CN113503586A - Air conditioner indoor unit and air conditioner control method - Google Patents
Air conditioner indoor unit and air conditioner control method Download PDFInfo
- Publication number
- CN113503586A CN113503586A CN202110797577.XA CN202110797577A CN113503586A CN 113503586 A CN113503586 A CN 113503586A CN 202110797577 A CN202110797577 A CN 202110797577A CN 113503586 A CN113503586 A CN 113503586A
- Authority
- CN
- China
- Prior art keywords
- air
- air outlet
- indoor
- air conditioner
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to an air conditioner indoor unit and an air conditioner control method. A heat exchange device is arranged in the first channel, and the first channel is arranged between the first air inlet and the air outlet; the first end of the first channel is connected with the second air inlet, and the second end faces the air outlet. In the invention, the first air inlet enables the primary indoor return air to enter, the second air inlet enables the secondary indoor return air to enter, and the air after heat exchange is mixed with the secondary indoor return air and then is discharged into the room. The temperature difference between the whole air outlet of the air conditioner and the indoor air is reduced, the body feeling comfort level of indoor personnel is improved, and air conditioner diseases caused by overlarge temperature difference of the air conditioner are reduced. The air conditioner heat exchange air outlet is mixed with the indoor secondary indoor return air, so that the mixing of the air conditioner air outlet and the indoor air is accelerated, the air flow capacity and the heat exchange efficiency are improved, and the improvement of the temperature balance of the indoor air is facilitated.
Description
Technical Field
The application relates to the field of air treatment, in particular to an air conditioner indoor unit and an air conditioner control method.
Background
With the improvement of living standard, people have higher and higher requirements on the comfort of living environment. The air conditioner can refrigerate or heat the indoor temperature, and the temperature difference exists between the air outlet of the air conditioner and the indoor air, and is very obvious particularly at the initial stage of the operation of the air conditioner. In the cooling mode, the air outlet temperature of the air conditioner during cooling is low, the temperature difference between the air outlet of the air conditioner and the indoor air is large, more time is needed for mixing with the indoor air, and the indoor cooling efficiency is reduced. In addition, the temperature difference between the cold air and the indoor air can bring obvious discomfort to human bodies, easily cause air conditioning diseases, cause diseases such as cough, body ache and the like, and particularly have very bad influence on the body health of old people and children. In the heating mode, the air outlet temperature of the air conditioner is high, so that sudden drop of indoor humidity is easily caused, the air becomes dry, discomfort of people is caused, and the problem of a respiratory system is easily caused.
In view of the above, it is desirable to improve the existing air conditioner to reduce the temperature difference between the outlet air of the air conditioner and the indoor air.
Disclosure of Invention
In order to solve the technical problem that the temperature difference between the air outlet and the indoor air outlet of the air conditioner in the prior art is too large, the application provides an air conditioner indoor unit and an air conditioner control method.
In a first aspect, the present invention provides an indoor unit of an air conditioner, including a body, where the body is provided with a first air inlet, a second air inlet, and an air outlet, and the body further includes:
the first channel is internally provided with a heat exchange device and is arranged between the first air inlet and the first air outlet; and the number of the first and second groups,
and the first end of the first channel is connected with the second air inlet, and the second end of the first channel faces the air outlet.
In a preferred embodiment, a first fan is arranged on one side of the heat exchange device, which is away from the first air inlet, a second fan is arranged in the second channel, and an air outlet of the second fan is communicated with the air outlet.
In a preferred embodiment, the machine body is provided with a fresh air inlet for introducing outdoor fresh air, the first air inlet is communicated with the fresh air inlet, and the fresh air and primary indoor return air are mixed and enter the heat exchange device.
In a preferred embodiment, the outlet comprises:
the first air outlet is movably provided with the first air outlet plate so as to seal or open the first air outlet; and the number of the first and second groups,
and the second air outlet is movably provided with the second air outlet plate so as to seal or open the second air outlet.
Further, in the above embodiment, the first air outlet plate is provided with a first rotating shaft, and the first rotating shaft is driven by a first motor; and/or, the second air outlet plate is provided with a second rotating shaft, and the second rotating shaft is driven by a second motor.
Further, in the above embodiment, the first air outlet is provided with a first slide rail, and the first air outlet plate is driven by a first motor and slidably provided on the first slide rail; and/or, the second air outlet is provided with a second slide rail, and the second air outlet plate is driven by a second motor and is slidably arranged on the second slide rail.
In a preferred embodiment, the fresh air inlet is provided with a first temperature sensor, the first air inlet and/or the second air inlet is provided with a second temperature sensor, the air outlet side of the heat exchange device is provided with a third temperature sensor, and the air outlet is provided with a fourth temperature sensor.
In a second aspect, the present invention provides an air conditioner control method, which is applied to the air conditioner indoor unit with the above structure, and includes the following steps:
the air conditioner receives a starting signal;
the first air inlet, the second air inlet and the air outlet are opened;
the primary indoor return air enters the first channel from the first air inlet, and the secondary indoor return air enters the second channel from the second air inlet;
the primary indoor return air is subjected to heat exchange by the heat exchange device, then is mixed with the secondary indoor return air, and is discharged into a room from the air outlet.
In a preferred embodiment, the first air inlet and the second air inlet are opened, the fresh air inlet is opened synchronously, and the fresh air and the primary indoor return air are mixed and then exchange heat together
In a preferred embodiment, after the air conditioner receives the turn-on signal, the mode signal is acquired:
if the air conditioner enters a refrigeration mode, the air outlet exhausts air upwards;
if the heating mode is entered, the air outlet exhausts air downwards;
if the air enters the ventilation mode, the air outlet exhausts air upwards and downwards simultaneously.
In a preferred embodiment, after the air conditioner receives the turn-on signal, the mode signal is acquired:
if the air conditioner enters a refrigeration mode, the temperature difference between the target refrigeration temperature and the indoor temperature is obtained, the target refrigeration temperature is lower than a first temperature difference threshold value, a second air inlet is opened, and secondary indoor return air enters a second channel;
if the air conditioner enters a heating mode, the temperature difference between the target heating temperature and the indoor temperature is obtained, the target heating temperature is higher than a second temperature difference threshold value, a second air inlet is opened, and secondary indoor return air enters a second channel;
if the ventilation mode is entered, the second air inlet is closed, and the second channel is closed.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages: the first air inlet enables the primary indoor return air to enter, the second air inlet enables the secondary indoor return air to enter, and the air after heat exchange is mixed with the secondary indoor return air and then is discharged into the room. The temperature difference between the whole air outlet of the air conditioner and the indoor air is reduced, the body feeling comfort level of indoor personnel is improved, and air conditioner diseases caused by overlarge temperature difference of the air conditioner are reduced. The air conditioner heat exchange air outlet is mixed with the indoor secondary indoor return air, so that the mixing of the air conditioner air outlet and the indoor air is accelerated, the air flow capacity and the heat exchange efficiency are improved, and the improvement of the temperature balance of the indoor air is facilitated. For traditional fixed frequency air conditioner and variable frequency air conditioner, the adaptable amount of wind of the once return air and secondary return air volume of this application changes the load that arouses and changes, avoids the compressor to be in high load operation, keeps the holistic high-efficient operation of compressor, has overcome the shortcoming of traditional air conditioner.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present disclosure;
fig. 2 is a schematic structural view of an upper air outlet mode provided in the embodiment of the present application;
fig. 3 is a schematic structural view of a lower air outlet mode provided in the embodiment of the present application;
fig. 4 is a schematic flow chart of an air supply method of an air conditioner according to an embodiment of the present application.
Wherein the reference numerals are:
100. a body; 101. a first air inlet; 102. a second air inlet; 103. an air outlet; 1031. a first air outlet plate; 1032. a second air outlet plate; 104. a fresh air inlet; 105. an evaporator; 110. a first channel; 111. a heat exchange device; 112. a first fan; 120. a second channel; 121. and a second fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to solve the technical problem that the temperature difference between the air outlet of the air conditioner and the indoor air outlet of the prior art is too large, the application provides an air conditioner indoor unit and an air conditioner control method with reference to fig. 1-4. This application is through the structure of twice return air, makes the air-out of air conditioner reduce with the difference in temperature of indoor air for the heat exchange efficiency of indoor return air, can improve indoor personnel's body and feel the comfort level moreover. The air conditioner of the invention can be applied to not only the household on-hook air conditioner in the figure, but also a central air conditioning system, and can be applied to but not limited to large public occasions such as markets, office buildings, hospitals, airports, stations and the like. The following is set forth by way of specific examples and accompanying drawings of the specification.
In a first aspect, referring to fig. 1, the present invention provides an indoor unit of an air conditioner, including a body 100, where the body 100 is provided with a first air inlet 101, a second air inlet 102, and an air outlet 103, and the body 100 further includes a first channel 110 and a second channel 120. The first channel 110 is provided with a heat exchange device 111 therein, and the first channel 110 is provided between the first air inlet 101 and the air outlet 103. The first end of the second channel 120 is connected to the second air inlet 102, and the second end faces the air outlet 103. The first air inlet 101 is arranged on the upstream side of the heat exchanging device 111, the second air inlet 102 is arranged on the downstream side of the heat exchanging device 111, the air outlet 103 is arranged on the downstream side of the heat exchanging device 111, and the second air inlet 102 is communicated with the air outlet 103.
In order to reduce discomfort to indoor persons due to the flow of air caused by the return air, the first air inlet 101 and the second air inlet 102 are provided at an upper portion of the air conditioner, and the indoor air flows at a top layer. Preferably, the first air inlet 101 and the second air return inlet 102 are provided with a baffle, and the opening or closing of the return air and the adjustment of the return air volume are realized through the opening and closing of the baffle.
Preferably, the second channel 120 may be disposed at the top of the air conditioner, avoiding the front panel, and the first air inlet 101 and the second air inlet 102 may be adjacent to each other, or may be disposed at both sides of the air conditioner. The number of the second air inlets 102 can be two according to the arrangement position, if the second air inlets are positioned at two sides of the air conditioner, the two second air inlets 102 are respectively provided with a fan, so that secondary return air is respectively mixed with air after heat exchange of the air conditioner at two sides.
According to the technical scheme, the first air inlet 101 enables primary indoor return air to enter, the second air inlet 102 enables secondary indoor return air to enter, and the air after heat exchange is mixed with the secondary indoor return air and then is discharged into the room. The temperature difference between the whole air outlet of the air conditioner and the indoor air is reduced, the body feeling comfort level of indoor personnel is improved, and air conditioner diseases caused by overlarge temperature difference of the air conditioner are reduced. The air conditioner heat exchange air outlet is mixed with the indoor secondary indoor return air, so that the mixing of the air conditioner air outlet and the indoor air is accelerated, the air flow capacity and the heat exchange efficiency are improved, and the improvement of the temperature balance of the indoor air is facilitated. For traditional fixed frequency air conditioner and variable frequency air conditioner, the adaptable amount of wind of the once return air and secondary return air volume of this application changes the load that arouses and changes, avoids the compressor to be in high load operation, keeps the holistic high-efficient operation of compressor, has overcome the shortcoming of traditional air conditioner.
Referring to fig. 1, in a preferred embodiment, the body 100 is provided with a fresh air inlet 104 for introducing fresh air from the outside, the first air inlet 101 is connected to the fresh air inlet 104, and the fresh air and the primary indoor return air are mixed to enter the heat exchanging device 111. In consideration of the oxygen content of the indoor air, the external air is introduced, so that the indoor air is prevented from being internally circulated, and the indoor carbon dioxide content is higher and higher due to the indoor internal circulation. But directly cool down the dehumidification to the new trend, reduced the system efficiency of air conditioner, lead to the power consumption of air conditioner to rise. Therefore, after outdoor fresh air is introduced into the air conditioner, the fresh air inlet 104 and the first air inlet 101 are communicated to enable the fresh air to be mixed with primary indoor return air, so that the oxygen content of the indoor air can be improved, the fresh air is directly subjected to heat exchange, the temperature difference with the target heat exchange temperature can be reduced, and the energy consumption of the heat exchange device 111 is reduced.
Referring to fig. 1, in a preferred embodiment, the air outlets 103 include a first air outlet 103 and a second air outlet 103. The first air outlet 103 is movably provided with a first air outlet plate 1031 to close or open the first air outlet 103. The second air outlet 103 is movably provided with a second air outlet plate 1032 to close or open the second air outlet 103. The first air outlet 103 and the second air outlet 103 have different orientations, and the orientation of air outlet of the air conditioner can be selected according to needs. The first outlet 103 and the second outlet 103 may be opened simultaneously or alternatively. If the indoor air enters the ventilation mode, the first air outlet 103 and the second air outlet 103 can be opened simultaneously, the air outlet area is increased, and the air outlet resistance is reduced. Considering that the air conditioner is generally installed in the upper part of the space when in use, the first air outlet 103 can face the right front of the air conditioner to let the outlet air enter the upper air in the room; the second outlet 103 may face the lower side of the air conditioner, so that the outlet air enters the indoor lower air layer. In the cooling mode, the indoor temperature is high, but cold air is directly blown to make people feel uncomfortable, at the moment, the first air outlet 103 can be selectively opened, so that the cold air and the indoor air are gradually reduced after being mixed, and bathing cooling is formed. In the heating mode, the indoor temperature is low, and the second air outlet 103 facing downwards can be selectively opened, so that indoor personnel feel hot air to be beneficial to warm keeping, and blanket heating is formed.
Further, in consideration of smoother movement of the first outlet plate 1031 and the second outlet plate 1032 and reduced noise, the present embodiment is driven by an electric mechanism. Referring to fig. 2 and 3, in the present embodiment, the first air outlet plate 1031 and/or the second air outlet plate 1032 adopts a turnover structure, the first air outlet plate 1031 is provided with a first rotating shaft, and the first rotating shaft is driven by a first motor; the second air outlet plate 1032 is provided with a second rotating shaft, and the second rotating shaft is driven by a second motor. The air conditioner is equipped with panel and bottom plate, and first air-out board 1031 overturns the bottom plate below when opening, can keep laminating with the bottom plate, and second air-out board 1032 overturns the panel the place ahead when opening, keeps laminating with the panel. Of course, the rotation angles of the first air outlet plate 1031 and the second air outlet plate 1032 can be adjusted to adjust the size, and then the air outlet direction is adjusted. Specifically, the first motor and the second motor are not shown in the figure, and a servo motor or a stepping motor may be specifically adopted, so as to control the rotation angle of the first air outlet plate 1031 and the second air outlet plate 1032 by controlling the rotation angle of the motors.
In other embodiments, the first outlet plate 1031 and/or the second outlet plate 1032 can adopt a translation structure. The first air outlet 103 is provided with a first slide rail, and the first air outlet plate 1031 is driven by the first motor and is slidably arranged on the first slide rail; and/or, the second air outlet 103 is provided with a second sliding rail, and the second air outlet plate 1032 is driven by the second motor and is slidably arranged on the second sliding rail. Convertible structure need occupy a large amount of spaces when the upset, and the action of translation formula structure need not to occupy too much space, and the slide rail orbit is more stable moreover.
Referring to fig. 2 and 3, in a preferred embodiment, a first fan 112 is disposed on a side of the heat exchanging device 111 away from the first air inlet 101, and the first fan 112 operates to make the fresh air and the primary indoor return air flow through the heat exchanging device 111. The first fan 112 is disposed inside the evaporator, and uses negative pressure to return air to the room for heat exchange. With the above embodiment, in order to introduce the outdoor air, the fresh air inlet 104 is disposed on the air conditioner, the fresh air inlet 104 is communicated with the first air inlet 101, and the fresh air and the primary indoor return air are mixed to exchange heat together under the negative pressure of the first fan 112. A second fan 121 is arranged in the second air inlet 102, and an air outlet of the second fan 121 is communicated with the air outlet 103. The secondary indoor return air of the second air inlet 102 does not need to undergo heat exchange, and only needs to be mixed with the outlet air after heat exchange. The second fan 121 may be an axial flow fan, and air is introduced into the air outlet 103; the first fan 112 is a cross-flow fan to match the shape and air intake area of the evaporator. Considering that the second fan 121 may cause the thickness of the air conditioner to become larger on the air outlet side of the air conditioner, a small-sized fan may be used, but a plurality of fans may be provided along the length direction of the air outlet 103, so that the occupied space is reduced and the ventilation capacity is improved. The first fan 112 and the second fan 121 can be set as variable frequency fans and controlled by a control module of the air conditioner, and the ventilation volume of the first fan 112 and the second fan 121 can be adjusted according to the air volume change and the temperature difference.
In a preferred embodiment, the machine body 100 is provided with an air outlet 103, a first air inlet 101, a second air inlet 102 and an air outlet 103, the fresh air inlet 104 is provided with a first temperature sensor, the first air inlet 101 and/or the second air inlet 102 is provided with a second temperature sensor, the air outlet side of the heat exchanging device 111 is provided with a third temperature sensor, and the air outlet 103 is provided with a fourth temperature sensor. The fresh air and the primary indoor return air form primary mixed air, and the primary mixed air and the secondary indoor return air form secondary mixed air, namely, the secondary mixed air is discharged to indoor air conditioner air outlet. Each sensor is not shown on the picture, and first temperature sensor is used for detecting the new trend temperature, and second temperature sensor is used for detecting indoor return air temperature, and the third sensor is used for detecting the temperature behind the primary mixed wind heat transfer, and the fourth sensor is used for detecting the temperature of secondary mixed wind also is the air-out temperature that gets into indoorly.
In this embodiment, the temperature of the fresh air is set to T1The temperature of the primary indoor return air and the secondary indoor return air is T2The fresh air and the primary indoor return air form primary mixed air after heat exchange, and the temperature is T3The primary mixed air and the secondary indoor return air are mixed to form secondary mixed air with the temperature of T4. The primary mixed air temperature T3 is determined by the temperature and the proportion of primary indoor return air and fresh air; secondary mixed air temperature T4The temperature and the proportion of the secondary indoor return air and the primary mixed air are determined. In the cooling mode, often used in summer, T3<T4<T2<T1In heating mode, often used in winter, T3>T4>T2>T1。
In a second aspect, referring to fig. 4, the present invention provides an air conditioner control method applied to the air conditioner indoor unit with the above structure, including the following steps:
the air conditioner receives a starting signal;
the first air inlet 101, the second air inlet 102 and the air outlet 103 are opened;
the primary indoor return air enters the first channel 110 from the first air inlet 101, and the secondary indoor return air enters the second channel 120 from the second air inlet 102;
the primary indoor return air is subjected to heat exchange by the heat exchange device 111, mixed with the secondary indoor return air, and discharged into the room through the air outlet 103.
The air supply method of the invention mixes the air after heat exchange with the indoor secondary indoor return air and then discharges the air into the room. The temperature difference between the whole air outlet of the air conditioner and the indoor air is reduced, the body feeling comfort level of indoor personnel is improved, and air conditioner diseases caused by overlarge temperature difference of the air conditioner are reduced. And for traditional return air setting, set up second air outlet 103 at the air outlet 103 of air conditioner, make air conditioner heat transfer air-out and the indoor return air of indoor secondary mix for the mixture of air conditioner air-out and indoor air, improve air flow capacity and heat exchange efficiency, help improving the temperature balance of indoor air.
In a preferred embodiment, the first air inlet 101 and the second air inlet 102 are opened, the fresh air inlet 104 is opened synchronously, and the fresh air and the primary indoor return air are mixed to exchange heat together. In consideration of the oxygen content of the indoor air, the external air is introduced, so that the indoor air is prevented from being internally circulated, and the indoor carbon dioxide content is higher and higher due to the indoor internal circulation. But directly cool down the dehumidification to the new trend, reduced the system efficiency of air conditioner, lead to the power consumption of air conditioner to rise. Therefore, after outdoor fresh air is introduced into the air conditioner, the fresh air inlet 104 and the first air inlet 101 are communicated to enable the fresh air to be mixed with primary indoor return air, so that the oxygen content of the indoor air can be improved, the fresh air is directly subjected to heat exchange, the temperature difference with the target heat exchange temperature can be reduced, and the energy consumption of the heat exchange device 111 is reduced.
In a preferred embodiment, after the air conditioner receives the turn-on signal, the mode signal is acquired:
if the air conditioner enters the refrigeration mode, the air outlet 103 exhausts air upwards;
if the heating mode is entered, the air outlet 103 exhausts air downwards;
if the ventilation mode is entered, the air outlet 103 exhausts air both upward and downward.
In the cooling mode, the indoor temperature is high, but cold air is directly blown to make people feel uncomfortable, at the moment, the first air outlet 103 can be selectively opened to enable the air outlet 103 to exhaust air upwards, so that the cold air is mixed with the air on the upper layer of the room and then gradually descends to form bath cooling. Under the heating mode, the indoor temperature is lower, the second air outlet 103 facing downwards can be selectively opened at the moment, the air outlet 103 exhausts air downwards, so that people in the indoor middle and lower layers feel hot air, the temperature can be quickly acquired, but the carpet type heating mode is formed instead of directly blowing a human body. In the ventilation mode, in order to maximize the air exchange efficiency, the air outlet 103 is fully utilized, and the indoor and outdoor temperatures are substantially the same in the ventilation mode, and at this time, the air outlet 103 exhausts air in two directions without considering the temperature difference.
Specifically, after outdoor fresh air is introduced and secondary indoor return air is conducted indoors, the indoor outlet air temperature can be reduced to 26 ℃ during heating and is far lower than 35 ℃ during heating of the existing air conditioner, sudden drop of indoor humidity cannot be caused, and the body feeling is more comfortable; the indoor air outlet temperature is reduced to 22 ℃ during refrigeration, which is far lower than 16 ℃ during refrigeration of the existing air conditioner, and the body feeling is more comfortable. Therefore, no matter heating or cooling is carried out, the air outlet of the air conditioner is closer to the indoor temperature and the comfortable temperature range of a human body, the influence on the indoor humidity is small, and the indoor people feel more comfortable.
In a preferred embodiment, after the air conditioner receives the turn-on signal, the mode signal is acquired:
if the air conditioner enters a refrigeration mode, the temperature difference between the target refrigeration temperature and the indoor temperature is obtained, the target refrigeration temperature is lower than the first temperature difference threshold value, the second air inlet 102 is opened, and secondary indoor return air enters the second channel 120;
if the heating mode is started, the temperature difference between the target heating temperature and the indoor temperature is obtained, the target heating temperature is higher than a second temperature difference threshold value, the second air inlet 102 is opened, and secondary indoor return air enters the second channel 120;
if the ventilation mode is entered, the second air inlet 102 is closed, and the second passage 120 is closed.
Under different working modes of the air conditioner, the temperature of the air outlet of the air conditioner has larger difference. When refrigerating, because the indoor difference in temperature, the human body is cooled suddenly and easily leads to air conditioner diseases such as flu, has consequently set up first difference in temperature threshold value, when the difference in temperature of target refrigeration temperature and indoor temperature is too big, opens the indoor return air of secondary, reduces the indoor human body and feels the difference in temperature. Under the heating mode, the human body is heated suddenly and can also cause dry mouth and nose, causes other diseases such as dry cough, sets up the second difference in temperature threshold value. In the heating and refrigerating modes, when the temperature difference is small, the secondary return air is closed within the human body bearing range, and the secondary return air is usually provided with a fan to control the air quantity, so that the energy loss can be reduced at the moment. Specifically, the first temperature difference threshold value and the second temperature difference threshold value can be set between 0.5 ℃ and 2 ℃, if the first temperature difference threshold value is 1 ℃ during heating and the second temperature difference threshold value is-1 ℃ during cooling, the human-based experience can be further improved through manual adjustment.
According to the technical scheme, the first air inlet 101 enables primary indoor return air to enter, the second air inlet 102 enables secondary indoor return air to enter, and the air after heat exchange is mixed with the secondary indoor return air and then is discharged into the room. The temperature difference between the whole air outlet of the air conditioner and the indoor air is reduced, the body feeling comfort level of indoor personnel is improved, and air conditioner diseases caused by overlarge temperature difference of the air conditioner are reduced. The air conditioner heat exchange air outlet is mixed with the indoor secondary indoor return air, so that the mixing of the air conditioner air outlet and the indoor air is accelerated, the air flow capacity and the heat exchange efficiency are improved, and the improvement of the temperature balance of the indoor air is facilitated.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. The utility model provides an indoor unit of air conditioner, its characterized in that includes organism (100), organism (100) are equipped with first income wind gap (101), second income wind gap (102) and air outlet (103), organism (100) still includes:
a first channel (110), a heat exchange device (111) is arranged in the first channel (110), and the first channel (110) is arranged between the first air inlet (101) and the air outlet (103); and the number of the first and second groups,
a second channel (120), a first end of the second channel (120) is connected to the second air inlet (102), and a second end faces the air outlet (103).
2. The indoor unit of air conditioner as claimed in claim 1, wherein a first fan (112) is disposed on a side of the heat exchanging device (111) away from the first air inlet (101), a second fan (121) is disposed in the second channel (120), and an air outlet of the second fan (121) is communicated with the air outlet (103).
3. The indoor unit of claim 1, wherein the body (100) is provided with a fresh air inlet (104) for introducing fresh air from outside, the first air inlet (101) is connected to the fresh air inlet (104), and fresh air and primary indoor return air are mixed to enter the heat exchanger (111).
4. The indoor unit of claim 1, wherein the air outlet (103) comprises:
the first air outlet (103) is movably provided with a first air outlet plate (1031) so as to close or open the first air outlet (103); and the number of the first and second groups,
the second air outlet (103) is movably provided with the second air outlet plate (1032) so as to close or open the second air outlet (103).
5. The indoor unit of air conditioner according to claim 4, wherein the first air outlet plate (1031) is provided with a first rotation shaft, and the first rotation shaft is driven by a first motor; and/or the second air outlet plate (1032) is provided with a second rotating shaft, and the second rotating shaft is driven by a second motor.
6. The indoor unit of air conditioner as claimed in claim 4, wherein the first air outlet (103) is provided with a first slide rail, and the first air outlet plate (1031) is driven by a first motor and slidably arranged on the first slide rail; and/or the second air outlet (103) is provided with a second sliding rail, and the second air outlet plate (1032) is driven by a second motor and is arranged on the second sliding rail in a sliding manner.
7. The indoor unit of claim 2, wherein the fresh air inlet (104) is provided with a first temperature sensor, the first air inlet (101) and/or the second air inlet (102) is provided with a second temperature sensor, the air outlet side of the heat exchanging device (111) is provided with a third temperature sensor, and the air outlet (103) is provided with a fourth temperature sensor.
8. An air conditioner control method applied to the indoor unit of an air conditioner as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
the air conditioner receives a starting signal;
the first air inlet (101), the second air inlet (102) and the air outlet (103) are opened;
the primary indoor return air enters the first channel (110) from the first air inlet (101), and the secondary indoor return air enters the second channel (120) from the second air inlet (102);
the primary indoor return air is subjected to heat exchange by the heat exchange device (111), then is mixed with the secondary indoor return air, and is discharged into the room from the air outlet (103).
9. The method of claim 8, wherein the first air inlet (101) and the second air inlet (102) are opened, the fresh air inlet (104) is opened synchronously, and the fresh air and the primary indoor return air are mixed to exchange heat together.
10. The method of claim 9, wherein after the air conditioner receives the turn-on signal, acquiring a mode signal:
if the air conditioner enters a refrigeration mode, the air outlet (103) exhausts air upwards;
if the heating mode is entered, the air outlet (103) exhausts air downwards;
if the air enters the ventilation mode, the air outlet (103) exhausts air upwards and downwards simultaneously.
11. The method of claim 8, wherein after the air conditioner receives the turn-on signal, acquiring a mode signal:
if the air conditioner enters a refrigeration mode, the temperature difference between the target refrigeration temperature and the indoor temperature is obtained, the target refrigeration temperature is lower than a first temperature difference threshold value, a second air inlet (102) is opened, and secondary indoor return air enters a second channel (120);
if the air conditioner enters a heating mode, the temperature difference between the target heating temperature and the indoor temperature is obtained, the target heating temperature is higher than a second temperature difference threshold value, a second air inlet (102) is opened, and secondary indoor return air enters a second channel (120);
if the ventilation mode is entered, the second air inlet (102) is closed, and the second passage (120) is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797577.XA CN113503586A (en) | 2021-07-14 | 2021-07-14 | Air conditioner indoor unit and air conditioner control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797577.XA CN113503586A (en) | 2021-07-14 | 2021-07-14 | Air conditioner indoor unit and air conditioner control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113503586A true CN113503586A (en) | 2021-10-15 |
Family
ID=78012788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110797577.XA Pending CN113503586A (en) | 2021-07-14 | 2021-07-14 | Air conditioner indoor unit and air conditioner control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113503586A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110979A (en) * | 2021-11-25 | 2022-03-01 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN114719338A (en) * | 2022-04-01 | 2022-07-08 | 美的集团武汉暖通设备有限公司 | Indoor unit, air conditioner and control method of indoor unit and air conditioner |
| CN115435480A (en) * | 2022-09-16 | 2022-12-06 | 珠海格力电器股份有限公司 | Control method and device of fresh air fan and fresh air fan |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083564A (en) * | 2001-09-11 | 2003-03-19 | Sharp Corp | Air conditioner |
| CN107477691A (en) * | 2017-09-12 | 2017-12-15 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN207146642U (en) * | 2017-09-12 | 2018-03-27 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN208332484U (en) * | 2018-06-01 | 2019-01-04 | 北京晶海科技有限公司 | A kind of air conditioner indoor unit of small temperature difference air-supply |
| CN110454902A (en) * | 2018-05-08 | 2019-11-15 | 北京秦海室内环境科技有限公司 | A kind of ventilation device heating refrigeration |
| CN110986174A (en) * | 2019-12-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN211177114U (en) * | 2019-10-09 | 2020-08-04 | 广东美的制冷设备有限公司 | Wall-mounted air conditioner indoor unit and air conditioner |
| CN112539538A (en) * | 2020-12-22 | 2021-03-23 | 珠海格力电器股份有限公司 | Air mixing device of air conditioner, air conditioner and air outlet control method and device of air conditioner |
-
2021
- 2021-07-14 CN CN202110797577.XA patent/CN113503586A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003083564A (en) * | 2001-09-11 | 2003-03-19 | Sharp Corp | Air conditioner |
| CN107477691A (en) * | 2017-09-12 | 2017-12-15 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN207146642U (en) * | 2017-09-12 | 2018-03-27 | 广东美的制冷设备有限公司 | Wall indoor unit and air conditioner |
| CN110454902A (en) * | 2018-05-08 | 2019-11-15 | 北京秦海室内环境科技有限公司 | A kind of ventilation device heating refrigeration |
| CN208332484U (en) * | 2018-06-01 | 2019-01-04 | 北京晶海科技有限公司 | A kind of air conditioner indoor unit of small temperature difference air-supply |
| CN211177114U (en) * | 2019-10-09 | 2020-08-04 | 广东美的制冷设备有限公司 | Wall-mounted air conditioner indoor unit and air conditioner |
| CN110986174A (en) * | 2019-12-04 | 2020-04-10 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN112539538A (en) * | 2020-12-22 | 2021-03-23 | 珠海格力电器股份有限公司 | Air mixing device of air conditioner, air conditioner and air outlet control method and device of air conditioner |
Non-Patent Citations (2)
| Title |
|---|
| 窦晓霞: "《建筑电气控制技术》", 30 November 2004 * |
| 胡松涛: "《2007注册公用设备工程师考试专业课精讲精练 暖通空调专业》", 31 May 2007 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114110979A (en) * | 2021-11-25 | 2022-03-01 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN114110979B (en) * | 2021-11-25 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner and control method |
| CN114719338A (en) * | 2022-04-01 | 2022-07-08 | 美的集团武汉暖通设备有限公司 | Indoor unit, air conditioner and control method of indoor unit and air conditioner |
| CN114719338B (en) * | 2022-04-01 | 2024-03-08 | 美的集团武汉暖通设备有限公司 | Indoor unit, air conditioner and control method of air conditioner |
| CN115435480A (en) * | 2022-09-16 | 2022-12-06 | 珠海格力电器股份有限公司 | Control method and device of fresh air fan and fresh air fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113503586A (en) | Air conditioner indoor unit and air conditioner control method | |
| CN205505262U (en) | Radiation air -conditioning system | |
| US20180335222A1 (en) | Air conditioner indoor unit | |
| CN206113179U (en) | Passive room air conditioning equipment | |
| CN102748810A (en) | Air conditioner indoor unit capable of supplying air up and down and control method thereof | |
| CN211903208U (en) | Air treatment equipment | |
| WO2020125165A1 (en) | Control method for double cross-flow air conditioner | |
| CN212081440U (en) | Fresh air conditioner | |
| JP2001090974A (en) | Air-conditioner | |
| CN107461829A (en) | Window air conditioner | |
| CN101158500A (en) | Office environment iris type individual air blow terminal device | |
| CN109595694A (en) | A kind of wall hanging fresh air, air conditioner integrated machine | |
| CN108332293A (en) | Cabinet air-conditioner and air conditioner | |
| CN207196710U (en) | Window air conditioner | |
| CN110906448A (en) | Double-through-flow air conditioner and control method thereof | |
| CN113280402A (en) | Indoor unit with zone control function and air conditioner | |
| WO2023246707A1 (en) | Vertical indoor air-conditioning unit | |
| CN209415686U (en) | A kind of fresh air conditioner system suitable for passive type pole low energy-consumption house | |
| CN215446646U (en) | Indoor air conditioner | |
| CN211854195U (en) | High and large space target area environment system | |
| CN205860212U (en) | Air-conditioner and air duct type air conditioning indoor machine thereof | |
| CN114992834A (en) | Air guide door device, air conditioner control method, control device and air conditioner | |
| CN209147255U (en) | Double through-flow air conditioner | |
| CN209386431U (en) | A kind of wall hanging fresh air, air conditioner integrated machine | |
| CN113091132A (en) | Double-air-outlet fresh air conditioner indoor unit, fresh air conditioner and control method of fresh air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211015 |
|
| RJ01 | Rejection of invention patent application after publication |