CN211119541U

CN211119541U - Door opening assembly of microwave oven

Info

Publication number: CN211119541U
Application number: CN201921780386.7U
Authority: CN
Inventors: 刘海长; 崔超华
Original assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Current assignee: Guangdong Galanz Enterprises Co Ltd; Guangdong Galanz Microwave Electric Manufacturing Co Ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-28
Anticipated expiration: 2029-10-21

Abstract

A door opening assembly of a microwave oven comprises an oven door, a box body, a switch support arranged on the box body, a door hook arranged on the oven door and a rotating part arranged on the box body, wherein the bottom of the door hook is provided with a working surface which is an arc surface and/or an inclined surface, and one side of the rotating part is provided with a jacking part; a limit block is arranged on the switch bracket; when the furnace door is closed, the door hook acts on the limiting block; in the process of opening the furnace door, when the bottom of the door hook just breaks away from the limiting block, the jacking part acts on the working surface, so that the jacking part generates thrust in the direction of the furnace door, and the furnace door is opened smoothly. The utility model has the characteristics of simple structure is reasonable, the dependable performance, the installation is dismantled in a flexible way etc, effectively solves transmission structure and opens the door not in the same direction as smooth problem, improves product quality, promotes client and uses the experience degree, and the practicality is strong.

Description

Door opening assembly of microwave oven

Technical Field

The utility model relates to a domestic appliance, concretely relates to microwave oven's subassembly that opens door is fit for being used for on the microwave oven.

Background

The existing microwave oven door opening mode can be divided into a side pull type, a pull-down type, a mechanical press type, an electronic button type and a drawer push-pull type; the door opening and closing system of the microwave oven is a main link in the overall control system of the microwave oven and plays a decisive role in the normal use of the microwave oven; in the traditional door body structure, a door hook is arranged on a door body and is elastically connected with the door body through a spring. The door hook extends into the box body of the microwave oven to contact with the micro switch in the box body, so that the power supply is switched on or off; meanwhile, the door hook hooks the limiting plate in the box body, so that the door body cannot be opened in a natural state. When opening the door, the structure that makes the door hook break away from the limiting plate generally has two kinds:

firstly, a handle is arranged on a door body, a door hook is driven to move outwards by pulling the handle by hand, and the door hook slides off a limiting block under the action of external tension and a spring;

the second kind sets up the button on the box that lies in a body side, rotates the piece that sets up corresponding to the position of button in the box, rotates the piece and is equipped with the top pressure portion of roof pressure door hook, comes the roof pressure through pressing the button and rotates the piece and make and rotate the piece and rotate, makes the roof pressure portion of rotating the piece up the bottom of roof pressure door hook, makes door hook rebound and breaks away from the stopper to make the door body open.

However, the door body of the second structure has the following disadvantages: after the top pressure portion of the rotating piece in the traditional structure pushes the door hook away from the limiting block, the top pressure portion can push against the horizontal bottom surface of the door hook, the contact part of the top pressure portion and the horizontal surface can generate frictional resistance in the front-back direction, and if the door opening button is continuously pressed, the frictional resistance can be continuously generated, so that the clamping stagnation phenomenon occurs when the furnace door is opened.

If the top of the case shell is provided with a limiting edge corresponding to the position above the door body, when the button is pressed down, the top pressing part of the rotating part presses the door hook to enable the door body to be stressed upwards, the top of the door body can be pressed against the limiting edge, the door body is difficult to open smoothly, and the experience effect of a customer is poor.

Chinese patent document No. CN201925981U discloses a universal oven door interlocking mechanism for microwave ovens in 2010, 9-29, which specifically includes a switch seat, a door hook and a front plate. The switch seat can be placed with a plurality of switches, and the position corresponding to each switch is provided with an action key for operating the switch. The door hook is set on the door of the microwave oven and combined with or separated from the switch seat with the opening and closing of the door. The door hook is provided with at least one hook part for triggering the switches by touching the action keys. The front plate is used for fixing the switch base on the cavity of the microwave oven. The interlocking mechanism for the universal oven door of the microwave oven only solves the problem that the interlocking mechanism with the door opening mode cannot be universal, reduces the number of components, but generates frictional resistance when the door hook is contacted with the door opening lever, so that the body door is blocked when being opened.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, dependable performance, installation are dismantled in a flexible way, are effectively solved transmission structure and open the door not in the same direction as smooth problem, improve product quality, promote the door opening assembly of microwave oven that customer used experience to overcome the weak point among the prior art.

The door opening assembly for microwave oven includes oven door, box body and switch bracket set on the box body, and features that: the furnace door further comprises a door hook arranged on the furnace door and a rotating part arranged on the box body, wherein the bottom of the door hook is provided with a working surface which is an arc surface and/or an inclined surface, and one side of the rotating part is provided with a jacking part; a limit block is arranged on the switch bracket; when the furnace door is closed, the door hook acts on the limiting block; in the process of opening the furnace door, when the bottom of the door hook just breaks away from the limiting block, the jacking part acts on the working surface, so that the jacking part generates thrust in the direction of the furnace door, and the furnace door is opened smoothly.

The working surface is an inclined surface, the bottom of the door hook is also provided with a sliding surface, and an angle a is arranged between the sliding surface and the working surface.

The angle a is 10-20 degrees.

The door opening assembly of the microwave oven also comprises a control box, a button and a box body front plate arranged on one side of the box body, wherein the box body front plate is provided with a fixed plate corresponding to the control box; the door hook is provided with a limiting groove corresponding to the limiting block, and the door hook acts on the limiting block through the limiting groove; wherein, when the rotation piece rotates through the button, the door hook is separated from the limiting block.

The switch bracket is characterized in that a through hole is formed in one side of the fixed plate, a hook is arranged on the switch bracket corresponding to the through hole, and the switch bracket acts on the through hole through the hook so that the fixed plate and the switch bracket are fastened.

A buckling fitting piece is arranged between the rotating piece and the control box, and the rotating piece is rotatably connected outside the control box through a buckling piece.

The buckling piece comprises a shaft connecting part arranged in the control box and a protruding block arranged on the other side of the rotating part, and the shaft connecting part is connected with a shaft hole of the protruding block in a matched mode.

The button is located the control box bottom, and is provided with push rod and spring in the button, and the spring housing is located on the push rod, and spring one end elasticity acts on the button, and other end elasticity acts on the control box.

In the door opening assembly of the utility model, the angle of the working surface of the door hook is increased, the front and back length of the sliding surface of the door hook is reduced, and the surface-to-surface contact mode that the working surface of the door hook and the jacking part form an included angle with the horizontal direction is realized; when the door opening button is continuously pressed down and the push rod pushes the rotating piece to rotate anticlockwise, the top pressing portion is in contact with the working surface, and the door hook moves upwards through pushing of the top pressing portion, so that the door is smoothly opened; when the door hook rises to the highest point and cannot normally slide out in a natural state or in the presence of external extrusion, the outward slight thrust of the top pressing part enables the whole door hook to easily slide out along with the switch bracket by pressing the button. The door opening device has the advantages of being simple and reasonable in structure, reliable in performance, flexible in mounting and dismounting and the like, effectively solves the problem that a transmission structure is not smooth when a door is opened, improves product quality, improves use experience of customers, and is high in practicability.

Drawings

Fig. 1 and fig. 2 are schematic views of an assembly structure in different orientations according to an embodiment of the present invention.

Fig. 3 is an assembly structure diagram (perspective view) of a door opening assembly according to an embodiment of the present invention.

Fig. 4 is an exploded schematic view of a door opening assembly according to an embodiment of the present invention.

Fig. 5 is an assembly structure diagram (front view) of a door opening assembly according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of a point a in fig. 5.

Fig. 7 is an enlarged schematic view of fig. 2 at B.

Fig. 8 and 9 are diagrams illustrating the movement of the door opening assembly according to an embodiment of the present invention.

Fig. 10 is a schematic structural view (perspective) of a door hook according to an embodiment of the present invention.

Fig. 11 is a schematic structural view (front view) of a door hook according to an embodiment of the present invention.

Fig. 12 is an enlarged schematic view at C in fig. 11.

Fig. 13 is a schematic view of a structure of a prior art opening door assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-13, the door opening assembly of the microwave oven comprises an oven door 1, a box body 9, a switch bracket 6 arranged on the box body 9, a door hook 4 arranged on the oven door 1 and a rotating member 5 arranged on the box body 9, wherein the bottom of the door hook 4 is provided with a working surface 4.1, the working surface 4.1 is an arc surface and/or an inclined surface, and one side of the rotating member 5 is provided with a top pressing part 5.1; a limiting block 6.1 is arranged on the switch bracket 6; wherein, when the furnace door 1 is closed, the door hook 4 acts on the limiting block 6.1; in the process of opening the furnace door 6.1, when the bottom of the door hook 4 is just separated from the limiting block 6.1, the jacking part 5.1 acts on the working surface 4.1, so that the jacking part 5.1 generates thrust in the direction of the furnace door 1, and the furnace door 1 is smoothly opened; the angle of the working surface 4.1 of the door hook 4 is increased, the front-back length of the sliding surface 4.2 of the door hook is reduced, and the working surface 4.1 of the door hook 4 and the top pressing part 5.1 realize a surface-to-surface contact mode forming an included angle with the horizontal direction; when the door hook 4 rises to the highest point, in a natural state or when the door hook cannot normally slide out due to external extrusion, the button 3 is pressed, the outward slight thrust of the top pressing part 5.1 enables the whole door hook 4 to easily slide out along with the switch bracket 6, the problem that the door of the transmission structure is not smoothly opened is solved, the product quality is improved, and the use experience of customers is improved.

Referring to fig. 12, the working surface 4.1 is an inclined surface, the bottom of the door hook 4 is further provided with a sliding-out surface 4.2, and an angle a is arranged between the sliding-out surface 4.2 and the working surface 4.1.

The angle a is 10-20 deg.

The door opening assembly of the microwave oven also comprises a control box 2, a button 3 and a box body front plate 7 arranged on one side of a box body 9, wherein the box body front plate 7 is provided with a fixing plate 8 corresponding to the control box 2; the door hook 4 is provided with a limiting groove 4.3 corresponding to the limiting block 6.1, and the door hook 4 acts on the limiting block 6.1 through the limiting groove 4.3; wherein, when rotating piece 5 rotates through button 3, door hook 4 and stopper 6.1 separation.

Referring to fig. 7, a through hole 8.1 is formed in one side of the fixing plate 8, a hook 6.2 is formed in the switch bracket 6 corresponding to the through hole 8.1, and the switch bracket 6 acts on the through hole 8.1 through the hook 6.2, so that the fixing plate 8 and the switch bracket 6 are fastened.

A fastening fitting piece is arranged between the rotating piece 5 and the control box 2, and the rotating piece 5 is rotatably connected outside the control box 2 through a fastening piece.

The fastener is including setting up in 2 internal junction portions 2.1 of control box to and set up at the protruding piece 5.2 that rotates 5 opposite sides, and the cooperation is closely, the convenient dismantlement in the cooperation connection of axle junction portion 2.1 and protruding piece 5.2 shaft hole.

Referring to fig. 4, the button 3 is located at the bottom of the control box 2, and a push rod 3.1 and a spring 3.2 are arranged in the button 3, the spring 3.2 is sleeved on the push rod 3.1, one end of the spring 3.2 elastically acts on the button 3, and the other end elastically acts on the control box 2.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a microwave oven's subassembly that opens door, includes furnace door (1), box (9) and sets up switch bracket (6) on box (9), its characterized in that: the oven door is characterized by further comprising a door hook (4) arranged on the oven door (1) and a rotating piece (5) arranged on the box body (9), wherein a working surface (4.1) is arranged at the bottom of the door hook (4), the working surface (4.1) is an arc surface and/or an inclined surface, and a jacking portion (5.1) is arranged on one side of the rotating piece (5); a limit block (6.1) is arranged on the switch bracket (6); wherein, when the furnace door (1) is closed, the door hook (4) acts on the limiting block (6.1); in the process of opening the furnace door (1), when the bottom of the door hook (4) is just separated from the limiting block (6.1), the top pressing part (5.1) acts on the working surface (4.1), so that the top pressing part (5.1) generates thrust towards the direction of the furnace door (1) to smoothly open the furnace door (1).

2. The door opening assembly of a microwave oven as claimed in claim 1, wherein: the working face (4.1) is an inclined face, a sliding-out face (4.2) is further arranged at the bottom of the door hook (4), and an angle a is arranged between the sliding-out face (4.2) and the working face (4.1).

3. The door opening assembly of a microwave oven as claimed in claim 2, wherein: the angle a is 10-20 degrees.

4. The door opening assembly of a microwave oven as claimed in claim 1, wherein: the automatic control box is characterized by further comprising a control box (2), a button (3) and a box body front plate (7) arranged on one side of the box body (9), wherein the box body front plate (7) is provided with a fixing plate (8) corresponding to the control box (2); the door hook (4) is provided with a limiting groove (4.3) corresponding to the limiting block (6.1), and the door hook (4) acts on the limiting block (6.1) through the limiting groove (4.3); wherein, when the rotating piece (5) rotates through the button (3), the door hook (4) is separated from the limiting block (6.1).

5. The door opening assembly of a microwave oven as claimed in claim 4, wherein: fixed plate (8) one side is provided with through-hole (8.1), switch bracket (6) correspond through-hole (8.1) and are provided with couple (6.2), and switch bracket (6) act on through-hole (8.1) through couple (6.2) to make fixed plate (8) and switch bracket (6) lock joint.

6. The door opening assembly of a microwave oven as claimed in claim 4, wherein: a buckling fitting piece is arranged between the rotating piece (5) and the control box (2), and the rotating piece (5) is rotatably connected outside the control box (2) through a buckling piece.

7. The door opening assembly of a microwave oven as claimed in claim 6, wherein: the buckling piece comprises a shaft connecting part (2.1) arranged in the control box (2) and a protruding block (5.2) arranged on the other side of the rotating part (5), and the shaft connecting part (2.1) is connected with the shaft hole of the protruding block (5.2) in a matched mode.

8. The door opening assembly of a microwave oven as claimed in claim 4, wherein: the button (3) is located the bottom of the control box (2), a push rod (3.1) and a spring (3.2) are arranged in the button (3), the spring (3.2) is sleeved on the push rod (3.1), one end of the spring (3.2) elastically acts on the button (3), and the other end of the spring elastically acts on the control box (2).