CN2702206Y - Fan used in smoke exhaust ventilator - Google Patents
Fan used in smoke exhaust ventilator Download PDFInfo
- Publication number
- CN2702206Y CN2702206Y CN 03261852 CN03261852U CN2702206Y CN 2702206 Y CN2702206 Y CN 2702206Y CN 03261852 CN03261852 CN 03261852 CN 03261852 U CN03261852 U CN 03261852U CN 2702206 Y CN2702206 Y CN 2702206Y
- Authority
- CN
- China
- Prior art keywords
- fan
- electric machine
- machine casing
- smoke exhaust
- exhaust ventilator
- 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
Links
- 239000000779 smoke Substances 0.000 title claims description 35
- 239000004071 soot Substances 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 14
- 238000010411 cooking Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A fan used in a range hood. The motor housing has upper, bottom and side surfaces defining a generally cylindrical cavity within which the motor and fan are mounted. An air outlet is located on an upper surface of the motor housing. A space between the fan blade and the upper surface of the motor housing increases in a rotational direction of the fan and from one side of the air outlet to an opposite side. The fan has a plurality of arcuate blades with at least one slot inclined toward the radially outer edge of the fan blade to direct the soot on the blades in this direction.
Description
Technical field
The utility model relates to employed smoke exhaust ventilator in the family kitchen, more particularly, the utility model relate to a kind of in smoke exhaust ventilator employed motor housing and single fan component, be used to extract the cooking stove surface and be full of the air of tobacco tar and it is discharged to the outside.
Background technology
Smoke exhaust ventilator is used in the cooking stove surface, is used for the grease that cooking period is produced, common smell and pernicious gas and discharges.Smoke exhaust ventilator comprises a shell body, and described shell body has top board, base plate and the side plate of determining a cover.Electric machine casing with end face, bottom surface and side of determining another cover is comprised in the above-mentioned shell body.
The smoke exhaust ventilator of household kitchen has two kinds of basic structures-be single electric machine structure and bi-motor structure.American documentation literature US4,500,331 have introduced a kind of single electric machine structure.In this patent, electric machine casing has end face, bottom surface, the outer wall of bending and the end of extension.On the bottom surface, have air intake, on the end face of the end regions that extends, have air outlet slit.Motor is installed in case top, and a centrifugal fan is connected on the motor.Motor and fan are positioned at the air intake top.Space between the neighboring of fan and the curved outer wall of housing increases along the direction of rotation of fan, in this space maximum of end regions of described extension, thereby makes the air-flow maximization.The size of use motor and fan in order to increase, the end of extension and exhaust outlet depart from the center (side of smoke exhaust ventilator is bigger than its fore-and-aft direction to side directions) of smoke exhaust ventilator housing.
When cooking, for recovered oil to greatest extent, need be such as more powerful smoke exhaust ventilators such as bi-motor structures, so that discharge the oil smoke that is produced preferablyly.In the bi-motor structure, electric machine casing has end face, bottom surface and peripheral surface, and they have been determined one and have had two covers that roughly become the chamber of mirror image, and each chamber has air inlet in the bottom surface, has exhaust outlet at end face.In each chamber, motor and fan are positioned at the top of air intake.Fan is from the cooking of below zone suction air, and compels this air by the motor casing body cavity, arrives exhaust outlet, in described exhaust outlet, utilizes ventilation duct that it is discharged into the outside.In each chamber, the space between the excircle of fan and the corresponding peripheral surface increases along the direction of rotation of fan, in exhaust port area, and this space maximum.By having two motors and fan, provide bigger suction capactity.In addition, air outlet slit can be in the center between the smoke exhaust ventilator side.
If the mist extractor ability is bigger, then the manufacturing cost of double-motor type smoke exhaust ventilator is higher.Except requiring two motors and fan and extra electric wire and associated electronic component, self also increases electric machine casing, needs more material manufacturing.
Therefore, the purpose of this utility model provides a kind of smoke exhaust ventilator with single motor and fan, compares with the smoke exhaust ventilator of the similar size that has single motor and fan in the prior art, and its mist extractor ability is bigger.
Be not that all aspects of the utility model all relate to this purpose.By to hereinafter introduction, other purpose of the present utility model will become clearer.
The utility model content
According to most preferred embodiment of the present utility model, a kind of electric machine casing and fan component of smoke exhaust ventilator is provided, it comprises the electric machine casing with top, the end and side surface of determining a chamber, this electric machine casing is installed in the shell of smoke exhaust ventilator.A motor is installed in the described electric machine casing, and described motor comprises the fan with a plurality of fan blade.Described fan is suitable for around the motor rotation.Air outlet slit is positioned on the top surface of described electric machine casing.The side of space between the top surface of described fan blade and described electric machine casing along the rotation direction of described fan from described air outlet slit increases to the opposite side of described air outlet slit.
On the other hand, electric machine casing also comprises the upper and lower, and these two parts removably are connected to each other together.
On the other hand, the lower surface of electric machine casing has a wall, and this wall puts in the chamber of determining an air intake.
On the other hand, fan comprises: a plurality of bow-shaped leaves with forward and backward; Basket shape housing and Outer cylindrical stable element.Described fan blade radially extends to described Outer cylindrical stable element from described basket shape housing.On the corresponding front surface of described fan blade, has at least one groove.Described groove from described basket shape housing to the described stable element angle that tilts.
On the other hand, described side surface is cylindrical basically.
In another embodiment, the part of the part of described top surface and described air outlet slit and described basal surface are overlapping.
According to the utility model, a kind of fan that uses in smoke exhaust ventilator is provided, be used for the gas that the cooking stove surface produces is drained, it comprises: a plurality of bow-shaped leaves, basket shape housing and Outer cylindrical stable elements with front and rear surfaces.Described fan blade radially extends to described Outer cylindrical stable element from described basket shape housing.
Foregoing only is the summary that the utility model is carried out, and has only explained a part of the present utility model, does not limit the utility model, and by reading specification and claims, it is clearer that others of the present utility model will become.
Description of drawings
Hereinafter will at length introduce preferred embodiment of the present utility model in conjunction with the accompanying drawings.
Fig. 1 is a face upwarding view, has shown the smoke exhaust ventilator with electric machine casing and fan component that meets the utility model embodiment;
Fig. 2 be one towards the shown viewgraph of cross-section of smoke exhaust ventilator rear side shown in Figure 1;
Fig. 3 is the side viewgraph of cross-section of smoke exhaust ventilator shown in Figure 1;
Fig. 4 is the vertical view of Fig. 2 and electric machine casing shown in Figure 3;
Fig. 5 is the perspective view of Fig. 2 and electric machine casing shown in Figure 3;
Fig. 6 is a viewgraph of cross-section, has shown the electric machine casing with another embodiment of the utility model and the smoke exhaust ventilator of fan component;
Fig. 7 is the vertical view of electric machine casing shown in Figure 6;
Fig. 8 is the perspective view of electric machine casing shown in Figure 6;
Fig. 9 is the viewgraph of cross-section of fan shown in Figure 3;
Figure 10 is the sectional drawing along fan blade shown in Fig. 9 center line 10-10;
Figure 11 is the sectional drawing along fan blade shown in Fig. 9 center line 11-11;
Figure 12 is the sectional drawing along fan blade shown in Fig. 9 center line 12-12.
The specific embodiment
The utility model relates to the smoke exhaust ventilator that use in a kind of kitchen, more particularly, relates to a kind of electric machine casing that uses and fan component in smoke exhaust ventilator.The most preferred embodiment that in Fig. 1～3, has shown smoke exhaust ventilator 10 with electric machine casing and fan component.
The size of housing fixture 26 makes it can ccontaining motor 11, and motor 11 is installed in the electric machine casing cover.After electric machine casing 12 was installed in place, discharging wall 24 is outstanding to pass opening on the end face of shell body, as shown in Figure 2, and the middle position between two sides roughly.Motor 11 and housing fixture 26 are suitable for removably being connected on the shell body 2.Utilize fan cap 38, fan 16 is connected on the motor 11.Fan 16 has the inside basket shape housing 30 around motor 11.Fan blade 17 is radially outstanding from being connected on the inside basket shape housing on the cylindrical stable element 32, and described cylindrical stable element 32 stops fan blade 17 distortion that is distorted during operation.When motor 11 is driven, fan 16 rotates, thereby the air intake by lower panel and electric machine casing is drawn into electric machine casing with air, then air is discharged from air outlet slit, for example is discharged to the outside by being connected on the discharging wall 24 and being directed to outside pipeline (not shown).
In smoke exhaust ventilator operating period, the grease and the similar substance that are drawn into after some gasifications in the gas in the electric machine casing are condensate on its inner surface.Except determining air intake, the cooking stove surface that wall 14 also is used to stop the grease that gathered and liquid to return the below by air intake.The bottom surface 6 of electric machine casing is tilted backward by preceding, thereby utilizes gravity that any liquid that is gathered is directed to outlet 48.Therefore outlet 48 is positioned at minimum point on the bottom surface 6 of electric machine casing.As shown in Figure 3, pipe 21 is connected to outlet 48, so that any liquid is directed in the outer catchment cup 20.
In most preferred embodiment, electric machine casing 12 is columniform basically, and the space minimum between cylindrical stable element 32 and curved side 8.The end face that forces the air flow electric machine casing 4 that fan is designed, and fan is along the rotation of direction shown in arrow among Fig. 4 and Fig. 5.
Space between the end face 4 of electric machine casing and the top of fan blade 74 increases along the fan direction of rotation.Space between the top of fan blade 74 and the end face 4 is in zone 80 place's minimums of the discharging wall of contiguous downwind side, and in zone 82 place's maximums of the discharging wall of contiguous weather side.As shown in Figure 3, along any longitudinal axis of electric machine casing, preferably sloped top face 4 is substantially perpendicular to side 8.Housing fixture 26 and motor also are columniform, and concentric with side 8.With reference to figure 5, end face tilts around housing fixture 26.Space between the end face 4 of fan 16 and electric machine casing is increased, thereby make the air-flow maximization.
By reducing the space between cylindrical stable element 32 and the curved side 8, can increase the size of fan.The size of air intake and motor also can be increased.Compare with the smoke exhaust ventilator of single motor of the prior art, this motor and fan component bring more powerful smoke exhaust ventilator.In addition, compare,, therefore reduced cost owing to only need a motor and fan with the bi-motor smoke exhaust ventilator.
In another embodiment shown in Fig. 6～8, produce additional space in order to improve air-flow.In this embodiment, adopt with a last embodiment in identical Reference numeral represent components identical.Smoke exhaust ventilator 100 comprises shell body 102, and outlet 54 penetrates this shell body 102.Electric machine casing 52 is similar to the electric machine casing in the most preferred embodiment, but it has a bigger air outlet slit of being determined by exit wall 54, and described exit wall 54 is overlapping with the bottom surface 106 of electric machine casing.At the weather side of air outlet slit, the upper surface 104 of electric machine casing is also overlapping with bottom surface 106, above-mentioned overlapping oppositely reducing along the fan rotation.Crooked sidewall 108 has a sloping portion, and it originates in certain point (representing with Reference numeral 28) of fan blade 74 over top and upwards arrives upper surface 104 and exit wall.The inclination angle of the sloping portion on the described sidewall is increased to maximum in the air outlet slit zone.During operation, allow more air to pass through electric machine casing by the exceptional space that this inclination produced.Yet the manufacturing cost of this embodiment is higher.
Best, electric machine casing has the top 62 and the bottom 68 that can be detachably connected to joint 50 places.If the user need dismantle fan 16 or wish electric machine casing inside is cleaned, then can dismantle bottom 68 simply.Joint 50 can be included in the Y shape coupling projection 40 of joint one side, and the edge 60 of lower side inserts in this coupling projection 40.Coupling projection 40 slopes inwardly at the end of Y, so that guiding is provided, and the suitable insertion at assurance edge 60.When these two elements link to each other, make the size of mating projection 40 and edge 60 be suitable for providing a kind of and be slidingly matched closely.
As shown in Figure 5, around the periphery of electric machine casing 12, alignment pin or projection 42 are spaced apart.Alignment pin 42 is set on the outer surface at edge 60, so that guiding to be provided, is urged together until two housing parts 62,68, closely cooperates so that guarantee.Two parts are pulled to together, up to coupling projection 40 till the guide finger 42.Guide finger 42 also provides a kind of visual guidance, makes the user can estimate housing, thereby guarantees that it is ressembled together suitably.
Best, some extra limiters distribute around the peripheral intervals of housing 12, are in place with the upper and lower part 62 and 68 of guaranteeing housing 12 when connecting.As shown in Figure 5, described limiter can comprise paired enhancing pin 46 and reinforcing band 44.Paired enhancing pin 46 is spaced apart around curved surface 8, and one of them pin becomes one with top 62, and another pin becomes one with lower part 68.Determine the size of reinforcing band 48 like this, thereby when the upper and lower part linked to each other, reinforcing band 48 can slip over and strengthen pin 46.By inserting in the groove that strengthens on the pin 46 with the split pin (not shown) or such as similar fixture such as cable connectors or torsade connector, can be with reinforcing band 48 fix in position.Another kind of scheme is, strengthens pin 46 and can adopt self-lock pin or bolt form, and at this moment reinforcing band 48 can be replaced by nut.Be understandable that, also can adopt other limiter.
Best, electric machine casing 12 is by the plastics manufacturing, pin 42 and 46 and described housing integrally molded.Yet electric machine casing also can be made of metal, and sell 42 and 46 and preferably be soldered on upper and lower shell body portion 62 and 68 this moment.This making will provide the strongest fastener, to strengthen the connection between the upper and lower part 62 and 68.
Only the minute quantity grease accumulates on the fan, utilizes and rotates the centrifugal force that fan produces, and most of greases are discharged from.Yet, because forced air is impacted the end face of electric machine casing, so some greases may drip.These greases also will accumulate in the inside of exit wall, and after smoke exhaust ventilator is shut down, above-mentioned grease will drip.In order to stop any grease to return by air intake downwards, shown in Figure 10～12, fan blade is as the grease gatherer.Best, the blade 17 of fan 16 is arc and is positioned like this, thereby the upper surface of a blade 74 is overlapping with the lower surface 72 of adjacent fans blade.The grease that drips from the upper surface of air outlet slit or electric machine casing will drop on the front surface 67 of fan blade 17.Basket shape housing 30 is downward-sloping internally for two grooves 64,70 on front surface 67, tends to cylindrical stable element 32.Grease on the fan blade will be directed to the neighboring of electric machine casing by described groove, and in this position, grease may drip on the basal surface of electric machine casing, finally flows in the outer catchment cup 20.The grease of minute quantity will accumulate on the back side 65 of fan blade 17.During operation, utilize the centrifugal force that rotates fan, above-mentioned radially outward not being discharged from attached to the grease on the fan.Cylindrical stable element 32 is circular bands, and it preferably is made of metal, thereby offers blade construction rigidity.Any grease that accumulates on the element 32 will flow on the base plate of lower surface 6.
In above-mentioned two embodiment, all have the fan protection grid 34 and the fan that are connected on the lower panel 18 and discharge cap 36, also can consider to use a kind of filter.Described filter prevents that further grease is discharged to the cooking stove surface of smoke exhaust ventilator below downwards, but compares with the smoke exhaust ventilator that does not have filter, has limited the air quantity that is drawn in the housing.
Below the utility model has been done very detailed description, thus after reading and having understood this specification, for a person skilled in the art, various changes of the present utility model and revise and will become obvious.So all are so changed and correction is also included within this utility model, so they are in the protection domain of claims.
Claims (3)
1, the fan that uses in a kind of smoke exhaust ventilator is characterized in that, comprising:
A plurality of bow-shaped leaves with forward and backward;
Basket shape housing;
The Outer cylindrical stable element;
Wherein said fan blade radially extends to described Outer cylindrical stable element from described basket shape housing.
2, fan according to claim 1 is characterized in that: also be included at least one groove on the front of described fan blade, described groove from described basket shape housing to the described stable element angle that tilts.
3, fan according to claim 2 is characterized in that: on the front of described fan blade, have two grooves spaced apart, one of these two groove high one low.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HK03102404.3 | 2003-04-03 | ||
| HK03102404A HK1052828A2 (en) | 2003-04-03 | 2003-04-03 | Kitchen range hood motor housing and fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702206Y true CN2702206Y (en) | 2005-05-25 |
Family
ID=30130381
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03261853 Expired - Fee Related CN2702207Y (en) | 2003-04-03 | 2003-05-16 | Motor casing and fan assembly of kitchen range hood |
| CN 03261852 Expired - Fee Related CN2702206Y (en) | 2003-04-03 | 2003-05-16 | Fan used in smoke exhaust ventilator |
| CN 03261851 Expired - Fee Related CN2702205Y (en) | 2003-04-03 | 2003-05-16 | Motor casing and fan assembly of kitchen range hood |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03261853 Expired - Fee Related CN2702207Y (en) | 2003-04-03 | 2003-05-16 | Motor casing and fan assembly of kitchen range hood |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03261851 Expired - Fee Related CN2702205Y (en) | 2003-04-03 | 2003-05-16 | Motor casing and fan assembly of kitchen range hood |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN2702207Y (en) |
| HK (1) | HK1052828A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302432A (en) * | 2019-01-24 | 2021-08-24 | Bsh家用电器有限公司 | Fume extractor and combined device for cooking bench |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878867B (en) * | 2020-07-28 | 2021-11-19 | 宁波方太厨具有限公司 | Air guide box structure and internal circulation range hood applying same |
-
2003
- 2003-04-03 HK HK03102404A patent/HK1052828A2/en not_active IP Right Cessation
- 2003-05-16 CN CN 03261853 patent/CN2702207Y/en not_active Expired - Fee Related
- 2003-05-16 CN CN 03261852 patent/CN2702206Y/en not_active Expired - Fee Related
- 2003-05-16 CN CN 03261851 patent/CN2702205Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113302432A (en) * | 2019-01-24 | 2021-08-24 | Bsh家用电器有限公司 | Fume extractor and combined device for cooking bench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN2702205Y (en) | 2005-05-25 |
| CN2702207Y (en) | 2005-05-25 |
| HK1052828A2 (en) | 2003-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |