Dual-power-supply air conditioning system
The solar photovoltaic safety control device in the dual-power air conditioning system enables efficient switching between mains power and photovoltaic power supply, solving the problem of low switching efficiency of the air conditioner's power supply circuit and ensuring stable operation of the air conditioner under different power conditions, with priority given to photovoltaic power supply.
Patent Information
- Application Number
- CN202423160706.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-20
AI Technical Summary
When using mains power and solar photovoltaic panels, the current air conditioner has low power supply circuit switching efficiency, which causes the air conditioner to malfunction when the power supply from the photovoltaic panels is unstable.
The system employs a dual-power air conditioning system, including a solar photovoltaic safety control device. Through an AC-to-DC unit, a DC power supply voltage analysis unit, a compensation unit, a load power analysis unit, and a combined control unit, it achieves efficient switching between mains power and photovoltaic power, prioritizing the use of photovoltaic power to ensure a stable power supply.
It enables efficient switching between mains power and photovoltaic panel power for air conditioners, ensuring stable operation of air conditioners under different power conditions, prioritizing the use of green energy, and improving the reliability and efficiency of power supply.
Smart Images
Figure CN223636259U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a power distribution technical field especially relates to a dual power air conditioning system. BACKGROUND
[0002] At present, most air conditioners use the alternating current of the mains as single alternating current power supply, power supply for the air conditioner, and the AC-DC unit in the air conditioner converts the alternating current into direct current to power the outdoor unit and indoor unit. Or use solar photovoltaic panels as single direct current power supply, use the inverter to step up the transmission of direct current to the air conditioner power supply, and the AC-DC unit in the air conditioner converts the alternating current into direct current to power the outdoor unit and indoor unit.
[0003] When it is cloudy or overcast, the solar photovoltaic panel power supply is unstable and cannot meet the use of the air conditioner. When only the solar photovoltaic panel is used as single direct current power supply, the air conditioner cannot be used.
[0004] If the above two power supply methods are simply combined for use, the switching efficiency of the mains and photovoltaic power supply will be low. Therefore, the low switching efficiency of the mains and photovoltaic power supply has become a technical problem to be solved. CONTENT OF THE UTILITY MODEL
[0005] The utility model provides a dual power air conditioning system, which solves the technical problem of low switching efficiency of the power supply circuit of the air conditioner.
[0006] To solve the above technical problems, the technical solution adopted by the utility model is as follows:
[0007] The application discloses a dual-power air conditioner system, which comprises an outdoor unit and an indoor unit of an air conditioner, and further comprises a solar photovoltaic safety control device.
[0008] Further, the outdoor unit comprises an outdoor unit box body, an outdoor unit operating unit and an outdoor temperature sensor fixed in the outdoor unit box body, the outdoor unit operating unit is electrically connected with the outdoor temperature sensor, the indoor unit comprises an indoor unit box body, an indoor unit operating unit and an indoor temperature sensor fixed in the indoor unit box body, the indoor unit operating unit is electrically connected with the indoor temperature sensor, the air conditioner total power detection unit is electrically connected with the indoor unit operating unit and the outdoor unit operating unit.
[0009] Further, the solar photovoltaic safety control device is fixedly installed in the box body of the outdoor unit.
[0010] Further, the controller is in bidirectional communication with the first DC power load power analysis unit, the second DC power load power analysis unit and the air conditioner total power detection unit respectively and independently.
[0011] The further technical scheme is characterized in that: the AC power supply, the first circuit breaker, the solar photovoltaic panel and the second circuit breaker are further included, the AC-DC conversion unit is electrically connected with the AC power supply through the first circuit breaker, and the second DC power voltage analysis unit is electrically connected with the solar photovoltaic panel through the second circuit breaker.
[0012] The beneficial effects generated by the above technical scheme are that:
[0013] The dual-power air conditioning system comprises an outdoor unit and an indoor unit of an air conditioner and a solar photovoltaic safety control device, the solar photovoltaic safety control device comprises an AC-DC conversion unit, a first DC power voltage analysis unit, a second DC power voltage analysis unit, a controller, a timer, a first DC power compensation unit, a second DC power compensation unit, a first DC power load power analysis unit, a second DC power load power analysis unit, a dual-power combination control unit and an air conditioner total power detection unit, the first DC power voltage analysis unit, the first DC power compensation unit and the first DC power load power analysis unit form a first power supply branch, the second DC power voltage analysis unit, the second DC power compensation unit and the second DC power load power analysis unit form a second power supply branch, the second DC power voltage analysis unit obtains the voltage of a second DC power formed by a solar photovoltaic panel, and the stable or unstable state of the voltage is informed to the controller, the controller selects one power supply branch to be turned on, and then efficient switching of dual power is realized.
[0014] For details, see the part of the specific embodiment. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the principle block diagram of the utility model. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.
[0017] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.
[0018] AsFigure 1 The utility model discloses a kind of dual-power air conditioning systems including the outdoor unit and indoor unit of air conditioner and solar photovoltaic safety control device, outdoor unit includes outdoor unit box body and the outdoor temperature sensor of outdoor unit operating unit fixed in outdoor unit box body, outdoor unit operating unit is electrically connected with outdoor temperature sensor, indoor unit includes indoor unit box body and the indoor temperature sensor of indoor unit operating unit fixed in indoor unit box body, indoor unit operating unit is electrically connected with indoor temperature sensor.
[0019] Solar photovoltaic safety control device is fixedly installed in the machine case inside outdoor unit, solar photovoltaic safety control device includes AC-DC unit, first DC power voltage analysis unit, second DC power voltage analysis unit, controller, timer, first DC power compensation unit, second DC power compensation unit, first DC power load power analysis unit, second DC power load power analysis unit, dual-power merging control unit and air conditioner total power detection unit, AC-DC unit, first DC power voltage analysis unit, first DC power compensation unit, first DC power load power analysis unit and dual-power merging control unit are sequentially electrically connected, second DC power voltage analysis unit, second DC power compensation unit, second DC power load power analysis unit and dual-power merging control unit are sequentially electrically connected, dual-power merging control unit is electrically connected with air conditioner total power detection unit, air conditioner total power detection unit is electrically connected with indoor unit operating unit, air conditioner total power detection unit is electrically connected with outdoor unit operating unit, controller is separately electrically connected with the control end of AC-DC unit, the control end of first DC power voltage analysis unit, the control end of second DC power voltage analysis unit, the control end of timer, the control end of first DC power compensation unit, the control end of second DC power compensation unit and the control end of dual-power merging control unit respectively, controller is separately electrically connected with first DC power load power analysis unit, second DC power load power analysis unit and air conditioner total power detection unit and bidirectional communication, timer is electrically connected with first DC power compensation unit, second DC power compensation unit, first DC power load power analysis unit, second DC power load power analysis unit and air conditioner total power detection unit respectively.
[0020] Wherein, AC-DC unit, first DC power voltage analysis unit, second DC power voltage analysis unit, controller, timer, first DC power compensation unit, second DC power compensation unit, first DC power load power analysis unit, second DC power load power analysis unit, dual-power merging control unit and air conditioner total power detection unit itself and corresponding connection technology are prior art and will not be repeated here.
[0021] Usage instruction:
[0022] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0023] Working process:
[0024] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0025] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0026] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0027] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0028] The AC power supply formed by the AC power through the first circuit breaker and the AC-DC unit is connected with the AC power supply, and the DC power supply formed by the second DC power supply voltage analysis unit through the second circuit breaker and the solar photovoltaic panel is connected with the second DC power supply.
[0029] When the second direct current power formed by the solar photovoltaic panel can stably supply power to the air conditioner, the controller controls the second direct current power formed by the solar photovoltaic panel to supply power to the air conditioner through the second power supply branch. When the second direct current power formed by the solar photovoltaic panel cannot stably supply power to the air conditioner, the controller controls the alternating current power of the commercial power supply to supply power to the air conditioner through the AC-DC unit and the first power supply branch. The dual power supply is efficiently switched, and photovoltaic power supply is used as much as possible.
Claims
1. A dual power air conditioning system comprising an outdoor unit and an indoor unit of an air conditioner, characterized by: The solar photovoltaic safety control device comprises an AC-DC conversion unit, a first DC power voltage analysis unit, a second DC power voltage analysis unit, a controller, a timer, a first DC power compensation unit, a second DC power compensation unit, a first DC power load power analysis unit, a second DC power load power analysis unit, a dual power merging control unit and an air conditioner total power detection unit.
2. The dual power air conditioning system according to claim 1, wherein: The outdoor unit comprises an outdoor unit box body and an outdoor unit running unit and an outdoor temperature sensor fixed in the outdoor unit box body, the outdoor unit running unit is electrically connected with the outdoor temperature sensor, the indoor unit comprises an indoor unit box body and an indoor unit running unit and an indoor temperature sensor fixed in the indoor unit box body, the indoor unit running unit is electrically connected with the indoor temperature sensor, the air conditioner total power detection unit is electrically connected with the indoor unit running unit and the outdoor unit running unit.
3. The dual power air conditioning system according to claim 2, wherein: The solar photovoltaic safety control device is fixedly installed in the machine box of the outdoor unit.
4. The dual power air conditioning system according to claim 1, wherein: The controller is in bidirectional communication with the first DC power load power analysis unit, the second DC power load power analysis unit and the air conditioner total power detection unit respectively.
5. The dual power air conditioning system according to any one of claims 1-4, wherein: The AC-DC conversion unit is electrically connected with an AC power source through a first circuit breaker, and the second DC power voltage analysis unit is electrically connected with a solar photovoltaic panel through a second circuit breaker.