WO2018228162A1 - 带有净化功能的空调器及其控制方法 - Google Patents

带有净化功能的空调器及其控制方法 Download PDF

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Publication number
WO2018228162A1
WO2018228162A1 PCT/CN2018/088222 CN2018088222W WO2018228162A1 WO 2018228162 A1 WO2018228162 A1 WO 2018228162A1 CN 2018088222 W CN2018088222 W CN 2018088222W WO 2018228162 A1 WO2018228162 A1 WO 2018228162A1
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WIPO (PCT)
Prior art keywords
stepping motor
purifying
assembly
air conditioner
indoor unit
Prior art date
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Ceased
Application number
PCT/CN2018/088222
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English (en)
French (fr)
Inventor
陆建松
张飞
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Publication of WO2018228162A1 publication Critical patent/WO2018228162A1/zh
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Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular to an air conditioner with a purifying function and a control method thereof.
  • An air conditioner (Air Conditioner for short) is an appliance for directly supplying treated air to a closed space or area.
  • an air conditioner is generally used to adjust the temperature of a working environment. As people's demands for environmental comfort are getting higher and higher, the functions of air conditioners are becoming more and more abundant.
  • a further object of the present invention is to enable the purifying function of the air conditioner to be started and stopped as needed to prevent the purifying function from always working.
  • Another further object of the present invention is to improve the accuracy of the movement of the cleaning assembly and to avoid situations where the operation is not in place.
  • the invention provides a control method for an air conditioner with a purifying function, wherein a driving device and a purifying assembly are arranged in an indoor unit of the air conditioner, wherein the purifying assembly is driven by the driving device at an initial position of the air inlet opening from the indoor unit and Moving between the cleaning positions of the shielding air inlet and purifying the airflow entering the indoor unit when in the purging position, the driving device includes a stepping motor and a limit switch, and the stepping motor is used to provide power for moving the purifying assembly,
  • the bit switch is used to be triggered after the purifying component reaches the purging position to generate an in-position signal
  • the control method comprises: acquiring a preset step number parameter of the stepping motor; and detecting whether the stepping step parameter of the stepping motor is in an active state If the stepping parameter of the stepping motor is valid, when the trigger signal of the air conditioner exiting the purifying mode is received, the stepping motor is driven to operate according to the step number of the step, so that the driving device drives the
  • obtaining a trigger signal that the air conditioner enters the purifying mode driving the stepping motor to cause the driving device to move the purifying component to the purifying position, and after receiving the in-position signal, driving the stepping motor to stop and recording the step of moving the purifying component The number of steps into the motor.
  • the step of detecting whether the stepping step parameter of the stepping motor is in an active state comprises: comparing the step number parameter with a stroke step of the stepping motor during the movement of the recording purifying component, wherein the difference between the two is less than When the threshold is preset, the step parameter is determined to be in a valid state; when the difference between the two is greater than or equal to the preset threshold, determining the stroke step parameter is invalid, and the step of correcting the step parameter of the stepping motor includes: The step number of the stepping motor is corrected by the number of stroke steps of the stepping motor during the movement of the purifying component.
  • the method further comprises: after the cleaning component is located at the initial position, driving the stepping motor to operate, so that the driving device drives the cleaning component to complete a purification self-test from the initial position to the purification position and then returning to the initial position. process.
  • the step of ensuring that the purifying assembly is in the initial position comprises: driving the stepping motor to move in the direction of the purging position until the in-position signal is received, driving the stepping motor to the initial position to the step.
  • the step of detecting whether the stepping step parameter of the stepping motor is in an active state further comprises: acquiring whether the stepping motor runs according to the step number parameter to make the cleaning component complete the movement more than a set number of times, and if yes, determining the stroke The step parameter is invalid.
  • the method further comprises: performing feedback control on the refrigeration system of the air conditioner according to a preset feedback control scheme in the purifying mode.
  • the indoor unit is a wall-mounted indoor unit, and the initial position is a rear side of the front panel of the indoor unit, and the driving device further includes a rack and pinion transmission mechanism to transmit the power of the motor to the purifying assembly, and the limit switch is disposed on the rack on.
  • an air conditioner with a purifying function comprising: an indoor unit provided with a driving device and a purifying assembly, wherein the purifying assembly is driven by the driving device to leave the indoor unit
  • the initial position of the tuyere moves between the initial position of the air inlet and the cleaning position of the shielding air inlet, and purifies the airflow entering the indoor unit when in the purging position
  • the driving device includes a stepping motor and a limit switch, and the stepping motor is used to provide the cleaning component movement The power, the limit switch is used to be triggered after the purification component reaches the purification position to generate an in-position signal
  • the air conditioner further includes: a motor controller configured to: obtain a preset step parameter of the stepping motor; and detect Whether the stepping parameter of the stepping motor is in an active state; if the stepping step parameter of the stepping motor is valid, when the trigger signal of the air conditioner exiting the purifying mode is received, the stepping motor is driven to operate according to
  • the indoor unit is a wall-mounted indoor unit, and the initial position is a rear side of the front panel of the indoor unit, and the driving device further includes a rack and pinion transmission mechanism to transmit the power of the motor to the purifying assembly, and the limit switch is disposed on the rack on.
  • An air conditioner with a purifying function and a control method thereof wherein a purifying assembly connected to a driving device is disposed in the air conditioner, and the purifying assembly is driven by the driving device to move inside the indoor unit, and in the purifying mode, the purifying assembly is driven by the driving device Moving to the purging position at the air inlet to purify the airflow entering the indoor unit to improve the air quality of the indoor environment; in the non-purifying mode, the purifying assembly can also be driven by the driving device to move out of the air inlet to reveal the air inlet, thereby The airflow is allowed to directly enter the indoor unit without passing through the purification assembly. Therefore, the purifying function can be turned on as needed to extend the service life of the purifying assembly.
  • a limit switch is disposed in the driving device to detect a state in which the purifying component reaches the purifying position, thereby outputting an in-position signal indicating that the purifying component reaches the purifying position,
  • the parameter is corrected by the number of steps of the stepping motor during the movement from the initial position to the cleaning position to ensure that the stepping motor can accurately move the cleaning component.
  • the designated location to avoid the problem of movement in place or stepping, to ensure the normal realization of the purification function, and no additional noise.
  • the air conditioner with the purifying function and the control method thereof can verify the stepping step parameter of the stepping motor in various ways, and timely discover the failure condition of the stepping motor step parameter and correct it. .
  • FIG. 1 is a functional block diagram of an air conditioner with a purifying function according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a control method of an air conditioner with a purifying function according to an embodiment of the present invention
  • FIG. 3 is a schematic view showing the internal structure of an indoor unit when the purifying assembly of the air conditioner with a purifying function is in an initial position according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram showing the internal structure of an indoor unit when a purifying assembly of an air conditioner with a purifying function is in a purifying position according to an embodiment of the present invention
  • Figure 5 is a cross-sectional view showing the purifying assembly of the air conditioner with a purifying function in an initial position according to an embodiment of the present invention
  • FIG. 6 is an exploded perspective view of a purifying assembly and a driving device of an air conditioner with a purifying function according to an embodiment of the present invention
  • Figure 7 is a schematic exploded view of a driving device of an air conditioner with a purifying function according to an embodiment of the present invention
  • FIG. 8 is a schematic view showing a movement trajectory of a purifying assembly of an air conditioner with a purifying function according to an embodiment of the present invention.
  • This embodiment first provides an air conditioner with a purifying function, and the purifying function of the air conditioner can be turned on and off as needed.
  • the indoor unit of the air conditioner is provided with a driving device and a purifying assembly, wherein the purifying assembly is driven by the driving device to clean the position at the air inlet of the indoor unit (the position of the air inlet can be completely shielded inside the entrance grill) and the air inlet is removed.
  • the purifying component is located at the initial position of the air inlet when the purifying function is not turned on; after the purifying function is turned on, the purifying component is driven by the driving device to move to the purging position at the air inlet of the indoor unit, The airflow entering the indoor unit is purified.
  • a stepping motor is generally provided in the driving device for providing power for moving the cleaning component.
  • the stepping motor generally sets the number of stroke steps as a control parameter, that is, a stepping motor in the process of moving the cleaning component from the cleaning position to the initial position in advance.
  • the air conditioner with the purifying function of the embodiment is provided with a limit switch, and the limit switch is used to detect the state in which the purifying component reaches the purging position, and the step number parameter of the stepping motor is corrected accordingly.
  • the air conditioner 10 with a purifying function includes at least an indoor unit 100, a motor controller 180, and wherein the indoor unit 100 is provided with The driving device 140 (including the stepping motor 141 and the limit switch 149) and the cleaning assembly 150.
  • the purifying assembly 150 is driven by the driving device 140 to move between the purging position of the air inlet of the shielding indoor unit 100 and the initial position of the air inlet, and to purify the airflow entering the indoor unit 100 when the purifying unit 150 is in the purifying position.
  • the purification component 150 can be a combination of the following purification modules or purification modules: an electrostatic adsorption module, a plasma purification module, a negative ion generation module, a ceramic activated carbon module, a pleated expansion filter module, and the like.
  • the air conditioner 10 of the present embodiment can realize the cooling and heating by the compression refrigeration cycle, and the compression refrigeration cycle realizes the heat transfer by the refrigerant in the compression phase change cycle of the compressor, the condenser, the evaporator, and the throttle device.
  • the refrigeration system can also be provided with a reversing valve to change the flow direction of the refrigerant, so that the indoor heat exchanger alternately functions as an evaporator or a condenser to realize a cooling or heating function. Since the compression refrigeration cycle in the air conditioner is well known to those skilled in the art, its working principle and configuration will not be described again.
  • the compressor can use an inverter compressor
  • the throttle device can use an electronic expansion valve whose opening degree is adjustable.
  • Stepper motor 141 is used to provide power to move purification assembly 150
  • limit switch 149 is used to generate an in-position signal that purge assembly 150 reaches the purge position.
  • the limit switch 149 can be disposed on the transmission mechanism of the driving device 140, and is triggered by the cleaning assembly 150 that is moved in position. In other alternative embodiments, the limit switch 149 can also be disposed at the top of the housing of the air conditioner.
  • the purification unit 150 of the purification position is in a position to be in conflict.
  • the limit switch 149 can be implemented by various contact switches, Hall switches, and the like.
  • the control process of the motor controller 180 may include: acquiring a stroke step parameter of the preset stepping motor 141; detecting whether the step number parameter of the stepping motor 141 is in an active state; if the step number parameter of the stepping motor 141 is valid
  • the driving stepping motor 141 is operated according to the stroke step parameter, so that the driving device 140 drives the cleaning assembly 150 to move to the initial position; if the stepping motor 141 has the stroke steps
  • the parameter fails, and the number of steps of the stepping motor during the movement of the cleaning assembly from the initial position to the cleaning position is re-recorded, and the step number parameter of the stepping motor 141 is corrected using the re-recorded line progression number.
  • the motor controller 180 may further drive the stepping motor 141 to cause the driving device 140 to move the purification assembly 150 to the purification position after acquiring the trigger signal of the air conditioner 10 to enter the purification mode, and drive the stepping motor 141 after receiving the in-position signal.
  • the machine stops and records the number of steps of the stepper motor 141 during the movement of the cleaning assembly 150.
  • the following purging self-test process is performed to ensure that after the purifying assembly 150 is in the initial position, the stepping motor 141 is driven to operate, so that the driving device 140 drives the purifying assembly 150 to complete once.
  • the purge self-test process is moved to the purge position and then returned to the initial position. Thereby, the operational reliability of the driving device 140 is improved.
  • FIG. 2 is a schematic diagram of a control method of the air conditioner with a purification function according to an embodiment of the present invention.
  • the control method can generally include:
  • Step S202 acquiring a stroke step parameter of the preset stepping motor 141;
  • Step S204 detecting whether the step number parameter of the stepping motor 141 is in an active state; determining whether the stroke step parameter is valid has various ways, for example, if the downtime of the air conditioner 10 is too long, the stroke step parameter is considered to be invalid; If the number of times the cleaning component completes the movement according to the stroke step parameter is more than the set number of times, the stroke step parameter is considered to be invalid; the other judgment manner is to compare the stroke step parameter with the actual progress of the stepping motor 141. In comparison, if the deviation is large, the stroke step parameter is considered invalid.
  • the air conditioner 10 is not operated for a long time, for example, the air conditioner 10 is not powered for a long time in spring or autumn, and is in a long-term parking state.
  • the lubrication measures of the driving device 140 may be deteriorated, resulting in stepping.
  • the number of stroke steps of the motor 141 changes, so if the down time of the air conditioner 10 is too long, the stroke step parameter is considered to be invalid.
  • the air conditioner 10 continues to operate for a long time, and the cleaning assembly 150 undergoes multiple movements, which may cause a change in the number of steps of the stepping motor 141 due to wear between the components of the driving device 140. Therefore, the stepping motor 141 obtains whether the number of times the cleaning unit 150 completes the movement according to the stroke step parameter exceeds the set number of times (for example, 50 times, the specific number of times may be set according to the condition of the driving device 140), and if so, determines the number of stroke steps.
  • the parameter is invalid. That is, after the current stroke step parameter is used for the set number of times, it needs to be corrected again.
  • the number of stroke steps of the stepping motor 141 during the movement of the cleaning assembly 150 from the initial position to the cleaning position is recorded, and the stroke step parameter is compared with the number of stroke steps of the stepping motor 141 during the movement of the recording purification assembly 150.
  • the determined step number parameter is in an active state; when the difference between the two is greater than or equal to the preset threshold, it is determined that the travel step parameter is invalid.
  • Step S206 if the step number parameter of the stepping motor 141 is valid, when the trigger signal of the air conditioner 10 exiting the purification mode is received, the stepping motor 141 is driven to operate according to the stroke step parameter, and the stepping motor 141 is driven according to the number of stroke steps.
  • the parameter is operated to cause the driving device 140 to drive the cleaning assembly 150 to move;
  • the trigger signal of the air conditioner 10 entering the purification mode is obtained, and the stepping motor 141 is driven to cause the driving device 140 to move the cleaning assembly 150 to the cleaning position, and after receiving the in-position signal, the driving step is driven.
  • the incoming motor 141 is stopped and the number of steps of the stepping motor 141 during the movement of the cleaning assembly is recorded.
  • the trigger signal entering the purification mode may include: an air pollution overrun signal reported by the air quality detecting device, a start operation signal from the user, and a timing start signal.
  • the air conditioner 10 may be triggered to enter. Purification mode.
  • the user can manually trigger the air conditioner 10 to enter the purification mode through the remote controller or other air conditioner human-machine interaction interface.
  • the air conditioner 10 can perform the cleaning periodically according to the running time, for example, the accumulated work for 8 hours, and the purification is started for 1 hour.
  • the trigger signal of the above air conditioner 10 entering the purification mode can be set according to the user's requirements for air purification.
  • the trigger signal for exiting the purification mode may also be various, and may be an air cleaning signal reported by the air quality detecting device 180, a shutdown operation signal from the user, and a timing expiration signal, thereby automatically turning off the cleaning according to the user's operation.
  • step S208 if the step number parameter of the stepping motor 141 is invalid, the number of steps of the stepping motor 141 during the movement from the initial position to the cleaning position of the purification assembly 150 is re-recorded, and the re-recorded line progression number is used to the stepping motor 141.
  • the stroke step parameters are corrected.
  • a self-test can be performed to determine the state of the driving device 140.
  • the specific self-checking method includes: after the cleaning component 150 is located at the initial position, the driving stepping motor 141 is driven to drive the driving device 140.
  • the purification assembly 150 completes a purge self-test process from the initial position to the purge position and then back to the initial position.
  • the step of ensuring that the purification assembly 150 is located at the initial position comprises: driving the stepping motor 141 to move in the direction of the purification position until receiving the in-position signal, driving the stepping motor 141 to the direction of the initial position until the step is stepped (for example, stepping the motor) The number of steps with a certain margin is run).
  • the driving device 140 moves the purifying assembly 150 to the purging position, and after receiving the in-position signal, the air conditioner 10 can be operated in the purifying mode. Since the wind resistance of the airflow generated by the indoor unit fan in the purifying mode is significantly different, after entering the purifying mode, the airflow passes through. Filtration will inevitably lead to attenuation of the heat exchange effect of the indoor unit heat exchanger, which is prone to high load problems. Therefore, the refrigeration system of the air conditioner 10 can be feedback controlled according to a preset feedback control scheme in the purification mode.
  • the heat exchanger tube temperature of the indoor unit 100 when entering the purification mode may be detected, and the heat exchanger tube temperature setting of the indoor unit 100 is set in the purification mode according to the entering the purification mode.
  • the fan is feedback controlled.
  • the airflow is generated by the air purification unit, which affects the heat exchange efficiency of the heat exchanger of the indoor unit 100, and can be adjusted accordingly to meet the heat exchange efficiency of the heat exchanger of the indoor unit 100.
  • the wind speed of the indoor unit fan for example, increases as the difference between the heat exchanger of the indoor unit 100 and the target tube temperature increases, and the wind speed of the indoor unit fan increases accordingly.
  • the compressor and the throttling device of the refrigeration system may be controlled to further reduce the effect on the cooling and heating of the air conditioner 10.
  • the fan of the indoor unit can be feedback-controlled according to the difference.
  • the target temperature difference threshold for example, 3 degrees
  • the fan of the indoor unit can be feedback-controlled according to the difference.
  • the lower the temperature of the heat exchanger tube the faster the fan speed of the indoor unit. If the increase of the indoor fan speed does not ensure that the heat exchanger tube temperature is maintained within the first temperature difference threshold within the first tube temperature difference, the opening of the throttling device of the compression refrigeration cycle is increased, if the heat exchanger tube is still not guaranteed
  • the compressor is down-converted to prevent the indoor unit heat exchanger temperature from being too low and a high load.
  • the fan of the indoor unit may be feedback-controlled according to the difference.
  • the target temperature difference threshold for example, 3 degrees
  • the fan of the indoor unit may be feedback-controlled according to the difference.
  • the higher the temperature of the heat exchanger tube the faster the fan speed of the indoor unit. If the increase of the indoor fan speed does not ensure that the heat exchanger tube temperature is maintained within the first temperature difference threshold within the first tube temperature difference, the opening of the throttling device of the compression refrigeration cycle is increased, if the heat exchanger tube is still not guaranteed
  • the compressor is down-converted, thereby preventing the indoor unit heat exchanger temperature from being too high, resulting in high load.
  • the above feedback control may be controlled by PID (proportion-integral-derivative), or other feedback control methods may be used.
  • the control process may include: detecting the heat exchanger tube temperature of the indoor unit in real time, and calculating and calculating the target tube The difference of the temperature; when the difference is less than the preset first temperature difference threshold, the fan of the indoor unit is feedback-controlled according to the difference; when the difference is greater than or equal to the first temperature difference threshold, the air conditioner is compressed according to the difference The refrigeration cycle performs feedback control.
  • the step of performing feedback control on the compression refrigeration cycle of the air conditioner according to the difference includes: increasing the opening degree of the throttle device of the compression refrigeration cycle when the difference is greater than or equal to the first temperature difference threshold and less than the second temperature difference threshold; When the difference is greater than or equal to the second temperature difference threshold, the compressor of the compression refrigeration cycle is down-converted, wherein the second temperature difference threshold is greater than the first temperature difference threshold.
  • the first temperature difference threshold and the second temperature difference threshold may be configured according to specifications and usage requirements of the indoor unit heat exchanger, for example, setting the first temperature difference threshold to plus or minus 3 degrees Celsius and setting the second temperature difference threshold to plus or minus 5 degrees Celsius.
  • the control of the indoor unit fan can also be reduced. Small noise, improve the user experience.
  • the wind speed level of the indoor unit fan is gradually decreased during the moving process of the purifying assembly 150, so that the wind speed is gradually decreased as the area of the air inlet opening of the purifying unit 150 is increased. In order to avoid the noise generated by the turbulent flow during the process of entering the air inlet, the influence on the user experience is reduced.
  • the frequency of the compressor is controlled accordingly to avoid abnormal load of the refrigeration system caused by the decrease in air volume.
  • the wind speed level of the indoor unit fan is increased step by step, and the compressor operation frequency is restored, the influence on the cooling or heating of the air conditioner is reduced, and the indoor unit 100 can also be changed during the purification process.
  • the heat exchanger tube temperature provides feedback control to the indoor unit fan to ensure that the refrigeration system load remains stable.
  • the air conditioner with a wall-mounted indoor unit is taken as an example to describe the structure and working principle of the air conditioner with a purifying function.
  • the initial position may be the rear side of the front panel of the indoor unit 100, and the driving device further includes a rack and pinion transmission mechanism to transmit the power of the stepping motor 141 to the cleaning assembly 150, and the limit switch 149 may be disposed on the rack and pinion transmission mechanism. On the rack.
  • FIG. 3 is a schematic diagram showing the internal structure of the indoor unit 100 when the purification assembly 150 of the air conditioner 10 with a purifying function is in an initial position according to an embodiment of the present invention
  • FIG. 4 is a cleaning function according to an embodiment of the present invention
  • FIG. 5 is a cross-sectional view showing the internal structure of the indoor unit 100 when the purifying assembly 150 of the air conditioner 10 is in the purging position
  • FIG. 5 is a cross-sectional view of the purifying assembly 150 of the air conditioner 10 with the purifying function in an initial position according to an embodiment of the present invention.
  • FIGS. 3 and 4 in order to show internal components, the front panel 130 of the indoor unit 100 is hidden.
  • the indoor unit 100 of the air conditioner 10 with a purifying function may generally include a body skeleton 110, a casing 120, a front panel 130, a driving device 140, a purifying assembly 150, and the like.
  • the body frame 110 constitutes an accommodation space of the heat exchanger 160 and the fan 170.
  • the cover 120 covers the front portion of the body frame 110 to close the heat exchanger 160 and the fan 170.
  • the top of the cover 120 is formed with an air inlet 121, and the cover is formed.
  • the 120 is detachably fixed to the body frame 110, and the front panel 130 is disposed at a front portion of the casing 120 to form a front surface of the indoor unit 100, and the front panel 130 is detachably mounted on the casing 120.
  • the purifying assembly 150 may be driven by the driving device 140 to move from an initial position inside the front panel 130 to a purging position that completely shields the air inlet 121, and purifies the airflow entering the indoor unit 100 at the purifying position.
  • the purifying assembly 150 can also be driven by the driving device 140 to move from the inner side of the air inlet 121 to the inner side of the front panel 130 to expose the air inlet 121, and the airflow does not directly enter the indoor unit 100 through the purifying assembly 150, and the purifying assembly 150 does not generate wind resistance. Reduce the energy consumption of air conditioners.
  • the limit switch 149 When the purifying assembly moves to the purging position inside the air inlet 121, the limit switch 149 is triggered to stop the operation of the driving device 140 and prevent the motor from rotating. Through the trigger signal of the limit switch 149, it can be determined that the purifying assembly 150 is moved into position, and at this time, the wind speed level of the indoor unit fan 170 can be stopped.
  • a limit switch 149 can be placed on top of the casing 120 and in a position that can be triggered after the cleaning assembly 150 is moved into position. In other embodiments, the limit switch 149 can also be disposed at a corresponding position of the transmission mechanism of the driving device 140.
  • the purifying assembly 150 is driven by the driving device 140 to move from the inner side of the front panel 130 to the purging position of the full shielding air inlet 121, and the purifying assembly 150 is in full contact with the air to enter the indoor unit.
  • the airflow of 100 is fully purified to enhance the air quality of the indoor environment.
  • the wind speed of the indoor unit fan 170 is adjusted accordingly to avoid noise effects.
  • the purification assembly 150 When the purification device is exited, the purification assembly 150 is driven by the driving device 140 to move from the inner side of the air inlet 121 to the inner side of the front panel 130, and the air inlet 121 is exposed.
  • the airflow does not directly enter the indoor unit 100 through the purification assembly 150, and the purification assembly 150 does not enter.
  • the airflow of the air inlet 121 generates resistance, making the air conditioner more energy efficient and environmentally friendly.
  • the driving device 140 may be two, and the two driving devices 140 are respectively disposed at the lateral side frames of the casing 120 and are oppositely disposed.
  • the lateral direction refers to the longitudinal direction of the casing 120
  • the casing 120 is formed with an opening from the top to the front
  • the portion of the casing 120 at the opening constitutes the frame of the casing 120
  • the opening of the casing 120 at the top is the air inlet. 121.
  • the front opening of the casing 120 is covered with a front panel 130.
  • the cleaning assembly 150 is located between the two driving devices 140 and is respectively connected to the two driving devices 140, and the two driving devices 140 operate in synchronization. Thereby, the cleaning assembly 150 is driven by the driving device 140 to move between the inside of the front panel 130 and the inside of the air inlet 121.
  • FIG. 6 is an exploded perspective view of the purification assembly 150 and the driving device 140 of the air conditioner 10 with a purifying function according to an embodiment of the present invention
  • FIG. 7 is a driving of the air conditioner 10 with a purifying function according to an embodiment of the present invention.
  • the drive device 140 can include a rail assembly, a motor 141, a gear 142, a curved rack 143, and a link 146.
  • the rail assembly may be disposed at a frame at a lateral side end of the casing 120.
  • the purge assembly 150 can also be coupled to the curved rack 143 via a link 146.
  • the first end of the connecting rod 146 is rotatably connected to the curved rack 143, the motor 141 drives the gear 142 to rotate, the gear 142 drives the curved rack 143 to slide, and the curved rack 143 drives the connecting rod 146 connected thereto to rotate. And slide.
  • the second end of the link 146 is rotatably coupled to the purge assembly 150, and the purge assembly 150 is rotatably and slidably engaged with the rail assembly by the link 146. Thereby, the purification assembly 150 is moved between the inside of the front panel 130 and the inside of the air inlet 121.
  • the rail assembly may include a base 144 and a side cover 145 disposed at a frame at a lateral side end of the casing 120, for example, the base 144 may be fixed to a frame at a lateral side end of the casing 120 by screws, and the side cover 145 is buckled
  • the side cover 145 and the base 144 form a space for accommodating the gear 142 and the curved rack 143.
  • the output shaft of the motor 141 is connected to the gear 142 through the base 144, and the motor 141 passes through the gear.
  • the 142 drives the curved rack 143 to slide.
  • the link 146 is disposed in the receiving space formed by the base 144 and the side cover 145.
  • the first end of the link 146 is rotatably coupled to the curved rack 143, and the second end of the link 146 is rotationally coupled to the cleaning assembly.
  • the driving purification assembly 150 is rotatably and slidably engaged with the rail assembly, thereby causing the cleaning assembly 150 to move between the inside of the front panel 130 and the inside of the air inlet 121.
  • the side of the base 144 facing the curved rack 143 may further be formed with an arcuate groove 144-4.
  • the side of the curved rack 143 adjacent to the base 144 is provided with at least one second roller 143-3, and the second roller 143 The -3 can be received in the arcuate slot 144-4 and slidably coupled to the arcuate slot 144-4. Thereby, the curved rack 143 can be stably slid along the curved groove 144-4, thereby improving the stability of the operation of the driving device 140.
  • a side of the side cover 145 away from the base 144 may be formed with a second guide rail 145-7.
  • the purifying assembly 150 is rotatably and slidably engaged with the second rail 145-7 by the connecting rod 146 to be inside the front panel 130. Movement with the inside of the air inlet 121.
  • the motor 141 drives the curved rack 143 to slide along the curved groove 144-4 through the gear 142.
  • the link 146 slides along the curved rack 143 and is between the curved rack 143 and the curved rack 143.
  • the relative movement of the rotation is generated, and the purifying assembly 150 is moved by the connecting rod 146 and moves along the path of the second rail 145-7 along the second rail 145-7, thereby realizing the purifying assembly 150 inside the front panel 130 and inside the air inlet 121. Exercise.
  • the second end of the connecting rod 146 may be provided with a positioning strut 146-1, and the positioning strut 146-1 is rotatably connected to the purifying assembly 150 through the second rail 145-7.
  • the guide rail 145-7 is formed with a hollowed-out area in the extending direction thereof, and the positioning strut 146-1 is rotatably connected to the purifying assembly 150 through the hollowed-out area.
  • the limit switch 149 When the limit switch 149 is disposed at a corresponding position of the transmission mechanism of the driving device 140, the limit switch 149 may be disposed on the second guide rail 145-7.
  • the purifying assembly 150 is moved by the connecting rod 146 to the inside of the air inlet 121 and completely shields the air inlet 121, the positioning strut 146-1 is in contact with the corresponding limit switch 149, the limit switch 149 is triggered, and the output shaft of the motor 141 is stopped. Rotation, thereby preventing the motor 141 from rotating the step noise and reducing the wear of the gear 142 and the rack 143.
  • the second guide rail 145-7 may include a first curved section 145-7-1 and a second curved section 145-7-2 that is in contact with the first curved section 145-7-1, the first curved section 145 -7-1 is different from the curvature of the second curved segment 145-7-2, that is, the degree of bending of the first curved segment 147-1-1 and the second curved segment 147-1-2 is different.
  • the first arcuate section 145-7-1 can be located at a lateral side end of the casing 120 at a position corresponding to the air inlet 121,
  • the two curved segments 145-7-2 extend forward and downward to the inside of the front panel 130.
  • the arcuate slot 144-4 can also extend to the inside of the front panel 130, and the second arcuate section 145-7-2 can be located outside of the arcuate slot 144-4, that is, with the arcuate slot 144-4
  • the second curved section 145-7-2 is closer to the front panel 130 than the position.
  • the motor 141 drives the gear 142 to rotate.
  • the gear 142 drives the curved rack 143 to slide in the arcuate groove 144-4.
  • the link 146 slides along the curved rack 143 and is curved.
  • the relative movement between the racks 143 is generated, and the purifying assembly 150 is moved by the connecting rod 146 to move between the position of the irregularly shaped second rail 145-7 at the inner side of the front panel 130 and the inner side of the air inlet 121. And the movement path of the purification assembly 150 is located outside the curved groove 144-4.
  • the movement of the link 146 to drive the cleaning assembly 150 with the irregularly shaped second rail 145-7 takes up less space, and the internal space of the air conditioner indoor unit 100 can be saved.
  • Figure 8 is a schematic view showing the movement trajectory of the purification assembly 170 of the air conditioner 10 with a purifying function according to an embodiment of the present invention, in which A is defined by a first curved section 145-7-1 and a first curved section 145. a path of the irregularly shaped second rail 145-7 where the second arc segments 145-7-2 having different radians are connected, and B is the path of the curved first rail 145-3. The irregularly shaped second rail 145-7 is located outside of the curved first rail 145-3.
  • the purifying assembly 150 is directly moved by the curved rack 143 along the curved first rail 145-3, the movement trajectory of the purifying assembly 150 is located outside, and if the purifying assembly 150 is driven by the connecting rod 146, the trajectory of the purifying assembly 150 Should be on the inside. Therefore, the space required for the movement of the cleaning unit 150 to move along the irregularly shaped second rail 145-7 by the connecting rod 146 is smaller, and more internal space of the indoor unit 100 can be given without increasing the volume of the indoor unit 100. While the drive unit 140 and the purification assembly 150 are disposed, sufficient space can be provided for the arrangement of the heat exchanger 160, the fan 170, and other components.
  • the purification assembly 150 can be detachably coupled to the drive unit 140 to facilitate cleaning and replacement of the purification assembly 150.
  • the purification assembly 150 can include a cradle and a purification module 151 disposed on the cradle.
  • the shape and the size of the purification module 151 can be determined according to the internal space of the indoor unit 100 and the size of the air inlet 121.
  • the purification module 151 can be curved.
  • the bracket may include two oppositely disposed connecting portions 152.
  • the two connecting portions 152 are directly coupled to the corresponding curved racks 143.
  • the two connecting portions 152 are rotatably coupled to the corresponding links 146.
  • the purification module 151 is disposed on the connection portion 152 and located between the two connection portions 152.
  • the two connecting portions 152 may be oppositely disposed at two opposite end sides of the cleaning module 151, and the first end of the connecting portion 152 is rotatably connected with the second end of the connecting rod 146, and the second end of the connecting portion 152 is The two guide rails 145-7 are slidingly fitted.
  • a cross bar 153 may be disposed between the connecting portions 152.
  • the two ends of the cross bar 153 are respectively connected to the two connecting portions 152.
  • the cross bar 153 has a recess for facilitating the cleaning module 151 to be engaged therein. In the groove.
  • the middle portion of the cross bar 153 may be provided with a joint portion 154 to connect the two purifying modules 151, and the side edges of the two purifying modules 151 at the position of the joint portion 154 abut each other.
  • the purifying assembly 150 moves to the inner side of the front panel 130 in the non-purifying position (initial position); after the purifying function is turned on, the purifying assembly 150 is driven by the driving device, and moves to the inner side of the air inlet 121 to completely cover the inside.
  • the tuyere 121 is in a purifying position to purify the airflow entering the indoor unit 100.
  • the air speed adjustment is performed on the indoor unit fan 170, and at the same time, the air conditioner 100 is considered.
  • the cooling and heating load is stable, and the compressor and the throttling device can be further controlled.
  • the air conditioner with purification function and the control method thereof of the embodiment use the step of the stepping motor in the process of moving the cleaning component from the initial position to the cleaning position to correct the parameter, thereby ensuring that the stepping motor can accurately clean the component Move to the specified position to avoid the problem of the movement not being in place or stepping, ensuring the normal realization of the purification function without additional noise. .

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  • Chemical & Material Sciences (AREA)
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Abstract

一种带有净化功能的空调器的控制方法，空调器的室内机（100）内设置有驱动装置（140）以及净化组件（150），驱动装置（140）包括步进电机（141）以及限位开关（149），限位开关（149）用于在净化组件（150）到达净化位置后被触发，以生成到位信号，并且该控制方法包括：获取预先设置的步进电机的行程步数参数（S202）；若该参数有效，在接收到空调器退出净化模式的触发信号时，驱动步进电机按照行程步数参数运转，以使驱动装置带动净化组件移动至初始位置（S206）；若行程步数参数失效，重新记录净化组件在初始位置至净化位置移动过程中步进电机的步数，并对步进电机的行程步数参数进行修正（S208）。该方法可以保证步进电机（141）精准地将净化组件（150）移动至指定的位置，避免出现移动不到位或者过步的问题。

Description

带有净化功能的空调器及其控制方法 技术领域
本发明涉及本发明涉及空调技术领域，特别是涉及带有净化功能的空调器及其控制方法。
背景技术
空气调节器(Air Conditioner，简称空调器)是用于向封闭的空间或区域直接提供经过处理的空气的电器，在现有技术中，空调器一般用于对工作环境的温度进行调节。随着人们对环境要求舒适度的要求越来越高，空调器的功能也越来越丰富。
由于人们对空气洁净程度的要求越来越高，目前出现了一些在空调器内设置净化装置的方案，其对进入空调器的部分空气进行净化，然而这些带有净化功能的空调器存在以下问题：由于仅能对部分空气进行净化，净化效果较差；另外，由于净化装置长时间工作，即使空气处于非常清洁的情况下，仍然保持工作，使得净化装置使用寿命降低，并且还容易带来二次污染。
发明内容
本发明的一个目的是要提供一种要提供一种克服上述问题或者至少部分地解决上述问题的带有净化功能的空调器及其控制方法。
本发明的进一步的目的是要使得空调器的净化功能可以按需要启停，避免净化功能始终工作。
本发明的另一个进一步的目的是提高净化组件移动的精度，避免出现运行不到位的情况。
本发明提供了一种带有净化功能的空调器的控制方法，其中空调器的室内机内设置有驱动装置以及净化组件，其中净化组件由驱动装置带动在离开室内机的进风口的初始位置与遮蔽进风口的净化位置之间移动，并在处于净化位置时对进入室内机的气流进行净化，驱动装置包括步进电机以及限位开关，步进电机用于提供使净化组件移动的动力，限位开关用于在净化组件到达净化位置后被触发，以生成到位信号，并且控制方法包括：获取预先设置的步进电机的行程步数参数；检测步进电机的行程步数参数是否处于有效状态；若步进电机的行程步数参数有效，在接收到空调器退出净化模式的触发信号时，驱动步进电机按照行程步数参数运转，以使驱动装置带动净化组件 移动至初始位置；若步进电机的行程步数参数失效，重新记录净化组件在初始位置至净化位置移动过程中步进电机的步数，并使用重新记录的行进步数对步进电机的行程步数参数进行修正。
可选地，获取空调器进入净化模式的触发信号，驱动步进电机使驱动装置将净化组件移动至净化位置，并在接收到到位信号后，驱动步进电机停机并记录净化组件移动过程中步进电机的行程步数。
可选地，检测步进电机的行程步数参数是否处于有效状态的步骤包括：将行程步数参数与记录净化组件移动过程中步进电机的行程步数进行比较，在两者的差值小于预设阈值时，确定行程步数参数处于有效状态；在两者的差值大于或等于预设阈值时，确定行程步数参数失效，对步进电机的行程步数参数进行修正的步骤包括：使用净化组件移动过程中步进电机的行程步数修正步进电机的行程步数参数。
可选地，在空调器上电启动之后还包括：确保净化组件位于初始位置后，驱动步进电机运转，使驱动装置带动净化组件完成一次从初始位置到净化位置然后返回初始位置的净化自检过程。
可选地，确保净化组件位于初始位置的步骤包括：驱动步进电机向净化位置的方向移动直至接收到到位信号后，驱动步进电机向初始位置的方向直至过步。
可选地，检测步进电机的行程步数参数是否处于有效状态的步骤还包括：获取步进电机按照行程步数参数运转使净化组件完成移动的次数是否超过设定次数，若超过，确定行程步数参数失效。
可选地，驱动步进电机停机之后还包括：按照净化模式下预设的反馈控制方案对空调器的制冷系统进行反馈控制。
可选地，室内机为壁挂式室内机，初始位置为室内机的前面板后侧，驱动装置还包括齿轮齿条传动机构，以将电机的动力传递至净化组件，限位开关设置于齿条上。
根据本发明的另一个方面，还提供了一种带有净化功能的空调器，其包括：室内机，其内设置有驱动装置以及净化组件，其中净化组件由驱动装置带动在离开室内机的进风口的初始位置与遮蔽进风口的净化位置之间移动，并在处于净化位置时对进入室内机的气流进行净化；驱动装置包括步进电机以及限位开关，步进电机用于提供净化组件移动的动力，限位开关用于在净化组件到达净化位置后被触发，以生成到位信号；并且空调器还包括：电机控制器，配置成：获取预先设置的步进电机的行程步数参数；检测步进电机 的行程步数参数是否处于有效状态；若步进电机的行程步数参数有效，在接收到空调器退出净化模式的触发信号时，驱动步进电机按照行程步数参数运转，以使驱动装置带动净化组件移动至初始位置；若步进电机的行程步数参数失效，重新记录净化组件在初始位置至净化位置移动过程中步进电机的步数，并使用重新记录的行进步数对步进电机的行程步数参数进行修正。
可选地，室内机为壁挂式室内机，初始位置为室内机的前面板后侧，驱动装置还包括齿轮齿条传动机构，以将电机的动力传递至净化组件，限位开关设置于齿条上。
本发明的带有净化功能的空调器及其控制方法，在空调器内设置与驱动装置连接的净化组件，净化组件由驱动装置驱动在室内机内部移动，在净化模式下净化组件由驱动装置驱动移动至进风口处的净化位置，从而对进入室内机的气流进行净化，提升室内环境的空气质量；在非净化模式下，净化组件还可由驱动装置的驱动移出进风口，以显露进风口，从而使得气流不经过净化组件直接进入室内机。从而可以根据需要开启净化功能，延长了净化组件的使用寿命。
进一步地，本发明的带有净化功能的空调器及其控制方法，驱动装置中设置限位开关，对净化组件到达净化位置的状态进行检测，从而输出指示净化组件到达净化位置的到位信号，在驱动装置的步进电机行程步数参数失效的情况下，利用净化组件在初始位置至净化位置移动过程中步进电机的步数对该参数进行修正，保证步进电机可以精准地将净化组件移动至指定的位置，避免出现移动不到位或者过步的问题，保证了净化功能的正常实现，并且不会带来额外的噪音。
更进一步的，本发明的带有净化功能的空调器及其控制方法，可以通过多种方式对步进电机行程步数参数进行验证，及时发现步进电机行程步数参数的失效情况并进行修正。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的带有净化功能的空调器的功能框图；
图2是根据本发明一个实施例的带有净化功能的空调器的控制方法的示意图；
图3是根据本发明一个实施例的带有净化功能的空调器的净化组件处于初始位置时的室内机的内部结构示意图；
图4是根据本发明一个实施例的带有净化功能的空调器的净化组件处于净化位置时的室内机的内部结构示意图；
图5是根据本发明一个实施例的带有净化功能的空调器的净化组件处于初始位置时的剖视图；
图6是根据本发明一个实施例的带有净化功能的空调器的净化组件与驱动装置的分解示意图；
图7是根据本发明一个实施例的带有净化功能的空调器的驱动装置的爆炸示意图；以及
图8是根据本发明一个实施例的带有净化功能的空调器的净化组件移动轨迹示意图。
具体实施方式
本实施例首先提供了一种带有净化功能的空调器，该空调器的净化功能可以根据需要进行开启和关闭。空调器的室内机内设置有驱动装置以及净化组件，其中净化组件由驱动装置带动在室内机的进风口处的净化位置(可为进风格栅内侧完全遮蔽进风口的位置)与移出进风口的初始位置之间移动，在不开启净化功能时，净化组件位于移出进风口的初始位置；在开启净化功能后，净化组件由驱动装置带动，移动至室内机的进风口处的净化位置，对进入室内机的气流进行净化。
驱动装置中一般设置步进电机，用于提供净化组件移动的动力，步进电机一般通过设置行程步数作为控制参数，也即预先设置净化组件从净化位置移动至初始位置的过程中步进电机所需运转的步数，在一次移动过程中，在步进电机完成预先设置的步数后即认为净化组件运动到位，但是由于空调器长时间运行或者润滑油减少会导致传动机构摩擦阻力增加，逐渐出现净化组件移动不到位的情况或者净化组件提前移动到位(过步)，前者会导致净化效果下降，后者会因为过步造成的噪音影响用户的使用体验。针对上述现象，本实施例的带有净化功能的空调器，设置了限位开关，利用限位开关检测净化组件到达净化位置的状态，相应对步进电机的行程步数参数进行修正。
图1是根据本发明一个实施例的带有净化功能的空调器10的功能框图， 该带有净化功能的空调器10至少包括：室内机100、电机控制器180、其中室内机100内设置有驱动装置140(包括步进电机141以及限位开关149)、净化组件150。其中净化组件150由驱动装置140带动在遮蔽室内机100的进风口的净化位置与移出进风口的初始位置之间移动，在净化组件150处于净化位置时对进入室内机100的气流进行净化。净化组件150可以为以下净化模块或者净化模块的组合：静电吸附模块、等离子净化模块、负离子发生模块、陶瓷活性炭模块、褶式拓展滤面模块等。
本实施例的空调器10可以利用压缩制冷循环来实现制冷制热，压缩制冷循环利用制冷剂在压缩机、冷凝器、蒸发器、节流装置的压缩相变循环实现热量的传递。在空调器中，制冷系统还可以设置换向阀，改变制冷剂的流向，使室内机换热器交替作为蒸发器或冷凝器，实现制冷或者制热功能。由于空调器中压缩制冷循环是本领域技术人员所习知，其工作原理和构造再次不做赘述。在本实施例中，压缩机可以使用变频压缩机，节流装置可以使用开度可调的电子膨胀阀。
步进电机141用于提供使净化组件150移动的动力，限位开关149用于生成净化组件150到达净化位置的到位信号。限位开关149可以设置在驱动装置140的传动机构上，被运动到位的净化组件150触发，在另一些可选实施例中，限位开关149也可以设置于与空调器的罩壳顶部与位于净化位置的净化组件150相抵触的位置上。限位开关149可以采用各种接触开关、霍尔开关等实现。
由于空调器室内机100的内部空间狭小以及线缆布置问题，不利于布置多个限位开关，因此本实施例中仅布置了用于指示净化位置的限位开关，然后利用行程步数参数对净化组件150返回初始位置的过程进行控制。
电机控制器180的控制过程可以包括：获取预先设置的步进电机141的行程步数参数；检测步进电机141的行程步数参数是否处于有效状态；若步进电机141的行程步数参数有效，在接收到空调器10退出净化模式的触发信号时，驱动步进电机141按照行程步数参数运转，以使驱动装置140带动净化组件150移动至初始位置；若步进电机141的行程步数参数失效，重新记录净化组件在初始位置至净化位置移动过程中步进电机的步数，并使用重新记录的行进步数对步进电机141的行程步数参数进行修正。
电机控制器180还可以在获取空调器10进入净化模式的触发信号后，驱动步进电机141使驱动装置140将净化组件150移动至净化位置，并在接收到到位信号后，驱动步进电机141停机并记录净化组件150移动过程中步 进电机141的行程步数。
在另一些实施例中，在空调器10上电启动之后执行以下净化自检过程，确保净化组件150位于初始位置后，驱动步进电机141运转，使驱动装置140带动净化组件150完成一次从初始位置到净化位置然后返回初始位置的净化自检过程。从而提高驱动装置140的运行可靠性。
以下结合本实施例的带有净化功能的空调器10的控制方法，对上述实施例的空调器10的控制过程进行进一步说明，本实施例的带有净化功能的空调器10的控制方法可以由上述介绍的电机控制器180执行，用于对净化组件150的移动过程进行控制，图2是根据本发明一个实施例的带有净化功能的空调器的控制方法的示意图。该控制方法一般性地可以包括：
步骤S202，获取预先设置的步进电机141的行程步数参数；
步骤S204，检测步进电机141的行程步数参数是否处于有效状态；判断行程步数参数是否有效有多种方式，例如空调器10的停机时间过长，则认为行程步数参数失效；又例如按照行程步数参数运转使净化组件完成移动的次数是否超过设定次数，则认为行程步数参数失效；另外一种判断方式为将比较行程步数参数与步进电机141的实际行进步数进行比较，若偏差较大，则认为行程步数参数失效。
以上三种判断行程步数参数处于有效状态的方式，分别针对于空调器10的三种使用情况：
第一种，空调器10长时间未运行，例如空调器10在春季或者秋季长时间未上电，处于长时间停置状态，在该情况下，驱动装置140的润滑措施可能老化，导致步进电机141的行程步数变化，因此如果空调器10的停机时间过长，则认为行程步数参数失效。
第二种，空调器10长时间持续运行，净化组件150经过多次移动，由于驱动装置140部件之间的磨损有可能导致步进电机141的行程步数变化。因此，获取步进电机141按照行程步数参数使净化组件150完成移动的次数是否超过设定次数(例如50次，具体次数可以根据驱动装置140的情况进行设置)，若超过，确定行程步数参数失效。也即当前行程步数参数使用设定次数后，需要重新进行修正。
第三种，记录净化组件150从初始位置向净化位置移动过程中步进电机141的行程步数，将行程步数参数与记录净化组件150移动过程中步进电机141的行程步数进行比较，在两者的差值小于预设阈值时，确定行程步数参数处于有效状态；在两者的差值大于或等于预设阈值时，确定行程步数参数 失效。
步骤S206，若步进电机141的行程步数参数有效，在接收到空调器10退出净化模式的触发信号时，驱动步进电机141按照行程步数参数运转，驱动步进电机141按照行程步数参数运转，以使驱动装置140带动净化组件150移动；
相应地，在需要净化时，可以在获取到空调器10进入净化模式的触发信号，驱动步进电机141使驱动装置140将净化组件150移动至净化位置，并在接收到到位信号后，驱动步进电机141停机并记录净化组件移动过程中步进电机141的行程步数。
上述进入净化模式的触发信号可以包括：空气质量检测装置上报的空气污染超限信号、来自于用户的启动操作信号、定时启动信号。
对于空气污染超限信号，空气质量检测装置检测到空调器10的工作环境的空气污染到达设定超限阈值(例如各项参数超限或者污染等级超限等)后，可以触发空调器10进入净化模式。
对于启动操作信号，用户可以通过遥控器或者其他空调器人机交互接口，手动触发空调器10进入净化模式。
对于定时启动信号，空调器10可以根据运行时间，定期进行净化，例如累计工作8小时，开始净化1小时。
上述空调器10进入净化模式的触发信号可以根据用户对空气净化的要求进行设置。退出净化模式的触发信号也可以由多种，可以为空气质量检测装置180上报的空气清洁信号、来自于用户的关闭操作信号、定时到期信号，从而自动或者根据用户的操作关闭净化。
步骤S208，若步进电机141的行程步数参数失效，重新记录净化组件150在初始位置至净化位置移动过程中步进电机141的步数，并使用重新记录的行进步数对步进电机141的行程步数参数进行修正。
在空调器10每次上电启动，可以进行净化自检，确定驱动装置140的状态，具体自检方式包括：确保净化组件150位于初始位置后，驱动步进电机141运转，使驱动装置140带动净化组件150完成一次从初始位置到净化位置然后返回初始位置的净化自检过程。其中，确保净化组件150位于初始位置的步骤包括：驱动步进电机141向净化位置的方向移动直至接收到到位信号后，驱动步进电机141向初始位置的方向直至过步(例如使步进电机运转具有一定裕量的步数)。通过自检过程，可以确认驱动装置140的状态，并可以在接收到触发净化的信号后，可以直接执行移动净化组件150的动作。
在驱动装置140将净化组件150移动至净化位置，接收到到位信号后可以使空调器10工作于净化模式，由于净化模式中室内机风机产生气流的风阻明显不同，在进入净化模式后，气流经过过滤，必然导致经过室内机换热器的换热效果衰减，容易出现高负荷问题，因此还可以按照净化模式下预设的反馈控制方案对空调器10的制冷系统进行反馈控制。
在启动驱动装置140向净化位置移动净化组件150之前还可以检测进入净化模式时室内机100的换热器管温，按照进入净化模式时室内机100的换热器管温设定净化模式下的目标管温；在恢复压缩机运行频率至启动驱动装置时刻的运行频率之后还包括：实时检测室内机100的换热器管温，并计算与目标管温的差值，根据差值对室内机的风机进行反馈控制。该种控制模式，考虑到净化模式下，由于气流经过净化组件会产生风阻，影响室内机100的换热器的换热效率，为了满足室内机100的换热器的换热效率，可以相应调整室内机风机的风速，例如随着室内机100的换热器与目标管温的差值增大，室内机风机的风速相应加大。
在另一些可选实施例中，除了调整室内机风机的风速，还可以对制冷系统的压缩机和节流装置进行控制，进一步减少对空调器10的制冷制热的影响。
例如在空调器10制冷运行时，如果在净化后换热器管温低于目标管温不超过第一温差阈值(例如3度)时，可以根据差值对室内机的风机进行反馈控制，换热器管温温度越低，室内机的风机转速越快。如果室内机风机转速的提升不能保证换热器管温维持在与目标管温温差在第一温差阈值以内时，则增加压缩制冷循环的节流装置的开度，如果仍不能保证换热器管温维持在与目标管温温差在第二温差阈值以内时，则对压缩机进行降频，从而防止室内机换热器温度过低，出现高负荷。
在空调器10进行制冷运行时，如果在净化后换热器管温高于目标管温不超过第一温差阈值(例如3度)时，可以根据差值对室内机的风机进行反馈控制，换热器管温温度越高，室内机的风机转速越快。如果室内机风机转速的提升不能保证换热器管温维持在与目标管温温差在第一温差阈值以内时，则增加压缩制冷循环的节流装置的开度，如果仍不能保证换热器管温维持在与目标管温温差在第二温差阈值以内时，则对压缩机进行降频，从而防止室内机换热器温度过高，造成高负荷。
上述反馈控制可以采用PID(proportion-integral-derivative，比例-积分-微分)控制，也可以采用其他反馈控制方法，控制流程可以包括：实时检测 室内机的换热器管温，并计算与目标管温的差值；在差值小于预设的第一温差阈值时，根据差值对室内机的风机进行反馈控制；在差值大于或等于第一温差阈值时，根据差值对空调器的压缩制冷循环进行反馈控制。其中，根据差值对空调器的压缩制冷循环进行反馈控制的步骤包括：在差值大于或等于第一温差阈值并且小于第二温差阈值时，增加压缩制冷循环的节流装置的开度；在差值大于或等于第二温差阈值时，对压缩制冷循环的压缩机进行降频，其中第二温差阈值大于第一温差阈值。上述第一温差阈值和第二温差阈值可以根据室内机换热器的规格和使用要求进行配置，例如将第一温差阈值设置正负3摄氏度，将第二温差阈值设置为正负5摄氏度。
在本实施例的空调器10中，由于在净化组件150的移动过程遮蔽的进风口面积变化，容易出现乱流导致噪音增大，针对这一现象，还可以通过对室内机风机的控制，减小噪音，提高用户的使用体验。例如在获取到触发空调器10进入净化模式的信号后，在净化组件150的移动过程逐级降低室内机风机的风速等级，从而随着净化组件150遮蔽进风口的面积的增大，逐渐降低风速，避免气流进入进风口的过程中由于乱流出现的噪音，降低了对用户使用感受的影响。在调整室内机风机的风速时，相应对压缩机的频率进行相应控制，避免因风量下降导致的制冷系统负荷异常。在净化组件150到达净化位置后，逐级提高室内机风机的风速等级，并恢复压缩机运行频率，降低对空调器制冷或制热的影响，并且在净化过程中还可以根据室内机100的换热器管温对室内机风机进行反馈控制，从而保证制冷系统负荷保持稳定。
以下以带有壁挂式室内机的空调器为例，对该带有净化功能的空调器的结构和工作原理进行介绍。初始位置可以为室内机100的前面板后侧，驱动装置还包括齿轮齿条传动机构，以将步进电机141的动力传递至净化组件150，限位开关149可以设置于齿轮齿条传动机构的齿条上。
图3是根据本发明一个实施例的带有净化功能的空调器10的净化组件150处于初始位置时的室内机100的内部结构示意图，图4是根据本发明一个实施例的带有净化功能的空调器10的净化组件150处于净化位置时的室内机100的内部结构示意图，图5是根据本发明一个实施例的带有净化功能的空调器10的净化组件150处于初始位置时的剖视图。其中图3、图4中为了示出内部部件，隐去了室内机100的前面板130。
该带有净化功能的空调器10的室内机100一般性地可以包括机体骨架110、罩壳120、前面板130、驱动装置140和净化组件150等。机体骨架110构成换热器160和风机170的容纳空间，罩壳120罩在机体骨架110的前部， 以封闭换热器160和风机170，罩壳120的顶部形成有进风口121，罩壳120可拆卸固定在机体骨架110上，前面板130设置在罩壳120的前部，以形成室内机100的前表面，前面板130可拆卸地安装在罩壳120上。
净化组件150可以由驱动装置140驱动由前面板130内侧的初始位置运动至完全遮蔽进风口121的净化位置，并在净化位置对进入室内机100的气流进行净化。净化组件150还可以由驱动装置140驱动由进风口121内侧运动至前面板130内侧，以将进风口121显露，气流不经过净化组件150直接进入室内机100中，净化组件150不会产生风阻，降低空调的能耗。
当净化组件运动至进风口121内侧的净化位置时，限位开关149被触发，可以停止驱动装置140的运行，防止电机转动过步。通过限位开关149的触发信号，可以确定净化组件150运动到位，此时可以停止降低室内机风机170的风速等级。限位开关149可以设置在罩壳120的顶部，并且位于净化组件150运动到位后可以被触发的位置上。在另一些实施例中，限位开关149也可以设置于驱动装置140的传动机构的相应位置上。
在获取到空调器10进入净化模式的触发信号后，净化组件150由驱动装置140驱动由前面板130内侧运动至完全遮蔽进风口121的净化位置，净化组件150与空气充分接触，对进入室内机100的气流进行充分净化，提升室内环境的空气质量。在移动的过程中，对室内机风机170的风速进行相应调整，避免噪音影响。
在限位开关149被触发后，确定净化组件150运动到位，此时，逐渐恢复室内机风机170的风速，在净化的同时保证空调器10的制冷制热效果。
在退出净化时，净化组件150由驱动装置140驱动由进风口121内侧运动至前面板130内侧，将进风口121显露，气流不经过净化组件150直接进入室内机100，净化组件150不会对进入进风口121的气流产生阻力，使得空调器更加节能环保。
在一些可选实施例中，驱动装置140可以为两个，两个驱动装置140分别设置在罩壳120的横向两侧边框处，并且相对设置。
横向是指罩壳120的长度方向，罩壳120从顶部至前部形成有开口，罩壳120位于开口处的部分构成了罩壳120的边框，罩壳120的位于顶部的开口即为进风口121，罩壳120的位于前部的开口上覆盖有前面板130。
净化组件150位于两个驱动装置140之间，并与两个驱动装置140分别连接，两个驱动装置140同步运行。由此便于净化组件150由驱动装置140驱动在前面板130内侧与进风口121内侧之间运动。
图6是根据本发明一个实施例的带有净化功能的空调器10的净化组件150与驱动装置140的分解示意图，图7是根据本发明一个实施例的带有净化功能的空调器10的驱动装置140的爆炸示意图。
驱动装置140可以包括导轨组件、电机141、齿轮142、弧形齿条143和连杆146。导轨组件可以设置在罩壳120的横向侧端的边框处。
净化组件150还可以通过连杆146与弧形齿条143连接。具体地，连杆146的第一端与弧形齿条143转动连接，电机141驱动齿轮142转动，齿轮142带动弧形齿条143滑动，弧形齿条143带动与其转动连接的连杆146转动并滑动。并且，连杆146的第二端与净化组件150转动连接，净化组件150由连杆146带动可转动且可滑动地与导轨组件配合。由此使得净化组件150在前面板130内侧与进风口121内侧之间运动。
导轨组件可以包括基座144和侧盖145，基座144设置在罩壳120的横向侧端的边框处，例如基座144可通过螺钉固定在罩壳120的横向侧端的边框处，侧盖145扣合在基座144远离横向侧端的一面，侧盖145与基座144构成容纳齿轮142和弧形齿条143的空间，电机141的输出轴穿过基座144与齿轮142连接，电机141通过齿轮142驱动弧形齿条143滑动。
连杆146布置在基座144和侧盖145构成的容纳空间中，连杆146的第一端与弧形齿条143转动连接，连杆146的第二端与净化组件转动连接，连杆146带动净化组件150可转动并可滑动地与导轨组件配合，由此使得净化组件150在前面板130内侧与进风口121内侧之间运动。
基座144朝向弧形齿条143的一侧还可以形成有弧形槽144-4，弧形齿条143靠近基座144的一侧设置有至少一个第二滚轮143-3，第二滚轮143-3可以容纳在弧形槽144-4中并与弧形槽144-4滑动相接。由此可以使得弧形齿条143沿弧形槽144-4稳定滑动，提高驱动装置140运行的稳定性。
侧盖145远离基座144的一侧可以形成有第二导轨145-7，净化组件150由连杆146的带动可转动且可滑动地与第二导轨145-7配合，以在前面板130内侧与进风口121内侧之间运动。
电机141通过齿轮142驱动弧形齿条143沿弧形槽144-4滑动，弧形齿条143在滑动过程中，连杆146随弧形齿条143滑动，并与弧形齿条143之间产生转动的相对运动，净化组件150由连杆146带动并配合第二导轨145-7的路径沿第二导轨145-7运动，由此实现净化组件150在前面板130内侧与进风口121内侧之间运动。
连杆146的第二端可以设置一定位滑柱146-1，定位滑柱146-1穿过第 二导轨145-7与净化组件150转动连接。导轨145-7在其延伸方向上形成有镂空区，定位滑柱146-1穿过镂空区与净化组件150转动连接，连杆146随弧形齿条143运动的过程中，定位滑柱146-1在镂空区中滑动。
限位开关149设置于驱动装置140的传动机构的相应位置上时，限位开关149可以设置在第二导轨145-7上。净化组件150由连杆146带动运动至进风口121内侧并完全遮蔽进风口121时，定位滑柱146-1与对应的限位开关149接触，限位开关149被触发，电机141的输出轴停止转动，从而可避免电机141转动过步噪音，降低齿轮142和齿条143的磨损。同理，净化组件150由连杆146带动运动至前面板130内侧时，定位滑柱146-1与相应的限位开关149接触，限位开关149被触发，电机141停止运行。
第二导轨145-7可以包括第一弧形段145-7-1和与第一弧形段145-7-1相接的第二弧形段145-7-2，第一弧形段145-7-1与第二弧形段145-7-2的弧度不同，也即是指第一弧形段147-1-1与第二弧形段147-1-2的弯曲程度不同，由此形成了与净化组件150运动路径一致的不规则形状的第二导轨145-7，第一弧形段145-7-1可位于罩壳120横向侧端的边框与进风口121对应的位置，第二弧形段145-7-2向前下方延伸至前面板130的内侧。弧形槽144-4也可延伸至前面板130的内侧，第二弧形段145-7-2可位于弧形槽144-4的外侧，也即是说，与弧形槽144-4所在的位置相比，第二弧形段145-7-2更靠近前面板130。
电机141驱动齿轮142转动，齿轮142驱动弧形齿条143在弧形槽144-4中滑动，弧形齿条143在滑动过程中，连杆146随弧形齿条143滑动，并与弧形齿条143之间产生转动的相对运动，净化组件150由连杆146带动沿不规则形状的第二导轨145-7可以在前面板130的内侧的位置与进风口121的内侧的位置之间运动，并且净化组件150的运动路径位于弧形槽144-4的外侧。
相比于直接使用弧形齿条，连杆146带动净化组件150配合不规则形状的第二导轨145-7的运动所占的空间更小，可以节省空调室内机100的内部空间。
图8是根据本发明一个实施例的带有净化功能的空调器10的净化组件170的移动轨迹示意图，图中A为由第一弧形段145-7-1和与第一弧形段145-7-1弧度不同的第二弧形段145-7-2相接而成的不规则形状的第二导轨145-7的路径，B为呈弧形的第一导轨145-3的路径，不规则形状的第二导轨145-7位于呈弧形的第一导轨145-3的外侧。
如果净化组件150直接由弧形齿条143带动沿呈弧形的第一导轨145-3运动，净化组件150的运动轨迹位于外侧，如果净化组件150通过连杆146带动，净化组件150的运动轨迹应位于内侧。因此，净化组件150由连杆146带动沿不规则形状的第二导轨145-7的运动所需空间更小，可以让出室内机100的更多内部空间，无需增大室内机100的体积，在布置驱动装置140和净化组件150的同时，也可为换热器160、风机170及其他部件的布置提供足够的空间。
净化组件150可以与驱动装置140可拆卸连接，方便净化组件150的清洗和更换。净化组件150可以包括托架和置于托架上的净化模块151。净化模块151的形状和大下可以根据室内机100的内部空间和进风口121的大小进行确定，例如，净化模块151可以呈弧形。
托架可以包括两个相对设置的连接部152，在弧形齿条143直接带动净化组件150沿呈弧形导轨滑动的方案中，两个连接部152直接与对应的弧形齿条143连接。
在弧形齿条143通过连杆146带动净化组件150沿不规则形状的第二导轨145-7运动的方案中，两个连接部152与对应的连杆146转动连接。净化模块151设置在连接部152上并位于两个连接部152之间。具体地，两个连接部152可以相对设置在净化模块151的两个相对的端边，连接部152的第一端与连杆146的第二端转动连接，连接部152的第二端与第二导轨145-7滑动配合。
净化模块151可以为两个，连接部152之间可以设置一横杆153，横杆153的两端分别与两个连接部152连接，横杆153具有凹槽，方便净化模块151卡合在该凹槽中。横杆153的中部位置可以设置有结合部154，以连接两个净化模块151，并且两个净化模块151位于结合部154位置处的侧边相互抵靠。
在不开启净化功能时，净化组件150移动至前面板130的内侧，处于非净化位置(初始位置)；在开启净化功能后，净化组件150由驱动装置带动，移动至进风口121内侧完全遮蔽进风口121，处于净化位置，对进入室内机100的气流进行净化。
由于净化组件150移动过程中，由于在净化组件150的移动过程遮蔽的进风口面积变化，容易出现乱流导致噪音增大，因此相应对室内机风机170进行风速调节，另外同时考虑到空调器100的制冷制热负荷稳定，可以进一步对压缩机、节流装置进行控制。
本实施例的带有净化功能的空调器及其控制方法，利用净化组件在初始位置至净化位置移动过程中步进电机的步数对该参数进行修正，保证步进电机可以精准地将净化组件移动至指定的位置，避免出现移动不到位或者过步的问题，保证了净化功能的正常实现，并且不会带来额外的噪音。。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种带有净化功能的空调器的控制方法，所述空调器的室内机内设置有驱动装置以及净化组件，其中所述净化组件由所述驱动装置带动在离开所述室内机的进风口的初始位置与遮蔽所述进风口的净化位置之间移动，并在处于所述净化位置时对进入所述室内机的气流进行净化，所述驱动装置包括步进电机以及限位开关，所述步进电机用于提供使所述净化组件移动的动力，所述限位开关用于在所述净化组件到达净化位置后被触发，以生成到位信号，并且所述控制方法包括：
    获取预先设置的所述步进电机的行程步数参数；
    检测所述步进电机的行程步数参数是否处于有效状态；
    若所述步进电机的行程步数参数有效，在接收到所述空调器退出净化模式的触发信号时，驱动所述步进电机按照所述行程步数参数运转，以使所述驱动装置带动所述净化组件移动至所述初始位置；
    若所述步进电机的行程步数参数失效，重新记录所述净化组件在所述初始位置至所述净化位置移动过程中所述步进电机的步数，并使用重新记录的行进步数对所述步进电机的行程步数参数进行修正。
  2. 根据权利要求1所述的控制方法，还包括：
    获取所述空调器进入净化模式的触发信号，
    驱动所述步进电机使所述驱动装置将所述净化组件移动至所述净化位置，并在接收到所述到位信号后，驱动所述步进电机停机并记录所述净化组件移动过程中所述步进电机的行程步数。
  3. 根据权利要求2所述的控制方法，其中，
    检测所述步进电机的行程步数参数是否处于有效状态的步骤包括：将所述行程步数参数与所述记录所述净化组件移动过程中所述步进电机的行程步数进行比较，在两者的差值小于预设阈值时，确定所述行程步数参数处于有效状态；在两者的差值大于或等于所述预设阈值时，确定所述行程步数参数失效，
    对所述步进电机的行程步数参数进行修正的步骤包括：使用所述净化组件移动过程中所述步进电机的行程步数修正所述步进电机的行程步数参数。
  4. 根据权利要求2所述的控制方法，其中，在所述空调器上电启动之后还包括：
    确保所述净化组件位于所述初始位置后，驱动所述步进电机运转，使所 述驱动装置带动所述净化组件完成一次从所述初始位置到所述净化位置然后返回所述初始位置的净化自检过程。
  5. 根据权利要求4所述的控制方法，其中，确保所述净化组件位于所述初始位置的步骤包括：
    驱动所述步进电机向所述净化位置的方向移动直至接收到所述到位信号后，驱动所述步进电机向所述初始位置的方向直至过步。
  6. 根据权利要求1所述的控制方法，其中，检测所述步进电机的行程步数参数是否处于有效状态的步骤还包括：
    获取所述步进电机按照所述行程步数参数运转使所述净化组件完成移动的次数是否超过设定次数，若超过，确定所述行程步数参数失效。
  7. 根据权利要求1所述的控制方法，其中，驱动所述步进电机停机之后还包括：
    按照净化模式下预设的反馈控制方案对所述空调器的制冷系统进行反馈控制。
  8. 根据权利要求1至7中任一项所述的控制方法，其中，
    所述室内机为壁挂式室内机，所述初始位置为所述室内机的前面板后侧，所述驱动装置还包括齿轮齿条传动机构，以将所述电机的动力传递至所述净化组件，所述限位开关设置于所述齿条上。
  9. 一种带有净化功能的空调器，包括：
    室内机，其内设置有驱动装置以及净化组件，其中
    所述净化组件由所述驱动装置带动在离开所述室内机的进风口的初始位置与遮蔽所述进风口的净化位置之间移动，并在处于所述净化位置时对进入所述室内机的气流进行净化；
    所述驱动装置包括步进电机以及限位开关，所述步进电机用于提供所述净化组件移动的动力，所述限位开关用于在所述净化组件到达净化位置后被触发，以生成到位信号；并且所述空调器还包括：
    电机控制器，配置成：
    获取预先设置的所述步进电机的行程步数参数；
    检测所述步进电机的行程步数参数是否处于有效状态；
    若所述步进电机的行程步数参数有效，在接收到所述空调器退出净化模式的触发信号时，驱动所述步进电机按照所述行程步数参数运转，以使所述驱动装置带动所述净化组件移动至所述初始位置；
    若所述步进电机的行程步数参数失效，重新记录所述净化组件在所述初 始位置至所述净化位置移动过程中所述步进电机的步数，并使用重新记录的行进步数对所述步进电机的行程步数参数进行修正。
  10. 根据权利要求9所述的空调器，其中
    所述室内机为壁挂式室内机，所述初始位置为所述室内机的前面板后侧，所述驱动装置还包括齿轮齿条传动机构，以将所述电机的动力传递至所述净化组件，所述限位开关设置于所述齿条上。
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