CN107477677B - Air conditioner indoor unit and air conditioner - Google Patents
Air conditioner indoor unit and air conditioner Download PDFInfo
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- CN107477677B CN107477677B CN201710743172.1A CN201710743172A CN107477677B CN 107477677 B CN107477677 B CN 107477677B CN 201710743172 A CN201710743172 A CN 201710743172A CN 107477677 B CN107477677 B CN 107477677B
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- air conditioner
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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
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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
- F24F1/0025—Cross-flow or tangential 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
- F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
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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
- F24F13/02—Ducting arrangements
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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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises cross-flow fan blades and an air duct, the air duct is provided with an air duct air outlet, and the air duct air outlet comprises an upper guide wall and a lower guide wall; on the cross section of the cross-flow fan blade: the cross-flow fan blade is provided with a fan blade center, the upper edge of the inner side of the upper guide wall is defined as a first end, and the lower edge of the inner side of the lower guide wall is defined as a second end; the fan blade center is connected with the first end to form a first connecting line, the fan blade center is connected with the second end to form a second connecting line, and a first included angle a is formed between the first connecting line and the second connecting line; defining that the minimum distance between the air duct and the center of the fan blade is positioned at the intersection point on the air duct, connecting the center of the fan blade with the intersection point to form a third connecting line, connecting the center of the fan blade with the first end and the second end to form a fourth connecting line, and arranging the third connecting line and the fourth connecting line to form a second included angle b, wherein a/b=0.35-0.58. The invention can make the cross-flow fan blade arranged at a proper position in the air duct, reduce noise of the indoor unit to the greatest extent and improve the running performance of the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner indoor unit and an air conditioner.
Background
The prior cabinet air conditioner mainly focuses on technical improvement and innovation in the aspects of refrigeration and heating performance, but neglects the effects of air quantity, noise and the like of an air conditioner, so that the cabinet air conditioner is high in noise, poor in air conditioner tone quality and comfort level affecting indoor environment in the running process.
Because the cabinet air conditioner in the prior art has the technical problems of high noise and the like in the operation process, the invention designs the indoor air conditioner and the air conditioner.
Disclosure of Invention
Therefore, the invention aims to overcome the defect of loud noise in the running process of the vertical cabinet air conditioner in the prior art, thereby providing an air conditioner indoor unit and an air conditioner.
The invention provides an air conditioner indoor unit, which comprises cross-flow fan blades and an air duct, wherein the air duct is provided with an air duct air outlet, and the air duct air outlet comprises an upper guide wall and a lower guide wall;
on the cross section of the cross-flow fan blade:
the cross-flow fan blade is provided with a fan blade center, the upper edge of the inner side of the upper guide wall is defined as a first end, the lower edge of the inner side of the lower guide wall is defined as a second end, and the lower edge of the inner side of the lower guide wall is the position on the lower guide wall, which is the shortest away from the upper guide wall;
the fan blade center is connected with the first end to form a first connecting line, the fan blade center is connected with the second end to form a second connecting line, and a first included angle a is formed between the first connecting line and the second connecting line in a clamping way;
defining the point with the smallest space between the air duct and the center of the fan blade as an intersection point, connecting the center of the fan blade with the intersection point to form a third connecting line, connecting the first end with the second end to form a fourth connecting line, sandwiching a second included angle b between the third connecting line and the fourth connecting line,
and the first included angle a and the second included angle b meet the following relation: a/b=0.35 to 0.58.
Preferably, the first included angle a and the second included angle b also satisfy the relationship: b-a=25.1° to 45.1 °.
Preferably, the value range of the first included angle a is: 24.4-34.4 degrees.
Preferably, the value range of the second included angle b is: 59.5-69.5 deg..
Preferably, the intersection point is located closer to the lower guide wall than to the upper guide wall.
Preferably, the air conditioner further comprises an evaporator, and the air duct is arranged at a position between the evaporator and the cross-flow fan blade.
Preferably, the length of the through-flow fan blade is L1, the length of the air outlet of the air duct is L2, the length of the evaporator is L3, and the through-flow fan blade has L1/l2=0.97-1.09, and L1/l3=0.87-1.01.
Preferably, the length L2 of the air outlet of the air duct and the length L1 of the cross-flow fan blade further satisfy the following relation: l1—l2=15 to 25mm.
Preferably, the length L3 of the evaporator and the length L1 of the through-flow fan blade also satisfy the relationship: l3—l1=40 to 50mm.
The invention also provides an air conditioner: which comprises the air conditioner indoor unit.
The air conditioner indoor unit and the air conditioner provided by the invention have the following beneficial effects:
according to the air conditioner indoor unit and the air conditioner, the center of the fan blade is respectively connected with the upper edge (the first end) of the upper guide wall and the lower edge (the second end) of the inner side of the lower guide wall, so that a first included angle formed by clamping the center of the fan blade, an intersection point of the minimum distance between the center of the fan blade and the air duct and the center of the fan blade form a second included angle formed by clamping the connecting line with the connecting line of the first end and the connecting line of the second end, and the relationship of a/b=0.35-0.58 is met by setting the two included angles, so that the cross-flow fan blade can be arranged at a proper position in the air duct, the air outlet noise and the air flow noise of the indoor unit can be reduced to the greatest extent, and the running performance of the air conditioner indoor unit and even the air conditioner is improved.
Drawings
Fig. 1 is a schematic view showing an internal cross-sectional structure of an indoor unit of an air conditioner according to the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 with a first angle a and a second angle b;
fig. 3 is a schematic three-dimensional perspective view of an indoor unit of an air conditioner according to the present invention;
fig. 4 is a schematic front view of a cross-flow fan blade of an indoor unit of an air conditioner according to the present invention;
FIG. 5 is a schematic diagram showing the front structure of an air duct outlet of an indoor unit of an air conditioner according to the present invention;
fig. 6 is a schematic front view of an evaporator of an indoor unit of an air conditioner according to the present invention.
The reference numerals in the drawings are as follows:
1. an upper guide wall; 11. an air outlet of the air duct; 12. a first end; 13. an intersection point; 2. a lower guide wall; 21. a second end; 3. through-flow fan blades; 31. the center of the fan blade; 4. an evaporator; 5. an air inlet panel.
Detailed Description
As shown in fig. 1-3, the invention provides an air conditioner indoor unit, which comprises a cross-flow fan blade 3 and an air duct, wherein the air duct is provided with an air duct air outlet 11, and the air duct air outlet 11 comprises an upper guide wall 1 and a lower guide wall 2;
on the cross section of the cross-flow fan blade 3:
the cross-flow fan blade 3 is provided with a fan blade center 31, the upper edge on the inner side of the upper guide wall 1 is defined as a first end 12, the lower edge on the inner side of the lower guide wall 2 is defined as a second end 21, and the lower edge on the inner side of the lower guide wall 2 is defined as the shortest position of the lower guide wall 2 from the upper guide wall 1;
the fan blade center 31 is connected with the first end 12 to form a first connecting line, the fan blade center 31 is connected with the second end 21 to form a second connecting line, and a first included angle a is formed between the first connecting line and the second connecting line;
defining the point of the air duct, which has the smallest distance with the fan blade center 31, as an intersection point 13, connecting the fan blade center 31 with the intersection point to form a third connecting line, connecting the first end 12 with the second end 21 to form a fourth connecting line, sandwiching a second included angle b between the third connecting line and the fourth connecting line,
and the first included angle a and the second included angle b meet the following relation: a/b=0.35 to 0.58.
According to the invention, the relation of the air outlet angles is researched, and the air inlet quantity is kept unchanged, so that the noise of the air conditioner is reduced, the use comfort of a user is improved, and the air outlet quantity is improved. The fan blade center is respectively connected with the upper edge (first end) of the upper guide wall and the lower edge (second end) of the inner side of the lower guide wall, so that a formed first included angle a is clamped between the fan blade center and the air duct, a second included angle b is formed by clamping a connecting line formed between the fan blade center and the first second end, and the relationship of a/b=0.35-0.58 is set between the two included angles, so that the cross-flow fan blade can be arranged at a proper position in the air duct, the air outlet noise and the air flow noise of the indoor unit can be reduced to the greatest extent, and the running performance of the air conditioner indoor unit and even the air conditioner is improved. Specifically, when the first included angle a is smaller, it is indicated that the through-flow fan blade is right-shifted (see fig. 1 and 2), that is, the center is close to the connection line between the first end and the second end, and when the first included angle a is larger, it is indicated that the through-flow fan blade is left-shifted (see fig. 1 and 2), that is, the center of the fan blade is far away from the connection line between the first end and the second end; when the second included angle b is smaller (if the center position of the through-flow fan blade is unchanged), the intersection point of the minimum distance forming connection line and the air duct is shifted to the right and lower as much as possible in fig. 1 and 2, which shows that the through-flow fan blade is shifted to the right and lower at this time, and when the second included angle b is larger (if the center position of the through-flow fan blade is unchanged), the intersection point of the minimum distance forming connection line and the air duct is shifted to the right and upper as much as possible in fig. 1 and 2, which shows that the through-flow fan blade is shifted to the right and upper at this time. Therefore, the first included angle a and the second included angle b are set to meet the relation a/b=0.35-0.58, so that the through-flow fan blade is prevented from being excessively deviated to the right lower part in the air duct to cause collision between the air flow and the inner wall of the air duct to generate noise, and the through-flow fan blade is prevented from excessively deviated to the right upper part in the air duct to cause larger resistance of the air flow at the volute tongue position to generate noise, thereby ensuring proper setting positions of the through-flow fan blade in the air duct, reducing the air outlet noise and the air flow noise of the indoor unit to the greatest extent, improving the air outlet quantity and improving the running performance of the indoor unit of the air conditioner and even the air conditioner.
Preferably, the first included angle a and the second included angle b also satisfy the relationship: b-a=25.1° to 45.1 °. In the air conditioning indoor unit of the present invention, the first angle a is set to be 25.1 ° to 45.1 ° smaller than the second angle b, so that the first angle a is especially avoided being larger than the second angle b, i.e. the situation that the center of the through-flow fan blade is inclined leftwards due to the fact that the first angle a is longer than the second angle b can be preferably prevented (as shown in fig. 1-2, the situation can cause serious collision between the air flow and the left inner wall of the air duct, thereby generating noise, the space on the right side of the fan blade is larger, the air flow does not pass through the fan blade, thereby playing a role of air supply), and the situation that the collision generates noise with the left inner wall can be caused by setting the first angle a smaller than the second angle b, so that the situation can not occur, the center of the through-flow fan blade is located at the center or rightwards as far as possible, and the noise generated due to the situation can be avoided.
Preferably, the value range of the first included angle a is: 24.4-34.4 degrees. The preferred value range of the first included angle a of the air conditioner indoor unit ensures that the angle is not too small, so that the cross-flow fan blade is deviated to the right side to increase the air flow collision noise on the right side, and also avoids the deviation of the cross-flow fan blade to the left inner wall to increase the air flow collision noise on the left side due to the overlarge angle, and meanwhile, the air supply effect is not formed by the fan blade, thereby effectively ensuring the reasonable setting position of the cross-flow fan blade, ensuring the normal air supply of the air flow, effectively reducing the air flow noise and ensuring the normal, effective and reliable operation of the indoor unit.
Preferably, the value range of the second included angle b is: 59.5-69.5 deg.. The preferred value range of the second included angle b of the air conditioner indoor unit ensures that the angle is not too small, so that the cross-flow fan blade deviates to the left side to increase the air flow collision noise at the left side, meanwhile, the effect of air supply cannot be formed without passing through the fan blade, and the cross-flow fan blade is prevented from deviating to the inner wall at the upper right side to increase the air flow collision noise at the upper right side due to the too large angle, thereby effectively ensuring the reasonable arrangement position of the cross-flow fan blade, ensuring the normal air supply of the air flow, simultaneously effectively reducing the air flow noise and ensuring the normal, effective and reliable operation of the indoor unit.
Preferably, the intersection point 13 is located closer to the lower guide wall 2 than to the upper guide wall 1. The air conditioner indoor unit is characterized in that the air conditioner indoor unit comprises an air duct, wherein the air duct is provided with a fan blade, the fan blade is arranged on the left side wall of the air duct, the fan blade is arranged on the right side wall of the air duct, and the fan blade is arranged on the left side wall of the air duct.
Preferably, the air conditioner further comprises an evaporator 4, and the air duct is arranged at a position between the evaporator 4 and the cross-flow fan blade 4. The evaporator can perform heat exchange, particularly evaporation heat exchange, on the air flow entering the evaporator, and the air duct is arranged between the evaporator and the cross-flow fan blade, so that the air flow is sucked into the evaporator through the air suction effect of the fan blade and flows into the air duct after heat exchange, thereby completing the heat exchange and air supply effects.
Preferably, the length of the through-flow fan blade 3 is L1, the length of the air duct air outlet 11 is L2, the length of the evaporator 4 is L3, and the through-flow fan blade has L1/l2=0.97-1.09, and L1/l3=0.87-1.01. Through setting up to satisfy the relation between through-flow fan blade length L1 and the air outlet length L2: l1/l2=0.97 to 1.09, and the cross-flow fan blade length L1 and the evaporator length L3 are set so as to satisfy the relationship: the length L1/l3=0.87-1.01, the size between the length L1 of the through-flow fan blade and the length L2 of the air outlet is basically equal, but there is a floating error range, so that the length L1 of the through-flow fan blade avoids the noise caused by vortex generated when the air sent by the air outlet is too much and cannot be directly sent out from the air outlet and blown onto the inner wall of the air duct, and also avoids the noise generated by accumulation generated by the fact that the air flow after passing through the air outlet cannot be sucked by the air blade and is too much and cannot be generated by vortex generated by the air flow, which is caused by the fact that the length L1 of the air outlet is shorter than the length L2 of the air outlet, and the size between the length L1 of the through-flow fan blade and the length L2 of the air outlet is basically equal, but also has a floating error range, so that the length L1 of the air flow is prevented from being too much and is generated by vortex generated when the air sent out from the evaporator and is sent to the air blade, and the noise is also prevented from being generated by the air flow after being sent out by the air outlet is not much and is not sucked by the air flow, and thus noise is generated by the air flow disturbance, and thus the noise is generated, and the indoor air conditioner can effectively reduce the running noise of the indoor air conditioner and the indoor air conditioner.
Preferably, the length L2 of the air outlet of the air duct and the length L1 of the cross-flow fan blade further satisfy the following relation: l1—l2=15 to 25mm. The air conditioner indoor unit is characterized in that the air outlet length L2 and the fan blade length L1 are in a further preferable relation mode, the air outlet length L2 is set to be 15-25 mm shorter than the fan blade length L1, so that the air outlet length L2 is especially prevented from being longer than the fan blade length L1, namely, the situation that a gap between the fan blade and the air outlet is generated in the length direction and noise is generated due to the fact that the air outlet length L2 is longer than the fan blade length L1 can be preferably prevented, and the situation that the gap is not generated can be effectively guaranteed and noise generated due to the fact that the gap is prevented to the greatest extent by setting the air outlet length L2 to be shorter than the fan blade length L1.
Preferably, the length L3 of the evaporator and the length L1 of the through-flow fan blade also satisfy the relationship: l3—l1=40 to 50mm. This is a further preferred relation between the evaporator length L3 and the blade length L1 of the indoor unit of the air conditioner according to the present invention, and by setting the evaporator length L3 to be 40 to 50mm longer than the blade length L1, it is possible to avoid, in particular, a structural form in which the evaporator length L3 is shorter than the blade length L1, that is, it is preferable to prevent noise from being generated by a vortex generated when air sent from the evaporator to the blade due to the fact that the evaporator length L3 is shorter than the blade length L1, and to effectively ensure that the vortex is not generated by the fact that the evaporator length L3 is longer than the blade length L1 by the small distance described above, thereby maximally avoiding noise generated by the above-described situation. According to the above relationship, the relationship L3-l2=95 to 125mm between the outlet length L2 and the evaporator length L3 can be obtained.
Preferably, the air inlet and the air inlet panel 5 arranged at the air inlet are further included. And air flow is induced to the air conditioner indoor unit through the air inlet panel.
Preferably, the evaporator 4 is located at a position between the air inlet panel 5 and the cross-flow fan blade 3. Through setting up the evaporimeter in the position between air inlet panel and the through-flow fan blade, can make the air current flow through the air inlet panel earlier, then carry out heat transfer with the evaporimeter, and the through-flow fan blade flows through, promptly through the induced draught effect of through-flow fan blade for the air current is inhaled from air inlet panel, and then gets into the evaporimeter and carry out heat transfer, later is blown to indoor again, has improved the mobility of air current, has strengthened heat transfer efficiency.
Preferably, the air conditioning indoor unit is a cabinet air conditioner (more preferably, a cylindrical cabinet air conditioner). The air conditioner indoor unit is in a preferable structural form, can effectively reduce noise of the vertical cabinet air conditioner and improves use comfort.
The invention aims to study the relation of the angles of the air outlets, and achieve the purposes of reducing the noise of an air conditioner, improving the use comfort of users and improving the air quantity of the air outlets. Under the condition that the air inlet quantity is certain, the angle relation of the air outlet is selected in the range, and experiments prove that the selection greatly improves the air conditioning noise, ensures the quality improvement of the sound quality of the air conditioner and improves the air conditioning performance and the air outlet quantity.
The invention also provides an air conditioner: which comprises the air conditioner indoor unit. The fan blade center of the air conditioner indoor unit is respectively connected with the free end of the air outlet of the air channel and the corner end of the volute tongue, so that a formed first included angle a is formed by clamping, the minimum distance between the fan blade center and the air channel forms a connecting line and a first second end connecting line is clamped to form a second included angle b, and the relationship of a/b=0.35-0.58 is met by setting the two included angles, so that the cross-flow fan blade can be arranged at a proper position in the air channel, the air outlet noise and the airflow flowing noise of the indoor unit can be reduced to the greatest extent, and the running performance of the air conditioner indoor unit and even the air conditioner is improved. Specifically, when the first included angle a is smaller, it is indicated that the through-flow fan blade is right-shifted (see fig. 1 and 2), that is, the center is close to the connection line between the first end and the second end, and when the first included angle a is larger, it is indicated that the through-flow fan blade is left-shifted (see fig. 1 and 2), that is, the center of the fan blade is far away from the connection line between the first end and the second end; when the second included angle b is smaller (if the center position of the through-flow fan blade is unchanged), the intersection point of the minimum distance forming connection line and the air duct is shifted to the right and lower as much as possible in fig. 1 and 2, which shows that the through-flow fan blade is shifted to the right and lower at this time, and when the second included angle b is larger (if the center position of the through-flow fan blade is unchanged), the intersection point of the minimum distance forming connection line and the air duct is shifted to the right and upper as much as possible in fig. 1 and 2, which shows that the through-flow fan blade is shifted to the right and upper at this time. Therefore, the first included angle a and the second included angle b are set to meet the relation a/b=0.35-0.58, so that the through-flow fan blade is prevented from being excessively deviated to the right lower part in the air duct to cause collision between the air flow and the inner wall of the air duct to generate noise, and the through-flow fan blade is prevented from excessively deviated to the right upper part in the air duct to cause larger resistance of the air flow at the volute tongue position to generate noise, thereby ensuring proper setting positions of the through-flow fan blade in the air duct, reducing the air outlet noise and the air flow noise of the indoor unit to the greatest extent, and improving the running performance of the indoor unit of the air conditioner and even the air conditioner.
The invention relates to an air conditioner, which comprises an evaporator, cross-flow fan blades, an air duct and a volute tongue, wherein the air duct is positioned between the evaporator and the cross-flow fan blades, as shown in figure 1. Wind enters from the air inlet panel and exits from the air outlet of the air duct under the action of the cross-flow fan blades. The invention reduces the noise of the air conditioner, improves the comfort of users and improves the air output by adjusting the relation of the angles of the air outlets under the condition of a certain air input.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
1. A vertical cabinet air conditioner is characterized in that: the air duct comprises cross-flow fan blades (3) and an air duct, wherein the air duct is provided with an air duct air outlet (11), and the air duct air outlet (11) comprises an upper guide wall (1) and a lower guide wall (2);
on the cross section of the cross-flow fan blade (3):
the cross-flow fan blade (3) is provided with a fan blade center (31), the inner upper edge of the upper guide wall (1) is defined to be a first end (12), the inner lower edge of the lower guide wall (2) is defined to be a second end (21), and the inner lower edge of the lower guide wall (2) is defined to be the shortest position on the lower guide wall (2) from the upper guide wall (1);
the fan blade center (31) is connected with the first end (12) to form a first connecting line, the fan blade center (31) is connected with the second end (21) to form a second connecting line, and a first included angle a is formed between the first connecting line and the second connecting line in a clamping way;
defining the point with the smallest space between the air duct and the fan blade center (31) as an intersection point (13), connecting the fan blade center (31) with the intersection point to form a third connecting line, connecting the first end (12) with the second end (21) to form a fourth connecting line, sandwiching a second included angle b between the third connecting line and the fourth connecting line,
and the first included angle a and the second included angle b meet the following relation: a/b=0.35 to 0.58; the intersection point (13) is located closer to the lower guide wall (2) than to the upper guide wall (1).
2. The cabinet air conditioner according to claim 1, wherein: the first included angle a and the second included angle b also satisfy the relation: b-a=25.1° to 45.1 °.
3. A cabinet air conditioner according to any one of claims 1-2, wherein: the value range of the first included angle a is as follows: 24.4-34.4 degrees.
4. A cabinet air conditioner according to any one of claims 1-2, wherein: the value range of the second included angle b is as follows: 59.5-69.5 deg..
5. A cabinet air conditioner according to any one of claims 1-2, wherein: the air flue is arranged at the position between the evaporator (4) and the cross-flow fan blade (3).
6. The cabinet air conditioner of claim 5, wherein: the length of the cross-flow fan blade (3) is L1, the length of the air duct air outlet (11) is L2, the length of the evaporator (4) is L3, the cross-flow fan blade has the ratio of L1/L2=0.97-1.09, and the cross-flow fan blade has the ratio of L1/L3=0.87-1.01.
7. The cabinet air conditioner of claim 6, wherein: the length L2 of the air outlet of the air channel and the length L1 of the cross-flow fan blade also satisfy the following relation: l1—l2=15 to 25mm.
8. The cabinet air conditioner according to any one of claims 6 to 7, wherein: the length L3 of the evaporator and the length L1 of the cross-flow fan blade also satisfy the relation: l3—l1=40 to 50mm.
9. An air conditioner: the method is characterized in that: comprising a cabinet air conditioner according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743172.1A CN107477677B (en) | 2017-08-25 | 2017-08-25 | Air conditioner indoor unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743172.1A CN107477677B (en) | 2017-08-25 | 2017-08-25 | Air conditioner indoor unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477677A CN107477677A (en) | 2017-12-15 |
| CN107477677B true CN107477677B (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743172.1A Active CN107477677B (en) | 2017-08-25 | 2017-08-25 | Air conditioner indoor unit and air conditioner |
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| CN108088057A (en) * | 2018-01-05 | 2018-05-29 | 奥克斯空调股份有限公司 | A kind of rectification air passage and air conditioner |
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| WO2002029331A1 (en) * | 2000-09-29 | 2002-04-11 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| JP2008240612A (en) * | 2007-03-27 | 2008-10-09 | Mitsubishi Electric Corp | Sirocco fan and air conditioner |
| CN202209733U (en) * | 2011-08-30 | 2012-05-02 | 珠海格力电器股份有限公司 | Air conditioning device |
| CN102644974A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN105627430A (en) * | 2014-11-29 | 2016-06-01 | 青岛海尔空调器有限总公司 | Split-type wall-mounted air conditioner |
| CN207113028U (en) * | 2017-08-25 | 2018-03-16 | 重庆凌达压缩机有限公司 | A kind of indoor apparatus of air conditioner and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2002029331A1 (en) * | 2000-09-29 | 2002-04-11 | Mitsubishi Denki Kabushiki Kaisha | Air conditioner |
| JP2008240612A (en) * | 2007-03-27 | 2008-10-09 | Mitsubishi Electric Corp | Sirocco fan and air conditioner |
| CN202209733U (en) * | 2011-08-30 | 2012-05-02 | 珠海格力电器股份有限公司 | Air conditioning device |
| CN102644974A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN105627430A (en) * | 2014-11-29 | 2016-06-01 | 青岛海尔空调器有限总公司 | Split-type wall-mounted air conditioner |
| CN207113028U (en) * | 2017-08-25 | 2018-03-16 | 重庆凌达压缩机有限公司 | A kind of indoor apparatus of air conditioner and air conditioner |
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| CN107477677A (en) | 2017-12-15 |
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