WO2019128111A1 - 用于烹饪器具的泄压装置和烹饪器具 - Google Patents

用于烹饪器具的泄压装置和烹饪器具 Download PDF

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Publication number
WO2019128111A1
WO2019128111A1 PCT/CN2018/089951 CN2018089951W WO2019128111A1 WO 2019128111 A1 WO2019128111 A1 WO 2019128111A1 CN 2018089951 W CN2018089951 W CN 2018089951W WO 2019128111 A1 WO2019128111 A1 WO 2019128111A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure relief
cooking appliance
blocking member
seal
cooking
Prior art date
Application number
PCT/CN2018/089951
Other languages
English (en)
French (fr)
Inventor
罗飞龙
刘化勇
梁志佳
邢胜华
马利
黄韦铭
吴慧民
羊小亮
黄宇华
Original Assignee
佛山市顺德区美的电热电器制造有限公司
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
Priority claimed from CN201721928114.8U external-priority patent/CN208784398U/zh
Priority claimed from CN201721928442.8U external-priority patent/CN208658937U/zh
Priority claimed from CN201721928111.4U external-priority patent/CN208658698U/zh
Priority claimed from CN201721928113.3U external-priority patent/CN208658699U/zh
Priority claimed from CN201721928306.9U external-priority patent/CN208658702U/zh
Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Priority to JP2020536661A priority Critical patent/JP7153730B2/ja
Priority to KR1020207019994A priority patent/KR102384673B1/ko
Publication of WO2019128111A1 publication Critical patent/WO2019128111A1/zh

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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
    • 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
    • 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
    • A47J27/0802Control mechanisms for pressure-cookers
    • 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
    • A47J27/0804Locking devices
    • A47J27/0815Locking devices where vessel and lid have adapted shapes to provide for the locking action

Definitions

  • the present application relates to the field of cooking equipment, and more particularly to a pressure relief device and a cooking appliance for a cooking appliance.
  • the existing vacuum rice cooker includes a vacuum device and a pressure relief structure, and a vacuum device is used to realize a negative pressure state in the cooking device, thereby improving the rice cooking effect, and when the rice cooker needs to return from a negative pressure state to a normal pressure state, the pressure relief structure is performed. Relieve pressure.
  • existing vacuum rice cookers still have many deficiencies, such as insufficient sealing performance, high production cost, and the like, and there is room for improvement.
  • the present application is intended to address at least one of the technical problems existing in the prior art. To this end, the present application proposes a pressure relief device for a cooking appliance that has better sealing performance and a longer service life.
  • the application also proposes a cooking appliance.
  • a pressure relief device for a cooking appliance having a pressure relief hole
  • the pressure relief device comprising: a sealing assembly for opening and closing the pressure relief hole; a drive assembly,
  • the drive assembly is coupled to the seal assembly for driving the seal assembly to open or block the pressure relief aperture.
  • the sealing component of the sealing assembly or the sealing assembly is driven by the driving assembly to realize opening and closing of the pressure relief hole, the structure is simple, and the cost of the cooking appliance is reduced.
  • the cover of the cooking appliance has the pressure relief hole and a mounting opening directly above the pressure relief hole, the sealing assembly including a longitudinally movable blocking member and a seal at the mounting opening, a middle portion of the seal is connected to the blocking member to move with the blocking member, and an outer circumference of the sealing member is sealingly connected at the mounting opening, the driving An assembly is coupled to the closure member of the seal assembly for driving the closure member of the seal assembly to move.
  • the middle portion of the sealing member is connected to the blocking member by fixing the sealing member at the mounting opening, and the outer peripheral edge of the sealing member is sealingly connected to the mounting opening to realize the sealing member.
  • the multi-stage connection is fixed to prevent the seal from coming off, improve the sealing property of the seal, and thereby improve the sealing performance and the use performance of the pressure relief device.
  • the seal includes: a movable portion that is coupled to the blocking member to move with the blocking member; and a fixing portion that is coupled to the movable portion and formed along the movable portion a circumferentially extending annular shape of the movable portion, the fixing portion being sealingly connected at the mounting opening.
  • the blocking member forms a column extending in the longitudinal direction, and a lower end of the blocking member is coupled to the movable portion.
  • the lower end side peripheral wall of the blocking member has an annular groove extending along a circumferential direction thereof to form a chuck at a lower end of the blocking member, and a middle portion of the movable portion has a chucking engagement with the chuck Card slot.
  • the mounting opening is defined by an annular support rib disposed directly above the pressure relief hole, the fixed portion having an annular sealing groove opening toward the annular support rib, the annular support rib and the seat
  • the annular sealing groove is snap-connected
  • the sealing assembly further includes: a pressing member adapted to be detachably disposed at the mounting opening to press the outer circumference of the fixing portion to the ring
  • a pressing member adapted to be detachably disposed at the mounting opening to press the outer circumference of the fixing portion to the ring
  • An upper surface of the support rib, the upper surface of the annular support rib is provided with a limiting protrusion to increase the friction between the annular support rib and the sealing member.
  • the movable portion is made of a flexible material
  • the fixing portion is made of a flexible material or a hard material
  • the sealing member is an integrally molded piece.
  • the driving assembly further includes: an electromagnet and an electromagnet push rod driven by the electromagnet, the electromagnet push rod being coupled to the blocking member for pushing the The blocking member moves, the end of the electromagnet push rod has an abutting portion, and the driving assembly further includes a return elastic member, and both ends of the return elastic member respectively terminate with the abutting portion and the electromagnet A pressure-control elastic member is connected between the electromagnet push rod and the blocking member.
  • the force of the lateral movement of the lateral push rod is converted into the force of the longitudinal movement of the seal assembly by the lateral push rod of the drive assembly, thereby driving the seal assembly against the pressure relief hole
  • the opening and closing action is performed; at the same time, the structure is simple, and the cost of the pressure relief device is effectively reduced.
  • the cooking appliance has a cooking cavity and a pressure relief aperture that is in communication with the cooking cavity, the seal assembly being movable longitudinally for opening and closing the pressure relief aperture, the drive assembly A lateral push rod movable in a lateral direction, the lateral push rod being coupled to the seal assembly to drive the seal assembly to move in the longitudinal direction as the lateral push rod moves in the lateral direction.
  • At least a portion of the lateral push rod forms a drive segment having a highest point and a lowest point, the seal assembly having a through hole extending in the lateral direction, the lateral push rod passing through the through hole and The seal assembly is moved when the drive segment mates with the through hole.
  • the drive segment forms a slanted bar segment that extends obliquely relative to the lateral direction, wherein the drive segment extends obliquely downwardly from the inside toward the outside along the lateral direction, the highest point and the lowest point They are respectively formed at both ends of the driving segment.
  • the longitudinal section of the inner wall surface of the through hole forms an arc curved in the middle toward the center of the through hole.
  • the pressure relief device further includes: a valve body having a passage extending along the longitudinal direction, the seal assembly including: a longitudinal push rod along a length of the passage Moving in a direction, the top end of the longitudinal push rod is provided with the through hole; a sealing member for opening and blocking the pressure releasing hole, and an outer circumference of the sealing member is connected to a bottom of the valve body, A central portion of the seal is coupled to the longitudinal push rod for movement with the longitudinal push rod.
  • the sealing assembly further includes: a blocking member, the blocking member is disposed in the valve body, and an elastic member is disposed between the blocking member and the longitudinal push rod, The middle portion of the sealing member is connected to the blocking member, wherein the outer shape of the blocking member is slightly smaller than the cross-sectional dimension of the passage, and the blocking member is coupled to the middle portion of the sealing member.
  • the drive assembly is an electromagnet assembly and includes an electromagnet and a drive rod driven by the electromagnet, the drive rod is jacketed with a spring, and two ends of the spring are respectively associated with the drive rod The free end and the electromagnet are connected to each other, wherein the free end of the driving rod is provided with a latching portion, and one end of the lateral push rod is snap-connected with the latching portion.
  • a cooking appliance according to a second aspect of the present application comprising the pressure relief device for a cooking appliance according to the above embodiments.
  • the driving assembly drives the sealing assembly to move, the opening and closing of the pressure releasing hole is realized, the structure is simple, and the cost of the cooking appliance is reduced.
  • the cooking appliance further includes: a pot body having a cooking chamber having an open top; a cover body movably mounted to the pot body between an open position and a closed position, The pressure relief hole is disposed on the cover body, and the pressure relief device is disposed in the cover body.
  • the cover has a suction port
  • the cooking appliance further includes a vacuum device in communication with the suction port to create a negative pressure within the cooking cavity of the cooking appliance.
  • a cooking appliance comprising: a pot body having a cooking chamber having an open top; a lid body movably mounted to the pot body between an open position and a closed position
  • the cover body has an air suction port and a pressure release hole; a micro diaphragm pump communicates with the air suction port to form a negative pressure in the cooking cavity; and is used for opening and blocking the pressure relief hole a pressure relief device, the pressure relief device is disposed in the cover body to allow air to enter the cooking cavity through the pressure relief hole or to discharge steam through the pressure relief hole when opening the pressure relief hole Outside the cooking chamber, wherein the pressure relief hole has an orthographic projection area on the bottom wall of the cooking chamber of 20 mm 2 - 51 mm 2 .
  • the above-mentioned conditions are satisfied by defining the orthographic projection area of the pressure relief hole on the bottom wall of the cooking chamber, thereby minimizing the pressure relief noise, avoiding the overflow of the rice soup, and at the same time minimizing the vacuum adsorption. Force, thereby reducing the cost of cooking appliances.
  • the pressure relief hole forms a circular hole, and the pressure relief hole has a diameter of 5 mm to 8 mm.
  • the pressure relief device includes: a seal assembly movable in a longitudinal direction for opening and closing the pressure relief hole; a drive assembly, the drive assembly and the seal A component connection for driving the seal assembly to move to seal the pressure relief hole.
  • the pressure relief device further includes: a valve body having a passage extending along the longitudinal direction, the seal assembly including: a valve core, the valve core being disposed at the valve Movable in the body and along the length of the passage; a seal for opening and closing the pressure relief hole, the outer circumference of the seal is connected to the bottom of the valve body, the middle portion of the seal is The spool is coupled for movement with the spool, wherein the spool forms a column extending along a length of the passage, and one end of the spool is coupled to the drive assembly, the spool The other end is provided with a snap portion that is in snap-fit connection with the sealing member; and/or the sealing assembly further includes: a blocking member, the blocking member is movably disposed in the valve body and the sealing member A pressure-control spring is disposed between the blocking member and the valve core, and a middle portion of the sealing member is connected to the blocking member.
  • the drive assembly includes an electromagnet and a drive rod driven by the electromagnet, the drive rod is coupled to the seal assembly, the drive rod is jacketed with a return spring, and two of the return springs The ends are respectively connected to the end of the drive rod and the electromagnet.
  • the cover body includes an inner cover and a cover plate disposed on a side of the inner cover facing the cooking chamber, and the air suction port and the pressure release hole are disposed on the cover plate, wherein a sealing ring connected to the cover plate is disposed on a side of the inner cover facing the cover plate, and the pressure is defined between the inner cover, the cover plate and the sealing ring
  • the pressure-receiving chamber is connected to the hole, and the inner cover is further provided with a steam valve, and the steam valve is electrically connected to the pressure-reducing chamber.
  • a cooking appliance comprising: a pot body having a top open cooking chamber; a lid body pivotally coupled to the open position and the closed position by a pivot shaft to The pot body has a suction port, an air outlet and a steam passage communicating with the cooking chamber; a vacuum pump, the vacuum pump is disposed in the cover body and is respectively connected to the air suction port and the air outlet To create a negative pressure within the cooking chamber, the vacuum pump is located between the pivot shaft and the steam passage.
  • the vacuum pump by disposing the vacuum pump between the pivot shaft and the steam passage, it is helpful to reduce the rotational torque of the vacuum pump, thereby reducing the rotational torque of the cover opening; and simultaneously improving the opening of the vacuum pump in the cover
  • the stability of the time can effectively prevent the opening of the flea.
  • the steam passage is disposed adjacent to the pivot shaft, the vacuum pump being disposed adjacent to the pivot shaft or the steam passage.
  • the suction port is provided in a middle portion of the cover body in a normal direction perpendicular to an axis of the pivot shaft.
  • the air outlet is disposed adjacent to the pivot shaft and an outer circumference of the cover.
  • the vacuum pump is fixed in the cover body by a mounting bracket, wherein the mounting bracket comprises: at least two oppositely arranged support columns and a support plate, the support plate being provided in at least two a top portion of the support column and connected to each of the support columns, the vacuum pump being mounted on the support plate, at least two of the support columns being arranged at a normal spacing perpendicular to an axis of the pivot axis; and Or, at least a portion of a side surface of the support plate facing the vacuum pump forms a curved surface that matches the outer shape of the vacuum pump.
  • the vacuum pump has a vacuum pump inlet and a vacuum pump outlet, and the vacuum pump inlet communicates with the suction port through a connecting pipe, and the vacuum pump outlet communicates with the air outlet through a connecting pipe.
  • the cooking appliance comprises a pressure relief device for a cooking appliance according to the above embodiments.
  • a cooking appliance comprising: a pot body having a cooking chamber having an open top; a lid body movably mounted to the pot body between an open position and a closed position
  • the cover body has an air suction port; the air suction device communicates with the air suction port to form a negative pressure in the cooking cavity; and an anti-blocking member, the anti-blocking member is disposed at the air suction port And the anti-blocking member defines at least one airflow passage communicating with the cooking cavity and the suction port between the cover body when the air suction device is in operation, and the horizontal flow of each of the airflow passages
  • the cross-sectional area S1 is less than or equal to 4 mm 2 .
  • the air extracting device can define an air flow passage with the anti-blocking member during operation, and define a cross-sectional area of the airflow passage, thereby effectively preventing the large-grain food such as rice grains from being blocked.
  • the air port realizes the anti-blocking function, ensuring smooth air pumping, thereby improving the user experience of the cooking appliance.
  • the anti-blocking member is a flexible member, and the anti-blocking member is snapped at the suction port; and/or the air suction device is a vacuum pump.
  • the cover body includes an inner cover and a cover plate connected to a side of the inner cover facing the cooking cavity
  • the anti-blocking member includes: a fixing portion, at least the fixing portion a portion of the cross-sectional area is larger than a cross-sectional area of the suction port and located at a side of the cover plate facing the inner cover; an anti-blocking portion connected to the fixing portion and located at the cover plate a side facing away from the inner cover, the anti-blocking portion having at least one groove facing a side of the cover plate to define the air flow passage with the cover plate when the air extracting device is in operation
  • the groove has a cross-sectional area of the S1, wherein the groove includes a plurality of grooves, and a plurality of the grooves are circumferentially spaced along the fixing portion, and a cross section of the plurality of grooves
  • the area sum S2 is greater than or equal to 7 mm 2 ; and/or the groove is formed in a square shape, a circular shape
  • the method further includes: a connection joint provided on the inner cover, the connection joint having a connection passage that is electrically connected to the suction port, and the air suction device is connected to the connection passage.
  • Figure 1 is a schematic view showing the structure of a cooking appliance according to the present application.
  • Figure 2 is an enlarged view of a portion A of Figure 1;
  • FIG. 3 is a schematic structural view of a pressure relief device according to another embodiment of the present application.
  • Figure 4 is a schematic structural view of a cooking appliance according to the present application.
  • Figure 5 is a schematic view showing the installation of the pressure relief device of the cooking appliance according to the present application on the cover;
  • Figure 6 is a schematic structural view of a pressure relief device according to the present application.
  • Figure 7 is a schematic structural view of a cooking appliance according to the present application.
  • Figure 8 is a schematic view showing the installation of the pressure relief device on the cover according to the present application.
  • Figure 9 is a schematic structural view of a cover plate according to the present application.
  • Figure 10 is an enlarged view of a portion C shown in Figure 7;
  • FIG. 11 is a schematic structural view of a pressure relief device according to another embodiment of the present application.
  • Figure 12 is a schematic structural view of a cooking appliance according to the present application, wherein the cover is in a closed state;
  • Figure 13 is a schematic structural view of a cooking appliance according to the present application, wherein the cover is in an open state;
  • Figure 14 is a schematic view showing the installation of a vacuum pump according to the present application on a cover
  • Figure 15 is a schematic structural view of a cooking appliance according to the present application.
  • Figure 16 is an enlarged view of the E1 portion of Figure 15;
  • Figure 17 is a schematic structural view of a blocking member according to the present application.
  • Figure 18 is a plan view of the anti-blocking member according to Figure 17;
  • Figure 19 is a partial cross-sectional view taken along line E2-E2 of Figure 18.
  • Cover body 20 inner cover 201, cover plate 202, pivot shaft 203,
  • connection In the description of the present application, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present application can be understood in the specific circumstances for those skilled in the art.
  • the pressure relief device of the vacuum rice cooker in the related art is composed of an electromagnet, a small ball valve and a sealing ring, and the pressure relief hole is blocked by a small ball valve, thereby sealing the cooking cavity; when the rice cooker needs to return from the negative pressure state to the normal pressure In the state, the ball is pushed away by the electromagnet to release the pressure.
  • the sealing ring in the pressure relief device has a hidden danger of being detached during use, and aging deformation occurs after a period of frequent use, thereby affecting the sealing property of the structure.
  • the present application proposes a pressure relief device for a cooking appliance that has better sealing performance and a longer service life.
  • a pressure relief device for a cooking appliance includes a seal assembly and a drive assembly.
  • the cooking appliance 100 has a pressure relief hole 21, the sealing assembly is movable in the longitudinal direction or the sealing member includes a longitudinally movable blocking member for opening and closing the pressure relief hole 21, the driving assembly and the sealing assembly A connection for driving the sealing assembly to open or block the pressure relief hole 21.
  • the drive assembly can drive the seal assembly to move to open or seal the pressure relief aperture 21, or the drive assembly can drive the closure member of the seal assembly to move to open or seal the pressure relief aperture 21.
  • the sealing member of the sealing assembly or the sealing assembly is driven by the driving assembly to realize the opening and closing of the pressure relief hole 21, the structure is simple, and the cost of the cooking appliance is reduced.
  • a pressure relief device 30A for a cooking appliance according to the present application will be described below with reference to Figs.
  • the cover 20 of the cooking appliance 100 has a pressure relief hole 21 and a mounting opening 23, and the mounting opening 23 is located in the pressure relief hole.
  • the pressure relief device 30A includes a seal assembly 31A and a drive assembly 32A.
  • the seal assembly 31A is for opening and closing the pressure relief hole 21, the seal assembly 31A includes a seal member 314A and a seal member 313A, the seal member 314A is movable in the longitudinal direction, and the seal member 313A is disposed at the mounting port 23, the middle portion of the seal member 313A It is coupled to the blocking member 314A so as to be movable with the blocking member 314A, and the outer periphery of the sealing member 313A is sealingly coupled to the mounting opening 23.
  • the driving assembly 32A is coupled to the blocking member 314A for driving the blocking member 314A to move, thereby causing the sealing member 313A to move to open or close the pressure releasing hole 21.
  • the pressure relief device 30A for a cooking appliance of the present application by fixing the seal 313A at the mounting opening 23, the middle portion of the seal 313A is connected to the blocking member 314A, and the outer circumference of the sealing member 313A is sealingly connected thereto.
  • the mounting port 23 realizes multi-stage connection and fixing of the sealing member 313A, prevents the sealing member 313A from coming off, improves the sealing property of the sealing member 313A, and further improves the sealing property and the usability of the pressure releasing device 30A.
  • the sealing member 313A includes a movable portion 3131A and a fixing portion 3132A, and the movable portion 3131A is connected with the blocking member 314A so as to be movable with the blocking member 314A and fixed.
  • the portion 3132A is coupled to the movable portion 3131A, and the fixed portion 3132A is formed in a ring shape extending in the circumferential direction of the movable portion 3131A, and the fixed portion 3132A is sealingly coupled to the mounting port 23.
  • the blocking member 314A is formed in a columnar shape extending in the longitudinal direction (up and down direction in FIG. 2), and the lower end of the blocking member 314A is snap-connected to the movable portion 3131A.
  • the sealing of the sealing member 311 is achieved by the engagement of the blocking member 314A with the movable portion 3131A, and the falling of the sealing member 311 is prevented.
  • the lower end side peripheral wall of the blocking member 314A has an annular groove extending in the circumferential direction of the blocking member 314A, thereby forming a chuck 3141A at the lower end of the blocking member 314A, and the middle portion of the movable portion 3131A has The card slot 31311A is engaged with the card head 3141A, so that the movable portion 3131A is engaged with the blocking member 314A to realize synchronous movement with the blocking member 314A.
  • the pressure relief hole 21 has an annular support rib 50 directly above, the annular support rib 50 defines a mounting opening 23, and the fixing portion 3132A has an annular sealing groove 31321A, and the annular sealing groove 31321A The opening is oriented in the direction of the annular support rib 50, and the annular support rib 50 is snap-fitted to the annular seal groove 31321A.
  • the seal member 311 is fixed at the mounting opening 23, further preventing the seal member 311 from falling off and improving stability.
  • the radial dimension of the annular sealing groove 31321A is not less than the radial dimension of the annular supporting rib 50, so that the locking of the fixing portion 3132A and the annular supporting rib 50 is more firm, and the sealing property of the sealing member 313A is improved.
  • the seal assembly 31A further includes a pressing member 311A that is detachably provided at the mounting opening 23, and the pressing member 311A is disposed at an upper portion of the fixing portion 3132A so that the outer periphery of the fixing portion 3132A can be The edge pressure is provided on the upper surface of the annular support rib 50.
  • the upper surface of the annular support rib 50 is provided with a stop projection 51 which can increase the friction between the annular support rib 50 and the seal 313A. Further, the sealing member 311 is pressed by the limiting action of the limiting projection 51 to prevent the sealing member 311 from coming off and the stability is improved.
  • the inner peripheral wall of the annular seal groove 31321A may also be provided with a matte structure such as etched, thereby increasing the friction between the seal 313A and the annular support rib 50.
  • the movable portion 3131A is made of a flexible material
  • the fixed portion 3132A may be made of a flexible material
  • the fixing portion 3132A may also be made of a hard material to improve the fixing strength to the sealing member 313A by the hard sealing of the fixing portion 3132A and the annular supporting rib 50.
  • the seal 313A may be an integrally formed piece to facilitate the mounting and dismounting of the seal 313A and is convenient to fix.
  • the driving assembly 32A includes an electromagnet 322A and an electromagnet push rod 323A.
  • the electromagnet push rod 323A is driven by the electromagnet 322A, and the electromagnet push rod 323A is connected to the blocking member 314A, thereby controlling electromagnetic
  • the movement of the electromagnet push rod 323A can be controlled to drive the blocking member 314A to move, thereby opening or closing the pressure relief hole 21.
  • the end portion of the electromagnet push rod 323A (the upper end portion shown in FIG. 3) has a stopper portion 3231A
  • the drive assembly 32A further includes a return elastic member 324A, and the return elastic member 324A.
  • One end is abutted against the abutting portion 3231A, and the other end of the return elastic member 324A is connected to the electromagnet 322A.
  • the return elastic member 324A is deformed.
  • the return resilient member 324A is a spring that is sleeved over the electromagnet push rod 323A.
  • the return elastic member 324A can buffer the movement of the electromagnet push rod 323A.
  • the electromagnet push rod 323A can be moved by the elastic force of the return elastic member 324A.
  • a pressure-controlling elastic member 312A is disposed in the passage 3110, and both ends of the pressure-control elastic member 312A are respectively connected to the blocking member 314A and the electromagnet push rod 323A.
  • the pressure-control elastic member 312A can buffer the movement of the blocking member 314A, and can avoid the problem of poor sealing caused by assembly errors and avoid jamming.
  • the pressure control elastic member 312A in the passage 3110 when the pressure relief device 30A fails, the pressure in the cooking chamber 11 overcomes the elastic force of the pressure control elastic member 312A to open the pressure release hole 21, thereby realizing pressure relief.
  • the cooking appliance 100 is provided with a safety protection function to ensure the normal operation of the cooking appliance 100.
  • the pressure relief device 30A further includes a driving portion 321A having a threaded hole therein, and one end of the electromagnet push rod 323A (the lower end as shown in FIG. 5) has a thread so that the electromagnet push rod
  • the 323A and the driving portion 321A are connected by screwing, and the structure is simple and the connection is convenient.
  • the driving portion 321A may have a threaded cylinder, and the electromagnet push rod 323A has a screw hole.
  • the threaded cylinder of the driving portion 321A is mounted in the screw hole, and the height position of the driving portion 321A can be adjusted by the screw rotation.
  • the electromagnet push rod 323A and the driving portion 321A may be snap-connected.
  • the lower end of the side wall of the electromagnet push rod 323A has an annular groove recessed inward, and the driving portion 321A can be engaged in the annular groove, so that the electromagnet push rod 323A is fixedly coupled to the driving portion 321A.
  • the cooking appliance according to an embodiment of the present application includes the pressure relief device 30A for the cooking appliance of the above embodiment embodiment.
  • the pressure relief device 30A is disposed within the cover 20.
  • the cover 20 also has an air suction port 22, and the cooking appliance 100 further includes a vacuum device 40A that communicates with the air suction port 22 so that a negative pressure can be formed in the cooking cavity 11.
  • the cooking appliance 100 may be a rice cooker, a rice cooker, an electric pressure cooker, or the like.
  • the cooking appliance 100 includes a pot body 10, a lid body 20, a pressure relief device 30A, and a vacuum device 40A.
  • the pot body 10 has a cooking chamber 11 that is open at the top, and a heating device is provided at the bottom of the pot body 10.
  • the cover body 20 is mounted on the pot body 10.
  • the cover body 20 has a pressure relief hole 21, an air suction port 22 and a mounting opening 23.
  • An annular support rib 50 is defined directly above the pressure relief hole 21, and the annular support rib 50 defines a mounting opening 23.
  • the pressure relief device 30A and the vacuum device 40A are disposed within the cover 20, and the vacuum device 40A is a micro diaphragm pump, and the pressure relief device 30A includes a seal assembly 31A and a drive assembly 32A.
  • the seal assembly 31A includes a hold down member 311A, a seal member 314A, and a seal 313A.
  • the sealing member 313A includes a movable portion 3131A and a fixing portion 3132A.
  • the middle portion of the movable portion 3131A has a card slot 31311A.
  • the lower end side peripheral wall of the blocking member 314A has an annular groove extending along the circumferential direction of the blocking member 314A.
  • the lower end of the piece 314A forms a chuck 3141A, and the card slot 31311A is snap-connected with the chuck 3141A.
  • the fixing portion 3132A has an annular sealing groove 31321A, and the annular supporting rib 50 is in snap-fit connection with the annular sealing groove 31321A.
  • the pressing member 311A is provided at an upper portion of the fixing portion 3132A, and the outer periphery of the fixing portion 3132A is press-fitted to the upper surface of the annular supporting rib 50.
  • the upper surface of the annular support rib 50 is provided with a limiting protrusion 51, which increases the friction between the annular supporting rib 50 and the fixing portion 3132A.
  • the initial positioning of the sealing member 313A is realized by the snap connection of the movable portion 3131A and the blocking member 314A; further, the engagement of the annular sealing groove 31132A of the fixing portion 3132A with the annular supporting rib 50 is further realized. Fixing; further fixing and limiting the sealing member 313A by the pressing action of the pressing member 311A, so that the sealing member 313A is always maintained in a reliable state of achieving sealing and unsealing, preventing structural deformation in the sealing member 313A. When it falls off, it avoids seal failure and product function failure.
  • the pressure relief structure of the vacuum rice cooker in the related art is composed of an electromagnet and a small ball valve, and the pressure relief hole is blocked by the small ball valve, so that the cooking cavity is sealed; when the rice cooker needs to return from the negative pressure state to the normal pressure state, The ball is then pushed away by an electromagnet to relieve pressure.
  • small ball valves are costly and lack market competitiveness for rice cookers that only have a vacuum system.
  • the present application proposes a pressure relief device for a cooking appliance, which has a simple structure and a low production cost.
  • a pressure relief device 30B for a cooking appliance according to the present application will be described below with reference to Figs.
  • the cooking appliance 100 has a cooking chamber 11 and a pressure relief hole 21, and the pressure relief hole 21 is electrically connected to the cooking chamber 11, and the pressure relief device 30B includes: a sealing assembly 31B and Drive component 32B.
  • the seal assembly 31B is movable in the longitudinal direction (up and down direction as shown in FIG. 6) for opening and closing the pressure relief hole 21, the drive assembly 32B has a lateral push rod 321B, and the lateral push rod 321B can be laterally (FIG. 6) Moving in the left-right direction shown, the lateral push rod 321B is coupled to the seal assembly 31B so that the drive seal assembly 31B can be moved in the longitudinal direction when the lateral push rod 321B is moved in the lateral direction.
  • the lateral push rod 321B of the drive assembly 32B by the lateral push rod 321B of the drive assembly 32B, the force of the lateral movement of the lateral push rod 321B is converted into the force of the longitudinal movement of the seal assembly 31B, thereby driving the seal assembly 31B against the pressure relief hole. 21 performs the opening and closing operation; at the same time, the structure is simple, and the cost of the pressure relief device 30B is effectively reduced, thereby reducing the cost of the cooking appliance 100.
  • the lateral push rod 321B forms a drive segment 3211B having a highest point and a lowest point
  • the seal assembly 31B has a through hole 3121B
  • the through hole 3121B may extend in a lateral direction
  • the lateral push rod 321B passes through The through hole 3121B
  • the driving section 3211B can be engaged with the through hole 3121B, thereby driving the sealing assembly 31B to move by the movement of the driving section 3211B.
  • At least a portion of the drive segment 3211B can form arcuate segments having different heights.
  • the drive segment 3211B forms a slanted bar segment that extends obliquely relative to the lateral direction. That is, the driving section 3211B forms a diagonal pole section inclined with respect to the direction of the lateral push rod 321B, the driving section 3211B has the highest point and the lowest point, the highest point of the driving section 3211B is connected with the lateral push rod 321B, and the lowest point of the driving section 3211B can form a free end.
  • the driving segment 3211B moves synchronously.
  • the lateral push rod 321B can also be coupled to the lowest point of the drive segment 3211B, and the highest point of the drive segment 3211B can form a free end.
  • the highest point and the lowest point of the driving section 3211B may also be respectively connected to the two sections of the disconnected lateral push rod 321B, and when the lateral push rod 321B is moved, the driving section 3211B is synchronously moved.
  • the drive segment 3211B extends obliquely downwardly from the inside to the outside in a lateral direction, and the highest point and the lowest point are formed at both ends of the drive segment 3211B, respectively.
  • the driving section 3211B gradually extends obliquely downward from left to right in the left-right direction, and the highest point and the lowest point of the driving section 3211B are respectively formed at both ends of the driving section 3211B, thereby driving
  • the seal assembly 31B opens the pressure relief hole 21;
  • the seal assembly 31B blocks the pressure relief hole 21.
  • the projection length of the horizontal (horizontal direction in FIG. 6) of the driving segment 3211B is equal to the moving stroke of the driving lever 323B, and the projection length of the driving section 3211B in the vertical direction (up and down direction in FIG. 6) is the stroke of the sealing assembly 31B.
  • the longitudinal section of the inner wall surface of the through hole 3121B is formed in an arc curved from the center toward the center of the through hole 3121B, and the longitudinal section herein refers to a section cut along the axial direction of the through hole 3121B.
  • the middle portion refers to the intermediate portion of the inner wall surface of the through hole 3121B, that is, the middle portion of the inner wall surface of the through hole 3121B is bent toward the center of the through hole 3121B, and the inner wall of the through hole 3121B is convex toward the lower side, and the through hole 3121B is located at the lower portion.
  • the inner wall protrudes upward.
  • Such a structure can serve as a guide for facilitating the through hole 3121B to cooperate with the driving segment 3211B such that the highest point of the driving segment 3211B is in contact with the upper portion of the through hole 3121B, and the lowest point of the driving segment 3211B is in contact with the lower portion of the through hole 3121B.
  • the pressure relief device 30B further includes a valve body 33B having a passage 331B extending in the longitudinal direction.
  • the seal assembly 31B includes a longitudinal push rod 312B and a seal member 313B. The longitudinal push rod 312B moves along the longitudinal direction of the passage 331B.
  • the top end of the longitudinal push rod is provided with a through hole 3121B, and the seal member 313B is used to open and seal the pressure release hole 21
  • the outer periphery of the sealing member 313B is sealingly connected to the bottom of the valve body 33B, and the middle portion of the sealing member 313B is snap-connected with the longitudinal push rod 312B, so that the middle portion of the sealing member 313B can be moved with the longitudinal push rod 312B to open or block.
  • Pressure relief hole 21 is provided.
  • the sealing assembly 31B further includes a blocking member 314B, the blocking member 314B is disposed in the valve body 33B, and an elastic member 315B is disposed between the blocking member 314B and the longitudinal push rod 312B, and the elastic member 315B can be
  • the movement of the blocking member 314B serves as a buffering function, and at the same time, the problem of poor sealing caused by assembly errors can be avoided, and the longitudinal push rod 312B can be prevented from being stuck.
  • the elastic member 315B is a spring
  • the lower end of the blocking member 314B is snap-connected with the middle portion of the sealing member 313B.
  • the upper end of the blocking member 314B has a positioning groove for positioning the lower end of the spring, and the upper end of the spring and the longitudinal push rod The lower end of the 312B is connected.
  • the outer shape of the blocking member 314B is slightly smaller than the cross-sectional dimension of the passage 331B, so that the blocking member 314B can be disposed inside the valve body 33B.
  • the lower end of the blocking member 314B has an annular card slot, so that the longitudinal section of the blocking member 314B forms a structure with a lower end, and the middle portion of the sealing member 313B has an annular protrusion extending inwardly, and the annular protrusion can be inserted. It is connected to the card slot at the lower end of the blocking member 314B, so that the sealing member 313B and the blocking member 314B are snap-connected to prevent the sealing member 313B from coming off.
  • the drive assembly 30 is an electromagnet assembly.
  • the electromagnet assembly includes an electromagnet 322B and a drive rod 323B, and the drive rod 323B is moved by the electromagnet 322B to drive the lateral push rod 321B to move in the lateral direction.
  • the driving rod 323B is externally sleeved with a spring 324B.
  • the two ends of the spring 324B are respectively connected to the free end of the driving rod 323B and the electromagnet 322B, and the spring 324B can buffer the movement of the driving rod 323B, and when the driving rod 323B After the moving driving spring 324B is compressed, the spring 324B can replace the suction force of the electromagnet 322, so that the driving rod 323B returns to the original position by the elastic force of the spring 324B.
  • the pressure relief hole 21 can be opened by the air pressure in the cooking chamber 11 against the elastic force of the spring 324B, thereby realizing pressure relief, starting from the cooking appliance 100. To the role of safety protection, the normal operation of the cooking appliance 100 is ensured.
  • the free end of the driving rod 323B is provided with a locking portion 3231B, and one end of the lateral pushing rod 321B is snap-connected with the engaging portion 3231B.
  • the right end of the drive lever 323B forms the free end of the drive lever 323B.
  • the lateral push rod 321B is disposed at the right end of the driving rod 323B, and the left end of the lateral push rod 321B forms a hook, and the hook is snap-connected with the engaging portion 3231B, thereby fixedly connecting the lateral push rod 321B and the driving rod 323B, so that the two are realized. Synchronous movement.
  • the cooking appliance according to an embodiment of the present application includes a pot body 10, a lid body 20, and a pressure relief device 30B for a cooking appliance according to an embodiment of the present application.
  • the pot body 10 has a cooking chamber 11 with an open top.
  • the lid body 20 is mounted on the pot body 10.
  • the lid body 20 is movable between an open position and a closed position.
  • the pressure relief hole 21 is disposed on the lid body 20, and the pressure relief device 30B. It is disposed in the cover body 20.
  • the lateral push rod 321B of the drive assembly 32B drives the seal assembly 31B to move, thereby opening and closing the pressure relief hole 21, the structure is simple, and the cost of the cooking appliance is reduced.
  • the cooking appliance 100 may be a rice cooker, a rice cooker, an electric pressure cooker, or the like.
  • the cooking appliance 100 includes a pot body 10, a lid body 20, a pressure relief device 30B, and a vacuum device 40B.
  • the pot body 10 has a cooking chamber 11 that is open at the top, and a heating device is provided at the bottom of the pot body 10.
  • the lid body 20 is mounted on the pot body 10, and the lid body 20 has a pressure relief hole 21.
  • the pressure relief device 30B and the vacuum device 40B are disposed in the cover body 20, and the vacuum device 40B is a micro diaphragm pump, and the pressure relief device 30B includes a seal assembly 31B, a drive assembly 32B, and a valve body 33B.
  • the valve body 33B has a passage 331B that extends up and down.
  • the drive assembly 32B includes a lateral push rod 321B, an electromagnet 322B, a drive rod 323B, and a spring 324B.
  • the spring 324B is sleeved on the outside of the driving rod 323B.
  • the two ends of the spring 324B are respectively connected to the right end of the driving rod 323B and the electromagnet 322B.
  • the right end of the driving rod 323B is further provided with a locking portion 3231B, and the left end of the lateral pushing rod 321B.
  • the hook is formed such that the lateral push rod 321B is snap-connected to the drive rod 323B.
  • a portion of the lateral push rod 321B forms a drive segment 3211B having a highest point and a lowest point.
  • the seal assembly 31B includes a longitudinal push rod 312B, a seal member 313B, a seal member 314B, and an elastic member 315B, and the upper end of the longitudinal push rod 312B has a through hole 3121B.
  • the lower end of the longitudinal push rod 312B is disposed in the passage 331B, and an elastic member 315B is disposed between the lower portion of the longitudinal push rod 312B and the blocking member 314B.
  • the outer periphery of the sealing member 313B is interposed between the lower end of the valve body 33B and the cover body 20, and the middle portion of the sealing member 313B is engaged with the lower portion of the blocking member 314B, so that when the longitudinal push rod 312B moves downward, the elasticity can be made.
  • the piece 315B is pressed, and the pusher blocking member 314B and the seal member 313B are moved downward together to seal the pressure relief hole 21.
  • the pressure relief device 30B When it is desired to evacuate the cooking chamber 11, the pressure relief device 30B operates to effect sealing within the cooking chamber 11. Specifically, the control program controls the electromagnet 322B to be powered off, the driving rod 323B moves to the right under the elastic force of the spring 324B, drives the lateral push rod 321B to move to the right, the driving segment 3211B moves to the right, and the lowest point of the driving segment 3211B The lower portion of the hole 3121B is in contact, thereby rotating the laterally moving force into the longitudinal movement by the longitudinal push rod 312B. When the driving portion 3211B is moved to the right, the driving longitudinal push rod 312B is moved downward, thereby driving the sealing member 313B downward. Movement to seal the pressure relief hole 21 to achieve a seal within the cooking cavity 11. At this time, the vacuum device 40B can evacuate the cooking chamber 11 to form a negative pressure state in the cooking chamber 11.
  • the control program controls the electromagnet 322B to be energized, the driving rod 323B moves to the left to drive the lateral push rod 321B to the left, the driving segment 3211B moves to the left, and the highest point and the through hole of the driving segment 3211B.
  • the upper portion of the 3121B is in contact, so that the lateral movement force is rotated into the longitudinal direction by the longitudinal push rod 312B.
  • the longitudinal push rod 312B moves upward to drive the sealing member 313B to move upward to open the pressure release hole 21
  • the cooking chamber 11 is electrically connected to the outside to achieve pressure relief.
  • the above working process is only a preferred solution.
  • the driving rod 323B can also move to the right, and the sealing member 313B is moved downward to block the pressure releasing hole 21.
  • the vacuum rice cooker of the related art has a pressure relief hole and a suction hole on the cover plate.
  • the pressure release hole is sealed, and the air pressure in the cooking cavity is reduced to a negative pressure by the vacuum pump. status.
  • the rice cooker is in the boiling stage of cooking, open the pressure relief hole.
  • the pore diameter of the pressure relief hole is too small, the pressure relief noise is too large and the rice soup splashes out from the pressure relief hole, which affects the user experience; If the pore size of the pressure relief hole is too large, the vacuum adsorption force will be too large, which will inevitably increase the power requirement for the drive assembly, resulting in excessive component cost.
  • the present application proposes a cooking appliance that is low in noise and low in cost.
  • the cooking appliance 100 according to the present application will be described below with reference to FIGS. 7-11.
  • a cooking appliance 100 includes a pot body 10, a lid body 20, a micro diaphragm pump 40C, and a pressure relief device 30C.
  • the pot body 10 has a cooking chamber 11 open at the top, and the lid body 20 is mounted on the pot body 10, and the lid body 20 is movable between an open position and a closed position.
  • the lid body 20 has an air suction port 22 and a pressure relief hole 21, and a miniature
  • the diaphragm pump 40C is in communication with the suction port 22 so that a negative pressure can be formed in the cooking chamber 11, and the pressure relief device 30C is disposed in the cover body 20 for opening and sealing the pressure relief hole 21, and when the pressure relief device 30C is opened and released.
  • air can be introduced into the cooking chamber 11 through the pressure releasing hole 21, or the steam in the cooking chamber 11 can be discharged out of the cooking chamber 11 through the pressure releasing hole 21.
  • the front projection area of the pressure relief hole 21 on the bottom wall of the cooking chamber 11 is 20 mm 2 - 51 mm 2 .
  • the orthographic projection area of the pressure relief hole 21 on the bottom wall of the cooking chamber 11 may be 20 mm 2 , 25 mm 2 or 50 mm 2 .
  • the shape of the pressure relief hole 21 may be a circular shape, a square shape, or other irregular shape.
  • the cooking appliance 100 of the present application by defining the area of the pressure relief hole 21 on the bottom wall of the cooking chamber 11 to satisfy the above conditions, the pressure relief noise can be minimized, and the rice soup can be prevented from overflowing while minimizing The adsorption force of the vacuum, thereby reducing the cost of the cooking appliance 100.
  • the pressure relief hole 21 forms a circular hole, and the pressure relief hole 21 has a diameter of 5 mm to 8 mm.
  • the diameter of the pressure relief hole 21 when the diameter of the pressure relief hole 21 is set to 5 mm, the water in the cooking chamber 11 is heated to boiling, and the air pressure in the cooking chamber 11 is 0.4 kPa. At this time, the pressure relief noise is small, and the overflow phenomenon is also very high. Good improvement; when the diameter of the pressure relief hole 21 is increased to 7 mm, it is determined that the relative pressure of the foodstuff in the cooking cavity 11 in the boiling state is almost close to the normal pressure; when the diameter of the pressure relief hole 21 is increased to 8 mm, it can be maximized. The adsorption force of the vacuum is reduced to the limit, thereby reducing the cost of the cooking appliance 100.
  • the pressure relief device 30C includes a seal assembly 31C and a drive assembly 32C.
  • the seal assembly 31C is movable in the longitudinal direction (up and down direction shown in FIG. 7) so that the pressure relief hole 21 can be opened and sealed, the drive assembly 32C is coupled to the seal assembly 31C, and the drive assembly 32C is used to drive the seal assembly 31C to move, thereby Open or seal the pressure relief hole 21.
  • the pressure relief device 30C further includes a valve body 33C having a longitudinally extending passage 331C
  • the seal assembly 31C includes a valve body 311C and a seal 313C.
  • the valve body 311C is disposed in the valve body 31, the valve core 311C is movable along the length direction of the passage 331C, the seal member 313C is used to open and seal the pressure relief hole 21, and the outer circumference of the seal member 313C is sealingly connected to the bottom of the valve body 33C.
  • the middle portion of the seal member 313C is connected to the valve body 311C, so that the middle portion of the seal member 313C can be moved with the spool 311C, thereby opening and closing the pressure relief hole 21.
  • the outer periphery of the sealing member 313C has an annular groove recessed from the outside to the inside, and the cover body 20 has a hook 28 thereon, and the hook 28 is connected with the inner side of the annular groove to ensure a seal.
  • the bottom of the valve body 33C is press-fitted to the seal member 313C, and the seal member 313C is pressed to sandwich the outer peripheral edge of the seal member 313C between the lid body 20 and the valve body 33C to prevent the seal member 313C from coming off.
  • the spool 311C is formed in a column shape extending along the longitudinal direction of the passage 331C, one end of the spool 311C is coupled to the drive assembly 32C, and the other end of the spool 311C is provided with a snap portion 312C.
  • the joint 312C is snap-connected to the seal 313C.
  • the engaging portion 312C is formed at the lower end of the valve core 311C, and the engaging portion 312C is formed into a structure having a longitudinal section of an "I" shape.
  • the middle portion of the sealing member 313C has an annular projection extending inwardly, and an annular projection. It can be snapped onto the engaging portion 312C, so that the sealing member 313C and the valve core 311C are snap-connected, so that the middle portion of the sealing member 313C moves up and down with the valve core 311C, and the sealing member 313C can be prevented from falling off.
  • the sealing assembly 31C further includes a blocking member 314C, the blocking member 314C is movably disposed in the valve body 33C, and a pressure control is provided between the blocking member 314C and the valve body 311C.
  • the spring 315C and the pressure-control spring 315C can buffer the movement of the blocking member 314C, and can avoid the problem of poor sealing caused by assembly errors, and avoid the jamming of the valve core 311C.
  • the pressure control spring 315C in the valve body 33C when the pressure relief device 30C fails, the pressure in the cooking chamber 11 overcomes the elastic force of the pressure control spring 315C to open the pressure relief hole 21, thereby achieving pressure relief.
  • the cooking appliance 100 functions as a safety protection to ensure the normal operation of the cooking appliance 100.
  • the middle portion of the seal 313C is coupled to the blocking member 314C.
  • the outer shape of the blocking member 314C is slightly smaller than the cross-sectional size of the passage 331C, so that the blocking member 314C can move inside the valve body 33C.
  • the lower end of the blocking member 314C has an annular card slot, so that the cross section of the blocking member 314C forms a structure with a lower end, and the middle portion of the sealing member 313C has an annular protrusion extending inwardly, and the annular protrusion can be inserted.
  • the sealing member 313C and the blocking member 314C are snap-connected to prevent the sealing member 313C from coming off.
  • the driving assembly 32C includes an electromagnet 322C and a driving rod 321C.
  • the driving rod 321C is driven in the up and down direction and driven by the electromagnet 322C, and the driving rod 321 is connected to the sealing assembly 31C, thereby driving the sealing assembly 31C to move up and down.
  • the drive rod 321C is jacketed with a return spring 324C, and both ends of the return spring 324C are respectively connected to the end of the drive rod 321C and the electromagnet 322C.
  • the return spring 324C can buffer the movement of the drive rod 321C.
  • the drive rod 321C can be moved by the elastic force of the return spring 324C to overcome the vacuum suction in the cooking chamber 11.
  • the cover body 20 includes an inner cover 201 and a cover plate 202, and the cover plate 202 is disposed on a side of the inner cover 201 facing the cooking chamber 11, wherein the air suction port 22 and the pressure release hole 21 are disposed on the cover On the board 202.
  • the cover plate 202 further has a thermostat hole 27, so that the temperature detecting device passes the thermostat hole 27 to detect the temperature inside the cooking chamber 11 in real time, according to the cooking chamber 11
  • the change in the internal temperature adjusts the working state in a timely manner to improve the performance of the cooking appliance 100.
  • the temperature controller hole 27 and the air suction port 22 are symmetrically arranged on both sides of the pressure release hole 21, so that the difficulty of the manufacturing process can be reduced, thereby facilitating production.
  • the inner cover 201 is further provided with a sealing ring 26, and the upper end of the sealing ring 26 is fixed on the inner cover 201, and the lower end of the sealing ring 26 is connected to the cover plate 202.
  • a pressure relief chamber 61 is defined between the inner cover 201, the cover plate 202 and the sealing ring 26, and the pressure relief chamber 61 communicates with the pressure relief hole 21.
  • the inner cover 201 is further provided with a steam valve 62.
  • the steam valve 62 is electrically connected to the pressure relief chamber 61. The steam is discharged into the pressure relief chamber 61 through the pressure relief hole 21, and can be discharged through the steam valve 62. Go to the outside world.
  • the cooking appliance 100 may be a rice cooker, a rice cooker, an electric pressure cooker, or the like.
  • the cooking appliance 100 includes a pot body 10, a lid body 20, a micro diaphragm pump 40C, and a pressure relief device 30C.
  • the pot body 10 has a cooking chamber 11 open at the top, and the lid body 20 is mounted on the pot body 10.
  • the lid body 20 includes an inner lid 201 and a lid plate 202.
  • the lid plate 202 has an air suction port 22, a pressure relief hole 21 and a thermostat. Hole 27.
  • the pressure relief device 30C includes a seal assembly 31C, a drive assembly 32C, and a valve body 33C.
  • the valve body 33C has a longitudinally extending passage 331C.
  • the seal assembly 31C includes a valve core 311C, a seal member 313C, a seal member 314C, and a pressure control spring. 315C.
  • the upper end of the blocking member 314C is connected to the valve body 311C, and the pressure-control spring 315C is disposed between the blocking member 314C and the valve body 311C.
  • the lower end of the blocking member 314C has an annular card slot, and the middle portion of the sealing member 313C has an annular protrusion extending inwardly, and the sealing member 313C is inserted into the annular card slot at the lower end of the blocking member 314C.
  • the drive assembly 32C includes an electromagnet 322C and a drive rod 321C, and the electromagnet 321 is fixed to the inner cover 201 by screws.
  • the drive rod 321C is jacketed with a return spring 324C, and both ends of the return spring 324C are respectively connected to the end of the drive rod 321C and the electromagnet 322C.
  • the micro diaphragm pump 40C communicates with the suction port 22 so that a negative pressure can be formed in the cooking chamber 11.
  • the pressure relief hole 21 forms a circular hole
  • the pressure relief hole 21 has a diameter of 5 mm to 8 mm
  • the orthographic projection area of the pressure relief hole 21 on the bottom wall of the cooking chamber 11 is 20 mm 2 - 50 mm 2 .
  • the water in the cooking chamber 11 is heated to a boiling state, the amount of generated steam is continuously increased, and the pressure is also increased.
  • the high-pressure gas is discharged from the pressure relief hole 21, when When the high pressure gas passes through the pressure relief hole 21 having a small cross-sectional area, the gas flow rate is large, and the generated noise is large, and the water vapor mixture is also splashed out through the pressure relief hole 21.
  • P is the gas pressure
  • S is the projection of the pressure relief hole.
  • the area can be known.
  • the vacuum rice cooker usually installs a vacuum pump on the lid body, and the vacuum pump is used to evacuate the inside of the cooking utensil to achieve a negative pressure state, thereby improving the rice cooking effect.
  • the vacuum pump is installed at the front end of the cover body so as to be located near the control panel, the gravity of the vacuum pump greatly increases the torque when the upper cover is opened, causing the vacuum pump to loosen and fall off.
  • the present application proposes a cooking appliance that has good stability of the vacuum pump when the lid is opened.
  • a cooking appliance 100 includes a pot body 10, a lid body 20, and a vacuum pump 40D.
  • the pot body 10 has a cooking chamber 11 open at the top, and the lid body 20 is pivotally connected to the pot body 10 via a pivot shaft 203, and the lid body 20 is movable between an open position and a closed position, and the lid body 20 has an air suction port. 22.
  • the air outlet 24 and the steam passage 25, the air outlet 22, the air outlet 24, and the steam passage 25 are all in communication with the cooking chamber 11.
  • the vacuum pump 40D is disposed in the cover body 20, and the vacuum pump 40D is in communication with the suction port 22 and the air outlet port 24, respectively, so that a negative pressure can be formed in the cooking chamber 11, wherein the vacuum pump 40D is located between the pivot shaft 203 and the steam passage 25.
  • a steam valve (not shown) is provided at the steam passage 25, and the internal pressure of the cooking appliance 100 can be adjusted by the steam valve to realize steam discharge.
  • the vacuum pump 40D by disposing the vacuum pump 40D between the pivot shaft 203 and the steam passage 25, it is helpful to reduce the rotational torque of the vacuum pump 40D, thereby reducing the rotational torque when the cover 20 is opened, and at the same time improving The stability of the vacuum pump 40D when the cover 20 is opened can effectively prevent the cover from jumping.
  • the steam passage 25 is disposed at a position adjacent to the pivot shaft 203, and the vacuum pump 40D is disposed adjacent to the steam passage 25, so that when the cover is opened, the rotational torque of the vacuum pump 40D can be reduced while preventing the cover from jumping pot.
  • the vacuum pump 40D can also be disposed at a position adjacent to the pivot shaft 203, so that the rotational torque of the vacuum pump 40D can be further reduced, making it easier to open the cover.
  • the suction port 22 is disposed in the middle of the cover body 20, thus ensuring the suction port 22 in the cross section of the cooking cavity 11.
  • the orthographic projection is located in the middle so that the pumping of the vacuum pump 40D is uniform.
  • the air outlet 24 is disposed adjacent to the pivot shaft 203 and the outer circumference of the cover 30.
  • the top of the pot body 10 is provided with a sump (not shown) near the pivot axis 203, and the orthographic projection of the air outlet 24 at the top of the pot 10 is located in the sump by setting the air outlet 24 Adjacent to the outer peripheral edge of the pivot shaft 203 and the cover body 30, it is convenient to discharge the steam extracted by the vacuum pump 40D to the outside of the cooking chamber 11, and it is advantageous for collecting the condensed water formed by the condensation of the steam in the sump, and at the same time preventing the condensed water after the opening of the cover. It flows into the cooking chamber 11.
  • the vacuum pump 40D is fixed in the cover body 20 by the mounting bracket 71.
  • the mounting bracket 71 By mounting the vacuum pump 40D on the mounting bracket 71, the contact between the vacuum pump 40D and the cover body 20 is avoided, and the vacuum pump 40D can be reduced in operation. The noise can also improve stability.
  • the mounting bracket 71 includes at least two support posts 711 and a support plate 712. At least two support columns 711 are oppositely disposed, a support plate 712 is disposed at the top of at least two support columns 711, and a support plate 712 is fixedly coupled to each of the support columns 711, and a vacuum pump 40D is mounted on the support plate 712.
  • the support plate 712 may be made of an elastic material.
  • the support plate 712 may be a rubber plate, and the vacuum pump 40D is mounted on the support plate 712 made of an elastic material by using the support plate 712 of an elastic material. It can not only reduce the working noise of the vacuum pump 40D, but also avoid buffering the vacuum pump 40D when opening and closing the cover, further reducing noise.
  • the support post 711 can also be constructed of a resilient material to further reduce the noise of the vacuum pump 40D during operation.
  • At least two support columns 711 are arranged at a normal spacing perpendicular to the axis of the pivot axis 203 such that when the cover 20 is opened, at least two support columns 711 are coupled along the two support columns 711 The rotation of the line in the vertical direction reduces the moving distance of the vacuum pump 40D, thereby improving the stability of the vacuum pump 40D during the opening process.
  • At least a portion of the side surface of the support plate 712 facing the vacuum pump 40D forms a curved surface that matches the outer shape of the vacuum pump 40D, so that the vacuum pump 40D can be easily mounted on the support plate 712, further improving the vacuum pump. 40D stability during the opening process.
  • the vacuum pump 40D has a vacuum pump inlet 401 and a vacuum pump outlet 402.
  • the vacuum pump inlet 401 communicates with the suction port 22 through a connecting pipe 403, and the vacuum pump outlet 402 passes through the connecting pipe 22 and the air outlet 24 Connected.
  • the connecting pipe 22 may be a rubber pipe, thereby effectively reducing the noise generated when the airflow flows.
  • the cooking appliance 100 includes a pressure relief device for a cooking appliance according to the above embodiments.
  • the driving assembly drives the sealing assembly to move, the opening and closing of the pressure relief hole is realized, the structure is simple, and the cost of the cooking appliance is reduced.
  • a cooking appliance 100 in accordance with an embodiment of the present application may be a rice cooker, an electric pressure cooker or an electric cooker or the like.
  • the cooking appliance 100 includes a pot body 10, a lid body 20, a vacuum pump 40D, a mounting bracket 71, and a control panel 72.
  • the pot body 10 has a cooking chamber 11 open at the top, and a sump is provided at a position of the top of the pot body 10 near the pivot shaft 203.
  • the cover body 20 is pivotally connected to the pot body 10 via a pivot shaft 203 having an air suction port 22, an air outlet port 24 and a steam passage 25, and the orthographic projection of the air outlet port 24 at the top of the pot body 10 is located at the sump
  • a steam valve is provided at the steam passage 25, and the mounting bracket 71 is mounted in the cover body 20.
  • the control panel 72 is disposed at an upper portion of the cover body 20 and away from the pivot shaft 203.
  • the mounting bracket 71 includes two support columns 711 and a support plate 712.
  • the support plate 712 is fixed on the support column 711.
  • the support plate 712 is a rubber plate.
  • the upper surface of the support plate 712 forms a curved surface, and the vacuum pump 40D is mounted on the support plate. 712.
  • the vacuum pump 40D has a vacuum pump inlet 401 and a vacuum pump outlet 402.
  • the vacuum pump inlet 401 communicates with the suction port 22 through a connecting pipe 403, and the vacuum pump outlet 402 communicates with the air outlet 24 through the connecting pipe 22.
  • the gas in the cooking chamber 11 is withdrawn through the air suction port 22, and is discharged through the air outlet 24, thereby forming a negative pressure in the cooking chamber 11, prompting the tiny bubbles inside the cooking chamber 11 to quickly come out, and letting Water is more likely to enter the interior of the rice to achieve rapid water absorption.
  • the steam passage 25 is disposed at a position adjacent to the pivot shaft 203
  • the vacuum pump 40D is disposed between the pivot shaft 203 and the steam passage 25 and adjacent to the pivot shaft 203.
  • the suction port of the vacuum pump needs to be provided with an anti-blocking cover to prevent rice grains and the like from blocking the suction port.
  • the anti-blocking cover usually adopts a porous plastic part.
  • the anti-blocking cover of the plastic part is difficult to be installed, easy to install and disassemble, difficult to clean, etc. when installed with the movable cover, and is prone to anti-blocking after long-term use.
  • the hole of the cover becomes small, resulting in a vacuum that is not smooth and a large noise.
  • the present application proposes a cooking appliance that has a good anti-blocking effect and a smooth air pumping.
  • the cooking appliance 100 according to the present application will be described below with reference to FIGS. 15-19.
  • a cooking appliance 100 includes a pot body 10, a lid body 20, an air extracting device 40E, and a blocking member 81.
  • the pot body 10 has a cooking chamber 11 with an open top.
  • the lid body 20 is mounted on the pot body 10.
  • the lid body 20 is movable between an open position and a closed position.
  • the lid body 20 has a suction port 22, and the suction device 40E and the pumping device 40E
  • the gas ports 22 are in communication, and when the air suction device 40E is evacuated, a negative pressure can be formed in the cooking chamber 11.
  • the anti-blocking member 81 is disposed at the air suction port 22, and when the air extracting device 40E is in operation, at least one air flow channel is defined between the anti-blocking member 81 and the cover body 20, the air flow channel and the cooking cavity 11 and the air suction port The 22 phases are connected, and the cross-sectional area S1 of each airflow passage is less than or equal to 4 mm 2 .
  • the air extracting device 40E can define an air flow passage with the anti-blocking member 81 during operation, and define a cross-sectional area of the airflow passage, thereby effectively preventing the rice grain and the like from being large.
  • the granular food material blocks the air suction port 22, and the anti-blocking function is realized to ensure smooth air pumping, thereby improving the user experience of the cooking appliance 100.
  • the anti-blocking member 81 is a flexible member, and the anti-blocking member 81 is snapped at the air suction port 22.
  • a flexible anti-blocking member 81 its soft characteristics are utilized to facilitate its deformation so that it can be easily installed or removed.
  • one end of the anti-blocking member 81 may have an annular hook slightly larger than the aperture of the air suction port 22, and the annular hook is snap-connected with the air suction port 22 to fix the anti-blocking member 81 on the cover body 20.
  • the cover 20 includes an inner cover 201 and a cover 202, and the cover 202 is coupled to the side of the inner cover 201 facing the cooking chamber 11, that is, the cover 202 is located at the inner cover 201.
  • the underside is shown in FIGS. 16 and 17, in some examples, the cover 20 includes an inner cover 201 and a cover 202, and the cover 202 is coupled to the side of the inner cover 201 facing the cooking chamber 11, that is, the cover 202 is located at the inner cover 201.
  • the underside is shown in FIGS. 16 and 17, in some examples, the cover 20 includes an inner cover 201 and a cover 202, and the cover 202 is coupled to the side of the inner cover 201 facing the cooking chamber 11, that is, the cover 202 is located at the inner cover 201.
  • the underside is shown in FIGS. 16 and 17, in some examples, the cover 20 includes an inner cover 201 and a cover 202, and the cover 202 is coupled to the side of the inner cover 201 facing the cooking chamber 11, that is, the
  • the anti-blocking member 81 includes a fixing portion 811 and an anti-blocking portion 812.
  • the fixing portion 811 is located on the upper side of the cover plate 202, and at least a part of the cross-sectional area of the fixing portion 811 is larger than the cross-sectional area of the air suction port 22, so that the fixing portion 811 can be engaged with the cover plate 202, the anti-blocking portion 812 and the fixing portion.
  • the 811 is connected, the anti-blocking portion 812 is located on the lower side of the cover plate 202, and the anti-blocking portion 812 has at least one groove 813 facing the side of the cover plate 202.
  • the air flow passage can be defined, and the cross-sectional area of the groove 813 is S1, and S1 is less than or equal to 4 mm 2 , so that the large-grain food such as rice grains can be effectively blocked from blocking the groove 813.
  • the anti-blocking portion 812 includes a plurality of grooves 813 distributed along the circumferential direction of the fixing portion 811 to form a plurality of spaced-apart air flow channels. Thereby, the gas can be introduced into the suction port 22 from a plurality of directions, thereby improving the pumping efficiency.
  • the total cross-sectional area S2 of the plurality of grooves 813 is greater than or equal to 7 mm 2 , so that the working efficiency of the air extracting device 40E can be effectively ensured, and problems such as poor pumping and high noise are avoided.
  • the groove 813 may be formed in a square shape.
  • the cross section of the groove 813 may also be formed in a circular shape or a V shape or the like to facilitate molding and processing of the groove 813.
  • the junction of the fixing portion 811 and the anti-blocking portion 812 has an annular groove 814 for escaping the suction port 22, the groove 813 and the annular groove 814.
  • the gas is communicated such that the gas in the cooking chamber 11 communicates with the annular groove 814 through the recess 813.
  • the air extracting device 40E When the air extracting device 40E is in operation, the gas can smoothly communicate with the air extracting device 40E through the air extracting port 22.
  • the fixing portion 811 is formed in a truncated cone shape so that the fixing portion 811 can be attached to the upper side of the cover plate 202, and a part of the fixing portion 811 forms an inclined guide surface for facilitating the cover plate 202.
  • the card is fixedly fixed to prevent the anti-blocking member 81 from coming off.
  • the lower side of the circular portion of the fixing portion 811 can be connected to the upper side of the cover plate 202, and a sealed cavity can be formed in the cooking chamber 11.
  • the fixing portion 811 may also be formed in a conical shape to facilitate snap-fit connection with the cover plate 202 to prevent the blocking member 81 from falling off; at the same time, the cooking cavity 11 may be sealed.
  • the inner cover 201 is provided with a connection joint 82 having a connection passage 821 that is electrically connected to the suction port 22, and the suction device 40E is in communication with the connection passage 821.
  • a sealing ring 60 is further disposed between the inner cover 201 and the cover plate 202. The upper end of the sealing ring 60 is hung on the inner cover 201 and is located between the connecting joint 82 and the inner cover 201, and the connecting joint 82 can seal the sealing ring 60. Further pressing on the inner cover 201 improves the sealing between the seal ring 60 and the inner cover 201 and the joint 82.
  • the lower end of the sealing ring 60 is abutted against the cover plate 202, thereby forming a sealed cavity between the cover plate 202 and the inner cover 201.
  • the air suction port 22 and the connecting passage 821 are disposed in the cavity, so that the air extracting device 40E passes.
  • the suction port 22 and the connecting passage 821 pump the inside of the cooking chamber 11, and the sealing property is good during the pumping process.
  • the air extracting device 40E is a vacuum pump, which has a simple structure and is convenient to install.
  • the cooking appliance 100 includes a pressure relief device for a cooking appliance according to the above embodiments.
  • the driving assembly drives the sealing assembly to move, the opening and closing of the pressure relief hole is realized, the structure is simple, and the cost of the cooking appliance is reduced.
  • the cooking appliance 100 may be a rice cooker, an electric pressure cooker, an electric cooker, or the like.
  • the cooking appliance 100 includes a pot body 10, a lid body 20, a vacuum pump, and a blocking member 81.
  • the pot body 10 has a cooking chamber 11 that is open at the top
  • the lid body 20 includes an inner lid 201 and a lid plate 202, and the lid plate 202 is located on the lower side of the inner lid 201.
  • the cover plate 202 has an air suction port 22, and the inner cover 201 is provided with a connection joint 82.
  • the connection joint 82 has a connection passage 821, and the connection passage 821 is electrically connected to the air suction port 22.
  • a sealing ring 60 is disposed between the inner cover 201 and the cover plate 202.
  • the upper end of the sealing ring 60 is fixed to the inner cover 201, and the lower end is connected to the cover plate 202.
  • the vacuum pump is fixed to the inner cover 201 via a joint 82, and the air inlet of the vacuum pump is electrically connected to the connecting passage 821.
  • the anti-blocking member 81 is fastened to the air suction port 22, and the anti-blocking member 81 is a flexible member.
  • the anti-blocking member 81 includes a fixing portion 811 and an anti-blocking portion 812.
  • a portion of the fixing portion 811 is formed in a truncated cone shape, and the upper side of the anti-blocking portion 812 has four grooves 813 and an annular groove 814 extending in the circumferential direction of the anti-blocking portion 812, and the annular groove 814 is disposed in the groove
  • the middle of the 813 is located at the junction of the fixing portion 811 and the anti-blocking portion 812 for avoiding the air suction port 22, and the groove 813 is electrically connected to the annular groove 814.
  • the cross-sectional area of the groove 813 is S1, and S1 is less than or equal to 4 mm 2 .
  • the total cross-sectional area S2 of the four grooves 813 is greater than or equal to 7 mm 2 .
  • the anti-blocking member 81 moves upward under the pressure difference between the cover body 20 and the cooking chamber 11, and the gas in the cooking chamber 11 enters the air suction port through the air flow passage formed between the recess 813 and the cover body 20. 22, thereby being electrically connected to the intake port of the vacuum pump through the connecting passage 821, and the vacuum pump evacuates the inside of the cooking chamber 11 to form a negative pressure in the cooking chamber 11.
  • the vacuum pump stops working, and the anti-blocking member 81 moves downward under the pressure difference between the cover body 20 and the cooking chamber 11, and a part of the fixing portion 811 will be the suction port 22
  • the plug is closed so that a sealed cavity is formed in the cooking chamber 11, and the cooking chamber 11 can be maintained in a negative pressure state.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Lift Valve (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

一种用于烹饪器具(100)的泄压装置(30A,30B,30C)和烹饪器具(100),烹饪器具(100)具有泄压孔(21),泄压装置(30A,30B,30C)包括:密封组件(31A,31B,31C),密封组件(31A,31B,31C)沿纵向可移动或密封组件(31A,31B,31C)包括沿纵向可移动的封堵件(314A,314B,314C),用于打开和封堵泄压孔(21);驱动组件(32A,32B,32C),驱动组件(32A,32B,32C)与密封组件(31A,31B,31C)连接,用于驱动密封组件(31A,31B,31C)打开或封堵泄压孔(21)。

Description

用于烹饪器具的泄压装置和烹饪器具 技术领域
本申请涉及烹饪设备技术领域,更具体地,涉及一种用于烹饪器具的泄压装置和烹饪器具。
背景技术
现有的真空电饭煲包括真空装置和泄压结构,通过真空装置使烹饪器具内实现负压状态,从而提高煮饭效果,当电饭煲需要从负压状态回到常压状态时,通过泄压结构进行泄压。然而,现有的真空电饭煲仍然存在许多不足,例如密封性不够好、生产成本较高等,存在改进的空间。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。为此,本申请提出一种用于烹饪器具的泄压装置,所述泄压装置的密封性能更好,使用寿命更长。
本申请还提出一种烹饪器具。
根据本申请第一方面的用于烹饪器具的泄压装置,所述烹饪器具具有泄压孔,所述泄压装置包括:密封组件,用于打开和封堵所述泄压孔;驱动组件,所述驱动组件与所述密封组件连接,用于驱动所述密封组件打开或封堵所述泄压孔。
根据本申请的用于烹饪器具的泄压装置,通过驱动组件驱动密封组件或密封组件的封堵件移动,从而实现泄压孔的开闭,结构简单,降低了烹饪器具的成本。
根据本申请的一些实施例,所述烹饪器具的盖体具有所述泄压孔和位于所述泄压孔正上方的安装口,所述密封组件包括沿纵向可移动的封堵件和设在所述安装口处的密封件,所述密封件的中部与所述封堵件连接以随所述封堵件移动,所述密封件的外周缘密封连接在所述安装口处,所述驱动组件与所述密封组件的封堵件连接,用于驱动所述密封组件的封堵件移动。
根据本申请的用于烹饪器具的泄压装置,通过将密封件固定在安装口处,使密封件的中部与封堵件连接,并将密封件的外周缘密封连接在安装口上,实现密封件的多阶连接固定,防止密封件脱落,提高密封件的密封性,进而提高泄压装置的密封性和使用性能。
在一些示例中,所述密封件包括:活动部,所述活动部与所述封堵件连接以随所述封堵件移动;固定部,所述固定部与所述活动部连接且形成沿所述活动部的周向延伸的环形,所述固定部密封连接在所述安装口处。
在一些示例中,所述封堵件形成沿所述纵向延伸的柱状,所述封堵件的下端与所述活动部卡接相连。
在一些示例中,所述封堵件的下端侧周壁具有沿其周向延伸的环形槽以在所述封堵件的 下端形成卡头,所述活动部的中部具有与所述卡头卡接的卡槽。
在一些示例中,所述安装口由设在所述泄压孔正上方的环形支撑筋限定出,所述固定部具有开口朝向所述环形支撑筋的环形密封槽,所述环形支撑筋与所述环形密封槽卡接相连,所述密封组件还包括:压紧件,所述压紧件适于可拆卸地设在所述安装口处以将所述固定部的外周缘压设在所述环形支撑筋的上表面,所述环形支撑筋的上表面设有限位凸起以增大所述环形支撑筋与所述密封件之间的摩擦力。
在一些示例中,所述活动部由柔性材料制成,所述固定部由柔性材料或硬性材料制成,所述密封件为一体成型件。
根据本申请的另一些实施例,所述驱动组件还包括:电磁铁和由所述电磁铁驱动的电磁铁推杆,所述电磁铁推杆与所述封堵件连接,用于推动所述封堵件移动,所述电磁铁推杆的端部具有止抵部,所述驱动组件还包括复位弹性件,所述复位弹性件的两端分别与所述止抵部和所述电磁铁止抵连接,所述电磁铁推杆与所述封堵件之间连有控压弹性件。
根据本申请的用于烹饪器具的泄压装置,通过驱动组件的横向推杆,将横向推杆的横向运动的作用力转为密封组件的纵向运动的作用力,从而驱动密封组件对泄压孔进行开闭的动作;同时结构简单,有效地降低了泄压装置的成本。
在一些示例中,所述烹饪器具具有烹饪腔和与所述烹饪腔导通的泄压孔,所述密封组件沿纵向可移动,用于打开和封堵所述泄压孔,所述驱动组件具有沿横向可移动的横向推杆,所述横向推杆与所述密封组件连接以在所述横向推杆沿所述横向移动时驱动所述密封组件沿所述纵向移动。
在一些示例中,所述横向推杆的至少一部分形成具有最高点和最低点的驱动段,所述密封组件具有沿所述横向延伸的通孔,所述横向推杆穿过所述通孔且在所述驱动段与所述通孔配合时驱动所述密封组件移动。
在一些示例中,所述驱动段形成相对于所述横向倾斜延伸的倾斜杆段,其中,所述驱动段沿所述横向从内向外逐渐向下倾斜延伸,所述最高点和所述最低点分别形成在所述驱动段的两端。
在一些示例中,所述通孔内壁面的纵截面形成中部向所述通孔的中心弯曲的弧形。
在一些示例中,所述泄压装置还包括:阀体,所述阀体具有沿所述纵向延伸的通道,所述密封组件包括:纵向推杆,所述纵向推杆沿所述通道的长度方向移动,所述纵向推杆的顶端设有所述通孔;用于打开和封堵所述泄压孔的密封件,所述密封件的外周缘连接在所述阀体的底部,所述密封件的中部与所述纵向推杆连接以随所述纵向推杆移动。
根据本申请进一步的实施例,所述密封组件还包括:封堵件,所述封堵件设在所述阀体内且所述封堵件与所述纵向推杆之间设有弹性件,所述密封件的中部与所述封堵件连接,其中,所述封堵件的外形尺寸略小于所述通道的横截面尺寸,且所述封堵件与所述密封件的中部卡接相连。
在一些示例中,所述驱动组件为电磁铁组件且包括电磁铁和由所述电磁铁驱动的驱动杆,所述驱动杆外套有弹簧,且所述弹簧的两端分别与所述驱动杆的自由端和所述电磁铁止 抵连接,其中,所述驱动杆的自由端设有卡接部,所述横向推杆的一端与所述卡接部卡接相连。
根据本申请第二方面的烹饪器具,包括根据上述实施例所述的用于烹饪器具的泄压装置。通过采用上述泄压装置,通过驱动组件驱动密封组件移动,实现泄压孔的开闭,结构简单,降低了烹饪器具的成本。
在一些示例中,烹饪器具还包括:锅体,所述锅体具有顶部敞开的烹饪腔;盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述泄压孔设于所述盖体,所述泄压装置设于所述盖体内。
在一些示例中,所述盖体具有抽气口,所述烹饪器具还包括:真空装置,所述真空装置与所述抽气口连通以将所述烹饪器具的烹饪腔内形成负压。
根据本申请第三方面的烹饪器具,包括:锅体,所述锅体具有顶部敞开的烹饪腔;盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述盖体具有抽气口和泄压孔;微型隔膜泵,所述微型隔膜泵与所述抽气口连通以将所述烹饪腔内形成负压;用于打开和封堵所述泄压孔的泄压装置,所述泄压装置设于所述盖体内以在打开所述泄压孔时、使空气通过所述泄压孔进入所述烹饪腔内或使蒸汽通过所述泄压孔排出所述烹饪腔外,其中所述泄压孔在所述烹饪腔底壁上的正投影面积为20mm 2-51mm 2
根据本申请的烹饪器具,通过限定泄压孔在烹饪腔底壁上的正投影面积满足上述条件,从而可以最大限度地降低泄压噪音,避免米汤溢出,同时又能最大限度地降低真空的吸附力,从而降低烹饪器具的成本。
根据本申请的一些实施例,所述泄压孔形成圆孔,且所述泄压孔的直径为5mm-8mm。
根据本申请的一些实施例,所述泄压装置包括:密封组件,所述密封组件沿纵向可移动,用于打开和封堵所述泄压孔;驱动组件,所述驱动组件与所述密封组件连接,用于驱动所述密封组件移动以封堵所述泄压孔。
根据本申请进一步的实施例,所述泄压装置还包括:阀体,所述阀体具有沿所述纵向延伸的通道,所述密封组件包括:阀芯,所述阀芯设在所述阀体内且沿所述通道的长度方向可移动;用于打开和封堵所述泄压孔的密封件,所述密封件的外周缘连接在所述阀体的底部,所述密封件的中部与所述阀芯连接以随所述阀芯移动,其中,所述阀芯形成沿所述通道的长度方向延伸的柱状,且所述阀芯的一端与所述驱动组件连接,所述阀芯的另一端设有与所述密封件卡接相连的卡接部;和/或,所述密封组件还包括:封堵件,所述封堵件可移动地设在所述阀体内且所述封堵件与所述阀芯之间设有控压弹簧,所述密封件的中部与所述封堵件连接。
在一些示例中,所述驱动组件包括电磁铁和由所述电磁铁驱动的驱动杆,所述驱动杆与所述密封组件连接,所述驱动杆外套有复位弹簧,且所述复位弹簧的两端分别与所述驱动杆的端部和所述电磁铁止抵连接。
在一些示例中,所述盖体包括内盖和设在所述内盖的朝向所述烹饪腔一侧的盖板,所述抽气口和所述泄压孔设在所述盖板上,其中,所述内盖朝向所述盖板的一侧设有与所述盖板 止抵连接的密封圈,所述内盖、所述盖板和所述密封圈之间限定出与所述泄压孔连通的泄压腔,所述内盖还设有蒸汽阀,所述蒸汽阀与所述泄压腔导通。
根据本申请第四方面的烹饪器具,包括:锅体,所述锅体具有顶部敞开的烹饪腔;盖体,所述盖体通过枢转轴在打开位置和关闭位置之间可枢转地连接至所述锅体,所述盖体具有与所述烹饪腔连通的抽气口、出气口和蒸汽通道;真空泵,所述真空泵设在所述盖体内且分别与所述抽气口和所述出气口连通以将所述烹饪腔内形成负压,所述真空泵位于所述枢转轴与所述蒸汽通道之间。
根据本申请的烹饪器具,通过将真空泵设置在枢转轴与蒸汽通道之间,有助于减小真空泵的旋转扭矩,从而减小盖体开盖的旋转扭矩;同时提高了真空泵在盖体开盖时的稳固性,可以有效地防止开盖跳煲。
根据本申请的一些实施例,所述蒸汽通道邻近所述枢转轴设置,所述真空泵邻近所述枢转轴或所述蒸汽通道设置。
根据本申请的一些实施例,在垂直于所述枢转轴的轴线的法向上、所述抽气口设在所述盖体的中部。
根据本申请的一些实施例,所述出气口邻近所述枢转轴和所述盖体的外周缘设置。
根据本申请的一些实施例,所述真空泵通过安装支架固定于所述盖体内,其中,所述安装支架包括:至少两个相对布置的支撑柱和支撑板,所述支撑板设在至少两个所述支撑柱的顶部且与每个所述支撑柱连接,所述真空泵安装于所述支撑板上,至少两个所述支撑柱沿垂直于所述枢转轴的轴线的法向间隔布置;和/或,所述支撑板的朝向所述真空泵的一侧表面的至少一部分形成与所述真空泵的外形相适配的弧面。
根据本申请的一些实施例,所述真空泵具有真空泵进口和真空泵出口,所述真空泵进口通过连接管与所述抽气口连通,所述真空泵出口通过连接管与所述出气口连通。
根据本申请的一些实施例,烹饪器具包括根据上述实施例所述的用于烹饪器具的泄压装置。
根据本申请第五方面的烹饪器具,包括:锅体,所述锅体具有顶部敞开的烹饪腔;盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述盖体具有抽气口;抽气装置,所述抽气装置与所述抽气口连通以将所述烹饪腔内形成负压;防堵件,所述防堵件设在所述抽气口处且所述防堵件在所述抽气装置工作时、与所述盖体之间限定出至少一个与所述烹饪腔和所述抽气口连通的气流通道,每个所述气流通道的横截面面积S1小于等于4mm 2
根据本申请的烹饪器具,通过设置防堵件,使抽气装置在工作时可以与防堵件限定出气流通道,并限定气流通道的横截面积,从而能够有效阻止米粒等大颗粒食材堵塞抽气口,实现防堵功能,保证抽气顺畅,从而提高烹饪器具的用户体验。
根据本申请的一些实施例,所述防堵件为柔性件,且所述防堵件卡接在所述抽气口处;和/或,所述抽气装置为真空泵。
根据本申请的一些实施例,所述盖体包括内盖和连接在所述内盖的朝向所述烹饪腔一侧 的盖板,所述防堵件包括:固定部,所述固定部的至少一部分横截面面积大于所述抽气口的横截面面积且位于所述盖板的朝向所述内盖的一侧;防堵部,所述防堵部与所述固定部连接且位于所述盖板的背向所述内盖的一侧,所述防堵部朝向所述盖板的一侧具有至少一个凹槽以在所述抽气装置工作时与所述盖板限定出所述气流通道,所述凹槽的横截面面积为所述S1,其中,所述凹槽包括多个,且多个所述凹槽沿所述固定部的周向间隔分布,多个所述凹槽的横截面面积总和S2大于等于7mm 2;和/或,所述凹槽形成为方形、圆形、V形;和/或,所述固定部与所述防堵部的连接处具有用于避让所述抽气口的环形凹槽,所述凹槽连通至所述环形凹槽;和/或,所述固定部的至少一部分形成圆台状或圆锥状。
根据本申请的一些实施例,还包括:设在所述内盖的连接接头,所述连接接头具有与所述抽气口导通的连接通道,所述抽气装置连通至所述连接通道。
本申请的附加方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解,其中:
图1是根据本申请的烹饪器具的结构示意图;
图2是图1中A部的放大图;
图3是根据本申请另一个实施例的泄压装置的结构示意图;
图4是根据本申请的烹饪器具的结构示意图;
图5是根据本申请的烹饪器具的泄压装置在盖体上的安装示意图;
图6是根据本申请的泄压装置的结构示意图;
图7是根据本申请的烹饪器具的结构示意图;
图8是根据本申请的泄压装置在盖体上的安装示意图;
图9是根据本申请的盖板的结构示意图;
图10是图7中所示的C部的放大图;
图11是根据本申请另一个实施例的泄压装置的结构示意图;
图12是根据本申请的烹饪器具的结构示意图,其中,盖***于关闭状态;
图13是根据本申请的烹饪器具的结构示意图,其中,盖***于打开状态;
图14是根据本申请的真空泵在盖体上的安装示意图;
图15是根据本申请的烹饪器具的结构示意图;
图16是图15中E1部的放大图;
图17是根据本申请的防堵件的结构示意图;
图18是根据图17中的防堵件的俯视图;
图19是沿图18中E2-E2线的局部剖视图。
附图标记:
烹饪器具100,
锅体10,烹饪腔11,
盖体20,内盖201,盖板202,枢转轴203,
泄压孔21,抽气口22,安装口23,出气口24,蒸汽通道25,密封圈26,温控器孔27,卡钩28,
泄压装置30A、30B、30C,
密封组件31A、31B、31C,
压紧件311A,环形通道3110A,阀芯311C,控压弹性件312A,纵向推杆312B,通孔3121B,卡接部312C,密封件313A、313B、313C,活动部3131A,卡槽31311A,固定部3132A,环形密封槽31321A,封堵件314A、314B、314C,卡头3141A,弹性件315B,控压弹簧315C,
驱动组件32A、32B、32C,
驱动部321A,通道3211A,横向推杆321B,驱动段3211B,驱动杆321C,电磁铁322A、322B、322C,电磁铁推杆323A,驱动杆323B,止抵部3231A,卡接部3231B,复位弹性件324A,弹簧324B,复位弹簧324C,阀体33B、33C,通道331B、331C,
真空装置40A、40B,微型隔膜泵40C,真空泵40D,真空泵进口401,真空泵出口402,连接管403,抽气装置40E,
环形支撑筋50,限位凸起51,
泄压腔61,蒸汽阀62,
安装支架71,支撑柱711,支撑板712,控制面板72,
防堵件81,固定部811,防堵部812,凹槽813,环形凹槽814,连接接头82,连接通道821,密封件83。
具体实施方式
下面详细描述本申请的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,仅用于解释本申请,而不能理解为对本申请的限制。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。在本申请的描述中,除非另有说明,“多个”的含义是两个或两个以上。
在本申请的描述中,需要说明的是,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接 相连,可以是两个元件内部的连通。对于本领域的普通技术人员而言,可以具体情况理解上述术语在本申请中的具体含义。
相关技术中的真空电饭煲的泄压装置由电磁铁、小球阀和密封圈组成,通过小球阀将泄压孔堵住,从而使烹饪腔内得到密封;当电饭煲需要从负压状态回到常压状态时,再通过电磁铁把小球推开,从而进行泄压。然而,泄压装置中的密封圈在使用时存在易脱落的隐患,且在经常使用一段时间后会发生老化变形,从而影响结构的密封性。
为解决现有技术中存在的技术问题之一。本申请提出一种用于烹饪器具的泄压装置,所述泄压装置的密封性能更好,使用寿命更长。
下面结合图1至图19详细描述根据本申请的用于烹饪器具的泄压装置和烹饪器具100。
根据本申请的用于烹饪器具的泄压装置包括密封组件和驱动组件。烹饪器具100具有泄压孔21,密封组件沿纵向可移动或密封件包括沿纵向可移动的封堵件,用于打开和封堵所述泄压孔21,所述驱动组件与所述密封组件连接,用于驱动所述密封组件打开或封堵所述泄压孔21。例如,驱动组件可以驱动密封组件移动以打开或封堵泄压孔21,或者,驱动组件可以驱动密封组件的封堵件移动以打开或封堵泄压孔21。
根据本申请的用于烹饪器具的泄压装置,通过驱动组件驱动密封组件或密封组件的封堵件移动,从而实现泄压孔21的开闭,结构简单,降低了烹饪器具的成本。
下面参考图1-图3描述根据本申请的用于烹饪器具的泄压装置30A。
如图1-图3所示,根据本申请一个实施例的用于烹饪器具的泄压装置30A,烹饪器具100的盖体20具有泄压孔21和安装口23,安装口23位于泄压孔21的正上方,泄压装置30A包括:密封组件31A和驱动组件32A。
密封组件31A用于打开和关闭泄压孔21,密封组件31A包括封堵件314A和密封件313A,封堵件314A可以沿纵向移动,密封件313A设置在安装口23处,密封件313A的中部与封堵件314A连接,从而可以随封堵件314A移动,密封件313A的外周缘密封连接在安装口23处。驱动组件32A与封堵件314A连接,用于驱动封堵件314A移动,从而带动密封件313A移动以打开或关闭泄压孔21。
根据本申请的用于烹饪器具的泄压装置30A,通过将密封件313A固定在安装口23处,使密封件313A的中部与封堵件314A连接,并将密封件313A的外周缘密封连接在安装口23上,实现密封件313A的多阶连接固定,防止密封件313A脱落,提高密封件313A的密封性,进而提高泄压装置30A的密封性和使用性能。
如图2和图3所示,根据本申请的一个实施例,密封件313A包括:活动部3131A和固定部3132A,活动部3131A与封堵件314A连接,从而可以随封堵件314A移动,固定部3132A与活动部3131A连接,且固定部3132A形成沿活动部3131A的周向延伸的环形,固定部3132A密封连接在安装口23处。
在一些示例中,封堵件314A形成沿纵向(图2中的上下方向)延伸的柱状,封堵件314A的下端与活动部3131A卡接相连。通过封堵件314A与活动部3131A卡接实现 密封件311的稳定密封,并防止密封件311的脱落。
在一些具体的示例中,封堵件314A的下端侧周壁具有环形槽,环形槽沿封堵件314A的周向延伸,从而在封堵件314A的下端形成卡头3141A,活动部3131A的中部具有与卡头3141A卡接的卡槽31311A,从而使活动部3131A卡接在封堵件314A上,与封堵件314A实现同步移动。
如图3所示,在一些具体的示例中,泄压孔21的正上方具有环形支撑筋50,环形支撑筋50限定出安装口23,固定部3132A上具有环形密封槽31321A,环形密封槽31321A的开口朝向环形支撑筋50的方向,环形支撑筋50与环形密封槽31321A卡接相连。通过将环形密封槽31321A卡接在环形支撑筋50处,从而使密封件311固定在安装口23处,进一步防止密封件311的脱落,提高稳定性。
其中,环形密封槽31321A的径向尺寸不小于环形支撑筋50的径向尺寸,从而使固定部3132A与环形支撑筋50的卡接更加牢固,提高密封件313A密封性。
在一些示例中,密封组件31A还包括:压紧件311A,压紧件311A可拆卸地设在安装口23处,压紧件311A设置在固定部3132A的上部,从而可以将固定部3132A的外周缘压设在环形支撑筋50的上表面。通过压紧件311A的压紧作用,实现对密封件313A的挤压式安装,提高密封件313A固定的稳定性。
在进一步的示例中,环形支撑筋50的上表面设有限位凸起51,限位凸起51可以增大环形支撑筋50与密封件313A之间的摩擦力。通过限位凸起51的限位作用,进一步地对密封件311进行挤压,防止密封件311的脱落,提高了稳定性。
在一些示例中,环形密封槽31321A的内周壁上还可以设为带有蚀纹等磨砂式的结构,从而增大密封件313A与环形支撑筋50之间的摩擦力。
根据本申请的一个示例,活动部3131A由柔性材料制成,固定部3132A可以由柔性材料制成。当然,固定部3132A也可以采用硬性材料制成,从而通过固定部3132A与环形支撑筋50的硬密封,提高对密封件313A的固定强度。
根据本申请的一个示例,密封件313A可以为一体成型件,从而便于密封件313A安装与拆卸,且固定方便。
根据本申请的一个实施例,驱动组件32A包括电磁铁322A和电磁铁推杆323A,电磁铁推杆323A由电磁铁322A驱动,且电磁铁推杆323A与封堵件314A连接,从而通过控制电磁铁322A的通电与断电,可以控制电磁铁推杆323A的移动,从而驱动封堵件314A移动,进而打开或封堵泄压孔21。
如图3所示,在一些示例中,电磁铁推杆323A的端部(如图3所示的上端端部)具有止抵部3231A,驱动组件32A还包括复位弹性件324A,复位弹性件324A的一端与止抵部3231A止抵连接,复位弹性件324A的另一端与电磁铁322A止抵连接。当电磁铁推杆323A相对于电磁铁322A移动时,复位弹性件324A发生形变。
在一些具体的示例中,复位弹性件324A为弹簧,弹簧套设在电磁铁推杆323A上。复位弹性件324A可以对电磁铁推杆323A的移动起到缓冲作用,当电磁铁321断电后, 电磁铁推杆323A可以依靠复位弹性件324A的弹力移动。
在一些示例中,通道3110内设有控压弹性件312A,控压弹性件312A的两端分别与封堵件314A和电磁铁推杆323A止抵连接。控压弹性件312A可以对封堵件314A的移动起到缓冲的作用,同时可以避免装配误差导致密封不良的问题,避免出现卡住的情况。并且,通过在通道3110内设置控压弹性件312A,可以在泄压装置30A发生失效时,通过烹饪腔11内的气压克服控压弹性件312A的弹力而打开泄压孔21,实现泄压,对烹饪器具100起到安全保护的作用,保证烹饪器具100的正常工作。
在一些具体的示例中,泄压装置30A还包括驱动部321A,驱动部321A上具有螺纹孔,电磁铁推杆323A的一端(如图5所示的下端)具有螺纹,从而使电磁铁推杆323A与驱动部321A通过螺纹配合连接,结构简单,连接方便。
当然,驱动部321A也可以具有螺纹柱体,电磁铁推杆323A上具有螺纹孔,驱动部321A的螺纹柱体安装在螺纹孔内,通过螺纹旋转还可以调节驱动部321A的高度位置。
在另一些示例中,电磁铁推杆323A与驱动部321A还可以卡接连接。具体地,电磁铁推杆323A侧壁的下端具有向内侧凹陷的环状凹槽,驱动部321A可以卡接在环状凹槽内,从而使电磁铁推杆323A与驱动部321A固定连接。
根据本申请实施例的烹饪器具包括上述实施例实施例的用于烹饪器具的泄压装置30A。泄压装置30A设置在盖体20内。通过采用上述泄压装置30A,提高密封件313A的固定能力,避免密封件313A脱落,从而提高了烹饪器具100的使用性能。
在一些示例中,盖体20上还具有抽气口22,烹饪器具100还包括真空装置40A,真空装置40A与抽气口22连通,从而可以将烹饪腔11内形成负压。
参照图1至图3,根据本申请一个具体实施例的烹饪器具100可以是电饭锅、电饭煲、电压力锅等。
烹饪器具100包括:锅体10、盖体20、泄压装置30A和真空装置40A。锅体10具有顶部敞开的烹饪腔11,锅体10的底部设有加热装置。盖体20安装在锅体10上,盖体20上有泄压孔21、抽气口22和安装口23。泄压孔21的正上方具有环形支撑筋50,环形支撑筋50限定出安装口23。泄压装置30A和真空装置40A设置在盖体20内,真空装置40A为微型隔膜泵,泄压装置30A包括密封组件31A和驱动组件32A。
密封组件31A包括压紧件311A、封堵件314A和密封件313A。
密封件313A包括:活动部3131A和固定部3132A,活动部3131A的中部具有卡槽31311A,封堵件314A的下端侧周壁具有环形槽,环形槽沿封堵件314A的周向延伸,在封堵件314A的下端形成卡头3141A,卡槽31311A与卡头3141A卡接连接。固定部3132A上具有环形密封槽31321A,环形支撑筋50与环形密封槽31321A卡接连接。压紧件311A设置在固定部3132A的上部,将固定部3132A的外周缘压设在环形支撑筋50的上表面。环形支撑筋50的上表面设有限位凸起51,增加了环形支撑筋50与固定部3132A之间的摩擦力。
根据本申请的烹饪器具100,通过活动部3131A与封堵件314A的卡接连接,实现对密封件313A的初步定位;通过固定部3132A的环形密封槽31321A与环形支撑筋50的卡接实现进一步的固定;通过压紧件311A的压设作用,实现对密封件313A的进一步固定与限位,使密封件313A始终保持在实现密封和不密封的可靠状态下,防止在密封件313A发生结构变形时脱落,从而避免了密封失效和产品功能失效。
相关技术中的真空电饭煲的泄压结构由电磁铁和小球阀组成,通过小球阀将泄压孔堵住,从而使烹饪腔内得到密封;当电饭煲需要从负压状态回到常压状态时,再通过电磁铁把小球推开,从而进行泄压。然而,小球阀的成本较高,且对于只有真空***的电饭煲来说缺乏市场竞争力。
为解决现有技术中存在的技术问题之一。本申请提出一种用于烹饪器具的泄压装置,所述泄压装置结构简单,生产成本低。
下面参考图4-图6描述根据本申请的用于烹饪器具的泄压装置30B。
如图4-图6所示,根据本申请一个实施例的烹饪器具100具有烹饪腔11和泄压孔21,泄压孔21与烹饪腔11导通,泄压装置30B包括:密封组件31B和驱动组件32B。
密封组件31B可以沿纵向(如图6所示的上下方向)移动,用于打开和封堵泄压孔21,驱动组件32B具有横向推杆321B,横向推杆321B可以沿横向(图6中所示的左右方向)移动,横向推杆321B与密封组件31B连接,从而可以在横向推杆321B沿横向移动时,驱动密封组件31B沿纵向移动。
根据本申请的烹饪器具100,通过驱动组件32B的横向推杆321B,将横向推杆321B的横向运动的作用力转为密封组件31B的纵向运动的作用力,从而驱动密封组件31B对泄压孔21进行开闭的动作;同时结构简单,有效地降低了泄压装置30B的成本,从而降低烹饪器具100的成本。
根据本申请的一个实施例,横向推杆321B的至少一部分形成具有最高点和最低点的驱动段3211B,密封组件31B上具有通孔3121B,通孔3121B可以沿横向延伸,横向推杆321B穿过通孔3121B,驱动段3211B可以与通孔3121B配合,从而通过驱动段3211B的移动驱动密封组件31B移动。
具体地,如图6所示,当横向推杆321B左右移动时,驱动段3211B左右移动,驱动段3211B与通孔3121B配合的高度在最高点与最低点之间移动,从而驱动密封组件31B上下移动,以打开或关闭泄压孔21,操作方便。
在一些可选的示例中,驱动段3211B的至少一部分可以形成具有不同高度弧形杆段。
在另一些可选的示例中,驱动段3211B形成相对于横向倾斜延伸的倾斜杆段。即驱动段3211B形成与横向推杆321B方向倾斜的斜杆段,驱动段3211B具有最高点和最低点,驱动段3211B的最高点与横向推杆321B连接,驱动段3211B的最低点可以形成自由端,横向推杆321B移动时,驱动段3211B同步移动。
当然,横向推杆321B也可以与驱动段3211B的最低点连接,驱动段3211B的最高 点可以形成自由端。驱动段3211B的最高点和最低点还可以分别与两段断开的横向推杆321B连接,横向推杆321B移动时,驱动段3211B同步移动。
在一些示例中,驱动段3211B沿横向从内向外逐渐向下倾斜延伸,最高点和最低点分别形成在驱动段3211B的两端。
如图6所示,在一些具体示例中,驱动段3211B沿左右方向从左向右逐渐向下倾斜延伸,驱动段3211B的最高点和最低点分别形成在驱动段3211B的两端,从而当驱动段3211B的左端与密封组件31B配合时,密封组件31B打开泄压孔21;当驱动段3211B的右端与密封组件31B配合时,密封组件31B封堵泄压孔21。
其中,驱动段3211B的水平(图6中的左右方向)投影长度等于驱动杆323B的移动行程,驱动段3211B的纵向(图6中的上下方向)投影长度为密封组件31B的行程。
如图6所示,在一些示例中,通孔3121B内壁面的纵截面形成从中部向通孔3121B的中心弯曲的弧形,这里的纵截面是指沿通孔3121B的轴向剖开的截面,中部是指通孔3121B内壁面的中间部位,即通孔3121B内壁面的中部是向通孔3121B的中心弯曲,通孔3121B的位于上部的内壁面向下侧凸出,通孔3121B的位于下部的内壁面向上凸出。这样的结构可以起到导向作用,便于通孔3121B与驱动段3211B相配合,使得驱动段3211B的最高点和通孔3121B的上部接触,驱动段3211B的最低点和通孔3121B的下部位接触。
如图6所示,在一些示例中,泄压装置30B还包括阀体33B,阀体33B具有沿纵向延伸的通道331B。密封组件31B包括:纵向推杆312B和密封件313B,纵向推杆312B沿通道331B的长度方向移动,纵向推杆的顶端设有通孔3121B,密封件313B用于打开和封堵泄压孔21,密封件313B的外周缘密封连接在阀体33B的底部,密封件313B的中部与纵向推杆312B卡接连接,从而使密封件313B的中部可以随纵向推杆312B移动,以打开或封堵泄压孔21。
在进一步的示例中,密封组件31B还包括封堵件314B,封堵件314B设置在阀体33B内,且封堵件314B与纵向推杆312B之间设有弹性件315B,弹性件315B可以对封堵件314B的移动起到缓冲的作用,同时可以避免装配误差导致密封不良的问题,还可以使纵向推杆312B避免出现卡住的问题。
例如,弹性件315B为弹簧,封堵件314B的下端与密封件313B的中部卡接连接,封堵件314B的上端具有用于对弹簧的下端进行定位的定位槽,弹簧的上端与纵向推杆312B的下端连接。
在一些具体示例中,封堵件314B的外形尺寸略小于通道331B的横截面尺寸,从而使封堵件314B可以设置在阀体33B的内部。封堵件314B下端具有环状卡槽,使封堵件314B的纵截面形成下端为“工”字形的结构,密封件313B的中部具有向内侧延伸的环状凸起,环状凸起可以插接在封堵件314B下端的卡槽内,从而使密封件313B和封堵件314B卡接相连,以防止密封件313B脱落。
根据本申请的一个示例,驱动组件30为电磁铁组件。电磁铁组件包括电磁铁322B 和驱动杆323B,驱动杆323B在电磁铁322B驱动下移动,从而带动横向推杆321B沿所述横向移动。
驱动杆323B外部套设有弹簧324B,弹簧324B的两端分别与驱动杆323B的自由端和电磁铁322B止抵连接,弹簧324B可以对驱动杆323B的移动起到缓冲作用,且当驱动杆323B移动带动弹簧324B压缩后,弹簧324B可以代替电磁体322的吸力,使驱动杆323B依靠弹簧324B的弹力恢复至原位。
并且,通过在阀体33B内设置弹簧324B,可以在泄压装置30B发生失效时,通过烹饪腔11内的气压克服弹簧324B的弹力而打开泄压孔21,实现泄压,对烹饪器具100起到安全保护的作用,保证烹饪器具100的正常工作。
如图6所示,在一些示例中,驱动杆323B的自由端设有卡接部3231B,横向推杆321B的一端与卡接部3231B卡接相连。具体地,驱动杆323B的右端形成驱动杆323B的自由端。横向推杆321B设置在驱动杆323B的右端,横向推杆321B的左端形成卡钩,卡钩与卡接部3231B卡接相连,从而将横向推杆321B与驱动杆323B固定连接,使两者实现同步移动。
根据本申请实施例的烹饪器具包括:锅体10、盖体20和根据本申请实施例的用于烹饪器具的泄压装置30B。锅体10具有顶部敞开的烹饪腔11,盖体20安装在锅体10上,盖体20可以在打开位置和关闭位置之间活动,泄压孔21设置在盖体20上,泄压装置30B设置在盖体20内。通过采用上述泄压装置30B,通过驱动组件32B的横向推杆321B驱动密封组件31B移动,实现泄压孔21的开闭,结构简单,降低了烹饪器具的成本。
参照图4至图6,根据本申请一个具体实施例的烹饪器具100可以是电饭锅、电饭煲、电压力锅等。
烹饪器具100包括:锅体10、盖体20、泄压装置30B和真空装置40B。锅体10具有顶部敞开的烹饪腔11,锅体10的底部设有加热装置。盖体20安装在锅体10上,盖体20上有泄压孔21。泄压装置30B和真空装置40B设置在盖体20内,真空装置40B为微型隔膜泵,泄压装置30B包括密封组件31B、驱动组件32B和阀体33B。阀体33B具有上下延伸的通道331B。
驱动组件32B包括横向推杆321B、电磁铁322B、驱动杆323B和弹簧324B。弹簧324B套设在驱动杆323B的外部,弹簧324B的两端分别与驱动杆323B的右端和电磁铁322B止抵连接,驱动杆323B的右端还设有卡接部3231B,横向推杆321B的左端形成卡钩,从而使横向推杆321B与驱动杆323B卡接相连。横向推杆321B的一部分形成驱动段3211B,驱动段3211B具有最高点和最低点。
密封组件31B包括纵向推杆312B、密封件313B、封堵件314B和弹性件315B,纵向推杆312B的上端具有通孔3121B。纵向推杆312B的下端设在通道331B内,纵向推杆312B的下部与封堵件314B之间设有弹性件315B。密封件313B的外周缘夹设在阀体33B的下端与盖体20之间,密封件313B的中部卡接在封堵件314B的下部,从而当 纵向推杆312B向下移动时,可以使弹性件315B受压,推动封堵件314B和密封件313B一起向下移动,封堵泄压孔21。
当需要对烹饪腔11进行抽气时,泄压装置30B工作以使烹饪腔11内实现密封。具体地,控制程序控制电磁铁322B断电,驱动杆323B在弹簧324B的弹力作用下向右移动,带动横向推杆321B向右移动,驱动段3211B同步右移,驱动段3211B的最低点和通孔3121B的下部接触,从而将横向运动的作用力通过纵向推杆312B转为纵向运动的作用力,驱动段3211B向右移动时,驱动纵向推杆312B向下移动,从而带动密封件313B向下运动,以封堵泄压孔21,从而实现烹饪腔11内的密封。此时真空装置40B可以对烹饪腔11抽气,以使烹饪腔11内形成负压状态。
当需要进行泄压时,控制程序控制电磁铁322B通电吸合,驱动杆323B向左移动,以带动横向推杆321B向左移动,驱动段3211B同步左移,驱动段3211B的最高点和通孔3121B的上部接触,从而将横向运动的作用力通过纵向推杆312B转为纵向作用,驱动段3211B向左移动时,纵向推杆312B向上移动,带动密封件313B向上运动,以打开泄压孔21,进而使烹饪腔11与外界导通,实现泄压。
当然,上述工作过程仅是一个优选的方案,电磁铁322B通电吸合时,驱动杆323B也可以向右移动,带动密封件313B向下运动,封堵泄压孔21。
相关技术中的真空电饭煲,其盖板上具有泄压孔和抽气孔,当电饭煲煮饭抽气和负压密封保持阶段,泄压孔被密封,通过真空泵将烹饪腔内的气压降为负压状态。当电饭煲在煮饭的沸腾阶段,打开泄压孔,此时,如果泄压孔的孔径太小,会导致泄压噪音过大和米汤从泄压孔喷溅而出的现象发生,影响用户体验;如果泄压孔的孔径太大,会导致真空吸附力过大,势必会提高对驱动组件的功率要求,从而导致零部件成本过高。
为解决现有技术中存在的技术问题之一。本申请提出一种烹饪器具,所述烹饪器具噪音小,且成本低。
下面参考图7-图11描述根据本申请的烹饪器具100。
如图7-图12所示,根据本申请一个实施例的烹饪器具100包括:锅体10、盖体20、微型隔膜泵40C和泄压装置30C。
锅体10具有顶部敞开的烹饪腔11,盖体20安装在锅体10上,盖体20可以在打开位置和关闭位置之间活动,盖体20上具有抽气口22和泄压孔21,微型隔膜泵40C与抽气口22连通,从而可以将烹饪腔11内形成负压,泄压装置30C设置在盖体20内,用于打开和封堵泄压孔21,当泄压装置30C打开泄压孔21时,可以使空气通过泄压孔21进入烹饪腔11内,或使烹饪腔11内的蒸汽通过泄压孔21排出烹饪腔11外。
其中,泄压孔21在烹饪腔11底壁上的正投影面积为20mm 2-51mm 2。例如,泄压孔21在烹饪腔11底壁上的正投影面积可以为20mm 2、25mm 2或者50mm 2。泄压孔21的形状可以为圆形、方形或者其他不规则的形状。
根据本申请的烹饪器具100,通过限定泄压孔21在烹饪腔11底壁上的正投影面积满足上述条件,从而可以最大限度地降低泄压噪音,避免米汤溢出,同时又能最大限度 地降低真空的吸附力,从而降低烹饪器具100的成本。
根据本申请的一个实施例,泄压孔21形成圆孔,且泄压孔21的直径为5mm-8mm。
具体地,当泄压孔21的直径设为5mm时,将烹饪腔11内的水加热至沸腾,烹饪腔11内的气压为0.4kPa,此时的泄压噪音较小,溢出现象也得到很好的改善;当泄压孔21的直径增加至7mm时,测得烹饪腔11内的食材在沸腾状态下的相对压力几乎接近常压;当泄压孔21的孔径增加至8mm时,可以最大限度地降低真空的吸附力,从而降低烹饪器具100的成本。
根据本申请的一个实施例,泄压装置30C包括:密封组件31C和驱动组件32C。密封组件31C可以沿纵向(图7中所示的上下方向)移动,从而可以打开和封堵泄压孔21,驱动组件32C与密封组件31C连接,驱动组件32C用于驱动密封组件31C移动,从而打开或封堵泄压孔21。
如图10和图11所示,在一些示例中,泄压装置30C还包括阀体33C,阀体33C具有沿纵向延伸的通道331C,密封组件31C包括:阀芯311C和密封件313C。阀芯311C设置在阀体31内,阀芯311C可以沿通道331C的长度方向移动,密封件313C用于打开和封堵泄压孔21,密封件313C的外周缘密封连接在阀体33C的底部,密封件313C的中部与阀芯311C连接,从而使密封件313C的中部可以随阀芯311C移动,从而打开和封堵泄压孔21。
在一些具体的示例中,密封件313C的外周缘具有从外向内凹陷的环形凹槽,盖体20上具有卡钩28,卡钩28与环形凹槽的内侧过盈配合连接,从而保证密封件313C与盖体20之间的密封性。阀体33C的底部压设在密封件313C上,并对密封件313C进行挤压,从而将密封件313C的外周缘夹设在盖体20与阀体33C之间,防止密封件313C的脱落。
如图11所示,在一些示例中,阀芯311C形成沿通道331C的长度方向延伸的柱状,阀芯311C的一端与驱动组件32C连接,阀芯311C的另一端设有卡接部312C,卡接部312C与密封件313C卡接相连。
具体地,卡接部312C形成在阀芯311C的下端,且卡接部312C形成纵截面为“工”字形的结构,密封件313C的中部具有向内侧延伸的环状凸起,环状凸起可以卡接在卡接部312C上,从而使密封件313C和阀芯311C卡接相连,使密封件313C的中部随阀芯311C上下移动,同时可以防止密封件313C脱落。
如图10所示,在一些示例中,密封组件31C还包括封堵件314C,封堵件314C可移动地设置在阀体33C内,且封堵件314C与阀芯311C之间设有控压弹簧315C,控压弹簧315C可以对封堵件314C的移动起到缓冲的作用,同时可以避免装配误差导致密封不良的问题,避免阀芯311C出现卡住的情况。
并且,通过在阀体33C内设置控压弹簧315C,可以在泄压装置30C发生失效时,通过烹饪腔11内的气压克服控压弹簧315C的弹力而打开泄压孔21,实现泄压,对烹饪器具100起到安全保护的作用,保证烹饪器具100的正常工作。
此外,密封件313C的中部与封堵件314C连接。具体地,封堵件314C的外形尺寸略小于通道331C的横截面尺寸,从而使封堵件314C可以在阀体33C的内部移动。封堵件314C下端具有环状卡槽,使封堵件314C的截面形成下端为“工”字形的结构,密封件313C的中部具有向内侧延伸的环状凸起,环状凸起可以插接在封堵件314C下端的环状卡槽内,从而使密封件313C和封堵件314C卡接相连,以防止密封件313C脱落。
根据本申请的一个具体的示例,驱动组件32C包括电磁铁322C和驱动杆321C,驱动杆321C沿上下方向且由电磁铁322C驱动,驱动杆321与密封组件31C连接,从而带动密封组件31C上下移动。驱动杆321C外套有复位弹簧324C,复位弹簧324C的两端分别与驱动杆321C的端部和电磁铁322C止抵连接。复位弹簧324C可以对驱动杆321C的移动起到缓冲作用,当电磁体321断电后,驱动杆321C可以依靠复位弹簧324C的弹力移动,从而克服烹饪腔11内的真空吸力。
根据本申请的一个实施例,盖体20包括内盖201和盖板202,盖板202设置在内盖201的朝向烹饪腔11的一侧,其中,抽气口22和泄压孔21设置在盖板202上。
如图9所示,在一些示例中,盖板202上还具有温控器孔27,从而使温度检测装置通过温控器孔27,对烹饪腔11内部的温度进行实时检测,依据烹饪腔11内温度的变化适时调整工作状态,提高烹饪器具100的使用性能。其中,温控器孔27与抽气口22对称布置布置在泄压孔21的两侧,从而可以降低制造工艺的难度,从而便于生产。
如图7和图10所示,在一些示例中,内盖201上还设有密封圈26,密封圈26的上端固定在内盖201上,密封圈26的下端与盖板202止抵连接,内盖201、盖板202和密封圈26之间限定出泄压腔61,泄压腔61与泄压孔21相连通。
在进一步的示例中,内盖201上还设有蒸汽阀62,蒸汽阀62与泄压腔61相导通,蒸汽经过泄压孔21排入到泄压腔61后,可以通过蒸汽阀62排出到外界。
参照图7-图10,根据本申请一个具体实施例的烹饪器具100可以是电饭锅、电饭煲、电压力锅等。
烹饪器具100包括:锅体10、盖体20、微型隔膜泵40C和泄压装置30C。锅体10具有顶部敞开的烹饪腔11,盖体20安装在锅体10上,盖体20包括内盖201和盖板202,盖板202上具有抽气口22、泄压孔21和温控器孔27。
泄压装置30C包括:密封组件31C、驱动组件32C和阀体33C,阀体33C具有沿纵向延伸的通道331C,密封组件31C包括:阀芯311C、密封件313C、封堵件314C和控压弹簧315C。封堵件314C的上端与阀芯311C连接,控压弹簧315C设置在封堵件314C与阀芯311C之间。封堵件314C下端具有环状卡槽,密封件313C的中部具有向内侧延伸的环状凸起,密封件313C插接在封堵件314C下端的环状卡槽内。驱动组件32C包括电磁铁322C和驱动杆321C,电磁体321通过螺钉固定在内盖201上。驱动杆321C外套有复位弹簧324C,复位弹簧324C的两端分别与驱动杆321C的端部和电磁铁322C止抵连接。微型隔膜泵40C与抽气口22连通,从而可以将烹饪腔11内形成负压。
其中,泄压孔21形成圆孔,泄压孔21的直径为5mm-8mm,或者泄压孔21在烹饪 腔11底壁上的正投影面积为20mm 2-50mm 2
烹饪器具100工作时,对烹饪腔11里的水进行加热至沸腾状态,产生的蒸汽量不断增加,压力也越来越大,在压力差的作用下,高压气体从泄压孔21排出,当高压气体通过截面积较小的泄压孔21时,气体流速较大,产生的噪音大,同时水汽混合物也会通过泄压孔21喷溅而出。
通过大量的实验数据得出:当泄压孔21的直径为5mm时,对烹饪腔11的水加热至沸腾时,内锅里的气压为0.4kPa,此时在气体噪音和溢出方面都得到很好的改善。当泄压孔21的直径为7mm时,烹饪腔11在沸腾状态下的相对压力接近常压。
当烹饪器具100从负压状态瞬间回到常压状态,堵住泄压孔21的密封件313C需要通过驱动组件32C来打开,根据F=PS(P为气体压强,S为泄压孔的投影面积)可知,气压一定时,泄压孔21的投影面积越小,真空吸力越小,驱动组件32C克服真空吸力越小,功率越小。从上述得到的泄压孔21的最小直径为5mm,当最大真空度设定为-40kPa时,密封件313C堵住泄压孔21时,受到的最大真空吸力为F1=PS=80gf,此时驱动组件32C需要打开泄压孔21所克服的阻力F阻=F1+F2,其中,F2为电磁铁322C、驱动杆321C、密封件313C等阻力,F2约为20gf,因此F阻=100gf。而驱动组件32C克服真空吸力,主要依靠复位弹簧324C的回弹力:F弹=1.25F阻=125gf,根据满足在烹饪器具100上使用的电磁铁的型号,经过测试得出:当泄压孔21的直径为8mm时,电磁铁322C的功率、体积、寿命和可靠性达到最优值。
真空电饭煲通常在盖体上安装真空泵,通过真空泵抽气使烹饪器具内实现负压状态,从而提高煮饭效果。然而,若将真空泵安装于盖体的前端,使其位于控制面板附近,由于真空泵的重力会大大增加上盖开盖时的扭矩,导致真空泵发生松动、脱落等问题。
为解决现有技术中存在的技术问题之一。本申请提出一种烹饪器具,所述烹饪器具在开盖时真空泵的稳定性好。
下面参考图12-图14根据本申请的烹饪器具100。
如图12-图14所示,根据本申请一个实施例的烹饪器具100包括:锅体10、盖体20和真空泵40D。
锅体10具有顶部敞开的烹饪腔11,盖体20通过枢转轴203可枢转地连接在锅体10上,盖体20可以在打开位置和关闭位置之间活动,盖体20上具有抽气口22、出气口24和蒸汽通道25,抽气口22、出气口24和蒸汽通道25均与烹饪腔11相连通。真空泵40D设置在盖体20内,真空泵40D分别与抽气口22和出气口24连通,从而可以将烹饪腔11内形成负压,其中,真空泵40D位于枢转轴203与蒸汽通道25之间。蒸汽通道25处设有蒸汽阀(未示出),通过蒸汽阀可以调节烹饪器具100内部压力,实现蒸汽排放。
根据本申请的烹饪器具,通过将真空泵40D设置在枢转轴203与蒸汽通道25之间,有助于减小真空泵40D的旋转扭矩,从而减小盖体20开盖时的旋转扭矩;同时提高了真空泵40D在盖体20开盖时的稳固性,可以有效地防止开盖跳煲。
根据本申请的一个实施例,蒸汽通道25设置在邻近枢转轴203的位置,真空泵40D设置在邻近蒸汽通道25处,从而在开盖时,可以减小真空泵40D的旋转扭矩,同时防止开盖跳煲。
当然,真空泵40D也可以设置在邻近枢转轴203的位置,从而可以进一步降低真空泵40D的旋转扭矩,使得开盖更加方便。
如图14所示,根据本申请的一个实施例,在垂直于枢转轴203的轴线的法向上,抽气口22设置在盖体20的中部,这样保证抽气口22在烹饪腔11横截面上的正投影位于中部,从而使真空泵40D的抽气均匀。
根据本申请的一个实施例,出气口24设置在邻近枢转轴203和盖体30的外周缘处。
在一些示例中,锅体10的顶部靠近枢转轴203的位置设有集水槽(未示出),且出气口24在锅体10的顶部的正投影位于集水槽中,通过将出气口24设置在邻近枢转轴203和盖体30的外周缘处,方便将真空泵40D抽出的蒸汽排放到烹饪腔11外,并有利于集水槽收集蒸汽冷凝后形成的冷凝水,同时可以防止开盖后冷凝水流入烹饪腔11内。
根据本申请的一个实施例,真空泵40D通过安装支架71固定在盖体20内,通过将真空泵40D安装在安装支架71上,避免真空泵40D与盖体20之间接触,可以降低真空泵40D工作中产生的噪音,同时可以提高稳定性。
如图12和图13所示,在一些示例中,安装支架71包括:至少两个支撑柱711和支撑板712。至少两个支撑柱711相对布置,支撑板712设置在至少两个支撑柱711的顶部,且支撑板712与每个支撑柱711固定连接,真空泵40D安装在支撑板712上。
在一些可选的示例中,支撑板712可以采用弹性材料制成,例如,支撑板712可以为橡胶板,通过采用弹性材料的支撑板712,将真空泵40D安装在弹性材料制成的支撑板712,不仅可以降低真空泵40D的工作噪音,还可以避免在开、关盖时对真空泵40D进行缓冲,进一步降低噪音。
在一些可选的示例中,支撑柱711也可以采用弹性材料制成,从而可以进一步地降低真空泵40D工作时的噪音。
在一些具体的示例中,至少两个支撑柱711沿垂直于枢转轴203的轴线的法向间隔布置,从而使得当盖体20打开时,至少两个支撑柱711沿与两个支撑柱711连线垂直的方向上转动,减少了真空泵40D的移动距离,从而提高了真空泵40D在开盖过程中的稳定性。
在一些具体的示例中,支撑板712的朝向真空泵40D的一侧表面,至少一部分形成与真空泵40D的外形相适配的弧面,从而可以便于将真空泵40D安装在支撑板712上,进一步提高真空泵40D在开盖过程中的稳定性。
如图16所示,根据本申请的一个实施例,真空泵40D具有真空泵进口401和真空泵出口402,真空泵进口401通过连接管403与抽气口22相连通,真空泵出口402通过连接管22与出气口24相连通。其中,连接管22可以为橡胶管,从而有效地降低气流 在流动时产生的噪音。
根据本申请的一个实施例,烹饪器具100包括根据上述实施例所述的用于烹饪器具的泄压装置。通过采用上述用于烹饪器具的泄压装置,通过驱动组件驱动密封组件移动,实现泄压孔的开闭,结构简单,降低了烹饪器具的成本。
参照图12-图14,根据本申请一个具体实施例的烹饪器具100可以是电饭煲、电压力锅或电炖锅等。
烹饪器具100包括:锅体10、盖体20、真空泵40D、安装支架71和控制面板72。锅体10具有顶部敞开的烹饪腔11,锅体10的顶部靠近枢转轴203的位置设有集水槽,
盖体20通过枢转轴203可枢转地连接在锅体10上,盖体20上具有抽气口22、出气口24和蒸汽通道25,出气口24在锅体10的顶部的正投影位于集水槽中,蒸汽通道25处设有蒸汽阀,安装支架71安装在盖体20内,控制面板72设置在盖体20上部且远离枢转轴203的位置。
安装支架71包括两个支撑柱711和一个支撑板712,支撑板712固定在支撑柱711上,支撑板712为橡胶板,支撑板712的上侧表面形成弧形面,真空泵40D安装在支撑板712上。真空泵40D具有真空泵进口401和真空泵出口402,真空泵进口401通过连接管403与抽气口22连通,真空泵出口402通过连接管22与出气口24连通。真空泵40D工作时,通过抽气口22将烹饪腔11内的气体抽出,并通过出气口24排出,从而使烹饪腔11内形成负压,促使烹饪腔11内大米内部的微小气泡快速出来,同时让水更容易进入大米内部,实现大米的快速吸水。
其中,蒸汽通道25设置在邻近枢转轴203的位置,真空泵40D设置在枢转轴203与蒸汽通道25之间,且邻近枢转轴203处。通过设置真空泵40D的具***置,减小了真空泵40D的旋转扭矩,从而减小盖体20开盖的旋转扭矩;同时提高了真空泵40D在盖体20开盖时的稳固性,可以有效地防止开盖跳煲。
相关技术中的真空电饭煲,真空泵的吸气口需要设置防堵罩,以防止米粒等堵塞吸气口。防堵罩通常采用多孔塑料件,然而这种塑料件的防堵罩在于与活动盖板安装时,存在难安装、安装与拆卸易损坏、难清洗等问题,且长时间使用后容易出现防堵罩的孔变小,从而导致抽真空不顺畅,噪音大。
为解决现有技术中存在的技术问题之一。本申请提出一种烹饪器具,所述烹饪器具的防堵效果好、抽气顺畅。
下面参考图15-图19描述根据本申请的烹饪器具100。
如图15-图19所示,根据本申请一个实施例的烹饪器具100包括:锅体10、盖体20、抽气装置40E和防堵件81。
锅体10具有顶部敞开的烹饪腔11,盖体20安装在锅体10上,盖体20可以在打开位置和关闭位置之间活动,盖体20上具有抽气口22,抽气装置40E与抽气口22相连通,抽气装置40E抽气时,可以将烹饪腔11内形成负压。
进一步地,防堵件81设置在抽气口22处,在抽气装置40E工作时,防堵件81与 盖体20之间限定出至少一个气流通道,所述气流通道与烹饪腔11和抽气口22相连通,每个气流通道的横截面面积S1小于等于4mm 2
根据本申请的烹饪器具100,通过设置防堵件81,使抽气装置40E在工作时可以与防堵件81限定出气流通道,并限定气流通道的横截面积,从而能够有效阻止米粒等大颗粒食材堵塞抽气口22,实现防堵功能,保证抽气顺畅,从而提高烹饪器具100的用户体验。
根据本申请的一个实施例,防堵件81为柔性件,且防堵件81卡接在抽气口22处。通过采用柔性的防堵件81,利用其柔软的特性,以便于其变形从而可以方便地安装或拆除。具体地,防堵件81的一端可以具有略大于抽气口22孔径大小的环形卡钩,通过环形卡钩与抽气口22卡接连接,使防堵件81固定在盖体20上。
如图16和图17所示,在一些示例中,盖体20包括内盖201和盖板202,盖板202连接在内盖201的朝向烹饪腔11一侧,即盖板202位于内盖201的下侧。
进一步地,防堵件81包括:固定部811和防堵部812。固定部811位于盖板202的上侧,固定部811的至少一部分横截面面积大于抽气口22的横截面面积,从而使固定部811可以卡接在盖板202上,防堵部812与固定部811连接,防堵部812位于盖板202的下侧,防堵部812朝向盖板202的一侧具有至少一个凹槽813,在抽气装置40E工作时,凹槽813与盖板202之间可以限定出气流通道,且凹槽813的横截面面积为S1,S1小于等于4mm 2,从而能有效阻止米粒等大颗粒食材堵塞凹槽813。
如图17和图18所示,在一些示例中,防堵部812上包括多个凹槽813,多个凹槽813沿固定部811的周向间隔分布,形成多个间隔分布的气流通道,从而可以使气体从多个方向进入抽气口22处,提高抽气效率。
在一些具体的示例中,多个凹槽813的横截面面积总和S2大于等于7mm 2,从而可以有效保证抽气装置40E的工作效率,避免抽气不顺畅、噪音大等问题。
如图19所示,在一些示例中,凹槽813可以形成为方形,当然,凹槽813的截面也可以形成为圆形或V形等,从而便于凹槽813的制模与加工。
如图17和图19所示,在一些示例中,固定部811与防堵部812的连接处具有环形凹槽814,环形凹槽814用于避让抽气口22,凹槽813与环形凹槽814相连通,从而使烹饪腔11内的气体通过凹槽813与环形凹槽814连通,当抽气装置40E工作时,气体可以顺畅的通过抽气口22与抽气装置40E连通。
如图17-图19所示,固定部811的至少一部分形成圆台状,从而使固定部811可以安装在盖板202的上侧,固定部811的一部分形成倾斜的导向面,便于与盖板202的卡接固定,防止防堵件81脱落。同时在抽气装置40E不工作时,固定部811圆台的下侧可以与盖板202的上侧连接,可以将烹饪腔11内形成密封的腔体。
可选地,固定部811的至少一部分也可以形成圆锥状,从而便于与盖板202卡接连接,防止防堵件81的脱落;同时可以密封烹饪腔11。
如图15和图16所示,在一些示例中,内盖201上设有连接接头82,连接接头82 具有与抽气口22导通的连接通道821,抽气装置40E与连接通道821相连通。内盖201与盖板202之间还设有密封圈60,密封圈60的上端挂设在内盖201上,且位于连接接头82与内盖201之间,同时连接接头82可以将密封圈60进一步压设在内盖201上,提高了密封圈60与内盖201、连接接头82之间的密封性。密封圈60的下端与盖板202止抵连接,从而在盖板202与内盖201之间形成一个密封腔体,抽气口22和连接通道821设在在腔体内,从而使抽气装置40E通过抽气口22和连接通道821对烹饪腔11内进行抽气,抽气过程中,密封性好。
根据本申请的一个可选实施例,抽气装置40E为真空泵,结构简单,安装方便。
根据本申请的一个实施例,烹饪器具100包括根据上述实施例所述的用于烹饪器具的泄压装置。通过采用上述用于烹饪器具的泄压装置,通过驱动组件驱动密封组件移动,实现泄压孔的开闭,结构简单,降低了烹饪器具的成本。
参照图15-图19,根据本申请一个具体实施例的烹饪器具100可以是电饭煲、电压力锅或电炖锅等。
烹饪器具100包括:锅体10、盖体20、真空泵和防堵件81。锅体10具有顶部敞开的烹饪腔11,盖体20包括内盖201和盖板202,盖板202位于内盖201的下侧。盖板202上具有抽气口22,内盖201上设有连接接头82,连接接头82具有连接通道821,连接通道821与抽气口22导通。内盖201与盖板202之间设有密封圈60,密封圈60的上端固定在内盖201上,下端与盖板202止抵连接。真空泵通过连接接头82固定在内盖201上,真空泵的进气口与连接通道821导通。
防堵件81卡接在抽气口22处,防堵件81为柔性件,防堵件81包括:固定部811和防堵部812。固定部811的一部分形成圆台状,防堵部812的上侧具有四个凹槽813和一个环形凹槽814,凹槽813沿防堵部812的周向延伸,环形凹槽814设置在凹槽813的中间,位于固定部811与防堵部812的连接处,用于避让抽气口22,凹槽813与环形凹槽814导通,凹槽813的横截面面积为S1,S1小于等于4mm 2,四个凹槽813的横截面面积总和S2大于等于7mm 2
当真空泵工作时,防堵件81在盖体20与烹饪腔11之间的压力差作用下向上移动,烹饪腔11内的气体通过凹槽813与盖体20之间形成的气流通道进入抽气口22,从而通过连接通道821与真空泵的进气口导通,真空泵对烹饪腔11内进行抽气,以使烹饪腔11内形成负压。当烹饪腔11内达到了需要的负压值时,真空泵停止工作,防堵件81在盖体20与烹饪腔11之间的压力差作用下向下移动,固定部811的一部分将抽气口22封堵,从而使烹饪腔11内形成密封的腔体,烹饪腔11可以维持在负压状态。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示意性实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本申请的实施例,本领域的普通技术人员可以理解:在不脱离本申请的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型,本申请的范围由权利要求及其等同物限定。

Claims (35)

  1. 一种用于烹饪器具的泄压装置,其特征在于,所述烹饪器具具有泄压孔,所述泄压装置包括:
    密封组件,所述密封组件沿纵向可移动或所述密封组件包括沿纵向可移动的封堵件,用于打开和封堵所述泄压孔;
    驱动组件,所述驱动组件与所述密封组件连接,用于驱动所述密封组件打开或封堵所述泄压孔。
  2. 根据权利要求1所述的用于烹饪器具的泄压装置,其特征在于,所述烹饪器具的盖体具有所述泄压孔和位于所述泄压孔正上方的安装口,
    所述密封组件包括沿纵向可移动的封堵件和设在所述安装口处的密封件,所述密封件的中部与所述封堵件连接以随所述封堵件移动,所述密封件的外周缘密封连接在所述安装口处,所述驱动组件与所述密封组件的封堵件连接,用于驱动所述密封组件的封堵件移动。
  3. 根据权利要求2所述的用于烹饪器具的泄压装置,其特征在于,所述密封件包括:
    活动部,所述活动部与所述封堵件连接以随所述封堵件移动;
    固定部,所述固定部与所述活动部连接且形成沿所述活动部的周向延伸的环形,所述固定部密封连接在所述安装口处。
  4. 根据权利要求3所述的用于烹饪器具的泄压装置,其特征在于,所述封堵件形成沿所述纵向延伸的柱状,所述封堵件的下端与所述活动部卡接相连。
  5. 根据权利要求4所述的用于烹饪器具的泄压装置,其特征在于,所述封堵件的下端侧周壁具有沿其周向延伸的环形槽以在所述封堵件的下端形成卡头,所述活动部的中部具有与所述卡头卡接的卡槽。
  6. 根据权利要求3或4所述的用于烹饪器具的泄压装置,其特征在于,所述安装口由设在所述泄压孔正上方的环形支撑筋限定出,所述固定部具有开口朝向所述环形支撑筋的环形密封槽,所述环形支撑筋与所述环形密封槽卡接相连,
    所述密封组件还包括:压紧件,所述压紧件适于可拆卸地设在所述安装口处以将所述固定部的外周缘压设在所述环形支撑筋的上表面,
    所述环形支撑筋的上表面设有限位凸起以增大所述环形支撑筋与所述密封件之间的摩擦力。
  7. 根据权利要求3所述的用于烹饪器具的泄压装置,其特征在于,所述活动部由柔性材料制成,所述固定部由柔性材料或硬性材料制成,所述密封件为一体成型件。
  8. 根据权利要求2-7中任一项所述的用于烹饪器具的泄压装置,其特征在于,所述驱动组件还包括:电磁铁和由所述电磁铁驱动的电磁铁推杆,所述电磁铁推杆与所述封堵件连接,用于推动所述封堵件移动,所述电磁铁推杆的端部具有止抵部,所述驱动组件还包括复位弹性件,所述复位弹性件的两端分别与所述止抵部和所述电磁铁止抵连接,所述电磁铁推杆与所述封堵件之间连有控压弹性件。
  9. 根据权利要求1所述的用于烹饪器具的泄压装置,其特征在于,所述烹饪器具具有 烹饪腔和与所述烹饪腔导通的所述泄压孔,
    所述密封组件沿纵向可移动,用于打开和封堵所述泄压孔,所述驱动组件具有沿横向可移动的横向推杆,所述横向推杆与所述密封组件连接以在所述横向推杆沿所述横向移动时驱动所述密封组件沿所述纵向移动。
  10. 根据权利要求9所述的用于烹饪器具的泄压装置,其特征在于,所述横向推杆的至少一部分形成具有最高点和最低点的驱动段,所述密封组件具有沿所述横向延伸的通孔,所述横向推杆穿过所述通孔且在所述驱动段与所述通孔配合时驱动所述密封组件移动。
  11. 根据权利要求10所述的用于烹饪器具的泄压装置,其特征在于,所述驱动段形成相对于所述横向倾斜延伸的倾斜杆段,
    其中,所述驱动段沿所述横向从内向外逐渐向下倾斜延伸,所述最高点和所述最低点分别形成在所述驱动段的两端。
  12. 根据权利要求10所述的用于烹饪器具的泄压装置,其特征在于,所述通孔内壁面的纵截面形成中部向所述通孔的中心弯曲的弧形。
  13. 根据权利要求10所述的用于烹饪器具的泄压装置,其特征在于,所述泄压装置还包括:阀体,所述阀体具有沿所述纵向延伸的通道,
    所述密封组件包括:
    纵向推杆,所述纵向推杆沿所述通道的长度方向移动,所述纵向推杆的顶端设有所述通孔;
    用于打开和封堵所述泄压孔的密封件,所述密封件的外周缘连接在所述阀体的底部,所述密封件的中部与所述纵向推杆连接以随所述纵向推杆移动。
  14. 根据权利要求13所述的用于烹饪器具的泄压装置,其特征在于,所述密封组件还包括:封堵件,所述封堵件设在所述阀体内且所述封堵件与所述纵向推杆之间设有弹性件,所述密封件的中部与所述封堵件连接,
    其中,所述封堵件的外形尺寸略小于所述通道的横截面尺寸,且所述封堵件与所述密封件的中部卡接相连。
  15. 根据权利要求10-14中任一项所述的用于烹饪器具的泄压装置,其特征在于,所述驱动组件为电磁铁组件且包括电磁铁和由所述电磁铁驱动的驱动杆,所述驱动杆外套有弹簧,且所述弹簧的两端分别与所述驱动杆的自由端和所述电磁铁止抵连接,
    其中,所述驱动杆的自由端设有卡接部,所述横向推杆的一端与所述卡接部卡接相连。
  16. 一种烹饪器具,其特征在于,包括根据权利要求1-15中任一项所述的用于烹饪器具的泄压装置。
  17. 根据权利要求16所述的烹饪器具,其特征在于,还包括:
    锅体,所述锅体具有顶部敞开的烹饪腔;
    盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述泄压孔设于所述盖体,所述泄压装置设于所述盖体内。
  18. 根据权利要求17所述的烹饪器具,其特征在于,所述盖体具有抽气口,所述烹饪 器具还包括:真空装置,所述真空装置与所述抽气口连通以将所述烹饪器具的烹饪腔内形成负压。
  19. 一种烹饪器具,其特征在于,包括:
    锅体,所述锅体具有顶部敞开的烹饪腔;
    盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述盖体具有抽气口和泄压孔;
    微型隔膜泵,所述微型隔膜泵与所述抽气口连通以将所述烹饪腔内形成负压;
    用于打开和封堵所述泄压孔的泄压装置,所述泄压装置设于所述盖体内以在打开所述泄压孔时、使空气通过所述泄压孔进入所述烹饪腔内或使蒸汽通过所述泄压孔排出所述烹饪腔外,其中所述泄压孔在所述烹饪腔底壁上的正投影面积为20mm 2-51mm 2
  20. 根据权利要求19所述的烹饪器具,其特征在于,所述泄压孔形成圆孔,且所述泄压孔的直径为5mm-8mm。
  21. 根据权利要求19所述的烹饪器具,其特征在于,所述泄压装置包括:
    密封组件,所述密封组件沿纵向可移动,用于打开和封堵所述泄压孔;
    驱动组件,所述驱动组件与所述密封组件连接,用于驱动所述密封组件移动以封堵所述泄压孔。
  22. 根据权利要求21所述的烹饪器具,其特征在于,所述泄压装置还包括:阀体,所述阀体具有沿所述纵向延伸的通道,
    所述密封组件包括:
    阀芯,所述阀芯设在所述阀体内且沿所述通道的长度方向可移动;
    用于打开和封堵所述泄压孔的密封件,所述密封件的外周缘连接在所述阀体的底部,所述密封件的中部与所述阀芯连接以随所述阀芯移动,
    其中,所述阀芯形成沿所述通道的长度方向延伸的柱状,且所述阀芯的一端与所述驱动组件连接,所述阀芯的另一端设有与所述密封件卡接相连的卡接部;和/或,所述密封组件还包括:封堵件,所述封堵件可移动地设在所述阀体内且所述封堵件与所述阀芯之间设有控压弹簧,所述密封件的中部与所述封堵件连接。
  23. 根据权利要求21或22所述的烹饪器具,其特征在于,所述驱动组件包括电磁铁和由所述电磁铁驱动的驱动杆,所述驱动杆与所述密封组件连接,
    所述驱动杆外套有复位弹簧,且所述复位弹簧的两端分别与所述驱动杆的端部和所述电磁铁止抵连接。
  24. 根据权利要求23所述的烹饪器具,其特征在于,所述盖体包括内盖和设在所述内盖的朝向所述烹饪腔一侧的盖板,所述抽气口和所述泄压孔设在所述盖板上,
    其中,所述内盖朝向所述盖板的一侧设有与所述盖板止抵连接的密封圈,所述内盖、所述盖板和所述密封圈之间限定出与所述泄压孔连通的泄压腔,
    所述内盖还设有蒸汽阀,所述蒸汽阀与所述泄压腔导通。
  25. 一种烹饪器具,其特征在于,包括:
    锅体,所述锅体具有顶部敞开的烹饪腔;
    盖体,所述盖体通过枢转轴在打开位置和关闭位置之间可枢转地连接至所述锅体,所述盖体具有与所述烹饪腔连通的抽气口、出气口和蒸汽通道;
    真空泵,所述真空泵设在所述盖体内且分别与所述抽气口和所述出气口连通以将所述烹饪腔内形成负压,所述真空泵位于所述枢转轴与所述蒸汽通道之间。
  26. 根据权利要求25所述的烹饪器具,其特征在于,所述蒸汽通道邻近所述枢转轴设置,所述真空泵邻近所述枢转轴或所述蒸汽通道设置。
  27. 根据权利要求25所述的烹饪器具,其特征在于,在垂直于所述枢转轴的轴线的法向上、所述抽气口设在所述盖体的中部。
  28. 根据权利要求25所述的烹饪器具,其特征在于,所述出气口邻近所述枢转轴和所述盖体的外周缘设置。
  29. 根据权利要求25所述的烹饪器具,其特征在于,所述真空泵通过安装支架固定于所述盖体内,
    其中,所述安装支架包括:至少两个相对布置的支撑柱和支撑板,所述支撑板设在至少两个所述支撑柱的顶部且与每个所述支撑柱连接,所述真空泵安装于所述支撑板上,
    至少两个所述支撑柱沿垂直于所述枢转轴的轴线的法向间隔布置;和/或,所述支撑板的朝向所述真空泵的一侧表面的至少一部分形成与所述真空泵的外形相适配的弧面。
  30. 根据权利要求25所述的烹饪器具,其特征在于,所述真空泵具有真空泵进口和真空泵出口,所述真空泵进口通过连接管与所述抽气口连通,所述真空泵出口通过连接管与所述出气口连通。
  31. 根据权利要求25所述的烹饪器具,其特征在于,包括根据权利要求1-15中任一项所述的用于烹饪器具的泄压装置。
  32. 一种烹饪器具,其特征在于,包括:
    锅体,所述锅体具有顶部敞开的烹饪腔;
    盖体,所述盖体在打开位置和关闭位置之间可活动地安装至所述锅体,所述盖体具有抽气口;
    抽气装置,所述抽气装置与所述抽气口连通以将所述烹饪腔内形成负压;
    防堵件,所述防堵件设在所述抽气口处且所述防堵件在所述抽气装置工作时、与所述盖体之间限定出至少一个与所述烹饪腔和所述抽气口连通的气流通道,每个所述气流通道的横截面面积S1小于等于4mm 2
  33. 根据权利要求32所述的烹饪器具,其特征在于,所述防堵件为柔性件,且所述防堵件卡接在所述抽气口处;和/或,所述抽气装置为真空泵。
  34. 根据权利要求32所述的烹饪器具,其特征在于,所述盖体包括内盖和连接在所述内盖的朝向所述烹饪腔一侧的盖板,所述防堵件包括:
    固定部,所述固定部的至少一部分横截面面积大于所述抽气口的横截面面积且位于所述盖板的朝向所述内盖的一侧;
    防堵部,所述防堵部与所述固定部连接且位于所述盖板的背向所述内盖的一侧,所述防堵部朝向所述盖板的一侧具有至少一个凹槽以在所述抽气装置工作时与所述盖板限定出所述气流通道,所述凹槽的横截面面积为所述S1,
    其中,所述凹槽包括多个,且多个所述凹槽沿所述固定部的周向间隔分布,多个所述凹槽的横截面面积总和S2大于等于7mm 2;和/或,所述凹槽形成为方形、圆形、V形;和/或,所述固定部与所述防堵部的连接处具有用于避让所述抽气口的环形凹槽,所述凹槽连通至所述环形凹槽;和/或,所述固定部的至少一部分形成圆台状或圆锥状。
  35. 根据权利要求34所述的烹饪器具,其特征在于,还包括:设在所述内盖的连接接头,所述连接接头具有与所述抽气口导通的连接通道,所述抽气装置连通至所述连接通道。
PCT/CN2018/089951 2017-12-29 2018-06-05 用于烹饪器具的泄压装置和烹饪器具 WO2019128111A1 (zh)

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