CN201535270U - Air-conditioning parallel-connection blower fan system - Google Patents
Air-conditioning parallel-connection blower fan system Download PDFInfo
- Publication number
- CN201535270U CN201535270U CN200920238794XU CN200920238794U CN201535270U CN 201535270 U CN201535270 U CN 201535270U CN 200920238794X U CN200920238794X U CN 200920238794XU CN 200920238794 U CN200920238794 U CN 200920238794U CN 201535270 U CN201535270 U CN 201535270U
- Authority
- CN
- China
- Prior art keywords
- axial
- axial flow
- blades
- air
- flow windwheel
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an air-conditioning parallel-connection blower fan system, comprising a first axial flow fan and a second axial flow fan, characterized in that: the numbers of the blades of the two axial flow fans are different or the shapes of the blades of the two axial flow fans are different; or the motor powers, rotation speeds of the two axial flow fans are different. The numbers of the blades of first axial flow fan and the second axial flow fan are respectively two slices and three slices; or three slices and four slices. The front ends of the two axial flow fans are provided with wind guide rings. The numbers of the blades of the two axial flow fans are different and the rotation speeds are different, therefore the rotation frequencies of the two axial flow fans are obviously staggered and the frequencies of the resonances formed by mutually laminating two rotation noises are greatly increased to make the time distance between the two resonances close to the into-ear minimum time resolution. In addition, the numbers of the blades are different, the shapes are different and the natural frequencies are staggered, thereby preventing the resonance during running process to decrease the vibration.
Description
Technical field
The utility model relates to a kind of blower fan system that can be applicable to the apparatus of air conditioning and ventilation equipment, belongs to the renovation technique of parallel fan system.
Background technique
At present, be applied to the parallel fan system of the apparatus of air conditioning and ventilation equipment,, adopt the same number of structure of two wind wheel blades mostly, as shown in Figure 1 as the parallel fan system of air conditioner outdoor machine.Owing to reasons such as voltage functuation, motor characteristic differences, the rotating speed of two blower fans and phase place can not be in full accord, and the speed that will cause two wind wheels like this is deviation slightly.The rotational noise mutual superposition of different frequency will form to clap and shake, and promptly blower fan system will produce obvious periodic low frequency pulsating noise in running, has had a strong impact on the tonequality and the comfort of air-conditioning.In addition,,, in running, also might cause resonance, not only further strengthen noise, but also can have influence on the operational safety of blower fan system if the blower fan dynamic balancing is relatively poor or person's vibration reducing measure is unreasonable because two wind wheel natural frequencys are close.
The model utility content
The purpose of this utility model aims to provide a kind of periodicity low frequency pulsating noise that can effectively reduce when moving, and optimizes the air-conditioning parallel fan system of tonequality, vibration and noise reducing, to overcome deficiency of the prior art.
A kind of air-conditioning parallel fan system by the design of this purpose comprises first axial-flow windwheel and second axial-flow windwheel, and its structure characteristic is that the lobe numbers of two axial flow wind wheel is inequality; Perhaps the blade shape of two axial flow wind wheel is inequality; Perhaps the power of motor of two axial flow wind wheel, rotating speed size are inequality.
The lobe numbers of described first axial-flow windwheel and second axial-flow windwheel is respectively 2 and 3; Perhaps 3 and 4; Promptly first axial-flow windwheel has 2 blades, and second axial-flow windwheel has 3 blades; Perhaps first axial-flow windwheel has 3 blades, and second axial-flow windwheel has 4 blades.
The front end of described first axial-flow windwheel and second axial-flow windwheel is provided with air-ducting ring.
The utility model two axial flow wind wheel is owing to adopt the different structure of lobe numbers, because of the lobe numbers difference, the rotating speed difference, so speed of the two axial flow wind wheel that can obviously stagger, improve two rotational noise mutual superposition greatly and form and clap the frequency shake, made for two time lags between clapping near the minimum time resolution of people's ear.When the utility model is used for air conditioner outdoor machine, can improve the operation tonequality of air conditioner outdoor machine parallel axial fan system greatly.In addition, the lobe numbers difference of two axial flow wind wheel, the shape difference, the two the natural frequency of can staggering, complete machine oscillation obviously reduces, and noise figure has reduced about 3dB.Thereby avoid resonating in the running, reach to fall and shake and purpose that tonequality is optimized.Ingenious, the function admirable, convenient and practical of its design, and be suitable for mass production in batches.
Description of drawings
Fig. 1 is the prior art constructions schematic representation.
Fig. 2 is the utility model one example structure schematic representation.
Fig. 3 is the structural representation of looking up of Fig. 2.
Fig. 4 is another example structure schematic representation of the utility model.
Fig. 5 is applied to the structural representation of top air-out air conditioner outdoor machine for the utility model.
Fig. 6 is the plan structure schematic representation of Fig. 5.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Referring to Fig. 2, Fig. 3, Fig. 5 and Fig. 6, the parallel fan system that is used for the top air-out air conditioner outdoor machine for the utility model, wherein first axial-flow windwheel 1 is three blade axial-flow wind wheels, second axial-flow windwheel 3 is the quaterfoil axial-flow windwheel, it is separately fixed on separately the asynchronous motor 6, and with air-ducting ring 2, air outlet grate top cover 19, and by last condenser 11, down the return airway that constituted such as condenser 13, front panel 22, dunnage 16, left side cover plate 5, right side cover plate 10, rear side cover plate 9, front side cover plate 21 has been formed a complete parallel axial fan system jointly.Other mainly plays a part to support and be connected whole air conditioner frame such as electric machine support 7, electric machine support dunnage parts 8, electric machine support supporting component 15, dunnage 16, barge board assembly 17.Last condenser 11, following condenser 13 are connected with supplying tube assembly 12, output tube assembly 14 respectively, and in addition, the top air-out air conditioner outdoor machine also is provided with housing 4, fan housing 18 and 20.
Fig. 4 is another embodiment of the present utility model, and first axial-flow windwheel 1 is three blade axial-flow wind wheels, and second axial-flow windwheel 3 is two blade axial-flow wind wheels.All the other do not state the same embodiment of part.
In system's running, ambient air process condenser 11,13 up and down enters, and after heat exchange, is discharged by the major diameter parallel axial fan that runs up.
Claims (4)
1. an air-conditioning parallel fan system comprises first axial-flow windwheel (1) and second axial-flow windwheel (3), it is characterized in that the lobe numbers of two axial flow wind wheel is inequality; Perhaps the blade shape of two axial flow wind wheel is inequality; Perhaps the power of motor of two axial flow wind wheel, rotating speed size are inequality.
2. air-conditioning parallel fan according to claim 1 system is characterized in that the lobe numbers of described first axial-flow windwheel (1) and second axial-flow windwheel (3) is respectively 2 and 3; Perhaps 3 and 4; Promptly first axial-flow windwheel has 2 blades, and second axial-flow windwheel has 3 blades; Perhaps first axial-flow windwheel has 3 blades, and second axial-flow windwheel has 4 blades.
3. according to claim 1 or 2 described air-conditioning parallel fan systems, it is characterized in that the front end of described first axial-flow windwheel (1) and second axial-flow windwheel (3) is provided with air-ducting ring (2).
4. air-conditioning parallel fan according to claim 3 system, it is characterized in that described first axial-flow windwheel (1) and second axial-flow windwheel (3) are arranged in the air conditioner outdoor machine, and constitute return airway by last condenser (11), following condenser (13), front panel, dunnage (16), left side cover plate (5), right side cover plate (10), rear side cover plate (9), front side cover plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920238794XU CN201535270U (en) | 2009-11-05 | 2009-11-05 | Air-conditioning parallel-connection blower fan system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920238794XU CN201535270U (en) | 2009-11-05 | 2009-11-05 | Air-conditioning parallel-connection blower fan system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201535270U true CN201535270U (en) | 2010-07-28 |
Family
ID=42535049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920238794XU Expired - Fee Related CN201535270U (en) | 2009-11-05 | 2009-11-05 | Air-conditioning parallel-connection blower fan system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201535270U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241305A (en) * | 2013-05-16 | 2013-08-14 | 青岛智通车辆研发有限公司 | Balancing mechanism of double-body vehicle |
| CN105180290A (en) * | 2015-10-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Parallel-connected draught fan combined cabinet |
| CN116241492A (en) * | 2023-01-09 | 2023-06-09 | 东莞市敏欣实业有限公司 | Four palace check rotary drum formula silence negative pressure fans |
-
2009
- 2009-11-05 CN CN200920238794XU patent/CN201535270U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241305A (en) * | 2013-05-16 | 2013-08-14 | 青岛智通车辆研发有限公司 | Balancing mechanism of double-body vehicle |
| CN105180290A (en) * | 2015-10-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Parallel-connected draught fan combined cabinet |
| CN116241492A (en) * | 2023-01-09 | 2023-06-09 | 东莞市敏欣实业有限公司 | Four palace check rotary drum formula silence negative pressure fans |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204494611U (en) | A kind of cold exchange system of air-conditioning indoor machine | |
| CN202560599U (en) | Series fan system | |
| CN207989350U (en) | A kind of wind turbine that can adjust intake | |
| CN102721120A (en) | Method for controlling frequency inverter air conditioner outdoor fan and compressor vibration noise | |
| CN201535270U (en) | Air-conditioning parallel-connection blower fan system | |
| CN101403390A (en) | Parallel axial fan system | |
| CN103115021A (en) | Vane wheel device | |
| CN108266809A (en) | Cabinet air-conditioner and air conditioner | |
| CN201314300Y (en) | Parallel axial-flow fan system | |
| CN201358933Y (en) | Evaporation fan | |
| CN206874515U (en) | A kind of motor-car aids in transformer cabinet cooling fan | |
| CN206694290U (en) | A kind of blower fan with air purification effect | |
| CN202690524U (en) | Cross flow wind wheel and air-conditioner including cross flow wind wheel | |
| CN101776095A (en) | Method for improving noise of double wind wheel resonance | |
| CN103673256A (en) | Full direct current variable-frequency air conditioner outdoor machine and air conditioner | |
| CN201322006Y (en) | Axial-flow fan for electric locomotive inverter | |
| CN207945738U (en) | Cabinet air-conditioner and air conditioner | |
| CN209983000U (en) | Device for heat dissipation and ventilation of outdoor cabinet of wireless communication base station | |
| CN103016369A (en) | Novel axial-flow fan with small-aspect-ratio blades having obliquely-cut and twisted blade roots | |
| CN206957952U (en) | A kind of outer rotor Double Speed Fan | |
| CN201554666U (en) | Two-stage axial-flow fan | |
| CN206770236U (en) | A kind of domestic fan with mute function | |
| CN201513360U (en) | Cooling fan of locomotive filter reactor | |
| CN202833291U (en) | Air cooling refrigerator, compact centrifugal fan and air supply system for air cooling refrigerator | |
| CN200993123Y (en) | Radiating fan |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: MIDEA GROUP CO., LTD. Free format text: FORMER OWNER: MEIDI ELECTRIC APPLIANCES CO., LTD., GUANGDONG Effective date: 20140109 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 FOSHAN, GUANGDONG PROVINCE TO: 528311 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140109 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100728 Termination date: 20151105 |
|
| EXPY | Termination of patent right or utility model |