CN107343741B - Device for preparing food by hot air circulation - Google Patents
Device for preparing food by hot air circulation Download PDFInfo
- Publication number
- CN107343741B CN107343741B CN201610295565.6A CN201610295565A CN107343741B CN 107343741 B CN107343741 B CN 107343741B CN 201610295565 A CN201610295565 A CN 201610295565A CN 107343741 B CN107343741 B CN 107343741B
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- China
- Prior art keywords
- food preparation
- preparation chamber
- hot air
- food
- air guide
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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
-
- 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
-
- 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
- A47J36/24—Warming devices
-
- 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
Abstract
A food preparation device for preparing food by hot air circulation comprises a shell, an air circulation channel, a food preparation chamber, a heat radiation source, a motor and a fan; the food preparation chamber is located inside the housing; a hot air circulation channel is formed between the food preparation chamber and the shell; an air outlet and a heat radiation source are arranged above the food preparation chamber, and a bottom plate is arranged at the bottom of the food preparation chamber; an air guide port is arranged between the side wall and the bottom plate; the motor drives the fan to make the hot air pass through the air outlet, the hot air circulation channel, the air guide opening and the food preparation chamber in sequence to form hot air circulation. The middle part of the bottom plate is provided with a bulge facing the inner side of the food preparation chamber; the hot air entering from the air guide opening enters the food preparation chamber through the diversion of the bulge part. The hot air circulation efficiency is improved; the bottom plate prevents food residues and oil drops from leaking out of the bottom; the comprehensive hot air circulation efficiency and the leakage-proof effect are best under the condition that the food preparation chamber is internally provided with the porous frame plate.
Description
Technical Field
The present invention relates to kitchen food processing appliances, in particular to food preparation devices for domestic kitchens, and in particular to kitchen electrical processing appliances for cooking food by means of hot air circulation.
Background
The prior art devices for preparing food by means of hot air circulation comprise the folk-custom known "air fryer"; the frying basket in the cooking device is a main part for containing food to be cooked, and in order to facilitate hot air to penetrate through the food, the bottom of the frying basket is usually provided with vent holes; the vent holes in the bottom not only allow air to pass through but also facilitate food waste to fall from the bottom, and especially when the basket is pulled out of the interior of the pot, food waste and oil droplets can leak out of the vent holes in the bottom. The vent hole is arranged at the bottom and is not arranged on a channel for descending airflow, and the airflow can change direction after colliding with the bottom and passes through the through hole; and the number and size of the through holes affect the hot air circulation effect.
Disclosure of Invention
The technical problem to be solved by the invention is to avoid the defects that the bottom hot air circulation efficiency of the food preparation device in the prior art is low and food residues and oil drops are easy to leak out from the bottom vent hole, and provide the device for preparing food by means of hot air circulation; the bottom plate is not provided with through holes, so that food and oil drops are prevented from leaking from the bottom, and hot air is guided into the bottom plate from the side face, so that the hot air circulation efficiency is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a food preparation device for preparing food by hot air circulation comprises a shell for accommodating all parts, a hot air channel for hot air circulation, a food preparation chamber for accommodating food to be prepared, a motor for driving air circulation, a fan arranged on a shaft extension of the motor, and a heat radiation source for heating; the food preparation chamber is arranged in the shell; a hot air channel is formed between the food preparation chamber and the housing; particularly, an air outlet and a heat radiation source are arranged above the food preparation chamber, and a bottom plate is arranged at the bottom of the food preparation chamber; an air guide opening is arranged between the side wall of the food preparation chamber and the bottom plate; the motor drives the fan to drive hot air to sequentially pass through the air outlet, the hot air channel, the air guide opening and the food preparation chamber to form hot air circulation.
The middle part of the bottom plate is provided with a convex part protruding towards the inner side of the bottom surface of the food preparation chamber; the hot air introduced from the air guide opening is introduced into the food preparation chamber through the guide of the protrusion.
The lug boss is removably fixed in the middle of the bottom plate, and the axial section of the lug boss is parabolic.
The periphery of the bottom plate extends upwards along the axial direction or outwards along the radial direction to form a holding part for holding food and food preparation residues; and the air guide opening is disposed between the sidewall of the food preparation chamber and the receptacle.
The containing part extends upwards along the axial direction and is connected with the side wall of the food preparation chamber, and the containing part and the side wall are fixedly connected or removably connected by virtue of at least one connecting plate; when the connecting plates are multiple, the air guide ports are divided into multiple sections by the side wall plates, namely the air guide ports are formed between every two side wall plates at the positions close to the bottoms of the side walls.
The food preparation chamber is also internally provided with a porous frame plate for placing food; the porous frame plate is arranged above the bottom plate; the motor drives the fan to drive hot air to sequentially pass through the air outlet, the hot air channel, the air guide opening and the porous frame plate to enter the food preparation chamber to form hot air circulation.
A plurality of air guide through holes are formed in the porous frame plate; the hot air introduced from the air guide port is introduced into the food preparation chamber above the perforated shelf plate through the air guide through holes by the guide of the bosses.
The inner side of the side wall of the food preparation chamber comprises a radially inwardly projecting ledge on which the perforated shelf removably rests. And a hook-shaped snap spring is also arranged above the convex edge on the inner side of the side wall of the food preparation chamber, and the porous frame plate is pressed and fixed on the convex edge by the hook-shaped snap spring.
Compared with the prior art, the invention has the beneficial effects that: 1. the hot air is introduced from the air guide opening between the side wall of the food preparation chamber and the bottom plate, and is guided by the bulge part to pass through the air guide through hole to enter the food preparation chamber, the hot air does not have a partition plate to increase the air flowing resistance before entering the food preparation chamber, and the hot air does not enter the food preparation chamber through the reflection of the bottom of the pot body, so that a hot air circulation channel is optimized, the hot air circulation path is shortened, and the hot air circulation efficiency is improved; 2. the bottom of the bottom plate is not provided with a vent hole and is also provided with a containing part, the size and the height of the containing part can be adjusted according to actual requirements, and food residues and oil drops are prevented from leaking from the bottom; 3. especially in the case of providing a perforated shelf, the combined hot air circulation efficiency and leakage prevention effect are optimal.
Drawings
FIG. 1 is a schematic front perspective view of one of the preferred embodiments of the present invention;
FIG. 2 is a schematic sectional front view of one of the preferred embodiments of the present invention;
FIG. 3 is a schematic cross-sectional view of an axonometric projection of one of the preferred embodiments of the invention;
FIG. 4 is a schematic cross-sectional isometric projection of the food preparation chamber 130 in accordance with one of the preferred embodiments of the present invention;
FIG. 5 is a schematic isometric projection of a food preparation chamber 130 in accordance with a preferred embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of an axonometric projection of the food preparation chamber 130 according to a second preferred embodiment of the present invention.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings.
A preferred embodiment of a food preparation apparatus for preparing food using hot air circulation, as shown in fig. 1 to 5, comprises a housing 110 for accommodating components, a hot air path 120 for hot air circulation, a food preparation chamber 130 for accommodating food to be prepared, a motor 142 for driving air circulation and a fan 143 mounted on a shaft thereof, and a heat radiation source 150 for generating heat; the food preparation chamber 130 is disposed within the housing 110; a hot air channel 120 is formed between the food preparation chamber 130 and the housing 110; an air outlet 160 and a heat radiation source 150 are arranged above the food preparation chamber 130, and a bottom plate 180 is arranged at the bottom of the food preparation chamber 130; an air guide opening 240 is formed between the sidewall 132 of the food preparation chamber 130 and the bottom plate 180; the motor 142 drives the fan 143, and drives the hot air to circulate through the air discharge opening 160, the hot air path 120, the air guide opening 240, and the food preparation chamber 130 in this order.
As shown in fig. 4 to 6, a protrusion 187 protruding toward the inner side of the bottom surface of the food preparation chamber 130 is formed at the middle portion of the bottom plate 180; the hot air introduced from the air guide opening 240 is introduced into the food preparation chamber 130 through the guide of the protrusion 187. The boss 187 is removably fixed to the middle of the base plate 180, and has a parabolic axial sectional shape.
The protrusions 187 mainly function to guide the flow of the hot air. The protruding portion 187 may also have other shapes and forms of wind guiding structures, such as other curved or spiral wind guiding structures. Of course, the protrusions 187 may be formed in a planar structure, that is, even without the flow guiding function of the protrusions 187, the hot air may be introduced into the food preparation chamber 130 by the driving of the motor 142 and the fan 143.
The thermal radiation source 150 may be various forms of heat radiating means. The hot air is guided in from the air guide opening between the side wall of the food preparation chamber and the bottom plate, and the hot air is guided by the bulge part and passes through the air guide through hole to enter the food preparation chamber, the hot air does not have a partition plate to increase the flowing resistance of the air before entering the food preparation chamber, and the hot air does not enter the food preparation chamber through the reflection of the bottom of the pot body, so that a hot air circulation channel is optimized, the circulation path of the hot air is shortened, and the hot air circulation efficiency is improved.
As shown in fig. 4 to 6, the periphery of the bottom plate 180 extends upward along the axial direction or outward along the radial direction to form a container 189 for containing food and food preparation residues; and the air guide opening 240 is disposed between the sidewall 132 of the food preparation chamber 130 and the receptacle 189.
The holding part 189 extends upwards along the axial direction and is coupled with the side wall 132 of the food preparation chamber 130, and the holding part 189 is fixedly connected with the side wall 132 or is connected with the side wall 132 in a removable way by at least one connecting plate; when the connecting plates are multiple, the air guide opening 240 is divided into multiple sections by the side wall plates 182, that is, the air guide opening 240 is formed between every two of the multiple side wall plates 182 at the position near the bottom of the side wall 132.
The bottom of bottom plate is not provided with the ventilation hole, but also is provided with the splendid attire portion, and the size and the height of splendid attire portion can be adjusted according to actual need, have avoided food waste and oil to spill from the bottom. When the food has large granularity and is easy to leak from the side surface, the food can be prevented from leaking from the side surface by increasing the longitudinal depth of the containing part.
As shown in fig. 4 to 6, a perforated shelf plate 170 for holding food is further provided in the food preparation chamber 130; the perforated shelf 170 is disposed above the bottom plate 180; the motor 142 drives the fan 143, and drives the hot air to sequentially pass through the air discharge port 160, the hot air path 120, the air guide port 240, and the perforated shelf 170 into the food preparation chamber 130 to form a hot air circulation.
As shown in fig. 4 to 6, the porous frame plate 170 is provided with a plurality of air guide through holes 179; the hot air introduced from the air guide opening 240 is introduced into the food preparation chamber 130 above the perforated shelf 170 through each air guide through-hole 179 by the guide of the protrusions 187.
The perforated shelf 170 functions to support food and is air permeable so that hot air from the bottom can easily pass through the food. The porous frame plate 170 may be a porous structure with various shapes, such as a conventional circular hole partition plate, or a mesh structure with air holes with different shapes. The net structure or other through hole structures can make the hot air at the bottom easily pass through the food, so that the food is heated more uniformly.
The perforated shelf 170 may also be evolved to have a structure in which the vent holes are partially formed and the other regions except the vent holes are closed; for example, the air vents of the porous shelf plate 170 are single and centrally disposed, with an air impermeable spacer shelf surrounding the central portion of the air vents.
For another example, the porous shelf 170 may be designed to have a circular or other irregular partition shelf in the middle, the partition shelf is provided with a bracket around the partition shelf, the porous shelf 170 is mounted on the bottom plate 180 only through the bracket, and an air-permeable channel is formed between the partition shelf provided in the middle of the porous shelf 170 and the inner wall of the bottom plate, and the air-permeable channel may be a ring-shaped, fan-shaped, trapezoid-shaped or other shape air-permeable channel divided into a plurality of sections by the bracket.
Of course, the porous frame plate 170 may be customized to be a ceramic spacer or other spacer with no through-holes, but may be air permeable.
As shown in fig. 4 to 6, the inner side of the sidewall 132 of the food preparation chamber 130 includes a radially inwardly protruding ledge 135, and the perforated shelf 170 removably rests on the ledge 135.
The ledge 135 mainly serves to support the perforated shelf 170, and may be a complete circular ring, several circular rings, or other supporting structures with different shapes, such as a single point or multiple points triangle or a circle.
As shown in fig. 4 to 6, a hook-shaped spring 136 is further disposed above the protruding edge 135 of the inner side of the side wall 132 of the food preparation chamber 130, and the perforated shelf 170 is press-fitted and fixed on the protruding edge 135 by the hook-shaped spring 136.
The hook-shaped clamp spring 136 mainly plays a role in pressing and fixing the porous frame plate 170; the hook-shaped clamp spring 136 may also be other fixing structures that can be replaced, such as a single-point circular clamp spring or other elastic structures that can be used for fixing.
Under the condition that be provided with porous frame plate, the capacity of holding food on the porous frame plate can be adjusted as required to can hold the food of being cooked on it, further reduce the possibility that food spills, can be better avoid food waste and oil droplet to spill from the bottom.
The bottom plate and the porous frame plate are matched for use, so that the device disclosed by the invention has high comprehensive hot air circulation efficiency, can prevent food from leaking from the side surface and the bottom together, and has the best use effect.
The above embodiments only express the preferred embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A food preparation device for preparing food by hot air circulation,
comprises a shell (110) for accommodating each part, a hot air channel (120) for hot air circulation, a food preparation chamber (130) for accommodating food to be prepared, a motor (142) for driving air circulation, a fan (143) arranged on a shaft extension of the motor, and a heat radiation source (150) for heating; the food preparation chamber (130) is disposed within the housing (110); a hot air channel (120) is formed between the food preparation chamber (130) and the housing (110); an air outlet (160) and a heat radiation source (150) are arranged above the food preparation chamber (130), and a bottom plate (180) is arranged at the bottom of the food preparation chamber (130); an air guide opening (240) is arranged between the side wall (132) of the food preparation chamber (130) and the bottom plate (180); the motor (142) drives the fan (143) to drive hot air to circulate hot air sequentially through the air discharge opening (160), the hot air path (120), the air guide opening (240), and the food preparation chamber (130);
the periphery of the bottom plate (180) extends upwards along the axial direction or outwards along the radial direction to form a containing part (189) for containing food and food preparation residues; and the air guide opening (240) is disposed between the sidewall (132) of the food preparation chamber (130) and the receptacle (189).
2. The food preparation device of claim 1,
a convex part (187) protruding towards the inner side of the bottom surface of the food preparation chamber (130) is arranged in the middle of the bottom plate (180); the hot air introduced from the air guide opening (240) is introduced into the food preparation chamber (130) through the guide of the protrusion (187).
3. Food preparation device according to claim 2,
the boss (187) is removably secured to the central portion of the base plate (180) and has a parabolic axial cross-sectional shape.
4. The food preparation device of claim 1,
the holding part (189) extends upwards along the axial direction and is connected with the side wall (132) of the food preparation chamber (130), and the holding part (189) is fixedly connected with the side wall (132) or is connected with the side wall (132) in a removable way by at least one connecting plate; when the connecting plates are multiple, the air guide openings (240) are divided into multiple sections by the side wall plates (182), namely, the air guide openings (240) are formed between every two side wall plates (182) at the positions, close to the bottoms, of the side walls (132).
5. The food preparation device of claim 1,
a porous shelf plate (170) for placing food is also arranged in the food preparation chamber (130); the perforated shelf plate (170) is disposed above the bottom plate (180); the motor (142) drives the fan (143) to drive the hot air to sequentially pass through the air discharge port (160), the hot air passage (120), the air guide port (240), and the perforated shelf (170) into the food preparation chamber (130) to form a hot air circulation.
6. The food preparation device of claim 5,
a plurality of air guide through holes (179) are formed in the porous frame plate (170);
the hot air introduced from the air guide opening (240) is introduced into the food preparation chamber (130) above the perforated shelf plate (170) through each air guide through-hole (179) by the guidance of the protrusions (187).
7. The food preparation device of claim 5,
the inner side of the side wall (132) of the food preparation chamber (130) comprises a radially inwardly protruding ledge (135), and the perforated shelf plate (170) removably rests on the ledge (135).
8. The food preparation device of claim 7,
a hook-shaped clamp spring (136) is further arranged above the convex edge (135) on the inner side of the side wall (132) of the food preparation chamber (130), and the porous frame plate (170) is pressed and fixed on the convex edge (135) by the hook-shaped clamp spring (136).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295565.6A CN107343741B (en) | 2016-05-06 | 2016-05-06 | Device for preparing food by hot air circulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610295565.6A CN107343741B (en) | 2016-05-06 | 2016-05-06 | Device for preparing food by hot air circulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107343741A CN107343741A (en) | 2017-11-14 |
| CN107343741B true CN107343741B (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610295565.6A Active CN107343741B (en) | 2016-05-06 | 2016-05-06 | Device for preparing food by hot air circulation |
Country Status (1)
| Country | Link |
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| CN (1) | CN107343741B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114246486A (en) * | 2020-09-22 | 2022-03-29 | 佛山市顺德区美的电热电器制造有限公司 | Air-frying container and cooking utensil |
| CN113080716B (en) * | 2021-04-30 | 2022-12-16 | 广东美的厨房电器制造有限公司 | Cooking utensil and lid subassembly |
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| JP2009247838A (en) * | 2008-04-02 | 2009-10-29 | Eichu So | Frying machine of cycling filtration |
| JP2011073735A (en) * | 2009-09-30 | 2011-04-14 | Cuisine Laboratoire Co Ltd | Food container for microwave oven |
| CN204260584U (en) * | 2013-06-04 | 2015-04-15 | 皇家飞利浦有限公司 | For making the device of food |
| CN205913235U (en) * | 2016-05-06 | 2017-02-01 | 深圳市联创三金电器有限公司 | Utilize device of hot air cycle preparation food |
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| JP4098915B2 (en) * | 1999-03-26 | 2008-06-11 | 雪印乳業株式会社 | Microwave food container |
| CN202154560U (en) * | 2011-05-17 | 2012-03-07 | 鹤山市众森科技有限公司 | Light wave furnace |
| EP2532971A1 (en) * | 2011-06-07 | 2012-12-12 | Koninklijke Philips Electronics N.V. | Apparatus for preparing food |
| CN203138131U (en) * | 2013-03-04 | 2013-08-21 | 广东新宝电器股份有限公司 | High-efficiency electric oven |
| CN103690065A (en) * | 2013-07-19 | 2014-04-02 | 慈溪市宏邦电器有限公司 | Air fryer for fully and evenly heating food |
| CN203458246U (en) * | 2013-08-29 | 2014-03-05 | 广东新宝电器股份有限公司 | Electric baking oven |
| CN103767562A (en) * | 2014-01-23 | 2014-05-07 | 浙江朗厨厨具有限公司 | Air frying pan |
| CN203828765U (en) * | 2014-01-28 | 2014-09-17 | 余姚市奥科电器有限公司 | Frying pan |
| CN203776720U (en) * | 2014-02-25 | 2014-08-20 | 东莞市洲达电器有限公司 | Improved fully-intelligent air eddy oil-free fryer |
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2016
- 2016-05-06 CN CN201610295565.6A patent/CN107343741B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009247838A (en) * | 2008-04-02 | 2009-10-29 | Eichu So | Frying machine of cycling filtration |
| JP2011073735A (en) * | 2009-09-30 | 2011-04-14 | Cuisine Laboratoire Co Ltd | Food container for microwave oven |
| CN204260584U (en) * | 2013-06-04 | 2015-04-15 | 皇家飞利浦有限公司 | For making the device of food |
| CN205913235U (en) * | 2016-05-06 | 2017-02-01 | 深圳市联创三金电器有限公司 | Utilize device of hot air cycle preparation food |
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| CN107343741A (en) | 2017-11-14 |
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