Control method for air conditioner indoor unit and air conditioner indoor unit
A technology for an indoor unit of an air conditioner and a control method, which is applied to heating and ventilation control systems, heating methods, high-efficiency adjustment technologies, etc., can solve the problems of increased load of air-conditioning equipment, single control method, and inability to introduce fresh air volume, so as to avoid prominent noise. , the effect of improving human comfort
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Embodiment approach 1
[0038] In this embodiment, the air conditioner indoor unit includes a fresh air fan and a controller, and the fresh air fan is controlled by the controller. Incidentally, the fresh air fan here is equivalent to the fresh air fan mentioned in the background art, and since the present invention does not relate to the specific structure of the fresh air fan, its detailed description is omitted.
[0039] In addition, the fresh air fan has a stop gear and two operating gears including the first gear (that is, the low-speed operation gear) and the second gear (that is, the high-speed operation gear). The operating noise of the fresh air fan in the lower position increases gradually.
[0040] In addition, the air conditioner indoor unit uses the controller to receive the outdoor temperature value obtained by the outdoor temperature sensor, and when the outdoor temperature value received by the controller is greater than the preset upper limit or lower than the preset lower limit, use...
Embodiment approach 2
[0051] This embodiment is basically the same as Embodiment 1 above, the only difference is that the indoor unit of the air conditioner also uses the detection component to detect the state of the outdoor temperature sensor, and when the detection component detects that the outdoor temperature sensor is faulty, the controller will receive Detect the fault information detected by the components, and set the fresh air fan to the low-speed operation gear.
[0052] Below, refer to figure 2 An example of the control flow of the air-conditioning indoor unit of this embodiment will be described.
[0053] In step S11, the detection component detects whether the outdoor temperature sensor works normally.
[0054] When the detection component detects that the outdoor temperature sensor is faulty in step S11, in step S12, the detected fault information is sent to the controller, and the fresh air fan is set to a low speed gear by the controller.
[0055] When the detection means detect...
Embodiment approach 3
[0060] This embodiment is basically the same as Embodiment 1 above, except that the air-conditioning indoor unit further includes a heat-exchanging fan, and the air-conditioning indoor unit uses a controller to control both the fresh air fan and the heat-exchanging fan. Incidentally, the heat exchange fan here is equivalent to the heat exchange fan mentioned in the background art, and since the present invention does not relate to the specific structure of the heat exchange fan, its detailed description is omitted.
[0061] In this embodiment, the heat exchange fan has a stop gear and a plurality of operating gears including the first gear to the fifth gear, and the operating noises of the heat exchange fans in the first gear to the fifth gear are sequentially Incremental, respectively 46.0dB, 47.0dB, 48.0dB, 49.0dB and 50.0dB; the fresh air fan has a stop gear and includes the first gear (that is, the low-speed operation gear) and the second gear (that is, the high-speed opera...
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