HK1144763B - Bidirectional heating cooker - Google Patents

Description

Two-way heating cooking machine

Technical Field

The present invention relates to a two-way heating cooker, and more particularly, to a two-way heating cooker which includes an upper heating element spaced apart from the upper portion of a cooking container and provided with heating elements, and which cooks food placed on the cooking container from the upper portion by radiant heat emitted from the heating elements, and a lower heating element located at the lower portion of the cooking container and directly heats the cooking container, thereby simultaneously heating the food placed on the cooking container by radiant heat emitted from the upper heating element and heat transferred from the lower heating element, and cooking or cooking the food.

Background

Generally, the manner of heat transfer is broadly divided into Conduction (Conduction) and Convection (Convection), where Conduction heat is primarily transferred through a solid and Convection heat is primarily transferred through a fluid, and Radiation (Radiation).

The radiant heat is a system for transferring heat by a process of emitting energy in the form of electromagnetic waves from the surface of a certain heating element, and the heat can be directly transferred to an object by emitting the heat at the speed of light even in a state where no medium is present. The wavelength range of the radiant heat covers the region from infrared rays to visible rays to ultraviolet rays having the shortest wavelength. However, it is known that the infrared wavelength region, such as far infrared rays and near and middle infrared rays, has the strongest thermal action compared to visible rays or ultraviolet rays. Further, various cooking products using infrared rays have been developed. For example, korean patent registration No. 779225 (published: 2007.11.28) discloses an infrared grill-roaster comprising an infrared lamp externally formed of a quartz tube, a cooking container provided at the upper end of the infrared lamp, and a reflector provided at the lower end of the infrared lamp. Such an infrared ray meat roaster employs a one-way heating method in which a cooking container is heated by an infrared ray lamp, and the lower portion of the sliced meat is cooked, so that there is an inconvenience that the sliced meat needs to be continuously turned over in order not to be burnt, and the thermal efficiency is also lowered.

Further, Korean Utility model registration No. 314608 (bulletin date: 2003.05.27) describes a meat roaster in which a near infrared lamp is installed at a predetermined interval on the upper part of a grill, and a reflection plate is installed on the upper part of the lamp. Since the meat roaster roasts meat by directly irradiating near infrared rays to meat pieces placed on the grill, it has an advantage of uniformly roasting the inside of the meat. However, the meat roaster also adopts a one-way heating method in which the near infrared rays emitted from the lamp only cook the upper part of the sliced meat, so that there is an inconvenience that the sliced meat needs to be continuously turned over.

Further, such a cooking container using infrared rays has a problem that a time for cooking the food placed on the cooking container is delayed, and also has a problem that the infrared ray lamp needs to be turned on for a long time in order to heat the food placed on the cooking container, thereby increasing electricity charges and causing a cost burden.

Further, the applicant of the present invention has introduced an infrared cooking machine in korean patent No. 833966 (registration date: 2008.05.26), comprising: a support platform which is provided with a shaft hole at the center of the upper surface and one side of which is provided with a switch for controlling a power supply; a turntable which is used as a disc-shaped container for holding food and is provided with a shaft bulge at the center of the lower part and can be separately inserted into the shaft hole; the supporting platform is arranged on one side of the supporting platform along the longitudinal direction; and an infrared irradiation part which is arranged at the upper end of the supporting table and irradiates infrared rays to the turntable after being switched on.

The infrared heating cooker adopts a bidirectional heating mode, namely, the food placed on the turntable is irradiated with infrared rays from the infrared irradiation part to cook the upper part and the inner part of the food, and the cooking container heated by the radiant heat of the infrared lamp directly cooks the lower part of the food. This is superior to the conventional one-way cooking machine in that it has a high thermal efficiency, and in particular, it can cook roast food such as sliced meat uniformly without turning over the roast food continuously, and it has an advantage that smoke and smell are hardly generated during cooking.

However, in the infrared cooking device, since the support base is provided on one side of the tray in view of the structure, there is a problem that it is inconvenient to eat food placed on the cooking container at least in the direction in which the support base is provided. Further, for example, in a restaurant or a family meal, when a person sits around the infrared heating cooker, there is a certain inconvenience.

Furthermore, since the meat is roasted by the radiant heat irradiated from the infrared irradiation part, a cooking time difference occurs in which the upper part of the sliced meat is cooked faster than the lower part before the lower turntable is heated in the initial stage of the operation in the process of roasting the meat. A user who wishes to eat more quickly would also eat by turning the slices of meat while being able to cook in both directions. Further, even though the conventional cooking machine has an advantage that the lower turn table utilizes radiant heat by utilizing upper heat generation, users familiar with the conventional lower heat generation cooking machine are restricted to a conventional method of using a grate due to a difference in cooking time between the upper and lower portions of food which may occur within 1 to 2 minutes from the initial stage of operation, and some users cannot fully utilize the function of bidirectional heating cooking by utilizing the conventional upper heat generation and lower radiant heat utilization.

In addition, the conventional method of using the lower turntable heating system has been found to cause a problem in use that is conventionally used by a user, such as heating the lower turntable by the upper heating element before starting cooking. In this way, unnecessary work such as heating the lower turntable for speed cooking is performed, and thus more electricity charges are generated due to time delay. Further, due to the difference in cooking time of the food such as sliced meat, a method of turning over and cooking the food during the cooking is used, which is similar to the use of a conventional one-way grill such as a lower heat-generating grill, and thus, there is a problem that inconvenience in use occurs at the initial stage of the cooking operation.

Disclosure of Invention

The present invention has been made in view of the problems of the korean patent No. 833966, which was proposed by the applicant of the present invention, and the problems of the conventional infrared ray cooking container, it is intended to provide a cooking apparatus in which a lower heating element for directly heating a cooking container is additionally provided at the lower end of the cooking container heated by radiant heat emitted from an infrared lamp, whereby the cooking container is heated by the lower heating element more rapidly, thereby rapidly heating food such as sliced meat placed on the upper end of the cooking container, thereby shortening the heating time and reducing the electricity charge, and based on the upper heating element composed of infrared lamp and the lower heating element arranged on the cooking container, the meat slices placed on the cooking container can be cooked quickly and uniformly without turning over, thereby facilitating the use of the dual-direction heating cooking machine in the dining room where the user who wants to eat food quickly and the people sit around to eat food.

In order to achieve the above object, a bidirectional heating cooker according to the present invention includes: a pallet forming a lower structure; the supporting table is longitudinally arranged in the center of the upper surface of the supporting table; a cooking container which is detachably arranged on the upper part of the supporting platform and is provided with a central hole for the supporting platform to pass through in the center; a cover arranged at the upper end of the supporting platform; an upper heating element provided at a lower portion of the lid and emitting radiant heat to the cooking container; a lower heating element disposed on a lower end surface of the cooking container and directly transferring heat to the cooking container; wherein the cooking container is heated to a high temperature by the radiant heat irradiated from the upper heat-generating body and the direct heating of the lower heat-generating body, and the food is cooked at the same time in upper and lower portions thereof according to the radiant heat of the upper heat-generating body and the direct heating of the lower heat-generating body.

With the two-way heating cooker according to the present invention, the upper heating element radiates heat, particularly infrared radiation heat, to cook the upper and inner portions of the food placed on the cooking container, while not only the cooking container can be rapidly heated according to the lower heating element disposed at the lower end of the cooking container, but also the lower portion of the food can be directly cooked according to the direct heat conduction of the lower heating element. Since the bidirectional heating method is adopted, even if the food is not turned over continuously, the food can be cooked evenly without being burnt, so that the food baking device is very suitable for baking meat such as streaky pork, sparerib meat and the like.

In addition, according to the two-way heating cooker of the present invention, since the support base is provided at the center of the tray and the cooking container, it is very convenient for people to sit around in various dining places, and particularly, since smoke or smell is hardly generated during cooking, it is very suitable for use in business places such as restaurants.

In addition, since the cooking container is rapidly heated by the lower heating element, the time for heating the cooking container can be shortened, and a large amount of electricity can be saved.

Drawings

FIG. 1 is a cross-sectional view of a dual-direction cooking machine according to an embodiment of the present invention;

FIG. 2 is a perspective view of the dual direction cooking apparatus of the present invention;

FIG. 3 is an exploded perspective view of the dual direction cooking apparatus of the present invention;

FIG. 4 is a sectional view showing another embodiment of the bi-directional heating cooker of the present invention;

FIG. 5 is a sectional view showing the constitution of another embodiment of the two-way cooking machine of the present invention;

FIGS. 6a and 6b are views each showing a constitution of a bidirectional cooking machine according to still another embodiment of the present invention.

[ notation ] to show

10: a pallet 11: oil receiving barrel

12: supporting convex portion 13: switch with a switch body

14: oil guide plate 20: supporting table

30: cooking container 31: center hole

32: oil drain hole 40: cover

41: the handle 42: heat insulation reflecting plate

43: protective film 44: pressing part

45: parabolic angle adjusting section 50: heating body

60: lower heating element 70: electric machine

71: drive pulley 72: rotary pulley

73: belt 74: driving gear

75: a rotating gear R: radiant heat

F: food product

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a sectional view of a two-way cooking machine according to an embodiment of the two-way cooking machine of the present invention, fig. 2 is a perspective view of the two-way cooking machine of the present invention, fig. 3 is an exploded perspective view of the two-way cooking machine of the present invention, fig. 4 is a sectional view showing another embodiment of the two-way cooking machine of the present invention, and fig. 5 is a sectional view showing another embodiment of the two-way cooking machine of the present invention.

As shown in the drawings, the bidirectional heating cooker of the present invention includes: a pallet 10 constituting a lower structure; a support table 20 provided at the center of the upper surface of the pallet 10 in the longitudinal direction; a cooking container 30 detachably provided on the upper portion of the pallet 10 and having a central hole 31 formed at the center thereof through which the support stand 20 passes; a cover 40 provided at an upper end of the support stand 20; an upper heating element 50 provided at a lower portion of the lid 40 and configured to emit radiant heat R to the cooking container 30; and a lower heating element 60 disposed on a lower end surface of the cooking container 30 to directly transfer heat to the cooking container 30.

Further, the cooking container 30 is heated to a high temperature by the radiant heat R irradiated from the upper heating element 50 and the direct heating of the lower heating element 60, and the food F is cooked at the upper and lower portions thereof by the radiant heat R of the upper heating element 50 and the direct heating of the lower heating element 60.

The tray 10 is a lower structure that contacts the floor to support the cooking machine of the present invention as a whole, and is preferably constructed in a structure having a suitable receiving space inside. If necessary, a support protrusion 12 for inserting the support table 20 may be formed at the center of the upper surface of the pallet 10, and a switch 13 for controlling a power supply may be provided at one side of the pallet 10.

The support base 20 is provided at the center of the upper surface of the holder 10 in the longitudinal direction, and may be fitted or screwed to the support protrusion 12, for example, and a pressing portion 44 whose upper portion is coupled to the inner side of the cover 40 may be provided on the outer surface of the support base 20 in order to stabilize the support base 20 when the height of the support base 20 is adjusted.

Accordingly, the height of the support base 20 can be adjusted, and although not shown, in order to adjust the height of the support base 20, the support base 20 is composed of an outer support base having a large diameter and an inner support base having a relatively small diameter, and the inner support base is inserted into the outer support base so as to be movable up and down, and then height adjustment is performed by fixing screws provided in the outer support base, and a separate support device may be provided in the support base to adjust the height. That is, the support stand 20 is used to lower the height of the support stand during cooking in order to increase the upper heating function, and to increase the height of the support stand during eating in order to facilitate eating.

In addition, the driving of the support table 20 may be performed manually or by connecting an automatic motor to automatically adjust the height of the support table 20.

The cooking container 30 is a circular container on which food F can be placed or placed, is detachably provided on the upper portion of the tray table 10, and has a central hole 31 formed at the center thereof through which the support table 20 passes. Preferably, an oil drain hole 32 is formed at the periphery of the central hole 31. At this time, an oil receiving barrel 11 and an oil guide plate 14 are provided in the interior of the pallet 10 below the oil discharge hole 32. The oil guide plate 14 serves to guide the oil falling from the oil discharge hole 32 to the oil receiving barrel 11. An oil guide hole (not shown) for allowing oil to smoothly flow down may be formed on the upper surface of the cooking container 30 for grilling.

In the two-way heating cooker of the present invention, the cooking container 30 suitable for roasting food F such as streaky pork or fish is shown in the drawings, but as another embodiment of the present invention, a cooking container suitable for cooking food having soup such as soup or chafing dish may be provided.

Further, the support stand 20 is provided at the upper end thereof with a mushroom-or umbrella-shaped cover 40, and herein, the support stand 20 is integrally formed with the cover 40 and is separable from the tray table 10, but as another embodiment of the present invention, the support stand 20 may be integrally formed with the tray table 10 and is separable from the cover 40. Further, the cooking container 30 may be separated from the main body, the support stand may be separated and the cooking container 30 may be separated, and when the support stand is formed integrally with the main body, a part of the cooking container 30 may be cut out to a size corresponding to the size of the support stand and then inserted and pulled out.

In the drawings, reference numeral 41 is not illustrated to facilitate gripping of the lid 40.

In the present invention, the upper heating element 50 may be used as long as the upper heating element 50 can emit the radiant heat R for heating the cooking container 30, and a heating element capable of emitting a large amount of infrared rays or far infrared rays is preferably used. Examples of the upper heating element 50 include a far infrared lamp, an infrared lamp, a halogen lamp, a coiled filament, and the like, and a ceramic heating element, a carbon heating element, a quartz tube heater, a titanium heater, a charcoal fire, and the like.

An adiabatic reflecting plate 42 is preferably provided between the cover 40 and the upper heating element 50. The cover 40 and the heat insulating reflecting plate 42 cut off the radiant heat R and the light emitted from the upper heating element 50 from being dispersed to other places, and further, function to collect the radiant heat R to the cooking container 30. Further, a protective film 43 such as a heat-resistant glass plate, a metal mesh plate, or a metal mesh may be provided below the heating element 50. The protective film 43 protects the upper heating element 50, prevents the upper heating element 50 from being contaminated by oil smoke, and can avoid danger to a user when the high-temperature heating element is damaged during use.

A lower heating element 60 for directly heating the cooking container 30 is provided at the lower end of the cooking container 30. As shown in the drawing, the lower heating element 60 may be formed of an electric heating wire wound around the lower end of the cooking container 30, and may be formed of an electric heating film or an electric heating coating portion. As another heat generating body, a heat generating body similar to the above-described heat generating body can be used.

According to the two-way heating cooker of the present invention, it is convenient to adopt a mode in which the support stand 20, the lid 40, and the upper heating element 50 are constituted as one body, and the cradle 10 and the cooking container 30 are constituted separately. If the support stand 20 is detached from the tray table 10, the cooking container 30 can be easily detached and replaced or cleaned. However, the susceptor 10 and the support stand 20 may be formed as a single body, and the cooking container 30 may be cut to the thickness of the support stand 20, and a separate auxiliary cooking container may be manufactured and inserted into the groove formed at this time.

The heat level of the cooking container 30 irradiated from the upper heating element 50 may be adjusted by the height of the support base 20 or by the switch 13.

In the two-way heating cooker of the present invention having the above-described configuration, the radiant heat R irradiated from the upper heating element 50 heats the cooking container 30 and the food F placed on the upper portion of the cooking container 30, and the heating of the food F can be accelerated by the lower heating element 60 provided at the lower end of the cooking container 30.

Accordingly, the present invention can heat the cooking container 30 more rapidly than the case of heating the cooking container 30 only by the radiant heat of the irradiated infrared rays, thereby reducing the waste of electricity charges, and can heat the food F rapidly, thereby not only rapidly grilling the meat, but also bidirectionally and simultaneously heating the food F placed on the cooking container 30 by the radiant heat R of the upper heating element 50 and the conductive heat of the lower heating element 60, thereby eliminating the need to repeatedly turn the meat when grilling the meat.

In the two-way heating cooker of the present invention, the cooking container 30 may be rotated manually, or the cooking container 30 may be rotated by providing a motor 70 in the tray 10 and then providing a rotation device automatically rotated by the motor 70.

The rotating device includes: a driving pulley 71 provided on a shaft of the motor 70; a rotary pulley 72 fitted to the lower end of the cooking container 30; a belt 73 connecting the driving pulley 71 and the rotating pulley 72. Or the rotating means comprises: a drive gear 74 provided on a shaft of the motor 70; a rotary gear 75 provided at the lower end of the cooking container 30 is engaged with the drive gear 74.

Accordingly, since the cooking container 30 can be rotated, the food F can be uniformly cooked by being uniformly subjected to the radiant heat R irradiated from the upper heating element 50.

Fig. 6a and 6b show a further embodiment of the bi-directional heating cooker of the present invention. As shown in the drawing, a parabolic angle adjusting part 45 connected to one side of the heat insulating reflecting plate 42 is further provided at an outer side part of the heat insulating reflecting plate 42 provided between the cover 40 and the upper heating element 50.

Accordingly, one surface of the adiabatic reflecting plate 42 is steeply inclined by the pressing operation of the parabolic angle adjusting part 45, and the radiant heat emitted from the upper heating element 50 can be expanded.

Further, since the user can set the extension range of the radiant heat R emitted from the upper heating element 50 by pressing or not pressing the parabolic angle adjusting part 45 according to the height of the upper heating element 50, it is possible to smoothly cook food regardless of the height of the lid 40 while transmitting appropriate radiant heat to the cooking container 30 according to the height of the lid 40.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to the above-described embodiments, and various modifications can be made to the respective constituent elements by those skilled in the art within the scope equivalent to the object of the present invention, and it is apparent that modified embodiments other than the new effects never contemplated in the present invention due to design changes should be made within the scope of the claims of the present invention.

Claims (7)

1. A two-way heating cooking machine, characterized by comprising:

a pallet (10) forming a lower structure;

a support table (20) disposed at the center of the upper surface of the pallet (10) in the longitudinal direction;

a cooking container (30) which is detachably arranged on the upper part of the supporting platform (10) and is provided with a central hole (31) in the center for the supporting platform (20) to penetrate through;

a cover (40) disposed at the upper end of the support table (20);

an upper heating element (50) which is provided at the lower part of the lid (40) and radiates radiant heat to the cooking container (30);

a lower heating element (60) which is provided on the lower end surface of the cooking container (30) and directly transfers heat to the cooking container (30);

wherein the cooking container (30) is heated to a high temperature according to the radiant heat irradiated from the upper heat-generating body (50) and the direct heating of the lower heat-generating body (60), and the food is cooked at the upper and lower portions thereof simultaneously according to the radiant heat of the upper heat-generating body (50) and the direct heating of the lower heat-generating body (60),

and a heat-insulating reflecting plate (42) is further provided between the cover (40) and the upper heating element (50), a parabolic angle adjusting part (45) connected to one side of the heat-insulating reflecting plate (42) is further provided on the outer side of the heat-insulating reflecting plate (42), and one surface of the heat-insulating reflecting plate (42) is steeply inclined according to the pressing operation of the parabolic angle adjusting part (45), thereby expanding the radiant heat radiated from the upper heating element (50).

2. The dual direction heat cooking machine according to claim 1, wherein a motor (70) is further provided inside the tray table (10), and a rotating means is further provided to rotate according to the motor (70) to rotate the cooking container (30).

3. The dual direction heat cooking machine of claim 2, wherein said rotating means comprises: a drive pulley (71) provided on a shaft of the motor (70); a rotating pulley (72) fitted to the lower end of the cooking container (30); a belt (73) connecting the drive pulley (71) and the rotating pulley (72).

4. The dual direction heat cooking machine of claim 2, wherein said rotating means comprises: a drive gear (74) provided on a shaft of the motor (70); a rotary gear (75) engaged with the drive gear (74) and fitted to the lower end of the cooking container (30).

5. The dual direction heat cooking machine according to claim 1, wherein a pressing portion (44) having an upper portion combined with an inner side of the cover (40) is further provided outside the support table (20) for stabilizing the support table (20) when adjusting the height of the support table (20).

6. A bi-directional cooking machine as claimed in claim 1, characterized in that the cooking container (30) is further formed with an oil drain hole (32), and the lower end of the oil drain hole (32) is further provided with an oil receiving bucket (11).

7. The two-way cooking machine according to claim 1, wherein the upper heating element (50) is one of an infrared lamp, a halogen lamp, a coiled filament, and a ceramic heater.