CN109945447B

CN109945447B - Control method of air conditioner

Info

Publication number: CN109945447B
Application number: CN201910180985.3A
Authority: CN
Inventors: 司徒洪杰
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-03-11
Filing date: 2019-03-11
Publication date: 2021-05-25
Anticipated expiration: 2039-03-11
Also published as: CN109945447A

Abstract

The invention discloses a control method of an air conditioner, wherein the air conditioner has a no-wind-sense mode, in the no-wind-sense mode, a cool-sense area of the air conditioner along the air flowing direction comprises a wind-sense area and a no-wind-sense area, the distance between the boundary of the wind-sense area and the no-wind-sense area and the air conditioner is the no-wind-sense distance, the no-wind-sense mode comprises a plurality of no-wind-sense grades, and the no-wind-sense distances corresponding to the non-wind-sense grades are different. The control method comprises the following steps: s1: when the air conditioner is in a no-wind mode, detecting whether a target object exists in the front area of the air conditioner; s2: if so, acquiring the closest distance between the target object and the air conditioner, and comparing the closest distance with a plurality of non-wind-sensing distances; s3: and switching the air conditioner to the corresponding non-wind-sensation level according to the comparison result so that the target object is positioned in the corresponding non-wind-sensation area. According to the control method of the air conditioner, the non-wind-sensing function of the air conditioner is improved, and the intelligent degree of the air conditioner is improved.

Description

Control method of air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner.

Background

In the related art, the air conditioner has a no-wind mode to achieve a no-wind effect. However, some air conditioners are inconvenient to operate when the far and near non-wind feeling function is realized, and the non-wind feeling mode of the air conditioner cannot be adapted to the requirement of a user for non-wind feeling, so that the user experience effect is poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method of an air conditioner, which can improve the no-wind-sense function of the air conditioner and improve the intelligent degree of the air conditioner.

The invention also provides a control method of the air conditioner, which can enable the air conditioner to have rich air supply effect, improve the non-wind-sensing function of the air conditioner and improve the intelligent degree of the air conditioner.

According to the control method of the air conditioner of the embodiment of the first aspect of the invention, the air conditioner has a no-wind mode, in the no-wind mode, a cool area of the air conditioner along an air flow direction includes a wind area and a no-wind area, a distance between a boundary of the wind area and the no-wind area and the air conditioner is a no-wind distance, in the no-wind area, an average value of an air flow speed is not higher than 0.3m/s and a DR value of a blowing sensation index is not more than 5%, the no-wind mode includes a plurality of no-wind levels, and the no-wind distances corresponding to the no-wind levels are different; the control method comprises the following steps: s1: detecting whether a target object exists in a front area of the air conditioner when the air conditioner is in the no-wind mode; s2: if so, acquiring the closest distance between the target object and the air conditioner, and comparing the closest distance with a plurality of non-wind-sensing distances; s3: and switching the air conditioner to the corresponding no-wind-feeling level according to the comparison result so that the target object is located in the corresponding no-wind-feeling area.

According to the control method of the air conditioner, the air conditioner can automatically adapt to the corresponding no-wind-sensation grade according to the closest distance between the target object and the shell, the intelligent degree of the air conditioner is improved, the no-wind-sensation function of the air conditioner is improved, and therefore the experience effect of a user is improved.

According to some embodiments of the present invention, when the air conditioner is switched to the corresponding no-wind level, an operation frequency of a compressor of the air conditioner is reduced to a set frequency.

According to some embodiments of the invention, after the operating frequency of the compressor is a set frequency; detecting the indoor environment temperature, comparing the indoor environment temperature with the set temperature to obtain a temperature difference, increasing the running frequency of the compressor when the temperature difference is larger than the set value, and reducing the running frequency of the compressor when the temperature difference is smaller than the set value.

According to the control method of the air conditioner of the embodiment of the second aspect of the invention, the air conditioner comprises a shell, a first fan assembly and a second fan assembly, the shell is provided with a first air outlet and a second air outlet, the first fan assembly is a counter-rotating fan, the first fan assembly comprises a first fan and a second fan which are arranged along the air flow direction, the first fan assembly blows air towards the first air outlet, the second fan assembly blows air towards the second air outlet, the air conditioner has a no-wind-sensation mode, in the no-wind-sensation mode, a cool-sensation area of the air conditioner along the air flow direction comprises a wind-sensation area and a no-wind-sensation area, the distance between the boundary of the wind-sensation area and the no-wind-sensation area and the air conditioner is a no-wind-sensation distance, in the no-wind-sensation area, the average value of the air flow speed is not higher than 0.3m/s, and the DR value of the blowing sensation index is not more than 5%, the non-wind feeling mode comprises a plurality of non-wind feeling grades, and the non-wind feeling distances corresponding to the non-wind feeling grades are different; the control method comprises the following steps: s1: detecting whether a target object exists in a front area of the shell when the air conditioner is in the no-wind mode; s2: if so, acquiring the closest distance between the target object and the shell, and comparing the closest distance with a plurality of non-wind-sensing distances; s3: and switching the air conditioner to the corresponding no-wind-feeling level according to the comparison result so that the target object is located in the corresponding no-wind-feeling area.

According to some embodiments of the invention, a camera is used for determining whether a target object exists or not and acquiring the closest distance between the target object and the shell, so that the cost of the air conditioner is reduced.

According to some embodiments of the present invention, the plurality of no-wind-sensation levels include a first gear to an nth gear, and the no-wind-sensation distance is gradually increased from the first gear to the nth gear, thereby simplifying a control logic of the air conditioner.

According to some embodiments of the present invention, the rotation speed of the second fan assembly is maintained constant in N gears, so that the control method of the air conditioner is simpler.

According to some embodiments of the present invention, the second fan is located downstream of the first fan in an air flow direction, the first fan is controlled to stop rotating in each of non-wind-sensation levels from a first gear to an M-th gear, wherein the higher the gear is, the higher the rotation speed of the second fan is, and M < N. Therefore, the high-grade non-wind-sensation grade is guaranteed, and a large non-wind-sensation distance can be realized.

According to some embodiments of the present invention, in each of the gears from the M +1 th gear to the N th gear, the first fan is controlled to rotate, further ensuring the air supply distance in the high gear.

According to some embodiments of the invention, in each gear from the (M + 1) th gear to the (N) th gear, the rotation speed of the second fan is greater than that of the first fan, so as to improve the air supply effect of the first fan assembly.

According to some embodiments of the present invention, in a plurality of gears from the M +1 th gear to the N th gear, the higher the gear is, the higher the rotation speed of the second fan is, and the longer the non-wind sensing distance is ensured.

According to some embodiments of the present invention, when the air conditioner is switched to the corresponding no-wind level, the operation frequency of the compressor is reduced to a set frequency so as to be adapted to the no-wind level.

According to some embodiments of the invention, after the operating frequency of the compressor is the set frequency; detecting the indoor environment temperature, comparing the indoor environment temperature with the set temperature to obtain a temperature difference, increasing the running frequency of the compressor when the temperature difference is larger than the set value, and reducing the running frequency of the compressor when the temperature difference is smaller than the set value. Therefore, the situation that the difference value between the ambient temperature and the set temperature is too large is avoided, and the comfort level of a user is improved.

According to some embodiments of the invention, the first switch door which slides up and down to open or close the first air outlet is arranged on the machine shell, so that the operation is convenient, and the attractiveness is ensured.

According to some embodiments of the invention, the second switch door which moves back and forth to open or close the second air outlet is arranged on the machine shell, so that the operation is simple, and the science and technology sense is improved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic control flow diagram of an air conditioner according to a first embodiment of the present invention;

fig. 2 is a schematic control flow diagram of an air conditioner according to a second embodiment of the present invention;

fig. 3 is a control flow diagram of an air conditioner according to a third embodiment of the present invention;

fig. 4 is a schematic structural view of an air conditioner according to an embodiment of the present invention;

fig. 5 is a sectional view of the air conditioner shown in fig. 4;

fig. 6 is an exploded view of a partial structure of the air conditioner shown in fig. 4;

FIG. 7 is a schematic illustration of a mating arrangement of the first and second fan assemblies shown in FIG. 5;

fig. 8 is a control flow diagram of an air conditioner according to a fourth embodiment of the present invention;

fig. 9 is a schematic control flow diagram of an air conditioner according to a fifth embodiment of the present invention;

fig. 10 is a control flow diagram of an air conditioner according to a sixth embodiment of the present invention.

Reference numerals:

an air conditioner 100,

A casing 1, a panel member 11, a first outlet 11a, a second outlet 11b, a mounting plate 12,

A first fan assembly 2, a first fan 21, a second fan 22,

A second fan assembly 3, a third fan 31,

A first switch door 4, a second switch door 5,

A heat exchanger component 6, a first driving mechanism 7, a transmission gear 71, a rack 72,

A camera 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A control method of the air conditioner 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, according to the control method of the air conditioner 100 according to the first aspect of the present invention, the air conditioner 100 has a no-wind mode in which the cool area of the air conditioner 100 along the air flow direction includes a wind area and a no-wind area, the distance from the boundary of the wind area and the no-wind area to the air conditioner 100 is a no-wind distance, and in the no-wind area, the average value of the air flow velocity is not higher than 0.3m/s, that is, the average value of the air flow velocity is less than or equal to 0.3m/s, and the value of the blowing sense index DR is not higher than 5%, and the no-wind mode includes a plurality of no-wind levels, and the no-wind distances corresponding to the plurality of no-wind levels are different.

In the no-wind mode, the wind outlet direction of the air conditioner 100 may include a wind-sensitive region, a no-wind region and a no-wind region, which are sequentially distributed from near to far, the wind-sensitive region is closest to the air conditioner 100, the air flow speed in the region is high, the blowing feeling (i.e., the discomfort feeling of the undesired body local cooling caused by the air flow) felt by the user is high, and the user is prone to generate discomfort. The no-wind zone is farthest away from the air conditioner 100, where the air flow velocity is nearly zero and the user does not feel the wind at all. The non-wind feeling region is located between the wind blowing feeling region and the non-wind region, the air flowing speed in the region is slow, the wind feeling felt by the user does not cause discomfort to the user, and the user can feel cooling or heating of the air conditioner 100, thus having high use comfort. Therefore, in the no-wind mode, the air outlet direction of the air conditioner 100 may include a cool region and a no-wind region, which are sequentially distributed from the near to the far, and the user may perceive cooling or heating of the air conditioner 100 in the cool region. Wherein, the no wind feeling in the above description is not no wind in the sense of words, but by controlling the wind speed and the wind direction, the DR value of the no wind feeling area is controlled to meet the no wind feeling standard, and the no wind feeling can be understood as an indoor comfortable environment; DR values are used to quantitatively predict the percentage of dissatisfied persons caused by feelings of blowing.

Since the distance between the boundary between the wind-sensitive area and the non-wind-sensitive area and the air conditioner 100 is the non-wind-sensitive distance, the non-wind-sensitive distance may be understood as the closest distance between the non-wind-sensitive area and the air conditioner 100 or the farthest distance between the wind-sensitive area and the air conditioner 100. In other words, the non-wind-sensing area can be understood as the area length value Δ of the non-wind-sensing area added to the corresponding non-wind-sensing distance along the wind outlet direction of the air conditioner 100 from the corresponding non-wind-sensing distance₁The area length value Delta of the area without wind sensation area₁The wind-sensing area can be specifically set according to practical applications, and the length Δ of the wind-sensing area from the air conditioner 100 to the corresponding wind-sensing area along the wind outlet direction of the air conditioner 100 can be understood as the area length Δ₂The region length delta of the wind-sensitive region₂The specific setting can be based on the practical application, and the length of the area in which the wind-sensitive area exists can be understood as the non-wind-sensitive distance. For example, the non-wind-feeling distance corresponding to one non-wind-feeling level is 1m, and the area length value Δ of the corresponding non-wind-feeling area₁May be taken to be 1m, the corresponding non-wind-sensing area is an area between 1m and 2m away from the air conditioner 100, and the corresponding wind-sensing area is an area between 1m away from the air conditioner 100. It will be appreciated that the zone length values Δ for the plurality of non-wind sensitive zones₁The zone length values delta of a plurality of wind-sensitive zones can be equal or unequal₂May be mutually different from each other; for example, two of the non-wind-sensitive areas may be respectively connected with the casing 1A region between 1m and 2m apart, and a region between 3.5m and 4m apart from the cabinet 1.

As shown in fig. 1 to 3, the control method of the air conditioner 100 includes the steps of: s1: when the air conditioner 100 is in the no-wind mode, detecting whether a target object exists in a front area of the air conditioner 100, wherein the front area of the air conditioner 100 can be understood as a wind outlet area of the air conditioner 100; s2: if so, obtaining the closest distance between the target object and the air conditioner 100, and comparing the closest distance with a plurality of non-wind-sensing distances; s3: according to the comparison result, the air conditioner 100 is switched to the corresponding no-wind level such that the target object is located within the corresponding no-wind region.

For example, if the number of non-wind-sensation levels is x (x may be a natural number greater than 1), x non-wind-sensation levels correspond to x non-wind-sensation regions, x non-wind-sensation levels correspond to x wind-sensation regions, each non-wind-sensation level corresponds to a non-wind-sensation distance, and the non-wind-sensation distances corresponding to the x non-wind-sensation levels may be respectively denoted as L₁、L₂、…、L_xAnd x wind-free areas can be respectively marked as omega₁、Ω₂、…、Ω_xAnd x wind-sensitive areas can be respectively marked as omega₁’、Ω₂’、…、Ω_x’，L₁Is omega₁And omega₁The distance between the boundary of' and the air conditioner 100 can also be understood as the region Ω₁The closest distance, L, to the air conditioner 100₂Is omega₂And omega₂The distance between the boundary of' and the air conditioner 100 can also be understood as the region Ω₂Closest distance to the air conditioner 100, …, L_xIs omega_xAnd omega_xThe distance range between the boundary of' and the air conditioner 100 can also be understood as Ω_xThe closest distance to the air conditioner 100.

When the air conditioner 100 is in the no-wind mode, whether a target object exists in the front area of the air conditioner 100 is detected, if yes, the shortest distance L between the target object and the air conditioner 100 is acquired, and the shortest distance L and a plurality of no-wind distances L are determined₁、L₂、…、L_xComparing; if L is₁≤L＜L₂Then the air conditioner 100 is switched to the non-wind sensing distance L₁Corresponding no-wind-feeling level such that a position having a closest distance L from the air conditioner 100 is in a no-wind-feeling region Ω₁In to above-mentioned position realizes no wind sense effect, promotes the travelling comfort, if L₂≤L＜L₃Then the air conditioner 100 is switched to the non-wind sensing distance L₂Corresponding no-wind-feeling level such that a position having a closest distance L from the air conditioner 100 is in a no-wind-feeling region Ω₂The position realizes no wind sense effect, and so on, if L is more than or equal to L_xThen the air conditioner 100 is switched to the non-wind sensing distance L_xCorresponding no-wind-feeling level such that a position having a closest distance L from the air conditioner 100 is in a no-wind-feeling region Ω_xAnd thus the above position achieves a non-wind effect.

It is understood that the above-described control process may be employed when the accuracy of obtaining the closest distance L between the target object and the air conditioner 100 is high; if the accuracy of obtaining the shortest distance L 'between the target object and the air conditioner 100 is low, the error s may be considered, for example, when the air conditioner 100 is in the no-wind mode, whether the target object exists in the front area of the air conditioner 100 is detected, if so, the shortest distance L' between the target object and the air conditioner 100 is obtained, and if so, the comparison value after considering the error s and the plurality of no-wind distances L may be considered due to the error₁、L₂、…、L_xComparing; if L is₁≤L’±ε＜L₂Then the air conditioner 100 is switched to the non-wind sensing distance L₁Corresponding no-wind-feeling level such that a position having a closest distance L from the air conditioner 100 is in a no-wind-feeling region Ω₁In to above-mentioned position realizes no wind sense effect, promotes the travelling comfort, if L₂≤L’±ε＜L₃Then the air conditioner 100 is switched to the non-wind sensing distance L₂Corresponding no-wind-feeling level such that a position having a closest distance L' from the air conditioner 100 is in a no-wind-feeling region Ω₂In the interior, the above-mentioned position can implement non-wind-sensing effect, and so on, if L' +/-epsilon is greater than or equal to L_xThen the air conditioner 100 is switched to the non-wind sensing distance L_xCorrespond toSuch that a position having a closest distance L' from the air conditioner 100 is in the no-wind zone Ω_xAnd thus the above position achieves a non-wind effect.

The target object can be an individual user; in step S3, the air conditioner 100 may implement the switching of the no-wind level by the rotation speed of the fan of the air conditioner 100. It is understood that when the air conditioner 100 is in the no-wind mode, the air conditioner 100 may cool as well as heat.

According to the control method of the air conditioner 100 provided by the embodiment of the invention, the air conditioner 100 can realize the no-wind-sensation effect at different distances, and the air conditioner 100 can automatically adapt to the corresponding no-wind-sensation grade according to the closest distance between the target object and the air conditioner 100, so that the no-wind-sensation grade of the air conditioner 100 is automatically adapted to the no-wind-sensation requirement of a user, manual adjustment or remote controller adjustment is not needed, the intelligent degree of the air conditioner 100 is improved, the no-wind-sensation function of the air conditioner 100 is improved, the air conditioner 100 is more intelligent when realizing the far and near no-wind-sensation function, the operation of the user is facilitated, and the experience effect of the user is improved; moreover, when there are a plurality of target objects, the air conditioner 100 can simultaneously ensure the comfort of the plurality of target objects, avoid the strong feeling of blowing felt by at least one of the target objects, and ensure that the air conditioner 100 has good applicability.

It is understood that when a plurality of target objects are detected in the front area of the air conditioner 100, a specific implementation process of acquiring the closest distance between the target objects and the air conditioner 100 may be specifically set according to an actual application; for example, the distance between each target object and the air conditioner 100 may be obtained first, and then the distances may be compared to obtain the closest distance; but is not limited thereto.

In some embodiments of the present invention, as shown in fig. 2 and 3, when the air conditioner 100 is switched to the corresponding no-wind level, the operating frequency of the compressor of the air conditioner 100 is reduced to a set frequency. It is understood that the operating frequency of the compressor may be different when the air conditioner 100 is in the normal blowing mode and the no-wind mode. Because the air supply speed in the no-wind-sensation mode is relatively slow, the required operation frequency of the compressor is relatively low, and the compressor needs to be operated in a frequency limiting mode at the moment. The energy consumption of the air conditioner 100 can be reduced by reducing the operating frequency of the compressor, and the lifespan of the compressor can also be extended. For example, the set frequency may be 35Hz, that is, when the air conditioner 100 is controlled to switch to the no-wind mode, the operating frequency of the compressor may be reduced to 35 Hz; of course, the setting frequency may be set to other values without being limited thereto.

Further, as shown in fig. 3, after the operating frequency of the compressor is the set frequency, the indoor ambient temperature is detected, and the indoor ambient temperature and the set temperature are compared to obtain a temperature difference, when the temperature difference is greater than the set value, the operating frequency of the compressor is increased, and when the temperature difference is less than the set value, the operating frequency of the compressor is decreased. Therefore, the refrigeration and heating efficiency of the air conditioner 100 can be ensured, the overlarge difference between the ambient temperature and the set temperature is avoided, the comfort level of a user is improved, and the energy consumption of the air conditioner 100 can be reduced. Wherein, the specific value of the set value can be specifically set according to the practical application; the set temperature may be a set temperature corresponding to a current no-wind level of the air conditioner 100.

For example, after the operating frequency of the compressor is set to the set frequency, if the temperature difference between the detected indoor environment temperature and the set temperature corresponding to the current gear is greater than or equal to 8 ℃, the operating frequency of the compressor is adjusted to 40 Hz. If the temperature difference between the indoor environment temperature and the set temperature corresponding to the current gear is less than 8 ℃, reducing the running frequency of the compressor to 25 Hz; but is not limited thereto.

As shown in fig. 4, 6 and 7, according to the control method of the air conditioner 100 according to the embodiment of the second aspect of the present invention, the air conditioner 100 includes a casing 1, a first fan assembly 2 and a second fan assembly 3, a first air outlet 11a and a second air outlet 11b are arranged on the casing 1, the first air outlet 11a and the second air outlet 11b may both be formed on a front side wall of the casing 1, and the first air outlet 11a and the second air outlet 11b may be arranged at intervals in an up-down direction; first fan subassembly 2 is to the cyclone, and first fan subassembly 2 includes first fan 21 and the second fan 22 of arranging along the air flow direction, and first fan subassembly 2 is towards first air outlet 11a air supply, and second fan subassembly 3 is towards second air outlet 11b air supply.

The air conditioner 100 has a no-wind mode in which a cool region of the air conditioner along an air flow direction includes a wind-sensitive region and a no-wind region, a distance between a boundary of the wind-sensitive region and the no-wind region and the air conditioner is a no-wind distance, an average value of an air flow velocity is not higher than 0.3m/s and a value of a blowing sense index DR is not more than 5% in the no-wind region, the no-wind mode includes a plurality of no-wind levels, and the no-wind distances corresponding to the plurality of no-wind levels are different. The understanding of the "cool region", "wind region", "no wind region" and "no wind distance" can be as described above, and will not be described herein.

As shown in fig. 8 to 10, the control method of the air conditioner 100 includes the steps of: s1: when the air conditioner 100 is in the no-wind mode, detecting whether a target object exists in a front area of the casing 1, wherein the front area of the casing 1 can be understood as a wind outlet area of the air conditioner 100; s2: if so, acquiring the closest distance between the target object and the shell 1, and comparing the closest distance with a plurality of non-wind-sensing distances; s3: according to the comparison result, the air conditioner 100 is switched to the corresponding no-wind level such that the target object is located within the corresponding no-wind region.

When the air conditioner 100 is in the no-wind mode, whether a target object exists in the front area of the machine shell 1 is detected, if yes, the shortest distance L between the target object and the machine shell 1 is obtained, and the shortest distance L and a plurality of no-wind distances L are obtained₁、L₂、…、L_xComparing; if L is₁≤L＜L₂Then the air conditioner 100 is switched to the non-wind sensing distance L₁Corresponding no-wind feeling level, so that the position with the nearest distance L from the shell 1 is in the no-wind feeling region omega₁In to above-mentioned position realizes no wind sense effect, promotes the travelling comfort, if L₂≤L＜L₃Then the air conditioner 100 is switched to the non-wind sensing distance L₂Corresponding no-wind feeling level, so that the position with the nearest distance L from the shell 1 is in the no-wind feeling region omega₂And if L is more than or equal to L, the effect of no wind sensation is realized at the position, and so on_xThen the air conditioner 100 is switched to the non-wind sensing distance L_xCorresponding no-wind feeling level, so that the position with the nearest distance L from the shell 1 is in the no-wind feeling region omega_xAnd thus the above position achieves a non-wind effect.

It is understood that the above control process may be adopted when the accuracy of obtaining the closest distance L between the target object and the housing 1 is high; if the accuracy of obtaining the shortest distance L 'between the target object and the cabinet 1 is low, the error s may be considered, for example, when the air conditioner 100 is in the no-wind mode, whether the target object exists in the front area of the cabinet 1 is detected, and if so, the shortest distance L' between the target object and the cabinet 1 is obtained, and if so, the comparison value in which the error s is considered and the plurality of no-wind distances L are obtained due to the error₁、L₂、…、L_xComparing; if L is₁≤L’±ε＜L₂Then air conditionerThe device 100 is switched to a non-wind-sensing distance L₁Corresponding no-wind feeling level, so that the position with the nearest distance L from the shell 1 is in the no-wind feeling region omega₁In to above-mentioned position realizes no wind sense effect, promotes the travelling comfort, if L₂≤L’±ε＜L₃Then the air conditioner 100 is switched to the non-wind sensing distance L₂Corresponding no-wind feeling level, so that the position with the nearest distance L' from the casing 1 is in the no-wind feeling region omega₂In the interior, the above-mentioned position can implement non-wind-sensing effect, and so on, if L' +/-epsilon is greater than or equal to L_xThen the air conditioner 100 is switched to the non-wind sensing distance L_xCorresponding no-wind feeling level, so that the position with the nearest distance L' from the casing 1 is in the no-wind feeling region omega_xAnd thus the above position achieves a non-wind effect.

The target object can be an individual user; in step S3, the air conditioner 100 may control the rotation speed of at least one of the first fan 21 and the second fan 22 and the rotation speed of the second fan assembly 3 to switch the no-wind-sensation level, that is, the air conditioner 100 may control the rotation speed of the first fan 21 and the rotation speed of the second fan assembly 3 to switch the no-wind-sensation level, or may control the rotation speed of the second fan 22 and the rotation speed of the second fan assembly 3 to switch the no-wind-sensation level, or may control the rotation speed of the first fan 21, the rotation speed of the second fan 22 and the rotation speed of the second fan assembly 3 to switch the no-wind-sensation level; it is understood that when the air conditioner 100 is in the no-wind mode, the air conditioner 100 may cool as well as heat.

The first fan assembly 2 is a counter-rotating fan, and the first fan 21 and the second fan 22 can be formed into a set of counter-rotating fans, that is, the rotating direction of the first fan 21 when blowing the air flow towards the predetermined direction is opposite to the rotating direction of the second fan 22 when blowing the air flow towards the predetermined direction, so that the structure of the air conditioner 100 is compact, different air supply effects can be realized by controlling the first fan 21 and the second fan 22, and the air supply effect of the air conditioner 100 is further enriched.

According to the control method of the air conditioner 100 provided by the embodiment of the invention, the air conditioner 100 has abundant air supply effects, can realize the non-wind-sensation effect at different distances, and ensures the uniformity of the non-wind-sensation effect in the vertical direction; meanwhile, the air conditioner 100 can automatically adapt to the corresponding no-wind-sensation grade according to the closest distance between the target object and the casing 1, so that the no-wind-sensation grade of the air conditioner 100 is automatically adapted to the no-wind-sensation requirement of a user, manual adjustment or remote controller adjustment is not needed, the intelligent degree of the air conditioner 100 is improved, the no-wind-sensation function of the air conditioner 100 is improved, the far-near no-wind-sensation function of the air conditioner 100 is more intelligent, the operation of the user is facilitated, and the experience effect of the user is improved; moreover, when there are a plurality of target objects, the air conditioner 100 can simultaneously ensure the comfort of the plurality of target objects, avoid the strong feeling of blowing felt by at least one of the target objects, and ensure that the air conditioner 100 has good applicability.

It can be understood that, when a plurality of target objects are detected in the front side area of the housing 1, the specific implementation process of obtaining the closest distance between the target object and the housing 1 may be specifically set according to the actual application; for example, the distance between each target object and the housing 1 may be obtained first, and then the distances are compared to obtain the closest distance; but is not limited thereto.

In some optional embodiments of the present invention, the camera 8 is used to determine whether there is a target object and to obtain the closest distance between the target object and the housing 1. For example, as shown in fig. 4 and 5, the camera 8 may be provided on the cabinet 1, and the camera 8 may be positioned at a front side of the air conditioner 100 and the camera 8 may be positioned at an upper portion of the cabinet 1, and when the air conditioner 100 is in the no-wind mode, the camera 8 may detect whether there is a target object in a front area of the cabinet 1; when a target object is detected in the front side area of the housing 1, the closest distance between the target object and the housing 1 can be acquired. It is understood that the camera 8 may also detect the number of target objects in the front area of the housing 1, specifically, when it is detected that there is one target object in the front area of the housing 1, the distance between the target object and the housing 1 is acquired, and when it is detected that there are a plurality of target objects in the front area of the housing 1, the distance between the target object closest to the housing 1 and the housing 1 is acquired. Of course, the camera 8 may be provided in other components of the air conditioner 100, and the specific position of the camera 8 is not limited thereto.

Of course, other devices may be used to determine whether there is a target object and obtain the closest distance between the target object and the housing 1, such as an ultrasonic detection device, an infrared detection device, and the like.

In some embodiments of the present invention, the plurality of no-wind levels includes a first gear to an nth gear, and the no-wind distance gradually increases from the first gear to the nth gear, that is, the no-wind distance of the first gear < the no-wind distance of the second gear < the no-wind distance of the third gear < … < the no-wind distance of the nth gear. Therefore, the control logic of the no-wind-sensation grade can be simpler and clearer, and the actual use of a user is facilitated. For example, the x non-wind-feeling levels may include a first gear to an nth gear, x may be equal to N, and each non-wind-feeling level corresponds to a gear, and the non-wind-feeling distance L is₁、L₂、…、L_xCan respectively correspond to a first gear to an Nth gear, the non-wind-sensing distance is gradually increased, and L₁＜L₂＜…＜L_xThen the process is completed. Wherein, N may be a natural number greater than 1, for example, N may be 2, or 5, or 6, etc.

It is to be understood that the plurality of no-wind level may be set in a manner not limited thereto, and for example, the no-wind distance may be gradually decreased from the first gear to the nth gear.

Specifically, in the N gears, the rotation speed of the second fan assembly 3 is kept unchanged. That is, the output rotation speed of the second fan assembly 3 is kept unchanged in different no-wind-sensation levels, that is, the second fan assembly 3 keeps the same rotation speed in N gears, and the gears can be switched by adjusting the rotation speed of the first fan 21 and/or the second fan 22, so that the no-wind-sensation levels can be switched. Therefore, the control method of the air conditioner 100 can be simplified, and the control logic of the air conditioner 100 can be further simplified, so as to improve the control efficiency of the air conditioner 100.

In some embodiments of the present invention, the second fan 22 is located downstream of the first fan 21 in the air flow direction, and the first fan 21 is controlled to stop rotating in each of the no-wind-feeling levels from the first gear to the mth gear (M < N), wherein the higher the gear is, the higher the rotation speed of the second fan 22 is, of the M gears from the first gear to the mth gear. For example, as shown in fig. 5 and 7, when the air conditioner 100 is in the no-wind mode, if the no-wind level of the air conditioner 100 is between the first gear and the M-th gear, the first fan 21 does not output the rotation speed, that is, the rotation speed of the first fan 21 is 0 in each gear from the first gear to the M-th gear. If the no-wind-sensation grade needs to be adjusted between the first gear and the Mth gear, the rotating speed of the second fan 22 and/or the second fan assembly 3 can be adjusted, and the rotating speed of the first fan 21 does not need to be adjusted to realize the switching of the no-wind-sensation grade between the first gear and the Mth gear; wherein M may be a natural number greater than 0; when M is equal to 1, then first fan 21 stall in the first gear, and second fan 22 rotates, when M is more than or equal to 2, then first fan 21 stall in a plurality of gears of first gear to M shelves, and the rotational speed of second fan 22 increases along with the promotion of gear, and the air supply distance of having guaranteed the high gear is far away to the no wind sense grade of having guaranteed the high gear can realize great no wind sense distance.

Note that "high gear" is a relative concept. The "blowing distance" is understood to mean the farthest distance between the no-wind zone and the cabinet 1.

For example, when N is 8 and M is 4, that is, the plurality of no-wind-sensation levels may include a first gear to an eighth gear, and if the no-wind-sensation level of the air conditioner 100100 is between the first gear and the fourth gear, the first fan 21 does not output the rotation speed. When the air conditioner 100 is adjusted between the first gear to the fourth gear, it is possible to adjust only the output rotation speed of the second fan 22 without adjusting the output rotation speed of the first fan 21. Among the four gears from the first gear to the fourth gear, the higher the gear without wind sensation is, the higher the rotation speed of the second fan 22 is. Thus, the control mode of the air conditioner 100 can be simplified and the design cost of the air conditioner 100 can be reduced by the above arrangement. Of course, the value of M, N is not limited thereto.

Further, in each gear from the M +1 th gear to the N th gear (M +1 < N), the first fan 21 is controlled to rotate, that is, in each gear from the M +1 th gear to the N th gear, the output rotation speed of the first fan 21 is not 0, that is, in each gear from the M +1 th gear to the N th gear, the first fan 21 and the second fan 22 may both rotate to further secure the blowing distance of the high gear, so that the high gear may realize a large non-wind feeling distance. In each of the gears from the M +1 th gear to the N th gear, the first fan 21 may be kept at a fixed output rotation speed, and the first fan 21 may also be rotated at a variable speed.

Alternatively, in each of the gears from the M +1 th gear to the N-th gear, the rotation speed of the second fan 22 is greater than the rotation speed of the first fan 21. It can be understood that, since in each of the gears from the M +1 th gear to the N th gear, the first fan 21 and the second fan 22 rotate simultaneously and both blow air toward the first air outlet 11 a. As shown in fig. 5 and 7, the second fan 22 may be located at the downstream side of the first fan 21, and by setting the rotation speed of the second fan 22 to be greater than the rotation speed of the first fan 21, the second fan 22 may apply a driving force to the first fan 21, so that the wind loss of the first fan assembly 2 may be reduced, and the air supply effect of the first fan assembly 2 may be improved. Of course, the output rotation speeds of the first fan 21 and the second fan 22 may be the same in each gear from the M +1 th gear to the N-th gear.

In some embodiments of the present invention, the higher the gear is, the higher the rotation speed of the second fan 22 is, among the plurality of gears from the M +1 th gear to the N th gear. Therefore, with the improvement of the no-wind-sensation level, the second fan 22 can realize a longer air supply distance by improving the output rotating speed and matching with the first fan 21, and a larger no-wind-sensation distance is ensured. For example, as shown in fig. 4 and 7, the first fan assembly 2 is located above the second fan assembly 3, and in a plurality of gears from the M +1 th gear to the N th gear, the air flow distance of the first fan assembly 2 may be greater than the air flow distance of the second fan assembly 3, and the air flow located above may slowly circulate from top to bottom in the indoor space, thereby making the indoor temperature distribution more uniform. Moreover, the air flow below can slowly circulate from bottom to top and can be mixed with the air flow above, so that the effect of mixed flow can be achieved, the indoor temperature distribution can be more uniform, and the refrigeration and heating effects of the air conditioner 100 can be improved.

In some optional embodiments of the present invention, the difference between the non-wind-sensing distances of two adjacent gears is not more than 1m, so that the non-wind-sensing distances of multiple non-wind-sensing levels are reasonably designed, the correspondingly divided non-wind-sensing areas are more reasonable, it is ensured that the positions in the non-wind-sensing areas can all realize the non-wind-sensing, and the positions between two adjacent non-wind-sensing areas where the non-wind-sensing effect cannot be realized are avoided, so that the range of the non-wind-sensing of the air conditioner 100 can be effectively expanded, the non-wind-sensing effect of the air conditioner 100 is effectively improved, and the applicability of the air conditioner 100 is ensured. It can be understood that if the non-wind distance between two adjacent gears is large, the non-wind area is difficult to cover the whole indoor space, thereby affecting the use comfort of the user. Therefore, the difference value of the non-wind-sensing distance of two adjacent gears is set to be not more than 1m, different gears can be conveniently selected, so that a plurality of non-wind-sensing top-level non-wind-sensing areas cover each position of the indoor space, and the use requirements of users are met. The difference of the non-wind distance between two adjacent gears can be 0.3m, 0.5m, 0.8m, and the like.

For example, the non-wind-feeling level may be set to six, the six non-wind-feeling levels may include a first gear to a sixth gear, the non-wind-feeling distance of the first gear may range from 0m to 1m, the non-wind-feeling distance of the second gear may range from 1m to 2m, the non-wind-feeling distance of the third gear may range from 2m to 2.5m, the non-wind-feeling distance of the fourth gear may range from 2.5m to 3m, the non-wind-feeling distance of the fifth gear may range from 3m to 4m, and the non-wind-feeling distance of the sixth gear may be 4m or more. The critical value between the non-wind-sensing distance ranges of two adjacent gears can be set in one of the two adjacent gears, for example, 1m can be designed as the non-wind-sensing distance of the first gear, and can also be designed as the non-wind-sensing distance of the second gear. Further, in a specific example, the non-wind-sensing distance of the first gear is 0.5m, the non-wind-sensing distance of the second gear is 1.5m, the non-wind-sensing distance of the third gear is 2.5m, the non-wind-sensing distance of the fourth gear is 3m, the non-wind-sensing distance of the fifth gear is 3.5m, and the non-wind-sensing distance of the sixth gear is 4.5m, but is not limited thereto.

In some embodiments of the present invention, as shown in fig. 9 and 10, when the air conditioner 100 is switched to the corresponding no-wind level, the operating frequency of the compressor is reduced to the set frequency. It is understood that the operating frequency of the compressor may be different when the air conditioner 100 is in the normal blowing mode and the no-wind mode. Because the air supply speed in the no-wind-sensation mode is relatively slow, the required operation frequency of the compressor is relatively low, and the compressor needs to be operated in a frequency limiting mode at the moment. The energy consumption of the air conditioner 100 can be reduced by reducing the operating frequency of the compressor, and the lifespan of the compressor can also be extended. For example, the set frequency may be 35Hz, that is, when the air conditioner 100 is controlled to switch to the no-wind mode, the operating frequency of the compressor may be reduced to 35 Hz; of course, the setting frequency may be set to other values without being limited thereto.

It can be understood that each non-wind-sensation level can correspond to a set frequency of a compressor, and the set frequencies corresponding to a plurality of non-wind-sensation levels can be specifically set according to actual requirements.

Further, as shown in fig. 10, after the operating frequency of the compressor is the set frequency, the indoor ambient temperature is detected, and the indoor ambient temperature and the set temperature are compared to obtain a temperature difference, when the temperature difference is greater than the set value, the operating frequency of the compressor is increased, and when the temperature difference is less than the set value, the operating frequency of the compressor is decreased. Therefore, the refrigeration and heating efficiency of the air conditioner 100 can be ensured, the overlarge difference between the ambient temperature and the set temperature is avoided, the comfort level of a user is improved, and the energy consumption of the air conditioner 100 can be reduced. Wherein, the specific value of the set value can be specifically set according to the practical application; the set temperature may be a set temperature corresponding to a current no-wind level of the air conditioner 100.

In some embodiments of the present invention, the first switch door 4 that slides up and down to open or close the first air outlet 11a is disposed on the casing 1, so that the operation is convenient, the smooth air outlet of the first air outlet 11a is ensured, and the aesthetic appearance of the air conditioner 100 is also ensured. For example, the air conditioner 100 may further include a first driving mechanism 7, and the first driving mechanism 7 includes a driving member, a transmission gear 71, and a rack gear 72. Wherein, the driving member is connected with the transmission gear 71 to drive the transmission gear 71 to rotate, the rack 72 is meshed with the transmission gear 71, and the rack 72 is connected with the first opening and closing door 4. Therefore, the driving member can drive the transmission gear 71 to drive the rack 72 to move, and then can drive the first opening/closing door 4 to move up and down to open or close the first air outlet 11 a. It should be noted that the driving manner of the first opening/closing door 4 is not limited to this, and the arrangement may be selected according to the actual use requirement, and the present invention is not limited to this.

In some embodiments of the present invention, the second switch door 5 is disposed on the casing 1 and moves back and forth to open or close the second air outlet 11b, so that the operation is simple, the smooth air outlet of the second air outlet 11b is ensured, the appearance of the air conditioner 100 is ensured, and the technological sense of the product is improved. For example, the air conditioner 100 may further include a second driving mechanism, the second driving mechanism may be a hydraulic cylinder, the second driving mechanism may be disposed in the casing 1, a free end of the second driving mechanism may be connected to the second opening/closing door 5, and the free end of the second driving mechanism may drive the second opening/closing door 5 to move back and forth to open or close the second air outlet 11 b. The driving method of the second opening/closing door 5 is not limited to this. For example, the second drive mechanism may also be a rack and pinion mechanism.

When the air conditioner 100 starts to operate and the no-wind mode is selected, the control method of the air conditioner 100 may further include: after the air conditioner 100 is controlled to switch to the no-wind mode, the first switch door 4 may be controlled to open the first outlet 11a, and the second switch door 5 may be controlled to open the second outlet 11 b. After the air conditioner 100 is used, the first opening/closing door 4 may be controlled to close the first outlet 11a, and the second opening/closing door 5 may be controlled to close the second outlet 11 b. Therefore, through the arrangement, the sealing effect of the air conditioner 100 can be improved, and the influence of dust in the air on the normal operation of the air conditioner 100 due to the fact that the dust enters the air conditioner 100 can be prevented.

In some embodiments of the present invention, the plurality of no-wind levels may include first gear to sixth gear. When the non-wind sensation level is in the first gear, the first fan 21 can be controlled not to output the rotating speed, the second fan 22 can be controlled to output the rotating speed between 250rpm and 350rpm, and the second fan assembly 3 can be controlled to output the rotating speed between 150rpm and 250 rpm; when the non-wind sensation level is in the second gear, the first fan 21 can be controlled not to output the rotating speed, the second fan 22 can be controlled to output the rotating speed between 450rpm and 550rpm, and the second fan assembly 3 can be controlled to output the rotating speed between 150rpm and 250 rpm; when the non-wind sensation level is in the third gear, the first fan 21 can be controlled not to output the rotating speed, the second fan 22 can be controlled to output the rotating speed between 550rpm and 650rpm, and the second fan assembly 3 can be controlled to output the rotating speed between 150rpm and 250 rpm; when the non-wind sensation level is in the fourth gear, the output rotation speed of the first fan 21 can be controlled to be between 120rpm and 220rpm, the output rotation speed of the second fan 22 can be controlled to be between 250rpm and 350rpm, and the output rotation speed of the second fan assembly 3 can be controlled to be between 150rpm and 250 rpm; when the non-wind sensation level is in the fifth gear, the output rotation speed of the first fan 21 can be controlled to be between 150rpm and 250rpm, the output rotation speed of the second fan 22 can be controlled to be between 500rpm and 600rpm, and the output rotation speed of the second fan assembly 3 can be controlled to be between 150rpm and 250 rpm; when the no-wind-sensation level is in the sixth gear, the output rotation speed of the first fan 21 can be controlled to be between 150rpm and 250rpm, the output rotation speed of the second fan 22 can be controlled to be between 650rpm and 750rpm, and the output rotation speed of the second fan assembly 3 can be controlled to be between 150rpm and 250 rpm. Therefore, through the above arrangement, not only can the control logic of the no-wind-sensation mode be simpler, but also the no-wind-sensation effect of the air conditioner 100 can be improved.

Considering the situation of filth blockage of the filter screen, the output rotating speed can be properly increased within the output rotating speed range to keep the air volume of the air conditioner 100; of course, when the outlet air temperature is too low, the output rotating speed can be properly reduced within the output rotating speed range. It will be appreciated that when the second fan assembly 3 includes a third fan 31, the output speed of the third fan 31 may be the output speed of the second fan assembly 3.

Other configurations and operations of the air conditioner 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

A control method of the air conditioner 100 according to the present invention is described in detail in three specific embodiments with reference to the accompanying drawings. It is to be understood that the following description is only exemplary, and not restrictive of the invention.

Example one

In the present embodiment, as shown in fig. 4, 5 and 7, an air conditioner 100 according to an embodiment of the present invention includes a cabinet 1, a first fan assembly 2, a second fan assembly 3, a heat exchanger part 6 and a camera 8. Wherein, first fan subassembly 2, second fan subassembly 3, heat exchanger part 6 and camera 8 all establish in casing 1. The cabinet 1 may include a panel member 11, the panel member 11 is disposed on a front panel member 11 of the air conditioner 100, and is provided with a first air outlet 11a and a second air outlet 11b which are distributed at intervals in an up-down direction, the first air outlet 11a is disposed above the second air outlet 11b, and the camera 8 is disposed above the first air outlet 11 a.

Be equipped with mounting panel 12 in casing 1, first fan subassembly 2 and second fan subassembly 3 all establish on mounting panel 12 and interval distribution on the upper and lower direction, and first fan subassembly 2 is to the air supply of first air outlet 11a, and just first fan subassembly 2 and first air outlet 11a can be followed the fore-and-aft direction and just to setting up, and second fan subassembly 3 is to the air supply of second air outlet 11b, and just setting up can be followed to second fan subassembly 3 and second air outlet 11 b. The first fan assembly 2 includes a first fan 21 and a second fan 22 arranged in the front-rear direction, the first fan 21 and the second fan 22 form a group of selective fans, and the second fan 22 is located on the downstream side of the first fan 21 and is opposite to the first air outlet 11 a. The second fan assembly 3 includes a third fan 31 located below the first fan assembly 2, the third fan 31 is opposite to the second air outlet 11b, and the third fan 31 is an axial flow fan. Wherein, heat exchanger part 6 is one, and this heat exchanger part 6 is relative with first fan subassembly 2, second fan subassembly 3 simultaneously, that is to say, and some flow direction first fan subassembly 2, still some flow direction second fan subassembly 3 of air current through heat exchanger part 6, then when heat exchanger part 6 was regarded as the evaporimeter, second fan subassembly 3 can avoid heat exchanger part 6 lower part temperature to hang down excessively.

The casing 1 is provided with a first switch door 4, the first switch door 4 is in sliding fit with the panel part 11 and can slide up and down relative to the panel part 11 to open or close the first air outlet 11a, and the second switch door 5 can move back and forth relative to the casing 1 to open or close the second switch door 5 of the second air outlet 11 b.

As shown in fig. 8, the control method of the air conditioner 100 according to the embodiment of the present invention includes: s1: when the air conditioner 100 is in the no-wind mode, the camera 8 may be automatically activated to detect whether there is a target object in the front region of the cabinet 1; s2: if yes, the camera 8 obtains the closest distance between the target object and the shell 1, and compares the closest distance with a plurality of non-wind-sensing distances; s3: according to the comparison result, the air conditioner 100 is switched to the corresponding no-wind level such that the target object is located within the corresponding no-wind region.

Specifically, the number of the non-wind-sensation levels may be x (x may be a natural number greater than 1), and then the x non-wind-sensation levels correspond to x non-wind-sensation regions, each non-wind-sensation region corresponds to a non-wind-sensation distance, and then the non-wind-sensation distances corresponding to the x non-wind-sensation levels may be respectively recorded as L₁、L₂、…、L_xAnd x non-wind-sensitive areas can be respectively marked as omega₁、Ω₂、…、Ω_x，L₁Is region omega₁Closest distance to the housing 1, L₂Is region omega₂Closest distance to the cabinet 1, …, L_xIs region omega_xThe closest distance to the housing 1.

The air conditioner 100 is operated, the first air outlet 11a can be opened by the first switch door 4, the second air outlet 11b can be opened by the second switch door 5, when the air conditioner 100 is in a no-wind mode, whether a target object exists in the front area of the machine shell 1 or not is detected, if yes, the nearest distance L' between the target object and the machine shell 1 is obtained,considering that the error exists, comparing the value with the error epsilon and a plurality of non-wind-sensing distances L₁、L₂、…、L_xComparing; if L is₁≤L’±ε＜L₂Then the air conditioner 100 is switched to the non-wind sensing distance L₁Corresponding no-wind feeling level, so that the position with the nearest distance L from the shell 1 is in the no-wind feeling region omega₁In to above-mentioned position realizes no wind sense effect, promotes the travelling comfort, if L₂≤L’±ε＜L₃Then the air conditioner 100 is switched to the non-wind sensing distance L₂Corresponding no-wind feeling level, so that the position with the nearest distance L' from the casing 1 is in the no-wind feeling region omega₂In the interior, the above-mentioned position can implement non-wind-sensing effect, and so on, if L' +/-epsilon is greater than or equal to L_xThen the air conditioner 100 is switched to the non-wind sensing distance L_xCorresponding no-wind feeling level, so that the position with the nearest distance L' from the casing 1 is in the no-wind feeling region omega_xAnd thus the above position achieves a non-wind effect. When the precision of obtaining the closest distance L between the target object and the casing 1 is high, the error epsilon can be 0; when the accuracy of obtaining the closest distance L' between the target object and the cabinet 1 is low, the error epsilon may be specifically set according to the actual application, and the cost of the air conditioner 100 is low at this time. The target object is a user individual.

Specifically, the no-wind level may be set to six, the six no-wind levels may include a first gear (1%), a second gear (20%), a third gear (40%), a fourth gear (60%), a fifth gear (80%), and a sixth gear (100%), the no-wind distance of the first gear is 0.5m, the no-wind distance of the second gear is 1.5m, the no-wind distance of the third gear is 2.5m, the no-wind distance of the fourth gear is 3m, the no-wind distance of the fifth gear is 3.5m, the no-wind distance of the sixth gear is 4.5m, the no-wind region of the first gear is a region between 0.5m and 1.5m from the casing 1 (including 0.5m and not 1.5m), the no-wind region of the second gear is a region between 1.5m and 2.5m from the casing 1 (including 1.5m and not including 2.5m from the casing 1), and the no-wind region of the second gear is a region between 1.5m and 2.5m from the casing 1 (including 3.5m and not including 2m from the casing 1.5m), the third gear is a region between 3m and 3.5m away from the cabinet 1 (including 3m and not including 3.5m), the fifth gear is a region between 3.5m and 4.5m away from the cabinet 1 (including 3.5m and not including 4.5m), the sixth gear is a region between 4.5m or more away from the cabinet 1, considering a detection error epsilon of the camera 8 (e.g., epsilon is 0.5m), the air conditioner 100 is switched to the first gear when a closest distance L 'between the acquisition target object and the cabinet 1 is in a range of 0m to 1m (not including 1m), so that the target object closest to the cabinet 1 is in the third gear, and the air conditioner 100 is switched to the second gear when the closest distance L' between the acquisition target object and the cabinet 1 is in a range of 1m to 2m (including 1m and not including 2m), a target object closest to the cabinet 1 is located in the non-wind-sensitive area corresponding to the first gear, when the closest distance L ' between the acquired target object and the cabinet 1 is within a range of 2m to 2.5m (including 2m and not including 2.5m), the air conditioner 100 is switched to the third gear so that the target object closest to the cabinet 1 is located in the non-wind-sensitive area corresponding to the first gear, when the closest distance L ' between the acquired target object and the cabinet 1 is within a range of 2.5m to 3m (including 2.5m and not including 3m), the air conditioner 100 is switched to the fourth gear so that the target object closest to the cabinet 1 is located in the non-wind-sensitive area corresponding to the first gear, when the closest distance L ' between the acquired target object and the cabinet 1 is within a range of 3m to 4m (including 3m and not including 4m), the air conditioner 100 is switched to the fifth gear so that the target object closest to the cabinet 1 is located in the non-wind-sensitive area corresponding to the first gear, when the closest distance L' between the acquired target object and the cabinet 1 is 4m or more than 4m, the air conditioner 100 switches to the sixth gear so that the target object closest to the cabinet 1 is located in the non-wind-sensing area corresponding to the sixth gear.

When the air conditioner 100 is switched to the first gear, the air conditioner 100 controls the first fan 21 not to output the rotation speed, controls the second fan 22 to output the rotation speed of 300rpm, and controls the third fan 31 to output the rotation speed of 200 rpm; when the air conditioner 100 is switched to the second gear, the air conditioner 100 controls the first fan 21 to not output the rotation speed, controls the second fan 22 to output the rotation speed of 500rpm, and controls the third fan 31 to output the rotation speed of 200 rpm; when the air conditioner 100 is switched to the third gear, the air conditioner 100 controls the first fan 21 to not output the rotation speed, controls the second fan 22 to output the rotation speed of 600rpm, and controls the third fan 31 to output the rotation speed of 200 rpm; when the air conditioner 100 is switched to the fourth gear, the air conditioner 100 controls the output rotation speed of the first fan 21 to be 170rpm, the output rotation speed of the second fan 22 to be 300rpm, and the output rotation speed of the third fan 31 to be 200 rpm; when the air conditioner 100 is switched to the fifth gear, the air conditioner 100 controls the output rotation speed of the first fan 21 to be 200rpm, the output rotation speed of the second fan 22 to be 550rpm, and the output rotation speed of the third fan 31 to be 200 rpm; when the air conditioner 100 is switched to the sixth gear, the air conditioner 100 may control the output rotation speed of the first fan 21 to be 200rpm, the output rotation speed of the second fan 22 to be 700rpm, and the output rotation speed of the third fan 31 to be 200 rpm.

The first fan assembly 2 supplies air, the upper part of the position of the target object can have a non-wind-sensing effect, the second fan assembly 3 supplies air, and the lower part of the position of the target object can have the non-wind-sensing effect, so that the comfort of a user is ensured; the wind of the first air outlet 11a can expand downwards, and the wind of the second air outlet 11b can expand upwards, so that the uniformity of the no-wind effect is ensured.

Example two

As shown in fig. 9, the present embodiment has the same structure as the first embodiment, wherein the same reference numerals are used for the same components, and the difference is that the control method of the air conditioner 100 is different.

Specifically, the control method of the air conditioner 100 in the present embodiment includes not only the control method of the air conditioner 100 in the first embodiment, but also: when the air conditioner 100 switches the corresponding no-wind level, the operating frequency of the compressor is reduced to the set frequency.

EXAMPLE III

As shown in fig. 10, the present embodiment has the same structure as the second embodiment, wherein the same reference numerals are used for the same components, and the difference is that the control method of the air conditioner 100 is different.

Specifically, the control method of the air conditioner 100 in the present embodiment includes not only the control method of the air conditioner in the second embodiment, but also: after the operating frequency of the compressor is reduced to the set frequency, the air conditioner 100 detects the indoor ambient temperature, and compares the indoor ambient temperature with the set temperature corresponding to the current no-wind level of the air conditioner 100 to obtain a temperature difference; when the temperature difference is larger than the set value, the operation frequency of the compressor is increased, and when the temperature difference is smaller than the set value, the operation frequency of the compressor is reduced.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A control method of an air conditioner is characterized in that the air conditioner comprises a machine shell and a first fan assembly, a first air outlet is formed in the machine shell, the first fan assembly is a counter-rotating fan, the first fan assembly comprises a first fan and a second fan which are arranged along the air flowing direction, in the air flowing direction, the second fan is located at the downstream of the first fan, the first fan assembly blows air towards the first air outlet, the air conditioner has a no-wind feeling mode, in the no-wind feeling mode, a cool feeling area of the air conditioner along the air flowing direction comprises a wind feeling area and a no-wind feeling area, the distance between the boundary of the wind feeling area and the no-wind feeling area and the air conditioner is a no-wind feeling distance, in the no-wind feeling area, the average value of the air flowing speed is not higher than 0.3m/s, and the DR value of the blowing feeling index is not more than 5%, the non-wind feeling mode comprises a plurality of non-wind feeling grades, the non-wind feeling distances corresponding to the non-wind feeling grades are different, the non-wind feeling grades comprise a first gear to an Nth gear, and the non-wind feeling distances are gradually increased from the first gear to the Nth gear;

the control method comprises the following steps:

s1: detecting whether a target object exists in a front area of the air conditioner when the air conditioner is in the no-wind mode;

s2: if so, acquiring the closest distance between the target object and the air conditioner, and comparing the closest distance with a plurality of non-wind-sensing distances;

s3: according to the comparison result, the air conditioner is switched to the corresponding no-wind-sensation level so that the target object is located in the corresponding no-wind-sensation area, and when the air conditioner is switched to the corresponding no-wind-sensation level, the operation frequency of a compressor of the air conditioner is reduced to a set frequency;

s4: after the running frequency of the compressor is a set frequency;

detecting the indoor environment temperature, comparing the indoor environment temperature with a set temperature to obtain a temperature difference, increasing the running frequency of the compressor when the temperature difference is larger than the set value, and reducing the running frequency of the compressor when the temperature difference is smaller than the set value, wherein the set temperature is the set temperature corresponding to the current no-wind-sense grade of the air conditioner.

2. A control method of an air conditioner is characterized in that the air conditioner comprises a shell, a first fan assembly and a second fan assembly, a first air outlet and a second air outlet are arranged on the shell, the first fan assembly is a counter-rotating fan, the first fan assembly comprises a first fan and a second fan which are arranged along the air flowing direction, in the air flowing direction, the second fan is located at the downstream of the first fan, the first fan assembly supplies air towards the first air outlet, the second fan assembly supplies air towards the second air outlet, the air conditioner has a no-wind-sensation mode, in the no-wind-sensation mode, a cool-sensation area of the air conditioner comprises a wind-sensation area and a no-wind-sensation area along the air flowing direction, the distance between the boundary of the wind-sensation area and the no-wind-sensation area and the air conditioner is a no-wind-sensation distance, in the no-wind feeling area, the average value of the air flow speed is not higher than 0.3m/s, the DR value of the blowing feeling index is not more than 5%, the no-wind feeling mode comprises a plurality of no-wind feeling grades, the no-wind feeling distances corresponding to the no-wind feeling grades are different, the no-wind feeling grades comprise a first grade to an Nth grade, and the no-wind feeling distances are gradually increased from the first grade to the Nth grade;

the control method comprises the following steps:

s1: detecting whether a target object exists in a front area of the shell when the air conditioner is in the no-wind mode;

s2: if so, acquiring the closest distance between the target object and the shell, and comparing the closest distance with a plurality of non-wind-sensing distances;

s3: according to the comparison result, the air conditioner is switched to the corresponding no-wind-sensation level so that the target object is located in the corresponding no-wind-sensation area, and when the air conditioner is switched to the corresponding no-wind-sensation level, the running frequency of a compressor is reduced to a set frequency;

s4: after the running frequency of the compressor is the set frequency;

3. The control method of an air conditioner according to claim 2, wherein a camera is used to determine whether there is a target object and to obtain a closest distance between the target object and the cabinet.

4. The control method of an air conditioner according to claim 2, wherein the rotation speed of the second fan assembly is maintained constant in N stages.

5. The control method of an air conditioner according to claim 2, wherein the first fan is controlled to stop rotating in each no-wind-sensation level from a first gear to an M-th gear, wherein M < N, the higher the gear is, the higher the rotation speed of the second fan is, among M gears from the first gear to the M-th gear.

6. The control method of an air conditioner according to claim 5, wherein the first fan is controlled to rotate in each gear from the M +1 th gear to the N th gear.

7. The control method of an air conditioner according to claim 6, wherein the rotation speed of the second fan is greater than the rotation speed of the first fan in each gear from the M +1 th gear to the N th gear.

8. The control method of an air conditioner according to claim 6, wherein the higher the gear is, the higher the rotation speed of the second fan is, among a plurality of gears from the M +1 th gear to the N th gear.

9. The method as claimed in claim 2, wherein a first opening and closing door is provided on the casing to slide up and down to open or close the first outlet.

10. The method as claimed in claim 2, wherein a second opening and closing door is provided on the cabinet to move forward and backward to open or close the second outlet.