CN104515281A - Double-suction type ventilation device and air conditioner - Google Patents
Double-suction type ventilation device and air conditioner Download PDFInfo
- Publication number
- CN104515281A CN104515281A CN201310464642.2A CN201310464642A CN104515281A CN 104515281 A CN104515281 A CN 104515281A CN 201310464642 A CN201310464642 A CN 201310464642A CN 104515281 A CN104515281 A CN 104515281A
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- China
- Prior art keywords
- double
- air
- wall
- suction type
- snail tongue
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- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 30
- 241000237858 Gastropoda Species 0.000 claims description 47
- 230000007704 transition Effects 0.000 claims description 26
- 238000004088 simulation Methods 0.000 abstract 1
- 210000002105 tongue Anatomy 0.000 description 37
- 238000004378 air conditioning Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012795 verification Methods 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
- F24F13/02—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)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a double-suction type ventilation device and an air conditioner. After the lower wall surface of the air outlet cavity is staggered by a certain angle, the collision of the air outlet at the volute tongue has time difference, so that different vibration frequencies are formed, and the noise enhancement under the same vibration frequency is avoided. Meanwhile, the air conditioner using the double-suction type ventilation device can increase the air inlet volume of the air conditioner, improve the heat exchange efficiency of the air conditioner and improve the energy efficiency. The double-suction volute with the optimized structure is combined, the system noise is effectively reduced, and the problem of noise attached after the air quantity is increased is solved. When the simulation verifies, the noise of the air conditioner can be reduced by about two decibels, and the air quantity is improved by about 5%.
Description
Technical field
The present invention relates to the technical field of air conditioner ventilation device, particularly relate to a kind of double-suction type ventilation unit and air-conditioner.
Background technology
The ventilation unit of air-conditioner includes fan blade and air channel, and conventional fan blade has centrifugal wind wheel, and air channel adopts spiral case.Existing air-conditioner, great majority use single-suction centrifugal wind wheel, and not only intake is little but also noise large for single-suction centrifugal wind wheel, along with the propelling of energy-saving and emission-reduction policy, require more and more higher to the efficiency of air-conditioning.For this reason, field of air conditioning brings into use double-suction type centrifugal wind wheel and double suction air channel, and double-suction type centrifugal wind wheel can from fan blade both sides air intake, from the both sides air draught of double suction air channel.Adopting double suction air channel to compare single suction air channel, to have air quantity high, because double-suction type centrifugal wind wheel both sides all can air intake, large compared with single suction wind wheel air quantity, can improve air-conditioner heat exchange efficiency; And under equal efficiency level, then can reduce costs.But for double-suction type centrifugal wind wheel and double suction air channel, after air intake, the air-flow of both sides converges near fan blade dividing plate, form powerful blast, thus cause blast large at the position, snail tongue stage casing in double suction air channel, vibration is large, the defect that noise is also large, the snail tongue middle part pressure that software simulation experiment also shows double suction air channel is bigger than normal.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of double-suction type ventilation unit, adopts the spiral case after optimizing snail tongue and air-out chamber, increases intake, the noise of effective reduction system.
Another technical problem to be solved by this invention is to provide a kind of air-conditioner, uses above-mentioned double-suction type ventilation unit, and the noise of effective reduction system, increases intake simultaneously, improves heat exchange efficiency, improves efficiency.
The present invention is achieved through the following technical solutions:
Double-suction type ventilation unit, includes: double-suction type centrifugal wind wheel and double suction air channel, and double-suction type centrifugal wind wheel is arranged in the inner chamber in double suction air channel; Described double suction air channel comprises double-suction type spiral case; Described double-suction type spiral case includes snail tongue, and the inner chamber of double-suction type spiral case includes air draught chamber and air-out chamber, the described region of snail tongue between air draught chamber and air-out chamber; Described air draught chamber is provided with two air inlets, and the outer end in air-out chamber is air outlet; Wherein, the lower wall surface in described air-out chamber includes the first wall and the second wall, and the plane residing for described first wall and the Plane intersects residing for the second wall are angle theta, and described first wall and the second wall are all connected with snail tongue upper surface.
Wherein in an embodiment, angle theta is 0.5 ~ 5 degree.
Further, double-suction type centrifugal wind wheel is provided with the median septum perpendicular with center line, and the both sides of described median septum are centrifuge blade.
Further, connected between described first wall and the second wall by transition face, the plane residing for the median plane of the plane residing for described transition face and described median septum is same plane.
Or connected by transition face between described first wall and the second wall, described transition face is an inclined plane; The center line of the vertical direction of described transition face is positioned in the plane residing for median plane of described median septum.
Further, described snail tongue includes the first snail tongue portion and the second snail tongue portion of mutual dislocation, and the upper surface of the first snail tongue portion is connected with the first wall and tangent, and the upper surface of the second snail tongue portion is connected with the second wall and tangent.
Air-conditioner, includes body and is arranged in the above-mentioned double-suction type ventilation unit of body inner chamber.
Further, described air-conditioner is a kind of floor air conditioner.
Beneficial effect of the present invention is as follows:
Double-suction type ventilation unit of the present invention and air-conditioner, double-suction type ventilation unit includes double-suction type centrifugal wind wheel and double suction air channel, double suction air channel comprises double-suction type spiral case, the lower wall surface in its air-out chamber includes the first wall and the second wall, plane residing for described first wall and the Plane intersects residing for the second wall are angle theta, and described first wall and the second wall are all connected with snail tongue upper surface.Because the lower wall surface in air-out chamber staggers after certain angle, make air-out poor in the collision life period at snail tongue place, and form different vibration frequencies, avoid the reinforcement of noise under same vibration frequency.Meanwhile, use the air-conditioner of this double-suction type ventilation unit, air-conditioner intake can be increased, air-conditioner heat exchange efficiency can be improved, improve efficiency.In conjunction with the double-suction type spiral case after optimizing structure, and by air channel interior walls be smooth transition, effectively reduce system noise, solve noise problem subsidiary after increasing air quantity.During air-conditioner simplation verification of the present invention, noise can reduce about two decibels, and air quantity improves about 5%.
Accompanying drawing explanation
Fig. 1 be double-suction type ventilation unit of the present invention face structural representation;
Fig. 2 is the plan structure schematic diagram of double-suction type ventilation unit of the present invention;
Fig. 3 is the perspective view of double-suction type ventilation unit of the present invention.
Detailed description of the invention
The present invention, in order to solve the problem of prior art, proposes a kind of double-suction type ventilation unit, as shown in Figure 1, Figure 2, Figure 3 shows, includes: double-suction type centrifugal wind wheel 1 and double suction air channel, and double-suction type centrifugal wind wheel 1 is arranged in the inner chamber in double suction air channel; Described double suction air channel comprises double-suction type spiral case 2; Described double-suction type spiral case 2 includes snail tongue, and the inner chamber of double-suction type spiral case 2 includes air draught chamber and air-out chamber 3, the described region of snail tongue between air draught chamber and air-out chamber 3; Described air draught chamber is provided with two air inlets, and the outer end in air-out chamber 3 is air outlet; Wherein, the lower wall surface in described air-out chamber 3 includes the first wall 211 and the second wall 221, plane residing for described first wall 211 and the Plane intersects residing for the second wall 221 are angle theta, and described first wall 211 is all connected with snail tongue upper surface with the second wall 221.
Wherein in an embodiment, angle theta is 0.5 ~ 5 degree.
Further, double-suction type centrifugal wind wheel 1 is provided with the median septum 11 perpendicular with center line, and the both sides of described median septum 11 are centrifuge blade.
Further, connected by transition face 23 between described first wall 211 and the second wall 221, the plane residing for described transition face 23 and the plane residing for median plane of described median septum 11 are same plane.
Or connected by transition face 23 between described first wall 211 and the second wall 221, described transition face 23 is an inclined plane; The center line M of the vertical direction of described transition face 23 is positioned in the plane residing for median plane of described median septum 11.
Further, the upper surface of the first snail tongue portion 21 and the second snail tongue portion 22, first snail tongue portion 21 that described snail tongue includes mutual dislocation is connected with the first wall 211 and tangent, and the upper surface of the second snail tongue portion 22 is connected with the second wall 221 and tangent.
Between described transition face 23 with the first wall 211, carry out rounding off formula by hollows between transition face 23 with the second wall 221 and be connected.
Described first snail tongue portion 21 is positioned at below the second snail tongue portion 22, and the first wall 211 is connected with the bottom of transition face 23, and the second wall 221 is connected with the top of transition face 23.
The present invention, in order to solve the problem of prior art, also proposed a kind of air-conditioner, includes body and is arranged in the above-mentioned double-suction type ventilation unit of body inner chamber.
Further, described air-conditioner is a kind of floor air conditioner.
The present invention adopts the air-conditioner of double-suction type ventilation unit, is generally floor air conditioner.The double-suction type spiral case 2 of this double-suction type ventilation unit, can both sides air intake, spiral case has the first snail tongue portion and the second snail tongue portion of the certain angle that staggers, and forms one in front and one in back two different snail tongue portion; Double-suction type centrifugal wind wheel 1 can both sides air intake, and middle being separated by median septum 11 becomes two air-inlet cavities.
Single suction air channel is compared in existing double suction air channel, and to have air quantity high, the advantage that noise is low, but, because both sides, double suction air channel all can air intake, after air intake, the air intake of both sides converges near the median septum of double-suction type centrifugal wind wheel, forms powerful blast, thus cause dynamic pressure large at the position, snail tongue stage casing of double-suction type spiral case, vibration is large, and noise is also large, and it is bigger than normal that software simulation also shows snail tongue middle part pressure.
According to above-mentioned phenomenon, because snail tongue is larger on the impact of centrifugal air duct system noise, the present invention adopts snail tongue from the certain angle that staggers near median septum position, namely, snail tongue start to misplace angle position be seated after median septum 11 position adapt (namely transition face is just in time divided equally by the plane at the median plane place of median septum), the air-out of double-suction type centrifugal wind wheel 1 is made to form surrounding time at snail tongue place poor, avoid air-out to collide with snail tongue simultaneously, form the vibration of same frequency, cause the reinforcement vibrated.Therefore can weaken the vibration of snail tongue place after staggering, thus reduce noise.
Especially, the angle theta of the plane residing for the first wall 211 and the Plane intersects residing for the second wall 221 can be 0.5 ~ 5 degree, and offset angular is too small, and the section difference staggered in snail tongue place is little, causes noise effect of optimization not obvious; Offset angular is too large, then after staggering, snail tongue and fan blade gap are too large, and air quantity will sharply reduce.Actual optimum value to coordinate from spiral case with different fan blade and different, determines, as air quantity surplus is comparatively large, suitably can strengthens offset angular, sacrificial section air quantity, but can reduce noise according to the balance of air quantity and noise.
The mode adopting arc surface or plane to add hollows between first wall 211 in air-out chamber 3 and the second wall 221 after offset angular seamlessly transits, although because two snail tongues to be staggered certain angle, but two air channels can not be separated completely, the flowing of air-flow will inevitably be there is each other, so transition face adopts arc surface, or the mode that tapered plane two ends fillet seamlessly transits, makes the flowing of air in spiral case more smooth and easy, is also conducive to the reduction of noise.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. double-suction type ventilation unit, includes: double-suction type centrifugal wind wheel and double suction air channel, and double-suction type centrifugal wind wheel is arranged in the inner chamber in double suction air channel; Described double suction air channel comprises double-suction type spiral case; Described double-suction type spiral case includes snail tongue, and the inner chamber of double-suction type spiral case includes air draught chamber and air-out chamber, the described region of snail tongue between air draught chamber and air-out chamber; Described air draught chamber is provided with two air inlets, and the outer end in air-out chamber is air outlet; It is characterized in that, the lower wall surface in described air-out chamber includes the first wall and the second wall, and the plane residing for described first wall and the Plane intersects residing for the second wall are angle theta, and described first wall and the second wall are all connected with snail tongue upper surface.
2. double-suction type ventilation unit according to claim 1, is characterized in that, described angle theta is 0.5 ~ 5 degree.
3. double-suction type ventilation unit according to claim 2, is characterized in that, described double-suction type centrifugal wind wheel is provided with the median septum perpendicular with center line, and the both sides of described median septum are centrifuge blade.
4. double-suction type ventilation unit according to claim 3, is characterized in that, is connected between described first wall and the second wall by transition face, and the plane residing for the median plane of the plane residing for described transition face and described median septum is same plane.
5. double-suction type ventilation unit according to claim 3, is characterized in that, is connected between described first wall and the second wall by transition face, and described transition face is an inclined plane; The center line of the vertical direction of described transition face is positioned in the plane residing for median plane of described median septum.
6. the double-suction type ventilation unit according to claim 4 or 5, it is characterized in that, described snail tongue includes the first snail tongue portion and the second snail tongue portion of mutual dislocation, the upper surface of the first snail tongue portion is connected with the first wall and tangent, and the upper surface of the second snail tongue portion is connected with the second wall and tangent.
7. the double-suction type ventilation unit according to claim 4 or 5, is characterized in that, carries out rounding off formula be connected between described transition face with the first wall, between transition face with the second wall by hollows.
8. double-suction type ventilation unit according to claim 6, is characterized in that, described first snail tongue portion is positioned at below the second snail tongue portion, and the first wall is connected with the bottom of transition face, and the second wall is connected with the top of transition face.
9. air-conditioner, includes body, it is characterized in that, also comprise be arranged in body inner chamber according to the double-suction type ventilation unit of claim 1 to 8 described in any one.
10. air-conditioner according to claim 9, is characterized in that, described air-conditioner is a kind of floor air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464642.2A CN104515281A (en) | 2013-10-08 | 2013-10-08 | Double-suction type ventilation device and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310464642.2A CN104515281A (en) | 2013-10-08 | 2013-10-08 | Double-suction type ventilation device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104515281A true CN104515281A (en) | 2015-04-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310464642.2A Pending CN104515281A (en) | 2013-10-08 | 2013-10-08 | Double-suction type ventilation device and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104515281A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443226A (en) * | 2018-05-17 | 2018-08-24 | 珠海格力电器股份有限公司 | Stepped volute structure, centrifugal fan and blower device |
| CN110388735A (en) * | 2019-08-16 | 2019-10-29 | 东明兴业科技股份有限公司 | The exhaust air flue and air purifier or new blower of horizontal type through-flow blower are installed |
| CN112432355A (en) * | 2020-12-03 | 2021-03-02 | 珠海格力电器股份有限公司 | Volute assembly, air supply assembly and air conditioning system |
| EP3954902A4 (en) * | 2019-04-12 | 2022-11-02 | Qingdao Haier Drum Washing Machine Co., Ltd. | Housing of centrifugal fan, centrifugal fan and clothes dryer |
| CN115479043A (en) * | 2021-05-31 | 2022-12-16 | 广州华凌制冷设备有限公司 | Centrifugal wind wheel, centrifugal fan and air conditioner |
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| CN2690638Y (en) * | 2004-02-09 | 2005-04-06 | 谢东文 | Structure of double sustion turbine fan |
| CN101451542A (en) * | 2007-12-06 | 2009-06-10 | 三星电子株式会社 | Blower and air conditioner having the same |
| US20100104421A1 (en) * | 2008-10-23 | 2010-04-29 | Foxconn Technology Co., Ltd. | Cooling fan |
| CN101725573A (en) * | 2008-10-13 | 2010-06-09 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN203550148U (en) * | 2013-10-08 | 2014-04-16 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
-
2013
- 2013-10-08 CN CN201310464642.2A patent/CN104515281A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2690638Y (en) * | 2004-02-09 | 2005-04-06 | 谢东文 | Structure of double sustion turbine fan |
| CN101451542A (en) * | 2007-12-06 | 2009-06-10 | 三星电子株式会社 | Blower and air conditioner having the same |
| CN101725573A (en) * | 2008-10-13 | 2010-06-09 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| US20100104421A1 (en) * | 2008-10-23 | 2010-04-29 | Foxconn Technology Co., Ltd. | Cooling fan |
| CN203550148U (en) * | 2013-10-08 | 2014-04-16 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443226A (en) * | 2018-05-17 | 2018-08-24 | 珠海格力电器股份有限公司 | Stepped volute structure, centrifugal fan and blower device |
| EP3954902A4 (en) * | 2019-04-12 | 2022-11-02 | Qingdao Haier Drum Washing Machine Co., Ltd. | Housing of centrifugal fan, centrifugal fan and clothes dryer |
| CN110388735A (en) * | 2019-08-16 | 2019-10-29 | 东明兴业科技股份有限公司 | The exhaust air flue and air purifier or new blower of horizontal type through-flow blower are installed |
| CN112432355A (en) * | 2020-12-03 | 2021-03-02 | 珠海格力电器股份有限公司 | Volute assembly, air supply assembly and air conditioning system |
| CN115479043A (en) * | 2021-05-31 | 2022-12-16 | 广州华凌制冷设备有限公司 | Centrifugal wind wheel, centrifugal fan and air conditioner |
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Application publication date: 20150415 |
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| RJ01 | Rejection of invention patent application after publication |