CN109645848A - Cooking appliance - Google Patents
Cooking appliance Download PDFInfo
- Publication number
- CN109645848A CN109645848A CN201910152231.7A CN201910152231A CN109645848A CN 109645848 A CN109645848 A CN 109645848A CN 201910152231 A CN201910152231 A CN 201910152231A CN 109645848 A CN109645848 A CN 109645848A
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- CN
- China
- Prior art keywords
- plenum area
- guide vane
- distance
- wind wheel
- bells cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses a kind of cooking appliances, the cooking appliance includes: body and wind wheel, body is equipped with air bells cap, has the first plenum area and the second plenum area on air bells cap, and multiple guide vanes of the circumferentially-spaced arrangement along the first plenum area are equipped with around the first plenum area；It is opposite before and after wind wheel and the first plenum area, wherein, guide vane has the outer end far from the first plenum area and the inner end close to the first plenum area, multiple guide vanes are divided into the first guide vane and the second guide vane, the difference of the distance L11 and the rotary shaft distance L12 of the inner end of the first guide vane to wind wheel of the rotary shaft of the outer end of the first guide vane to wind wheel be greater than the outer end of the second guide vane to wind wheel rotary shaft distance L21 and the rotary shaft distance L22 of the inner end of the second guide vane to wind wheel difference.Cooking appliance according to an embodiment of the present invention, by increasing guide vane structure different in size on air bells cap, it can be achieved that enhancing air-flow carries out the effect of water conservancy diversion.
Description
Technical field
Technical field is scorched the present invention relates to micro-, in particular to a kind of cooking appliance.
Background technique
It is scorched in technical field micro-, the uniformity of hot wind function is one of the index of cooking performance most critical, is changed at present
The technical way of the uniformity of kind hot wind function be the planform for optimizing air bells cap, the quantity of air bells cap exhaust vent and
Position.Above-mentioned technological means is mainly the wind direction and air quantity for being expected that by the outlet air for adjusting air bells cap exhaust vent, to adjust
Different location receives the heat of hot wind transmitting on section baking tray or grill, achievees the purpose that improve uniformity in cavity.
Summary of the invention
The invention reside in a kind of cooking appliance is proposed, the present invention on air bells cap by increasing guide vane knot different in size
Structure is, it can be achieved that enhancing air-flow carries out the effect of water conservancy diversion.
Cooking appliance according to an embodiment of the present invention, the cooking appliance include: body and wind wheel, are had in the body
Cooking cavity is covered with air bells cap on the rear wall of the cooking cavity, has the first plenum area and the second ventilation on the air bells cap
Area, first plenum area and second plenum area are equipped with ventilation hole, and are equipped with around first plenum area along institute
State multiple guide vanes of the circumferentially-spaced arrangement of the first plenum area；It is opposite before and after the wind wheel and first plenum area, wherein institute
Stating guide vane has the outer end far from first plenum area and the inner end close to first plenum area, and the multiple guide vane is divided
For the first guide vane and the second guide vane, the distance L11 and described first of rotary shaft of the outer end of first guide vane to the wind wheel
The difference of distance L12 of rotary shaft of the inner end of guide vane to the wind wheel is greater than the outer end of second guide vane to the wind wheel
The difference of the distance L21 of rotary shaft and the rotary shaft distance L22 of the inner end of second guide vane to wind wheel.
Cooking appliance according to an embodiment of the present invention can be real by increasing guide vane structure different in size on air bells cap
Now enhancing air-flow carries out the effect of water conservancy diversion.
In addition, cooking appliance according to the above embodiment of the present invention, can also have the following additional technical features:
In some embodiments, the distance L11 is equal with the distance L21, and the distance L22 is in the distance L11
Between the distance L12.
In some embodiments, first guide vane include around first plenum area direction on be intervally arranged it is more
It is a, and at least one described second guide vane is equipped between at least two the first adjacent guide vanes.
In some embodiments, difference between the distance L21 and the distance L22 and the distance L11 and it is described away from
Ratio from the difference between L12 is 1/2.
In some embodiments, the guide vane extends on the direction far from first plenum area along camber line, multiple described
Guide vane extension trend having the same and extending direction on the direction far from first plenum area.
In some embodiments, multiple guide vanes are arranged in the left and right sides of first plenum area.
In some embodiments, the die mould item extended in left-right direction is equipped at the top and bottom of the air bells cap, it is described
First plenum area is located between the die mould item of the top and bottom of the air bells cap, and the lower edges of first plenum area are adjacent
The nearly corresponding die mould item, and first ventilation is extended in the left and right ends of the die mould item described in downward projection
Area.
In some embodiments, first plenum area is set to the middle position in left-right direction of the air bells cap, and institute
It states and is equipped with second ventilation at least one in left upper portion, left lower, right upper portion and the lower right side of air bells cap
Area.
In some embodiments, first plenum area, which is intervally arranged, multiple ventilation holes, multiple ventilation hole cloth
It is set to round matrix form.
In some embodiments, first plenum area is arranged to the heavy platform knot relative to the surface indentation of the air bells cap
Structure.
Detailed description of the invention
Fig. 1 is the schematic diagram of the air bells cap of the cooking appliance of one embodiment of the invention.
Fig. 2 is the air bells cap of the cooking appliance of one embodiment of the invention and the schematic diagram of wind wheel cooperation.
Fig. 3 is the schematic diagram of diffusion degree.
Appended drawing reference: air bells cap 1, the first plenum area 101, the second plenum area 102, guide vane 12, the first guide vane 121, second
Guide vane 122, diffusion degree θ, die mould item 13, the distance L11 of the rotary shaft of the outer end of the first guide vane 121 to wind wheel, the second guide vane 122
Outer end to wind wheel rotary shaft distance L21, the distance L22 of the rotary shaft of the inner end of the second guide vane 122 to wind wheel, first leads
The inner end of leaf 121 to wind wheel rotary shaft distance L12, wind wheel 2.
Specific embodiment
Technical field of electric appliances is scorched the invention belongs to micro-, is related to all scorching electric appliance with the micro- of hot wind function.Hot wind function
The uniformity of energy is one of the index of cooking performance most critical, and the technical way for improving the uniformity of hot wind function at present is
Optimize planform, the quantity and position of air bells cap exhaust vent of air bells cap.Above-mentioned technological means mainly it is expected logical
The wind direction and air quantity of the outlet air of air bells cap exhaust vent are overregulated, so that adjusting different location on baking tray or grill receives hot wind biography
The heat passed achievees the purpose that improve uniformity in cavity.Present invention employs setting guide vanes 12 to improve uniformity to realize
Purpose.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Such as Fig. 1, cooking appliance according to an embodiment of the present invention, cooking appliance of the invention can be micro- electric appliance, roasting scorched
Case, micro-wave oven etc., cooking appliance of the invention include body and wind wheel, are provided with cooking cavity in body, and be equipped in cooking cavity
Air bells cap and wind wheel are wherein provided with the first plenum area and the second plenum area, under the driving effect of wind wheel, air-flow on air bells cap
By the first plenum area and the second plenum area in air bells cap and circulation is carried out in cooking cavity.
Specifically, being equipped with cooking cavity (not shown) in body of the invention, it is covered on the rear wall of cooking cavity
Air bells cap has the first plenum area and the second plenum area on air bells cap, and the first plenum area and the second plenum area are equipped with ventilation hole,
Air-flow can be flowed between air bells cap inner space, cooking cavity by the ventilation hole of the first plenum area and the second plenum area
It is logical.
In the present invention, multiple guide vanes 12 are provided with around the first plenum area, guide vane 12 is set on air bells cap 1, and is led
Leaf 12 is upwardly extended along far from the side of the first plenum area 101, multiple guide vanes 12 along the first plenum area 101 circumferentially-spaced arrangement,
Leaf road can be formed between adjacent guide vane 12, air-flow can circulate under the guidance of guide vane 12.Optionally, multiple 12 cloth of guide vane
It is set to divergent shape.Optionally, multiple guide vanes 12 are arranged to the divergent shape centered on the shaft of wind wheel.
Optionally, air bells cap 1 be arranged to wind wheel (or fan, blower etc.) opposite form, can be by structures such as wind wheels
Opposite with the first plenum area 101, air-flow circulates under the driving effect of wind wheel, under the driving effect of the devices such as wind wheel, air-flow
It can circulate along guide vane 12, air-flow is drained by guide vane 12.
Cooking appliance according to an embodiment of the present invention can drain the air-flow of wind wheel etc. by the realization of guide vane 12,
Play the role of guiding air current flow direction by guide vane 12, is conducive to air-flow and is flowed along 12 track Ye Dao of guide vane, reduction is led
The flow losses for the Ye Daozhong that leaf 12 forms.
Wherein, ventilation hole can run through air bells cap 1, that is to say, that the ventilation hole that the first plenum area includes runs through air bells cap
1, the through-hole that the second plenum area includes runs through air bells cap 1, and optionally, air bells cap 1 is to erect to cover on the rear wall of cooking cavity,
The form including substrate and coaming plate can be set into air bells cap 1, wherein the edge of coaming plate connecting substrate, and coaming plate and substrate in batch
It closes and forms open cavity body structure backward, at this point, at least one of the first plenum area and the second plenum area can be set in base
On plate, in this way, ventilation hole can run through substrate along the direction perpendicular to substrate；In first plenum area and the second plenum area at least
One also can be set on coaming plate, and corresponding ventilation hole can run through substrate along the direction perpendicular to coaming plate.Certainly, these are retouched
It states and is only used for promoting the understanding of the present invention, be not construed as limiting the scope of the present invention.
In addition, for example, heating element can be set in the air bells cap in the present invention, under the driving effect of wind wheel,
First plenum area can be set into be flowed in cooking cavity out of air bells cap for air-flow, the second plenum area can be set into for air-flow from
It is flowed in air bells cap in cooking cavity, wherein air bells cap can cover on the rear surface of cooking cavity, after air bells cap and cooking cavity
Cavity is formed between wall surface, for placing heating element, and air-flow is entered in cavity and is exchanged heat with heating member
After flow in cooking cavity and cooked.
In the present invention, when multiple guide vanes 12 are arranged around the first plenum area, the diffusion degree in multiple 12 leaf roads of guide vane may
It is excessive, second half section (position far from the first plenum area) the diffusion degree increasing degree mistake in the leaf road especially formed between guide vane 12
Greatly, serious separation loss is easily led to, and then increases the energy loss of air-flow.On the other hand, diffusion, which is spent, will lead to out greatly
The slip coefficient of mouth is excessive, prevent air-flow is flowed out from the direction guided according to guide vane 12, so that weakening guide vane 12 guides gas
The effect of flowing.
Such as Fig. 1, in some embodiments of the invention, guide vane 12 has outer end and close first far from the first plenum area
The inner end of plenum area, multiple guide vanes 12 are divided into the first guide vane 121 and the second guide vane 122 (certainly, can be in multiple guide vanes 12
Include other forms, such as third guide vane etc.), the distance L11 and first of the rotary shaft of the outer end of the first guide vane 121 to wind wheel
The inner end of guide vane 121 to wind wheel rotary shaft distance L12 difference be L11-L12, wind wheel is arrived in the outer end of the second guide vane 122
The difference of the distance L21 of the rotary shaft and rotary shaft distance L22 of the inner end of the second guide vane 122 to wind wheel is L21-L22,
In, L11-L12 is greater than L21-L22, that is to say, that multiple guide vanes 12 are arranged to form different in size.
Since guide vane 12 is configured along around the direction of the first plenum area, the gap of guide vane 12 is close to the
The position of one plenum area is smaller, and the gap of the position guide vane 12 far from the first plenum area is larger, therefore, can be grown by setting
Short different guide vane 12 reduces the purpose in gap between guide vane 12 to realize.
Wherein, the outer end of the first guide vane 121 is one end on the first guide vane 121 far from the first plenum area, the first guide vane 121
Inner end be on the first guide vane 121 close to the first plenum area one end；The outer end of second guide vane 122 is remote on the second guide vane 122
One end from the first plenum area, the inner end of the second guide vane 122 are one end on the second guide vane 122 close to the first plenum area.
In addition, the different guide vane 12 of length, which is arranged, may be implemented to reduce diffusion degree, the reduction of diffusion degree is conducive to inhibit leaf
The generation of flow separation in road is conducive to air-flow and flows along 12 track Ye Dao of guide vane, so as to reduce the flowing damage of Ye Daozhong
It loses, enhance leaf road to the guide functions of air-flow.
Different multiple of length are provided with specifically, relative to the identical structure of multiple 12 length of guide vane, in the present invention
Guide vane 12, it is thus possible to increase 12 structure of guide vane (quantity of guide vane 12 in other words), can reduce the sudden expansion damage of wind wheel exit flow
Lose (one kind that sudden expansion loss is flow losses)；Optionally, short blade is added between two linear leafs, it is later half that leaf road can be reduced
The diffusion degree of section, the reduction of diffusion degree are conducive to inhibit the generation of Ye Daozhong flow separation, are conducive to air-flow along 12 leaf of guide vane
Road track flowing, so as to reduce the flow losses of Ye Daozhong, enhance leaf road to the guide functions of air-flow.
About diffusion degree as shown in figure 3, angular therein is diffusion degree, in addition, as shown in Figure 1, with the wind wheel
Rotary shaft centered on draw circle, will form two sections of circular arcs, the midpoint institute of this both ends circular arc between three adjacent guide vanes 12
Corresponding central angle is diffusion degree θ.
As an example, ten linear leafs (i.e. the first guide vane 121) and ten are separately included in an embodiment of the present invention
A short blade (i.e. the second guide vane 122), certainly, protection scope of the presently claimed invention is not limited only to this, similarly can also be with
Other same or different number linear leaf and short blade are set.
Optionally, distance L11 is equal with distance L21, and distance L22 is between distance L11 and distance L12.It may be implemented
Uniform guidance to air-flow, moreover, because the essential structure of diverging shape, result in the long guide vane 12 far from the first plenum area it
Between spacing increase, therefore, between long guide vane 12 far from the first plenum area position be arranged short-range missile leaf 12, can effectively reduce
Diffusion degree, to effectively further reduce the flow losses in leaf road.
Certainly, different form also can be set into distance L11 in the present invention and distance L21.
Optionally, the first guide vane 121 include be intervally arranged on the direction around the first plenum area 101 it is multiple, and extremely
At least one second guide vane 122 is equipped between few two adjacent first guide vanes 121.For example, in two adjacent the first guide vanes
One the second guide vane 122 is set between 121；Or it is arranged more than two second between two adjacent the first guide vanes 121
Guide vane 122.Wherein it is possible to it is respectively provided with the second guide vane 122 between every two adjacent the first guide vanes 121, it can also be multiple
The second guide vane 122 is arranged at least part in the multiple gaps formed between first guide vane 121.
Preferably, second guide vane 122 is equipped between every two adjacent the first guide vanes 121；Or per adjacent
First guide vane 121 is equipped between two the second guide vanes 122.In other words, the first guide vane 121 and the second guide vane 122 interlock
Arrangement.In addition, equally also can be set multiple second between two adjacent the first guide vanes 121 (or second guide vane 122) and lead
Leaf 122 (or first guide vane 121).
In addition, can also equally be equipped at least one first guide vane between at least two the second adjacent guide vanes 122
121。
Optionally, the ratio of the difference between the difference between distance L21 and distance L22 and distance L11 and distance L12 is
1/2.That isIn conjunction with previous embodiment it is found that L21 is identical as L11, therefore
Certainly, above-mentioned ratio may be other values not equal to 1/2, for example,It is set greater than 1/2 or is less than
1/2 form, optionally,It is set as 0.1,0.3,0.8 etc..
Short blade is added in technical solution of the present invention between two linear leafs, specific structure size marking as shown in Figure 1,
The outlet diameter L21 of short blade and the outlet diameter L11 of linear leaf are equal, and the inlet diameter L22 of short blade is equal to linear leaf
Inlet diameter L12 and outlet diameter L11's and 1/2 (i.e. L22=(L12+L11)/2),
Optionally, multiple guide vanes 12 extension trend having the same and extension on the direction far from the first plenum area 101
Direction.That is, inclined direction substantially phase of multiple guide vanes 12 during the direction far from the first plenum area 101 extends
Together.Or say, multiple guide vanes 12 tilt along clockwise direction during the direction far from the first plenum area 101 extends
Extend, inclination extends in the counterclockwise direction, first inclination along clockwise direction extends again inclination in the counterclockwise direction and extends, first along inverse
Clockwise inclination extends in inclination extension along clockwise direction etc..Certainly, here to the specific extension extension side of guide vane 12
To being intended to describe the specific embodiment of the present invention, while as the explanation to trend and extending direction is extended, not making
For limiting the scope of the invention.In addition, since the first guide vane and the second guide vane are different in size, the first guide vane and
The extension trend and direction of second guide vane may not be identical, it should be appreciated that the first guide vane and the second guide vane are along wind
Take turns the opposite part extension trend and direction having the same of the circumferencial direction of rotary shaft.
In addition, multiple guide vanes extension trend having the same and extending direction, it is also understood that are as follows: it is with wind wheel rotary shaft
Circumference is drawn at center, which intersects with multiple guide vanes, and the tangent line of intersection point is relative to the intersection point and wind wheel rotary shaft on guide vane
Line is tilted by a predetermined angle towards predetermined direction, and in multiple guide vanes, the predetermined angular is roughly the same (for example, difference is at 0 ° to 30 °
In the range of).
Optionally, guide vane 12 is arc form.Specifically, guide vane 12 extends in the direction far from the first plenum area 101
During for circular shape (in other words along circular arc line extend).Long and short 12 blade profile of guide vane is all made of single arc form, convenient for adding
Work manufacture.12 structure of guide vane can be added by way of welding or sheet metal component casting.
Certainly, guide vane 12 similarly can be for along the extension of the directions such as elliptic arc, straight line, spline curve, wave, broken line.
These should be within the scope of the present invention.That is, guide vane is on the direction far from the first plenum area along camber line, straight
Line, broken line etc. extend.
In addition, in actual use, it can be by multiple guide vanes 12 along the circumferential uniformly row of the first plenum area 101
Cloth, that is to say, that guide vane 12 is respectively provided in four sides of guide vane 12, to be formed around the more of the first plenum area 101 setting
The road Ge Ye.This setup has some defects case and arranges 12 structure of guide vane in the surrounding of wind wheel, in vertical side
It is substantially increased the size of air bells cap upwards, and then it is more to cause the size of the vertical direction of cavity or even complete machine to increase,
To increase the cost of product；On the other hand, cavity size increase will lead to cavity volume increase, so that prior art
It is only applicable to the product of big volume chamber, i.e. prior art is limited in terms of use scope.
Optionally, in the present invention, the opposite sides that multiple guide vanes 12 are arranged in the first plenum area 101 (referring to Fig.1 or is schemed
The left and right sides in 2).That is, the first plenum area 101 opposite sides be provided with multiple guide vanes 12 above-mentioned, and
The other two sides of first plenum area 101 are not provided with guide vane 12 above-mentioned.12 the space occupied of guide vane can be reduced in this way, thus
Reduce the size of air bells cap 1.
Optionally, (in other words, the two sides up and down of the first plenum area are not set for the left and right sides of guide vane arrangement and the first plenum area
Set guide vane).
For being vertically arranged by air bells cap 1 and being extended in left-right direction, at this point it is possible on a left side for the first plenum area 101
Guide vane 12 above-mentioned is arranged in right two sides, and is not provided with guide vane 12 above-mentioned in the two sides up and down of the first plenum area 101, in this way, the
The size along the vertical direction of one plenum area 101 will be limited no longer by guide vane 12, moreover, because air bells cap 1 is in left-right direction
Extend, the left and right sides of the first plenum area 101 has sufficiently large space also to place guide vane 12 above-mentioned.Therefore, this to set
The mode of setting can effectively increase the size of the first plenum area 101, and for the size of air bells cap 1 substantially without influence.
Specific in oven, by above-mentioned set-up mode, guide vane 12 is all arranged in the four sides relative to the first plenum area 101
Scheme for, the area of the first plenum area 101 in the above embodiment of the present invention can be set it is sufficiently large, to improve to roasting
The air-flow of the equipment such as case guides effect.
Optionally, such as Fig. 1, the first plenum area 101 is intervally arranged and has multiple ventilation holes.That is, by the first plenum area
101 are arranged to grid, and the forms such as sieve-like, air-flow can be from the first uniformly circulation of plenum area 101, moreover, air-flow is passing through first
When multiple ventilation holes of plenum area 101, the interaction between air-flow can reduce the noise in the gas process of circulation, but also
Can air-flow more steadily be exchanged heat with surrounding enviroment, effectively improve heat exchange efficiency, pass through the ventilation
When the outside delivery air in hole, influence of the hot-air to surrounding enviroment in cooking cavity can be effectively avoided.
Specifically, multiple ventilation holes setting of the first plenum area is arranged in the matrix form in the present invention, for example, by using cross
The matrix form of tandem cloth.Optionally, such as Fig. 1, multiple ventilation holes of the first plenum area are arranged to round rectangular in the present invention
Formula.That is, multiple ventilation holes of the first plenum area are arranged to multiple concentric loops centered on the first plenum area, and it is each
Multiple ventilation holes are arranged on annulus.Certainly, ventilation hole also can be set at the center of concentric loop.
Optionally, the first plenum area 101 is arranged to the heavy platform structure relative to the surface indentation of air bells cap 1.That is,
Groove structure is formd on air bells cap 1, the bottom wall of groove structure forms the first plenum area 101 above-mentioned, wherein the first ventilation
Area 101 can be set in the center of air bells cap 1, that is to say, that the first plenum area 101 and each edge of air bells cap 1 are equal
It is spaced apart.
It can be convenient the installation corresponding with wind wheel of air bells cap 1 in this way, moreover, heavy platform structure can effectively improve air bells cap
1 structural strength.
12 structure of guide vane can be increased in the present invention in air bells cap, which is located at the exit of wind wheel, can
Realize the effect that water conservancy diversion is carried out to wind wheel exit flow.
In an oven, 12 structure of guide vane in the present invention is located at the outlet port of wind wheel, and middle circle hole site is wind wheel
Position (is not drawn into wind wheel, show wind wheel in Fig. 2) in Fig. 1, in the multiple straight guide vanes 12 of the outlet peripheral disposition of wind wheel or diameter
To guide vane 12, so that the exit flow of wind wheel is radially flowed out along above-mentioned guide vane 12, play the role of guiding air current flow direction.
The present invention solves the defect that prior art can not be applied to low capacity cavity product, can be in any capacity chamber
The application present invention in the product of body.The present invention solves the problems, such as that prior art diversion effect is poor.
Technical solution of the present invention structure chart 1 is as shown in Figure 2.Technical solution of the present invention is arranged in the left and right outlet two sides of wind wheel
There is 12 structure of guide vane of deviated splitter vane form.The technical program does not arrange 12 structure of guide vane in the top and bottom of wind wheel, can subtract
Size requirement of small arrangement 12 structure of guide vane to air bells cap vertical direction, so that 12 structure of guide vane of the technical program can be applied to
In the oven product of random capacity.
In addition, being equipped with the die mould item 13 extended in left-right direction, die mould in the present invention, at the top and bottom of air bells cap
Item 13 can be formed as sunk structure, bulge-structure on air bells cap etc., for example, can be by a part recess (example of air bells cap
Such as pass through punching press mode), to form recess on the one side of air bells cap, and formed on the another side of air bells cap convex
It rises；In addition bulge-structure can also be set on air bells cap, for example, additionally by sides such as welding, bonding, buckle, screw connections
Formula connects die mould item 13 on the surface of air bells cap.
First plenum area is located between the die mould item 13 of the top and bottom of air bells cap.Since the first plenum area needs to be arranged
Ventilation hole, in the first plenum area, there may be a large amount of ventilation holes, by setting die mould item 13, can be improved corresponding on air bells cap
The structural strength of position effectively improves the stability and safety of air bells cap.
The neighbouring corresponding die mould item 13 of the lower edges of first plenum area further improves 13 pairs of increase knots of die mould item
The effect of structure intensity.And die mould item 13 means to end, it is meant that the end of the first plenum area, to effectively improve hot wind
The machine-shaping and assembly efficiency of cover.
Extend the first plenum area in the left and right ends of downward projection medium-pressure type item 13.That is, die mould item 13
The first plenum area is covered, the structural strength of air bells cap is effectively further improved.
Optionally, the first plenum area be set to air bells cap middle position in left-right direction, and the left upper portion of air bells cap,
In left lower, right upper portion and lower right side at least one at be equipped with the second plenum area.
Wherein, the second plenum area can effectively improve cooking efficiency for around the form of the first plenum area setting
And effect.
Cooking appliance according to the present invention, comprising: body and wind wheel 2.Air bells cap can be covered to cooking cavity in body
The back side on so that between air bells cap and the back side of cooking cavity formed heat gun chamber, by wind wheel realize air circulation, to make
Hot gas in air bells cap can enter in cooking cavity under the induced effect of air-flow and be cooked.
Optionally, wind wheel 2 can be with the first plenum area 101 face in the longitudinal direction.
Since 12 structure of guide vane of technical solution of the present invention is arranged in the left and right two of wind wheel (or referred to as Hot-air fan) outlet
12 structure of guide vane is not arranged in top side and bottom side in side, the size requirement on air bells cap vertical direction can be reduced, to be conducive to
The technical program is applied in low capacity oven.Since the speed of wind wheel exit flow is higher, if without guide vane, or
The diffusion degree in 12 leaf road of person's guide vane is larger, and will cause biggish sudden expansion loss so that flowed energy be caused to lose reduces hot wind
Heating efficiency.The diffusion degree in leaf road is larger simultaneously will also result in air-flow flow separation, generates reflux vortex, interferes gas in guide vane 12
The proper flow of stream makes the diversion effect of guide vane 12 be deteriorated.Short-range missile leaf 12 is added in the technical program between two long guide vane 12,
The diffusion degree of 12 runner of guide vane can be not only reduced, reduces the generation of the flow separation and air-flow vortex in 12 runner of guide vane, favorably
In the diversion effect of enhancing guide vane 12；And short blade is arranged in the middle rear end of linear leaf, it can avoid increasing due to the number of blade
And lead to the increase of long 12 edge gas shock of guide vane loss, (rubbing and wear along journey along journey friction loss for leaf road can also be reduced
Mistake is one kind of flow losses), to advantageously reduce the energy loss of air-flow in 12 runner of guide vane.
12 structure of guide vane only is arranged in the left and right sides of hot wind wheel outlet in the present invention, and guide vane 12 is deviated splitter vane structure
Form, the molded line of deviated splitter vane are single circular arc, and wherein short blade is arranged in the middle of two linear leafs.The present invention relates to
12 structure of guide vane of deviated splitter vane form and the method for arranging of 12 structure of guide vane.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of cooking appliance, which is characterized in that the cooking appliance includes:
Body, the body is interior to have cooking cavity, is covered with air bells cap on the rear wall of the cooking cavity, has on the air bells cap
There are the first plenum area and the second plenum area, first plenum area and second plenum area are equipped with ventilation hole, and described
Multiple guide vanes of the circumferentially-spaced arrangement along first plenum area are equipped with around one plenum area；
It is opposite before and after wind wheel, the wind wheel and first plenum area,
Wherein, the guide vane has the outer end far from first plenum area and the inner end close to first plenum area, described
Multiple guide vanes are divided into the first guide vane and the second guide vane, the distance of rotary shaft of the outer end of first guide vane to the wind wheel
The difference of the L11 and rotary shaft distance L12 of the inner end of first guide vane to the wind wheel is greater than the outer of second guide vane
Hold the difference of the distance L21 of the rotary shaft of the wind wheel with the rotary shaft distance L22 of the inner end of second guide vane to wind wheel
Value.
2. cooking appliance according to claim 1, which is characterized in that the distance L11 is equal with the distance L21, and
The distance L22 is between the distance L11 and the distance L12.
3. cooking appliance according to claim 1, which is characterized in that first guide vane is included in logical around described first
What is be intervally arranged on the direction in wind area is multiple, and is equipped at least one between at least two the first adjacent guide vanes and described second leads
Leaf.
4. cooking appliance according to any one of claim 1-3, which is characterized in that the distance L21 and the distance
The ratio of the difference between difference and the distance L11 and the distance L12 between L22 is 1/2.
5. cooking appliance according to any one of claim 1-3, which is characterized in that the guide vane is far from described first
Extend on the direction of plenum area along camber line, multiple guide vanes are having the same on the direction far from first plenum area to be prolonged
Stretch trend and extending direction.
6. cooking appliance according to claim 1, which is characterized in that multiple guide vanes are arranged in first plenum area
The left and right sides.
7. cooking appliance according to claim 1 or 6, which is characterized in that be equipped at the top and bottom of the air bells cap
The die mould item extended in left-right direction, first plenum area are located between the die mould item of the top and bottom of the air bells cap,
The neighbouring corresponding die mould item of the lower edges of first plenum area, and a left side for the die mould item described in downward projection
Extend first plenum area in right both ends.
8. cooking appliance according to any one of claim 1-3, which is characterized in that first plenum area is set to described
The middle position in left-right direction of air bells cap, and the left upper portion of the air bells cap, left lower, right upper portion and right side
In lower part at least one at be equipped with second plenum area.
9. cooking appliance according to any one of claim 1-3, which is characterized in that first plenum area is intervally arranged
There are multiple ventilation holes, multiple ventilation holes are arranged to round matrix form.
10. cooking appliance according to any one of claim 1-3, which is characterized in that first plenum area is arranged to
The heavy platform structure of surface indentation relative to the air bells cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152231.7A CN109645848B (en) | 2019-02-28 | 2019-02-28 | Electric cooking appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910152231.7A CN109645848B (en) | 2019-02-28 | 2019-02-28 | Electric cooking appliance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109645848A true CN109645848A (en) | 2019-04-19 |
| CN109645848B CN109645848B (en) | 2021-01-26 |
Family
ID=66123469
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910152231.7A Active CN109645848B (en) | 2019-02-28 | 2019-02-28 | Electric cooking appliance |
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| Country | Link |
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| CN (1) | CN109645848B (en) |
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| CN111000447A (en) * | 2019-12-31 | 2020-04-14 | 广东美的厨房电器制造有限公司 | Heating assembly and cooking device with same |
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| Publication number | Publication date |
|---|---|
| CN109645848B (en) | 2021-01-26 |
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