CN208605401U - A kind of spiral case component of kitchen ventilator - Google Patents
A kind of spiral case component of kitchen ventilator Download PDFInfo
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- CN208605401U CN208605401U CN201821004733.2U CN201821004733U CN208605401U CN 208605401 U CN208605401 U CN 208605401U CN 201821004733 U CN201821004733 U CN 201821004733U CN 208605401 U CN208605401 U CN 208605401U
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Abstract
The utility model provides a kind of spiral case component of kitchen ventilator, including spiral case ring wall, its forward edge contour line includes the straight line AB of successively rounding off connection, circular arc line BC, circular arc line CD, circular arc line DE, circular arc line EF, circular arc line FG, straight line GH, posterior edges contour line includes the straight line A ' B ' of successively rounding off connection, circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ', straight line G ' H ', and circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', projection of the circular arc line F ' G ' on spiral case front shroud and circular arc line CD, circular arc line DE, circular arc line EF, projection of the circular arc line FG on spiral case front shroud is overlapped, circular arc line BC, circular arc line CD, circular arc line DE, circular arc Line EF, circular arc line FG diameter be sequentially increased.The utility model may be used on kitchen appliance field, is optimized by the structure and size etc. to spiral case, improves the air quantity of kitchen ventilator.
Description
Technical field
The utility model relates to field of kitchen electric appliance, in particular to the spiral case component of a kind of kitchen ventilator.
Background technique
Currently there are compared with polytypic side-suction type range hood, the good appearance of side-suction type range hood, while
Easy cleaning is arranged, and is liked by many consumers.But existing some side-suction type range hoods, since shape, size limit
The reasons such as system, it is not easy to install some larger-size spiral cases, therefore the air quantity of most of side-suction type range hoods is all less than normal, does not allow
Easily meet the use demand that user needs Wind Volume.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of spiral case component of kitchen ventilator, by spiral case
Shape, size etc. optimize, be able to ascend the air quantity of kitchen ventilator, meet the use demand of user.
In order to reach the purpose of this utility model, the technical solution that the utility model is taken is as follows:
A kind of spiral case component of kitchen ventilator, including spiral case front shroud, spiral case back shroud and spiral case ring wall, the spiral case ring wall
Front and rear sides connect respectively with the spiral case front shroud and the spiral case back shroud, the edge wheel of the front side of the spiral case ring wall
Profile includes straight line AB, the circular arc line BC, circular arc line CD, circular arc line DE, circular arc line EF, circular arc line of successively rounding off connection
FG, straight line GH, the edge wheel profile of the rear side of the spiral case ring wall include straight line A ' B ', the circular arc line of successively rounding off connection
B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ', straight line G ' H ', and the circular arc line C ' D ', institute
State circular arc line D ' E ', the circular arc line E ' F ', projection of the circular arc line F ' G ' on the spiral case front shroud and the circular arc
The projection of line CD, the circular arc line DE, the circular arc line EF, the circular arc line FG on the spiral case front shroud is respectively superposed,
The circular arc line BC, the circular arc line CD, the circular arc line DE, the circular arc line EF, the circular arc line FG diameter successively increase
Greatly, the circular arc line B ' C ', the circular arc line C ' D ', the circular arc line D ' E ', the circular arc line E ' F ', the circular arc line F ' G '
Diameter be sequentially increased.
Optionally, point H, H on the spiral case ring wall ', G, G ' between form warp surface, point A on the spiral case ring wall,
A ', B, B ' between form warp surface；
Point A, A on the spiral case ring wall ', H, H ' in the same plane, and point A, A ', H, H ' be connected after form square
Shape.
Optionally, the angle between the straight line AB and straight line LM is 65 ° -75 °, the straight line A ' B ' and the straight line LM
Between angle be 30 ° -40 °, angle between the straight line GH and the straight line LM is 65 ° -75 °, the straight line G ' H ' with
Angle between the straight line LM is 60 ° -70 °,
Wherein, the straight line LM crosses the center of blower and was parallel to the straight line of point A, H.
Optionally, it crosses the center O of blower and was parallel to the straight line of the straight line of point A, H and the left and right two of the spiral case ring wall
The intersection point at end is respectively L, M, and the length ratio of OM and OL are 1:1.2 ~ 1:1.4,
Cross the center O of blower and be parallel to point A, A ' straight line straight line and the spiral case ring wall upper and lower ends friendship
Point is respectively N, P, and the length ratio of ON and OP are 1:1.2 ~ 1:1.4.
Optionally, the distortion for being formed with volute tongue on the spiral case ring wall, the volute tongue is point B, B and being formed between ', C, C '
Face, arc-shaped, the edge contour BC of the front side of the volute tongue that the edge contour B ' C ' of the rear side of the volute tongue is R1 in radius
It is the arc-shaped of R2 in radius, and the ratio of R1 and R2 is 0.29-0.78.
Optionally, R1 4mm-7mm, R2 9mm-14mm.
Optionally, the circular arc line BC is the circular arc line that diameter is 20mm, central angle is 119 ° -125 °, the circular arc line
CD is the circular arc line that diameter is 227mm, central angle is 44 ° -50 °, the circular arc line DE be diameter be 312mm, central angle is
66 ° -72 ° of circular arc line, the circular arc line EF are the circular arc line that diameter is 363mm, central angle is 107 ° -113 °, the circular arc
Line FG is the circular arc line that diameter is 414mm, central angle is 68 ° -74 °.
Optionally, the spiral case back shroud includes rear mainboard and the first back plate after described below mainboard, and described the
One back plate is hang plate of the lower part towards top rake.
Optionally, the angle between the rear mainboard and first back plate is 150 ° -165 °.
Optionally, the spiral case component of the kitchen ventilator further includes spiral case connecting plate, the surrounding difference of the spiral case connecting plate
It is connect with the upper end of the spiral case front shroud, the spiral case back shroud and the spiral case ring wall；First back plate and the snail
The upper surface of shell connecting plate is vertical.
The spiral case component of kitchen ventilator provided by the embodiment of the utility model has the following beneficial effects:
1, corresponding Optimal improvements are carried out by the spiral case component to kitchen ventilator, by the front and back for rationally designing spiral case ring wall
Shape, size of edge wheel profile of side etc., so that the intake of spiral case component increases；
2, in the edge wheel profile of the front side of spiral case ring wall, straight line AB, circular arc line BC, circular arc line CD, circular arc line DE, circular arc
Successively rounding off connects by line EF, circular arc line FG, straight line GH, in the edge wheel profile of the rear side of spiral case ring wall, straight line A ' B ', circle
Successively rounding off connects by camber line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ', straight line G ' H '
It connects, avoids the tie point for occurring sharp on spiral case ring wall, and then influence flowing of the oil smoke in spiral case, oil smoke occur disorderly
Stream influences intake, increases the noise etc. of kitchen ventilator work；
3, it is sequentially increased by the diameter of design circular arc line BC, circular arc line CD, circular arc line DE, circular arc line EF, circular arc line FG,
Circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ' diameter be sequentially increased, and pass through
It designed the center O of blower and was parallel in the straight line LM of straight line of point A, H, the length ratio of OM and OL are 1:1.2 ~ 1:
1.4, cross the center O of blower and be parallel to point A, A ' straight line straight line NP in, the length ratio of ON and OP is 1:1.2 ~ 1:
1.4, so that in spiral case component, blower eccentric setting, and along the flow direction of oil smoke, ventilation-sectional area is gradually increased, and is had
Conducive to the intake for improving spiral case component；
4, on spiral case ring wall, straight line AB and straight line A ' B ', straight line GH and projection of the straight line G ' H ' on spiral case front shroud are not
Be overlapped, warp surface formed between ', G, G ' in this way in point H, H, in point A, A between ', B, B ' and form warp surface, make point A, A ', H,
The air outlet that H ' is formed with respect to the horizontal plane has certain inclination angle, increases the air-out area of air outlet；Point A, A ', H, H ' phase
Rectangle is formed after even, so that air outlet is in rectangle, and the spiral case connecting plate for ensuring to be arranged at air outlet is in rectangle；
5, at volute tongue, point B, B form warp surface, and projection weight of the point C and C ' on spiral case front shroud between ', C, C '
It closes, and point C and C ' is identical at a distance from the front/rear end away from blower respectively, so that the wind velocity that goes out at volute tongue is consistent, reduction
Due to front and back go out wind velocity it is inconsistent caused by wind loss；And the diameter at volute tongue is by the diameter R1 gradually transition of circular arc line BC
Diameter R2, R1 to arc section B ' C ' are less than R2, and the ratio between the two is 0.29-0.78；
6, on spiral case back shroud, the first back plate of lower part is towards top rake, in this way when spiral case component is used for side-suction type oil smoke
When machine, the first back plate is parallel with case back plate, so that the rear mainboard of spiral case back shroud turns forward, rear mainboard and cabinet is caused to be carried on the back
Gap between plate increases, and increases the rear intake of spiral case component to a certain extent；
7, the first back plate is vertical with the upper surface of spiral case connecting plate, ensures in this way when spiral case component is for side-suction type oil smoke
Machine, and when the first back plate is parallel with case back plate, the spiral case connecting plate at air outlet can be parallel with cabinet top plate, so as to spiral case
Connecting plate is fixed with cabinet top plate.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solutions of the utility model, and constitutes part of specification,
It is used to explain the technical solution of the utility model together with embodiments herein, not constitute to technical solutions of the utility model
Limitation.
Fig. 1 is the structural schematic diagram of the kitchen ventilator according to the present embodiment；
Fig. 2 is the schematic diagram of internal structure of kitchen ventilator shown in Fig. 1；
Fig. 3 is the schematic perspective view of the spiral case component of kitchen ventilator shown in Fig. 1；
Fig. 4 is another schematic perspective view of spiral case component shown in Fig. 3；
Fig. 5 is the schematic view of the front view of spiral case component shown in Fig. 3；
Fig. 6 is the side structure schematic view of spiral case component shown in Fig. 3；
Fig. 7 is the decomposition texture schematic diagram of spiral case component shown in Fig. 3；
Fig. 8 is the structural schematic diagram of the spiral case ring wall of spiral case component shown in Fig. 3；
Fig. 9 is the schematic view of the front view of spiral case ring wall shown in Fig. 8；
Figure 10 is the structural schematic diagram of the spiral case back shroud of spiral case component shown in Fig. 3.
Wherein, the relationship in Fig. 1-Figure 10 between appended drawing reference and component names are as follows:
100 spiral case components, 1 spiral case front shroud, mainboard before 10,11 first foreboards, 12 advance air ports, 2 spiral case back shrouds, 20
Mainboard afterwards, 21 first back plates, 22 second back plates, 23 rear air inlets, 3 spiral case ring walls, 4 spiral case connecting plates, 40 upper faces, 6 cabinets
Backboard, 7 cabinet top plates, 8 outlet housings, 9 blowers.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this
The embodiment of utility model is described in detail.
As shown in Fig. 1-Figure 10, the embodiments of the present invention provide a kind of spiral case component 100 of kitchen ventilator, the spiral case
Component 100 can be applied to side-suction type range hood, top suction type kitchen ventilator or European-style range hood.
As shown in Fig. 3-Fig. 7, which includes spiral case front shroud 1, spiral case back shroud 2 and spiral case ring wall 3, snail
The front and rear sides of girdle wall 3 are connect with spiral case front shroud 1 and spiral case back shroud 2 respectively, form spiral case.As shown in figure 9, spiral case ring
The edge wheel profile of the front side of wall 3 include successively rounding off connection straight line AB, circular arc line BC, circular arc line CD, circular arc line DE,
Circular arc line EF, circular arc line FG, straight line GH, the edge wheel profile of the rear side of spiral case ring wall 3 include the straight of successively rounding off connection
Line A ' B ', circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ', straight line G ' H '.
Wherein, the edge wheel profile of the front side of the edge wheel profile and spiral case ring wall 3 of the rear side of spiral case ring wall 3 is before spiral case
Projection on cover board 1 is not exclusively overlapped, i.e. projection and spiral case of the edge wheel profile of spiral case back shroud 2 on spiral case front shroud 1
The edge wheel profile of front shroud 1 is not exclusively overlapped.The front side of the edge wheel profile and spiral case ring wall 3 of the rear side of spiral case ring wall 3
The projection a part of edge wheel profile on spiral case front shroud 1 is overlapped, and a part is not overlapped.Specifically, circular arc line C ' D ', circular arc
Line D ' E ', circular arc line E ' F ', circular arc line F ' G ' projection and circular arc line CD on spiral case front shroud 1, circular arc line DE, circular arc line
The projection of EF, circular arc line FG on spiral case front shroud 1 is respectively superposed, and circular arc line BC, circular arc line CD, circular arc line DE, circular arc line
EF, circular arc line FG diameter be sequentially increased, circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line
The diameter of F ' G ' is sequentially increased.
Optionally, circular arc line BC can be the circular arc line that diameter is 20mm, central angle is 119 ° -125 °, and circular arc line CD can
To be circular arc line that diameter is 44 ° -50 ° for 227mm, central angle, circular arc line DE can be that diameter is 312mm, central angle is
66 ° -72 ° of circular arc line, circular arc line EF can be the circular arc line that diameter is 363mm, central angle is 107 ° -113 °, circular arc line FG
It can be the circular arc line that diameter is 414mm, central angle is 68 ° -74 °.
Specifically, in one embodiment, circular arc line BC can be the circular arc line that diameter is 20mm, central angle is 122 °, circle
Camber line CD can be the circular arc line that diameter is 227mm, central angle is 47 °, and it is 312mm, central angle that circular arc line DE, which can be diameter,
For 69 ° of circular arc line, circular arc line EF can be the circular arc line that diameter is 363mm, central angle is 110 °, and circular arc line FG can be directly
The circular arc line that diameter is 414mm, central angle is 71 °.
On the edge wheel profile of the front side of spiral case ring wall 3, rounding off between each straightway and arc section be can avoid in snail
Occur sharp tie point on girdle wall 3, and then influence flowing of the oil smoke in spiral case, so that oil smoke turbulent flow is occurred, influence to enter the wind
Amount increases the noise etc. of kitchen ventilator work.Due to circular arc line BC, circular arc line CD, circular arc line DE, circular arc line EF, circular arc line FG
Diameter is sequentially increased, circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ' diameter successively
Increase, so that in spiral case component 100,9 eccentric setting of blower (i.e. the center O biasing of blower 9), and as shown in figure 8, along oil
The flow direction (direction indicated by arrow in Fig. 8) of cigarette, the ventilation-sectional area in spiral case component 100 are gradually increased, are conducive to
Improve the intake of spiral case component 100.
Further, warp surface is formed between ', G, G ' as shown in figure 9, point H, H on spiral case ring wall 3, on spiral case ring wall 3
Point A, A form warp surface between ', B, B ', and point A, A on spiral case ring wall 3 ', H, H ' in the same plane, point A, A ', H,
H ' forms rectangle after being connected.
Point A, A ', H, H ' are connected to form air outlet, point A, A ', H, H ' be connected after form rectangle so that air outlet is in rectangle.
As shown in Figure 6 and Figure 7, which further includes spiral case connecting plate 4, the surrounding of spiral case connecting plate 4 respectively with spiral case front cover
Plate 1, spiral case back shroud 2 are connected with the upper end of spiral case ring wall 3.
As shown in fig. 6, spiral case component 100 vertically place when, spiral case front shroud 1 is generally in vertical state, point A, A ', H,
With respect to the horizontal plane (the spiral case front shroud 1 with spiral case component 100 of spiral case connecting plate 4 at the air outlet and air outlet that H ' is formed
Preceding mainboard 10 it is vertical) there is certain inclination angle therefore to increase the air-out area of air outlet, be conducive to improve kitchen ventilator
The efficiency of mist extractor.
Further, as shown in Figure 8 and Figure 9, point B, B ', C, C ' between the warp surface that is formed, which forms spiral case ring
The volute tongue of wall 3, the radius of the circular arc line B ' C ' of volute tongue are R1, and the radius of circular arc line BC is R2, and the ratio of R1 and R2 is 0.29-
0.78。
Optionally, R1 can be 4mm-7mm, and R2 can be 9mm-14mm.
At volute tongue, the radius of warp surface is gradually reduced from front to back, to realize the smooth transition at volute tongue.Point C and C ' exist
Projection on spiral case front shroud 1 is overlapped, and identical at a distance from front/rear end of the point C and C ' respectively away from blower 9 (i.e. point C is away from blower 9
Front end face distance it is identical at a distance from rear end face of the point C ' away from blower 9), so that at volute tongue go out wind velocity be consistent,
Reduce due to front and back go out wind velocity it is inconsistent caused by wind loss.
Further, as shown in figure 9, the angle between straight line AB and straight line LM can be 65 ° -75 °, straight line A ' B ' and straight line LM
Between angle can be 30 ° -40 °, angle between straight line GH and straight line LM can be 65 ° -75 °, straight line G ' H ' and straight line LM it
Between angle can be 60 ° -70 °；Wherein, straight line LM crosses the center of blower 9 and was parallel to the straight line of point A, H.
Further, it crosses the center O of blower 9 and was parallel to the straight line LM of the straight line of point A, H and the left and right two of spiral case ring wall 3
The intersection point at end is respectively L, M, and the length ratio of OM and OL are 1:1.2 ~ 1:1.4,
Cross the center O of blower and be parallel to point A, A ' straight line straight line NP and spiral case ring wall 3 upper and lower ends friendship
Point is respectively N, P, and the length ratio of ON and OP are 1:1.2 ~ 1:1.4.
Point M and N away from a distance from the O of center compared with point L and P away from close at a distance from the O of center, therefore, OM and ON are referred to alternatively as nearly shell section,
OL and OP are referred to alternatively as remote shell section.
Specifically, in one embodiment, the length of OM can be 160.2mm, and the length of OL can be 212.7mm, OM and OL
Length ratio is about 1:1.33, and the length of ON can be 133.9mm, the length of OP can for 186.4mm, ON and OP length ratio about
For 1:1.39.
In conjunction with Fig. 8 and Fig. 9 it is found that in spiral case component 100, blower eccentric setting, i.e. the center O of blower are biased to right side and are set
It sets, and along the flow direction of oil smoke (as shown by the arrows in Figure 8), the ventilation-sectional area in spiral case component 100 is gradually increased, and is had
Conducive to the intake for improving spiral case component 100.
Optionally, it as shown in fig. 7, being provided with circular advance air port 12 on spiral case front shroud 1, is provided on spiral case back shroud 2
Circular rear air inlet 23, and the circle of the center of circle of rear air inlet 23 projected position on spiral case front shroud 1 and advance air port 12
Projected position of the heart on spiral case front shroud 1 is overlapped.It is of course also possible to an air inlet only be arranged on spiral case component 100, such as
Advance air port 12 can be only set on spiral case front shroud 1.
Optionally, as shown in Figure 5 and Figure 6, spiral case front shroud 1 include preceding mainboard 10 and above preceding mainboard 10 first
Foreboard 11, as shown in Fig. 4, Fig. 6 and Figure 10, spiral case back shroud 2 include rear mainboard 20 and above rear mainboard 20 second after
Plate 22.And as shown in fig. 6, preceding mainboard 10 is parallel with rear mainboard 20, the first foreboard 11 is parallel with the second back plate 22, the first foreboard 11
Top tilt backwards, and the angle between the first foreboard 11 and spiral case connecting plate 4 be 85 ° -95 °, the top of the second back plate 22
Also it tilts backwards, and the angle between the second back plate 22 and spiral case connecting plate 4 and between the first foreboard 11 and spiral case connecting plate 4
Angle is equal, is also 85 ° -95 °, so that after the second of 2 top of the first foreboard 11 and spiral case back shroud on 1 top of spiral case front shroud
Plate 22 is both substantially perpendicular to spiral case connecting plate 4, and therefore, the first foreboard 11 and the second back plate 22 can form air outlet section.
Further, as shown in Figure 4 and Figure 6, the intersecting lens II ' between the second back plate 22 and rear mainboard 20 and spiral case connecting plate
The distance between 4 upper face 40 is 10mm-20mm, as shown in Figure 5 and Figure 6, the phase between the first foreboard 11 and preceding mainboard 10
The distance between upper face 40 of intersection KK ' and spiral case connecting plate 4 is 10mm-20mm.
The setting of first foreboard 11 and the second the two air outlet sections of back plate 22, it can be ensured that spiral case connecting plate 4 can close
It is assemblied on entire spiral case component 100 to reason, while being convenient for from 2 top of spiral case ring wall 3, spiral case front shroud 1 and spiral case back shroud
Air outlet discharge oil smoke can pass through spiral case connecting plate 4, and finally from outlet housing 8 be discharged.
Optionally, the angle between rear mainboard 20 and the second back plate 22 can be 150 ° -165 °.
To make spiral case component 100 be more suitable for side-suction type range hood, meet spiral case component 100 in the machine of side-suction type range hood
Installation in case has carried out Curve guide impeller to the structure of spiral case back shroud 2.Specifically, as shown in Fig. 4, Fig. 6, Fig. 7 and Figure 10,
Spiral case back shroud 2 further includes the first back plate 21 positioned at rear 20 lower section of mainboard, and the first back plate 21 is lower part inclining towards top rake
Inclined plate.Wherein, the angle between rear mainboard 20 and the first back plate 21 can be 150 ° -165 °.
On spiral case back shroud 2, the first back plate 21 of lower part is towards top rake, in this way when spiral case component 100 is used for side-suction type
Kitchen ventilator and when being mounted in cabinet, as shown in Figure 1, the first back plate 21 is parallel with case back plate 6, so that spiral case back shroud 2
Mainboard 20 turns forward afterwards, causes the gap between rear mainboard 20 and case back plate 6 to increase, increases spiral case group to a certain extent
The rear intake of part 100.
Further, the first back plate 21 and the upper face 40 of spiral case connecting plate 4 can be mutually perpendicular to, and be ensured in this way when spiral case component
100 are used for side-suction type range hood, and when the first back plate 21 is parallel with case back plate 6, as shown in Figure 1, the spiral case at air outlet connects
Fishplate bar 4 can be parallel with cabinet top plate 7, so that spiral case connecting plate 4 and cabinet top plate 7 are fixed.
Optionally, the distance between spiral case front shroud 1 and spiral case back shroud 2 change with the change width of spiral case ring wall 3.
Wherein, since 2 lower part of spiral case back shroud is equipped with the second back plate 22, so the distance between spiral case front shroud 1 and spiral case back shroud 2
Nearest position is at minimum point JJ ', as shown in Figure 6.
The utility model embodiment carries out corresponding Optimal improvements by the spiral case component to kitchen ventilator, by rationally setting
Shape and the size, spiral case front shroud and the shape of spiral case back shroud etc. for counting the edge wheel profile of the front and back side of spiral case ring wall, make
The intake for obtaining spiral case component increases.Test proves that the intake of spiral case component is by 14m3/ min increases to 16m3/ min, air inlet
Amount increases by about 2 m3/ min improves the effect of the mist extractor of kitchen ventilator.
Embodiment described above only expresses the illustrative embodiment of the utility model, description it is more specific and
In detail, but the content only the utility model and the embodiment that uses for ease of understanding, it is practical new to be not limited to this
Type.Technical staff in any the utility model fields is not departing from spirit and scope disclosed by the utility model
Under the premise of, any modification and variation, but the patent protection model of the utility model can be carried out in the form and details of implementation
It encloses, the appended claims that must still be subject to is defined.
Claims (10)
1. a kind of spiral case component of kitchen ventilator, including spiral case front shroud, spiral case back shroud and spiral case ring wall, the spiral case ring wall
Front and rear sides are connect with the spiral case front shroud and the spiral case back shroud respectively, which is characterized in that before the spiral case ring wall
The edge wheel profile of side includes straight line AB, the circular arc line BC, circular arc line CD, circular arc line DE, circular arc line of successively rounding off connection
EF, circular arc line FG, straight line GH, the edge wheel profile of the rear side of the spiral case ring wall include the straight line A ' of successively rounding off connection
B ', circular arc line B ' C ', circular arc line C ' D ', circular arc line D ' E ', circular arc line E ' F ', circular arc line F ' G ', straight line G ' H ', and the circular arc
Line C ' D ', the circular arc line D ' E ', the circular arc line E ' F ', projection of the circular arc line F ' G ' on the spiral case front shroud with
The projection of the circular arc line CD, the circular arc line DE, the circular arc line EF, the circular arc line FG on the spiral case front shroud point
It is not overlapped, the diameter of the circular arc line BC, the circular arc line CD, the circular arc line DE, the circular arc line EF, the circular arc line FG
It is sequentially increased, the circular arc line B ' C ', the circular arc line C ' D ', the circular arc line D ' E ', the circular arc line E ' F ', the circular arc
The diameter of line F ' G ' is sequentially increased.
2. the spiral case component of kitchen ventilator according to claim 1, which is characterized in that point H, H on the spiral case ring wall ',
G, warp surface, point A, A on the spiral case ring wall are formed between G ' between ', B, B ' forms warp surface；On the spiral case ring wall
Point A, A ', H, H ' in the same plane, and point A, A ', H, H ' be connected after form rectangle.
3. the spiral case component of kitchen ventilator according to claim 2, which is characterized in that between the straight line AB and straight line LM
Angle is 65 ° -75 °, and angle between the straight line A ' B ' and the straight line LM is 30 ° -40 °, the straight line GH and it is described directly
Angle between line LM is 65 ° -75 °, and the angle between the straight line G ' H ' and the straight line LM is 60 ° -70 °,
Wherein, the straight line LM crosses the center of blower and was parallel to the straight line of point A, H.
4. the spiral case component of kitchen ventilator according to claim 2, which is characterized in that cross the center O of blower and be parallel to
The intersection point of the left and right ends of the straight line of the straight line of point A, H and the spiral case ring wall is respectively L, M, and the length ratio of OM and OL are 1:
1.2 ~ 1:1.4 crosses the center O of blower and was parallel to point A, A ' straight line straight line and the spiral case ring wall upper and lower ends
Intersection point is respectively N, P, and the length ratio of ON and OP are 1:1.2 ~ 1:1.4.
5. the spiral case component of kitchen ventilator according to claim 1, which is characterized in that be formed with snail on the spiral case ring wall
Tongue, the volute tongue are the warp surface formed between point B, B ', C, C ', and the radius of the circular arc line B ' C ' is R1, the circular arc line
The radius of BC is R2, and the ratio of R1 and R2 is 0.29-0.78.
6. the spiral case component of kitchen ventilator according to claim 5, which is characterized in that R1 4mm-7mm, R2 9mm-
14mm。
7. the spiral case component of kitchen ventilator according to claim 1, which is characterized in that the circular arc line BC is that diameter is
20mm, the circular arc line that central angle is 119 ° -125 °, the circular arc line CD is the circle that diameter is 227mm, central angle is 44 ° -50 °
Camber line, the circular arc line DE are the circular arc lines that diameter is 312mm, central angle is 66 ° -72 °, and the circular arc line EF is that diameter is
363mm, the circular arc line that central angle is 107 ° -113 °, the circular arc line FG is the circle that diameter is 414mm, central angle is 68 ° -74 °
Camber line.
8. the spiral case component of kitchen ventilator described in any one of -7 according to claim 1, which is characterized in that the spiral case back shroud
The first back plate including rear mainboard and below the rear mainboard, first back plate are inclination of the lower part towards top rake
Plate.
9. the spiral case component of kitchen ventilator according to claim 8, which is characterized in that mainboard and first back plate after described
Between angle be 150 ° -165 °.
10. the spiral case component of kitchen ventilator according to claim 8, which is characterized in that further include spiral case connecting plate, the snail
The surrounding of shell connecting plate is connect with the upper end of the spiral case front shroud, the spiral case back shroud and the spiral case ring wall respectively；Institute
It is vertical with the upper surface of the spiral case connecting plate to state the first back plate.
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| CN201821004733.2U CN208605401U (en) | 2018-06-28 | 2018-06-28 | A kind of spiral case component of kitchen ventilator |
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| CN201821004733.2U CN208605401U (en) | 2018-06-28 | 2018-06-28 | A kind of spiral case component of kitchen ventilator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228399A (en) * | 2019-12-13 | 2021-01-15 | 绍兴阿利卡电器有限公司 | Large-air-pressure volute used in range hood and integrated stove |
| CN113513501A (en) * | 2021-04-02 | 2021-10-19 | 宁波方太厨具有限公司 | Volute for range hood, fan system and range hood |
-
2018
- 2018-06-28 CN CN201821004733.2U patent/CN208605401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228399A (en) * | 2019-12-13 | 2021-01-15 | 绍兴阿利卡电器有限公司 | Large-air-pressure volute used in range hood and integrated stove |
| CN113513501A (en) * | 2021-04-02 | 2021-10-19 | 宁波方太厨具有限公司 | Volute for range hood, fan system and range hood |
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Effective date of registration: 20230616 Address after: Building 2, No. 52, 22nd Street, Baiyang Street, Qiantang New District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Hangzhou Jiuchuang Home Appliances Co.,Ltd. Address before: No. 999, Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee before: JOYOUNG Co.,Ltd. |