CN203851047U - Minisize intelligent AC-DC composite power supply for distributed base station - Google Patents
Minisize intelligent AC-DC composite power supply for distributed base station Download PDFInfo
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- CN203851047U CN203851047U CN201420196149.7U CN201420196149U CN203851047U CN 203851047 U CN203851047 U CN 203851047U CN 201420196149 U CN201420196149 U CN 201420196149U CN 203851047 U CN203851047 U CN 203851047U
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- 239000002131 composite material Substances 0.000 title claims abstract 8
- 238000012544 monitoring process Methods 0.000 claims description 23
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 238000010295 mobile communication Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model discloses a minisize intelligent AC-DC composite power supply for a distributed base station, and relates to the mobile communication base station power supply technical field, and aims to provide a minisize intelligent AC-DC composite power supply for a communication base station; the minisize intelligent AC-DC composite power supply comprises an AC/DC rectifier module, a DC/AC inversion module, an AC current input end, an AC current output end, a DC current output end and a storage battery; the AC current input end is coupled to the input end of the AC/DC rectifier module; the output end of the AC/DC rectifier module is coupled to the DC current output end; the output end of the AC/DC rectifier module is coupled to a charge input end of the storage battery; the output end of the AC/DC rectifier module is coupled to an input end of the DC/AC inversion module; an output end of the DC/AC inversion module is coupled to the AC current output end; an output end of the storage battery is coupled to the input end of the DC/AC inversion module and the DC current output end; the AC current input end is coupled to the AC current output end through an AC bypass switch.
Description
Technical Field
The utility model relates to a mobile communication basic station power supply technical field.
Background
The existing 2G/3G mobile communication base station equipment is generally powered by-48V direct current, only an alternating-current to direct-current high-frequency switching power supply needs to be arranged in a base station to rectify 220V alternating current into-48V direct current, and for individual equipment needing alternating current, a mode of directly connecting with commercial power or UPS for power supply is adopted, as shown in fig. 1.
Because the 4G mobile communication base station adopts a distributed networking structure, base station equipment is generally installed in narrow and small spaces such as outdoor lamp posts, building shafts, staircases and the like, the power supply of the equipment with low power consumption (< 200W) has the requirements of-48 VDC and-200 VAC, and the original high-frequency switching power supply and UPS cannot meet the power supply requirement of the 4G distributed base station due to large volume and single power supply system.
SUMMERY OF THE UTILITY MODEL
The invention of the utility model aims to: to the problem that above-mentioned existence, provide a miniature intelligent alternating current-direct current hybrid power supply.
The utility model discloses a technical scheme be like: the device comprises an AC/DC rectification module, a DC/AC inversion module, an alternating current input end, an alternating current output end, a direct current output end and a storage battery; wherein,
the alternating current input end is coupled with the input end of the AC/DC rectifying module; the output end of the AC/DC rectifying module is coupled with the direct current output end; the output end of the AC/DC rectifying module is also coupled with the charging input end of the storage battery; the output end of the AC/DC rectifying module is also coupled with the input end of the DC/AC inverting module; the output end of the DC/AC inversion module is coupled with the alternating current output end;
the output end of the storage battery is coupled with the input end of the DC/AC inversion module and is also coupled with the direct current output end;
the ac input is also coupled to the ac output through an ac bypass switch.
Further, the monitoring circuit is also included;
the monitoring circuit is connected with the AC/DC rectifying module through a control signal; the monitoring circuit is also connected with the DC/AC inversion module through a control signal.
Further, the storage battery is a lead-acid battery or a lithium iron battery.
Further, the lithium iron battery is in a 15-string battery mode or a 16-string battery mode.
Further, the device also comprises a battery charging mode knob and a battery temperature sampling circuit; the battery charging mode knob and the battery temperature sampling circuit are both coupled with the monitoring circuit; the monitoring circuit is used for monitoring the output voltage and current of the AC/DC rectifying module and controlling the output voltage and current of the AC/DC rectifying module according to the input signal of the battery charging mode knob.
Further, a lightning arrester is connected between the alternating current input end and the ground of the AC/DC rectification module.
Further, the alternating current input end is used for receiving 220V alternating current; the alternating current output end is used for outputting 220V alternating current; the direct current output end is used for outputting-48V direct current.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
(1) the utility model discloses can set up to "commercial power main supply" and "equipment main supply" two kinds of modes through exchanging bypass switch, the time that two kinds of modes switched each other is less than 20 ms.
(2) The utility model discloses can set up to "lead acid battery backup" mode and "lithium iron battery backup" mode by the battery charging mode knob, wherein lithium iron battery backup mode can also be subdivided into "15 cluster batteries" and "16 cluster batteries" mode. Ensuring that the product can be adapted to various storage battery types.
(4) The utility model discloses the AC/DC rectifier module and the DC/AC contravariant module of chooseing for use support the hot plug, and both can mix and insert, satisfy the power supply demand of different base station equipment.
(5) The utility model discloses a modular design can be with rectifier module, contravariant module, charging unit, the integrated frame in a monitoring unit, also can independently install separately (through the flexible cable connection of standard), adapts to the installation environment of multiple complicacy.
To sum up, the utility model discloses the adaptation that can be fine now 4G mobile base station's power supply needs.
Drawings
Fig. 1 is a schematic diagram of a prior art power supply.
Fig. 2 is a schematic diagram of the power supply of the present invention.
Fig. 3 is a schematic circuit block diagram of the present invention.
Fig. 4 is a schematic circuit diagram of an embodiment of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 2, the utility model provides a miniature alternating current-direct current intelligent combined power supply can all set up the power supply for 4G mobile base station's direct current equipment and interchange simultaneously.
As shown in fig. 3, an embodiment of the present invention includes an AC/DC rectifying module, a DC/AC inverting module, an AC input terminal, an AC output terminal, a DC output terminal, and a storage battery; the alternating current input end is coupled with the input end of the AC/DC rectifying module; the output end of the AC/DC rectifying module is coupled with the direct current output end; the output end of the AC/DC rectifying module is also coupled with the charging input end of the storage battery; the output end of the AC/DC rectifying module is also coupled with the input end of the DC/AC inverting module; the output end of the DC/AC inversion module is coupled with the alternating current output end; the output end of the storage battery is coupled with the input end of the DC/AC inversion module and is also coupled with the direct current output end; the ac input is also coupled to the ac output through an ac bypass switch.
The embodiment has two working modes of normal operation and emergency operation.
The normal operation condition is divided into two modes of main power supply and equipment initiative.
In a mains supply mode, when input alternating current (usually mains supply) is normal (220V/7A), the mains supply is converted into direct current of-48V system (nominal value is-48V, but actual voltage may be-40 to-58V) through an AC/DC rectification unit, power is supplied to base station direct current equipment through a direct current output end, a storage battery pack is charged, on the other hand, the mains supply is also output to an alternating current output end through an alternating current bypass switch to supply power to the base station alternating current equipment, a DC/AC inversion module synchronously stands for standby, and basically has no power consumption. This state occupies a major operating time.
In the main supply mode of the equipment, when the input alternating current is not commercial power but 220V alternating current output by other alternating current power generation equipment, the alternating current is converted into direct current of a-48V system through the AC/DC rectifying unit, the direct current output end supplies power to the base station direct current equipment and charges the storage battery pack, on the other hand, the alternating current bypass switch is disconnected, the alternating current outputs a DC/AC inversion module through the AC/DC rectifying unit, and the DC/AC inversion module outputs 220V alternating current to the alternating current output end so as to supply power to the base station alternating current equipment. This kind of state is applicable to when the alternating current quality of input is not good, process the utility model discloses an alternating current quality after the conversion of DC/AC contravariant module is better than the alternating current of input.
Under the condition of emergency operation, when the input alternating current fails, the output of the storage battery supplies power to the alternating current equipment of the base station through the AC/DC inversion module, and meanwhile, the output of the storage battery supplies power to the direct current equipment of the base station through the direct current output end. The power supply time is determined by the capacity of the storage battery pack. When the input alternating current returns to normal, the power supply state under normal conditions should be automatically switched to.
As shown in fig. 4, another embodiment of the present invention is to add a monitoring circuit on the basis of the foregoing embodiment; the monitoring circuit is connected with the AC/DC rectifying module through a control signal; the monitoring circuit is also connected with the DC/AC inversion module through a control signal.
In practical use, the storage battery is a lead-acid battery or a lithium iron battery; the lithium iron battery can be further divided into a 15-string battery mode or a 16-string battery mode.
The embodiment is also provided with a battery charging mode knob and a battery temperature sampling circuit; the battery charging mode knob and the battery temperature sampling circuit are both coupled with the monitoring circuit. The monitoring circuit monitors the temperature of the battery through the battery temperature sampling circuit.
The battery charging mode knob can select the type of the storage battery, such as a lead-acid battery, a lithium iron battery 15-string battery mode or a lithium iron battery 16-string battery mode.
The monitoring circuit is used for monitoring the output voltage and current of the AC/DC rectifying module and controlling the output voltage and current of the AC/DC rectifying module according to the input signal of the battery charging mode knob. For example, when the battery charge mode knob is toggled to the lead-acid battery, the monitoring circuit controls the AC/DC rectifier module to output a voltage of-53.5V. When the battery charging mode knob is dialed to the lithium iron battery 15 series battery pack, the monitoring circuit controls the output voltage of the AC/DC rectifying module to be-52V; when the battery charging mode knob is dialed to the lithium iron battery 16 series battery pack, the monitoring circuit controls the output voltage of the AC/DC rectifying module to be-55V. Ensure like this the utility model discloses can adapt to the battery charging needs of difference.
In order to prevent lightning surges, in other embodiments, a lightning arrester is also connected between the alternating current input terminal and the ground of the AC/DC rectification module.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The miniature intelligent alternating current-direct current composite power supply for the distributed base station is characterized by comprising an AC/DC rectification module, a DC/AC inversion module, an alternating current input end, an alternating current output end, a direct current output end and a storage battery; wherein,
the alternating current input end is coupled with the input end of the AC/DC rectifying module; the output end of the AC/DC rectifying module is coupled with the direct current output end; the output end of the AC/DC rectifying module is also coupled with the charging input end of the storage battery; the output end of the AC/DC rectifying module is also coupled with the input end of the DC/AC inverting module; the output end of the DC/AC inversion module is coupled with the alternating current output end;
the output end of the storage battery is coupled with the input end of the DC/AC inversion module and is also coupled with the direct current output end;
the ac input is also coupled to the ac output through an ac bypass switch.
2. The miniature intelligent alternating current-direct current composite power supply for the distributed base station as claimed in claim 1, further comprising a monitoring circuit;
the monitoring circuit is connected with the AC/DC rectifying module through a control signal; the monitoring circuit is also connected with the DC/AC inversion module through a control signal.
3. The miniature intelligent alternating current-direct current composite power supply for the distributed base station as claimed in claim 2, wherein the storage battery is a lead-acid battery or a lithium iron battery.
4. The miniature intelligent alternating current-direct current composite power supply for the distributed base station as claimed in claim 3, wherein the lithium iron battery is in a 15-string battery mode or a 16-string battery mode.
5. The distributed intelligent miniature alternating current-direct current hybrid power supply for the base station as claimed in claim 3 or 4, further comprising a battery charging mode knob and a battery temperature sampling circuit;
the battery charging mode knob and the battery temperature sampling circuit are both coupled with the monitoring circuit;
the monitoring circuit is used for monitoring the output voltage and current of the AC/DC rectifying module and controlling the output voltage and current of the AC/DC rectifying module according to the output signal of the battery charging mode knob.
6. The miniature intelligent alternating current-direct current hybrid power supply for the distributed base station as claimed in claim 1, wherein a lightning arrester is further connected between the alternating current input end and the ground of the AC/DC rectification module.
7. The miniature intelligent AC/DC hybrid power supply for the distributed base station as set forth in claim 1, wherein the AC input terminal is configured to receive 220V AC; the alternating current output end is used for outputting 220V alternating current; the direct current output end is used for outputting-48V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196149.7U CN203851047U (en) | 2014-04-22 | 2014-04-22 | Minisize intelligent AC-DC composite power supply for distributed base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420196149.7U CN203851047U (en) | 2014-04-22 | 2014-04-22 | Minisize intelligent AC-DC composite power supply for distributed base station |
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| Publication Number | Publication Date |
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| CN203851047U true CN203851047U (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420196149.7U Expired - Fee Related CN203851047U (en) | 2014-04-22 | 2014-04-22 | Minisize intelligent AC-DC composite power supply for distributed base station |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465258A (en) * | 2017-09-08 | 2017-12-12 | 中国联合网络通信集团有限公司 | A kind of electric power system and method for IDC computer rooms |
| CN107947344A (en) * | 2017-11-30 | 2018-04-20 | 苏州苏驼通信科技股份有限公司 | A kind of emergent combined type backup power supply equipment integrating for communication base station |
| CN116247795A (en) * | 2019-12-19 | 2023-06-09 | 施耐德电气It公司 | Power system, non-transitory computer readable medium and method |
-
2014
- 2014-04-22 CN CN201420196149.7U patent/CN203851047U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465258A (en) * | 2017-09-08 | 2017-12-12 | 中国联合网络通信集团有限公司 | A kind of electric power system and method for IDC computer rooms |
| CN107947344A (en) * | 2017-11-30 | 2018-04-20 | 苏州苏驼通信科技股份有限公司 | A kind of emergent combined type backup power supply equipment integrating for communication base station |
| CN116247795A (en) * | 2019-12-19 | 2023-06-09 | 施耐德电气It公司 | Power system, non-transitory computer readable medium and method |
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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 |
Granted publication date: 20140924 Termination date: 20200422 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |