CN2667372Y - Indoor machine blower system for floor air conditioner - Google Patents
Indoor machine blower system for floor air conditioner Download PDFInfo
- Publication number
- CN2667372Y CN2667372Y CNU2003201146525U CN200320114652U CN2667372Y CN 2667372 Y CN2667372 Y CN 2667372Y CN U2003201146525 U CNU2003201146525 U CN U2003201146525U CN 200320114652 U CN200320114652 U CN 200320114652U CN 2667372 Y CN2667372 Y CN 2667372Y
- Authority
- CN
- China
- Prior art keywords
- air
- grid
- spiral case
- supply air
- air system
- 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
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- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an indoor machine blower system for floor air conditioner capable of lowering air conditioner noise, comprising an air intaking grid, an air guiding ring, a spiral case, a centrifugal fan, a motor, a damping rubber, a bolt, a back frame, an evaporator and an air outlet grid. The spiral case inner wall profile line comprises an arc and an archimedes spiral cord, the air intaking grids are arranged at both sides of the air conditioner, the grid is designed into a vertical stripe shape and the grid surface is in parallel with the back frame.
Description
Technical field
The utility model relates to a kind of air-conditioner supply air system, particularly a kind of indoor unit of floor type air conditioner supply air system.
Background technology
Not only volume is big but also noise is higher for the supply air system of existing floor type air-conditioner (claiming cabinet-type air conditioner again) indoor set, and the fuselage width of general 3HP cabinet-type air conditioner is more than 520mm, and noise is about 50dB (A).And the general version that adopts equilateral based method or adopt spiral of Archimedes of the spiral case inwall molded lines of existing cabinet-type air conditioner, this version is difficult to realize big air quantity, low noise requirement under the little situation of cabinet-type air conditioner fuselage width.
The utility model content
In order to overcome the existing deficiency that air-conditioner supply air system volume is big, noise is big, the utility model provides that a kind of fuselage width is little, air-admitting surface is narrow and noise is low, air quantity is big indoor unit of floor type air conditioner supply air system.
The technical scheme that its technical problem that solves the utility model adopts is: supply air system is made of air intake grid, air-ducting ring, spiral case, centrifugal fan, motor, yielding rubber, bolt, after-frame, evaporimeter, outlet grid etc.Spiral case outer wall molded lines adopts spiral of Archimedes to design in conjunction with circular arc, and spiral case diffusion part and center line shape to realize that blast reduces gently, are designed to arc with air-ducting ring at an angle, reduce the air inlet airflow noise.The gap of radial clearance, fan and the snail tongue of end play, fan and air-ducting ring by reasonable disposition air-ducting ring and fan makes air quantity and noise be in optimum state.Between after-frame and motor, evenly arrange three yielding rubbers and use bolting, to reduce the low-frequency noise that the motor vibrations produce.Because air-admitting surface is narrow, therefore air-inlet grille is designed to streamlinedly, make its flow direction of complying with wind as far as possible, thereby reduce the noise of air inlet.
The beneficial effects of the utility model are: reduced noise effectively under the less situation of floor type air-conditioner body volume.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a planar structure schematic diagram of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the air-ducting ring profile;
Fig. 4 is centrifugal fan blade section shape figure.
The specific embodiment
Present embodiment is that refrigerating capacity is that 7100W, indoor set fuselage size are the floor type air-conditioner of 1750 * 500 * 295mm, and noise is 46dB (A), and draft capacity is 1100m under the standard cooling condition
3/ H.
Supply air system mainly is made up of air intake grid 1, air-ducting ring 2, spiral case 3, centrifugal fan 4, motor 5, yielding rubber 6, bolt 7, after-frame 8, evaporimeter 9, outlet grid 10.
Air-ducting ring 2 is designed to the semicircular ring shape, and circle diameter is
1=276mm, arc radius R
3=26mm.
The inwall molded lines start-up portion of spiral case 3 is one section radius R
2The circular arc of=96mm is that equation is R then
a=182+ (62 * A/180) spiral of Archimedes, radius R
2The circular arc of=96mm is tangent with it.The extended line of spiral case diffusion part inwall molded lines forms θ with vertical center line
1=22 ° angle, with the intersection point of horizontal center line apart from the L of fan center
1=8mm.Spiral case diffusion part inwall molded lines and radius R
2The circular arc of=96mm carries out rounding to be handled, and radius of corner is R
1=15mm.
The external diameter of centrifugal fan 4 is 325mm, highly is 140mm, its blade section shape major parameter R
4=15.385mm, R
5=6.17mm, R
6=6.65mm, θ
2=33.5 °, θ
3=22.855 °, blade quantity is 47 and evenly distributes on circumference.
Between motor 5 and after-frame 8, evenly arrange three yielding rubbers 6, and by yielding rubber 6 motor 5 is fixed on the after-frame 8, with the vibrations of buffer motor 5 generations with bolt 7.
By the said structure form, form the axial minimum clearance δ of air-ducting ring 2 and fan 5
1=11.5mm, the radially minimum clearance δ of air-ducting ring 2 and fan 5
2=7mm, the minimum clearance δ of fan blade and snail tongue
3=20mm.
Claims (6)
1. indoor unit of floor type air conditioner supply air system, it is made up of air intake grid (1), air-ducting ring (2), spiral case (3), centrifugal fan (4), motor (5), yielding rubber (6), bolt (7), after-frame (8), evaporimeter (9) and outlet grid (10), it is characterized in that: the inwall molded lines of spiral case (3) is made of circular arc and spiral of Archimedes.
2. supply air system according to claim 1 is characterized in that: the inwall molded lines of spiral case (3) is one section radius R
2The circular arc of=96mm is that equation is R then
a=182+ (62 * A/180) spiral of Archimedes, radius R
2The circular arc of=96mm is tangent with it, and spiral case diffusion part inwall and symmetrical center line form θ
1=22 ° angle, and and radius R
2The circular arc of=96mm carries out rounding to be handled, and radius of corner is R
1=15mm.
3. supply air system according to claim 1 is characterized in that: air intake grid (1) is arranged in the air-conditioning both sides, and grid becomes the vertical bar shape, and grille plane is parallel to after-frame (7).
4. supply air system according to claim 1 and 2 is characterized in that: the end play δ of air-ducting ring (2) and fan (4)
1=11.5mm, the radial clearance δ of air-ducting ring (2) and fan (4)
2=7mm, the gap delta of fan blade and snail tongue
3=20mm.
5. supply air system according to claim 1 is characterized in that: the external diameter of centrifugal fan (4) is 325mm, highly is 140mm, its blade section shape major parameter R
4=15.385mm, R
5=6.17mm, R
6=6.65mm, θ
2=33.5 °, θ
3=22.855 °, blade quantity is 47 and evenly distributes on circumference.
6. supply air system according to claim 1 is characterized in that: evenly arrange three yielding rubbers (6) between motor (5) and the after-frame (8), and motor (5) is fixed on the after-frame (8) by yielding rubber (6) with bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201146525U CN2667372Y (en) | 2003-11-14 | 2003-11-14 | Indoor machine blower system for floor air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201146525U CN2667372Y (en) | 2003-11-14 | 2003-11-14 | Indoor machine blower system for floor air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667372Y true CN2667372Y (en) | 2004-12-29 |
Family
ID=34345488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201146525U Expired - Fee Related CN2667372Y (en) | 2003-11-14 | 2003-11-14 | Indoor machine blower system for floor air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667372Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421001A (en) * | 2017-05-02 | 2017-12-01 | 珠海格力电器股份有限公司 | Seat hanging air-conditioning |
-
2003
- 2003-11-14 CN CNU2003201146525U patent/CN2667372Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421001A (en) * | 2017-05-02 | 2017-12-01 | 珠海格力电器股份有限公司 | Seat hanging air-conditioning |
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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: SICHUAN CHANGHONG ELECTRIC CO.,LTD. Free format text: FORMER OWNER: SICHUAN CHANGHONG ELECTRIC APPLIANCE CO., LTD. Effective date: 20090703 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090703 Address after: No. 35, Mian Xing Road, Gaoxin District, Sichuan, Mianyang Province: 621000 Patentee after: Sichuan Changhong Air-Coditioning Co., Ltd. Address before: No. 35, Mian Xing East Road, hi tech Zone, Sichuan, Mianyang Province: 621000 Patentee before: Sichuan Changhong Electrical Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041229 Termination date: 20101114 |