CN1548838A - Fan hood for air conditioner indoor machine - Google Patents
Fan hood for air conditioner indoor machine Download PDFInfo
- Publication number
- CN1548838A CN1548838A CNA031297781A CN03129778A CN1548838A CN 1548838 A CN1548838 A CN 1548838A CN A031297781 A CNA031297781 A CN A031297781A CN 03129778 A CN03129778 A CN 03129778A CN 1548838 A CN1548838 A CN 1548838A
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- CN
- China
- Prior art keywords
- fan
- air
- fan guard
- orifice plate
- air conditioner
- 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.)
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- Other Air-Conditioning Systems (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The fan hood for indoor unit of air conditioner includes fan hood body to guide the output air, circular sucking port set on the hood body and opened to the rotary center of the fan to suck air from outside, air exhaust port set on the hood body and opened to the tangent direction of the outer circumference of the fan to exhaust air, and perforated plate set around the outer circumference of the sucking port and with streamline surface to guide inflow air. The present invention has the beneficial effects of fluent air flow, no eddy flow produced and greatly reduced noise.
Description
Technical field
The present invention relates to a kind of air conditioner, particularly relate to a kind of fan guard of air conditioner indoor machine.
Background technique
As shown in Figure 1, the structure of existing indoor machine of air-conditioner is: shell 1 constitutes the outward appearance of indoor set, shell 1 be shaped as cuboid, the bottom of its front panel is provided with suction grille 3, top is provided with air discharge grille 5; Be provided with the control panel 7 of the operation of control air conditioner below the described air discharge grille 5; The effect of described suction grille 3 is to suck indoor air to carry out heat exchange, and the effect of air discharge grille 5 is to be discharged into the interior space with carry out heat-exchanged air in indoor set.
In order to suck air by suction grille 3 to indoor set inside, the rear of described suction grille 3 is provided with fan 9, is provided with heat exchanger 11 above the fan 9.
In order to make fan 9 air stream can be delivered to heat exchanger 11 exactly, the outer installment of fan 9 has fan guard 13.Below with reference to Fig. 2 and Fig. 3 the structure of fan guard 13 is illustrated:
The main body of described fan guard 13 is oblate cylindrical structure, and an one rounded bottom surface is provided with intakeport 14, and its cylindrical sides is provided with the relief opening 15 that is shaped as rectangle.Described intakeport 14 is installed towards the back of suction grille 3, and described relief opening 15 is installed towards the bottom of heat exchanger 11.
As shown in Figure 4, the excircle of described intakeport 14 is provided with orifice plate 16, and the surface of orifice plate 16 is circular arc, and its effect is that steering flow enters fan 9 by intakeport 14.
In above-mentioned existing indoor machine of air-conditioner, fan 9 starts the back indoor air and enters shell 1 by suction grille 3, enter fan guard 13 by intakeport 14 then, direction and fan 9 that air stream enters fan 9 select shaft parallel, the air stream that is inhaled into fan 9 is from relief opening 15 row's heat exchanger 11, carry out becoming Cryogenic air after the heat exchange with the refrigerant in the heat exchanger, Cryogenic air is discharged into the interior space by output grid 5.
But there is following shortcoming in the fan guard 13 of above-mentioned existing indoor machine of air-conditioner:
As shown in Figure 3, under the effect of the suction of fan 9, the portion of air that enters fan guard 13 intakepories 14 by suction grille 3 can form eddy current in the ingress of orifice plate 16.This is because directly connected circular arc orifice plate 16 on the flat bottom of fan guard 13, in other words, will produce eddy current when the plane airflow flowing runs into the curved surface of protrusion suddenly, and this eddy current can produce bigger noise.
Summary of the invention
Technical problem to be solved by this invention is, overcomes the shortcoming of the fan guard 13 of above-mentioned existing indoor machine of air-conditioner, provides a kind of noise little and can make the fan guard of the more unobstructed air conditioner indoor machine of the air flows of suction fan cover.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: the fan guard of air conditioner indoor machine of the present invention comprises: inside is provided with fan and has the fan guard body in the space that is used for guiding delivery air, the circular suction port that is used for sucking outside air that is arranged on the fan guard body and opens to the rotating center of fan, the relief opening of the outside discharged air that is arranged on the fan guard body and opens to the tangent direction of fan excircle and along the excircle setting of intakeport be used for guide air stream to enter the orifice plate of intakeport, the outer surface of described orifice plate is streamline.
On the outer surface of described orifice plate from the leading flank of fan guard to being the plane of inclination the summit of orifice plate, from the summit to the intakeport between for having the curved surface of certain curvature radius, described summit is meant the point that protrudes most on the outer surface of orifice plate.
The invention has the beneficial effects as follows: because the orifice plate outer surface of fan guard is streamline, make that the air flows of passing through orifice plate is more unobstructed, can not produce eddy current, reduced noise greatly.
Description of drawings
Fig. 1 is the main structure schematic representation of existing air conditioner indoor machine;
Fig. 2 is the structural representation of the fan guard of existing air conditioner indoor machine;
Fig. 3 is the interior air-flow direction schematic representation of the fan guard of existing air conditioner indoor machine;
Fig. 4 is the perspective view of the fan guard embodiment of air conditioner indoor machine of the present invention;
Fig. 5 is the sectional structure and the air-flow direction schematic representation of the fan guard embodiment of air conditioner indoor machine of the present invention.
Among the figure:
30: fan guard 32: the fan guard body
33: leading flank 34: outer cylinder
36: intakeport 38: relief opening
40: orifice plate 41: plane of inclination
42: curved surface 43: summit
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail:
Fan is arranged on the inside of fan guard 30, fan guard 30 be arranged on heat exchanger in the air conditioner indoor machine shell below.
As shown in Figure 4 and Figure 5, described fan guard 30 comprises: oblate tubular fan guard body 32, intakeport 36, relief opening 38 and orifice plate 40.
The inside of described fan guard body 32 is provided with fan, forms the space of steering flow simultaneously.Described fan guard body 32 is called as leading flank 33 towards the round sides of indoor set suction grille, is called as outer cylinder 34 along vertical fan guard body 32 sides that form of the excircle of leading flank 33.
Described leading flank 33 is provided with circular intakeport 36, and the center of leading flank 33 is departed from the center of described intakeport 36 slightly.Indoor air enters fan guard 32 by intakeport 36 under the effect of the suction of fan.
Be formed with relief opening 38 on the described outer cylinder 34, relief opening 38 protrudes from outer cylinder 34 along the tangent direction of fan excircle, the bottom of described relief opening 38 heat exchanger in the air conditioner indoor machine shell.
The excircle place of described intakeport 36 is provided with ring orifice plate 40, the outer surface of orifice plate 40 is streamline, specifically, the outer surface of orifice plate 40 comprises from the leading flank 33 of fan guard to the plane of inclination 41 on the summit 43 of orifice plate 40 and 43 curved surfaces with certain curvature radius 42 to intakeport 36 from the summit.Described summit 43 is meant the point that protrudes most on the outer surface of orifice plate 40.
Working procedure to the fan guard of air conditioner indoor machine of the present invention is illustrated below:
After described fan guard 30 installed, the suction grille relief opening 38 that intakeport 36 makes towards the indoor set shell was towards the bottom of heat exchanger.Fan guard 30 inside are provided with fan.
After air conditioner started, fan began to rotate under the driving of fan electromotor, and indoor air is inhaled into the air conditioner indoor machine shell by suction grille.The air that is inhaled into by suction grille flows to the leading flank 33 of fan cover body 32, and the guiding by orifice plate 40 enters fan guard body 32 from intakeport 32.
In this process, the air by orifice plate 40 at first 41 flows along the plane of inclination, arrives 43 backs, summit and flows into intakepories 32 along curved surface 42.
Because the outer surface of orifice plate 40 is streamline, therefore make Laminar Flow by the air-flow of orifice plate 40, particularly can not produce the phenomenon of eddy current at the position that orifice plate 40 is connected with leading flank 33, therefore reduced noise greatly.
The air-flow that flows into intakeport 32 is drawn in the fan of fan guard body 32 inside, by exporting along fan center of circle direction behind the fan, flow to relief opening 38 along the internal surface of fan cover body 32 from the air of center of circle direction output, from the air stream of relief opening 38 output when the heat exchanger and the refrigerant the heat exchanger carry out heat exchange, become cryogenic gas and be discharged into indoor.
Obviously, according to basic fundamental design of the present invention, those of ordinary skill in the art need not can associate some other embodiment by creative work, and these all should belong to protection scope of the present invention.
Claims (2)
1. the fan guard of an air conditioner indoor machine, comprise: inside is provided with fan and has the fan guard body in the space that is used for guiding delivery air, is arranged on the fan guard body and sucks the circular suction port of outside air and the relief opening of the outside discharged air that is arranged on the fan guard body and opens to the tangent direction of fan excircle to being used for of opening of the rotating center of fan, it is characterized in that: also comprise along the excircle setting of intakeport be used for guide air stream to enter the orifice plate (40) of intakeport, the outer surface of orifice plate (40) is streamline.
2. the fan guard of air conditioner indoor machine according to claim 1, it is characterized in that: on the outer surface of described orifice plate (40) from the leading flank (33) of fan guard to being plane of inclination (41) the summit (43) of orifice plate (40), from summit (43) to the intakeport (36) for having the curved surface (42) of certain curvature radius, described summit (43) are meant the point that protrudes most on the outer surface of orifice plate (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031297781A CN100343595C (en) | 2003-05-20 | 2003-05-20 | Fan hood for air conditioner indoor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031297781A CN100343595C (en) | 2003-05-20 | 2003-05-20 | Fan hood for air conditioner indoor machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548838A true CN1548838A (en) | 2004-11-24 |
| CN100343595C CN100343595C (en) | 2007-10-17 |
Family
ID=34322437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031297781A Expired - Fee Related CN100343595C (en) | 2003-05-20 | 2003-05-20 | Fan hood for air conditioner indoor machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100343595C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100510424C (en) * | 2006-10-19 | 2009-07-08 | 三菱重工业株式会社 | Centrifugal fan |
| CN101338770B (en) * | 2007-07-04 | 2010-08-04 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101684964B (en) * | 2008-09-26 | 2013-01-23 | 乐金电子(天津)电器有限公司 | Orifice plate at front face of fan cover of air supply motor of cabinet type air-conditioning indoor machine |
| CN111219363A (en) * | 2018-11-26 | 2020-06-02 | 建准电机工业股份有限公司 | Fan shell and fan wheel combined structure and fan shell thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2260280Y (en) * | 1996-01-10 | 1997-08-20 | 王冬来 | Air ventilating hood for gas combustion water heater |
| JP3052942B2 (en) * | 1998-09-30 | 2000-06-19 | ダイキン工業株式会社 | Air conditioning unit |
| CN1282853C (en) * | 2001-03-23 | 2006-11-01 | 三菱重工业株式会社 | Indoor unit and air conditioner |
| JP2002295863A (en) * | 2001-03-28 | 2002-10-09 | Mitsubishi Heavy Ind Ltd | Air conditioner and indoor unit |
-
2003
- 2003-05-20 CN CNB031297781A patent/CN100343595C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100510424C (en) * | 2006-10-19 | 2009-07-08 | 三菱重工业株式会社 | Centrifugal fan |
| CN101338770B (en) * | 2007-07-04 | 2010-08-04 | 富准精密工业(深圳)有限公司 | Centrifugal fan |
| CN101684964B (en) * | 2008-09-26 | 2013-01-23 | 乐金电子(天津)电器有限公司 | Orifice plate at front face of fan cover of air supply motor of cabinet type air-conditioning indoor machine |
| CN111219363A (en) * | 2018-11-26 | 2020-06-02 | 建准电机工业股份有限公司 | Fan shell and fan wheel combined structure and fan shell thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100343595C (en) | 2007-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071017 |