CN202266511U - Range hood fan and range hood - Google Patents
Range hood fan and range hood Download PDFInfo
- Publication number
- CN202266511U CN202266511U CN 201120348635 CN201120348635U CN202266511U CN 202266511 U CN202266511 U CN 202266511U CN 201120348635 CN201120348635 CN 201120348635 CN 201120348635 U CN201120348635 U CN 201120348635U CN 202266511 U CN202266511 U CN 202266511U
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- CN
- China
- Prior art keywords
- kitchen ventilator
- volute
- impeller
- spiral case
- current plate
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- 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 - Lifetime
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Abstract
The utility model mainly aims at providing a range hood fan and a range hood which are capable of effectively reducing noise. The range hood fan comprises a volute and an impeller, the volute comprises a volute portion and a lateral plate, the volute portion is provided with a volute tongue portion, an air inlet is formed on the lateral plate, and an air outlet is formed on one end side of the volute portion opposite to the volute tongue portion. The impeller is installed in the volute with the axial direction of the impeller perpendicular to the lateral plate, rotation of the impeller enables air flow to enter along the axial direction of the impeller through the air inlet and be discharged to the outside of the volute through the air outlet along the radial direction. The range hood fan further comprises a rectifying plate arranged on the radial outer side of the impeller and close to the air inlet and the volute tongue portion, and the rectifying plate is arranged on the radial outer side of the impeller.
Description
Technical field
The utility model relates to a kind of kitchen ventilator blower fan and the kitchen ventilator of this kitchen ventilator blower fan is installed.
Background technique
At present; The kitchen ventilator spiral case comprises volute body, snail tongue, exhaust outlet and air sucking mouth, and wherein, volute body is a spiral helicine disk body; Volute body is to be that the volute body wrapper sheet and the left side plate of helical curve constitutes by the cross section, and left side plate is installed in volute body wrapper sheet both sides and forms the helical disk body.Be provided with the air sucking mouth in the volute body side, be provided with impeller in volute body inside with corresponding part, position, air sucking mouth, the snail tongue is to be positioned at volute body spiral original position, and exhaust outlet is the opening that is positioned at place, volute body spiral ultimate position.Like this, when rotating under the effect of impeller at motor, the air in the volute body is discharged outside the volute body by impeller, and in the inner negative pressure that forms of volute body, oil smoke excretes under the effect of impeller after under suction function, getting into the air sucking mouth.The deficiency of the spiral case of such kitchen ventilator is; The noise of gas in spiral case is bigger, exhaust outlet flue gas velocity skewness, and the exhaust air rate potentiality are performance not; Can make that also the interior noise of spiral case is higher, thereby the kitchen ventilator overall noise that such spiral case is installed is also bigger.
The model utility content
In view of this, the main purpose of the utility model is to provide a kind of kitchen ventilator that can effectively reduce the kitchen ventilator blower fan of noise and use it.
The inventor of the utility model finds through numerical simulation and experimental research, in the kitchen ventilator spiral case, near snail tongue and bigger near the turbulent flow at intake grill place.In addition, well-known, the turbulent flow of air-flow is to cause one of the kitchen ventilator noise very important reasons in the kitchen ventilator.Thereby the basic thought of the utility model is, through in the kitchen ventilator spiral case, current plate being set so that the air-flow is here carried out rectification near the snail tongue and near the intake grill place, thus the noise that produces can reduce kitchen ventilator work widely the time.
For achieving the above object, the utility model adopts following technological scheme, a kind of kitchen ventilator blower fan; Comprise spiral case and impeller, said spiral case comprises volute portion and side plate, and said volute portion has the snail tongue; On said side plate, be formed with intake grill, at distolateral a be formed with exhaust outlet opposite with the snail tongue of said volute portion, said impeller is installed in the spiral case with its mode that is axially perpendicular to said side plate; By the rotation of impeller make air-flow via intake grill from its axial entering; Radially discharge and be discharged to the outside of spiral case from it, it is characterized in that, also comprise current plate via said exhaust outlet; Said current plate is provided with near said intake grill and near said snail tongue, and this current plate is arranged on the radial outside of said impeller.
Draw from the above mentioned, adopt such kitchen ventilator blower fan, current plate is being set, the air-flow is here carried out rectification by this current plate near said intake grill and near the position of said snail tongue, thus the noise that produces can reduce kitchen ventilator work widely the time.
Preferably, said current plate is perpendicular to said side plate setting.
Draw from the above mentioned, because current plate perpendicular to said side plate setting, carries out rectification thereby help current plate to intake grill and near the position of said snail tongue.
Preferably, said current plate is along the elongated surfaces of the volute helicoid of said volute portion and form.
Draw from the above mentioned; Owing to the elongated surfaces of current plate along the volute helicoid of said volute portion forms, thereby the shape of current plate is roughly consistent with the volute face; And the position is positioned on the elongated surfaces of volute face, can more effectively carry out rectification to intake grill and near the position of said snail tongue.
Preferably, said current plate is installed on the inwall of said side plate, thereby helps realizing the installation to current plate more.
Preferably, said current plate forms more away from the more little shape of said side plate width, avoids the width away from an end of side plate because of current plate to hinder the air intake air-flow greatly and circulates towards the exhaust outlet direction.
Simultaneously, the utility model has also proposed a kind of kitchen ventilator, it is characterized in that, this kitchen ventilator comprises aforesaid arbitrary described kitchen ventilator blower fan.
Preferably, the place is provided with the air intake circle at said intake grill, and this air intake circle has the curved surface of continuously smooth transition.
Draw from the above mentioned,, help making the air intake air-flow to get in the spiral case more swimmingly because the main body of air intake circle is the warp surface of continuously smooth transition.
Preferably; Said kitchen ventilator also includes electric machine support, on the outer edge of this electric machine support, is symmetrically arranged with installation foot, wherein; One end of installation foot is perpendicular to the attachment face of motor and be formed on the outer edge of electric machine support, and the other end is parallel to lower casing and is fixed on the outside of this lower casing.
Draw from the above mentioned; Said electric machine support is embedded; Its integral body of motor assembling back sinks in the spiral case and it is positioned at the inner chambers of impeller, like this, and when the air intake air-flow gets into impeller via intake grill or air intake air-flow when in spiral case, circulate conveying; Motor is played certain cooling effect, thereby can improve the working efficiency and the working life that prolongs motor of motor.
Description of drawings
Fig. 1 is the decomposing schematic representation of the kitchen ventilator of the utility model;
Fig. 2 is the structural representation of current plate;
Fig. 3 is the schematic representation that is provided with of current plate and upper casing;
Fig. 4 is the schematic representation that is provided with of current plate, upper casing, impeller;
Fig. 5 is the structural representation of the kitchen ventilator spiral case of the utility model;
Fig. 6 is the worm's eye view of kitchen ventilator spiral case shown in Figure 5;
Fig. 7 is the structural representation of electric machine support.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is carried out detailed explanation.In following mode of execution, be reference with the medial axis of impeller, be inner edge portion near the direction of this medial axis, be the outer edge away from the direction of this medial axis.
Like Fig. 1 and shown in Figure 5, kitchen ventilator includes spiral case 1, is provided with intake grill 14 in the upper end of spiral case 1, is provided with in the lower end of spiral case 1 in order to the electric machine support 4 of motor 3 to be installed.Wherein, Spiral case 1 is a spiral helicine thick disk body; Its cross section is the helical curve wire; This spiral case 1 comprises upper casing 11, lower casing 12 and is arranged on the volute housing 13 (constituting the volute portion in the utility model) between upper casing 11 (constituting the side plate in the utility model) and the lower casing 12 that this upper casing 11 and lower casing 12 all can be connected to the upside and the downside of volute housing 13 through the mode of welding.The spiral original position of spiral case 1 is snail tongue 5 (constituting the snail tongue in the utility model); (being an end opposite with snail tongue 5 of spiral case 1) is formed with opening at place, the spiral ultimate position of spiral case 1; Be exhaust outlet 6, also be provided with at these exhaust outlet 6 places in order to the fixing air channel positioning plate 10 in air channel.Impeller 7 by motor 3 rotary driving is installed in spiral case 1; This impeller 7 is installed in the spiral case 1 with its mode that is axially perpendicular to upper casing 11; By the rotation of this impeller 7 make air-flow via intake grill 14 from its axial entering; Radially discharge from it then, and be discharged to the outside of spiral case 1 via exhaust outlet 6.
In the set inside of spiral case 1 current plate 8 of circular arc is arranged, this current plate 8 is positioned at snail tongue 5 places and is arranged on the radial outside of impeller 7.Current plate 8 is approximately perpendicular to upper casing 11 and is provided with; It is along the elongated surfaces of the volute helicoid of said spiral case 1 and form; The shape that is current plate 8 is roughly consistent with the volute face; And the position is positioned on the elongated surfaces of volute face, thereby can more effectively realize rectification to intake grill 14 and near said snail tongue 5 places.As shown in Figure 2; Current plate 8 comprise assembly department 81 with circular-arc 82, wherein, like Fig. 3 and shown in Figure 4; Assembly department 81 has the attachment face that parallels with upper casing 11; Can on this attachment face, offer the assembly department through hole, accordingly, offer the upper casing through hole that is complementary with this assembly department through hole in the inner edge portion of the upper casing 11 of spiral case 1; Screw capable of using passes assembly department through hole, upper casing through hole successively by the inboard of upper casing 11 and is connected on the nut in upper casing 11 outsides, thereby current plate 8 is fixed to the inboard of upper casing 11.Circular-arc 82 spiral camber with the volute housing 13 of spiral case 1 is corresponding; The one of which end is connected on the assembly department 81 and along the inner edge portion setting of upper casing 22; Its other end is extended to the inside of spiral case 1 towards lower casing 12 directions by upper casing 11; And this curved surface of circular-arc 82 is more away from the more little shape of upper casing 11 its width.Wind gets in the spiral case 1 via the suction of motor 3 and impeller 7 from the intake grill near upper casing 11, through inferring, because the exhaust outlet 6 of snail tongue 5 next-door neighbour's spiral cases 1; The air intake air-flow at intake grill place and the air-out air-flow at exhaust outlet 6 places are crossed, thereby form turbulent flow and produce noise, and in this mode of execution; As shown in Figure 5; 5 places are provided with current plate 8 at the snail tongue, and this current plate 8 extends to the inside of spiral case 1 along spiral camber, the air intake air-flow at snail tongue 5 places and the air-out air-flow at exhaust outlet 6 places are separated; Avoid because of both phase mutual interference turbulization, thus the noise of reduction kitchen ventilator.
Intake grill place at spiral case 1 is provided with air intake circle 9, and is as shown in Figure 1, and this air intake circle 9 is arranged on the inner edge portion place of upper casing 11, and its main body is the warp surface of continuously smooth transition, helps making the air intake air-flow to get into more swimmingly in the spiral case 1.
Like Fig. 6 and shown in Figure 7; Said electric machine support 4 is a ring; On the outer edge of this electric machine support 4, be symmetrically arranged with four installation feet 41, thereby an end of this installation foot 41 embeds in the inboard cavity of impellers 7 this electric machine support 4 perpendicular to the attachment face of motor 3 and the inboard of stretching into impeller 7; Bending takes place and is parallel to lower casing 12 in its other end at lower casing 12 places, offer in the end of electric machine support 4 in order to electric machine support 4 is fixed to the lip-deep mounting hole (not shown) of lower casing 12.On the ring main body of electric machine support 4, also offer through hole 42, this through hole 42 is symmetrically distributed on the ring main body, and itself and installation foot 41 alternately distribute, and between two adjacent installation feet 41, are provided with through hole 42.Middle part at the outer side surface of motor 3 is formed with mounting plate 31, on this mounting plate 31, offers the mounting hole (not shown) that is complementary with through hole 42.When motor 3 is installed and fixed; Can respectively the installation foot 41 of electric machine support 4 be fixed on the outer surface of lower casing 12 through screw; Simultaneously, the ring main body of electric machine support is fixed on the mounting plate 31 of motor 3, motor 3 is embedded in the cavity of inboard of impellers 7.Because electric machine support 4 is embedded; Its integral body of motor assembling back sinks in the spiral case 1 and is positioned at the cavity of impeller 7 inboards; Like this; When the air intake air-flow gets into impeller 7 via intake grill or the air intake air-flow spiral case 1 in, circulate when carrying, motor 3 is played certain cooling effect, thereby can improve the working efficiency of motor and the working life of prolongation motor.
The above is merely the preferred embodiment of the utility model, not in order to restriction the utility model.For example, in the above-described embodiment, current plate 8 is understood that be not limited thereto, this current plate 8 also can adopt planar along the elongation line of the volute helix of spiral case 1 and form.In the above-described embodiment, the assembly department 81 of current plate 8 is arranged on the inboard of upper casing 11, is understood that, is not limited thereto, and this assembly department 81 also can be arranged on the volute housing 13.
In addition, in the above-mentioned mode of execution, the assembly department 81 of current plate 8 and the concrete means of fixation of upper casing 11; And the concrete means of fixation of electric machine support 4 and lower casing 12 and motor 3, the set-up mode that all is complementary through mounting hole and screw is realized, is understood that; Be not limited thereto; This part is an existing technology, also can adopt other means of fixation of the prior art to realize, does not do at this and gives unnecessary details.
In a word, all within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a kitchen ventilator blower fan comprises spiral case and impeller (7), and said spiral case comprises volute portion (13) and side plate (11); Said volute portion (13) has snail tongue (5); On said side plate (11), be formed with intake grill (14), at distolateral a be formed with exhaust outlet (6) opposite with snail tongue (5) of said volute portion (13), said impeller (7) is installed in the spiral case with the mode that it is axially perpendicular to said side plate (11); By the rotation of impeller (7) make air-flow via intake grill (14) from its axial entering; Radially discharge and be discharged to the outside of spiral case from it, it is characterized in that via said exhaust outlet (6)
Also comprise current plate (8), said current plate (8) is provided with near said intake grill (14) and near said snail tongue (5), and this current plate (8) is arranged on the radial outside of said impeller (7).
2. kitchen ventilator blower fan according to claim 1 is characterized in that, said current plate (8) is provided with perpendicular to said side plate (11).
3. kitchen ventilator blower fan according to claim 1 and 2 is characterized in that, said current plate (8) is along the elongated surfaces of the volute face of said volute portion (13) and form.
4. kitchen ventilator blower fan according to claim 1 and 2 is characterized in that, said current plate (8) is installed on the inwall of said side plate (11).
5. kitchen ventilator blower fan according to claim 2 is characterized in that, said current plate (8) forms more away from the more little shape of said side plate (11) width.
6. a kitchen ventilator is characterized in that, said kitchen ventilator comprises arbitrary described kitchen ventilator blower fan among the claim 1-5.
7. kitchen ventilator according to claim 6 is characterized in that, locates to be provided with air intake circle (9) at said intake grill (14), and this air intake circle (9) has the curved surface of continuously smooth transition.
8. kitchen ventilator according to claim 6 is characterized in that, said kitchen ventilator also includes electric machine support (4), on the outer edge of this electric machine support (4), is symmetrically arranged with installation foot (41), wherein,
One end of installation foot (41) is perpendicular to the attachment face of motor (3) and be formed on the outer edge of electric machine support (4), and the other end is parallel to lower casing (12) and is fixed on the outside of this lower casing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120348635 CN202266511U (en) | 2011-09-16 | 2011-09-16 | Range hood fan and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120348635 CN202266511U (en) | 2011-09-16 | 2011-09-16 | Range hood fan and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266511U true CN202266511U (en) | 2012-06-06 |
Family
ID=46157309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120348635 Expired - Lifetime CN202266511U (en) | 2011-09-16 | 2011-09-16 | Range hood fan and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266511U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287402A (en) * | 2011-09-16 | 2011-12-21 | 海尔集团公司 | Draught fan of range hood and range hood |
| CN106016405A (en) * | 2016-07-14 | 2016-10-12 | 广东美的厨房电器制造有限公司 | Range hood motor support, range hood motor installing structure and range hood |
| CN106439971A (en) * | 2016-10-20 | 2017-02-22 | 广东美的厨房电器制造有限公司 | Mounting structure of range hood motor and range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| WO2023103118A1 (en) * | 2021-11-30 | 2023-06-15 | Tcl空调器(中山)有限公司 | Volute structure, air duct component, and air conditioner |
-
2011
- 2011-09-16 CN CN 201120348635 patent/CN202266511U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287402A (en) * | 2011-09-16 | 2011-12-21 | 海尔集团公司 | Draught fan of range hood and range hood |
| CN102287402B (en) * | 2011-09-16 | 2015-08-19 | 海尔集团公司 | Range hood fan and kitchen ventilator |
| CN106016405A (en) * | 2016-07-14 | 2016-10-12 | 广东美的厨房电器制造有限公司 | Range hood motor support, range hood motor installing structure and range hood |
| CN106439971A (en) * | 2016-10-20 | 2017-02-22 | 广东美的厨房电器制造有限公司 | Mounting structure of range hood motor and range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN106482187B (en) * | 2016-11-11 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of application has the range hood of noise reduction impeller |
| WO2023103118A1 (en) * | 2021-11-30 | 2023-06-15 | Tcl空调器(中山)有限公司 | Volute structure, air duct component, and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120606 |