JP3122446U - Far infrared cooking equipment - Google Patents

Abstract

Disclosed is a far-infrared cooking apparatus that not only can adjust the amount of heat generation and the distribution of heat generation, but also realizes shortening of heat cooking time and power consumption.
SOLUTION: A housing 2 forming a heating chamber 1 has a structure in which a heat insulating material 7 is interposed around the entire periphery and a heat insulating material 10 is attached to the inside of a door 8 and the inside of the heating chamber 1 is provided. Includes a mesh shelf 3 for placing food to be cooked and a plurality of flat-type far-infrared heating elements 4 arranged in the lower part thereof, and a power supply device 5 is provided in a separate housing 15 between the housing 2. In a far-infrared cooking device provided detachably while maintaining a gap, an installation member 16 is provided below the mesh shelf 3, and the heating element 4 is placed on the installation member 16 while being narrowed by a fixing member 17 from above. The position of the heating element 4 is fixed so as to be adjustable in the front-rear and left-right directions while being held.
[Selection] Figure 2

Description

  The present invention relates to a cooking apparatus using a far-infrared heating element.

  A conventional so-called commercial cooking apparatus using far-infrared radiation generally has a power supply of AC three-phase or single-phase 200 V, and has low thermal efficiency. Further, the plurality of far-infrared heating elements are firmly fixed, and the power supply circuits to the plurality of heating elements are also turned on or off all at once. In addition, removal during maintenance is inconvenient.

  In the conventional cooking apparatus, the plurality of far-infrared type heating elements are firmly fixed, and the power supply circuits to the plurality of heating elements are also configured to be turned ON or OFF all at once, It is not considered to adjust the degree of heating for each zone or to selectively heat. Depending on the amount of food to be cooked and the content of cooking, it may be convenient to generate heat partially without using the total number of heating elements, and heat cooking efficiency that can adjust the heat generation amount and the distribution of heat generation A good cooking device was desired.

  Further, when the power source used is AC three-phase or single-phase 200V, there is an inconvenience that the use place of the far-infrared cooking device is limited to the place where the power source is located, and the cooking device having the conventional structure radiates heat from the external casing Because of the large energy consumption, the waste of power due to this heat dissipation is significant, so a 200V power supply is required and there is a risk of burns. On the other hand, a relatively large far-infrared cooking apparatus using a single-phase 100V power source has a drawback that power for cooking tends to be insufficient, and cooking time becomes long. For this reason, the comparatively large thermal-infrared far-infrared cooking apparatus by a single phase 100V power supply was desired.

  The present invention solves the problems of the conventional far-infrared cooking device and can not only adjust the calorific value and distribution of heat generation, but also ensure the heat insulating action near the door that is easy to radiate heat. An object of the present invention is to provide a far-infrared cooking device that realizes shortening of cooking time and reduction of power consumption.

  In order to achieve the above object, the invention of claim 1 has a structure in which a heat insulating material is interposed in the entire periphery as a casing forming a heating chamber, and a heat insulating material is also provided inside the door, In the heating chamber, a mesh shelf for placing food to be cooked and a plurality of flat-type far-infrared heating elements on the lower side are arranged side by side, and the power supply unit is separate from the casing for the heating chamber. In a far-infrared cooking device that is detachably placed in a state where a gap is maintained between the case and the heating chamber housing, it is installed at a moderate height from the bottom wall of the internal housing. The position of the heating element 4 is fixed in such a manner that the position of the heating element 4 can be adjusted in the front, rear, left and right directions while the heating element is mounted on the upper part of the installation member and the heating element is held by the fixing member from above. This is a far-infrared cooking device.

  The invention of claim 2 has a structure in which a heat insulating material is provided around the entire periphery of the casing that forms the heating chamber, and a heat insulating material is also attached to the inside of the door. A mesh shelf for placing cooking ingredients and a plurality of flat-type far-infrared heating elements on the lower side of the mesh shelf are placed side by side, and the power supply is heated in a separate casing from the casing for the heating chamber. In a far-infrared cooking device that is detachably disposed in a state in which a gap is maintained between the room case and the housing for a room, the heating element is divided into a plurality of groups, and the power feeding circuit of the heating element is set for each group. The plug-in type connector for each group is provided on the side or back of the casing for the heating chamber so that connection to a plurality of heating elements can be performed selectively. Infrared cooking device.

  The invention of claim 3 attaches a mounting plate to the back side of the door in a parallel state while maintaining a gap with the door main body, and attaches a heat insulating material to the mounting plate, and the heat insulating material is felt-like. A far-infrared cooking apparatus characterized in that the heat insulating material itself is brought into close contact with the front end surface of the opening portion of the inner casing by its elasticity when the door is closed.

  According to the invention of claim 4, the temperature sensor switch or the sensor portion of the temperature sensor switch is provided in the lower part of the mesh shelf, and the plug-in type connector for the temperature sensor switch is provided between the power supply device and the external casing. The far-infrared cooking apparatus according to any one of claims 1 to 3, and the device according to claim 5 is characterized in that the plug-in connector is provided in an exposed state on the side wall of the external housing. It is a far-infrared cooking device of description.

  According to the first aspect of the present invention, as the casing forming the heating chamber, a structure in which a heat insulating material is interposed around the entire periphery and a heat insulating material is also attached to the inside of the door is adopted. The heat efficiency is improved by suppressing the radiant heat as much as possible. Therefore, it is possible not only to cook in a short time with low power consumption, but also there is no risk of burns due to the device surface. In addition, since the position of the heating element is fixed so as to be movable back and forth and left and right, the distribution of heating with respect to the food to be cooked can be easily adjusted and efficient heat cooking can be performed.

  According to the invention of claim 2, the heating element is divided into a plurality of groups, a power supply circuit to the heating element is provided for each group, and the plug-in connector for each group is provided on the side of the casing for the heating chamber. Or, since it is provided on the back, it is possible to selectively connect to multiple heating elements by inserting / removing plug-in connectors, so that not only partial and efficient heating is possible, but also during maintenance. In addition to being able to partially interrupt the circuit, handling such as when the power supply 5 is removed becomes extremely convenient.

  According to the invention of claim 3, the mounting plate is attached to the back side of the door in a parallel state while maintaining a gap with the main body of the door, and a felt-like heat insulating material is attached to the mounting plate in the closed state. Because the heat insulation itself is in close contact with the front end face of the opening of the internal housing due to its elasticity, in addition to the air insulation effect due to the gap on the back side of the door, the heat insulation of the opening in the internal housing and the felt shape Due to the synergistic effect of the heat insulating effect due to the direct contact with the heat insulating material, heat radiation from the vicinity of the door can be reliably prevented. Moreover, the door itself is prevented from being heated by the heat insulating effect due to the gap of the door, so that burns due to contact with the door can be reliably prevented during the door opening / closing operation.

  According to the invention of claim 4, the temperature sensor switch or the sensor portion of the temperature sensor switch is provided at the lower part of the mesh shelf, and the plug-in type connector for the temperature sensor switch is provided between the power supply device and the external housing. Therefore, handling during maintenance is remarkably convenient. According to the fifth aspect of the present invention, since all plug-in connectors are exposed on the side walls of the external housing, it is easy to insert and remove the plug-in connectors and remove the power supply device.

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

  As a far-infrared cooking device to which the present invention is applied, as shown in the figure, a housing 2 that forms a heating chamber 1, and a mesh shelf 3 for placing cooking ingredients provided in the housing 2, The heating element 4 for generating far infrared rays provided in the housing 2 and the power supply 5 for supplying power to the heating element 4 and controlling the power supply are provided.

  First, as the housing 2 forming the heating chamber 1, as shown in FIGS. 1 to 3, a large opening 6 b is similarly provided in the front of the metal outer housing 2 a having a large opening 6 a on the front. In addition to fixing a metal inner casing 2b under the condition that the heat insulating material 7 is interposed on the entire periphery other than the opening, that is, the top, bottom, back, and both left and right sides, the outer casing 2a A metal door 8 is attached to the opening 6a by a hinge 9 so as to be freely opened and closed, and a heat insulating material 10 is attached to the inner surface of the door 8 so as to cover the entire surface of the opening 6b in the internal housing 2b in the closed state. Regarding the mounting of the heat insulating material 10, the mounting plate 8a is mounted by the support arm 8b on the back side of the main body of the door 8 while maintaining an appropriate gap, and the heat insulating material 10 is attached to the mounting plate 8a. It is preferable to attach the metal plate 11 in a sandwiched state. Further, a clasp 13 with a handle 12 is provided at the edge of the door 8, and the edge near the upper center of the outer casing 2 a corresponding to the clasp 13 is used as an engaging portion 14 corresponding to the clasp 13. Appropriately, the door 8 can be kept in a stable closed state by the engagement of the clasp 13 with the engaging portion 14.

  In addition to providing the mesh shelf 3 in a fixed state in the middle stage of the internal casing 2b, a plurality of flat plate-like heating elements 4 are arranged in parallel at the lower part of the mesh shelf 3. As the power supply device 5, a power supply device case 15 is provided separately from the external case 2 a, and the necessary electrical components are provided inside and outside the case 15, and the power supply device 5 is positioned adjacent to the external case 2 a. It attaches so that attachment or detachment is possible in the state where the space | gap is maintained between both housing | casing 2a and 15. FIG.

  As a special configuration of the present invention for the far-infrared cooking apparatus of the above type, when a plurality of heating elements 4 are arranged side by side, a heating element made of a thin metal plate material at an appropriate height from the bottom wall of the internal housing 2b. The installation member 16 is provided, and the heating element 4 is placed on the upper part of the installation member 16 and tightened with screws 18 in a state in which the heating element 4 is sandwiched by the fixing member 17 made of a thin metal plate material from above. It can be fixed by using the elasticity of the fixing member 17. As shown in FIG. 2, the fixing member 17 has a portion that contacts the heating element 4 larger than the width of the heating element 4, thereby loosening the screws 18 or resisting the elasticity of the fixing member 17 as necessary. The position of the heating element 4 can be adjusted to the front, back, left and right, and the heating element 4 can be moved and selected for partial strength or leveling according to the conditions of the cooking ingredients to be heated, so that effective cooking can be performed. Like that.

  As shown in FIG. 4, the heating element 4 is divided into a plurality of groups such as a group A and a group B, and a power feeding circuit is provided for each group. The outlets 19a and 20a for the group B are provided in an exposed state, and plugs 19b and 20b with cords corresponding to the outlets are provided in a state of being pulled out from the casing 15 of the power supply device 5, and are plugged by the outlet 19a and the plug 19b. The connector 19 and the plug-in connector 20 including the outlet 20a and the plug 20b are provided for each group. In addition, you may provide each outlet 19a and 20a in the back part of the external housing | casing 2b. If necessary, a cover that can be easily attached and detached may be provided near the plug-in connector.

  1 and 2, the power supply device 5 is provided with a power switch 21, a power indicator lamp 22, a timer switch 23, an energization indicator lamp 24, a fuse holder 25 at the front portion of the casing 15, and an AC at the rear portion. A plug-in connector 26 for connecting a single-phase 100V power supply line is provided so that an AC power supply from the outside can be obtained, and the casing 15 is equipped with a power feeding circuit as shown in FIG.

  As for the power feeding circuit, as shown in detail in FIG. 4, from the plug-in type connector 26 to the power switch 21 and the switching contact of the electromagnetic switch 27, the parallel circuit of the heating elements 4 of the groups A and B, and the fuse holder 25, and plug-in connectors 19 and 20 are interposed in the parallel circuit of each heating element 4.

  In the electromagnetic coil 27 of the electromagnetic switch 27, a parallel circuit of a timer switch 23 and a temperature sensor switch 28 and a plug-in connector 29 for the temperature sensor switch are connected in series. Is provided on the side wall of the external housing 2a in the vicinity of the plug-in connectors 19 and 20. The temperature sensor switch 28 is disposed below the mesh shelf 3 in the internal housing 2b via the plug-in connector 29, or only the sensor portion of the temperature sensor switch 28 is connected to the mesh shelf 3 via the plug-in connector 29. It is arranged at the lower part of the housing and is turned off when the heating temperature in the internal housing 2b reaches the set temperature. The power display lamp 22 and the energization display lamp 24 are connected to appropriate positions.

  The plug-in connectors 19, 20, and 29 can be selectively connected and disconnected by insertion / removal, and are not only highly convenient for maintenance of the electrical components, but also select the heating element 4 divided into groups. Can be killed easily. For the plug-in connectors 19, 20, and 29, the male side, that is, the plug may be provided in the external housing 2a, and the male and female may be in a reverse relationship to that in FIG.

  To use the cooking device, the food to be cooked is placed on the mesh shelf 3 with the plug-in connectors 19, 20, and 29 inserted, and the operation time of the timer switch 23 is desired. And the power switch 21 is turned on. The temperature sensor switch 28 sets an operating temperature in advance. When the power switch 21 is turned on, power is supplied to the circuit of the electromagnetic coil in the electromagnetic switch 27 and each contact of the electromagnetic switch 27 is turned on, and power is supplied to each heating element 4 to maintain the set temperature by the temperature sensor switch 28. Cooking is progressed intermittently by heating. When the cooking is finished, the timer switch 23 is activated and the electromagnetic switch 27 is turned off, and the power supply to each heating element 4 is stopped. At the same time, the energization display lamp 24 is extinguished so that the cooking is finished.

  In addition to the above, it is desirable to lay a heat insulating material 30 for supplementing the heat insulating material 7 on the bottom wall of the internal housing 2b. Further, as the heat insulating materials 7, 10, and 30, it is desirable to use a felt-shaped material or a hard plate-shaped material in which inorganic fibers such as ceramic fibers are appropriately compressed. If a felt-like one is suitable, and the felt-like one is adopted, the heat insulating material 10 itself uses its elasticity in the closed state, and the front end face of the opening 6b in the inner housing 2b is in a pressure contact state. As a result, heat radiation from the door 8 to the outside can be surely prevented, which is advantageous. Further, according to the formation of the gap on the back side of the door 8, the door 8 itself can be prevented from being heated by the heat insulating effect of the gap, and burns due to contact with the door 8 can be reliably prevented during the opening / closing operation of the door 8 or the like. .

  Unlike the above-described embodiment, an air-insulating layer may be provided by forming a gap between the external housing 2a and the heat insulating material 7 as shown in FIG.

  It is a perspective view of the far-infrared cooking apparatus of this invention.   It is a partially broken front view of the door opening state in the cooking apparatus of FIG.   It is a side view which cuts and shows most of the closed states in the cooking apparatus of FIG.   It is a block diagram which shows the electric circuit of this invention cooking apparatus.   It is a vertical side view which shows only the housing | casing of other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating chamber 2 Housing | casing 2a External housing | casing 2b Internal housing | casing 3 Mesh shelf 4 Heat generating body 5 Power supply device 6a Opening part 6b Opening part 7 Thermal insulation material 8 Door 10 Thermal insulation material 15 Housing | casing 16 Installation member 17 Fixing member 19 Plug-in type Connector 20 Plug-in connector 28 Temperature sensor switch 29 Plug-in connector

Claims (5)

  As a housing (2) forming the heating chamber (1), an internal housing having a large opening (6b) on the front surface in the same manner as an external housing (2a) having a large opening (6a) on the front surface. (2b) is fixed under the condition that the heat insulating material (7) is interposed around the entire periphery except for the opening, and the door (8) is provided in the opening (6a) of the external housing (2a). Is attached to the inner surface of the door (8) with a heat insulating material (10) covering the entire surface of the opening (6b) in the inner casing (2b), and the middle stage of the inner casing (2b). In addition to providing a mesh shelf (3) for placing food to be cooked, a plurality of flat plate heating elements (4) that generate far-infrared rays are arranged in parallel at the bottom of the mesh shelf (3), and further a power source As the device (5), a power supply housing (15) is provided, inside and outside the housing (15), necessary for power feeding and power feeding control. Removably disposed in a state where a gap is maintained between the outer casing (2a) and the casing (15) at a position adjacent to the outer casing (2a) while the mounting portion is provided. In the far infrared cooking device, when the heating elements (4) are arranged side by side, an installation member (16) for the heating elements is provided at an appropriate height from the bottom wall of the internal housing (2b). While the heating element (4) is placed on the upper part of the member (16), the position of the heating element (4) is set to the front, rear, left and right with the fixing member (17) holding the heating element (4) from above. A far-infrared cooking device characterized by being fixed in an adjustable manner.   As a housing (2) forming the heating chamber (1), an internal housing having a large opening (6b) on the front surface in the same manner as an external housing (2a) having a large opening (6a) on the front surface. (2b) is fixed under the condition that the heat insulating material (7) is interposed around the entire periphery except for the opening, and the door (8) is provided in the opening (6a) of the external housing (2a). Is attached to the inner surface of the door (8) with a heat insulating material (10) covering the entire surface of the opening (6b) in the inner casing (2b), and the middle stage of the inner casing (2b). In addition to providing a mesh shelf (3) for placing food to be cooked, a plurality of flat plate heating elements (4) that generate far-infrared rays are arranged in parallel at the bottom of the mesh shelf (3), and further a power source As the device (5), a power supply housing (15) is provided, inside and outside the housing (15), necessary for power feeding and power feeding control. Removably disposed in a state where a gap is maintained between the outer casing (2a) and the casing (15) at a position adjacent to the outer casing (2a) while the mounting portion is provided. In the far-infrared cooking device, the heating element (4) is divided into a plurality of groups, and a feeding circuit for the heating element (4) is provided for each group. A plug-in connector (20) is provided on the side or back of the external housing (2a), and a plurality of heating elements (4) are inserted and removed by the plug-in connector (19) and the plug-in connector (20). A far-infrared cooking apparatus characterized by being able to selectively connect to a food.   As a housing (2) forming the heating chamber (1), an internal housing having a large opening (6b) on the front surface in the same manner as an external housing (2a) having a large opening (6a) on the front surface. (2b) is fixed under the condition that the heat insulating material (7) is interposed around the entire periphery except for the opening, and the door (8) is provided in the opening (6a) of the external housing (2a). Is attached to the inner surface of the door (8) with a heat insulating material (10) covering the entire surface of the opening (6b) in the inner casing (2b), and the middle stage of the inner casing (2b). In addition to providing a mesh shelf (3) for placing food to be cooked, a plurality of flat plate heating elements (4) that generate far-infrared rays are arranged in parallel at the bottom of the mesh shelf (3), and further a power source As the device (5), a power supply housing (15) is provided, inside and outside the housing (15), necessary for power feeding and power feeding control. Removably disposed in a state where a gap is maintained between the outer casing (2a) and the casing (15) at a position adjacent to the outer casing (2a) while the mounting portion is provided. A far-infrared cooking device, wherein a mounting plate (8a) is attached to the back side of the door (8) in a parallel state while maintaining a gap with the main body of the door, and a felt-like shape is attached to the mounting plate (8a). A heat insulating material (10) is attached, and the heat insulating material (10) itself is in close contact with the front end surface of the opening (6b) of the internal housing (2b) by pressure contact in the closed state. Far infrared cooking equipment to do.   The temperature sensor switch (28) or the sensor portion of the temperature sensor switch (28) is provided at the lower part of the mesh shelf (3), and the plug-in connector (29) for the temperature sensor switch is connected to the power supply device (5) and the external housing. The far-infrared cooking apparatus of any one of Claims 1 thru | or 3 provided in the middle with the body (2a).   The far-infrared cooking device according to claim 4, wherein the plug-in connectors (19), (20), (29) are provided in an exposed state on the side wall of the external housing (2a).

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