to claim 1 system, it is characterized in that, described battery pack is the 12V battery pack, and described voltage transformation module comprises DC/DC boosting inverter unit, DC/AC inversion unit, and described relay comprises the first relay, the second relay; A road of described 12V battery pack outputs to described DC/AC inversion unit, and another road outputs to described DC/DC boosting inverter unit, and described DC/DC boosting inverter unit is connected with described the first relay, and described DC/AC inversion unit is connected with described the second relay; Described main control unit is connected with described DC/AC inversion unit, the second relay, DC/DC boosting inverter unit, the first relay.
5. RRU communication base station and electric power according to claim 1 system, it is characterized in that, also comprise switch power module, described battery pack is the 12V battery pack, described voltage transformation module is DC/DC boosting inverter unit, and described interchange output unit is connected with described switch power module.
6. according to claim 2,3,4 or 5 described RRU communication base station and electric power systems, it is characterized in that described 12V battery pack is composed in parallel by two above 12V rechargeable batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203138739U CN203261105U (en) | 2013-05-31 | 2013-05-31 | Power system of PRU communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203138739U CN203261105U (en) | 2013-05-31 | 2013-05-31 | Power system of PRU communication base station |
Publications (1)
| Publication Number | Publication Date |
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| CN203261105U true CN203261105U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203138739U Expired - Fee Related CN203261105U (en) | 2013-05-31 | 2013-05-31 | Power system of PRU communication base station |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3043622A1 (en) * | 2015-01-04 | 2016-07-13 | Huawei Technologies Co., Ltd. | Base station |
| CN105826978A (en) * | 2016-04-25 | 2016-08-03 | 国网山东省电力公司信息通信公司 | Portable power communication charging and discharging backup storage battery pack power supply device |
| WO2016197949A1 (en) * | 2015-06-11 | 2016-12-15 | 苏州宝时得电动工具有限公司 | Power transmission apparatus and control method therefor, and power supply system |
| CN106253286A (en) * | 2015-06-11 | 2016-12-21 | 苏州宝时得电动工具有限公司 | Power transfer and control method, electric power system |
| US10749430B2 (en) | 2015-03-13 | 2020-08-18 | Positec Power Tools (Suzhou) Co., Ltd. | Power transmission apparatus and control method therefor, and power supply system |
| CN111725885A (en) * | 2020-07-22 | 2020-09-29 | 辽宁凯信工业技术工程有限公司 | Intelligent power-switching and 5G base station standby power supply system |
-
2013
- 2013-05-31 CN CN2013203138739U patent/CN203261105U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3043622A1 (en) * | 2015-01-04 | 2016-07-13 | Huawei Technologies Co., Ltd. | Base station |
| US9941917B2 (en) | 2015-01-04 | 2018-04-10 | Huawei Technologies Co., Ltd. | Base station |
| EP3886531A1 (en) * | 2015-01-04 | 2021-09-29 | Huawei Technologies Co., Ltd. | Base station |
| US10749430B2 (en) | 2015-03-13 | 2020-08-18 | Positec Power Tools (Suzhou) Co., Ltd. | Power transmission apparatus and control method therefor, and power supply system |
| US11601002B2 (en) | 2015-03-13 | 2023-03-07 | Positec Power Tools (Suzhou) Co., Ltd. | Electrical energy transmission apparatus, method for controlling same, and power supply system |
| WO2016197949A1 (en) * | 2015-06-11 | 2016-12-15 | 苏州宝时得电动工具有限公司 | Power transmission apparatus and control method therefor, and power supply system |
| CN106253286A (en) * | 2015-06-11 | 2016-12-21 | 苏州宝时得电动工具有限公司 | Power transfer and control method, electric power system |
| CN115663817A (en) * | 2015-06-11 | 2023-01-31 | 苏州宝时得电动工具有限公司 | Electric energy transmission device, control method thereof and power supply system |
| CN105826978A (en) * | 2016-04-25 | 2016-08-03 | 国网山东省电力公司信息通信公司 | Portable power communication charging and discharging backup storage battery pack power supply device |
| CN111725885A (en) * | 2020-07-22 | 2020-09-29 | 辽宁凯信工业技术工程有限公司 | Intelligent power-switching and 5G base station standby power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131030 Termination date: 20160531 |