CN112842091A - Heating device and food heating machine - Google Patents
Heating device and food heating machine Download PDFInfo
- Publication number
- CN112842091A CN112842091A CN201911181902.9A CN201911181902A CN112842091A CN 112842091 A CN112842091 A CN 112842091A CN 201911181902 A CN201911181902 A CN 201911181902A CN 112842091 A CN112842091 A CN 112842091A
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- heating
- heater
- food
- unit
- bearing unit
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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
- A47J37/067—Horizontally disposed broiling griddles
- A47J37/0676—Horizontally disposed broiling griddles electrically heated
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electric Stoves And Ranges (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
A heating device and a food heater are provided, the heating device is suitable for heating food and comprises a bearing unit suitable for placing the food and at least one heating unit which is arranged at one side of the bearing unit at intervals, the at least one heating unit comprises a heater used for heating the food and a first reflecting plate which is arranged beside the heater at intervals and used for reflecting the heat of the heater towards the bearing unit. The first reflection plate is in a protruding shape protruding towards the bearing unit, the distance between the first reflection plate and the central position of the heater is d1, the distance between the bearing unit and the central position of the heater is d2, and d2/2 is not less than d 1. Through the innovative structure and the proper position configuration of the first reflecting plate, the heating area of the heating surface of the bearing unit is increased, the uniform heating effect is achieved, the optimal heating efficiency is achieved, and therefore food can be uniformly fried and heated.
Description
Technical Field
The present invention relates to a heating device and a heating machine, and more particularly, to a heating device and a heating machine for heating food.
Background
A known frying and roasting device includes a base defining a chamber, a roasting pan disposed above the base, a heating pipe disposed in the chamber and below the roasting pan, and a planar reflecting plate disposed below the heating pipe. When the heating device is used, food is placed on the baking tray, the heating pipe can be electrified to generate heat, one part of heat generated by the heating pipe directly irradiates the baking tray, and the other part of heat is reflected upwards by the reflecting plate and then irradiates the baking tray. The baking tray can heat and bake food after being heated. However, in practice, it is found that the angle of the reflective plate reflecting heat upwards is limited due to the planar shape of the reflective plate, so that the left and right side portions of the bakeware can not receive the heat of the heater, and the heat receiving amount of the side portions of the bakeware is far less than that of the central portion of the bakeware, so that the bakeware is heated unevenly, and the food can not be heated evenly.
Another known frying and roasting device is provided with two heating pipes located at the left and right sides below the roasting pan, and two reflecting plates located below the heating pipes, respectively, the reflecting plates being curved and concave downward to resemble a paraboloid, and forming an upward opening. The opening direction of each reflecting plate is approximately inclined towards the central part of the baking tray. The volume of the frying and roasting device is large, heat is mainly reflected and concentrated towards the central part of the roasting tray, and the problem of uneven heating of the roasting tray is also caused.
Disclosure of Invention
The object of the present invention is to provide a heating device and a food heating machine that overcome at least one of the drawbacks of the background art.
The heating device is suitable for heating food and comprises a bearing unit suitable for placing the food and at least one heating unit which is arranged on one side of the bearing unit at intervals, wherein the at least one heating unit comprises a heater used for heating the food and a first reflecting plate which is arranged beside the heater at intervals and used for reflecting the heat of the heater towards the bearing unit. The first reflection plate is in a protruding shape protruding towards the bearing unit, the distance between the first reflection plate and the central position of the heater is d1, the distance between the bearing unit and the central position of the heater is d2, and d2/2 is not less than d 1.
In the heating device of the present invention, the first reflection plate is located below the heater and corresponds to the carrying unit, the at least one heating unit further includes a second reflection plate adjacent to a side of the carrying unit and configured to reflect heat of the heater toward the carrying unit, and the second reflection plate is in a protruding shape protruding toward the carrying unit.
The heating device of the invention defines a vertical line passing through the center of the heater, the distance between the side edge of the bearing unit and the vertical line is d3, the distance between the second reflection plate and the vertical line is d4, and d4 is not less than d 3.
According to the heating device, the heater is a heating pipe extending axially, and the axial direction of the heater is perpendicular to the extending direction of the horizontal line.
In the heating device of the invention, the first reflecting plate is an arc-shaped reflecting plate.
In the heating device of the present invention, the first reflective plate includes a plurality of reflective segments connected to each other, and at least one of the reflective segments is in an arc shape or a plane oblique shape.
In the heating apparatus of the present invention, the at least one heating unit further includes a protection pipe surrounding the heater and the first reflection plate, and a heat insulation plate located at the periphery of the protection pipe.
The invention relates to a food heater, which comprises a base, wherein the base comprises a bottom wall and a surrounding wall extending upwards from the periphery of the bottom wall, and the surrounding wall and the bottom wall jointly define a chamber. The food heating machine further comprises the heating device, the bearing unit of the heating device is arranged at the top of the base, and the at least one heating unit is arranged in the accommodating chamber and located below the bearing unit.
The food heating machine comprises a heating device, a bearing unit and a tray, wherein the bearing unit comprises at least one perforation which is suitable for allowing grease of food to drop downwards and is staggered with the heater in position, and the tray is positioned below the heating device and is used for bearing the grease falling from the at least one perforation.
The invention has the beneficial effects that: the innovative structure and the proper position configuration of the first reflecting plate meet the requirement that d1 is not more than d2/2, so that the heating area of the heating surface of the bearing unit is increased, the uniform heating effect is achieved, the optimal heating efficiency is achieved, and the food can be uniformly fried and heated.
Drawings
Fig. 1 is an exploded perspective view of a first embodiment of the food warmer of the present invention;
FIG. 2 is a front cross-sectional view of the first embodiment;
FIG. 3 is an exploded perspective view illustrating a partial assembly of a heating unit of the first embodiment;
FIG. 4 is a partial front view of the first embodiment;
FIG. 5 is a diagram illustrating a practical example of the first embodiment, with the relevant distances and thermal paths indicated;
fig. 6 is a front sectional view illustrating a second embodiment of the food warmer of the present invention;
fig. 7 is a front view illustrating the first reflection plate of a third embodiment of the food warmer of the present invention;
fig. 8 is a front view illustrating another modification of the first reflection plate of the third embodiment.
Detailed Description
The present invention is described in detail below with reference to the drawings and examples, and it is noted that similar components are denoted by the same reference numerals in the following description.
Referring to fig. 1-4, a first embodiment of a food heating machine, such as a toaster, is adapted to heat food and includes a base 1, a heating device 2, and a tray 3.
The base 1 comprises a bottom wall 11, an enclosing wall 12 extending upwards from the periphery of the bottom wall 11 and defining an upwardly open compartment 10 together with the bottom wall 11, and a heating control member 13 arranged on the outer surface of the enclosing wall 12, wherein the heating control member 13 can be operated to activate the heating device 2 to heat food.
The heating device 2 comprises a carrying unit 21 and two heating units 4. The bearing unit 21 is installed on the top of the base 1, the bearing unit 21 is, for example, a baking tray capable of placing food, and includes a plurality of criss-cross grid rods 211, the grid rods 211 cooperatively define a plurality of through holes 212 running through in the up-down direction, and the through holes 212 can allow the grease of the food to pass downward and drip onto the tray 3. In practice, the number of the through holes 212 may be at least one. The carrying unit 21 includes two side edges 213 disposed on the left and right sides as a whole.
The two heating units 4 are spaced below the carrying unit 21 and face each other right and left. Each heating unit 4 includes a heater 41 for heating the food, and a first reflection plate 42 and a second reflection plate 43 for reflecting heat of the heater 41 toward the carrying unit 21.
The heater 41 is a heating tube extending in the axial direction forward and backward and capable of generating heat by being energized, such as a quartz heating tube, an infrared heating tube, or another heating tube. The first reflection plate 42 is spaced below the heater 41, and the position of the first reflection plate 42 corresponds to the position of the carrying unit 21 vertically, which means that the position right above the first reflection plate 42 is covered by the carrying unit 21. The first reflection plate 42 is an arc-shaped reflection plate, and gradually protrudes upward from the left and right sides toward the middle, thus presenting a protruding shape protruding toward the carrying unit 21. The second reflective plate 43 is substantially located below the side 213 of the carrying unit 21, and the second reflective plate 43 is an arc-shaped reflective plate and has a protrusion shape protruding obliquely toward the carrying unit 21. In general, the two second reflective plates 43 of the two heating units 4 are respectively adjacent to the two sides 213 of the carrying unit 21.
Next, the distance relationship between the components of the heating device 2 will be described. The distance between the first reflection plate 42 and the center of the heater 41 is d1, the distance between the carrier unit 21 and the center of the heater 41 is d2, and d2/2 is not less than d 1. Defining a vertical line L passing through the center of the heater 41 and perpendicular to the axial direction of the heater 41, the distance between the side 213 of the carrying unit 21 and the vertical line L is d3, the distance between the second reflection plate 43 and the vertical line L is d4 (the distance d4 is the minimum distance between the second reflection plate 43 and the vertical line L), preferably, d4 is not less than d3, that is, the second reflection plate 43 is preferably located at the outer side below the side 213.
Further, each heating unit 4 further includes a protection tube 45 surrounding the heater 41, the first reflection plate 42 and being transparent glass, and a heat insulation plate 46 located at the periphery of the protection tube 45. In this embodiment, the heat shield plate 46 is gradually downwardly curved from the left and right sides toward the center, and is disposed below the protection pipe 45. The heat insulation plate 46 is made of, for example, but not limited to, a metal material, and is used for shielding heat radiated from the heater 41 downward, and preventing the grease in the tray 3 directly below the heater 41 from being heated by 2 degrees and generating smoke.
The tray 3 is removably mounted above the bottom wall 11 of the susceptor 1 and below the heating device 2. The tray 3 is adapted to receive grease falling through the perforations 212.
When the food baking device is used, food is placed on the bearing unit 21, the heater 41 is electrified to generate heat, a part of heat of the heater 41 directly irradiates to the bearing unit 21, a part of heat is upwards reflected by the first reflecting plate 42 and then irradiates to the bearing unit 21, a part of heat is reflected by the second reflecting plate 43, and the bearing unit 21 can heat and bake the food after being heated. The first reflective plate 42 is designed to be protruded toward the carrying unit 21, so that the angle range of the heat of the heater 41 reflected toward the left and right sides of the carrying unit 21 is widened, and the side 213 of the carrying unit 21 can receive more heat, thereby increasing the effective heat receiving area of the carrying unit 21 and uniformly receiving the heat as a whole. From another perspective, the height position of the first reflection plate 42 can be increased, so that the left and right heating ranges of the carrying unit 21 can be increased by the reflection of the first reflection plate 42, and the height position of the first reflection plate 42 is increased, so that the height of the whole food heating machine in the up-down direction can be reduced, thereby reducing the height and volume of the machine body and reducing the cost. In addition, with the limitation that d1 is not less than d2/2, the distance relationship among the supporting unit 21, the heater 41 and the first reflective plate 42 is limited, so that the above components are located at the optimal positions, and experiments show that under the condition that the height of the food heating machine body is not too large, the side 213 of the supporting unit 21 can be heated more, so that the supporting unit 21 can be heated enough at the side 213 or the central part, and the heating uniformity of the supporting unit 21 at each position is improved.
Furthermore, the second reflection plate 43 of each heating unit 4 is used to reflect the heat radiated from the heater 41 to the left and right sides toward the carrying unit 21, so as to enhance the heating at the side 213 of the carrying unit 21, and make the whole carrying unit 21 heated more uniformly. And when the distance d4 is not less than d3, the second reflective plate 43 is properly disposed, so as to further improve the overall heating uniformity of the carrying unit 21.
Referring to fig. 5, the following is illustrated using the schematic diagram of fig. 5. When d2 d3 d4 mm d1 d/2. The position of the supporting unit 21 directly above the heater 41 is point C, and the side of the supporting unit 21 is point B. The heat received by the points C and B is HCAnd HBThe heat received at point C is mainly heat radiated directly upward from the heater 41. And HBApproximately equal to H1+ H2+ H3, wherein H1 is the heat radiated directly from the heater 41 to the point B; h2 is heat radiated from the heater 41 to the second reflection plate 43 and then reflected by the second reflection plate 43 toward the point B; h3 is heat radiated from the heater 41 to the first reflection plate 42 and then reflected by the first reflection plate 42 toward the point B. An incident angle of heat radiation to the first reflection plate 42
The angle of incidence θ of heat radiation to the second reflection plate 43 is equal to the reflection angle θ, and conforms to the law of reflection: the angle of incidence is the angle of reflection. Since the radiant heat intensity is inversely proportional to the square of the distance, it is possible to reduce the radiant heat intensity
As can be seen, the heat reception at the points B and C is very close, which means that the whole carrying unit 21 is heated uniformly and the food material is heated uniformly.
Referring to fig. 1 and 4, it is worth mentioning that, since the position of the through hole 212 is staggered from the heater 41 of each heating unit 4, when the grease of the food drops downwards through the through hole 212, the grease will not drop to the heater 41, so that the grease can be prevented from attaching to the heater 41, thereby reducing the oil smoke generated by the grease contacting high temperature, and achieving the purpose of healthy cooking.
In summary, the present invention utilizes the innovative structure and the proper position configuration (d 1 is not less than d2/2) of the first reflective plate 42 to increase the heating area of the heating surface of the supporting unit 21, so as to achieve the uniform heating effect and the best heating efficiency, thereby being capable of frying and heating food at uniform temperature. Since the heat receiving area of the supporting unit 21 is increased, the height of the first reflecting plate 42 can be properly configured, and the overall height and volume of the main body can be greatly reduced, thereby reducing the cost.
Referring to fig. 6, a second embodiment of the food heating machine of the present invention has substantially the same structure as the first embodiment, except that the number of the heating units 4 of the heating device 2 of the second embodiment is one, the heater 41 and the first reflective plate 42 of the heating unit 4 are located right below the carrying unit 21, and the second reflective plate 43 (fig. 2) is omitted from the heating unit 4 of the second embodiment. The second embodiment can achieve the same effect of uniform heating as the first embodiment by using a single heating unit 4 and matching the restriction that d1 is not less than d 2/2.
Referring to fig. 7, a third embodiment of the food heating machine of the present invention is substantially the same as the first embodiment, except that the first reflective plate 42 includes two reflective segments 423 that are arranged side by side, each reflective segment 423 is a flat plate shape and extends in a longitudinal direction, the reflective segment 423 on the left side is disposed in an inclined manner from left to right, and the reflective segment 423 on the right side is disposed in an inclined manner from left to right, that is, the reflective segment 423 is disposed in an inclined manner from plane, so that a central portion of the first reflective plate 42 formed by connecting the two reflective segments 423 protrudes upward. Referring to fig. 8, in a variation of the third embodiment, each of the reflecting segments 423 is arc-shaped, and the two arc-shaped reflecting segments 423 are connected side by side, so that the first reflecting plate 42 is also protruded toward the carrying unit 21 (fig. 3).
As is clear from the above description of the embodiments, in the practice of the present invention, the number of the heating units 4 of the heating apparatus 2 may be one or more, and thus at least one may be required. The first reflective plate 42 may be formed by a single plate, or may include a plurality of reflective segments 423 connected to each other, at least one of the reflective segments 423 is in an arc shape or a planar inclined shape, that is, the reflective segments 423 may be all in an arc shape, or all in a planar inclined shape, or both in an arc shape and a planar inclined shape. The structure of the reflecting section 423 may be changed, as long as the first reflecting plate 42 is formed to protrude toward the carrying unit 21.
However, the above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the contents of the patent specification should be included in the scope of the present invention.
Claims (9)
1. A heating device adapted for heating food and comprising: the food shelf comprises a bearing unit suitable for placing the food and at least one heating unit which is arranged on one side of the bearing unit at intervals, wherein the at least one heating unit comprises a heater used for heating the food and a first reflecting plate which is arranged beside the heater at intervals and used for reflecting the heat of the heater towards the bearing unit, and the food shelf is characterized in that: the first reflection plate is in a protruding shape protruding towards the bearing unit, the distance between the first reflection plate and the central position of the heater is d1, the distance between the bearing unit and the central position of the heater is d2, and d2/2 is not less than d 1.
2. The heating device of claim 1, wherein: the first reflecting plate is positioned below the heater and corresponds to the bearing unit in position, the at least one heating unit also comprises a second reflecting plate which is adjacent to the side edge of the bearing unit and used for reflecting the heat of the heater towards the bearing unit, and the second reflecting plate is in a protruding shape protruding towards the bearing unit.
3. The heating device of claim 2, wherein: defining a vertical line passing through the center of the heater, wherein the distance between the side edge of the carrying unit and the vertical line is d3, the distance between the second reflection plate and the vertical line is d4, and d4 is not less than d 3.
4. A heating device as claimed in claim 3, wherein: the heater is a heating pipe extending axially, and the axial direction of the heater is vertical to the extending direction of the vertical line.
5. The heating device of claim 1, wherein: the first reflecting plate is an arc reflecting plate.
6. The heating device of claim 1, wherein: the first reflecting plate comprises a plurality of connected reflecting sections, and at least one of the reflecting sections is in an arc shape or a plane inclined shape.
7. The heating device of claim 1, wherein: the at least one heating unit further includes a protection pipe surrounding the heater, the first reflection plate, and a heat insulation plate located at the periphery of the protection pipe.
8. The utility model provides a food heating machine, contains the base, and this base includes the diapire to and the leg that extends upwards from this diapire periphery, this leg defines room, its characterized in that jointly with this diapire: the food warmer further comprises a heating device of any one of claims 1 to 7, the carrying unit of the heating device being mounted on top of the base, the at least one heating unit being mounted in the chamber and located below the carrying unit.
9. The food warmer of claim 8, wherein: the bearing unit comprises at least one perforation which is suitable for allowing the grease of the food to drip downwards and the position of which is staggered with the heater, and the food heating machine further comprises a tray which is positioned below the heating device and is used for bearing the grease falling through the at least one perforation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911181902.9A CN112842091A (en) | 2019-11-27 | 2019-11-27 | Heating device and food heating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911181902.9A CN112842091A (en) | 2019-11-27 | 2019-11-27 | Heating device and food heating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112842091A true CN112842091A (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911181902.9A Withdrawn CN112842091A (en) | 2019-11-27 | 2019-11-27 | Heating device and food heating machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112842091A (en) |
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| CN1518939A (en) * | 2003-02-06 | 2004-08-11 | ���ǵ�����ʽ���� | Cooking device |
| CN1723367A (en) * | 2003-02-05 | 2006-01-18 | 松下电器产业株式会社 | Cooking device |
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| CN2935815Y (en) * | 2006-07-05 | 2007-08-22 | 李文庆 | Electric roaster |
| CN201533778U (en) * | 2009-04-09 | 2010-07-28 | 巫佳蓁 | Far infrared baking oven structure |
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| CN201551189U (en) * | 2009-09-18 | 2010-08-18 | 关中股份有限公司 | High heat efficiency outdoor electric oven |
| CN201551187U (en) * | 2009-11-26 | 2010-08-18 | 金永春 | Meat roasting device |
| CN204207619U (en) * | 2014-11-25 | 2015-03-18 | 陈旗 | A kind of electric oven |
| CN207640233U (en) * | 2017-06-05 | 2018-07-24 | 广东万和电气有限公司 | Oven with reflection thermal cycle |
| CN108618649A (en) * | 2017-12-21 | 2018-10-09 | 江门市联晟五金电器有限公司 | A kind of novel electric heating oven |
| CN208677124U (en) * | 2017-10-10 | 2019-04-02 | 任建华 | A kind of improved electric heating oven |
| CN209450357U (en) * | 2018-09-05 | 2019-10-01 | 广东美的厨房电器制造有限公司 | Oven |
-
2019
- 2019-11-27 CN CN201911181902.9A patent/CN112842091A/en not_active Withdrawn
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2441319Y (en) * | 2000-08-11 | 2001-08-08 | 李文庆 | Electric roaster with heat ray reflector |
| CN1723367A (en) * | 2003-02-05 | 2006-01-18 | 松下电器产业株式会社 | Cooking device |
| CN1518939A (en) * | 2003-02-06 | 2004-08-11 | ���ǵ�����ʽ���� | Cooking device |
| CN1911146A (en) * | 2005-08-11 | 2007-02-14 | 三菱电机株式会社 | Heating cooker |
| CN101795506A (en) * | 2005-11-02 | 2010-08-04 | 松下电器产业株式会社 | Heating unit and heating apparatus |
| CN2935815Y (en) * | 2006-07-05 | 2007-08-22 | 李文庆 | Electric roaster |
| CN201533778U (en) * | 2009-04-09 | 2010-07-28 | 巫佳蓁 | Far infrared baking oven structure |
| CN201551189U (en) * | 2009-09-18 | 2010-08-18 | 关中股份有限公司 | High heat efficiency outdoor electric oven |
| CN201551187U (en) * | 2009-11-26 | 2010-08-18 | 金永春 | Meat roasting device |
| CN204207619U (en) * | 2014-11-25 | 2015-03-18 | 陈旗 | A kind of electric oven |
| CN207640233U (en) * | 2017-06-05 | 2018-07-24 | 广东万和电气有限公司 | Oven with reflection thermal cycle |
| CN208677124U (en) * | 2017-10-10 | 2019-04-02 | 任建华 | A kind of improved electric heating oven |
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Application publication date: 20210528 |
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