CN207830212U - Draught fan impeller assembly and range hood - Google Patents
Draught fan impeller assembly and range hood Download PDFInfo
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- CN207830212U CN207830212U CN201820106000.3U CN201820106000U CN207830212U CN 207830212 U CN207830212 U CN 207830212U CN 201820106000 U CN201820106000 U CN 201820106000U CN 207830212 U CN207830212 U CN 207830212U
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Abstract
The utility model provides a kind of draught fan impeller assembly and range hood, is related to the technical field of kitchen appliance.A kind of draught fan impeller assembly includes impeller body and pre- vane frame, and pre- vane erection is placed in inside impeller body；Pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, and outer mounting structure with impeller body for connecting, and for being connect with wind turbine driving mechanism, multiple spokes are connected between outer mounting structure and interior mounting structure interior mounting structure；Spoke uses the blade structure in space curved surface shape；When pre- vane frame rotates, pre- vane frame is matched with impeller body, for sucking and being discharged flue gas.A kind of range hood includes draught fan impeller assembly.It the purpose of this utility model is to provide a kind of draught fan impeller assembly and range hood, gas is susceptible between impeller center and blade in the prior art flows " dead zone " to alleviate, the problem of to influence impeller and range hood working efficiency.
Description
Technical field
The utility model is related to the technical fields of kitchen appliance, more particularly, to a kind of draught fan impeller assembly and fume-exhausting
Machine.
Background technology
The core component of range hood when the blower fan system of domestic cooking fume remover, performance quality directly affect range hood
Smoking effect；Currently, the acting component of blower fan system is impeller, the leaf frame used is the side such as plate or drawing type
Formula, the leaf frame act as being fixedly mounted impeller, and the output axis connection of leaf frame and motor.
However, due to being connected between impeller and motor using the leaf frame of aforesaid way so that gas enters impeller internal
And during flowing, it is susceptible to gas flowing " dead zone " between impeller center and blade, passes through to influence air-flow
The process of impeller influences the smoking efficiency of impeller, further influences the quality of entire range hood quality.
Based on problem above, propose that a kind of impeller and range hood that smoking is efficient is particularly important.
The information for being disclosed in the background technology part is merely intended to deepen the reason to the general background technology of the utility model
Solution, and it is known to those skilled in the art existing to be not construed as recognizing or imply that the information is constituted in any form
Technology.
Utility model content
The purpose of this utility model is to provide a kind of draught fan impeller assembly and range hoods, to alleviate the prior art middle period
Gas flowing " dead zone " is susceptible between wheel center and blade, the problem of to influence impeller and range hood working efficiency.
In order to solve the above-mentioned technical problem, the technological means that the utility model is taken is：
A kind of draught fan impeller assembly provided by the utility model includes impeller body and pre- vane frame；
The pre- vane frame is located at the inside of the impeller body, and is fixedly connected with the impeller body；
The pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, the outer mounting structure be used for
The impeller body connection, for being connect with wind turbine driving mechanism, multiple spokes are connected to the interior mounting structure
Between the outer mounting structure and the interior mounting structure；
The spoke uses the blade structure in space curved surface shape；
When the pre- vane frame rotation, the pre- vane frame is matched with the impeller body, for sucking and arranging
Go out flue gas.
As a kind of further technical solution, spoke width direction both sides are set as the first curve and the second song
Line；
First curve and second asymptote of curve are vertical with the pre- axis of vane frame, and described
The distance between one asymptote of curve and second asymptote of curve are 10-25mm.
As a kind of further technical solution, the width of the spoke is 20-40mm, and the thickness of the spoke is 1-
4mm, the distance between first asymptote of curve and second asymptote of curve are 15-20mm.
As a kind of further technical solution, the width of the spoke is 30mm, and the thickness of the spoke is 2-3mm,
The distance between first asymptote of curve and second asymptote of curve are 18mm.
As a kind of further technical solution, the impeller body includes front ring, afterwards circle and multiple blades, and each institute
State blade both ends be separately fixed at the front ring, it is described after enclose outer rim at；
The pre- vane erection is placed between the front ring and the rear circle；
The outer mounting structure setting is connect between the front ring and the rear circle with the impeller body.
As a kind of further technical solution, it is fixedly connected between the outer mounting structure and the rear circle.
As a kind of further technical solution, it is provided at the outer rim of the outer mounting structure for being clamped the blade
Card slot.
As a kind of further technical solution, rotation direction phase that the rotation direction of the pre- vane frame setting is arranged with impeller body
Unanimously.
A kind of range hood provided by the utility model includes the draught fan impeller assembly.
As a kind of further technical solution, the range hood is side-suction type range hood；
The front ring of the impeller body surrounds main air inlet；
The pre- vane erection is disposed adjacent at the position of rear circle of the impeller body, and with the main air inlet phase
It is right.
Compared with prior art, technology possessed by a kind of draught fan impeller assembly and range hood provided by the utility model
Advantage is：
A kind of draught fan impeller assembly provided by the utility model includes impeller body and pre- vane frame；Wherein, pre- vane frame
Be arranged in the inside of impeller body, and pre- vane frame is fixedly connected with impeller body so that leaf frame can impeller ontology into
Row rotation；Pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, wherein and outer mounting structure design is plate-like,
For being fixedly connected with impeller body, interior mounting structure is used to be sequentially connected with wind turbine driving mechanism, and multiple spokes uniformly connect
Between outer mounting structure and interior mounting structure；Further, it is in space curved surface shape that spoke, which uses blade structure, the blade structure,
Shape so when wind turbine driving mechanism drives pre- vane frame rotation, is revolved by pre- vane frame synchronous drive impeller body
Turn, when pre- vane frame and impeller body rotate as a result, mutual cooperation can play the role of smoke evacuation, to improve smoke exhaust efficiency.
The operation principle of draught fan impeller assembly provided by the utility model is：
When wind turbine is opened, wind turbine driving mechanism drives spoke to rotate by interior mounting structure, and drives outer peace by spoke
Assembling structure rotates, and wind turbine driving mechanism can drive entire pre- vane frame to be rotated as a result,；And spoke uses space curved surface shape
The blade structure of shape can play suction-operated, in order to which flue gas is absorbed into leaf when pre- vane frame rotates to flue gas
In the inner cavity for taking turns ontology；Meanwhile being fixedly connected between pre- vane frame and impeller body, pre- vane frame being capable of synchronous drive as a result,
Impeller body rotates,, can be by impeller sheet by the special construction of the blade at impeller body outer rim when impeller body rotates
The gas of internal side is discharged from the gap between adjacent blades, generates certain vacuum degree on the inside of impeller body as a result, makes
Extraneous flue gas can suck and be discharged from the front end of impeller body.Also, flue gas is produced when pre- vane frame is rotated with impeller body
Raw effect is superimposed, to be more advantageous to absorption and discharge flue gas.
In addition, the structure design based on spoke, can generate one on the inside of impeller body when rotated and prewhirl, it can be right
Thus air-flow acting on the inside of impeller body drives the gas flowing on the inside of impeller body.
A kind of draught fan impeller assembly provided by the utility model, is made by the mutual cooperation of pre- vane frame and impeller body
With, significantly improve the wind pressure of blower fan system, to substantially increase absorb flue gas efficiency；In addition, by the way that pre- vane is arranged
Frame can also make the gas on the inside of impeller body flow, and then be effectively relieved on the inside of impeller body and occurred between blade
The problem of " dead zone ", improves the quality of entire range hood.
A kind of range hood provided by the utility model includes above-mentioned draught fan impeller assembly, and the range hood is reached as a result,
To technical advantage and effect include technical advantage and effect that above-mentioned draught fan impeller assembly is reached, no longer go to live in the household of one's in-laws on getting married herein
It states.
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 a kind of first structure schematic diagram for draught fan impeller assembly that the utility model embodiment provides；
Fig. 2 is a kind of the second structural schematic diagram of draught fan impeller assembly that the utility model embodiment provides；
Fig. 3 is the first structure schematic diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1；
Fig. 4 is the sectional view along A-A in Fig. 3；
Fig. 5 is the second structural schematic diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1；
Fig. 6 is the third structural schematic diagram of the pre- vane frame in draught fan impeller assembly shown in FIG. 1.
Icon：100- impeller bodies；110- front rings；It is enclosed after 120-；130- blades；The pre- vane framves of 200-；210-
Outer mounting structure；211- card slots；Mounting structure in 220-；230- spokes；The first curves of 231-；The second curves of 232-.
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 ", " third " are used for description purposes only, and are 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 utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Concrete structure is as shown in figs 1 to 6.
A kind of draught fan impeller assembly provided in this embodiment includes impeller body 100 and pre- vane frame 200；Wherein, it prewhirls
Leaf frame 200 is arranged in the inside of impeller body 100, and pre- vane frame 200 is fixedly connected with impeller body 100 so that leaf frame energy
Enough impeller ontologies 100 are rotated；Pre- vane frame 200 includes outer mounting structure 210, interior mounting structure 220 and multiple spokes
Item 230, wherein outer mounting structure 210 is designed as plate-like, and for being fixedly connected with impeller body 100, interior mounting structure 220 is used
Be sequentially connected in wind turbine driving mechanism, multiple spokes 230 be uniformly connected to outer mounting structure 210 and interior mounting structure 220 it
Between；Further, it is in space curved surface shape that spoke 230, which uses blade structure, the blade structure, so, when wind turbine drives
When mechanism drives pre- vane frame 200 to rotate, is rotated by 200 synchronous drive impeller body 100 of pre- vane frame, prewhirled as a result,
When leaf frame 200 and impeller body 100 rotate, mutual cooperation can play the role of smoke evacuation, to improve smoke exhaust efficiency.
The operation principle of draught fan impeller assembly provided in this embodiment is：
When wind turbine is opened, wind turbine driving mechanism drives spoke 230 to rotate by interior mounting structure 220, and by spoke 230
Outer mounting structure 210 is driven to rotate, wind turbine driving mechanism can drive entire pre- vane frame 200 to be rotated as a result,；And spoke
230 can play suction-operated when pre- vane frame 200 rotates using the blade structure of space curved surface shape to flue gas, so as to
In flue gas is absorbed into the inner cavity of impeller body 100；Meanwhile fixed company between pre- vane frame 200 and impeller body 100
Connect, as a result, pre- vane frame 200 can synchronous drive impeller body 100 rotate, when impeller body 100 rotates, pass through impeller sheet
The special construction of blade 130 at 100 outer rim of body, can be by the gas of 100 inside of impeller body between adjacent blades 130
It is discharged in gap, generates certain vacuum degree in 100 inside of impeller body as a result, enable extraneous flue gas from impeller body 100
Front end suck and be discharged.Also, it is superimposed to the effect of flue gas generation when pre- vane frame 200 is rotated with impeller body 100, from
And it is more advantageous to absorption and discharge flue gas.
In addition, the structure design based on spoke 230, can generate one in 100 inside of impeller body when rotated and prewhirl,
It can do work to the air-flow of 100 inside of impeller body, thus drive the gas flowing of 100 inside of impeller body.
A kind of draught fan impeller assembly provided in this embodiment, passes through the mutual cooperation of pre- vane frame 200 and impeller body 100
It uses, significantly improves the wind pressure of blower fan system, to substantially increase the efficiency for absorbing flue gas；In addition, being prewhirled by setting
Leaf frame 200 can also make the gas of the inside of impeller body 100 flow, so be effectively relieved 100 inside of impeller body with
Occur the problem of " dead zone " between blade 130, improves the quality of entire range hood.
In the optional technical solution of the present embodiment, it is bent that 230 width direction both sides of spoke are set as the first curve 231 and second
Line 232；The asymptote of first curve 231 and the second curve 232 is vertical with the axis of pre- vane frame 200, and the first curve 231
Asymptote and the distance between the asymptote L of the second curve 232 be 10-25mm.
In the optional technical solution of the present embodiment, the width D of spoke 230 is 20-40mm, and the thickness t of spoke 230 is 1-
The distance between the asymptote of 4mm, the asymptote of the first curve 231 and the second curve 232 L is 15-20mm.
In the optional technical solution of the present embodiment, spoke 230 is rectangular along the projection of pre- 200 axis direction of vane frame；Spoke
The width D of item 230 is 30mm, and the thickness t of spoke 230 is 2-3mm, the asymptote of the first curve 231 and the second curve 232
The distance between asymptote is 18mm.
It should be noted that when in order to alleviate draught fan impeller rotation, occur between 100 center of impeller body and blade 130
Gas flows the problem of " dead zone ", in the present embodiment, is redesigned to the structure of pre- vane frame 200 so that pre- vane frame
200 not only have the function of that impeller body 100 is fixedly mounted in support, but also can also be conducive to impeller body when it is rotated
100 absorb flue gas, and so that flue gas also has certain mobility when entering 100 inner cavity of impeller body.
Pre- vane frame 200 in the present embodiment includes outer mounting structure 210, interior mounting structure 220 and multiple spokes 230,
Also, the spoke 230 is designed to space curved surface shape, specifically, spoke 230 can essentially be considered one piece of rectangular slab,
One end of rectangular slab is screwed, and it is bent, so that the rectangular slab is eventually become one and carries spiral shape and arc
Space curved surface structure；Before screwing, the width direction of one end is fixedly connected on rectangular slab with interior mounting structure 220 and is prewhirled
The axis direction of leaf frame 200 is perpendicular, and by after screwing, the width direction is no longer vertical with the axis direction, but phase
Mutually be obliquely installed, and the end face is fixedly connected with interior mounting structure 220, due to being obliquely installed, virtually increase spoke 230 with
Connection area between interior mounting structure 220, improves bonding strength.And the other end of rectangular slab then with outer mounting structure 210
Inner edge be fixedly connected, it is thus achieved that be arranged between interior mounting structure 220 and outer mounting structure 210 it is multiple be in space curved surface
The spoke 230 of shape in favor of improving absorption, the discharge of flue gas, and is alleviated and occurs asking for " dead zone " in 100 inner cavity of impeller body
Topic.
In the present embodiment, according to actual requirement, it sets the width D of spoke 230 to 20-40mm, including 20mm, 25mm,
30mm, 35mm, 40mm, preferably 30mm；The thickness of spoke 230 is set as 1-4mm, including 1mm, 2mm, 3mm, 4mm, into one
Step, preferably 2-3mm, including 2mm, 2.5mm, 3mm etc..And the diameter of phi size of pre- vane frame 200 is needed according to household oil suction
Depending on impeller in the fan platform of smoke machine.
In the present embodiment, the curve of spoke width direction both sides is respectively designated as the first curve 231 and the second curve
232, when the axis vertical of pre- vane frame 200 is placed, pre- vane frame 200 is projected to perpendicular, and pre- vane frame
200 is symmetrical relative to the perpendicular, at this point, the asymptote of the first curve 231 is horizontal, the asymptote of the second curve 232 is same
For level, and the distance between two asymptote of curves L is 10-25mm, i.e., the drop of two curves is 10-25mm, into
One step, spacing L are 15-20mm, including 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, in the present embodiment, by experiment pair
Than research, preferably 18mm.Since the dynamic balancing of draught fan impeller assembly influences obviously, to prewhirl by control as a result, on its performance
The above-mentioned parameter of leaf frame 200 ensure that the total integral dynamic balancing of draught fan impeller is unaffected.
In addition, since eccentricity influences the openings of sizes of curve, the opening of pre- vane frame 200 is considered as a result,
Size, the i.e. size of outer mounting structure 210, the size and gas flow space of entire draught fan impeller assembly size will
The eccentricity of first curve 231 and the second curve 232 is disposed as 1, to meet the requirement of space structure and gas flowing.
In the optional technical solution of the present embodiment, impeller body 100 includes front ring 110, encloses 120 and multiple blades 130 afterwards,
Blade 130 uses arc shaped blade structure, and the both ends of each blade 130 are separately fixed at front ring 110, the afterwards outer rim of circle 120.
Further, pre- vane frame 200 is set between front ring 110 and rear circle 120, and in impeller body 100
Entreat position；The setting of outer mounting structure 210 is connect between front ring 110 and rear circle 120 with impeller body 100.
In the optional technical solution of the present embodiment, it is fixedly connected between outer mounting structure 210 and rear circle 120.
In the optional technical solution of the present embodiment, the rotation direction of rotation direction and the setting of impeller body 100 that pre- vane frame 200 is arranged
It is consistent.
In the optional technical solution of the present embodiment, it is provided at the outer rim of outer mounting structure 210 for being clamped blade 130
Card slot 211.
It should be noted that the draught fan impeller assembly in the present embodiment includes impeller body 100 and pre- vane frame 200, and
It is fixedly connected, and is rotated by 200 impeller ontology 100 of pre- vane frame by wind turbine driving mechanism between the two, specifically
Mounting means is：Outer mounting structure 210 on pre- vane frame 200 is fixedly mounted on front ring 110 and rear circle on impeller body 100
Between 120, hereby it is achieved that the purpose of pre- vane frame 200 is installed in 100 inner cavity of impeller body, to more be obviously improved wind
The total head of machine system.
Further, according to the installation site of pre- vane frame 200 difference, performance is different, and the influence to air-flow is caused to be imitated
Fruit is different, and the rotation direction of the present embodiment, pre- vane frame 200 is consistent with the rotation direction of impeller, i.e., blade 130 is correspondingly arranged with spoke 230,
Thereby, it is possible to play the role of being overlapped mutually to air-flow.However, when outer mounting structure 210 and front ring on pre- vane frame 200
110 when being fixedly connected, at this point, to rotate played effect consistent for pre- vane frame 200 and impeller body 100, plays absorption cigarette
The effect of gas, at this point, the rotation of pre- vane frame 200 influences less the gas flow in 100 cavity of impeller body, to right
Eliminate occur in impeller body 100 inner cavity the effect of air-flow " dead zone " compared with；When the outer mounting structure 210 on pre- vane frame 200 is solid
When being connected to front ring 110 and the centre position of rear circle 120 surely, although at this point, pre- vane frame 200 can be in impeller body 100
The air-flow of leading portion is prewhirled, but the whirlpool area that the air-flow of 100 back segment of impeller body is formed by pre- vane frame 200 obstructs so that after
The gas constricted flow of section so mutually neutralizes the effect of front and back two sections of air-flows, finally makes the axis of pre- vane frame 200
It is not notable to flow effect promoting；As a result, when outer mounting structure 210 is fixedly connected with rear circle 120, pre- vane frame 200 can into
The air-flow entered in 100 inner cavity of impeller body is influenced, and can be reduced air-flow to the greatest extent and be entered in 100 inner cavity of impeller body
Loss so that the axis stream effect promoting of pre- vane frame 200 is notable, and total head is promoted notable, eliminates 100 interior air-flow of impeller body
" dead zone " it is with obvious effects.
It should be pointed out that when outer mounting structure 210 setting front ring 110 and after enclose 120 between and not with front ring 110 or
When circle 120 is fixedly connected after person, in order to make pre- vane frame 200 be fixedly connected with impeller body 100, in outer mounting structure 210
Multiple card slots 211 have uniformly been opened up at outer rim, and when assembling draught fan impeller assembly, blade 130 has been connected in card slot 211, from
And can realize being fixedly connected between outer mounting structure 210 and blade 130, further realize pre- vane frame 200 and impeller sheet
Being fixedly connected between body 100.
A kind of range hood provided in this embodiment includes above-mentioned draught fan impeller assembly；In the present embodiment, fume-exhausting equipment
Body is side-suction type range hood, and the front ring of impeller body surrounds main air inlet, and pre- vane frame setting is after on impeller body
At the position of circle, and the pre- vane frame is also oppositely arranged with main air inlet, the reason for this is that：The setting of pre- vane frame increases impeller
Air mass flow in chamber body in front of pre- vane frame, while the air mass flow at pre- vane frame rear is also reduced, thus
Realize the purpose for increasing air quantity；And if the front and rear sides uniform air intake of pre- vane frame, so that whole air quantity is not much different, but needle
The case where air inlet main to side, side-suction type range hood have certain advantage.In addition, a part of top suction type kitchen ventilator is equally full
Foot.
The range hood includes above-mentioned draught fan impeller assembly, the technical advantage and effect that the range hood is reached as a result,
Including technical advantage and effect that above-mentioned draught fan impeller assembly is reached, no longer repeated herein.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of draught fan impeller assembly, which is characterized in that including：Impeller body and pre- vane frame, the pre- vane erection are placed in
Inside the impeller body；
The pre- vane frame includes outer mounting structure, interior mounting structure and multiple spokes, the outer mounting structure be used for it is described
Impeller body connects, and for being connect with wind turbine driving mechanism, multiple spokes are connected to described the interior mounting structure
Between outer mounting structure and the interior mounting structure；
The spoke uses the blade structure in space curved surface shape；
When the pre- vane frame rotation, the pre- vane frame is matched with the impeller body, for sucking and being discharged cigarette
Gas.
2. draught fan impeller assembly according to claim 1, which is characterized in that spoke width direction both sides are set as
One curve and the second curve；
First curve and second asymptote of curve are vertical with the pre- axis of vane frame, and described first is bent
The distance between the asymptote of line and second asymptote of curve are 10-25mm.
3. draught fan impeller assembly according to claim 2, which is characterized in that the width of the spoke is 20-40mm, institute
The thickness for stating spoke is 1-4mm, and the distance between first asymptote of curve and second asymptote of curve are
15-20mm.
4. draught fan impeller assembly according to claim 3, which is characterized in that the width of the spoke is 30mm, the spoke
The thickness of item is 2-3mm, and the distance between first asymptote of curve and second asymptote of curve are 18mm.
5. draught fan impeller assembly according to claim 1, which is characterized in that the impeller body include front ring, rear circle and
Multiple blades, and the both ends of each blade be separately fixed at the front ring, it is described after enclose outer rim at；
The pre- vane erection is placed between the front ring and the rear circle；
The outer mounting structure setting is connect between the front ring and the rear circle with the impeller body.
6. draught fan impeller assembly according to claim 5, which is characterized in that between the outer mounting structure and the rear circle
It is fixedly connected.
7. draught fan impeller assembly according to claim 5, which is characterized in that be provided at the outer rim of the outer mounting structure
Card slot for being clamped the blade.
8. draught fan impeller assembly according to claim 5, which is characterized in that the rotation direction of the pre- vane frame setting with it is described
The rotation direction of impeller body setting is consistent.
9. a kind of range hood, which is characterized in that including claim 1-8 any one of them draught fan impeller assemblies.
10. range hood according to claim 9, which is characterized in that the range hood is side-suction type range hood；
The front ring of the impeller body surrounds main air inlet；
The pre- vane erection is disposed adjacent at the position of rear circle of the impeller body, and opposite with the main air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106000.3U CN207830212U (en) | 2018-01-22 | 2018-01-22 | Draught fan impeller assembly and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106000.3U CN207830212U (en) | 2018-01-22 | 2018-01-22 | Draught fan impeller assembly and range hood |
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| Publication Number | Publication Date |
|---|---|
| CN207830212U true CN207830212U (en) | 2018-09-07 |
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ID=63394042
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| CN201820106000.3U Active CN207830212U (en) | 2018-01-22 | 2018-01-22 | Draught fan impeller assembly and range hood |
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| CN (1) | CN207830212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087332A (en) * | 2018-01-22 | 2018-05-29 | 杭州老板电器股份有限公司 | Draught fan impeller assembly and range hood |
-
2018
- 2018-01-22 CN CN201820106000.3U patent/CN207830212U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087332A (en) * | 2018-01-22 | 2018-05-29 | 杭州老板电器股份有限公司 | Draught fan impeller assembly and range hood |
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