CN203787982U - Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency - Google Patents
Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency Download PDFInfo
- Publication number
- CN203787982U CN203787982U CN201320805876.4U CN201320805876U CN203787982U CN 203787982 U CN203787982 U CN 203787982U CN 201320805876 U CN201320805876 U CN 201320805876U CN 203787982 U CN203787982 U CN 203787982U
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- CN
- China
- Prior art keywords
- relay
- diode
- charging
- photovoltaic
- circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency. The circuit is characterized in that the photovoltaic charging circuit is connected with a diode D1 and a relay K1 which are connected in parallel to prevent PV inversed connection. Since the structure that the diode D1 and the relay K1 connected in parallel is used, at night or in cloudy day, when power of photovoltaic charging is lower than a preset charging power value, the relay K1 is disconnected, the current flows through the diode D1, preventing a problem that the relay switches frequently. In sunny day, when power of photovoltaic charging reaches the preset charging power value, the relay K1 is closed to make the diode D1 in short circuit. Thus, a problem of loss of the diode in larger power is prevented, and meanwhile charging efficiency is improved.
Description
Technical field
The utility model relates to a kind of charging circuit technical field, specifically a kind of photovoltaic charged circuit that prevents PV reversal connection.
Background technology
Solar charger need to have anti-reverse function, need to add counnter attack diode in porch, and in the time that charge power is very large, counnter attack diode losses also increases, and needs on the one hand to increase heat radiation cost, has reduced greatly on the other hand the efficiency of solar charger; Adopt separately relay, when in the time of low-power, solar charger judges inadequate energy charging, charger is by block system relay, and after block system relay, PV voltage raises, and charger is attracting electric relay again, reworks, and the work going round and beginning again is not like this until PV has electricity.The present invention has avoided relay in the time of low-power frequently to switch, and has also avoided the problem of diode losses under high-power state.
Summary of the invention
The purpose of this utility model is to provide a kind of frequent photovoltaic charged circuit that prevents PV reversal connection and raising charge efficiency switching of relay that prevented.
For achieving the above object, the technical scheme that the utility model adopts is:
The photovoltaic charged circuit that prevents PV reversal connection and raising charge efficiency, is characterized in that: in described photovoltaic charged circuit, be serially connected with the diode D1 that prevents PV reversal connection and relay K 1 in parallel.
Described relay K 1, in order to default charge power value to be set, when in the time becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When at night or when cloudy day, photovoltaic charged power is during lower than default charge power value, and relay K 1 disconnects, and electric current is passed through from diode D1.
The beneficial effects of the utility model: owing to adopting the diode D1 of above-mentioned parallel connection and the version of relay K 1, when at night or when cloudy day, photovoltaic charged power is during lower than default charge power value, relay K 1 disconnects, make electric current from diode D1 process, thereby prevented the frequent problem of switching of relay; When in the time becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit, has so just avoided the problem of diode losses under high-power state, has improved charge efficiency simultaneously.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is electrical schematic diagram of the present utility model.
Embodiment
As shown in Figure 1, prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency, in described photovoltaic charged circuit, be serially connected with the diode D1 that prevents PV reversal connection and relay K 1 in parallel.
Described relay K 1, in order to default charge power value to be set, when in the time becoming a fine day, when photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When at night or when cloudy day, photovoltaic charged power is during lower than default charge power value, and relay K 1 disconnects, and electric current is passed through from diode D1.
The above is preferred implementation of the present utility model; certainly can not limit with this interest field of the utility model; should be understood that; for those skilled in the art; the technical solution of the utility model is modified or is equal to replacement, do not depart from the protection range of technical solutions of the utility model.
Claims (1)
1. a photovoltaic charged circuit that prevents PV reversal connection and raising charge efficiency, is characterized in that: in described photovoltaic charged circuit, be serially connected with the diode D1 that prevents PV reversal connection and relay K 1 in parallel; Described relay K 1, in order to default charge power value to be set, in the time that photovoltaic charged power reaches default charge power value, relay K 1 adhesive, by diode D1 short circuit; When photovoltaic charged power is during lower than default charge power value, relay K 1 disconnects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805876.4U CN203787982U (en) | 2013-12-10 | 2013-12-10 | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805876.4U CN203787982U (en) | 2013-12-10 | 2013-12-10 | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787982U true CN203787982U (en) | 2014-08-20 |
Family
ID=51324135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805876.4U Expired - Fee Related CN203787982U (en) | 2013-12-10 | 2013-12-10 | Photovoltaic charging circuit preventing PV inversed connection and improving charging efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633704A (en) * | 2013-12-10 | 2014-03-12 | 惠州天能源科技有限公司 | Photovoltaic charge circuit preventing PV reverse connection and providing improved charging efficiency |
-
2013
- 2013-12-10 CN CN201320805876.4U patent/CN203787982U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633704A (en) * | 2013-12-10 | 2014-03-12 | 惠州天能源科技有限公司 | Photovoltaic charge circuit preventing PV reverse connection and providing improved charging efficiency |
| CN103633704B (en) * | 2013-12-10 | 2016-04-13 | 惠州天能源科技有限公司 | Prevent the photovoltaic charged circuit of PV reversal connection and raising charge efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: TIANBAO ELECTRONIC (HUIZHOU) CO., LTD. Effective date: 20150512 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150512 Address after: 516005 Dongjiang Industrial Zone, Shuikou subdistrict, Huicheng District, Guangdong, Huizhou Patentee after: HUIZHOU TEN SOURCES SOLAR ELECTRICITY LIMITED Address before: 516005 Dongjiang Industrial Zone, Shuikou subdistrict, Huicheng District, Guangdong, Huizhou Patentee before: HUIZHOU TEN SOURCES SOLAR ELECTRICITY LIMITED Patentee before: Ten Pao Electronics (Huizhou) Co., Ltd. |
|
| 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: 20140820 Termination date: 20171210 |