Structure of an electrical automatic door opening and closing actuator

Abstract

This utility model relates to the field of household appliance technology, specifically to the structure of an automatic door opening / closing actuator, comprising: a cabinet and a door opening / closing actuator. The actuator includes a transmission component, a drive component for driving the transmission component, and a lever component located at the end of the transmission component. The cabinet includes a cabinet door, one side of which is rotatably mounted on the cabinet, and the other end of the lever component is rotatably connected to the cabinet door. The lever component includes a transition link rotatably connected to the drive component, an intermediate link rotatably connected to the other end of the transition link, and an execution link rotatably connected to the middle of the intermediate link. The other end of the intermediate link is rotatably mounted on the cabinet, and the other end of the execution link is rotatably connected to the cabinet door. The lever component reduces the force required to open and close the door, allowing for the use of smaller, lower-power devices to achieve the opening and closing action, reducing production and user costs, and further reducing the size of the actuator to free up more space inside the appliance.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and specifically relates to the structure of an automatic door opening and closing actuator for electrical appliances. Background Technology

[0002] With economic development, more and more household appliances need to add automatic door opening and closing functions to meet the needs of automation, intelligence, and improved customer convenience.

[0003] However, many current door opening and closing actuators are complex in structure and high in cost, limiting their widespread application. For example, Chinese patent CN106761149 discloses an actuator with automatic door opening and closing function, which uses a motor to drive a reduction gear mechanism and a clutch gear device, transmitting the driving force to a gear plate. Automatic door opening and closing is then achieved through the cooperation of a locking structure at the front of the gear plate and a door lock. This patent directly combines the automatic door opening and closing device with the door lock, resulting in a very complex structure. However, this structure is not suitable for all types of household appliances. Furthermore, to save internal space, door opening and closing actuators are generally installed near the cabinet door, requiring a large torque to achieve the opening and closing action, necessitating a high-power drive device.

[0004] Therefore, it is necessary to design an electrical automatic door opening and closing actuator structure that is simple in structure, low in cost, and has a wide range of applications. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, this utility model provides an automatic door opening and closing actuator structure for electrical appliances. The structure is reasonable and simple. The actuator can realize the automatic door opening and closing function with a small torque and has a wide range of applications, and can be adapted to most electrical appliances on the market.

[0006] Technical solution: In order to achieve the above objectives, this utility model provides an automatic door opening and closing actuator structure, including: a cabinet and a door opening and closing actuator. The door opening and closing actuator includes a transmission component, a drive component for driving the transmission component, and a lever component disposed at the end of the transmission component. The cabinet includes a cabinet door, one side of which is rotatably mounted on the cabinet. The other end of the lever component is rotatably connected to the cabinet door. The lever assembly includes a transition link rotatably connected to the drive assembly, an intermediate link rotatably connected to the other end of the transition link, and an actuation link rotatably connected to the middle of the intermediate link. The other end of the intermediate link is rotatably mounted on the cabinet body, and the other end of the actuation link is rotatably connected to the cabinet door. The drive assembly transmits torque to the lever assembly through a transmission assembly. Through the coordinated action of the transition link, intermediate link, and actuation link, the door opening and closing action can be achieved with relatively small force.

[0007] Furthermore, a set of hinge arms is provided on the inner side of the cabinet door, and a hinge joint is provided at the end of the hinge arm. A hinge seat is provided on the cabinet body. The cabinet door is hinged to the cabinet body through the cooperation of the hinge joint and the hinge seat. A door hinge is provided on the hinge joint, and the door hinge is connected to the actuating linkage. By designing a door hinge and hinge arms on the cabinet door, torque can be transmitted to both ends of the cabinet door to realize the opening and closing of the door with a single drive mechanism, which greatly simplifies the structure and saves costs.

[0008] Furthermore, the transmission assembly includes a guide rail mounting bracket, a linear guide rail mounted on the guide rail mounting bracket, a slider on the linear guide rail, and a toothed plate on the upper part of the slider.

[0009] Furthermore, the toothed plate is provided with a bushing to ensure that the connection between the transition connecting rod and the toothed plate can rotate smoothly.

[0010] Furthermore, the drive assembly includes a drive motor and a drive gear, the drive gear being coaxially connected to the output shaft of the drive motor, and the drive gear meshing with a gear plate.

[0011] Through the above scheme, the drive gear meshes with the toothed plate, transmitting power to the toothed plate. The toothed plate then drives the lever assembly, which in turn acts on the door hinge to open or close the cabinet door.

[0012] Furthermore, the cabinet interior is equipped with a mounting plate, on which a second hinge seat is mounted. The transition connecting rod is hinged to the second hinge seat, and the guide rail mounting bracket is mounted on the mounting plate. The second hinge seat serves as a fulcrum for the intermediate connecting rod, creating a lever effect.

[0013] Furthermore, the mounting plate is also provided with a motor bracket, the drive motor is mounted on the motor bracket, the drive gear is rotatably mounted on the upper part of the motor bracket, and the motor bracket is located on one side of the guide rail mounting bracket.

[0014] Furthermore, the outer surface of the drive motor is coated with thermally conductive potting compound. This thermally conductive potting compound reduces noise and improves corrosion resistance.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects compared with the prior art: 1. This utility model sets up a lever assembly between the transmission component and the cabinet door. Through the action of the lever assembly, the force required to open and close the door is reduced. The opening and closing action can be achieved using a smaller and less powerful drive device, which reduces production costs and user operating costs. At the same time, it further reduces the size of the actuator, freeing up more space inside the electrical appliance.

[0016] 2. This utility model provides an automatic door opening and closing actuator structure for electrical appliances. It only requires adding a hinge arm to the cabinet door and installing a door hinge on the hinge arm. The door opening and closing actuator structure is installed inside the cabinet. The actuator transmits torque to the door hinge, which can then drive the hinge arms on both sides to open or close the cabinet door. Only one set of actuators is needed to realize the opening and closing of the door, which simplifies the structure, saves costs, and can be used in existing product structures with minor modifications. It is suitable for the vast majority of electrical appliances.

[0017] 3. In addition, thermally conductive potting compound is applied to the outer surface of the drive motor to reduce noise, improve corrosion resistance, and extend its service life. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an automatic door opening and closing actuator according to the present invention; Figure 2 This is a schematic diagram of the assembly of the cabinet door and the cabinet body according to the present invention; Figure 3 This is a structural diagram of the automatic door opening and closing actuator structure described in this utility model (cabinet omitted).

[0019] In the diagram: 1-cabinet body, 11-cabinet door, 111-hinged arm, 12-hinged base one, 13-mounting plate, 14-hinged base two, 15-motor bracket; 2-Transmission assembly, 21-Guide rail mounting bracket, 22-Linear guide rail, 23-Slider, 24-Gear plate, 241-Shaft sleeve; 3-Drive assembly, 31-Drive motor, 32-Drive gear; 4-Lever assembly, 41-Transition link, 42-Intermediate link, 43-Actuating link; 5-Door hinge. Detailed Implementation

[0020] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] like Figures 1-3 As shown, an automatic door opening and closing actuator structure includes: a cabinet 1 and a door opening and closing actuator. The door opening and closing actuator includes a transmission component 2, a drive component 3 for driving the transmission component 2, and a lever component 4 disposed at the end of the transmission component 2. The cabinet 1 includes a cabinet door 11. One side of the cabinet door 11 is rotatably mounted on the cabinet 1, and the other end of the lever component 4 is rotatably connected to the cabinet door 11. The lever assembly 4 includes a transition link 41 rotatably connected to the drive assembly 3, an intermediate link 42 rotatably connected to the other end of the transition link 41, and an execution link 43 rotatably connected to the middle of the intermediate link 42. The other end of the intermediate link 42 is rotatably mounted on the cabinet 1, and the other end of the execution link 43 is rotatably connected to the cabinet door 11.

[0022] Specifically, a set of hinge arms is provided on the inner side of the cabinet door 11, and a hinge joint is provided at the end of the hinge arm. A hinge seat 12 is provided on the cabinet body 1. The cabinet door 11 is hinged to the cabinet body 1 through the hinge joint and the hinge seat 12. A door hinge 5 is provided on the hinge joint, and the door hinge 5 is connected to the actuating link 43.

[0023] Specifically, the transmission assembly 2 includes a guide rail mounting bracket 21, a linear guide rail 22 mounted on the guide rail mounting bracket 21, a slider 23 mounted on the linear guide rail 22, and a toothed plate 24 mounted on the upper part of the slider 23.

[0024] Specifically, the toothed plate 24 is provided with a bushing, and the transition connecting rod 41 is connected to the toothed plate 24 through the bushing.

[0025] Preferably, the drive assembly 3 includes a drive motor 31 and a drive gear 32, the drive gear 32 being coaxially connected to the output shaft of the drive motor 31, and the drive gear 32 meshing with the gear plate 24.

[0026] Specifically, the cabinet 1 also includes a mounting plate 13, on which a second hinge seat 14 is mounted. The transition connecting rod 41 is hinged to the second hinge seat 14, and the guide rail mounting bracket 21 is mounted on the mounting plate 13. The second hinge seat 14 serves as a fulcrum in the lever assembly 4. Figure 2 Taking the situation shown as an example, when the door needs to be opened, the toothed plate 24 moves towards the cabinet door 11 under the action of the drive component 3, and then the intermediate connecting rod 42 rotates clockwise around the hinge seat 14, and the actuating connecting rod 43 acts on the cabinet door 11 to open it.

[0027] Specifically, the mounting plate 13 is also provided with a motor bracket 15, the drive motor 31 is mounted on the motor bracket 15, the drive gear 32 is rotatably mounted on the upper part of the motor bracket 15, and the motor bracket 15 is located on one side of the guide rail mounting bracket 21.

[0028] In addition, the outer surface of the drive motor 31 is coated with thermally conductive potting compound. It should be noted that achieving noise reduction and corrosion resistance for the drive motor 21 is not limited to applying thermally conductive potting compound to its surface; physical means, such as adding sound insulation cotton or applying anti-corrosion paint, can also be used.

[0029] The working principle of the automatic door opening and closing actuator structure provided by this utility model is as follows: When the door needs to be opened or closed, the user only needs to press the switch to control the drive motor 31 to control the forward and reverse rotation of the drive motor 31. The drive gear 32 acts on the toothed plate 24, and the toothed plate 24 reciprocates on the linear guide rail 22, thereby driving the lever assembly 4 to move. The end of the actuator 43 acts on the door hinge 5, and the door hinge 5 causes the hinge joints 5 on both sides to rotate around the hinge seat 12, thereby realizing the opening and closing operation of the cabinet door 11.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. An automatic door operator structure for an electric appliance, comprising: The cabinet (1) and the door opening / closing actuator are characterized in that the door opening / closing actuator includes a transmission assembly (2), a drive assembly (3) for driving the transmission assembly (2), and a lever assembly (4) disposed at the end of the transmission assembly (2). The cabinet (1) includes a cabinet door (11), one side of the cabinet door (11) is rotatably mounted on the cabinet (1), and the other end of the lever assembly (4) is rotatably connected to the cabinet door (11). The lever assembly (4) includes a transition link (41) rotatably connected to the drive assembly (3), an intermediate link (42) rotatably connected to the other end of the transition link (41), and an execution link (43) rotatably connected to the middle of the intermediate link (42). The other end of the intermediate link (42) is rotatably mounted on the cabinet (1), and the other end of the execution link (43) is rotatably connected to the cabinet door (11).

2. The automatic door operator structure of claim 1, wherein A set of hinge arms (111) is provided on the inner side of the cabinet door (11). A hinge joint is provided at the end of the hinge arm (111). A hinge seat (12) is provided on the cabinet body (1). The cabinet door (11) is hinged to the cabinet body (1) through the hinge joint and the hinge seat (12). A door hinge (5) is provided on the hinge joint. The door hinge (5) is connected to the actuator (43).

3. The automatic door operator structure of claim 1, wherein The transmission assembly (2) includes a guide rail mounting bracket (21), a linear guide rail (22) mounted on the guide rail mounting bracket (21), a slider (23) on the linear guide rail (22), and a toothed plate (24) on the upper part of the slider (23).

4. The automatic door operator structure of claim 3, wherein, The toothed plate (24) is provided with a bushing (241), and the transition connecting rod (41) is connected to the toothed plate (24) through the bushing (241).

5. The automatic door operator structure of claim 4, wherein, The drive assembly (3) includes a drive motor (31) and a drive gear (32). The drive gear (32) is coaxially connected to the output shaft of the drive motor (31), and the drive gear (32) meshes with the gear plate (24).

6. The structure of an automatic door opening / closing actuator according to claim 5, characterized in that, The cabinet (1) is also provided with an installation plate (13), and the installation plate (13) is provided with a hinge seat (14). The transition link (41) is hinged to the hinge seat (14), and the guide rail mounting bracket (21) is provided on the installation plate (13).

7. The automatic door operator structure of claim 6, wherein, The mounting plate (13) is also provided with a motor bracket (15), the drive motor (31) is mounted on the motor bracket (15), the drive gear (32) is rotatably mounted on the upper part of the motor bracket (15), and the motor bracket (15) is located on one side of the guide rail mounting bracket (21).

8. The automatic door operator structure of claim 5, wherein, The outer surface of the drive motor (31) is coated with thermally conductive potting compound.

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