WO2016183704A1 - 一种蒸箱微波炉一体机的门 - Google Patents

一种蒸箱微波炉一体机的门 Download PDF

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Publication number
WO2016183704A1
WO2016183704A1 PCT/CN2015/000878 CN2015000878W WO2016183704A1 WO 2016183704 A1 WO2016183704 A1 WO 2016183704A1 CN 2015000878 W CN2015000878 W CN 2015000878W WO 2016183704 A1 WO2016183704 A1 WO 2016183704A1
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WO
WIPO (PCT)
Prior art keywords
door
hinge
door body
seal ring
compression spring
Prior art date
Application number
PCT/CN2015/000878
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English (en)
French (fr)
Inventor
王武刚
文广才
曹骥
茅忠群
诸永定
Original Assignee
宁波方太厨具有限公司
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Publication date
Application filed by 宁波方太厨具有限公司 filed Critical 宁波方太厨具有限公司
Publication of WO2016183704A1 publication Critical patent/WO2016183704A1/zh

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/6414—Aspects relating to the door of the microwave heating apparatus
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/02—Stoves or ranges heated by electric energy using microwaves

Definitions

  • the invention relates to the technical field of a steamer microwave oven integrated machine, in particular to a door for a steamer microwave oven integrated machine.
  • the steamer door on the market can only seal the steam in the cooking cavity, and the door of the microwave oven can only seal the microwave in the cooking cavity.
  • the steamer microwave oven integrated machine has been disclosed in the prior art.
  • the integrated machine integrates the functions of the electric steamer and the microwave oven, and the sealing structure of the door body assembly is very important, and it is necessary to ensure that the microwave does not leak, and at the same time Also ensure that steam does not leak.
  • the steam seal of the common steamer, the door assembly of the steamer microwave oven and the cavity are mainly sealed by the rubber applied to the door assembly mounted on the cavity by the hinge applied to the door assembly, but due to the door
  • the steamer and steamer microwave oven are operated by steam or combined steam, the steam in the cavity is more and more in the working process, although most machines are designed with a steamer cycle to discharge or depressurize excess steam, but the cavity
  • the pressure will gradually increase during the work process, which will cause a certain pressure on the door body.
  • the manufacturing error of the rubber parts in the door body, the manufacturing error of the hinge and the flatness error of the door assembly often occur. Steam leakage occurred during the process.
  • the "one steamer microwave oven integrated machine" has a door handle, which is sequentially provided from the outside to the inside.
  • Door glass, door bracket, metal door body, door body seal bracket, door body seal ring and door seal the middle part of the door seal is hollowed out so that the inner side of the metal door body is exposed, and the door handle is fixed on the outer side of the door glass, the door body
  • the outer side of the bracket is fixed on the inner side of the door glass
  • the metal door body is fixed on the door body bracket through the door seal
  • the door body seal ring bracket is disposed between the door seal and the metal door body
  • the door body seal ring is disposed on the door body seal ring bracket.
  • the hinge structure of the pull-down microwave oven door body disclosed in the Chinese utility model patent is ZL 201220268731.0 (authorization bulletin number CN 202659009 U), and the hinge structure includes a hinge, a hinge support, a hinge shaft, a hinge bracket, and a hinge fixing.
  • the hinge structure can reduce the problems caused by the accumulated tolerances during assembly, the assembly is convenient, the manufacturing cost is low, and the microwave can be widely applied to microwaves.
  • the door body of the household appliance such as the furnace and the electric oven is hinged.
  • the hinge structure adopts a single spring structure, there is a feeling that the door opening and closing are not good, and after the door is closed, the pressure spring cannot continue to press the door.
  • the board that is, does not provide sufficient door closing force, which may result in poor microwave sealing of the door body.
  • the first technical problem to be solved by the present invention is to provide a door of a steamer microwave oven integrated machine capable of simultaneously sealing steam and microwave in a cooking chamber and having a good sealing effect in view of the above state of the art.
  • the second technical problem to be solved by the present invention is to provide a door of a steamer microwave oven integrated machine which is capable of opening and closing the door and providing a door closing force in a closed state in view of the above state of the art.
  • the door of the steamer microwave oven integrated machine comprises a panel, a face frame, a door body, a door seal ring bracket, a door sealing ring, a door seal and a back plate
  • the door frame is fixed on the back of the panel
  • the door body is fixed on the back of the face frame
  • the door seal ring bracket is disposed in the door body
  • the door seal ring is mounted on the door seal ring bracket
  • the door seal and the face frame are
  • the back plate is fixed on the back of the door body, and the back plate and the door body and the door seal ring bracket are sealed with the door body, and the door sealing ring is simultaneously connected with the door body and the front plate of the cavity. Sealing, the back surface of the door body and the front surface of the cavity form a microwave sealing surface.
  • the front surface of the face frame is adhered and fixed to the back surface of the panel, and a groove is formed on the front surface of the face frame, and a screw column is formed on the back surface of the face frame, and is provided at a corresponding position of the door body.
  • a through hole through which the screw passes, and the door body is fixed to the face frame by a screw connection.
  • the door seal ring bracket is fixedly engaged with the door body, and the door seal is simultaneously fixedly fixed with the door seal ring bracket, the door body and the face frame, at the door.
  • the first pin, the second leg and the third leg are respectively disposed on the outer ring of the inner ring, and the first buckle corresponding to the first leg is disposed on the circumference of the door sealing ring bracket a second buckle corresponding to the second leg is disposed on a circumference of the door body, and a third buckle corresponding to the third leg is disposed on a circumference of the face frame;
  • the circumference of the door seal ring bracket is further provided with a fourth clamping leg, and a corresponding surface of the door is provided with a bayonet corresponding to the fourth clamping leg.
  • a card slot for the door seal ring to be engaged is formed on the inner circumferential surface of the door seal ring bracket, and at least the outer peripheral surface of the door seal ring is convex at least Two sealing rings sealed to the door.
  • the door seal is raised above the microwave sealing surface.
  • the door sealing ring will form a certain amount of compression under the action of the pressing force and closely adhere to the front plate of the cavity to seal the steam.
  • the back plate and the door body and the door seal ring bracket and the door body are sealed and sealed by a sealant.
  • the circumference of the door body is provided with a choke groove for suppressing microwaves.
  • a hinge fixing plate is fixed at a bottom of the door body, a hinge is mounted on the hinge fixing plate, and a door hook fixing frame is fixed on a top of the door body, and the door hook fixing frame is fixed on the door hook fixing frame.
  • Fixed and assembled The door lock on the cavity cooperates with the door hook. In this way, after closing the door, the door hook and the hinge form a double closing force to ensure reliable steam and microwave sealing.
  • the door body and the hinge fixing plate and the door body and the door hook fixing frame are welded and fixed. It is preferred to use energy storage soldering for connection and fixing.
  • the door of the steamer microwave oven integrated machine includes a hinge seat, a hinge swing lever, a hinge link, a tension spring and a compression spring mechanism, the hinge The bottom end of the swinging rod is hinged to the front end of the hinge seat, the hinge link is disposed above the hinge seat, and the front end of the hinge link is hinged to the bottom end of the hinge swing rod, and the tension spring is always in a stretched state, the tension spring The front end is mounted at the rear end of the hinge link, and the rear end of the tension spring is mounted at the rear end of the hinge seat.
  • the compression spring mechanism is mounted on the hinge seat and below the hinge link, and the door is closed and opened.
  • the compression spring mechanism applies a force to the hinge swing lever to generate a force that prevents the door from being opened.
  • the compression spring mechanism releases the hinge swing The force of the rod no longer creates a force that prevents the door from being opened.
  • the two side walls of the front end of the hinge seat are provided with strip-shaped mounting holes horizontally disposed and distributed from the front to the rear, and a vertical limiting plate is disposed on the hinge seat at the rear of the strip-shaped mounting hole.
  • the vertical limiting plate is provided with a limiting hole
  • the compression spring mechanism comprises a sliding shaft, a compression spring penetrating rod and a compression spring, and two ends of the sliding shaft are respectively disposed in the strip-shaped mounting holes of the corresponding side, and slide
  • the shaft can slide back and forth in the strip mounting hole, the front end of the compression spring rod is fixed in the middle of the sliding shaft, and the rear end of the compression spring rod is inserted in the limiting hole, the compression spring sleeve a front end of the compression spring abuts against a front end portion of the compression spring, and a rear end of the compression spring abuts against the limiting plate, and the sliding shaft is mounted on the sliding shaft to directly act on the hinge
  • the urging member of the rod in
  • an arcuate notch is formed at a bottom end of the hinge swinging rod, and the urging member is a pulley sleeved on the sliding shaft, and the pulley is in a state where the door is closed and opened less than a set angle.
  • the arcuate notch is embedded, and the pulley is disengaged from the arcuate notch in a state where the door is opened beyond a set angle.
  • a bottom portion of the front end of the hinge link is provided with a first sliding slot that can be inserted into the top of the pulley in the closed state, and a second sliding slot is provided at the bottom of the hinge link at the hinge.
  • a corresponding position of the seat is fixed to the limit shaft, and a limit wheel embedded in the second chute in the closed state is sleeved on the limit shaft.
  • the invention has the advantages that the steamer microwave oven integrated door is sealed between the door and the door body and the door seal ring bracket and the door body, and the door seal ring simultaneously with the door body and the cavity
  • the front plate is sealed to prevent steam leakage.
  • the microwave sealing surface formed between the back of the door and the front plate of the cavity can prevent microwave leakage.
  • the hinge spring mechanism and the tension spring jointly control the strength when opening and closing the door, ensuring that the door opening and closing feeling are moderate.
  • the pressure spring mechanism can continue to exert a certain closing force on the door to prevent the door from being fired during the cooking process. Open to ensure the sealing effect of steam and microwave.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention
  • FIG. 2 is a perspective exploded view of an embodiment of the present invention
  • Figure 3 is a partial cross-sectional view showing an embodiment of the present invention.
  • Figure 4 is a partial cross-sectional view showing the door closing state according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a face frame according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural view of a door body according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural view of a door seal according to an embodiment of the present invention.
  • Figure 8 is a schematic structural view of the embodiment of the present invention in a closed state
  • FIG. 9 is a schematic structural view of the door when the door is just opened to a set angle according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural view of a door when the door is opened to a maximum angle according to an embodiment of the present invention
  • Figure 11 is a cross-sectional view showing the door in a closed state according to an embodiment of the present invention.
  • Figure 12 is a cross-sectional view showing the door just opened to a set angle according to an embodiment of the present invention.
  • Figure 13 is a cross-sectional view of the embodiment of the present invention when the door is opened to a maximum angle
  • Figure 14 is a schematic view showing the mounting structure of the compression spring mechanism on the hinge base according to the embodiment of the present invention.
  • the door of the steamer microwave oven integrated machine in the embodiment includes a panel 1, a face frame 2, a door body 3, a door seal ring bracket 4, a door seal ring 5, a door seal 6, and a back plate. 7. Hinge fixing plate 8, hinge 9, door hook fixing frame 10, door hook 11, handle 12 and handle fixing sleeve 13 and the like.
  • the panel 1 is a door glass
  • the face frame 2 is a plastic face frame
  • the face frame 2 is adhesively fixed on the back surface of the door glass 1.
  • the plastic face frame 2 and the door glass are positioned by 3M glue and bonded by silicone. The overflow is prevented, and the front surface of the face frame 2 is provided with a groove 21 which is criss-crossed.
  • a screw post 22 is formed on the back surface of the face frame 2, and the door body 3 is an iron door body.
  • a through hole 32 through which a screw passes is opened at a corresponding position of the door body 3, and the door body 3 is fixed to the face frame 2 by a screw connection. That is, the door body 3 is fixed to the back of the face frame 2.
  • the handle fixing sleeve 13 is mounted on the panel 1, and the handle 12 is mounted on the front side of the panel 1 through the handle fixing sleeve 13.
  • the door seal ring bracket 4 is fastened to the door body 3, and the door seal 6 is simultaneously fixed by the door seal ring bracket 4, the door body 3 and the face frame 2.
  • the specific snap-fit structure between the above components is as follows: the door seal 6 is outward from the inner ring
  • the first leg 61, the second leg 62 and the third leg 63 are respectively disposed on the ring, and the first buckle 42 corresponding to the first leg 61 is disposed on the circumference of the door seal ring bracket 4 at the door a second buckle 33 corresponding to the second leg 62 is disposed on the circumference of the body 3, and a third buckle 23 corresponding to the third leg 63 is disposed on the circumference of the face frame 2;
  • the door seal bracket A fourth leg 43 is further provided on the circumference of the fourth leg, and a bayonet 34 that cooperates with the fourth leg 43 is provided at a corresponding position of the door body 3.
  • the portion of the rear surface of the door body 3 facing the front plate of the cavity forms a microwave sealing surface 31 which is located inside the door sealing ring 5. Further, the circumference of the door body 3 is provided with a choke groove 35 for suppressing microwaves.
  • a card groove 41 into which the door seal ring 5 is engaged is formed, and at least two seal rings 51 which are sealed with the door body 3 are protruded on the outer peripheral surface of the door seal ring 5
  • the door seal ring 5 is simultaneously sealed with the door body 3 and the cavity front plate 14.
  • the door seal ring bracket 4 and the door seal ring 5 are fastened together and then inserted into the entry body 3.
  • the door seal ring bracket 4 is snap-fitted to the inner side of the choke groove 35.
  • the door sealing ring 5 is made of a flexible silicone rubber material, and the height of the door sealing ring 5 is slightly higher than that of the door body 3, that is, the door sealing ring is higher than the microwave sealing surface 31, and after the door is closed, the door sealing ring 5 is pressed. Under the action of the force, a certain amount of compression is formed and tightly adhered to the cavity front plate 14 to seal the steam.
  • the back plate 7 in this embodiment is a door inner glass, the door inner glass is fixed on the back side of the door body 3, and the silicone glass is sealed between the door inner glass and the door body 3, and the door seal ring bracket 4 and the door are sealed.
  • the contact portion of the body 3 is also sealed with silica gel, thereby effectively preventing steam from leaking at the contact portion.
  • the door body 3, the hinge fixing plate 8, and the door hook fixing frame 10 constitute a door body assembly, and the energy storage between the door body 3 and the hinge fixing plate 8 and between the door hook fixing frame 10 and the door body 3 is performed. welding.
  • the hinges 9 are provided on both sides of the bottom of the door body 3, and the hinges 9 and the hinge fixing plates 8 are fixed by screws, and the hinges 9 are used to open and close the doors.
  • the door hook 11 is fixed to the door hook holder 10 by screws. After closing the door, the door hook 11 is engaged with the door lock fitted above the cavity, and together with the hinge 9, a double closing force is formed, thereby ensuring reliable steam and microwave sealing.
  • the hinge 9 in this embodiment includes a hinge assembly 91, a hinge swing lever 92, a hinge link 93, a tension spring 94, a compression spring mechanism 95, and the like, and the hinge swing lever 92 is fixed to the hinge. Fixing plate 8.
  • the direction indicated by the arrow A in FIG. 8 is the forward direction, and the bottom end of the hinge swing lever 92 is hinged to the front end of the hinge base 91 through the first hinge shaft 971, and the hinge link 93 is disposed above the hinge base 91, and the hinge link 93 is provided.
  • the front end of the hinge link 92 is hinged to the bottom end of the hinge swing lever 92, the rear end of the hinge link 93 is mounted with a first mounting shaft 981, and the rear end of the hinge base 91 is mounted with a second mounting shaft 982, a tension spring
  • the front end of the 94 is mounted on the first mounting shaft 981, the rear end of the tension spring 94 is mounted on the second mounting shaft 982, and the tension spring 94 is always in a stretched state.
  • the compression spring mechanism 95 is mounted on the hinge base 91 and below the hinge link 93. Specifically, the two side walls of the front end of the hinge base 91 are provided with strip-shaped mounting holes 911 horizontally disposed and distributed from the front to the rear, and a vertical limit is arranged inside the hinge seat 91 and behind the strip-shaped mounting hole 911.
  • the plate 912 has a limiting hole 913 formed in the vertical limiting plate 912.
  • the compression spring mechanism 95 in this embodiment includes a sliding shaft 951, a compression spring penetration rod 952, and a compression spring 953.
  • the sliding shaft 951 is horizontally disposed and perpendicular to the longitudinal direction of the strip-shaped mounting hole 911, and both ends of the sliding shaft 951 are respectively disposed at Bar on the corresponding side In the hole 911, the sliding shaft 951 can slide forward and backward in the strip mounting hole 911 under the action of an external force, and the compression spring rod 952 is horizontally disposed and perpendicular to the sliding shaft 951, and the front end of the compression spring rod 952 is fixed to the sliding. In the middle of the shaft 951, the rear end of the compression spring rod 952 is bored in the limiting hole 913, and the compression spring 953 is sleeved on the compression spring rod 952.
  • the compression spring 953 is always in a compressed state, and the front end and the pressure of the compression spring 953 are pressed.
  • the front end portion of the spring rod 952 abuts, and the rear end of the pressure spring 953 abuts against the position plate 912.
  • a curved notch 921 is formed at the bottom end of the hinge swing lever 92, and a circular arc notch is preferentially used.
  • a pulley 954 is sleeved on the sliding shaft 951, and the pulley 954 acts as a biasing member to directly act on the hinge swing lever 92. In a state where the door is closed and opened less than the set angle, the pulley 954 is embedded in the curved notch 921 and abuts against the curved surface of the curved notch 921, and the pulley 954 is disengaged from the curved state when the door is opened beyond the set angle.
  • the set angle is set to 20 to 25 degrees.
  • the compression spring 953 Since the compression spring 953 is always in a compressed state, when the pulley 954 is embedded in the curved notch 921, the force generated by the compression spring 953 pushes the bottom of the hinge swing lever 92 through the slide shaft 951 and the pulley 954, thereby forming a force that prevents the door from being opened. . When the pulley 954 is disengaged from the curved notch 921, the compression spring 953 releases the force applied to the hinge swing lever 92, that is, the compression spring 953 no longer generates a force that prevents the door from being opened.
  • a first sliding slot 931 is disposed at the bottom of the front end of the hinge link 93.
  • the front side of the pulley 954 is embedded in the arcuate notch 921 of the hinge swinging lever 92, and the top of the pulley 954 is simultaneously embedded in the first chute.
  • the pulley 954 is further constrained.
  • a second sliding slot 932 is disposed at a bottom of the hinge link 93, and a limiting shaft 96 is fixed at a corresponding position of the hinge seat 91.
  • a limiting wheel 961 is sleeved on the limiting shaft 96. In the closed state, the limiting wheel is disposed. The 961 is embedded in the second chute 932 to further limit the hinge link 3. During the opening process, the limiting shaft 96 and the limiting wheel 961 are gradually disengaged from the second sliding slot 932.
  • first hinge shaft 971, the second hinge shaft 972, the first mounting shaft 981, the second mounting shaft 982, the sliding shaft 951 and the limiting shaft 96 are all made of rivets, and the structure is simple, firm and very easy to install. Convenience.
  • the front end of the hinge base 91 has a front end plane 914
  • the bottom end of the hinge swing rod 92 has a bottom end plane 922
  • the hinge swing lever 92 is rotated until the bottom end plane 922 collides with the front end plane 914.
  • the maximum opening angle of the door body is formed, and the maximum opening angle of the door body is less than 180°.
  • the bottom end plane 922 collides with the front end plane 914 to prevent the door opening angle from further increasing.
  • the door hinge works as follows:
  • the hinge swing lever 92 fixed to the door body 3 starts to rotate counterclockwise, the hinge swing lever 92 drives the hinge link 93 to move forward, and the hinge link 93 pulls the tension spring 94 forward, and the arc of the hinge swing lever 92
  • the notch 921 is relatively rolled with the pulley 954, and pushes the compression spring through the rod 952.
  • the compression spring 953 which is sleeved on the compression spring rod 952 starts to compress and generates a repulsive force, as the angle of the hinge swing lever 92 is opened.
  • the hinge swing lever 92 starts to rotate clockwise, the tension spring 94 is in the pulled-open state, the tension spring 94 pulls the hinge link 93 to move backward, and the hinge link 93 pulls the hinge swing lever 92 to rotate clockwise, thereby reducing the need for closing the door.
  • the manpower has maintained a good feel.
  • the hinge swing lever 92 continues to rotate clockwise.
  • the push spring spring rod 952 is moved to the right, and the compression spring 953 It is further compressed.
  • the compression spring 953 When the door has been closed, the compression spring 953 continues to be in a compressed state, pushing the hinge swing lever 92 to cause the hinge swing lever 92 to continue to rotate clockwise, but since the door is already closed, the resilience of the compression spring 953 causes The door continues to press the front plate to apply a certain amount of tightness to the door to prevent steam and microwave leakage.

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  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种蒸箱微波炉一体机的门，包括面板(1)、面框(2)、门体(3)、门密封圈支架(4)、门密封圈(5)、门封(6)和背板(7)，背板(7)与门体(3)以及门密封圈支架(4)与门体(3)均相密封，门密封圈(5)同时与门体(3)及腔体前板(14)相密封，门体(3)的背面与腔体前板(14)相正对的部位形成微波密封面(31)。门密封圈(5)同时与门体(3)及腔体前板(14)相密封，可以很好地防止蒸汽泄漏，门体(3)背面与腔体前板(14)之间形成的微波密封面(31)能有效防止微波泄漏。门体(3)的底部固定有铰链固定板(8)，在铰链固定板(8)上安装有铰链(9)，铰链(9)的压簧机构(95)和拉簧(94)共同控制开门和关门力度，保证开门和关门手感适中，门关上后，压簧机构(95)能继续对门施加一定的关紧力，防止烹饪过程中门被弹开，从而确保蒸汽、微波的密封效果。

Description

一种蒸箱微波炉一体机的门 技术领域
本发明涉及蒸箱微波炉一体机的技术领域，尤其涉及一种用于蒸箱微波炉一体机的门。
背景技术
目前，市场上的蒸箱门只能对烹饪腔体内的蒸汽进行密封，微波炉的门只能对烹饪腔体内的微波进行密封。现有技术中已经公开了蒸箱微波炉一体机，这种一体机将电蒸箱和微波炉的功能集成在一起，其门体组件的密封结构就显得非常重要，既要保证微波不会泄露，同时还要保证蒸汽也不会泄露。
常见的蒸箱、蒸箱微波炉的门组件和腔体的蒸汽密封主要靠安装在门组件的铰链施加力给安装在腔体上的或门组件上的橡胶密封件进行密封，但是由于要兼顾门体的蒸汽密封和用户的开门手感等，铰链力又不能设计的很大，如果铰链力设计过大，则用户开关门就很费力。当蒸箱、蒸箱微波炉采用蒸汽或组合蒸汽工作时，工作过程中，腔体内的蒸汽越来越多，虽然大多数机器设计有蒸箱循环将多余的蒸汽排出或泄压，但腔体的压力在工作过程中也会逐渐增大，会对门体上方产生一定的压力，再加上门体中橡胶件的制造误差、铰链的制造误差及门组件的平整度误差等，常常发生用户使用蒸箱过程中出现蒸汽泄露现象。又如专利号为ZL 201320797391.5(授权公告号为CN 203642257 U)的中国实用新型专利所公开的《一种蒸箱微波炉一体机》，该一体机炉门组件从外到内依次设有门把手、门玻璃、门体支架、金属门体、门体密封圈支架、门体密封圈和门封，门封中部镂空从而能使金属门体内侧中部外露，门把手固定在门玻璃外侧上，门体支架外侧固定在门玻璃内侧，金属门体通过门封固定在门体支架上，门体密封圈支架设于门封与金属门体之间，门体密封圈设置在门体密封圈支架上。虽然，该一体机的炉门组件能防止蒸汽和微波泄漏，但在密封效果上还有待进一步改进。
此外，蒸箱、烤箱、微波炉等烹饪类产品，有部分为下拉门结构，不可避免均需要使用铰链来控制开门和关门的力度，目前市场上的门铰链结构大部分为单弹簧结构，对开门和关门的力度控制不够理想。如专利号为ZL 201220268731.0(授权公告号为CN 202659009 U)中国实用新型专利所公开的《下拉式微波炉门体的铰链结构》，该铰链结构包括铰链、铰链支撑、铰链轴、铰链支架、铰链固定板以及弹簧，其中铰链支架与铰链通过铰链轴进行固定，铰链支架的内底部中部设置有两个或者两个以上的凸台，铰链固定板放置于凸台的一侧，弹簧为压簧，铰链与压簧装配在一起。虽然，该铰链结构可降低装配时由于累积公差而导致的问题，装配方便、制造成本低，并可广泛适用于微波 炉、电烤炉等家用电器的门体铰接，但是，由于该铰链结构采用单弹簧结构，因而存在着开门和关门手感不佳，并且在门关闭后，该压簧不能继续使门压紧前板，即不能提供足够的门关紧力，进而可能会导致门体的微波密封效果不佳。
发明内容
本发明所要解决的第一个技术问题是针对上述现有技术现状，提供一种能同时对烹饪腔体内的蒸汽和微波进行密封且密封效果好的蒸箱微波炉一体机的门。
本发明所要解决的第二个技术问题是针对上述现有技术现状，提供一种开门和关门手感好并在关门状态下能提供门关紧力的蒸箱微波炉一体机的门。
本发明解决上述第一个技术问题所采用的技术方案为；该蒸箱微波炉一体机的门，包括面板、面框、门体、门密封圈支架、门密封圈、门封和背板，所述面框固定在面板背部，所述门体固定在面框背部，所述门密封圈支架设于门体内，所述门密封圈安装在门密封圈支架上，所述门封与面框相固定，所述背板固定在门体背面，其特征在于：所述背板与门体以及门密封圈支架与门体均相密封，所述门密封圈同时与门体及腔体前板相密封，所述门体的背面与腔体前板相正对的部位形成微波密封面。
优选地，所述面框的正面与面板的背面粘接固定，且在面框的正面开有纵横交错的沟槽，在面框的背面形成有螺钉柱，在门体的对应位置开有供螺钉穿过的通孔，所述门体通过螺钉连接固定在面框上。
为了使门体的安装结构更为牢固，所述门密封圈支架与门体卡接固定，所述门封同时与所述门密封圈支架、门体以及面框卡接固定，在所述门封上自内圈向外圈分别设有第一卡脚、第二卡脚和第三卡脚，在所述门密封圈支架的周圈设有与第一卡脚相对应的第一卡扣，在所述门体的周圈设有与第二卡脚相对应的第二卡扣，在所述面框的周圈设有与第三卡脚相对应的第三卡扣；在所述门密封圈支架的周圈还设有第四卡脚，在所述门的对应位置上设有与第四卡脚相配合的卡口。
为了使门密封圈安装牢固并提高密封效果，在所述门密封圈支架的内周面上形成有供所述门密封圈卡入的卡槽，在门密封圈的外周面上外凸有至少两个与门体相密封的密封环。
为了进一步提高蒸汽密封效果，所述门密封圈高出于所述微波密封面。这样，关紧门之后，门密封圈在压紧力的作用下会形成一定压缩量并紧紧贴住腔体前板，进而对蒸汽进行密封。
优选地，所述背板与门体以及门密封圈支架与门体之间均通过密封胶密封连接。
优选地，所述门体的周圈设有用于抑制微波的扼流槽。
作为上述任一方案的优选，在所述门体的底部固定有铰链固定板，在铰链固定板上安装有铰链，在所述门体的顶部固定有门钩固定架，在门钩固定架上固定有能与装配在 腔体上的门锁相配合的门钩。这样，关门之后，门钩与铰链一起形成双重关紧力，确保蒸汽、微波密封可靠。并且，门体与铰链固定板以及门体与门钩固定架之间均焊接固定。优先采用储能焊接进行连接固定。
本发明解决上述第二个技术问题所采用的技术方案为：该蒸箱微波炉一体机的门，所述铰链包括铰链座、铰链摆杆、铰链连杆、拉簧和压簧机构，所述铰链摆杆底端与铰链座的前端相铰接，所述铰链连杆设于铰链座的上方，铰链连杆的前端铰接于铰链摆杆的底端，所述拉簧始终处于拉伸状态，拉簧的前端安装在铰链连杆的后端，拉簧的后端安装在铰链座的后端，所述压簧机构安装在铰链座上并位于所述铰链连杆的下方，在门处于关闭和打开小于设定角度的状态下，所述压簧机构施力于铰链摆杆而产生阻止门被打开的力，在门打开至超过上述设定角度的状态下，所述压簧机构解除对铰链摆杆的施力而不再产生阻止门被打开的力。
优选地，所述铰链座前端的两侧壁上均开有水平设置并自前向后分布的条形安装孔，在铰链座上位于条形安装孔的后方设有竖向限位板，在所述竖向限位板上开有限位孔，所述压簧机构包括滑动轴、压簧穿杆和压簧，所述滑动轴的两端分别设于对应侧的条形安装孔内，且滑动轴能在条形安装孔内前后向滑动，所述压簧穿杆的前端固定在滑动轴的中间，压簧穿杆的后端穿设在所述限位孔内，所述压簧套设在所述压簧穿杆上，压簧的前端与压簧穿杆的前端部相抵，压簧的后端与所述限位板相抵，在所述滑动轴上安装有能直接作用于铰链摆杆的施力部件，在门处于关闭和打开小于设定角度的状态下，所述施力部件在压簧的弹力下施力于铰链摆杆而产生阻止门被打开的力。
优选地，在所述铰链摆杆的底端形成有弧形缺口，所述施力部件为套设在滑动轴上的滑轮，在门处于关闭及打开小于设定角度的状态下，所述滑轮嵌入所述弧形缺口，在门打开超过设定角度的状态下，所述滑轮脱离所述弧形缺口。这样，随着铰链摆杆的摆动，滑轮能顺利嵌入弧形缺口内或者从弧形缺口脱离，相应地，滑轮对铰链摆杆产生推力或者推力消失。
优选地，在所述铰链连杆前端的底部设有在关门状态下能供滑轮的顶部嵌入的第一滑槽，在所述铰链连杆中间的底部设有第二滑槽，在所述铰链座的对应位置固定有限位轴，在所述限位轴上套设有在关门状态下嵌入在所述第二滑槽内的限位轮。采用上述结构后，在关门状态下，滑轮前侧部嵌入弧形缺口内的同时，滑轮的顶部同时嵌入在第一滑槽内，从而使滑轮得以进一步限位，限位轮嵌入第二滑槽内对铰链连杆作进一步限位，并且开门过程中，限位轴和限位轮逐渐脱离第二滑槽，铰链座与铰链连杆相脱开。
与现有技术相比，本发明的优点在于：该蒸箱微波炉一体机门通过背板与门体以及门密封圈支架与门体之间相密封，门密封圈则同时与门体及腔体前板相密封，可以很好地防止蒸汽泄漏，同时，门体背面与腔体前板之间形成的微波密封面能很好地防止微波泄漏。
此外，铰链的压簧机构和拉簧共同控制开门和关门时的力度，保证开门和关门手感适中，在门关上后，压簧机构能继续对门施加一定的关紧力，防止烹饪过程中门被弹开，从而确保蒸汽、微波的密封效果。
附图说明
图1为本发明实施例的结构示意图；
图2为本发明实施例的立体分解示意图；
图3为本发明实施例的局部剖视图；
图4为本发明实施例关门状态下的局部剖视图；
图5为本发明实施例的面框的结构示意图；
图6为本发明实施例的门体的结构示意图；
图7为本发明实施例的门封的结构示意图；
图8为本发明实施例在关门状态下的结构示意图；
图9为本发明实施例在门刚打开至设定角度时的结构示意图；
图10为本发明实施例在门打开到最大角度时的结构示意图；
图11为本发明实施例在关门状态下的剖视图；
图12为本发明实施例在门刚打开至设定角度时的剖视图；
图13为本发明实施例在门打开到最大角度时的剖视图；
图14为本发明实施例的压簧机构在铰链座上的安装结构示意图。
具体实施方式
以下结合附图实施例对本发明作进一步详细描述。
如图1至图7所示，本实施例中的蒸箱微波炉一体机的门包括面板1、面框2、门体3、门密封圈支架4、门密封圈5、门封6、背板7、铰链固定板8、铰链9、门钩固定架10、门钩11、把手12和把手固定套13等组件。
本实施例中，面板1为门玻璃，面框2为塑胶面框，面框2粘接固定在门玻璃1背面，塑胶面框2与门玻璃之间通过3M胶定位、硅胶粘接，为防止溢胶，面框2的正面开有纵横交错的沟槽21。在面框2的背面形成有螺钉柱22，门体3为铁门体，在门体3的对应位置开有供螺钉穿过的通孔32，门体3通过螺钉连接固定在面框2上，即门体3固定在面框2背面。把手固定套13安装在面板1上，把手12通过把手固定套13安装在面板1正面。
门密封圈支架4与门体3卡接固定，门封6同时门密封圈支架4、门体3以及面框2卡接固定。本实施例中，上述各组件之间具体的卡接结构如下：门封6上自内圈向外 圈分别设有第一卡脚61、第二卡脚62和第三卡脚63，在门密封圈支架4的周圈设有与第一卡脚61相对应的第一卡扣42，在门体3的周圈设有与第二卡脚62相对应的第二卡扣33，在面框2的周圈设有与第三卡脚63相对应的第三卡扣23；门密封圈支架4的周圈还设有第四卡脚43，在门体3的对应位置上设有与第四卡脚43相配合的卡口34。
为了有效防止微波泄漏，本实施例中，门体3的背面与腔体前板相正对的部位形成微波密封面31，该微波密封面31位于门密封圈5的内侧。此外，门体3的周圈设有用于抑制微波的扼流槽35。
在门密封圈支架4的内周面上形成有供门密封圈5卡入的卡槽41，在门密封圈5的外周面上外凸有至少两个与门体3相密封的密封环51，门密封圈5同时与门体3及腔体前板14相密封。安装时，门密封圈支架4与门密封圈5扣好后一起卡入门体3内，安装完毕后，门密封圈支架4卡接固定在扼流槽35的内侧。
门密封圈5采用具有弹性的硅橡胶材料制成，门密封圈5的高度稍稍高于门体3，即门密封圈高出于微波密封面31，关紧门之后，门密封圈5在压紧力的作用下会形成一定压缩量并紧紧贴住腔体前板14，从而对蒸汽进行密封。此外，本实施例中的背板7为门内玻璃，门内玻璃固定在门体3背面，门内玻璃与门体3的接触部位之间打硅胶进行密封，在门密封圈支架4与门体3接触部位也打硅胶进行密封，从而有效防止蒸汽在上述接触部位产生泄漏。
本实施例中，门体3、铰链固定板8、门钩固定架10组成门体组件，门体3与铰链固定板8之间以及门钩固定架10与门体3之间均为储能焊接。铰链9设于门体3底部的两侧，铰链9与铰链固定板8通过螺钉固定，通过铰链9来实现门的开启和关闭。门钩11通过螺钉固定在门钩固定架10上。关门之后，门钩11与装配在腔体上方的门锁扣合，就会和铰链9一起形成双重关紧力，从而确保蒸汽、微波密封可靠。
如图8至图14所示，本实施例中的铰链9包括铰链座91、铰链摆杆92、铰链连杆93、拉簧94、压簧机构95等主要组件，铰链摆杆92固定在铰链固定板8上。
以图8箭头A所示方向为前向，铰链摆杆92的底端通过第一铰接轴971与铰链座91的前端相铰接，铰链连杆93设于铰链座91的上方，铰链连杆93的前端通过第二铰接轴972与铰链摆杆92的底端相铰接，铰链连杆93的后端安装有第一安装轴981，铰链座91的后端安装有第二安装轴982，拉簧94的前端安装在第一安装轴981上，拉簧94的后端安装在第二安装轴982上，且拉簧94始终处于拉伸状态。
压簧机构95安装在铰链座91上并位于铰链连杆93的下方。具体地，铰链座91前端的两侧壁上均开有水平设置并自前向后分布的条形安装孔911，在铰链座91的内部并位于条形安装孔911的后方设有竖向限位板912，在竖向限位板912上开有限位孔913。本实施例中的压簧机构95包括滑动轴951、压簧穿杆952和压簧953，滑动轴951水平设置并垂直于条形安装孔911的长度方向，滑动轴951的两端分别设于对应侧的条形安 装孔911内，滑动轴951在外力的作用下能在条形安装孔911内前后向滑动，压簧穿杆952水平设置并与滑动轴951相垂直，压簧穿杆952的前端固定在滑动轴951的中间，压簧穿杆952的后端穿设在限位孔913内，压簧953套设在压簧穿杆952上，压簧953始终处于压缩状态，压簧953的前端与压簧穿杆952的前端部相抵，压簧953的后端与所述限位板912相抵。
在铰链摆杆92的底端形成有弧形缺口921，优先采用圆弧缺口，在滑动轴951上套设有滑轮954，滑轮954作为施力部件能直接作用于铰链摆杆92。在门处于关闭及打开小于设定角度的状态下，滑轮954嵌入弧形缺口921内并与弧形缺口921的弧形面相抵，在门打开超过设定角度的状态下，滑轮954脱离弧形缺口921，本实施例中，上述设定角度设定为20～25°。由于压簧953始终处于压缩状态，因而在滑轮954嵌入弧形缺口921内时，压簧953产生的力通过滑动轴951和滑轮954推动铰链摆杆92的底部，从而形成阻止门被打开的力。当滑轮954脱离弧形缺口921后，压簧953解除对铰链摆杆92的施力，即压簧953不再产生阻止门被打开的力。
在铰链连杆93的前端底部设有第一滑槽931，在关门状态下，滑轮954前侧部嵌入铰链摆杆92的弧形缺口921内的同时，滑轮954顶部同时嵌入在第一滑槽931内，从而使滑轮954得以进一步限位。在铰链连杆93中间的底部设有第二滑槽932，在铰链座91的对应位置固定有限位轴96，在限位轴96上套设有限位轮961，在关门状态下，限位轮961嵌入第二滑槽932内，从而对铰链连杆3进行进一步限位。开门过程中，限位轴96和限位轮961逐步从第二滑槽932脱离。
本实施例中，第一铰接轴971、第二铰接轴972、第一安装轴981、第二安装轴982、滑动轴951和限位轴96均采用铆钉制成，结构简单、牢固且安装非常方便。
另外，如图12和图13所示，铰链座91的前端具有前端平面914，铰链摆杆92的底端具有底端平面922，铰链摆杆92转动至底端平面922与前端平面914相碰而形成门体的最大打开角度，且该门体最大打开角度小于180°。底端平面922与前端平面914相碰后可以防止门打开角度进一步增大。
该门铰链的工作过程如下：
开门时，与门体3固定的铰链摆杆92开始逆时针转动，铰链摆杆92带动铰链连杆93向前移动，铰链连杆93向前拉开拉簧94，同时铰链摆杆92的弧形缺口921与滑轮954相对滚动，将压簧穿杆952向后推动，此时套设在压簧穿杆952上的压簧953开始压缩并产生反弹力，随着铰链摆杆92打开的角度增大，拉簧94、压簧953所产生的阻止门打开的力逐渐变大，但是当门打开到20～25°时，铰链摆杆92的弧形缺口921滑过滑轮954，压簧953已经回弹且不再起作用，此时只有拉簧94起作用，从而防止开门的力越来越大，进而使整个开门过程的手感保持适中。门打开至最大角度时，铰链摆杆92转动至底端平面922与前端平面914相碰，保证门的最大打开角度小于180度，从而 避免放置在门上的菜肴滑落。
关门时，铰链摆杆92开始顺时针转动，拉簧94处于拉开状态，拉簧94拉动铰链连杆93往后移动，铰链连杆93拉动铰链摆杆92顺时针转动，减少了关门所需要的人力，保持了好的手感。铰链摆杆92继续顺时针转动，当转动到门打开到20～25°时，由于铰链摆杆92的弧形缺口921与滑轮954开始接触，推动压簧穿杆952向右移动，压簧953被进一步压缩。当门已经关到位时，压簧953仍继续处于压缩状态，推动铰链摆杆92使铰链摆杆92具有继续顺时针转动的趋势，但由于门已经关到位，因此，压簧953的回弹力使门继续压紧前板以对门施加一定的关紧力，从而防止蒸汽、微波泄漏。

Claims (10)

  1. 一种蒸箱微波炉一体机的门，包括面板(1)、面框(2)、门体(3)、门密封圈支架(4)、门密封圈(5)、门封(6)和背板(7)；
    所述面框(2)固定在面板(1)背部，所述门体(3)固定在面框(2)背部，所述门密封圈支架(4)设于门体(3)内，所述门密封圈(5)安装在门密封圈支架(4)上，所述门封(6)与面框(2)相固定，所述背板(7)固定在门体(3)背面，其特征在于：
    所述背板(7)与门体(3)以及门密封圈支架(4)与门体(3)均相密封，所述门密封圈(5)同时与门体(3)及腔体前板相密封，所述门体(3)的背面与腔体前板相正对的部位形成微波密封面(31)。
  2. 根据权利要求1所述的门，其特征在于：所述面框(2)的正面与面板(1)的背面粘接固定，且在面框(2)的正面开有纵横交错的沟槽(21)，在面框(2)的背面形成有螺钉柱(22)，在门体(3)的对应位置开有供螺钉穿过的通孔(32)，所述门体(3)通过螺钉连接固定在面框(2)上。
  3. 根据权利要求1所述的门，其特征在于：所述门密封圈支架(4)与门体(3)卡接固定，所述门封(6)同时与所述门密封圈支架(4)、门体(3)以及面框(2)卡接固定，在所述门封(6)上自内圈向外圈分别设有第一卡脚(61)、第二卡脚(62)和第三卡脚(63)，在所述门密封圈支架(4)的周圈设有与第一卡脚(61)相对应的第一卡扣(42)，在所述门体(3)的周圈设有与第二卡脚(62)相对应的第二卡扣(33)，在所述面框(2)的周圈设有与第三卡脚(63)相对应的第三卡扣(23)；在所述门密封圈支架(4)的周圈还设有第四卡脚(43)，在所述门体(3)的对应位置上设有与第四卡脚(43)相配合的卡口(34)。
  4. 根据权利要求1所述的门，其特征在于：在所述门密封圈支架(4)的内周面上形成有供所述门密封圈(5)卡入的卡槽(41)，在门密封圈(5)的外周面上外凸有至少两个与门体(3)相密封的密封环(51)。
  5. 根据权利要求1所述的门，其特征在于：所述门密封圈(5)高出于所述微波密封面(31)。
  6. 根据权利要求1至5中任一权利要求所述的门，其特征在于：在所述门体(3)的底部固定有铰链固定板(8)，在铰链固定板(8)上安装有铰链(9)，在所述门体(3)的顶部固定有门钩固定架(10)，在门钩固定架(10)上固定有能与装配在腔体上的门锁相配合的门钩(11)。
  7. 根据权利要求6所述的门，其特征在于：所述铰链包括铰链座(91)、铰链摆杆(92)、铰链连杆(93)、拉簧(94)和压簧机构(95)，所述铰链摆杆(92)底端与铰链座(91)的前端相铰接，所述铰链连杆(93)设于铰链座(91)的上方，铰链连杆(93)的前端铰接于铰链摆杆(92)的底端，所述拉簧(94)始终处于拉伸状态，拉簧(94)的前端安装在铰链连杆(93)的后端，拉簧(94)的后端安装在铰链座(91)的后端，所述压簧机构(95)安装在铰链座(91)上并位于 所述铰链连杆(93)的下方，在门处于关闭和打开小于设定角度的状态下，所述压簧机构(95)施力于铰链摆杆(92)而产生阻止门被打开的力，在门打开至超过上述设定角度的状态下，所述压簧机构(95)解除对铰链摆杆(92)的施力而不再产生阻止门被打开的力。
  8. 根据权利要求7所述的门，其特征在于：所述铰链座(91)前端的两侧壁上均开有水平设置并自前向后分布的条形安装孔(911)，在铰链座(91)上位于条形安装孔(911)的后方设有竖向限位板(912)，在所述竖向限位板(912)上开有限位孔(913)；
    所述压簧机构(95)包括滑动轴(951)、压簧穿杆(952)和压簧(953)，所述滑动轴(951)的两端分别设于对应侧的条形安装孔(911)内，且滑动轴(951)能在条形安装孔(911)内前后向滑动，所述压簧穿杆(952)的前端固定在滑动轴(951)的中间，压簧穿杆(952)的后端穿设在所述限位孔(913)内，所述压簧(953)套设在压簧穿杆(952)上，压簧(953)的前端与压簧穿杆(952)的前端部相抵，压簧(953)的后端与限位板(912)相抵，在滑动轴(951)上安装有能直接作用于铰链摆杆(92)的施力部件，在门处于关闭和打开小于设定角度的状态
    Figure PCTCN2015000878-appb-100001
  9. 根据权利要求8所述的门，其特征在于，在所述
    Figure PCTCN2015000878-appb-100002
    形成有弧形缺口(921)，所述施力部件为套设在滑动轴(951)上的滑轮(954)，在门处于关闭及打开小于设定角度的状态下，所述滑轮(954)嵌入所述弧形缺口(221)，在门打开超过设定角度的状态下，所述滑轮(954)脱离弧形缺口(921)。
  10. 根据权利要求9所述的门，其特征在于：在所述铰链连杆(93)前端的底部设有在关门状态下能供滑轮(954)的顶部嵌入的第一滑槽(931)，在所述铰链连杆(3)中间的底部设有第二滑槽(932)，在所述铰链座(1)的对应位置固定有限位轴(96)，在所述限位轴(96)上套设有在关门状态下嵌入在第二滑槽(932)内的限位轮(961)。
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CN109901241A (zh) * 2019-04-17 2019-06-18 河北冀云气象技术服务有限责任公司 一种基于物联网的农业气象监测装置
CN109901241B (zh) * 2019-04-17 2024-02-06 河北冀云气象技术服务有限责任公司 一种基于物联网的农业气象监测装置

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