CN102954041B - Centrifugal blower and comprise the air conditioner of this kind of centrifugal blower - Google Patents
Centrifugal blower and comprise the air conditioner of this kind of centrifugal blower Download PDFInfo
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- CN102954041B CN102954041B CN201210474349.XA CN201210474349A CN102954041B CN 102954041 B CN102954041 B CN 102954041B CN 201210474349 A CN201210474349 A CN 201210474349A CN 102954041 B CN102954041 B CN 102954041B
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Abstract
Centrifugal blower, comprise spiral case, be installed on the fan in spiral case, described spiral case side has suction port, the exhaust passage around fan is formed in volute, and the air outlet to be communicated with exhaust passage, exhaust passage increases gradually along direction, air outlet cross sectional area radially outward, described fan is used for the air axially sucked from suction port to be diametrically blown into outside, the air be blown is formed air-flow and is discharged by air outlet by exhaust passage, it is characterized in that: in described spiral case, be formed with a circle and the suitable Wind proof wall of impeller outer side face, Wind proof wall is arranged on the gap left between impeller outer and fan and supply fan activity, during fan work, Wind proof wall is for stopping that the airflow reflux be blown is in fan.The airflow reflux that this kind of centrifugal blower can effectively stop to be blown, in fan, can adopt large-sized spiral case and undersized fan to match, and the noise of air-flow by producing during spiral case, as exhaust passage, is eliminated in reserved larger space.
Description
Technical field
The present invention relates generally to a kind of centrifugal blower, and comprises the air conditioner of this kind of centrifugal blower.
Background technique
Centrifugal blower is widely used in the fields such as industrial ventilation, dedusting, chemical industry, HVAC, also in air conditioner, centrifugal blower used in air conditioner mainly comprises spiral case and is arranged on the centrifugal multi-blade fan in spiral case, air passageways is provided with in spiral case, the spinning movement of multi blade fan centrifugal during work, air is through outwards blowing in described air passageways, and air is blown blower by air passageways.Along with market is to the intelligentized development of air conditioner, need in limited space, improve blast, add Wind Volume, reduce noise, now generally being merely able to improve by improving the output power of motor the blast of blower, adding Wind Volume, but adopt the method that the overall dimensions of blower not only can be caused to increase, and its cost, raising noise can be increased.
Summary of the invention
In order to solve the problem, the invention provides a kind of centrifugal blower, comprise spiral case, be installed on the fan in spiral case, described spiral case side has suction port, the exhaust passage around fan is formed in volute, and the air outlet to be communicated with exhaust passage, exhaust passage increases gradually along direction, air outlet cross sectional area radially outward, described fan is used for the air axially sucked from suction port to be diametrically blown into outside, the air be blown is formed air-flow and is discharged by air outlet by exhaust passage, it is characterized in that: in described spiral case, be formed with a circle and the suitable Wind proof wall of impeller outer side face, Wind proof wall is arranged on the gap left between impeller outer and fan and supply fan activity, during fan work, Wind proof wall is for stopping that the airflow reflux be blown is in fan.
Further, be formed in spiral case one with the suitable groove of fan outer circumferential face, fan to be installed in this groove with the sidewall of groove as Wind proof wall, leaves certain free gap between fan and the bottom of groove.
Further, spiral case and groove one-body molded.
Further, the diameter of spiral case is 12-18cm, and the diameter of fan is 7-9cm.
Further, the gap between fan and Wind proof wall is in the scope of 0.5-1.5mm.
Further, the degree of depth of groove is in the scope of 3-5mm.
Further, the free gap between fan and the bottom of groove is in the scope of 0.5-1.5mm.
Further, exhaust passage the widest position is 3-5cm, and the narrowest width is 1-2.5cm.
The present invention also provides a kind of air conditioner, comprises above-mentioned centrifugal blower.
Advantage of the present invention is:
Centrifugal blower provided by the invention is compared with traditional centrifugal blower, fan outer circumferential face is provided with a circle Wind proof wall, effectively can stop that the airflow reflux be blown is in fan, therefore large-sized spiral case and undersized fan can be adopted to match, the noise of air-flow by producing during spiral case, as exhaust passage, is eliminated in reserved larger space.
The blower blast used before improving is 96.3 column, noise is 66 decibel values, and the centrifugal blower blast after improvement is 106.2 column, noise is 59.2 decibel values, blast raising 10%, noise decrease 10%.Improve blast, reduce noise, increase because blast increases air output simultaneously, make centrifugal blower can also play the function of dedusting.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Fig. 1 is the schematic diagram of specific embodiment of the invention centrifugal blower.
Fig. 2 is the sectional view of specific embodiment of the invention centrifugal blower.
Fig. 3 is the schematic diagram of the spiral case of specific embodiment of the invention centrifugal blower.
Embodiment
Technological scheme for a better understanding of the present invention, describes embodiment provided by the invention in detail below in conjunction with accompanying drawing.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, a kind of centrifugal blower, the fan 2 comprising spiral case 1 and be installed in spiral case, the diameter of spiral case is 12-18cm, the diameter of fan is 7-9cm, and preferred spiral case diameter is 15cm, and fan diameter is 8cm.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, spiral case 1 side have in suction port 11, volute 1 be formed around the exhaust passage 12 of fan 2, the air outlet 13 be communicated with exhaust passage 12, with the suitable groove 14 of fan outer circumferential face, exhaust passage 13 increases gradually along direction, air outlet 11 cross sectional area radially outward, exhaust passage the widest position is 3-5cm, the narrowest width is 1-2.5cm, preferred the widest position is 4cm, and the narrowest width is 1.5cm; Groove 14 is formed at and suction port 11 side in spiral case 1, and spiral case 1 is one-body molded with groove 14, the degree of depth of groove in the scope of 3-5mm, preferably 4mm.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, fan 2 to be installed in this groove 14 with the sidewall of groove 14 as Wind proof wall 141, leaves the gap 31 for fan activity between Wind proof wall 141 and fan 2, gap in the scope of 0.5-1.5mm, preferably 0.1mm; Leave certain free gap 32 between the bottom of fan 2 and groove 14, free gap 32 in the scope of 0.5-1.5mm, preferably 0.1mm.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, the working principle of this centrifugal blower is as follows: the air axially sucked from suction port 11 is diametrically blown into outside by fan 2, the air be blown is formed air-flow and is discharged by air outlet 13 by exhaust passage 12, when fan 2 works, Wind proof wall 141 stops that the airflow reflux be blown is in fan 2, therefore large-sized spiral case and undersized fan can be adopted to match, the noise of air-flow by producing during spiral case, as exhaust passage, is eliminated in reserved larger space.
Present invention also offers a kind of air conditioner, comprise above-mentioned centrifugal blower.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process with this, and the equivalence namely done according to the present patent application the scope of the claims and description changes and modifies, and all should still remain within the scope of the patent.
Claims (8)
1. a centrifugal blower, comprise spiral case, be installed on the fan in spiral case, described spiral case side has suction port, the exhaust passage around fan is formed in volute, and the air outlet to be communicated with exhaust passage, exhaust passage increases gradually along direction, air outlet cross sectional area radially outward, described fan is used for the air axially sucked from suction port to be diametrically blown into outside, the air be blown is formed air-flow and is discharged by air outlet by exhaust passage, it is characterized in that: in described spiral case, be formed with a circle and the suitable Wind proof wall of impeller outer side face, Wind proof wall is arranged on the gap left between impeller outer and fan and supply fan activity, during fan work, Wind proof wall is for stopping that the airflow reflux be blown is in fan,
The side that described spiral case has a suction port is formed extends groove suitable with fan outer circumferential face outside exhaust passage, and fan to be installed in this groove with the sidewall of groove as Wind proof wall, leaves certain free gap between fan and the bottom of groove.
2. centrifugal blower according to claim 1, is characterized in that: described spiral case and groove one-body molded.
3. centrifugal blower according to claim 1 and 2, is characterized in that: the diameter of described spiral case is 12-18cm, and the diameter of fan is 7-9cm.
4. centrifugal blower according to claim 3, is characterized in that: the gap between described fan and Wind proof wall is in the scope of 0.5-1.5mm.
5. centrifugal blower according to claim 2, is characterized in that: the degree of depth of described groove is in the scope of 3-5mm.
6. centrifugal blower according to claim 5, is characterized in that: the free gap between described fan and the bottom of groove is in the scope of 0.5-1.5mm.
7. centrifugal blower according to claim 3, is characterized in that: described exhaust passage the widest position is 3-5cm, and the narrowest width is 1-2.5cm.
8. an air conditioner, is characterized in that: comprise the centrifugal blower in claim 1 to 7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210474349.XA CN102954041B (en) | 2012-11-20 | 2012-11-20 | Centrifugal blower and comprise the air conditioner of this kind of centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210474349.XA CN102954041B (en) | 2012-11-20 | 2012-11-20 | Centrifugal blower and comprise the air conditioner of this kind of centrifugal blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954041A CN102954041A (en) | 2013-03-06 |
| CN102954041B true CN102954041B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210474349.XA Active CN102954041B (en) | 2012-11-20 | 2012-11-20 | Centrifugal blower and comprise the air conditioner of this kind of centrifugal blower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105423511B (en) * | 2015-12-21 | 2018-11-06 | 苏州贝昂科技有限公司 | Air-duct apparatus applied to clarifier |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241248A (en) * | 1997-09-30 | 2000-01-12 | 大金工业株式会社 | Centrifugal blower, method of mfg. same, and air-conditioner provided with same |
| CN1367312A (en) * | 2001-01-26 | 2002-09-04 | 株式会社京浜 | Air vent for carburetor |
| KR20040099907A (en) * | 2003-05-20 | 2004-12-02 | 한라공조주식회사 | Inlet ring for vehicle blower unit |
| CN1985092A (en) * | 2004-07-14 | 2007-06-20 | 大金工业株式会社 | Centrifugal blower and air conditionaer with centrifugal blower |
| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| KR20110026064A (en) * | 2009-09-07 | 2011-03-15 | 한라공조주식회사 | Blower of air conditioner for vehicle |
| CN202937509U (en) * | 2012-11-20 | 2013-05-15 | 石狮市通达电机有限公司 | Centrifugal blower and air conditioner comprising same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI263735B (en) * | 2004-07-16 | 2006-10-11 | Delta Electronics Inc | Heat-dissipating device |
-
2012
- 2012-11-20 CN CN201210474349.XA patent/CN102954041B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1241248A (en) * | 1997-09-30 | 2000-01-12 | 大金工业株式会社 | Centrifugal blower, method of mfg. same, and air-conditioner provided with same |
| CN1367312A (en) * | 2001-01-26 | 2002-09-04 | 株式会社京浜 | Air vent for carburetor |
| KR20040099907A (en) * | 2003-05-20 | 2004-12-02 | 한라공조주식회사 | Inlet ring for vehicle blower unit |
| CN1985092A (en) * | 2004-07-14 | 2007-06-20 | 大金工业株式会社 | Centrifugal blower and air conditionaer with centrifugal blower |
| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| KR20110026064A (en) * | 2009-09-07 | 2011-03-15 | 한라공조주식회사 | Blower of air conditioner for vehicle |
| CN202937509U (en) * | 2012-11-20 | 2013-05-15 | 石狮市通达电机有限公司 | Centrifugal blower and air conditioner comprising same |
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| CN102954041A (en) | 2013-03-06 |
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Inventor after: Wang Yayu Inventor after: Guo Conglong Inventor before: Wang Yayu Inventor before: Zhou Peitang |
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Free format text: CORRECT: INVENTOR; FROM: WANG YAYU ZHOU PEITANG TO: WANG YAYU GUO CONGLONG |
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