Simple electric door opening device and microwave oven

Abstract

The utility model provides a simple electric door opening device and a microwave oven. The simple electric door opening device comprises an electric driving assembly, a back shore assembly, a door hook assembly, a support assembly and a switch assembly. One end of the electric driving assembly abuts against one end of the door hook assembly through the jacking assembly. The other end of the electric driving assembly is connected with a front panel of the microwave oven; one end of the door hook assembly can abut against or be separated from the support assembly in an up-down moving mode. The other end of the door hook assembly is connected with an oven door of the microwave oven; the back shore assembly and the door hook assembly abut against or are separated from the switch assembly, and the switch assembly is arranged on the support assembly; wherein the electric driving assembly comprises a panel assembly and a motor, and the panel assembly and the motor are both connected with the jacking assembly; according to the simple electric door opening device and the microwave oven, the structure of the door opening device can be effectively simplified, the door opening mode can be optimized, the door opening cost can be reduced, the safety of the device can be improved, the size of the device can be reduced, and the disassembly and assembly convenience of the device in the microwave oven can be improved.

Description

Technical Field

[0001] This utility model relates to the field of microwave ovens, and more specifically, to a simple electric door opening device and a microwave oven. Background Technology

[0002] Traditional cooking appliances, such as microwave ovens and ovens, primarily use pull-type or button-type door opening mechanisms. Users open and close the door by pulling the handle or pressing the button. With continuous technological advancements and rising living standards, integrated embedded microwave ovens, lacking pull-type or button-type opening mechanisms, offer a more aesthetically pleasing design. Therefore, electric door opening mechanisms, characterized by safety, aesthetics, convenience, and ease of use, are becoming increasingly common. Electric door opening can significantly improve our quality of life. However, in reality, electric door opening mechanisms present challenges. Firstly, they are relatively complex and have lower safety standards. Secondly, the door opening and closing typically involves a drive mechanism that rotates a cam, which, due to its complex structure, increases costs and occupies a significant amount of space. Therefore, researching ways to simplify the door opening structure, reduce its size, and lower its cost while still ensuring the implementation of electric door opening is of great importance.

[0003] Patent publication CN118623351A discloses an electrically operated microwave oven, comprising a door body, a door hook bracket slidably connected to the door body; a cabinet, with a first door hook and a second door hook capable of engaging with the cabinet, the cabinet and door connected by a door opener; an interlocking bracket fixedly connected to the cabinet; a pushing member connected to the interlocking bracket, the pushing member having a slot, the pushing member capable of moving the second door hook to disengage from the cabinet; a driving member connected to the interlocking bracket, the driving member including a locking block capable of engaging or disengaging with the slot; and a reset member fixedly connected to the interlocking bracket and the pushing member, the reset member capable of moving the pushing member when the driving member is damaged and immobile. This electrically operated door structure can improve the safety of the microwave oven's electrically operated door, but due to its complexity, it tends to result in higher costs. Utility Model Content

[0004] In view of this, the present invention aims to propose a simple electric door opening device and microwave oven to solve the problems of the complexity of existing electric door opening methods, which result in high cost, low safety, large size, and low flexibility of disassembly and assembly. This invention effectively simplifies the structure of the door opening device, optimizes the opening method, reduces opening costs, improves device safety, reduces device size, and enhances the ease of disassembly and assembly within the microwave oven. It achieves the door component opening system function while ensuring complete integration into the installation space of the microwave oven where the door opening device is to be installed.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] This utility model relates to a simple electric door opening device and a microwave oven. The simple electric door opening device includes an electric drive assembly, a top support assembly, a door hook assembly, a bracket assembly, and a switch assembly. One end of the electric drive assembly abuts against one end of the door hook assembly via the top support assembly. The other end of the electric drive assembly is connected to the front panel of the microwave oven. One end of the door hook assembly abuts against or separates from the bracket assembly in a way that allows it to move up and down. The other end of the door hook assembly is connected to the oven door of the microwave oven. Both the top support assembly and the door hook assembly abut against or separate from the switch assembly, which is mounted on the bracket assembly. The electric drive assembly includes a panel assembly and a motor, both of which are connected to the top support assembly.

[0007] Furthermore, the motor is embedded inside the bottom of the panel assembly.

[0008] Furthermore, the motor is a telescopic motor.

[0009] Furthermore, the panel assembly includes a control panel and a mounting bracket, both of which are connected to the front panel of the microwave oven. The control panel is positioned on the side of the mounting bracket facing the oven door.

[0010] Furthermore, the electric drive assembly also includes a strut, one end of which abuts against or separates from the panel assembly; the other end of which abuts against the top support assembly in a movable manner; and the outer side wall of the strut extends through the central hole of the motor in a movable manner.

[0011] Furthermore, the top support assembly includes a first connector, a second connector, and a third connector; one end of the first connector is connected to one end of the third connector via one end of the second connector; the other end of the first connector abuts against the support rod; the other end of the second connector is connected to the mounting bracket; and the other end of the third connector abuts against the door hook assembly.

[0012] Furthermore, the connecting piece includes a base plate and a reinforcing plate; both the base plate and the reinforcing plate are vertically arranged at the bottom of the two connecting pieces; the reinforcing plate is located on the rear side of the base plate, and the front side of the base plate abuts against the support rod.

[0013] Furthermore, the connecting parts include a connecting ear, an adapter plate, and an adapter block; the connecting ear is connected to one end of the adapter block and the connecting part respectively through the adapter plate; the other end of the adapter block abuts against the door hook assembly.

[0014] Furthermore, the three connecting pieces include a first side plate, a second side plate, and a third side plate; one end of the first side plate is connected to one end of the third side plate through the second side plate, and the other ends of the first side plate and the third side plate are both vertically set on the top of the adapter block connecting the two pieces; a through hole is formed between the first side plate, the second side plate, and the third side plate.

[0015] A microwave oven includes a simple electric door opening device, one end of which is connected to the door and the other end of which is connected to the main body.

[0016] Compared with the prior art, the simple electric door opening device and microwave oven described in this utility model have the following advantages:

[0017] The aforementioned device effectively simplifies the structure of the door opening mechanism, optimizes the opening method, reduces opening costs, improves device safety, reduces device size, and enhances the ease of installation and removal within the microwave oven. It not only enables the door assembly to function as a door opening system but also ensures complete integration into the installation space of the microwave oven where the door opening mechanism is to be installed. Attached Figure Description

[0018] The accompanying drawings, which constitute a part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments and descriptions of the utility model are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of the microwave oven with the door opening device installed inside.

[0020] Figure 2 This is a schematic diagram of the exploded structure of the door opening device;

[0021] Figure 3 This is a schematic diagram of the device with the door open.

[0022] Figure 4 This is a schematic diagram of the device in the closed state;

[0023] Figure 5 This is a schematic diagram of the overall structure of the support component;

[0024] Figure 6 This is a schematic diagram of the connection structure between the telescopic motor and the support rod.

[0025] Explanation of reference numerals in the attached drawings: 1. Electric drive assembly; 11. Panel assembly; 111. Control panel; 112. Mounting bracket; 1121. Groove; 1122. Support; 12. Motor; 13. Support rod; 2. Top support assembly; 21. Connector; 211. Base plate; 212. Reinforcing plate; 22. Connector; 221. Connecting ear; 222. Adapter plate; 223. Adapter block; 23. Connector; 3. Door hook assembly; 31. First door hook; 32. Second door hook; 33. Connector; 4. Bracket assembly; 41. Limiting bracket; 411. Limiting through hole; 42. Bracket body; 5. Switch assembly; 51. First micro switch; 52. Second micro switch; 53. Third micro switch. Detailed Implementation

[0026] The inventive concepts of this disclosure will be described below using terminology commonly used by those skilled in the art to convey the essence of their work to others skilled in the art. However, these inventive concepts may be embodied in many different forms and should not be construed as limited to the embodiments described herein.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] This embodiment is for a microwave oven. Similar to a conventional microwave oven, the overall structure consists of a door, an outer shell, and a cavity.

[0031] To address the problems of complex electric door opening methods in existing technologies, resulting in high cost, low security, large size, and limited flexibility in assembly and disassembly, this embodiment proposes a simplified electric door opening device and microwave oven. The simplified electric door opening device includes an electric drive assembly 1, a top support assembly 2, a door hook assembly 3, a bracket assembly 4, and a switch assembly 5. One end of the electric drive assembly 1 abuts against one end of the door hook assembly 3 via the top support assembly 2; the other end of the electric drive assembly 1 is connected to the front panel of the microwave oven. One end of the door hook assembly 3 abuts against or separates from the bracket assembly 4 in a vertically movable manner; the other end of the door hook assembly 3 is connected to the microwave oven door. Both the top support assembly 2 and the door hook assembly 3 abut against or separate from the switch assembly 5, which is mounted on the bracket assembly 4. The electric drive assembly 1 includes a panel assembly 11 and a motor 12, both connected to the top support assembly 2. The motor 12 is embedded inside the bottom end of the panel assembly 11. In this embodiment, the motor 12 is a telescopic motor.

[0032] Unlike most existing microwave ovens that open the door by rotating the arm wheel via a motor, this application utilizes the extension and retraction of an internal motor 12 to push open the top support assembly 2, causing the door hook assembly 3 to move upwards. This effectively simplifies the door opening mechanism's structure, optimizes the opening method, reduces costs, improves safety, reduces size, and enhances ease and flexibility of installation and removal within the microwave oven. It achieves the door opening system's functionality while ensuring seamless integration into the microwave oven's installation space. Furthermore, this integrated, built-in microwave oven boasts a more aesthetically pleasing appearance and more convenient door opening.

[0033] The panel assembly 11 includes a control panel 111 and a mounting bracket 112. Both the control panel 111 and the mounting bracket 112 are connected to the front panel of the microwave oven. The control panel 111 is located on the side of the mounting bracket 112 facing the oven door. The mounting bracket 112 includes a groove 1121 located on the side of the mounting bracket 112 away from the oven door; the motor 12 is located at the bottom of the groove 1121. The mounting bracket 112 also includes a support member 1122, which is mounted on the mounting bracket 112. One end of the support member 1122 is connected to the inner wall of the groove 1121, and the other end is connected to the top support assembly 2. At least one support member 1122 is provided. Preferably, two support members 1122 are provided. Both support members 1122 are located on the inner wall of the groove 1121. The two support members 1122 are arranged parallel to each other. Both support members 1122 are connected to the top support assembly 2.

[0034] By arranging the components within the panel assembly 11, the intelligence of the door opening device can be improved, installation space can be provided for the electric drive assembly 1, the overall size of the door opening device can be reduced to the greatest extent possible, and the structure of the door opening device can be simplified, thereby improving the efficiency of disassembly and assembly.

[0035] The electric drive assembly 1 also includes a support rod 13, one end of which abuts against or separates from the mounting bracket 112 of the panel assembly 11; the other end of the support rod 13 abuts against the top support assembly 2 in a movable manner. The outer side wall of the support rod 13 is movably disposed through the central hole of the motor 12. The outer side wall of the support rod 13 is threaded.

[0036] The support rod 13 facilitates extension and retraction in the front-to-back direction under the action of the motor 12. Simultaneously, the external thread provides anti-slip properties, improving the operational stability and safety of the switching device.

[0037] The top support assembly 2 is connected to the support member 1122. Through the cooperation of the support rod 13 and the top support assembly 2, on the one hand, the automatic opening and closing of the door hook can be achieved through the action of the telescopic motor 12. The cooperation of the support rod 13 and the top support assembly 2 simplifies the structure of the device and reduces its cost. On the other hand, the combined arrangement of the two helps to improve the safety and reliability of the device during the opening and closing process.

[0038] The top support assembly 2 includes a connecting piece 21, a connecting piece 22, and a connecting piece 23. One end of the connecting piece 21 is connected to one end of the connecting piece 23 via one end of the connecting piece 22. The other end of the connecting piece 21 abuts against the support rod 13; the other end of the connecting piece 22 is connected to the support member 1122 on the mounting bracket 112; and the other end of the connecting piece 23 abuts against the door hook assembly 3.

[0039] By coordinating the components of the top support assembly 2, the reliability of its installation is improved, the flexibility of its assembly and disassembly is ensured, and the overall mechanical stability of the top support assembly 2 is enhanced.

[0040] The connecting piece 21 includes a base plate 211 and a reinforcing plate 212. Both the base plate 211 and the reinforcing plate 212 are vertically disposed at the bottom of the connecting piece 22; the reinforcing plate 212 is disposed on the rear side of the base plate 211, and the front side of the base plate 211 abuts against the support rod 13. At least one reinforcing plate 212 is provided. The reinforcing plate 212 is wedge-shaped. Preferably, three reinforcing plates 212 are provided. The three reinforcing plates 212 are arranged parallel to each other in pairs. All three reinforcing plates 212 are vertically disposed on the rear side of the base plate 211.

[0041] By connecting piece 21, the structure of the top support assembly 2 is simplified, the volume of the top support assembly 2 is reduced, the tightness of the connection between the top support assembly 2 and the motor 12 is improved, and the manufacturing cost of the top support assembly 2 is reduced while ensuring the structural stability and safety of the top support assembly 2.

[0042] Additionally, the connecting component 22 includes a connecting ear 221, an adapter plate 222, and an adapter block 223. The connecting ear 221 is connected to one end of the adapter block 223 and the connecting component 21 via the adapter plate 222; the other end of the adapter block 223 abuts against the door hook assembly 3. Specifically, there is a certain angle between the connecting ear 221 and the adapter plate 222. The adapter block 223 is vertically disposed on the top of the adapter plate 222. At least one connecting ear 221 is provided.

[0043] Preferably, two connecting ears 221 are provided to improve the mechanical stability of the top support assembly 2. Each connecting ear 221 has a connecting through hole, and the support member 1122 has a positioning hole. When installing the connecting ear 221 and the support member 1122, after aligning the connecting through hole and the positioning hole, the connecting ear 221 is connected to the support member 1122 via a fixing member, which passes through both the connecting through hole and the positioning hole.

[0044] The adapter block 223 includes an adapter side plate, an adapter side plate, and an adapter support. The adapter side plate, adapter side plate, and adapter support are all located on top of the adapter plate 222; the adapter side plate and adapter side plate are connected to the adapter support, and the adapter side plate and adapter side plate are arranged parallel to each other. The adapter support has through holes to reduce the weight of the adapter block 223, reduce the difficulty of the motor 12 acting on the top support assembly 2, and also help reduce energy consumption. The top of the adapter support is connected to the connecting three-piece 23. Both the adapter side plate and adapter side plate are wedge-shaped.

[0045] By connecting the components within the two parts 22, on the one hand, it can pave the way for a tight fit between the door hook assembly 3 and the top support assembly 2; on the other hand, it can realize the movable connection between the electric drive assembly 1 and the top support assembly 2.

[0046] Furthermore, the connecting three pieces 23 include a first side plate, a second side plate, and a third side plate. One end of the first side plate is connected to one end of the third side plate via the second side plate, and the other ends of the first and third side plates are vertically positioned on the top of the adapter block 223 connecting the two pieces 22. A through hole is formed between the first, second, and third side plates, which serves to support the door hook assembly 3 and also helps to reduce the weight of the device. The first and third side plates are both flat plates. The second side plate includes a first plate and a second plate, which are smoothly connected by an arc. The first plate is positioned on the front side of the second plate. The first plate has a certain angle with the top of the adapter block 223. The second plate is parallel to the top of the adapter block 223. The angle between the first and second plates is α, where α is a positive number. 90° < α < 180°.

[0047] The arc connection between the first and second plates allows the three connecting pieces 23 to maintain contact with the door hook assembly 3 at different positions in both states: whether the three pieces 23 are lifting the door hook assembly 3 or lowering it under the action of the door hook assembly 3. This helps prevent components inside the device from falling off and also improves the stability and reliability of the device.

[0048] The bracket assembly 4 includes a limiting bracket 41 and a bracket body 42. The limiting bracket 41 is vertically disposed on the side of the bracket body 42 away from the microwave oven body. The door hook assembly 3 is movable and abuts against or separates from the limiting bracket 41. The limiting bracket 41 includes a limiting through hole 411, which is disposed on the limiting bracket 41. At least two limiting through holes 411 are provided, and the end of the door hook assembly 3 away from the door body passes through the limiting through hole 411, allowing the door hook assembly 3 to abut against or separate from the limiting through hole 411.

[0049] The coordinated arrangement of the limiting bracket 41 and the bracket body 42 helps to reduce the space occupied by the overall structure of the door opening device, and also helps to provide support for the installation of the door hook assembly 3, electric drive assembly 1, top support assembly 2, and switch assembly 5. It also makes it easier to install the door opening device on the main body of the microwave oven. In this way, the door opening system can be realized with the coordinated arrangement of the components in the door opening device, while fully guaranteeing the installation space of the integrated embedded small-capacity microwave oven with a capacity of 17L-20L.

[0050] The door hook assembly 3 includes a first door hook 31, a second door hook 32, and a connector 33. The first door hook 31, the second door hook 32, and the connector 33 are all connected to the door body. One end of the first door hook 31 is connected to one end of the second door hook 32 via the connector 33. The other ends of both the first door hook 31 and the second door hook 32 are connected to corresponding limiting holes on the bracket assembly 4 in a way that allows them to move up and down. In this embodiment, a tension spring is provided between the first door hook 31 and the second door hook 32, and the tension spring is arranged parallel to the connector 33.

[0051] The two door hooks in the door hook assembly 3 enable the opening and closing of the switch assembly 5. This facilitates the activation of the internal motor 12, which in turn drives the top support assembly 2 to open the door hook assembly 3. Furthermore, it enhances the appearance of the integrated built-in microwave oven, making it more aesthetically pleasing and easier to open.

[0052] The switch assembly 5 includes a first micro switch 51, a second micro switch 52, and a third micro switch 53. All three micro switches are mounted on the bracket assembly 4 and are located on the front side of the bracket body 42. The first micro switch 51 abuts against or separates from the first door hook 31, the second micro switch 52 abuts against or separates from the second door hook 32, and the third micro switch 53 abuts against or separates from the top support assembly 2. Specifically, the first door hook 31 is used to open or close the first micro switch 51; the second door hook 32 is used to open or close the second micro switch 52; and the support rod 13 of the top support assembly 2 is used to open or close the third micro switch 53.

[0053] By cooperating with the various microswitches in conjunction with the door hook assembly 3 and the top support assembly 2, the device features a simple and reasonable structure, low cost, and flexible installation and disassembly. It also enables automatic opening and closing of the microwave oven door under the action of the motor 12. Furthermore, the addition of the microswitches eliminates the need for handles and buttons on the outside of the microwave oven door, improving its aesthetics. In addition, the cooperation between the switch assembly 5, the door hook assembly 3, and the electric drive assembly 1 enables automatic opening and closing of the microwave oven door, improving its intelligence and automation level, and enhancing the safety of opening and closing the door.

[0054] Working principle:

[0055] When powered on, the telescopic motor 12 starts, driving the support rod 13 to rotate and push the rotating connecting plate, i.e., the top support assembly 2, outward. That is, the support rod 13 extends backward, causing the top support assembly 2 to lift and rotate upward. The movement of the top support assembly 2 activates the third micro switch 53, and pushes the door hook assembly 3 upward. That is, the first door hook 31 lifts upward and activates the first micro switch 51, and the second door hook 32 lifts upward and activates the second micro switch 52, thus opening the microwave oven door.

[0056] When the door is fully open, the telescopic motor 12 drives the support rod 13 to return to its original position. After the door hook assembly 3 closes the door, the door hook assembly 3 moves downward, driving the top support assembly 2 to move downward, closing the third micro switch 53. That is, the first door hook 31 moves downward to close the first micro switch 51, and the second door hook 32 moves downward to close the second micro switch 52, thus closing the microwave oven door.

[0057] A microwave oven includes a simple electric door opening device integrated into its interior. One end of the electric door opening device is connected to the door, and the other end is connected to the main body. In this embodiment, the microwave oven is a small-capacity microwave oven, with a capacity ranging from 17L to 20L.

[0058] In this utility model, any microwave oven may include the simple electric door opening device structure described in this embodiment. In addition to the relevant structure and assembly relationship of the support rod 13 and the top support component 2 provided in this embodiment, the microwave oven also includes conventional components such as the door, outer shell, and oven cavity. Since these are all prior art, they will not be described in detail here.

[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simple electric door opening device, characterized in that, The microwave oven includes an electric drive assembly (1), a top support assembly (2), a door hook assembly (3), a bracket assembly (4), and a switch assembly (5). One end of the electric drive assembly (1) abuts against one end of the door hook assembly (3) via the top support assembly (2). The other end of the electric drive assembly (1) is connected to the front panel of the microwave oven. One end of the door hook assembly (3) abuts against or separates from the bracket assembly (4) in a way that allows it to move up and down. The other end of the door hook assembly (3) is connected to the oven door of the microwave oven. Both the top support assembly (2) and the door hook assembly (3) abut against or separate from the switch assembly (5), and the switch assembly (5) is mounted on the bracket assembly (4). The electric drive assembly (1) includes a panel assembly (11) and a motor (12), and both the panel assembly (11) and the motor (12) are connected to the top support assembly (2).

2. The simple electric door opening device according to claim 1, characterized in that, The motor (12) is embedded inside the bottom of the panel assembly (11).

3. A simple electric door opening device according to claim 2, characterized in that, The motor (12) is a telescopic motor.

4. A simple electric door opening device according to claim 2, characterized in that, The panel assembly (11) includes a control panel (111) and a mounting bracket (112). Both the control panel (111) and the mounting bracket (112) are connected to the front panel of the microwave oven. The control panel (111) is located on the side of the mounting bracket (112) facing the oven door.

5. A simple electric door opening device according to claim 1, characterized in that, The electric drive assembly (1) also includes a support rod (13), one end of which abuts or separates from the panel assembly (11); the other end of the support rod (13) abuts against the top support assembly (2) in a movable manner; and the outer side wall of the support rod (13) extends through the central hole of the motor (12) in a movable manner.

6. A simple electric door opening device according to claim 5, characterized in that, The top support assembly (2) includes a connecting piece (21), a connecting piece (22), and a connecting piece (23); one end of the connecting piece (21) is connected to one end of the connecting piece (23) through one end of the connecting piece (22); the other end of the connecting piece (21) abuts against the support rod (13); the other end of the connecting piece (22) is connected to the mounting bracket (112); and the other end of the connecting piece (23) abuts against the door hook assembly (3).

7. A simple electric door opening device according to claim 6, characterized in that, The connecting piece (21) includes a base plate (211) and a reinforcing plate (212); the base plate (211) and the reinforcing plate (212) are both vertically arranged at the bottom of the connecting piece (22); the reinforcing plate (212) is arranged on the rear side of the base plate (211), and the front side of the base plate (211) abuts against the support rod (13).

8. A simple electric door opening device according to claim 6, characterized in that, The connecting two parts (22) include a connecting ear (221), an adapter plate (222) and an adapter block (223); the connecting ear (221) is connected to one end of the adapter block (223) and the connecting part (21) respectively through the adapter plate (222); the other end of the adapter block (223) abuts against the door hook assembly (3).

9. A simple electric door opening device according to claim 6, characterized in that, The connecting three pieces (23) include a first side plate, a second side plate and a third side plate; one end of the first side plate is connected to one end of the third side plate through the second side plate, and the other ends of the first side plate and the third side plate are both vertically set on the top of the adapter block (223) connecting the two pieces (22); a through hole is formed between the first side plate, the second side plate and the third side plate.

10. A microwave oven, characterized in that, The microwave oven includes a simple electric door opening device according to any one of claims 1-9, one end of the device being connected to the door body and the other end of the device being connected to the main body.

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