CN102192192B - Joint structure of exhaust fan - Google Patents
Joint structure of exhaust fan Download PDFInfo
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- CN102192192B CN102192192B CN 201010130174 CN201010130174A CN102192192B CN 102192192 B CN102192192 B CN 102192192B CN 201010130174 CN201010130174 CN 201010130174 CN 201010130174 A CN201010130174 A CN 201010130174A CN 102192192 B CN102192192 B CN 102192192B
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- wind guiding
- exhaust outlet
- guiding structure
- joint
- intake grill
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Abstract
The invention relates to a joint structure of an exhaust fan. The joint structure comprises an air guide structure and a shutter which is installed in the air guide structure; the air guide structure comprises an air inlet and an air outlet which are connected by a side wall in a smooth transition mode; the shape of the air inlet is the same as that of the air outlet of a snail shell which is provided with a blower in the exhaust fan, thus forming a connected through-type structure is formed; the shutter is of an arc structure bent from the middle to two sides and matched with the shape of the air outlet; and the shutter is fixed at air outlet close to the indoor side. The joint structure provided by the invention has the advantages that the air flows much smoothly, the noise is reduced, the air tightness is strengthened, and simultaneously the joint structure is convenient to install.
Description
Technical field
The invention relates to a kind of joint structure, particularly about a kind of joint structure of ventilation fan.
Background technique
Fig. 1 is a kind of metal joint structural representation of known ventilation fan.The metal joint structure 100 of ventilation fan comprises: wind guiding structure 110 and the venetian blind 120 that is installed in wind guiding structure 110 inside; Wind guiding structure 110 is divided into intake grill 111 and exhaust outlet 112 two-part, and intake grill 111 and the hodmadod (not shown) that blower fan is housed connect, exhaust outlet 112 and be connected the connection of the piping outside the house (not shown); Intake grill 111 is square, and exhaust outlet 112 is circular, and square intake grill 111 dwindles gradually to the exhaust outlet 112 of circle and extends, and is connected smoothly by sidewall 113 between intake grill 111 and the exhaust outlet 112, forms the structure of similar funnel.Venetian blind 120 is whole for plane 121 adds the shape of flanging 122, and buckles seven parts such as 125 by gum cover 123, rivet 124, glue and be installed in circular exhaust outlet 112 by the place of outdoor.
As above narrate, the joint structure 100 of known technology is buckled 125 by a venetian blind 120, a wind guiding structure 110, two gum covers 123, two rivets 124 and a glue and is formed.
But there is following problem in the joint structure of above-mentioned known technology:
Because the area of intake grill 111 is excessive, can not connect swimmingly with the hodmadod that blower fan is housed.That is to say that the exhaust outlet of blower fan sharply enlarges in intake grill 111 parts.Like this, the wind that produces when blower fan is during to intake grill 111, the wind of generation can and the sidewall 113 of intake grill bump and produce sinuous flow, have the problem that reduces the air quantity discharge when causing noise producing;
Cause producing the slit between venetian blind 120 and the circular exhaust outlet 112 for the plane adds the shape of flanging because venetian blind 120 is whole, exist tightness (wind easily outdoor by pipeline counter pour into indoor) bad problem;
In addition, as shown in Figure 2, because venetian blind 120 is installed in circular exhaust outlet 112 by the place of outdoor, when setter is fixedly connected with yard piping 121 with exhaust outlet with screw 130, screw 130 can be run into venetian blind 120, has not 120 problems that can open of venetian blind.
Summary of the invention
The object of the present invention is to provide a kind of joint structure of ventilation fan, so that the wind that blower fan produces is more smooth during to intake grill.
For achieving the above object, the joint structure of a kind of ventilation fan provided by the invention, comprise: wind guiding structure and the venetian blind that is installed in wind guiding structure inside, wind guiding structure is divided into intake grill and exhaust outlet two-part, connected by the smooth-sided transition between intake grill and the exhaust outlet, the exhaust outlet shape of hodmadod that blower fan is housed in the shape of described intake grill and the ventilation fan is identical, consists of the through-type structure that connects; Described venetian blind for cooperate the exhaust outlet shape from the centre to the arcuate structure of two lateral bends; Described venetian blind is fixed on exhaust outlet by the place, indoor side.
The exhaust outlet of described wind guiding structure is in the projection plane of the intake grill of above-mentioned wind guiding structure, one side for itself and being connected of above-mentioned intake grill are established partially.
The central shaft of the exhaust outlet of described wind guiding structure is with respect to the central shaft of the intake grill of described wind guiding structure, and one side of deflection intake grill arranges.
It is described that to state wind guiding structure injection molded by resin integrated.
Be provided with metal joint in described joint structure periphery; Screens is set around the described wind guiding structure, is used for this joint structure is fixed on the inside of described metal joint.
Described screens is for to arrange a plurality of flexible claws in this wind guiding structure outside, and the front end of claw is provided with projection, the corresponding plurality of openings that is provided with on the exhaust outlet wall of described metal joint.
Described venetian blind is thin type structure, and the upper surface that relies on the lower surface of outdoor and rely on the indoor side is provided with the guide vane of sheet.
The invention has the advantages that, make Air Flow more smooth, reduce noise, strengthen the bubble-tight while, can also conveniently install.
Description of drawings
Fig. 1 is the schematic representation of the wind guiding structure of known technology;
Fig. 2 is the schematic representation that the mistake of known technology is installed;
Fig. 3 is the schematic representation of wind guiding structure of the present invention;
Fig. 4 is the schematic representation of another angle of wind guiding structure of the present invention;
Fig. 5 is the schematic representation of venetian blind of the present invention;
Fig. 6 is the another kind of embodiment's of venetian blind of the present invention schematic representation;
Fig. 7 A, 7B are that wind guiding structure of the present invention is fit into the schematic representation in the known metal joint.
Embodiment
As shown in Figure 3, Figure 4, be the schematic representation of wind guiding structure of the present invention.As shown in Figure 3, the joint structure 200 of ventilation fan, comprise: wind guiding structure 210 and the venetian blind 220 that is installed in wind guiding structure 210 inside, wind guiding structure 210 is divided into intake grill 211 and exhaust outlet 212 two-part, is connected smoothly by sidewall 213 between intake grill 211 and the exhaust outlet 212.
The exhaust outlet shape of hodmadod (not shown) that blower fan is housed in the shape of intake grill 211 and the ventilation fan is identical, consists of the through-type structure that connects.Described bypass structure refers to that the intake grill 211 of wind guiding structure 210 is for square, exhaust outlet 212 is circular, the shape of intake grill 211 is arranged to the same with the exhaust outlet shape of gas fan hodmadod, the section that has so just reduced between hodmadod exhaust outlet and the joint intake grill is poor, and the wind that the hodmadod exhaust outlet blows out is guided to pass the joint intake grill swimmingly.That is to say, by above-mentioned structure, since wind guiding structure 210 be designed to can smooth and easy connection with the hodmadod that blower fan is housed bypass structure, so, the wind that blower fan produces is during to the intake grill 211 of wind guiding structure 210, can not bump with the sidewall 213 of intake grill 211, just can not produce sinuous flow yet, guaranteed air quantity when having reduced noise.
As shown in Figure 4, the exhaust outlet 212 of wind guiding structure 210 is established partially for it is connected with one side 2110 of above-mentioned intake grill 211 in the projection plane of the intake grill 211 of above-mentioned wind guiding structure 210.And, can also be with the central shaft 2121 of the exhaust outlet 212 of wind guiding structure 210 central shaft 2111 with respect to intake grill 211, one side 2110 of deflection intake grill 211 arranges.Because the wind that blows out of gas fan is inhomogeneous, be set to unanimously by one side 2110 and the one side 2120 of wind guiding structure 210 exhaust outlets 212 that makes intake grill 211, the opposing that exhaust outlet is changed to circle diminishes.That is to say that the side that the wind bundle that blower fan is blown out is many and one side 2110 of intake grill 211 align.Therefore, wind guiding structure 210 can be set to more lack, when keeping the metal joint (not shown) of known technology, the shape of fan outlet is changed to pipe shape by wind guiding structure 210, compare with known technology, the venetian blind (not shown) of the opening end of exhaust outlet (outdoor) can more arrange to the ventilation fan base side.
And as shown in Figure 5, from exhaust outlet 212 is divided into upper and lower central shaft 2122, the one side 2110 that partially is against intake grill 211 by the rotating shaft 221 with venetian blind arranges, and can guarantee the aperture of venetian blind on one side 2110 of the more intake grill 211 of wind bundle.Near venetian blind rotating shaft 221 part needs very large wind bundle owing to open venetian blind, so, blowing to away from the front end of the venetian blind of rotating shaft 221 with the strong wind bundle and to compare, near the parts that blow to the venetian blind rotating shaft 221 are more prone to make open in stable condition.And, can also guarantee larger aperture.Therefore, can not produce because of the weight of venetian blind sinuous flow.Can reduce noise and guarantee air quantity.
Again as shown in Figure 3, wind guiding structure 210 is injection molded by resin integrated in the present embodiment, is equivalent to that namely a wind guiding structure 110 in the known technology joint structure, two gum covers 123, two rivets 124 and a glue are buckled 125 one and forms.Therefore, in the present embodiment, joint structure 200 just only has been made of a venetian blind 220 and a wind guiding structure 210, does not need venetian blind 220 to be fixed in the joint as buckleing five parts such as 125 by two gum covers 123, two rivets 124 and glue in the known technology.When saving material, also reduced man-hour, namely reduced cost; And resin is lightweight, helps venetian blind 220 successfully to be opened, and reduces noise and guarantees air quantity, the stability of enhancing product performance.
Be the schematic representation of venetian blind of the present invention such as Fig. 5.As shown in Figure 5, venetian blind 220 for cooperate exhaust outlet 212 shapes from the centre to the arcuate structure of two lateral bends, and be fixed on exhaust outlet 212 by the place, indoor side.Described arc refers to that a venetian blind 220 is middle to two lateral bend settings from it, is about to venetian blind 220 whole installations and becomes the tortoise shell shape.The indoor side of exhaust outlet 212 refers to the side near the hodmadod exhaust outlet.
Simultaneously because venetian blind 220 is designed to cooperate the arcuate structure of exhaust outlet 212 shapes of wind guiding structure 210, arcuate structure can and the exhaust outlet 212 of wind guiding structure 210 closely cooperate, the slit can not appear, the bad situation of tightness just can not appear yet.
In the present embodiment, venetian blind 220 is designed to lightweight thin type structure.Because venetian blind 220 is fixed on wind guiding structure 210 exhaust outlets 212 by the place of indoor side, venetian blind 220 is from the near distance of the hodmadod that blower fan is housed in other words, can strengthen blast like this, and venetian blind 220 is designed to lightweight thin type structure, and changing to the thickness of 0.8mm by the thickness of the 1.2mm of known technology, outer surface also is provided with the words of the stiffening rib of lattice shape, under the wind action that hodmadod blows out, venetian blind 220 is more prone to be opened, and that is to say, is conducive to reduce noise.
Fig. 6 is the another kind of embodiment's of venetian blind of the present invention schematic representation.As shown in Figure 6, the venetian blind 220 that is provided with of wind guiding structure 210 upper surface 222 that relies on the lower surface 221 of outdoor and rely on the indoor side is provided with the guide vane 223 of sheet.By said structure, from the wind that the hodmadod that blower fan is housed blows out, under the effect of the guide vane 223 that venetian blind 220 is provided with, wind energy is enough to waltz through venetian blind 220 in the situation that does not produce sinuous flow, guarantee air quantity, the stability of enhancing product performance.
Fig. 7 A, 7B are the schematic representation that wind guiding structure of the present invention is fit into the known technology metal joint.Shown in Fig. 7 A, the present invention also arranges a plurality of screens 214 around wind guiding structure 210, screens 214 is included in joint structure 200 outsides plural flexible claw 2141 is set, the front end of claw 2141 is provided with projection 2142, the corresponding plurality of openings 401 that is provided with on the exhaust outlet wall of known technology metal joint 400.When joint structure 200 being snapped in metal joint 400 when interior, the projection 2142 that the front end of a plurality of elastic card claws 2141 is provided with has guiding function, along the inwall of projection 2142 along metal joint 400, joint structure 200 is snapped in the metal joint 400 smoothly, when joint structure 200 is snapped onto the certain position of metal joint 400, the projection 2142 of claw 2141 front ends snaps in the opening 401 of metal joint 400 exhaust outlets, by the elastic reaction of claw 2141, joint structure 200 positively is fixed in the metal joint 400.By the newly-designed wind guiding structure 210 of the present invention is fixed on metal joint 400 inside, reach the purpose that fully shares existing component, metal adds the dual-layer joint structure of resin, improves the attractive in appearance and grade of product.
More than wind guiding structure 210 of the present invention, compare with the metal joint structure 100 of known technology, the shape of the exhaust outlet of blower fan can be in the interior shape conversion to pipeline of shorter distance.That is to say, when keeping known technology metal joint structure 100 total lengths, the shape of fan outlet is changed to pipe shape by wind guiding structure 210, compare with known technology, the venetian blind 220 of opening end (outdoor) that is positioned at the exhaust outlet 212 of wind guiding structure 210 can more be partial to the setting of ventilation fan base side.Therefore, during with the same pipe laying of known technology, shown in Fig. 7 B, even use screw 130, screw 130 can not run into venetian blind 220 yet.In the present embodiment, the position of venetian blind 220 is compared with known technology, can more rely on the indoor side about 30mm is set.The stability of enhancing product performance thus.And the length L 1 of above-mentioned joint is less than the length L 2 of known technology metal joint.When setter was fixed on pipeline on the metal joint 400 with screw 130, when protruding from the wall of metal joint 400 even coping screw 130 is long, screw 130 can can't open the venetian blind 220 that sets within it with the joint interference yet.The stability of enhancing product performance and application property occur in the situation that causes venetian blind 220 not open and close that screws in the time of can avoiding because of the ventilation fan installation.
Claims (7)
1. the joint structure of a ventilation fan, comprise: wind guiding structure and the venetian blind that is installed in wind guiding structure inside, wind guiding structure is divided into intake grill and exhaust outlet two-part, connected by the smooth-sided transition between intake grill and the exhaust outlet, it is characterized in that, the exhaust outlet shape of hodmadod that blower fan is housed in the shape of described intake grill and the ventilation fan is identical, consists of the through-type structure that connects; Described venetian blind for cooperate the exhaust outlet shape from the centre to the arcuate structure of two lateral bends; Described venetian blind is fixed on exhaust outlet by the place, indoor side.
2. the joint structure of ventilation fan according to claim 1, it is characterized in that: the exhaust outlet of described wind guiding structure is in the projection plane of the intake grill of above-mentioned wind guiding structure, one side for itself and being connected of above-mentioned intake grill are established partially.
3. the joint structure of ventilation fan according to claim 1 is characterized in that: the central shaft of the exhaust outlet of described wind guiding structure is with respect to the central shaft of the intake grill of described wind guiding structure, and one side of deflection intake grill arranges.
4. according to claim 1, the joint structure of 2 or 3 described ventilation fans, it is characterized in that: described wind guiding structure is injection molded by resin integrated.
5. the joint structure of ventilation fan according to claim 4 is characterized in that: be provided with metal joint in described joint structure periphery; Screens is set around the described wind guiding structure, is used for this joint structure is fixed on the inside of described metal joint.
6. the joint structure of ventilation fan according to claim 5, it is characterized in that: described screens is for arranging a plurality of flexible claws in this wind guiding structure outside, the front end of claw is provided with projection, the corresponding plurality of openings that is provided with on the exhaust outlet wall of described metal joint.
7. the joint structure of ventilation fan according to claim 1, it is characterized in that: described venetian blind is thin type structure, the upper surface that relies on the lower surface of outdoor and rely on the indoor side is provided with the guide vane of sheet.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130174 CN102192192B (en) | 2010-03-17 | 2010-03-17 | Joint structure of exhaust fan |
| PCT/CN2011/000209 WO2011113297A1 (en) | 2010-03-17 | 2011-02-10 | Ventilator |
| US13/634,032 US10047756B2 (en) | 2010-03-17 | 2011-02-10 | Ventilating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010130174 CN102192192B (en) | 2010-03-17 | 2010-03-17 | Joint structure of exhaust fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102192192A CN102192192A (en) | 2011-09-21 |
| CN102192192B true CN102192192B (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010130174 Active CN102192192B (en) | 2010-03-17 | 2010-03-17 | Joint structure of exhaust fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102192192B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2748674Y (en) * | 2004-11-08 | 2005-12-28 | 广东松下环境系统有限公司 | Ventilation fan |
| CN1763381A (en) * | 2004-10-22 | 2006-04-26 | Lg电子株式会社 | Blower and design method of discharge port thereof |
| CN101285486A (en) * | 2008-06-03 | 2008-10-15 | 江门市金羚排气扇制造有限公司 | Covering and partition type ventilation fan |
| CN201347873Y (en) * | 2009-01-22 | 2009-11-18 | 广东松下环境系统有限公司 | Ventilator coupling structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI228216B (en) * | 2004-03-25 | 2005-02-21 | Quanta Comp Inc | Centrifugal fan |
-
2010
- 2010-03-17 CN CN 201010130174 patent/CN102192192B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763381A (en) * | 2004-10-22 | 2006-04-26 | Lg电子株式会社 | Blower and design method of discharge port thereof |
| CN2748674Y (en) * | 2004-11-08 | 2005-12-28 | 广东松下环境系统有限公司 | Ventilation fan |
| CN101285486A (en) * | 2008-06-03 | 2008-10-15 | 江门市金羚排气扇制造有限公司 | Covering and partition type ventilation fan |
| CN201347873Y (en) * | 2009-01-22 | 2009-11-18 | 广东松下环境系统有限公司 | Ventilator coupling structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102192192A (en) | 2011-09-21 |
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