CN220914992U - Automatic switching circuit for solar charging of commercial power - Google Patents
Automatic switching circuit for solar charging of commercial power Download PDFInfo
- Publication number
- CN220914992U CN220914992U CN202322583618.2U CN202322583618U CN220914992U CN 220914992 U CN220914992 U CN 220914992U CN 202322583618 U CN202322583618 U CN 202322583618U CN 220914992 U CN220914992 U CN 220914992U
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- China
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- output voltage
- input port
- voltage input
- relay
- solar
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a solar charging automatic switching circuit of a commercial power, which comprises an AC/DC switching power supply, a solar output voltage input port Vo1, a commercial power output voltage input port Vo2, a relay RY1, a triode Q1, a resistor R2, a charging management module and a battery, wherein the solar charging automatic switching circuit is connected with the AC/DC switching power supply; vo1 is connected with the AC/DC switching power supply through RY1 and the battery through the charging management module respectively; vo2 is connected to the AC/DC switching power supply and to the battery through RY1 and the charge management module; the collector of Q1 is connected RY1, the emitter of Q1 is connected between Vo and RY1, the base of Q1 is connected to Vo1 through R1, and to the AC/DC switching power supply through R2. The utility model can realize automatic switching between the commercial power and the solar energy, fully and effectively utilizes the solar energy, can greatly save the commercial power and simultaneously omits manual operation.
Description
Technical Field
The utility model relates to the technical field of solar charging, in particular to a commercial power solar charging automatic switching circuit.
Background
Solar energy will become one of the main energy sources worldwide in the 21 st century, being the most primitive energy source, and almost all other energy sources on earth come directly or indirectly from solar energy. Solar energy is energy generated by the continuous nuclear fusion reaction process of black seeds in the sun or on the surface. The solar energy has the advantages of sufficient resources, long service life, wide distribution, safety, cleanliness, reliable technology and the like. The range of applications is very broad, as solar energy can be converted into many other forms of energy.
The existing solar charging circuit is used for charging the lithium battery, when the output voltage of the solar charging circuit is insufficient, the solar charging circuit is manually switched to the mains supply charging circuit for charging, but the mode is troublesome to switch, and the solar charging circuit cannot be automatically switched to the solar charging when the output voltage of the solar charging circuit is sufficient, so that the solar energy cannot be fully and effectively used for charging, and the mains supply is saved.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides a solar charging automatic switching circuit for commercial power.
The technical scheme of the utility model is as follows:
The utility power solar charging automatic switching circuit comprises an AC/DC switching power supply, a solar energy output voltage input port Vo1, a utility power output voltage input port Vo2, a relay RY1, a triode Q1, a resistor R2, a charging management module and a battery;
The solar energy output voltage input port Vo1 is connected with an AC/DC switching power supply through a relay RY1 and a battery through a charging management module respectively;
the commercial power output voltage input port Vo2 is connected with an AC/DC switching power supply and is connected with a battery through a relay RY1 and a charging management module;
The collector of the triode Q1 is connected with the relay RY1, the emitter of the triode Q1 is connected between the commercial power output voltage input port Vo and the relay RY1, and the base of the triode Q1 is connected with the solar energy output voltage input port Vo1 through a resistor R1 and is connected with the AC/DC switching power supply through a resistor R2.
The solar energy output voltage input port Vo1 is connected between the relay RY1 and the charge management module through the diode D1.
The electric power relay also comprises a diode D2, and the emitter of the triode Q1 is connected between the commercial power output voltage input port Vo and the relay RY1 through the diode D2.
And the current limiting resistor R3 is further included, and the current limiting resistor R3 is connected between the collector of the triode Q1 and the relay RY 1.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can realize automatic switching between the commercial power and the solar energy, fully and effectively utilizes the solar energy, can greatly save the commercial power and simultaneously omits manual operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic circuit diagram of a solar charging automatic switching circuit for commercial power provided by the utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In order to illustrate the technical scheme of the utility model, the following description is made by specific examples.
Examples
Referring to fig. 1, the present embodiment provides an automatic switching circuit for solar charging of a utility power, which includes an AC/DC switching power supply, a solar output voltage input port Vo1, a utility power output voltage input port Vo2, a diode D1, a diode D2, a relay RY1, a triode Q1, a resistor R2, a current limiting resistor R3, a charging management module, and a battery. The solar energy output voltage input port Vo1 is connected with an AC/DC switching power supply through a diode D1 and a relay RY1, and is connected with a battery through the diode D1 and a charging management module; the commercial power output voltage input port Vo2 is connected with the AC/DC switching power supply and is connected with a battery through the relay RY1 and the charging management module; the collector of the triode Q1 is connected with the relay RY1 through a current limiting resistor R3, the emitter of the triode Q1 is connected between the commercial power output voltage input port Vo and the relay RY1 through a diode D2, and the base of the triode Q1 is connected with the solar energy output voltage input port Vo1 through a resistor R1 and is connected with the AC/DC switching power supply through a resistor R2.
The AC/DC switching power supply in the embodiment can meet the requirement of six-level energy efficiency, has small no-load power consumption, high power less than 0.21W and low power less than 0.075W. When solar energy normally generates electricity, the solar energy output voltage input port Vo1 normally inputs, the direct current offset is formed by the base electrode of the triode Q1 through the resistor R1 and the resistor R2 loop, the resistor R2> is greater than the resistor R1, the base electrode potential of the triode Q1 approximates to the solar energy output voltage input port Vo1, the base electrode and the emitter electrode of the triode Q1 cannot reach the conducting voltage no matter the input state of the mains supply output voltage input port Vo2, the triode Q1 is in a cut-off state, the relay RY1 is not attracted, and the solar energy output voltage input port Vo1 is added to the battery through the diode D1 to charge the battery. That is, as long as the solar power is normally generated, the solar power charges the battery regardless of the state of the AC/DC switching power supply. If the AC/DC switching power supply works normally at this time, the AC/DC switching power supply is in an idle standby state, and the consumption is small. When little or no solar power is generated, the solar output voltage input port Vo1 drops, and at this time, if the AC/DC switching power supply is operated, the utility output voltage input port Vo2 forms a loop through the diode D2, the base and emitter of the transistor Q1, and the resistor R2, the transistor Q1 is turned on, the relay RY1 is turned on, and the utility output voltage input port Vo2 is added to the charge management module through the relay RY1 to charge the battery. The diode D1 is used for preventing the AC/DC switching power supply from interfering solar energy when the AC/DC switching power supply charges the battery; the diode D2 is used to ensure reliable cut-off of the transistor Q1 when the solar output voltage input port Vo1 and the utility output voltage input port Vo2 are both normal (because the solar output voltage input port Vo1 and the utility output voltage input port Vo2 are not significantly different).
The foregoing description of the preferred embodiment of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (4)
1. A commercial power solar charging automatic switching circuit is characterized in that: the solar energy charging system comprises an AC/DC switching power supply, a solar energy output voltage input port Vo1, a commercial power output voltage input port Vo2, a relay RY1, a triode Q1, a resistor R2, a charging management module and a battery;
The solar energy output voltage input port Vo1 is connected with an AC/DC switching power supply through a relay RY1 and a battery through a charging management module respectively;
the commercial power output voltage input port Vo2 is connected with an AC/DC switching power supply and is connected with a battery through a relay RY1 and a charging management module;
The collector of the triode Q1 is connected with the relay RY1, the emitter of the triode Q1 is connected between the commercial power output voltage input port Vo and the relay RY1, and the base of the triode Q1 is connected with the solar energy output voltage input port Vo1 through a resistor R1 and is connected with the AC/DC switching power supply through a resistor R2.
2. The utility power solar charging automatic switching circuit according to claim 1, wherein: the solar energy output voltage input port Vo1 is connected between the relay RY1 and the charge management module through the diode D1.
3. The utility power solar charging automatic switching circuit according to claim 1, wherein: the electric power relay also comprises a diode D2, and the emitter of the triode Q1 is connected between the commercial power output voltage input port Vo and the relay RY1 through the diode D2.
4. The utility power solar charging automatic switching circuit according to claim 1, wherein: and the current limiting resistor R3 is further included, and the current limiting resistor R3 is connected between the collector of the triode Q1 and the relay RY 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583618.2U CN220914992U (en) | 2023-09-21 | 2023-09-21 | Automatic switching circuit for solar charging of commercial power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583618.2U CN220914992U (en) | 2023-09-21 | 2023-09-21 | Automatic switching circuit for solar charging of commercial power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914992U true CN220914992U (en) | 2024-05-07 |
Family
ID=90910527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322583618.2U Active CN220914992U (en) | 2023-09-21 | 2023-09-21 | Automatic switching circuit for solar charging of commercial power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914992U (en) |
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2023
- 2023-09-21 CN CN202322583618.2U patent/CN220914992U/en active Active
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