CN108800326B - Indoor unit for air conditioning system - Google Patents
Indoor unit for air conditioning system Download PDFInfo
- Publication number
- CN108800326B CN108800326B CN201810692896.2A CN201810692896A CN108800326B CN 108800326 B CN108800326 B CN 108800326B CN 201810692896 A CN201810692896 A CN 201810692896A CN 108800326 B CN108800326 B CN 108800326B
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- China
- Prior art keywords
- impeller
- air
- indoor unit
- conditioning system
- air conditioning
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F24F1/0022—Centrifugal or radial 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
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an indoor unit for an air conditioning system, which comprises a mounting shell (1), a cover body (2), a centrifugal impeller (3), a rotating shaft (4), a motor (5) and a heat exchanger (6), and is characterized in that: the impeller comprises a plurality of blades, a rear disc and a front disc, and a backflow part is arranged on the outer side of the outlet end of the rear disc; the radial outlet of the blade is provided with a plurality of flow guide parts, and the plurality of flow guide parts are positioned on one side or two sides of the blade. The vortex generated when the impeller back plate flows back can be reduced, the flow guide effect at the blade outlet is improved, the noise at the impeller outlet is reduced, and the air quantity at the inlet of the impeller can be adjusted.
Description
Technical Field
The invention relates to the technical field of air conditioners/air conditioners, in particular to an indoor unit for an air conditioning system.
Background
The indoor unit of the air conditioning system is widely applied to environments such as factories, buildings, life and the like, the indoor unit is directly in the same space with people, the performance of the indoor unit directly influences the air outlet effect, such as air volume, air pressure and vortex, the sensory performance of people, such as noise level, and the optimization or design improvement of the air volume, the vortex and the noise still has great space for improvement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an indoor unit for an air conditioning system, which can reduce the vortex generated when a back disk of an impeller flows back, improve the flow guide effect at the outlet of a blade, reduce the noise at the outlet of the impeller and adjust the air volume at the inlet of the impeller.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides an indoor set for air conditioning system, it is including installation casing (1), lid (2), centrifugal impeller (3), pivot (4), motor (5), heat exchanger (6), the impeller is connected with the motor through the pivot, it is rotatory under the drive of motor, the motor is installed on the roof of installation casing, the lid is connected with the installation casing, and be located the one side relative with the roof of installation casing, the radial periphery of impeller is provided with heat exchanger, heat exchanger one end is connected with the roof of installation casing, the other end is connected with the installation component who is located the lid, the filter screen is installed to the centre on the lid, the periphery of lid is equipped with a plurality of air outlets, a plurality of air outlets are located heat exchanger's radial outside, its characterized in that: the impeller comprises a plurality of blades, a rear disk and a front disk, and a backflow part (35) is arranged on the outer side of the outlet end of the rear disk.
Further, the backflow part comprises a semicircular part (351) and an inclined part (352), the inclined part is connected with or integrally formed with the semicircular part, and the inclined part is located on the radial inner side of the semicircular part.
Further, a plurality of flow guide parts (36) are arranged at the radial outlet of the blade and are positioned on one side or two sides of the blade.
Further, the flow guide part is in a triangular pyramid structure.
Further, still include air regulation portion (8), air regulation portion includes arc portion and flat board portion, and the arc portion is located the radial outside of flat board portion, is equipped with a plurality of water conservancy diversion pieces (83) of evenly distributing along the circumference in the arc portion, and flat board portion installs on screw rod (82), screw rod and impeller back plate fixed connection.
Furthermore, two axial sides of the flat plate part are respectively provided with an adjusting nut (81), and the air quantity adjusting part rotates along with the impeller.
Further, the surface of the triangular pyramid structure contacting with the blade is an isosceles triangle, and the included angle a between the waist and the waist of the isosceles triangle is =20-30 °.
Further, still include air intake (7), in the one end of air intake stretched into the front bezel, on the air intake was fixed in the installation component, the one end periphery of stretching into the front bezel of air intake was equipped with a plurality of sealing rings (71), and a plurality of sealing rings are arranged along the axial, formed the seal groove between sealing ring and the sealing ring.
The indoor unit for the air conditioning system can reduce the eddy generated when the impeller rear disc flows back, improve the flow guiding effect at the blade outlet, reduce the noise at the impeller outlet and adjust the air volume at the impeller inlet.
Drawings
FIG. 1 is a view showing the construction of an indoor unit according to the present invention;
FIG. 2 is a view showing the construction of the reflux portion of the present invention;
FIG. 3 is a view showing the structure of the flow guide part of the present invention;
FIG. 4 is a structural diagram of the distribution of the flow guide parts on two sides of the blade.
In the figure: the centrifugal fan comprises an installation shell 1, a cover body 2, a centrifugal impeller 3, a rotating shaft 4, a motor 5, a heat exchanger 6, an air inlet 7, an air quantity adjusting part 8, an air outlet 21, a filter screen 22, an installation assembly 23, blades 31, a rear disc 32, a front disc 33, a tapered hole 34, a backflow part 35, a semicircular part 351, an inclined part 252, a flow guide part 36, a waist 361, a sealing ring 71, an adjusting nut 81, a screw rod 82 and a flow guide sheet 83; arrows indicate gas flow (x, y, f).
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
See figures 1-4: the indoor unit for the air conditioning system comprises an installation shell 1, a cover body 2, a centrifugal impeller 3, a rotating shaft 4, a motor 5 and a heat exchanger 6, wherein the impeller 3 is connected with the motor 5 through the rotating shaft 4 and is driven by the motor 5 to rotate, the motor 5 is installed on the top wall of the installation shell 1, and the cover body 2 is connected with the installation shell 1 and is positioned on one side opposite to the top wall of the installation shell 1. The radial periphery of impeller 3 is provided with heat exchanger 6, and heat exchanger 6 one end is connected with the roof, and the other end is connected with installation component 23 that is located on lid 2, and filter screen 22 is installed to the middle department on the lid 2, and the periphery of lid 2 is equipped with a plurality of air outlets 21, and air outlet 21 is located heat exchanger 6's radial outside.
The centrifugal impeller 3 comprises a plurality of blades 31, a rear disk 32 and a front disk 33, the plurality of blades 31 are uniformly distributed along the circumference, one ends of the plurality of blades 31 are connected with the rear disk 32, the other ends of the plurality of blades 31 are connected with the front disk 33, and the front edge/inlet edge of each blade 31 comprises two inclined sections. The outer side of the outlet end of the rear disc 32 is provided with a backflow part 35, the backflow part 35 comprises a semicircular part 351 and an inclined part 252, and the included angle between the inclined part 252 and the plane of the rear disc is 18-22 degrees, preferably 20 degrees; compared with the vortex generated when the flat-plate-shaped rear disc generates backflow at the outlet end of the rear disc, the vortex generated during backflow can be obviously reduced through the arrangement of the backflow part 35, and the noise is reduced.
A plurality of flow guide parts 36 are arranged near the radial rear edge/outlet of the blade 31, the flow guide parts 36 are respectively positioned at two sides of the blade 31, and the flow guide parts 36 at two sides of the blade 31 are arranged in a staggered manner; the guide part 36 is a triangular pyramid structure, the surface of the triangular pyramid structure contacting the blade 31 is an isosceles triangle, the included angle a =23-28 °, preferably 26 °, between the waist 361 and the waist 361 of the isosceles triangle, the guide parts 36 are arranged in a row along the direction parallel to the rotation axis of the impeller, and compared with a groove or a convex guide part, the guide part with the triangular pyramid structure has a better guide effect and can also increase the diffusion effect of the outlet of the guide part.
The air quantity adjusting part 8 comprises an arc-shaped part and a flat plate part, the arc-shaped part is positioned on the radial outer side of the flat plate part, the arc-shaped part is provided with a plurality of guide vanes 83 which are uniformly distributed along the circumference, a guide groove is formed between each guide vane 83 and each guide vane 83, the radial length of each guide vane 83 is 70-85% of the radial length of the arc-shaped part, the flat plate part is arranged on a screw 82, the screw 82 is fixedly connected with the impeller rear disc 32, two axial sides of the flat plate part are respectively provided with an adjusting nut 81, each adjusting nut 81 is used for adjusting and fixing the axial position of the air quantity adjusting part 8, so that the air quantity at the inlet of the impeller is adjusted, and; the air quantity adjusting part 8 is used for adjusting the air quantity at the inlet of the impeller and plays a role in guiding the air flow entering the blades. The distance between the arc-shaped part of the air volume adjusting part 8 and the rear disc 32 reaches a minimum value at the radial outer end of the arc-shaped part of the air volume adjusting part 8; the rear disc 32 is provided with a plurality of tapered holes 34, the diameter of the tapered hole 34 facing one end of the inner side of the impeller is large, the diameter of the tapered hole facing one side of the motor 5 is small, and the tapered hole 34 conducts air flow to increase the heat dissipation effect on the motor.
In the one end of air intake 7 stretched into front bezel 33, air intake 7 was the arc dish, and on air intake 7 was fixed in installation component 23, air intake 7 stretched into front bezel 33's one end periphery was equipped with a plurality of sealing rings 71, and a plurality of sealing rings 71 were arranged along the axial, formed the seal groove between sealing ring 71 and the sealing ring 71, and the setting of a plurality of sealing rings 71 can reduce the air current of impeller import department and reveal.
The impeller 3 and the air volume adjusting part 8 are made of high-strength engineering plastics or resin, or metal alloy or aluminum alloy, and corresponding materials can be selected according to the requirements of use working conditions.
This an indoor set for air conditioning system can reduce the produced vortex when the back dish flows back, improves the water conservancy diversion effect in blade exit, reduces impeller exit noise, can also adjust the amount of wind of impeller import to improve the efficiency of indoor set.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (6)
1. An indoor unit for an air conditioning system, comprising a centrifugal impeller (3) including a plurality of blades, a rear disc, a front disc, a return portion (35) provided outside an outlet end of the rear disc; the method is characterized in that: the backflow part comprises a semicircular part (351) and an inclined part (352), the inclined part is connected with the semicircular part or integrally formed, and the inclined part is positioned on the radial inner side of the semicircular part; the air quantity adjusting part comprises an arc-shaped part and a flat plate part, the arc-shaped part is positioned on the radial outer side of the flat plate part, the arc-shaped part is provided with a plurality of guide vanes (83) which are uniformly distributed along the circumference, the flat plate part is arranged on a screw rod (82), and the screw rod is fixedly connected with a rear disc of the impeller; the air volume adjusting part (8) is positioned in an impeller cavity of the centrifugal impeller (3), two axial sides of the flat plate part are respectively provided with an adjusting nut (81), and the air volume adjusting part rotates along with the impeller.
2. An indoor unit for an air conditioning system as claimed in claim 1, wherein: the radial outlet of the blade is provided with a plurality of flow guide parts (36) which are positioned on one side or two sides of the blade.
3. An indoor unit for an air conditioning system as claimed in claim 2, wherein: the flow guide part is of a triangular pyramid structure.
4. An indoor unit for an air conditioning system as claimed in claim 1, wherein: still including installation casing (1), lid (2), pivot (4), motor (5), heat exchanger (6), the impeller is connected with the motor through the pivot, it is rotatory under the drive of motor, the motor is installed on the roof of installation casing, the lid is connected with the installation casing, and be located the one side relative with the roof of installation casing, the radial periphery of impeller is provided with heat exchanger, heat exchanger one end is connected with the roof of installation casing, the other end is connected with the installation component who is located on the lid, the filter screen is installed to the centre department on the lid, the periphery of lid is equipped with a plurality of air outlets, a plurality of air outlets are located heat exchanger's the radial outside.
5. An indoor unit for an air conditioning system as claimed in claim 3, wherein: the surface of the triangular pyramid structure, which is contacted with the blade, is an isosceles triangle, and the included angle a between the waist and the waist of the isosceles triangle is =20-30 degrees.
6. An indoor unit for an air conditioning system as claimed in claim 1, wherein: still include air intake (7), in the one end of air intake stretched into the front bezel, on the air intake was fixed in the installation component, the one end periphery of stretching into the front bezel of air intake was equipped with a plurality of sealing rings (71), and a plurality of sealing rings are arranged along the axial, formed the seal groove between sealing ring and the sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810692896.2A CN108800326B (en) | 2018-06-29 | 2018-06-29 | Indoor unit for air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810692896.2A CN108800326B (en) | 2018-06-29 | 2018-06-29 | Indoor unit for air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108800326A CN108800326A (en) | 2018-11-13 |
| CN108800326B true CN108800326B (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810692896.2A Active CN108800326B (en) | 2018-06-29 | 2018-06-29 | Indoor unit for air conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108800326B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201800010748A1 (en) * | 2018-11-30 | 2020-05-30 | Orlandi Thermal Systems Europe S R L | Apparatus for conveying a fluid |
| CN114811725B (en) * | 2022-05-23 | 2025-05-13 | 广州华速信息技术有限公司 | An air conditioning system |
| CN115930298A (en) * | 2022-05-23 | 2023-04-07 | 江苏普睿德环保工程有限公司 | air conditioner |
| KR20250096313A (en) * | 2023-12-20 | 2025-06-27 | 코웨이 주식회사 | Air treatment apparatus |
| CN119042157B (en) * | 2024-08-22 | 2025-09-12 | 浙江宏业装备科技有限公司 | A supply device for a mushroom production workshop |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0656158B2 (en) * | 1985-12-26 | 1994-07-27 | 松下電器産業株式会社 | Blower |
| CN2476669Y (en) * | 2001-04-20 | 2002-02-13 | 升联科技股份有限公司 | Improved Structure of Cooling Fan |
| CN1727759A (en) * | 2004-07-26 | 2006-02-01 | 乐金电子(天津)电器有限公司 | Air exhaust equipment of top suction type indoor machine of air conditioner capable of exhausting air through four sides |
| JP5223250B2 (en) * | 2006-12-14 | 2013-06-26 | パナソニック株式会社 | Centrifugal impeller and centrifugal blower |
| CN201100247Y (en) * | 2007-10-25 | 2008-08-13 | 湖南西城华兴科技发展有限公司 | Pressure increase wind inlet |
| CN201547015U (en) * | 2009-11-17 | 2010-08-11 | 广东美的电器股份有限公司 | Low-noise centrifugal wind wheel |
| CN102536897B (en) * | 2010-12-29 | 2015-04-22 | 台达电子工业股份有限公司 | Fan and impeller thereof |
| JP2016003641A (en) * | 2014-06-19 | 2016-01-12 | パナソニックＩｐマネジメント株式会社 | Centrifugal fan |
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2018
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| CN108800326A (en) | 2018-11-13 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220329 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Address before: 325600 No. 7, Lane 30, Changwang Road, Baisha Village, Chengdong Street, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Chen Ke |
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Effective date of registration: 20230925 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Patentee after: JIANGSU HENGTONG PHOTOCONDUCTIVE NEW MATERIALS Co.,Ltd. Address before: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |
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| TR01 | Transfer of patent right |