WO2018146872A1 - Cuiseur à riz du type à pression - Google Patents

Cuiseur à riz du type à pression Download PDF

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Publication number
WO2018146872A1
WO2018146872A1 PCT/JP2017/039215 JP2017039215W WO2018146872A1 WO 2018146872 A1 WO2018146872 A1 WO 2018146872A1 JP 2017039215 W JP2017039215 W JP 2017039215W WO 2018146872 A1 WO2018146872 A1 WO 2018146872A1
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WIPO (PCT)
Prior art keywords
pressure
value
pan
pressure valve
moving mechanism
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Application number
PCT/JP2017/039215
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English (en)
Japanese (ja)
Inventor
大矢　弘
宏和 山地
裕輔 中山
慧 中須
知里 塚原
隆 梛木
Original Assignee
パナソニックＩｐマネジメント株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to CN201780084608.9A priority Critical patent/CN110248577A/zh
Publication of WO2018146872A1 publication Critical patent/WO2018146872A1/fr

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor

Definitions

  • This disclosure relates to a pressure rice cooker that cooks rice by pressurizing the pressure in the pan to atmospheric pressure or higher.
  • Patent Document 1 discloses a pressure rice cooker including a pressure valve that opens and closes a steam discharge hole and a pressure valve moving mechanism that adjusts the pressure in the pan by moving the pressure valve.
  • Patent Document 2 includes a pressure detection unit that detects the pressure in the pan, and is configured to switch on / off and a rotation direction of a stepping motor that moves the pressure valve according to a pressure value detected by the pressure detection unit.
  • a pressure rice cooker is disclosed.
  • a stepping motor when the pressure value which the pressure detection part detected is below a pressure lower limit value, a stepping motor is rotationally driven to a normal rotation direction, and a pressure valve is moved to the obstruction
  • the pressure valve for example, once the pressure valve is closed, the pressure valve is moved in the opening direction only when the pressure value detected by the pressure detector changes from the pressure lower limit value to the pressure upper limit value. Also, once the pressure valve is opened, the pressure valve is moved in the closing direction only when the pressure value detected by the pressure detector changes from the upper pressure limit value to the lower pressure limit value. For this reason, there exists a subject that the fluctuation
  • an object of the present disclosure is to provide a pressure cooker that can adjust the pressure in the pan more accurately.
  • a pressure rice cooker includes: A lid that is configured to open and close the opening of the pan, and is provided with a steam discharge hole for discharging the steam in the pan to the outside, A pressure detector configured to detect pressure in the pan; and In the boiling maintenance step for maintaining the boiling of the cooked product, a control unit configured to adjust the pressure in the pan to a target pressure value according to a detection result of the pressure detection unit, and The lid includes a pressure valve that moves between a closed position that closes the vapor discharge hole and an open position that opens, and a pressure valve moving mechanism that moves the pressure valve, In the boiling maintaining step, the control unit controls the pressure valve moving mechanism so that when the detection result is relatively close to the target pressure value, the pressure valve is more distant than when close to the target pressure value. Is moved at a slow speed.
  • the pressure in the pan can be adjusted more accurately.
  • FIG. 1 is a schematic cross-sectional view of a pressure rice cooker according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the pressure rice cooker of FIG.
  • FIG. 3 is a partially cutaway side view of the pressure rice cooker of FIG.
  • FIG. 4 is a plan view showing a state where parts on the upper outer member side of the outer lid are removed from the pressure rice cooker of FIG. 1.
  • FIG. 5 is an exploded perspective view showing some components of FIG.
  • FIG. 6 is a graph showing changes in temperature and pressure in the pan when an example of a rice cooking course is performed using the pressure rice cooker of FIG.
  • FIG. 7 is a graph showing the relationship between the pressure value detected by the pressure sensor unit in the pressure adjustment mode and the operating speed of the pressure valve moving mechanism.
  • FIG. 1 is a schematic cross-sectional view of a pressure rice cooker according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the pressure rice cooker of FIG.
  • FIG. 3 is a partially cutaway side
  • FIG. 8 is a graph which shows transition of the temperature and pressure in a pan when the other example of a rice cooking course is performed using the pressure type rice cooker of FIG.
  • FIG. 9 is a graph showing the relationship between the pressure value detected by the pressure sensor unit and the operating speed of the pressure valve moving mechanism when shifting from the pressure increase mode to the pressure adjustment mode.
  • FIG. 10 is a graph showing the relationship between the pressure value detected by the pressure sensor unit and the operating speed of the pressure valve moving mechanism when shifting from the step-down mode to the pressure adjustment mode.
  • a pan for storing the cooked food A lid that is configured to open and close the opening of the pan, and is provided with a steam discharge hole for discharging the steam in the pan to the outside, A pressure detector configured to detect pressure in the pan; and
  • a control unit configured to adjust the pressure in the pan to a target pressure value according to a detection result of the pressure detection unit, and
  • the lid includes a pressure valve that moves between a closed position that closes the vapor discharge hole and an open position that opens, and a pressure valve moving mechanism that moves the pressure valve,
  • the control unit controls the pressure valve moving mechanism so that when the detection result is relatively close to the target pressure value, the pressure valve is more distant than when close to the target pressure value.
  • a pressure rice cooker configured to move the rice at a slow speed.
  • the control unit moves the pressure valve moving mechanism to the first speed.
  • the pressure valve moving mechanism is operated at a second speed slower than the first speed.
  • a pressure upper limit value obtained by adding the threshold value to the target pressure value, and a pressure lower limit value obtained by subtracting the threshold value from the target pressure value are further set,
  • the pressure valve moving mechanism When the detection result is equal to or lower than the pressure lower limit value, the pressure valve moving mechanism is operated at the first speed so that the pressure valve moves to the closed position, When the detection result is between the target pressure value and the pressure lower limit value, the pressure valve moving mechanism is operated at the second speed so that the pressure valve moves to the closed position, When the detection result is between the target pressure value and the pressure upper limit value, the pressure valve moving mechanism is operated at the second speed so that the pressure valve moves to the open position, In the second aspect, the pressure valve moving mechanism is configured to operate at the first speed so that the pressure valve moves to the open position when the detection result is equal to or greater than the pressure upper limit value.
  • a pressure rice cooker is provided.
  • the control unit boosts the inside of the pan until the detection result rises from a value lower than the pressure lower limit value to the target pressure value in the boiling maintenance step.
  • the pressure-type rice cooker according to the third aspect which has a mode and is configured to shift from the pressure-up mode to the pressure-regulating mode when the detection result reaches the target pressure value in the pressure-up mode. Is provided.
  • the control unit lowers the pressure in the pan until the detection result falls from a value higher than the pressure upper limit value to the target pressure value.
  • the pressure according to the third or fourth aspect which has a mode and is configured to shift from the step-down mode to the pressure adjustment mode when the detection result reaches the target pressure value in the step-down mode.
  • a rice cooker is provided.
  • FIG. 1 is a schematic cross-sectional view of a pressure rice cooker according to an embodiment of the present disclosure.
  • FIG. 2 is a perspective view of the pressure rice cooker of FIG.
  • the pressure type rice cooker 100 which concerns on this embodiment is provided with the rice cooker main body 1, the pan 2, and the cover body.
  • the lid of this embodiment has an outer lid 3 and an inner lid 4.
  • the shape of the rice cooker body 1 is a bottomed, generally cylindrical shape having a bottom portion and side portions.
  • the rice cooker body 1 has an opening (hereinafter referred to as an upper opening) at the top.
  • an opening hereinafter referred to as an upper opening
  • a pot storage portion 1 a is formed inside the rice cooker body 1.
  • the pan 2 is stored in the pan storage section 1a.
  • the pan 2 has a bottom portion and a side portion.
  • the pan 2 has an upper opening.
  • a flange 2 a is formed around the opening of the pot 2.
  • the flange portion 2a protrudes in the horizontal direction toward the outside.
  • the pot 2 is filled with cooked items such as rice and water.
  • the outer lid 3 is disposed above the rice cooker body 1.
  • the outer lid 3 is attached so as to open and close the upper opening of the rice cooker body 1.
  • the outer lid 3 has a hollow structure.
  • An inner lid 4 is detachably attached to the inner side of the outer lid 3 (the side covering the upper opening of the pan 2).
  • the inner lid 4 is configured to seal the upper opening of the pan 2.
  • the shape of the inner lid 4 is a substantially disk shape.
  • the outer lid 3 and the inner lid 4 constitute a lid that opens and closes the upper opening of the pan 2.
  • the pot storage part 1a of the rice cooker body 1 is composed of an upper frame 1b and a coil base 1c.
  • the upper frame 1b has a cylindrical portion 1ba and a flange portion 1bb. Cylindrical part 1ba is arrange
  • the shape of the coil base 1c is a bottomed cylindrical shape having a bottom portion and a side portion, and is formed along the shape of the lower portion of the pan 2.
  • the upper part of the coil base 1c is attached to the lower end part of the cylindrical part 1ba of the upper frame 1b.
  • a pan bottom heating unit 5 is attached to the outer peripheral surface of the coil base 1c.
  • the pot bottom heating unit 5 is an example of a heating device that heats the pot 2 (induction heating).
  • the pan bottom heating unit 5 is composed of a bottom heating coil 5a and a bottom outside heating coil 5b.
  • the in-bottom heating coil 5a is disposed so as to face the periphery of the center of the bottom of the pan 2 via the coil base 1c.
  • Outer bottom heating coil 5b is arranged to face the corner portion of the bottom of pan 2 via coil base 1c.
  • an opening is provided in the central portion of the bottom of the coil base 1c.
  • a pan temperature sensor 6 is disposed in the opening.
  • the pan temperature sensor 6 is an example of a pan temperature detection unit for measuring the temperature of the pan 2.
  • the pan temperature sensor 6 is arrange
  • the outer lid 3 includes an upper outer member 3a and a lower outer member 3b.
  • the upper outer member 3 a and the lower outer member 3 b constitute an outer shell of the outer lid 3.
  • the outer lid 3 includes a hinge shaft 3A.
  • the hinge shaft 3A is an opening / closing shaft of the outer lid 3 parallel to the horizontal direction. Both end portions of the hinge shaft 3A are fixed to the upper frame 1b of the rice cooker body 1 so as to be rotatable.
  • a torsion coil spring 7 is attached around the hinge shaft 3A. The torsion coil spring 7 elastically urges the outer lid 3 in a direction (opening direction) away from the upper opening of the pan 2 around the hinge shaft 3A.
  • a lid opening device 8 is provided inside the outer lid 3.
  • the lid opening device 8 is engaged with a part of the rice cooker main body 1 to maintain a state where the outer lid 3 blocks the upper opening of the pan 2.
  • the lid opening device 8 is when the lid button 81 (see FIG. 2) provided on the rice cooker body 1 or the outer lid 3 is pressed while the outer lid 3 closes the upper opening of the pan 2. Rotate in the direction of arrow A1 about the hook shaft 8A.
  • the engagement between the lid opening device 8 and a part of the rice cooker body 1 is released, and the outer lid 3 is separated from the upper opening of the pan 2 around the hinge shaft 3 ⁇ / b> A by the biasing force of the torsion coil spring 7. Rotate to.
  • the outer lid 3 is in an “open state” in which the upper opening of the pan 2 is not blocked.
  • the outer lid 3 is configured to stop the rotation when rotated 90 degrees around the hinge shaft 3A from the position where the upper opening of the pan 2 is closed.
  • a recess 3d is provided on the upper surface of the upper outer member 3a and in the vicinity of the hinge shaft 3A.
  • a steam cylinder 9 is detachably attached to the recess 3d.
  • a steam escape hole 3da is provided at the bottom of the recess 3d so that excess steam in the pan 2 can be discharged toward the steam cylinder 9.
  • a steam escape hole 9 a is provided on the upper wall of the steam cylinder 9 so that excess steam in the pan 2 can be discharged to the outside of the pressure rice cooker 100.
  • the inner lid 4 is provided with a steam discharge hole 4a for discharging the steam in the pan 2 and a steam discharge hole 4b for communicating the inside of the pan 2 and the lid body.
  • the diameter of the steam discharge hole 4b is larger than the diameter of the steam discharge hole 4a, and is set to be twice or more the diameter of the steam discharge hole 4a, for example.
  • the diameter of the steam discharge hole 4a is, for example, 4 mm, and the diameter of the steam discharge hole 4b is, for example, 10 mm.
  • the inner lid 4 is provided with a pressure suppression valve 10 configured to open and close the steam discharge hole 4a and a pressure valve 11 configured to open and close the steam discharge hole 4b.
  • the pressure suppression valve 10 is a valve that suppresses the pressure in the pan 2 from rising to a predetermined value (for example, 1.2 atmospheres) higher than the atmospheric pressure.
  • the pressure suppression valve 10 includes a ball. The ball closes the steam discharge hole 4a by its own weight.
  • the pressure suppression valve 10 is pushed by the pressure in the pan 2 and is separated from the steam discharge hole 4a. The steam discharge hole 4a is opened.
  • the pressure valve 11 is configured to move between a closed position and an open position by a pressure valve moving mechanism 12 described later.
  • the closing position is a position for closing the steam discharge hole 4b.
  • the open position is a position where the steam discharge hole 4b is opened.
  • FIG. 1 shows a state in which the pressure valve 11 is in the closed position.
  • the outer lid 3 is provided with the pressure valve moving mechanism 12 as described above.
  • the pressure valve moving mechanism 12 is configured to hold the pressure valve 11 in the closed position in the state shown in FIG. Thereby, the pressure in the pan 2 can be increased (for example, increased from 1.0 atm to 1.2 atm).
  • the pressure valve moving mechanism 12 presses the pressure valve 11 under the control of the control unit 14 to be described later at a predetermined timing when the pressure in the pan 2 becomes a predetermined value (for example, 1.2 atmospheres) or more.
  • the pressure valve moving mechanism 12 is configured to move the pressure valve 11 from the closed position to the open position. Thereby, the pressure in the pan 2 can be reduced (for example, reduced from 1.2 atm to 1.0 atm).
  • the specific configuration of the pressure valve moving mechanism 12 is the same as, for example, Patent Document 1 and will be described later.
  • the outer lid 3 is provided with a display operation unit 13.
  • the display operation part 13 displays various information, such as a rice cooking course and rice cooking time. Moreover, the display operation part 13 receives selection of the specific rice cooking course from several rice cooking courses.
  • the plurality of rice cooking courses are, for example, a white rice course, a brown rice course, and a white rice (softer) course, and are registered in the pressure rice cooker 100 in advance.
  • the display operation unit 13 includes a liquid crystal display 13A and a plurality of buttons 13B.
  • the liquid crystal display 13A displays various information such as a rice cooking course and a rice cooking time.
  • the plurality of buttons 13 ⁇ / b> B accepts instructions for starting, canceling, and making a reservation for cooking, in addition to selecting a rice cooking course.
  • the user can select a specific rice cooking course with a plurality of buttons 13B and instruct the start of rice cooking while referring to various information displayed on the liquid crystal display 13A.
  • the control unit 14 includes a storage unit.
  • the storage unit stores a plurality of rice cooking sequences for cooking rice.
  • the “rice cooking sequence” refers to a predetermined rice cooking procedure when the four steps of preheating, temperature rising, boiling maintenance, and steaming are performed in order. This procedure for cooking includes energization time, heating temperature, heating time, heating output, and the like in each step.
  • Each rice cooking sequence corresponds to one of a plurality of rice cooking courses.
  • the control unit 14 controls the pan bottom heating unit 5 and the pressure valve moving mechanism 12 based on the rice cooking course received by the display operation unit 13 and the detected temperature of the pan temperature sensor 6, and executes the rice cooking course.
  • FIG. 3 is a partially cutaway side view of the pressure rice cooker 100 of FIG.
  • FIG. 4 is a plan view showing a state where parts on the upper outer member 3a side of the outer lid 3 are removed from the pressure rice cooker 100 of FIG.
  • FIG. 5 is an exploded perspective view showing some components of FIG.
  • the outer lid 3 has a built-in pressure sensor unit 21 that is an example of a pressure detection unit that detects the pressure in the pan 2. More specifically, the pressure sensor unit 21 is attached to the lower outline member 3 b of the outer lid 3.
  • the pressure sensor unit 21 includes a pressure sensor composed of a piezoelectric element or the like. The pressure sensor unit 21 detects pressure and outputs a detection result (that is, a pressure value) to the control unit 14.
  • a through hole 3 c is provided in the lower outer member 3 b of the outer lid 3 at the attachment position of the pressure sensor unit 21.
  • the inner lid 4 is provided with a through hole 4c.
  • the through hole 4 c is provided at a position facing the through hole 3 c when the inner lid 4 is attached to the lower outer member 3 b of the outer lid 3.
  • the pressure sensor unit 21 communicates with the inside of the pan 2 through the through hole 4c and the through hole 3c, and detects the pressure in the pan 2.
  • FIG. 1 shows the pressure valve moving mechanism 12 when the pressure valve 11 is in the closed position.
  • the pressure valve moving mechanism 12 includes a spring 122, a lever 125, gears 126 and 127, and a motor.
  • the motor rotates the gears 126 and 127 to drive the lever 125 in the left-right direction in FIG.
  • the lower surface of the lever 125 has a horizontal surface 125a and an inclined surface 125b.
  • the lower surface (horizontal surface 125 a and inclined surface 125 b) of the lever 125 is disposed so as to contact the spring 122.
  • the lower surface of the spring 122 is in contact with the pressure valve 11.
  • FIG. 6 is a graph showing changes in temperature and pressure in the pan 2 when an example of a rice cooking course is performed using the pressure rice cooker 100 according to the present embodiment.
  • the user sets the pan 2 in which the food to be cooked including rice and water is placed in the pan storage portion 1a. Then, after a desired rice cooking course is selected from a plurality of rice cooking courses by the display operation unit 13 by the user, when the start of rice cooking is instructed, the selected rice cooking course is started under the control of the control unit 14. The When the rice cooking course is started, first, the preheating process is started.
  • the preheating step is a step of immersing the rice in water at a temperature lower than the gelatinization temperature so that the rice can be sufficiently gelatinized in the subsequent steps, and allowing the rice to absorb water in advance.
  • the control unit 14 raises the temperature of the water in the pot 2 to a temperature close to the temperature at which rice gelatinization begins (about 50 ° C.).
  • the control unit 14 controls the pot heating operation of the pot bottom heating unit 5 based on the temperature detected by the pot temperature sensor 6 so as to maintain the temperature after the temperature increase.
  • the control unit 14 controls the pressure valve moving mechanism 12 so that the pressure valve 11 is held at the closed position during the preheating process. If the time preset according to the selected rice cooking course passes from the start of a preheating process, it will transfer to a temperature rising process.
  • the temperature raising process is a process in which the pot 2 is heated at a stretch with high heat to bring the water in the pot 2 to a boiling state.
  • the control unit 14 controls the pan bottom heating unit 5 so as to rapidly heat the pan 2 and bring the water in the pan 2 to a boiling state. Further, the control unit 14 controls the pressure valve moving mechanism 12 so that the pressure valve 11 is held at the closed position during the temperature raising process.
  • the process proceeds to the boiling maintaining step.
  • the boiling maintaining step is a step of maintaining the boiling state of the water in the pan 2 to gelatinize the rice starch and raising the gelatinization degree to about 50% to 80%.
  • the control unit 14 controls the pan bottom heating unit 5 and the pressure valve moving mechanism 12 so as to maintain the boiling state of the water in the pan 2.
  • the control unit 14 In the initial stage of the boiling maintenance process, the control unit 14 operates in the boost mode. In the pressure increase mode, the control unit 14 continues to hold the pressure valve 11 at the closed position by the pressure valve moving mechanism 12, thereby increasing the pressure in the pan 2 (for example, increasing from 0 kPa to 20 kPa). By this pressure increase mode, the boiling point of the water in the pan 2 is increased (for example, about 105 ° C.).
  • control unit 14 controls the pressure valve moving mechanism 12 to shift to a pressure adjustment mode in which the pressure in the pan 2 is adjusted to the target pressure.
  • a pressure adjustment mode in which the pressure in the pan 2 is adjusted to the target pressure.
  • the control unit 14 sets a target pressure value.
  • the control unit 14 changes the operating speed of the pressure valve moving mechanism 12 based on whether or not the difference between the pressure value output from the pressure sensor unit 21 and the target pressure value is smaller than a threshold value. .
  • FIG. 7 is a graph showing the relationship between the pressure value detected by the pressure sensor unit 21 in the pressure adjustment mode and the operating speed of the pressure valve moving mechanism 12.
  • the control unit 14 sets the target pressure value PTEP, the pressure upper limit value PMAX, and the pressure lower limit value PMIN.
  • a value obtained by adding a threshold value (for example, 1 kPa) to the target pressure value PTEP is set as a pressure upper limit value PMAX
  • a value obtained by subtracting the threshold value (for example, 1 kPa) from the target pressure value PTEP is set as a pressure lower limit value PMIN.
  • the control unit 14 moves the pressure valve so that the pressure valve 11 moves to the closed position when the pressure value detected by the pressure sensor unit 21 is equal to or lower than the pressure lower limit value PMIN.
  • the mechanism 12 is operated at a high speed which is the first speed.
  • the control unit 14 controls the pressure valve moving mechanism 12 so that the pressure valve 11 moves to the closed position when the pressure value detected by the pressure sensor unit 21 is between the target pressure value PTEP and the pressure lower limit value PMIN. It is operated at a low speed which is the second speed. The second speed is slower than the first speed.
  • control unit 14 controls the pressure valve moving mechanism 12 so that the pressure valve 11 moves to the open position when the pressure value detected by the pressure sensor unit 21 is between the target pressure value PTEP and the pressure upper limit value PMAX. Operate at low speed. Furthermore, when the pressure value detected by the pressure sensor unit 21 is equal to or higher than the pressure upper limit value PMAX, the control unit 14 operates the pressure valve moving mechanism 12 at a high speed so that the pressure valve 11 moves to the open position. As described above, the control unit 14 controls the operation of the pressure valve moving mechanism 12 so that the pressure value detected by the pressure sensor unit 21 converges so as to be closer to the target pressure value PTEP. Thereby, the pressure in the pan 2 can be adjusted more accurately.
  • the boiling maintenance step a large amount of steam is generated because water is continuously boiled.
  • the steam passes through the steam discharge hole 4a, the steam discharge hole 4b, the steam escape holes 3da, 9a, and the like and is discharged to the outside of the pressure rice cooker 100.
  • the temperature detected by the pan temperature sensor 6 reaches a predetermined temperature not lower than the boiling point (for example, 130 ° C.), the steaming process is started.
  • the steaming process is a process of evaporating excess water using preheating and raising the degree of gelatinization of the rice to nearly 100%.
  • the control unit 14 controls the pressure valve moving mechanism 12 so as to move the pressure valve 11 from the closed position to the open position. Thereby, the inside of the pan 2 is depressurized to substantially atmospheric pressure.
  • the control unit 14 ends the steaming process (that is, ends the rice cooking course).
  • the control unit 14 controls the pressure valve moving mechanism 12 in the boiling maintenance step, and when the detection result is close to the target pressure value, than when it is far. Is also configured to move the pressure valve 11 at a slow speed. Thereby, even if there is a time lag between the operation of the pressure valve moving mechanism 12 for moving the pressure valve 11 and the change in the pressure in the pan 2, the pressure in the pan 2 is converged so as to approach the target pressure value PTEP sooner. be able to. Therefore, the pressure in the pan 2 can be adjusted with higher accuracy.
  • “when close” means when the target pressure value is relatively closer than when “distant”.
  • “when far” refers to a time far from the target pressure value than when “close”.
  • control unit 14 operates in the pressure regulation mode in the boiling maintenance process.
  • the control unit 14 changes the operating speed of the pressure valve moving mechanism 12 based on whether or not the difference between the detection result (pressure value) of the pressure sensor unit 21 and the target pressure value PTEP is smaller than a threshold value. Let Thereby, the pressure in the pan 2 can be converged so as to approach the target pressure value PTEP earlier. Therefore, the pressure in the pan 2 can be adjusted with higher accuracy.
  • the control unit 14 is moved to the pressure adjustment mode after the pressure increase mode until the boiling maintenance step is completed, but the present disclosure is not limited thereto.
  • the control part 14 may reduce target pressure value PTEP (for example, 10 kPa) in the middle of pressure regulation mode, and may transfer to pressure
  • target pressure value PTEP for example, 10 kPa
  • control unit 14 reduces the pressure in the pan 2 by continuously holding the pressure valve 11 in the open position by the pressure valve moving mechanism 12. Thereby, while increasing the sweetness of rice, the excessive stickiness of rice can be suppressed and a taste can be improved.
  • the control unit 14 becomes the target pressure value PTEP in the pressure increasing mode in which the pressure value detected by the pressure sensor unit 21 is increased from a value lower than the pressure lower limit value PMIN to the target pressure value PTEP. It is preferable to control so as to shift to the pressure adjustment mode. Thereby, it can suppress that the pressure value which the pressure sensor unit 21 detects exceeds pressure upper limit PMAX, and can converge the pressure in the pan 2 so that it may approach target pressure value PTEP earlier. . Therefore, the pressure in the pan 2 can be adjusted with higher accuracy.
  • the control unit 14 becomes the target pressure value PTEP in the step-down mode in which the pressure value detected by the pressure sensor unit 21 is lowered from a value higher than the pressure upper limit value PMAX to the target pressure value PTEP. It is preferable to control so as to shift to the pressure adjustment mode. Thereby, it can suppress that the pressure value which the pressure sensor unit 21 detects exceeds the pressure lower limit PMIN, and it can be made to converge so that the pressure in the pan 2 may approach the target pressure value PTEP earlier. . Therefore, the pressure in the pan 2 can be adjusted with higher accuracy.
  • control unit 14 operates in at least one of the step-up mode and the step-down mode in addition to the pressure adjustment mode in the boiling maintenance process. It is not limited.
  • control unit 14 may operate in at least one mode of the pressure increase mode, the pressure adjustment mode, and the pressure decrease mode in another rice cooking course such as a steaming process.
  • the configuration of FIG. 1 is illustrated as the pressure valve moving mechanism 12. That is, the pressure valve moving mechanism 12 of this embodiment is configured to open and close the pressure valve 11 by moving in the horizontal direction. However, for example, the pressure valve moving mechanism 12 may be configured to move the pressure valve 11 between an open position and a closed position by rotating around an axis. In addition, the open position and the closed position of the pressure valve 11 of this embodiment are merely examples, and can be changed according to the location or configuration of the steam discharge hole 4b.
  • pressure type rice cooker can adjust the pressure in the pan more accurately, for example, household and commercial pressure type rice cookers that are required to cook rice with less uneven cooking. Useful for.

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Abstract

L'invention concerne un cuiseur à riz du type à pression qui comprend : une marmite ; un couvercle pourvu d'un trou d'évacuation de vapeur ; une unité de détection de pression ; et une unité de commande. Le couvercle comprend : une soupape de pression qui se déplace entre une position bloquée dans laquelle le trou d'évacuation de vapeur est bloqué et une position ouverte dans laquelle le trou est ouvert ; et un mécanisme de déplacement de soupape de pression qui amène la soupape de pression à se déplacer. L'unité de commande, lors d'une étape de maintien d'ébullition, commande le mécanisme de déplacement de soupape de pression, et lorsque des résultats de détection sont proches d'une valeur de pression cible, l'unité de commande amène la soupape de pression à se déplacer à une vitesse plus lente que lorsque de tels résultats sont loin de la valeur de pression cible.
PCT/JP2017/039215 2017-02-07 2017-10-31 Cuiseur à riz du type à pression WO2018146872A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201780084608.9A CN110248577A (zh) 2017-02-07 2017-10-31 压力式煮饭器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-020521 2017-02-07
JP2017020521A JP2018126267A (ja) 2017-02-07 2017-02-07 圧力式炊飯器

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Publication Number Publication Date
WO2018146872A1 true WO2018146872A1 (fr) 2018-08-16

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JP (1) JP2018126267A (fr)
CN (1) CN110248577A (fr)
WO (1) WO2018146872A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
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