CN101902068B - Alternating current/direct current power supply conversion control system - Google Patents
Alternating current/direct current power supply conversion control system Download PDFInfo
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- CN101902068B CN101902068B CN 201010246308 CN201010246308A CN101902068B CN 101902068 B CN101902068 B CN 101902068B CN 201010246308 CN201010246308 CN 201010246308 CN 201010246308 A CN201010246308 A CN 201010246308A CN 101902068 B CN101902068 B CN 101902068B
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Abstract
The invention belongs to the field of mobile communication devices, and particularly relates to an alternating current/direct current power supply conversion control system used for supplying power to repeaters, which comprises a shell, wherein the shell contains an alternating current/direct current power supply conversion module which is connected in the power supply circuit of a terminal device in series; the port of the alternating current/direct current power supply conversion module is connected with the port of a storage battery; the alternating current/direct current power supply conversion module comprises an anti-jamming part, a rectification conditioning part, a flyback converter, a push-pull converter and a detection control part; one output port of the anti-jamming part is connected with the input port of the terminal device via the rectification conditioning part; the other output port of the anti-jamming part is connected with the port of the storage battery via the rectification conditioning part and the flyback converter; one port of the detection control part is connected with the output port of the anti-jamming port; the other port is connected with the output port of the push-pull converter; and the output end of the detection control part is connected with the input port of the terminal device. The invention has the advantages of low cost, favorable compatibility, convenient engineering installation, low maintenance cost and high stability.
Description
Technical field
The invention belongs to the mobile communication equipment field, relate in particular to a kind of AC/DC power supply switching control system for the repeater power supply.
Background technology
In today of mobile communication technology develop rapidly, communication base station and repeater spread all over the world, and abundant communication base station and repeater coverage system have satisfied the demand of the daily mobile communication of people.But rural area and tourist district, the commercial power supply in the remote area such as suburbs is not enough and phenomenon that power supply grid easily breaks down exists for a long time, cause the terminal use can't use mobile phone communication thereby often cause mobile communication equipment to work, affect the problem of daily life and work.
For the problems referred to above common carrier, following several solution is arranged usually:
(1) buy solar cell power system, its basic composition is shown in Figure 1, sunshine under normal circumstances, solar panel is power terminal equipment, be battery charging simultaneously, when the cloudy day and can't to obtain night in the situation of luminous energy be power terminal equipment by batteries, controller for solar plays the adjustment supply power voltage between terminal equipment and solar panel, batteries, control the function that batteries discharges and recharges.
The shortcoming of this kind equipment is that cost is higher, and cost performance is low, and environment for use, uses the size of regional intensity of sunshine can the operation usefulness of system be had a huge impact.In case of night or continuous cloudy day all not providing enough electric energy for equipment; In addition, the easy adhesive dust in solar panel surface when in air, dust concentration is large, can cause absorbing the luminous energy deficiency; Secondly, the maintenance cost of system is high, and terminal equipment is necessary for the solar energy special equipment.In view of this, solar cell power system is multiplex large in intensity of sunshine, and the space is open, the area that height above sea level is higher.
(2) purchase special-purpose UPS standby power system, its basic composition is shown in Figure 2.When mains-supplied was normal, civil power was the power supply of terminal equipment and UPS power supply unit, and controlling power supply by the power supply TCU transfer control unit of UPS inside is charge in batteries; When commercial power interruption or when abnormal the UPS power supply unit to automatically switch to batteries be power terminal equipment.The shortcoming of this kind equipment is that purchase cost is high, and maintenance cost is high, and environment for use is restricted, and the dustproof and waterproof performance can't be guaranteed, and is used to indoor equipment that non-firm power is provided more, and volume is subjected to the batteries volume restrictions, and often volume and weight is bigger than normal.
(3) purchase the installation remote electric power system.Remote electric power system is arranged on suburbs and small towns usually, Scenic Spot Area, its basic composition is shown in Figure 3, the remote electric power system near-end machine is arranged in base station machine room, the output voltage of base station direct current-48V power cabinet is boosted to the 380V direct voltage through remote electric power system, for the remote electric power system remote termination provides the power supply input; Its shortcoming is that quantities is large, and input is many in advance, and installing terminal equipment is subjected to mounting distance, environment, and the impact of physical features factor is larger, accessory cables, the optical cable laying difficulty is large.
| Current programme | Cost | Difficulty of construction | Suitable environment | Reliability | Compatible |
| Solar cell system | High | Difficult | Poor | Poor | Generally |
| Remote electric power system | High | Difficult | Generally | Good | Generally |
| The UPS standby power system | High | Generally | Poor | Good | Generally |
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and provides a kind of simple in structure, and cost is low, and is compatible good, convenient engineering installation, and maintenance cost is low, the AC/DC power supply switching control system of good stability.
For achieving the above object, the present invention is achieved in that
AC/DC power supply switching control system comprises housing; Housing contains the AC/DC power transfer module that is connected in the power terminal equipment circuit; The port of described AC/DC power transfer module and the port of batteries join; Described AC/DC power transfer module comprises anti-interference part, rectification conditioning part, anti exciting converter, push-pull converter and detects control section;
Described power transfer module is battery charging, completes simultaneously the conversion of input and out-put supply parameter, and is power terminal equipment; The output port one tunnel of described anti-interference part joins through the input port of rectification conditioning part and terminal equipment; Its another road joins through the port of rectification conditioning part and anti exciting converter and batteries;
One port of described detection control section connects the output port of rectification conditioning part; The another port of described detection control section joins through the output port of push-pull converter and batteries; Detecting the output of control section and the input port of terminal equipment joins;
When civil power was normal, input power was power terminal equipment after anti-interference part and rectification conditioning part processing, is battery charging through the inner counter exciting converter simultaneously; When city's electrical anomaly, detect control section and start, and the internal system circuit is switched to push-pull converter work, be power terminal equipment afterwards completing the conversion of input with the out-put supply parameter.
As a kind of preferred version, the present invention also can be provided with lightning protection device; The port of described lightning protection device connects the port of AC/DC power transfer module.
As another kind of preferred version, the present invention also can be provided with battery detection control circuit; The port of described battery detection control circuit connects the port of batteries.
Further, housing of the present invention can adopt die sinking cast aluminium structure.
The present invention has taken full advantage of, has integrated the high-quality resource of common carrier, and the Practical Project used device is only battery pack and power of alterating and direct current a-b box, and cost is far below the traditional standby solution of powering.Provide convenience to the communication terminal device transformation in net work.
The present invention compared with prior art has following features:
(1) take full advantage of common carrier centralized procurement advantage compression battery purchase cost.
Battery belongs to low technology content product commonly used in emergency electric system, common carrier can be realized by centralized purchasing the purpose of cost squeeze usually.The present invention program takes full advantage of this existing superior resources.
(2) compatible good, multiple terminal equipment shares the same power supply plan.
At terminal equipment prime series connection power of alterating and direct current cross box of the present invention, realize the power supply conversion and control between civil power and reserve battery.When mains-supplied was normal, the AC-DC conversion case was the terminal communication power devices, was simultaneously the battery backup charging; When commercial power interruption or when abnormal, the AC-DC conversion case is controlled internal circuit, and to switch to battery backup be the terminal communication power devices, switches back after the city power recovery is normal to be civil power confession operating state normally again.
(3) small product size is little, and the environment for use scope is wide, and manufacturing and purchase cost are low
Power of alterating and direct current cross box container body of outer cover of the present invention adopts the die sinking cast aluminium, and the batch production cost is low, can adapt to the price competition in market.The container body of outer cover volume that the present invention adopts is little and have the dustproof and waterproof function, can be suitable for the Various Complex environment for use, and easy for installation.
(4) easy to maintenance, reliability is high
Power of alterating and direct current cross box of the present invention has that volume is little, and installing/dismounting (replacing) is advantage easily, and the power of alterating and direct current conversion efficiency is up to 90%, good operating stability, dependable performance.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.Protection scope of the present invention not only is confined to the statement of following content.
Fig. 1 is the solar cell power system theory diagram;
Fig. 2 is UPS standby power system theory diagram;
Fig. 3 is the remote electric power system theory diagram;
Fig. 4 is entire block diagram of the present invention;
Fig. 5 is AC/DC power transfer module installation diagram of the present invention;
Fig. 6 is schematic block circuit diagram of the present invention.
In figure: 1 is housing; 2 is the drain pan fin; 3 is lightning protection device; 4 is the AC/DC power transfer module; 5 is water joint.
Embodiment
Shown in Fig. 4～6, AC/DC power supply switching control system comprises housing 1; Housing 1 contains the AC/DC power transfer module 4 that is connected in the power terminal equipment circuit; The port of described AC/DC power transfer module 4 and the port of batteries join; Described AC/DC power transfer module 4 is battery charging, completes simultaneously the conversion of input and out-put supply parameter, and is power terminal equipment.AC/DC power transfer module 4 of the present invention comprises anti-interference part, rectification conditioning part, anti exciting converter, push-pull converter and detects control section;
The output port one tunnel of described anti-interference part joins through the input port of rectification conditioning part and terminal equipment; Its another road joins through the port of rectification conditioning part and anti exciting converter and batteries;
One port of described detection control section connects the output port of rectification conditioning part; The another port of described detection control section joins through the output port of push-pull converter and batteries; Detecting the output of control section and the input port of terminal equipment joins.
Shown in Figure 4, the power of alterating and direct current cross box is connected in the power terminal equipment circuit, when the civil power alternating current 220V was normal, the power supply cross box was the 24V charge in batteries, became the 320V direct current to provide power supply for terminal equipment the 220V AC rectification simultaneously; When the civil power alternating current 220V interrupted or be abnormal, the power supply cross box automatically switched to the storage battery power supply state, and it is power terminal equipment that the battery low-voltage direct current is boosted to the 320V direct current.
For ease of protection, the present invention also is provided with lightning protection device 3; The port of described lightning protection device 3 connects the port of AC/DC power transfer module.
Shown in Figure 5, be the taking into account system heat radiation, the present invention is fixed with drain pan fin 2 in described housing 1.In addition, the present invention can be provided with heat conductive pad between described housing 1 and drain pan fin 2.For ease of waterproof, the present invention is fixed with water joint 5 in the outlet of described housing 1.
When civil power was normal, input power was power terminal equipment after anti-interference part and rectification conditioning part processing, is battery charging through the inner counter exciting converter simultaneously; When city's electrical anomaly, detect control section and start, and the internal system circuit is switched to push-pull converter work, be power terminal equipment afterwards completing the conversion of input with the out-put supply parameter.
In addition, the present invention also is provided with battery detection control circuit; The port of described battery detection control circuit connects the port of batteries.Housing of the present invention adopts die sinking cast aluminium structure.
When mains-supplied is normal, 220V exchanges and inputs when entering power transfer module, first pass through anti-interference part (EMI anti-jamming circuit and anti-surge circuit), then carry out forming after rectification upwards 220 voltages of 100Hz waveform by rectification circuit, this voltage forming approximately through final after the interior voltage-stabilized power supply module that the effective voltage of 320V is terminal repeater power supply, is battery charging through the inner counter exciting converter simultaneously.
When the civil power middle-end and when abnormal, detect control section (AC detection of power loss controller) and can work also the inside modules operating circuit be switched to push-pull converter work, by accumulator battery voltage boost for the 320V effective voltage be terminal repeater power supply.
Battery detection control circuit comprises battery overvoltage/undervoltage testing circuit and battery constant voltage charge control circuit, and its major function provides protection for batteries exactly.
Be understandably, above about specific descriptions of the present invention, only for the present invention being described and being not to be subject to the described technical scheme of the embodiment of the present invention, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.
Claims (1)
1. AC/DC power supply switching control system, comprise housing (1), lightning protection device (3) and battery detection control circuit; It is characterized in that, housing (1) contains the AC/DC power transfer module (4) that is connected in the power terminal equipment circuit; The port of described AC/DC power transfer module (4) and the port of batteries join; Described AC/DC power transfer module (4) comprises anti-interference part, rectification conditioning part, anti exciting converter, push-pull converter and detects control section;
Described AC/DC power transfer module (4) is battery charging, completes simultaneously the conversion of input and out-put supply parameter, and is power terminal equipment; The output port one tunnel of described anti-interference part joins through the input port of rectification conditioning part and terminal equipment; Its another road joins through the port of rectification conditioning part and anti exciting converter and batteries;
One port of described detection control section connects the output port of rectification conditioning part; The another port of described detection control section joins through the output port of push-pull converter and batteries; Detecting the output of control section and the input port of terminal equipment joins;
When civil power was normal, input power was power terminal equipment after anti-interference part and rectification conditioning part processing, is battery charging through the inner counter exciting converter simultaneously; When city's electrical anomaly, detect control section and start, and the internal system circuit is switched to push-pull converter work, be power terminal equipment afterwards completing the conversion of input with the out-put supply parameter;
The port of described lightning protection device (3) connects the port of AC/DC power transfer module; The port of described battery detection control circuit connects the port of batteries; Described housing adopts die sinking cast aluminium structure; Be fixed with drain pan fin (2) in described housing (1); Be provided with heat conductive pad between described housing (1) and drain pan fin (2); Be fixed with water joint (5) in the outlet of described housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246308 CN101902068B (en) | 2010-08-06 | 2010-08-06 | Alternating current/direct current power supply conversion control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010246308 CN101902068B (en) | 2010-08-06 | 2010-08-06 | Alternating current/direct current power supply conversion control system |
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| CN101902068A CN101902068A (en) | 2010-12-01 |
| CN101902068B true CN101902068B (en) | 2013-06-12 |
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| CN 201010246308 Active CN101902068B (en) | 2010-08-06 | 2010-08-06 | Alternating current/direct current power supply conversion control system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951284A (en) * | 2010-10-12 | 2011-01-19 | 奥维通信股份有限公司 | Remote power supply system for repeater |
| CN102684240B (en) * | 2011-03-17 | 2015-01-28 | 上海中兴派能能源科技有限公司 | Management system applied to lithium ion battery and lithium ion battery pack |
| AU2016291545B2 (en) * | 2016-02-05 | 2018-12-13 | Guang Dong Oppo Mobile Telecommunications Corp., Ltd. | Charge method, adapter and mobile terminal |
| CN110034502A (en) * | 2019-05-22 | 2019-07-19 | 深圳市华益电气有限责任公司 | A kind of Novel outdoor communication equipment power supply unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201430719Y (en) * | 2009-06-15 | 2010-03-24 | 常州绿威电器有限公司 | Electronic emergency inverter |
| CN201758365U (en) * | 2010-08-06 | 2011-03-09 | 奥维通信股份有限公司 | Alternating-current/direct-current power conversion control device |
-
2010
- 2010-08-06 CN CN 201010246308 patent/CN101902068B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201430719Y (en) * | 2009-06-15 | 2010-03-24 | 常州绿威电器有限公司 | Electronic emergency inverter |
| CN201758365U (en) * | 2010-08-06 | 2011-03-09 | 奥维通信股份有限公司 | Alternating-current/direct-current power conversion control device |
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| CN101902068A (en) | 2010-12-01 |
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Inventor after: Du Fang Inventor after: Hu Ying Inventor after: Li Jun Inventor after: Tian Yue Inventor after: Xu Yong Inventor after: Sun Jin Inventor before: Du Fang Inventor before: Hu Ying Inventor before: Li Jun Inventor before: Tian Yue Inventor before: Xu Yong |
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Free format text: CORRECT: INVENTOR; FROM: DU FANG HU YING LI JUN TIAN YUE XU YONG TO: DU FANG HU YING LI JUN TIAN YUE XU YONG SUN JIN |