An electric door opening structure applied to an intelligent cooking device

Abstract

An electric door opening structure applied to an intelligent cooking device, comprising a cabin shell and a cabin cover, a door closing position is arranged outside the cabin shell, a first driving assembly and a second driving assembly are installed inside the cabin shell, the first driving assembly comprises a first base, a first swing arm and a motor module, the first base is fixed on the cabin shell, the motor module is installed on the first base, one end of the first swing arm is fixedly sleeved on the output shaft of the motor module, the second driving assembly comprises a second base and a second swing arm, the second base is fixed on the cabin shell, one end of the second swing arm is hingedly connected to the second base through a swing arm shaft, the first door closing position is provided with a first through hole and a second through hole, the other end of the first swing arm extends out through the first through hole and is connected to the cabin cover, the other end of the second swing arm extends out through the second through hole and is connected to the cabin cover. The cabin cover is supported and driven by the first driving assembly and the second driving assembly, effectively preventing the cabin cover from shaking during opening and closing, and running more smoothly and reliably.

Description

Technical Field

[0001] This utility model relates to the field of cooking equipment technology, and specifically to an electric door opening structure applied to intelligent cooking equipment. Background Technology

[0002] With the improvement of people's living standards and the popularization of smart home concepts, cooking machines, as intelligent cooking devices that can automatically perform multiple cooking functions such as flipping, stir-frying, stewing, and pan-frying, have gradually become common equipment in home and commercial kitchens because they can simplify cooking operations and save time.

[0003] For example, Chinese utility model patent CN216984561U discloses a cooking machine that includes a base and a cooking chamber. The cooking chamber consists of a shell assembly and a cover assembly for closing the shell assembly. The cover opening mechanism relies on a mechanical structure, where a spring between the shell assembly and the cover assembly provides the opening power. A button pushes the connecting plate to unlock, disengaging the locking slot and ultimately allowing the cover to flip up. While this mechanical opening method is simple and low-cost, it relies on the physical properties of components such as the spring and elastic elements. After prolonged use, component aging can easily lead to opening failure or unlocking jamming. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides an electric door opening structure for use in intelligent cooking equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An electric door opening structure for use in smart cooking equipment includes a housing and a cover, wherein a door position is provided on the outside of the housing, characterized in that: The interior of the cabin is equipped with a first drive assembly and a second drive assembly distributed in a horizontal direction. The first drive assembly includes a first base, a first swing arm and a motor module. The first base is fixed to the inner wall of the cabin, the motor module is mounted on the first base, and one end of the first swing arm is fixedly sleeved on the output shaft of the motor module. The second drive assembly includes a second base and a second swing arm. The second base is fixed to the inner wall of the cabin, and one end of the second swing arm is hinged to the second base via a swing arm pivot. The closing position is provided with a first through-outlet and a second through-outlet that connect to the interior of the cabin. The other end of the first swing arm extends through the first through-outlet and is connected to the hatch cover, and the other end of the second swing arm extends through the second through-outlet and is connected to the hatch cover.

[0006] In this utility model, the motor module is connected to a control module, which is configured to control the motor module to provide a holding torque to keep the hatch suspended when the hatch is opened to a specific angle. The holding torque is generated by a stable current provided by the control module to the motor module.

[0007] In the utility model, the cabin has a first mounting base and a second mounting base protruding inside, wherein the first base is mounted on the first mounting base by a first bolt, and the second base is mounted on the second mounting base by a second bolt.

[0008] In the utility model, a first positioning part protrudes from the rear end of the first mounting base, and a first positioning hole is provided on the first base, into which the first positioning part is inserted. Or / and, the rear end of the second mounting base has a protrusion of a second positioning part, and the second base has a corresponding second positioning hole, into which the second positioning part is inserted.

[0009] In the utility model, both the first positioning part and the second positioning part are cross-shaped protrusions, which extend horizontally backward. The first positioning hole and the second positioning hole are cross-shaped hole structures adapted to the cross-shaped protrusions.

[0010] In the utility model, the first base is provided with a first mounting shaft hole, the output shaft of the motor module is provided through the first mounting shaft hole, the output shaft is provided with a D-shaped section, the first swing arm is provided with a D-shaped hole that matches the D-shaped section, and the D-shaped section is provided with a first retaining spring to prevent the first swing arm from slipping off.

[0011] In the utility model, the second base is provided with a second mounting shaft hole, the second swing arm is provided with a second mating through hole corresponding to the second mounting shaft hole, the swing arm shaft is inserted into the corresponding second mounting shaft hole and the second mating through hole, and the two ends of the swing arm shaft are respectively fitted with second retaining springs.

[0012] In the utility model, the hatch is provided with a first positioning connecting groove and a second positioning connecting groove, the other end of the first swing arm is provided with a first mating part that is positioned and embedded in the first positioning connecting groove and fixed by a third bolt, and the other end of the second swing arm is provided with a second mating part that is positioned and embedded in the second positioning connecting groove and fixed by a fourth bolt.

[0013] In the utility model, a closing monitoring switch is provided inside the cabin to detect when the hatch is closed in place.

[0014] In this utility model, the motor module is a stepper motor with an encoder; and / or, an opening detection switch is also provided inside the hatch. When the hatch is opened to a specific angle, the first swing arm triggers the opening detection switch and sends a signal to the control module that the hatch is fully opened.

[0015] The beneficial effects of this invention are as follows: This invention effectively prevents the hatch from shaking during opening and closing by using a first drive assembly and a second drive assembly to jointly support and drive the hatch, resulting in smoother and more reliable operation. Furthermore, by precisely controlling the current of the motor module through the control module, the torque generated by the motor is used to balance the weight of the hatch, achieving an electric hovering function without the need for an additional mechanical locking structure. This results in a simple structure, low cost, and a good user experience. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 A 3D view of the electrically operated hatch structure when it is open; Figure 2 A perspective view of the hatch with the rear shell removed when the electrically operated hatch structure is opened; Figure 3 A perspective view of the electrically operated hatch structure with the front and rear shells removed when closed; Figure 4 An exploded view of the forehull and hatch; Figure 5 A schematic diagram showing the combination of the first drive component, the second drive component, and the front shell; Figure 6 A schematic diagram of the combination of the first drive assembly, the second drive assembly, and the hatch; Figure 7 This is a perspective view of the electrically operated hatch structure when closed. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] It should be noted that if any directional indication is involved in the embodiments of this utility model (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.), then the directional indication is only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.

[0019] Furthermore, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection using welding, a detachable connection using bolts, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0021] Reference Figure 1-7 This embodiment discloses an electric door opening structure for use in smart cooking equipment, including a housing 1 and a cover 2. The housing 1 has a recessed closing position 11 on its outside. When the cover 2 is closed, its edge is precisely embedded in the closing position 11, thus forming a smooth appearance.

[0022] Furthermore, the interior of the hatch 1 is equipped with a first drive assembly 3 and a second drive assembly 4 distributed in a horizontal direction. Through the two-point cooperation of the first drive assembly 3 driving and the second drive assembly 4 passively supporting, the hatch cover 2 can move smoothly.

[0023] The first drive assembly 3 is an active drive component, comprising a first base 31, a first swing arm 32, and a motor module 33. The first base 31 is fixed to the inner wall of the hull 1, and the motor module 33 is mounted on the first base 31. One end of the first swing arm 32 is fixedly sleeved on the output shaft of the motor module 33. When the motor module 33 is working, it can drive the first swing arm 32 to swing around the output shaft, so that the motor module 33 can accurately control the swing angle of the first swing arm 32, thereby driving the hood 2 to perform opening and closing actions.

[0024] The second drive assembly 4 serves as the driven support component. It includes a second base 41, a second swing arm 42, and a swing arm pivot 43. The second base 41 is also fixed to the inner wall of the hatch 1, and one end of the second swing arm 42 is hinged to the second base 41 via the swing arm pivot 43. Furthermore, to ensure synchronized movement of the first swing arm 32 and the second swing arm 42 and to avoid generating additional torsional stress on the hatch 2, the axis of the swing arm pivot 43 is coaxial with the axis of the output pivot of the motor module 33.

[0025] Furthermore, the closing position 11 is provided with a first through outlet 12 and a second through outlet 13 that connects to the interior of the cabin 1. The other end of the first swing arm 32 extends through the first through outlet 12 and is connected to the hatch cover 2. The other end of the second swing arm 42 extends through the second through outlet 13 and is connected to the hatch cover 2, thereby realizing the linkage between the first drive assembly 3 and the second drive assembly 4 and the hatch cover 2.

[0026] Furthermore, the motor module 33 is connected to a control module. This control module is configured to provide a holding torque to keep the lid 2 suspended when it is opened to a specific angle. This holding torque is generated by a stable current supplied by the control module to the motor module 33. The control module can be the controller of a smart cooking device. Its program is set so that upon receiving a user's "open door" command, it drives the motor module 33 to swing the first swing arm 32 upwards, thereby opening the lid 2. During this process, the second swing arm 42 also swings upwards synchronously with the first swing arm 32 to support the lid 2. When the lid 2 is opened to a preset angle (e.g., 90 to 150 degrees), the control module no longer completely cuts off the motor power but continuously outputs a constant holding current. This current causes the motor module 33 to generate a torque that is opposite in direction and equal in magnitude to the gravitational torque of the lid 2, thus stably holding the lid 2 in this suspended position, allowing the user to retrieve or place food. After the operation is complete, the user can press the door control button to have the control module reverse the motor module 33, causing the lid 2 to close smoothly. The control module is not shown in the attached diagram.

[0027] In a preferred embodiment, the cabin 1 has a first mounting seat 14 and a second mounting seat 15 protruding inside. The first base 31 is mounted on the first mounting seat 14 by a first bolt, and the second base 41 is mounted on the second mounting seat 15 by a second bolt. The first mounting seat 14 and the second mounting seat 15 are integrally formed with the front shell of the cabin 1, which improves the stability of the structure and the assembly accuracy. Furthermore, the cabin 1 includes a bottom shell, a front shell, and a rear shell. The bottom shell, the front shell, and the rear shell are connected by fasteners to form a complete cabin 1. The closing position 11 is located on the front side of the front shell. The first through-hole 12 and the second through-hole 13 are provided through the front shell to facilitate the extension of the ends of the first swing arm 32 and the second swing arm 42 and their connection with the hatch cover 2. The first mounting seat 14 and the second mounting seat 15 are integrally formed and protrude on the inner wall of the front shell.

[0028] In a preferred embodiment, the rear end of the first mounting base 14 has a protruding first positioning part 141, and the first base 31 has a first positioning hole 311. The first positioning part 141 is inserted into the first positioning hole 311 to achieve initial positioning between the first base 31 and the first mounting base 14. Then, the first base 31 and the first mounting base 14 are connected by a first bolt to ensure the quality of their assembly. Similarly, the rear end of the second mounting base 15 has a protruding second positioning part 151, and the second base 41 has a corresponding second positioning hole 411. The second positioning part 151 is inserted into the second positioning hole 411 to achieve initial positioning between the second base 41 and the second mounting base 15. Then, the second base 41 and the second mounting base 15 are connected by a second bolt to ensure the quality of their assembly. In this embodiment, both the first positioning part 141 and the second positioning part 151 are cross-shaped protrusions. These cross-shaped protrusions extend horizontally backward. The first positioning hole 311 and the second positioning hole 411 are cross-shaped hole structures adapted to the cross-shaped protrusions. This structural design results in a large contact area between the positioning part and the positioning hole, ensuring a tight fit and effectively preventing rotation or displacement of the first base 31 and the second base 41 during installation, thus ensuring the assembly accuracy of the swing arm assembly. Simultaneously, the cross-shaped structure has excellent torsional resistance, capable of withstanding radial and axial stresses generated during swing arm movement, thereby improving the overall stability and durability of the mechanism.

[0029] In this embodiment, the first base 31 is provided with a first mounting shaft hole, through which the output shaft of the motor module 33 passes. The output shaft is provided with a D-shaped section 331, and the first swing arm 32 is provided with a D-shaped hole that matches the D-shaped section 331. The two are inserted and fitted together to achieve circumferential fixation and ensure transmission. Furthermore, the D-shaped section 331 is provided with a first retaining spring 34 to prevent the first swing arm 32 from slipping. A first washer 35 is provided between the first retaining spring 34 and the first swing arm 32, and the first washer 35 serves to buffer and reduce friction.

[0030] In this embodiment, the second base 41 is provided with a second mounting shaft hole, and the second swing arm 42 is provided with a second mating through hole corresponding to the second mounting shaft hole. The swing arm shaft 43 is inserted into the corresponding second mounting shaft hole and the second mating through hole. Second retaining rings 44 are respectively fitted at both ends of the swing arm shaft 43, thereby engaging the second base 41 and the second swing arm 42 onto the swing arm shaft 43 and restricting their axial movement. Two second washers 45 are fitted on the swing arm shaft 43, with the two second washers 45 located on both sides of the second swing arm 42 to reduce friction.

[0031] In this embodiment, the hatch 2 is provided with a first positioning connection groove 21 and a second positioning connection groove 22. The other end of the first swing arm 32 is provided with a first mating part 321 that is positioned and embedded in the first positioning connection groove 21 and fixed by a third bolt. The other end of the second swing arm 42 is provided with a second mating part 421 that is positioned and embedded in the second positioning connection groove 22 and fixed by a fourth bolt. This makes the other end of the first swing arm 32 and the other end of the second swing arm 42 fixed on the hatch 2, thereby realizing a reliable connection between the first swing arm 32, the second swing arm 42 and the hatch 2.

[0032] In this embodiment, a closing monitoring switch 5 is provided inside the hatch 1 to detect when the hatch cover 2 is closed. The closing monitoring switch 5 is a micro switch. When the hatch cover 2 is closed, the first swing arm 32 presses against the monitoring press end of the closing monitoring switch 5. At this time, the closing monitoring switch 5 is triggered by the pressure and sends this status signal to the control module, thereby confirming that the hatch cover 2 has been safely closed. When the hatch cover 2 is opened, the first swing arm 32 disengages from the monitoring press end, the closing monitoring switch 5 resets, the signal status changes, and the control module recognizes that the hatch cover 2 is in the open state.

[0033] In this embodiment, the motor module 33 can be a stepper motor with an encoder, allowing the control module to know the angle of the output shaft through encoder feedback. A "fully opened" angle threshold is then set by the program; when this threshold is reached, the hatch 2 is determined to be fully opened. Alternatively, in other embodiments, an opening detection switch is also provided inside the hatch 1. This opening detection switch can be a microswitch. When the hatch 2 is opened to a specific angle, the first swing arm 32 triggers the opening detection switch, sending a signal to the control module that the hatch 2 is fully opened. Upon receiving this signal, the control module controls the motor module 33 to enter a hovering state providing maintaining torque. The opening detection switch is not shown in the accompanying drawings. Alternatively, both the encoder-equipped motor and the opening detection switch can be used simultaneously, working together to achieve redundant detection and a higher level of safety control, ensuring accurate identification of the hatch 2's opening and closing actions.

[0034] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. An electric door opening structure for use in intelligent cooking equipment, comprising a housing (1) and a cover (2), wherein the housing (1) is provided with a door position (11) on its exterior, characterized in that: The interior of the cabin (1) is equipped with a first drive assembly (3) and a second drive assembly (4) distributed in a horizontal direction. The first drive assembly (3) includes a first base (31), a first swing arm (32) and a motor module (33). The first base (31) is fixed on the inner wall of the cabin (1). The motor module (33) is mounted on the first base (31). One end of the first swing arm (32) is fixedly sleeved on the output shaft of the motor module (33). The second drive assembly (4) includes a second base (41) and a second swing arm (42). The second base (41) is fixed to the inner wall of the cabin (1), and one end of the second swing arm (42) is hinged to the second base (41) through a swing arm pivot (43). The closing position (11) is provided with a first through-hole (12) and a second through-hole (13) that connect to the interior of the cabin (1). The other end of the first swing arm (32) extends through the first through-hole (12) and is connected to the hatch cover (2). The other end of the second swing arm (42) extends through the second through-hole (13) and is connected to the hatch cover (2).

2. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The motor module (33) is connected to a control module configured to control the motor module (33) to provide a holding torque to keep the hatch (2) hovering when the hatch (2) is opened to a specific angle. The holding torque is generated by a stable current provided by the control module to the motor module (33).

3. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The cabin (1) has a first mounting seat (14) and a second mounting seat (15) protruding inside. The first base (31) is mounted on the first mounting seat (14) by a first bolt, and the second base (41) is mounted on the second mounting seat (15) by a second bolt.

4. The electric door opening structure applied to an intelligent cooking device according to claim 3, characterized in that: The first mounting base (14) has a first positioning part (141) protruding from its rear end, and the first base (31) has a first positioning hole (311) and the first positioning part (141) is inserted into the first positioning hole (311); Or / and, the rear end of the second mounting base (15) has a second positioning part (151) protruding, and the second base (41) has a corresponding second positioning hole (411), and the second positioning part (151) is inserted into the second positioning hole (411).

5. The electric door opening structure applied to an intelligent cooking device according to claim 4, characterized in that: The first positioning part (141) and the second positioning part (151) are both cross-shaped protrusions. The cross-shaped protrusions extend horizontally backward. The first positioning hole (311) and the second positioning hole (411) are cross-shaped hole structures adapted to the cross-shaped protrusions.

6. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The first base (31) is provided with a first mounting shaft hole, the output shaft of the motor module (33) is provided through the first mounting shaft hole, the output shaft is provided with a D-shaped section (331), the first swing arm (32) is provided with a D-shaped hole that matches the D-shaped section (331), and the D-shaped section (331) is provided with a first retaining ring (34) to prevent the first swing arm (32) from slipping.

7. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The second base (41) is provided with a second mounting shaft hole, and the second swing arm (42) is provided with a second mating through hole corresponding to the second mounting shaft hole. The swing arm shaft (43) is inserted into the corresponding second mounting shaft hole and the second mating through hole. The two ends of the swing arm shaft (43) are respectively fitted with second retaining rings (44).

8. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The hatch (2) is provided with a first positioning connection groove (21) and a second positioning connection groove (22). The other end of the first swing arm (32) is provided with a first mating part (321) that is positioned and embedded in the first positioning connection groove (21) and fixed by a third bolt. The other end of the second swing arm (42) is provided with a second mating part (421) that is positioned and embedded in the second positioning connection groove (22) and fixed by a fourth bolt.

9. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The cabin (1) is equipped with a shutdown monitoring switch (5) for detecting when the hatch (2) is closed.

10. The electric door opening structure applied to an intelligent cooking device according to claim 1, characterized in that: The motor module (33) is a stepper motor with an encoder; and / or, the hatch (1) is also provided with an opening detection switch. When the hatch cover (2) is opened to a specific angle, the first swing arm (32) triggers the opening detection switch and sends a signal to the control module that the hatch cover (2) is in place.

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