CN207687022U - Air intake device and kitchen ventilator - Google Patents
Air intake device and kitchen ventilator Download PDFInfo
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- CN207687022U CN207687022U CN201721840084.5U CN201721840084U CN207687022U CN 207687022 U CN207687022 U CN 207687022U CN 201721840084 U CN201721840084 U CN 201721840084U CN 207687022 U CN207687022 U CN 207687022U
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Abstract
The utility model provides a kind of air intake device and kitchen ventilator, is related to purification technology field.The air intake device includes spiral case, spiral case is equipped with interconnected air inlet and air outlet, impeller is equipped in spiral case, impeller includes sequentially connected upper circle, blade and lower circle, and multiple blades form the impeller portion of tubular, and the inner cavity in impeller portion is equipped with the mid-game of coaxial line, the inner wall of blade and mid-game are affixed, mid-game is equipped with the airflow hole that gas supply stream passes through, and driving part is additionally provided on spiral case, driving part is for driving wheel rotation；The kitchen ventilator includes babinet and above-mentioned air intake device, and babinet is equipped with smoking port and smoke outlet, and air intake device is fixedly arranged in babinet, and the air inlet of air intake device is connected to smoking port, and the air outlet of air intake device is connected to smoke outlet sealing.The setting of mid-game, center of gravity and stress point distance are smaller when wheel rotation, while mid-game plays a supporting role to the blade of impeller, to improve the stability of air intake device, reduces noise when its operation.
Description
Technical field
The utility model is related to purification technology field more particularly to a kind of air intake devices and kitchen ventilator.
Background technology
The manufacturing process of Chinese tradition cooking culture includes decocting, frying, is fried, is roasting etc., is produced during making food big
The oil smoke of amount, and oil smoke is not only more serious to the environmental pollution in kitchen, and also kitchen operation personnel stay in oil smoke surroundings for a long time
It is larger to body harm, it is serious, or even cancer can be suffered from, therefore, people devise to reduce harm of the oil smoke to human body
Oil smoke in kitchen can be transported to external kitchen ventilator, kitchen ventilator is widely used among kitchen therewith.
Air intake device operating in kitchen ventilator generates negative pressure, by the oil smoke of kitchen side sucking air intake device, and by oil smoke
Be transported in the exhaust pipe of kitchen ventilator, the oil smoke in exhaust pipe travels further into common flue, be transported to downstream into
Row processing, therefore, air intake device are the core components of kitchen ventilator, and operation stability directly determines the purification effect of kitchen ventilator
Fruit.
Core component in existing air intake device is impeller, and impeller includes Shang Quan, lower circle and blade, and multiple blades are along week
Tubular impeller is formed to being connected between Shang Quan and lower circle, is connected with mid-game inside lower circle, the drive shaft of mid-game and motor is affixed,
The drive shaft turns of motor drive mid-game and then drive entire wheel rotation, when impeller high-speed rotation, easy to produce vibration, shadow
It rings the normal use of air intake device and noise is larger.
Utility model content
The purpose of this utility model is to provide a kind of air intake device and kitchen ventilators, to solve suction existing in the prior art
In wind apparatus when impeller high-speed rotation, vibration is easy tod produce, the technical problem for causing air intake device performance poor.
Air intake device provided by the utility model, including spiral case, the spiral case are equipped with interconnected air inlet and go out
Air port, is equipped with impeller in the spiral case, and the impeller includes Shang Quan, lower circle and blade, the blade be connected to the upper circle and
Between the lower circle, multiple blades are mutually parallel, and along the circumferential dispersion arrangement of the upper circle, the upper circle with it is described into
Air port is corresponding；Multiple blades form the impeller portion of tubular, and the inner cavity in the impeller portion is equipped with mid-game, the mid-game and institute
Impeller portion coaxial line is stated, and the inner wall of the blade and the mid-game are affixed, the mid-game is equipped with the air-flow that gas supply stream passes through
Hole；It is also detachable on the spiral case to be installed with driving part, the driving end of the driving part at the axle center of the mid-game
Affixed, the driving part drives the wheel rotation for driving mid-game.
Further, the mid-game is located at the position close to the lower circle in the impeller portion, and the mid-game is along its axis
Hollow lug boss is convexed to form to the direction towards the upper circle, the airflow hole is set on the lug boss, the driving
The drive shaft of component with it is detachable affixed at the center of the lug boss.
Further, the spiral case includes foreboard, back plate and coaming plate, and the coaming plate is connected to the foreboard and the back plate
Between, three surrounds the spiral case jointly, and the air inlet is set on the foreboard, and the air outlet is located at the coaming plate and institute
State foreboard, the exit that the back plate end is formed.
Further, the coaming plate includes that the first tablet being successively smoothly connected, spiral plate, arc plate and second are flat
The contour line of plate, coaming plate medial type face is spiral case inlet pressure, and the spiral case inlet pressure includes first be successively smoothly connected
Straight line ab, helix bc, circular arc line cd and second straight line de, wherein the helix bc is obtained using inequilateral base algorithm；Institute
State tonicity ranging from 105mm~115mm of spiral case.
Further, air deflector is equipped at the air outlet of the spiral case, the air deflector for flowing gas from the outside to the core
Through being oriented to when the air outlet.
Further, the back plate outer wall is installed with holder, and the driving part is fixedly arranged on the holder.
Further, the blade profile is arc, and circle where the arc intersects with the outer circle of the lower circle, crosses the friendship
Tangent line angular range on two intersection circles of point is 155 °~170 °.
Further, the arc plate is the volute tongue of the spiral case, the radius of the volute tongue be 11.5mm~
14.5mm。
Further, the distance between the volute tongue inner wall and the impeller outer wall ranging from 10mm~20mm.
Another of the utility model is designed to provide a kind of kitchen ventilator, including babinet and above-mentioned air intake device, described
Babinet is equipped with smoking port and smoke outlet, and the air intake device is fixedly arranged in the babinet, and the air inlet of the air intake device
It is connected to the smoking port, the air outlet of the air intake device is connected to smoke outlet sealing, which has above-mentioned suction
All technique effects of wind apparatus.
The utility model air intake device and kitchen ventilator have the beneficial effect that：
Air intake device and kitchen ventilator provided by the utility model, wherein air intake device includes being used to form gas supply stream to pass through
Air duct spiral case, the impeller for generating driving force to air-flow and driving part for driving wheel rotation, wherein impeller
Impeller portion including tubular, the inner cavity in impeller portion are equipped with coaxial line mid-game, and the driving end of mid-game and driving part is affixed, in mid-game
Equipped with the airflow hole passed through for supplying stream；Wherein, kitchen ventilator includes for accommodating the babinet of air intake device and oil smoke, babinet
Equipped with the smoke outlet for entering the smoking port of babinet for external oil smoke and being discharged for oil smoke.
The driving end of driving part and mid-game are affixed, and mid-game and the inside in impeller portion are affixed, in use, opening driving portion
Part, driving part drive mid-game high-speed rotation, and with the rotation of mid-game synchronous high-speed, multiple impellers turn for impeller portion and Shang Quan, lower circle
Movable property gives birth to negative pressure, and the gas outside air intake device air inlet enters under the action of inside and outside differential pressure inside spiral case, and passes through impeller
The air outlet of spiral case is reached, the conveying to air-flow is completed.
Mid-game is fixedly arranged on inside the impeller portion of tubular, and with impeller portion coaxial line, the inner walls of multiple blades is solid with mid-game
It connects, for driving part by middle dish driving wheel rotation, the junction of driving part and mid-game is the point of application, the center of gravity position in impeller portion
In the position of impeller portion central axis, mid-game is located inside impeller portion, compared with mid-game is located immediately at impeller portion end, stress point
Centroidal distance away from impeller portion is smaller, and stress point is close to its center of gravity when impeller portion high speed rotation, impeller portion both ends uniform force,
Stability is stronger, to improve the job stability of air intake device, correspondingly reduces noise when operation.
In addition, mid-game is fixedly arranged on the inside in impeller portion, multiple impellers are fixedly arranged on along the circumferential direction of mid-game on mid-game excircle, in
Disk can play blade support fixed function, improve blade and be connected to firmness and stability between Shang Quan and lower circle, subtract
Blade deforms upon or loosens and influence the normal operation condition generation of air intake device during few impeller high-speed rotation, thus into
One step improves the stability of air intake device, reduces noise when its operation.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, other drawings may also be obtained based on these drawings.
Fig. 1 is the three dimensional structure diagram for the air intake device that the utility model embodiment provides；
Fig. 2 is the internal structure schematic diagram for the air intake device that the utility model embodiment provides；
Fig. 3 is the three dimensional structure diagram of the spiral case for the air intake device that the utility model embodiment provides；
Fig. 4 is the main structure diagram of the spiral case for the air intake device that the utility model embodiment provides；
Fig. 5 is the main structure diagram of the impeller for the air intake device that the utility model embodiment provides；
Fig. 6 is the close-up schematic view of I in Fig. 5.
Icon：1- spiral cases；2- impellers；3- air deflectors；4- holders；11- air inlets；12- air outlets；Before 13-
Plate；14- back plates；15- coaming plates；151- volute tongues；It is enclosed on 21-；22- blades；It is enclosed under 23-；24- mid-games；241- air-flows
Hole；242- lug bosses.
Specific implementation mode
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality
Novel protected range.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
The present embodiment provides a kind of air intake devices, and as depicted in figs. 1 and 2, including spiral case 1, the spiral case 1 are equipped with mutual
The air inlet 11 and air outlet 12 of connection, the spiral case 1 is interior to be equipped with impeller 2, and the impeller 2 includes upper circle 21, lower circle 23 and leaf
Piece 22, the blade 22 are connected between the upper circle 21 and the lower circle 23, and multiple blades 22 are mutually parallel, and along institute
The circumferential dispersion arrangement of circle 21 is stated, the upper circle 21 is corresponding with the air inlet 11；Multiple blades 22 form tubular
Impeller portion, the inner cavity in the impeller portion is equipped with mid-game 24, the mid-game 24 and impeller portion coaxial line, and the blade 22
Inner wall and the mid-game 24 it is affixed, the mid-game 24 is equipped with the airflow hole 241 that passes through of gas supply stream；May be used also on the spiral case 1
Detachable is installed with driving part, driving end and affixed, the driving portion at the axle center of the mid-game 24 of the driving part
Part drives the impeller 2 to rotate for driving mid-game 24.
The present embodiment also provides a kind of kitchen ventilator, including babinet and above-mentioned air intake device, and babinet is equipped with smoking port and row
Mouth, air intake device are fixedly arranged in babinet, and the air inlet 11 of air intake device is connected to smoking port, the air outlet 12 of air intake device
It is connected to smoke outlet sealing.
Air intake device and kitchen ventilator provided in this embodiment, wherein air intake device includes being used to form gas supply stream to pass through
The spiral case 1 in air duct, the impeller 2 for generating driving force to air-flow and the driving part for driving impeller 2 to rotate, wherein impeller
2 include the impeller portion of tubular, and the inner cavity in impeller portion is equipped with coaxial line mid-game 24, and mid-game 24 and the driving end of driving part are affixed,
Mid-game 24 is equipped with the airflow hole 241 passed through for supplying stream；Wherein, kitchen ventilator includes for accommodating air intake device and oil smoke
Babinet, babinet are equipped with the smoke outlet for entering the smoking port of babinet for external oil smoke and being discharged for oil smoke.
The driving end of driving part and mid-game 24 are affixed, and mid-game 24 and the inside in impeller portion are affixed, in use, opening driving
Component, driving part drive 24 high-speed rotation of mid-game, impeller portion and it is upper circle 21, it is lower circle 23 with 24 synchronous high-speed of mid-game rotate,
The rotation of multiple impellers 2 generates negative pressure, and the gas outside air intake device air inlet 11 enters under the action of inside and outside differential pressure in spiral case 1
Portion, and by the air outlet 12 of the arrival spiral case 1 of impeller 2, complete the conveying to air-flow.
Mid-game 24 is fixedly arranged on inside the impeller portion of tubular, and with impeller portion coaxial line, the inner wall of multiple blades 22 is in
Disk 24 is affixed, and driving part drives impeller 2 to rotate by mid-game 24, and the junction of driving part and mid-game 24 is the point of application, leaf
The center of gravity of wheel portion is located at the position of impeller portion central axis, and mid-game 24 is located inside impeller portion, with mid-game 24 located immediately at impeller
Portion compares end, and centroidal distance of the stress point away from impeller portion is smaller, and stress point is close to its center of gravity, leaf when impeller portion high speed rotation
Wheel portion both ends uniform force, stability is stronger, to improve the job stability of air intake device, when accordingly reducing its operation
Noise.
In addition, mid-game 24 is fixedly arranged on the inside in impeller portion, multiple impellers 2 are fixedly arranged on 24 outer circle of mid-game along the circumferential direction of mid-game 24
Zhou Shang, mid-game 24 can play blade 22 support fixed function, improve blade 22 and are connected between circle 21 and lower circle 23
Firmness and stability reduce blade 22 during 2 high-speed rotation of impeller and deform upon or loosen and to influence air intake device normal
The generation of working condition, to further increase the stability of air intake device.
Specifically, driving part can be driving motor, mid-game 24 is equipped with axis hole, and the motor shaft of driving motor passes through axis
Hole, the end of motor shaft is detachable to be connected with block, and mid-game 24 is fixed on motor shaft by block；Blade 22 with it is upper circle 21 and
Lower circle 23 can be fixedly connected by riveting, and blade 22 can be connect with mid-game 24 by plugged and fixed.
In the present embodiment, as shown in Fig. 2, mid-game 24 is located at close to the position of lower circle 23 in impeller portion, and mid-game 24 is along it
Hollow lug boss 242 is convexed to form axially towards the direction of upper circle 21, airflow hole 241 is set on lug boss 242, driving part
Drive shaft with it is detachable affixed at the center of lug boss 242.The rotation of impeller 2 forms negative pressure, air inlet of the air-flow from spiral case 1
11 enter inside impeller portion, and the air outlet 12 of spiral case 1 is reached by the gap between blade 22, and mid-game 24 is set in impeller portion and leans on
The position of nearly lower circle 23, mid-game 24 is smaller to the barrier effect of air-flow in impeller portion, reduces mid-game 24 to 2 air draught efficiency of impeller
It influences；And 24 upper edge of mid-game its axially towards it is upper circle 21 direction form hollow lug boss 242, the center of the lug boss 242
Place, i.e., the connection of at its axle center and driving end of driving part, the stress point of junction, that is, impeller 2, the stress point is along impeller portion
Axially adjacent to the center of gravity of impeller 2 job stability of air intake device is improved to reduce vibrations when impeller 2 rotates.That is, should
The setting method of mid-game 24 can not only improve the job stability of impeller 2, moreover it is possible to reduce the shadow to air intake device air draught efficiency
It rings.
Specifically, in the present embodiment, as shown in Figure 1-Figure 3, spiral case 1 may include foreboard 13, back plate 14 and coaming plate 15,
Coaming plate 15 is connected between foreboard 13 and back plate 14, and three surrounds spiral case 1 jointly, and air inlet 11 is set on foreboard 13, air outlet
12 are located at the exit that coaming plate 15 is formed with foreboard 13,14 end of back plate.Here it is a kind of concrete structure of spiral case 1, specifically,
Foreboard 13 can be fixed together with coaming plate 15, back plate 14 with coaming plate 15 by welding manner.
In the present embodiment, as shown in Figure 3 and Figure 4, coaming plate 15 includes the first tablet being successively smoothly connected, spiral
The contour line of plate, arc plate and the second tablet, 15 medial type face of coaming plate is spiral case inlet pressure, and spiral case inlet pressure includes seamlessly transitting successively
First straight line ab, helix bc, circular arc line cd and the second straight line de of connection, wherein helix bc uses inequilateral base algorithm
It obtains；The tonicity of spiral case 1 ranging from 105mm~115mm.Here it is a kind of concrete form of spiral case inlet pressure, defines of spiral case 1
Degree is A, A=r360°- r2, A=Q/Bc3u, c3u=(0.65~0.75) c2u, wherein r2For the radius of impeller 2, r360°For spiral
Line starting point b is by the radius at inequilateral base algorithm point of arrival b, the flow that Q designs for air intake device, and B is the width in 1 air duct of spiral case
Degree, the i.e. width (B values can be selected according to the height of impeller 2) of coaming plate 15；According to 2 radius r of fixed impeller2, pass through
Inequilateral base algorithm obtains the radius of four arcs, and smoothly transits and be connected to become helix bc, specifically, the tonicity A of spiral case 1
Value range can be 105mm~115mm.The matching degree of the spiral case inlet pressure and impeller 2 that are obtained using the method is more preferable, into one
Step improves the performance of air intake device.
In the present embodiment, as shown in Figure 1, being equipped with air deflector 3 at the air outlet 12 of spiral case 1, air deflector 3 is used for gas certainly
It is oriented to when flowing through air outlet 12 outside to inside.Impeller 2 generates negative pressure when running, and the oil smoke near 1 air inlet 11 of spiral case is being pressed
Difference effect is lower to reach air inlet 11, and enters inside the impeller portion inside spiral case 1 under the guiding role of air deflector 3, air deflector 3
Air-flow is oriented to, air-flow can be effectively reduced, angle bending occurs at air inlet 11, and generates vortex inside spiral case 1
Area, the occurrence of influencing 2 air draught efficiency of impeller.
Specifically, air deflector 3 can be the annular retaining ring of arc-shaped, which is arranged at the edge of air inlet 11,
Arc-shaped protrusion is protruded on the outer surface of annular retaining ring, air-flow flows through the arc-shaped and protrudes out into inside spiral case 1, arc-shaped
Raised appearance camber line is rounding off line, without sharp dog-ear, when flowing through sharp dog-ear at air inlet 11 to reduce air-flow
The occurrence of generating whirlpool area.
In the present embodiment, as shown in figure 3, holder 4 can also be installed in 14 outer wall of back plate, driving part is fixedly arranged on holder
On 4.Driving part is fixed on holder 4, on the one hand, can be improved the firmness of the connection of driving part and spiral case 1, be reduced driving
Component working generates vibrations and is loosened between spiral case 1 or the occurrence of position offset, improve driving part and air intake device
Job stability；On the other hand, it reduces driving part to be directly anchored on spiral case 1, vibration is generated when driving part works, drive
The junction of dynamic device and spiral case 1 is generated destruction by vibrations to spiral case 1 for a long time, and is influenced 1 interior air-flow of spiral case and flowed to situation
Occur.Specifically, holder 4 can be two, two holders 4 are symmetrical arranged about driving part, the both sides difference of driving part
With holder 4 is detachable is fixedly connected, improve its firmness of the connection.Specifically, the connection of holder 4 and spiral case 1, driving part with
Threaded fastener connection may be used in the connection of holder 4.
Specifically, in the present embodiment, as shown in Figure 5 and Figure 6,22 section of blade can be arc, and circle is under where arc
The outer circle intersection of circle 23, the tangent line angular range crossed on two intersection circles of the intersection point is 155 °~170 °.As shown in fig. 6, figure
Middle β indicates the angle, may range from 155 °~170 °.
In the present embodiment, as shown in figure 4, arc plate is the volute tongue 151 of spiral case 1, the radius of volute tongue 151 can be
11.5mm~14.5mm.As shown in figure 4, R indicates the radius of volute tongue 151 in figure, 11.5mm~14.5mm may range from.
Specifically, in the present embodiment, as shown in figure 4, the distance between 151 inner wall of volute tongue and 2 outer wall of impeller range can be with
For 10mm~20mm.As shown in figure 4, t indicates the distance between 151 inner wall of volute tongue and 2 outer wall of impeller in figure.
Select the air intake device of above-mentioned numberical range preferably can convert dynamic pressure to static pressure, under same traffic, electricity
The rotating speed of motivation is lower, noise smaller；And the space structure that can utilize spiral case 1 to large extent, makes to be formed with inside it
The negative pressuren zone of effect improves its air draught efficiency.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It can still modify to the technical solution recorded in previous embodiment, either to which part or all technical features
Carry out equivalent replacement；And these modifications or replacements, the utility model embodiment that it does not separate the essence of the corresponding technical solution
The range of technical solution.
Claims (10)
1. a kind of air intake device, which is characterized in that including spiral case (1), the spiral case (1) is equipped with interconnected air inlet
(11) and air outlet (12), be equipped with impeller (2) in the spiral case (1), the impeller (2) include upper circle (21), lower circle (23) and
Blade (22), the blade (22) are connected between the upper circle (21) and the lower circle (23), multiple blade (22) phases
It is mutually parallel, and along the circumferential dispersion arrangement of the upper circle (21), the upper circle (21) is corresponding with the air inlet (11)；
Multiple blades (22) form the impeller portion of tubular, and the inner cavity in the impeller portion is equipped with mid-game (24), the mid-game
(24) with impeller portion coaxial line, and the inner wall of the blade (22) and the mid-game (24) are affixed, on the mid-game (24)
The airflow hole (241) passed through equipped with gas supply stream；It is also detachable on the spiral case (1) to be installed with driving part, the driving portion
The driving end of part with it is affixed at the axle center of the mid-game (24), the driving part drives institute for driving mid-game (24)
State impeller (2) rotation.
2. air intake device according to claim 1, which is characterized in that the mid-game (24) is located at close in the impeller portion
It is described it is lower circle (23) position, and the mid-game (24) along its axially towards it is described it is upper circle (21) direction convex to form it is hollow
Lug boss (242), the airflow hole (241) be set to the lug boss (242) on, the drive shaft of the driving part with it is described convex
It rises detachable affixed at the center of portion (242).
3. air intake device according to claim 1, which is characterized in that the spiral case (1) includes foreboard (13), back plate (14)
With coaming plate (15), the coaming plate (15) is connected between the foreboard (13) and the back plate (14), and three surrounds described jointly
Spiral case (1), the air inlet (11) be set to the foreboard (13) on, the air outlet (12) be located at the coaming plate (15) with it is described
The exit that foreboard (13), the back plate (14) end are formed.
4. air intake device according to claim 3, which is characterized in that the coaming plate (15) includes being successively smoothly connected
The first tablet, spiral plate, arc plate and the second tablet, the contour line in coaming plate (15) the medial type face is spiral case inlet pressure, institute
It includes the first straight line ab being successively smoothly connected, helix bc, circular arc line cd and second straight line de to state spiral case inlet pressure,
In, the helix bc is obtained using inequilateral base algorithm；Tonicity ranging from 105mm~115mm of the spiral case (1).
5. according to the air intake device described in any one of claim 1-4, which is characterized in that the air outlet of the spiral case (1)
(12) air deflector (3) is equipped at, the air deflector (3) when flowing through the air outlet (12) from the outside to the core to gas for leading
To.
6. air intake device according to claim 3, which is characterized in that back plate (14) outer wall is installed with holder (4), institute
Driving part is stated to be fixedly arranged on the holder (4).
7. according to the air intake device described in any one of claim 1-4, which is characterized in that blade (22) section is arc
Shape, circle where the arc intersect with the outer circle of the lower circle (23), cross the tangent line angle model on two intersection circles of the intersection point
Enclose is 155 °~170 °.
8. air intake device according to claim 4, which is characterized in that the arc plate is the volute tongue of the spiral case (1)
(151), the radius of the volute tongue (151) is 11.5mm~14.5mm.
9. air intake device according to claim 8, which is characterized in that volute tongue (151) inner wall and the impeller (2) are outside
The distance between wall ranging from 10mm~20mm.
10. a kind of kitchen ventilator, which is characterized in that including the air intake device described in any one of babinet and claim 1-9, institute
It states babinet and is equipped with smoking port and smoke outlet, the air intake device is fixedly arranged in the babinet, and the air inlet of the air intake device
Mouth (11) is connected to the smoking port, and the air outlet (12) of the air intake device is connected to smoke outlet sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840084.5U CN207687022U (en) | 2017-12-25 | 2017-12-25 | Air intake device and kitchen ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840084.5U CN207687022U (en) | 2017-12-25 | 2017-12-25 | Air intake device and kitchen ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207687022U true CN207687022U (en) | 2018-08-03 |
Family
ID=62995647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721840084.5U Active CN207687022U (en) | 2017-12-25 | 2017-12-25 | Air intake device and kitchen ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207687022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869392A (en) * | 2018-08-06 | 2018-11-23 | 杭州老板电器股份有限公司 | Composite impeller, centrifugal blower and range hood |
-
2017
- 2017-12-25 CN CN201721840084.5U patent/CN207687022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869392A (en) * | 2018-08-06 | 2018-11-23 | 杭州老板电器股份有限公司 | Composite impeller, centrifugal blower and range hood |
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