CN212204951U - Power supply system and air conditioner - Google Patents

Power supply system and air conditioner Download PDF

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Publication number
CN212204951U
CN212204951U CN202020610678.2U CN202020610678U CN212204951U CN 212204951 U CN212204951 U CN 212204951U CN 202020610678 U CN202020610678 U CN 202020610678U CN 212204951 U CN212204951 U CN 212204951U
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China
Prior art keywords
module
switch
electrically connected
circuit
wake
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CN202020610678.2U
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Chinese (zh)
Inventor
刘亚洲
陈志强
易红艳
程建军
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Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric Co Ltd
Zhuhai Tuoxin Technology Co Ltd
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Abstract

The utility model provides a power supply system and air conditioner relates to supply circuit technical field. The inner machine of the system comprises a first power module, a first control module and a first switch module, the outer machine comprises a second power module, a second control module, a second communication circuit, a second switch module and a wake-up circuit, the first power module is respectively and electrically connected with the first switch module and the first control module, the first power module, the first switch module, the wake-up circuit, the second power module and the second control module are sequentially and electrically connected, the first control module, the first switch module, the second communication circuit and the wake-up circuit are sequentially and electrically connected, the second switch module is connected with the wake-up circuit in parallel, and the second switch module is electrically connected with the second control module. The utility model discloses only just awaken up outer machine when receiving the start instruction, otherwise interior machine return circuit and outer machine return circuit all are in the state of opening circuit, can effectively reduce the consumption of power supply system when the standby.

Description

Power supply system and air conditioner
Technical Field
The utility model relates to a supply circuit technical field particularly, relates to a power supply system and air conditioner.
Background
With the improvement of living standard of people, the utilization rate of the air conditioner is higher and higher, and the national energy efficiency standard is higher and higher, so the standby power consumption of the air conditioner is more and more concerned by people.
In the prior art, an air conditioner usually directly utilizes a communication line to directly lead alternating current from an indoor unit to an outdoor unit so as to wake up the outdoor unit; however, this causes the indoor and outdoor circuits of the air conditioner to be powered on even though the air conditioner is in a standby state, which results in high power consumption.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem how reduce the consumption when the standby and how to awaken up outer machine when needing the air conditioner during operation.
To solve the above problem, in a first aspect, an embodiment of the present invention provides a power supply system, the power supply system comprises an inner machine and an outer machine, the inner machine comprises a first power supply module, a first control module and a first switch module, the outdoor unit comprises a second power supply module, a second control module, a second communication circuit, a second switch module and a wake-up circuit, the first power supply module is electrically connected with the first switch module and the first control module respectively, the first power supply module, the first switch module, the wake-up circuit, the second power supply module and the second control module are electrically connected in sequence, the first control module, the first switch module, the second communication circuit and the wake-up circuit are electrically connected in sequence, the second switch module is connected with the wake-up circuit in parallel and is electrically connected with the second control module;
the first control module is used for generating a first control signal when receiving a starting-up instruction and transmitting the first control signal to the first switch module;
the first switch module is used for responding to the first control signal and switching to a first state so as to enable the first control module to be communicated with the second communication circuit and enable the first power supply module to be communicated with the wake-up circuit;
the first control module is further configured to generate a wake-up signal when receiving a power-on instruction, and transmit the wake-up signal to the wake-up circuit through the first switch module and the second communication circuit;
the wake-up circuit is used for responding to the wake-up signal and closing the wake-up circuit so that the first power supply module supplies power to the second control module through the second power supply module to wake up the second control module;
the second control module is used for controlling the second switch module to be closed after being awakened so as to enable the outdoor unit to normally work.
In the external machine power supply type power supply module, only when a power-on instruction is received, the control module controls the first switch switching module to be switched to the first state, so that the first control module is communicated with the second communication circuit and the first power supply module is communicated with the wake-up circuit, the generated wake-up signal is transmitted to the wake-up circuit through the first switch module and the second communication circuit to wake up the second control module, and meanwhile, the second control module controls the second switch module to be closed and controls the wake-up circuit to be opened after being awakened, so that the external machine normally works; at other moments, due to the existence of the switch module and the wake-up circuit, the first power module cannot be directly connected with the second power module and supplies power to the second control module, so that the inner machine loop and the outer machine loop are both in an open circuit state, and the power consumption of the power supply system in standby can be effectively reduced.
In an optional implementation manner, the internal unit further includes a first communication circuit, and the first power module, the first switch module, the first communication circuit, and the second communication circuit are electrically connected in sequence;
the first control module is further used for controlling the first switch module to be switched to a second state after the second control module is awakened so as to enable the first switch module to be communicated with the first communication circuit;
the second control module is also used for controlling the wake-up circuit to be disconnected after being awakened.
After the second control module is awakened, the first switch module is switched to the second state to enable the first switch module to be communicated with the first communication circuit, so that the indoor unit and the outdoor unit can normally communicate through the first communication circuit and the second communication circuit; meanwhile, the wake-up circuit can be switched off by controlling the wake-up circuit to be switched off, so that the influence of the wake-up circuit on the data transmission of the second communication circuit is avoided.
In an optional implementation manner, the internal unit further includes a voltage stabilizing circuit, one end of the voltage stabilizing circuit is electrically connected to the N-terminal of the first power supply module, and the other end of the voltage stabilizing circuit is electrically connected to the first switch module.
It can be understood that, by providing the voltage stabilizing circuit, the voltage between the N terminal of the first power module and the L terminal of the first power module can be effectively stabilized.
In an optional embodiment, the first switch module includes a single-pole double-throw switch, an active end of the single-pole double-throw switch is electrically connected between the wake-up circuit and the L end of the first power module, a first fixed end of the single-pole double-throw switch is electrically connected to the voltage stabilizing circuit, a second fixed end of the single-pole double-throw switch is electrically connected to the second communication circuit, and another end of the first communication circuit is electrically connected between the second fixed end of the single-pole double-throw switch and the second communication circuit; when the movable end of the single-pole double-throw switch is connected with the second fixed end, the first switch module is in a first state, and when the movable end of the single-pole double-throw switch is connected with the first fixed end, the first switch module is in a second state.
It will be appreciated that the functions associated with the first switch module can be effectively implemented by a single pole double throw switch.
In an optional implementation manner, the voltage stabilizing circuit includes a first voltage regulator tube, a first resistor, and a first capacitor, the first voltage regulator tube, the first resistor, and the first capacitor are connected in parallel, an anode of the first voltage regulator tube is electrically connected to an N-terminal of the first power module, and a cathode of the first voltage regulator tube is electrically connected between the first communication circuit and the first fixed terminal of the single-pole double-throw switch.
In an optional embodiment, the wake-up circuit includes a first switch tube, a second switch tube, a relay and a thermistor, the first switch module is electrically connected to a base of the first switch tube, a collector of the first switch tube is electrically connected to one end of the relay, an emitter of the first switch tube is electrically connected to an emitter of the second switch tube, an output of the second communication circuit is electrically connected to a base of the second switch tube, a collector of the second switch tube is electrically connected to the other end of the relay, and the first switch module is electrically connected to the second power module after being connected in series with the thermistor and a normally open contact of the relay;
the first switch tube is used for being conducted after the switch module is switched to a first state;
the first control module is used for transmitting the wake-up signal to the second switching tube through the second communication circuit;
the second switch tube is used for being conducted in response to the wake-up signal so as to electrify the relay;
the relay is used for controlling the normally open contact of the relay to be closed after being electrified, so that the first power module supplies power to the second control module through the second power module to wake up the second control module.
In an optional implementation manner, the wake-up circuit further includes a first diode, a second diode, a third diode, and a second capacitor, the first switch module is electrically connected to the base of the first switch tube after being connected in series with the anode and the cathode of the first diode, the first switch module is electrically connected to the normally open contact of the relay after being connected in series with the thermistor and the anode and the cathode of the third diode, the anode of the second diode is electrically connected between the thermistor and the first switch module, and the cathode of the second diode is electrically connected to the other end of the relay after being connected in series with the second capacitor.
It can be understood that the current of the relay loop can be prevented from flowing to the thermosensitive circuit by arranging the second diode; the third diode can prevent the voltage of the second power supply module from flowing backwards to the first power supply module.
In an optional embodiment, the wake-up circuit further includes a second voltage regulator tube and a third capacitor, an anode of the second voltage regulator tube is electrically connected to a collector of the second switch tube, a cathode of the second voltage regulator tube is electrically connected to the other end of the relay, and the third capacitor is connected in parallel to the second voltage regulator tube.
The voltage value output to the relay by the second switching tube can be effectively stabilized by arranging the second voltage-regulator tube and the third capacitor, so that the relay can be stably electrified; and meanwhile, the second voltage-regulator tube can also prevent the second switch tube from being damaged by large current when the distribution line is reversely connected.
In a second aspect, an embodiment of the present invention provides a power supply system, where the power supply system includes an inner unit and an outer unit, the inner unit includes a first power module, a first control module and a first switch module, the outer unit includes a second power module, a second control module, a second switch module and a thermistor, the first power module is electrically connected to the first switch module and the first control module respectively, the switch module, the thermistor and the second power module are electrically connected in sequence, and the second control module is electrically connected to the second power module and the second switch module respectively;
the first control module is used for generating a second control signal when receiving a starting-up instruction;
the first switch module is used for responding to the second control signal and switching to a second state, so that the first power supply module supplies power to the second control module through the thermistor and the second power supply module to wake up the second control module;
the second control module is also used for controlling the second switch module to be closed after being awakened so as to enable the outdoor unit to work normally.
In an internal power supply type power supply module, only when a power-on instruction is received, the control module controls the first switch switching module to switch to the second state, so that the first power supply module supplies power for the second control module through the thermistor and the second power supply module to wake up the second control module; after the second control module is awakened, the motor is driven to operate, so that the current on the circuit is increased, the circuit is heated, and the resistance value of the thermistor is gradually increased; in order to ensure that the external machine can normally operate, the second control module is also used for controlling the second switch module to be closed after being awakened, so that the first power supply module can continuously supply power to the second control module through the second power supply module, and the normal operation of the external machine is ensured; the method of waking up the external unit only when the power supply system is started can effectively reduce the power consumption of the power supply system in standby.
In a third aspect, an embodiment of the present invention provides an air conditioner, including the power supply system according to any one of the foregoing embodiments.
Drawings
Fig. 1 is a block diagram of a circuit structure of a power supply system according to a first embodiment of the present invention;
fig. 2 is a circuit diagram of a power supply system according to a first embodiment of the present invention;
fig. 3 is a block diagram of a circuit structure of a power supply system according to a second embodiment of the present invention;
fig. 4 is a circuit diagram of a power supply system according to a second embodiment of the present invention.
Icon: 10-a power supply system; 100-indoor machine; 110-a first control module; 120-a first power module; 130-a first switch module; 140-voltage stabilizing circuit; 150-a first communication circuit; 200-an outdoor unit; 210-a wake-up circuit; 220-second communication circuit; 230-a second power supply module; 240-a second control module; 250-a second switch module; PTC-thermistors; k1-single pole double throw switch; d4 — fourth diode; ZD 1-first voltage regulator tube; r1 — first resistance; c1 — first capacitance; q1-first switch tube; q2-second switch tube; RY 1-relay; d1 — first diode; d2 — second diode; d3 — third diode; c2 — second capacitance; z D2-a second voltage regulator tube; c3-third capacitance.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Because the requirement of users for the energy consumption of the air conditioner is higher and higher at present, the practice that a lot of unnecessary energy consumption exists in the prior art that alternating current is directly led from an indoor unit to an outdoor unit by directly utilizing a communication line needs to be improved. Therefore, the utility model aims at providing a power supply system and air conditioner that can practice thrift the energy consumption to satisfy user's demand.
First embodiment
Generally, the power supply mode of an air conditioner can be divided into an indoor unit power supply mode and an outdoor unit power supply mode, the main control panel of the air conditioner powered by the outdoor unit is arranged on the outdoor unit 200, the indoor unit 100 only comprises a simpler circuit board of the indoor unit 100, and the outdoor unit power supply mode mostly uses 380V three-phase power; and the main control panel of the air conditioner powered by the indoor unit is arranged on the indoor unit 100.
The embodiment of the utility model provides a power supply system 10 mainly is applied to the air conditioner of outer quick-witted power supply type. Fig. 1 is a block diagram of a circuit structure of a power supply system 10 according to an embodiment of the present invention. The power supply system 10 includes: the indoor unit 100 includes a first power module 120, a first control module 110, a first communication circuit 150, a voltage stabilizing circuit 140 and a first switch module 130, and the outdoor unit 200 includes a second power module 230, a second control module 240, a second communication circuit 220, a second switch module 250 and a wake-up circuit 210.
The first power module 120 is electrically connected to the first switch module 130 and the first control module 110, the first power module 120, the first switch module 130, the wake-up circuit 210, the second power module 230 and the second control module 240 are electrically connected in sequence, the first power module 120, the first switch module 130, the first communication circuit 150 and the second communication circuit 220 are electrically connected in sequence, the first control module 110, the first switch module 130, the second communication circuit 220 and the wake-up circuit 210 are electrically connected in sequence, the second switch module 250 is connected in parallel to the wake-up circuit 210, the second switch module 250 is electrically connected to the second control module 240, one end of the voltage regulator circuit 140 is electrically connected to the first power module 120, and the other end of the voltage regulator circuit 140 is electrically connected to the first switch module 130.
The first power module 120 is electrically connected to the first control module 110, and is configured to provide a working voltage to the first control module 110. In an alternative embodiment, the first power module 120 includes a power source, a rectifier bridge, and a transformer, which are electrically connected in sequence. The rectifier bridge is used for converting ac power input by the power supply into dc power, and the transformer is used for adjusting a voltage value output by the rectifier bridge to other modules (such as the first switch module 130, the first communication circuit 150, etc.).
It should be noted that the output terminal of the first power module 120 includes an N terminal and an L terminal.
The first switching module 130 is used to switch states under the control of the first control module 110. It should be noted that the first switch module 130 can include 3 states, which are a first state, a second state and a third state. Normally, when the power supply system 10 is in the standby state, the first switching module 130 is in the third state; when the power supply system 10 is in the operating mode, the first switching module 130 may be in the first state or the second state.
When the first switch module 130 is in the first state, a loop of the first power module 120, the first switch module 130 and the second communication circuit 220 is connected; when the first switch module 130 is in the second state, the first power module 120, the first communication circuit 150 and the second communication circuit 220 are connected; when the first switch module 130 is in the third state, the first switch module 130 is disconnected from the first communication circuit 150, and the first switch module 130 is disconnected from the second communication circuit 220.
Please refer to fig. 2, which is a circuit diagram of a power supply system 10 according to the present invention. As shown in fig. 2, the first switch module 130 includes a single-pole double-throw switch K1, the active end of the single-pole double-throw switch K1 is electrically connected between the wake-up circuit 210 and the L terminal of the first power module 120, the first fixed end of the single-pole double-throw switch K1 is electrically connected to the voltage stabilizing circuit 140, the second fixed end of the single-pole double-throw switch K1 is electrically connected to the second communication circuit 220, and the other end of the first communication circuit 150 is electrically connected between the second fixed end of the single-pole double-throw switch K1 and the second communication circuit 220.
Specifically, when the active end of the single-pole double-throw switch K1 is connected to the second fixed end, the first switch module 130 is in the first state; when the movable end of the single-pole double-throw switch K1 is connected to the first fixed end, the first switch module 130 is in the second state, and when the movable end of the single-pole double-throw switch K1 is floating (neither connected to the second fixed end nor to the first fixed end), the first switch module 130 is in the third state.
In an alternative embodiment, the first switch module 130 further includes a fourth diode D4, the second fixed end of the single-pole double-throw switch K1 is connected in series with the anode and the cathode of the fourth diode D4 and is electrically connected to the second communication circuit 220, and the other end of the first communication circuit 150 is electrically connected between the cathode of the fourth diode D4 and the second communication circuit 220.
It can be understood that when the active terminal of the spdt switch K1 is connected to the second fixed terminal, the L terminal of the first power module 120 is connected to the second communication circuit 220 to supply power to the second communication circuit 220, and the first control module 110 can transmit the generated wake-up signal to the wake-up circuit 210 through the second communication circuit 220.
One end of the voltage stabilizing circuit 140 is connected to the N-terminal of the first power module 120, and the other end of the voltage stabilizing circuit 140 is electrically connected to the first switch module 130. It is understood that when the first switch module 130 is in the second state, the other end of the voltage stabilizing circuit 140 is connected to the L terminal of the first power module 120.
Referring to fig. 2, the voltage regulator circuit 140 includes a first voltage regulator ZD1, a first resistor R1, and a first capacitor C1, the first voltage regulator ZD1, the first resistor R1, and the first capacitor C1 are connected in parallel, an anode of the first voltage regulator ZD1 is electrically connected to the N-terminal of the first power module 120, and a cathode of the first voltage regulator ZD1 is electrically connected between the first communication circuit 150 and a first fixed terminal of the single-pole double-throw switch K1.
It can be understood that, by providing the voltage stabilizing circuit 140, when the first switch module 130 is in the second state, it can be ensured that a voltage drop exists between the N terminal and the L terminal of the first switch module 130, and a short circuit problem caused by direct connection between the N terminal and the L terminal of the first switch module 130 is avoided.
The first communication circuit 150 is used for exchanging data between the indoor unit 100 and the outdoor unit 200. In an alternative embodiment, the indoor unit 100 further includes a fifth diode D5, an anode of the fifth diode D5 is electrically connected to the first communication circuit 150, and a cathode of the fifth diode D5 is electrically connected between the second communication circuit 220 and the second fixed terminal of the single-pole double-throw switch K1.
The first control module 110 is used for controlling the first switch module 130 to switch states. Specifically, the first control module 110 is configured to generate a first control signal when receiving a power-on command, where the first control signal is used to instruct the first switch module 130 to switch to the first state; the first control module 110 is further configured to control the first switch module 130 to switch to the second state after the second control module 240 is awakened; the first control module 110 is further configured to control the switch module to switch to the third state after the second control module 240 is awakened and if the operation data transmitted by the outdoor unit 200 is not received within the preset time.
It can be understood that, by controlling the first switch module 130 to switch to the first state, the electrical signal of the first power module 120 can be transmitted to the second communication circuit 220 and the wake-up circuit 210 through the first switch module 130, so that the first communication circuit 150 and the wake-up circuit 210 have a working power; by controlling the first switch module 130 to switch to the second state, the first communication circuit 150 and the second communication circuit 220 can perform normal communication; by controlling the first switch module 130 to switch to the third state, the loop of the indoor unit 100 can be disconnected, and the loop power consumption of the indoor unit 100 can be avoided.
In addition, the first control module 110 is further configured to generate a wake-up signal when receiving the power-on command, and transmit the wake-up signal to the wake-up circuit 210 through the first switch module 130 and the second communication circuit 220 after the first switch module 130 is switched to the first state, and at this time, since the fifth diode is reversely connected, the wake-up circuit 210 does not affect the first communication circuit 150.
The first control module 110 is further configured to control the first switch module 130 to switch to the third state when the operation data transmitted by the outdoor unit 200 is not received within a preset time.
If the first control module 110 does not receive the operation data transmitted by the outdoor unit 200 within the preset time, it indicates that the outdoor unit 200 has stopped working, and at this time, the first switch module 130 is controlled to switch to the third state to make the indoor unit 100 in the open-circuit state, so as to reduce the power consumption of the indoor unit 100 in standby.
The second communication circuit 220 is used for communicating with the first communication circuit 150 to exchange data between the indoor unit 100 and the outdoor unit 200. For example, the second communication circuit 220 may be used to transmit a wake-up signal generated by the first control module 110 to the wake-up circuit 210.
The wake-up circuit 210 is configured to close in response to a wake-up signal transmitted by the first control module 110 and to open under the control of the second control module 240 after the second control module 240 is woken up.
It is understood that when the wake-up circuit 210 is closed, the first power module 120 is in communication with the second power module 230, so that the first power module 120 supplies power to the second control module 240 through the second power module 230 to wake up the second control module 240.
After the second control module 240 is woken up, the wake-up circuit 210 does not perform operations such as data exchange, and at this time, maintaining the wake-up circuit 210 in the closed state may affect the second communication circuit 220 to perform data transmission, so that the wake-up circuit is turned off under the control of the second control module 240, and the data exchange may be prevented from being affected.
Referring to fig. 2, the wake-up circuit 210 includes a first switch tube Q1, a second switch tube Q2, a relay RY1 and a thermistor PTC, the first switch module 130 is electrically connected to a base of the first switch tube Q1, a collector of the first switch tube Q1 is electrically connected to one end of the relay RY1, an emitter of the first switch tube Q1 is electrically connected to an emitter of the second switch tube Q2, an output of the second communication circuit 220 is electrically connected to a base of the second switch tube Q2, a collector of the second switch tube Q2 is electrically connected to the other end of the relay RY1, and the first switch module 130 is electrically connected to the second power module 230 after being connected in series with the thermistor PTC and a normally open contact of the relay RY 1. The base of the second switch tube Q2 is configured to receive a wake-up signal transmitted by the second communication circuit 220, the second switch tube Q2 is configured to be turned on in response to the wake-up signal to power on the relay RY1, and the relay RY1 is configured to control the normally open contact of the relay RY1 to be closed after power is turned on, so that the first power module 120 supplies power to the second control module 240 through the second power module 230 to wake up the second control module 240.
In the embodiment shown in fig. 2, the first switch Q1 and the second switch Q2 are both triodes. In other embodiments, the first and second switching tubes may also adopt a switching device such as a thyristor, a relay, or a MOS tube.
It can be understood that, after the first switch module 130 is switched to the first state, the first power module 120 transmits an electrical signal to the second communication circuit 220 and the base of the first switch Q1 through the first switch module 130, and the first switch Q1 is turned on; after the base electrode of the second switching tube Q2 receives the wake-up signal, the second switching tube Q2 is also conducted, so that the first switching tube Q1, the second switching tube Q2 and the relay RY1 form a closed loop, the relay RY1 is electrified to control the normally open contact of the relay RY1 to be closed, and at the moment, the L end of the first power module 120 is connected to the second power module 230 through the thermistor PTC and the normally open contact of the relay RY 1.
In an optional embodiment, the wake-up circuit 210 further includes a first diode D1, a second diode D2, a third diode D3, and a second capacitor C2, the first switch module 130 is electrically connected to the base of the first switch Q1 after being connected in series with the anode and the cathode of the first diode D1, the first switch module 130 is electrically connected to the normally open contact of the relay RY1 after being connected in series with the thermistor PTC and the anode and the cathode of the third diode D3, the anode of the second diode D2 is electrically connected between the thermistor PTC and the first switch module 130, and the cathode of the second diode D2 is electrically connected to the other end of the relay RY1 after being connected in series with the second capacitor C2.
It can be understood that, since the first diode D1 is electrically connected to the second communication circuit 220 in the reverse direction, the signal inside the wake-up circuit 210 does not affect the normal operation of the second communication circuit 220; meanwhile, the second diode D2 is reversely connected to the L terminal of the first power module 120, so as to prevent the signal inside the wake-up circuit 210 from affecting the power signal; and by reversely connecting the third diode D3, the electric signal of the outdoor unit 200 can be effectively prevented from affecting the indoor unit 100 module.
In another optional embodiment, the wake-up circuit 210 further includes a second regulator ZD2 and a third capacitor C3, an anode of the second regulator ZD2 is electrically connected to a collector of the second switch Q2, a cathode of the second regulator ZD2 is electrically connected to the other end of the relay RY1, and the third capacitor C3 is connected in parallel with the second regulator ZD 2.
Understandably, by arranging the second voltage regulator tube ZD2 and the third capacitor C3, the voltage value output to the relay RY1 by the second switch tube Q2 can be effectively stabilized, so that the relay RY1 can be stably powered on; meanwhile, the second voltage regulator tube ZD2 can prevent the second switch tube Q2 from being damaged by large current when the distribution line is reversely connected.
After the second control module 240 is awakened, the first switch module 130 is switched to the second state so that the first switch module 130 is communicated with the first communication circuit 150, and thus the indoor unit 100 and the outdoor unit 200 can normally communicate through the first communication circuit 150 and the second communication circuit 220; meanwhile, the wake-up circuit 210 is turned off by controlling the wake-up circuit 210 to be turned off, so as to prevent the wake-up circuit 210 from affecting the second communication circuit 220 to perform data transmission.
The second control module 240 is used to control the second switch module 250 to close after being woken up.
It can be understood that after the second control module 240 is awakened, the operation of the rear-end motor needs to be controlled, which results in an increase in load of the external unit 200 and an increase in current on the line and heating of the line, and since the thermistor PTC is connected in series with the normally open contact of the relay RY1, the thermistor PTC will increase to infinity as the temperature gradually increases, and at this time, the current transmitted through the thermistor PTC is not enough to load the load of the external unit 200, and therefore, the second switch module 250 needs to be controlled to close again to ensure that the external unit 200 can obtain a sufficient current.
The second control module 240 is further configured to control the wake-up circuit 210 to turn off after being woken up.
The second control module 240 is further configured to control the second switch module 250 to open to stop transmitting the operation data to the first control module 110 when receiving the shutdown instruction. That is, when the external unit 200 does not need to operate, the second control module 240 directly controls the second switch module 250 to be turned off, so that the external unit 200 cannot operate normally when the second control module 240 is powered off, and low power consumption of the external unit 200 in standby is ensured.
The principle of this application does: when a power-on instruction is received, the first control module 110 controls the active terminal of the single-pole double-throw switch K1 to be connected with the second fixed terminal, and transmits a wake-up signal to the base of the second switch tube Q2, so that the relay RY1 is turned on and the second control module 240 is woken up, and then the second control module 240 controls the second switch module 250 to be closed, so that the internal unit 100 can stably output a power supply signal to the external unit 200; in order to ensure normal data interaction between the first communication circuit 150 and the second communication circuit 220, the first control module 110 controls the movable terminal of the single-pole double-throw switch K1 to be connected to the first fixed terminal, and the second control module 240 controls the second switch module 250 to be disconnected so as to disconnect the wake-up circuit 210, so that the internal unit 100 and the external unit 200 can normally operate; when shutdown is required, the second control module 240 directly controls the second switch module 250 to be turned off, and the first control module 110 controls the active end of the single-pole double-throw switch K1 to be suspended.
Second embodiment
The embodiment of the utility model provides a power supply system 10 mainly is applied to the air conditioner of interior machine power supply type. It should be noted that the basic principle and the generated technical effect of the power supply system 10 provided in the present embodiment are the same as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and corresponding contents in the above embodiments may be referred to. Please refer to fig. 3, which is a block diagram of a circuit structure of the power supply system 10 according to an embodiment of the present invention. The power supply system 10 includes an inner unit 100 and an outer unit 200, the inner unit 100 includes a first power module 120, a first control module 110 and a first switch module 130, the outer unit 200 includes a second power module 230, a second control module 240, a second switch module 250 and a thermistor PTC, the first power module 120 is electrically connected to the first switch module 130 and the first control module 110 respectively, the switch module, the thermistor PTC and the second power module 230 are electrically connected in sequence, and the second control module 240 is electrically connected to the second power module 230 and the second switch module 250 respectively.
The first control module 110 is configured to generate a second control signal when receiving the power-on command.
The first switch module 130 is configured to switch to a second state in response to a second control signal, so that the first power module 120 supplies power to the second control module 240 through the thermistor PTC and the second power module 230 to wake up the second control module 240.
The second control module 240 is further configured to control the second switch module 250 to be closed after being awakened, so that the outer unit 200 operates normally.
Referring to fig. 2 and fig. 4, in the power supply system 10 according to the present invention, compared to the power supply system 10 according to the first embodiment, a jumper (e.g., a2 in fig. 4) is connected in parallel between the third diode D3 and the second power module 230, so that the normally open contact of the relay RY1 is shorted with the third diode D3; and the L-terminal of the first power module 120 is routed to connect to the first fixed terminal of the single-pole double-throw switch K1 (as shown at a1 in fig. 4).
It can be understood that the utility model provides a power supply system 10 can only be arranged in the air conditioner of different power supply modes through a small amount of modification to the circuit board, and is compatible strong, and the suitability is good, can effectively practice thrift development resources, falls this and carries the effect.
Thus, the principle of the present embodiment is: when receiving a power-on command, the first control module 110 controls the active end of the single-pole double-throw switch K1 to be connected to the first fixed end of the single-pole double-throw switch K1, so that the L end of the first power module 120 is connected to the second power module 230 through the first fixed end of the single-pole double-throw switch K1, the thermistor PTC, and the jumper to wake up the second control module 240; then, the second control module 240 controls the second switch module 250 to be turned on, so as to ensure that the indoor unit 100 stably and continuously outputs the power signal to the outdoor unit 200.
It can be understood that, in the internal power supply type power supply module, only when the power-on command is received, the control module controls the first switch switching module to switch to the second state, so that the first power supply module 120 supplies power to the second control module through the thermistor PTC and the second power supply module 230 to wake up the second control module 240; after the second control module 240 is awakened, the motor is driven to operate, so that the current on the circuit is increased, the circuit is heated, and the resistance value of the thermistor PTC is gradually increased; in order to ensure that the outdoor unit 200 can normally operate, the second control module 240 is further configured to control the second switch module 250 to be closed after being awakened, so that the first power module 120 can continuously supply power to the second control module 240 through the second power module 230, and the outdoor unit 200 can normally operate; the power consumption of the power supply system 10 in the standby state can be effectively reduced by waking up the external unit 200 only when the power supply system is turned on.
The utility model also provides an air conditioner, power supply system 10 including first embodiment or second embodiment provide.
In addition, it can be known from the combination of the first embodiment and the second embodiment that the external unit power supply type power supply system 10 can be converted into the internal unit power supply type power supply system 10 by slightly changing the routing on the basis of the first embodiment, so that the compatibility is strong, the adaptability is good, the development resources can be effectively saved, and the cost is reduced.
To sum up, the utility model provides a power supply system and air conditioner, only when receiving the start instruction control module can control first switch switching module to switch to the first state and make first control module and second communication circuit communicate and make first power module and wake-up circuit communicate, and transmit the wake-up signal that generates to wake-up circuit through first switch module, second communication circuit in order to wake-up the second control module, the second control module controls the second switch module to close and control the wake-up circuit to break after being awakened up simultaneously, so that the outer machine normally works; at other moments, due to the existence of the switch module and the wake-up circuit, the first power module cannot be directly connected with the second power module and supplies power to the second control module, so that the inner machine loop and the outer machine loop are both in an open circuit state, and the power consumption of the power supply system in standby can be effectively reduced.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. The power supply system (10) is characterized in that the power supply system (10) comprises an inner unit (100) and an outer unit (200), the inner unit (100) comprises a first power module (120), a first control module (110) and a first switch module (130), the outer unit (200) comprises a second power module (230), a second control module (240), a second communication circuit (220), a second switch module (250) and a wake-up circuit (210), the first power module (120) is electrically connected with the first switch module (130) and the first control module (110) respectively, the first power module (120), the first switch module (130), the wake-up circuit (210), the second power module (230) and the second control module (240) are electrically connected in sequence, and the first control module (110), the first switch module (130) and the outer unit (200), The second communication circuit (220) and the wake-up circuit (210) are electrically connected in sequence, the second switch module (250) is connected with the wake-up circuit (210) in parallel, and the second switch module (250) is electrically connected with the second control module (240);
the first control module (110) is used for generating a first control signal when receiving a starting-up instruction and transmitting the first control signal to the first switch module (130);
the first switch module (130) is used for responding to the first control signal and switching to a first state so as to enable the first control module (110) to be communicated with the second communication circuit (220) and enable the first power supply module (120) to be communicated with the wake-up circuit (210);
the first control module (110) is further configured to generate a wake-up signal when receiving a power-on instruction, and transmit the wake-up signal to the wake-up circuit (210) through the first switch module (130) and the second communication circuit (220);
the wake-up circuit (210) is configured to close in response to the wake-up signal, so that the first power module (120) powers the second control module (240) via the second power module (230) to wake-up the second control module (240);
the second control module (240) is used for controlling the second switch module (250) to be closed after being awakened so as to enable the outer machine (200) to work normally.
2. The power supply system (10) according to claim 1, wherein the internal unit (100) further comprises a first communication circuit (150), and the first power module (120), the first switch module (130), the first communication circuit (150) and the second communication circuit (220) are electrically connected in sequence;
the first control module (110) is further configured to control the first switch module (130) to switch to a second state after the second control module (240) is awakened, so that the first switch module (130) is communicated with the first communication circuit (150);
the second control module (240) is further configured to control the wake-up circuit (210) to turn off after being woken up.
3. The power supply system (10) according to claim 2, wherein the indoor unit (100) further comprises a voltage stabilizing circuit (140), one end of the voltage stabilizing circuit (140) is electrically connected with the N-terminal of the first power module (120), and the other end of the voltage stabilizing circuit (140) is electrically connected with the first switch module (130).
4. The power supply system (10) of claim 3, wherein the first switch module (130) comprises a single-pole double-throw switch (K1), wherein the active end of the single-pole double-throw switch (K1) is electrically connected between the wake-up circuit (210) and the L end of the first power module (120), the first fixed end of the single-pole double-throw switch (K1) is electrically connected with the voltage stabilizing circuit (140), the second fixed end of the single-pole double-throw switch (K1) is electrically connected with the second communication circuit (220), and the other end of the first communication circuit (150) is electrically connected between the second fixed end of the single-pole double-throw switch (K1) and the second communication circuit (220); wherein the first switch module (130) is in a first state when the active terminal of the single pole double throw switch (K1) is connected to the second fixed terminal, and the first switch module (130) is in a second state when the active terminal of the single pole double throw switch (K1) is connected to the first fixed terminal.
5. The power supply system (10) of claim 4, wherein the voltage regulator circuit (140) comprises a first voltage regulator tube (ZD1), a first resistor (R1) and a first capacitor (C1), the first voltage regulator tube (ZD1), the first resistor (R1) and the first capacitor (C1) are connected in parallel, an anode of the first voltage regulator tube (ZD1) is electrically connected with the N end of the first power module (120), and a cathode of the first voltage regulator tube (ZD1) is electrically connected between the first communication circuit (150) and the first fixed end of the single-pole double-throw switch (K1).
6. Power supply system (10) according to claim 1, characterized in that the wake-up circuit (210) comprises a first switching tube (Q1), a second switching tube (Q2), a relay (RY1) and a thermistor (PTC), the first switch module (130) is electrically connected with the base electrode of the first switch tube (Q1), the collector of the first switch tube (Q1) is electrically connected with one end of the relay (RY1), the emitter of the first switch tube (Q1) is electrically connected with the emitter of the second switch tube (Q2), the output end of the second communication circuit (220) is electrically connected with the base electrode of the second switch tube (Q2), the collector of the second switch tube (Q2) is electrically connected with the other end of the relay (RY1), the first switch module (130) is connected with the thermistor (PTC) and the normally open contact of the relay (RY1) in series and then is electrically connected with the second power supply module (230);
the first switch tube (Q1) is used for conducting after the switch module is switched to the first state;
the first control module (110) is used for transmitting the wake-up signal to the second switching tube (Q2) through the second communication circuit (220);
the second switch tube (Q2) is used for responding to the wake-up signal and conducting to electrify the relay (RY 1);
the relay (RY1) is used for controlling the normally open contact of the relay (RY1) to be closed after being electrified, so that the first power supply module (120) supplies power to the second control module (240) through the second power supply module (230) to wake up the second control module (240).
7. The power supply system (10) of claim 6, wherein the wake-up circuit (210) further comprises a first diode (D1), a second diode (D2), a third diode (D3), and a second capacitor (C2), the first switch module (130) is connected with the anode and the cathode of the first diode (D1) in series and then is electrically connected with the base of the first switch tube (Q1), the first switch module (130) is connected with the thermistor (PTC) in series, the anode and the cathode of the third diode (D3) are electrically connected with the normally open contact of the relay (RY1) later, an anode of the second diode (D2) is electrically connected between the thermistor (PTC) and the first switching module (130), the cathode of the second diode (D2) is connected in series with the second capacitor (C2) and then is electrically connected with the other end of the relay (RY 1).
8. The power supply system (10) of claim 6, wherein the wake-up circuit (210) further comprises a second voltage regulator (ZD2) and a third capacitor (C3), wherein an anode of the second voltage regulator (ZD2) is electrically connected with a collector of the second switch tube (Q2), a cathode of the second voltage regulator (ZD2) is electrically connected with the other end of the relay (RY1), and the third capacitor (C3) is connected in parallel with the second voltage regulator (ZD 2).
9. A power supply system (10) is characterized in that the power supply system (10) comprises an inner unit (100) and an outer unit (200), the inner unit (100) comprises a first power module (120), a first control module (110) and a first switch module (130), the outer unit (200) comprises a second power module (230), a second control module (240), a second switch module (250) and a thermistor (PTC), the first power module (120) is electrically connected with the first switch module (130) and the first control module (110) respectively, the switch module, the thermistor (PTC) and the second power module (230) are electrically connected in sequence, and the second control module (240) is electrically connected with the second power module (230) and the second switch module (250) respectively;
the first control module (110) is used for generating a second control signal when receiving a starting-up instruction;
the first switch module (130) is used for switching to a second state in response to the second control signal, so that the first power supply module (120) supplies power to the second control module (240) through the thermistor (PTC) and the second power supply module (230) to wake up the second control module (240);
the second control module (240) is further used for controlling the second switch module (250) to be closed after being awakened so that the outer unit (200) can work normally.
10. An air conditioner, characterized in that it comprises a power supply system (10) according to any one of claims 1 to 9.
CN202020610678.2U 2020-04-21 2020-04-21 Power supply system and air conditioner Active CN212204951U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112902416A (en) * 2020-12-24 2021-06-04 珠海格力电器股份有限公司 Control device and method of air conditioner and air conditioner
CN113669879A (en) * 2021-08-31 2021-11-19 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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112902416A (en) * 2020-12-24 2021-06-04 珠海格力电器股份有限公司 Control device and method of air conditioner and air conditioner
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
CN113669879A (en) * 2021-08-31 2021-11-19 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
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

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Effective date of registration: 20230505

Address after: 315000 No.1166 Mingguang North Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province

Patentee after: NINGBO AUX ELECTRIC Co.,Ltd.

Address before: No.202, 2nd floor, building B, headquarters base, No.2 Qianwan 2nd Road, Tangjiawan Town, Zhuhai City, Guangdong Province 519080

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Patentee before: NINGBO AUX ELECTRIC Co.,Ltd.

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