CN107490067B - Indoor unit and air conditioning system - Google Patents
Indoor unit and air conditioning system Download PDFInfo
- Publication number
- CN107490067B CN107490067B CN201710744888.3A CN201710744888A CN107490067B CN 107490067 B CN107490067 B CN 107490067B CN 201710744888 A CN201710744888 A CN 201710744888A CN 107490067 B CN107490067 B CN 107490067B
- Authority
- CN
- China
- Prior art keywords
- air outlet
- flow fan
- fan blade
- air
- cross
- 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.)
- Active
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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0025—Cross-flow or tangential fans
-
- 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
-
- 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
-
- 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
Landscapes
- 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 indoor unit and an air conditioning system. This indoor set includes wind channel (2) and sets up through-flow fan blade (1) in wind channel (2), wind channel (2) are including relative first guiding wall (4) and the second guiding wall (5) that set up, wind channel (2) have air outlet (3), the length of through-flow fan blade (1) is L1, the length of air outlet (3) is L2, the width of air outlet (3) is a1, the width of air outlet (3) is the minimum distance between the internal face of first guiding wall (4) and the internal face of second guiding wall (5), L1, the relation between L2 and a1 satisfies: l1= a x L2-b x a1+ c, wherein a ranges from 1.151 to 1.165; b ranges from 1.449 to 1.459; c ranges from 41.11 to 41.21; l1 > L2 > a1. According to the indoor unit disclosed by the invention, the air outlet performance of the air conditioner can be effectively ensured, and the air outlet noise is reduced.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to an indoor unit and an air conditioning system.
Background
For traditional wall hanging machines and partial vertical air conditioners, a cross-flow fan is generally adopted for air supply, the cross-flow fan is placed in an air duct, the air outlet efficiency and the noise of the cross-flow fan are greatly influenced by the structure of the air duct, and if the cross-flow fan blades and the air duct are unreasonable in structural design, the air outlet performance of the air conditioner is influenced, and large noise is generated.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide an indoor unit and an air conditioning system, which can effectively ensure the air outlet performance of an air conditioner and reduce the air outlet noise.
In order to solve the above problems, the present invention provides an indoor unit, including an air duct and a through-flow fan blade disposed in the air duct, the air duct includes a first flow guide wall and a second flow guide wall disposed oppositely, the air duct has an air outlet, the length of the through-flow fan blade is L1, the length of the air outlet is L2, the width of the air outlet is a1, the width of the air outlet is the minimum distance between the inner wall surface of the first flow guide wall and the inner wall surface of the second flow guide wall, and the relationship among L1, L2 and a1 satisfies: l1= a L2-b a1+ c, wherein a ranges from 1.151 to 1.165; b ranges from 1.449 to 1.459; c ranges from 41.11 to 41.21; l1 > L2 > a1.
Preferably, the relationship between L1 and L2 satisfies: L1-L2 is more than or equal to 15mm and less than or equal to 25mm.
Preferably, the relationship between L2 and a1 satisfies: a1/L2 is more than or equal to 0.1257 and less than or equal to 0.1284.
Preferably, the length range of the cross-flow fan blade is 900-950 mm.
Preferably, the width of the air outlet is 110-120 mm.
Preferably, the section of the air outlet channel of the air duct increases gradually along the air outlet direction.
Preferably, the diameter of the cross-flow fan blade is D, L1 × D/(L2 × a 1) = 1.016-1.029.
Preferably, on the cross section of the cross-flow fan blade, the distance between the center of the cross-flow fan blade and the inner edge of the first guide wall far from the side of the cross-flow fan blade is L3, the distance between the center of the cross-flow fan blade and the inner edge of the second guide wall close to the side of the cross-flow fan blade is L4, the inner edge of the second guide wall close to the side of the cross-flow fan blade is the point where the distance between the second guide wall and the first guide wall is the minimum, and the range of L3/L4 is 1.59 to 2.03.
Preferably, the diameter of the cross-flow fan blade is 109 to 115mm.
According to another aspect of the present invention, an air conditioning system is provided, which includes an indoor unit, the indoor unit being the indoor unit described above.
The invention provides an indoor unit, which comprises an air duct and a through-flow fan blade arranged in the air duct, wherein the air duct comprises a first flow guide wall and a second flow guide wall which are oppositely arranged, the air duct is provided with an air outlet, the length of the through-flow fan blade is L1, the length of the air outlet is L2, the width of the air outlet is a1, the length of the air outlet is the minimum distance in the length direction of an air outlet part of the air duct, the width of the air outlet is the minimum distance between the inner wall surface of the first flow guide wall and the inner wall surface of the second flow guide wall, and the relation among L1, L2 and a1 meets the following requirements: l1= a L2-b a1+ c, wherein a ranges from 1.151 to 1.165; b ranges from 1.449 to 1.459; c ranges from 41.11 to 41.21; l1 > L2 > a1. Through the mode, the relative relation between the length of the through-flow fan blade and the length and width of the air outlet can be reasonably limited, so that the indoor unit can have a more reasonable air outlet structure, the air outlet performance of the air conditioner can be guaranteed on the basis of reducing the air inlet and outlet loss, and the air outlet noise is reduced.
Drawings
Fig. 1 is a schematic view of an indoor unit according to an embodiment of the present invention;
FIG. 2 is a view showing the structure of the outlet size of the indoor unit according to the embodiment of the present invention;
FIG. 3 is a structural diagram of a cross-flow fan blade of an indoor unit according to an embodiment of the present invention;
fig. 4 is a matching structure view of a cross-flow fan blade and an air duct of an indoor unit according to an embodiment of the present invention.
The reference numbers are given as:
1. a cross-flow fan blade; 2. an air duct; 3. an air outlet; 4. a first guide wall; 5. a second guide wall; 6. a heat exchanger; 7. an air inlet grille.
Detailed Description
With reference to fig. 1 to 4, according to an embodiment of the present invention, an indoor unit includes an air duct 2 and a cross-flow fan blade 1 disposed in the air duct 2, the air duct 2 includes a first flow guide wall 4 and a second flow guide wall 5 disposed oppositely, the air duct 2 has an air outlet 3, the length of the cross-flow fan blade 1 is L1, the length of the air outlet 3 is L2, the width of the air outlet 3 is a1, the width of the air outlet 3 is a minimum distance between an inner wall surface of the first flow guide wall 4 and an inner wall surface of the second flow guide wall 5, and a relationship among L1, L2, and a1 satisfies: l1= a L2-b a1+ c, wherein a ranges from 1.151 to 1.165, preferably a is 1.15883; b ranges from 1.449 to 1.459, preferably b is 1.45414; c ranges from 41.11 to 41.21, preferably c is 41.16452; l1 > L2 > a1.
Through the mode, the relative relation between the length of the through-flow fan blade 1 and the length and width of the air outlet 3 can be reasonably limited, so that the indoor unit can have a more reasonable air outlet structure, the air outlet performance of the air conditioner can be guaranteed on the basis of reducing the air inlet and outlet loss, and the air outlet noise is reduced.
Preferably, the relationship between L1 and L2 satisfies: L1-L2 are not less than 15mm and not more than 25mm, the air supply efficiency of the through-flow fan blade 1 can be effectively reduced due to the fact that the difference value between the length L2 of the air outlet and the length L1 of the through-flow fan blade 1 is too large, air outlet of the through-flow fan blade 1 can flow out through the air outlet 3 more effectively, the air outlet efficiency of the air outlet is improved, air outlet resistance can be reduced, and air outlet noise can be reduced.
Preferably, the relationship between L2 and a1 satisfies: a1/L2 is more than or equal to 0.1257 and less than or equal to 0.1284, so that the length-width ratio of the air outlet 3 can be set within a reasonable range, the air outlet 3 has an air outlet structure with a larger length-width ratio, the air outlet performance of the air outlet 3 is ensured, and the air supply resistance of the air outlet 3 to the cross-flow fan blade 1 is reduced.
Preferably, the length range of the cross-flow fan blade 1 is 900-950 mm.
Preferably, the width of the air outlet 3 ranges from 110 mm to 120mm.
Preferably, the air outlet channel of wind channel 2 increases progressively along air-out direction cross-section, and when the air flowed out along the air outlet channel, the air-out scope crescent can reach indoor each place more fast after leaving air outlet 3 for indoor temperature can be adjusted fast, improves temperature regulation efficiency.
Preferably, the diameter of the through-flow fan blade 1 is D, L1 × D/(L2 × a 1) =1.016 to 1.029, so that a good matching relationship can be formed between the air output of the through-flow fan blade 1 and the air output area of the air outlet, the air output of the through-flow fan blade can be blown out from the air outlet to the greatest extent all the time, and the air output of the air outlet to the through-flow fan blade is reduced.
Preferably, on the cross section of the cross-flow fan blade 1, the distance between the center of the cross-flow fan blade 1 and the inner edge of the first guide wall 4 on the side far from the cross-flow fan blade 1 is L3, the distance between the center of the cross-flow fan blade 1 and the inner edge of the second guide wall 5 on the side close to the cross-flow fan blade 1 is L4, the inner edge of the second guide wall 5 on the side close to the cross-flow fan blade 1 is the point where the distance between the second guide wall 5 and the first guide wall 4 is the minimum, and the range of L3/L4 is 1.59-2.03.
The air outlet is provided with an air inlet end and an air outlet end, wherein the distance between the center of the through-flow fan blade and the inner upper edge of the first flow guide wall 4 of the air channel determines the air outlet length of the air channel, the distance between the center of the through-flow fan blade and the inner lower edge of the second flow guide wall 5 of the air channel determines the air inlet position of the air outlet 3, the air outlet and the air guide wall are combined, the air supply distance of the air channel structure can be determined, the range of L1/L2 is limited to 1.59-2.03, the air supply distance of the air channel structure can be reasonably limited by the distance between the center of the through-flow fan blade and the air guide wall, the air channel structure can be associated with the diameter of the through-flow fan blade 1, enough air supply distance can be achieved, enough air outlet strength can be provided, the air outlet structure of the air conditioner is more reasonable, meanwhile, the air outlet noise of the air conditioner can be controlled to a certain degree, the air outlet of the air conditioner is more uniform, and the air outlet effect is better.
Preferably, the diameter of the cross-flow fan blade 1 is 109 to 115mm.
The following table 1 shows the measured values of air volume and noise when L2 is 893mm and L1-L2 are different values:
it can be seen from the table that when the difference between L1 and L2 is 20mm, the air volume to noise ratio is the largest, the balance between the air volume and the noise of the air conditioner is the best, and the air conditioner has the best air outlet effect.
The following table 2 shows the measured values of air volume and noise when L2 is 893mm and a1/L2 is different ratios:
it can be seen from the table that when the ratio of a1/L2 is 0.125756, the air volume to noise ratio is the largest, the balance between the air volume and the noise of the air conditioner is the best, and the air conditioner has the best air outlet effect.
According to an embodiment of the invention, the air conditioning system comprises an indoor unit, and the indoor unit is the indoor unit.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
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 (8)
1. The utility model provides an indoor unit, its characterized in that includes wind channel (2) and sets up through-flow fan blade (1) in wind channel (2), wind channel (2) are including relative first guiding wall (4) and the second guiding wall (5) that set up, wind channel (2) have air outlet (3), the length of through-flow fan blade (1) is L1, the length of air outlet (3) is L2, the width of air outlet (3) is a1, the width of air outlet (3) is for the internal face of first guiding wall (4) with the minimum distance between the internal face of second guiding wall (5), the relation between L1, L2 and a1 satisfies: l1= a L2-b a1+ c, wherein a ranges from 1.151 to 1.165; b ranges from 1.449 to 1.459; c ranges from 41.11 to 41.21; l1 > L2 > a1; the relationship between L1 and L2 satisfies: L1-L2 is more than or equal to 17 mm and less than or equal to 23mm; the relationship between L2 and a1 satisfies: a1/L2 is more than or equal to 0.1257 and less than or equal to 0.1284.
2. Indoor unit according to claim 1, characterized in that the length of the cross-flow fan (1) is 900-950 mm.
3. Indoor unit according to claim 1, characterized in that the width of the outlet (3) ranges from 110 to 120mm.
4. The indoor unit of claim 1, wherein the air outlet channel of the air duct (2) has an increasing cross section along the air outlet direction.
5. The indoor unit of claim 1, wherein the diameter of the cross-flow fan blade (1) is D, L1 × D/(L2 × a 1) =1.016 to 1.029.
6. The indoor unit of claim 1, wherein, on the cross section of the cross-flow fan blade (1), the distance between the center of the cross-flow fan blade (1) and the inner edge of the first guide wall (4) on the side far away from the cross-flow fan blade (1) is L3, the distance between the center of the cross-flow fan blade (1) and the inner edge of the second guide wall (5) on the side close to the cross-flow fan blade (1) is L4, the inner edge of the second guide wall (5) on the side close to the cross-flow fan blade (1) is the point where the distance between the second guide wall (5) and the first guide wall (4) is the smallest, and the range of L3/L4 is 1.59-2.03.
7. Indoor unit according to claim 1, characterized in that the diameter of the cross-flow fan blade (1) is 109 to 115mm.
8. An air conditioning system comprising an indoor unit, characterized in that the indoor unit is an indoor unit according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744888.3A CN107490067B (en) | 2017-08-25 | 2017-08-25 | Indoor unit and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744888.3A CN107490067B (en) | 2017-08-25 | 2017-08-25 | Indoor unit and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107490067A CN107490067A (en) | 2017-12-19 |
| CN107490067B true CN107490067B (en) | 2022-11-15 |
Family
ID=60645827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710744888.3A Active CN107490067B (en) | 2017-08-25 | 2017-08-25 | Indoor unit and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107490067B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142732A (en) * | 1998-05-26 | 2000-11-07 | Carrier Corporation | Fan scroll |
| CN1376878A (en) * | 2001-03-23 | 2002-10-30 | 三菱重工业株式会社 | Indoor unit and air conditioner |
| KR20040043442A (en) * | 2002-11-18 | 2004-05-24 | 엘지전자 주식회사 | out door unit of air conditioner |
| CN1793742A (en) * | 2006-01-01 | 2006-06-28 | 宁波方太厨具有限公司 | Air out device used for forming air curtain |
| CN2861844Y (en) * | 2006-01-01 | 2007-01-24 | 宁波方太厨具有限公司 | Air-out apparatus for forming air curtain |
| CN201318294Y (en) * | 2008-12-15 | 2009-09-30 | 浙江朗迪集团股份有限公司 | Air passage of cross flow fan |
| CN201705686U (en) * | 2010-05-25 | 2011-01-12 | 宁波丽辰电器有限公司 | Air outlet structure of cross flow fan |
| CN102644971A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN202747572U (en) * | 2012-06-13 | 2013-02-20 | 珠海格力电器股份有限公司 | Indoor machine |
| CN207113030U (en) * | 2017-08-25 | 2018-03-16 | 珠海凌达压缩机有限公司 | Indoor set and air-conditioning system |
-
2017
- 2017-08-25 CN CN201710744888.3A patent/CN107490067B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142732A (en) * | 1998-05-26 | 2000-11-07 | Carrier Corporation | Fan scroll |
| CN1376878A (en) * | 2001-03-23 | 2002-10-30 | 三菱重工业株式会社 | Indoor unit and air conditioner |
| KR20040043442A (en) * | 2002-11-18 | 2004-05-24 | 엘지전자 주식회사 | out door unit of air conditioner |
| CN1793742A (en) * | 2006-01-01 | 2006-06-28 | 宁波方太厨具有限公司 | Air out device used for forming air curtain |
| CN2861844Y (en) * | 2006-01-01 | 2007-01-24 | 宁波方太厨具有限公司 | Air-out apparatus for forming air curtain |
| CN201318294Y (en) * | 2008-12-15 | 2009-09-30 | 浙江朗迪集团股份有限公司 | Air passage of cross flow fan |
| CN201705686U (en) * | 2010-05-25 | 2011-01-12 | 宁波丽辰电器有限公司 | Air outlet structure of cross flow fan |
| CN102644971A (en) * | 2012-05-18 | 2012-08-22 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN202747572U (en) * | 2012-06-13 | 2013-02-20 | 珠海格力电器股份有限公司 | Indoor machine |
| CN207113030U (en) * | 2017-08-25 | 2018-03-16 | 珠海凌达压缩机有限公司 | Indoor set and air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107490067A (en) | 2017-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106247460B (en) | Wall-mounted air conditioner and control method thereof | |
| CN105546780B (en) | Air fairing and air conditioner | |
| CN105509280B (en) | Air fairing and air conditioner | |
| JPWO2016067408A1 (en) | Air conditioner | |
| CN204176753U (en) | Air conditioner | |
| CN206771534U (en) | Indoor apparatus of air conditioner | |
| CN205448209U (en) | Air fairing and air conditioner | |
| CN204026943U (en) | Indoor unit of air conditioner | |
| CN107490067B (en) | Indoor unit and air conditioning system | |
| CN203628961U (en) | Fan system and air conditioner with same | |
| CN107490066B (en) | Indoor unit and air conditioning system | |
| CN207113030U (en) | Indoor set and air-conditioning system | |
| CN207113027U (en) | Indoor set and air-conditioning system | |
| CN107687671B (en) | Indoor unit and air conditioning system | |
| CN111981566B (en) | Fan and air conditioner indoor unit | |
| CN108387130B (en) | A kind of composite fin heat exchanger based on bionic principle | |
| CN207702585U (en) | Indoor unit and air-conditioning system | |
| CN208998303U (en) | Air return preventing panel structure, air conditioner indoor unit and air conditioner | |
| CN208458103U (en) | Air channel structure and air conditioner | |
| CN107477678B (en) | Air duct structure and air conditioner | |
| WO2017049447A1 (en) | Mixed air output indoor unit of air conditioner | |
| CN206094301U (en) | Heat exchanger and air conditioner indoor unit | |
| CN108443977B (en) | Window type air conditioning equipment | |
| CN111189213A (en) | Air return preventing panel structure, air conditioner indoor unit and air conditioner | |
| CN107328065B (en) | Flow passage and 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |