CN201252413Y - Solar energy photovoltaic device - Google Patents
Solar energy photovoltaic device Download PDFInfo
- Publication number
- CN201252413Y CN201252413Y CNU2008201468292U CN200820146829U CN201252413Y CN 201252413 Y CN201252413 Y CN 201252413Y CN U2008201468292 U CNU2008201468292 U CN U2008201468292U CN 200820146829 U CN200820146829 U CN 200820146829U CN 201252413 Y CN201252413 Y CN 201252413Y
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- storage battery
- direct current
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- solar panel
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- Y02E10/566—
Abstract
The utility model relates to a solar energy photovoltaic device comprising a solar energy battery plate, a controller and an accumulator, wherein the controller is respectively and electrically connected with the solar energy battery plate and the accumulator, and comprises an DC/DC conversion unite, a charging management unit and a discharge management unit. The solar energy battery plate converts sunlight into direct current, the direct current charges for the accumulator through the controller, and the accumulator outputs direct current through the controller to directly use by a direct current electrical device. Since direct current of the accumulator is directly output to the direct current electrical device, no inverter is provided. The solar energy photovoltaic device has the advantages of lowering the power, the weight and the production cost of the solar energy battery plate, and simultaneously lowering the volume, the weight and the production cost of the accumulator, and increasing the reliability and the security and the like.
Description
Technical field the utility model relates to the power supply technique field, particularly relates to utilizing solar powered device.
The existing photovoltaic device of background technology comprises solar panel, controller, storage battery and inverter, sees shown in Figure 7.Sunlight is through solar panel 1 ' be converted to direct current, the direct current via controller charges a battery, storage battery via controller output DC is given the DC/AC inverter, the DC/AC inverter is converted to the 110/220V alternating current with direct current and uses to AC electric appliance, as AC electric appliance such as television set, satellite receiver, broadcast receiver, fluorescent lamp, street lamps.Owing to there is inverter, there is following shortcoming in existing photovoltaic device: efficient is low; The 110/220VAC alternating current is arranged, exceed safe voltage 42.4VAC/60VDC, fail safe is low; Need to sell by epistasis safety system authenticating party; Device construction is complicated heavy; Reliability is low; The cost height; Transportation, installation, maintenance expense costliness.
Utility model content the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and the photovoltaic device that proposes a kind of direct output of DC current.
The utility model solve the technical problem can be by realizing by the following technical solutions:
Design, a kind of photovoltaic device of use comprise solar panel, controller and storage battery, and described controller is electrically connected with solar panel and storage battery respectively, and described controller comprises:
The DC/DC converting unit is used for described solar panel output is converted to stable direct current output or described storage battery output DC is converted to the required direct current of direct-flow current consumer;
The Charge Management unit is used for carrying out constant current charge or floating charge to described storage battery, and the overvoltage protection to storage battery is provided;
The discharge administrative unit is used for carrying out under-voltage protection, crossing and put protection and/or temperature-compensating to described storage battery.
The utility model is owing to directly export to the direct-flow current consumer use with the direct current of storage battery, there is not inverter, because the conversion efficiency of inverter is generally less than 90%, compare with prior art, technique effect of the present utility model is: the identical situation of electrical appliance power consumption during with electricity consumption with identical situation under, reduce power, weight and the cost of described solar panel, reduced the area of solar panel; Volume, weight and the cost of storage battery have also been reduced simultaneously; Strengthen reliability and fail safe, saved the care and maintenance expense.
Description of drawings
Fig. 1 is the block diagram of the utility model embodiment one;
Fig. 2 is the block diagram of the utility model embodiment two;
Fig. 3 is the block diagram of the utility model embodiment three;
Fig. 4 is the block diagram of the utility model embodiment four;
Fig. 5 is the block diagram of the utility model embodiment five;
Fig. 6 is the block diagram of the utility model embodiment six;
Fig. 7 is the block diagram of photovoltaic device of the prior art.
Embodiment is described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.
Embodiment one of the present utility model comprises solar panel 1, controller 1 and storage battery 1 as shown in Figure 1.Described controller comprises four modular units: Charge Management unit 21, discharge administrative unit 22, a DC/DC converting unit 23, the 2nd DC/DC converting unit 24.
Concrete connection is as follows:
Output voltage, electric current instability that solar panel causes owing to illumination variation, a DC/DC converting unit 23 are used for converting solar panel 1 output to stable direct current output; Be converted to stable voltage or electric current through a DC/DC converting unit 23, can realize, the utilance of solar panel 1 is reached maximum battery constant voltage, constant current or floating charge.Charge Management unit 21 is used for storage battery 3 is carried out constant current charge or floating charge, battery overvoltage protection and prevents over-charging of battery damage etc.Discharge administrative unit 22 is used for storage battery 3 is carried out under-voltage protection, crosses and to put protection, temperature-compensating, prevents from that battery from crossing to put damage.Owing to storage battery output voltage, electric current along with load variations changes, the voltage that load obtains, electric current instability.Storage battery can provide stable voltage or electric current to load after 24 conversions of the 2nd DC/DC converting unit.The 2nd DC/DC converting unit 24 is converted to the required various direct currents of direct-flow current consumer with storage battery 3 output DCs.
Present embodiment two as shown in Figure 2, described controller 2 comprises three modular units: DC/DC converting unit 23, Charge Management unit 21, discharge administrative unit 22.
Concrete connection is as follows:
DC/DC converting unit 23 converts solar panel 1 output to stable direct current output, and the power output of solar panel 1 is used maximization.Charge Management unit 21 is used for storage battery 3 is carried out constant voltage, constant current charge, floating charge, battery overvoltage protection, prevents over-charging of battery damage etc.Discharge administrative unit 22 is used for storage battery 3 is provided under-voltage protection, crosses and to put protection, temperature-compensating, prevent that battery from crossing and put damage.
The utility model embodiment three as shown in Figure 3, described controller 2 comprises three modular units: Charge Management unit 21, discharge administrative unit 22, DC/DC converting unit 23.
Concrete connection is as follows:
Charge Management unit 21 is used for storage battery 3 is carried out constant voltage, constant current charge or floating charge, battery overvoltage protection and prevent over-charging of battery damage etc.Discharge administrative unit 22 is used for storage battery 3 is carried out under-voltage protection, temperature-compensating, crosses and to put protection, prevents that battery from crossing puts damage.DC/DC converting unit 23 is converted to the required various direct currents of direct-flow current consumer with the storage battery output DC.
The utility model embodiment four as shown in Figure 4, described controller comprises three modular units: Charge Management unit 21, DC/DC converting unit 23, discharge administrative unit 22.
21 pairs of storage batterys in Charge Management unit 3 carry out constant voltage, constant current charge or floating charge, the battery overvoltage protection, prevent over-charging of battery damage etc.DC/DC converting unit 23 is converted to direct current with solar panel 1 output DC and gives direct-flow current consumer, and the power output of solar panel 1 is used maximization.Discharge administrative unit 22 pairs of storage batterys 3 provide under-voltage protection, temperature-compensating, cross and put protection, prevent that battery from crossing puts damage.
The utility model embodiment five as shown in Figure 5, described controller 2 comprises four modular units: Charge Management unit 21, unilateal conduction control unit 25, discharge administrative unit 22 and DC/DC converting unit 23.
21 pairs of storage batterys in Charge Management unit 3 carry out constant voltage, constant current charge or floating charge, and temperature-compensating, battery overvoltage protection are provided, and prevent over-charging of battery damage etc.To discharge administrative unit 22 of unilateal conduction control unit 25 is isolated mutually with Charge Management unit 21, with the work that guarantees that each unit is stable, and raising solar panel utilance.Discharge administrative unit 22 provides under-voltage protection, crosses and to put protection, prevents from that battery from crossing to put damage.DC/DC converting unit 23 is converted to direct current with solar panel 3 output DCs and gives direct-flow current consumer.
The utility model embodiment six as shown in Figure 6, described controller 2 comprises four modular units: DC/DC converting unit 23, Charge Management unit 21, unilateal conduction control unit 25, discharge administrative unit 22.
DC/DC converting unit 23 is converted to direct current with solar panel 1 output DC and gives Charge Management unit 21 and unilateal conduction control unit 25; And the power output of solar panel used maximization.21 pairs of storage batterys in Charge Management unit 3 carry out constant voltage, constant current charge or floating charge, the battery overvoltage protection is provided, prevents over-charging of battery damage etc.To discharge administrative unit 22 of unilateal conduction control unit 25 is isolated mutually with Charge Management unit 21.Discharge administrative unit 22 pairs of storage batterys 3 provide under-voltage protection, temperature-compensating, cross and put protection, prevent that battery from crossing puts damage.
Claims (3)
1. a photovoltaic device comprises solar panel, controller and storage battery, and described controller is electrically connected with solar panel and storage battery respectively, it is characterized in that: described controller comprises:
The DC/DC converting unit is used for described solar panel output is converted to stable direct current output or described storage battery output DC is converted to the required direct current of direct-flow current consumer;
The Charge Management unit is used for carrying out constant voltage, constant current charge or floating charge to described storage battery, and the overvoltage protection to storage battery is provided;
The discharge administrative unit is used to provide under-voltage protection, crosses and put protection and/or temperature-compensating.
2. photovoltaic device as claimed in claim 1, it is characterized in that: described controller comprises two DC/DC converting units, the one DC/DC converting unit is used for converting described solar panel output to stable direct current output, and the 2nd DC/DC converting unit is used for described storage battery output DC is converted to the required direct current of direct-flow current consumer.
3. photovoltaic device as claimed in claim 1 is characterized in that: described controller also comprises the unilateal conduction control unit, is used for described Charge Management unit and discharge administrative unit are isolated mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201468292U CN201252413Y (en) | 2008-08-20 | 2008-08-20 | Solar energy photovoltaic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201468292U CN201252413Y (en) | 2008-08-20 | 2008-08-20 | Solar energy photovoltaic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201252413Y true CN201252413Y (en) | 2009-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201468292U Expired - Fee Related CN201252413Y (en) | 2008-08-20 | 2008-08-20 | Solar energy photovoltaic device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201252413Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388730A (en) * | 2016-10-18 | 2017-02-15 | 河池学院 | Sweeping robot charged by solar energy |
| CN109494788B (en) * | 2018-11-08 | 2020-09-29 | 珠海格力电器股份有限公司 | Photovoltaic electrical appliance system and voltage protection value control method and device thereof |
-
2008
- 2008-08-20 CN CNU2008201468292U patent/CN201252413Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106388730A (en) * | 2016-10-18 | 2017-02-15 | 河池学院 | Sweeping robot charged by solar energy |
| CN109494788B (en) * | 2018-11-08 | 2020-09-29 | 珠海格力电器股份有限公司 | Photovoltaic electrical appliance system and voltage protection value control method and device thereof |
| US11831151B2 (en) | 2018-11-08 | 2023-11-28 | Gree Electric Appliances, Inc. Of Zhuhai | Photovoltaic electric appliance system, method and device of controlling voltage protection value thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20130820 |