Actuator capable of achieving manual and electric door opening and closing

Abstract

The utility model discloses an actuator capable of realizing manual and electric door opening and closing, which comprises a base, a door opening and closing mechanism, a door opening and closing mechanism and a door opening and closing mechanism, the motor is fixedly mounted in the mounting cavity, and an output shaft of the motor is provided with a worm; the gear set comprises a plurality of transmission gears rotationally arranged in the mounting cavity, the worm is meshed with one of the transmission gears, and the transmission gears can be meshed with one another; the clutch is installed between two transmission gears of the gear set and used for achieving torque transmission of the two transmission gears and cutting off torque transmission; the angle detection device is mounted in the mounting cavity and is used for detecting the rotation angle of one transmission gear; and the output shaft is connected with the door shaft, an output gear is fixed on the output shaft, and the output gear is meshed with the transmission gear of the last stage. The utility model can realize seamless switching between manual operation and automatic operation, has the advantages of small manual resistance, high reliability and the like, and can be matched with a control system to realize the functions of trend induction, pinch prevention, overtime door closing and the like.

Description

Technical Field

[0001] The utility model relates to an actuator capable of realizing manual electric door opening and closing. Background Art

[0002] With the development of artificial intelligence technology, the automation of smart home appliances and smart cars has become a trend. Automatic door opening and closing is an important application. The current door opening and closing technology has problems such as incompatibility between automatic and manual, large manual resistance and easy damage. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a manual electric door opening and closing actuator which can realize seamless switching between manual and automatic, has the advantages of small manual resistance, high reliability, etc., and can cooperate with the control system to realize trend sensing, anti-pinch, timeout closing and other functions.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: an actuator capable of manually and electrically opening and closing a door, comprising:

[0005] A base, wherein a mounting cavity is disposed in the base;

[0006] A motor is fixedly mounted in the mounting cavity, and an output shaft of the motor is provided with a worm;

[0007] A gear set, comprising a plurality of transmission gears rotatably arranged in the mounting cavity, wherein the worm is meshed with one of the transmission gears, and the plurality of transmission gears can mesh with each other;

[0008] A clutch is installed between two of the transmission gears in the gear set, and is used to transmit torque between the two transmission gears or to cut off the transmission torque;

[0009] An angle detection device, installed in the installation cavity, for detecting the rotation angle of one of the transmission gears;

[0010] An output shaft is connected to the door shaft, an output gear is fixed on the output shaft, and the output gear is meshed with the transmission gear of the last stage.

[0011] The beneficial effects of the manual electric door opening and closing actuator achieved by the utility model are: manual and automatic switching can be achieved through the setting of the clutch; the transmission gear with self-locking characteristics can be disconnected from the door shaft movement through the clutch to achieve manual door opening and closing; part of the transmission gear can be disconnected from the door shaft movement through the clutch to reduce the resistance of manual door opening and closing; the angle detection device measures the angle of the control door, and can control the door body to move to a predetermined position, and when the door is not in the predetermined position, the automatic mode is started to return to the predetermined position; therefore, it has the advantages of: seamless manual and automatic switching, less resistance when manually opening and closing the door, high reliability, not easy to damage, and can automatically close the door when the user forgets to close the door. It has the trend sensing function, can judge the user's intention, and automatically complete the action.

[0012] Preferably, the transmission gear detected by the angle detection device is a detection transmission gear, the detection transmission gear is meshed with one of the transmission gears, a fixed shaft is installed at the center of the detection transmission gear, and the angle detection device is installed on the fixed shaft.

[0013] Preferably, the angle detection device is a resistive angle sensor.

[0014] Preferably, a wiring harness is installed in the installation cavity, and the angle detection device is connected to the wiring harness. The wiring harness is used to provide power supply and signal communication.

[0015] Preferably, a support plate for supporting cables is fixedly arranged in the installation cavity between the wiring harness and the angle detection device, and a stepped card slot is arranged on the support plate to comb the lines so that the lines in the base are neat.

[0016] Preferably, the clutch is installed on the back of the first-stage transmission gear meshing with the worm, the second-stage transmission gear is installed on the front of the first-stage transmission gear, the first-stage transmission gear is larger than the second-stage transmission gear, and the clutch, the first-stage transmission gear and the second-stage transmission gear are coaxially arranged.

[0017] Preferably, a groove is provided on the back of the first-stage transmission gear, and the clutch is installed in the groove. The embedded design reduces the thickness of the entire actuator capable of realizing manual electric door opening and closing.

[0018] Preferably, the base is an independently arranged base, or is directly mounted on a box body or a door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of this embodiment;

[0020] Figure 2 is a three-dimensional diagram of this embodiment;

[0021] Figure 3A three-dimensional diagram of the first-stage transmission gear and the second-stage transmission gear of the embodiment at a first angle;

[0022] Figure 4 A three-dimensional diagram showing the cooperation between the first-stage transmission gear and the second-stage transmission gear of this embodiment at a second angle;

[0023] Figure 5 A three-dimensional diagram of the first angle of the transmission gear and the angle detection device in this embodiment;

[0024] Figure 6 This is a stereoscopic diagram of the second angle detected by the transmission gear and the angle detection device in this embodiment. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] See also Figure 1 , 2 As shown, this embodiment discloses an actuator capable of realizing manual electric door opening and closing, comprising:

[0027] A base 1, wherein a mounting cavity 1a is provided in the base 1;

[0028] The motor 2 is fixedly mounted in the mounting cavity 1a, and the output shaft 6 of the motor 2 is provided with a worm 2a;

[0029] The gear set 3 includes a plurality of transmission gears rotatably arranged in the mounting cavity 1a, the worm 2a meshes with one of the transmission gears, and the plurality of transmission gears can mesh with each other;

[0030] The clutch 4 is installed between two transmission gears of the gear set 3, and is used to realize the transmission of torque between the two transmission gears and to cut off the transmission of torque;

[0031] The angle detection device 5 is installed in the installation cavity 1a to detect the rotation angle of one of the transmission gears. The transmission gear detected by the angle detection device 5 is the detection transmission gear 3c. The detection transmission gear 3c is meshed with one of the transmission gears. Figure 5 , 6 As shown, a fixed shaft 31 is installed at the center of the detection transmission gear 3c, and the angle detection device 5 is installed on the fixed shaft 31. In this embodiment, the angle detection device 5 is a resistive angle sensor;

[0032] The output shaft 6 is connected to the door shaft, and an output gear 6a is fixed on the output shaft 6. The output gear 6a is meshed with the transmission gear of the last stage.

[0033] A wiring harness 7 is also installed in the installation cavity 1a, and the angle detection device 5 is connected to the wiring harness 7. Figure 2 As shown, a support plate 8 for supporting cables is fixedly provided in the installation cavity 1a between the wire harness 7 and the angle detection device 5, and a stepped slot 8a is provided on the support plate 8.

[0034] like Figure 3 and Figure 4 As shown, the clutch 4 is mounted on the back of the first-stage transmission gear 3a meshing with the worm 2a, and the second-stage transmission gear 3b is mounted on the front of the first-stage transmission gear 3a. The first-stage transmission gear 3a is larger than the second-stage transmission gear 3b. The clutch 4, the first-stage transmission gear 3a, and the second-stage transmission gear 3b are coaxially arranged. More specifically, a groove 32 is arranged on the back of the first-stage transmission gear 3a, and the clutch 4 is mounted in the groove 32.

[0035] When the door is opened automatically, the motor 2 rotates, and at the same time (or in advance), the clutch 4 works, so that the first-stage transmission gear 3a and the second-stage transmission gear 3b are meshed and connected. At this time, the worm 2a at the end of the output shaft of the motor 2 drives the remaining transmission gears to operate through the first-stage transmission gear 3a and the second-stage transmission gear 3b, and finally transmits it to the output shaft 6, and the output shaft 6 outputs the torque. Since the output shaft 6 is directly connected and fixed to the door shaft, it will drive the door shaft to rotate. During the rotation of multiple transmission gears, since the detection transmission gear 3c is meshed with one of the transmission gears, the detection transmission gear 3c will also rotate with the gear set 3, and the angle detection device 5 detects the rotation angle. When the preset value is reached, the clutch 4 disconnects the first-stage transmission gear 3a and the second-stage transmission gear 3b; the motor 2 stops working, the output shaft 6 stops rotating, and the automatic door opening and closing action is completed. When the gear set 3 moves, the detection transmission gear 3c rotates together, and the angle detection device 5 detects the corresponding rotation angle.

[0036] When the door is opened and closed manually, the clutch 4 does not work, the first-stage transmission gear 3a and the second-stage transmission gear 3b are disengaged, and the torque cannot be transmitted. The gears above the first-stage transmission gear 3a and the motor 2 do not rotate; the second-stage transmission gear 3b and the lower gears move with the door body, and the manual door opening and closing action is completed.

[0037] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An actuator capable of realizing manual electric door opening and closing, characterized in that: include: A base (1), wherein a mounting cavity (1a) is provided in the base (1); A motor (2) is fixedly mounted in the mounting cavity (1a); an output shaft (6) of the motor (2) is provided with a worm (2a); The gear set (3) comprises a plurality of transmission gears rotatably arranged in the mounting cavity (1a), the worm (2a) meshing with one of the transmission gears, and the plurality of transmission gears being capable of meshing with each other; A clutch (4) is installed between two of the transmission gears of the gear set (3) and is used to transmit torque between the two transmission gears and to cut off the transmission of torque; An angle detection device (5) is installed in the installation cavity (1a) and is used to detect the rotation angle of one of the transmission gears; An output shaft (6) is connected to the door shaft, an output gear (6a) is fixed on the output shaft (6), and the output gear (6a) is meshed with the transmission gear of the last stage.

2. The actuator capable of realizing manual electric door opening and closing according to claim 1, characterized in that: The transmission gear detected by the angle detection device (5) is a detection transmission gear (3c), the detection transmission gear (3c) is meshed with one of the transmission gears, a fixed shaft (31) is installed at the center of the detection transmission gear (3c), and the angle detection device (5) is installed on the fixed shaft (31).

3. The manual electric door opening and closing actuator according to claim 1 or 2, characterized in that: The angle detection device (5) is a resistive angle sensor.

4. The actuator capable of realizing manual electric door opening and closing according to claim 1, characterized in that: A wiring harness (7) is installed in the installation cavity (1a), and the angle detection device (5) is connected to the wiring harness (7).

5. The actuator capable of realizing manual electric door opening and closing according to claim 4 is characterized in that: A support plate (8) for supporting cables is fixedly arranged in the installation cavity (1a) between the wiring harness (7) and the angle detection device (5), and a stepped slot (8a) is arranged on the support plate (8).

6. The actuator capable of realizing manual electric door opening and closing according to claim 1, characterized in that: The clutch (4) is mounted on the back side of a first-stage transmission gear (3a) meshing with the worm (2a), and the second-stage transmission gear (3b) is mounted on the front side of the first-stage transmission gear (3a); the first-stage transmission gear (3a) is larger than the second-stage transmission gear (3b); and the clutch (4), the first-stage transmission gear (3a), and the second-stage transmission gear (3b) are coaxially arranged.

7. The actuator capable of realizing manual electric door opening and closing according to claim 6, characterized in that: A groove (32) is provided on the back side of the first-stage transmission gear (3a), and the clutch (4) is installed in the groove (32).

8. The actuator capable of realizing manual electric door opening and closing according to claim 1, characterized in that: The base (1) is an independently arranged base, or is directly mounted on a box body or a door body.

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