CN104807095B - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN104807095B CN104807095B CN201510234054.9A CN201510234054A CN104807095B CN 104807095 B CN104807095 B CN 104807095B CN 201510234054 A CN201510234054 A CN 201510234054A CN 104807095 B CN104807095 B CN 104807095B
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- CN
- China
- Prior art keywords
- air
- volute tongue
- air duct
- air outlet
- centrifugal impeller
- 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.)
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Links
- 238000007789 sealing Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0022—Centrifugal or radial fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
-
- 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)
Abstract
The present invention provides an air conditioner, comprising: a bottom case; the air duct cover plate is connected with the bottom shell, and an air duct is formed between the bottom shell and the air duct cover plate; the centrifugal impeller is pivotally arranged on the bottom shell and is positioned in the air channel; the volute tongue is positioned at the air outlet of the air duct, a volute tongue gap for connecting the inner side area of the air duct and the air outlet area is formed between the volute tongue and the centrifugal impeller, a pressure relief channel for communicating the inner side area of the air duct and the air outlet area is arranged at the volute tongue, and the pressure relief channel is positioned on the radial outer side of the volute tongue gap, which is far away from the centrifugal impeller. Because the volute tongue is provided with the pressure relief channel, when wind flows between the inner side area and the air outlet area, a part of air pressure is guided and relieved through the pressure relief channel, so that the air pressure at the volute tongue is reduced, the noise at the air outlet, particularly at the volute tongue is effectively reduced, the vibration of the air conditioner is reduced, the operation reliability of the air conditioner is improved, and the use comfort of a user is improved.
Description
Technical Field
The invention relates to the technical field of heat exchange equipment, in particular to an air conditioner.
Background
The volute tongue is used as a part of the air duct molded line and has the function of guiding the wind direction.
In the prior art, the height of the volute tongue is the same as that of the air duct, and the volute tongue is not provided with a pressure relief channel, so that the problems of high air pressure and serious noise at the volute tongue exist in an air outlet (especially a multi-air-port air conditioner capable of independently controlling air outlet of the air outlet).
Disclosure of Invention
The invention mainly aims to provide an air conditioner to solve the problems of high air pressure and serious noise at a volute tongue in the prior art.
In order to achieve the above object, the present invention provides an air conditioner including: a bottom case; the air duct cover plate is connected with the bottom shell, and an air duct is formed between the bottom shell and the air duct cover plate; the centrifugal impeller is pivotally arranged on the bottom shell and is positioned in the air channel; the volute tongue is positioned at the air outlet of the air duct, a volute tongue gap for connecting the inner side area of the air duct and the air outlet area is formed between the volute tongue and the centrifugal impeller, a pressure relief channel for communicating the inner side area of the air duct and the air outlet area is arranged at the volute tongue, and the pressure relief channel is positioned on the radial outer side of the volute tongue gap, which is far away from the centrifugal impeller.
Furthermore, the pressure relief channel is a communication hole and/or a communication groove which are arranged on the volute tongue.
Further, the thickness of the volute tongue is smaller than that of the air duct.
Further, a pressure relief channel is formed between the volute tongue and the air duct cover plate and/or between the volute tongue and the bottom shell.
Further, the surface of the volute tongue facing to the air duct side is a part of the air duct wall surface of the air duct.
Further, the thickness of the volute tongue is equal to that of the centrifugal impeller.
Furthermore, the volute tongue is provided with a first surface close to one side of the air duct cover plate, and the first surface of the volute tongue is flush with the surface of the centrifugal impeller close to one side of the air duct cover plate.
Further, the volute tongue has a second surface close to one side of the bottom shell, and the second surface of the volute tongue is flush with the surface of the centrifugal impeller close to one side of the bottom shell.
Furthermore, the air duct has two air outlets with different air outlet directions, the air conditioner further comprises two air outlet baffles which are arranged in a pivoting mode, the two air outlet baffles and the two air outlets are arranged in a one-to-one correspondence mode, each air outlet baffle is provided with a first position for avoiding the air outlet and a second position for sealing the corresponding air outlet, and the volute tongue is located on the inner side of the air outlet baffle.
Further, when the air outlet baffle is located at the first position, the air outlet baffle is overlapped with the surface of the bottom shell and/or the air duct cover plate so as to open the air outlet.
According to the technical scheme, the bottom shell is connected with the air duct cover plate to form the air duct, the centrifugal impeller is pivotally arranged on the bottom shell and located in the air duct, the volute tongue is located at the air outlet of the air duct, a volute tongue gap for connecting the inner side area of the air duct and the air outlet area is formed between the volute tongue and the centrifugal impeller, a pressure relief channel for communicating the inner side area of the air duct and the air outlet area is arranged at the volute tongue, and the pressure relief channel is located on the outer side of the volute tongue gap, far away from the radial direction of the centrifugal impeller. Because the volute tongue is provided with the pressure relief channel, when wind flows between the inner side area and the air outlet area, a part of air pressure is guided and relieved through the pressure relief channel, so that the air pressure at the volute tongue is reduced, the noise at the air outlet, particularly at the volute tongue is effectively reduced, the vibration of the air conditioner is reduced, the operation reliability of the air conditioner is improved, and the use comfort of a user is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view showing the connection relationship between a bottom case, a centrifugal impeller, a volute tongue and an air outlet baffle in the present invention; and
fig. 2 is a schematic view showing the connection relationship between the bottom casing and the air duct cover plate according to the present invention.
Wherein the figures include the following reference numerals:
10. a bottom case; 20. an air duct cover plate; 30. an air duct; 31. an inner region; 32. an air outlet area; 33. a volute tongue gap; 34. a pressure relief channel; 40. a centrifugal impeller; 50. a volute tongue; 60. an air outlet baffle.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, the terms of orientation such as "inside and outside" used in the case where no description is made to the contrary refer to the inside and outside with respect to the outline of each member itself, but the above terms of orientation are not intended to limit the present invention.
The invention provides an air conditioner, aiming at solving the problems of high air pressure and serious noise at a volute tongue in the prior art.
As shown in fig. 1 and 2, the air conditioner includes a bottom case 10, an air duct cover plate 20 connected to the bottom case 10, a centrifugal impeller 40, and a volute tongue 50, wherein an air duct 30 is formed between the bottom case 10 and the air duct cover plate 20, the centrifugal impeller 40 is pivotally disposed on the bottom case 10 and located in the air duct 30, the volute tongue 50 is located at an air outlet of the air duct 30, a volute tongue gap 33 connecting an inner side area 31 of the air duct 30 and an air outlet area 32 is formed between the volute tongue 50 and the centrifugal impeller 40, a pressure relief channel 34 for communicating the inner side area 31 and the air outlet area 32 of the air duct 30 is disposed at the volute tongue 50, and the pressure relief channel 34 is located at a radial outer side of the volute tongue gap 33, which is far.
Because the volute tongue 50 is provided with the pressure relief channel 34, when wind flows between the inner side area 31 and the air outlet area 32, a part of air pressure is guided and relieved through the pressure relief channel 34, so that the air pressure at the volute tongue 50 is reduced, the noise at the air outlet, particularly at the volute tongue 50 is effectively reduced, the vibration of the air conditioner is reduced, the operation reliability of the air conditioner is improved, and the use comfort of a user is improved.
The surface of the volute tongue 50 facing the air duct 30 is a part of the air duct wall surface of the air duct 30. At this point, the volute tongue 50 is disposed against and as part of the duct wall of the duct 30.
Preferably, the thickness of the volute tongue 50 is less than the thickness of the air duct 30. Because the thickness of the volute tongue 50 is smaller than that of the air duct 30, the pressure relief channel 34 is formed at the volute tongue 50, when the outlet air passes through the volute tongue 50, part of the outlet air is guided away through the pressure relief channel 34, so that the air pressure at the volute tongue gap 33 is reduced, namely, the air pressure at the volute tongue 50 is reduced, the operation noise and vibration of the air conditioner are reduced, and the operation reliability of the air conditioner is improved.
Specifically, the volute tongue 50 forms a pressure relief channel 34 with the duct cover 20 and/or with the bottom case 10. When the thickness of the volute tongue 50 is smaller than that of the air duct 30, there are three schemes for forming the pressure relief channel 34: firstly, a pressure relief channel 34 is formed between the volute tongue 50 and the bottom shell 10; secondly, a pressure relief channel 34 is formed between the volute tongue 50 and the air duct cover plate 20; thirdly, a pressure relief channel is formed between the volute tongue 50 and the bottom shell 10 and the air duct cover plate 20 at the same time. In the former two schemes, the volute tongue 50 is installed in the air duct 30 more stably, and the pressure relief is more reliable.
The inventor's research shows that the thickness of the volute tongue 50 is equal to that of the centrifugal impeller 40. In this case, when the centrifugal impeller 40 is installed, it is preferable that the centrifugal impeller 40 is installed at the same height as the volute tongue 50, so that the pressure relief effect is maximized. Taking the second scheme as an example, when the height of the centrifugal impeller 40 is lower than the volute tongue 50 after the centrifugal impeller is installed, the pressure relief effect is weakened, so that the noise condition cannot be relieved; when the centrifugal impeller 40 is higher than the volute tongue 50 after being installed, a large amount of air is discharged through the pressure discharge channel 34, so that the problems of reduction of effective air discharge amount, air turbulence and the like are caused.
Since there are not less than three options, when installing the centrifugal impeller 40, attention should be paid to the following conditions. The volute tongue 50 has a first surface adjacent to one side of the duct cover 20, and the first surface of the volute tongue 50 is flush with the surface of the centrifugal impeller 40 adjacent to one side of the duct cover 20.
Similarly, it is noted that volute tongue 50 has a second surface adjacent to the side of bottom housing 10, and that the second surface of volute tongue 50 is flush with the surface of centrifugal impeller 40 adjacent to the side of bottom housing 10.
In a preferred embodiment, not shown, the pressure relief channel 34 is a communication hole and/or a communication groove provided on the volute tongue 50. Because the volute tongue 50 is provided with the communicating hole and/or the communicating groove, the discharged air can be decompressed under the flow guiding effect of the communicating hole and/or the communicating groove, and the noise at the volute tongue 50 is effectively reduced.
As shown in fig. 1, the air duct 30 of the present invention has two air outlets with different air outlet directions, the air conditioner further includes two air outlet baffles 60 pivotally disposed, the two air outlet baffles 60 are disposed in one-to-one correspondence with the two air outlets, each air outlet baffle 60 has a first position for avoiding the air outlet and a second position for closing the corresponding air outlet, and the volute tongue 50 is located inside the air outlet baffle 60. In this embodiment, the air duct 30 for outputting cold air or hot air to the outside of the air conditioner has two air outlets with different air outlet directions, each air outlet is provided with an air outlet baffle 60 for controlling the opening and closing of the air outlet, and a user can adjust the air outlet of which air outlet, so that the amplitude of adjusting the air outlet direction is increased, and the comfort level of the user is increased.
Preferably, when the wind outlet baffle 60 is in the first position, the wind outlet baffle 60 overlaps with the surface of the bottom case 10 and/or the duct cover 20 to open the wind outlet. At this time, the outlet air can be smoothly discharged from the outlet.
Preferably, when the wind outlet baffle 60 is in the second position, the wind outlet baffle 60 blocks the wind outlet. When the air conditioner works, the wind blows towards the wind outlet baffle 60, then turns back to pass through the volute tongue 50, then enters the wind channel 30 and flows to the opposite wind outlet (please refer to fig. 1). The simulation analysis shows that the static pressure at the volute tongue 50 on the blocked side in the air duct 30 is the highest, which directly affects the total noise value of the air conditioner, so that the noise at the position is reduced, and the noise reduction effect is achieved for the air conditioner.
Specifically, a first side of the air outlet baffle 60 is pivotally disposed on the bottom case 10, and a second side of the air outlet baffle 60 is a free side (see fig. 1).
Preferably, the surface of the air duct cover plate 20 facing the air duct 30 has a sealing structure, and the second side of the air outlet baffle 60 is tightly fitted with the sealing structure. Due to the sealing structure, the wind shielding reliability of the wind outlet baffle 60 is effectively improved, and the reliability of the adjustment of the multiple wind outlet modes of the air conditioner is ensured.
Further, the sealing structure is a stop step surface arranged on the air duct cover plate, and the second side of the air outlet baffle 60 is matched with the stop step surface. At the second position, the second end of air-out baffle 60 and backstop step face butt have increased area of contact, are favorable to improving sealed effect.
Further, the stop step faces back to the corresponding air outlet. The pressure in the air duct 30 urges the second end of the air outlet baffle 60 to squeeze the stopper step surface, which is beneficial to further improving the sealing effect.
Further, a sealing gasket is arranged between the air outlet baffle 60 and the stopping step surface. Furthermore, the sealing effect is improved, and the air leakage phenomenon is prevented. The sealing gasket can be made of elastic materials such as sponge and rubber.
In order to improve the storage reliability of the outlet damper 60, the surface of the bottom case 10 facing the air duct 30 has a storage recess for storing the outlet damper 60.
One of the two outlets of the air duct 30 of the present invention is formed at an upper portion of the air conditioner, and the other is formed at a lower portion of the air conditioner. In the refrigeration mode, if the user does not like cold air to blow downwards directly, an upward air outlet can be selected; in the heating mode, if the user likes to blow hot air directly, the user can select a downward air outlet. The customer can adjust by which air outlet air-out according to oneself needs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An air conditioner, comprising:
a bottom shell (10);
the air duct cover plate (20) is connected with the bottom shell (10), and an air duct (30) is formed between the bottom shell (10) and the air duct cover plate (20);
a centrifugal impeller (40), wherein the centrifugal impeller (40) is pivotally arranged on the bottom shell (10) and is positioned in the air duct (30);
the volute tongue (50) is positioned at an air outlet of the air duct (30), a volute tongue gap (33) for connecting an inner side area (31) and an air outlet area (32) of the air duct (30) is formed between the volute tongue (50) and the centrifugal impeller (40), a pressure relief channel (34) for communicating the inner side area (31) and the air outlet area (32) of the air duct (30) is arranged at the volute tongue (50), and the pressure relief channel (34) is positioned on the radial outer side, away from the centrifugal impeller (40), of the volute tongue gap (33);
the thickness of the volute tongue (50) is smaller than that of the air duct (30); the volute tongue (50) and the air duct cover plate (20) and/or the bottom shell (10) form the pressure relief channel (34);
the thickness of the volute tongue (50) is equal to that of the centrifugal impeller (40).
2. The air conditioner according to claim 1, characterized in that the pressure relief channel (34) is a communication hole and/or a communication groove formed on the volute tongue (50).
3. The air conditioner according to claim 1, wherein a surface of the volute tongue (50) facing a side of the air duct (30) is a portion of a duct wall surface of the air duct (30).
4. The air conditioner according to claim 1, wherein the volute tongue (50) has a first surface adjacent to a side of the duct cover (20), and the first surface of the volute tongue (50) is flush with a surface of the centrifugal impeller (40) adjacent to the side of the duct cover (20).
5. The air conditioner according to claim 1, wherein the volute tongue (50) has a second surface adjacent to a side of the bottom casing (10), and the second surface of the volute tongue (50) is flush with a surface of the centrifugal impeller (40) adjacent to the side of the bottom casing (10).
6. The air conditioner according to claim 1, wherein the air duct (30) has two air outlets with different air outlet directions, the air conditioner further comprises two air outlet baffles (60) pivotally arranged, the two air outlet baffles (60) are arranged in one-to-one correspondence with the two air outlets, each air outlet baffle (60) has a first position for avoiding the air outlet and a second position for closing the corresponding air outlet, and the volute tongue (50) is located inside the air outlet baffle (60).
7. The air conditioner according to claim 6, wherein when the wind outlet baffle (60) is in the first position, the wind outlet baffle (60) overlaps with a surface of the bottom case (10) and/or the duct cover (20) to open the wind outlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234054.9A CN104807095B (en) | 2015-05-08 | 2015-05-08 | Air conditioner |
| PCT/CN2016/080730 WO2016180250A1 (en) | 2015-05-08 | 2016-04-29 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510234054.9A CN104807095B (en) | 2015-05-08 | 2015-05-08 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104807095A CN104807095A (en) | 2015-07-29 |
| CN104807095B true CN104807095B (en) | 2020-02-21 |
Family
ID=53692158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510234054.9A Active CN104807095B (en) | 2015-05-08 | 2015-05-08 | Air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104807095B (en) |
| WO (1) | WO2016180250A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807095B (en) * | 2015-05-08 | 2020-02-21 | 珠海格力电器股份有限公司 | Air conditioner |
| CN106016661A (en) * | 2016-05-16 | 2016-10-12 | 珠海格力电器股份有限公司 | Air conditioner |
| CN107388535B (en) * | 2017-07-17 | 2022-10-11 | 奥克斯空调股份有限公司 | Air conditioner air duct and volute tongue mounting structure |
| CN107965913A (en) * | 2017-12-15 | 2018-04-27 | 广东美的制冷设备有限公司 | Warm-air drier |
| CN107939734A (en) * | 2017-12-15 | 2018-04-20 | 广东美的制冷设备有限公司 | Air-duct spiral case structure and warm-air drier |
| CN112432355B (en) * | 2020-12-03 | 2022-06-28 | 珠海格力电器股份有限公司 | Volute component, air supply component and air conditioning system |
| CN114198321B (en) * | 2021-12-03 | 2023-10-27 | 合肥联宝信息技术有限公司 | Centrifugal fan with self-adaptive runner |
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| CN203783969U (en) * | 2014-02-14 | 2014-08-20 | 珠海格力电器股份有限公司 | Centrifugal volute and air conditioner |
| CN103835997A (en) * | 2014-03-06 | 2014-06-04 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and volute thereof |
| CN203717447U (en) * | 2014-03-06 | 2014-07-16 | 珠海格力电器股份有限公司 | Air conditioner indoor unit and volute thereof |
| CN204176858U (en) * | 2014-10-23 | 2015-02-25 | 珠海格力电器股份有限公司 | Indoor unit of air conditioner |
| CN204648475U (en) * | 2015-05-08 | 2015-09-16 | 珠海格力电器股份有限公司 | Air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016180250A1 (en) | 2016-11-17 |
| CN104807095A (en) | 2015-07-29 |
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