CN111023181A - Cooking appliance and door body thereof - Google Patents

Cooking appliance and door body thereof Download PDF

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Publication number
CN111023181A
CN111023181A CN201911058682.0A CN201911058682A CN111023181A CN 111023181 A CN111023181 A CN 111023181A CN 201911058682 A CN201911058682 A CN 201911058682A CN 111023181 A CN111023181 A CN 111023181A
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CN
China
Prior art keywords
door
door frame
hook
cooking appliance
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911058682.0A
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Chinese (zh)
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CN111023181B (en
Inventor
李芳明
廖波
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Guangdong Galanz Enterprises Co Ltd
Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Original Assignee
Guangdong Galanz Enterprises Co Ltd
Guangdong Galanz Microwave Electric Manufacturing Co Ltd
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Application filed by Guangdong Galanz Enterprises Co Ltd, Guangdong Galanz Microwave Electric Manufacturing Co Ltd filed Critical Guangdong Galanz Enterprises Co Ltd
Priority to CN201911058682.0A priority Critical patent/CN111023181B/en
Publication of CN111023181A publication Critical patent/CN111023181A/en
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Publication of CN111023181B publication Critical patent/CN111023181B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/02Doors specially adapted for stoves or ranges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/64Heating using microwaves

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

Abstract

The invention relates to a cooking appliance and a door body thereof. The limiting part is arranged on the door frame or the door hook component. In the door opening process, when the door frame is opened to a preset position, the limiting part and the door framework are mutually abutted and drive the door framework to be synchronously opened. When the door is opened, the door frame is slightly opened due to the movable connection of the door frame and the door frame, the door frame is not opened at the same time, and the door frame is still blocked at the opening part of the box body to prevent the microwave leakage. In addition, the door frame drives the corresponding action of door hook subassembly when opening slightly, and door hook subassembly and micro-gap switch phase separation break off the microwave circuit, and after the microwave circuit disconnection, the door frame continues to open the in-process, and locating part and door skeleton are contradicted each other and are driven the synchronous opening of door skeleton. Therefore, the microwave leakage prevention device can be beneficial to preventing the microwave leakage at the moment of opening the door so as to improve the safety performance.

Description

Cooking appliance and door body thereof
Technical Field
The invention relates to the technical field of electric appliances, in particular to a cooking electric appliance and a door body thereof.
Background
A cooking appliance, particularly a cooking appliance with a microwave heating function, such as a microwave oven with a simple microwave heating function, a microwave barbecue machine with a heating tube barbecue function, a micro-steamer with a steam heating function, or a micro-steamer and micro-toaster all-in-one machine, will be described below with reference to the microwave oven as an example. The microwave oven heats food by electrifying a magnetron to generate high-frequency microwaves, and if the high-frequency microwaves leak out, the high-frequency microwaves can hurt human bodies, so that the microwaves are prevented from leaking out. In a conventional microwave oven, a plurality of micro switches are usually disposed at a position of a cabinet close to a door body, and a door hook is disposed on the door body corresponding to the position of the microwave switch. When the door body is closed, the door hook is pulled down through the tension spring, so that the head of the door hook presses down the elastic switch contact of the microwave switch to the tightest state, and a common conductive terminal in the microswitch is electrically connected with a normally closed conductive terminal, so that a circuit is communicated to electrify a magnetron for generating microwaves; when the door body is opened, the door hook is separated from the elastic switch contact of the microswitch, and the switch contact is bounced through the spring in the microswitch, so that the common conductive terminal in the microswitch is electrically connected with the normally open conductive terminal, the circuit is disconnected, the power supply to the magnetron is stopped, the generation of microwaves is stopped, and the human body is protected. However, limited by the existing microswitch structure, the existing microwave oven still works under power-on at the moment when the door body is opened, and microwave leakage to the outside of the door body can be generated at the moment, so that the microwave oven is harmful to the human body and has lower safety performance.
Disclosure of Invention
Accordingly, there is a need to overcome the drawbacks of the prior art and to provide an electric cooking appliance and a door thereof, which can prevent microwave from leaking at the moment of opening the door, thereby improving safety.
The technical scheme is as follows: a door body of an electric cooking appliance, comprising: the microwave oven comprises a door frame and a door framework for preventing microwave from leaking, wherein the door framework is arranged between the door frame and an opening part of a box body of the cooking appliance, and the door frame is movably connected with the door framework; the door hook component is arranged on the door frame and comprises a door hook, and the door hook is inserted into the box body and is in linkage fit with a microswitch in the box body; the limiting piece is arranged on the door frame or the door hook component; in the door opening process, when the door frame is opened to a preset position, the limiting part and the door framework are mutually abutted and drive the door framework to be synchronously opened.
When the door of the cooking appliance is opened, the door frame is slightly opened due to the movable connection of the door frame and the door frame, the door frame is not opened simultaneously, and the door frame is still blocked at the opening part of the box body to prevent microwave leakage. In addition, the door frame drives the corresponding action of door hook subassembly when opening slightly, and door hook subassembly and micro-gap switch phase separation break off the microwave circuit, and after the microwave circuit disconnection, the door frame continues to open the in-process, and locating part and door skeleton are contradicted each other and are driven the synchronous opening of door skeleton. Therefore, the microwave leakage prevention device can be beneficial to preventing the microwave leakage at the moment of opening the door so as to improve the safety performance.
In one embodiment, the door frame is rotatably connected with the door frame through a rotating assembly; the limiting part is a limiting hook.
In one embodiment, the door body of the cooking appliance further comprises a first elastic piece, and the first elastic piece is used for driving the door frame to be attached to the door frame.
In one of them embodiment, cooking device's door body still include be used for with the fixed connecting rod that links to each other of box, rotating assembly with the connecting rod is rotatable to be linked to each other, first elastic component is the torsional spring, the torsional spring cover is located in rotating assembly's the pivot, the one end of torsional spring with the door frame links to each other, the other end of torsional spring with the connecting rod links to each other, the torsional spring with the tip position that the door frame links to each other for the pivot is kept away from more in the end that opens and shuts of door frame.
In one embodiment, the rotating component includes a first fixing seat, a second fixing seat and a rotating shaft, the first fixing seat is mounted on the door frame, the second fixing seat is mounted on the door frame, one end of the rotating shaft is rotatably mounted on the first fixing seat, and the other end of the rotating shaft is rotatably mounted on the second fixing seat.
In one embodiment, the door body of the cooking appliance further comprises a door cover plate, the door cover plate is arranged on the side face, facing the box body, of the door frame, a through hole corresponding to the position of the door hook is formed in the door cover plate, and the door hook can penetrate through the through hole and can move in the through hole.
In one embodiment, a buffer is arranged between the door frame and the door framework; and/or, a buffer part is arranged between the limiting part and the door frame.
In one embodiment, the door frame is provided with a frame edge along the circumferential edge of the door frame, the frame edge is arranged around the periphery of the door frame, and the door hook component is arranged between the frame edge and the edge of the door frame.
In one embodiment, the door hook assembly further comprises a support arranged on the door frame, and a second elastic piece; the support comprises two clamping arms which are oppositely arranged, a clamping groove is formed by the two clamping arms, the door hook comprises a hook part which is in linkage fit with the microswitch and a shaft part which is connected with the hook part, the shaft part is rotatably arranged in the clamping groove, and the door hook is connected with the support through the second elastic piece;
the support also comprises a top pressing edge connected with the two clamping arms; the door hook further comprises a jacking portion connected with the hook portion, the jacking portion is abutted to the jacking edge, the second elastic piece is a tension spring, one end of the tension spring is connected with the jacking portion, and the other end of the tension spring is connected with the jacking edge;
the top pressing edge is provided with a clamping groove, the top pressing part is provided with a hook hole, one hook body of the tension spring is hooked in the hook hole, and the other hook body of the tension spring is hooked in the clamping groove; the support also comprises an installation plate connected with the top pressing edge, and the installation plate is arranged on the door frame; the hook part, the jacking part and the shaft part are integrally T-shaped.
The utility model provides a cooking appliance, includes cooking appliance's the door body, still includes the box, be equipped with microwave generator in the box, cooking appliance's the door body rotationally set up in the opening of box, all be equipped with micro-gap switch on the lateral wall of box, door hook and micro-gap switch linkage cooperation.
When the door of the cooking appliance is opened, the door frame is slightly opened due to the movable connection of the door frame and the door frame, the door frame is not opened at the same time, and the door frame is still blocked at the opening part of the box body to prevent the microwave leakage. In addition, the door frame drives the corresponding action of door hook subassembly when opening slightly, and door hook subassembly and micro-gap switch phase separation break off the microwave circuit, and after the microwave circuit disconnection, the door frame continues to open the in-process, and locating part and door skeleton are contradicted each other and are driven the synchronous opening of door skeleton. Therefore, the microwave leakage prevention device can be beneficial to preventing the microwave leakage at the moment of opening the door so as to improve the safety performance.
Drawings
Fig. 1 is a schematic structural diagram of an electric cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic structural view of the cooking appliance according to an embodiment of the invention when a door body is opened;
fig. 3 is a schematic view of a door of the cooking appliance according to an embodiment of the invention;
FIG. 4 is an enlarged schematic view at A of FIG. 3;
fig. 5 is a schematic structural view of a door frame of a door body of an electric cooking appliance according to an embodiment of the present invention when the door frame is slightly opened with respect to a door frame;
FIG. 6 is an enlarged schematic view at B of FIG. 5;
fig. 7 is a schematic structural view of a door body of the cooking appliance according to an embodiment of the present invention, with a door cover removed;
FIG. 8 is an enlarged schematic view of FIG. 7 at C;
fig. 9 is a schematic structural diagram of a door hook of an electric cooking appliance contacting with a micro switch according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a cooking appliance according to an embodiment of the present invention when a door hook is separated from a micro switch;
fig. 11 is an exploded schematic view of a door of the electric cooking appliance according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a door of the cooking appliance according to an embodiment of the invention;
FIG. 13 is an enlarged schematic view of FIG. 12 at D;
fig. 14 is a schematic structural diagram of a door of the cooking appliance according to an embodiment of the invention;
FIG. 15 is a schematic structural diagram of a rotating assembly according to an embodiment of the present invention;
FIG. 16 is an exploded view of a rotating assembly according to an embodiment of the present invention;
FIG. 17 is a schematic view of a door hook assembly according to an embodiment of the present invention;
fig. 18 is an exploded view of a door hook assembly according to an embodiment of the present invention.
Reference numerals:
10. a door body; 11. a door frame; 111. a jacking portion; 112. a frame edge; 12. a door frame; 121. a recess; 13. a door hook assembly; 131. a door hook; 1311. a hook portion; 1312. a shaft portion; 1313. a contact part; 1314. a hook arm; 132. a support; 1321. clamping arms; 1322. a clamping groove; 1323. pressing the edges; 1324. mounting a plate; 133. a second elastic member; 134. a rotating member; 14. a limiting member; 15. a rotating assembly; 151. a first fixed seat; 152. a second fixed seat; 153. a rotating shaft; 154. a shaft sleeve; 16. a first elastic member; 161. one end; 162. the other end; 17. a connecting rod; 18. a door cover plate; 181. a via hole; 19. a buffer member; 20. a box body; 21. an opening part; 30. a microswitch; 40. a handle.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
Generally, the common conductive terminal is indirectly electrically connected with the normally closed conductive terminal or the normally open conductive terminal through the elastic sheet, and the elastic sheet suddenly jumps from one terminal to the other terminal when the button is displaced to a certain amount in the up-down direction, in the process of opening the door, the door body 10 of the cooking appliance is opened a little, but the elastic sheet is not completely switched from one terminal to the other terminal, the circuit is still in a conducting state during the period, and the magnetron still emits microwaves. Therefore, in the process of opening the door 10 of the cooking appliance, the spring piece does not jump from one terminal to the other terminal, the cooking appliance is still electrified to work, and microwave is generated and leaked to the outside of the door 10 of the cooking appliance, so that harm is caused to a human body.
In one embodiment, referring to fig. 1 to 11, a door 10 of a cooking appliance includes a door frame 11, a door frame 12 for preventing microwaves from leaking, a door hook assembly 13, and a stopper 14. The door frame 12 is arranged between the door frame 11 and an opening 21 of a box 20 of the cooking appliance, and the door frame 11 is movably connected with the door frame 12. The door hook assembly 13 is disposed on the door frame 11, and the door hook assembly 13 includes a door hook 131. The door hook 131 is used for being inserted into the box body 20 and is in linkage fit with the micro switch 30 in the box body 20. The limiting member 14 is disposed on the door frame 11 or the door hook assembly 13. In the process of opening the door, when the door frame 11 is opened to a preset position, the limiting member 14 and the door frame 12 are abutted against each other and drive the door frame 12 to be opened synchronously.
When the door 10 of the cooking appliance is opened, because the door frame 11 is movably connected to the door frame 12, the door frame 11 is slightly opened (see fig. 4 and 6 for comparison), the door frame 12 is not opened at the same time, and the door frame 12 is still sealed at the opening 21 of the box 20 to prevent the microwave leakage. In addition, when the door frame 11 is slightly opened, the door hook assembly 13 is driven to correspondingly act, the door hook assembly 13 is separated from the microswitch 30 to break the microwave circuit, and after the microwave circuit is broken, the limiting piece 14 is abutted against the door frame 12 and drives the door frame 12 to be opened synchronously in the process that the door frame 11 is continuously opened. Therefore, the microwave leakage prevention device can be beneficial to preventing the microwave leakage at the moment of opening the door so as to improve the safety performance.
It should be noted that the movable connection can be a rotary movable connection, a translational movable connection, or other movable connections. Specifically, in the door 10 rotatably provided in the casing 20, the door frame 11 is rotatably connected to the door frame 12. For the door body 10 which is arranged on the box body 20 in a drawing way, the door frame 11 is movably connected with the door framework 12 in a translation way. The present embodiment will be described in detail by taking the door 10 rotatably installed on the cabinet 20 as an example.
Further, please refer to fig. 3-6 and 12-16, wherein the movable connection between the doorframe 11 and the doorframe 12 illustrated in fig. 3-6 and 12-16 is a rotary movable connection. Wherein, the door frame 11 is rotatably connected with the door frame 12 through a rotating assembly 15. Particularly, the limiting member 14 is a limiting hook, and after the door frame 11 is opened slightly, the limiting hook can hook the door frame 12 to perform a good limiting effect on the door frame 12, so that the door frame 12 and the door frame 11 are rotated together to be opened.
It can be understood that, when the door 10 is opened in a manner of being turned upside down, the rotating assembly 15 is disposed at the bottom of the door frame 12; when the door 10 is opened in a left-right turning manner, the rotating assembly 15 is disposed at a side portion of the door frame 12.
In one embodiment, referring to fig. 3-6 and 12-16, the door 10 of the cooking appliance further includes a first elastic member 16. The first elastic element 16 is used for driving the door frame 11 to be attached to the door frame 12. In this way, since the door frame 11 is rotatable with respect to the door frame 12, the first elastic member 16 can constantly maintain the door frame 11 with a biasing force tending toward the door frame 12 and the cabinet 20, so that the door frame 11 will not fall down toward the front of the cabinet 20 after the door 10 is closed, and the door frame 11 will not shake freely with respect to the door frame 12 during the door opening process.
Further, referring to fig. 3-6 and 12-16, the door 10 of the cooking appliance further includes a connecting rod 17 fixedly connected to the box 20. The rotating assembly 15 with the connecting rod 17 is rotatable to be linked to each other, first elastic component 16 is the torsional spring, the torsional spring cover is located in the pivot 153 of rotating assembly 15, the one end 161 of torsional spring with the door frame 11 links to each other, the other end 162 of torsional spring with the connecting rod 17 links to each other, the torsional spring with the tip position that the door frame 11 links to each other for the pivot 153 is kept away from more in the end that opens and shuts of door frame 11. Therefore, when the door body 10 is rotated and opened, the end part of the torsion spring abuts against the rotating connecting end of the door frame 11, so that the door body 10 rotates in the opposite direction, and the door frame 11 is driven to be attached to the door frame 12. In addition, when the opening and closing end of the door 10 is opened at, for example, not more than 45 degrees, the door 10 can be closed at the opening portion 21 of the cabinet 20 by the restoring force of the torsion spring.
It should be noted that the doorframe 11 is rotatably connected to the doorframe 12 by two rotating assemblies 15 which are spaced apart from each other. Accordingly, there are two links 17. The two rotating assemblies 15 are arranged in one-to-one correspondence with the two connecting rods 17. In this way, the rotation effect between the door frame 11 and the door frame 12 is more stable, and the rotation effect between the door 10 and the cabinet 20 is also more stable.
It should be noted that, for the door 10 rotatably disposed on the cabinet 20, the door frame 11 has a rotation connection end and an open/close end, the rotation connection end of the door frame 11 refers to the end portion of the rotating assembly 15, the open/close end refers to the end of the door frame 11 opposite to the end portion of the rotating assembly 15 of the door frame 11, and is also the portion where the door handle 40 is usually located.
Further, referring to fig. 3-6 and 12-16, the rotating assembly 15 includes a first fixing seat 151, a second fixing seat 152 and a rotating shaft 153. The first fixing seat 151 is installed on the door frame 11, and the second fixing seat 152 is installed on the door frame 12. One end of the rotating shaft 153 is rotatably mounted on the first fixing seat 151, and the rotating shaft 153 is rotatably mounted on the second fixing seat 152. Thus, the doorframe 11 is rotatably connected with respect to the doorframe 12.
Specifically, referring to fig. 13, the door frame 11 has a pressing portion 111 corresponding to one end 161 of the torsion spring, and the one end 161 of the torsion spring presses against the pressing portion 111. Thus, when the door 10 is rotated and opened, one end 161 of the torsion spring abuts against the abutting portion 111, so that the door 10 rotates in the opposite direction, which is beneficial to driving the door frame 11 to abut against the door frame 12. The door frame 11 can constantly keep the inclined force which inclines towards the door frame 12 and the box body 20, so that the door frame 11 cannot be loosened towards the front side of the box body 20 after the door body 10 is closed, and the door frame 11 cannot shake randomly relative to the door frame 12 in the door opening process.
Further, the other end of the rotating shaft 153 is rotatably connected to the connecting rod 17.
Further, referring to fig. 15 and 16, in order to facilitate the rotation of the rotating shaft 153 inside the torsion spring, the rotating assembly 15 further includes a shaft sleeve 154 disposed outside the rotating shaft 153, and the shaft sleeve 154 is sleeved inside the torsion spring.
In an embodiment, referring to fig. 5 and 6 again, the door 10 of the cooking appliance further includes a door cover 18. The door cover plate 18 is disposed on the side surface of the door frame 12 facing the box body 20, and a through hole 181 corresponding to the position of the door hook 131 is disposed on the door cover plate 18. The door hook 131 can pass through the through hole 181 and can move in the through hole 181.
Specifically, the through hole 181 is, for example, a strip-shaped hole, when the door 10 is closed at the opening 21 of the compartment 20, the hook arm 1314 of the door hook 131 is located at the middle of the strip-shaped hole, the hook arm 1314 of the door hook 131 does not abut against the hole wall at the end of the strip-shaped hole, that is, there is a certain movement margin between the hook arm 1314 of the door hook 131 and the hole wall at the end of the strip-shaped hole, when the door is opened, the door frame 11 rotates by a certain angle (for example, 1 ° to 15 °) with respect to the door frame 12, the hook arm 1314 of the door hook 131 can freely move along the strip-shaped hole, and the hook arm 1314 of the door hook 131 has a certain vertical movement margin, so that it does not affect the opening of the door frame. Of course, the shape of the via 181 may be other shapes, such as an oval, a rectangle, a circle, or the like.
In one embodiment, referring to fig. 7, 8 and 14, a buffer 19 is disposed between the door frame 11 and the door frame 12. Furthermore, optionally, a buffer 19 is disposed between the limiting member 14 and the door frame 12. The buffer 19 is specifically, for example, an elastic member or a soft member. Thus, the cushion 19 prevents the door frame 11 from being rigidly hit against the door frame 12 and damaged when the door is closed.
In one embodiment, referring to fig. 5 to 8, the doorframe 11 is provided with a frame rim 112 along a circumferential edge of the doorframe 11, the frame rim 112 is wound around the periphery of the doorframe 12, and the door hook assembly 13 is disposed between the frame rim 112 and the edge of the doorframe 12. Therefore, the whole structure is compact in layout and small in size.
Further, referring to fig. 11, 17 and 18, the door hook assembly 13 further includes a support 132 disposed on the door frame 11, and a second elastic member 133. The support 132 includes two clamping arms 1321 arranged oppositely, the two clamping arms 1321 form a clamping slot 1322, the door hook 131 includes a hook portion 1311 coupled to the micro switch 30 and a shaft portion 1312 coupled to the hook portion 1311, the shaft portion 1312 is rotatably disposed in the clamping slot 1322, and the door hook 131 is coupled to the support 132 through the second elastic member 133.
Further, referring to fig. 11, 17 and 18, the support 132 further includes a pressing edge 1323 connected to the two clamping arms 1321. The door hook 131 further comprises a contact part 1313 connected with the hook part 1311, the contact part 1313 is in contact with the top pressing edge 1323, the second elastic part 133 is a tension spring, one end of the tension spring is connected with the contact part 1313, and the other end of the tension spring is connected with the top pressing edge 1323.
Further, referring to fig. 11, 17 and 18, the pressing edge 1323 is provided with a locking groove, the abutting portion 1313 is provided with a hook hole, one hook of the tension springs is hooked in the hook hole, and the other hook of the tension springs is hooked in the locking groove. In addition, the support 132 further includes a mounting plate 1324 connected to the top pressing edge 1323, and the mounting plate 1324 is installed on the door frame 11. Specifically, the hook 1311, the push-piece 111, the shaft 1312, and the hook 1314 are formed in a T shape as a whole.
Further, referring to fig. 11, 17 and 18, the door hook assembly 13 further includes a rotating member 134. The clamping arm 1321 is provided with a first shaft hole, the shaft portion 1312 is provided with a second shaft hole corresponding to the first shaft hole, and the rotating member 134 is inserted into the first shaft hole and the second shaft hole to rotatably arrange the shaft portion 1312 on the clamping arm 1321.
Further, referring to fig. 11, 17 and 18, the limiting member 14 is disposed on the top pressing edge 1323. Specifically, the limiting member 14, the clip arm 1321, the abutting edge 1323, and the mounting plate 1324 are integrated.
Further, referring to fig. 8, 17 and 18, a concave portion 121 adapted to the limiting member 14 is disposed on a side portion of the door frame 12, and the limiting member 14 is matched with a bottom wall of the concave portion 121. Therefore, the space is reasonably utilized, the overall layout is compact, and the structure volume is small.
In an embodiment, referring to fig. 1 to 11, a cooking appliance includes the door 10 of the cooking appliance according to any embodiment, and further includes a box 20, a microwave generator is disposed in the box 20, the door 10 of the cooking appliance is rotatably disposed at an opening 21 of the box 20, a micro switch 30 is disposed on a side wall of the box 20, and the door hook 131 is in linkage fit with the micro switch 30.
In the above-mentioned cooking appliance, when the door is opened, the door frame 11 is slightly opened because the door frame 11 is movably connected to the door frame 12, the door frame 12 is not simultaneously opened, and the door frame 12 is still sealed at the opening 21 of the cabinet 20 to prevent the microwave leakage. In addition, when the door frame 11 is slightly opened, the door hook assembly 13 is driven to correspondingly act, the door hook assembly 13 is separated from the microswitch 30 to break the microwave circuit, and after the microwave circuit is broken, the limiting piece 14 is abutted against the door frame 12 and drives the door frame 12 to be opened synchronously in the process that the door frame 11 is continuously opened. Therefore, the microwave leakage prevention device can be beneficial to preventing the microwave leakage at the moment of opening the door so as to improve the safety performance.
Specifically, two door hook assemblies 13 are provided, and the two door hook assemblies 13 are provided on the door frame 11 with a space therebetween. Two opposite side walls of the box body 20 are provided with micro switches 30, and the two door hooks 131 are respectively in linkage fit with the two micro switches 30.
In one implementation, the cooking appliance further comprises a handle 40 disposed on the door frame 11. Thus, the door 10 can be opened and closed conveniently by the handle 40.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A door body of cooking appliance, characterized by comprising:
the microwave oven comprises a door frame and a door framework for preventing microwave from leaking, wherein the door framework is arranged between the door frame and an opening part of a box body of the cooking appliance, and the door frame is movably connected with the door framework;
the door hook component is arranged on the door frame and comprises a door hook, and the door hook is inserted into the box body and is in linkage fit with a microswitch in the box body;
the limiting piece is arranged on the door frame or the door hook component; in the door opening process, when the door frame is opened to a preset position, the limiting part and the door framework are mutually abutted and drive the door framework to be synchronously opened.
2. The door body of the cooking appliance according to claim 1, wherein the door frame is rotatably connected with the door frame through a rotating assembly; the limiting part is a limiting hook.
3. The door body of the cooking appliance according to claim 2, further comprising a first elastic member for urging the door frame against the door frame.
4. The door body of the cooking appliance according to claim 3, further comprising a connecting rod fixedly connected with the box body, wherein the rotating assembly is rotatably connected with the connecting rod, the first elastic member is a torsion spring, the torsion spring is sleeved on a rotating shaft of the rotating assembly, one end of the torsion spring is connected with the door frame, the other end of the torsion spring is connected with the connecting rod, and the end part of the torsion spring connected with the door frame is far away from the opening and closing end of the door frame relative to the rotating shaft.
5. The door body of the electric cooking appliance according to claim 2, wherein the rotating assembly includes a first fixing seat, a second fixing seat and a rotating shaft, the first fixing seat is mounted on the door frame, the second fixing seat is mounted on the door frame, one end of the rotating shaft is rotatably mounted on the first fixing seat, and the other end of the rotating shaft is rotatably mounted on the second fixing seat.
6. The door body of the cooking appliance according to claim 2, further comprising a door cover plate, wherein the door cover plate is arranged on the side surface of the door frame facing the box body, a through hole corresponding to the door hook is formed in the door cover plate, and the door hook can penetrate through the through hole and can move in the through hole.
7. The door body of the cooking appliance according to claim 1, wherein a buffer member is arranged between the door frame and the door frame; and/or, a buffer part is arranged between the limiting part and the door frame.
8. The door body of the cooking appliance according to claim 1, wherein the door frame is provided with a frame edge along a circumferential edge of the door frame, the frame edge is wound around the periphery of the door frame, and the door hook assembly is arranged between the frame edge and the edge of the door frame.
9. The door body of the cooking appliance according to any one of claims 1 to 8, wherein the door hook assembly further comprises a support arranged on the door frame, and a second elastic member; the support comprises two clamping arms which are oppositely arranged, a clamping groove is formed by the two clamping arms, the door hook comprises a hook part which is in linkage fit with the microswitch and a shaft part which is connected with the hook part, the shaft part is rotatably arranged in the clamping groove, and the door hook is connected with the support through the second elastic piece;
the support also comprises a top pressing edge connected with the two clamping arms; the door hook further comprises a jacking portion connected with the hook portion, the jacking portion is abutted to the jacking edge, the second elastic piece is a tension spring, one end of the tension spring is connected with the jacking portion, and the other end of the tension spring is connected with the jacking edge;
the top pressing edge is provided with a clamping groove, the top pressing part is provided with a hook hole, one hook body of the tension spring is hooked in the hook hole, and the other hook body of the tension spring is hooked in the clamping groove; the support also comprises an installation plate connected with the top pressing edge, and the installation plate is arranged on the door frame; the hook part, the jacking part and the shaft part are integrally T-shaped.
10. The cooking appliance is characterized by comprising the door body of the cooking appliance according to any one of claims 1 to 9 and a box body, wherein a microwave generator is arranged in the box body, the door body of the cooking appliance is rotatably arranged at the opening part of the box body, micro switches are arranged on the side walls of the box body, and the door hook is in linkage fit with the micro switches.
CN201911058682.0A 2019-11-01 2019-11-01 Cooking appliance and door body thereof Active CN111023181B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980516A (en) * 2020-07-14 2020-11-24 广东美的厨房电器制造有限公司 Switching door subassembly and cooking device
WO2023232091A1 (en) * 2022-06-01 2023-12-07 广东美的厨房电器制造有限公司 Door assembly and cooking utensil

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CN1218166A (en) * 1997-11-15 1999-06-02 Lg电子株式会社 Opening and closing apparatus for door of microwave oven with lighting lamps
CN204060197U (en) * 2014-08-22 2014-12-31 宁波方太厨具有限公司 A kind of gate interlock structure
CN204084509U (en) * 2014-06-21 2015-01-07 广东格兰仕微波炉电器制造有限公司 The door body structure of micro-wave oven
CN104812981A (en) * 2012-10-12 2015-07-29 美的集团股份有限公司 Door body interlock switch and microwave cooking device utilizing the door body interlock switch
CN104879799A (en) * 2015-05-26 2015-09-02 宁波方太厨具有限公司 Safe door lock mechanism for preventing steam and microwave from leaking

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1218166A (en) * 1997-11-15 1999-06-02 Lg电子株式会社 Opening and closing apparatus for door of microwave oven with lighting lamps
CN104812981A (en) * 2012-10-12 2015-07-29 美的集团股份有限公司 Door body interlock switch and microwave cooking device utilizing the door body interlock switch
CN204084509U (en) * 2014-06-21 2015-01-07 广东格兰仕微波炉电器制造有限公司 The door body structure of micro-wave oven
CN204060197U (en) * 2014-08-22 2014-12-31 宁波方太厨具有限公司 A kind of gate interlock structure
CN104879799A (en) * 2015-05-26 2015-09-02 宁波方太厨具有限公司 Safe door lock mechanism for preventing steam and microwave from leaking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111980516A (en) * 2020-07-14 2020-11-24 广东美的厨房电器制造有限公司 Switching door subassembly and cooking device
CN111980516B (en) * 2020-07-14 2022-03-22 广东美的厨房电器制造有限公司 Switching door subassembly and cooking device
WO2023232091A1 (en) * 2022-06-01 2023-12-07 广东美的厨房电器制造有限公司 Door assembly and cooking utensil

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