CN210569295U - Double-heating photovoltaic water heater - Google Patents
Double-heating photovoltaic water heater Download PDFInfo
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- CN210569295U CN210569295U CN201920528709.7U CN201920528709U CN210569295U CN 210569295 U CN210569295 U CN 210569295U CN 201920528709 U CN201920528709 U CN 201920528709U CN 210569295 U CN210569295 U CN 210569295U
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- access end
- heater
- current access
- direct current
- alternating current
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
A dual-heating photovoltaic water heater: a double heating circuit is adopted; the double-heating circuit is provided with a direct current access end and an alternating current access end, the direct current access end is connected with the heater for direct current, the alternating current access end is connected with the heater for alternating current, the direct current access end is connected into a photovoltaic panel assembly of the photovoltaic water heater, the commercial power is connected into the alternating current access end, and the direct current access end and the alternating current access end are respectively connected into the heater for direct current and the heater for alternating current through the temperature control switch. The utility model discloses a process that unnecessary commercial power and photovoltaic board subassembly power supply were switched has been got rid of to the heating methods of two heaters when under the abominable condition of illumination, has got rid of and has damaged switching circuit easily, has reduced the circuit complexity simultaneously, and the circuit of being convenient for is maintained, has reduced photovoltaic water heater's cost of manufacture.
Description
Technical Field
The utility model relates to a photovoltaic water heater field, concretely relates to two heating photovoltaic water heaters.
Background
Photovoltaic water heater generally adopts single heater in the aspect of heating circuit, only can supply power through photovoltaic board subassembly, can normal use when illumination condition is outstanding, but has the condition that the heating is slow or accomplish unable heating when illumination condition is abominable.
In order to solve the problem that the photovoltaic water heater cannot be used under the condition of poor illumination conditions, the conventional solution is to simultaneously connect a heater through a mains supply and a photovoltaic panel assembly, and complete the power supply switching of the photovoltaic panel assembly and the mains supply through a complex switching circuit. Although the problem that the LED lamp cannot be used under the condition of poor illumination conditions is solved, the complicated switching circuit is easy to damage and difficult to maintain, and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a two heating photovoltaic water heaters.
The technical scheme of the utility model specifically does:
a dual-heating photovoltaic water heater: a double heating circuit is adopted; the double-heating circuit is provided with a direct current access end and an alternating current access end, the direct current access end is connected with the heater for direct current, the alternating current access end is connected with the heater for alternating current, the direct current access end is connected into a photovoltaic panel assembly of the photovoltaic water heater, the commercial power is connected into the alternating current access end, and the direct current access end and the alternating current access end are respectively connected into the heater for direct current and the heater for alternating current through the temperature control switch.
Further: indicator lights are connected to both the dc heater and the ac heater.
Further: the alternating current access end is connected with the heater for alternating current after being connected with the rectifier bridge.
Further: and a direct current arc suppression circuit is additionally arranged on the temperature control switch connected to the direct current access end.
Further: the direct current arc suppression circuit is provided with a resistor and a capacitor which are connected in parallel, and the current flowing direction is ensured to be a one-way process from the access end to the load through a diode.
Further: the resistor is a thermistor.
Further: the direct current access end and the alternating current access end supply power to the display after passing through the voltage reduction module.
Further: the direct current access end and the alternating current access end are both connected into the voltage reduction module through the rectifier bridge.
Further: the battery is also connected behind the voltage reduction module.
Compared with the prior art, the technical effect of the utility model is that, the process that unnecessary commercial power and photovoltaic board subassembly power supply were switched has been got rid of to the heating mode that adopts two heaters when under the abominable condition of illumination, has got rid of and has damaged switching circuit easily, has reduced the circuit complexity simultaneously, and the circuit maintenance of being convenient for has reduced photovoltaic water heater's cost of manufacture.
Drawings
Fig. 1 is a schematic view of the present invention.
Detailed Description
A double-heating photovoltaic water heater is characterized in that a double-heating circuit is adopted.
As shown in fig. 1, the dual heating circuit includes a DC input terminal DC and an AC input terminal AC, the DC input terminal DC is connected to a DC heater TE2, the AC input terminal AC is connected to an AC heater TE1, both the DC heater TE2 and the AC heater TE1 may be commercial water heater heaters, the DC input terminal DC is connected to a photovoltaic panel assembly of the photovoltaic water heater, the commercial power is connected to the AC input terminal AC, and the DC input terminal DC and the AC input terminal AC are connected to a DC heater TE2 and an AC heater TE1 through a thermostat K1 and a thermostat K2.
When the photovoltaic water heater adopting the double heating mode is excellent in illumination condition, the photovoltaic panel assembly and the mains supply power at the same time, and the direct-current heater TE2 and the alternating-current heater TE1 can both operate in a high-power state, so that the heating speed of the water heater is increased, the use of the mains supply is reduced, and solar energy can be fully utilized. The photovoltaic panel assembly has low output power under the severe condition of illumination, the direct-current heater TE2 cannot work due to low power supply power, the alternating-current heater TE1 is mainly used for heating, the alternating-current heater TE1 is used for supplying power through commercial power, the unnecessary process of switching the commercial power and the power supply of the photovoltaic panel assembly is eliminated when the heating mode of the double heaters is adopted under the severe condition of illumination, a switching circuit which is easy to damage is eliminated, the circuit complexity is reduced, the circuit maintenance is facilitated, and the manufacturing cost of the photovoltaic water heater is reduced.
In order to facilitate the recognition of the operating state of the dc heater TE2 or the ac heater TE1, the dc heater TE2 and the ac heater TE1 are connected to an indicator lamp L2 and an indicator lamp L1, respectively, wherein the indicator lamp and the heater are connected in parallel to simplify the circuit.
Further, in order to improve the safety of the water heater, the alternating current inlet end AC is connected with the alternating current heater after being connected with the rectifier bridge D5. The circuit of the heating part of the alternating current access end is converted into a safer direct current circuit.
Wherein for effectual improvement photovoltaic board output, direct current crowbar circuit is installed additional to the temperature detect switch K2 on the direct current incoming end DC. When the output voltage of the photovoltaic panel is improved, the electric arc generated when the temperature control switch K2 is disconnected is avoided, and the circuit can be prevented from being damaged by high voltage when the output power of the photovoltaic panel is improved.
Specifically, the direct current arc suppression circuit is provided with a resistor R1 and a capacitor C1 which are connected in parallel, and a unidirectional process of current flowing to the load from the access end is guaranteed through a diode D1 and a diode D2. Further, the resistor R1 adopts a thermistor, and the thermistor adopts a positive temperature coefficient thermistor, so that not only can the arc current at two ends of the temperature control switch be quickly consumed on the resistor, but also the current passing through the resistor and weak when the switch is switched off can be ensured.
In order to facilitate better observation of the water temperature and other states of the water heater, the double-heating photovoltaic water heater is further provided with a display, and the display is powered by the direct current access end DC and the alternating current access end AC after passing through the voltage reduction module. The voltage reduction module can adopt a voltage reduction module sold in the market. Further, in order to improve the power supply stability of the display, the direct current input end DC and the alternating current input end AC are connected to the voltage reduction module after passing through the rectifier bridge D4 and the rectifier bridge D3. A battery BT1 is connected behind the further voltage reduction module, and can supply power to the display when the external power supply is powered off.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (9)
1. The utility model provides a two heating photovoltaic water heater which characterized in that: a double heating circuit is adopted; the double-heating circuit is provided with a direct current access end and an alternating current access end, the direct current access end is connected with the heater for direct current, the alternating current access end is connected with the heater for alternating current, the direct current access end is connected into a photovoltaic panel assembly of the photovoltaic water heater, the commercial power is connected into the alternating current access end, and the direct current access end and the alternating current access end are respectively connected into the heater for direct current and the heater for alternating current through the temperature control switch.
2. A dual-heating photovoltaic water heater as defined in claim 1, wherein: indicator lights are connected to both the dc heater and the ac heater.
3. A dual-heating photovoltaic water heater as defined in claim 1, wherein: the alternating current access end is connected with the heater for alternating current after being connected with the rectifier bridge.
4. A dual-heating photovoltaic water heater as defined in claim 1, wherein: and a direct current arc suppression circuit is additionally arranged on the temperature control switch connected to the direct current access end.
5. The dual-heating photovoltaic water heater of claim 4, wherein: the direct current arc suppression circuit is provided with a resistor and a capacitor which are connected in parallel, and the current flowing direction is ensured to be a one-way process from the access end to the load through a diode.
6. A dual-heating photovoltaic water heater as recited in claim 5 wherein: the resistor is a thermistor.
7. A dual-heating photovoltaic water heater as defined in claim 1, wherein: the direct current access end and the alternating current access end supply power to the display after passing through the voltage reduction module.
8. A dual-heating photovoltaic water heater as defined in claim 7, wherein: the direct current access end and the alternating current access end are both connected into the voltage reduction module through the rectifier bridge.
9. A dual-heating photovoltaic water heater as recited in claim 8 wherein: the battery is also connected behind the voltage reduction module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528709.7U CN210569295U (en) | 2019-04-18 | 2019-04-18 | Double-heating photovoltaic water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920528709.7U CN210569295U (en) | 2019-04-18 | 2019-04-18 | Double-heating photovoltaic water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210569295U true CN210569295U (en) | 2020-05-19 |
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ID=70639671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920528709.7U Active CN210569295U (en) | 2019-04-18 | 2019-04-18 | Double-heating photovoltaic water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210569295U (en) |
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2019
- 2019-04-18 CN CN201920528709.7U patent/CN210569295U/en active Active
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