CN112325381A - Air conditioner indoor unit, control method and air conditioner - Google Patents
Air conditioner indoor unit, control method and air conditioner Download PDFInfo
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- CN112325381A CN112325381A CN202010975446.1A CN202010975446A CN112325381A CN 112325381 A CN112325381 A CN 112325381A CN 202010975446 A CN202010975446 A CN 202010975446A CN 112325381 A CN112325381 A CN 112325381A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004378 air conditioning Methods 0.000 claims abstract description 4
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000007599 discharging Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F1/0059—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
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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
- 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
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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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
- 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
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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
- 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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- 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
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides an air conditioner indoor unit, a control method and an air conditioner, wherein the air conditioner indoor unit comprises: the fan is arranged inside the shell and is a centrifugal fan, the shell comprises a first side face and a second side face which are oppositely arranged, the first side face and the second side face are opposite to the axis direction of the centrifugal fan, a first air inlet is formed in the first side face, and a second air inlet is formed in the second side face. According to the invention, the air inlet area is effectively increased, the air volume of the whole machine can be effectively improved, the heat cycle and the cold cycle of a room are accelerated, the air conditioning efficiency is improved, the power consumption is reduced, and the refrigerating and heating effects of the indoor unit are improved; the two air inlets are respectively arranged on the upper side surface and the lower side surface, so that the function of air inlet of the air conditioner can be effectively realized, and the air inlet volume of the air conditioner can be remarkably improved by the double air inlets.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit, a control method and an air conditioner.
Background
The wall-mounted air conditioner usually adopts a single cross flow as a main fan system and consists of a single air inlet and a single air outlet, and has the problems of filthy blockage of a filter screen of the air inlet, large dust falling resistance of an evaporator, small air outlet quantity, single air outlet direction and angle and the like.
In recent years, some manufacturers propose that the double cross-flow fans are adopted to realize the partitioned air supply function of the wall-mounted unit, but the problems that the size of the whole unit is large and the appearance is not in accordance with the aesthetic sense of the public are caused, and meanwhile, due to the air outlet characteristics of the cross-flow fans, the phenomena of insufficient heating capacity or limited air supply range and the like still exist.
Patent CN110056967A proposes that a partition air supply function is realized by adopting a double-centrifugal backward air inlet and forward air supply mode, but it is obvious that the layout mode causes the problem of too small air inlet area; the patent CN207936297U proposes a wall-mounted unit using dual centrifugal hidden air outlets to supply air in different zones, which has the problems of insufficient heat exchange and insufficient air volume caused by too small distance between the evaporator and the fan; patent CN103162353A proposes the hanging machine that adopts single motor cooperation transmission case device drive two centrifugal fan to realize multidirectional air supply, and there is the energy waste in its scheme, can't realize the problem of target air supply, and heat transfer area undersize, probably leads to the problem that refrigeration, heating capacity are not enough.
Because many air inlet of the air conditioner indoor unit in the prior art are concentrated on one side, the air inlet area is small, and the performance of a fan cannot be effectively utilized; meanwhile, the air outlet is single, so that the air outlet direction is single, the indoor airflow strength is clear, the heat exchange in the whole room is uneven, and the temperature gradient of each area is obvious.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is mainly to overcome the defects that the air conditioner indoor unit in the prior art has the defects that the air inlet is concentrated on one side, the air inlet area is small, and the performance of the fan cannot be effectively utilized, so that the air conditioner indoor unit, the control method and the air conditioner are provided.
In order to solve the above problems, the present invention provides an indoor unit of an air conditioner, including:
the fan is arranged inside the shell and is a centrifugal fan, the shell comprises a first side face and a second side face which are oppositely arranged, the first side face and the second side face are opposite to the axis direction of the centrifugal fan, a first air inlet is formed in the first side face, and a second air inlet is formed in the second side face.
Preferably, the first side surface is located on an upper end surface of the housing, and the second side surface is located on a lower end surface of the housing.
Preferably, the air conditioner further comprises a volute, the fan is arranged inside the volute, the volute is arranged inside the shell and comprises a volute air outlet, the shell comprises a third side surface, a main air outlet is formed in the third side surface, and the volute air outlet and the main air outlet are arranged oppositely.
Preferably, the third side surface is a side surface located in a horizontal direction of the housing; and/or, the shell further comprises an auxiliary air inlet, the shell further comprises a fourth side surface arranged opposite to the wall, and the auxiliary air inlet is formed in the fourth side surface; and/or, still include supplementary air outlet, supplementary air outlet set up in on the second side.
Preferably, the centrifugal fan comprises a first centrifugal fan and a second centrifugal fan, the volute comprises a first volute and a second volute, the first centrifugal fan is arranged inside the first volute, and the second centrifugal fan is arranged inside the second volute; the first centrifugal fan and the second centrifugal fan rotate in opposite directions.
Preferably, the centrifugal fan further comprises a first motor and a second motor, wherein the first motor is connected with the first centrifugal fan and drives the first centrifugal fan independently, and the second motor is connected with the second centrifugal fan and drives the second centrifugal fan independently.
Preferably, the heat exchanger is arranged in the shell and comprises a first heat exchanger and a second heat exchanger, the first heat exchanger is arranged between the first side face and the fan, and the second heat exchanger is arranged between the second side face and the fan.
Preferably, when the first side surface is an upper end surface, the first heat exchanger is a heat exchanger with a vertical section in a V shape or a heat exchanger with a vertical section in a W shape, a V port of the V-shaped heat exchanger faces upward, and a W port of the W-shaped heat exchanger faces upward.
Preferably, when the first heat exchanger is a heat exchanger with a V-shaped longitudinal section, the V-shaped heat exchanger includes a first straight plate section and a second straight plate section, and an included angle between the first straight plate section and a horizontal plane is greater than or equal to 35 °, and an included angle between the second straight plate section and the horizontal plane is greater than or equal to 35 °.
Preferably, when the first side surface is an upper end surface, the first heat exchanger is an inclined straight-plate heat exchanger, an inclination angle between a longitudinal section of the inclined straight-plate heat exchanger and a horizontal plane is 0-90 degrees, and one end of the inclined straight-plate heat exchanger facing downwards is located on one side of the horizontal direction of the fan and is not located above the fan.
Preferably, the second heat exchanger is a horizontally arranged straight plate heat exchanger, and a longitudinal section of the horizontally arranged straight plate heat exchanger extends along the horizontal direction.
Preferably, a first air inlet cover plate is further arranged at the first air inlet, and/or a second air inlet cover plate is further arranged at the second air inlet; and/or an air deflector is arranged at the main air outlet.
The invention also provides a control method of the air conditioner indoor unit, wherein the control method comprises the following steps:
when including first air inlet apron, second air inlet apron and aviation baffle simultaneously, just first air intake is last air intake and when the second air intake is lower air intake:
when the air conditioner is operated in a refrigeration mode, the first air inlet cover plate is controlled to be closed, the second air inlet cover plate is controlled to be opened, and the air deflector is controlled to guide air upwards;
when the air conditioner operates in the heating mode, the first air inlet cover plate is controlled to be opened, the second air inlet cover plate is controlled to be closed, and the air deflector is controlled to guide air downwards.
The invention also provides an air conditioner which comprises the air conditioner indoor unit.
The invention provides an air conditioner indoor unit, a control method and an air conditioner, which have the following beneficial effects:
1. according to the invention, the centrifugal fan is used as an air supply assembly of the air conditioner, and the air inlets are arranged on the two side surfaces of the shell opposite to the axis of the centrifugal fan in a matched manner, so that compared with the structural form that the air inlets are arranged on one side surface in the prior art, the air inlet area is effectively increased, the air quantity of the whole machine can be effectively improved, the heat cycle and the cold cycle of a room are accelerated, the air conditioning efficiency is improved, the power consumption is reduced, and the refrigerating and heating effects of the indoor unit are improved; the two air inlets are respectively arranged on the upper side surface and the lower side surface, so that the function of air inlet of the air conditioner can be effectively realized, and the air inlet amount of the air conditioner can be obviously increased by the double air inlets; the invention utilizes the characteristics of large air pressure, high air quantity, high speed and the like of the centrifugal fan, and is provided with the independently controlled controller component, so that the air outlet quantity and the air outlet direction of the air conditioner can be more flexibly controlled, the air conditioner has large-range and large-angle partitioned air supply effect, the indoor rapid temperature rise/temperature drop is realized, the size of the whole machine can be effectively controlled, and the purposes of attractiveness and high efficiency are achieved.
2. The invention utilizes the characteristics of large pressure, high air quantity, high speed and the like of the double-suction centrifugal fan, can increase the air supply distance and realize the effects of quick temperature rise and temperature drop; the double centrifugal fans are controlled by the two motors independently, the air supply area of the air inlet is wide, the effects of directional zoned air supply and targeted air supply can be realized, and the comfort is improved; the problem of overlarge resistance of an evaporator and the dust deposition resistance of a filter screen can be effectively solved by utilizing the characteristic of large static pressure of a centrifugal fan; the double centrifugal fans have the characteristics of large pressure and large air volume, can effectively reduce the size of the whole machine while meeting the target air volume, and achieve the purposes of high performance, high efficiency and attractive appearance;
3. according to the invention, the first heat exchanger is arranged above the fan and is arranged into the V-shaped heat exchanger or the W-shaped heat exchanger, the V-shaped opening faces upwards, and the W-shaped opening faces upwards, so that condensed water formed by condensation of air flow through the evaporator can be effectively collected, and the condensed water is prevented from dropping into the fan to cause potential safety hazards; the first heat exchanger is arranged to be an inclined heat exchanger, one end of the inclined heat exchanger extends into one horizontal side of the fan and is not positioned above the fan, condensed water can be effectively guided to the edge of the fan to fall down, and potential safety hazards caused by the fact that the condensed water enters the fan are effectively prevented; in addition, the included angle between the two straight sections of the V-shaped heat exchanger and the horizontal direction is more than 35 degrees, so that the water dripping and ash dropping of the evaporator into the fan can be effectively avoided, and the safe operation of the fan is ensured.
Drawings
FIG. 1 is a schematic view of the structure of the indoor unit of the air conditioner;
FIG. 2 is a top view structural view of a fan part of an indoor unit of an air conditioner according to the present invention;
fig. 3 is a left side view of the indoor unit of the air conditioner in fig. 1;
fig. 4 is a structural view of an upper end heat exchanger in the indoor unit of the air conditioner in fig. 1;
fig. 5 is a schematic exploded view of an indoor unit of an air conditioner according to the present invention.
The reference numerals are represented as:
1. a housing; 11. a first side surface; 12. a second side surface; 13. a third side; 14. a fourth side; 15. A rear cover plate; 2. a fan; 21. a first centrifugal fan; 22. a second centrifugal fan; 31. a first air inlet; 32. a second air inlet; 4. a volute; 41. a first volute; 42. a second volute; 43. a volute air outlet; 5. a main air outlet; 51. a first motor; 52. a second motor; 6. a heat exchanger; 61. a first heat exchanger; 62. a second heat exchanger; 7. and a control component.
Detailed Description
As shown in fig. 1 to 5, the present invention provides an indoor unit of an air conditioner, including:
casing 1 and fan 2, fan 2 set up in the inside of casing 1, just fan 2 is centrifugal fan, casing 1 is including relative first side 11 and the second side 12 that sets up, just first side 11 with second side 12 all with centrifugal fan's axis direction is relative and sets up, and first air intake 31 has been seted up on first side 11, second air intake 32 has been seted up on second side 12. According to the invention, the centrifugal fan is used as an air supply assembly of the air conditioner, and the air inlets are arranged on the two side surfaces of the shell opposite to the axis of the centrifugal fan in a matched manner, so that compared with the structural form that the air inlets are arranged on one side surface in the prior art, the air inlet area is effectively increased, the air quantity of the whole machine can be effectively improved, the heat cycle and the cold cycle of a room are accelerated, the air conditioning efficiency is improved, the power consumption is reduced, and the refrigerating and heating effects of the indoor unit are improved; the two air inlets are respectively arranged on the upper side surface and the lower side surface, so that the function of air inlet of the air conditioner can be effectively realized, and the air inlet amount of the air conditioner can be obviously increased by the double air inlets; the invention utilizes the characteristics of large air pressure, high air quantity, high speed and the like of the centrifugal fan, and is provided with the independently controlled controller component, so that the air outlet quantity and the air outlet direction of the air conditioner can be more flexibly controlled, the air conditioner has large-range and large-angle partitioned air supply effect, the indoor rapid temperature rise/temperature drop is realized, the size of the whole machine can be effectively controlled, and the purposes of attractiveness and high efficiency are achieved.
Aiming at the defects in the background technology, the invention provides the method for realizing the functions of zone air supply and targeted air supply by adopting the double centrifugal fans which are independently controlled, the centrifugal fans have the advantages of large air quantity, high air speed and large pressure and are beneficial to greatly reducing the length and the thickness of the whole machine, the area of an air inlet can be effectively increased by adopting a mode of air inlet from top to bottom and air outlet from front, the large suction force of the double centrifugal fans can overcome the resistance of a filter screen and an evaporator to improve the air quantity of the whole machine, in addition, the air quantity can be greatly improved by matching the double heat exchangers, the refrigeration and heating effects can be improved, meanwhile, the evaporator can adopt different types of combination, and the size.
The invention provides an air conditioner with upper and lower air inlets and front air outlet, which comprises: the air conditioner comprises a shell, a double-suction centrifugal fan part, an evaporator, a controller part and an air inlet and an air outlet. The front side of the shell is provided with an air outlet and is communicated with outlets of two double-suction centrifugal fan volutes to form a front air outlet, the upper side and the lower side of the shell are respectively provided with an air inlet to provide air inlet flow for the double-suction centrifugal impeller, the fan component consists of the double-suction centrifugal impeller and the volutes, the double-suction centrifugal impeller is provided with a middle partition plate in the vertical direction of the impeller to ensure that the impeller is divided into the left side and the right side, air inlet at the upper side and the lower side is realized in the rotating process of the impeller, the controller component is arranged at the right side of the fan component to realize independent and accurate control of the fan component, a V-shaped heat exchanger is arranged between the upper air outlet and the fan; the specific implementation is as follows:
in the above figure, a main air outlet 5 is provided on the front surface of the housing 1, the main air outlet 5 is communicated with outlets of a first volute 41 of the first centrifugal fan and a second volute 42 of the second centrifugal fan, meanwhile, an upper air inlet (a first air inlet 31) and a lower air inlet (a second air inlet 32) are provided on the upper and lower sides of the housing, respectively, air flows enter from the upper air inlet and the lower air inlet, respectively, enter the first centrifugal fan 21 and the second centrifugal fan 22 after passing through an upper evaporator (a first heat exchanger 61) and a lower evaporator (a second heat exchanger 62), and pressurize and accelerate the air flows under the combined action of the first volute 41 of the first centrifugal fan and the second volute 42 of the second centrifugal fan, so that the air flows out at the air outlet.
Preferably, the first side surface 11 is located at an upper end surface of the housing 1, and the second side surface 12 is located at a lower end surface of the housing 1. The air conditioner is provided with two air inlets, and the two air inlets are arranged on the upper end face of the shell and the lower end face of the shell.
Preferably, the air conditioner further comprises a volute 4, the fan 2 is disposed inside the volute 4, the volute 4 is disposed inside the housing 1, the volute 4 includes a volute air outlet 43, the housing 1 includes a third side surface 13, a main air outlet 5 is disposed on the third side surface 13, and the volute air outlet 43 and the main air outlet 5 are disposed oppositely. Can carry out effectual injecing, improvement wind pressure to the wind channel of fan through the spiral case, main air outlet on the casing sets up with spiral case air outlet relatively for the air current that the spiral case air-out blew off effectively blows off from main air outlet, reduces the angle of buckling of air current, reduces the air current energy loss.
Preferably, the third side 13 is a side located in the horizontal direction of the housing 1; and/or, the air conditioner further comprises an auxiliary air inlet, the housing 1 further comprises a fourth side surface 14 arranged opposite to the wall, and the auxiliary air inlet is formed in the fourth side surface 14; and/or, the air conditioner also comprises an auxiliary air outlet which is arranged on the second side surface 12. The main air outlet is arranged on the third side face of the air conditioner, so that the main air outlet can be used for horizontally discharging air (preferably discharging air towards the front side), the effects of discharging air from the upper part and the lower part and discharging air from the front side are realized, and the air quantity is improved; the air inlet area can be further increased through the auxiliary air inlet arranged on the fourth side surface opposite to the wall, and the air quantity of the whole machine is improved; the air outlet area can be further increased through the auxiliary air outlet arranged on the lower end face, and the air quantity of the whole machine is improved.
The front air port of the air conditioner consists of double outlets of double centrifugal fans, so that the partition air supply can be realized by controlling the operation of the fans and the deviation action of the air guide plates, and meanwhile, the flowing distance of air flow in a room is increased, so that the heat exchange of the room is more sufficient.
Preferably, the centrifugal fan comprises a first centrifugal fan 21 and a second centrifugal fan 22, the volute 4 comprises a first volute 41 and a second volute 42, the first centrifugal fan 21 is arranged inside the first volute 41, and the second centrifugal fan 22 is arranged inside the second volute 42; the first centrifugal fan 21 and the second centrifugal fan 22 rotate in opposite directions. The invention adopts the structure of double centrifugal fans and two centrifugal fans with opposite rotating directions, which can meet the requirements of different users in the same room, thereby realizing individualized and differential air supply. According to the air flow characteristic of the centrifugal fan, the air outlet angle is large, the coverage range is wide, and therefore wide-angle air supply can be achieved.
It is further preferable that the first centrifugal fan 21 and the second centrifugal fan 22 are arranged side by side in a horizontal direction, and a partition plate is disposed between the first centrifugal fan 21 and the second centrifugal fan 22.
Preferably, the centrifugal fan system further includes a first motor 51 and a second motor 52, the first motor 51 is connected to the first centrifugal fan 21 to independently drive the first centrifugal fan 21, and the second motor 52 is connected to the second centrifugal fan 22 to independently drive the second centrifugal fan 22. The invention is the preferred structural form for realizing independent driving of the two centrifugal fans and individualized air supply according to the needs, the two motors independently drive the two centrifugal fans to independently operate, and the air can be blown to the left, to the right and to the left and right simultaneously according to the needs. Through mutually independent fan control system, can realize the independent regulation of fan parameter according to user's demand to reach energy-conserving effect, for example: when a user is in the left half area of the room, the left fan can be correspondingly and independently started, the targeted air supply function is realized, and cold/heat brought by airflow is fully utilized.
Preferably, the heat exchanger 6 is further included, the heat exchanger 6 is disposed inside the housing 1, the heat exchanger 6 includes a first heat exchanger 61 and a second heat exchanger 62, the first heat exchanger 61 is disposed between the first side surface 11 and the fan 2, and the second heat exchanger 62 is disposed between the second side surface 12 and the fan 2. Because the air inlets in two directions (preferably, the air inlets are arranged up and down), the heat exchanger is required to be arranged between the volute bodies entering the centrifugal fan, the airflow entering the first air inlet enters the centrifugal fan after heat exchange through the first heat exchanger and is blown out, the airflow entering the second air inlet enters the centrifugal fan after heat exchange through the second heat exchanger and is blown out, the heat exchange area is increased, and the heat exchange effect is improved.
Preferably, when the first side surface 11 is an upper end surface, the first heat exchanger 61 is a heat exchanger with a vertical section in a "V" shape or a heat exchanger with a vertical section in a "W" shape, a "V" port of the "V" shaped heat exchanger faces upward, and a "W" port of the "W" shaped heat exchanger faces upward. According to the invention, the first heat exchanger is arranged above the fan and is arranged into the V-shaped heat exchanger or the W-shaped heat exchanger, the V-shaped opening faces upwards, and the W-shaped opening faces upwards, so that condensed water formed by condensation of air flow through the evaporator can be effectively collected, and the condensed water is prevented from dropping into the fan to cause potential safety hazards.
Preferably, the first and second electrodes are formed of a metal,
when the first heat exchanger 61 is a heat exchanger with a V-shaped longitudinal section, the V-shaped heat exchanger includes a first straight plate section and a second straight plate section, and an included angle between the first straight plate section and a horizontal plane is greater than or equal to 35 °, and an included angle between the second straight plate section and the horizontal plane is greater than or equal to 35 °. The invention also can further effectively avoid the evaporator from dripping water and dropping ash into the fan by setting the included angle between the two straight sections of the V-shaped heat exchanger and the horizontal direction to be more than 35 degrees, thereby ensuring the safe operation of the fan.
Because the upper evaporator of the air conditioner has the hidden danger of a condensed water dropping air inlet machine and an ash deposition dropping air inlet machine, the evaporator is subjected to water dripping and ash falling experiments under different angles alpha, according to the test result, when the inclination angle alpha of the evaporator is smaller than 28 degrees, the phenomenon of water dripping and ash falling of the evaporator is serious, when the inclination angle alpha of the evaporator is between 28 degrees and 30 degrees, the phenomenon of water dripping and ash falling is more, when the inclination angle alpha of the evaporator is between 30 degrees and 33 degrees, the phenomenon of water dripping and ash falling is a small amount, and when the inclination angle alpha of the evaporator is larger than 35 degrees, the phenomenon of water dripping and ash falling does not occur, so the inclination angle alpha of the upper evaporator must be larger than or equal to 35 degrees, the factor of shortening the size of the whole machine is considered, the angle alpha of the upper evaporator is preferably 35 degrees, and the effects of water dripping and ash falling are better.
Preferably, when the first side surface 11 is an upper end surface, the first heat exchanger 61 is an inclined straight-plate heat exchanger, a longitudinal section of the inclined straight-plate heat exchanger forms an inclination angle of 0-90 ° with a horizontal plane, and one end of the inclined straight-plate heat exchanger facing downwards is located on one side of the horizontal direction of the fan 2 and is not located above the fan 2. The first heat exchanger is arranged to be an inclined heat exchanger, one end of the inclined heat exchanger extends into one side of the horizontal position of the fan and is not located above the fan, and therefore condensate water can be effectively guided to the edge of the fan to fall down and potential safety hazards caused by the fact that the condensate water enters the fan can be effectively prevented.
Preferably, the second heat exchanger 62 is a horizontally arranged straight plate heat exchanger, and a longitudinal section of the horizontally arranged straight plate heat exchanger extends along a horizontal direction. The heat exchanger below the fan is not hidden danger that condensed water falls into the fan, so that the heat exchanger is designed into a horizontally arranged straight plate heat exchanger, the heat exchange area can be increased, and the heat exchange effect is improved.
Preferably, a first air inlet cover plate is further arranged at the first air inlet 31, and/or a second air inlet cover plate is further arranged at the second air inlet 32; and/or an air deflector is arranged at the main air outlet 5. The air inlet cover plates arranged at different air inlets can be used for closing the air inlet cover plates when the air conditioner is shut down, two air inlet cover plates or only one air inlet cover plate is selected to be opened according to different operation modes when the air conditioner is started up, air can be blown downwards when the air conditioner is cooled, the air inlet cover plate at the lower end closes the air inlet at the lower end, air is only fed through the upper air inlet, the backflow phenomenon at the lower end is prevented, the air is blown upwards when the air conditioner is heated, the air inlet cover plate at the upper end closes the upper air inlet, air is fed through the lower air inlet, and the.
When the air conditioner needs the operation mode of the small air quantity, the operation of a single centrifugal fan can be controlled through the controller component, meanwhile, the cover plates of the upper air opening and the lower air opening can be opened by selecting one side, the air conditioner can save energy consumption when meeting the small air quantity, when the air conditioner needs the operation mode of the large air quantity, the high-speed operation of the two centrifugal fans is controlled through the controller, the large air quantity of the air conditioner is met, meanwhile, the air inlet cover plates of the air openings on the upper side and the lower side are fully opened, the requirement of the large air inlet area is met, meanwhile, the air outlet of the double air outlets of the double centrifugal fans can achieve the surrounding air supply effect, the comfort is improved, and the purposes of rapid temperature rise and temperature drop can be achieved by utilizing the advantage.
The invention also provides a control method of the air conditioner indoor unit, wherein the control method comprises the following steps:
when including first air inlet apron, second air inlet apron and aviation baffle simultaneously, just first air intake 31 is last air intake, and when the second air intake is lower air intake:
when the air conditioner is operated in a refrigeration mode, the first air inlet cover plate is controlled to be closed, the second air inlet cover plate is controlled to be opened, and the air deflector is controlled to guide air upwards;
when the air conditioner operates in the heating mode, the first air inlet cover plate is controlled to be opened, the second air inlet cover plate is controlled to be closed, and the air deflector is controlled to guide air downwards.
The first air inlet 31 and/or the second air inlet 32 are further provided with an air inlet cover plate. Can open the air inlet when the air inlet, close the air intake when shutting down through the air inlet apron, prevent that impurity from getting into.
Because the air conditioner is provided with the upper air inlet and the lower air inlet, the upper air inlet can be selected to be opened singly in the heating mode, after the airflow is blown out from the front air outlet, the airflow is guided and deflected to the ground by the air deflector, the lower air inlet is closed, the phenomenon that the airflow is sucked back at the lower air inlet to form backflow can be avoided, and the hot air is sucked in from the upper air inlet after falling to the ground, so that the large thermal circulation of the whole space can be realized, and the heating carpet type air supply effect is achieved; and under the refrigeration mode, the lower air inlet can be selected to be opened singly, at the moment, the airflow can be guided and deflected upwards under the action of the air deflector after being blown out from the front air outlet, the upper air inlet is closed at the moment, the back suction of the air outlet airflow can be avoided as well, the influence of the back flow is reduced, when the cold air falls from top to bottom, the inlet air of the lower air inlet can accelerate the falling of the cold air, the large cold circulation of the whole space is realized, and the shower type air supply effect is achieved.
The invention also provides an air conditioner which comprises the air conditioner indoor unit.
The invention adopts the double centrifugal fans as the air supply components of the air conditioner, and simultaneously the centrifugal fans carry the double-suction centrifugal impeller, thereby realizing the function of air inlet of the air conditioner from top to bottom, the double air inlets can obviously improve the air inlet volume of the air conditioner, and the large suction force of the double-suction centrifugal fans can effectively overcome the resistance of the filter screen and the evaporator so as to improve the air volume of the air conditioner.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (14)
1. An air conditioning indoor unit, characterized in that: the method comprises the following steps:
casing (1) and fan (2), fan (2) set up in the inside of casing (1), just fan (2) are centrifugal fan, casing (1) is including relative first side (11) and the second side (12) that set up, just first side (11) with second side (12) all with centrifugal fan's axis direction sets up relatively, and first air intake (31) have been seted up on first side (11), second air intake (32) have been seted up on second side (12).
2. An indoor unit of an air conditioner according to claim 1, wherein:
the first side surface (11) is located on the upper end surface of the shell (1), and the second side surface (12) is located on the lower end surface of the shell (1).
3. An indoor unit of an air conditioner according to claim 1, wherein:
still include spiral case (4), fan (2) set up in inside spiral case (4), spiral case (4) set up in the inside of casing (1), just spiral case (4) include spiral case air outlet (43), casing (1) includes third side (13), main air outlet (5) have been seted up on third side (13), spiral case air outlet (43) with main air outlet (5) set up relatively.
4. An indoor unit of an air conditioner according to claim 3, wherein:
the third side surface (13) is a side surface positioned in the horizontal direction of the shell (1); and/or the shell further comprises an auxiliary air inlet, the shell (1) further comprises a fourth side surface (14) arranged opposite to the wall, and the auxiliary air inlet is formed in the fourth side surface (14); and/or the air conditioner also comprises an auxiliary air outlet which is arranged on the second side surface (12).
5. An indoor unit of an air conditioner according to claim 3, wherein:
the centrifugal fan comprises a first centrifugal fan (21) and a second centrifugal fan (22), the volute (4) comprises a first volute (41) and a second volute (42), the first centrifugal fan (21) is arranged inside the first volute (41), and the second centrifugal fan (22) is arranged inside the second volute (42); the first centrifugal fan (21) and the second centrifugal fan (22) are opposite in rotation direction.
6. An indoor unit of an air conditioner according to claim 5, wherein:
the centrifugal fan is characterized by further comprising a first motor (51) and a second motor (52), wherein the first motor (51) is connected with the first centrifugal fan (21) and drives the first centrifugal fan (21) independently, and the second motor (52) is connected with the second centrifugal fan (22) and drives the second centrifugal fan (22) independently.
7. An indoor unit of an air conditioner according to any one of claims 1 to 6, wherein:
the heat exchanger (6) is arranged inside the shell (1), the heat exchanger (6) comprises a first heat exchanger (61) and a second heat exchanger (62), the first heat exchanger (61) is arranged between the first side face (11) and the fan (2), and the second heat exchanger (62) is arranged between the second side face (12) and the fan (2).
8. An indoor unit of an air conditioner according to claim 7, wherein:
when the first side surface (11) is an upper end surface, the first heat exchanger (61) is a heat exchanger with a V-shaped longitudinal section or a heat exchanger with a W-shaped longitudinal section, a V-shaped opening of the V-shaped heat exchanger faces upwards, and a W-shaped opening of the W-shaped heat exchanger faces upwards.
9. An indoor unit of an air conditioner according to claim 8, wherein:
when the first heat exchanger (61) is a heat exchanger with a V-shaped longitudinal section, the V-shaped heat exchanger comprises a first straight plate section and a second straight plate section, an included angle between the first straight plate section and the horizontal plane is larger than or equal to 35 degrees, and an included angle between the second straight plate section and the horizontal plane is larger than or equal to 35 degrees.
10. An indoor unit of an air conditioner according to claim 7, wherein:
when the first side surface (11) is an upper end surface, the first heat exchanger (61) is an inclined straight plate heat exchanger, an inclination angle between the longitudinal section of the inclined straight plate heat exchanger and the horizontal plane is 0-90 degrees, and one end, facing downwards, of the inclined straight plate heat exchanger is located on one side of the horizontal direction of the fan (2) and is not located above the fan (2).
11. An indoor unit of an air conditioner according to any one of claims 8 to 10, wherein:
the second heat exchanger (62) is a horizontally arranged straight plate heat exchanger, and the longitudinal section of the horizontally arranged straight plate heat exchanger extends along the horizontal direction.
12. An indoor unit of an air conditioner according to any one of claims 3 to 6, wherein:
a first air inlet cover plate is arranged at the first air inlet (31), and/or a second air inlet cover plate is arranged at the second air inlet (32); and/or an air deflector is arranged at the main air outlet (5).
13. A control method of an indoor unit of an air conditioner according to claim 12, wherein:
when including first air inlet apron, second air inlet apron and aviation baffle simultaneously, just first air intake (31) are last air intake, and when the second air intake is lower air intake:
when the air conditioner is operated in a refrigeration mode, the first air inlet cover plate is controlled to be closed, the second air inlet cover plate is controlled to be opened, and the air deflector is controlled to guide air upwards;
when the air conditioner operates in the heating mode, the first air inlet cover plate is controlled to be opened, the second air inlet cover plate is controlled to be closed, and the air deflector is controlled to guide air downwards.
14. An air conditioner, characterized in that: an indoor unit of an air conditioner comprising any one of claims 1 to 12.
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| CN202010975446.1A CN112325381A (en) | 2020-09-16 | 2020-09-16 | Air conditioner indoor unit, control method and air conditioner |
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| CN202010975446.1A CN112325381A (en) | 2020-09-16 | 2020-09-16 | Air conditioner indoor unit, control method and air conditioner |
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| CN112944455A (en) * | 2021-02-09 | 2021-06-11 | 格力电器（武汉）有限公司 | Machine and air conditioner in air conditioning |
| CN114110778A (en) * | 2021-11-10 | 2022-03-01 | 珠海格力电器股份有限公司 | Wall-mounted air conditioner and control method |
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