CN203550148U - Double-suction type ventilation device and air conditioner - Google Patents
Double-suction type ventilation device and air conditioner Download PDFInfo
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- CN203550148U CN203550148U CN201320617114.1U CN201320617114U CN203550148U CN 203550148 U CN203550148 U CN 203550148U CN 201320617114 U CN201320617114 U CN 201320617114U CN 203550148 U CN203550148 U CN 203550148U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 31
- 241000237858 Gastropoda Species 0.000 claims description 47
- 230000007704 transition Effects 0.000 claims description 25
- 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
- 230000015572 biosynthetic process 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
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Abstract
The utility model provides a double suction formula ventilation unit and air conditioner, double suction formula ventilation unit is including double suction formula centrifugal wind wheel and double suction wind channel, and double suction wind channel is including the double suction formula spiral case, and the lower wall in its air-out chamber is including first wall and second wall, and the plane that first wall located and second wall were located intersects and is contained angle theta, first wall and second wall all with spiral tongue upper surface connection. 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 utility model relates to the technical field of air conditioner ventilation device, particularly relates 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 are used single-suction centrifugal wind wheel, and not only intake is little but also noise is large for single-suction centrifugal wind wheel, along with the propelling of energy-saving and emission-reduction policy, to the efficiency of air-conditioning, requires more and more higher.For this reason, field of air conditioning is brought into use double-suction type centrifugal wind wheel and double suction air channel, and double-suction type centrifugal wind wheel can be 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, 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, thereby the position, snail tongue stage casing in double suction air channel causes blast large, vibration is large, also large defect of noise, software simulation experiment also shows that the snail tongue middle part pressure in double suction air channel is bigger than normal.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of double-suction type ventilation unit, adopts the spiral case of optimizing behind snail tongue and air-out chamber, increases intake, effectively reduces the noise of system.
Another technical problem to be solved in the utility model is to provide a kind of air-conditioner, uses above-mentioned double-suction type ventilation unit, effectively reduces the noise of system, increases intake simultaneously, improves heat exchange efficiency, improves efficiency.
The utility model 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 region of described 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 residing plane of described the first wall and the residing Plane intersects of the second wall are angle theta, and described the first wall is all connected with snail tongue upper surface with the second wall.
In an embodiment, angle theta is 0.5～5 degree therein.
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, between described the first wall and the second wall, by transition face, connect, the residing plane of median plane of the residing plane of described transition face and described median septum is same plane.
Or, between described the first wall and the second wall, by transition face, connecting, described transition face is an inclined plane; The center line of the vertical direction of described transition face is positioned in the residing plane of 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 is tangent, and the upper surface of the second snail tongue portion is connected with the second wall and is 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.
The beneficial effects of the utility model are as follows:
Double-suction type ventilation unit of the present utility model 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, the residing plane of described the first wall and the residing Plane intersects of the second wall are angle theta, and described the first wall is all connected with snail tongue upper surface with the second wall.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, can increase air-conditioner intake, can improve air-conditioner heat exchange efficiency, improve efficiency.In conjunction with the double-suction type spiral case after optimizing structure, and air channel inwall is seamlessly transitted, effectively reduce system noise, subsidiary noise problem after solution increase air quantity.During the utility model air-conditioner simplation verification, noise can reduce by two decibels of left and right, and air quantity improves 5% left and right.
Accompanying drawing explanation
Fig. 1 is the structural representation of facing of the utility model double-suction type ventilation unit;
Fig. 2 is the plan structure schematic diagram of the utility model double-suction type ventilation unit;
Fig. 3 is the perspective view of the utility model double-suction type ventilation unit.
The specific embodiment
The utility model, in order to solve the problem of prior art, has proposed 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 region of described 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, the residing plane of described the first wall 211 and the residing Plane intersects of the second wall 221 are angle theta, and described the first wall 211 is all connected with snail tongue upper surface with the second wall 221.
In an embodiment, angle theta is 0.5～5 degree therein.
Further, double-suction type centrifugal wind wheel 1 is provided with the median septum perpendicular with center line 11, and the both sides of described median septum 11 are centrifuge blade.
Further, between described the first wall 211 and the second wall 221, by transition face 23, connect, the residing plane of median plane of the residing plane of described transition face 23 and described median septum 11 is same plane.
Or, between described the first wall 211 and the second wall 221, by transition face 23, connecting, 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 residing plane of median plane of described median septum 11.
Further, described snail tongue includes that the first snail tongue portion 21 of mutual dislocation and the upper surface of the second snail tongue portion 22, the first snail tongue portion 21 are connected with the first wall 211 and is tangent, and the upper surface of the second snail tongue portion 22 is connected also tangent with the second wall 221.
Between described transition face 23 and the first wall 211, between transition face 23 and the second wall 221, by hollows, carry out rounding off formula and be connected.
Described the first snail tongue portion 21 is positioned at the second snail tongue portion 22 belows, 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 utility model, in order to solve the problem of prior art, has 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 utility model 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, has the first snail tongue portion and the second snail tongue portion of the certain angle that staggers on spiral case, 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, middlely by median septum 11, is separated and is become 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, thereby the position, snail tongue stage casing at double-suction type spiral case causes dynamic pressure large, vibration is large, and noise is also large, and software simulation also shows that snail tongue middle part pressure is bigger than normal.
According to above-mentioned phenomenon, because snail tongue is larger on the impact of centrifugal air duct system noise, the utility model adopts snail tongue from the certain angle that staggers near median septum position,, snail tongue start to misplace angle position be seated after median septum 11 positions adapt (plane that is the median plane place of median septum is just in time divided transition face equally), make the air-out of double-suction type centrifugal wind wheel 1 poor at snail tongue place formation surrounding time, avoid air-out to collide with snail tongue simultaneously, form the vibration of same frequency, cause the reinforcement of vibration.Therefore after staggering, can weaken the vibration of snail tongue place, thereby reduce noise.
Especially, the angle theta of the residing plane of the first wall 211 and the second wall 221 residing Plane intersects can be 0.5～5 degree, the angle too small that staggers, and the section staggering in snail tongue place is poor little, causes noise effect of optimization not obvious; The angle that staggers is too large, and after staggering, snail tongue and fan blade gap are too large, and air quantity will sharply reduce.Actual optimum value is different from spiral case cooperation with different fan blades, according to the balance of air quantity and noise, determines, as larger in air quantity surplus, can suitably strengthen the angle that staggers, sacrificial section air quantity, but can reduce noise.
The mode that adopts arc surface or plane to add hollows between first wall 211 in air-out chamber 3 and the second wall 221 after the angle that staggers seamlessly transits, although because by two snail tongues certain angle that staggers, but two air channels can not be separated completely, will inevitably there is each other flowing of air-flow, so transition face adopts arc surface, or the mode that tapered plane two ends seamlessly transit with fillet, make air in spiral case flow more smooth and easy, be also conducive to the reduction of noise.
The above embodiment has only expressed embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent 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 region of described 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 residing plane of described the first wall and the residing Plane intersects of the second wall are angle theta, and described the first wall is all connected with snail tongue upper surface with the second wall.
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, between described the first wall and the second wall, by transition face, connects, and the residing plane of median plane of the residing plane of described transition face and described median septum is same plane.
5. double-suction type ventilation unit according to claim 3, is characterized in that, between described the first wall and the second wall, by transition face, connects, and described transition face is an inclined plane; The center line of the vertical direction of described transition face is positioned in the residing plane of median plane of described median septum.
6. according to the double-suction type ventilation unit described in 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 is tangent, and the upper surface of the second snail tongue portion is connected with the second wall and is tangent.
7. according to the double-suction type ventilation unit described in claim 4 or 5, it is characterized in that, between described transition face and the first wall, carry out rounding off formula by hollows between transition face and the second wall and be connected.
8. double-suction type ventilation unit according to claim 6, is characterized in that, described the first snail tongue portion is positioned at the second snail tongue portion below, 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 comprises the double-suction type ventilation unit described in any one according to claim 1 to 8 that is arranged in body inner chamber.
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 |
|---|---|---|---|
| CN201320617114.1U CN203550148U (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 |
|---|---|---|---|
| CN201320617114.1U CN203550148U (en) | 2013-10-08 | 2013-10-08 | Double-suction type ventilation device and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550148U true CN203550148U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617114.1U Expired - Lifetime CN203550148U (en) | 2013-10-08 | 2013-10-08 | Double-suction type ventilation device and air conditioner |
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| Country | Link |
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| CN (1) | CN203550148U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515281A (en) * | 2013-10-08 | 2015-04-15 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
| CN105107299A (en) * | 2015-09-29 | 2015-12-02 | 北京卫家环境技术有限公司 | Wall-hanging air purifier |
| CN107328073A (en) * | 2017-06-27 | 2017-11-07 | 奥克斯空调股份有限公司 | A kind of fan blade assembling structure of air conditioner |
-
2013
- 2013-10-08 CN CN201320617114.1U patent/CN203550148U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104515281A (en) * | 2013-10-08 | 2015-04-15 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
| CN105107299A (en) * | 2015-09-29 | 2015-12-02 | 北京卫家环境技术有限公司 | Wall-hanging air purifier |
| CN107328073A (en) * | 2017-06-27 | 2017-11-07 | 奥克斯空调股份有限公司 | A kind of fan blade assembling structure of air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |