Door opening assembly and household appliance

Abstract

The invention discloses a door opening assembly and a household electrical appliance, the door opening assembly comprises a rotating part arranged on a door body, the rotating part rotates around a fixed part arranged on a body while rotating to realize opening and closing of the door body, the door opening assembly provided by the invention revolves around the fixed part while the rotating part rotates, the door opening assembly is not limited by the distance of a door lining, and the door opening assembly is convenient to use. Meanwhile, operation is stable and reliable, automation and convenience are achieved, faults are not prone to occurring, a user can use the door conveniently, opening and closing of the door body are achieved through meshing transmission of a plurality of gears, the driving motor drives the gears to rotate on the fixed gear, the structure is simple, cost is low, hiding is easy, transmission is stable, reliability is high, and the opening and closing angle of the door body can be controlled more accurately; the device can be applied to various household appliances and is wide in application range.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular relates to a door opening component and a household appliance. Background Art

[0002] As people's living standards continue to improve, their requirements for quality of life are also getting higher and higher. Dishwashers, as a device that can automatically wash bowls, chopsticks, plates, dishes, knives, forks and other tableware, can not only reduce people's labor intensity and improve work efficiency, but also make tableware cleaner and more hygienic. Therefore, dishwashers are gradually accepted and recognized by the public and have become one of the essential household appliances in modern smart kitchens.

[0003] A dishwasher includes a body and a door body rotatably connected to the body. The body has a washing cavity for processing dishes, and the door body corresponds to closing or opening the washing cavity. Most existing dishwashers require users to manually open the door body, which may cause the dishes to vibrate or even break due to excessive user thrust, or cause the door body to open too small an angle due to insufficient user thrust, making it inconvenient for users to take and put dishes, resulting in a poor user experience.

[0004] At present, most dishwasher door covers on the market are opened and closed manually, which is not convenient and fast enough, and the human-machine interchangeability is poor. In addition, they all rely on spring pull ropes and magnets or buckles to open and close the dishwasher door, which has the problem of insufficient reliability. At the same time, most dishwashers automatically open the door through the wax motor expanding due to heat, and the movable rod pushes the door open after reaching the travel distance. However, this design is easily limited by the distance of the door lining, prone to failure, and inconvenient for users.

[0005] A Chinese patent application numbered 201811014297.1 discloses an automatic door-opening dishwasher, comprising a dishwasher body and a door cover disposed on the dishwasher body, the rear side of the door cover being rotatably connected to the dishwasher body, the door cover being provided with a first gear, the dishwasher body being provided with a driving mechanism, the driving mechanism comprising a driving motor, a transmission shaft and a second gear, one end of the transmission shaft being transmission-connected to the driving motor, the other end of the transmission shaft being transmission-connected to the second gear, the second gear being meshed with the first gear. Although this structure can realize the automatic opening and closing of the door cover, the door-opening mechanism is complex in structure, prone to failure, high in cost, and inconvenient to install.

[0006] In view of this, the present invention is proposed. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a door opening assembly which has stable and reliable operation, automatic and convenient operation, smooth transmission, high reliability and a wide range of applications, and also provides a household appliance using the door opening assembly.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A door opening assembly comprises a rotating part arranged on a door body, wherein the rotating part rotates around a fixed part arranged on a main body while rotating on its own, so as to realize the opening and closing of the door body.

[0010] Furthermore, the rotating part includes a first rotating component and a second rotating component, and the fixing part includes a first fixing component, and the first rotating component drives the second rotating component to rotate around the first fixing component.

[0011] Furthermore, the first rotating component is provided with a first gear and a driving motor, the second rotating component is provided with a second gear, a first rotating shaft and a third gear, the first fixed component is provided with a fixed gear, the driving motor drives the first gear to rotate, the first gear is meshed with the second gear, the second gear is connected with the third gear through the first rotating shaft, and the fixed gear is meshed with the third gear.

[0012] Furthermore, a controller and a voltage-stabilizing driving module connected to the driving motor are provided, and the controller is used to receive a door opening or closing signal and send a control signal to the voltage-stabilizing driving protection module to control the driving motor to work in forward and reverse directions.

[0013] Furthermore, the voltage-stabilizing drive protection module adjusts the power output according to the specifications of the drive motor, controls the operation of the drive motor, and realizes the smooth opening and closing of the door body.

[0014] Furthermore, the fixed gear is configured as a sector gear, and gear teeth are provided on a side of the fixed gear close to the third gear to cooperate with the third gear to complete the opening and closing of the door body.

[0015] Furthermore, the fixing portion also includes a second fixing component, one end of the second fixing component is connected and fixed to the body, and the first fixing component is fixed to the other end of the second fixing component.

[0016] Furthermore, the second fixing assembly includes a first fixing shaft and a fixing plate, and the first fixing assembly is fixed to the fixing plate via the first fixing shaft.

[0017] Furthermore, the fixing plate is provided with at least one fixing hole, and the second fixing component is connected and fixed to the body through the fixing hole.

[0018] The basic concept of another technical solution of the present invention is:

[0019] A household appliance adopts the door opening assembly as mentioned above.

[0020] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0021] (1) The door opening assembly provided by the present invention revolves around the fixed part while the rotating part rotates on itself, and is not limited by the distance from the door lining. At the same time, the operation is stable and reliable, automatic and convenient, not prone to failure, and convenient for users to use.

[0022] (2) The door opening assembly provided by the present invention is driven by the meshing transmission of multiple gears. The driving motor drives the gear to rotate on the fixed gear to realize the opening and closing of the door body. It has a simple structure, low cost, easy to hide, smooth transmission, high reliability, and can more accurately control the opening and closing angles of the door body.

[0023] (3) The door opening assembly provided by the present invention can be applied to a variety of household appliances, such as dishwashers, microwave ovens, ovens and other household appliances, and has a wide range of applications.

[0024] (4) The household appliance provided by the present invention receives a door opening or closing signal through a controller and sends a control signal to a voltage-stabilizing driving protection module. The voltage-stabilizing driving protection module adjusts the power output according to the specifications of the motor and drives the motor to work, thereby realizing automatic opening and closing of the door body. The door body can be opened automatically after washing is completed, making it convenient for users to take tableware. Before washing begins, the user places the tableware and starts the program, and the door body is automatically closed to prevent water from splashing to the outside during the washing process, thereby effectively improving the user experience.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute improper limitations on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0027] In the attached picture:

[0028] Figure 1 It is a schematic diagram of the structure of the door opening assembly;

[0029] Figure 2 is a schematic structural diagram of a second rotating assembly;

[0030] Figure 3 is a structural schematic diagram of a first fixing component and a second fixing component;

[0031] Figure 4 It is a schematic diagram of the structure of the door opening assembly assembled on the dishwasher.

[0032] In the figure:

[0033] 1. Door body;

[0034] 2. First rotating assembly; 21. Driving motor; 22. First gear;

[0035] 3. Second rotating assembly; 31. Second gear; 32. First rotating shaft; 33. Third gear;

[0036] 4. First fixed assembly; 41. Fixed gear;

[0037] 5. Second fixing assembly; 51. Fixing plate; 52. First fixing shaft; 53. Fixing hole;

[0038] 6. Ontology.

[0039] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0041] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] like Figure 1 As shown, the following embodiments of the present invention provide a door opening assembly for automatically opening and closing a door 1 of a household appliance. The household appliance may be a dishwasher, a microwave oven, etc. In this embodiment, a dishwasher (not shown) is taken as an example for detailed description.

[0044] The present invention provides a door opening assembly, comprising a rotating part arranged on a door body 1 , wherein the rotating part rotates around a fixed part arranged on a main body 6 while rotating on its own, thereby realizing the opening and closing of the door body 1 .

[0045] As a preferred embodiment of the present invention, the rotating part includes a first rotating component 2 and a second rotating component 3 , and the fixed part includes a first fixed component 4 . The first rotating component 2 drives the second rotating component 3 to rotate around the first fixed component 4 .

[0046] It is further preferred that the first rotating component 2 and the second rotating component 3 are both arranged on the door body 1, the first fixed component 4 is arranged on the main body 6, the first rotating component 2 is connected to the second rotating component 3, and the first rotating component 2 rotates while driving the second rotating component 3 to rotate, the second rotating component 3 is connected to the first fixed component 4, and the second rotating component 3 rotates around the first fixed component 4.

[0047] As a preferred embodiment of the present invention, the first rotating component 2 is provided with a first gear 22 and a driving motor 21, the second rotating component 3 is provided with a second gear 31, a first rotating shaft 32 and a third gear 33, the first fixed component 4 is provided with a fixed gear 41, the driving motor 21 drives the first gear 22 to rotate, the fixed gear 41 and the third gear 33 are meshed and connected, the first gear 22 is meshed and connected with the second gear 31, and the second gear 31 and the third gear 33 are connected through the first rotating shaft 32.

[0048] As a preferred embodiment of the present invention, a controller (not shown) and a voltage-stabilizing driving module (not shown) connected to the driving motor 21 are also provided. The controller (not shown) is used to receive a door opening or closing signal and send a control signal to the voltage-stabilizing driving protection module (not shown). The voltage-stabilizing driving protection module (not shown) adjusts the power output and controls the driving motor 21 to work in the forward and reverse directions.

[0049] It is further preferred in this embodiment that the drive motor 21 is connected to a controller (not shown), which controls the operation of the drive motor 21. After receiving a door opening or closing signal, the controller (not shown) sends a control signal to a voltage stabilizing drive protection module (not shown). The voltage stabilizing drive protection module (not shown) adjusts the power output according to the specifications of the drive motor 21 and controls the forward and reverse operation of the drive motor 21.

[0050] As a preferred embodiment of the present invention, the voltage-stabilizing driving protection module (not shown) adjusts the power output according to the specifications of the driving motor 21 , controls the operation of the driving motor 21 , and realizes the smooth opening and closing of the door body 1 .

[0051] This embodiment is further preferred in that the voltage-stabilizing drive protection module adjusts the power output by the specifications of the drive motor 21, controls the operation of the drive motor 21, and drives the first gear 22 to rotate by the drive motor 21. The first gear 22 is meshed and connected with the second gear 31, and the first gear 22 further drives the second gear 31 to rotate, thereby realizing the opening or closing of the door body 1.

[0052] In this embodiment, it is further preferred that the first gear 22 rotates at the same angular velocity as the driving motor 21 .

[0053] In the present embodiment, it is further preferred that the second gear 31 and the third gear 33 serve as transition gears, the purpose of which is to reduce the angular velocity of the first gear 22 so that the opening and closing of the door body 1 is more stable.

[0054] In the present embodiment, it is further preferred that the second gear 31 and the third gear 33 are designed as upper and lower gears, which can reduce the rotation speed of the drive motor 21 and increase the torque of the drive motor 21 .

[0055] As a preferred embodiment of the present invention, the first gear 22 drives the second gear 31 to rotate, the second gear 31 drives the third gear 33 to rotate through the first rotating shaft 32, and the third gear 33 rotates clockwise around the fixed gear 41 to realize automatic opening of the door body 1.

[0056] In the present embodiment, it is further preferred that the first gear 22 is connected to the driving motor 21 , and the driving motor 21 drives the first gear 22 to rotate, and the first gear 22 is meshedly connected to the second gear 31 .

[0057] In this embodiment, it is further preferred that the second gear 31 is disposed at one end of the first rotating shaft 32 , and the third gear 33 is disposed at the other end of the first rotating shaft 32 .

[0058] This embodiment is further preferred, when the dishwasher (not shown) needs to open the door, the controller (not shown) receives the door opening signal, sends the door opening signal to the voltage stabilizing drive protection module (not shown), the voltage stabilizing drive protection module (not shown) adjusts the power output according to the specifications of the drive motor 21, and the controller (not shown) controls the drive motor 21 to operate.

[0059] The present embodiment is further preferred, when the dishwasher (not shown) opens the door, the controller (not shown) controls the driving motor 21 to rotate counterclockwise, the driving motor 21 is connected to the first gear 22, provides power for the first gear 22, drives the first gear 22 to rotate counterclockwise, the first gear 22 is meshed and connected with the second gear 31, the first gear 22 will act on the second gear 31, the second gear 31 rotates clockwise, the second gear 31 drives the third gear 33 to rotate through the first rotating shaft 32, the third gear 33 is meshed and connected with the fixed gear 41, the third gear 33 rotates clockwise around the fixed gear 41, and since the fixed gear 41 is fixed to the body 6, according to the interaction of forces, the first gear 22, the second gear 31 and the third gear 33 will rotate together around the gear center of the fixed gear 41 in the clockwise direction while rotating, so as to realize automatic opening of the door body 1.

[0060] As a preferred embodiment of the present invention, the first gear 22 drives the second gear 31 to rotate, the second gear 31 drives the third gear 33 to rotate through the first rotating shaft 32, and the third gear 33 rotates counterclockwise around the fixed gear 41 to achieve automatic closing of the door body 1.

[0061] This embodiment is further preferred, when the dishwasher (not shown) needs to close the door, the controller (not shown) receives the door closing signal, sends the door closing signal to the voltage stabilizing drive protection module (not shown), the voltage stabilizing drive protection module (not shown) adjusts the power output according to the specifications of the drive motor 21, and the controller (not shown) controls the drive motor 21 to operate.

[0062] The present embodiment is further preferred that when the dishwasher (not shown) is closed, the controller (not shown) controls the drive motor 21 to rotate clockwise, the drive motor 21 is connected to the first gear 22, provides power for the first gear 22, drives the first gear 22 to rotate clockwise, the first gear 22 is meshedly connected with the second gear 31, the first gear 22 acts on the second gear 31, the second gear 31 rotates counterclockwise, the second gear 31 drives the third gear 33 to rotate through the first rotating shaft 32, the third gear 33 is meshedly connected with the fixed gear 41, the third gear 33 rotates counterclockwise around the fixed gear 41, and since the fixed gear 41 is fixed to the dishwasher, according to the interaction of forces, the first gear 22, the second gear 31 and the third gear 33 will rotate together around the gear center of the fixed gear 41 in the counterclockwise direction while rotating, thereby realizing automatic closing of the door body 1.

[0063] As a preferred embodiment of the present invention, the fixed gear 41 is configured as a sector gear, and the fixed gear 41 is provided with gear teeth on a side close to the third gear 33 to cooperate with the third gear 33 to complete the opening and closing of the door body 1.

[0064] In the present embodiment, it is further preferred that the fixed gear 41 is fixed on the fixed plate 51 and cannot rotate, and the reverse torque provided by the fixed gear 41 realizes the opening and closing of the door body 1.

[0065] The present embodiment is further preferred in that the fixed gear 41 is configured as an incomplete gear in a fan-shaped shape, and gear teeth are provided on the side close to the third gear 33, which cooperates with the third gear 33 to complete the opening and closing of the door body 1. The operation is reliable and material is saved. Through gear meshing, the opening and closing angles of the door body 1 can be more accurately controlled.

[0066] The present embodiment is further preferred, where the fixed gear 41 is fixed on the fixed plate 51 and cannot rotate, and due to the interaction of forces, the first gear 22, the second gear 31 and the third gear 33 will rotate on their own and revolve together in the counterclockwise direction around the gear center of the fixed gear 41, thereby achieving automatic closing of the door body 1; and at the same time, due to the interaction of forces, the first gear 22, the second gear 31 and the third gear 33 will rotate on their own and revolve together in the clockwise direction around the gear center of the fixed gear 41, thereby achieving automatic opening of the door body 1.

[0067] In the present embodiment, it is further preferred that the pitch circle diameters of the first gear 22 , the third gear 33 , the second gear 31 and the fixed gear 41 increase in sequence.

[0068] As a preferred embodiment of the present invention, the fixing portion further includes a second fixing component 5 , one end of the second fixing component 5 is connected and fixed to the body 6 , and the first fixing component 4 is fixed to the other end of the second fixing component 5 .

[0069] As a preferred embodiment of the present invention, the second fixing assembly 5 includes a first fixing shaft 52 and a fixing plate 51 , and the first fixing assembly 4 is fixed to the fixing plate 51 via the first fixing shaft 52 .

[0070] The present embodiment is further preferred in that the door body 1 is rotatably connected to the main body 6 via hinges, and the door body 1 can be opened or closed by rotating around a first fixed axis 52 on a fixed plate 51, and the fixed plate 51 is fixedly connected to the top of the main body 6 by screws passing through a fixing hole 53 thereon.

[0071] It is further preferred in this embodiment that the fixing plate 51 can be configured as a hinge, which is fixedly connected to the top, bottom or side of the main body 6, so as to realize the door opening and closing functions of the door body 1 in the form of upward opening, downward opening, side opening, etc.

[0072] As a preferred embodiment of the present invention, at least one fixing hole 53 is provided on the fixing plate 51 , and the second fixing component 5 is connected and fixed to the body 6 through the fixing hole 53 .

[0073] In the present embodiment, three fixing holes 53 are provided on the fixing plate 51 , and screws pass through the three fixing holes 53 to fix the fixing plate 51 on the body 6 .

[0074] In this embodiment, five fixing holes 53 are further preferably provided on the fixing plate 51 , and screws pass through the five fixing holes 53 to better fix the fixing plate 51 on the body 6 .

[0075] The door opening assembly provided by the present invention has the following advantages:

[0076] The door opening assembly provided by the present invention revolves around the fixed part while the rotating part rotates, is not limited by the distance from the door lining, and is stable and reliable in operation, safe and convenient, not prone to malfunction, and convenient for users to use.

[0077] The door opening assembly provided by the present invention is driven by the meshing transmission of multiple gears, and the driving motor drives the gear to rotate on the fixed gear to realize the opening and closing of the door body. It has a simple structure, low cost, easy hiding, smooth transmission, high reliability, and can more accurately control the opening and closing angles of the door body.

[0078] The door opening assembly provided by the present invention can be applied to a variety of household appliances, such as dishwashers, microwave ovens, ovens and other household appliances, and has a wide range of applications.

[0079] The present invention provides a household appliance, which adopts the door opening assembly as mentioned above.

[0080] like Figure 4 As shown, the present embodiment is further preferred. The present embodiment provides a dishwasher, wherein the rotating part is arranged on both sides of the lower end of the door body 1, and the rotating part is symmetrically arranged on both sides of the door body 1. Correspondingly, the fixed part is symmetrically arranged on both side walls of the lower end of the main body 6, and the rotating part rotates around the fixed part while rotating on itself to realize the vertical opening and closing of the door body 1.

[0081] The household appliance provided by the present invention has the following advantages:

[0082] The household appliance provided by the present invention receives a door opening or closing signal through a controller and sends a control signal to a voltage-stabilizing driving protection module. The voltage-stabilizing driving protection module adjusts the power output according to the specifications of the motor and drives the motor to work, thereby realizing automatic opening and closing of the door body. The door body can be opened automatically after the program ends, making it convenient for users to take tableware. Before the program starts, the user places the tableware and starts the program, and the door body is automatically closed to prevent water from splashing to the outside during the washing process, thereby improving the user experience.

[0083] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A door opening assembly, characterized in that: It comprises a rotating part arranged on the door body, and the rotating part rotates around a fixed part arranged on the main body while rotating on its own, so as to realize the opening and closing of the door body.

2. The door opening assembly according to claim 1, characterized in that: The rotating part includes a first rotating component and a second rotating component, and the fixing part includes a first fixing component. The first rotating component drives the second rotating component to rotate around the first fixing component.

3. The door opening assembly according to claim 2, characterized in that: The first rotating component is provided with a first gear and a driving motor, the second rotating component is provided with a second gear, a first rotating shaft and a third gear, the first fixed component is provided with a fixed gear, the driving motor drives the first gear to rotate, the first gear is meshed with the second gear, the second gear is connected with the third gear through the first rotating shaft, and the fixed gear is meshed with the third gear.

4. The door opening assembly according to claim 3, characterized in that: A controller and a voltage-stabilizing driving module connected to the driving motor are also provided. The controller is used to receive a door opening or closing signal, send a control signal to the voltage-stabilizing driving protection module, and control the driving motor to work in forward and reverse directions.

5. The door opening assembly according to claim 4, characterized in that: The voltage-stabilizing driving protection module adjusts the power output according to the specifications of the driving motor, controls the operation of the driving motor, and realizes the smooth opening and closing of the door body.

6. The door opening assembly according to claim 3, characterized in that: The fixed gear is configured as a sector gear, and a side of the fixed gear close to the third gear is provided with gear teeth to cooperate with the third gear to complete the opening and closing of the door body.

7. The door opening assembly according to claim 2, characterized in that: The fixing portion further includes a second fixing component, one end of which is connected and fixed to the body, and the first fixing component is fixed to the other end of the second fixing component.

8. The door opening assembly according to claim 7, characterized in that: The second fixing assembly includes a first fixing shaft and a fixing plate, and the first fixing assembly is fixed to the fixing plate via the first fixing shaft.

9. The door opening assembly according to claim 8, characterized in that: The fixing plate is provided with at least one fixing hole, and the second fixing component is connected and fixed to the body through the fixing hole.

10. A household appliance, characterized in that: A door opening assembly as described in any one of claims 1 to 9 is used.

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