WO2012152093A1 - 微波炉的开门结构 - Google Patents

微波炉的开门结构 Download PDF

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Publication number
WO2012152093A1
WO2012152093A1 PCT/CN2012/070779 CN2012070779W WO2012152093A1 WO 2012152093 A1 WO2012152093 A1 WO 2012152093A1 CN 2012070779 W CN2012070779 W CN 2012070779W WO 2012152093 A1 WO2012152093 A1 WO 2012152093A1
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WO
WIPO (PCT)
Prior art keywords
microwave oven
door
upper hinge
opening structure
hinge
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PCT/CN2012/070779
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English (en)
French (fr)
Inventor
李志刚
陈志华
李节
蒋程
Original Assignee
广东格兰仕微波炉电器制造有限公司
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Publication date
Application filed by 广东格兰仕微波炉电器制造有限公司 filed Critical 广东格兰仕微波炉电器制造有限公司
Priority to US14/117,243 priority Critical patent/US9521710B2/en
Priority to EP12782405.0A priority patent/EP2708820B1/en
Publication of WO2012152093A1 publication Critical patent/WO2012152093A1/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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • 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
    • F24C15/023—Mounting of doors, e.g. hinges, counterbalancing
    • 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
    • A47J36/06—Lids or covers for cooking-vessels
    • A47J36/12—Devices for holding lids in open position on the container
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1207—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis
    • E05F1/1215—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring parallel with the pivot axis with a canted-coil torsion spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/252—Type of friction
    • E05Y2201/254—Fluid or viscous friction
    • E05Y2201/256—Fluid or viscous friction with pistons or vanes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/264—Type of motion, e.g. braking linear
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens

Definitions

  • the present invention relates to a microwave oven, and more particularly to a door opening structure of a microwave oven.
  • the microwave ovens sold on the market have the following methods: a door hook spring with a button handle opening method, and a torsion spring controlled pull-down door opening method.
  • a microwave oven door opening mechanism which comprises a furnace body provided with a cooking cavity and a control computer board, and a furnace door and a furnace door are arranged at the opening of the cooking furnace cavity.
  • the switch body is provided with a switch bracket and a door hook.
  • the furnace body is provided with an electric control door opening mechanism for controlling the switch bracket to be separated from the door hook, and is electrically connected with the control computer board, and the control computer board is also electrically connected.
  • the above-mentioned microwave oven opening method can not meet the performance matching with high-end products, and therefore, further improvement is needed.
  • the object of the present invention is to provide a door opening structure of a microwave oven which is simple in design, reasonable in structure, and has a damping effect to overcome the deficiencies in the prior art.
  • the door opening structure of the microwave oven comprises an upper hinge fixed on the door body assembly and a lower hinge fixed on the furnace body of the microwave oven, and the door body assembly and the furnace body are hinged by upper and lower hinges, and the structural feature is an upper hinge and An elastic member is disposed between the lower hinges, and a damper is also connected to the upper hinge.
  • Both sides of the upper hinge are provided with a first joint and a lower hinge, and a middle portion of the upper hinge is provided with a second joint hinged to one end of the damper through a spring pin.
  • the other end of the damper is hinged to a connector fixed to the microwave oven.
  • the damper is a hydraulic damper.
  • the first connecting heads of the two sides of the lower hinge corresponding to the upper hinge are respectively provided with a third connecting head, and the middle corresponding damper is provided with a escaping port, and the fourth connecting head is disposed at both sides of the escaping port.
  • the two sides of the upper hinge and the lower hinge are respectively hinged through the third connecting head, the first connecting head and the fourth connecting head through the torsion spring pin.
  • the two torsion spring pins are respectively provided with torsion springs.
  • One ends of the two torsion springs are respectively inserted into and fixed to the first connecting head, and the other ends are respectively fixedly connected to the buckle grooves provided in the fourth connecting head.
  • the upper hinge is provided with a limiting wall that limits an opening angle thereof, and the lower hinge is provided with a limiting protrusion corresponding to the limiting groove.
  • a door hook is disposed on the door body assembly.
  • the door body assembly of the microwave oven of the present invention and the furnace cavity are hinged by upper and lower hinges, and a torsion spring is arranged between the upper hinge and the lower hinge, and a damper is connected to the upper hinge, and the door body of the microwave oven is connected.
  • a torsion spring is arranged between the upper hinge and the lower hinge, and a damper is connected to the upper hinge, and the door body of the microwave oven is connected.
  • FIG. 1 is a perspective view of an embodiment of the present invention.
  • Figure 2 is a further perspective view of an embodiment.
  • Figure 3 is a schematic exploded view of an embodiment.
  • Figure 4 is a schematic view showing the assembly structure of the upper and lower hinges.
  • 1 is the upper hinge
  • 1.1 is the limit wall
  • 1.6 is the first connector
  • 1.7 is the second connector
  • 2 is the lower hinge
  • 2.2 is the limit bump
  • 2.2 is the buckle groove
  • 2.5 is the first Three connectors, 2.6 for the escaping port, 2.7 for the fourth connector, 3 for the torsion spring, 4 for the torsion spring pin, 5 for the damper, 6 for the spring pin, 7 for the door assembly, and 7.1 for the door hook.
  • the door opening structure of the microwave oven includes an upper hinge 1 fixed to the door body assembly 7, and a lower hinge 2 fixed to the furnace body of the microwave oven, and the door body assembly 7 passes between the door body and the furnace body.
  • the lower hinge is hinged, and an elastic member is disposed between the upper hinge 1 and the lower hinge 2, and the upper hinge 1 is further connected with the damper 5.
  • Both sides of the upper hinge 1 are provided with a first joint head 1.6 hinged to the lower hinge 2, and a middle portion of the upper hinge 1 is provided with a second joint head 1.7 hinged to one end of the damper 5 via a spring pin 6.
  • the other end of the damper 5 is hinged to a connector 5.1 fixed to the microwave oven.
  • the damper 5 is a hydraulic damper.
  • the first connecting heads 1.6 corresponding to the upper hinges 1 on both sides of the lower hinge 2 are respectively provided with a third connecting head 2.5, the middle corresponding damper 5 is provided with a escaping port 2.6, and the venting port 2.6 is provided with a fourth connecting head 2.7 on both sides thereof.
  • the two sides of the upper hinge 1 and the lower hinge 2 are respectively hinged through the third connecting head 2.5, the first connecting head 1.6, and the fourth connecting head 2.7 through the torsion spring pin 4.
  • Torsion springs 3 are respectively disposed on the two torsion spring pins 4. One end of each of the torsion springs 3 is respectively inserted and fixed to the first connecting head 1.6, and the other end is fixedly connected to the buckle groove 2.2 provided in the fourth connecting head 2.7, respectively.
  • the upper hinge 1 is provided with a limiting wall 1.1 which limits its opening angle
  • the lower hinge 2 is provided with a limiting projection 2.1 corresponding to the limiting wall 1.1.
  • a door hook 7.1 is provided on the door assembly 7.
  • the interlocking mechanism located in the oven cavity (not shown) is interlocked with the door hook 7.1 of the door assembly 7, and the torsion spring 3 is in compression.
  • the damper 5 is in an unstressed state.
  • the interlocking mechanism (not shown) located in the oven cavity (not shown) is separated from the door hook 7.1 of the door assembly 7, and the door assembly 7 is The restoring force of the torsion spring 3 is opened, and at the same time, the damper 5 is pressed and cushioned, so that the door body assembly 7 has a damping effect when it is opened.
  • the utility model effectively prevents the interlocking mechanism (not shown) from being separated from the door hook 7.1, and the door body assembly 7 automatically opens rapidly under the restoring force of the torsion spring 3; or deliberately lowers by avoiding the rapid opening of the door body assembly 7
  • the restoring force of the torsion spring 3 prevents the door body assembly 7 from being automatically opened.
  • the door assembly 7 is limited by the limit projections 2.1 of the lower hinge 2 and the limiting wall 1.1 of the upper hinge 1 to limit the maximum opening angle thereof.
  • the torsion spring 3 When the door assembly 7 of the microwave oven is closed again, the torsion spring 3 is gradually compressed until the door hook 7.1 is re-coupled with the interlock mechanism (not shown), at which time the torsion spring 3 is in the maximum compression state, The torque received is the largest, the damper 5 is released again, again in an unstressed state, and the door assembly 7 is closed.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)

Description

微波炉的开门结构
技术领域
本发明涉及一种 微波炉，具体是一种微波炉的开门结构 。
背景技术
目前市面上销售的微波炉，其开门方式有：门钩弹簧配合按键拉手的开门方式、受扭簧控制的下拉门开门方式等。如本公司于2010年12月1日在中国专利文献号CN201662115U公开了一种微波炉开门机构，包括设有烹调炉腔和控制电脑板的炉体，烹调炉腔开口处设置有炉门，炉门设置有门钩，炉体内设有开关托架与门钩扣合，其炉体内设置有控制开关托架与门钩脱离的电控开门机构，与控制电脑板电连接，控制电脑板还电连接有给电控开门机构发出控制信号的身份识别装置。但是在科技日新月异的今天，上述微波炉的开门方式已不能满足与高端产品匹配的使用性能，因此，需要进一步改进。
发明内容
本发明的目的旨在提供一种设计简单、结构合理，具有阻尼效果的微波炉的开门结构，以克服现有技术中的不足之处。
按此目的设计的一种 微波炉的开门结构，包括固定在门体组件上的上铰链，和固定在微波炉的炉体上的下铰链，门体组件与炉体之间通过上、下铰链铰接，其结构特征是上铰链与下铰链之间设置有弹性件，上铰链还连接有阻尼器。
所述上铰链的两侧设置有第一连接头与下铰链铰接，上铰链的中部设置有第二连接头通过弹簧销与阻尼器的一端铰接。
所述阻尼器的另外一端与固定在微波炉上的连接件铰接。
所述阻尼器为液压阻尼器。
所述下铰链的两侧对应上铰链的第一连接头分别设置有第三连接头，中部对应阻尼器开有避让口，避让口两侧设置有第四连接头。
所述上铰链与下铰链的两侧分别通过扭簧销依次穿过第三连接头、第一连接头、第四连接头铰接。
所述两个扭簧销上分别设置有扭簧。
所述两个扭簧的一端分别穿进并固定在第一连接头，另外一端分别与设置在第四连接头的扣槽固定连接。
所述上铰链设置有限制其开启角度的限位壁，下铰链对应限位凹槽设置有限位凸块。
所述门体组件上设置有门钩。
通过采用上述技术方案，本发明微波炉的门体组件与炉腔之间通过上、下铰链铰接，上铰链与下铰链之间设置有扭簧，上铰链上还连接有阻尼器，微波炉的门体组件在扭簧力和阻尼共同作用下，可平稳打开、安全可靠，同时其结构简单合理，应用范围范围广，生产成本低，装配简便。
附图说明
图1为本发明一实施例的立体图。
图2为一实施例的又一立体图。
图3为一实施例的分解结构示意图。
图4为上、下铰链的装配结构示意图。
图中：1为上铰链， 1.1 为限位壁，1.6为第一连接头，1.7为第二连接头， 2 为下铰链，2 .1 为限位凸块，2.2为扣槽，2.5为第三连接头，2.6为避让口，2.7为第四连接头， 3 为扭簧，4为扭簧销，5为阻尼器，6为弹簧销，7为门体组件，7.1为门钩。
具体实施方式
下面结合附图及实施例对本发明作进一步描述。
参见图1-图4，本微波炉的开门结构，包括固定在门体组件7上的上铰链1，和固定在微波炉的炉体上的下铰链2，门体组件7与炉体之间通过上、下铰链铰接，其上铰链1与下铰链2之间设置有弹性件，上铰链1还连接有阻尼器5。
上铰链1的两侧均设置有第一连接头1.6与下铰链2铰接，上铰链1的中部设置有第二连接头1.7通过弹簧销6与阻尼器5的一端铰接。阻尼器5的另外一端与固定在微波炉上的连接件5.1铰接。其中，阻尼器5为液压阻尼器。
下铰链2的两侧对应上铰链1的第一连接头1.6分别设置有第三连接头2.5，中部对应阻尼器5开有避让口2.6，避让口2.6两侧设置有第四连接头2.7。上铰链1与下铰链2的两侧分别通过扭簧销4依次穿过第三连接头2.5、第一连接头1.6、第四连接头2.7铰接。 两个扭簧销4上分别设置有扭簧3。两个扭簧3的一端分别穿进并固定在第一连接头1.6，另外一端分别与设置在第四连接头2.7的扣槽2.2固定连接。
上铰链1设置有限制其开启角度的限位壁1.1，下铰链2对应限位壁1.1设置有限位凸块2.1。门体组件7上设置有门钩7.1。
当微波炉的门体组件7关闭时，位于微波炉炉腔（图中未标出）上的联锁机构（图中未标出）与门体组件7的门钩7.1相扣，扭簧3处于压缩状态，阻尼器5处于不受力状态。
当微波炉的门体组件7打开时，位于微波炉炉腔（图中未标出）上的联锁机构（图中未标出）与门体组件7的门钩7.1相分离，门体组件7在扭簧3的回复力作用下打开，同时，阻尼器5受压，并起缓冲作用，使门体组件7打开时具有阻尼效果。其有效避免联锁机构（图中未标出）与门钩7.1分离后，门体组件7在扭簧3的回复力作用下自动急速打开；或者因避免门体组件7急速打开而故意调低扭簧3的回复力，使门体组件7无法自动打开。其中，门体组件7由于下铰链2的限位凸块2.1及上铰链1的限位壁1.1共同作用下，限制其最大开启角度。
当微波炉的门体组件7重新关闭时，扭簧3逐渐被压缩，一直到门钩7.1与联锁机构（图中未标出）重新相扣，此时，扭簧3处于最大压缩状态，其受到的扭力最大，阻尼器5重新释放，再次处于不受力状态，门体组件7关闭。

Claims (10)

  1. 一种微波炉的开门结构，包括固定在门体组件（7）上的上铰链（1），和固定在微波炉的炉体上的下铰链（2），门体组件（7）与炉体之间通过上、下铰链铰接，其特征是上铰链（1）与下铰链（2）之间设置有弹性件，上铰链（1）还连接有阻尼器（5）。
  2. 根据权利要求1所述微波炉的开门结构，其特征是所述上铰链（1）的两侧设置有第一连接头（1.6）与下铰链（2）铰接，上铰链（1）的中部设置有第二连接头（1.7）通过弹簧销（6）与阻尼器（5）的一端铰接。
  3. 根据权利要求2所述微波炉的开门结构，其特征是所述阻尼器（5）的另外一端与固定在微波炉上的连接件（5.1）铰接。
  4. 根据权利要求3所述微波炉的开门结构，其特征是所述阻尼器（5）为液压阻尼器。
  5. 根据权利要求1-4任一所述微波炉的开门结构，其特征是所述下铰链（2）的两侧对应上铰链（1）的第一连接头（1.6）分别设置有第三连接头（2.5），中部对应阻尼器（5）开有避让口（2.6），避让口（2.6）两侧设置有第四连接头（2.7）。
  6. 根据权利要求5所述微波炉的开门结构，其特征是所述上铰链（1）与下铰链（2）的两侧分别通过扭簧销（4）依次穿过第三连接头（2.5）、第一连接头（1.6）、第四连接头（2.7）铰接。
  7. 根据权利要求6所述微波炉的开门结构，其特征是所述两个扭簧销（4）上分别设置有扭簧（3）。
  8. 根据权利要求7所述微波炉的开门结构，其特征是所述两个扭簧（3）的一端分别穿进并固定在第一连接头（1.6）上，另外一端分别与设置在第四连接头（2.7）的扣槽（2.2）固定连接。
  9. 根据权利要求8所述微波炉的开门结构，其特征是所述上铰链（1）设置有限制炉门开启角度的限位壁（1.1），下铰链（2）对应限位壁（1.1）设置有限位凸块（2.1）。当门开启过程中，相对于下铰链，上铰链是一个转动，当转动到一定角度，下铰链的限位凸块（2.1）会碰到上铰链的限位壁（1.1），从而阻碍门的继续转动，从而达到限定开门角度的目的。
  10. 根据权利要求1所述微波炉的开门结构，其特征是所述门体组件（7）上设置有门钩（7.1）。
PCT/CN2012/070779 2011-05-12 2012-01-30 微波炉的开门结构 WO2012152093A1 (zh)

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