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CN108135379A - Heating device and lid - Google Patents

Heating device and lid Download PDF

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Publication number
CN108135379A
CN108135379A CN201580081926.0A CN201580081926A CN108135379A CN 108135379 A CN108135379 A CN 108135379A CN 201580081926 A CN201580081926 A CN 201580081926A CN 108135379 A CN108135379 A CN 108135379A
Authority
CN
China
Prior art keywords
cooking
vessel
heating device
pressure
steam
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201580081926.0A
Other languages
Chinese (zh)
Other versions
CN108135379B (en
Inventor
石原杏子
永田滋之
伊藤千寻
小布施智朗
小池洋
吉田刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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.)
Filing date
Publication date
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Publication of CN108135379A publication Critical patent/CN108135379A/en
Application granted granted Critical
Publication of CN108135379B publication Critical patent/CN108135379B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/086Pressure-cookers; Lids or locking devices specially adapted therefor with built-in heating means
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/08Pressure-cookers; Lids or locking devices specially adapted therefor
    • A47J27/09Safety devices
    • A47J27/092Devices for automatically releasing pressure before opening
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00Parts, details or accessories of cooking-vessels
    • A47J36/06Lids or covers for cooking-vessels
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S220/00Receptacles
    • Y10S220/912Cookware, i.e. pots and pans

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)

Abstract

Heating device (1) has:Cooking-vessel (11), with opening portion (11a);As the inner cover (21) of cover, occlusion of openings portion (11a);Compression zone (32) is movably set to inner cover (21) and correspondingly carries out displacement with the pressure of the inside (11e) of cooking-vessel (11);And the steam discharge valve (31) as spool, it is movable that it is disposed relative to inner cover (21), has the steam outlet (21a) that the inside (11e) of cooking-vessel (11) is made to be connected with outside in inner cover (21), the opening area of steam outlet (21a) is adjusted by steam discharge valve (31), correspondingly, the opening area of steam outlet (21a) gradually increases for displacement with the compression zone (32) in the reduced pressure treatment of the inside (11e) of cooking-vessel (11).

Description

Heating device and lid
Technical field
The present invention relates to the decompressions of heating device and its lid, the more particularly to inside of cooking-vessel.
Background technology
In the past, have and adjust relevant various carry with the internal pressure of the cooking-vessel in the heating devices such as electric pressure rice cooker Case.For example, patent document 1 proposes a kind of heating device (electric pressure rice cooker), which has:Hold as cooking The rice cooker of device, the cover of rice cooker, the inside and the first exhaust access that connects of outside that make rice cooker and second exhaust access, It occludes the first spool of first exhaust access, the second spool of occlusion second exhaust access and is controlled by on-off and distinguished Make the first driving part and the second driving part (solenoid) that the first spool and the second spool act.
Citation
Patent document
Patent document 1:Japanese Unexamined Patent Publication 2009-82755 bulletins (such as Fig. 1, abstract, claim 1)
Invention content
The subject that the invention solves
However, since above-mentioned previous heating device will be set to exhaust channel (first exhaust access and second exhaust Access) spool (the first spool and the second spool) be switched to and switch on and off (opening state and closed state both states) In any one, so the velocity of discharge (discharge rate per unit time) of steam can not be made as constant.Accordingly, there exist as follows Problem:Exhaust channel (being in an open state spool switching) is opened when if the pressure in the inside of cooking-vessel is high, in opening Steam is released at once with the strong impetus from exhaust channel afterwards, and it is possible to bring sense of discomfort (such as scaring or frightened to user Sense).In addition, exhaust channel to be formed as to the access with smaller opening area in order not to bring sense of discomfort to user In the case of, since the velocity of discharge of steam is slow, so in the presence of can not in a short time (i.e. promptly) will be in cooking-vessel Depressurize this problem in portion.
The present invention makes to solve the subject of the above-mentioned prior art, can be in a short time its purpose is to provide one kind Carry out heating device and its cover of the decompression inside cooking-vessel without bringing sense of discomfort to user.
Solution for solving the problem
The heating device of the present invention is characterized in that having:Cooking-vessel, the cooking-vessel have opening portion;Lid Body, the cover block the opening portion;Compression zone, the compression zone are movably set to the cover, and with the cooking The pressure of the inside of container correspondingly carries out displacement;And spool, it is movable that the spool is disposed relative to the cover, in institute Any one stated in cover and the compression zone has the inside for making the cooking-vessel and the external steam outlet connected, institute The opening area for stating steam outlet is adjusted by the spool, in the reduced pressure treatment of the inside of the cooking-vessel described in by Correspondingly, the opening area gradually increases for the displacement of splenium.
The lid of the present invention is characterized in that having:Cover, the cover block the described of the cooking-vessel with opening portion Opening portion;Compression zone, the compression zone are movably set to the cover, and corresponding to the pressure of the inside of the cooking-vessel Ground carries out displacement;And spool, it is movable that the spool is disposed relative to the cover, in the cover and the compression zone Any one have the inside for making the cooking-vessel and the external steam outlet connected, the opening face of the steam outlet Product adjusted by the spool, the displacement with the compression zone in the reduced pressure treatment of the inside of the cooking-vessel correspondingly, institute Opening area is stated to gradually increase.
The effect of invention
In accordance with the invention it is possible to the decompression inside progress cooking-vessel to user without bringing discomfort in a short time Sense.
Description of the drawings
Fig. 1 is construction (the locking shape of steam discharge valve for the heating device for roughly showing embodiments of the present invention 1 State) longitudinal section view.
Fig. 2 is construction (the locking solution of steam discharge valve for the major part for roughly showing heating device shown in FIG. 1 Except state) longitudinal section view.
Fig. 3 is the figure of an example of the structure for the control system for roughly showing heating device shown in FIG. 1.
Fig. 4 (a) and Fig. 4 (b) is the steam discharge valve, compression zone and company for roughly showing heating device shown in FIG. 1 The definition graph of an example of the action of linkage.
Fig. 5 (a) to Fig. 5 (d) is show steam discharging operation in the reduced pressure treatment of heating device shown in FIG. 1 one The time diagram (timing chart) of example.
Fig. 6 is the steam discharge unit that the cover for the heating device for roughly showing embodiments of the present invention 2 has Construction when atmospheric pressure (pressure of the inside of cooking-vessel be equal to) longitudinal section view.
Fig. 7 (a) and Fig. 7 (b) is the steam discharge in the heat treatment for the heating device for roughly showing embodiment 2 The longitudinal section view of the steam discharging operation (pressure regulation action) in portion.
Fig. 8 (a) and Fig. 8 (b) is the steam discharge in the reduced pressure treatment for the heating device for roughly showing embodiment 2 The longitudinal section view of the steam discharging operation (decompression action) in portion.
Fig. 9 is the part of the construction of the steam discharge unit of the heating device for the variation for roughly showing embodiment 2 Perspective cut-away view.
Figure 10 (a) and Figure 10 (b) be the action for the steam discharge unit for showing heating device shown in Fig. 9 side view and Sectional view.
Specific embodiment
《1》Embodiment 1
《1-1》Structure
Fig. 1 is the construction (lock of steam discharge valve 31 for the heating device 1 for roughly showing embodiments of the present invention 1 Determine state) longitudinal section view.In addition, the construction that Fig. 2 is the major part for roughly showing heating device 1 shown in FIG. 1 (steams The test section of the latch-release state of vapour dump valve 31) longitudinal section view.Heating device 1 is for example also referred to as electric pressure rice cooker, pressure is cooked Device, pressure cooker and heated pressure cooking device.
As shown in Figures 1 and 2, as main inscape, heating device 1 has cooking-vessel (cooker) 11, The cooking-vessel 11 is the pot shape container for having opening portion 11a.In addition, heating device 1 has the inner cover 21 as cover, The inner cover 21 has and makes what the inside 11e space of heating object (receiving) of cooking-vessel 11 was connected with outside (airspace) Steam outlet (intercommunicating pore) 21a, and the opening portion 11a of cooking-vessel 11 is blocked.In addition, heating device 1 has compression Portion 32 and the steam discharge valve 31 as spool, the compression zone 32 be movably set to inner cover 21 and in cooking-vessel 11 The pressure of portion 11e correspondingly carries out displacement (movement), and the steam discharge valve 31 is disposed relative to inner cover 21 movably and adjusts The opening area of steam outlet 21a.Herein, the displacement of compression zone 32 for example can be to be not accompanied by the movement (translation) of deformation And any one of movement (flexible) along with deformation.In Fig. 1 and example shown in Fig. 2, compression zone 32 is by guide hole Corrugated member (the telescoping member or elastic component) formation of 21b intrinsic displacements, the guide hole 21b are formed at the company of inner cover 21 Through-hole.The inside 11e of cooking-vessel 11 is isolated from the outside by compression zone 32 in guide hole 21b, when the inside of cooking-vessel 11 When the pressure of 11e rises, the corrugated member extension of compression zone 32 is formed, and makes compression zone 32 along the inner wall of guide hole 21b Top rise.In addition, heating device 1 has link mechanism 33, the inside 11e of the link mechanism 33 and cooking-vessel 11 Reduced pressure treatment in the displacement (being moved along the inner wall of guide hole 21b) of compression zone 32 correspondingly make steam discharge valve 31 It moves (in fig. 2, moving in the up-down direction), so that the opening area of steam outlet 21a gradually increases.In general, it cooks The reduced pressure treatment of the inside 11e of capacity transfer device 11 after the heat treatment for the cooking and user open inner cover 21 (usually with Aftermentioned outer cover 24 opens inner cover 21 together) before carry out.It is further preferred, that steam discharge valve 31 be, for example, tend to front end and The needle-valve to attenuate.The lid of the present invention has the inner cover 21 as cover, compression zone 32 and the steam discharge valve 31 as spool.
In addition, heating device 1 can also have structure described below.As shown in Figures 1 and 2, heating device 1 has Standby apparatus main body 12 and the container cover 13 being fixed in apparatus main body 12.Cooking-vessel 11 is detachably housed in container cover 13 It is interior.In addition, heating device 1 can have heating coil 14 as heating heating part of the configuration in 13 outside of container cover. Heating coil 14 is for example spirally wound, to 14 supply high frequency electric current of heating coil.Cooking-vessel 11, which utilizes, senses electric current Fever, the induced electricity stream are generated by the electromagnetic induction of heating coil 14.
Heating device 1 can have:It is arranged to penetrate through the cooking bottom temperature sensor 15 of hole portion 13a, above pushes away cooking bottom temperature The compressed spring 16 of the lower surface of sensor 15 and be set to apparatus main body 12 outer wall operation display part 17, the hole portion 13a is formed in the middle position of the bottom of container cover 13.It is further preferred, that have on the outside of the side wall of cooking-vessel 11 Handle portion 11c.It is further preferred, that container cover 13 is formed as:Between cooking-vessel 11 and container cover 13 formed for finger into Enter the gap of this degree.Also, cooking-vessel 11 can be at an upper portion thereof edge have flange 11b.On flange 11b for example It is provided with multiple notch.But, apparatus main body 12, container cover 13, heating coil 14, the shape of cooking-vessel 11 and configuration, And the mode of heating of heating coil 14 is not limited to above-mentioned example.In addition, the present invention can also apply to do not have heating part The device (such as pressure cooker) of (such as heating coil 14).In this case, cooking-vessel 11 is utilized and is detached with heating device 1 Heating unit heated.Also, the present invention can also apply to the cover (inner cover) of pressure cooker (pressure cooker).
It is further preferred, that the peripheral part of the inner cover 21 in heating device 1, such as have as annular seal Lid sealing ring 22.Using lid sealing ring 22, the flange 11b of cooking-vessel 11 and the inner surface 11d and inner cover of side wall can be improved 21 leakproofness.It is further preferred, that in heating device 1, has locking ring 23 to clamp inner cover 21 and cooking-vessel 11 flange 11b.User can make the cooking by carrying out the operation for locking ring 23 to be made to be rotated up in the week of flange 11b The notch (not shown) of the flange 11b of container 11 engages with locking ring 23 and locking ring 23 is fixed on flange 11b.Pass through lock Determine the fixation of ring 23, the opening portion 11a of cooking-vessel 11 is sealed securely by inner cover 21.But hold the cooking using inner cover 21 The mechanism that the opening portion 11a of device 11 is sealed securely can also be flange 11b and the mechanism other than the combination of locking ring 23.
In addition, in Fig. 1 and example shown in Fig. 2, heating device 1 has outer cover 24, and the outer cover 24 covers inner cover 21 and locking ring 23 and be opened and closed freely engaging in apparatus main body 12.Outer cover 24 has the outer of the through hole as perforation outer cover 24 Portion steam port 24a.Therefore, the inside 11e of cooking-vessel 11 can via steam outlet 21a or pressure regulation steam port 21c and External steam mouth 24a is connected with external (airspace), and the pressure regulation steam port 21c is formed at the intercommunicating pore of inner cover 21.
On pressure regulation steam port 21c, has pressure limiting hammer (Japanese:Hammer) 35 to block pressure regulation steam port 21c.Pressure limiting hammers 35 into shape Sphere in this way, as long as but pressure limiting hammer 35 shape can occlude pressure regulation steam port 21c opening shape, be not limited to Sphere.Preferably, in order to improve leakproofness, between steam outlet 21a and steam discharge valve 31 and in pressure regulation steam Between mouth 21c and pressure limiting hammer 35, has sealing ring respectively.In general, it is carried out by discharging steam from pressure regulation steam port 21c The pressure adjusting of inside 11e of cooking-vessel 11 carried out in the heat treatment for the cooking, steam is from steam outlet 21a Discharge reduced pressure treatment after a heating treatment in carry out.
In addition, in Fig. 1 and example shown in Fig. 2, heating device 1 has the decompression beginning portion 34 as switching part, The decompression beginning portion 34 is switched to any one of lock-out state and test section of the latch-release state state, and the lock-out state is will to set The steam discharge valve 31 for being placed in steam outlet 21a is set as immovable state, the test section of the latch-release state under blocked state It is that steam discharge valve 31 is set as movable state.In the locked state, as shown in Figure 1, the decompression being made of solenoid etc. is opened The abutting member 34a in beginning portion 34 is abutted, and will be pushed away under steam discharge valve 31 with the top of steam discharge valve 31, so as to which steam is discharged Valve 31 occludes steam outlet 21a.Under test section of the latch-release state, as shown in Fig. 2, the abutting member 34a in decompression beginning portion 34 from The top of steam discharge valve 31 is left, and does not limit the displacement of steam discharge valve 31.
Link mechanism 33 is corresponding to pressure reduction, compression zone 32 the displacement of the inside 11e along with cooking-vessel 11 Ground makes 31 displacement of steam discharge valve, so that the opening area of steam outlet 21a gradually increases.Link mechanism 33 and cooking-vessel The displacement of compression zone 32 in the reduced pressure treatment (during decompression) of 11 inside 11e correspondingly, makes the opening of steam outlet 21a Area gradually increases.In Fig. 1 and example shown in Fig. 2, link mechanism 33 has link rod part (rod member) 33b, the company Bar portion 33b centered on fulcrum (fulcrum) 33a for being set to inner cover 21 to be swung, and link rod part 33b has and steam discharge valve The first end (position) of 31 connections and the second end (force) linked with compression zone 32.But the structure of link mechanism 33 It makes and is not limited to Fig. 1 and example shown in Fig. 2.
Can have the lid temperature sensor 36 as test section on outer cover 24, the lid temperature sensor 36 is used to examine Survey the temperature in cooking-vessel 11.The through hole 21d and lid temperature sensor 36 of inner cover 21 are for example by lid temperature sensor 36 periphery has sealing ring, can improve the leakproofness of the inside 11e of cooking-vessel 11.Lid temperature sensor 36 can lead to Cross the temperature of the heating object (food materials, water etc.) of the inside 11e of the through hole 21d detection cooking-vessels 11 of inner cover 21.
《1-2》Action
Fig. 3 is the figure of an example of the structure for the control system for roughly showing heating device 1.In addition, Fig. 4 (a) and Fig. 4 (b) it is saying for an example of the action of steam discharge valve 31, compression zone 32 and link mechanism 33 that roughly shows heating device 1 Bright figure.In addition, Fig. 5 (a) to Fig. 5 (d) be show the steam discharging operation in the reduced pressure treatment of heating device 1 an example when Between scheme.Since Fig. 4 (a) and Fig. 4 (b) show the action of the steam discharge valve 31 under test section of the latch-release state shown in Fig. 2, so In Fig. 4 (a) and Fig. 4 (b), pair inscape mark corresponding with inscape shown in Fig. 2 and reference numeral phase shown in Fig. 2 Same reference numeral.In addition, in Fig. 4 (a) and Fig. 4 (b), as unshowned structure in fig. 2, show as elastic structure The helical spring 37 of part, the helical spring 37 provide the power on the direction for above pushing away steam discharge valve 31 to steam discharge valve 31. Helical spring 37 be arbitrary structure, when the inside 11e in cooking-vessel 11 be atmospheric pressure when compression zone 32 due to dead weight and under In the case of drop, do not need to have helical spring 37.
When starting to cook using heating device 1, the heating objects such as food materials, water are put into cooking-vessel 11 by user, Cooking-vessel 11 is positioned in container cover 13, later, closes outer cover 24.When closing outer cover 24, the lid sealing ring of inner cover 21 22 crimp with the flange 11b of cooking-vessel 11 and the inner surface of cooking-vessel 11, and the space of the inside 11e of cooking-vessel 11 becomes Sealing state.In addition, in the case where using locking ring 23, user can rotate into locking ring 23 is exercised and fix inner cover 21 In the operation of the flange 11b of cooking-vessel 11.When the cooking of operation display part 17 is for example started switch connection by user, heating Cooking device 1 starts the heat treatment of cooking-vessel 11.
After heat treatment starts, for example, as shown in Figure 1, the abutting member 34a in decompression beginning portion 34 is by steam discharge valve It is pushed away under 31 top, steam discharge valve 31 becomes lock-out state.From frequency conversion (inverter) portion 42 height is supplied to heating coil 14 Frequency electric current generates high frequency magnetic field, is encouraged with the face opposite with heating coil 14 of 14 magnetic-coupled cooking-vessel 11 of heating coil Magnetic causes eddy current in the bottom surface of cooking-vessel 11.Joule heat is generated using the resistance that the eddy current and cooking-vessel 11 have, The bottom surface of cooking-vessel 11 generates heat and heats the heating object of the inside 11e of cooking-vessel 11.In the inside 11e of cooking-vessel 11 At the time of starting to generate boiling, steam discharge valve 31 is depressurized beginning portion 34 and is set as lock-out state, is adjusted using being blocked by dead weight The pressure limiting hammer 35 of steam port 21c is pressed, steam is hindered to be discharged from the inside 11e of cooking-vessel 11, so as to the inside of cooking-vessel 11 The pressure of 11e rises.35 weight is hammered into shape according to the opening area of pressure regulation steam port 21c and the pressure limiting for blocking pressure regulation steam port 21c, Set the upper limit of pressure value of the inside 11e of cooking-vessel 11.If for example, the diameter phi of pressure regulation steam port 21c be 1mm, and The weight of pressure limiting hammer 35 is 10g, then the upper limit of pressure value of the inside 11e of cooking-vessel 11 is about 2.2 atmospheric pressure (abs). When the pressure of the inside 11e of cooking-vessel 11 reaches the upper limit value of setting, the steam of the inside 11e of cooking-vessel 11 is by pressure limiting Hammer 35 above pushes away, and steam is discharged via pressure regulation steam port 21c and external steam mouth 24a.Therefore, the inside 11e of cooking-vessel 11 Pressure remains constant near the upper limit of pressure value of the inside 11e of cooking-vessel 11.
Later, heat treatment terminates.When just terminating heat treatment, the pressure of the inside 11e of cooking-vessel 11 is kept In the state higher than atmospheric pressure.When making outer cover 24 in this state and inner cover 21 opens, sent out due to pressure change (plunging) Raw bumping, the food materials of the inside 11e of cooking-vessel 11 are it is possible that fly out.It is preferred, therefore, that in the inside for making cooking-vessel 11 The pressure of 11e drops to after the reduced pressure treatment of atmospheric pressure the opening for carrying out outer cover 24.But when in reduced pressure treatment quickly In the case of making steam outlet 21a for completely open (making opening area maximum), it is possible to due to the inside of cooking-vessel 11 The pressure of 11e and bumping occurs, the impetus of the steam of discharge is strong, it is possible to user bring sense of discomfort (such as scaring or Fear).In addition, if in reduced pressure treatment, the opening area of steam outlet 21a is too small, although the impetus of the steam of discharge It is weak, but can not (promptly) be depressurized in a short time.Therefore, using following mechanism:At the decompression of heating device 1 The pressure of the inside 11e of cooking-vessel 11 is made promptly to be decompressed to air in reason while the impetus for the steam for inhibiting to release Pressure.Specifically, in heating device 1, following link mechanism 33 is employed:In reduced pressure treatment after a heating treatment, when When the pressure of the inside 11e of cooking-vessel 11 is high, reduce the opening area of steam outlet 21a, and in cooking-vessel 11 The pressure reduction of portion 11e correspondingly, gradually increases the opening area of steam outlet 21a.
Then, the steam discharging operation in reduced pressure treatment is illustrated using Fig. 4 (a) and Fig. 4 (b), Fig. 5 (a) to Fig. 5 (d).When When compression zone 32 carries out displacement due to the pressure of the inside 11e of cooking-vessel 11, the compression operating member that is connect with compression zone 32 32a above pushes away the second end of link rod part 33b, and steam discharge valve 31 and compression operating member 32a make link rod part 33b with fulcrum 33a Centered on (in Fig. 4 (a) and Fig. 4 (b) along counterclockwise) swung.Fig. 4 (a) shows that steam discharge valve 31 opens and cooks appearance The pressure of the inside 11e of device 11 is the state of atmospheric pressure, and Fig. 4 (b) is steam discharge valve 31 to block the side of steam outlet 21a Formula is depressurized the state that beginning portion 34 is kept and the pressure of the inside 11e of cooking-vessel 11 rises.
Decompression beginning portion 34 blocks steam outlet 21a by pushing steam discharge valve 31 downwards, thus by steam Outlet 21a is set as blocked state, and cooking-vessel 11 thus is set as sealing state.By carrying out at heating in this state Reason, full of steam, the pressure of the inside 11e of cooking-vessel 11 rises, holds with cooking in the space of the inside 11e of cooking-vessel 11 The rising of the pressure of the inside 11e of device 11, pressure are applied in compression zone 32, so as to provide Fig. 4 (a) and Fig. 4 to compression zone 32 (b) the upward power in.As shown in Fig. 2, working as acts decompression beginning portion 34 and releases and push steam discharge valve 31 downwards During power, due to the upward power that the pressure and helical spring 37 of the inside 11e of cooking-vessel 11 generate, steam discharge valve 31 moves To preset position (for example, position of the opening area A1 in Fig. 5 (b)).
If at this point, it is configured in compression zone 32 since pressure reaches the inside 11e's of preset cooking-vessel 11 Upper limit of pressure value and in the state of rising, steam discharge valve 31 is just blocked for (that is, being configured to the opening face shown in Fig. 5 (b) Product A1 is zero), even if then driving depressurizes beginning portion 34 and steam discharge valve 31 is set as test section of the latch-release state, also due to cooking The pressure of the inside 11e of container 11 and cause steam discharge valve 31 occlude state be maintained.Then, it is being cooled and cooking appearance Steam discharge valve 31 can not move before the pressure reduction of the inside 11e of device 11, and it is elongated to depressurize the required time.It is therefore preferable that , portion 34 is set as the steam discharge valve 31 of test section of the latch-release state and is set as by decompression:After as test section of the latch-release state Soon, the opening area (such as opening area A1 in Fig. 5 (b)) for being displaced to steam outlet 21a is about 2mm2Following position It puts, and starts to be vented.2mm2Being below will not when the pressure of the inside 11e of cooking-vessel 11 becomes 2.2 atmospheric pressure (abs) The opening area of the steam outlet 21a of sense of discomfort (such as scaring or fear) is brought to user.
After steam discharge valve 31 moves and steam outlet 21a is opened soon, compression zone 32 is held by upward trying hard to keep The state risen, using the steam discharge valve 31 linked by link mechanism 33, the opening area of steam outlet 21a is set as not It can become more than prespecified upper limit value.With the inside 11e's that steam and cooking-vessel 11 are discharged from steam outlet 21a Pressure reduction makes the power that compression zone 32 rises die down, and compression zone 32 is gradually reduced.When compression zone 32 declines, compression operating member 32a is also simultaneously declined, and steam discharge valve 31 is gradually increasing.It is the needle-shaped of tapered shape since steam discharge valve 31 is front end, and Steam outlet 21a is tubular, so as steam discharge valve 31 rises, the opening area of steam outlet 21a becomes larger.
Fig. 5 (a) shows to release portion 34 is set by decompression the lock-out state of steam discharge valve 31 in moment t0, and It is test section of the latch-release state after moment t0.Fig. 5 (b) show from moment t0 to the reduced pressure treatment of moment t1 in steam outlet An example of the variation of the opening area of 21a.Fig. 5 (c) shows the change of the pressure of the inside 11e of the cooking-vessel 11 in reduced pressure treatment An example of change.Fig. 5 (d) shows an example of the impetus (the steam velocity of discharge) for the steam discharged in reduced pressure treatment.Such as Fig. 5 (a) To Fig. 5 (d) Suo Shi, (it is set as locking when the lock-out state of steam discharge valve 31 that portion 34 is set by decompression to be set as disconnecting Releasing state) when, open steam outlet 21a obtains preset opening area A1.It is accompanied by this, from cooking-vessel 11 Inside 11e let off steam, the pressure of the inside 11e of cooking-vessel 11 continuously decreases, along with the inside 11e of cooking-vessel 11 Pressure reduction, compression zone 32 carries out displacement (decline), and the opening area of steam outlet 21a gradually increases.At this point, such as Fig. 5 (d) shown in, in a manner of when the impetus of the upper limit allowed by the impetus B1 of the steam of releasing close to user and essentially becoming steady state value When setting steam discharge valve 31 and compression zone 32, most can promptly it depressurize.That is, (t1- during reduced pressure treatment being shortened t0)。
The pressure of the inside 11e of cooking-vessel 11 is transmitted on 32 one side of compression zone to compression operating member 32a, keeps cooking on one side The sealing of container 11.In fig. 1 and fig. 2, show a case that compression zone 32 is made of corrugated member.If compression zone 32 uses Corrugated member then by setting corrugated member in the form of being installed on inner cover 21, can by while sealing is kept The pressure state of the inside 11e of cooking-vessel 11 makes compression operating member 32a carry out displacement.
In addition, in the case that steam discharge valve 31 is set as acicular, it is constant in order to which the steam velocity of discharge is remained The impetus simultaneously realizes rapidly decompression, it is preferred that the taper for making steam discharge valve 31 is the angle more than two kinds (pattern) Combine or make the taper shape in curved surface of steam discharge valve 31 continuously to optimize.As described above, by being configured to make compression zone 32 It, can be with the pressure change phase of the inside 11e of cooking-vessel 11 with 31 displacement of steam discharge valve in the state being attached thereto Should be adjusted to the opening area of best steam port without regard to the cooling velocity based on external air temperature, because of content Amount difference caused by quantity of steam difference, the pressure of the inside 11e of the compression zone 32 and cooking-vessel 11 is correspondingly Carry out displacement.Therefore, the robustness (Japanese of heating device 1:ロ バ ス ト) it is excellent, it is difficult to it is influenced by foeign element.
《1-3》Variation
In the above description, the situation that compression zone 32 and steam discharge valve 31 carry out displacement in the up-down direction is instantiated, But the direction of displacement is not limited to upper and lower directions, as long as displacement is carried out using the pressure of the inside 11e of cooking-vessel 11, It can also be the construction that the enterprising line position of (transverse direction in Fig. 1) or other directions is moved in the horizontal direction.
In the above description, the pressure limiting hammer 35 for blocking pressure regulation steam port 21c is set as spherical, but the shape of pressure limiting hammer 35 is unlimited In this, as long as the machine of the release steam such as spring is utilized when the pressure of the inside 11e of cooking-vessel 11 becomes more than certain value Structure can or by spool and to pressure regulation steam port 21c push other mechanisms such as the mechanism that the spring of the spool forms Lai 35 are hammered into shape instead of pressure limiting.
In the above description, the structure that the solenoid of decompression beginning portion 34 moves abutting member 34a is illustrated, but preferably , decompression beginning portion 34 is set as that steam outlet 21a is set as test section of the latch-release state by being powered to disconnecting, is connect by being powered It is logical that steam outlet 21a is set as lock-out state.In this case, when the high shape of the pressure of the inside 11e in cooking-vessel 11 Steam outlet 21a can be opened when having a power failure under state, steam is gradually discharged and reduces the inside 11e of cooking-vessel 11 To atmospheric pressure, safety can be improved.
In the above description, illustrate to be separately provided the construction of steam outlet 21a and pressure regulation steam port 21c, but as long as It is configured to the steam discharge valve that will block steam outlet 21a when the pressure of the inside 11e of cooking-vessel 11 is more than setting value 31 releases do not need to have pressure regulation steam port 21c and pressure limiting hammer 35.For example, it can be opened in steam discharge valve 31 with decompression Have the power more than by setting value between the abutting member 34a in beginning portion 34 and bend the spring of (shortening).In this case, exist When the inside 11e of cooking-vessel 11 is become more than defined setting pressure, steam discharge valve 31 moves, will be in cooking-vessel 11 The steam release of portion 11e, constant pressure is remained by the inside 11e of cooking-vessel 11.An example conduct of such mechanism Embodiment 2 illustrates.
In addition, the shape of steam discharge valve 31 be not limited to it is needle-shaped, as long as the opening area of steam outlet can be made The shape gradually changed can or other shapes.
《1-4》Effect
As described above, 1 heating device 1 according to embodiment, can carry out cooking appearance in a short time The decompression of the inside 11e of device 11 to user without bringing sense of discomfort.
In addition, due to gradually discharging steam in reduced pressure treatment with the impetus of constant, so being difficult to happen due to urgency Acute pressure change and the bumping that content is sprayed to outside, therefore steam will not occur in itself or the ejection of food materials.
In addition, since connecting rod machine can be formed using simple construction (construction swung centered on fulcrum 33a) Structure 33, so the increase of product cost can be inhibited, the position of the link mechanism 33 and the compression zone 32 along with pressure reduction Shifting correspondingly makes 31 displacement of steam discharge valve, so that the opening area of steam outlet 21a gradually increases.
In addition, since the simply construction such as solenoid can be used as decompression beginning portion 34, so product can be inhibited The increase of cost, the decompression beginning portion 34 is that steam discharge valve 31 is switched in the state of steam outlet 21a is occluded Steam discharge valve 31 is set as the lock-out state of immovable state and steam discharge valve 31 is set as to the latch-release of movable state The switching part of any one of state state.
In addition, due to when power supply disconnects solenoid steam discharge valve 31 is set as test section of the latch-release state, so can be Promptly the inside 11e of cooking-vessel 11 is depressurized when having a power failure, it can be ensured that the safety of user.
《2》Embodiment 2
《2-1》Structure
In the embodiment 1, primarily illustrating will be for the pressure of the inside 11e of adjusting cooking-vessel 11 in heat treatment The pressure-regulating portion (pressure regulation steam port 21c and pressure limiting hammer 35) of power and the inside 11e for reducing cooking-vessel 11 in reduced pressure treatment The relief portion (steam outlet 21a and steam discharge valve 31) of pressure set the situation for being independent construction.In this regard, in embodiment party It, will be for the pressure-regulating portion that the pressure of the inside 11e of cooking-vessel 11 is adjusted in heat treatment and in reduced pressure treatment in formula 2 The relief portion of the pressure of the middle inside 11e for reducing cooking-vessel 11 is set as shared construction (steam discharge unit).It is real in addition to the point It is identical with embodiment 1 to apply mode 2.Therefore, when illustrating embodiment 2, also partly (about the structure other than steam discharge unit Make) with reference to Fig. 1.In addition, when illustrating embodiment 2, by with being illustrated centered on the difference of embodiment 1.
Fig. 6 is the steam discharge that the cover 50 for the heating device 2 for roughly showing embodiments of the present invention 2 has The longitudinal section view of the construction (when the pressure of the inside 11e of cooking-vessel 11 is equal to atmospheric pressure) in portion.Fig. 7 (a) and Fig. 7 (b) is general The longitudinal section view of pressure regulation action in the heat treatment of steam discharge unit that heating device 2 has slightly is shown.Fig. 8 (a) and Fig. 8 (b) is the vertical profile for roughly showing the action in the reduced pressure treatment of steam discharge unit that heating device 2 has View.
As shown in fig. 6, as main inscape, heating device 2 have cooking-vessel 11 (being shown in FIG. 1) and As the inner cover 50 of cover, the inner cover 50 has the pressure modulating opening (connection that the inside 11e for making cooking-vessel 11 is connected with outside Hole) 50a, and block the opening portion (11a in Fig. 1) of cooking-vessel 11.In addition, heating device 2 has as compression zone Movable compression member 51 is set to inner cover to the movable compression member 51 movable (can be slided in the upper and lower directions of Fig. 6) 50 pressure modulating opening 50a correspondingly carries out displacement (movement), and having holds the cooking with the pressure of the inside 11e of cooking-vessel 11 Movable type steam port (steam outlet) 51a that the inside 11e of device 11 is connected with outside.In addition, heating device 2 has conduct The steam discharge valve 52 of spool, the steam discharge valve 52 is disposed relative to inner cover 50 movably, and adjusts and discharged as steam The opening area of the movable type steam port 51a of mouth.Steam discharge valve 52 can be carried out along the hole portion 53a for being set to sticking department 53 It is mobile, due to the pressure spring 54 as pressure regulating member by the downward active force in Fig. 6.In addition, sticking department 53 due to The force application spring 58 of major diameter and by the upward active force in Fig. 6.In addition, inner cover 50 has the shifting to movable compression member 51 The limiting unit 55 that dynamic range is limited.In addition, space 59 is airspace.
In the example of fig. 6, movable compression member 51 is formed by the movable link of tubular, and the movable link of the tubular exists It is formed in the pressure modulating opening 50a of inner cover 50 and carries out displacement (being moved in upper and lower directions in figure 6).Heating device 2 with The displacement of movable compression member 51 in the reduced pressure treatment of the inside 11e of cooking-vessel 11 correspondingly carries out steam discharge valve 52 Displacement (is moved) in the up-down direction in figure 6, so that the opening area of movable type steam port 51a gradually increases.
Movable compression member 51 increases with the pressure of the inside 11e of cooking-vessel 11, and the top into Fig. 6 rises, into For the state shown in Fig. 7 (a) and Fig. 7 (b) and Fig. 8 (a) and Fig. 8 (b).Steam discharge valve 52 is configured to along with movable compression structure The movable type steam port 51a of part 51 rises and rises in the state of movable type steam port 51a is blocked.Steam discharge valve 52 is for example The needle-valve for being directed towards the inside 11e of cooking-vessel 11 and attenuating.According to the position of steam discharge valve 52 and movable type steam port 51a Relationship, the opening area of change steam outlet 51a.The actuating length of steam discharge valve 52 is by sticking department 53 and is used as pressure regulation structure The pressure spring 54 of part limits, and the sticking department 53 abutting member 34a lockings of portion (34 in Fig. 1) by decompression (limit It is mobile), in addition, the stroke of movable type steam port 51a is determined by limiting unit 55.As long as pressure spring 54 is to steam discharge valve 52 There is provided preset pressure (the downward active force in Fig. 6) component can or pressure spring shown in fig. 6 with Outer component.
《2-2》Action
Fig. 7 (a) show the pressure of the inside 11e of the cooking-vessel 11 in heat treatment rise from atmospheric pressure and movably by Pressure component 51 is being blocked the state that rises in the state of movable type steam port 51a by steam discharge valve 52.Fig. 7 (b) is shown below State:The further rise in pressure of the inside 11e of cooking-vessel 11 compared with the state of Fig. 7 (a), steam discharge valve 52, which is resisted, to be adjusted It presses the downward active force of component 54 and rises, and discharge the steam (arrow C1) of the inside 11e of cooking-vessel 11.At this point, by It is the state abutted with limiting unit 55 in movable compression member 51, so the inner wall in movable type steam port 51a is discharged with steam Gap can be formed between valve 52.When forming gap, the steam of the inside 11e of cooking-vessel 11 is put via gap to space 59 Go out, the inside 11e of cooking-vessel 11 is generally maintained at setting pressure.
Fig. 8 (a) shows situation of the pressure for high pressure conditions of the inside 11e of the cooking-vessel 11 in reduced pressure treatment, Fig. 8 (b) pressure for showing the inside 11e of the cooking-vessel 11 in reduced pressure treatment is the state reduced compared with the situation of Fig. 8 (a) The situation of (state higher than atmospheric pressure).In addition, Fig. 8 (a) and Fig. 8 (b) are shown by depressurizing beginning portion 34 (being shown in FIG. 1) Action sticking department 53 is set as to the situation of test section of the latch-release state.Since sticking department 53 is moved upward, so steam discharge valve 52 slightly rise together with pressure regulating member 54, begin through the reduced pressure treatment that steam discharge carries out.As illustrated in the embodiment 1 As, it is preferred that it is using the opening area for depressurizing steam outlet 51a when beginning portion 34 proceeds by reduced pressure treatment 2mm2Hereinafter, the 2mm2It is the area for the impetus that can fully inhibit steam D1, D2 below.When the discharge for starting steam, such as Shown in Fig. 8 (a) and Fig. 8 (b), steam discharge valve 52 keeps the shape risen using the steam pressure of the inside 11e of cooking-vessel 11 State, later, as shown in Fig. 8 (b), the movable pressure regulating member 51 with movable type steam port 51a is set to cooking-vessel 11 Inside 11e pressure decline and be gradually reduced.As the distance of acicular steam discharge valve 52 and movable type steam port 51a expand Greatly, the opening area of movable type steam port 51a expands, and the impetus of steam D1, D2 can be located to the permissible range of user on one side It is interior, promptly the inside 11e of cooking-vessel 11 is depressurized on one side.
《2-3》Variation
Fig. 9 is the office of the construction of the steam discharge unit of the heating device 2a for the variation for roughly showing embodiment 2 Portion's perspective cut-away view.Figure 10 (a) and Figure 10 (b) is the action for the steam discharge unit for showing heating device 2a shown in Fig. 9 Side view and sectional view.In the above description, as shown in Fig. 8 (a), steam discharge valve soon is illustrated after reduced pressure treatment starts 52 are maintained at the situation of the position of maximum rising, but as shown in Fig. 9, Figure 10 (a) and Figure 10 (b), can also be configured to:In cover Inclined cam hole 50b relative to horizontal direction is formed on 50, and is had in sticking department 53 convex as engaging with cam hole 50b The cam part 56 in portion rotates sticking department 53 while reduced pressure treatment is started.In this case, it is rotated together with sticking department 53 The protrusion 57 that has of steam discharge valve 52 the portion 50c that takes a seat of inner cover 50 is seated in lifting position.Through this structure, Can stablize the action (position) of the steam discharge valve 52 in reduced pressure treatment.Later, when down from above be pushed into sticking department 53 When, the rotation of sticking department 53 and steam discharge valve 52 is carried out by using engaging of the cam part 56 with cam hole 50b, can be solved Except the engaging with the portion 50c that takes a seat of protrusion 57 of steam discharge valve 52, steam discharge valve 52 is made to revert to and can move up and down.
In addition, in the above description, illustrate steam discharge valve 52 and the situation that movable pressure regulating member 51 moves up and down, but Their direction of action is not limited to move up and down.
In addition, the shape of steam discharge valve 52 be not limited to it is needle-shaped, as long as the opening area of steam outlet can be made The shape gradually changed can or other shapes.
《2-4》Effect
As described above, it according to heating device 2 and heating device 2a, can obtain and in above-mentioned embodiment party The identical effect of the effect that illustrates in formula 1.
In addition, according to heating device 2 and heating device 2a, due to can be heated using shared mechanism In pressure regulation and reduced pressure treatment in decompression, so pressure regulation can be configured to using the narrow occupied area on inner cover 50 And the construction of decompression.
The explanation of reference numeral
1st, 2,2a heating devices, 11 cooking-vessels, 11a opening portions, 11b flanges, 11c handle portions, 11d inner surfaces, 11e Inside, 12 apparatus main bodies, 13 container covers, 14 heating coils, 15 cooking bottom temperature sensors (temperature sensor), 16 compressed springs, 17 operation display parts, 21 inner covers (cover), 21a steam outlets (intercommunicating pore), 21b the guide holes, (connection of 21c pressure regulation steam port Hole), 22 lid sealing rings, 23 locking rings, 24 outer covers, 24a external steam mouths, 31 steam discharge valves (spool), 32 compression zones, 32a Compression operating member, 33 link mechanisms, 33a fulcrums (fulcrum), 33b link rod parts, 34 decompression beginning portions, 34a abutting members, 35 pressure limitings Hammer, 36 lid temperature sensors (temperature sensor), 37 elastic components (helical spring), 41 control units, 42 inverter units, 50 inner covers (cover), 50a pressure modulating openings (intercommunicating pore), 50b cam holes, 50c take a seat portion, 51 movable compression members (pressure-regulating portion), 51a movable types Steam port (steam outlet), 52 steam discharge valves, 53 sticking departments, 54 pressure springs (pressure regulating member), 55 limiting units, 56 cams Portion, 57 protrusions, 58 force application springs, 59 airspaces.

Claims (14)

1. a kind of heating device, which is characterized in that have:
Cooking-vessel, the cooking-vessel have opening portion;
Cover, the cover block the opening portion;
Compression zone, the compression zone are movably set to the cover, and with the pressure of the inside of the cooking-vessel correspondingly Carry out displacement;And
Spool, it is movable that the spool is disposed relative to the cover,
Any one in the cover and the compression zone has the steam that the inside of the cooking-vessel is made to be connected with outside Outlet,
The opening area of the steam outlet is adjusted by the spool,
Correspondingly, the opening area is gradual for displacement with the compression zone in the reduced pressure treatment of the inside of the cooking-vessel Increase.
2. heating device according to claim 1, which is characterized in that
The steam outlet is formed at the intercommunicating pore of the cover.
3. heating device according to claim 1 or 2, which is characterized in that
The heating device also has link mechanism, the link mechanism and the compression of the reduction along with the pressure The displacement in portion correspondingly makes the spool displacement, so that the opening area of the steam outlet gradually increases.
4. heating device according to claim 3, which is characterized in that
The link mechanism has the link rod part swung centered on being set to the fulcrum of the cover,
The link rod part has the first end linked with the spool and the second end linked with the compression zone.
5. heating device according to any one of claim 1 to 4, which is characterized in that
The heating device also has switching part, and the spool is switched to and is occluding the steam outlet by the switching part In the state of the spool is set as the lock-out state of immovable state and the spool is set as to the latch-release of movable state Any one of state state.
6. heating device according to any one of claim 1 to 5, which is characterized in that
Have the pressure regulation steam port that the inside of the cooking-vessel is made to be connected with outside in the cover,
The heating device is also equipped with blocking the pressure limiting hammer of the pressure regulation steam port.
7. heating device according to claim 1, which is characterized in that
The compression zone is arranged to the movable compression member that can be moved along pressure modulating opening, and the pressure modulating opening is set to institute State cover,
The steam outlet is formed at the intercommunicating pore of the movable compression member.
8. heating device according to claim 7, which is characterized in that
The heating device is also equipped with pressure regulating member, and the pressure regulating member is provided to the spool towards the steam outlet Pushing force.
9. heating device according to claim 7 or 8, which is characterized in that
The heating device also has switching part, and the spool is switched to lock-out state and latch-release shape by the switching part Any one of state state, the lock-out state are by inside of the travel limit of the displacement of the spool for the cooking-vessel The state of the first stroke needed for the pressure regulation of pressure, the test section of the latch-release state are that the stroke of the displacement of the spool is set as institute State the state of the long stroke of the first stroke described in the ratio needed for the reduced pressure treatment of the internal pressure of cooking-vessel.
10. the heating device according to any one of claim 7 to 9, which is characterized in that
The heating device is also equipped with limiting the sticking department of the movement of the spool,
The cover has the cam hole that the outer wall with the sticking department is formed opposite to each other,
The sticking department has the cam part engaged with the cam hole.
11. heating device according to any one of claim 1 to 10, which is characterized in that
The heating device also has the heating part heated to the cooking-vessel.
12. heating device according to any one of claim 1 to 11, which is characterized in that
The spool has towards the inside of the cooking-vessel and the tapering that attenuates.
13. heating device according to claim 5, which is characterized in that
The switching part is switched to test section of the latch-release state when being powered and disconnecting.
14. a kind of lid, which is characterized in that have:
Cover, the cover block the opening portion of the cooking-vessel with opening portion;
Compression zone, the compression zone are movably set to the cover, and with the pressure of the inside of the cooking-vessel correspondingly Carry out displacement;And
Spool, it is movable that the spool is disposed relative to the cover,
Any one in the cover and the compression zone has the steam that the inside of the cooking-vessel is made to be connected with outside Outlet,
The opening area of the steam outlet is adjusted by the spool,
Correspondingly, the opening area is gradual for displacement with the compression zone in the reduced pressure treatment of the inside of the cooking-vessel Increase.
CN201580081926.0A 2015-11-02 2015-11-02 Heating cooker and lid Active CN108135379B (en)

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WO2017077571A1 (en) 2017-05-11
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TW201716018A (en) 2017-05-16
JPWO2017077571A1 (en) 2018-02-22
KR20180021845A (en) 2018-03-05
JP6410956B2 (en) 2018-10-24
TWI611785B (en) 2018-01-21

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