Combined control method of outdoor fan and drain pump of saddle type variable frequency window air conditioner

Abstract

The application discloses a kind of combination control method of outdoor fan and drainage pump of saddle type variable frequency window machine, outdoor fan has M speed gears, drainage pump has N drainage capacity gears, at the initial stage of window machine starting, the speed of outdoor fan is associated with outdoor environment temperature, and outdoor fan selects high gear speed to run as outdoor environment temperature rises;During stable period of window machine operation, the speed of outdoor fan is associated with outdoor environment temperature and compressor frequency, the drainage capacity of drainage pump is associated with the speed of outdoor fan, and outdoor fan selects high gear speed to run as outdoor environment temperature rises and compressor frequency rises, and drainage pump selects high gear drainage capacity to run as the speed of outdoor fan rises.Combination of the operation of outdoor fan and drainage pump improves energy efficiency, reduces noise and improves user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and in particular to a combined control method for an outdoor fan and a drainage pump of a saddle type variable frequency window air conditioner. BACKGROUND

[0002] The saddle type window air conditioner comprises an indoor unit, an outdoor unit and a saddle bridge, the saddle bridge connects the indoor unit and the outdoor unit together, the window air conditioner as a whole has an n-shaped structure, the indoor unit and the outdoor unit are separated by the saddle bridge to separate the indoor and outdoor, effectively reducing the indoor noise, the saddle bridge is placed at the window to realize the installation of the saddle type window air conditioner at the window. The indoor unit is provided with an indoor heat exchanger, an indoor fan, a water pan and the like, the water pan is used to collect the condensed water dropped from the indoor heat exchanger. The outdoor unit is provided with an outdoor heat exchanger, an outdoor fan, a back baffle, a drainage pump and the like, the drainage pump is connected with the water pan on the indoor side through a drainage pipeline to drain the condensed water in the water pan to the bottom plate of the outdoor unit.

[0003] In the saddle type fixed frequency window air conditioner, the rotation speed of the outdoor fan is single and constant, the water flow of the drainage pump is constant, the operation mode of the outdoor fan and the drainage pump in the saddle type fixed frequency window air conditioner cannot be applied to the saddle type variable frequency window air conditioner, because when the variable frequency window air conditioner needs to work at low power, the rotation speed of the fan and the water flow of the drainage pump cannot be reduced, which will cause power waste and large noise, reducing the user experience.

[0004] The above information disclosed in the background of the application is only used to increase the understanding of the background of the application, and therefore, it can include the prior art known by those skilled in the art. SUMMARY

[0005] In view of the problems pointed out in the background, the present application provides a combined control method for an outdoor fan and a drainage pump of a saddle type variable frequency window air conditioner, which improves energy efficiency, reduces noise and improves user experience.

[0006] To achieve the above-mentioned application purposes, the present application adopts the following technical solutions:

[0007] The present application provides a combined control method for an outdoor fan and a drainage pump of a saddle type variable frequency window air conditioner, the window air conditioner comprises an indoor unit, an outdoor unit and a saddle bridge, the saddle bridge is used to connect the indoor unit and the outdoor unit, the indoor unit is provided with an indoor fan, an indoor heat exchanger and a water pan, the outdoor unit is provided with an outdoor fan, an outdoor heat exchanger and a drainage pump, the drainage pump is connected with the water pan through a drainage pipeline, used to drain the condensed water in the water pan to the bottom plate of the outdoor unit, the control method comprises:

[0008] The outdoor fan has M rotation speed gears, and the drainage pump has N water discharge gears.

[0009] In the initial stage of the window machine starting, the rotating speed of the outdoor fan is associated with the outdoor ambient temperature, and the outdoor fan operates at a high gear rotating speed as the outdoor ambient temperature rises;

[0010] In the stable stage of the window machine running, the rotating speed of the outdoor fan is associated with the outdoor ambient temperature and the compressor frequency, the drainage capacity of the drainage pump is associated with the rotating speed of the outdoor fan, and the outdoor fan operates at a high gear rotating speed as the outdoor ambient temperature rises and the compressor frequency rises, and the drainage pump operates at a high gear drainage capacity as the rotating speed of the outdoor fan rises.

[0011] The outdoor fan runs in combination with the drainage flow of the drainage pump, and according to different running scenes, the most suitable pump running flow is matched, so that the running noise and power are reduced, the performance of running is improved, and the overall energy efficiency is improved.

[0012] In some embodiments of the present application, when the window machine runs in any mode of low wind, medium wind, or high wind, in the initial stage of the window machine starting and the stable stage of the window machine running, the rotating speed of the outdoor fan and the drainage capacity of the drainage pump are adjusted according to the outdoor ambient temperature and the frequency of the compressor.

[0013] In some embodiments of the present application, the outdoor ambient temperature has a first temperature interval, a second temperature interval, and a third temperature interval with gradually rising temperatures;

[0014] The frequency of the compressor has a first frequency interval, a second frequency interval, and a third frequency interval with gradually rising frequencies;

[0015] In the stable stage of the window machine running, when the outdoor ambient temperature is in the first temperature interval or the second temperature interval, and the frequency of the compressor is in the first frequency interval, the outdoor fan and the drainage pump operate at the lowest gear;

[0016] When the outdoor ambient temperature is in the third temperature interval, the outdoor fan and the drainage pump operate at the highest gear in the full frequency range of the compressor;

[0017] When the outdoor ambient temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan and the drainage pump operate at the highest gear;

[0018] When the outdoor ambient temperature is in the first temperature interval or the second temperature interval, and the frequency of the compressor is in the second frequency interval or the third frequency interval, the outdoor fan and the drainage pump operate at the intermediate gear.

[0019] In some embodiments of the present application, the outdoor fan has 1 to 7 rotating speed gears, and the drainage pump has 1 to 4 drainage capacity gears;

[0020] when the outdoor ambient temperature is in the third temperature interval, the outdoor fan runs at a seventh speed gear and the drain pump runs at a fourth discharge capacity gear in the full frequency range of the compressor;

[0021] when the outdoor ambient temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan runs at a seventh speed gear and the drain pump runs at a fourth discharge capacity gear;

[0022] when the outdoor ambient temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the first frequency interval, the outdoor fan runs at a first speed gear and the drain pump runs at a first discharge capacity gear;

[0023] when the outdoor ambient temperature is in the first temperature interval and the frequency of the compressor is in the second frequency interval, the outdoor fan runs at a third speed gear and the drain pump runs at a second speed gear;

[0024] when the outdoor ambient temperature is in the second temperature interval and the frequency of the compressor is in the second frequency interval, or when the outdoor ambient temperature is in the first temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan runs at a fifth speed gear and the drain pump runs at a third discharge capacity gear.

[0025] In some embodiments of the present application, the outdoor ambient temperature has a first temperature interval, a second temperature interval, and a third temperature interval with gradually increasing temperatures;

[0026] In the initial stage of starting the window air conditioner, when the outdoor ambient temperature is in the first temperature interval, the outdoor fan runs at a lowest gear;

[0027] when the outdoor ambient temperature is in the second temperature interval, the outdoor fan runs at an intermediate gear;

[0028] when the outdoor ambient temperature is in the third temperature interval, the outdoor fan runs at a highest gear.

[0029] In some embodiments of the present application, the outdoor fan has 1 to 7 speed gears;

[0030] In the initial stage of starting the window air conditioner, when the outdoor ambient temperature is in the first temperature interval, the outdoor fan runs at a first speed gear;

[0031] when the outdoor ambient temperature is in the second temperature interval, the outdoor fan runs at a third speed gear;

[0032] When the outdoor environment temperature is in the third temperature interval, the outdoor fan runs in the seventh speed gear.

[0033] In some embodiments of the present application, after the window machine is turned off, the outdoor fan runs in the middle gear for a period of time and then stops.

[0034] In some embodiments of the present application, when the window machine runs in the silent mode, the outdoor fan and the drainage pump run in the lowest gear.

[0035] In some embodiments of the present application, at the initial stage of the window machine running in the silent mode, the drainage pump is turned off.

[0036] In some embodiments of the present application, the speed of the indoor fan is associated with the running mode of the window machine, and the speed of the indoor fan has three speed gears, i.e., low, middle and high gears.

[0037] When the window machine runs in the silent or low wind mode, the indoor fan runs in the low speed gear.

[0038] When the window machine runs in the middle wind mode, the indoor fan runs in the middle speed gear.

[0039] When the window machine runs in the high wind mode, the indoor fan runs in the high speed gear.

[0040] Other features and advantages of the present application will become more apparent after reading the detailed description of the application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, hereinafter, a brief introduction will be given to the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor based on these drawings.

[0042] Figure 1 Structure schematic diagram of a saddle type variable frequency window machine according to an embodiment viewed from the indoor side;

[0043] Figure 2 Structure schematic diagram of a saddle type variable frequency window machine according to an embodiment viewed from the outdoor side;

[0044] Figure 3 Structure schematic diagram of a saddle type variable frequency window machine according to an embodiment after the saddle bridge is stretched;

[0045] Figure 4 Internal structure layout schematic diagram of an outdoor unit of a saddle type variable frequency window machine according to an embodiment;

[0046] Figure 5A control diagram of an outdoor fan at an initial stage of a window air conditioner according to an embodiment;

[0047] Figure 6 A control diagram of an outdoor fan and a drain pump at a stable operation stage of a window air conditioner according to an embodiment;

[0048] Figure 7 A control diagram of an indoor fan according to an embodiment;

[0049] Figure 8 A graph of a rotational speed of an outdoor fan and a discharge amount of a drain pump according to an embodiment;

[0050] Reference numerals:

[0051] 100 - indoor unit

[0052] 200 - outdoor unit, 210 - compressor, 220 - back partition, 230 - fan bracket

[0053] 300 - saddle bridge

[0054] 400 - electric control box

[0055] 500 - drain pump, 510 - drain line Embodiment

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0057] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0058] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0059] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0060] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "lower", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0061] The following disclosure provides many different embodiments or examples for implementing different structures of the application. In order to simplify the disclosure of the application, the components and arrangements of specific examples are described in the following. Of course, they are only examples, and the purpose is not to limit the application. In addition, the application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0062] The embodiment discloses a saddle type variable frequency window unit, referring to Figures 1 to 3 which comprises an indoor unit 100 located at the indoor side, an outdoor unit 200 located at the outdoor side, and a saddle bridge 300 connecting the indoor unit 100 and the outdoor unit 200.

[0063] The saddle type variable frequency window unit is of n type structure, and the indoor unit 100 and the outdoor unit 200 are respectively arranged at two ends of the saddle bridge 300 and located at the same side of the saddle bridge 300. When the saddle type window unit is installed on the window, the saddle bridge 300 is directly placed on the window, the indoor unit 100 is located at the indoor side, and the outdoor unit 200 is located at the outdoor side.

[0064] The rear backboard of the outdoor unit 200 has a gap with the outdoor side wall. The rear backboard, the left and right side plates, and the top plate of the outdoor unit 200 are provided with air inlets, and the front side plate of the outdoor unit 200 is provided with an air outlet. Outdoor air flows into the inner cavity of the outdoor unit 200 from the air inlets on the back, left and right sides and top of the outdoor unit 200, and flows out from the air outlet on the front side after heat exchange in the outdoor heat exchanger.

[0065] The rear backboard of the indoor unit 100 has a gap with the indoor side wall. The front side plate and the rear backboard of the indoor unit 100 are provided with air inlets, and the top of the indoor unit 100 is provided with an air outlet. Indoor air flows into the inner cavity of the indoor unit 100 from the air inlets on the front side and back side of the indoor unit 100, and flows out from the air outlet on the top after heat exchange in the indoor heat exchanger.

[0066] The saddle bridge 300 can be stretched, and the length of the saddle bridge 300 is adjusted to adapt to different thicknesses of the wall. Figure 1 and Figure 2 The structure of the saddle bridge 300 when not stretched is shown, Figure 3 The structure of the saddle bridge 300 after stretching is shown.

[0067] The inner cavity of the indoor unit 100 is provided with an indoor fan, an indoor heat exchanger, a water pan and other components. The water pan is used to collect the condensed water dripping from the indoor heat exchanger, and the indoor fan is used to blow the gas after heat exchange in the indoor heat exchanger to the indoor.

[0068] Referring to Figure 4 The inner cavity of the outdoor unit 200 is provided with a compressor 210, an outdoor heat exchanger, a rear partition 220, a fan, a fan bracket 230 and other components. The rear partition 220 is used to install the outdoor heat exchanger, the fan bracket 230 is used to install the fan, and the rear partition 220 is fixedly arranged on the bottom plate of the outdoor unit.

[0069] Based on the n-type structure of the saddle type variable frequency window unit in the embodiment, the condensed water in the indoor water pan cannot automatically flow to the outdoor side, and needs to be introduced to the outdoor side by the drainage pump 500. The drainage pump 500 is arranged on the rear partition 220, and the drainage pump 500 is connected with the water pan on the indoor side through the drainage pipeline 510. The condensed water in the water pan is discharged to the outdoor ground through the drainage pump 500.

[0070] For the saddle type variable frequency window unit, the electric control box 400 is too large to be installed in the saddle bridge 300. Therefore, the electric control box 400 is arranged in the outdoor unit 200 in the embodiment.

[0071] The operation control method of the outdoor fan and the drainage pump in the saddle type variable frequency window unit is improved in the application, so as to reduce energy consumption and noise, and improve user experience.

[0072] Specifically, the outdoor fan has M speed gears, and the drainage pump has N drainage volume gears. In the initial start-up period and the stable running period of the window air conditioner, the control logic of the outdoor fan and the drainage pump is different.

[0073] The outdoor fan runs in combination with the drainage flow of the drainage pump, and according to different running scenarios, the most suitable pump running flow is matched, which can effectively reduce the running noise, reduce the running power, improve the running performance, and thus improve the overall energy efficiency.

[0074] In some embodiments of the present application, in the initial start-up period of the window air conditioner, the speed of the outdoor fan is associated with the outdoor environment temperature, and the outdoor fan selects a high gear speed to run as the outdoor environment temperature rises.

[0075] In other words, in the initial start-up period of the window air conditioner, since there is no condensate water or very little condensate water at this time, there is no need for drainage, so the drainage pump is closed at this time, and the speed of the outdoor fan is determined by the outdoor environment temperature, and the outdoor fan selects a high gear speed to run as the outdoor environment temperature rises, that is, when the outdoor environment temperature is high, the outdoor fan runs at a high speed gear, and when the outdoor environment temperature is low, the outdoor fan runs at a low speed gear.

[0076] In some embodiments, the initial start-up period of the window air conditioner is defined as 0-3 minutes.

[0077] In some embodiments, referring to Figure 5 , the outdoor environment temperature has a first temperature interval, a second temperature interval, and a third temperature interval. In the initial start-up period of the window air conditioner, when the outdoor environment temperature is in the first temperature interval, the outdoor fan runs at the lowest gear; when the outdoor environment temperature is in the second temperature interval, the outdoor fan runs at the middle gear; and when the outdoor environment temperature is in the third temperature interval, the outdoor fan runs at the highest gear.

[0078] In some embodiments, referring to Figure 5 , the outdoor fan has 1 to 7 speed gears. In the initial start-up period of the window air conditioner, when the outdoor environment temperature is in the first temperature interval, the outdoor fan runs at the first speed gear; when the outdoor environment temperature is in the second temperature interval, the outdoor fan runs at the third speed gear; and when the outdoor environment temperature is in the third temperature interval, the outdoor fan runs at the seventh speed gear.

[0079] In some embodiments, the seven speed gears of the outdoor fan are: the first speed is 750 rpm, the second speed is 1100 rpm, the third speed is 1200 rpm, the fourth speed is 1300 rpm, the fifth speed is 1400 rpm, the sixth speed is 1500 rpm, and the seventh speed is 1580 rpm.

[0080] The first temperature interval is defined as <22℃, the second temperature interval is defined as 22-29℃, and the third temperature interval is defined as >29℃.

[0081] With reference to the foregoing Figure 5 , when the outdoor ambient temperature is lower than 22℃, the outdoor fan runs at the first speed gear, i.e., at a speed of 750 rpm; when the outdoor ambient temperature is between 22-29℃, the outdoor fan runs at the third speed gear, i.e., at a speed of 1200 rpm; when the outdoor ambient temperature is higher than 29℃, the outdoor fan runs at the seventh speed gear, i.e., at a speed of 1580 rpm; after the outdoor fan reaches the appropriate speed, the outdoor fan runs stably.

[0082] In some embodiments of the present application, during the stable running period of the window air conditioner, the speed of the outdoor fan is associated with the outdoor ambient temperature and the frequency of the compressor, the drainage capacity of the drainage pump is associated with the speed of the outdoor fan, the outdoor fan runs at a high gear speed as the outdoor ambient temperature and the frequency of the compressor increase, and the drainage pump runs at a high gear drainage capacity as the speed of the outdoor fan increases.

[0083] In other words, during the stable running period of the window air conditioner, condensate water is continuously generated on the indoor side, and needs to be drained, so the drainage pump is turned on at this time to drain the condensate water in the indoor water pan to the outdoor side in a timely manner, and the speed of the outdoor fan is determined by the outdoor ambient temperature and the frequency of the compressor, and at the same time, the speed of the outdoor fan determines the drainage capacity of the drainage pump. Because a small amount of noise is also generated when the drainage pump runs, coordinating the drainage capacity of the drainage pump according to the speed of the outdoor fan can achieve the effects of reducing noise, improving air volume, and improving energy efficiency.

[0084] In some embodiments, the time period after the window air conditioner is started for 3 minutes is defined as the stable running period of the window air conditioner.

[0085] In some embodiments, with reference to the foregoing Figure 6 , the outdoor ambient temperature has a first temperature interval, a second temperature interval, and a third temperature interval with gradually increasing temperatures, and the frequency of the compressor has a first frequency interval, a second frequency interval, and a third frequency interval with gradually increasing frequencies.

[0086] The temperature ranges of the first temperature interval, the second temperature interval, and the third temperature interval of the outdoor ambient temperature are described above and will not be repeated here.

[0087] The first frequency interval of the compressor is 0-30 Hz, the second frequency interval is 30-50 Hz, and the third frequency interval is >50 Hz.

[0088] In the stable operation period of the window unit, when the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the first frequency interval, the outdoor fan and the drainage pump operate at the lowest gear; when the outdoor environment temperature is in the third temperature interval, the outdoor fan and the drainage pump operate at the highest gear in the full frequency range of the compressor; when the outdoor environment temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan and the drainage pump operate at the highest gear; when the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the second frequency interval or the third frequency interval, the outdoor fan and the drainage pump operate at the intermediate gear.

[0089] The rotation speed of the outdoor fan and the drainage capacity of the drainage pump are determined according to the outdoor environment temperature and the frequency of the compressor, which on the one hand, reduces the energy consumption and noise while ensuring the working performance of the window unit.

[0090] In some embodiments, Figure 6 In the matrix, the larger font number represents the rotation speed gear of the outdoor fan, and the smaller font number represents the drainage capacity gear of the drainage pump. The outdoor fan has 1 to 7 rotation speed gears, and the 7 rotation speed gears of the outdoor fan are described above and will not be repeated. The drainage pump has 1 to 4 drainage capacity gears, which are first gear 80 ml / min, second gear 90 ml / min, third gear 100 ml / min, and fourth gear 110 ml / min. The relationship between the rotation speed of the outdoor fan and the drainage capacity of the drainage pump is shown in Table 1. Figure 8

[0091] When the outdoor fan operates at the first rotation speed gear or the second rotation speed gear, the drainage pump operates at the first drainage capacity gear; when the outdoor fan operates at the third rotation speed gear or the fourth rotation speed gear, the drainage pump operates at the second drainage capacity gear; when the outdoor fan operates at the fifth rotation speed gear or the sixth rotation speed gear, the drainage pump operates at the third drainage capacity gear; and when the outdoor fan operates at the seventh rotation speed gear, the drainage pump operates at the fourth drainage capacity gear.

[0092] When the outdoor environment temperature is in the third temperature interval, the outdoor fan operates at the seventh rotation speed gear and the drainage pump operates at the fourth drainage capacity gear in the full frequency range of the compressor;

[0093] When the outdoor environment temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan operates at the seventh rotation speed gear and the drainage pump operates at the fourth drainage capacity gear;

[0094] When the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the first frequency interval, the outdoor fan operates at the first rotation speed gear and the drainage pump operates at the first drainage capacity gear;

[0095] ​When the outdoor environment temperature is in the first temperature interval and the frequency of the compressor is in the second frequency interval, the outdoor fan runs at a third speed gear, and the drain pump runs at a second displacement gear.

[0096] When the outdoor environment temperature is in the second temperature interval and the frequency of the compressor is in the second frequency interval, or when the outdoor environment temperature is in the first temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan runs at a fifth speed gear, and the drain pump runs at a third displacement gear.

[0097] In some embodiments of the present application, the window unit has four working modes: silence, low wind, medium wind, and high wind.

[0098] When the window unit runs in any of the low wind, medium wind, and high wind modes, the speed of the outdoor fan and the displacement of the drain pump are adjusted according to the outdoor environment temperature and the frequency of the compressor during the initial start-up period and the stable running period of the window unit, that is, during the initial start-up period of the window unit, the speed of the outdoor fan is associated with the outdoor environment temperature, during the stable running period of the window unit, the speed of the outdoor fan is associated with the outdoor environment temperature and the frequency of the compressor, and the displacement of the drain pump is associated with the speed of the outdoor fan.

[0099] When the window unit runs in the silence mode, the outdoor fan and the drain pump run at the lowest gear, that is, the outdoor fan runs at the first speed gear, and the drain pump runs at the first displacement gear, so as to reduce the outdoor water volume, which is less than the evaporation speed, thereby reducing the water level in the outdoor chassis and the noise of the running drain pump, and reducing the noise generated by the outdoor fan splashing water.

[0100] In addition, during the initial running period of the window unit in the silence mode, the drain pump is turned off, because no condensate water is generated or little condensate water is generated, and there is no need to drain water.

[0101] In some embodiments of the present application, after the window unit is turned off, the outdoor fan runs at the intermediate gear for a period of time and then stops. For example, after the window unit is turned off, the outdoor fan runs at the third speed gear for 15 seconds and then stops. The drain pump will monitor the water volume in the water pan, and all the condensate water will be removed to prevent the condensate water in the water pan from being deteriorated due to the long time.

[0102] In some embodiments of the present application, with reference to Figure 7 the speed of the indoor fan is associated with the running mode of the window unit, and the speed of the indoor fan has three speed gears: low, medium, and high.

[0103] When the window unit runs in the silence or low wind mode, the indoor fan runs at the low speed gear; when the window unit runs in the medium wind mode, the indoor fan runs at the medium speed gear; and when the window unit runs in the high wind mode, the indoor fan runs at the high speed gear.

[0104] In some embodiments, the low gear speed of the indoor fan is 610 revolutions, the middle gear speed is 1400 revolutions, and the high gear speed is 1680 revolutions.

[0105] In the description of the above implementation, the specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0106] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method for combined control of an outdoor fan and a drain pump of a saddle type variable frequency window air conditioner, the window air conditioner comprising an indoor unit, an outdoor unit, and a saddle bridge for connecting the indoor unit and the outdoor unit, the indoor unit being provided with an indoor fan, an indoor heat exchanger, and a water pan, the outdoor unit being provided with an outdoor fan, an outdoor heat exchanger, and a drain pump, the drain pump being connected to the water pan through a drain pipeline for draining condensate water in the water pan to a bottom plate of the outdoor unit, characterized in that, The control method comprises: The outdoor fan has M speed gears, and the drainage pump has N drainage gears; In the initial stage of starting of the window machine, the speed of the outdoor fan is associated with the outdoor environment temperature, and the outdoor fan selects a high gear speed to run as the outdoor environment temperature rises; In the stable running stage of the window machine, the speed of the outdoor fan is associated with the outdoor environment temperature and the compressor frequency, the drainage amount of the drainage pump is associated with the speed of the outdoor fan, the outdoor fan selects a high gear speed to run as the outdoor environment temperature rises and the compressor frequency rises, and the drainage pump selects a high gear drainage amount to run as the speed of the outdoor fan rises.

2. The combined control method of the outdoor fan and the drainage pump according to claim 1, characterized in that, when the window machine runs in any mode of low wind, medium wind or high wind, in the initial stage of starting of the window machine and in the stable running stage of the window machine, the speed of the outdoor fan and the drainage amount of the drainage pump are adjusted according to the outdoor environment temperature and the frequency of the compressor.

3. The combined control method of the outdoor fan and the drainage pump according to claim 2, characterized in that, the outdoor environment temperature has a first temperature interval, a second temperature interval and a third temperature interval in which the temperature gradually rises; the frequency of the compressor has a first frequency interval, a second frequency interval and a third frequency interval in which the frequency gradually rises; in the stable running stage of the window machine, when the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the first frequency interval, the outdoor fan and the drainage pump run at the lowest gear; when the outdoor environment temperature is in the third temperature interval, in the full frequency range of the compressor, the outdoor fan and the drainage pump run at the highest gear; when the outdoor environment temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan and the drainage pump run at the highest gear; when the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the second frequency interval, the outdoor fan and the drainage pump run at the intermediate gear.

4. The combined control method of the outdoor fan and the drainage pump according to claim 3, characterized in that, the outdoor fan has 1 to 7 speed gears, and the drainage pump has 1 to 4 drainage gears; when the outdoor environment temperature is in the third temperature interval, in the full frequency range of the compressor, the outdoor fan runs at the seventh speed gear, and the drainage pump runs at the fourth drainage gear; when the outdoor environment temperature is in the second temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan runs at the seventh speed gear, and the drainage pump runs at the fourth drainage gear; when the outdoor environment temperature is in the first temperature interval or the second temperature interval and the frequency of the compressor is in the first frequency interval, the outdoor fan runs at the first speed gear, and the drainage pump runs at the first drainage gear; When the outdoor ambient temperature is in the first temperature interval and the frequency of the compressor is in the second frequency interval, the outdoor fan runs at a third speed level, and the drain pump runs at a second water discharge level; When the outdoor ambient temperature is in the second temperature interval and the frequency of the compressor is in the second frequency interval, or when the outdoor ambient temperature is in the first temperature interval and the frequency of the compressor is in the third frequency interval, the outdoor fan runs at a fifth speed level, and the drain pump runs at a third water discharge level.

5. The outdoor fan and drain pump combination control method according to claim 2, wherein The outdoor ambient temperature has a first temperature interval, a second temperature interval, and a third temperature interval, in which the temperature gradually increases; In the initial stage of the window unit starting, when the outdoor ambient temperature is in the first temperature interval, the outdoor fan runs at a lowest level; When the outdoor ambient temperature is in the second temperature interval, the outdoor fan runs at an intermediate level; When the outdoor ambient temperature is in the third temperature interval, the outdoor fan runs at a highest level.

6. The outdoor fan and drain pump combination control method according to claim 5, wherein The outdoor fan has 1 to 7 speed levels; In the initial stage of the window unit starting, when the outdoor ambient temperature is in the first temperature interval, the outdoor fan runs at a first speed level; When the outdoor ambient temperature is in the second temperature interval, the outdoor fan runs at a third speed level; When the outdoor ambient temperature is in the third temperature interval, the outdoor fan runs at a seventh speed level.

7. The outdoor fan and drain pump combination control method according to any one of claims 1 to 6, wherein After the window unit is turned off, the outdoor fan runs at an intermediate level for a period of time and then stops.

8. The outdoor fan and drain pump combination control method according to any one of claims 1 to 6, wherein When the window unit runs in a silent mode, the outdoor fan and the drain pump run at a lowest level.

9. The outdoor fan and drain pump combination control method according to claim 8, wherein In the initial stage of the window unit running in the silent mode, the drain pump is turned off.

10. The outdoor fan and drain pump combination control method according to any one of claims 1 to 6, wherein The speed of the indoor fan is associated with the operation mode of the window unit, and the speed of the indoor fan has three speed levels, i.e., a low speed level, a medium speed level, and a high speed level; When the window unit runs in a silent or low wind mode, the indoor fan runs at a low speed level; When the window unit runs in a medium wind mode, the indoor fan runs at a medium speed level; When the window unit runs in a high wind mode, the indoor fan runs at a high speed level.

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