CN202042930U - Battery management system for solar air conditioner - Google Patents

Battery management system for solar air conditioner Download PDF

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Publication number
CN202042930U
CN202042930U CN201120178694XU CN201120178694U CN202042930U CN 202042930 U CN202042930 U CN 202042930U CN 201120178694X U CN201120178694X U CN 201120178694XU CN 201120178694 U CN201120178694 U CN 201120178694U CN 202042930 U CN202042930 U CN 202042930U
Authority
CN
China
Prior art keywords
relay
energy
circuit
storage battery
battery
Prior art date
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
Application number
CN201120178694XU
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Chinese (zh)
Inventor
刘飞
阮旭松
盘海清
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Epower Electronics Co Ltd
Original Assignee
Huizhou Epower Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huizhou Epower Electronics Co Ltd filed Critical Huizhou Epower Electronics Co Ltd
Priority to CN201120178694XU priority Critical patent/CN202042930U/en
Application granted granted Critical
Publication of CN202042930U publication Critical patent/CN202042930U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0046Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
    • F24F2005/0064Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
    • F24F2005/0067Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy with photovoltaic panels

Abstract

The utility model relates to a battery management system for a solar air conditioner. The system comprises a master control circuit, as well as a charge control circuit, a discharge control circuit, and a current detection circuit which are all connected to the master control circuit. The battery management system can manage the charge/discharge of an energy storage battery unit in real-time manner, collect voltage and current of an air-conditioner during electricity utilization process in a real time, judge whether battery over discharge exists or not in real time, and judge whether charge is needed or not according to present SOC (state of charge) of the battery. The power supply circuit of the system directly gets electricity from two ends of the energy storage battery unit, and converts part of the electrical energy output by the energy storage battery unit into a 12V power supply to supply power for a first relay, a second relay, and a third relay. The system can reasonably manage the work of the energy storage battery unit of the air conditioner, specifically in daytime with sufficient sunlight, heat energy generated by a solar panel is converted into electrical energy, part of which is used for supplying power for the air conditioner and other electricity consumption equipment, and surplus electrical energy is stored for the energy storage battery to get charged, thereby effectively lowering the burden of a power network and reducing the energy loss to the lowest.

Description

A kind of solar airconditioning battery management system
Technical field
The utility model relates to the battery management technical field, specifically is meant a kind of solar airconditioning battery management system.
Background technology
At present energy storage air-conditioning on the market all is to be directly changed into electric energy by solar energy to supply with air-conditioning through inversion again, will occur like this when weather during for sombre day sunlight deficiency or at night, air-conditioning is with regard to cisco unity malfunction.On the other hand, electric energy is directly supplied with air-conditioning through after the inversion, and big through voltage fluctuation occurring, unsettled phenomenon is damaged air-conditioning easily.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of battery management system that the safe and stable operation basis is provided for solar airconditioning.
For solving the problems of the technologies described above, the utility model is realized by the following technical solutions: a kind of solar airconditioning battery management system, comprise governor circuit and connected charging control circuit, charge/discharge control circuit, current detection circuit, also comprise power conversion circuits; Described charging control circuit comprises and anodal first relay that is connected of energy-storage battery group that it is subjected to governor circuit control to connect power conversion circuits and energy-storage battery group realization energy-storage battery group is charged; Described charge/discharge control circuit comprises second relay and the 3rd relay that are connected with energy-storage battery group positive and negative electrode respectively, and described second relay is in parallel with first relay; Second relay and the 3rd relay are discharged by governor circuit control connection discharge loop realization energy-storage battery group; Described current detection circuit comprises the current sensor that is connected between energy-storage battery group negative pole and the 3rd relay, and its induction charging and discharging circuit current signal passes to governor circuit.
Further, described solar airconditioning also comprises power circuit with battery management system, described power circuit comprises the DC/DC change-over circuit that is connected with second relay, during the discharge of energy-storage battery group, it is the power supply of first, second, third relay that its part electric energy with the output of energy-storage battery group converts the 12V power supply to;
Further, described power circuit also is included as the reserve battery of governor circuit and the power supply of first, second, third relay.
Described DC/DC change-over circuit is connected with reserve battery by the 4th relay, realizes the power supply switching.
Compared with prior art, the beneficial effects of the utility model are: the energy-storage battery group work that (1) described system can the reasonable management air-conditioning, a part was used for powering to current consuming apparatus such as air-conditionings after the thermal power transfer that is produced by solar panels when daytime is sunny became electric energy, unnecessary part is used for the charging storage to energy-storage battery, effectively alleviated the electrical network burden, it is minimum that energy loss is dropped to; (2) voltage of described system works is directly from the two ends power taking of energy-storage battery group, by after the inversion for system provides operating voltage, further energy-conservation, improve capacity usage ratio.
Description of drawings
Fig. 1 is solar airconditioning battery management system theory of constitution schematic block diagram.
Embodiment
For the ease of it will be appreciated by those skilled in the art that the utility model is explained in further detail below in conjunction with accompanying drawing and embodiment.
The solar airconditioning that the utility model disclosed comprises governor circuit, charging control circuit, charge/discharge control circuit, current detection circuit and power conversion circuits with battery management system.
Wherein, power conversion circuits promptly is made up of solar panels and DC transfer circuit, solar panels become electric energy with the thermal power transfer of its collection, again after the DC transfer circuit conversion one the tunnel through direct current ac converter circuit, the transformer booster circuit directly is the air-conditioning power supply, and one the tunnel is the energy-storage battery group charging energy storage of air-conditioning.
Charging process is controlled by battery management system described in the utility model; discharging and recharging of this battery management system real-time management energy-storage battery group; real-time collection air-conditioning is at the voltage with battery in the electric process; electric current; whether the real-time battery that judges whether phenomenon occurred putting; and can judge whether needs unlatching charging according to the current SOC of battery, with the protection battery, prolong the useful life of battery.
In the system, charging control circuit comprises and anodal first relay K 1 that is connected of energy-storage battery group that it is subjected to governor circuit control to connect power conversion circuits and energy-storage battery group realization energy-storage battery group is charged; Charge/discharge control circuit comprises that second relay K 2 and the 3rd relay K 3, the second relay K 2 that are connected with energy-storage battery group positive and negative electrode respectively are in parallel with first relay K 1; Second relay K 2 and the 3rd relay K 3 are discharged by governor circuit control connection discharge loop realization energy-storage battery group; Current detection circuit comprises the current sensor that is connected between energy-storage battery group negative pole and the 3rd relay, and its induction charging and discharging circuit current signal passes to governor circuit.
In the present embodiment, governor circuit and first, second, third relay adopt the 12V powered battery in the described system.In addition, during the discharge of energy-storage battery group, it is the power supply of first, second, third relay that the part electric energy that adopts the DC/DC change-over circuit that the energy-storage battery group is exported converts the 12V power supply to, with saves energy.In addition, system is provided with the alternate lead-acid battery, and the DC/DC change-over circuit is connected with the 12V battery by the 4th relay, realizes the power supply switching.
For overhauling conveniently, be connected with first switch SW, 1, the first switch SW, 1 other end at energy-storage battery group positive pole and connect first, second relay.When need overhaul energy-storage battery group and circuit, cut off first switch, close whole system work.
In order to guarantee the stability of system works, many places are provided with fuse in the circuit system, for example also are in series with fuse between the 3rd relay and the energy-storage battery group negative pole.The fuse of 400V, 10A is set between the DC/DC change-over circuit and second relay.
The foregoing description is the preferred version that the utility model is realized; and indefiniteness is exhaustive; the utility model can also have other variations under same idea; need to prove; do not breaking away under the utility model design prerequisite, any conspicuous replacement and minor variations are all within protection range of the present utility model.

Claims (6)

1. a solar airconditioning battery management system comprises governor circuit and connected charging control circuit, charge/discharge control circuit, current detection circuit, also comprises power conversion circuits, it is characterized in that,
Described charging control circuit comprises and anodal first relay that is connected of energy-storage battery group, and it is subjected to governor circuit control to connect power conversion circuits and energy-storage battery group realization energy-storage battery group is charged;
Described charge/discharge control circuit comprises second relay and the 3rd relay that are connected with energy-storage battery group positive and negative electrode respectively, and described second relay is in parallel with first relay; Second relay and the 3rd relay are discharged by governor circuit control connection discharge loop realization energy-storage battery group;
Described current detection circuit comprises the current sensor that is connected between energy-storage battery group negative pole and the 3rd relay, and its induction charging and discharging circuit current signal passes to governor circuit.
2. solar airconditioning battery management system according to claim 1, it is characterized in that: also comprise power circuit, described power circuit comprises the DC/DC change-over circuit that is connected with second relay, during the discharge of energy-storage battery group, it is the power supply of first, second, third relay that its part electric energy with the output of energy-storage battery group converts the 12V power supply to; Described DC/DC change-over circuit is connected with the 12V battery by the 4th relay, realizes the power supply switching.
3. solar airconditioning battery management system according to claim 2 is characterized in that: described power circuit also is included as the reserve battery of governor circuit and the power supply of first, second, third relay.
4. solar airconditioning battery management system according to claim 3 is characterized in that: be connected with fuse between the described DC/DC change-over circuit and second relay.
5. solar airconditioning battery management system according to claim 4 is characterized in that: described energy-storage battery group positive pole is connected with first switch, connects first, second relay by first switch.
6. solar airconditioning battery management system according to claim 5 is characterized in that: also be in series with fuse between described the 3rd relay and the energy-storage battery group negative pole.
CN201120178694XU 2011-05-31 2011-05-31 Battery management system for solar air conditioner Expired - Fee Related CN202042930U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120178694XU CN202042930U (en) 2011-05-31 2011-05-31 Battery management system for solar air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120178694XU CN202042930U (en) 2011-05-31 2011-05-31 Battery management system for solar air conditioner

Publications (1)

Publication Number Publication Date
CN202042930U true CN202042930U (en) 2011-11-16

Family

ID=44970355

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120178694XU Expired - Fee Related CN202042930U (en) 2011-05-31 2011-05-31 Battery management system for solar air conditioner

Country Status (1)

Country Link
CN (1) CN202042930U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104848468A (en) * 2014-02-18 2015-08-19 珠海格力电器股份有限公司 Energy processing method and system for multi-source power supply air-conditioning system
CN104852457A (en) * 2015-05-20 2015-08-19 徐伯琴 DC variable frequency fan system
CN107726496A (en) * 2013-12-24 2018-02-23 珠海格力电器股份有限公司 PV air-conditioner system and its control method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107726496A (en) * 2013-12-24 2018-02-23 珠海格力电器股份有限公司 PV air-conditioner system and its control method
CN104848468A (en) * 2014-02-18 2015-08-19 珠海格力电器股份有限公司 Energy processing method and system for multi-source power supply air-conditioning system
CN104848468B (en) * 2014-02-18 2018-03-06 珠海格力电器股份有限公司 The energy processing method and system of multi source contribution air-conditioning system
CN104852457A (en) * 2015-05-20 2015-08-19 徐伯琴 DC variable frequency fan system

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111116

Termination date: 20190531

CF01 Termination of patent right due to non-payment of annual fee