CN107702306B - Volute tongue for air conditioner indoor unit and air conditioner indoor unit - Google Patents
Volute tongue for air conditioner indoor unit and air conditioner indoor unit Download PDFInfo
- Publication number
- CN107702306B CN107702306B CN201711034958.2A CN201711034958A CN107702306B CN 107702306 B CN107702306 B CN 107702306B CN 201711034958 A CN201711034958 A CN 201711034958A CN 107702306 B CN107702306 B CN 107702306B
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- indoor unit
- curved surface
- volute tongue
- surface section
- air conditioner
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- 230000007704 transition Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 abstract description 3
- 238000010168 coupling process Methods 0.000 abstract description 3
- 238000005859 coupling reaction Methods 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 210000002105 tongue Anatomy 0.000 description 77
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F24F13/081—Air-flow control members, e.g. louvres, grilles, flaps or guide plates for guiding air around a curve
-
- 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)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Duct Arrangements (AREA)
- Air-Flow Control Members (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention belongs to the field of refrigeration equipment, and particularly discloses a volute tongue for an air conditioner indoor unit capable of effectively reducing air outlet noise and the air conditioner indoor unit. The volute tongue for the indoor unit of the air conditioner comprises a volute tongue body, wherein the volute tongue body is provided with an air guide surface; the wind-guiding face is U-shaped structure, and it includes first curved surface section, second curved surface section and the third curved surface section that smooth transitional coupling is in proper order together. The indoor unit of the air conditioner comprises the volute tongue for the indoor unit of the air conditioner. The wind guide surface of the volute tongue body is of the U-shaped structure formed by sequentially and smoothly transitionally connecting the first curved surface section, the second curved surface section and the third curved surface section, so that the wind guide capacity of the volute tongue can be improved, the convection environment of wind flowing at the volute tongue is improved, the problems of uneven wind outlet, surging of wind outlet and the like are avoided, noise generated during operation of the indoor unit of the air conditioner is effectively reduced, and the wind outlet capacity of the indoor unit of the air conditioner is improved.
Description
Technical Field
The invention belongs to the field of refrigeration equipment, and particularly relates to a volute tongue for an air conditioner indoor unit and the air conditioner indoor unit.
Background
Along with the continuous improvement of the living standard of people, the requirements of people on substances are also higher and higher; for the air conditioner, which is a living necessity, people have higher requirements on the appearance and quality of the air conditioner. Noise is also becoming a significant indicator of customer experience when air conditioners are running. The volute tongue has great influence on the generation of noise during the operation of the indoor unit of the air conditioner. The scroll tongue for the existing air conditioner indoor unit comprises a scroll tongue body which is arranged in an indoor unit body and corresponds to a scroll casing, wherein one surface of the scroll tongue body, which faces towards the center in the scroll casing, is an air guide surface, and the air guide surface is of an L-shaped structure. Although the volute tongue for the indoor unit of the existing air conditioner can meet the use requirement and is easy to install, the air guide surface of the volute tongue is of an L-shaped structure, so that the convection environment of air flowing at the volute tongue is poor, the problems of uneven air outlet, surging of air outlet and the like are easy to occur, and larger noise is often generated in the use process.
Disclosure of Invention
The invention aims to provide a volute tongue for an indoor unit of an air conditioner, which can effectively reduce air outlet noise.
The technical scheme adopted for solving the technical problems is as follows: the volute tongue for the indoor unit of the air conditioner comprises a volute tongue body, wherein the volute tongue body is provided with an air guide surface; the wind-guiding face is U-shaped structure, and it includes first curved surface section, second curved surface section and the third curved surface section that smooth transitional coupling is in proper order together.
Further, the arc radiuses of the first curved surface section, the second curved surface section and the third curved surface section are respectively R 1 、R 2 And R is 3 ，R 1 :R 2 :R 3 ＝40～50:14～17:85～92。
Further, the arc radius R of the first curved surface section 1 The arc radius R of the second curved surface section is 20 mm-25 mm 2 7.0 mm-8.5 mm, and the arc radius R of the third curved surface section 3 42.5 mm-46 mm.
Further, the second curved surface section comprises an upper curved surface section and a lower curved surface section which are connected together in a smooth transition manner, and the arc radiuses of the upper curved surface section and the lower curved surface section are respectively R 21 And R is 22 ，R 21 ：R 22 ＝14～17:14～17。
Further, the arc radius R of the upper curved surface section 21 7.0 mm-8.5 mm, and the arc radius R of the lower curved surface section 22 7.0mm to 8.5mm.
Further, the volute tongue body is also provided with a mounting and connecting structure, and the mounting and connecting structure comprises a volute tongue wind-guiding top surface, a volute tongue top hanging fastener and a volute tongue bottom end lap joint surface; the air guiding top surface of the volute tongue is in smooth transition connection with the first curved surface section, and the lap joint surface at the bottom end of the volute tongue is in smooth transition connection with the third curved surface section; one end of the volute tongue top hanging fastener is connected with the volute tongue wind-guiding top surface, and the other end of the volute tongue top hanging fastener faces towards the volute tongue bottom end lap joint surface.
Further, the inner side surface of the volute tongue top hanging fastener is of a' shape matching structure with an included angle larger than 90 degrees.
Further, the number of the fastening pieces at the top of the volute tongue is more than two, and the fastening pieces are distributed at intervals along the length direction of the volute tongue body.
The invention also provides an air conditioner indoor unit with low air outlet noise, which comprises any one of the volute tongue for the air conditioner indoor unit.
Further, the indoor unit of the air conditioner further comprises a volute, an indoor unit panel, a cross-flow fan, a C-shaped evaporator and an indoor unit cover plate;
the scroll casing and the indoor unit panel are oppositely arranged, the C-shaped evaporator is arranged between the scroll casing and the indoor unit panel, the cross-flow fan is arranged between the scroll casing and the C-shaped evaporator, the indoor unit cover plate is arranged at the bottom of the indoor unit panel, and an indoor unit air outlet is formed between the indoor unit cover plate and the bottom of the scroll casing;
the volute tongue body is arranged at the inner end of the cover plate of the indoor unit, the air guide surface of the volute tongue body faces to the central part in the volute, the first curved surface section corresponds to the C-shaped evaporator, the second curved surface section corresponds to the cross-flow fan, and the third curved surface section corresponds to the air outlet of the indoor unit.
The beneficial effects of the invention are as follows: the wind guide surface of the volute tongue body is of the U-shaped structure formed by sequentially and smoothly transitionally connecting the first curved surface section, the second curved surface section and the third curved surface section, so that the wind guide capacity of the volute tongue can be improved, the convection environment of wind flowing at the volute tongue is improved, the problems of uneven wind outlet, surging of wind outlet and the like are avoided, noise generated during operation of the indoor unit of the air conditioner is effectively reduced, and the wind outlet capacity of the indoor unit of the air conditioner is improved. Tests prove that compared with the air conditioner indoor unit adopting the volute tongue with the existing structure, the air conditioner indoor unit adopting the volute tongue has the advantage that the noise generated in the running process is averagely reduced by about 2dB (A).
Drawings
FIG. 1 is a schematic cross-sectional view of a volute tongue for an indoor unit of an air conditioner according to the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of a volute tongue for an indoor unit of an air conditioner according to the present invention;
FIG. 3 is a schematic view of an embodiment of an indoor unit of an air conditioner according to the present invention;
FIG. 4 is a graph showing the comparison of noise spectrum of an air conditioner indoor unit in speed gear 1 using a volute tongue of the invention and a conventional volute tongue;
FIG. 5 is a graph showing the noise spectrum of the air conditioner indoor unit in the speed gear 2, using the volute tongue of the invention and using the existing volute tongue;
marked in the figure as: the scroll blade body 100, the first curved surface section 110, the second curved surface section 120, the upper curved surface section 121, the lower curved surface section 122, the third curved surface section 130, the scroll blade wind guiding top surface 140, the scroll blade top hanging fastener 150, the scroll blade bottom end lap joint surface 160, the volute 200, the indoor unit panel 300, the cross-flow fan 400, the C-shaped evaporator 500 and the indoor unit cover plate 600.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, the volute tongue for the indoor unit of the air conditioner comprises a volute tongue body 100, wherein an air guide surface is arranged on the volute tongue body 100; the wind guiding surface is of a U-shaped structure and comprises a first curved surface section 110, a second curved surface section 120 and a third curved surface section 130 which are connected together in a smooth transition mode in sequence. After the volute tongue is installed on the indoor unit of the air conditioner, the first curved surface section 110 corresponds to the C-shaped evaporator 500, the second curved surface section 120 corresponds to the cross-flow fan 400, and the third curved surface section 130 corresponds to the air outlet of the indoor unit; in order to ensure the air guiding effect, the arc radius of the first curved surface section 110 is generally required to be larger than that of the second curved surface section 120; in order to reduce wind resistance and enhance the air-supplying capability of the air conditioner, the third curved surface section 130 should be as smooth as possible, so that the radius of the arc of the third curved surface section 130 is generally required to be larger than that of the first curved surface section 110. Through setting the wind-guiding face of volute tongue body 100 to the U-shaped structure that is in the same place by first curved surface section 110, second curved surface section 120 and third curved surface section 130 smooth transitional coupling in proper order, can reduce the windage and improve the air supply ability of volute tongue, do benefit to the air outlet department that makes the air-out along the wind-guiding face by water conservancy diversion to the air conditioner indoor set to avoided the air-out of direct impact on volute tongue body 100 to be bounced and cause the turbulent flow, guaranteed the homogeneity of air-out, also avoided the air-out to surging the phenomenon simultaneously, effectively reduced the noise that the air conditioner indoor set produced when operation, promoted user experience.
The inventors found and demonstrated that the respective arc radii R of the first curved surface section 110, the second curved surface section 120, and the third curved surface section 130 constituting the air guiding surface 1 、R 2 And R is 3 When the ratio is 40-50:14-17:85-92, the volute tongue for the air conditioner indoor unit with the structure has the lowest influence on noise generation, namely the noise caused by the volute tongue in the running process of the air conditioner indoor unit can be reduced to a very low degree.
On the basis of the above, in order to achieve better noise reduction effect, the second curved surface section 120 comprises an upper curved surface section 121 and a lower curved surface section 122 which are connected together in a smooth transition manner, and the arc radiuses of the upper curved surface section 121 and the lower curved surface section 122 are respectively R 21 And R is 22 ，R 21 ：R 22 ＝14～17:14～17。
Preferably, the volute tongue body 100 is further provided with a mounting and connecting structure, and the mounting and connecting structure comprises a volute tongue wind guiding top surface 140, a volute tongue top hanging fastener 150 and a volute tongue bottom end lap surface 160; the volute tongue wind-guiding top surface 140 is in smooth transition connection with the first curved surface section 110, and the volute tongue bottom end lap surface 160 is in smooth transition connection with the third curved surface section 130; one end of the tongue top catch 150 is connected to the tongue wind-guiding top surface 140, and the other end faces the tongue bottom overlap surface 160. When the scroll tongue for the air conditioner indoor unit is installed in the air conditioner indoor unit body, the scroll tongue top hanging fastener 150 is hung and buckled on the top of the inner end of the indoor unit cover plate 600, then the lap joint surface 16 at the bottom end of the scroll tongue is lapped with the bottom of the inner end of the indoor unit cover plate 600, and the scroll tongue is fixed by a connecting piece.
In order to improve the stability of the hook and loop engagement, as shown in fig. 1, the inner side of the tongue top hook 150 has a ">" engagement structure with an included angle greater than 90 °.
Specifically, as shown in fig. 2, the tongue top fastening members 150 are more than two and are distributed at intervals along the length direction of the tongue body 100.
As shown in fig. 3, the indoor unit of the air conditioner comprises a volute 200, an indoor unit panel 300, a cross-flow fan 400, a C-shaped evaporator 500, an indoor unit cover plate 600, and any one of the above-mentioned scroll tongues for the indoor unit of the air conditioner;
the scroll case 200 is arranged opposite to the indoor unit panel 300, the C-shaped evaporator 500 is arranged between the scroll case 200 and the indoor unit panel 300, the cross-flow fan 400 is arranged between the scroll case 200 and the C-shaped evaporator 500, the indoor unit cover plate 600 is arranged at the bottom of the indoor unit panel 300, and an indoor unit air outlet is formed between the indoor unit cover plate 600 and the bottom of the scroll case 200;
the volute tongue body 100 is disposed at the inner end of the indoor unit cover 600, the air guiding surface of the volute tongue body faces the center part in the volute 200, the first curved surface section 110 corresponds to the C-shaped evaporator 500, the second curved surface section 120 corresponds to the cross-flow fan 400, and the third curved surface section 130 corresponds to the indoor unit air outlet.
In order to make the air outlet of the indoor unit of the air conditioner smoother and more natural, it is preferable to adjust the distance between the volute tongue body 100 and the cross-flow fan 400 to 10mm to 20mm.
Example 1
The volute tongue for the indoor unit of the air conditioner comprises a volute tongue body 100, wherein an air guide surface is arranged on the volute tongue body 100; the wind guide surface is of a U-shaped structure and comprises a first curved surface section 110, a second curved surface section 120 and a third curved surface section 130 which are sequentially and smoothly connected together in a transitional manner; wherein, the arc radius R of the first curved surface section 110 1 The arc radius R of the second curved surface section 120 is 20 mm-25 mm 2 The radius R of the third curved surface section 130 is 7.0 mm-8.5 mm 3 42.5 mm-46 mm.
As shown in fig. 4 and 5, the indoor unit of an air conditioner using the volute tongue according to embodiment 1 of the present invention has significantly less noise generated during operation, and can reduce the noise by 2-3 db under the same operation condition as the indoor unit of an air conditioner using the conventional volute tongue.
Example 2
The volute tongue for the indoor unit of the air conditioner comprises a volute tongue body 100, wherein an air guide surface is arranged on the volute tongue body 100; the wind-guiding surface is of a U-shaped structure and comprises a first curved surface section 110, a second curved surface section 120 and a third curved surface section 130 which are connected together in a smooth transition way in sequence, the second curved surface section 120 comprises an upper curved surface section 121 and a lower curved surface section 122 which are connected together in a smooth transition way, the upper curved surface section 121 is connected with the first curved surface section 110 in a smooth transition way,the lower curved surface section 122 is in smooth transition connection with the third curved surface section 130; wherein, the arc radius R of the first curved surface section 110 1 The arc radius R of the upper curved surface section 121 is 20 mm-25 mm 21 The arc radius R of the lower curved surface section 122 is 7.0 mm-8.5 mm 22 The radius R of the third curved surface section 130 is 7.0 mm-8.5 mm 3 42.5 mm-46 mm.
Claims (7)
1. The volute tongue for the indoor unit of the air conditioner comprises a volute tongue body (100), wherein the volute tongue body (100) is provided with an air guide surface; the method is characterized in that: the wind guide surface is of a U-shaped structure and comprises a first curved surface section (110), a second curved surface section (120) and a third curved surface section (130) which are connected together in a smooth transition mode in sequence; the arc radiuses of the first curved surface section (110), the second curved surface section (120) and the third curved surface section (130) are respectively R 1 、R 2 And R is 3 ，R 1 :R 2 :R 3 =40 to 50:14 to 17:85 to 92; the second curved surface section (120) comprises an upper curved surface section (121) and a lower curved surface section (122) which are connected together in a smooth transition manner, and the arc radiuses of the upper curved surface section (121) and the lower curved surface section (122) are respectively R 21 And R is 22 ，R 21 ：R 22 =14 to 17:14 to 17; the volute tongue body (100) is also provided with a mounting and connecting structure, and the mounting and connecting structure comprises a volute tongue wind-guiding top surface (140), a volute tongue top hanging fastener (150) and a volute tongue bottom end lap surface (160); the volute tongue wind-guiding top surface (140) is in smooth transition connection with the first curved surface section (110), and the volute tongue bottom end lap joint surface (160) is in smooth transition connection with the third curved surface section (130); one end of the volute tongue top hanging fastener (150) is connected with the volute tongue wind-guiding top surface (140), and the other end of the volute tongue top hanging fastener faces towards the volute tongue bottom end lap surface (160).
2. The volute tongue for an indoor unit of an air conditioner of claim 1, wherein: the arc radius R of the first curved surface section (110) 1 Is 20 mm-25 mm, and the arc radius R of the second curved surface section (120) 2 Is 7.0mm to 8.5mm, and the arc radius R of the third curved surface section (130) 3 42.5 mm-46 mm.
3. The volute tongue for an indoor unit of an air conditioner of claim 1, wherein: the arc radius R of the upper curved surface section (121) 21 Is 7.0mm to 8.5mm, and the arc radius R of the lower curved surface section (122) 22 7.0mm to 8.5mm.
4. The volute tongue for an indoor unit of an air conditioner of claim 1, wherein: the inner side surface of the volute tongue top hanging fastener (150) is of a' shape matching structure with an included angle larger than 90 degrees.
5. The volute tongue for an indoor unit of an air conditioner of claim 4, wherein: the volute tongue top hanging fasteners (150) are more than two and distributed at intervals along the length direction of the volute tongue body (100).
6. The indoor unit of the air conditioner is characterized in that: comprising a volute tongue for an indoor unit of an air conditioner according to any one of claims 1 to 5.
7. The indoor unit of an air conditioner as set forth in claim 6, wherein: the indoor unit comprises a volute (200), an indoor unit panel (300), a cross-flow fan (400), a C-shaped evaporator (500) and an indoor unit cover plate (600);
the scroll casing (200) is arranged opposite to the indoor unit panel (300), the C-shaped evaporator (500) is arranged between the scroll casing (200) and the indoor unit panel (300), the cross-flow fan (400) is arranged between the scroll casing (200) and the C-shaped evaporator (500), the indoor unit cover plate (600) is arranged at the bottom of the indoor unit panel (300), and an indoor unit air outlet is formed between the indoor unit cover plate (600) and the bottom of the scroll casing (200);
the volute tongue body (100) is arranged at the inner end of the indoor unit cover plate (600), the air guide surface of the volute tongue body faces to the central part in the volute (200), the first curved surface section (110) corresponds to the C-shaped evaporator (500), the second curved surface section (120) corresponds to the through-flow fan (400), and the third curved surface section (130) corresponds to the air outlet of the indoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711034958.2A CN107702306B (en) | 2017-10-30 | 2017-10-30 | Volute tongue for air conditioner indoor unit and air conditioner indoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711034958.2A CN107702306B (en) | 2017-10-30 | 2017-10-30 | Volute tongue for air conditioner indoor unit and air conditioner indoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702306A CN107702306A (en) | 2018-02-16 |
| CN107702306B true CN107702306B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711034958.2A Active CN107702306B (en) | 2017-10-30 | 2017-10-30 | Volute tongue for air conditioner indoor unit and air conditioner indoor unit |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110748975B (en) * | 2018-07-18 | 2023-04-07 | 青岛海尔空调器有限总公司 | Integrated air conditioner |
| CN109059232B (en) * | 2018-10-24 | 2024-05-10 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
| CN109237626A (en) * | 2018-10-31 | 2019-01-18 | 四川长虹空调有限公司 | Air conditioner room unit volute tongue and air conditioner room unit |
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| Publication number | Publication date |
|---|---|
| CN107702306A (en) | 2018-02-16 |
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