WO2022257236A1

WO2022257236A1 - Air conditioning device, and control device and method for swing motor thereof

Info

Publication number: WO2022257236A1
Application number: PCT/CN2021/107606
Authority: WO
Inventors: 王志亮; 习涛; 黄育夫
Original assignee: Tcl空调器(中山)有限公司
Priority date: 2021-06-09
Filing date: 2021-07-21
Publication date: 2022-12-15
Also published as: CN115450940A

Abstract

The present application provides an air conditioning device, and a control device and method for a swing motor thereof. The control device comprises: a main chip of an indoor unit; a conversion circuit electrically connected to the main chip of the indoor unit and configured to convert a signal, an output terminal of the conversion circuit being electrically connected to a swing motor; and a detection circuit electrically connected to the main chip of the indoor unit and the output end of the conversion circuit respectively, and configured to obtain a feedback signal and transmit the feedback signal to the main chip of the indoor unit. The main chip of the indoor unit can monitor the operating state of the swing motor.

Description

Control device and control method for air-conditioning equipment and swing fan motor

technical field

The present application belongs to the technical field of air conditioners, and in particular relates to an air conditioner and a control device and control method for a swing motor thereof.

Background technique

With the increasing popularity of air-conditioning equipment, users have higher and higher requirements for the comfort and reliability of air-conditioning equipment. In order to allow users to experience the wind effect of the air conditioner from different angles, the use of wind motors in air conditioners is very common.

The working process of the indoor swing motor of the existing air-conditioning equipment is usually as follows: the main chip of the air-conditioning equipment internal unit outputs pulse width modulation (Pulse Width Modulation, PWM) command, through the conversion circuit to control the swing motor, so that the swing motor runs at a fixed angle. However, the main chip of the internal machine cannot know the actual running state of the swing motor.

technical problem

The main chip of the internal unit cannot know the actual running status of the pendulum fan motor.

technical solution

Embodiments of the present application provide an air conditioner and a control device and a control method for the swing motor thereof, so that the main chip of the internal unit can know the actual running state of the swing motor.

In the first aspect, the embodiment of the present application provides a control device for a swing motor, including:

Internal machine main chip;

A conversion circuit electrically connected to the main chip of the internal machine, the conversion circuit is used to convert the control signal sent by the main chip of the internal machine into a driving signal, and the output end of the conversion circuit is electrically connected to the swing motor; and

A detection circuit, one end of the detection circuit is electrically connected to the main chip of the internal machine, and the other end of the detection circuit is electrically connected to the output end of the conversion circuit, and the detection circuit is used to obtain the connection between the conversion circuit and the The feedback signal after the pendulum wind motor is electrically connected, and transmits the feedback signal to the main chip of the internal machine.

In the second aspect, the embodiment of the present application also provides a control method of the swing motor, which is applied to the control device of the swing motor, and the control device of the swing motor includes an internal machine main chip, a conversion circuit and a detection circuit. The main chip of the internal machine is electrically connected to the conversion circuit, one end of the detection circuit is electrically connected to the main chip of the internal machine, the other end of the detection circuit is electrically connected to the output end of the conversion circuit, and the conversion circuit The output end is electrically connected with the pendulum fan motor, and the control method includes:

The main chip of the internal machine controls the operation of the swing motor through the conversion circuit;

The main chip of the internal machine determines whether the feedback signal after the conversion circuit is electrically connected to the swing motor is abnormal;

When the main chip of the internal machine determines that the feedback signal is abnormal, the main chip of the internal machine controls the shutdown of the swing motor and outputs an alarm signal;

When the internal machine main chip determines that the feedback signal is normal, the internal machine main chip controls the swing motor to operate within the first angle range.

In a third aspect, the embodiment of the present application further provides an air conditioner, including:

pendulum wind motor;

The control device of the swing motor is electrically connected with the swing motor, and the control device of the swing motor is the above-mentioned control device.

Beneficial effect

The control device of the swing motor in the embodiment of the present application includes a main chip of the internal machine, a conversion circuit and a detection circuit. The main chip of the internal machine controls the operation of the swing motor through the conversion circuit, and the detection circuit is used to obtain feedback signal, and transmit the feedback signal to the main chip of the internal machine. By setting a detection circuit that can detect the running state of the swing motor, the main chip of the internal unit can monitor the running state of the swing motor in real time according to the feedback signal transmitted by the detection circuit.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Apparently, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative efforts.

For a more complete understanding of the present application and its beneficial effects, the following will be described in conjunction with the accompanying drawings. Wherein, the same reference numerals denote the same parts in the following description.

Fig. 1 is a schematic structural diagram of an air conditioner provided by an embodiment of the present application.

FIG. 2 is a structural schematic diagram of a control device for a swing motor in the air conditioner shown in FIG. 1 .

Fig. 3 is another structural schematic diagram of the control device for the swing motor in the air conditioner shown in Fig. 1 .

FIG. 4 is a schematic structural diagram of a detection circuit in the control device for the swing motor shown in FIG. 3 .

FIG. 5 is another structural schematic diagram of the detection circuit in the control device for the swing motor shown in FIG. 3 .

FIG. 6 is a schematic flowchart of a control method for a swing motor provided in an embodiment of the present application.

FIG. 7 is another schematic flowchart of a control method for a swing motor provided in an embodiment of the present application.

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

Embodiments of the present application provide an air conditioner and a control device for a swing motor thereof, so as to improve the reliability of air conditioner operation. The air conditioner and the control device for the swing motor thereof will be described below with reference to the accompanying drawings.

An embodiment of the present application provides an air conditioner. For details, please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of the air conditioner provided in an embodiment of the present application. The air conditioner 1 may be an inverter air conditioner or a fixed frequency air conditioner, and the air conditioner 1 may be a vertical air conditioner, a wall-mounted air conditioner, or a central air conditioner. The air conditioner 1 provided in the embodiment of the present application includes a swing motor 10 and a control device 20 of the swing motor, the swing motor 10 and the control device 20 of the swing motor are electrically connected, and the control device 20 of the swing motor is used to control the swing motor machine 10 so that the swing motor 10 can operate normally. The control device 20 of the swing motor can also obtain feedback from the swing motor 10 so that the air conditioner 1 can monitor the running state of the swing motor 10 . Among them, the swing fan motor 10 is used to control the fan blades of the air conditioner 1 to swing, and then the fan of the air conditioner 1 can blow air into the space outside the air conditioner 1 through the gap formed by the swing of the fan blades, so that the user can move the air at different angles. All can feel the air outlet effect of the air conditioner 1 . Therefore, the normal operation of the pendulum wind motor 10 has a great effect on the cooperation with the fan and the normal operation of the fan blades.

In order to describe the control device 20 of the swing motor and its control process more clearly, the following will describe the control device 20 of the swing motor and the control method of the swing motor respectively.

Please refer to FIG. 1 in conjunction with FIG. 2 . FIG. 2 is a structural schematic diagram of a control device for the swing motor in the air conditioner shown in FIG. 1 . The control device 20 of the swing motor includes an internal machine main chip 22 , a conversion circuit 24 and a detection circuit 26 . The conversion circuit 24 is electrically connected to the internal machine main chip 22, and the conversion circuit 24 is used for converting the control signal sent by the internal machine main chip 22 into a driving signal. The output end of the conversion circuit 24 is electrically connected to the swing motor 10 so that the main chip 22 of the internal unit controls the swing motor 10 through a driving signal. One end of the detection circuit 26 is electrically connected to the main chip 22 of the internal unit, and the other end of the detection circuit 26 is electrically connected to the output end of the conversion circuit 24 . The detection circuit 26 is used to obtain the feedback signal after the conversion circuit 24 is electrically connected to the swing motor 10 , and transmit the feedback signal to the main chip 22 of the internal unit. By setting the detection circuit 26 capable of detecting the running state of the swing motor 10 , the main chip 22 of the internal unit can monitor the running state of the swing motor 10 in real time according to the feedback signal transmitted by the detection circuit 26 .

Wherein, the internal unit main chip 22 is arranged in the internal unit of the air conditioner 1 to control the operation of the internal unit of the air conditioner 1 . It should be noted that the air conditioner 1 is generally divided into an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit are respectively arranged at different positions to perform different functions. Both the swing motor 10 and the control device 20 of the swing motor in the embodiment of the present application are arranged in the indoor unit to control the operation of the indoor unit of the air conditioner 1 .

The conversion circuit 24 can be understood as a logic level conversion circuit, that is, it converts the control signal sent by the main chip 22 of the internal unit into a drive signal and sends it to the swing motor 10 , thereby controlling the operation of the swing motor 10 .

The detection circuit 26 is arranged between the main chip 22 of the internal unit and the swing motor 10 , the control signal sent by the main chip 22 of the internal unit is converted into a drive signal through the conversion circuit 24 , and the detection circuit 26 can obtain the connection between the conversion circuit 24 and the swing motor 10 . The final feedback signal is transmitted to the main chip 22 of the internal machine. In this way, the operating state of the swing motor 10 is detected, so that the main chip 22 of the internal unit can monitor the operation of the swing motor 10 .

Wherein, the main chip 22 of the internal machine can be used to determine the abnormality of the feedback signal. For example, when it is determined that the feedback signal is abnormal, the swing motor 10 is controlled to stop and an alarm signal is output. When the feedback signal is within the first preset range, it is determined that the feedback signal is normal, and the working mode of the swing motor 10 is obtained. When the swing motor is in the first working mode, the swing motor 10 is controlled to run within the first angle range. The first working mode can be understood as a common working mode, that is, the user has no special requirements. Wherein, the feedback signal is a pulse width modulation signal. The abnormality of the feedback signal can be understood as judging whether the feedback pulse width modulation signal is within the first preset range, if the feedback pulse width modulation signal is 0 or the feedback pulse width modulation signal is not within the first preset range, Then it is determined that the feedback signal is abnormal. If the feedback pulse width modulation signal is within the first preset range, it is determined that the feedback signal is normal, and then the swing motor 10 is controlled to operate within the first angle range. Exemplarily, the first preset range, that is, the duty cycle of the pulse width modulation signal may be 0.4 to 0.6. When the duty cycle of the feedback pulse width modulation signal is 0.8 or 0.2, that is, the feedback signal is not in the first Within the preset range, it can be determined that the feedback signal is abnormal at this time. The duty cycle of the pulse width modulation signal refers to the ratio of the power-on time to the total time in a pulse cycle. Duty cycle (Duty Ratio) has the following meanings in the field of telecommunication: for example, the duty ratio of a pulse sequence with a pulse width of 1 μs and a signal period of 4 μs is 0.25. It should be noted that, when controlling the start-up operation of the swing motor 10 , the operating angle of the swing motor 10 can be understood as an angle within the first angle range. When the pulse width modulation signal fed back by the detection circuit 24 is normal, the pendulum fan motor 10 is controlled to operate normally, that is, to continue to operate within the first angle range as originally operated.

It should be noted that the control signal sent by the main chip 22 of the internal unit is converted into a drive signal by the conversion circuit 24 and sent to the swing motor 10. When the feedback signal detected by the main chip 22 of the internal unit matches the control signal sent out, It can be judged that the operation of the pendulum fan motor is normal. When the feedback signal detected by the internal machine main chip 22 deviates from the control signal sent out, it can be understood that the feedback signal of the swing motor 10 has affected the drive signal of the conversion circuit 24, for example, the feedback signal of the swing motor 10 The duty cycle of the driving signal of the conversion circuit 24 is lowered, so that the feedback signal of the detection point detected by the main chip 22 of the internal machine deviates from the control signal sent out, and then it can be judged that the operating angle of the swing motor 10 is different from the preset If there is a deviation, the internal machine main chip 22 adjusts the duty cycle of the output control signal according to the deviation to correct the deviation.

Wherein, when the swing motor 10 is in the second working mode, the internal machine main chip 22 determines whether the feedback signal is within the second preset range. The second working mode can be understood as the working mode when the user has special needs. When the feedback signal exceeds the second preset range, the internal machine main chip 22 adjusts the driving signal and outputs the adjusted driving signal to the swing motor 10 so that the swing motor 10 operates within the second angle range. Wherein, the second preset range is within the first preset range and smaller than the first preset range, and the second angle range is within the first angle range and smaller than the first angle range. It should be noted that the endpoint value of the second preset range is within the first preset range, and the second preset range is smaller than the first preset range. The endpoint value of the second angle range is also within the first angle range, and the second angle range is smaller than the first angle range. It should be noted that, the feedback signal fed back by the detection circuit 26 provided in the embodiment of the present application can first judge whether the operation of the swing motor 10 is normal according to the feedback signal, and then make a judgment after it is determined that the operation of the swing motor 10 is normal. Whether the operation of the pendulum wind motor 10 meets the requirements of the user, when the feedback signal is within the first preset range but not within the second preset range, it can be determined that the operation of the pendulum wind motor 10 is normal and meets the user's requirements for use. The main chip 22 of the time machine controls the swing motor 10 to operate within the second angle range. When the feedback signal is within the second preset range, it can be determined that the swing motor 10 is operating normally but does not meet the requirements of the user. At this time, the internal machine main chip 22 controls the swing motor 10 to operate within the second angle range to meet the requirements of the user. User requirements. The second angle range may be a second angle range corresponding to different modes pre-stored in the main chip 22 of the internal machine, or a second angle range input to the main chip 22 of the internal machine according to the swing angle required by the user.

Wherein, the driving signal is a pulse width modulation signal, and the main chip 22 of the internal unit adjusts the duty ratio of the pulse width modulation signal and outputs the adjusted pulse width modulation signal to the swing motor 10 to make the swing motor 10 operate at the second angle. It can be understood that, by modulating the duty ratio of the pulse width modulation signal, the swing motor 10 can be operated at a required operating angle.

It can be understood that the main chip 22 of the internal unit outputs the control signal to the conversion circuit 24, and through the conversion circuit 24, it is converted into a drive signal and output to the swing motor 10 to control the swing motor 10, and at the same time, the detection circuit 26 detects the swing motor 10 The actual running situation of the system and send a feedback signal to the main chip 22 of the internal machine. The main chip 22 of the internal unit detects the actual operation of the swing motor 10 through the detection circuit 26 to judge. The operation of the equipment 1 is abnormal, so that the operation of the air conditioner 1 is reliable. When it is detected that there is a deviation between the operating angle and the user's requirement, the main chip 22 of the internal machine adjusts the output duty cycle of the pulse width modulation signal in real time to correct the angle deviation of the swing motor, thereby improving the user's experience.

It should be noted that the control device 20 of the swing wind motor provided in the embodiment of the present application may also include an interface seat. For example, please refer to FIG. 3 in conjunction with FIG. 1 . Another schematic diagram of the control device of the machine. The interface seat 28 can be understood as a socket. An interface of the interface base 28 is plugged and connected with the output end of the conversion circuit 24, and another interface of the interface base 28 is plugged and connected with the interface of the swing motor 10. It can be understood that only the output end of the conversion circuit 24 is connected with the When the interface seat 28 is plugged in and the interface of the pendulum motor 10 is plugged in with the interface seat 28, the state that the conversion circuit 24 and the pendulum motor 10 are electrically connected through the interface seat 28 can be realized, so that the conversion circuit 24 can transmit signals to the pendulum. The wind motor 10 is used to control the pendulum wind motor 10.

In order to more clearly describe the process of detecting the running state of the swing motor 10 by the control device 20 of the swing motor, the detection circuit 26 in the control device will be described below.

For example, please refer to FIG. 4 in conjunction with FIG. 3 . FIG. 4 is a schematic structural diagram of the detection circuit in the control device for the swing motor shown in FIG. 3 . The detection circuit 26 includes a triode Q, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a fifth resistor R5. Wherein, the triode Q includes a base Q1, an emitter Q2 and a collector Q3. The collector Q3 is electrically connected to the power supply VCC1 of the main chip 22 of the internal unit. One end of the first resistor R1 is electrically connected to the base Q1, and the other end of the first resistor R1 is electrically connected to one end of the second resistor R2. The other end of the second resistor R2 is electrically connected to the output end OUT4 of the conversion circuit 24 . One end of the third resistor R3 is electrically connected to the other end of the first resistor R1, and the other end of the third resistor R3 is electrically connected to the ground. One end of the fourth resistor R4 is electrically connected to the signal acquisition terminal P1.3 of the internal machine main chip 22, and the other end of the fourth resistor R4 is electrically connected to the emitter Q2. One end of the fifth resistor R5 is electrically connected to the other end of the fourth resistor R4, and the other end of the fifth resistor R5 is electrically connected to the ground.

Wherein, the internal machine main chip 22 includes a power supply VCC, a signal output terminal P1.7, a signal collection terminal P1.3, and a ground terminal GND. The power supply VCC is used to power the internal machine main chip 22, and the voltage value of the power supply VCC is VCC1. The signal output terminal P1.7 is used for outputting signals, and the signal collecting terminal P1.3 is used for collecting signals.

The conversion circuit 24 includes an input pin IN1 , a ground terminal VSS, an output pin OUT4 and a power supply VDD. The input pin IN1 is used to receive the input signal, and the output pin OUT4 is used to output the signal. The voltage value of the power supply VDD is VCC2, and the voltage value of the power supply VCC of the internal unit main chip 22 is different from the voltage value of the power supply VDD of the conversion circuit 24 . The input pin IN1 is connected to the signal output terminal P1.7 of the main chip 22 of the internal machine.

The interface socket 28 includes an interface 1 and an interface 5 , the interface 1 is used for connecting the power supply VCC2 , and the interface 5 is used for connecting the output pin OUT4 of the converting circuit 24 .

It can be understood that the second resistor R2 and the third resistor R3 form a voltage dividing and current limiting module of the detection circuit 26 . The transistor Q can be understood as a switch module of the detection circuit 26 . When the end of the second resistor R2 close to the interface seat 28 receives the high level from the swing motor 10, a new voltage value is formed by dividing the voltage between the second resistor R2 and the third resistor R3, and the high level passes through the second resistor R2 And the third resistor R3 forms a current, and the high level also forms a current conduction transistor Q through the second resistor R2 and the first resistor R1, and then the high level signal is input to the signal acquisition of the main chip 22 of the internal machine through the fourth resistor R4 Terminal P1.3, at this time, the main chip 22 of the internal machine receives the high-level signal fed back from the detection point connected to the conversion circuit 24 and the swing motor 10, and compares it with the control signal sent by the main chip 22 of the internal machine. When the high-level signal is identical or approximately equal to the control signal, it is determined that the swing motor 10 is operating normally. When the end of the second resistor R2 close to the interface seat 28 receives the low level from the swing motor 10, the low level does not conduct the triode Q, and then the signal acquisition terminal P1. 24 and the low-level signal fed back by the detection point connected to the swing motor 10, when the low-level signal is different from the control signal, it is determined that the swing motor 10 is operating abnormally.

In addition, the structure of the main chip 22 of the internal machine, the conversion circuit 24 and the interface seat 28 is not limited thereto. For example, please refer to FIG. 5 . A schematic diagram of the structure.

The internal machine main chip 22 also includes a reset pin RST/VPP, a serial data input port RxD/P3.0, a serial data output port TxD/P3.1, an external resonance pin XTAL2, an external resonance pin XTAL1, an internal interrupt 0INT0/P3.2, internal interrupt 1INT1/P3.3, timer/counter 0 external input T0/P3.4, timer/counter 1 external input T1/P3.5, I/O port P1.6, I/ O port P1.5, I/O port P1.4, I/O port P1.2, analog input terminal AIN0/P1.1, analog input terminal AIN0/P1.0, external data memory read pulse P3.7. The reset pin RST/VPP is used to connect a reset device to reset the main chip 22 of the internal machine. The serial data input port RxD/P3.0 can be connected to devices that input serial data. The serial data output port TxD/P3.1 can be connected to relevant devices to output the serial data of the internal machine main chip 22 to the relevant devices. The external resonant pin XTAL1 and the external resonant pin XTAL2 are respectively used to connect with relevant circuits to provide clock signals for the internal machine main chip 22 . Internal interrupt 0INT0/P3.2 and internal interrupt 1INT1/P3.3 correspond to the pins connected to the operation when the interrupt signal is 0 and the interrupt signal is 1 respectively. Timer/counter 0 external input T0/P3.4 and timer/counter 1 external input T1/P3.5 correspond to the pins connected when the external input is 0 and the external input is 1, respectively. I/O port P1.6, I/O port P1.5, I/O port P1.4 and I/O port P1.2 are all pins that can be used as input ports or output ports. The analog input terminal AIN0/P1.1 and the analog input terminal AIN0/P1.0 are pins connected with related devices to input different analog signals. External data memory read pulse P3.7 is used to connect with relevant devices or circuits to obtain external data.

The conversion circuit 24 also includes input pins IN2, input pins IN3, input pins IN4, input pins IN5, input pins IN6, input pins IN7, output pins OUT1, output pins OUT2, output pins OUT3, An output pin OUT5, an output pin OUT6, and an output pin OUT7. The input pin IN2, the input pin IN3, the input pin IN4, the input pin IN5, the input pin IN6 and the input pin IN7 are all connected with relevant devices to input the signal outside the conversion circuit 24 to the conversion circuit 24. pin. Correspondingly, the output pin OUT1, the output pin OUT2, the output pin OUT3, the output pin OUT5, the output pin OUT6 and the output pin OUT7 are respectively connected with relevant devices to output the signal of the conversion circuit 24 to the relevant devices pins in . Wherein, the input pin IN2, the input pin IN3 and the input pin IN4 are respectively connected with the I/O port P1.6, the I/O port P1.5 and the I/O port P1.4 of the main chip 22 of the internal machine. In order to input the signal of the internal machine main chip 22 into the conversion circuit 24 .

The interface base 28 also includes an interface 2 , an interface 3 and an interface 4 . The interface 2 is used to connect the output pin OUT1 of the conversion circuit 24, the interface 3 and the interface 4 are respectively connected with the output pin OUT2 and the output pin OUT3 of the conversion circuit 24, and is used to send out the internal machine main chip 22 converted by the conversion circuit 24. The signal transmitted to the pendulum wind motor 10.

It should be noted that the pendulum motor 10 can be understood as a four-phase, eight-step stepping motor, and the interface 2, interface 3, interface 4 and interface 5 of the interface base 28 are respectively connected to the four phases of the pendulum motor. The output pin OUT1, output pin OUT2, output pin OUT3 and output pin 4 of the circuit 24 are correspondingly connected to the interface 2, interface 3, interface 4 and interface 5 of the interface socket 28, and the signal output terminal P1 of the main chip 22 of the internal machine .7, I/O port P1.6, I/O port P1.5 and I/O port P1.4 correspond to the input pin IN1, input pin IN2, input pin IN3 and input pin of the conversion circuit 24 respectively. The pin IN4 is used to control the swing motor 10 . One end of the detection circuit 26 can be connected to any one of the output pin OUT1, the output pin OUT2, the output pin OUT3 and the output pin 4 of the conversion circuit 24, to detect the feedback after the conversion circuit 24 is electrically connected to the swing motor 10 signal, thereby detecting the running state of the pendulum fan motor.

It should be noted that when the swing motor 10 is running normally, the signal collecting terminal P1.3 of the main chip 22 of the internal unit collects a normal PWM signal, and the air conditioner 1 is running normally. When the output of the swing motor 10 is abnormal, the signal acquisition terminal P1.3 of the main chip 22 of the internal machine cannot collect a signal, and the main chip 22 of the internal machine outputs a shutdown alarm. When the internal machine main chip 22 detects that the operating angle of the swing motor 10 deviates from the second pre-stored angle, the internal machine main chip 22 calibrates the operating angle of the swing motor 10 by adjusting the PWM output duty cycle, so that The pendulum fan motor 10 operates at a second angle.

In order to more clearly describe the control process of the swing motor 10 in the embodiment of the present application, the following will be described from the perspective of the control method of the swing motor.

For example, please refer to FIG. 6 . FIG. 6 is a schematic flowchart of a control method for a swing motor provided in an embodiment of the present application. The control method of the swing motor is applied to the control device of the swing motor, and the control device of the swing motor can refer to the control device shown in Figs. 1-5. The control device 20 of the swing motor includes an internal machine main chip 22 , a conversion circuit 24 and a detection circuit 26 . The internal machine main chip 22 is electrically connected to the conversion circuit 24 , one end of the detection circuit 26 is electrically connected to the internal machine main chip 22 , and the other end of the detection circuit 26 is electrically connected to the output end of the conversion circuit 24 . The output terminal of the conversion circuit 24 is electrically connected with the swing motor 10 . The control method of pendulum wind motor includes:

101. The main chip of the internal unit controls the operation of the swing motor through a conversion circuit.

The main chip 22 of the internal unit sends a control signal to the conversion circuit 24 , the control signal is converted into a driving signal through the conversion circuit 24 , and the conversion circuit 24 sends the driving signal to the swing motor 10 to control the operation of the swing motor 10 . The driving signal may be a pulse width modulation signal, and the swing motor 10 is controlled to operate at different operating angles by sending the duty cycle of the pulse width modulation signal of different driving signals.

102. The main chip of the internal unit determines whether the feedback signal after the conversion circuit is electrically connected to the pendulum fan motor is abnormal.

The detection circuit 26 transmits the feedback signal after the conversion circuit 24 is electrically connected to the swing motor 10 to the main chip 22 of the internal machine, and the main chip 22 of the internal machine makes a matching judgment between the feedback signal and the sent control signal. It should be noted that the feedback signal of the running angle of the swing motor 10 can affect the driving signal of the conversion circuit 24, so that the main chip 22 of the internal unit can judge whether the running angle of the swing motor 10 is normal according to the received feedback signal. So that the main chip 22 of the internal machine can adjust the control signal so that the swing motor 10 can operate normally.

103. When the main chip of the internal machine determines that the feedback signal is abnormal, the main chip of the internal machine controls the swing motor to stop and outputs an alarm signal.

The feedback signal can be understood as a pulse width modulation signal. When the feedback signal detected by the internal machine main chip 22 does not match the sent control signal, for example, the duty cycle of the feedback signal and the duty cycle of the drive signal sent according to the control signal When the ratio is different or not within the preset range, it can be determined that the feedback signal is abnormal. After determining that the feedback signal is abnormal, the main chip 22 of the internal unit can change the drive signal to a continuous low level through the conversion circuit 24 to disconnect the operation of the swing motor 10, and at the same time output an alarm signal to the user to remind the user that the swing motor 10 is abnormal , can avoid greater damage and facilitate subsequent maintenance.

104. When the main chip of the internal machine determines that the feedback signal is normal, the main chip of the internal machine controls the swing motor to run within the first angle range.

When the feedback signal detected by the internal machine main chip 22 matches the sent control signal, for example, the duty cycle of the feedback signal is approximately the same as the duty cycle of the drive signal sent according to the control signal or is within a preset range , then it can be determined that the feedback signal is normal, that is, the operation of the swing motor 10 is normal. At this time, the working mode of the swing motor 10 can be obtained. When the swing motor 10 is in the first working mode, that is, the normal running mode, the internal The machine main chip 22 controls the swing motor 10 to run within the first angle range. It should be noted that, when controlling the start-up operation of the swing motor 10 , the operating angle of the swing motor 10 can be understood as an angle within the first angle range. When the pulse width modulation signal fed back by the detection circuit 24 is normal, the pendulum fan motor 10 is controlled to operate normally, that is, to continue to operate within the first angle range as originally operated.

By setting the detection circuit 26 capable of detecting the running state of the swing motor 10 , the main chip 22 of the internal unit can monitor the running state of the swing motor 10 in real time according to the feedback signal transmitted by the detection circuit 26 .

It should be noted that the control method of the swing motor is not limited thereto. For an example, please refer to FIG. 7 . FIG. 7 is another schematic flowchart of a control method of the swing motor provided in an embodiment of the present application. The control method of the swing motor is applied to the control device of the swing motor, and the control device of the swing motor can refer to the control device shown in Figs. 1-5. The control method of pendulum wind motor includes:

201. The main chip of the internal unit controls the operation of the swing motor through a conversion circuit.

202. The main chip of the internal unit determines whether the feedback signal after the conversion circuit is electrically connected to the pendulum fan motor is abnormal.

203. When the main chip of the internal machine determines that the feedback signal is abnormal, the main chip of the internal machine controls the swing motor to stop and outputs an alarm signal.

About 201~203: You can refer to the descriptions of the above steps 101~103 respectively.

204. When the main chip of the internal machine determines that the feedback signal is within the first preset range, the main chip of the internal machine determines that the feedback signal is normal, and acquires the working mode of the swing motor.

205. When the swing motor is in the first working mode, the main chip of the internal machine controls the swing motor to run within the first angle range.

206. When the swing motor is in the second working mode, the main chip of the internal machine determines whether the feedback signal is within the second preset range, and the second preset range is within the first preset range and smaller than the first preset range; if If the feedback signal exceeds the second preset range, the main chip of the internal unit adjusts the control signal and sends a drive signal to make the swing motor run within the second angle range, and the second angle range is within the first angle range and smaller than the first angle scope.

Regarding 204-206, for example, when the duty ratio of the feedback signal matches the duty ratio of the driving signal converted according to the control signal, that is, when the feedback signal is within the first preset range, it may be determined that the feedback signal is normal, That is to say, the operation of the swing motor 10 is normal. At this time, the working mode of the swing motor 10 can be obtained, and when the swing motor is in the first working mode, the swing motor 10 is controlled to run within the first angle range. The first working mode can be understood as a common working mode, that is, the user has no special requirements. When the swing motor 10 is in the second working mode, the internal machine main chip 22 determines whether the feedback signal is within the second preset range. The second working mode can be understood as the working mode when the user has special needs. When the feedback signal exceeds the second preset range, the internal machine main chip 22 adjusts the driving signal and outputs the adjusted driving signal to the swing motor 10 so that the swing motor 10 operates within the second angle range. Wherein, the second preset range is within the first preset range and smaller than the first preset range, and the second angle range is within the first angle range and smaller than the first angle range. It should be noted that the endpoint value of the second preset range is within the first preset range, and the second preset range is smaller than the first preset range. The endpoint value of the second angle range is also within the first angle range, and the second angle range is smaller than the first angle range. It should be noted that, the feedback signal fed back by the detection circuit 26 provided in the embodiment of the present application can first judge whether the operation of the swing motor 10 is normal according to the feedback signal, and then make a judgment after it is determined that the operation of the swing motor 10 is normal. Whether the operation of the pendulum wind motor 10 meets the requirements of the user, when the feedback signal is within the first preset range but not within the second preset range, it can be determined that the operation of the pendulum wind motor 10 is normal and meets the user's requirements for use. The main chip 22 of the time machine controls the swing motor 10 to operate within the second angle range. When the feedback signal is within the second preset range, it can be determined that the swing motor 10 is operating normally but does not meet the requirements of the user. At this time, the internal machine main chip 22 controls the swing motor 10 to operate within the second angle range to meet the requirements of the user. User requirements. The second angle range may be a second angle range corresponding to different modes pre-stored in the main chip 22 of the internal machine, or a second angle range input to the main chip 22 of the internal machine according to the swing angle required by the user. Wherein, the drive signal is a pulse width modulation signal, and the main chip 22 of the internal unit adjusts the duty cycle of the pulse width modulation signal and outputs the adjusted pulse width modulation signal to the swing motor 10 so that the swing motor 10 is within the second angle range run. It can be understood that, by modulating the duty ratio of the pulse width modulation signal, the swing motor 10 can be operated at a required operating angle.

The control device 20 for the swing motor with the detection circuit 26 provided in the embodiment of the present application enables the internal unit main chip 22 of the indoor inverter air conditioner 1 to detect the actual output angle of the swing motor 10 . When the swing motor 10 or the control circuit is abnormal, the main chip 22 of the internal unit can output an alarm and stop in time, so as to avoid abnormal operation of the internal fan of the air conditioner when the swing motor 10 is not turned on, and improve the reliability of the air conditioner 1 . At the same time, when the operating angle of the swing motor 10 deviates, the duty cycle of the PWM output can be adjusted to effectively correct the running angle of the swing motor 10 and improve the user experience of the air conditioner 1 .

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the description of the present application, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.

The air-conditioning equipment and the control device and control method of the swing motor provided by the embodiment of the application have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the application. The description of the above embodiment is only It is used to help understand the method and its core idea of this application; at the same time, for those skilled in the art, according to the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification does not It should be understood as a limitation on the present application.

Claims

A control device for a pendulum wind motor, including:

The main chip of the internal machine;

A conversion circuit electrically connected to the main chip of the internal machine, the conversion circuit is used to convert the control signal sent by the main chip of the internal machine into a driving signal, and the output end of the conversion circuit is electrically connected to the swing motor; and

A detection circuit, one end of the detection circuit is electrically connected to the main chip of the internal machine, and the other end of the detection circuit is electrically connected to the output end of the conversion circuit, and the detection circuit is used to obtain the connection between the conversion circuit and the The feedback signal after the pendulum wind motor is electrically connected, and transmits the feedback signal to the main chip of the internal machine.
The control device according to claim 1, wherein the internal machine main chip is used for:

When the internal machine main chip determines that the feedback signal is within the first preset range, the internal machine main chip determines that the feedback signal is normal, and acquires the working mode of the swing motor.
The control device according to claim 2, wherein the main chip of the internal machine is further configured to: when the swing motor is in the first working mode, the main chip of the internal machine controls the swing motor to operate in the first mode. operating within the angular range.
The control device according to claim 2, wherein the internal machine main chip is also used for:

When the swing motor is in the second working mode, the main chip of the internal machine determines whether the feedback signal is within a second preset range, and the second preset range is within the first preset range and less than the first preset range.
The control device according to claim 4, wherein the internal machine main chip is also used for:

If the feedback signal exceeds the second preset range, the main chip of the internal machine adjusts the control signal and sends a driving signal to make the swing motor run within a second angle range, and the second angle range within the first angular range and smaller than the first angular range.
The control device according to claim 5, wherein the driving signal is a pulse width modulation signal, and the main chip of the internal machine adjusts the control signal and sends out a driving signal to adjust the duty ratio of the driving signal to drive the The swing motor operates within the second angle range.
The control device according to claim 1, wherein, when it is determined that the feedback signal is abnormal, the main chip of the internal unit controls the swing motor to stop and outputs an alarm signal.
The control device according to claim 1, wherein the detection circuit comprises:

The triode includes a base, an emitter and a collector, and the collector is electrically connected to the power supply of the main chip of the internal machine;

a first resistor, one end of the first resistor is electrically connected to the base;

a second resistor, one end of the second resistor is electrically connected to the other end of the first resistor, and the other end of the second resistor is electrically connected to the output end of the conversion circuit;

a third resistor, one end of the third resistor is electrically connected to the other end of the first resistor, and the other end of the third resistor is electrically connected to the ground;

A fourth resistor, one end of the fourth resistor is electrically connected to the signal acquisition end of the internal machine main chip, and the other end of the fourth resistor is electrically connected to the emitter; and

A fifth resistor, one end of the fifth resistor is electrically connected to the other end of the fourth resistor, and the other end of the fifth resistor is electrically connected to the ground.
The control device according to claim 8, wherein the control device further comprises:

An interface seat, one interface of the interface seat is plugged and connected to the output end of the conversion circuit, and the other interface of the interface seat is plugged and connected to the swing motor.
A control method for a swing motor, which is applied to a control device for a swing motor, wherein the control device for a swing motor includes a main chip of an internal machine, a conversion circuit and a detection circuit, and the main chip of the internal machine is connected to the conversion circuit The circuit is electrically connected, one end of the detection circuit is electrically connected to the main chip of the internal machine, the other end of the detection circuit is electrically connected to the output end of the conversion circuit, and the output end of the conversion circuit is electrically connected to the swing motor , the control method includes:

The main chip of the internal machine controls the operation of the swing motor through the conversion circuit;

The main chip of the internal machine determines whether the feedback signal after the conversion circuit is electrically connected to the swing motor is abnormal;

When the main chip of the internal machine determines that the feedback signal is abnormal, the main chip of the internal machine controls the shutdown of the swing motor and outputs an alarm signal;

When the internal machine main chip determines that the feedback signal is normal, the internal machine main chip controls the swing motor to operate within the first angle range.
The control method according to claim 10, wherein when the internal machine main chip determines that the feedback signal is normal, the internal machine main chip controlling the swing motor to operate within the first angle range comprises:

When the internal machine main chip determines that the feedback signal is within the first preset range, the internal machine main chip determines that the feedback signal is normal, and acquires the working mode of the swing motor.
The control method according to claim 11, wherein when the main chip of the internal machine determines that the feedback signal is within a first preset range, the main chip of the internal machine determines that the feedback signal is normal, and acquires The working modes of the pendulum wind motor include:

When the swing motor is in the first working mode, the main chip of the internal unit controls the swing motor to operate within a first angle range.
The control method according to claim 11, wherein when the main chip of the internal machine determines that the feedback signal is within a first preset range, the main chip of the internal machine determines that the feedback signal is normal, and acquires The operating modes of the pendulum fan motor also include:

When the swing motor is in the second working mode, the main chip of the internal machine determines whether the feedback signal is within a second preset range, and the second preset range is within the first preset range and less than the first preset range.
The control method according to claim 13, wherein when the swing motor is in the second working mode, the main chip of the internal machine determines whether the feedback signal is within a second preset range, so The second preset range being within the first preset range and smaller than the first preset range includes:

If the feedback signal exceeds the second preset range, the main chip of the internal machine adjusts the control signal and sends a driving signal to make the swing motor run within a second angle range, and the second angle range within the first angular range and smaller than the first angular range.
An air conditioner, comprising:

pendulum wind motor;

The control device for the pendulum fan motor, including:

The main chip of the internal machine;

A conversion circuit electrically connected to the main chip of the internal machine, the conversion circuit is used to convert the control signal sent by the main chip of the internal machine into a driving signal, and the output end of the conversion circuit is electrically connected to the swing motor; and

A detection circuit, one end of the detection circuit is electrically connected to the main chip of the internal machine, and the other end of the detection circuit is electrically connected to the output end of the conversion circuit, and the detection circuit is used to obtain the connection between the conversion circuit and the The feedback signal after the pendulum wind motor is electrically connected, and transmits the feedback signal to the main chip of the internal machine.
The air conditioner according to claim 15, wherein the main chip of the internal unit is used for:

When the internal machine main chip determines that the feedback signal is within the first preset range, the internal machine main chip determines that the feedback signal is normal, and acquires the working mode of the swing motor.
The air conditioner according to claim 16, wherein the internal unit main chip is further configured to: when the swing motor is in the first working mode, the internal unit main chip controls the swing motor to operate in the first mode. operating within the angular range.
The air conditioner according to claim 16, wherein the main chip of the internal unit is further used for:

When the swing motor is in the second working mode, the main chip of the internal machine determines whether the feedback signal is within a second preset range, and the second preset range is within the first preset range and less than the first preset range.
The air conditioner according to claim 18, wherein the main chip of the internal unit is further used for:

If the feedback signal exceeds the second preset range, the main chip of the internal machine adjusts the control signal and sends a driving signal to make the swing motor run within a second angle range, and the second angle range within the first angular range and smaller than the first angular range.
The air conditioner according to claim 15, wherein the detection circuit comprises:

The triode includes a base, an emitter and a collector, and the collector is electrically connected to the power supply of the main chip of the internal machine;

a first resistor, one end of the first resistor is electrically connected to the base;

a second resistor, one end of the second resistor is electrically connected to the other end of the first resistor, and the other end of the second resistor is electrically connected to the output end of the conversion circuit;

a third resistor, one end of the third resistor is electrically connected to the other end of the first resistor, and the other end of the third resistor is electrically connected to the ground;

A fourth resistor, one end of the fourth resistor is electrically connected to the signal acquisition end of the internal machine main chip, and the other end of the fourth resistor is electrically connected to the emitter; and

A fifth resistor, one end of the fifth resistor is electrically connected to the other end of the fourth resistor, and the other end of the fifth resistor is electrically connected to the ground.