CN101718277B - Evaporation fan used for vehicle air conditioning system - Google Patents
Evaporation fan used for vehicle air conditioning system Download PDFInfo
- Publication number
- CN101718277B CN101718277B CN2009100471494A CN200910047149A CN101718277B CN 101718277 B CN101718277 B CN 101718277B CN 2009100471494 A CN2009100471494 A CN 2009100471494A CN 200910047149 A CN200910047149 A CN 200910047149A CN 101718277 B CN101718277 B CN 101718277B
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- Prior art keywords
- impeller
- fan
- blower fan
- fixed
- volute
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Abstract
The invention relates to an evaporation fan used for a vehicle air conditioning system, which comprises a volute base, impellers, a motor assembly and a volute upper cover. In the evaporation fan, a centrifugal type biaxial fan is adopted; the biaxial fan is fixed in a screw rod propelling mode; the biaxial fan is fixed inside an installation chamber of an air conditioning (HVAC) assembly with wedge nuts and opening pins by a screw rod; the volute base is an assembly base framework of a fan structure; the motor assembly is fixed in a hemicycle recess in the middle of the volute base; a first impeller and a second impeller are fixed on two extending axle ends of the motor through an interference assembly; a wave filter is fixed on the two sides of the recess of the volute base through self-tapping screws and encases the other edges of a motor excircle; and the volute upper cover is fixedly arranged on the upper ends of the impellers through the self-tapping screws and forms an air duct of the fan with the volute base. The fan has the advantages of low noise, convenient installation and maintenance, reduced total installation time and labor intensity, and improved fan efficiency.
Description
[technical field]
The present invention relates to the auto parts machinery technical field, concrete automotive air-conditioning system, the especially a kind of evaporation fan that is used for automotive air-conditioning system of relating to.
[background technique]
What at present, the used for automobile air conditioning evaporation fan adopted is centrifugal single shaft blower fan and twin shaft blower fan.When adopt be centrifugal single shaft blower fan the time, fan blade adopts is the even vertical distribution identical blade of (spacing of two adjacent blades equates, and blade is with spool parallel); There is certain intrinsic frequency in the impeller of this blower fan, and each impeller back can form eddy current during the blower fan running, and produces certain noise; This is because each blade pitgh is even, and the blade back just can produce the eddy current of identical size easily, and the noise of generation will mutual superposition, produces resonance phenomenon, makes noise become very big; And the running of blower fan is when reaching certain rotating speed, and it is more obvious that this phenomenon can become, and howling also can be increasing, and main performance is that bass is big.When adopt be the twin shaft blower fan time, it adopts the directly fixing mode of screw in automotive air-conditioning system, the direct mode of fixing of the screw that is adopted, its working strength is big, inconvenient I﹠M.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, a kind of evaporation fan that is used for automotive air-conditioning system is provided, to improve the noise that fan delivery also reduces blower fan simultaneously.
The present invention is achieved through the following technical solutions:
A kind of evaporation fan that is used for automotive air-conditioning system, comprise spiral case base, impeller, motor and spiral case loam cake, it is characterized in that, adopt centrifugal twin shaft blower fan, the means of fixation of twin shaft blower fan is the screw rod push type, by wedge nut and opening pin, screw rod is fixed to the twin shaft blower fan in the installation room of air-conditioning (HVAC) assembly; The spiral case base is the assembling base frame of blower fan structure, and motor is fixed in the middle semi-circular recess of spiral case base; First impeller, second impeller stretch out axle head by the interference mount in motor two; Wave filter is fixed in spiral case base spill seat both sides by tapping screw, and encases motor cylindrical one side of something in addition; The spiral case loam cake is fixedly installed in the impeller upper end by tapping screw, with the air channel of spiral case base formation twin shaft blower fan;
Be equipped with wind wheel dynamic balancing piece on two impellers (first impeller and second impeller), be 160mg wind wheel dynamic balancing piece and 80mg wind wheel dynamic balancing piece, regulate the unbalancing value of both sides impeller by wind wheel dynamic balancing piece;
In single impeller (first impeller and second impeller), each interlobate spacing is unequal, and makes its blade pin stretch out axle head towards being rotated counterclockwise 5.3 degree; In order promptly to guarantee air quantity, the easy demoulding when making things convenient for injection moulding again, the impeller blade inclination among the present invention are the inclination (angle that the cross section of blade rotates through when axial height changes) on the circumferencial direction; The impeller difference at twin shaft blower fan two ends, first impeller and second impeller are mirror; Interference fit is adopted in impeller among the present invention and the assembling of motor shaft, makes the impeller can be better in the process of assembling and motor coaxle, reduces the unbalancing value of twin shaft blower fan.
Compared with prior art, good effect of the present invention is:
(1) the present invention is under identical air quantity, and the noise of blower fan is low, can improve the versatility of the air-conditioning system of left and right rudder vehicle simultaneously;
(2) twin shaft fan pressure of the present invention is big, is easier to the heat exchange of vaporizer;
(3) installation and maintenance of the present invention are convenient, reduce final assembly lead time and labor intensity;
(4) innovative design of structure of the present invention has improved the comfort property of passenger car air-conditioning greatly; And such blower fan of promotion China is in the development of car air-conditioning system;
(5) the present invention reduces the angle of the spiral line of volute of blower by increasing the chord length and the quantity of blade, strengthens the blast of twin shaft blower fan, thereby improves the efficient of blower fan.
[description of drawings]
Accompanying drawing 1 is axonometric drawing of the present invention;
Accompanying drawing 2 is assemblied in partial view in the air-conditioning system assembly for the present invention;
Accompanying drawing 3 is a wedge nut structure partial enlarged drawing of the present invention;
Accompanying drawing 4 is a sectional view of the present invention.
Label in the accompanying drawing is respectively: 1, spiral case base, 2, first impeller, 3,160mg wind wheel dynamic balancing piece, 4,80mg wind wheel dynamic balancing piece, 5, motor, 6, wave filter, 7, tapping screw, 8, second impeller, 9, screw rod, 10, the spiral case loam cake, 11, the opening pin, 12, wedge nut, 13, the HVAC housing.
[embodiment]
Below in conjunction with accompanying drawing a kind of evaporation fan that is used for automotive air-conditioning system of the present invention is described further.
A kind of evaporation fan that is used for automotive air-conditioning system, comprise spiral case base 1, impeller (first impeller 2 and second impeller 8), motor 5 and spiral case loam cake 10, adopt centrifugal twin shaft blower fan, the means of fixation of this twin shaft blower fan is the screw rod push type, by wedge nut 12 and opening pin 11, screw rod 9 is fixed to the twin shaft blower fan in the installation room of air-conditioning (HVAC) assembly, and wherein, screw rod 9 passes base end face aperture, threaded end screws in wedge nut 12 tapped holes; Opening pin 11 passes in spiral case base 1 associated orifices, and screw rod 9 and wedge nut 12 are constrained in the limited range, and wedge nut 12 unlikely slippage in the gradient guide rail; When screw rod turns clockwise, it is darker that screw rod 9 will screw in wedge nut 12, wedge nut 12 is spurred towards the screw head direction, slide along slant rail, make twin shaft blower fan assembly in installation room, tensioning on the motor diameter direction is fixed on the twin shaft blower fan in the installation room of air-conditioning (HVAC) assembly jointly with all the other two pieces of tapping screws, and vaporizer is arranged in air-conditioning (HVAC) housing 13; Spiral case base 1 is the assembling base frame of blower fan structure, and motor 5 is fixed in the semi-circular recess of spiral case base 1 centre; First impeller 2, second impeller 8 stretch out axle head by the interference mount for 5 liang in motor; Wave filter 6 is fixed in spiral case base 1 spill seat both sides by tapping screw 7, and encases motor cylindrical one side of something in addition; Spiral case loam cake 10 is fixedly installed in the impeller upper end by tapping screw 7, with the air channel of spiral case base 1 formation blower fan;
On two impellers (first impeller 2 and second impeller 8) all design regulate the unbalancing value of both sides impeller for 160mg wind wheel dynamic balancing piece 3 and 80mg wind wheel dynamic balancing piece 4 by wind wheel dynamic balancing piece;
In single impeller (first impeller 2 and second impeller 8), each interlobate spacing is unequal, and makes its blade pin stretch out axle head towards being rotated counterclockwise 5.3 degree; In order promptly to guarantee air quantity, the easy demoulding when making things convenient for injection moulding again, the impeller blade inclination among the present invention are the inclination (angle that the cross section of blade rotates through when axial height changes) on the circumferencial direction; The impeller difference at twin shaft blower fan two ends, first impeller 2 and second impeller 8 are mirror; Interference fit is adopted in impeller among the present invention and the assembling of motor shaft, makes the impeller can be better in the process of assembling and motor coaxle, reduces the unbalancing value of twin shaft blower fan.
Motor is by power turn-on, and impeller is rotated; Be positioned at fluid between impeller blade also with the impeller high speed rotating, this moment, fluid was subjected to action of centrifugal force, and outlet is thrown out of impeller through between blade; After these fluids that are thrown out of were clamp-oned spiral case, gas pressure intensity increased in the spiral case, and the outlet that is directed to blower fan is at last discharged; Meanwhile, the impeller center forms vacuum owing to gas is thrown out of, and extraneous fluid is under atmospheric effect, along the import intake impeller of twin shaft blower fan, conveying gas so endlessly.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (3)
1. evaporation fan that is used for automotive air-conditioning system, at least comprise spiral case base and impeller, it is characterized in that, adopt centrifugal twin shaft blower fan, described impeller comprises first impeller and second impeller, the means of fixation of twin shaft blower fan is the screw rod push type, and by wedge nut and opening pin, screw rod is fixed to the twin shaft blower fan in the installation room of air-conditioning assembly; First impeller, second impeller stretch out axle head by the interference mount in motor two; Wave filter is fixed in spiral case base spill seat both sides by tapping screw.
2. a kind of evaporation fan that is used for automotive air-conditioning system as claimed in claim 1 is characterized in that, first impeller and second impeller at centrifugal twin shaft blower fan two ends are mirror.
3. a kind of evaporation fan that is used for automotive air-conditioning system as claimed in claim 1 is characterized in that each interlobate spacing is unequal in first impeller and second impeller, and blade stretches out axle head towards being rotated counterclockwise 5.3 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100471494A CN101718277B (en) | 2009-03-06 | 2009-03-06 | Evaporation fan used for vehicle air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100471494A CN101718277B (en) | 2009-03-06 | 2009-03-06 | Evaporation fan used for vehicle air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101718277A CN101718277A (en) | 2010-06-02 |
| CN101718277B true CN101718277B (en) | 2011-11-02 |
Family
ID=42432893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100471494A Expired - Fee Related CN101718277B (en) | 2009-03-06 | 2009-03-06 | Evaporation fan used for vehicle air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101718277B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900680B (en) * | 2012-10-24 | 2016-04-20 | 江苏亚泰机电有限公司 | The glitch-free evaporating fan of automobile air-conditioner of adjustable air volume low noise |
| CN103307039B (en) * | 2013-06-19 | 2015-08-26 | 上海酷风汽车部件有限公司 | A kind of device of double-shaft air blower assembling wind wheel |
| CN103490537A (en) * | 2013-09-30 | 2014-01-01 | 苏州双航机电有限公司 | Automobile air conditioner evaporation fan |
| CN109723658B (en) * | 2018-12-26 | 2020-09-11 | 上海洞彻智能科技有限公司 | Evaporation fan |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672819A (en) * | 1985-08-29 | 1987-06-16 | Diesel Kiki Co., Ltd. | Cooling unit |
| CN2527762Y (en) * | 2001-12-21 | 2002-12-25 | 山东新风股份有限公司 | Air conditioning centrifugal ventilator for train |
| CN2575336Y (en) * | 2002-10-24 | 2003-09-24 | 蒋智勇 | Radiating fan |
| CN2752659Y (en) * | 2004-07-14 | 2006-01-18 | 李兴浩 | Blowing mechanism for air conditioner |
| CN201358933Y (en) * | 2009-03-06 | 2009-12-09 | 上海加冷松芝汽车空调股份有限公司 | Evaporation fan |
-
2009
- 2009-03-06 CN CN2009100471494A patent/CN101718277B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4672819A (en) * | 1985-08-29 | 1987-06-16 | Diesel Kiki Co., Ltd. | Cooling unit |
| CN2527762Y (en) * | 2001-12-21 | 2002-12-25 | 山东新风股份有限公司 | Air conditioning centrifugal ventilator for train |
| CN2575336Y (en) * | 2002-10-24 | 2003-09-24 | 蒋智勇 | Radiating fan |
| CN2752659Y (en) * | 2004-07-14 | 2006-01-18 | 李兴浩 | Blowing mechanism for air conditioner |
| CN201358933Y (en) * | 2009-03-06 | 2009-12-09 | 上海加冷松芝汽车空调股份有限公司 | Evaporation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101718277A (en) | 2010-06-02 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20210306 |
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| CF01 | Termination of patent right due to non-payment of annual fee |