JP5658578B2 - Cooker - Google Patents

Description

  The present invention relates to a heating cooker that accommodates an object to be cooked such as fish or meat in a cooking cabinet and cooks it.

  Conventionally, a cooking chamber for storing cooked items such as fish and meat, a heating means for cooking, and a hot air for roasting heated by the heating means for cooking while sending the gas in the cooking chamber to the heating means for cooking. 2. Description of the Related Art A heating cooker is known that includes a blowing means that includes a fan that sends food to a cooked product, and a discharge port that discharges a part of the gas in the cooking chamber to the outside (see, for example, Patent Document 1).

JP 2010-57847 A

  In this conventional heating cooker, the cooking oil separated from the food to be cooked and the oily smoke generated from the rice cake is mixed with the gas in the cooking chamber and cooked by the suction force of the blowing means. In the middle of being sent to the heating unit, it passes through the fan of the air blowing means. At this time, dirt such as oil and fat adheres to the fan blades. When dirt is attached to the fan blades, the blowing capacity of the hot air for roasting is reduced, which adversely affects cooking.

  Further, in order to prevent oil smoke and odorous components generated in the cooking chamber from being discharged outside the cooking chamber, it is necessary to separately provide a smoke extinguishing member such as a catalyst, which increases the manufacturing cost.

  The present invention has been invented in view of the above-described conventional problems, and suppresses a decrease in blowing capacity due to dirt such as oils and fats adhering to the blades of the fan, and also allows oil smoke outside the cooking chamber with an inexpensive configuration. It is an object of the present invention to provide a heating cooker that suppresses discharge of odor components.

In order to solve the above-mentioned problems, a cooking device according to claim 1 of the present invention includes a cooking chamber 1 that accommodates an object 9 to be cooked, a smoke-extinguishing unit 2 that includes cooking and smoke-removing heating means 20, and cooking. A suction passage 3 for sending the gas in the refrigerator 1 to the smoke eliminator 2, and an air guide passage 4 for sending the heated air heated by the cooking and smoke eliminating heating means 20 from the smoke eliminator 2 into the cooking cabinet 1. A gas circulation path 5 is formed to return from the cooking chamber 1 to the cooking chamber 1 via the suction path 3, the smoke extinguishing section 2, and the air guiding path 4, and between the smoke extinguishing section 2 and the air guiding path 4. The circulation path 5 is provided with a blowing means 51 that circulates the gas in the circulation path 5, the upper heating means 14 is provided in the upper part of the cooking cabinet 1, and the net portion on which the cooking object 9 is placed is cooked. A grill 15 installed above the bottom surface of the cabinet 1 is provided in the cooking cabinet 1 and heated from the air guide path 4 through the heated air jets 41 and 42. The air is jetted to the lower side of the net portion in the cooking chamber 1, and a heated air jet 41 having a jet direction upward and a heated air jet 42 having a jet direction directed downward are introduced into the air guide passage 4. Mixing in the longitudinal direction of the air passage 4, and having an outlet 50 for discharging a part of the heated air to the outside of the circulation passage 5 and an outside air intake 10 for taking outside air into the cooking chamber 1, cooking from the air guide passage 4. The cooking air 9 is heated with the hot air for roasting using the heated air sent into the cabinet 1 as the hot air for roasting, and the outside air taken in from the outside air intake 10 is supplied to the smoke eliminator 2, A part of the heated air flowing through the circulation path 5 is discharged from the discharge port 50.

By adopting such a configuration, oily smoke and odorous components generated in the cooking cabinet 1 are sent to the smoke eliminator 2 through the suction passage 3 and heated and introduced by the cooking / smoke-extinguishing heating means 20. It can be purified by reacting with oxygen in the outside air. In this case, there is no need to use a catalyst for decomposition of oily smoke or odorous components or another heating means. Since it is arrange | positioned in the downstream of the part 2, the ventilation means 51 does not get dirty with oil smoke etc. Furthermore, while heating the upper side of the to-be-cooked item 9 with the upper side heating means 14, the lower side of the to-be-cooked item 9 can be heated with heated air (hot air for roasting), and the finish of cooking is further improved. In addition, the user can save the trouble of turning the object 9 to be heated during cooking, and the cooking time can be shortened. Furthermore, uneven baking can be prevented from occurring on the lower side of the item 9 to be cooked.

  Further, the invention according to claim 2 is the invention according to claim 1, in which the inside of the cooking chamber 1 is guided by the partition wall 8 and the outside air conduction path 18 for guiding the outside air taken in from the outside air intake port 10 to the smoke eliminating section 2, It is characterized in that it is partitioned into a roasting section 19 where the food 9 is located.

  By setting it as such a structure, since the low temperature external air taken in in the cooking chamber 1 is guide | induced to the smoke_extinguishing part 2 without contacting the to-be-cooked object 9, a cooking item can be heated efficiently.

  Further, the invention according to claim 3 is the invention according to claim 2, wherein the cooking chamber 1 is provided with a door 6 that is open at the front surface and is openable and closable at the front opening. 3 is provided in the rear part of the cooking chamber 1, and a saucer 16 is provided at the lower part of the cooking cabinet 1 for receiving the broth and rice cake falling from the cooking object 9. A part of the air intake 10 is formed in the front part of the cooking chamber 1, and the air taken in from the air intake 10 passes through the air passage 18 formed on the lower side of the tray 16, and the inlet 12 is formed. It is characterized by reaching.

  By adopting such a configuration, the cooking object 9 and the tray 16 can be taken in and out from the front opening of the cooking cabinet 1, so that the tray 16 is easy to put in and out. For this reason, it is possible to suppress the generation of oily smoke or the like from the broth accumulated in the saucer 16 or the bowl.

  In the present invention, the oil smoke and odor components generated in the cooking chamber are purified and then discharged out of the cooking chamber through the discharge port, so that the room where the heating cooker is installed is soiled by the oil smoke and odor components. In addition, there is no need to use a catalyst or other heating means for the decomposition of oily smoke and odorous components, so there is no smoke in the gas discharged from the outlet to the outside of the cooking chamber with an inexpensive configuration.・ Because non-bromide is possible and the air blowing means is not soiled by oily smoke etc., there is no reduction in the air volume due to dirt due to oil smoke etc. in the air blowing means, and due to the air volume reduction, baking unevenness etc. There is no performance deterioration of the heating cooker, and an effect that favorable heating cooking is possible for a long time can be obtained.

It is the perspective view seen from the front diagonal upper part of the longitudinal section which cut the cooking-by-heating machine of one embodiment of the present invention in the direction of order. It is the perspective view seen from the front diagonally upper direction of the heating cooker same as the above. It is the perspective view seen from the front diagonal upper direction of the state which abbreviate | omitted the door of the heating cooker same as the above. It is the perspective view seen from the front diagonal upper direction of the state which abbreviate | omitted the door of the heating cooker same as the above, a grill, and a saucer. It is the perspective view seen from the front diagonally downward of the state which abbreviate | omitted the door of the heating cooker same as the above, a grill, and a saucer. It is the perspective view seen from the front slanting upper part of the longitudinal section which cut the heating cooker same as the above in the left-right direction. It is the perspective view seen from the back diagonally upper part of the longitudinal cross-section which cut | disconnected the heating cooker same as the above. It is the perspective view seen from the back diagonally upward of the same heating cooker. It is a perspective view of the cooking / smoke-extinguishing heating means same as the above. It is a longitudinal cross-sectional view explaining the basic composition of a heating cooker same as the above.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  The cooking device according to the present invention is a so-called grill provided with a cooking chamber for storing an object to be cooked, but may be provided with a stove in addition to the grill.

  As shown in FIGS. 1, 7, 10, and the like, the heating cooker is mainly composed of a cooking cabinet 1, a smoke eliminating unit 2 including a cooking / smoke-removing heating means 20, and a circulation path 5. The In the present embodiment, the outer shell of the cooking cabinet 1 is formed of a metal plate, but the material is not particularly limited. The front surface of the cooking chamber 1 is open, and a door 6 is provided at the front opening so as to be freely opened and closed. The door 6 will be described later. In the present embodiment, for convenience, the direction in which the user is normally positioned with respect to the cooking device is the front and the opposite side is the rear (back), and the left and right are the left and right when facing the rear. .

  In the present embodiment, the cooking / smoke and heating means 20 is a heating wire heater, but it may be a heating wire that uses electric power as an energy source or a combustion means such as a gas burner, and is not particularly limited. The cooking / smoke-extending heating means 20 is provided in the smoke-removing chamber 7.

  In the present embodiment, the smoke extinguishing chamber 7 is provided adjacently through the back plate 11 of the outer shell of the cooking chamber 1 and the outer shell is formed of a metal plate, but the material is not particularly limited. The inside of the cooking chamber 1 and the inside of the smoke extinguishing chamber 7 communicate with each other through an inlet 12 formed in the upper part of the back plate 11. Further, the inside of the smoke evacuation chamber 7 is further divided into a main part provided with the cooking / fume refusing heating means 20 and a fan chamber 70, and the main part and the fan chamber 70 communicate with each other via a communication port 74. ing. In addition to the communication port 74, a lead-out port 71 and an opening 72 are formed in the fan chamber 70, an air guide path 4 described later is connected to the lead-out port 71, and an exhaust duct 73 is connected to the opening 72. A fan 52 serving as the air blowing means 51 is provided in the fan chamber 70. The fan 52 is rotationally driven by a fan motor 53, and conveys the gas in the fan chamber 70 from the inlet 12 side to the outlet 71 side through the cooking / smoke-and-heater heating means 20. A part of the air flows into the air guide path 4 through the outlet 71, and the rest is discharged from the opening 72 to the outside of the heating cooker through the exhaust duct 73. The opening 72 serves as a discharge port 50 for discharging a part of the heated air to the outside of the circulation path 5. Thus, the part between the inlet 12 and the outlet 71 in the smoke extinguishing chamber 7 becomes the smoke extinguishing part 2, and the cooking and smoke eliminating heating means 20 is arranged in this part. The introduction port 12 serves as a suction path 3 for sending the gas in the cooking chamber 1 to the smoke eliminator 2, and the air guide path 4 is connected to the outlet 71.

  In this embodiment, the opening 72 formed in the fan chamber 70 serves as the discharge port 50 for discharging a part of the heated air to the outside of the circulation path 5. However, the discharge port 50 is not particularly limited to this, for example You may make it discharge | emit out of a heating cooker with the pipe | tube etc. from the middle of the path | route 4, and the structure of the fan chamber 70 becomes simple in this case. Further, although the fan motor 53 is provided outside the fan chamber 70, it may be provided inside the fan chamber 70 and is not particularly limited.

  The air guide path 4 sends the heated air heated by the cooking / smoke-extinguishing heating means 20 from the smoke eliminator 2 into the cooking chamber 1. In the present embodiment, the air guide path 4 is composed of a tube having a circular cross section, one end of which is connected to the outlet 71 and the other end is closed, and the longitudinal direction is along the left and right side walls 13 of the cooking chamber 1. However, the longitudinal direction is not limited to the front-rear direction. In the drawing, the left air guide path is indicated by 4a, and the right air guide path is indicated by 4b.

  Heated air outlets 41 and 42 are formed in the side wall of the air guide path 4, and the inside of the air guide path 4 communicates with the inside of the cooking chamber 1 through the heated air outlets 41 and 42. In the present embodiment, two rows of heated air jets 41, 42 arranged in parallel in the front-rear direction are formed vertically, and the upper heated air jet 41 is above the center of the tube of the air guide path 4. And the lower heated air outlet 42 is formed below the center of the tube, and the ejection direction is downward.

  In the present embodiment, the air guide path 4 is disposed along the outer surface of the side wall 13 of the cooking chamber 1, and an opening 13 a (FIG. 1, FIG. 4, etc.) formed in the side wall 13 of the air guide path 4. And the inside of the air guide path 4 and the inside of the cooking cabinet 1 communicate with each other through the heated air jets 41 and 42, and the air guide path 4 extends along the inner surface of the side wall 13 of the cooking chamber 1. It may be arranged, and the cross section of the tube may be other than circular. Further, the air guide path 4 may be formed by partitioning the inside of the cooking chamber 1 with an air guide path partition without forming the air guide path 4 with a pipe, and the form of the air guide path 4 is not particularly limited. Further, the air guide passage 4 may also be provided with a combustion means such as a gas burner that is not a heating wire using electric power as an energy source. In this case, the amount of heat supplied to the cooking chamber 1 can be increased. it can.

  An upper heating means 14 is provided at the upper part of the cooking chamber 1, and in this embodiment, a heating wire heater is provided as the upper heating means 14 on the ceiling surface of the cooking chamber 1, but the upper heating means 14 supplies power. It may be a heating means that is not a heating wire as an energy source or a combustion means such as a gas burner, and is not particularly limited. Note that the upper heating means 14 is not necessarily provided in the cooking cabinet 1.

  A circulation path that returns from the cooking chamber 1 to the cooking chamber 1 through the suction channel 3, the smoke eliminating unit 2, and the air guiding channel 4 in this order by the cooking chamber 1, the suction channel 3, the smoke eliminating unit 2, and the air guiding channel 4. 5 is formed. And the ventilation means 51 (this embodiment fan 52 and fan motor 53) which circulates the gas in this circulation path 5 is provided in the part between the smoke extinguishing part 2 of the circulation path 5, and the wind guide path 4. Yes.

  Moreover, the heating cooker is provided with an outside air intake 10 for taking in air outside the heating cooker in the cooking chamber 1, and in the present embodiment, the outside air intake 10 is formed in the door 6, so that the front of the cooking chamber 1 is formed. Formed in the part. In this embodiment, the door 6 is mainly composed of a front plate 61 located on the front side and a back plate 62 located behind the front plate 61 and exposed in the cooking chamber 1. The periphery between the two is closed and the internal space is substantially sealed. An outside air intake 10 is formed in the bottom plate, and an opening 63 is formed in the lower part of the back plate 62, and air outside the heating cooker enters the cooking chamber 1 through the outside air intake 10 and the opening 63. Incorporated.

  In addition, in the cooking chamber 1, a tray 16 that receives the broth and rice cake falling from the cooking object 9 is provided below the net portion of the grill net 15 and the air guide path 4 and above the opening portion 63. . The saucer 16 is attached in a state where there is a gap from the bottom surface of the cooking chamber 1 and the back plate 11, and a partition 17 is provided upward from the rear end portion to the inlet 12. Thereby, the air outside the heating cooker introduced into the cooking chamber 1 through the outside air inlet 10 and the opening 63 passes between the tray 16 and the bottom surface and between the back plate 11 and the partition 17 and is introduced into the inlet. 12, and between the saucer 16 and the bottom surface and between the back plate 11 and the partition 17 becomes the outside air conduction path 18, and the saucer 16 and the partition 17 are located in the cooking chamber 1 where the cooking object 9 is located. The partition wall 8 is divided into the roasting section 19 and the outside air conduction path 18.

  Hereinafter, the operation of the cooking device will be described. In order to roast the object 9 to be cooked, the door 6 is opened and the object 9 to be cooked is placed on the net part of the grill 15 so that it is accommodated in the cooking cabinet 1, and the upper heating means 14 and cooking / extinguishing are put on. The smoke combined heating means 20 and the air blowing means 51 are operated. The gas in the circulation path 5 is circulated by the blowing means 51, and heated air is generated in the smoke eliminator 2 by the cooking and smoke eliminating heating means 20. This heated air is used as hot air for roasting through the air guide path 4. It sends in the cooking chamber 1, and the to-be-cooked item 9 is heated. Smoke and odor components generated from the cooking object 9 heated in the cooking chamber 1 are introduced into the smoke eliminator 2 from the introduction port 12 together with the outside air taken in, and are baked by the cooking / smoke-removing heating means 20 to produce oily smoke. And odor components react with oxygen in the outside air to be purified, and oil smoke and odor components are greatly reduced. Since the inside of the cooking chamber 1 is divided into the outside air conduction path 18 and the roasting unit 19 by the partition wall 8, the smoke extinguishing unit without the low temperature outside air taken into the cooking chamber 1 coming into contact with the cooking object 9. Since it is led to 2, the food can be efficiently heated.

  A part of the heated air baked in the smoke extinguishing unit 2 is discharged from the discharge port 50 and the rest is led to the air guide path 4 through the outlet port 71, which corresponds to the part of the discharged amount. A quantity of outside air is taken from the outside air intake 10.

  A part of the hot air for roasting introduced into the right and left air guide passages 4 is jetted upward from the upper heated air jet 41 and is blown around the lower surfaces of the left and right ends of the net portion in a front view. Then, the vicinity of the left and right ends of the object 9 is heated. The remainder of the hot air for roasting is ejected downward from the heated air outlet 42 on the lower side, but since the specific gravity of the hot air ejected from the outlet 42 is smaller than the specific gravity of the surrounding air, the flow direction is gradually increased upward. By being deflected, it is injected around the lower surface of the central part of the net part in front view, and the vicinity of the central part of the object 9 to be cooked is heated. In this way, the upper heated air outlet 41 and the lower heated air outlet 42 prevent uneven baking in the left-right direction on the lower surface side of the object 9 to be cooked. In the present embodiment, the louver needs to be wiped clean because the ejection direction from the heated air ejection ports 41 and 42 is adjusted without providing a louver for adjusting the ejection direction from the heated air ejection ports 41 and 42, which will be described later. It is easy to clean.

  In addition, in the present embodiment, the upper heated air jet is a mixture of the heated air jet 41 whose jet direction is upward and the heated air jet 42 whose jet direction is downward in the longitudinal direction of the air guide path 4. A group of holes in which a plurality of small holes to be the outlet 41 are arranged in the front and back (five in this embodiment) and a plurality of small holes to be the lower heating air jets 42 in the front and rear (five in the present embodiment). A group of holes arranged side by side are arranged alternately in front and rear. Thereby, both the heated air outlet 41 with the upward spray direction and the heated air outlet 42 with the downward direction can be provided uniformly in the front-rear direction. Is prevented from occurring. The embodiment is an example in which the upward heated air outlet 41 and the downward heated air outlet 42 are mixed in the front-rear direction, and the upward heated air outlet 41 and the downward heated air outlet 42 are one by one. Alternatively, the heated air outlets 41 and the heated air outlets 42 may be alternately provided in two, three, four or more, or alternately in a non-regular number. There is no particular limitation.

  Moreover, the upper surface side of the to-be-cooked item 9 is mainly heated by radiant heat by the upper side heating means 14 which consists of a heating wire heater.

  Moreover, in this embodiment, the ventilation resistance of the exhaust duct 73 is adjusted so that the inside of the cooking chamber 1 becomes a negative pressure. That is, when the ventilation resistance of the exhaust duct 73 is large, the pressure at the discharge portion of the fan 52 is increased, so that the ventilation resistance of the passage of the exhaust duct 73 is not so large. By making the inside of the cooking chamber 1 into a negative pressure, the heated air ejected from the heated air ejection ports 41 and 42 and the oil smoke and odor components before being baked in the smoke eliminator 2 are prevented from leaking out of the cooking chamber 1. doing. Further, by adjusting the ventilation resistance of the exhaust duct 73, it is set so that the heating air of substantially the same amount as the amount of outside air required to burn and sufficiently reduce the smoke and odor components.

  In the present invention, the oily smoke and odorous components generated in the cooking chamber 1 are heated by the cooking / smoke and heating means 20 and purified by reacting with the introduced oxygen in the outside air, and then cooking from the outlet 50. Since it is discharged | emitted out of the store | warehouse | chamber 1, it is prevented that the room | chamber interior in which a cooking-by-heating machine is installed is soiled with oil smoke and an odor component. In addition, since the oil smoke and odor components can be decomposed and purified by the heating means for cooking the cooking object 9, it is not necessary to use a catalyst or another heating means for the decomposition of the oil smoke and odor components, and the structure is inexpensive. This makes it possible to smoke-free and bromide-free when cooking with a heating cooker.

  Further, since the air blowing means 51 for circulating the gas in the circulation path 5 is arranged on the downstream side of the smoke eliminating section 2, only the heated air that has been decomposed and purified by oil smoke and odor components is circulated by the air blowing means 51. Since the air blowing means 51 is not soiled by oily smoke or the like, there is no reduction in the air volume due to the dirt due to oil smoke or the like in the air blowing means 51, and there is no need for a cooking device such as uneven baking due to the air volume reduction. There is no performance deterioration and good cooking is possible over a long period of time.

  Moreover, in this embodiment, since the external air taken in into the cooking chamber 1 is taken in by the suction force of the air blowing means 51 and keeps the inside of the cooking chamber 1 at a negative pressure, heated air from the gap of the door 6 or the like to the outside of the cooking chamber 1. Leakage of oily smoke and odorous components is prevented.

  Moreover, although not shown in figure, you may make it adjust the ejection direction from a heating air ejection port by providing a louver in a heating air ejection port. Thereby, although the trouble of wiping and cleaning the louver is generated, it is not necessary to devise a way of forming the heated air outlet on the side wall of the air guide path 4 as in the above embodiment.

DESCRIPTION OF SYMBOLS 1 Cooking chamber 10 Outside air intake 12 Inlet 14 Upper heating means 15 Burning net 16 Saucepan 18 Outside air conduction path 2 Smoke extinguishing part 20 Cooking and smoke-removing heating means 3 Suction path 4 (4a, 4b) Air guide path 41 Upper side Heated air outlet 42 Lower heated air outlet 5 Circulation path 50 Discharge port 51 Blowing means 6 Door 63 Opening portion 7 Smoke extinguishing chamber 71 Outlet port 72 Opening 73 Exhaust duct 8 Bulkhead 9 Cooked food

Claims (3)

A cooking chamber for storing an object to be cooked, a smoke eliminator provided with a cooking / smoke-removing heating means, a suction passage for sending the gas in the cooking chamber to the smoke-removing part, and the cooking / smoke-removing heating means An air guide path for feeding heated air heated by the smoke extinguishing unit into the cooking chamber, and cooking from the cooking chamber via the suction path, the smoke extinguishing unit, and the air guiding path. Form a gas circulation path back into the chamber,
In the circulation path between the smoke extinguishing part and the air guide path, provided with a blowing means for circulating the gas in the circulation path,
An upper heating means is provided in the upper part of the cooking chamber, and a grill net is provided in the cooking chamber in which a net part on which the food is placed is placed above the bottom surface of the cooking chamber, So that the heated air is ejected from the air guide path to the lower side of the mesh part in the cooking chamber via the heated air ejection port,
In the air guide path, the heated air outlet and the heated air outlet in which the jet direction is downward and the heated air outlet in which the jet direction is downward are mixed in the longitudinal direction of the air guide path,
A discharge port for discharging a part of the heated air to the outside of the circulation path, and an outside air intake port for taking outside air into the cooking chamber,
The heated air sent from the air guide passage into the cooking chamber is used as hot air for roasting to heat the object to be cooked with the hot air for roasting, and the outside air taken in from the outside air intake is the smoke extinguishing unit And a part of the heated air flowing through the circulation path is discharged from the discharge port.   The inside of the cooking chamber is partitioned by a partition into an outside air conduction path that guides outside air taken in from the outside air intake port to the smoke eliminator, and a roasting portion where an object to be cooked is located. Cooking device. The cooking chamber has a front side opening, and a door is provided at the front opening so that the cooking chamber can be opened and closed. An introduction port for introducing the cooking chamber from the cooking chamber into the suction passage is provided at a rear portion of the cooking chamber. A saucer for receiving the broth or rice cake falling from the food to be cooked is provided at the lower part of the inside, the saucer forms a part of the partition, and the outside air intake is formed at the front part of the cooking chamber. The cooking device according to claim 2, wherein the outside air taken in from the intake port reaches the introduction port through the outside air conduction path formed on the lower side of the tray .

Images