JPH0590209U - Heating device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a compact heating device having high-frequency heating, oven and grill functions and good heating efficiency. [Constitution] A halogen heater, a quartz heater, a sheathed heater, and a circulation fan are housed in a heater box inside the heating device, and a reflection box for covering the halogen heater and the quartz heater separately or separately is provided for circulation. A heating device configured so that air circulating in a heating chamber and a heater box by a fan passes through or between the reflection boxes.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a heating device for heating and cooking food, and more particularly to a heater box structure of the heating device having functions of high-frequency heating, oven, and grill.

[0002]

[Prior Art]

 Conventionally, as a heating device having a function of oven cooking, there is a device described in JP-A-63-133489. FIG. 7 shows a schematic plan sectional view of the heating device, and FIG. 8 shows a schematic front sectional view thereof. In the heating device 100 shown in FIGS. 7 and 8, the heat of the sheathed heater 101 inside the heater box 105 is circulated between the heating chamber 110 and the heater box 105 by the circulation fan 102 to cook food in the oven.

The circulation fan 102 is driven by a circulation motor 107 outside the heater box 105 via pulleys 106, 106 a and a belt 103. The circulation motor 107 is a two-axis motor, and the pulley 106a is attached to one shaft, while the first cooling fan 109 for cooling the high frequency generator 108 is attached to the other shaft. Electrical components and components that require cooling during heating are cooled by the second cooling fan 112 driven by the cooling motor 111. The heating chamber top surface patching plate 104, which is located between the heating chamber 110 and the heater box 105, has a large number of small holes, and allows air to circulate between the heating chamber 110 and the heater box 105.

Further, in a heating device further having a grill cooking function, conventionally, a heater box similar to the heater box 105 is separately provided, and a heater and a fan required for grill cooking are housed therein. (Not shown).

[0005]

[Problems to be solved by the device]

 However, in the conventional heating device shown in FIGS. 7 and 8, as shown by the arrow in FIG. 8, the central lower portion of the circulation fan 102 is the intake air and the periphery of the end portion is the exhaust air. At the same time, an air pocket is generated and heat exchange is also performed. Therefore, there remains a problem that the heating efficiency in the heating chamber is poor and the food heating time is insufficient and the cooking condition is adversely affected. Further, in the conventional heating device having the functions of the oven and the grill, since the heater box for the oven and the heater box for the grill are provided separately, the heating device becomes large, or if the heating device has the same size, the heating chamber becomes larger. There is a problem that becomes smaller.

The present invention has been made in view of such a problem. A heater for oven cooking and a heater for grill cooking are housed in the same heater box, and the reflection boxes of both heaters are By providing a structure in which the circulating air is sucked and exhausted reliably, a heating device having high-frequency heating, compact high-frequency heating, oven and grill functions is provided.

[0007]

[Means for Solving the Problems]

 The invention according to claim 1 is provided with a heating chamber for heating and cooking food, a heater box adjacent to the heating chamber, and a high-frequency generator for radiating a high frequency in the heating chamber. A fan that circulates the air in the room and the heater box, a sheath heater for oven cooking, a halogen heater for grill cooking, and a quartz heater for grill cooking are provided, and in the form of a box, these two halogen heaters are provided. The heater and the quartz heater are both covered, and the heat rays generated by those two heaters are reflected in the heating chamber during grill cooking, and the air supplied from the fan through the heating chamber passes through the box during oven cooking. The heating device is provided with a reflection box that is guided and circulated to the fan through two heaters.

According to a second aspect of the present invention, there is provided a heating chamber for heating and cooking food, a heater box adjacent to the heating chamber, and a high frequency generator for radiating a high frequency into the heating chamber. A fan that circulates the air in the heating chamber and the heater box, a sheathed heater for oven cooking, a halogen heater for grill cooking, and a quartz heater for grill cooking are provided in a box-shaped box. The two halogen heaters and the quartz heater are separately covered, and the heat rays generated from these two heaters are respectively reflected into the heating chamber during grill cooking, and further supplied from the fan through the heating chamber during oven control. It is a heating device provided with a reflection box in which air is guided and circulated outside the boxes through the spaces between the boxes to the fan.

That is, the common point between the two devices is that a heater for oven cooking (sheath heater) and a heater for grill cooking (halogen heater and quartz heater) are both housed in one heater box. And, the difference between these two devices is that the reflection box for covering the halogen heater and the quartz heater is different. More specifically, the reflecting box of the invention according to claim 1 has a structure in which both the halogen heater and the quartz heater are covered, and the circulating air passes through the inside of the reflecting box. On the other hand, in the device according to the second aspect, the reflection box that covers the halogen heater and the reflection box that covers the quartz heater are provided separately, and the circulating air is outside both reflection boxes and between them. It is a configuration that passes through.

[0010]

[Action]

 The effect common to both heating devices according to the inventions is that the heater for oven cooking and the heater for grill cooking are both housed in one heater box, so that the size can be reduced and the heating chamber can be formed. Can be widened.

In the heating device according to the first aspect of the present invention, when the air is circulated by the circulation fan, the air is circulated through the reflection box that covers both the halogen heater and the quartz heater. At that time, the halogen heater and the quartz heater are energized. In this way, it is possible to compensate for the decrease in heating efficiency due to the circulation of air, and prevent the food from having a short heating time, uneven cooking, or insufficient cooking. Therefore, in this heating device, the halogen heater and the quartz heater are energized both during oven cooking and grill cooking.

In the heating device according to the second aspect of the present invention, when the air is circulated by the circulation fan, the air intake and exhaust paths formed by the reflection box covering the halogen heater, the reflection box covering the quartz heater, and the heater box side plate are passed. Circulate. In this way, heat exchange with the air pool at the intermediate portion of intake and exhaust can be eliminated, and a decrease in heating efficiency can be prevented. Therefore, in this heating device, the halogen heater and the quartz heater are energized only during grill cooking.

[0013]

【Example】

 The present invention will be described in detail below based on the embodiments shown in the drawings. However, this does not limit the present invention. First, FIGS. 1 to 3 show an embodiment of a heating device according to the first aspect of the present invention. FIG. 1 is a schematic side sectional view, FIG. 2 is a schematic plan sectional view, and FIG. 3 is a schematic side sectional view showing a state of grill cooking.

1 and 2, the heating device 1 includes a heating chamber 10, a heater box 5 adjacent to the heating chamber 10, and a high-frequency generator that radiates a high frequency into the heating chamber 10 (not shown). ) And. The heater box 5 and the heating chamber 10 are separated by a heating chamber top punching plate 4 having a large number of small holes. Inside the heater box 5, a circulation fan 2 for circulating air between the heating chamber 10 and the heater box 5, a sheathed heater 16 for oven cooking, a halogen heater 13 for grill cooking, and a quartz for grill cooking as well. A heater 14 and a common reflection box 15 that is a box-shaped reflection box that covers both of the two heaters 13 and 14 are provided. The circulation fan 2 is driven by a circulation motor 7 via pulleys 6 and 6 a and a belt 3.

A large number of small holes are provided in the central upper portion of the common reflection box 15. The air supplied from the circulation fan 2 through the heating chamber 10 enters the inside of the common reflection box 15 through the heating chamber top punching plate 4, touches the halogen heater 13 and the quartz heater 14, and the common reflection box 15 It is guided and circulated to the center of the circulation fan through many small holes in the upper center. The arrows in FIG. 1 indicate the circulating air flow.

During oven cooking, the sheathing heater 16 for oven cooking is energized, the circulation fan 2 is driven, and the halogen heater 13 and the quartz heater 14 which are heaters for grill cooking are energized. This causes air circulation as shown by the arrow in FIG. 1, and the air passing through the inside of the common reflection box 15 is heated by the halogen heater 13 and the quartz heater 14, so that the heating efficiency of the conventional air circulation is improved. Can compensate for the decline. Therefore, it is possible to prevent uneven cooking time or insufficient cooking time of food.

During grill cooking, neither the sheath heater 16 nor the circulation fan 2 is used, and only the halogen heater 13 and the quartz heater 14 are energized for use. FIG. 3 shows the state during grill cooking, and the arrows in the figure show the respective heat lines of the halogen heater 13 and the quartz heater 14.

Next, FIG. 4 to FIG. 6 show an embodiment of the heating device according to the second aspect of the present invention. FIG. 4 is a schematic side sectional view, FIG. 5 is a schematic plan sectional view, and FIG. 6 is a schematic side sectional view showing a state of grill cooking.

4 and 6, a heating device 50 includes a heating chamber 10, a heater box 5 adjacent to the heating chamber 10, and a high frequency generator (not shown) that radiates a high frequency into the heating chamber 10. It has and. The heater box 5 and the heating chamber 10 are separated by a heating chamber top surface punching plate 4 having a large number of small holes. Inside the heater box 5, a circulation fan 2 that circulates air between the heating chamber 10 and the heater box 5, a sheath heater 16 for oven cooking, a halogen heater 13 for grill cooking, and a quartz heater for grill cooking as well. A heater 14 and a first reflection box 17 and a second reflection box 17a, which are box-shaped reflection boxes that separately cover the two heaters 13 and 14, are provided.

The circulation fan 2 is driven by a circulation motor 7 via pulleys 6 and 6 a and a belt 3. When the circulation fan 2 operates to circulate air between the heater box 5 and the heating chamber 10, the circulation fan 2 is moved to the center between the first reflection box 17 and the second reflection box 17a. The intake air passage is formed, and the air circulation is as shown by the arrow in FIG.

During oven cooking, the sheath heater 16 for oven cooking is energized, the circulation fan 2 is driven, and the halogen heater 13 and the quartz heater 14 which are heaters for grill cooking are not energized. As a result, air circulation as indicated by the arrow in FIG. 4 occurs, and an air path for intake air to the circulation fan 2 is formed between the first reflection box 17 and the second reflection box 17a so that no air pool is formed. Therefore, it is possible to compensate for the decrease in heating efficiency due to the conventional air circulation. Therefore, it is possible to prevent uneven cooking time or insufficient cooking time of food.

During grill cooking, neither the sheath heater 16 nor the circulation fan 2 is used, and only the halogen heater 13 and the quartz heater 14 are energized for use. FIG. 6 shows the state during grill cooking, and the arrows in the figure show the heat rays of the halogen heater 13 and the quartz heater 14, respectively.

[0023]

[Effect of the Invention] Since the heater for oven cooking and the heater for grill cooking are housed in one heater box, a heating device having a small size and a wide heating chamber can be provided. In addition, a reflective box that covers the oven cooking heater and the grill cooking heater is installed so that the air that circulates between the heating chamber and the heater box can be efficiently sucked and exhausted, ensuring reliable cooking with high heating efficiency. A heating device can be provided.

[Brief description of drawings]

FIG. 1 is a schematic side sectional view of a heating device according to the first aspect of the present invention.

FIG. 2 is a schematic plan sectional view of a heating device according to the first aspect of the present invention.

FIG. 3 is a schematic side sectional view showing a state of grill cooking of the heating device according to the first aspect of the present invention.

FIG. 4 is a schematic side sectional view of a heating device according to a second aspect of the present invention.

FIG. 5 is a schematic plan sectional view of a heating device according to a second aspect of the present invention.

FIG. 6 is a schematic side sectional view showing a state of grill cooking of the heating device according to the second aspect of the present invention.

FIG. 7 is a schematic plan cross-sectional view of a conventional heating device.

FIG. 8 is a schematic front sectional view of a conventional heating device.

[Explanation of symbols]

 1 Heating Device 2 Circulation Fan 3 Belt 4 Heating Room Top Bunching Plate 5 Heater Box 6 Pulley 6a Pulley 7 Circulation Motor 10 Heating Chamber 13 Halogen Heater 14 Quartz Heater 15 Common Reflection Box 16 Seed Heater 17 1st Reflection Box 17a 2nd Reflection box 50 heating device

Claims (2)

[Scope of utility model registration request] 1. A heating chamber for heating and cooking food, a heater box adjacent to the heating chamber, and a high frequency generator for radiating a high frequency into the heating chamber. The heating chamber and the heater are provided in the heater box. A fan that circulates the air in the box, a sheath heater for oven cooking, a halogen heater for grill cooking, and a quartz heater for grill cooking are provided, and in a box shape, both the halogen heater and the quartz heater are combined. The heat rays generated from these two heaters when covered and grilled are reflected in the heating chamber, and when the oven is cooked, the air supplied from the fan through the heating chamber passes through the inside of the box and the fan is passed through the two heaters. A heating device equipped with a reflection box that guides and circulates to. 2. A heating chamber for heating and cooking food, a heater box adjacent to the heating chamber, and a high frequency generator for radiating a high frequency into the heating chamber. The heating chamber and the heater are provided in the heater box. A fan that circulates air in the box, a sheath heater for oven cooking, a halogen heater for grill cooking, and a quartz heater for grill cooking are provided, and the halogen heater and the quartz heater are separated in a box shape. And the heat rays generated from these two heaters are respectively reflected in the heating chamber during grill cooking, and the air supplied from the fan through the heating chamber during oven cooking passes between the boxes outside the box. A heating device provided with a reflection box which is guided and circulated to the fan.