JP6156725B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device having a steam generating section that generates steam supplied into a heating chamber.

  Saturated steam is supplied to the high-temperature airflow circulating in the heating chamber, and the cooking equipment uses the advantages of high-speed heating by the condensation heat transfer action of steam on the food surface and the advantage of suppressing the outflow of vitamins, minerals, delicious ingredients, etc. Is conventionally known (see, for example, Patent Document 1).

  Here, a front view of the conventional cooking device 100 is shown in FIG. 8 (A), and a cross-sectional view showing the internal configuration of the conventional cooking device 100 from the side is shown in FIG. 8 (B). As shown in FIGS. 8A and 8B, in this conventional cooking device 100, the upper rail 102 extending in the front-rear direction is formed on the left inner wall surface and the right inner wall surface of the heating chamber 101. An upper cooking plate 103 is detachably mounted on each upper rail 102. A lower rail 104 extending in the front-rear direction is formed on the left inner wall surface and the right inner wall surface of the heating chamber 101. A lower cooking plate 105 is detachably mounted on each lower rail 104.

  An upper outlet 106 and a lower outlet 107 are formed on the rear surface of the heating chamber 101. A suction port 108 is formed on the rear surface of the heating chamber 101. After the air in the heating chamber 101 is sucked from the suction port 108 and the sucked air is heated by the heater, the heated air is discharged to the heating chamber 101 through the upper jet port 106 and the lower jet port 107. .

  A steam guide 109 is fixed between the upper rail 102 and the lower rail 104 on the left inner wall surface of the heating chamber 101, and a plurality of guide portions 110 are formed in the steam guide 109. These guide portions 110 are connected to a steam port of a steam generation unit (not shown) and have a cylindrical shape extending horizontally in the left-right direction. The guide part 110 guides the distribution direction of the steam supplied from the steam port of the steam generation unit. The steam supplied from the steam port is guided along the inner peripheral surface of the guide portion 110 and enters the heating chamber 101 so as to flow straight in the horizontal direction between the upper rail 102 and the lower rail 104. Supplied.

JP 2007-3090 A

  In the conventional cooking device 100 having such a configuration, the steam ejected from the guide part 110 provided between the upper rail 102 and the lower rail 104 flows straight in the heating chamber 101 in the horizontal direction. In such a case, depending on the presence / absence of the cooking dishes 103 and 105 and their positions, it becomes difficult for the steam to directly hit the food, or it is difficult to fill the heating chamber 101 uniformly. As described above, there is still room for improvement in efficiency when supplying steam into the heating chamber 101.

  This invention is made | formed in view of the said condition, The objective is to provide the heating cooker which can supply a vapor | steam efficiently in a heating chamber.

The heating cooker of the present invention has a housing that forms a heating chamber with an open front surface inside,
A cooking pan support provided on inner walls facing each other in the heating chamber and supporting both ends of the cooking tray at at least one stage of support position in the vertical direction;
A steam generator for generating steam;
There is a spout provided on the inner wall surface of the heating chamber, and a steam passage that is connected at one end to the spout and guides the steam generated at the steam generating section to the spout, and passes through the spout into the heating chamber. A steam ejection part for ejecting
A portion including one end of the steam passage of the steam ejection portion is inclined downward toward the ejection port.

  According to the cooking device according to the present invention, steam can be efficiently supplied into the heating chamber.

The perspective view of the state by which the door showing the heating cooker which concerns on one embodiment of this invention was opened The perspective view seen from the steam generation part side except the outer box in the heating cooker of this Embodiment of FIG. The perspective view of the state which opened the door in the heating cooker of this Embodiment of FIG. The enlarged view of the steam generation part in the heating cooker of this Embodiment of FIG. The enlarged view of the steam ejection part in the heating cooker of this Embodiment of FIG. The perspective view of the state by which the cooking plate was attached to the middle position in the heating cooker of this Embodiment. Longitudinal sectional view of inner box and steam ejection part in heating cooker of this embodiment (A) is a front view of a conventional cooking device, (B) is a cross-sectional view showing the internal configuration of the conventional cooking device from the side.

A heating cooker according to a first aspect of the present invention includes a housing that forms a heating chamber having an open front surface inside,
A cooking pan support provided on inner walls facing each other in the heating chamber and supporting both ends of the cooking tray at at least one stage of support position in the vertical direction;
A steam generator for generating steam;
There is a spout provided on the inner wall surface of the heating chamber, and a steam passage that is connected at one end to the spout and guides the steam generated at the steam generating section to the spout, and passes through the spout into the heating chamber. A steam ejection part for ejecting
A portion including one end of the steam passage of the steam ejection portion is inclined downward toward the ejection port.

  By setting it as such a structure, since the part including the end in the vapor | steam channel | path of a vapor | steam ejection part inclines below toward an ejection port, the vapor | steam ejected from a ejection port into a heating chamber also progresses below. . Therefore, regardless of the presence / absence of the cooking dish and the support position at which the cooking dish is supported, the steam easily hits the food directly and more easily fills the heating chamber more uniformly. Thereby, steam can be efficiently supplied into the heating chamber.

  The cooking device of the second invention is the cooking device of the first invention, wherein the spout is between the cooking plate supported by the uppermost support position of the cooking plate support and the ceiling surface of the heating chamber. It is arranged on the inner wall surface facing the space. By adopting such a configuration, it becomes easier for the steam to fill the heating chamber more uniformly, and to easily hit the food directly. Thereby, steam can be efficiently supplied into the heating chamber.

  The cooking device of the third invention is the cooking device of the first or second invention, wherein the angle formed between the part including one end of the steam passage of the steam ejection part and the bottom surface of the heating chamber is 25 ° to 35 °. It is intended to be. By adopting such a configuration, it becomes easier for the steam to fill the heating chamber more uniformly, and to easily hit the food directly. Thereby, steam can be efficiently supplied into the heating chamber.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
FIG. 1 is a perspective view showing a state where a door is opened in a heating cooker according to an embodiment of the present invention, and FIG. 2 is a state where an outer box of a housing is removed from the heating cooker of FIG. Fig. 3 is a perspective view of the heating cooker as seen from the steam generation unit side, and Fig. 3 is a perspective view showing a state where the door of the heating cooker of Fig. 2 is opened.

  As shown in FIG. 1, the heating cooker 10 of the present embodiment includes a rectangular box-shaped housing 13 having an opening 12 on a front surface 11. The housing 13 includes an inner box 15 that forms the heating chamber 14 on the inner side, and an outer box 16 that covers the outer side of the inner box 15. An object to be heated such as cooked food is put in and out of the heating chamber 14 formed inside the housing 13 through the opening 12.

  As shown in FIG. 2, in the housing 13, an upper electric chamber 17 is provided above the heating chamber 14, and a lower electric chamber 18 is provided below the heating chamber 14. A door 19 is attached to the lower side of the opening 12 of the housing 13 so as to be openable and closable at the center of rotation in the horizontal direction. The heating chamber 14 is closed by rotating the door 19 so as to be in a vertical state, and the heating chamber 14 is opened by being rotated so as to be in a horizontal state.

  A display unit 20 and an operation unit 21 are arranged on one side of the door 19 as viewed from the front. When viewed from the front, the operation unit 21 is arranged on the door 19 so that a part of the operation unit 21 overlaps the internal space of the heating chamber 14. Various operation switches 22 and cooking switches 23 for operating the cooking operation of the heating cooker 10 are provided in the operation unit 21.

  The lower electric chamber 18 includes a magnetron (not shown) for generating a microwave, a magnetron driving power source (not shown) for supplying power to the magnetron, a control unit for controlling the microwave generation operation, and the like ( (Not shown).

  A heater (convection heater (not shown)) as a heat source is provided between the back surface 24 (see FIG. 1) of the heating chamber 14 and the outer box 16. The convection heater is disposed in a housing space sandwiched between the back surface 24 of the heating chamber 14 and the outer box 16. A circulation fan (not shown) is provided on the center side of the convection heater. An intake hole 25 and an exhaust hole 26 are formed in the back surface 24 of the heating chamber 14. When the circulation fan is driven to rotate, the air in the heating chamber 14 is sucked from the intake hole 25 and heated by the convection heater. Then, it returns to the heating chamber 14 from the exhaust hole 26 again. As a result, the food is uniformly heated at a high temperature.

  An upper heater may be additionally provided on the upper surface side of the heating chamber 14 as a heat source. The upper heater heats the food in the heating chamber 14 with radiant heat by generating heat.

  On the inner wall surfaces of the inner box 15 of the housing 13 facing each other, there are provided cooking dish support portions that support both ends of the cooking dish at a plurality of support positions in the vertical direction. Specifically, as shown in FIGS. 1 and 3, a left inner wall surface 27 (see FIG. 1) and a right inner wall surface 28 that are inner wall surfaces of a pair of parallel inner boxes 15 that sandwich the opening 12 of the heating chamber 14. (See FIG. 3), an upper rail 29, a middle rail 30, and a lower rail 31 extending in the front-rear direction are provided as cooking pan support portions. Both ends of the cooking pan 32 are detachably mounted on the upper rail 29, the middle rail 30 and the lower rail 31, respectively. That is, both ends of the cooking pan 32 are supported by the left inner wall surface 27 and the right inner wall surface 28 via the rails, so that the upper and lower multi-stage support positions (upper, middle, and lower support positions) in the heating chamber 14 ( It is supported at any support position. In the heating cooker 10, at least one cooking dish 32 may be provided, and a plurality of cooking dishes 32 may be provided.

  The cooking device 10 is configured to supply steam into the heating chamber 14, and includes a water tank 33 that stores water, a steam generator 34 that generates steam using water supplied from the water tank 33, and A steam ejection section 35 is provided that ejects steam generated by the steam generation section 34 into the heating chamber 14 and supplies the steam.

  As shown in FIG. 2, the water tank 33 is provided below the lower electric chamber 18. The steam generator 34 is provided between the inner box 15 and the outer box 16 of the housing 13, and water in the water tank 33 is supplied to the steam generator 34 by a pump motor (not shown), Steam is generated at the generator 34. The steam ejection part 35 is provided as an opening hole in the steam connection pipe 36 that is a steam passage connecting the steam generation part 34 and the heating chamber 14, and the left inner wall surface 27 of the heating chamber 14. 35 A of spouts connected. The steam generated in the steam generating section 34 is supplied by being jetted into the heating chamber 14 from the jet outlet 35A through the steam connecting pipe 36. Thereby, the steam heating with respect to a foodstuff is performed.

  The control unit of the lower electric chamber 18 is provided with a control circuit having a CPU, a ROM, and a RAM, and the control circuit performs cooking control and water injection control. An internal temperature sensor (not shown) for detecting the temperature in the heating chamber 14 and a steam temperature sensor (not shown) for detecting the steam temperature generated by the steam generator 34 are connected to this control circuit. Is done. The control circuit detects the internal temperature of the heating chamber 14 based on the output signal from the internal temperature sensor, and detects the temperature of the steam generation unit 34 based on the output signal from the steam temperature sensor. The operation switch 22 and cooking switch 23 described above are connected to the control circuit. The plurality of switches are used by the user to input cooking information such as a cooking menu, cooking temperature, and presence / absence of preheating. The control circuit has a function of detecting cooking information such as a cooking menu, cooking temperature, and presence / absence of preheating according to the operation contents of the plurality of switches.

  The control circuit has a function of individually driving and controlling the circulation fan, the convection heater, the upper heating heater, the magnetron, the circulation fan, and the pump motor (all not shown) based on the detection result of the cooking information. Furthermore, the control circuit is configured so that power is supplied to the control circuit from the main power supply unit connected to the commercial power supply, and the heating power of the magnetron, the convection heater, the upper heating heater, the steam generation unit 34, etc. does not exceed the allowable power value. The power distribution to these units is controlled.

  4 is an enlarged view of the steam generating section 34 shown in FIG. 3, FIG. 5 is an enlarged view of the steam ejecting section 35 shown in FIG. 1, and FIG. 6 is a diagram in which the cooking pan 32 is attached to the middle support position. FIG. 7 is a perspective view of the heating cooker 10 in a state, and FIG. 7 is a longitudinal sectional view of the inner box 15 and the steam ejection part 35.

  The steam generation unit 34 includes a steam boiler 37 made of aluminum die casting that is lightweight and has high thermal conductivity. Connected to the steam boiler 37 are a water supply pipe 38 to which water is supplied from the water tank 33 and a siphon drain pipe 39 from which water in the steam boiler 37 is drained. Further, the steam boiler 37 is provided with a supply port 37A for supplying the generated steam, and the other end of the steam connection pipe 36 of the steam ejection part 35 is connected to the supply port 37A. As shown in FIG. 4, a steam generating heater 37 </ b> B is provided inside the steam boiler 37. The steam generation heater 37B boiles the water supplied from the water supply pipe 38, and sends the volume-expanded steam (for example, saturated steam) to the steam connection pipe 36 through the supply port 37A.

  In the steam ejection part 35, one end of the steam connection pipe 36 is connected to the ejection port 35A. In the present embodiment, as shown in FIG. 1, the jet outlet 35A of the steam jet section 35 is supported by the upper rail 29 in the cooking pan support section, that is, supported by the support position of the uppermost stage 40 of the upper and lower multistage support positions. Provided on the inner wall surface (left inner wall surface 27) facing the space between the cooked dish 32 and the ceiling surface 41 of the heating chamber 14. The jet outlet 35A of the steam jet section 35 is connected to the steam generating section 34 by the supply port 37A and the steam connection pipe 36, and the generated steam is supplied. Further, as shown in FIG. 5, the jet outlet 35 </ b> A may be opened as a cross hole 43 at the end of one steam outlet path. Further, a lattice hole may be used instead of the cross hole 43. Thus, by making the jet nozzle 35A into the cross hole 43 or the lattice hole, it is possible to prevent foreign substances from entering the jet nozzle 35A and to obtain an appropriate diffusion action of the jet steam.

  Next, as shown in FIG. 7, in the steam connection pipe 36 of the steam ejection portion 35, one end portion 45 of the steam connection pipe 36, which is a portion including one end connected to the ejection port 35 </ b> A, is directed toward the ejection port 35 </ b> A. It extends so as to be inclined downward. Specifically, one end portion 45 of the steam connection pipe 36 extends toward a substantially center 47 (a position slightly shifted downward from the center 47 in FIG. 7) of the heating chamber 14 having a substantially rectangular parallelepiped shape. .

  In the present embodiment, the angle formed by the one end portion 45 of the steam connection pipe 36 and the bottom surface 46 of the heating chamber 14 is set to about 30 °. This angle is not limited to 30 °, and may be set to 25 ° to 35 °.

  Next, the effect | action of the heating cooker 10 of this Embodiment which has the above structures is demonstrated.

  In order to perform grill heating while performing steam heating in the heating cooker 10, first, the door 19 is opened, the cooking dish 32 is attached to the heating chamber 14, and the food is placed on the cooking dish 32. Next, after closing the door 19 and operating the operation switch 22 to set a desired heating mode, the cooking switch 23 is operated.

  A high frequency is generated from the magnetron and diffused and supplied to the heating chamber 14. The high frequency absorption film of the cooking pan 32 generates heat to heat the high frequency heating element, and the heat is transmitted to the cooked food through the metal plate. Moreover, a part of the generated high frequency passes through the gap between the inner wall surface of the heating chamber 14 and the cooking dish 32 and enters the upper space of the cooking dish 32 to heat the cooked food at high frequency. Moreover, the cooking thing of the cooking tray 32 is heat-processed with a radiant heat by making an upper heater heat-generate.

  Water is supplied from the water tank 33 to the steam generator 34 by a pump motor. The steam generation unit 34 causes the supplied water to boil with the steam generation heater 37 </ b> B and generates steam (for example, saturated steam). The generated steam is supplied to the upper space of the heating chamber 14 from the jet outlet 35 </ b> A through the steam connection pipe 36. The steam hits the cooked food and heat exchange is performed to steam the cooked food, and heating with the steam is performed.

  Here, the form in which steam is supplied into the heating chamber 14 will be further described with reference to FIG. As described above, the one end 45 of the steam connection pipe 36 extends so as to be inclined downward toward the jet outlet 35A. Therefore, the steam guided by the one end 45 of the steam connection pipe 36 and ejected from the jet outlet 35A also flows in the same direction, that is, the direction in which the one end 45 extends. In other words, the steam ejection direction D is inclined downward toward the center of the heating chamber 14. According to such an arrangement, the steam ejected from the one end 45 of the steam connection pipe 36 that forms an angle of 30 ° with respect to the bottom surface 46 of the heating chamber 14 gradually diffuses, It becomes easy to hit the cooked food 32 placed at the center of the cooking pan 32 in a state of being supported at the lowermost support position. In the case of the cooking dish 32 supported at the uppermost support position of the upper and lower multistage support positions, most of the steam first hits the cooking dish 32, but the cooking dish 32 and the ceiling surface 41 of the heating chamber 14 Since the space between is relatively small, the steam fills this space, making it easier to hit the food. Furthermore, when a food item is placed on the bottom surface 46 of the heating chamber 14, cooking is as tall as rice in a bowl if the food item is placed at a substantially central position of the bottom surface 46. Steam will hit objects.

  Therefore, even when the presence / absence of the cooking pan 32 and the support position thereof are changed, the steam is more likely to directly hit the food and the steam is more uniformly filled in the heating chamber 14. In this way, steam is efficiently supplied into the heating chamber 14.

  Further, by providing the jet outlet 35A of the steam jet section 35 on the upper side of the inner wall surface of the heating chamber 14 (particularly, on the upper side of the support position of the uppermost stage 40), the steam jetted from the jet outlet 35A is heated in the heating chamber 14. Proceed downward from the upper space inside. This makes it easier for steam to fill the heating chamber 14 more uniformly and also makes it easier to directly hit food.

  In addition, if the angle formed by the one end 45 of the steam connection pipe 36 and the bottom surface 46 of the heating chamber 14 is set to 25 ° to 35 °, the steam can more easily fill the heating chamber 14 more uniformly, and the food It becomes easy to hit directly.

  As mentioned above, according to the heating cooker 1 of this Embodiment, it is provided in the housing | casing 13 which forms the heating chamber 14 with which the front surface 11 was opened inside, and the inner wall surface which the heating chamber 14 mutually opposes, and is in an up-down direction. At least one stage of the support position, the cooking dish support part that supports both ends of the cooking dish 32, the steam generation part 34 that generates steam, the jet outlet 35A provided on the inner wall surface of the heating chamber 14, and one end sprayed Steam that is connected to the outlet 35A and has a steam passage (steam connection pipe 36) that guides the steam generated in the steam generating part 34 to the jet outlet 35A, and jets steam into the heating chamber 14 through the jet outlet 35A. And a portion (one end portion 45) including one end in the steam passage of the steam ejection portion 35 is inclined downward toward the ejection port 35A.

  Thus, the one end portion 45 of the steam connection pipe 36 of the steam ejection portion 35 is inclined downward toward the ejection port 35A. Thereby, the vapor | steam ejected in the heating chamber 14 from 35A of jet nozzles also advances below. Therefore, regardless of the presence / absence of the cooking dish 32 and the support position at which the cooking dish 32 is supported, the steam easily hits the food directly and more easily fills the heating chamber 14 more uniformly. Thereby, steam can be efficiently supplied into the heating chamber 14.

  Moreover, according to the heating cooker 1 of this Embodiment, 35 A of spouts are between the cooking plate 32 supported by the support position of the uppermost stage 40 of a cooking plate support part, and the ceiling surface 41 of the heating chamber 14. FIG. It is provided on the inner wall surface (left inner wall surface 27) facing the space. This makes it easier for the steam to fill the heating chamber 14 more uniformly and also makes it easier to hit the food directly. Therefore, steam can be efficiently supplied into the heating chamber 14.

  Moreover, according to the heating cooker 1 of this Embodiment, the angle which the part (one end part 45) including the end in the steam channel | path (steam connection pipe 36) of the steam ejection part 35 and the bottom face 47 of the heating chamber 14 comprises. Is 25 ° to 35 °. This makes it easier for the steam to fill the heating chamber 14 more uniformly and also makes it easier to hit the food directly. Therefore, steam can be efficiently supplied into the heating chamber 14.

  In addition, this invention is not limited to the said embodiment, It can implement with another various aspect. For example, in the present embodiment, the case where the support position of the cooking pan 32 is vertically multi-staged has been described. However, the present invention is not limited to such a case.

  In the present embodiment, the case where the jet outlet 35A for jetting steam is provided on one inner wall surface (the left inner wall surface 27) of the heating chamber 14 has been described. You may make it each provide in the mutually opposing inner wall surface (For example, the left inner wall surface 27 and the right inner wall surface 28).

  Moreover, although this embodiment demonstrated the case where one jet nozzle 35A was provided, it is not restricted to such a case, For example, you may provide multiple jet nozzle 35A. In this case, for example, a plurality of jet outlets 35A may be provided side by side in the vertical direction, or a plurality of jet outlets 35A may be provided in the front / rear / left / right direction.

  In the present embodiment, the case where the one end portion 45 of the steam ejection portion 36 is not inclined in the front-rear direction of the heating chamber 14 (extends in a plane perpendicular to the front-rear direction of the heating chamber 14) has been described. For example, the heating chamber 14 may be inclined in the front-rear direction.

  In addition, it can be made to show the effect which each has by combining suitably arbitrary embodiment of the said various embodiment.

  While the invention has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as being included therein, so long as they do not depart from the scope of the present invention according to the appended claims.

  The present invention is suitable for application to a cooking device having a steam generator.

DESCRIPTION OF SYMBOLS 10 Heating cooker 12 Opening part 13 Case 14 Heating chamber 15 Inner box 16 Outer box 27 Left inner wall surface (inner wall surface)
28 Right inner wall (inner wall)
32 Cooking dish 34 Steam generating part 35 Steam ejecting part 35A Spout 36 Steam connecting pipe 37 Steam boiler 37A Supply port 40 Top stage 41 Ceiling surface 45 One end 46 Bottom surface 47 Center D Steam ejection direction

Claims (2)

A heating chamber having a substantially rectangular parallelepiped shape with an open front surface, and a housing that forms the heating chamber inside;
A cooking pan support provided on inner walls facing each other in the heating chamber and supporting both ends of the cooking tray at at least one stage of support position in the vertical direction;
A steam generator provided in a space between the housing and the outer wall surface of the heating chamber to generate steam;
And one only of the ejection port provided on the inner wall surface of the heating chamber facing the space between the cooking dish with the ceiling surface of the heating chamber in a state of being supported by the supporting position of the top, connected at one end to the spout A steam passage that has only one steam passage that guides the steam generated in the steam generating section to the jet outlet, and jets steam into the heating chamber through the jet outlet,
The part including the one end in the steam channel of the steam ejection part is a cooking device that is inclined so as to be inclined downward toward the ejection port and to extend toward the center of the heating chamber.   The cooking device according to claim 1, wherein an angle formed by a portion including one end of the steam passage of the steam ejection portion and a bottom surface of the heating chamber is 25 ° to 35 °.

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