CN101592166A - A kind of Worm fan structure that prevents swirling eddy and backflow - Google Patents
A kind of Worm fan structure that prevents swirling eddy and backflow Download PDFInfo
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- CN101592166A CN101592166A CNA200810053359XA CN200810053359A CN101592166A CN 101592166 A CN101592166 A CN 101592166A CN A200810053359X A CNA200810053359X A CN A200810053359XA CN 200810053359 A CN200810053359 A CN 200810053359A CN 101592166 A CN101592166 A CN 101592166A
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Abstract
The present invention relates to the fan of air conditioner, particularly a kind of Worm fan that prevents swirling eddy and backflow, the longitudinal section view that solves the slip ring of existing Worm fan is to cover in the epirelief circular arc line at fan shroud suction port edge and bigger with its gap, make and enter the fan air intake air-flow and between circular arc shroud and circular arc slip ring, forming swirling eddy under the flabellum centrifugal action, produce pneumatic noise and reveal loss, cause the problem of decreased performance such as air quantity of fan, wind speed.Its technological scheme includes: the shroud and the hub disk that are welded in flabellum; Be connected in the wheel hub of hub disk and flabellum; Pivot is fixed in the wheel hub center through hole, and casing is fixed in the fan electromotor of spiral case and air conditioner rear wall; Be installed on the flabellum front, the slip ring of fan spiral case suction port, it is characterized in that: the longitudinal section view of its slip ring is made of for four sections epirelief circular arc line, recessed camber line, recessed U-shaped camber line, baffle plate line, and Worm fan of the present invention is used for air conditioner and can reduces pneumatic noise, improve equipment performance.
Description
Technical field
The present invention relates to air-conditioning technique, particularly a kind of Worm fan structure that prevents swirling eddy and backflow.
Background technique
Generally, for comfortable environment more is provided to the user, air conditioner has utilized by compressor; Condenser; Expansion valve; The compression that vaporizer constitutes, discharge refrigerant circulation loop and by inhale, relief opening; Filter; Air guide; The air circulation loop that fan constitutes is to indoor cooling and heating or purify air, and roughly is divided into split type and integrated type.
Split type identical on function with integrated type, still, split type is that cooling or heating device are set in indoor set, and heat release or cooling and compression set are set in outdoor unit; Integrated type is with cooling or heat release function integration, burrows on the wall in room or directly installation on window.
Existing split cabinet type air conditioner indoor set STRUCTURE DECOMPOSITION figure as shown in Figure 1, it includes chassis 73, vertical synthetic casing 66 and the top cover 65 of front and back casing that be provided with of 73 upside on the chassis, the front and the top, bi-side that are combined in casing 66 are formed with front relief opening 104a and two side relief opening 104c separately, adjust the direction of the air of discharging by side relief opening 104c when opening and closing side relief opening 104c, two upper lateral parts of plate 104 are installed rotary left and right blinds in front.
In order to suck air in front between plate 104 central lower and the chassis 73, design has installs grid 74 and filter, plasma dust collector 75,78 assemblies on front suction gas port 41 and bottom intakeport 77 and front suction gas port 41 and the bottom intakeport 77.
In the existing indoor apparatus of air conditioner as above-mentioned formation, if feed electric power, fan electromotor 68 and fan 69 drive, make the air of indoor side flow into indoor set inside by above-mentioned following grid 74 and air filter 75, and air by dust collector 78 time foreign substances such as dust be ionized and assembled and have in one's care, delivered to heat exchanger 52 by fan 69 afterwards.
Deliver in the air of heat exchanger 52 and the heat exchanger that circuit refrigeration agent (refrigerant) carries out heat exchange and after being cooled or heating, be expelled back into again by front relief opening 104a and side relief opening 104c and indoorly carry out indoor refrigeration or heat.
The fan of existing cabinet type air conditioner indoor set is the Worm fan (TURBO) in the centrifugal cutter, its structure includes: the shroud that is welded in flabellum, hub disk, be connected in the wheel hub of hub disk, pivot is fixed in the wheel hub center through hole, casing is fixed in the fan electromotor of spiral case and air conditioner rear wall, be installed on the front of flabellum shroud, the slip ring of spiral case suction port, it produces air quantity and the fan efficiency bigger than forward multiple wing centrifugal fan (Sirocco), but, the longitudinal section view of the slip ring of existing Worm fan ring piece shape is the epirelief circular arc line that covers in above-mentioned shroud suction port edge, and epirelief circular arc line diameter is bigger, making concave surface is to descend the shroud and the gap between epirelief circular arc slip ring of concave arc shape bigger, easily produce swirling eddy on the one hand, cause pneumatic noise to increase; There is leakage loss in the aspect in addition, causes efficient or decreased performance.
Summary of the invention
The present invention has the existing the problems referred to above of Worm fan now in order to solve, and discloses a kind of Worm fan structure that prevents swirling eddy and backflow, and its technological scheme structure includes: the shroud and the hub disk that are welded in flabellum; Be connected in the wheel hub of hub disk and flabellum; Pivot is fixed in the wheel hub center through hole, and casing is fixed in the fan electromotor of spiral case and air conditioner rear wall; Be installed on the front of flabellum, shroud, the slip ring of fan spiral case suction port is characterized in that: the longitudinal section view of its slip ring is made of for four sections epirelief circular arc line, recessed camber line, recessed U-shaped camber line, baffle plate line.
It is the center that above-mentioned epirelief circular arc line segment coiled the suction port edge in the past, and little gap is provided with around shroud suction port edge.
Connect lower end, dome arc outside on the above-mentioned recessed arc, connect upper end in the recessed U-shaped camber line down, recessed camber line is concentric and approaching the setting with fan shroud arc.
The upper end connects the outer lower end of recessed camber line in the above-mentioned recessed U-shaped camber line, is extended down to fan blade top under the recessed U-shaped camber line, and the outer upper end of recessed U-shaped camber line connects baffle plate line lower end.
Above-mentioned baffle plate line lower end connects the outer upper end of recessed U-shaped camber line, and the design of baffle plate line upper end has outside right angle bent-up end and is welded on the fan spiral case suction port edge.
Advantage and good effect: the longitudinal section view of the slip ring of Worm fan of the present invention has epirelief circular arc line, recessed camber line, recessed U-shaped camber line, four sections formations of baffle plate line for design, make that the gap dwindles between centrifugal cutter and slip ring, the distance that refluxes lengthening, stop increase, form swirling eddy, eliminated the root that produces pneumatic noise and leakage loss thereby eliminated fan spiral case suction port air-flow toward recessed circular arc shroud and epirelief circular arc slip ring gap under the flabellum centrifugal action, improved Worm fan and the air conditioner product performance and the market competitiveness.
Description of drawings
Fig. 1 is existing cabinet air conditioner STRUCTURE DECOMPOSITION schematic representation;
Fig. 2 is existing Worm fan schematic appearance;
Fig. 3 radially analyses and observe for existing Worm fan structure and wherein forms the swirling eddy streamline chart;
Fig. 4 is a part enlarged view in Fig. 3 circle;
Fig. 5 radially analyse and observe for Worm fan structure of the present invention and wherein swirling eddy by the epirelief circular arc, down concave circular arc, recessed U-shaped cambered surface and baffle plate stop figure;
Fig. 6 is a part enlarged view in Fig. 5 circle.
Critical piece label declaration among each figure
1-spiral case 2-slip ring
3-shroud 4-flabellum
5-wheel hub 6-hub disk
The recessed camber line of 7-epirelief circular arc line 8-
The recessed U-shaped camber line of 9-10-baffle plate line
40-water receiving disc 41-front suction port
47,48-grid 52-heat exchanger
61-controller 65-top cover
66-cabinet shape casing, casing 68-fan electromotor
69-fan, Worm fan 74-grid
75-filter 77-bottom intakeport
78-dust collector 104-front panel
Relief opening 104c-side, 104a-front relief opening
Embodiment
Lift following example and accompanying drawings again in down for further specifying content of the present invention, technological scheme, structure characteristic:
Fig. 5 radially analyse and observe for Worm fan structure of the present invention and wherein swirling eddy by the epirelief circular arc, down concave circular arc, recessed U-shaped cambered surface and baffle plate stop figure;
Fig. 6 is a part enlarged view in Fig. 5 circle.
Shown in Fig. 5-6, the present invention prevents that the Worm fan structure of swirling eddy and backflow from including: the shroud 3 and the hub disk 6 that are welded in flabellum 4; Be connected in the wheel hub 5 of hub disk 6 and flabellum 4; Pivot is fixed in the center through hole of wheel hub 5, and casing is fixed in the fan electromotor 68 of spiral case 1 and air conditioner rear wall; Be installed on the front of flabellum 4, shroud 3, the slip ring 2 of fan spiral case 1 suction port, in order to prevent swirling eddy and leakage reversed flow, the longitudinal section view of its slip ring 2 is linked to be for 10 4 sections by epirelief circular arc line 7, recessed camber line 8, recessed U-shaped camber line 9, baffle plate line.
Above-mentioned epirelief circular arc line 7 is the center with shroud 3 suction port edges, and little gap is provided with around shroud 3 suction port edges.
Connect lower end, dome camber line 7 outside on the above-mentioned recessed camber line 8, connect upper end in the recessed U-shaped camber line 9 down, recessed camber line is concentric and approaching the setting with fan shroud 3 arcs.
The upper end connects the outer lower end of recessed camber line 8 in the above-mentioned recessed U-shaped camber line 9, and recessed U-shaped camber line is extended down to fan blade 4 tops for 9 times, and the outer upper end of recessed U-shaped camber line connects baffle plate line 10 lower ends.
Above-mentioned baffle plate line 10 lower ends connect recessed U-shaped camber line 9 outer upper ends, and the design of baffle plate line 10 upper ends has outside quarter bend end and is welded on the suction port edge of fan spiral case 1.
Referring to Fig. 1,5,6 couples of the present invention prevent that the Worm fan structure mechanism of swirling eddy and backflow is described as follows: after powering up for cabinet type air conditioner indoor set shown in Figure 1, its middle controller, compressor, runnings such as fan electromotor, the refrigerant fluid is under the pressure of compressor by compressor, outdoor heat converter, expansion valve, circulate in the refrigerant circulation circuit that indoor heat converter is formed, indoor air under the centrifugal action of Worm fan 69 from grid 47,48 through front suction port 41, through hole below the water receiving disc, slip ring 2, enter Worm fan 69, the air that enters Worm fan pours spiral case 1 under the centrifugal action of flabellum 4, but by epirelief circular arc line 7, recessed camber line 8, cambered surface and baffle plate that recessed U-shaped camber line 9 forms stop (as Fig. 5, air flow stream line chart in 6) between the circular arc shroud of Worm fan and epirelief circular arc slip ring gap, can not form swirling eddy and leakage reversed flow, its air stream all is directed to the heat exchanger 52 on casing 66 tops by spiral case, with flow back to indoor again from air conditioner front relief opening 104a and two side relief opening 104c after the refrigerant fluid heat exchange in the exchanger refrigerant pipe, because Worm fan structure of the present invention has prevented to form swirling eddy and backflow at recessed circular arc shroud and epirelief circular arc slip ring gap, so eliminated pneumatic noise, improved the efficient of Worm fan and air-conditioning.
Claims (5)
1. a Worm fan structure that prevents swirling eddy and backflow includes: the shroud and the hub disk that are welded in flabellum; Be connected in the wheel hub of hub disk and flabellum; Pivot is fixed in the wheel hub center through hole, and casing is fixed in the fan electromotor of spiral case and air conditioner rear wall; Be installed on the front of flabellum, shroud, the slip ring of fan spiral case suction port is characterized in that: the longitudinal section view of its slip ring is made of for four sections epirelief circular arc line, recessed camber line, recessed U-shaped camber line, baffle plate line.
2. a kind of Worm fan structure that prevents swirling eddy and backflow according to claim 1 is characterized in that: it is the center that above-mentioned epirelief circular arc line segment coiled the suction port edge in the past, and little gap is provided with around shroud suction port edge.
3. a kind of Worm fan structure that prevents swirling eddy and backflow according to claim 1, it is characterized in that: connect lower end, dome arc outside on the above-mentioned recessed camber line, under connect upper end in the recessed U-shaped camber line, recessed camber line is concentric and approaching setting with fan shroud arc.
4. a kind of Worm fan structure that prevents swirling eddy and backflow according to claim 1, it is characterized in that: the upper end connects the outer lower end of recessed camber line in the above-mentioned recessed U-shaped camber line, be extended down to fan blade top under the recessed U-shaped camber line, the outer upper end of recessed U-shaped camber line connects baffle plate line lower end.
5. a kind of Worm fan structure that prevents swirling eddy and backflow according to claim 1, it is characterized in that: above-mentioned baffle plate line lower end connects the outer upper end of recessed U-shaped camber line, and the design of baffle plate line upper end has outside quarter bend end and is welded on the fan spiral case suction port edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810053359XA CN101592166A (en) | 2008-05-30 | 2008-05-30 | A kind of Worm fan structure that prevents swirling eddy and backflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810053359XA CN101592166A (en) | 2008-05-30 | 2008-05-30 | A kind of Worm fan structure that prevents swirling eddy and backflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101592166A true CN101592166A (en) | 2009-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810053359XA Pending CN101592166A (en) | 2008-05-30 | 2008-05-30 | A kind of Worm fan structure that prevents swirling eddy and backflow |
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| CN (1) | CN101592166A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976744A (en) * | 2014-04-14 | 2015-10-14 | 海尔集团公司 | Air flue structure of air conditioner indoor unit |
| CN110848151A (en) * | 2019-11-26 | 2020-02-28 | 张桂伟 | Gas isothermal compression device and compression method thereof |
-
2008
- 2008-05-30 CN CNA200810053359XA patent/CN101592166A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104976744A (en) * | 2014-04-14 | 2015-10-14 | 海尔集团公司 | Air flue structure of air conditioner indoor unit |
| CN104976744B (en) * | 2014-04-14 | 2017-11-28 | 海尔集团公司 | Air conditioner indoor machine air duct structure |
| CN110848151A (en) * | 2019-11-26 | 2020-02-28 | 张桂伟 | Gas isothermal compression device and compression method thereof |
| CN110848151B (en) * | 2019-11-26 | 2021-03-26 | 张桂伟 | Gas isothermal compression device and compression method thereof |
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Application publication date: 20091202 |