CN110094366B - Hot air baffle and oven with same - Google Patents
Hot air baffle and oven with same Download PDFInfo
- Publication number
- CN110094366B CN110094366B CN201810094456.7A CN201810094456A CN110094366B CN 110094366 B CN110094366 B CN 110094366B CN 201810094456 A CN201810094456 A CN 201810094456A CN 110094366 B CN110094366 B CN 110094366B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000010411 cooking Methods 0.000 claims description 22
- 230000000694 effects Effects 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
- A47J37/0641—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements with forced air circulation, e.g. air fryers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a hot air baffle plate, which comprises a body, wherein an air inlet and an air outlet are formed in the body, the air inlet comprises a plurality of first air inlets and a plurality of second air inlets, the first air inlets are arc-shaped, the first air inlets are spirally and alternately arranged along the same direction, and the outer edges of the first air inlets are positioned on a first circumference; the second air inlets are arranged between two adjacent first air inlets and close to the outer ends of the first air inlets, and the outer edges of the second air inlets are tangent to the first circumference. Above-mentioned structure is favorable to reducing the collision at the air inlet air current and hot-blast baffle itself and hot-blast baffle rear side air heater impeller middle part to improve hot-blast conveying effect, and then improve the heating efficiency and the culinary art effect of oven, simultaneously, the interval arrangement is between first air intake and be close to the second air intake that first air intake outer end was arranged, can assist the water conservancy diversion to the air yield of air heater impeller tip, reduces the crossing collision of amount of wind at this, further improves the air supply effect.
Description
Technical Field
The invention relates to a hot air baffle and an oven with the same, in particular to a hot air baffle and an oven with the same, which can improve hot air conveying efficiency.
Background
In order to improve the oven temperature field and meet the air quantity requirement of baked foods, a centrifugal fan is generally arranged in the oven. The national standard T/ZRQJ-2015 requires that the household oven avoids the direct contact of human bodies with the centrifugal fan in the use process, so that a hot air baffle is generally arranged in front of the centrifugal fan in the existing oven, the user is protected, the flow guiding function is provided, and the volute of the centrifugal fan is realized.
For example, chinese patent application CN206612681U (application No. CN 201621424419.0) discloses a structure comprising a cooking cavity, a grill generating device for delivering heat of baking to the cavity of the cooking cavity, a microwave generating device for delivering microwave energy to the cavity of the cooking cavity, and a control device connected to the grill generating device and the microwave generating device for controlling the operation of the grill generating device and the microwave generating device, wherein the grill generating device comprises at least a back heating device disposed at the back of the cooking cavity, and comprises a back hot air chamber cover fixed on a hot air baffle of the cooking cavity and forming a closed hot air chamber with the hot air baffle of the cooking cavity; a back heating element disposed within the hot air chamber; the fan blade of the air heater or the fan is arranged in the hot air chamber; an air inlet and an air outlet which are communicated with the hot air chamber are arranged on the hot air baffle plate of the cooking cavity.
The air inlet of the hot air baffle adopts a densely distributed small hole structure, so that the probability of collision between air and the wall surface of the hot air baffle is increased, energy loss is caused, the hot air conveying efficiency is affected, and then the heating speed in the cooking cavity is slow, the heating speed in each area is uneven, and the cooking effect is affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing the hot air baffle plate for improving the hot air conveying effect by reducing the collision probability of air and the hot air baffle plate.
Another technical problem to be solved by the present invention is to provide an oven with the hot air baffle, which improves heating efficiency and cooking effect by adopting the hot air baffle capable of reducing collision probability of air and the hot air baffle.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a hot air baffle, includes the body, has seted up air intake and air outlet on this body, its characterized in that: the air inlets comprise a plurality of first air inlets and a plurality of second air inlets, the first air inlets are arc-shaped, the first air inlets are spirally and alternately arranged along the same direction, and the outer edges of the first air inlets are all positioned on the first circumference; the second air inlets are arranged between two adjacent first air inlets and close to the outer ends of the first air inlets, and the outer edges of the second air inlets are tangent to the first circumference.
Preferably, the width of the first air inlet gradually increases from inside to outside in the first circumferential radial direction. By adopting the structure, the fluid continuity can be satisfied, and a good air guiding effect is achieved.
Preferably, the molded line of the first air inlet comprises a first arc line segment, a second arc line segment, a third arc line segment and a closed segment, wherein the first arc line segment is arranged close to the center of the first circumference, the first end of the second arc line segment and the first end of the third arc line segment are respectively connected to the two ends of the first arc line segment and extend towards the first circumference direction, and the closed segment is connected between the second end of the second arc line segment and the second end of the third arc line segment. The above-described structure is employed in order to satisfy the continuity of the fluid.
Further preferably, the closed segment comprises a fourth arc segment connected with the second end of the second arc segment in a tangent manner, a fifth arc segment connected with the second end of the third arc segment in a tangent manner, and a first straight line segment connected between the fourth arc segment and the fifth arc segment; the diameter of the second arc line segment is smaller than that of the third arc line segment, and the fifth arc line segment is tangential to the first circumference.
Preferably, the first arc section is a semicircular arc, the centers of a plurality of first arc sections are located on a second circumference, the diameter of the first arc section is di, the diameter of the second circumference is d, di=d/n, and n is the number of the first air inlets. The width of the closing section is dm, dm=c3×di,1 < c3.ltoreq.3. By adopting the structure, the collision between air and the hot air baffle plate can be reduced on the premise of considering the air inlet area.
As an improvement, the second air inlet is in a water drop shape, and one larger end of the second air inlet is tangent to the first circumference. Because the wind speed of the tail part of the impeller of the air heater is far greater than that of the front end of the impeller, the wind quantity of the tail part of the impeller can be correspondingly increased.
Preferably, the second air inlet comprises a sixth arc segment, a seventh arc segment, a second straight line segment and a third straight line segment, the sixth arc segment arches towards the first circumference direction and is tangential to the first circumference, the seventh arc segment arches towards the center direction of the first circumference and is located in the first circumference, the second straight line segment is connected between the first end of the sixth arc segment and the first end of the seventh arc segment, and the third arc segment is connected between the second end of the sixth arc segment and the second end of the seventh arc segment.
Further preferably, the sixth arc segment is a half arc, and the diameter of the sixth arc segment is dm. The included angle between the second straight line segment and the third straight line segment is 60 degrees or more and a is or more than 10 degrees. By adopting the structure, the air quantity is convenient to be quickly reduced and intersected at the second air outlet, and interference is reduced.
Preferably, the air inlets are positioned at the middle part of the body, and the air outlets are at least two and are arranged at the side part of the body in a long and narrow shape. The number of the air outlets is four, and the air outlets are asymmetrically arranged on the body. The air outlets are unequal in size and asymmetric in position, the air outlet area is smaller than the air inlet area, the air outlet is beneficial to forming the air outlet into a beam shape, and the air outlet continuously advances for a larger distance after entering the cooking cavity, so that the rapid temperature rise is facilitated.
The utility model provides an use oven that has above-mentioned hot air baffle, includes culinary art cavity, air heater and hot air baffle, hot air baffle locate on the inside wall of culinary art cavity and be formed with the hot-blast chamber with between this inside wall, the air heater is located hot-blast chamber one side and is had the impeller that enables the wind and exchange in hot-blast chamber and culinary art cavity, its characterized in that: the impeller comprises a flat plate and blades extending outwards from the edge of the flat plate, the blades are radially arranged at the edge of the flat plate, the outer edge of the flat plate forms a third circumference, the diameter of the third circumference is De, the diameter of the second circumference is d=De-C2, and C2 is more than or equal to 5mm and less than or equal to 20mm.
If the air inlet directly enters the centrifugal fan from the cooking cavity, the air and the blades can collide directly, and the collision can generate great noise and energy loss.
As improvement, the number of the blades is multiple, the outer ends of the blades are all located on a fourth circumference, the diameter of the fourth circumference is Da, the diameter of the first circumference is D, D=Da-C1, and C1 is more than or equal to 5mm and less than or equal to 20mm. The structure can enable all air outlets to output through the air outlets, and avoid hot air from being output from the air inlets, so that air inlet is influenced, and heating efficiency is influenced.
Preferably, the camber direction of the first air inlet is opposite to the rotation direction of the impeller. The structure is favorable for improving the air inlet efficiency.
Preferably, one edge of the blade is provided with a spoiler capable of disturbing the air flow, the spoiler being arranged perpendicular to the plate, and the spoiler on each blade being located on the same edge of the respective blade.
Compared with the prior art, the invention has the advantages that: according to the invention, the first air inlets are arranged in an arc-shaped strip shape, and the plurality of first air inlets are spirally arranged in the first circumference, so that the collision between the inlet air flow and the hot air baffle and the collision between the inlet air flow and the middle part of the hot air impeller at the rear side of the hot air baffle are reduced, the hot air conveying effect is improved, the heating efficiency and the cooking effect of the oven are further improved, meanwhile, the second air inlets which are arranged between the first air inlets at intervals and close to the outer ends of the first air inlets can assist in guiding the air output at the end parts of the hot air impeller, the intersecting collision of the air output at the position is reduced, and the air supply effect is further improved.
Drawings
FIG. 1 is a schematic view of a hot air baffle according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first air inlet profile of FIG. 1;
FIG. 3 is a schematic view of an oven according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a positional relationship between a hot air baffle and an impeller according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, the hot air baffle of this embodiment includes a main body 1, a plurality of air inlets 11 and a plurality of air outlets 12 are provided on the main body 1, the air inlets 11 are located at the middle part of the main body 1, the air outlets 12 are four and are arranged on the side part of the main body 1 in a long and narrow shape, and each air outlet 12 is arranged asymmetrically on the main body 1, for example, the sizes of the air outlets 12 can be unequal, the positions can be asymmetric, and the air outlet area is smaller than the air inlet area, thereby being beneficial to the air outlet to form a bundle-shaped air outlet, and continuing to advance for a larger distance after entering into the cooking cavity, and being beneficial to rapid temperature rise.
In the embodiment, the air inlet 11 includes a plurality of first air inlets 111 and a plurality of second air inlets 112, the first air inlets 111 are arc-shaped, and the plurality of first air inlets 111 are spirally and alternately arranged along the same direction to form a circular ring structure. The outer edges of the first air inlets 111 are located on the first circumference 10, a second air inlet 112 is arranged between two adjacent first air inlets 111, the second air inlet 112 is arranged close to the outer end of the first air inlet 111, and the outer edges of the second air inlets 112 are tangential to the first circumference 10.
The width of the first air inlet 111 of this embodiment gradually increases from inside to outside in the radial direction of the first circumference 10, so as to satisfy the fluid continuity and perform a good air guiding function. Specifically, the molded line of the first air inlet 111 includes a first arc line 1111, a second arc line 1112, a third arc line 1113, and a closed section, where the first arc line 1111 is disposed near the center of the first circumference 10, the first end of the second arc line 1112 and the first end of the third arc line 1113 are respectively connected to two ends of the first arc line 1111 and extend toward the first circumference 10, and the closed section is connected between the second end of the second arc line 1112 and the second end of the third arc line 1113. The closed segment includes a fourth arcuate segment 1114 tangentially connected to a second end of the second arcuate segment 1112, a fifth arcuate segment 1115 tangentially connected to a second end of the third arcuate segment 1113, and a first linear segment 1116 connected between the fourth arcuate segment 1114 and the fifth arcuate segment 1115, the diameter of the second arcuate segment 1112 being smaller than the diameter of the third arcuate segment 1113, the fifth arcuate segment 1115 being tangential to the first circumference 10. The first arc line 1111 is a semicircle, the centers of the first arc lines 1111 are located on the second circumference 20, the diameter of the first arc line 1111 is di, the diameter of the second circumference 20 is d, di=d/n, and n is the number of the first air inlets 111. The width of the closing segment is dm, dm=c3×di,1 < c3.ltoreq.3. By adopting the structure, the collision between air and the hot air baffle plate can be reduced on the premise of considering the air inlet area.
The second air inlet 112 of the present embodiment is in a shape of a water drop, and the larger end of the second air inlet 112 is tangential to the first circumference 10. Because the wind speed of the tail part of the impeller of the air heater is far greater than that of the front end of the impeller, the wind quantity of the tail part of the impeller can be correspondingly increased. Specifically, the second air inlet 112 includes a sixth arc segment 1121, a seventh arc segment 1122, a second straight line segment 1123, and a third straight line segment 1124, where the sixth arc segment 1121 arches toward the first circumference 10 and is tangential to the first circumference 10, the seventh arc segment 1122 arches toward the center of the first circumference 10 and is located in the first circumference 10, the second straight line segment 1123 is connected between the first end of the sixth arc segment 1121 and the first end of the seventh arc segment 1122, and the third arc segment 1124 is connected between the second end of the sixth arc segment 1121 and the second end of the seventh arc segment 1122. Sixth arc 1121 is semi-circular and sixth arc 1121 has a diameter dm. The included angle between the second straight line segment 1123 and the third straight line segment 1124 is 60 degrees or more and 10 degrees or more. With this structure, it is convenient to rapidly reduce the intersection of the air volume at the second air outlet 112, and to reduce interference.
The oven with the hot air baffle in this embodiment includes a cooking cavity 2, a hot air blower 3 and the hot air baffle, the hot air baffle is disposed on an inner sidewall of the cooking cavity 2 and forms a hot air chamber 21 with the inner sidewall, the hot air blower 3 is disposed on one side of the hot air chamber 21 and has an impeller 31 capable of exchanging air between the hot air chamber 21 and the cooking cavity 2, the impeller 31 includes a disc-shaped flat plate 311 at a central portion and blades 312 extending outwards from an edge of the flat plate 311, the disc-shaped flat plate 311 is concentrically arranged with the first circumference 10, the blades 312 are radially arranged at the edge of the flat plate 311, an outer edge of the flat plate 311 forms a third circumference 30, a diameter of the third circumference 30 is De, and a diameter of the second circumference 20 is d=de-C2, and a diameter of the second circumference 20 is 5mm is less than or equal to C2 mm. If the air inlet directly enters the centrifugal fan from the inside of the cooking cavity 2, the air and the blades 312 can collide directly, and the collision can generate great noise and energy loss. The number of the blades 312 is plural, and the outer ends of the blades 312 are located on a fourth circumference 40, the diameter of the fourth circumference 40 is Da, the diameter of the first circumference 10 is D, D=Da-C1, and 5mm is less than or equal to C1 and less than or equal to 20mm. The structure can enable all air outlets to output through the air outlets, and avoid hot air from being output from the air inlets, so that air inlet is influenced, and heating efficiency is influenced. The direction of the camber of the first air inlet 111 is opposite to the rotation direction of the impeller 31. The structure is favorable for improving the air inlet efficiency. One edge of the blades 312 is provided with a spoiler 313 capable of disturbing the air flow, the spoiler 313 is arranged perpendicular to the plate 311, and the spoiler 313 on each blade 312 is located on the same edge of the corresponding blade 312.
In this embodiment, the first air inlets 111 are arranged in an arc shape and the first air inlets 111 are spirally arranged in the first circumference 10, so that the collision between the inlet air flow and the hot air baffle and the middle part of the hot air impeller 31 at the rear side of the hot air baffle is reduced, the hot air conveying effect is improved, the heating efficiency and the cooking effect of the oven are further improved, meanwhile, the second air inlets 112 which are arranged between the first air inlets 111 and close to the outer ends of the first air inlets 111 are arranged at intervals, the auxiliary flow guiding can be performed on the air outlet of the end part of the hot air impeller 31, the intersecting collision of the air outlet at the position is reduced, and the air supply effect is further improved.
Claims (12)
1. The utility model provides a hot air baffle, includes body (1), has seted up air intake (11) and air outlet (12) on this body (1), its characterized in that: the air inlet (11) comprises a plurality of first air inlets (111) and a plurality of second air inlets (112), the first air inlets (111) are arc-shaped, the plurality of first air inlets (111) are spirally arranged along the same direction at intervals, and the outer edges of the plurality of first air inlets (111) are all positioned on a first circumference (10); the second air inlets (112) are arranged between two adjacent first air inlets (111) and close to the outer ends of the first air inlets (111), and the outer edges of the second air inlets (112) are tangential to the first circumference (10);
the width of the first air inlet (111) gradually increases from inside to outside in the radial direction of the first circumference (10);
the molded line of the first air inlet (111) comprises a first arc line segment (1111), a second arc line segment (1112), a third arc line segment (1113) and a closed segment, wherein the first arc line segment (1111) is arranged close to the center of a first circumference (10), the first end of the second arc line segment (1112) and the first end of the third arc line segment (1113) are respectively connected to the two ends of the first arc line segment (1111) and extend towards the direction of the first circumference (10), and the closed segment is connected between the second end of the second arc line segment (1112) and the second end of the third arc line segment (1113);
the closed segment comprises a fourth arc segment (1114) tangentially connected with the second end of the second arc segment (1112), a fifth arc segment (1115) tangentially connected with the second end of the third arc segment (1113), and a first straight segment (1116) connected between the fourth arc segment (1114) and the fifth arc segment (1115); the diameter of the second arc line segment (1112) is smaller than that of the third arc line segment (1113), and the fifth arc line segment (1115) is tangential to the first circumference (10);
the first arc line segments (1111) are semicircular, the centers of a plurality of the first arc line segments (1111) are located on the second circumference (20), the diameter of the first arc line segments (1111) is di, the diameter of the second circumference (20) is d, di=d/n, and n is the number of the first air inlets (111).
2. The hot air baffle of claim 1 wherein: the width of the closing section is dm, dm=c3×di,1 < c3.ltoreq.3.
3. The hot air baffle of claim 2 wherein: the second air inlet (112) is in a water drop shape, and the larger end of the second air inlet (112) is tangential to the first circumference (10).
4. The hot air baffle of claim 3 wherein: the second air inlet (112) comprises a sixth arc line segment (1121), a seventh arc line segment (1122), a second straight line segment (1123) and a third straight line segment (1124), wherein the sixth arc line segment (1121) arches towards the direction of the first circumference (10) and is tangential to the first circumference (10), the seventh arc line segment (1122) arches towards the center of the first circumference (10) and is positioned in the first circumference (10), the second straight line segment (1123) is connected between the first end of the sixth arc line segment (1121) and the first end of the seventh arc line segment (1122), and the third arc line segment (1113) is connected between the second end of the sixth arc line segment (1121) and the second end of the seventh arc line segment (1122).
5. The hot air baffle of claim 4 wherein: the sixth arc segment (1121) is a half arc, and the diameter of the sixth arc segment (1121) is dm.
6. The hot air baffle of claim 4 wherein: the included angle between the second straight line section (1123) and the third straight line section (1124) is 60 degrees or more and a is or more than 10 degrees.
7. The hot air baffle of claim 1 wherein: the air inlets (11) are positioned at the middle part of the body (1), and the air outlets (12) are at least two and are arranged at the side part of the body (1) in a long and narrow shape.
8. The hot air baffle of claim 7 wherein: the number of the air outlets (12) is four, and the air outlets are asymmetrically arranged on the body (1).
9. An oven with the hot air baffle according to claim 1 or 2, comprising a cooking cavity (2), a hot air blower (3) and the hot air baffle, wherein the hot air baffle is arranged on the inner side wall of the cooking cavity (2) and forms a hot air chamber (21) with the inner side wall, and the hot air blower (3) is arranged on one side of the hot air chamber (21) and is provided with an impeller (31) which can enable air to exchange in the hot air chamber (21) and the cooking cavity (2), and the oven is characterized in that: the impeller (31) comprises a flat plate (311) and blades (312) extending outwards from the edge of the flat plate (311), the blades (312) are radially arranged at the edge of the flat plate (311), the outer edge of the flat plate (311) forms a third circumference (30), the diameter of the third circumference (30) is De, and the diameter of the second circumference (20) is d=De-C2, and C2 is more than or equal to 5mm and less than or equal to 20mm.
10. The oven of claim 9 wherein: the number of the blades (312) is multiple, the outer ends of the blades (312) are all located on a fourth circumference (40), the diameter of the fourth circumference (40) is Da, the diameter of the first circumference (10) is D, D=Da-C1, and C1 is more than or equal to 5mm and less than or equal to 20mm.
11. The oven of claim 9 wherein: the camber direction of the first air inlet (111) is opposite to the rotation direction of the impeller (31).
12. The oven of claim 9 wherein: one edge of each blade (312) is provided with a spoiler (313) capable of disturbing air flow, the spoiler (313) is arranged perpendicular to the plate (311), and the spoiler (313) on each blade (312) is positioned on the same edge of the corresponding blade (312).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094456.7A CN110094366B (en) | 2018-01-31 | 2018-01-31 | Hot air baffle and oven with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810094456.7A CN110094366B (en) | 2018-01-31 | 2018-01-31 | Hot air baffle and oven with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110094366A CN110094366A (en) | 2019-08-06 |
| CN110094366B true CN110094366B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810094456.7A Active CN110094366B (en) | 2018-01-31 | 2018-01-31 | Hot air baffle and oven with same |
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| CN (1) | CN110094366B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110558821B (en) * | 2019-09-15 | 2021-01-19 | 宁波方太厨具有限公司 | Hot air baffle and cooking device with same |
| CN111053457B (en) * | 2019-12-01 | 2022-10-11 | 宁波方太厨具有限公司 | Oven with uniform temperature field |
| CN112244660B (en) * | 2020-09-30 | 2022-01-21 | 宁波方太厨具有限公司 | Hot air structure for cooking equipment and oven with same |
| CN112901531B (en) * | 2021-01-28 | 2022-02-18 | 宁波方太厨具有限公司 | Baking heating structure and electric oven with same |
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| JP2005010494A (en) * | 2003-06-19 | 2005-01-13 | Canon Inc | Exhaust louver and vide projecting device using louver |
| CN206659695U (en) * | 2016-11-22 | 2017-11-24 | 广东德豪润达电气股份有限公司 | Baking box with hot wind circulation function |
| CN208311131U (en) * | 2018-01-31 | 2019-01-01 | 宁波方太厨具有限公司 | A kind of hot-air damper and application have the oven of the hot-air damper |
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