CN114636195B - Control method and control device for indoor unit of air conditioner and indoor unit of air conditioner - Google Patents
Control method and control device for indoor unit of air conditioner and indoor unit of air conditioner Download PDFInfo
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- CN114636195B CN114636195B CN202210281592.3A CN202210281592A CN114636195B CN 114636195 B CN114636195 B CN 114636195B CN 202210281592 A CN202210281592 A CN 202210281592A CN 114636195 B CN114636195 B CN 114636195B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000007664 blowing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003238 somatosensory effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a control method and device for an air conditioner indoor unit and the air conditioner indoor unit. The control method of the indoor unit of the air conditioner comprises the following steps: acquiring a trigger signal for starting fresh air; detecting the indoor temperature of the indoor environment where the indoor unit of the air conditioner is located and the outdoor temperature of the outdoor environment; calculating the absolute value of the difference between the indoor temperature and the outdoor temperature; and adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value. According to the scheme, independent air supply control is realized on the two fresh air outlets, so that different working conditions are adapted, and the overall air supply effect is improved; the new trend that first new wind export was sent out blows out after the heat transfer of heat exchanger to realize the temperature regulation to outdoor new trend, make user's temperature sensing even suitable, promote user's use experience.
Description
Technical Field
The present invention relates to the field of home appliances, and in particular, to a control method and a control device for an indoor unit of an air conditioner, and an indoor unit of an air conditioner.
Background
With the development of society and the continuous improvement of living standard of people, various air conditioning apparatuses have become one of the indispensable electrical devices in people's daily life. Various air conditioning devices can help people reach an adaptable temperature when the ambient temperature is too high or too low. Current air conditioning apparatuses mainly include various types of air conditioners and fans.
Some existing air conditioners can introduce outdoor air into a room to improve indoor oxygen concentration by arranging a fresh air module, improve comfort of users and meet new health requirements of the users. However, the existing fresh air module can only realize the introduction of outdoor fresh air, and under the condition that more than one air outlet is arranged, a plurality of air outlets cannot be controlled independently, and independent air outlet cannot be realized. In addition, when indoor and outdoor temperature differ too much, the new trend that current new trend module introduced often mixes unevenly with the air conditioner air supply, and the different temperature air supply of too big difference in temperature can lead to the user's body to feel suddenly and suddenly heat like this, influences user's use experience.
Disclosure of Invention
The invention aims to realize independent air supply control of the two fresh air outlets, realize temperature regulation of outdoor fresh air and ensure that the temperature of the user is uniform and proper.
The invention further aims to automatically adjust the air output of the two fresh air outlets under different working conditions and improve the somatosensory comfort of users.
In particular, the present invention provides a control method of an air conditioner indoor unit, wherein the air conditioner indoor unit comprises: a housing defining a cavity therein; the heat exchanger is arranged in the cavity and is configured to exchange heat for air entering the cavity; and a fresh air system having a first fresh air outlet and a second fresh air outlet, wherein the fresh air sent from the first fresh air outlet is blown out after heat exchange by the heat exchanger, the fresh air sent from the second fresh air outlet is mixed with the air after heat exchange by the heat exchanger and then sent to the room, and the control method comprises: acquiring a trigger signal for starting fresh air; detecting the indoor temperature of the indoor environment where the indoor unit of the air conditioner is located and the outdoor temperature of the outdoor environment; calculating the absolute value of the difference between the indoor temperature and the outdoor temperature; and adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value.
Optionally, the first fresh air outlet is provided with a first valve controlled to be opened and closed, the second fresh air outlet is provided with a second valve controlled to be opened and closed, and the step of adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value comprises: and changing the opening degrees of the first valve and the second valve according to the absolute value so as to adjust the air output of the first fresh air outlet and the second fresh air outlet.
Optionally, the step of adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value includes: judging whether the absolute value is smaller than a first preset value or not; and if so, regulating the air output of the first fresh air outlet and the second fresh air outlet to be 50%.
Optionally, under the condition that the absolute value is larger than or equal to a first preset value and smaller than a second preset value, the air outlet of the first fresh air outlet is adjusted to be the first air outlet, the air outlet of the second fresh air outlet is adjusted to be the second air outlet, wherein the sum of the first air outlet and the second air outlet is 100%, the first air outlet is larger than 50%, and the second air outlet is smaller than 50%.
Optionally, under the condition that the absolute value is larger than or equal to a second preset value and smaller than a third preset value, the air outlet of the first fresh air outlet is adjusted to be third air outlet, the air outlet of the second fresh air outlet is fourth air outlet, wherein the sum of the third air outlet and the fourth air outlet is 100%, the third air outlet is larger than the first air outlet, and the fourth air outlet is smaller than the second air outlet.
Optionally, the air output of the first fresh air outlet is adjusted to be 100% and the air output of the second fresh air outlet is adjusted to be 0 when the absolute value is greater than or equal to a third preset value.
Optionally, the first preset value is 5 ℃, the second preset value is 10 ℃, and the third preset value is 20 ℃.
Optionally, the first air output is 60%, and the second air output is 40%; the third air output is 80%, and the fourth air output is 20%.
According to another aspect of the present invention, there is also provided a control device for an indoor unit of an air conditioner, including a processor and a memory, wherein the memory stores a control program, and the control program is used to implement the control method for an indoor unit of an air conditioner when executed by the processor.
According to another aspect of the present invention, there is also provided an indoor unit of an air conditioner, having the control device of the indoor unit of an air conditioner.
According to the control method and the control device for the indoor unit of the air conditioner and the indoor unit of the air conditioner, the indoor temperature of the indoor environment and the outdoor temperature of the outdoor environment of the indoor unit of the air conditioner are detected by acquiring the trigger signal for starting fresh air, the absolute value of the difference value between the indoor temperature and the outdoor temperature is calculated, the air output of the first fresh air outlet and the second fresh air outlet is regulated according to the absolute value, and independent air supply control is realized for the two fresh air outlets so as to adapt to different working conditions and improve the integral air supply effect; the new trend that first new wind export was sent out blows out after the heat transfer of heat exchanger to realize the temperature regulation to outdoor new trend, make user's temperature sensing even suitable, promote user's use experience.
Further, the control method, the control device and the air conditioner indoor unit of the air conditioner judge whether the absolute value is smaller than a first preset value, and when the absolute value is smaller than the first preset value, the air output of the first fresh air outlet and the second fresh air outlet are regulated to be 50%; under the condition that the absolute value is larger than or equal to a first preset value and smaller than a second preset value, the air outlet of the first fresh air outlet is adjusted to be a first air outlet, and the air outlet of the second fresh air outlet is adjusted to be a second air outlet; when the absolute value is larger than or equal to the second preset value and smaller than the third preset value, the air outlet of the first fresh air outlet is regulated to be the third air outlet, and the air outlet of the second fresh air outlet is regulated to be the fourth air outlet; under the condition that the absolute value is greater than or equal to a third preset value, the air output of the first fresh air outlet is regulated to be 100%, the air output of the second fresh air outlet is regulated to be 0, and the air output of the two fresh air outlets is automatically regulated under different working conditions, so that the somatosensory comfort level of a user is improved; even mix air supply of outdoor new trend and heat transfer back air avoids mixing the poor problem of wind sense that uneven caused, can increase whole air supply volume simultaneously, further promotes user's use experience.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
Fig. 1 is a schematic view showing an overall structure of an indoor unit of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic view of the overall structure of the indoor unit of the air conditioner in FIG. 1 from another view;
fig. 3 is a schematic structural view of a fresh air system in an indoor unit of an air conditioner according to an embodiment of the present invention; and
FIG. 4 is a schematic diagram of the structure of the new wind system of FIG. 3 from another perspective;
fig. 5 is a schematic block diagram of a control apparatus of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic view of an air supply control method of an indoor unit of an air conditioner according to an embodiment of the present invention; and
Fig. 7 is a detailed flowchart of an air supply control method of an indoor unit of an air conditioner according to an embodiment of the present invention.
Detailed Description
The embodiment firstly provides an indoor unit of an air conditioner, which can realize independent air supply control on two fresh air outlets so as to adapt to different working conditions and improve the overall air supply effect. Fig. 1 is a schematic overall structure of an indoor unit 100 of an air conditioner according to an embodiment of the present invention, fig. 2 is a schematic overall structure of an indoor unit 100 of the air conditioner of fig. 1 at another view angle, fig. 3 is a schematic structural diagram of a fresh air system 120 of an indoor unit 100 of the air conditioner according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of the fresh air system 120 of fig. 3 at another view angle. As shown in fig. 1 to 4, the air conditioner indoor unit 100 of the present embodiment may generally include: a housing 110, a heat exchanger (not shown), and a fresh air system 120.
Wherein the interior of the housing 110 defines a cavity, a heat exchanger may be disposed in the cavity and configured to exchange heat with air entering the cavity. The fresh air system 120 has a first fresh air outlet 131 and a second fresh air outlet 141, and the fresh air sent out by the first fresh air outlet 131 is blown out after heat exchange by the heat exchanger. The fresh air sent out from the second fresh air outlet 141 is mixed with the air subjected to heat exchange by the heat exchanger and then sent to the room. As shown in fig. 1 and 2, the indoor unit 100 of the air conditioner of the present embodiment may be an indoor unit of a wall-mounted air conditioner.
Specifically, the top of the housing 110 is provided with an air inlet 114 and a first air outlet 111. The heat exchanger may be configured to exchange heat with air entering the cavity through the air intake 114. The upper portion of the fresh air system 120 may be provided with a first fresh air outlet 131, and the fresh air sent from the first fresh air outlet 131 may be blown toward the air inlet 114 through the first air outlet 111. That is, in addition to the air in the indoor environment of the indoor unit 100, the air inlet 114 may enter the cavity, and the fresh air sent from the first fresh air outlet 131 may also be blown toward the air inlet 114 through the first air outlet 111, so that the air enters the cavity through the air inlet 114. The air entering the cavity, whether it is the air of the indoor environment or the air of the outdoor environment sent out from the first fresh air outlet 131, can exchange heat through the heat exchanger. In a preferred embodiment, an air intake grill may also be provided at the air intake 114 to further facilitate air entering the cavity and to initially filter some of the impurities in the air.
In the indoor unit 100 of the air conditioner of this embodiment, the fresh air sent out by the first fresh air outlet 131 is blown to the air inlet 114 through the first air outlet 111, so that the outdoor fresh air sent out by the first fresh air outlet 131 can enter the cavity through the air inlet 114 and exchange heat through the heat exchanger, thereby realizing the temperature regulation of the outdoor fresh air, enabling the temperature sensing degree of the user body to be uniform and suitable, and improving the use experience of the user.
In a specific embodiment, as shown in fig. 1, a swing blade 115 may be disposed at the first air outlet 111, and configured to enable the fresh air sent from the first fresh air outlet 131 to blow toward the air inlet 114 through the first air outlet 111 when the opening is at a preset angle. That is, the direction of the fresh air sent out from the first fresh air outlet 131 can be changed by adjusting the opening angle of the swing blade 115. In a preferred embodiment, the opening angle of the swing blade 115 may be adjusted by a small motor. As shown in fig. 1, the opening angle of the swing blade 115 is adjusted to a preset angle, so that the fresh air sent out by the first fresh air outlet 131 can be smoothly blown to the air inlet 114, and then the air inlet 114 enters the cavity for heat exchange.
In other embodiments, the specific shape of the first air outlet 111 may be set without the swing blade 115, so that the fresh air sent from the first fresh air outlet 131 may also be blown toward the air inlet 114 through the first air outlet 111. For example, the left and right edges of the first air outlet 111 are inclined toward the air inlet 114, so that the fresh air sent from the first fresh air outlet 131 is directly blown toward the air inlet 114 through the first air outlet 111. In this case, however, the direction of the air blown out from the first air outlet 111 is fixed, and only the air can be blown into the air inlet 114. The opening angle of the swing blade 115 can be adjusted according to the actual situation by providing the swing blade 115, so that the air blown out from the first air outlet 111 can be blown to the air inlet 114 when necessary, and can be blown to other directions when other situations exist.
In a preferred embodiment, as shown in fig. 3 and 4, the first fresh air outlet 131 is provided with a first valve 132 that is controlled to open and close, and the second fresh air outlet 141 is provided with a second valve 142 that is controlled to open and close. The first valve 132 may be configured to controllably vary the opening degree to adjust the air output of the first fresh air outlet 131. The fresh air system 120 may be provided at a lower portion thereof with a second fresh air outlet 141, and the second valve 142 may be configured to controllably change an opening degree to adjust an air outlet amount of the second fresh air outlet 141.
The opening of the first valve 132 is proportional to the air output of the first fresh air outlet 131, that is, the larger the opening of the first valve 132 is, the larger the air output of the first fresh air outlet 131 is. The opening of the second valve 142 is proportional to the air output of the second fresh air outlet 141, that is, the larger the opening of the second valve 142 is, the larger the air output of the second fresh air outlet 141 is. The indoor unit 100 of the air conditioner of this embodiment can realize independent air supply control to two fresh air outlets to adapt to different working conditions, promote whole air supply effect.
In a preferred embodiment, as shown in FIG. 3, the fresh air system 120 can include: the first motor 133 and the engaged first gear 134 and the first rack 135, wherein the first rack 135 is fixedly disposed on the first valve 132, and the first motor 133 drives the first gear 134 to rotate, so as to drive the first rack 135 and the first valve 132 to move, thereby changing the opening of the first valve 132. As shown in fig. 4, the fresh air system 120 further includes: the second motor 143 and the engaged second gear 144 are connected to the second rack 145, wherein the second rack 145 is fixedly disposed on the second valve 142, and the second motor 143 drives the second gear 144 to rotate, so as to drive the second rack 145 and the second valve 142 to move, thereby changing the opening of the second valve 142. Through the specific arrangement of the motor, the gear and the rack, the opening degrees of the first valve 132 and the second valve 142 can be accurately adjusted, so that the air output of the first fresh air outlet 131 and the second fresh air outlet 141 can be controlled more accurately.
As shown in fig. 1 and 2, a drainage arm 116 may be disposed below the housing 110 at intervals, and an air duct is defined inside the drainage arm 116, and is communicated with the second fresh air outlet 141 when the second valve 142 is opened. The overall length of the drainage arm 116 may be matched to the length of the upper housing 110. According to the situation shown in fig. 1 and 2, the fresh air system 120 is disposed at the left side of the cavity inside the housing 110, and the first air outlet 111 corresponding to the first fresh air outlet 131 is also disposed at the left side of the top of the housing 110. The second fresh air outlet 141 is located at the lower part of the fresh air system 120, and the left side of the air channel of the drainage arm 116 is communicated with the second fresh air outlet 141 when the second valve 142 is opened.
In addition, the front side of the drainage arm 116 is provided with a second air outlet 112 for blowing out the fresh air sent out by the second fresh air outlet 141. That is, with the second valve 142 opened, the fresh air sent from the second fresh air outlet 141 is blown toward the inner air duct of the drainage arm 116, and then blown out through the second air outlet 112 on the front side of the drainage arm 116. It should be noted that, the front sides of the drainage arms 116 may be provided with a plurality of second air outlets 112 at the same distance, and the fresh air sent out by the second fresh air outlets 141 may be evenly sent out along the transverse direction of the drainage arms 116.
As shown in fig. 2, a third air outlet 113 is formed below the front side of the housing 110 for blowing out the air heat exchanged by the heat exchanger. As mentioned before, the air entering the cavity, whether it is the air of the indoor environment or the air of the outdoor environment sent out by the first fresh air outlet 131, can exchange heat by the heat exchanger. Then, the air after heat exchange may be the air in the indoor environment entering the cavity, or the air in the outdoor environment entering the cavity through the first fresh air outlet 131 of the fresh air system 120. But regardless of the source, the heat exchanged air is always blown out through the third air outlet 113.
In a preferred embodiment, the fresh air blown out from the second air outlet 112 and the air subjected to heat exchange by the heat exchanger blown out from the third air outlet 113 are mixed and sent into the room. Specifically, since the drainage arm 116 and the lower portion of the housing 110 have a certain gap 117, when the third air outlet 113 below the front side of the housing 110 and the second air outlet 112 in front of the drainage arm 116 send air at the same time, the pressure at the gap 117 is small, so that the air in the indoor environment is forced to be sent forward by the back side of the gap 117, and the three airflows are mixed. The three airflows are respectively: fresh air sent out by the second air outlet 112, air after heat exchange sent out by the third air outlet 113 and air of indoor environment sent out by the gap 117. The turbulent flow mixing of the three airflows further reduces the wind sense difference and effectively promotes the air flow of the indoor environment.
In a specific embodiment, a heat exchange fan (not shown) may be further disposed in the cavity inside the housing 110 and configured to send out the heat exchanged air. As shown in fig. 3 and 4, the fresh air system 120 actually includes a housing 121, and a receiving cavity may be defined inside the housing 121. The interior of the receiving chamber may be provided with a fresh air fan configured to blow fresh air entering the receiving chamber toward the first fresh air outlet 131 and/or the second fresh air outlet 141. The first fresh air outlet 131 and the second fresh air outlet 141 are actually disposed at the top and bottom of the housing 121. The fresh air system 120 can be located entirely on one of the left and right sides of the cavity. In a specific embodiment, as shown in fig. 1 and 2, the fresh air system 120 may be disposed on the left side of the cavity, and the first air outlet 111 corresponding to the first fresh air outlet 131 is also disposed on the left side of the top of the housing 110.
In a preferred embodiment, as shown in fig. 3 and 4, the lower rear side of the fresh air system 120 is provided with an outdoor fresh air inlet 151, the lower front side is provided with an indoor fresh air inlet 152, and the left sides of the outdoor fresh air inlet 151 and the indoor fresh air inlet 152 are provided with a second fresh air outlet 141. As mentioned above, the fresh air system 120 may be disposed to the left of the cavity, and fig. 3 shows the view from the left of the fresh air system 120, while fig. 4 shows the view from the right of the fresh air system 120. Outdoor air can enter the receiving chamber of the fresh air system 120 through the outdoor fresh air inlet 151. Indoor air may enter the receiving chamber of the fresh air system 120 through the indoor fresh air inlet 152.
The open/close states of the outdoor fresh air inlet 151 and the indoor fresh air inlet 152 can also be adjusted by a motor. In a specific embodiment, the open and closed states of the outdoor fresh air inlet 151 and the indoor fresh air inlet 152 may be simultaneously adjusted by one motor, and one is closed with the other opened. For example, the outdoor fresh air inlet 151 is opened while the indoor air inlet is closed; or the outdoor fresh air inlet 151 is closed while the indoor fresh air inlet 152 is opened. In a preferred embodiment, the motors mentioned above may be stepper motors, so that the opening degrees of the air inlets and the air outlets can be accurately adjusted.
In a specific embodiment, when the outdoor fresh air intake is closed and the indoor fresh air intake 152 is opened, the first fresh air outlet 131 may be closed and the second fresh air outlet 141 may be opened. Therefore, when the fresh air fan operates, air in the indoor environment can enter the accommodating cavity through the indoor fresh air inlet 152 and is conveyed to the second air outlet 112 to be blown out through the second fresh air outlet 141 and the air channel of the drainage arm 116, so that indoor air circulation is realized.
It should be emphasized that, in the above description, the indoor unit 100 of an air conditioner according to the present embodiment can realize independent air supply control for two fresh air outlets, so as to adapt to different working conditions and promote the overall air supply effect. Since the fresh air entering the fresh air system 120 is only sent out from the first fresh air outlet 131 and the second fresh air outlet 141, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 can be complemented, that is, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 can be actually understood as a percentage. For example, in the case where the air output of the first fresh air outlet 131 is 60%, the air output of the second fresh air outlet 141 may be 40%. In case that the air output of the first fresh air outlet 131 is 80%, the air output of the second fresh air outlet 141 may be 20%.
The present embodiment also provides a control device for an indoor unit of an air conditioner, where the indoor unit 100 of the air conditioner in the foregoing embodiment has the control device for the indoor unit of the air conditioner. Fig. 5 is a schematic block diagram of a control apparatus 200 of an indoor unit of an air conditioner according to an embodiment of the present invention. The control apparatus 200 includes a processor 210 and a memory 220, wherein the memory 220 stores a control program 221, and the control program 221, when executed by the processor 210, is used to implement the control method of the indoor unit of the air conditioner according to any one of the embodiments described below.
The embodiment also provides an air supply control method of the air conditioner, which is suitable for the air conditioner indoor unit 100 of any embodiment, so as to realize independent air supply control on two fresh air outlets, adapt to different working conditions and improve the overall air supply effect; and can realize the temperature regulation to outdoor new trend, make user's temperature sensing even suitable, promote user's use experience. Fig. 6 is a schematic view of a control method of an indoor unit of an air conditioner according to an embodiment of the present invention. As shown in fig. 6, the control method of the indoor unit of the air conditioner may perform the steps of:
Step S602, a trigger signal for starting fresh air is obtained;
Step S604, detecting the indoor temperature of the indoor environment and the outdoor temperature of the outdoor environment where the indoor unit 100 of the air conditioner is located;
step S606, calculating the absolute value of the difference between the indoor temperature and the outdoor temperature;
In step S608, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 is adjusted according to the absolute value.
In the above steps, the trigger signal for opening the fresh air is obtained in step S602, specifically may be obtained through a remote controller of the indoor unit 100 of the air conditioner, and after the user opens the fresh air function through the remote controller, the trigger signal for opening the fresh air is obtained. The absolute value of the difference between the indoor temperature and the outdoor temperature in step S606 can be understood as actually the difference between the indoor temperature and the outdoor temperature, and the difference between the two can be different in magnitude regardless of whether the indoor temperature is higher than the outdoor temperature or the indoor temperature is lower than the outdoor temperature.
In addition, in the case where the outdoor temperature is low, for example, in winter, the air conditioner indoor unit 100 may be in a heating mode, and the air heat-exchanged by the heat exchanger may be hot air. That is, the temperature of the fresh air sent out by the first fresh air outlet 131 of the fresh air system 120 will rise through heat exchange, and the temperature of the fresh air sent out by the second fresh air outlet 141 is lower. In the case where the outdoor temperature is high, for example, in summer, the air conditioner indoor unit 100 may be in a cooling mode, and the air heat-exchanged by the heat exchanger may be cool air. That is, the temperature of the fresh air sent out by the first fresh air outlet 131 of the fresh air system 120 is reduced through heat exchange, and the temperature of the fresh air sent out by the second fresh air outlet 141 is higher. However, in either case of higher or lower outdoor temperature, the fresh air sent out through the first fresh air outlet 131 of the fresh air system 120 exchanges heat through the heat exchanger, so that the direct sending of all outdoor fresh air indoors is avoided to influence the use experience of users.
In a specific embodiment, the first fresh air outlet 131 is provided with a first valve 132 that is controlled to open and close, and the second fresh air outlet 141 is provided with a second valve 142 that is controlled to open and close. The specific process of adjusting the air output of the first fresh air outlet 131 and the second fresh air outlet 141 according to the absolute value in step S608 may include: the opening degrees of the first valve 132 and the second valve 142 are changed according to the absolute values to adjust the air output amounts of the first fresh air outlet 131 and the second fresh air outlet 141.
According to the control method of the indoor unit of the air conditioner, the trigger signal for opening fresh air is obtained, the indoor temperature of the indoor environment where the indoor unit 100 of the air conditioner is located and the outdoor temperature of the outdoor environment are detected, the absolute value of the difference value between the indoor temperature and the outdoor temperature is calculated, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 is regulated according to the absolute value, independent air supply control is realized for the two fresh air outlets, so that different working conditions are adapted, and the overall air supply effect is improved; the fresh air sent out by the first fresh air outlet 131 is blown out after heat exchange of the heat exchanger, so that the temperature of the outdoor fresh air is adjusted, the temperature of a user is uniform and proper, and the use experience of the user is improved.
In some alternative embodiments, the above steps may be further optimized and configured to enable the air conditioner indoor unit 100 to achieve a higher technical effect, and the following describes in detail the control method of the air conditioner indoor unit according to this embodiment in conjunction with the description of an alternative execution flow, where this embodiment is merely illustrative of the execution flow, and when implemented, the execution sequence and the operation condition of some steps may be modified according to the specific implementation requirement. Fig. 7 is a detailed flowchart of a control method of an indoor unit of an air conditioner according to an embodiment of the present invention, the control method of the indoor unit of the air conditioner including the steps of:
Step S702, acquiring a trigger signal for starting fresh air;
Step S704, detecting the indoor temperature of the indoor environment and the outdoor temperature of the outdoor environment where the indoor unit 100 of the air conditioner is located;
Step S706, calculating the absolute value of the difference between the indoor temperature and the outdoor temperature;
Step S708, judging whether the absolute value is smaller than a first preset value, if yes, executing step S710, otherwise, executing step S712;
step S710, adjusting the air output of the first fresh air outlet 131 and the second fresh air outlet 141 to be 50%;
Step S712, judging whether the absolute value is larger than or equal to the first preset value and smaller than the second preset value, if yes, executing step S714, otherwise, executing step S716;
Step S714, adjusting the air output of the first fresh air outlet 131 to be the first air output, and the air output of the second fresh air outlet 141 to be the second air output;
Step S716, judging whether the absolute value is larger than or equal to a second preset value and smaller than a third preset value, if so, executing step S718, and if not, executing step S720;
Step S718, adjusting the air output of the first fresh air outlet 131 to be the third air output, and the air output of the second fresh air outlet 141 to be the fourth air output;
in step S720, the air output of the first fresh air outlet 131 is adjusted to be 100% and the air output of the second fresh air outlet 141 is adjusted to be 0.
It should be noted that, according to the normal understanding, the first preset value, the second preset value and the third preset value in the above steps may determine the magnitude relation between each other, that is, the first preset value is smaller than the second preset value, and the second preset value is smaller than the third preset value. In a specific embodiment, the first preset value is 5 ℃, the second preset value is 10 ℃, and the third preset value is 20 ℃. And, according to the execution sequence of the above steps, step S716 determines that the result is no, that is, the absolute value is equal to or greater than the third preset value. That is, when the absolute value is equal to or greater than the third preset value, step S720 is performed.
In addition, in step S714, the sum of the first air output and the second air output is 100%, the first air output is greater than 50%, and the second air output is less than 50%. The sum of the third air output and the fourth air output in the step S718 is 100%, the third air output is larger than the first air output, and the fourth air output is smaller than the second air output. For example, in one specific embodiment, the first air output is 60% and the second air output is 40%; the third air output is 80%, and the fourth air output is 20%. The specific values of the preset temperature values and the air output are only examples, and are not limiting of the present invention. In other embodiments, other values may be set according to the actual situation, but the above-mentioned relationships with each other are always satisfied.
Several specific embodiments are described below: if the absolute value of the difference between the indoor temperature and the outdoor temperature is smaller than the first preset value of 5 ℃, the temperature difference between the indoor temperature and the outdoor temperature can be considered to be very small, the mixed air supply of the fresh air directly sent out by the second fresh air outlet 141 of the fresh air system 120 and the air after heat exchange is very uniform, and the comfort level of the body feeling of the user can be hardly affected. At this time, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 are adjusted to be 50%, so that the air output of the first fresh air outlet 131 and the second fresh air outlet 141 are the same.
If the absolute value of the difference between the indoor temperature and the outdoor temperature is greater than or equal to the first preset value of 5 ℃ and less than the second preset value of 10 ℃, the temperature difference between the indoor temperature and the outdoor temperature can be considered to be smaller, and the fresh air directly sent out by the second fresh air outlet 141 of the fresh air system 120 is slightly non-uniform with the air after heat exchange, so that the comfort level of the user's body feeling can be slightly affected. At this time, the air output of the first fresh air outlet 131 is adjusted to be 60% of the first air output, and the air output of the second fresh air outlet 141 is adjusted to be 40% of the second air output, so that the air output of the first fresh air outlet 131 is slightly larger than the air output of the second fresh air outlet 141.
If the absolute value of the difference between the indoor temperature and the outdoor temperature is greater than or equal to the second preset value of 10 ℃ and less than the third preset value of 20 ℃, the temperature difference between the indoor temperature and the outdoor temperature can be considered to be large, and the fresh air directly sent out by the second fresh air outlet 141 of the fresh air system 120 is not uniformly mixed with the air after heat exchange, so that the comfort level of the body feeling of the user can be influenced. At this time, the air output of the first fresh air outlet 131 is adjusted to be 80% of the third air output, and the air output of the second fresh air outlet 141 is adjusted to be 20% of the fourth air output, so that the air output of the first fresh air outlet 131 is further greater than the air output of the second fresh air outlet 141.
If the absolute value of the difference between the indoor temperature and the outdoor temperature is greater than or equal to the third preset value of 20 ℃, it can be considered that the difference between the indoor temperature and the outdoor temperature is very large, and the mixture of the fresh air directly sent out by the second fresh air outlet 141 of the fresh air system 120 and the air after heat exchange is very uneven, which can very affect the comfort level of the user's body feeling. At this time, the air output of the first fresh air outlet 131 is adjusted to be 100%, and the air output of the second fresh air outlet 141 is adjusted to be 0, so that all the fresh air entering the fresh air system 120 is sent out from the first fresh air outlet 131, and is sent into the room after heat exchange by the heat exchanger.
In short, under the condition that the temperature difference between the indoor temperature and the outdoor temperature is too large, the air output of the first fresh air outlet 131 and the second fresh air outlet 141 are adjusted, so that the air output of the first fresh air outlet 131 is larger than that of the second fresh air outlet 141, the fresh air after heat exchange is more than the fresh air directly sent out, and the uncomfortable feeling of the air supply temperature difference to a user can be reduced. In a preferred embodiment, no matter how much the air output of the first fresh air outlet 131 and the second fresh air outlet 141 are, the fresh air sent from the first fresh air outlet 131 is always blown out through the third air outlet 113 after heat exchange, the fresh air sent from the second fresh air outlet 141 is always blown out through the second air outlet 112 of the drainage arm 116, and the air blown out from the second air outlet 112 and the third air outlet 113 are further mixed and then sent into the room. The air is pre-treated by the heat exchanger, and the difference of wind sense is effectively reduced by the double measure that the air before and after the heat exchange is fully mixed with the other part of fresh air.
The control method of the indoor unit of the air conditioner can realize the temperature adjustment of the outdoor fresh air, so that the temperature sensing of the user is uniform and proper, and the use experience of the user is improved; independent air supply control is realized on the two fresh air outlets so as to adapt to different working conditions and improve the overall air supply effect; can realize the even mix air supply of outdoor new trend and heat transfer back air, avoid mixing the poor problem of wind sense that uneven caused, can effectively increase whole air supply volume simultaneously, further promote user's use experience.
By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.
Claims (6)
1. A control method of an air conditioner indoor unit, wherein the air conditioner indoor unit comprises: the shell is internally limited with a cavity, and the top of the shell is provided with an air inlet and a first air outlet; the heat exchanger is arranged in the cavity and is configured to exchange heat for air entering the cavity; the fresh air system is provided with a first fresh air outlet and a second fresh air outlet, the fresh air sent out by the first fresh air outlet is blown out after heat exchange of the heat exchanger, the fresh air sent out by the second fresh air outlet is mixed with the air subjected to heat exchange of the heat exchanger and then sent into a room, the upper part of the fresh air system is provided with the first fresh air outlet, and the fresh air sent out by the first fresh air outlet is blown to the air inlet through the first air outlet, and the control method comprises the following steps:
Acquiring a trigger signal for starting fresh air;
detecting the indoor temperature of the indoor environment where the indoor unit of the air conditioner is positioned and the outdoor temperature of the outdoor environment;
Calculating an absolute value of the difference between the indoor temperature and the outdoor temperature; and
Adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value,
Judging whether the absolute value is smaller than a first preset value or not; and if so, regulating the air output of the first fresh air outlet and the second fresh air outlet to be 50 percent,
When the absolute value is larger than or equal to the first preset value and smaller than the second preset value, the air outlet of the first fresh air outlet is regulated to be a first air outlet, the air outlet of the second fresh air outlet is regulated to be a second air outlet, wherein the sum of the first air outlet and the second air outlet is 100%, the first air outlet is larger than 50%, the second air outlet is smaller than 50%,
When the absolute value is larger than or equal to the second preset value and smaller than a third preset value, the air outlet of the first fresh air outlet is regulated to be third air outlet, the air outlet of the second fresh air outlet is regulated to be fourth air outlet, wherein the sum of the third air outlet and the fourth air outlet is 100%, the third air outlet is larger than the first air outlet, the fourth air outlet is smaller than the second air outlet, the first preset value is smaller than the second preset value, the second preset value is smaller than the third preset value,
When the absolute value is larger than or equal to the third preset value, the air outlet of the first fresh air outlet is regulated to be 100%, the air outlet of the second fresh air outlet is regulated to be 0,
The first fresh air outlet is provided with a first valve which is controlled to be opened and closed, the second fresh air outlet is provided with a second valve which is controlled to be opened and closed,
A drainage arm is arranged below the shell at intervals, an air channel is defined in the drainage arm, the air channel is communicated with the second fresh air outlet under the condition that the second valve is opened, a second air outlet is arranged at the front side of the drainage arm for blowing out the fresh air sent out by the second fresh air outlet,
A third air outlet is formed in the lower portion of the front side of the shell, so that air subjected to heat exchange through the heat exchanger is blown out, and fresh air blown out from the second air outlet is mixed with air subjected to heat exchange through the heat exchanger and blown out from the third air outlet and then is sent to the room.
2. The method of claim 1, wherein,
The step of adjusting the air output of the first fresh air outlet and the second fresh air outlet according to the absolute value comprises the following steps: and changing the opening degrees of the first valve and the second valve according to the absolute value so as to adjust the air output of the first fresh air outlet and the second fresh air outlet.
3. The method of claim 1, wherein,
The first preset value is 5 ℃,
The second preset value is 10 ℃,
The third preset value is 20 ℃.
4. The method of claim 3, wherein,
The first air outlet quantity is 60%, and the second air outlet quantity is 40%;
the third air outlet quantity is 80%, and the fourth air outlet quantity is 20%.
5. A control device of an air conditioner indoor unit, comprising a processor and a memory, wherein the memory stores a control program, and the control program, when executed by the processor, is for realizing the control method of an air conditioner indoor unit according to any one of claims 1 to 4.
6. An air conditioner indoor unit having the control device of an air conditioner indoor unit according to claim 5.
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