CN107255307B - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN107255307B
CN107255307B CN201710374965.0A CN201710374965A CN107255307B CN 107255307 B CN107255307 B CN 107255307B CN 201710374965 A CN201710374965 A CN 201710374965A CN 107255307 B CN107255307 B CN 107255307B
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China
Prior art keywords
air supply
air
human
heating
fan
Prior art date
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Application number
CN201710374965.0A
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Chinese (zh)
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CN107255307A (en
Inventor
刘卫兵
吴洪金
耿宝寒
朱辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Air Conditioner Gen Corp Ltd
Haier Zhijia Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
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Priority to CN201710374965.0A priority Critical patent/CN107255307B/en
Publication of CN107255307A publication Critical patent/CN107255307A/en
Application granted granted Critical
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0033Indoor units, e.g. fan coil units characterised by fans having two or more fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0011Indoor units, e.g. fan coil units characterised by air outlets
    • F24F1/0014Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0018Indoor units, e.g. fan coil units characterised by fans
    • F24F1/0025Cross-flow or tangential fans
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention provides an air conditioner, which comprises a shell; the human body detection device is configured to detect indoor human body information comprising human body surface temperature and human body position; the control device is configured to receive the human body information, determine that the air supply needs a human body, and the surface temperature of the human body is Ta; if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper fan and the lower fan are enabled to operate at the highest rotating speed; if Ta is in a refrigerating comfortable temperature area under the refrigerating mode or in a heating comfortable temperature area under the heating mode, the upper fan is enabled to run at the highest rotating speed, and the rotating speed of the lower fan is lower than the highest rotating speed; and if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the rotating speeds of the upper fan and the lower fan are both lower than the highest rotating speed.

Description

Air conditioner
Technical Field
The invention relates to the technical field of refrigeration, in particular to an air conditioner.
Background
At present, the existing air conditioner has a fixed mode of supplying air to the indoor, or the existing air conditioner can directionally blow air towards a certain direction, or automatically control an air deflector or a swinging blade to circularly sweep air, or make the air avoid the human body according to a human body sensing sensor, so that discomfort caused by directly blowing the human body is avoided. In a word, the air supply mode of the existing air conditioner is single and lacks innovation.
Disclosure of Invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and to provide an air conditioner with a novel air supply method.
The invention further aims to improve the intellectualization of air supply of the air conditioner, realize air supply and soft air supply according to requirements and enhance the comfort of users.
In particular, the present invention provides an air conditioner, comprising:
a housing;
the upper fan and the lower fan are vertically arranged in the shell and used for supplying air to the indoor space;
at least one upper air supply outlet used for being matched with the upper fan and at least one lower air supply outlet used for being matched with the lower fan are arranged on the front side of the shell;
a human body detection device configured to detect indoor human body information including a human body surface temperature and a human body position; and
the control device is configured to receive the human body information, determine an air supply requirement human body needing to perform key air supply, and the surface temperature of the control device is Ta;
if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper fan and the lower fan are both operated at the highest rotating speed;
if Ta is in a refrigerating comfortable temperature area under the refrigerating mode or in a heating comfortable temperature area under the heating mode, the upper fan is enabled to run at the highest rotating speed, and the rotating speed of the lower fan is enabled to be lower than the highest rotating speed;
and if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the rotating speeds of the upper fan and the lower fan are both lower than the highest rotating speed.
Optionally, the control device is further configured to: if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper air supply outlet and the lower air supply outlet both supply air towards an indoor local area where the human body is located and the air supply demand is met; if Ta is in a refrigerating comfortable temperature zone in the refrigerating mode or in a heating comfortable temperature zone in the heating mode, the upper air supply outlet and the lower air supply outlet are used for sweeping air, and the air supply directions of the upper air supply outlet and the lower air supply outlet are kept different; and if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the lower air supply outlet supplies air upwards to be mixed with the air outlet of the upper air supply outlet.
Optionally, the control device is further configured to: if Ta is higher than the preset refrigerating comfortable temperature area in the refrigerating mode or lower than the preset heating comfortable temperature area in the heating mode, the upper air supply outlet and the lower air supply outlet are enabled to supply air in a directional mode towards the indoor local area where the human body is located according to air supply requirements.
Optionally, the control device is further configured to: if Ta is in the cooling comfortable temperature area under the cooling mode or in the heating comfortable temperature area under the heating mode, the upper air supply outlet and the lower air supply outlet can carry out maximum air sweeping.
Optionally, if Ta is lower than the cooling comfortable temperature zone in the cooling mode or higher than the heating comfortable temperature zone in the heating mode, the lower air supply outlet is directed upwards to supply air, and the upper air supply outlet performs maximum air sweeping.
Alternatively, the upper and lower air supply ports are each mounted with a plurality of horizontally extending yaw blades and a plurality of vertically extending vertical swing blades for guiding the air supply direction.
Optionally, the human detection device is further configured to detect a number of persons in the room; the control device is further configured to: if one person exists in the room, the person is taken as the air supply demand person; if a plurality of people exist in the room, the human body with the highest surface temperature is taken as the air supply requirement human body in the cooling mode, and the human body with the lowest surface temperature in the heating mode is taken as the air supply requirement human body.
Optionally, the refrigeration comfort temperature zone is 18 to 22 ℃; the heating comfortable temperature zone is 22-26 ℃.
Optionally, the number of the upper air supply outlets is two, and the number of the lower air supply outlets is one; and the two upper air supply outlets and the lower air supply outlet are arranged along a vertical straight line.
Optionally, the upper fan and the lower fan are both cross-flow fans with axes extending vertically.
The air conditioner determines the human body which needs to be supplied most as the human body with the air supply requirement according to the surface temperature of the human body, adjusts the rotating speeds of the two fans according to the relationship between the temperature of the human body with the air supply requirement and the refrigerating comfortable temperature area (or the heating comfortable temperature area), realizes the intelligent adjustment of the air quantity of the two fans, enables the air quantity to be more matched with the indoor air quantity requirement, and saves the energy consumption of the fans.
Furthermore, the air conditioner adjusts the wind direction of the air supply outlet according to the relationship between the surface temperature of the human body and the refrigerating comfortable temperature area (or the heating comfortable temperature area) required by air supply, realizes intelligent adjustment of the wind direction, and blows the wind to the position near the human body when the refrigerating (or heating) requirement of the human body is high, so as to realize rapid refrigerating (or heating); when the air supply needs that the human body is in a refrigerating comfortable temperature area or a heating comfortable temperature area, namely when the refrigerating (or heating) needs are small, the air supply outlet can normally sweep air, and the whole indoor space is considered; when the air supply needs no refrigeration (or heating) needs of a human body, the lower air supply opening supplies air upwards, the air outlet of the upper air supply opening is flushed to two sides while the human body is kept away, and discomfort caused by direct blowing of the human body is avoided.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic exploded view of an indoor blowing structure of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic view of an indoor blowing structure of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic view of an air supply method of an air conditioner according to an embodiment of the present invention;
FIG. 4 is a flow chart of an air supply method of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flow chart illustrating a heating process according to an air supply method of an air conditioner according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention first provides an air conditioner, and fig. 1 is a schematic exploded view of an indoor air supply structure of an air conditioner according to an embodiment of the present invention; fig. 2 is a schematic view of an indoor blowing structure of an air conditioner according to an embodiment of the present invention. The air conditioner of the embodiment of the invention can be a split floor type air conditioner, which comprises a shell, two fans (comprising an upper fan 410 and a lower fan 420 which are vertically arranged), a plurality of air supply outlets (comprising at least one upper air supply outlet 112, 114 and at least one lower air supply outlet 116), a human body detection device 200 and a control device. The upper fan 410 and the lower fan 420 are arranged in the shell and used for supplying air to the indoor space, and the two fans are independent and do not affect each other. The upper air blowing ports 112 and 114 and the lower air blowing port 116 are provided on the front panel 110 on the front side of the casing, the upper air blowing ports 112 and 114 are adapted to be matched with the upper fan 410 so that the air of the upper fan 410 is blown into the room through the upper air blowing ports 112 and 114, and the lower air blowing port 116 is adapted to be matched with the lower fan 420 so that the air of the lower fan 420 is blown into the room through the lower air blowing port 116. Two fans are located behind the front panel 110, and the air duct assembly 120 is disposed between the fans and the front panel 110 for guiding the wind direction.
The rear side of the shell is provided with an air inlet, the shell is internally provided with an evaporator, and the evaporator forms a vapor compression refrigeration cycle system with a condenser, a compressor and a throttling device of the outdoor unit. Under the drive of the two fans, indoor air enters the shell through the air inlet, is cooled (during refrigeration) or heated (during heating) after exchanging heat with the evaporator, and is blown to the indoor through the air supply outlet, so that refrigeration or heating is realized.
In some embodiments, as shown in FIGS. 1 and 2, the number of upper supply air ports may be two, respectively upper supply air port 112 and upper supply air port 114, and the number of lower supply air ports may be one, respectively lower supply air port 116. Two upper blower ports 112, 114 and one lower blower port 116 are aligned in a vertical line. Thus, the upper fan 410 can have a higher rated power for the two upper air supply ports 112 and 114, and the lower fan 420 can have a lower rated power for the two lower air supply ports 116. As shown in fig. 1 and 2, the air outlet areas of the three air outlets may be the same, and the rated power of the upper fan 410 may be twice that of the lower fan 420. In addition, the upper fan 410 and the lower fan 420 are cross-flow fans with axes extending vertically, so that the motor 411 of the upper fan 410 is positioned at the top of the upper fan 411, and the motor 421 of the lower fan 420 is positioned at the bottom of the lower fan 420. In the embodiment of the invention, the switching of the air supply modes of the three air volume gears can be realized only by controlling the opening and closing of the two fans, and the air volume is from small to sequentially: a mode of turning on only the lower fan 420, a mode of turning on only the upper fan 410, and a mode of turning on both the upper fan 410 and the lower fan 420. And, under these three kinds of amount of wind keep off air supply mode, the rethread changes the wind speed of fan, can acquire more diversified air supply mode to satisfy user's different demands, promote user experience.
In addition, the air supply range of the embodiment of the invention is larger (at least in the up-down direction) compared with the scheme that only one air supply opening is arranged at the top of the front side of the prior art air conditioner. Particularly, in the heating mode, since hot air tends to rise, the prior art is not convenient to supply hot air downwards because only one air supply outlet with a higher position is arranged, so that the heating effect of the indoor bottom space is poor. The embodiment of the invention can utilize the lowest air supply outlet to convey hot air to the bottom space, thereby meeting the heating requirement of the bottom space.
The human body detection device 200 is configured to detect human body information in a room, the human body information including a human body surface temperature and a human body position. The human body detection device 200 may be a laser infrared temperature sensor or other non-contact temperature sensor capable of detecting the number of people and the position of the human body. The human body detecting device 200 may be disposed on the front panel 110.
The control device is electrically connected with the human body detection device 200, is configured to receive human body information, determines a human body needing important air supply according to the human body information, defines the human body needing air supply as a human body needing air supply, and records the surface temperature of the human body needing air supply as Ta.
Specifically, the human body detecting device 200 is configured to detect the number of persons in a room. The control device determines the human body with air supply demand according to the number of people in the room and the surface temperature of each person. Namely: if one person exists in the room, the person is taken as the air supply demand person; if a plurality of people exist in the room, the human body with the highest surface temperature is taken as the air supply requirement human body in the cooling mode, and the human body with the lowest surface temperature in the heating mode is taken as the air supply requirement human body.
The control device defines a cooling comfort temperature zone and a heating comfort temperature zone in advance, for example, the cooling comfort temperature zone is 18 to 22 ℃ (inclusive) and the heating comfort temperature zone is 22 to 26 ℃ (inclusive). The control device adjusts the rotating speeds of the two fans according to the relation between the surface temperature Ta of the human body and the refrigerating comfortable temperature area or the heating comfortable temperature area of the air supply demand. The two fans can be made to have two gear speeds, for example, the high speed can be 950rpm, and the low speed can be 750 rpm. The specific speed regulation mode of the two fans is as follows:
if Ta is higher than the preset cooling comfort temperature region in the cooling mode or lower than the preset heating comfort temperature region in the heating mode, both the upper fan 410 and the lower fan 420 are operated at the highest rotation speed (e.g., 950rpm) to achieve rapid cooling or heating, so that the surface temperature of the human body required by the air supply rapidly reaches the cooling comfort temperature region or the heating comfort temperature region, and the human body is brought into a comfort state more rapidly.
If Ta is in the cooling comfortable temperature area in the cooling mode or in the heating comfortable temperature area in the heating mode, the upper fan 410 is operated at the highest rotation speed, the rotation speed of the lower fan 420 is lower than the highest rotation speed (for example, 750rpm), so that the two fans realize differential operation, the total air volume of the two fans is properly reduced, and the energy consumption of the fans is reduced.
If Ta is lower than the cooling comfort temperature region in the cooling mode or higher than the heating comfort temperature region in the heating mode, the rotation speeds of the upper fan 410 and the lower fan 420 are both lower than the maximum rotation speed (e.g., 750 rpm). Therefore, the human body is in a state of supercooling (a cooling mode) or overheating (a heating mode), so that the human body does not need to be cooled, and only two fans are required to operate at a low speed to maintain the indoor temperature.
In some embodiments, the control device can also intelligently adjust the wind directions of the two fans according to the relationship between the surface temperature Ta of the human body and the refrigerating comfortable temperature area or the heating comfortable temperature area when the air supply demand is large, and blow the wind to the position near the human body when the air supply demand is large, so as to realize rapid refrigeration (or heating); when the air supply needs that the human body is in a refrigerating comfortable temperature area or a heating comfortable temperature area, namely when the refrigerating (or heating) needs are smaller, the air supply outlet can normally sweep air, and the whole indoor space is considered; when the air supply needs no refrigeration (or heating) needs of a human body, the lower air supply opening 116 supplies air upwards, the air outlet of the upper air supply openings 112 and 114 is flushed to two sides while avoiding the human body, and discomfort caused by direct blowing of the human body by the air is avoided.
Specifically, a plurality of horizontally extending yaw vanes 322, 324, 326 and a plurality of vertically extending vertical swing vanes 312, 314, 316 for guiding the blowing direction may be respectively installed at the upper blowing ports 112, 114 and the lower blowing port 116. The plurality of yaw blades 322, 324, 326 are parallel to each other and driven to rotate synchronously by the driving device, so as to realize vertical wind swinging. The plurality of vertical swing blades 312, 314 and 316 are parallel to each other, and are driven to rotate synchronously by the driving device so as to swing wind left and right, the wind direction can be adjusted in a large range by combining the horizontal swing blades and the vertical swing blades, and the driving device of the swing blades can refer to the prior art and is not described herein again. The specific mode of wind direction regulation does:
if Ta is higher than the preset refrigerating comfortable temperature zone in the refrigerating mode or lower than the preset heating comfortable temperature zone in the heating mode, the upper air supply outlets 112 and 114 and the lower air supply outlet 116 all supply air towards the indoor local area where the human body with air supply demand is located, so as to realize rapid refrigeration or heating of the human body with air supply demand. The indoor local area where the air supply demand human body is located may be a circular area having a radius R (R may be 1m) with the air supply demand human body as a center. Preferably, the upper air supply ports 112 and 114 and the lower air supply port 116 are all used for directionally supplying air towards the indoor local area where the air supply demand is required, namely, the horizontal swinging blades and the vertical swinging blades are kept still, so that cold air or hot air is intensively blown to the most needed area. Of course, the horizontal swinging blades and the vertical swinging blades can swing to realize wind sweeping, but the wind sweeping range is only limited to the indoor local area where the human body is located in the air supply requirement, and the wind sweeping range is not the maximum wind sweeping range.
If Ta is in the cooling comfortable temperature zone in the cooling mode or in the heating comfortable temperature zone in the heating mode, the upper air supply ports 112 and 114 and the lower air supply port 116 are caused to sweep air and the air supply directions of the two are kept different. It is preferable to maximize the range of the upper and lower supply vents 112, 114, 116 to accommodate the cooling/heating needs of the entire indoor area. The air supply directions of the upper air supply outlets 112 and 114 and the lower air supply outlet 116 are kept different, so that the air outlet of the air conditioner can be more dispersed, and particularly, the air sweeping directions of the upper air supply outlets 112 and 114 and the lower air supply outlet 116 can be different, such as one air sweeping from left to right and the other air sweeping from right to left. Or the two air supply outlets are used for sweeping air from left to right (or from right to left), but the air sweeping steps are different, and for a certain area, the air of the two air supply outlets passes through the two air supply outlets successively, so that the phenomenon that the two air supply outlets supply air towards the same part at the same time to cause uneven cold/heat distribution is avoided.
If Ta is lower than the cooling comfortable temperature zone in the cooling mode or higher than the heating comfortable temperature zone in the heating mode, the lower air supply outlet 116 supplies air upwards to mix with the air output of the upper air supply outlets 112 and 114. Preferably, the lower supply port 116 is directed upward to supply air, and the upper supply ports 112 and 114 are designed to sweep air to the maximum extent. Thus, the wind from the lower air supply opening 116 can be blown upwards to disperse the wind from the upper air supply openings 112, 114, thereby achieving a mixed air supply effect and preventing the wind from directly blowing the human body.
The air conditioner determines the human body which needs to be supplied most as the human body with the air supply requirement according to the surface temperature of the human body, adjusts the rotating speeds of the two fans according to the relationship between the temperature of the human body with the air supply requirement and the refrigerating comfortable temperature area (or the heating comfortable temperature area), realizes the intelligent adjustment of the air quantity of the two fans, enables the air quantity to be more matched with the indoor air quantity requirement, and saves the energy consumption of the fans. In addition, the air quantity and the wind direction are controlled only by the temperature and the position of a human body (a person) required by air supply, and the control logic is relatively simple.
The embodiment of the invention also provides an air supply method of the air conditioner. The method is suitable for the air conditioner of any one of the above embodiments. Fig. 3 is a schematic view of an air supply method of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the air supply method includes the steps of:
step S302, detecting indoor human body information, wherein the human body information comprises human body surface temperature and human body position, and determining an air supply demand human body needing to perform key air supply, and the surface temperature is Ta.
The number of people in the room can be detected in the steps, and the human body with the air supply requirement is determined according to the number of people in the room and the surface temperature of each person. Namely: if one person exists in the room, the person is taken as the air supply demand person; if a plurality of people exist in the room, the human body with the highest surface temperature is taken as the air supply requirement human body in the cooling mode, and the human body with the lowest surface temperature in the heating mode is taken as the air supply requirement human body.
Step S304, if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper fan 410 and the lower fan 420 are both operated at the highest rotating speed;
if Ta is in the cooling comfortable temperature area in the cooling mode or in the heating comfortable temperature area in the heating mode, the upper fan 410 is operated at the highest rotation speed, and the rotation speed of the lower fan 420 is lower than the highest rotation speed;
if Ta is lower than the cooling comfortable temperature region in the cooling mode or higher than the heating comfortable temperature region in the heating mode, the rotation speeds of the upper fan 410 and the lower fan 420 are both lower than the highest rotation speed.
In the above step, the cooling comfort temperature zone may be 18 to 22 ℃ (inclusive), and the heating comfort temperature zone may be 22 to 26 ℃ (inclusive). The upper fan 410 and the lower fan 420 may have two rotational speed gears, respectively, with the highest rotational speed being a high gear (e.g., 950rpm) and the lower rotational speed being a low gear (e.g., 750 rpm).
Fig. 4 is a flow chart of an air supply method of an air conditioner according to an embodiment of the present invention. In some embodiments, the air conditioner is in a cooling mode, and the air supply can be performed by the following steps.
Step S402, detecting the number of people in the room, the surface temperature of the human body and the position of the human body.
In step S404, it is determined whether the number of people is one, if so, step S406 is performed, and if so, step S408 is performed.
And step S406, determining that only one indoor human body is a human body with air supply requirement, and taking the surface temperature of the indoor human body as Ta.
Step S408, the human body with the highest surface temperature is taken as the human body with the air supply requirement, and the surface temperature is taken as Ta.
And step S410, judging whether Ta is in the refrigerating comfortable temperature range, if so, executing step S412, and if not, executing step S414.
Step S412, the upper fan 410 is operated at the highest rotating speed, and the rotating speed of the lower fan 420 is lower than the highest rotating speed; the upper air blowing ports 112 and 114 and the lower air blowing port 116 are made to sweep air while keeping the air blowing directions thereof different.
In the above steps, it is preferable to perform maximum air blowing at the upper air blowing ports 112 and 114 and the lower air blowing port 116 to satisfy the cooling requirement of the whole indoor area, and the air blowing directions of the upper air blowing ports 112 and 114 and the lower air blowing port 116 are kept different to disperse the air outlet of the air conditioner, specifically, the air blowing directions of the two air blowing ports are different, such as one air blowing from left to right and the other air blowing from right to left. Or the two air supply outlets are made to sweep air from left to right (or from right to left), but the air sweeping steps are different, and for a certain area, the air of the two air supply outlets passes through the two air supply outlets successively, so that the two air supply outlets are prevented from blowing air towards the same part at the same time, and the cold quantity distribution is not uniform.
In step S414, it is determined whether Ta is lower than the cooling comfort temperature range, if yes, step S416 is performed, and if no, step S418 is performed.
In step S416, Ta is lower than the cooling comfort temperature range, so that the rotation speeds of the upper fan 410 and the lower fan 420 are both lower than the maximum rotation speed, and the lower air supply outlet 116 supplies air upward to mix with the air output of the upper air supply outlets 112 and 114.
In the above step, the lower air blowing port 116 may be directed upward to blow air, and the upper air blowing ports 112 and 114 may be swept to the maximum extent. Thus, the wind from the lower air supply opening 116 can be blown upwards to disperse the wind from the upper air supply openings 112, 114, thereby achieving a mixed air supply effect and preventing the wind from directly blowing the human body.
In step S418, Ta is higher than the cooling comfortable temperature range, so that the upper fan 410 and the lower fan 420 both operate at the highest rotation speed, and the upper air supply ports 112 and 114 and the lower air supply port 116 both supply air to the indoor local area where the human body is located.
In the above step, the indoor local area where the air supply demand human body is located may be a circular area having a radius R (R may be 1m) with the air supply demand human body as a center. Preferably, the upper air supply ports 112 and 114 and the lower air supply port 116 are all used for directionally supplying air towards the indoor local area where the air supply demand is required by human body, namely, the horizontal swinging blades and the vertical swinging blades are kept still, so that the air of the air conditioner is intensively blown to the most needed area. Of course, the horizontal swinging blades and the vertical swinging blades can swing to realize wind sweeping, but the wind sweeping range is only limited to the indoor local area where the human body is located in the air supply requirement, and the wind sweeping range is not the maximum wind sweeping range.
Fig. 5 is a flow chart illustrating a heating process according to an air supply method of an air conditioner according to an embodiment of the present invention. The heating mode of the air conditioner is similar to the cooling mode, and will be briefly described below. When the air conditioner is in a heating mode, air can be supplied by adopting the following steps.
Step S502, detecting the number of people in the room, the surface temperature of the human body and the position of the human body.
In step S504, it is determined whether the number of people is one, if so, step S506 is performed, and if so, step S508 is performed.
And step S506, determining that only one indoor human body is a human body with air supply requirement, and taking the surface temperature of the indoor human body as Ta.
And step S508, taking the human body with the lowest surface temperature as the human body with the air supply requirement, and taking the surface temperature as Ta.
Step S510, determining whether Ta is in the heating comfortable temperature range, if yes, executing step S512, and if no, executing step S514.
Step S512, the upper fan 410 is operated at the highest rotating speed, and the rotating speed of the lower fan 420 is lower than the highest rotating speed; the upper air blowing ports 112 and 114 and the lower air blowing port 116 are made to sweep air while keeping the air blowing directions thereof different.
In the above step, it is preferable to perform the maximum range blowing of the upper air blowing ports 112 and 114 and the lower air blowing port 116 so as to satisfy the heating requirement of the entire indoor area. The air supply directions of the upper air supply openings 112 and 114 and the lower air supply opening 116 are kept different, so that the air outlet of the air conditioner can be more dispersed, and specifically, the air sweeping directions of the two air supply openings are different, such as one air sweeping from left to right and the other air sweeping from right to left. Or the two air supply outlets are made to sweep air from left to right (or from right to left), but the air sweeping steps are different, and for a certain area, the air of the two air supply outlets passes through the two air supply outlets successively, so that the two air supply outlets are prevented from blowing air towards the same part at the same time, and uneven heat distribution is avoided.
Step S514, determining whether Ta is higher than the heating comfort temperature range, if yes, performing step S516, and if no, performing step S518.
In step S516, Ta is higher than the heating comfort temperature range, so that the rotation speeds of the upper fan 410 and the lower fan 420 are both lower than the highest rotation speed, and the lower air supply outlet 116 supplies air upwards to mix with the air output of the upper air supply outlets 112 and 114.
In the above step, the lower air blowing port 116 may be directed upward to blow air, and the upper air blowing ports 112 and 114 may be swept to the maximum extent. Thus, the wind from the lower air supply opening 116 can be blown upwards to disperse the wind from the upper air supply openings 112, 114, thereby achieving a mixed air supply effect and preventing the wind from directly blowing the human body.
Step S518, enabling the upper fan 410 and the lower fan 420 to run at the highest rotating speed when Ta is lower than the heating comfortable temperature range; the upper air supply ports 112 and 114 and the lower air supply port 116 are each configured to supply air toward a local area of the room where a human body is required for air supply.
In the above step, the indoor local area where the air supply demand human body is located may be a circular area having a radius R (R may be 1m) with the air supply demand human body as a center. Preferably, the upper air supply ports 112 and 114 and the lower air supply port 116 are all used for directionally supplying air towards the indoor local area where the air supply demand is required by human body, namely, the horizontal swinging blades and the vertical swinging blades are kept still, so that the air of the air conditioner is intensively blown to the most needed area. Of course, the horizontal swinging blades and the vertical swinging blades can swing to realize wind sweeping, but the wind sweeping range is only limited to the indoor local area where the human body is located in the air supply requirement, and the wind sweeping range is not the maximum wind sweeping range.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (9)

1. An air conditioner, comprising:
a housing;
the upper fan and the lower fan are vertically arranged in the shell and used for supplying air to the indoor space;
at least one upper air supply outlet used for being matched with the upper fan and at least one lower air supply outlet used for being matched with the lower fan are arranged on the front side of the shell;
a human body detection device configured to detect indoor human body information including a human body surface temperature and a human body position; and
the control device is configured to receive the human body information, determine an air supply requirement human body needing to perform key air supply, and the surface temperature of the human body is Ta;
if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper fan and the lower fan are both operated at the highest rotating speed;
if Ta is in the refrigerating comfortable temperature area in the refrigerating mode or in the heating comfortable temperature area in the heating mode, the upper fan is enabled to operate at the highest rotating speed, and the rotating speed of the lower fan is enabled to be lower than the highest rotating speed;
if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the rotating speeds of the upper fan and the lower fan are both lower than the highest rotating speed; and is
If Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, enabling the upper air supply outlet and the lower air supply outlet to supply air towards an indoor local area where the air supply demand human body is located;
if Ta is in the refrigerating comfortable temperature area in the refrigerating mode or in the heating comfortable temperature area in the heating mode, the upper air supply outlet and the lower air supply outlet are used for sweeping air, and the air supply directions of the upper air supply outlet and the lower air supply outlet are kept different;
and if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the lower air supply outlet supplies air upwards to be mixed with the air outlet of the upper air supply outlet.
2. The air conditioner of claim 1, wherein the control device is further configured to:
and if Ta is higher than a preset refrigerating comfortable temperature area in the refrigerating mode or lower than a preset heating comfortable temperature area in the heating mode, the upper air supply outlet and the lower air supply outlet are enabled to directionally supply air towards the indoor local area where the human body is required to supply air.
3. The air conditioner of claim 1, wherein the control device is further configured to:
and if Ta is in the refrigerating comfortable temperature area in the refrigerating mode or in the heating comfortable temperature area in the heating mode, the upper air supply outlet and the lower air supply outlet can carry out maximum air sweeping.
4. The air conditioner according to claim 1, wherein
And if Ta is lower than the refrigerating comfortable temperature area in the refrigerating mode or higher than the heating comfortable temperature area in the heating mode, the lower air supply outlet is enabled to supply air upwards in a directional mode, and the upper air supply outlet is enabled to sweep air in the largest range.
5. The air conditioner according to claim 1, wherein
And a plurality of horizontally extending transverse swing blades and a plurality of vertically extending vertical swing blades for guiding the air supply direction are respectively arranged at the upper air supply opening and the lower air supply opening.
6. The air conditioner according to claim 1, wherein
The human detection device is further configured to detect a number of persons in the room;
the control device is further configured to:
if one person exists in the room, the person is taken as the air supply demand person;
if a plurality of people exist in the room, the human body with the highest surface temperature is taken as the air supply requirement human body in the cooling mode, and the human body with the lowest surface temperature in the heating mode is taken as the air supply requirement human body.
7. The air conditioner according to claim 1, wherein
The refrigerating comfortable temperature area is 18-22 ℃;
the heating comfortable temperature zone is 22-26 ℃.
8. The air conditioner according to claim 1, wherein
The number of the upper air supply openings is two,
the number of the lower air supply outlets is one; and is
The two upper air supply outlets and the lower air supply outlet are arranged along a vertical straight line.
9. The air conditioner according to claim 1, wherein
The upper fan and the lower fan are cross-flow fans with axes extending vertically.
CN201710374965.0A 2017-05-24 2017-05-24 Air conditioner Active CN107255307B (en)

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Effective date of registration: 20201104

Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.

Patentee after: Haier Zhijia Co.,Ltd.

Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China

Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd.