CN208139376U - Big suction ducting system and range hood - Google Patents
Big suction ducting system and range hood Download PDFInfo
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- CN208139376U CN208139376U CN201820548107.3U CN201820548107U CN208139376U CN 208139376 U CN208139376 U CN 208139376U CN 201820548107 U CN201820548107 U CN 201820548107U CN 208139376 U CN208139376 U CN 208139376U
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- tube body
- top plate
- ducting system
- fume collecting
- exhaust fume
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Abstract
The utility model provides a kind of big suction ducting system and range hood, is related to purification technology field.The big suction ducting system includes tube body and blower fan apparatus, one end of tube body is connected with top plate, top plate is equipped with air outlet, blower fan apparatus includes centrifugal blower, the spiral case of centrifugal blower includes interconnected shaped spiral housing and discharge pipe, centrifugal blower is fixedly arranged in tube body, and corresponding with the size of tube body, and the nozzle of discharge pipe is connected to the air outlet on top plate；When tube body vertical state, there are acute angles between the projection line on side plate for straight line and horizontal line where the maximum gauge of shaped spiral housing side plate；The range hood includes exhaust fume collecting hood and above-mentioned big suction ducting system, and exhaust fume collecting hood is connected to the open at one end of tube body, and exhaust fume collecting hood is equipped with air inlet.The duct cross-section of centrifugal blower is big in the big suction ducting system, good to the absorption cleaning effect of oil smoke.
Description
Technical field
The utility model relates to purification technology field more particularly to a kind of big suction ducting system and range hoods.
Background technique
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, but 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, range hood is widely used among kitchen, fume-exhausting
Machine system family kitchen is the electric appliance of generated oil smoke etc when exhaustion is cooked.
Range hood generally comprises exhaust fume collecting hood and ducting system, and the blower fan apparatus in ducting system generates suction, by kitchen
Interior oil smoke is sucked in ducting system by the air inlet on exhaust fume collecting hood, blower fan apparatus is flowed subsequently through, from the outlet air of blower fan apparatus
Outside mouth discharge range hood, it can be seen that, the performance of ducting system directly determines that range hood purifies the suction of oil smoke
Effect.
Existing range hood is in design, it is contemplated that when installation with the matching of cabinet etc. and the influence of whole height,
The structure of range hood is extremely compact, and range hood is generally vertically installed on wall, and the air outlet of range hood is set to air duct
On the top plate of system level installation；The blower fan apparatus of range hood generally selects centrifugal blower, and the spiral case of centrifugal blower includes spiral shell
The shell and linear discharge pipe, discharge pipe for revolving shape are connect with shell rounding off, and discharge pipe is vertically installed on top plate, and
The air outlet of discharge pipe matches connection with the air outlet on kitchen ventilator top plate, is limited by air duct system space, centrifugal blower
Air duct is smaller, causes range hood poor to the suction clean-up effect of oil smoke.
Utility model content
The purpose of this utility model is to provide a kind of big suction ducting system and range hoods, to solve in the prior art
It in existing range hood, is limited by air duct system space, the air duct of centrifugal blower is smaller, causes range hood to oil smoke
Aspirate the poor technical problem of clean-up effect.
Big suction ducting system provided by the utility model, including tube body and blower fan apparatus, one end of the tube body are affixed
There is top plate, the top plate is equipped with air outlet, and the blower fan apparatus includes centrifugal blower, and the spiral case of the centrifugal blower includes phase
Intercommunicated shaped spiral housing and discharge pipe, the centrifugal blower are fixedly arranged in the tube body, and opposite with the size of the tube body
It answers, the nozzle of the discharge pipe is connected to the air outlet on the top plate；When the tube body vertical state, the propeller cap side
There are acute angles between the projection line on the side plate for straight line and horizontal line where the maximum gauge of plate.
Further, the acute angle is greater than 0 ° and less than 30 °.
Further, the inboard wall of tube body is recessed outward the first groove, on first groove and the shaped spiral housing
The end portion of maximum gauge one end matches.
Further, the second groove is additionally provided on the tube body, maximum is straight on second groove and the shaped spiral housing
The end portion of the diameter other end matches.
Further, when the tube body vertical state, there are angles between the top plate and horizontal plane.
Further, plane where the nozzle of the discharge pipe is parallel with plane where the top plate or is overlapped, and described
Air outlet on top plate is corresponding with the nozzle position of the discharge pipe.
Another of the utility model is designed to provide a kind of range hood, including exhaust fume collecting hood and above-mentioned big suction air duct
System, the exhaust fume collecting hood are connected to the open at one end of tube body, and the exhaust fume collecting hood is equipped with air inlet.
Further, the exhaust fume collecting hood bottom is equipped with oil collection box, the inner wall of the position of the oil collection box and the exhaust fume collecting hood
The position to oil under dripping is corresponding.
Further, filter device is covered on the air inlet of the exhaust fume collecting hood.
Further, check-valves is communicated at the air outlet of the top plate.
The big suction ducting system of the utility model and range hood have the beneficial effect that：
Big suction ducting system provided by the utility model and range hood, wherein big suction ducting system includes being used for
The tube body of blower fan apparatus is installed, one end of tube body is connected with the top plate blocked for the end to tube body, and top plate is equipped with
Air outlet for being discharged for oil smoke further includes for generating suction force for oil smoke sucking kitchen ventilator inside in kitchen and being discharged
Blower fan apparatus, when tube body is vertically-mounted, straight line and horizontal line are on side plate where the maximum gauge of the spiral case side plate of blower fan apparatus
Projection line between there are angles；Wherein, range hood includes above-mentioned for generating the big suction air duct for absorbing power to oil smoke
System and exhaust fume collecting hood for gathering oil smoke, exhaust fume collecting hood are equipped with for being connected to inside range hood and kitchen, enter for oil smoke
Air inlet inside range hood.
In use, opening blower fan apparatus, range hood internal suction is negative pressure state by centrifugal blower, and oil smoke is made in pressure difference
Entered inside it with the lower air inlet through on exhaust fume collecting hood, the impeller after through centrifugal blower enters in spiral case, and from spiral case outlet air
It is discharged at the nozzle of pipe, is ultimately discharged into common flue, is transported to designated position through common flue and is handled, complete fume-exhausting
Absorption cleaning of the machine to oil smoke.
Specifically, the spiral case of centrifugal blower includes front side board, back side panel and is connected to enclosing between front side board and back side panel
Plate, three surrounds spiral case jointly, and front side board and rear side plate shape, size are corresponding, wherein the outer contour of side plate includes
It forms the straight line portion of discharge pipe and forms the spire of shaped spiral housing, cross in the diameter at spire center, length is maximum to be
The maximum gauge of side plate, the length a of the maximum gauge are the shape maximum width of spiral case.Range hood is mounted on the cabinet in kitchen
On interior or wall, tube body state installation in a vertical shape, straight line and horizontal line are on side plate where the maximum gauge of shaped spiral housing side plate
Projection line between there are angle α, then the spiral case of centrifugal blower is b=a/cos α > a, phase in the intracorporal maximum installation width of pipe
Compared with the prior art, the maximum gauge of mounting means spiral case side plate of the centrifugal blower in tube body is a, in the present embodiment, spiral case
The maximum gauge of side plate is that b is greater than a, and spiral case outer dimension increases, and the air duct for leading to for oil smoke flow formed inside spiral case is cut
Face becomes larger, and the impeller of centrifugal blower is constant or becomes large-sized matching increase with spiral case, then suction performance of the centrifugal blower to oil smoke
It improves, accordingly also improves range hood to the absorption cleaning effect of oil smoke.
Detailed description of the invention
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 embodiment 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, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the three dimensional structure diagram of range hood provided by the embodiment of the utility model；
Fig. 2 is the schematic diagram of internal structure of range hood provided by the embodiment of the utility model；
The position opposite with tube body when being centrifugal blower installation in big suction ducting system provided by the embodiment of the utility model Fig. 3
The schematic diagram set；
Schematic diagram when Fig. 4 is centrifugal blower installation in prior art range hood with tube body relative position；
Fig. 5 is the structural schematic diagram of centrifugal blower in range hood provided by the embodiment of the utility model.
Icon：1- exhaust fume collecting hood；2- tube body；3- top plate；4- centrifugal blower；5- filter device；6- check-valves；11-
Air inlet；The first groove of 21-；The second groove of 22-；31- air outlet；41- spiral case；411- shaped spiral housing；412- outlet air
Pipe；4121- nozzle；42- impeller.
Specific embodiment
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
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
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
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting 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, be also possible to be electrically connected；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, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The present embodiment provides a kind of big suction ducting systems, as shown in Figure 1-Figure 3, including tube body 2 and blower fan apparatus, pipe
One end of body 2 is connected with top plate 3, and top plate 3 is equipped with air outlet 31；Blower fan apparatus includes centrifugal blower 4, the snail of centrifugal blower 4
Shell 41 includes interconnected shaped spiral housing 411 and discharge pipe 412, and centrifugal blower 4 is fixedly arranged in tube body 2, and the ruler with tube body 2
Very little corresponding, the nozzle 4121 of discharge pipe 412 is connected to the air outlet 31 on top plate 3；When 2 vertical state of tube body, shaped spiral housing
There are acute angles between the projection line on side plate for straight line and horizontal line where the maximum gauge of 411 side plates.
The present embodiment also provides a kind of range hood, including exhaust fume collecting hood 1 and above-mentioned big suction ducting system, exhaust fume collecting hood 1 with
The open at one end of tube body 2 is connected to, and exhaust fume collecting hood 1 is equipped with air inlet 11.
Big suction ducting system provided in this embodiment and range hood, wherein big suction ducting system includes for pacifying
The tube body 2 of blower fan apparatus is filled, one end of tube body 2 is connected with the top plate 3 blocked for the end to tube body 2, sets on top plate 3
There is the air outlet 31 for the discharge of fuel feeding cigarette, further includes sucking oil smoke in kitchen inside kitchen ventilator side by side for generating suction force
Blower fan apparatus out, when tube body 2 is vertically-mounted, straight line and horizontal line exist where the maximum gauge of 41 side plate of spiral case of blower fan apparatus
There are angles between projection line on side plate；Wherein, range hood includes above-mentioned for absorb to oil smoke the big suction of power
Power ducting system and exhaust fume collecting hood 1 for gathering oil smoke, exhaust fume collecting hood 1 are equipped with for being connected to inside range hood and kitchen, supply
Oil smoke enters the air inlet 11 inside range hood.
In use, opening blower fan apparatus, range hood internal suction is negative pressure state by centrifugal blower 4, and oil smoke is in pressure difference
Entering inside it under effect through the air inlet 11 on exhaust fume collecting hood 1, the impeller 42 after through centrifugal blower 4 enters in spiral case 41, and
It is discharged from the nozzle 4121 of 41 discharge pipe 412 of spiral case, is ultimately discharged into common flue, is transported to designated position through common flue
It is handled, completes range hood to the absorption cleaning of oil smoke.
Specifically, as shown in figure 5, the spiral case 41 of centrifugal blower 4 include front side board, back side panel and be connected to front side board and after
Coaming plate between side plate, three surrounds spiral case 41 jointly, and front side board and rear side plate shape, size are corresponding, wherein side plate
Outer contour include to be formed discharge pipe 412 straight line portion and formed shaped spiral housing 411 spire, cross spire center it is straight
In diameter, the maximum gauge of the maximum as side plate of length, the length a of the maximum gauge is the shape maximum width of spiral case 41.It inhales
Kitchen ventilator is mounted in the cabinet in kitchen or on wall, as shown in figure 3, the state in a vertical shape of tube body 2 is installed, 411 side of shaped spiral housing
Straight line where the maximum gauge of plate and horizontal line between the projection line on side plate there are angle α, then the spiral case 41 of centrifugal blower 4
Maximum installation width in tube body 2 is b=a/cos α > a, compared to the prior art, as shown in figure 4, centrifugal blower 4 is in pipe
The maximum gauge of 41 side plate of mounting means spiral case in body 2 is a, and in the present embodiment, the maximum gauge of 41 side plate of spiral case is greater than for b
A, 41 outer dimension of spiral case increase, and the duct cross-section for leading to for oil smoke flow formed inside spiral case 41 becomes larger, centrifugal blower 4
Impeller 42 is constant or becomes large-sized matching increase with spiral case 41, then centrifugal blower 4 improves the suction performance of oil smoke, accordingly also mentions
High absorption cleaning effect of the range hood to oil smoke.
Specifically, the impeller 42 of centrifugal blower 4 is set on the front side board of spiral case 41, drive is installed on the back side panel of spiral case 41
The driving motor that movable vane wheel 42 rotates, when centrifugal blower 4 operates, oil smoke enters from impeller 42 inside spiral case 41, and in pressure difference
The discharge pipe 412 that the air duct inside spiral case 41 reaches spiral case 41 is flowed through under effect, is discharged from the nozzle 4121 of discharge pipe 412.Snail
41 coaming plate of shell may include the first plate being successively smoothly connected, spiral plate, arc plate and the second plate, coaming plate medial type
The contour line in face is 41 molded line of spiral case, and 41 molded line of spiral case includes the first straight line being successively smoothly connected, helix, circular arc line
And second straight line, wherein helix can be obtained using inequilateral base algorithm, wherein maximum gauge r=r180°+r360°。
Specifically, the range of acute angle α can be greater than 0 ° and less than 30 ° in the present embodiment.411 side plate of shaped spiral housing
Maximum gauge where acute angle between the projection line on side plate of straight line and horizontal line choose above range, can increase
Big 4 outer dimension of centrifugal blower and on the basis of increasing accordingly 4 inside duct cross-section of centrifugal blower, additionally it is possible to reduce centrifugation to the greatest extent
The probability for concerning situation is generated when 41 tilt angle of spiral case of blower 4 with 2 inner wall of tube body.
In the present embodiment, as shown in figure 3, can be recessed outward in 2 inner wall of tube body has the first groove 21, the first groove 21 with
The end portion of maximum gauge one end matches on shaped spiral housing 411.41 molded line of spiral case of spiral spiral case 41 helically arc,
2 inner wall of tube body is recessed outward the first groove 21, the matched nozzle 4121 such as tube body 2 and cabinet, the ruler with 1 junction of exhaust fume collecting hood
It is very little constant, and the maximum gauge that spiral case 41 can be installed in tube body 2 becomes larger, thus approximate constant in range hood outer dimension
On the basis of, the outer dimension of 4 spiral case 41 of centrifugal blower and its duct cross-section size of inside are further increased, it is corresponding further
Improve the clean-up effect of range hood.
Similar, in the present embodiment, the second groove 22, the second groove 22 and shaped spiral housing 411 are also provided on tube body 2
The end portion of the upper maximum gauge other end matches.The setting of second groove 22 is corresponded to each other with the first groove 21, Neng Goujin
One step increases the outer dimension of 4 spiral case 41 of centrifugal blower and its duct cross-section size of inside, accordingly further increases oil suction
The clean-up effect of smoke machine.
In the present embodiment, as shown in Figure 1-Figure 3, when 2 vertical state of tube body, there may be folders between top plate 3 and horizontal plane
Angle.After a period of use, oil smoke enters in tube body 2 kitchen ventilator, builds up and is formed on the side wall of tube body 2 and the inner wall of top plate 3
Oil droplet, under the effect of gravity, the oil droplet on 2 side wall of tube body flow downward out outside range hood along side wall；Oil on 3 inner wall of top plate
Drop gradually flows to lower one end then along 3 inner wall of top plate, until 2 side-walls of tube body connecting with the end are reached, it is downward along side wall
Range hood is flowed out, top plate 3, which is obliquely installed the oil droplet that can be effectively reduced and build up on top plate 3 and directly drips, causes blower fan apparatus
Oil pollution, while can also effectively reduce oil droplet and drip directly down, to below range hood hearth and kitchen tools etc. make
At pollution.
In the present embodiment, the 4121 place plane of nozzle of discharge pipe 412 is parallel with 3 place plane of top plate or is overlapped, and pushes up
Air outlet 31 on plate 3 is corresponding with 4121 position of nozzle of discharge pipe 412.Centrifugation is installed inside the tube body 2 of range hood
After blower 4, when the 4121 place plane of nozzle of discharge pipe 412 is overlapped with 3 place plane of top plate, 4 discharge pipe 412 of centrifugal blower
4,121 1 sections of nozzle match grafting with the air outlet 31 on top plate 3, only the two need to be linked together；Work as discharge pipe
When 412 4121 place plane of nozzle is parallel with 3 place plane of top plate, the two can be linked together by communicating pipe.Out
Relationship that is above-mentioned parallel or being overlapped is set as between the nozzle 4121 of air hose 412 and the air outlet 31 of top plate 3, on the one hand, be convenient for
Connection between 412 nozzle 4121 of discharge pipe and the air outlet 31 of top plate 3 even on the one hand can also reduce 412 nozzle of discharge pipe
There are the leakproofness connected when angle to be difficult to realize between 4121 and the air outlet 31 of top plate 3, and oil smoke is caused to connect in the two
The occurrence of place escapes.
In the present embodiment, 1 bottom of exhaust fume collecting hood is equipped with oil collection box, and the position of oil collection box and the inner wall of exhaust fume collecting hood 1 oil
Position under drippage is corresponding.The greasy dirt accumulated on 2 side wall of top plate 3 and tube body drips downwards under the effect of gravity enters oil-collecting
In box, to reduce pollution caused by hearth that greasy dirt is dropped in below 2 side wall of range hood tube body etc..
Specifically, the detachable bottom for being fixed in exhaust fume collecting hood 1 of oil collection box, kitchen ventilator after a period of use, user
Oil collection box can be disassembled and be cleaned, after the completion of cleaning, clean oil collection box is reinstalled in 1 bottom of exhaust fume collecting hood i.e.
It can.
In the present embodiment, as shown in Fig. 2, filter device 5 can be covered on the air inlet 11 of exhaust fume collecting hood 1.Oil smoke exists
The primary filtration purification that filter device 5 is first passed through under the swabbing action of blower fan apparatus, enters exhaust fume collecting hood then across filter device 5
1 and tube body 2 inside, and behind 4 inside of centrifugal blower, the air outlet 31 on top plate 3 is discharged, and the setting of filter device 5 can be with
Effectively reduce the damages such as oil smoke greasy dirt caused by the components such as 1 inner wall of exhaust fume collecting hood, 2 inner wall of tube body and blower fan apparatus blocking, it is ensured that
The service performance of corresponding component simultaneously prolongs its service life.
In the present embodiment, as shown in Fig. 2, check-valves 6 can also be communicated at the air outlet 31 of top plate 3.Specifically, only
Returning valve 6 includes valve body and valve block, and the air outlet 31 on top plate 3 is connected together by valve body with common flue, and valve block is set to valve
Internal portion changes the sealed condition to valve body by rotation.When range hood works, the valve block in check-valves 6 turns to and valve
There are gap between internal wall, the oil smoke being discharged from range hood is discharged into common flue by the gap；When range hood stops
When only working, valve block turns to the position blocked to valve body under Gravitative Loads or under the driving effect of other driving device
It sets, thus the occurrence of oil smoke recharge for reducing in common flue enters kitchen, causes secondary pollution to kitchen.
Finally it should be noted that：Above embodiments are 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, those skilled in the art should understand that：
It can still modify to technical solution documented by previous embodiment, or to some or all of the technical features
It is equivalently replaced；And these are modified or replaceed, 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 big suction ducting system, which is characterized in that including tube body (2) and blower fan apparatus, one end of the tube body (2) is solid
It is connected to top plate (3), the top plate (3) is equipped with air outlet (31)；
The blower fan apparatus includes centrifugal blower (4), and the spiral case (41) of the centrifugal blower (4) includes interconnected propeller cap
Body (411) and discharge pipe (412), the centrifugal blower (4) is fixedly arranged in the tube body (2), and the size with the tube body (2)
Corresponding, the nozzle (4121) of the discharge pipe (412) is connected to the air outlet (31) on the top plate (3)；The tube body (2)
When vertical state, the projection of straight line and horizontal line on the side plate where the maximum gauge of shaped spiral housing (411) side plate
There are acute angles between line.
2. big suction ducting system according to claim 1, which is characterized in that the acute angle is greater than 0 ° and is less than
30°。
3. big suction ducting system according to claim 1, which is characterized in that tube body (2) inner wall is recessed has outward
First groove (21), the end portion phase of first groove (21) and maximum gauge one end on the shaped spiral housing (411)
Match.
4. big suction ducting system according to claim 3, which is characterized in that it is recessed to be additionally provided with second on the tube body (2)
Slot (22), second groove (22) and the end portion of the maximum gauge other end on the shaped spiral housing (411) match.
5. big suction ducting system described in any one of -4 according to claim 1, which is characterized in that the tube body (2) is vertical
When state, there are angles between the top plate (3) and horizontal plane.
6. big suction ducting system according to claim 5, which is characterized in that the nozzle of the discharge pipe (412)
(4121) plane where is parallel with plane where the top plate (3) or is overlapped, and air outlet (31) and institute on the top plate (3)
Nozzle (4121) position for stating discharge pipe (412) is corresponding.
7. a kind of range hood, which is characterized in that including exhaust fume collecting hood (1) and big suction of any of claims 1-6
Ducting system, the exhaust fume collecting hood (1) are connected to the open at one end of tube body (2), and the exhaust fume collecting hood (1) is equipped with air inlet (11).
8. range hood according to claim 7, which is characterized in that exhaust fume collecting hood (1) bottom is equipped with oil collection box, described
The position of oil collection box and the inner wall of the exhaust fume collecting hood (1) position under dripping that oils are corresponding.
9. range hood according to claim 7, which is characterized in that be provide on the air inlet (11) of the exhaust fume collecting hood (1)
There are filter device (5).
10. range hood according to claim 9, which is characterized in that be communicated at the air outlet (31) of the top plate (3)
Check-valves (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548107.3U CN208139376U (en) | 2018-04-17 | 2018-04-17 | Big suction ducting system and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820548107.3U CN208139376U (en) | 2018-04-17 | 2018-04-17 | Big suction ducting system and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208139376U true CN208139376U (en) | 2018-11-23 |
Family
ID=64292971
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820548107.3U Active CN208139376U (en) | 2018-04-17 | 2018-04-17 | Big suction ducting system and range hood |
Country Status (1)
| Country | Link |
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| CN (1) | CN208139376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109908A (en) * | 2020-09-01 | 2022-03-01 | 佛山市顺德区美的洗涤电器制造有限公司 | Volute, centrifugal fan and range hood |
-
2018
- 2018-04-17 CN CN201820548107.3U patent/CN208139376U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114109908A (en) * | 2020-09-01 | 2022-03-01 | 佛山市顺德区美的洗涤电器制造有限公司 | Volute, centrifugal fan and range hood |
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