CN104596049A - Current loop communication circuit and air conditioner - Google Patents
Current loop communication circuit and air conditioner Download PDFInfo
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- CN104596049A CN104596049A CN201410841157.7A CN201410841157A CN104596049A CN 104596049 A CN104596049 A CN 104596049A CN 201410841157 A CN201410841157 A CN 201410841157A CN 104596049 A CN104596049 A CN 104596049A
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- machine
- optocoupler
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- current loop
- communication circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—Arrangement or mounting thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
The invention belongs to the field of air-conditioning equipment and particularly relates to a current loop communication circuit and an air conditioner. According to the embodiment adopted by the invention, a switch unit and a current-limiting resistor are additionally arranged between a receiving optical coupler and an emitting optical coupler on an existing current loop communication circuit, and the emitting optical coupler and the current-limiting resistor can be respectively used for controlling switch-on and switch-off of the switch unit, so that a purpose of transmitting a signal through a current loop is achieved. Specifically, when the current loop communication circuit is in a standby state, the emitting optical coupler is cut off, and the current-limiting resistor is used for controlling the switch-on of the switch unit to keep the circuit in a state of receiving a wake-up signal. In the standby state, the emitting optical coupler is kept in cut-off without keeping breakover current, and therefore, a purpose of reducing standby power consumption can be achieved. Moreover, the current loop communication circuit provided by the invention has the advantages of being extensive in application, simple in circuit structure, low in cost, strong in interference resistance, and the like.
Description
Technical field
The invention belongs to air-conditioning equipment field, particularly relate to a kind of current loop communication circuit and air-conditioner.
Background technology
At present, mostly convertible frequency air-conditioner on market is applied current ring to communicate, its communication loop usually as shown in Figure 1, by main frame (indoor set) telecommunication circuit, form a unidirectional current loop I from machine (off-premises station) telecommunication circuit, current source, this be also cost lower, be simple and easy to realize, anti-interference stronger telecommunication circuit.
But, this telecommunication circuit to Received signal strength in standby, it must maintain conducting from the optocoupler transmitted machine, namely shown in Fig. 1 must conducting always from the transmitting optocoupler U2 of machine (off-premises station).Like this when being in holding state from machine, in order to the wake-up signal of main frame can be received at any time, the On current (being generally be more than or equal to 3mA) launching optocoupler U2 must be maintained.Therefore, current ring communication loop of the prior art also needs current sinking, produces more power consumption when standby, require more and more instantly high in energy-conserving and environment-protective, the stand-by power consumption of automatically controlled scheme requires also to become more and more higher, is badly in need of a kind of current loop communication circuit of low standby power loss.
Summary of the invention
Namely object of the present invention is to provide a kind of current loop communication circuit and a kind of air-conditioner, to solve the technical problem that existing current loop communication circuit can produce stand-by power consumption, not meet energy-conserving and environment-protective requirement.
On the one hand, current loop communication circuit provided by the invention, comprises and receives optocoupler, transmitting optocoupler, switch element and current-limiting resistance; Described current-limiting resistance is connected between the control end of electric current loop input and described switch element, the transmitting terminal of described reception optocoupler is connected between the input of electric current loop input and described switch element, the receiving terminal of described transmitting optocoupler is connected between the control end of described switch element and electric current loop output, and the output of described switch element is connected on electric current loop output;
Time standby, described transmitting optocoupler cut-off, described current-limiting resistance is in order to control the conducting of described switch element to maintain described circuit in the state receiving wake-up signal.
On the other hand, current loop communication circuit provided by the invention, comprises interconnective current source, host module and from machine module, and described comprising from machine module receives optocoupler from machine, launch optocoupler, from machine switch element with from machine current-limiting resistance from machine; Describedly be connected between current source output and the described control end from machine switch element from machine current-limiting resistance, describedly receive the transmitting terminal of optocoupler from machine and be connected between current source output and the described input from machine switch element, describedly launch the receiving terminal of optocoupler from machine and be connected between the described control end from machine switch element and the described output from machine module, the described output from machine switch element is connected on described from the output of machine module, describedly receives the receiving terminal of optocoupler from machine and the described transmitting terminal launching optocoupler from machine connects supply voltage respectively simultaneously and from machine MCU;
Time standby, describedly launch optocoupler cut-off from machine, described from machine current-limiting resistance in order to control the described conducting from machine switch element to maintain described circuit in the state receiving wake-up signal.
The third aspect, air-conditioner provided by the invention, comprises indoor set and off-premises station, and its indoor set and off-premises station are the current loop communication circuits provided by above-mentioned second aspect carries out Signal transmissions.
The reception optocoupler of the present invention on existing current loop communication circuit and launch between optocoupler, a switch element and current-limiting resistance are set up, conducting and the cut-off of this transmitting optocoupler and current-limiting resistance gauge tap unit can be utilized respectively, thus be reached through the object of electric current loop signal transmission.Particularly, when current loop communication circuit is standby, launch optocoupler cut-off, current-limiting resistance is in order to control the conducting of described switch element to maintain described circuit in the state receiving wake-up signal.Because launch optocoupler remain off time standby, no longer need the maintenance of On current, therefore can reach the object reducing stand-by power consumption.Further, current loop communication circuit provided by the invention, have be widely used, circuit structure is simple, realize the advantages such as the low and antijamming capability of cost is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of current loop communication circuit in prior art;
Fig. 2 is the structural representation of the current loop communication circuit that one embodiment of the invention provides;
Fig. 3 is the structural representation of the current loop communication circuit that another preferred embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 2 is the structural representation of the current loop communication circuit that one embodiment of the invention provides; For convenience of explanation, illustrate only part related to the present embodiment, as shown in the figure:
A kind of current loop communication circuit, comprises and receives optocoupler IC1, transmitting optocoupler IC2, switch element and current-limiting resistance R.Particularly, current-limiting resistance R is connected between electric current loop input and the control end of switch element, the transmitting terminal receiving optocoupler IC1 is connected between electric current loop input and the input of switch element, the receiving terminal launching optocoupler IC2 is connected between the control end of switch element and electric current loop output, and the output of switch element is connected on electric current loop output.
In specific implementation process, switch element can be made up of the switching tubes such as triode, IGBT, metal-oxide-semiconductor and circuit thereof.
According to the current loop communication circuit that the present embodiment provides, in practical work process, particularly when standby, launch optocoupler IC2 cut-off, current-limiting resistance R in order to the conducting of gauge tap unit to maintain described circuit in the state receiving wake-up signal.That is: time standby, launch optocoupler IC2 remain off, but whole current loop communication circuit is still in accepting state to receive wake-up signal at any time; Because now transmitting optocoupler IC2 cut-off and current loop communication circuit do not have electric current to input, reception optocoupler IC1 and switch element are all again not power consumptions, and the stand-by power consumption of whole like this circuit is just very little; But once current loop communication circuit has the electric current of wake-up signal to input, because now launching optocoupler IC2 is cut-off, then wake-up signal electric current can make switching means conductive by current-limiting resistance R, thus makes current lead-through receive optocoupler IC1, and then receives wake-up signal.Because launch optocoupler remain off time standby, no longer need the maintenance of On current, therefore can reach the object reducing stand-by power consumption.Further, the current loop communication circuit that the present embodiment provides, have be widely used, circuit structure is simple, realize the advantages such as the low and antijamming capability of cost is strong.
Namely Fig. 3 shows the structural representation of the current loop communication circuit that another preferred embodiment of the present invention provides, and the current loop communication circuit that above-mentioned Fig. 2 provides is applied in the circuit structure of a two-way communication by it.For convenience of explanation, it again illustrate only part related to the present embodiment, as shown in the figure:
A kind of current loop communication circuit, comprises interconnective current source 10, host module 20 and from machine module 30.As improvement, should comprise from machine module 30 and receive optocoupler U31 from machine, launch optocoupler U32, from machine switch element 301 with from machine current-limiting resistance 302 from machine.Particularly, from machine current-limiting resistance 302 be connected on current source 10 output and between the control end of machine switch element 301, the transmitting terminal receiving optocoupler U31 from machine be connected on current source 10 output and between the input of machine switch element 301, the receiving terminal launching optocoupler U32 from machine is connected between the control end from machine switch element 301 and the output from machine module 30, be connected on from the output of machine module 30 from the output of machine switch element 301, receive the receiving terminal of optocoupler U31 from machine and meet supply voltage VCC respectively and from machine MCU from the transmitting terminal that optocoupler U32 launched by machine simultaneously.
Same, when whole current loop communication circuit is standby, launch optocoupler U32 cut-off from machine, from machine current-limiting resistance 302 in order to control from the conducting of machine switch element 301, to maintain described circuit in the state receiving wake-up signal.That is: when standby, launch optocoupler U32 remain off, but be still in accepting state so that can the wake-up signal that sends of Receiving Host module 20 at any time from machine module 30.Because now launch optocoupler U32 cut-off and current loop communication circuit does not have electric current input, receive optocoupler U31 and be all again not power consumption from machine switch element 301, therefore the stand-by power consumption of whole circuit is just very little; But once host module 20 has the electric current of wake-up signal to input, because now launching optocoupler U32 is cut-off, then wake-up signal electric current can be made from machine switch element 301 conducting by current-limiting resistance 302, thus makes current lead-through receive optocoupler U31, and then receives wake-up signal.
Particularly, as a preferred embodiment, host module 20 comprises main frame and receives optocoupler U21 and main frame transmitting optocoupler U22; The transmitting terminal that main frame receives optocoupler U21 is connected on to be launched between the receiving terminal of optocoupler U22 from the output of machine module 30 and main frame, the receiving terminal of main frame transmitting optocoupler U22 connects the input of current source 10 simultaneously, and the transmitting terminal of receiving terminal and main frame transmitting optocoupler U22 that main frame receives optocoupler U21 meets supply voltage VCC and main frame MCU respectively simultaneously.
Further, as preferably, host module 20 can also comprise host switch unit 201 and main frame current-limiting resistance 202; This main frame current-limiting resistance 202 is connected on between the output and the control end of host switch unit 201 of machine module 30, the transmitting terminal that main frame receives optocoupler U21 is connected on between the output and the input of host switch unit 201 of machine module 30, the receiving terminal that optocoupler U22 launched by main frame is connected between the control end of host switch unit 201 and the input of current source 10, and the output of host switch unit 201 is also connected on the input of current source 10.
Further, in specific implementation process, the structure composition of current source 10 as shown in Figure 3, can comprise diode D1, resistance R1, resistance R2, Zener diode Z1 and electrochemical capacitor E1; The negative electrode of diode D1 connects live wire L, the first end of the anode contact resistance R1 of diode D1, second end of resistance R1 and the first end of resistance R2, the anode of Zener diode Z1 and the negative pole of electrochemical capacitor E1 connect the input that formed common contact is current source 10 altogether, the positive pole of second end of resistance R2, the negative electrode of Zener diode Z1 and electrochemical capacitor E1 connects the output that formed common contact is current source 10 altogether, and connects with zero line N.
Further, when specific implementation, switch element can be made up of the switching tubes such as triode, IGBT, metal-oxide-semiconductor and circuit thereof.Namely from the structure composition of machine switch element 301 and host switch unit 201 can be triode, IGBT and/or metal-oxide-semiconductor.In the preferred embodiment shown in the drawings, what all adopt from machine switch element 301 and host switch unit 201 is PNP type triode.Particularly, the base stage of PNP type triode, collector and emitter correspond respectively to the control end of switch element, input and output.
In fact, in the embodiment shown in the drawings, no matter be from machine switch element 301 or host switch unit 201, all on its control end and input, be connected in series a resistance respectively, be beneficial to the stable transfer ensureing wake-up signal electric current.Further, be serially connected with resistance and one way conducting device from the output of machine module 30, this one way conducting device includes but not limited to diode.Same, the resistance of serial connection and one way conducting device are also the stable transfer in order to ensure wake-up signal electric current.
Current loop communication circuit according to Fig. 3, in practical work process, time standby, launches optocoupler U32 cut-off from machine, current-limiting resistance 302 in order to the conducting of gauge tap unit 301 with holding circuit in the state receiving wake-up signal.When the main frame of host module 20 launches optocoupler U22 turn-on current source 10, to when inputting the electric current of wake-up signal from machine module 30, optocoupler U32 remain off is launched from machine, wake-up signal electric current makes from machine switch element 301 conducting by current-limiting resistance 302, thus make current lead-through receive optocoupler U31 from machine, and then receive wake-up signal and be transferred to main frame reception optocoupler U21.Because launch optocoupler U32 remain off from machine time standby, no longer need the maintenance of On current, therefore can reach the object reducing stand-by power consumption.Further, the current loop communication circuit that the present embodiment provides, have be widely used, circuit structure is simple, realize the advantages such as the low and antijamming capability of cost is strong.
When above-mentioned current loop communication circuit is applied to air-conditioner field, for normal domestic use air-conditioning, indoor set is host module, and off-premises station just belongs to from machine module.Therefore, the embodiment of the present invention finally also provides a kind of air-conditioner, and this air-conditioner comprises indoor set and off-premises station, and its indoor set and off-premises station are the current loop communication circuits provided by each embodiment above-mentioned carries out Signal transmissions.
To sum up, the reception optocoupler of the embodiment of the present invention on existing current loop communication circuit and launch between optocoupler, a switch element and current-limiting resistance are set up, utilize conducting and the cut-off of this transmitting optocoupler and current-limiting resistance gauge tap unit respectively, thus be reached through the object of electric current loop signal transmission.Particularly, when current loop communication circuit is standby, launch optocoupler cut-off, current-limiting resistance is in order to control the conducting of described switch element to maintain described circuit in the state receiving wake-up signal.Because launch optocoupler remain off time standby, no longer need the maintenance of On current, therefore can reach the object reducing stand-by power consumption.Further, current loop communication circuit provided by the invention, have be widely used, circuit structure is simple, realize the advantages such as the low and antijamming capability of cost is strong.
It should be noted that in above-described embodiment, included unit is carry out dividing according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit, also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although with reference to previous embodiment to invention has been comparatively detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments or carry out equivalent replacement to wherein portion of techniques feature.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a current loop communication circuit, is characterized in that, described circuit comprises reception optocoupler, launches optocoupler, switch element and current-limiting resistance;
Described current-limiting resistance is connected between the control end of electric current loop input and described switch element, the transmitting terminal of described reception optocoupler is connected between the input of electric current loop input and described switch element, the receiving terminal of described transmitting optocoupler is connected between the control end of described switch element and electric current loop output, and the output of described switch element is connected on electric current loop output;
Time standby, described transmitting optocoupler cut-off, described current-limiting resistance is in order to control the conducting of described switch element to maintain described circuit in the state receiving wake-up signal.
2. current loop communication circuit as claimed in claim 1, it is characterized in that, described switch element comprises triode, IGBT and/or metal-oxide-semiconductor.
3. a current loop communication circuit, comprises interconnective current source, host module and from machine module, it is characterized in that, described comprising from machine module receives optocoupler from machine, launch optocoupler, from machine switch element with from machine current-limiting resistance from machine;
Describedly be connected between current source output and the described control end from machine switch element from machine current-limiting resistance, describedly receive the transmitting terminal of optocoupler from machine and be connected between current source output and the described input from machine switch element, describedly launch the receiving terminal of optocoupler from machine and be connected between the described control end from machine switch element and the described output from machine module, the described output from machine switch element is connected on described from the output of machine module, describedly receives the receiving terminal of optocoupler from machine and the described transmitting terminal launching optocoupler from machine connects supply voltage respectively simultaneously and from machine MCU;
Time standby, describedly launch optocoupler cut-off from machine, described from machine current-limiting resistance in order to control the described conducting from machine switch element to maintain described circuit in the state receiving wake-up signal.
4. current loop communication circuit as claimed in claim 3, is characterized in that, described host module comprises main frame and receives optocoupler and main frame transmitting optocoupler;
The transmitting terminal of described main frame reception optocoupler is connected on the described output from machine module and described main frame is launched between the receiving terminal of optocoupler, the receiving terminal of described main frame transmitting optocoupler connects the input of described current source simultaneously, and the transmitting terminal of receiving terminal and described main frame transmitting optocoupler that described main frame receives optocoupler meets supply voltage and main frame MCU respectively simultaneously.
5. current loop communication circuit as claimed in claim 4, it is characterized in that, described host module also comprises host switch unit and main frame current-limiting resistance;
Described main frame current-limiting resistance is connected on described between the output and the control end of described host switch unit of machine module, the transmitting terminal that described main frame receives optocoupler is connected on described between the output and the input of described host switch unit of machine module, between the control end that the receiving terminal that optocoupler launched by described main frame is connected on described host switch unit and the input of described current source, the output of described host switch unit is also connected on the input of described current source.
6. current loop communication circuit as claimed in claim 5, it is characterized in that, described current source comprises diode D1, resistance R1, resistance R2, Zener diode Z1 and electrochemical capacitor E1;
The negative electrode of described diode D1 connects live wire L, the anode of described diode D1 connects the first end of described resistance R1, second end of described resistance R1 and the first end of described resistance R2, the anode of described Zener diode Z1 and the negative pole of described electrochemical capacitor E1 connect the input that formed common contact is described current source altogether, the positive pole of second end of described resistance R2, the negative electrode of described Zener diode Z1 and described electrochemical capacitor E1 connects the output that formed common contact is described current source altogether, and connects with zero line N.
7. current loop communication circuit as claimed in claim 5, is characterized in that, describedly comprises triode, IGBT and/or metal-oxide-semiconductor from machine switch element; Described host switch unit comprises triode, IGBT and/or metal-oxide-semiconductor.
8. current loop communication circuit as claimed in claim 7, it is characterized in that, the described control end from machine switch element and input are serially connected with a resistance respectively; The control end of described host switch unit and input are also serially connected with a resistance respectively.
9. current loop communication circuit as claimed in claim 7, it is characterized in that, the described output from machine module is serially connected with resistance and one way conducting device.
10. an air-conditioner, its indoor set and off-premises station carry out Signal transmissions by a current loop communication circuit, it is characterized in that, described current loop communication circuit is the current loop communication circuit described in any one of claim 3-9.
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| CN201410841157.7A CN104596049B (en) | 2014-12-26 | 2014-12-26 | Current loop communication circuit and air-conditioner |
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| CN201410841157.7A CN104596049B (en) | 2014-12-26 | 2014-12-26 | Current loop communication circuit and air-conditioner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990197A (en) * | 2015-05-13 | 2015-10-21 | 广东美的制冷设备有限公司 | Air conditioner, outdoor unit and power supply control system thereof |
| CN105352129A (en) * | 2015-11-28 | 2016-02-24 | 安徽朗格暖通设备有限公司 | Current feedback circuit and air conditioner |
| CN105972768A (en) * | 2016-05-26 | 2016-09-28 | 广东美的制冷设备有限公司 | Electric current loop communication control circuit and method of air conditioner |
| CN107547109A (en) * | 2017-08-04 | 2018-01-05 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| CN112833520A (en) * | 2021-01-19 | 2021-05-25 | 海信（广东）空调有限公司 | Control device, air conditioner controller, air conditioner and control method thereof |
| CN113945002A (en) * | 2020-07-17 | 2022-01-18 | 海信（山东）空调有限公司 | Communication conversion circuit and air conditioner |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0354523A2 (en) * | 1988-08-11 | 1990-02-14 | GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. | Remote control for an electronic apparatus with switching power supply |
| CN2824103Y (en) * | 2005-02-03 | 2006-10-04 | 王筱果 | Domestic electrical appliance standy power supply controller |
| CN2901458Y (en) * | 2005-12-15 | 2007-05-16 | 广东美的电器股份有限公司 | Current ring serial synchronous full duplex communication system for frequency changing air conditioner |
| CN102878651A (en) * | 2012-10-16 | 2013-01-16 | 四川长虹电器股份有限公司 | Intelligent inverter air conditioner with low standby power |
| CN202758190U (en) * | 2012-05-31 | 2013-02-27 | 苏州路之遥科技股份有限公司 | Non-isolated standby zero power consumption circuit |
| CN202975669U (en) * | 2012-12-07 | 2013-06-05 | 海信科龙电器股份有限公司 | Low standby power-consumption control circuit |
| CN103529722A (en) * | 2013-10-12 | 2014-01-22 | 赵炳燚 | Power consumption control circuit |
| JP2014013143A (en) * | 2013-10-24 | 2014-01-23 | Daikin Ind Ltd | Air conditioner |
| CN204478392U (en) * | 2014-12-26 | 2015-07-15 | 广东美的制冷设备有限公司 | Current loop communication circuit and air-conditioner |
-
2014
- 2014-12-26 CN CN201410841157.7A patent/CN104596049B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0354523A2 (en) * | 1988-08-11 | 1990-02-14 | GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. | Remote control for an electronic apparatus with switching power supply |
| CN2824103Y (en) * | 2005-02-03 | 2006-10-04 | 王筱果 | Domestic electrical appliance standy power supply controller |
| CN2901458Y (en) * | 2005-12-15 | 2007-05-16 | 广东美的电器股份有限公司 | Current ring serial synchronous full duplex communication system for frequency changing air conditioner |
| CN202758190U (en) * | 2012-05-31 | 2013-02-27 | 苏州路之遥科技股份有限公司 | Non-isolated standby zero power consumption circuit |
| CN102878651A (en) * | 2012-10-16 | 2013-01-16 | 四川长虹电器股份有限公司 | Intelligent inverter air conditioner with low standby power |
| CN202975669U (en) * | 2012-12-07 | 2013-06-05 | 海信科龙电器股份有限公司 | Low standby power-consumption control circuit |
| CN103529722A (en) * | 2013-10-12 | 2014-01-22 | 赵炳燚 | Power consumption control circuit |
| JP2014013143A (en) * | 2013-10-24 | 2014-01-23 | Daikin Ind Ltd | Air conditioner |
| CN204478392U (en) * | 2014-12-26 | 2015-07-15 | 广东美的制冷设备有限公司 | Current loop communication circuit and air-conditioner |
Non-Patent Citations (1)
| Title |
|---|
| 樊建海: "一种能够降低空调待机功耗的电源控制电路", 《现代电子技术》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990197A (en) * | 2015-05-13 | 2015-10-21 | 广东美的制冷设备有限公司 | Air conditioner, outdoor unit and power supply control system thereof |
| CN104990197B (en) * | 2015-05-13 | 2017-10-31 | 广东美的制冷设备有限公司 | Air conditioner, outdoor unit and its electric power supply control system |
| CN105352129A (en) * | 2015-11-28 | 2016-02-24 | 安徽朗格暖通设备有限公司 | Current feedback circuit and air conditioner |
| CN105972768A (en) * | 2016-05-26 | 2016-09-28 | 广东美的制冷设备有限公司 | Electric current loop communication control circuit and method of air conditioner |
| CN105972768B (en) * | 2016-05-26 | 2019-01-22 | 广东美的制冷设备有限公司 | A kind of the electric current loop communication control circuit and method of air conditioner |
| CN107547109A (en) * | 2017-08-04 | 2018-01-05 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| CN107547109B (en) * | 2017-08-04 | 2021-05-25 | 广东美的制冷设备有限公司 | Air conditioner current loop communication circuit and air conditioner |
| US11378294B2 (en) | 2017-08-04 | 2022-07-05 | Gd Midea Air-Conditioning Equipment Co., Ltd. | Air conditioner current loop communication circuit and air conditioner |
| CN113945002A (en) * | 2020-07-17 | 2022-01-18 | 海信（山东）空调有限公司 | Communication conversion circuit and air conditioner |
| CN113945002B (en) * | 2020-07-17 | 2023-07-14 | 海信空调有限公司 | Communication conversion circuit and air conditioner |
| CN112833520A (en) * | 2021-01-19 | 2021-05-25 | 海信（广东）空调有限公司 | Control device, air conditioner controller, air conditioner and control method thereof |
| CN112833520B (en) * | 2021-01-19 | 2022-02-22 | 海信（广东）空调有限公司 | Control device, air conditioner controller, air conditioner and control method thereof |
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| CN104596049B (en) | 2017-05-31 |
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