Air conditioner

Abstract

The application discloses an air conditioner, comprising: a shell; an ion generator for generating ions; an ion concentration detector for detecting ion concentration; a heat exchanger for heat exchange with indoor air; a fan for guiding indoor air flow; a transverse air deflector for adjusting the air outlet direction of the air outlet in the up-down direction; a transverse driving motor for driving the transverse air deflector to rotate; a controller connected with the ion generator, the ion concentration detector, the transverse air deflector and the fan respectively; the controller is configured to receive an indoor sterilization signal, control the ion generator to operate, control the fan to operate when the ion concentration is less than the lower limit value of the preset concentration interval, judge whether the air conditioner is in a heating mode, if yes, control the transverse air deflector to tilt downward to make the air outlet blow downward, and if not, control the transverse air deflector to tilt upward to make the air outlet blow upward. The air conditioner can adjust the concentration and propagation efficiency of ions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner. BACKGROUND

[0002] The air conditioner in the related art usually purifies indoor air through ions, and the distribution and propagation range of the ions in the space are greatly affected by air conditioning blowing. For example, in the case of a large wind speed, the follow-wind propagation distance of the ions is far, but the propagation range is limited, and the ion distribution is in the shape of a long ellipse. In the case of a small wind speed, the follow-wind propagation distance of the ions is close, but the propagation range is wide, and the ion distribution is in the shape of a flat circle. However, most of the air conditioners in the related art only have control over the start and stop of the ion generator, and cannot reasonably control the propagation efficiency of the ions in the room, resulting in poor ion degerming purification effect and poor user experience. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide an air conditioner capable of adjusting the concentration and propagation efficiency of ions, and the ion purification effect is better.

[0004] In order to achieve the above-mentioned purpose, according to an embodiment of the present application, an air conditioner is provided, comprising: a shell provided with an air inlet, an air outlet and an air return; an ion generator installed in the shell and located at the air outlet, for generating ions; an ion concentration detector installed in the shell and located at the air return, for detecting the ion concentration; a heat exchanger installed in the shell, for heat exchange with indoor air; a fan installed in the shell, for guiding indoor air to flow into the shell through the air inlet and flow out of the shell through the air outlet; a transverse air deflector rotatably installed in the shell, for adjusting the air outlet direction of the air outlet in the up-down direction; a transverse drive motor installed in the shell and connected with the transverse air deflector, for driving the transverse air deflector to rotate; a controller connected with the ion generator, the ion concentration detector, the heat exchanger, the transverse drive motor and the fan respectively; when receiving an indoor degerming signal, the controller controls the ion generator to operate and acquires the ion concentration, when the ion concentration is less than the lower limit value of a preset concentration interval, the controller controls the fan to operate at a first rotating speed, and judges whether the air conditioner is in a heating mode, if yes, the controller controls the transverse drive motor to drive the transverse air deflector to tilt downward and the included angle with the horizontal plane is greater than a first preset angle, so that the air outlet blows downward, if not, the controller controls the transverse drive motor to drive the transverse air deflector to tilt upward and the included angle with the horizontal plane is greater than a second preset angle, so that the air outlet blows upward.

[0005] The air conditioner according to the embodiments of the present application can adjust the concentration and propagation efficiency of ions, and the ion purification effect is better.

[0006] According to some embodiments of the present application, the controller is configured to control the fan to operate at a second wind speed when the ion concentration is within the preset concentration range; control the fan to operate at a third wind speed when the ion concentration is greater than the upper limit value of the preset concentration range; and the first wind speed, the second wind speed and the third wind speed decrease in turn.

[0007] According to some embodiments of the present application, the air conditioner further comprises a vertical air deflector rotatably installed on the shell and used for adjusting the air outlet direction of the air outlet in the left-right direction; a vertical drive motor installed on the shell and connected with the vertical air deflector and the controller respectively, and used for driving the vertical air deflector to rotate; and the controller is configured to control the vertical drive motor to drive the vertical air deflector to swing left and right when the indoor ion concentration is less than the lower limit value of the preset concentration range; control the vertical drive motor to drive the vertical air deflector to swing left and right and control the horizontal drive motor to drive the horizontal air deflector to swing up and down when the ion concentration is within the preset concentration range; and control the vertical drive motor to drive the vertical air deflector to keep at the current position and control the horizontal drive motor to drive the horizontal air deflector to keep at the current position when the ion concentration is greater than the upper limit value of the preset concentration range.

[0008] According to some embodiments of the present application, the controller is configured to, after receiving the indoor sterilization signal, acquire the ion concentration again every first preset time interval, and adjust the rotating speed of the fan, whether the horizontal air deflector swings left and right and whether the vertical air deflector swings up and down according to the ion concentration.

[0009] According to some embodiments of the present application, the controller is configured to, when receiving the air conditioner sterilization signal, control the ion generator to operate, control the fan to operate reversely at a second rotating speed, and continue for a second preset time.

[0010] According to some embodiments of the present application, the controller is configured to, after controlling the fan to operate for the second preset time, turn off the ion generator and acquire the ion concentration; control the fan to stop operating when the ion concentration is less than the lower limit value of the preset concentration range; and control the fan to continue to operate reversely when the ion concentration is not less than the lower limit value of the preset concentration range.

[0011] According to some embodiments of the present application, when the ion concentration is greater than the upper limit of the preset concentration range, the controller controls the fan to run in reverse at the first rotating speed until the ion concentration is less than the lower limit of the preset concentration range, and then controls the fan to stop running.

[0012] According to some embodiments of the present application, when the ion concentration is greater than the upper limit of the preset concentration range, the controller controls the fan to run in reverse at the first rotating speed until the ion concentration is less than the lower limit of the preset concentration range, and then controls the fan to stop running.

[0013] According to some embodiments of the present application, the controller is configured to, when the air conditioner sterilization signal is received, control the lateral driving motor to drive the lateral air deflector to close the air outlet.

[0014] According to some embodiments of the present application, the air conditioner further comprises: a baffle, which is installed on the shell and located at the air return outlet, for controlling the opening and closing of the air return outlet; and a baffle driving motor, which is installed on the shell and connected with the controller, for driving the baffle to move to open and close the air return outlet. The controller is configured to, when the air conditioner sterilization signal is received, control the baffle driving motor to drive the baffle to close the air return outlet.

[0015] Additional aspects and advantages of the present application will be given, partially in the following description, partially become obvious from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a flowchart of indoor sterilization of an air conditioner according to an embodiment of the present application.

[0018] Figure 2 is a control flowchart of a fan of a flowchart of indoor sterilization of an air conditioner according to an embodiment of the present application.

[0019] Figure 3 is a control flowchart of a lateral air deflector and a vertical air deflector of a flowchart of indoor sterilization of an air conditioner according to an embodiment of the present application.

[0020] Figure 4is a flowchart of air conditioner sterilization of an air conditioner according to an embodiment of the present application.

[0021] Figure 5 is a flowchart of a fan of air conditioner sterilization of an air conditioner according to an embodiment of the present application.

[0022] Figure 6 is a control flowchart of a cross air deflector and a baffle of air conditioner sterilization of an air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example, embodiments in which the same or similar elements have the same or similar reference numbers and in which:

[0024] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0025] In the description of the present application, "first feature" and "second feature" can include one or more of the features.

[0026] In the description of the present application, "a plurality of" means two or more, and "several" means one or more.

[0027] An air conditioner according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0028] As shown in Figures 1-6 , an air conditioner according to an embodiment of the present application includes a housing, an ion generator, an ion concentration detector, a heat exchanger, a fan, a cross air deflector, a cross drive motor, and a controller.

[0029] The shell is provided with an air inlet, an air outlet and an air return port, the ion generator is installed on the shell and located at the air outlet, the ion generator is used to generate ions, the ion concentration detector is installed on the shell and located at the air return port, the ion concentration detector is used to detect the ion concentration, the heat exchanger is installed in the shell, the heat exchanger is used to exchange heat with indoor air, the fan is installed in the shell, the fan is used to guide the flow direction of indoor air, the transverse air deflector is rotatably installed on the shell and located at the air outlet, the transverse air deflector is used to adjust the air outlet direction of the air outlet in the up-down direction, and the controller is installed on the shell and connected with the ion generator, the ion concentration detector, the heat exchanger, the transverse driving motor and the fan respectively.

[0030] The controller is configured to, when the indoor sterilization signal is received, control the ion generator to operate, and obtain the ion concentration, when the ion concentration is less than the lower limit value of the preset concentration interval, control the fan to operate at a first rotating speed, and determine whether the air conditioner is in a heating mode, if yes, control the transverse driving motor to drive the transverse air deflector to tilt downward and the included angle with the horizontal plane is greater than a first preset angle, so that the air outlet blows downward, if not, control the transverse driving motor to drive the transverse air deflector to tilt upward and the included angle with the horizontal plane is greater than a second preset angle, so that the air outlet blows upward.

[0031] The indoor sterilization signal can be a user input instruction, for example, the user controls the air conditioner to perform indoor sterilization by ion through one-key pressing of a remote controller, or the air conditioner performs indoor sterilization by ion for a certain time according to a program.

[0032] According to the air conditioner of the embodiment of the present application, the shell is provided with an air inlet, an air outlet and an air return port, the ion generator is installed on the shell and located at the air outlet, the ion generator is used to generate ions, and the ion concentration detector is installed on the shell and located at the air return port, the ion concentration detector is used to detect the ion concentration.

[0033] In this way, indoor air can enter the shell through the air return port, the ion concentration detector detects the ion concentration in the air at the air return port, so that the ion concentration of indoor air can be detected, the ions generated by the ion generator are closer to the air outlet, and the air conditioner air can be blown to the indoor through the air outlet, so that the ions can be blown to the indoor through the air conditioner air, so as to improve the diffusion rate of the ions, make the ions quickly enter the indoor, improve the ion concentration of the indoor air, and improve the purification and sterilization effect of the ions on the indoor air.

[0034] In addition, the heat exchanger is installed in the shell, the heat exchanger is used to exchange heat with indoor air, the fan is installed in the shell, the fan is used to guide the flow direction of indoor air, the transverse air deflector is rotatably installed on the shell and located at the air outlet, and the transverse air deflector is used to control the air outlet direction of the air outlet in the up-down direction.

[0035] In this way, indoor air can enter the shell through the air inlet, and after heat exchange with the heat exchanger, a heat exchange airflow is formed, which is discharged to the indoor through the air outlet, so that the indoor can be cooled or heated, and by rotating the horizontal air deflector, the air outlet direction of the heat exchange airflow in the up-down direction can be changed to make the air outlet of the air conditioner more comfortable.

[0036] Moreover, by rotating the horizontal air deflector, the propagation direction of the ions can also be changed, when the fan speed is fast, the propagation distance of the ions can be far, and in combination with the horizontal air deflector changing the propagation direction of the ions, the disadvantage that the ion propagation range is small when the fan speed is large can be made up, so that the propagation distance of the ions is far and the propagation range of the ions is also large, further improving the diffusion rate of the ions in the indoor, which is beneficial to quickly adjusting the concentration of the ions in the indoor and making the ion propagation more uniform.

[0037] In addition, the controller is connected with the ion generator, the ion concentration detector, the heat exchanger, the horizontal driving motor and the fan respectively, and the controller is configured to control the ion generator to operate when receiving the indoor sterilization signal, and to obtain the ion concentration, when the ion concentration is less than the lower limit value of the preset concentration interval, control the fan to operate at a first rotating speed, and determine whether the air conditioner is in a heating mode, if yes, control the horizontal driving motor to drive the horizontal air deflector to tilt downward and the included angle with the horizontal plane is greater than a first preset angle, so that the air outlet discharges air downward, if not, control the horizontal driving motor to drive the horizontal air deflector to tilt upward and the included angle with the horizontal plane is greater than a second preset angle, so that the air outlet discharges air upward.

[0038] It should be noted that the air conditioner can be pre-set with a preset concentration interval, when the ion concentration is within the preset concentration interval, it means that the concentration of the ion concentration is relatively appropriate, which can not only ensure the sterilization effect of the ions on the indoor air, but also avoid the risk of breakdown of the electrical components caused by the accumulation of ions on the shell of the air conditioner.

[0039] When the ion concentration in the indoor is lower than the lower limit value of the preset concentration interval, the ion concentration is low, at this time, the fan is operated at a first rotating speed, wherein the first rotating speed can be the maximum rotating speed of the fan, which can improve the air outlet rate of the air conditioner, so as to improve the propagation rate of the ions, so as to quickly increase the ion concentration in the indoor, and further increase the sterilization effect of the ions.

[0040] Since the fan needs to operate at the maximum rotating speed, the air outlet wind speed of the air conditioner is large. If the air conditioner is in the heating mode, the hot air blown out by the air conditioner has a small density, and the hot air flows upward. At this time, by tilting the horizontal air deflector downward and the included angle with the horizontal plane is greater than the first preset angle, the air outlet of the air outlet can be guided downward, that is, the air outlet blows air downward, so that the hot air blown out by the air conditioner flows from bottom to top, and the hot air forms a carpet wind, so that the high-speed flowing hot air can be avoided from blowing directly to the user, and the hot air can spread from bottom to top to multiple positions in the room, that is, the heating effect of the air conditioner is good, and the high-speed hot air is avoided from blowing directly to the user, which is beneficial to improve the air outlet comfort of the air conditioner in the heating mode, and the user experience is better.

[0041] If the air conditioner is not in the heating mode, for example, the air conditioner is in the cooling mode, dehumidification mode or air supply mode, the temperature of the air conditioner air blown out by the air conditioner is close to or lower than the indoor temperature. At this time, the density of the air conditioner air is the same as or less than the density of the indoor air. At this time, by tilting the horizontal air deflector upward and the included angle with the horizontal plane is greater than the second preset angle, the air outlet of the air outlet can be guided upward, that is, the air outlet blows air upward, so that the air conditioner air blown out by the air conditioner flows from top to bottom, and the air conditioner air forms a waterfall wind, so that the high-speed flowing air conditioner air can be avoided from blowing directly to the user, and the air conditioner air can spread from top to bottom to multiple positions in the room, that is, the cooling effect of the air conditioner is good, and the high-speed air conditioner air can be avoided from blowing directly to the user, which is beneficial to improve the air outlet comfort of the air conditioner in the non-heating mode, and the user experience is better.

[0042] In this way, when the indoor ion concentration is low, the controller can adjust the rotating speed of the fan and the position of the horizontal air deflector to improve the propagation rate of the ions, so that the ions generated by the ion generator can quickly propagate to multiple positions in the room to quickly increase the indoor ion concentration, which is beneficial to improve the sterilization and purification effect of the ions. Therefore, the air conditioner in the embodiment of the present application can keep the indoor ion concentration in a more appropriate range, that is, it can ensure the sterilization effect of the ions on the indoor air and keep the air quality high, and also improve the use safety of the air conditioner.

[0043] In this way, the air conditioner according to the embodiment of the present application can adjust the concentration and propagation efficiency of the ions, and the ion purification effect is better.

[0044] In some specific embodiments of the present application, as shown in Figure 3 The controller is configured to: when the ion concentration is in the preset concentration interval, the fan operates at a second wind speed; and when the ion concentration is greater than the upper limit value of the preset concentration interval, the fan operates at a third wind speed. The first wind speed, the second wind speed and the third wind speed decrease in turn.

[0045] When the ion concentration in the room is in the preset concentration interval, the ion concentration can both disinfect and sterilize the room and ensure the electrical safety of the room. At this time, the air conditioner can be operated at the second wind speed (i.e., the medium wind speed) to moderate the air outlet rate of the air conditioner, so as to maintain the propagation rate of the ions, maintain the ion concentration in the room in the preset concentration interval, and thus make the sterilization effect of the ions better, and can avoid the ion concentration being too high to reduce the risk probability of the breakdown of the electrical components, and is safer.

[0046] When the ion concentration in the room is higher than the upper limit value of the preset concentration interval, the ion concentration is higher. At this time, the air conditioner can be operated at the third wind speed (i.e., the low wind speed) to reduce the air outlet rate of the air conditioner, so as to reduce the propagation rate of the ions, quickly reduce the ion concentration in the room, and make the ion concentration in the room be reduced to the preset concentration interval, and thus can avoid the ion concentration being too high to reduce the risk probability of the breakdown of the electrical components, and is safer.

[0047] In some embodiments of the present application, as shown in Figure 2 The air conditioner further comprises a vertical air deflector and a vertical driving motor.

[0048] The vertical air deflector is rotatably installed on the shell, and is used to adjust the air outlet direction of the air outlet in the left-right direction. The vertical driving motor is installed on the shell and connected with the vertical air deflector and the controller respectively, and is used to drive the vertical air deflector to rotate.

[0049] The controller is configured to control the vertical driving motor to drive the vertical air deflector to swing left and right when the ion concentration in the room is less than the lower limit value of the preset concentration interval, control the vertical driving motor to drive the vertical air deflector to swing left and right and control the horizontal driving motor to drive the horizontal air deflector to swing up and down when the ion concentration is in the preset concentration interval, and control the vertical driving motor to drive the vertical air deflector to remain at the current position and control the horizontal driving motor to drive the horizontal air deflector to remain at the current position when the ion concentration is greater than the upper limit value of the preset concentration interval.

[0050] That is, when the ion concentration in the room is lower than the upper limit value of the preset concentration interval, the ion concentration is lower. At this time, the vertical air deflector can be swung to improve the coverage range of the air outlet of the air conditioner in the left-right direction, so as to improve the propagation range of the ions output by the ion generator in the left-right direction, increase the propagation area of the ions, quickly increase the ion concentration in the room, and thus increase the sterilization effect of the ions on the indoor air.

[0051] When the ion concentration in the room is within the preset concentration interval, the ion concentration is appropriate, at this time, the ion concentration in the room can be effectively supplemented after the ion in the room is consumed, so that the ion concentration in the room is maintained in the range comfortable for human body, at this time, the air outlet of the air conditioner can be ensured to cover the range in the up-down direction and the range in the left-right direction by swinging the vertical air deflector and the horizontal air deflector simultaneously, so as to maintain the propagation range of the ion in the room to be large, and then the ion concentration in the room can be maintained in the preset concentration range, so as to ensure the sterilization effect of the ion on the indoor air, and at this time, the fan can run at the second wind speed (the medium wind speed), and the air outlet rate of the air conditioner will not be too fast, even if the vertical air deflector and the horizontal air deflector swing to cause the air conditioner air to blow to the user, the user will not feel uncomfortable.

[0052] When the ion concentration in the room is higher than the upper limit of the preset concentration interval, the ion concentration is high, at this time, by stopping the vertical air deflector and the horizontal air deflector from swinging, and running the fan at the third rotation speed (the low rotation speed), the propagation range and the propagation distance of the ion in the room can be reduced, so as to reduce the propagation rate of the ion, so as to quickly reduce the ion concentration in the room, so that the ion concentration in the room can be reduced to the preset concentration interval, and then the ion concentration can be avoided to be too high, so as to reduce the risk probability of the breakdown of the electrical element, and the safety is higher.

[0053] In some specific embodiments of the present application, the controller is configured to, after receiving the indoor sterilization signal, acquire the ion concentration every first preset time interval, and adjust the rotation speed of the fan, whether the horizontal air deflector swings left and right, and whether the vertical air deflector swings up and down according to the ion concentration.

[0054] Specifically, when the ion concentration is higher than the upper limit of the preset concentration interval, the controller controls the horizontal air deflector and the vertical air deflector to stop swinging, and after the fan runs at the third rotation speed for the first preset time, if the ion concentration is still higher than the upper limit of the preset concentration interval, the controller continues to control the horizontal air deflector and the vertical air deflector to stop swinging, and the fan continues to run at the third rotation speed, so as to quickly reduce the ion concentration; if the ion concentration is within the preset concentration interval, the controller controls the horizontal air deflector and the vertical air deflector to swing, and the fan runs at the second rotation speed, so as to maintain the ion concentration within the preset concentration interval; if the ion concentration is lower than the lower limit of the preset concentration interval, the controller controls the vertical air deflector to swing, and the fan runs at the first rotation speed, so as to increase the ion concentration.

[0055] Or, when the ion concentration is lower than the lower limit value of the preset concentration interval, the controller controls the horizontal air deflector to open the minimum angle or the maximum angle, and the vertical air deflector to swing, and the fan to run at the first wind speed for the first preset time, and if the ion concentration is still lower than the lower limit value of the preset concentration interval, the controller controls the vertical air deflector to continue to swing, and the fan to continue to run at the first speed, so as to increase the ion concentration; if the ion concentration is in the preset concentration interval, the controller controls the horizontal air deflector and the vertical air deflector to swing, and the fan to run at the second speed, so as to maintain the ion concentration in the preset concentration interval; and if the ion concentration is higher than the upper limit of the preset concentration interval, the controller controls the horizontal air deflector and the vertical air deflector to stop swinging, and the fan to run at the third speed, so as to quickly reduce the ion concentration.

[0056] In some embodiments of the present application, as shown in Figure 4 When the air conditioner degerming signal is received, the controller is configured to control the ion generator to run, control the fan to run in reverse at the second speed, and continue for a second preset time. In this way, the ions generated by the ion generator can be sucked into the air conditioner by reversing the fan, and the fan runs at the second speed (i.e., the medium speed), so that the moving speed of the ions is neither too fast nor too slow, and the ions are in contact with the internal components of the air conditioner for a longer time, thereby achieving better purification effect, and the ions are not easily accumulated on the plastic parts and electrical components inside the air conditioner, thereby avoiding static accumulation and reducing the risk of electrical component breakdown.

[0057] In some embodiments of the present application, as shown in Figure 4 The controller is configured to control the fan to run in reverse at the second speed for a second preset time, turn off the ion generator, obtain the ion concentration, and if the ion concentration is less than the lower limit value of the preset concentration interval, control the fan to stop running; and if the ion concentration is not less than the lower limit value of the preset concentration interval, control the fan to continue to run in reverse.

[0058] In this way, when the air conditioner is internally cleaned, the fan runs in reverse to suck the ions generated by the ion generator into the housing, and after the fan runs at the second speed for the second preset time, the internal cleaning is basically completed. By running the fan at the second speed (i.e., the medium speed), on the one hand, the wind speed can be avoided to be too large, thereby avoiding the contact time between the ions and the internal components of the air conditioner to be too short, so as to ensure better purification effect, and on the other hand, the wind speed can be avoided to be too small, thereby avoiding the accumulation of ions on the plastic parts and electrical components inside the air conditioner, thereby avoiding the static accumulation of ions, and reducing the risk of electrical component breakdown.

[0059] Then, the ion concentration in the interior of the air conditioner is detected. If the ion concentration is not less than the lower limit value of the preset concentration interval, that is, the ion concentration is greater than the upper limit value of the preset concentration interval or is within the preset concentration interval, it indicates that there are still many ions in the interior of the air conditioner. At this time, the ion cleaning rate in the interior can be accelerated by continuing to reverse the fan, so as to improve the interior cleaning effect of the air conditioner, rapidly reduce the ion concentration, avoid the accumulation of ions in the plastic parts and electrical elements in the air conditioner, thereby avoiding the static accumulation of ions, and reducing the risk of electrical element breakdown.

[0060] In some embodiments of the present application, as shown in Figure 5 The step of controlling the fan to continue to operate in reverse includes:

[0061] If the ion concentration is greater than the upper limit of the preset concentration interval, the fan is controlled to operate in reverse at a first speed.

[0062] If the ion concentration is within the preset concentration interval, the fan is controlled to operate in reverse at a second speed for a third preset time, and then the fan is controlled to stop operating. The first speed is greater than the second speed.

[0063] That is, when the ion concentration is within the preset concentration interval, it indicates that there are still many ions in the interior of the air conditioner. After the fan operates in reverse at the second speed (i.e., the medium speed) for the third preset time, the remaining ions can continue to degerm the interior of the air conditioner, and the ion concentration is reduced to below the lower limit value of the preset concentration interval. It can be understood that if the fan operates in reverse at the second speed for the third preset time, even if the ion concentration does not decrease below the preset interval, the ion concentration in the interior of the air conditioner will not increase at this time, and the ion concentration should be at a position adjacent to the lower limit value of the preset concentration interval. At this time, the interior cleaning is ended, and the ion concentration will not cause static accumulation, which can ensure electrical safety.

[0064] When the ion concentration is greater than the preset concentration interval, it indicates that the ion concentration in the interior of the air conditioner is too large. At this time, the ion cleaning rate in the interior can be accelerated by reversing the fan at the first speed (i.e., the high speed), and the ion concentration in the interior is rapidly reduced, avoiding the accumulation of ions in the plastic parts and electrical elements in the air conditioner, thereby avoiding the static accumulation of ions, reducing the risk of electrical element breakdown, and effectively ensuring electrical safety.

[0065] In some embodiments of the present application, as shown in Figure 5As shown, the controller is configured to, when the ion concentration is greater than the upper limit value of the preset concentration interval, the fan is reversely operated at the first rotating speed until the ion concentration is less than the lower limit value of the preset concentration interval, the fan is stopped.

[0066] In this way, when the ion concentration is greater than the upper limit value of the preset concentration interval, the ion concentration in the surface air conditioner is already very high at this time, and the ion concentration in the air conditioner is too high, which can greatly increase the probability of mutual discharge between electrical components in the air conditioner. The fan can quickly reduce the ion concentration in the air conditioner by reversing the fan at a high speed at the first rotating speed, and the fan is stopped after the ion concentration is lower than the preset concentration interval, which more effectively avoids the ion concentration in the air conditioner being too high, and more effectively avoids the accumulation of ions in the plastic parts and electrical components in the air conditioner, thereby avoiding the accumulation of static electricity generated by ions, reducing the risk of electrical component breakdown, and improving the electrical safety of the air conditioner.

[0067] It should be noted that when the fan is reversely operated at the first rotating speed, the ion concentration can be monitored in real time. When the ion concentration detector detects that the ion concentration in the air conditioner is lower than the minimum value of the preset concentration interval, the fan can be stopped by the controller, and the internal cleaning is completed. Alternatively, the air conditioner can also set a preset time, and when the fan is reversely operated at the first rotating speed for the preset time, the ion concentration is detected by the ion concentration detector. In this way, the ion concentration detector can be intermittently powered on for detection, which is beneficial to save energy consumption, and the fan can also be turned off when the ion concentration is lower than the lower limit value of the preset concentration interval.

[0068] In some embodiments of the present application, as shown in Figure 6 The air conditioner further comprises a baffle and a baffle driving motor.

[0069] The baffle is installed on the shell and located at the return air inlet, and the baffle is used to control the opening and closing of the return air inlet. The baffle driving motor is installed on the shell and connected with the controller, and the baffle driving motor is used to drive the baffle to move. The controller is configured to, when receiving the air conditioner sterilization signal, control the baffle driving motor to drive the baffle to close the return air inlet.

[0070] That is, when the controller receives the air conditioner sterilization signal, the horizontal air deflector is used to close the air outlet, and the baffle is used to close the return air inlet. In this way, the air outlet and the return air inlet are both closed, so that an approximately airtight space can be formed in the air conditioner. At this time, the fan is reversed to guide the ions into the interior of the air conditioner, so as to avoid the ions overflowing to the outside of the air conditioner (i.e. the indoor environment). The ion concentration in the air conditioner can be quickly increased in a short time, so as to shorten the time for the air conditioner to perform internal ion sterilization, so that the air conditioner can quickly recover to normal use after internal purification, and the user experience is better.

[0071] Other configurations and operations of the air conditioner according to the embodiments of the present application are known to those of ordinary skill in the art, and thus will not be described in detail.

[0072] The air conditioner in the present application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to air that has been conditioned and heat-exchanged.

[0073] The compressor compresses refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0074] The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into liquid-phase refrigerant at low pressure. The evaporator evaporates the refrigerant expanded in the expansion valve and returns refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by heat-exchanging with a material to be cooled using latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature and humidity of an indoor space.

[0075] In the description of the present specification, the description referring to the terms "specific embodiments", "specific examples", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0076] Although the embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An air conditioner characterized by comprising: The application relates to an air conditioner, which comprises a shell provided with an air inlet, an air outlet and an air return; an ion generator installed in the shell and located at the air outlet, used for generating ions; an ion concentration detector installed in the shell and located at the air return, used for detecting ion concentration; a heat exchanger installed in the shell, used for heat exchange with indoor air; a fan installed in the shell, used for guiding indoor air to flow into the shell through the air inlet and flow out of the shell through the air outlet; a horizontal air deflector rotatably installed in the shell, used for adjusting the air outlet direction of the air outlet in the up-down direction; a horizontal driving motor installed in the shell and connected with the horizontal air deflector, used for driving the horizontal air deflector to rotate; a vertical air deflector rotatably installed in the shell, used for adjusting the air outlet direction of the air outlet in the left-right direction; a vertical driving motor installed in the shell and connected with the vertical air deflector, used for driving the vertical air deflector to rotate; and a controller connected with the ion generator, the ion concentration detector, the heat exchanger, the horizontal driving motor, the vertical driving motor and the fan respectively. The controller is configured to control the ion generator to operate when receiving an indoor sterilization signal, and to acquire the ion concentration; when the ion concentration is less than the lower limit value of a preset concentration range, control the fan to operate at a first rotating speed, and determine whether the air conditioner is in a heating mode; if yes, control the horizontal driving motor to drive the horizontal air deflector to tilt downward and form an angle greater than a first preset angle with a horizontal plane, so that the air outlet blows air downward; if not, control the horizontal driving motor to drive the horizontal air deflector to tilt upward and form an angle greater than a second preset angle with the horizontal plane, so that the air outlet blows air upward. The controller is further configured to control the vertical driving motor to drive the vertical air deflector to swing left and right when the indoor ion concentration is less than the lower limit value of the preset concentration range; control the vertical driving motor to drive the vertical air deflector to swing left and right and control the horizontal driving motor to drive the horizontal air deflector to swing upward and downward when the ion concentration is in the preset concentration range; and control the vertical driving motor to drive the vertical air deflector to remain at a current position and control the horizontal driving motor to drive the horizontal air deflector to remain at a current position when the ion concentration is greater than the upper limit value of the preset concentration range. The controller is configured to control the fan to operate at a second rotating speed when the ion concentration is in the preset concentration range; control the fan to operate at a third rotating speed when the ion concentration is greater than the upper limit value of the preset concentration range; and the first rotating speed, the second rotating speed and the third rotating speed decrease in turn. The controller is configured to acquire the ion concentration again every first preset time interval after receiving the indoor sterilization signal, and to adjust the rotating speed of the fan, whether the horizontal air deflector swings left and right and whether the vertical air deflector swings upward and downward according to the ion concentration. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The air conditioner according to claim 1, wherein ​ ​ ​ 3. The air conditioner of claim 1, wherein ​ 4. The air conditioner of claim 1, wherein The controller is configured to, when receiving the air conditioner sterilization signal, control the ion generator to operate, control the fan to operate reversely at a second rotating speed, and continue for a second preset time.

5. The air conditioner of claim 4, wherein The controller is configured to, after controlling the fan to operate for the second preset time, control the ion generator to be turned off, and acquire the ion concentration. When the ion concentration is less than a lower limit value of the preset concentration range, the controller controls the fan to stop operating. When the ion concentration is not less than the lower limit value of the preset concentration range, the controller controls the fan to continue operating reversely.

6. The air conditioner of claim 5, wherein When the ion concentration is not less than the lower limit value of the preset concentration range, the controller controls the fan to continue operating reversely, including: When the ion concentration is greater than an upper limit value of the preset concentration range, the controller controls the fan to operate reversely at a first rotating speed. When the ion concentration is within the preset concentration range, the controller controls the fan to operate reversely at the second rotating speed and continue for a third preset time, and controls the fan to stop operating. The first rotating speed is greater than the second rotating speed.

7. The air conditioner of claim 6, wherein When the ion concentration is greater than the upper limit value of the preset concentration range, the controller controls the fan to operate reversely at the first rotating speed until the ion concentration is less than the lower limit value of the preset concentration range, and controls the fan to stop operating.

8. The air conditioner of claim 4, wherein When receiving the air conditioner sterilization signal, the controller controls the lateral driving motor to drive the lateral air deflector to close the air outlet.

9. The air conditioner of claim 4, wherein Further comprising: A baffle, which is installed on the shell and located at the return air outlet, is used to control the opening and closing of the return air outlet; A baffle driving motor, which is installed on the shell and connected with the controller, is used to drive the baffle to move so as to control the opening and closing of the return air outlet; When receiving the air conditioner sterilization signal, the controller controls the baffle driving motor to drive the baffle to close the return air outlet.

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