CN113669879B - Multi-split air conditioner control circuit, electric control device and air conditioner - Google Patents
Multi-split air conditioner control circuit, electric control device and air conditioner Download PDFInfo
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- CN113669879B CN113669879B CN202111019328.4A CN202111019328A CN113669879B CN 113669879 B CN113669879 B CN 113669879B CN 202111019328 A CN202111019328 A CN 202111019328A CN 113669879 B CN113669879 B CN 113669879B
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F11/89—Arrangement or mounting of control or safety devices
Abstract
The invention discloses a control circuit of a multi-split air conditioner, an electric control device and an air conditioner, and relates to the technical field of air conditioners. The multi-split air conditioner control circuit is applied to the outdoor unit of the multi-split air conditioner and comprises: the power supply input end is used for connecting a first power supply; the wake-up circuit is used for providing a second power supply for the controller when receiving a working signal sent by an indoor unit of the multi-split air conditioner; and the controller is used for controlling the first switch to be switched from an open state to a closed state when receiving the working signal and the second power supply so as to receive the first power supply. According to the invention, the switch is arranged between the controller in the outdoor unit and the first power supply serving as the working power supply, the controller judges the running state required by the outdoor unit according to the working signals sent by the indoor units so as to control the power-on or power-off of the controller, so that the outdoor unit is switched between the low power consumption mode and the working mode, the low power consumption mode is configured for the outdoor unit in the multi-split air conditioner, and the power consumption of the outdoor unit is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control circuit of a multi-split air conditioner, an electric control device and an air conditioner.
Background
At present, an air conditioner is often configured with a low power consumption mode in order to save energy efficiency, and when an indoor unit is in a standby state, an outdoor unit is powered off and enters a standby state. However, this mode cannot be applied to a multi-split air conditioning system, and when an outdoor unit drags a plurality of indoor units, power supply of the outdoor unit cannot be controlled individually according to an operation state of a single indoor unit, so in the multi-split air conditioning system, the outdoor unit is often always in a power-on state, which results in increased energy consumption.
Disclosure of Invention
The invention mainly aims to provide a control circuit of a multi-split air conditioner, an electric control device and an air conditioner, and aims to solve the technical problem that in the prior art, the energy consumption of an outdoor unit of the multi-split air conditioner is high.
In order to achieve the above object, the present invention provides a multi-split air conditioner control circuit applied to an outdoor unit of a multi-split air conditioner, the multi-split air conditioner control circuit comprising: the power supply comprises a power supply input end, a wake-up circuit, a controller and a first switch; the controller is respectively connected with the power input end and the wake-up circuit, and the first switch is arranged between the controller and the power input end;
the power supply input end is used for accessing a first power supply;
the wake-up circuit is used for providing a second power supply for the controller when receiving a working signal sent by an indoor unit of the multi-split air conditioner; and the number of the first and second groups,
and the controller is used for controlling the first switch to be switched from an open state to a closed state when receiving the working signal and the second power supply so as to receive the first power supply.
Optionally, the wake-up circuit includes a power input circuit and a power output circuit connected to each other, and the power input circuit is connected to the power supply circuit of the indoor unit;
the power supply circuit is used for providing a third power supply to supply power to the indoor unit when the power supply circuit is in a power supply state;
the power supply input circuit is used for taking a third power supply as a working signal when the third power supply provided by the power supply circuit is detected; and (c) a second step of,
and the power output circuit is used for converting the third power into the second power and transmitting the second power to the controller.
Optionally, the wake-up circuit further includes a second switch, and the second switch is disposed between the power output circuit and the controller;
and the controller is also used for controlling the second switch to be switched from the closed state to the open state when receiving the first power supply.
Optionally, the multi-split air conditioner control circuit further includes a sampling circuit, and the sampling circuit is connected to the power supply circuit and the controller respectively;
and the sampling circuit is used for acquiring a voltage signal corresponding to the third power supply and transmitting the voltage signal to the controller as a working signal.
Optionally, the multi-split air conditioner control circuit further includes a power circuit, and the power circuit is disposed between the first switch and the controller;
and the power supply circuit is used for converting the first power supply into a fourth power supply matched with the controller and transmitting the fourth power supply to the controller.
Optionally, the multi-split air conditioner control circuit further includes a load power supply circuit, and the load power supply circuit is connected to the power supply circuit;
the power supply circuit is also used for converting the first power supply into a fifth power supply matched with the load of the outdoor unit and transmitting the fifth power supply to the load power supply circuit;
and the load power supply circuit is used for driving the load according to the fifth power supply.
Optionally, the controller is further configured to control the first switch to switch from the closed state to the open state when the working signal is not received.
Optionally, the first switch is a relay, a control end of the relay is connected with a control end of the controller, a first contact of the relay is connected with a power input end, and a second contact of the relay is connected with a power supply end of the controller.
In order to achieve the above object, the present invention further provides an electric control device, which includes the multiple on-line air conditioner control circuit.
In order to achieve the above object, the present invention further provides an air conditioner, which includes the above electric control device; or the multi-split air conditioner control circuit is included.
In the invention, a power input end, a wake-up circuit 20, a controller and a first switch are arranged on an outdoor unit of the multi-split air conditioner to form a multi-split air conditioner control circuit. The controller is respectively connected with the power input end and the wake-up circuit, and the first switch is arranged between the controller and the power input end; the power supply input end is used for connecting a first power supply; the wake-up circuit is used for providing a second power supply for the controller when receiving a working signal sent by an indoor unit of the multi-split air conditioner; and the controller is used for controlling the first switch to be switched from the open state to the closed state when receiving the working signal and the second power supply so as to receive the first power supply. According to the invention, the switch is arranged between the controller in the outdoor unit and the first power supply serving as the working power supply, the controller judges the running state required by the outdoor unit according to the working signals sent by the indoor units so as to control the power-on or power-off of the controller, so that the outdoor unit is switched between the low power consumption mode and the working mode, the low power consumption mode is configured for the outdoor unit in the multi-split air conditioner, and the power consumption of the outdoor unit is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a control circuit of a multi-split air conditioner according to a first embodiment of the invention;
fig. 2 is a schematic structural view of an embodiment of a multi-split air conditioner according to the present invention;
FIG. 3 is a schematic structural diagram of a control circuit of a multi-split air conditioner according to a second embodiment of the present invention;
fig. 4 is a schematic circuit diagram of a wake-up circuit according to an embodiment of the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name(s) | |
| 10 | |
80 | |
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| 20 | Wake- |
90 | Load |
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| 201 | Discharge circuit | R1～R3 | First to |
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| 202 | Direct current power supply | C1～C3 | First to |
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| 203 | Control signal | L1 | |
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| 30 | | B | Rectifier | |
| 40 | First switch | T | |
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| 50 | Outdoor machine | K | |
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| 60 | Indoor machine | IC | |
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| 70 | Sampling circuit |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a control circuit of a multi-split air conditioner according to a first embodiment of the present invention.
In the first embodiment, the multi-split air conditioner control circuit is applied to the outdoor unit 50 of the multi-split air conditioner, and includes: a power input terminal 10, a wake-up circuit 20, a controller 30 and a first switch 40; the controller 30 is connected to the power input terminal 10 and the wake-up circuit 20, respectively, and the first switch 40 is disposed between the controller 30 and the power input terminal 10.
And a power input terminal 10 for connecting to a first power supply.
And a wake-up circuit 20 for supplying a second power to the controller 30 when receiving an operation signal transmitted from the indoor unit 60 of the multi-split air conditioner.
And the controller 30 is used for controlling the first switch 40 to be switched from the open state to the closed state to receive the first power supply when receiving the working signal and the second power supply.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a multi-split air conditioner according to the present invention. The multi-split air conditioner is an air conditioning system in which one outdoor unit 50 drives a plurality of indoor units 60, and the refrigerant output from the outdoor unit 50 is respectively delivered to the indoor units 60 through a flow dividing element, so that the indoor units 60 perform a heat exchange operation. Generally, the outdoor unit 50 and each indoor unit 60 are provided with an independent power supply to supply power to the driver and load inside the outdoor unit 50 or each indoor unit 60. When each indoor unit 60 is in the non-operating mode, the corresponding independent power supply is disconnected, so that each internal load is in a power-down state, and the whole unit is in a low power consumption mode, so as to save energy.
It should be understood that the multi-split air conditioner control circuit in the present embodiment is disposed inside the outdoor unit 50, the controller 30 refers to a controller inside the outdoor unit 50, and the controller 30 may be combined with a corresponding driving circuit to form a driver for driving a load; the load may include devices such as a compressor, a fan, an electronic expansion valve, etc., among others. The driving circuits corresponding to the various loads have mature circuit structures, and the detailed description of the embodiment is omitted here.
The first power supply is an independent power supply disposed in the outdoor unit 50, and may be a power supply provided by a power adapter or the like or commercial power, and when the outdoor unit 50 is in an operation mode, each internal unit is powered by the first power supply. In the present embodiment, a low power consumption mode is configured on the outdoor unit 50, the first switch 40 is disposed between the controller 30 and the power input terminal 10, when the outdoor unit 50 is in the working mode, the first switch 40 is in the closed state, the controller 30 can receive the first power, when the outdoor unit 50 is in the low power consumption mode, the first switch 40 is in the open state, the controller 30 cannot receive the first power, and thus the corresponding control logic cannot be executed, and the outdoor unit 50 is in the low power consumption mode. The state of the first switch 40 can be controlled by the controller 30, and of course, the first switch 40 can also be provided with an interactive component to facilitate the user to switch the working state of the outdoor unit 50.
The present embodiment is described mainly by taking the automatic control of the outdoor unit 50 as an example, and in concrete implementation, the controller 30 needs to control the state of the first switch 40 according to the operation state of the indoor unit 60. In order to ensure the normal operation of the indoor units 60, when there is a demand for cooling capacity or heating capacity in the indoor units 60, the outdoor unit 50 needs to provide the corresponding cooling capacity or heating capacity. Therefore, the outdoor unit 50 can enter the low power consumption mode only when there is no demand for cooling capacity or heating capacity in the indoor units 60.
In this embodiment, the working signal may be used to determine whether the indoor unit 60 is in the working mode, whether there is a demand for cooling capacity or heating capacity, that is, whether the outdoor unit 50 needs to enter the working mode. If the outdoor unit 50 receives the working signal, it is determined that the working mode needs to be entered to provide the corresponding cooling capacity or heating capacity to the indoor unit 60; if not, the working mode needs to be entered. The outdoor unit 50 enters the working mode, in which the compressor and other devices are powered on to operate, and the refrigerant is transmitted to the indoor unit 60 to perform cooling or heating operations.
In a specific implementation, each indoor unit 60 can communicate with the outdoor unit 50, each indoor unit 60 transmits an operation signal to the outdoor unit 50 when entering the operation mode, and the wake-up circuit 20 receives the operation signal transmitted by any indoor unit 60 and provides the second power supply to the controller 30.
It should be noted that, when the outdoor unit 50 is in the low power consumption mode, the controller 30 cannot receive the first power, and in order to enable the controller 30 to operate normally, the wake-up circuit 20 provides the second power to the controller 30 as a wake-up power, so that the controller 30 is powered on. In a specific implementation, the wake-up circuit 20 may be provided with a built-in power supply, and when receiving the working signal, convert the built-in power supply into a second power supply for output; alternatively, the wake-up circuit 20 may be connected to an external power source, and convert the external power source into a second power source for outputting when receiving the operation signal.
In addition, the controller 30 also needs to receive the operation signal in order to determine the operation state of the indoor unit 60. If the outdoor unit is in the low power consumption mode, the second power supply is used as a working power supply to enable the controller 30 to normally operate, and at this time, if the controller 30 receives a working signal, the first switch 40 is controlled to be switched from the open state to the closed state to receive the first power supply and recover normal power supply, so that the outdoor unit 50 is awakened from the low power consumption mode and enters the working mode.
In the present embodiment, the controller 30 is further configured to control the first switch 40 to switch from the closed state to the open state when the operating signal is not received.
It should be noted that when the indoor unit 60 is in the operation mode, the operation signal is continuously transmitted to the outdoor unit 50, and the presence or absence of the operation signal can indicate whether the indoor unit 60 is in the operation mode. For example, the control unit in the indoor unit 60 detects its own operation state in real time, generates an operation signal when its own operation state is in the operation mode, and transmits the signal to the outdoor unit 50. When receiving the operation signal, the signal receiving unit of the outdoor unit 50 transmits the operation signal to the wake-up circuit 20 and the controller 30. Therefore, when the outdoor unit 50 is in the operation mode, if the controller 30 does not receive any operation signal transmitted by any indoor unit 60, it indicates that all the indoor units 60 are not in the operation mode, and the outdoor unit 50 does not need to provide the corresponding cooling capacity or heating capacity, at this time, the controller 30 may control the first switch to switch from the closed state to the open state, so as to enable the outdoor unit 50 to enter the low power consumption mode.
In a specific implementation, the first switch 40 may be a relay, a control terminal of the relay is connected to a control terminal of the controller 30, a second contact of the relay is connected to the power input terminal 10, and a first contact of the relay is connected to a power supply terminal of the controller 30.
It will be appreciated that the control terminal of the relay may be a connection terminal of the relay coil, the first and second contacts of the relay being closed when the relay coil is energized and open when the relay coil is not energized. The first switch 40 is a normally open switch, and the control terminal of the controller 30 is configured to output a control power, and when the controller 30 receives the operation signal and the second power, the control power is output to energize the relay coil, so as to open a loop between the power input terminal 10 and the power supply terminal of the controller 30 to receive the first power. Of course, the first switch 40 may also adopt other types of switching devices, and the present embodiment is not limited thereto.
In the first embodiment, the multiple on-line air conditioner control circuit is configured by providing the power input terminal 10, the wake-up circuit 20, the controller 30, and the first switch 40 on the outdoor unit 50 of the multiple on-line air conditioner. Wherein, the power input end 10 is connected with a first power supply; the wake-up circuit 20 provides a second power supply to the controller 30 when receiving a working signal transmitted from the indoor unit 60 of the multi-split air conditioner; the controller 30 controls the first switch 40 to be switched from the open state to the closed state to receive the first power supply when receiving the operation signal and the second power supply. In the present embodiment, the switch is provided between the controller 30 in the outdoor unit 50 and the first power source as the operating power source, and the controller 30 determines the operation state required by the outdoor unit 50 according to the operating signal sent by each indoor unit 60 to control the power-on or power-off of the controller 30 itself, so that the outdoor unit 50 is switched between the low power consumption mode and the operating mode, and thus the low power consumption mode is configured for the outdoor unit 50 in the multi-split air conditioner, and the power consumption of the outdoor unit 50 is reduced.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a control circuit of a multi-split air conditioner according to a second embodiment of the present invention. Based on the first embodiment described above. The invention provides a second embodiment of a multi-split air conditioner control circuit.
In the second embodiment, the wake-up circuit 20 includes a power input circuit 201 and a power output circuit 202 connected to each other, and the power input circuit 201 is connected to the power supply circuit of the indoor unit 60.
And the power supply circuit is used for providing a third power supply to supply power to the indoor unit 60 when the power supply circuit is in a power supply state.
The power input circuit 201 is configured to use the third power as the working signal when detecting the third power provided by the power supply circuit.
And a power output circuit 202 for converting the third power into the second power and transmitting the second power to the controller 30.
In order to facilitate detection of the operation state of each indoor unit 60 and control of the operation state of the outdoor unit 50, in the present embodiment, a third power supply, which is a power supply source of the indoor units 60, is used as an operation signal. The power supply circuit is configured to convert the independent power supply corresponding to each indoor unit 60 into a power supply to drive a load in each indoor unit 60 to operate, and the third power supply may be the power supply.
It is understood that if the load in the indoor unit 60 is in the power-on state, it indicates that the indoor unit 60 is in the working mode, i.e. has the corresponding cooling capacity or heating capacity requirement. Therefore, the operation state of the indoor unit 60 can be determined by determining whether or not the power supply circuit of the indoor unit supplies power. The power supply circuit has a mature circuit structure, and the detailed description of the embodiment is omitted.
In a concrete implementation, the power supply circuit of each indoor unit 60 is further connected to the power input circuit 201 in the outdoor unit 50, and when the power supply circuit supplies power to the load in the indoor unit 60, the power supply circuit simultaneously supplies the third power to the power input circuit 201, and when the power supply circuit stops supplying power to the load in the indoor unit 60, the power supply circuit also simultaneously stops supplying the third power to the power input circuit 201.
Since the third power supply is actually a power supply for the load in the indoor unit 60, the amplitude of the third power supply is usually high, and in order to avoid damage to the controller 30, it is necessary to perform processing such as voltage reduction; typically the third power supply may be 12V or 24V and the third power supply may be 3V or 5V. Since the third power supply is usually ac power and the second power supply is usually dc power, the power supply output circuit 202 also needs to rectify the third power supply.
In this embodiment, the third power supply is also simultaneously converted to the second power supply to serve as a wake-up power supply for the controller 30. The power supply of the indoor unit 60 is multiplexed, so that the accuracy of detecting the state of the indoor unit is improved, the wake-up circuit 20 is simplified, and the implementation is easier.
In the present embodiment, the wake-up circuit 20 further includes a second switch 203, the second switch 203 is disposed between the power output circuit 202 and the controller 30; the controller 30 is further configured to control the second switch 203 to switch from the closed state to the open state when receiving the first power source.
It is understood that the controller 30 can operate normally after receiving the first power, and at this time, the wake-up power is no longer needed, and the controller 30 can no longer receive the second power by cutting off the loop between the power output circuit 202 and the controller 30, thereby further saving energy. In a specific implementation, the second switch 203 is a normally closed switch, and may be a relay. The controller 30 applies a current to the relay coil of the second switch 203 upon receiving the first power supply, thereby switching the second switch 203 from the closed state to the open state; when the controller 30 receives the first power supply, the current on the relay coil of the second switch 203 disappears, and the second switch 203 returns to the closed state. Of course, other types of switches may be used for the second switch 203, and this embodiment is not limited thereto.
Referring to fig. 4, fig. 4 is a schematic circuit diagram of a wake-up circuit according to an embodiment of the present invention. As an example, the present embodiment also proposes a circuit schematic diagram of the wake-up circuit 20. The power input circuit 201 includes a first resistor R1, a second resistor, a first capacitor C1, a second capacitor C2, and a rectifier B. The first input end of the rectifier B is respectively connected with the first end of the first resistor R1 and the first end of the first capacitor C1, the second end of the first capacitor C1 is connected with the second input end of the rectifier B, and the first input end and the second input end of the rectifier B are used for connecting an alternating current power supply. The first output end of the rectifier B is connected to the first end of the second resistor R2 and the first end of the second capacitor C2, respectively, the second end of the second capacitor C2 is connected to the second output end of the rectifier B, the second output end of the rectifier B is grounded, and the second end of the second resistor R2 is connected to the power output circuit 202. The power input circuit 201 is used for receiving an ac current, rectifying the ac current, and transmitting a dc power to the power output circuit 202.
The power output circuit 202 includes a power chip IC, a first inductor L1, a third capacitor C3, a third resistor R3, and a zener diode T. The second switch 203 comprises an electronic switch K, the control terminal of which is connected to the controller 30. The input end of the power chip IC is connected with the second end of the second resistor, the output end of the power chip IC is respectively connected with the first end of the first inductor L1 and the cathode of the voltage stabilizing diode T, the second end of the first inductor L1 is respectively connected with the first end of the third resistor R3, the first end of the third capacitor C3 and the first end of the electronic switch K, and the anode of the voltage stabilizing diode T, the second end of the third resistor R3 and the second end of the third capacitor C3 are all grounded. The power chip IC is used for converting the voltage of an input direct-current power supply and outputting the voltage through a filter circuit consisting of the first inductor, the third capacitor and the third resistor. Of course, the wake-up circuit 20 is other circuits for realizing similar functions, and the present embodiment is not limited thereto.
The power chip IC may also communicate with the controller 30, and the controller 30 transmits a shutdown signal to the power chip IC after receiving the first power, and the power chip IC stops outputting the power after receiving the shutdown signal. In this case, the wake-up circuit 20 may not be provided with the second switch 203, and may be automatically turned off.
In addition, in order to further avoid the damage of the controller 30, the multi-split air conditioner control circuit further comprises a sampling circuit 70, and the sampling circuit 70 is respectively connected with the power supply circuit and the controller 30; and the sampling circuit 70 is configured to obtain a voltage signal corresponding to the third power supply, and transmit the voltage signal to the controller 30 as an operating signal.
Since the third power supply has a high voltage and is an alternating current, when the third power supply is directly input to a port of the controller 30, the controller 30 is easily damaged. Therefore, the sampling circuit 70 may sample the third power supply to obtain the dc power supply, and then perform voltage reduction or the like on the dc power supply, or output a voltage signal with a lower voltage to the controller 30. In a specific implementation, since the power input circuit 201 performs rectification processing on the third power, the sampling circuit 70 may further obtain a voltage signal from the output terminal of the power input circuit 201.
It can be understood that the controller 30 can determine the operating state of the indoor unit 60 according to the voltage value of the voltage signal, and if the voltage value of the voltage signal is lower, it indicates that the indoor unit 60 is in the standby state; otherwise, the internal unit 60 is in the working state.
In the present embodiment, the power supply to the outdoor unit 50 is managed for convenience. The multi-split air conditioner control circuit further comprises a power circuit 80, wherein the power circuit 80 is arranged between the first switch 40 and the controller 30; the power circuit 80 converts the first power into a fourth power adapted to the controller 30 and transmits the fourth power to the controller 30.
It will be appreciated that the first power supply may be the power supply provided by a power adapter or the like or mains supply, which is typically 120V or 240V, and the required supply voltage for the controller is low, and therefore requires adjustment of the first power supply before it is transmitted to the controller 30. The specific voltage of the fourth power supply is determined according to specific parameters of the controller 30, and if the rated voltage of the controller 30 is 5V, the voltage value of the fourth power supply is 5V; if the rated voltage of the controller 30 is 8V, the voltage value of the fourth power supply is 8V. The power circuit 80 may be formed by a power management chip, and a specific circuit structure thereof has a mature technology, which is not described in detail in this embodiment.
In addition, the multi-split air conditioner control circuit further comprises a load power supply circuit 90, and the load power supply circuit 90 is connected with the power supply circuit 80; a power supply circuit 80 for converting the first power into a fifth power adapted to the load of the outdoor unit 50 and transmitting the fifth power to the load power supply circuit 90; and a load power supply circuit 90 for driving the load according to the fifth power supply.
It can be understood that the first power supply supplies power to the entire outdoor unit 50, and after the outdoor unit 50 wakes up from the low power consumption mode, various loads inside the indoor unit 50 need to be powered on to operate. Therefore, the power supply circuit 80 needs to provide power for various loads in addition to the controller 30. In a specific implementation, the fifth power supply may include a plurality of power supplies with different voltages, which are used for supplying power to the load, and the specific voltage value is determined according to the rated voltage of the load; for example, the fifth power supply may include 12V, 24V, etc. The circuit structure of the load power supply circuit 90 is also well-established in the art, and the detailed description of the present embodiment is omitted here
In the second embodiment, the wake-up circuit 20 includes a power input circuit 201 and a power output circuit 202 connected to the power supply circuit of the indoor unit 60. When the power input circuit 201 detects the third power provided by the power supply circuit, the third power is used as the working signal. The power output circuit 202 converts the third power into the second power and transmits the second power to the controller 30. In the present embodiment, the power supply of the indoor unit 60 is multiplexed, and the power supply is used as a working signal, and if the power input circuit 201 receives the power supply, it indicates that the indoor unit 60 is in a working module, and the outdoor unit 50 also needs to enter a working mode; and at the same time, the third power is converted to obtain the second power, and the second power is used as the driving power of the controller 30, so that the controller 30 can normally operate, and the outdoor unit 50 is awakened from the low power consumption module.
In order to achieve the above object, the present invention further provides an electric control device, which includes the multiple on-line air conditioner control circuit. The specific structure of the control circuit of the multi-split air conditioner refers to the above embodiments, and since the electric control device can adopt the technical solutions of all the above embodiments, the electric control device at least has the beneficial effects brought by the technical solutions of the above embodiments, and no further description is given here.
In order to achieve the above object, the present invention further provides an air conditioner, which includes the above electric control device; or the multi-split air conditioner control circuit is included. The specific structure of the electric control device or the control circuit of the multi-split air conditioner refers to the above embodiments, and the air conditioner can adopt the technical schemes of all the above embodiments, so that the electric control device or the control circuit of the multi-split air conditioner at least has the beneficial effects brought by the technical schemes of the above embodiments, and is not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (9)
1. The utility model provides a multi-split air conditioner control circuit which characterized in that, is applied to multi-split air conditioner's off-premises station, multi-split air conditioner control circuit includes: the power supply comprises a power supply input end, a wake-up circuit, a controller and a first switch; the controller is respectively connected with the power supply input end and the wake-up circuit, and the first switch is arranged between the controller and the power supply input end;
the power supply input end is used for connecting a first power supply;
the wake-up circuit is used for providing a second power supply for the controller when receiving a working signal sent by the indoor unit of the multi-split air conditioner; and the number of the first and second groups,
the controller is used for controlling the first switch to be switched from an open state to a closed state to receive the first power supply when the working signal and the second power supply are received;
the wake-up circuit comprises a power input circuit and a power output circuit which are connected with each other, and the power input circuit is connected with a power supply circuit of the indoor unit;
the power supply circuit is used for providing a third power supply to supply power to the indoor unit when the indoor unit is in a power supply state;
the power supply input circuit is used for taking a third power supply as a working signal when the third power supply provided by the power supply circuit is detected; and the number of the first and second groups,
the power output circuit is used for converting the third power into the second power and transmitting the second power to the controller.
2. The multi-split air conditioner control circuit as claimed in claim 1, wherein the wake-up circuit further comprises a second switch, the second switch being disposed between the power output circuit and the controller; and the number of the first and second groups,
the controller is further configured to control the second switch to switch from a closed state to an open state when receiving the first power supply.
3. The multi-split air conditioner control circuit as claimed in claim 1, further comprising a sampling circuit, wherein the sampling circuit is connected to the power supply circuit and the controller, respectively; and the number of the first and second groups,
and the sampling circuit is used for acquiring a voltage signal corresponding to the third power supply and transmitting the voltage signal to the controller as a working signal.
4. The multi-split air conditioner control circuit as claimed in any one of claims 1 to 3, further comprising a power circuit disposed between the first switch and the controller; and the number of the first and second groups,
the power supply circuit is used for converting the first power supply into a fourth power supply which is adaptive to the controller and transmitting the fourth power supply to the controller.
5. The multi-split air conditioner control circuit as claimed in claim 4, further comprising a load power supply circuit connected to the power circuit;
the power supply circuit is further configured to convert the first power supply into a fifth power supply adapted to a load of the outdoor unit, and transmit the fifth power supply to the load power supply circuit; and the number of the first and second groups,
and the load power supply circuit is used for driving the load according to the fifth power supply.
6. The multi-split air conditioner control circuit as claimed in any one of claims 1 to 3, wherein the controller is further configured to control the first switch to be switched from a closed state to an open state when the operation signal is not received.
7. The multi-split air conditioner control circuit as claimed in any one of claims 1 to 3, wherein the first switch is a relay, a control terminal of the relay is connected to a control terminal of the controller, a first contact of the relay is connected to the power input terminal, and a second contact of the relay is connected to a power supply terminal of the controller.
8. An electric control device, characterized in that the electric control device comprises the multi-split air conditioner control circuit as defined in any one of claims 1 to 7.
9. An air conditioner characterized in that it comprises an electric control device according to claim 8; or, the multi-split air conditioner control circuit as claimed in any one of claims 1 to 7 is included.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019328.4A CN113669879B (en) | 2021-08-31 | 2021-08-31 | Multi-split air conditioner control circuit, electric control device and air conditioner |
| PCT/CN2022/102758 WO2023029713A1 (en) | 2021-08-31 | 2022-06-30 | Multi-split air conditioner control circuit, electrically controlled device, and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019328.4A CN113669879B (en) | 2021-08-31 | 2021-08-31 | Multi-split air conditioner control circuit, electric control device and air conditioner |
Publications (2)
| Publication Number | Publication Date |
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| CN113669879A CN113669879A (en) | 2021-11-19 |
| CN113669879B true CN113669879B (en) | 2022-09-09 |
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| CN202111019328.4A Active CN113669879B (en) | 2021-08-31 | 2021-08-31 | Multi-split air conditioner control circuit, electric control device and air conditioner |
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| WO (1) | WO2023029713A1 (en) |
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| CN113669879B (en) * | 2021-08-31 | 2022-09-09 | 佛山市顺德区美的电子科技有限公司 | Multi-split air conditioner control circuit, electric control device and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066385A (en) * | 2015-08-25 | 2015-11-18 | 深圳创维空调科技有限公司 | Standby power consumption control system for outdoor unit of air conditioning chamber and outdoor unit |
| CN111365826A (en) * | 2020-04-21 | 2020-07-03 | 珠海拓芯科技有限公司 | Power supply system and air conditioner |
| CN111656104A (en) * | 2019-01-15 | 2020-09-11 | 海信（广东）空调有限公司 | Air conditioner outdoor unit and air conditioner |
| CN212204951U (en) * | 2020-04-21 | 2020-12-22 | 珠海拓芯科技有限公司 | Power supply system and air conditioner |
| CN112762525A (en) * | 2020-12-31 | 2021-05-07 | 佛山市顺德区美的电子科技有限公司 | Air condensing units control circuit, automatically controlled subassembly and air conditioner |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083716A (en) * | 2003-09-11 | 2005-03-31 | Matsushita Electric Ind Co Ltd | Multi-room type air conditioner |
| CN203443031U (en) * | 2013-08-13 | 2014-02-19 | Tcl空调器(中山)有限公司 | Low standby power consumption control circuit and air conditioner |
| CN108800484B (en) * | 2018-06-20 | 2020-07-03 | 广东美的制冷设备有限公司 | Air conditioner power control circuit, controller and air conditioner |
| CN111976415B (en) * | 2019-05-23 | 2022-02-11 | 广东美的制冷设备有限公司 | Outdoor unit electric control device and vehicle-mounted air conditioner |
| KR102142829B1 (en) * | 2020-03-20 | 2020-08-07 | (주)에이피 | Apparatus ofr waking up standby power using a power communication line in wired remote controller of fan coil unit, ventilator, or boiler |
| CN112902416B (en) * | 2020-12-24 | 2022-04-22 | 珠海格力电器股份有限公司 | Control device and method of air conditioner and air conditioner |
| CN113669879B (en) * | 2021-08-31 | 2022-09-09 | 佛山市顺德区美的电子科技有限公司 | Multi-split air conditioner control circuit, electric control device and air conditioner |
-
2021
- 2021-08-31 CN CN202111019328.4A patent/CN113669879B/en active Active
-
2022
- 2022-06-30 WO PCT/CN2022/102758 patent/WO2023029713A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066385A (en) * | 2015-08-25 | 2015-11-18 | 深圳创维空调科技有限公司 | Standby power consumption control system for outdoor unit of air conditioning chamber and outdoor unit |
| CN111656104A (en) * | 2019-01-15 | 2020-09-11 | 海信（广东）空调有限公司 | Air conditioner outdoor unit and air conditioner |
| CN111365826A (en) * | 2020-04-21 | 2020-07-03 | 珠海拓芯科技有限公司 | Power supply system and air conditioner |
| CN212204951U (en) * | 2020-04-21 | 2020-12-22 | 珠海拓芯科技有限公司 | Power supply system and air conditioner |
| CN112762525A (en) * | 2020-12-31 | 2021-05-07 | 佛山市顺德区美的电子科技有限公司 | Air condensing units control circuit, automatically controlled subassembly and air conditioner |
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| Publication number | Publication date |
|---|---|
| WO2023029713A1 (en) | 2023-03-09 |
| CN113669879A (en) | 2021-11-19 |
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