Electric side door opening actuator

Abstract

The utility model relates to the technical field of electric side door opening actuators, in particular to an electric side door opening actuator. A controller is connected with a brushless motor, a worm is arranged at the front end of the brushless motor and connected with an electric driving unit in the brushless motor, the front end of the worm is connected with an executing mechanism, the executing mechanism comprises a gear, a lead screw and a sliding block, the gear is connected to one end of the lead screw and meshed with the worm, the sliding block is arranged on the lead screw in a sleeving mode, and a lead screw nut is arranged on the sliding block. The upper end of the sliding block is fixedly connected with a push rod, and the end of the push rod is connected with a support used for being connected with an automobile door. The brushless motor adopts an electronic commutation technology, so that the noise level of the electric actuator is greatly improved, the efficiency is improved, the service life of the motor is prolonged, and the energy-saving, efficient and environment-friendly requirements are met. And the brushless motor can be accurately and stably controlled, so that the use experience of a user on the electric actuator is greatly improved.

Description

Technical Field

[0001] This utility model relates to a side-opening door actuator, and more particularly to an electric side-opening door actuator. Background Technology

[0002] Currently, as users have increasingly higher requirements for the intelligence and safety of car side-opening doors, the application of electric actuators in car side-opening doors is becoming more and more widespread. The motor, as the driving component of the electric actuator, plays a core role and greatly affects the user experience.

[0003] The motors used in existing electric side-opening door actuators on the market are mainly brushed motors. These motors achieve commutation and continuous rotation through mechanical contact between a commutator and brushes. The friction caused by this mechanical contact results in high noise levels, high energy loss, and a reduced lifespan for brushed motors during operation. Furthermore, brushed motors cannot precisely control parameters such as speed and torque, leading to inaccurate and unstable control over opening speed and angle during operation. Utility Model Content

[0004] The present invention aims to solve the above-mentioned defects and provide an electric side-opening door actuator.

[0005] To overcome the deficiencies in the background technology, the technical solution adopted by this utility model to solve its technical problem is as follows: This brushless motor electric side-opening door actuator includes a controller, which is connected to a brushless motor. A worm gear is provided at the front end of the brushless motor, and the worm gear is connected to an electric drive unit inside the brushless motor. The front end of the worm gear is connected to an actuator, which includes a gear, a lead screw, and a slider. The gear is connected to one end of the lead screw and meshes with the worm gear. The slider is sleeved on the lead screw, and a lead screw nut is provided on the slider. The lead screw nut meshes with the teeth on the lead screw, converting the rotational torque of the lead screw into the linear motion of the slider. A push rod is fixedly connected to the upper end of the slider, and the end of the push rod is connected to a bracket for connecting to a car door.

[0006] According to another embodiment of the present invention, the controller is further connected via a connector provided on the brushless motor, and the connector is integrally formed with the end cap on the brushless motor.

[0007] According to another embodiment of the present invention, the actuator is further provided with an external housing, which is connected to a brushless motor.

[0008] According to another embodiment of the present invention, the brushless motor further includes a stator assembly, a rotor assembly, and a Hall sensor disposed therein. The stator assembly is sleeved on the rotor assembly, and a worm gear is connected to the front end of the rotor assembly.

[0009] The beneficial effects of this utility model are as follows: This brushless motor electric side-opening actuator, by replacing the brushed motor in the electric actuator with a brushless motor and using electronic commutation technology, greatly improves the noise level of the electric actuator, increases efficiency, extends motor life, and meets the requirements of energy saving, high efficiency, and environmental protection. Furthermore, because the brushless motor can be precisely and stably controlled, it significantly improves the user experience of the electric actuator. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0013] Figure 3 This is a schematic diagram of a brushless motor.

[0014] The components are: 1. Housing, 2. Push rod, 3. Bracket, 4. Controller, 5. Connector, 6. Brushless motor, 7. Worm gear, 8. Gear, 9. Lead screw, 10. Slider, 11. Lead screw nut, 12. Hall sensor, 13. Stator assembly, 14. Rotor assembly. Detailed Implementation

[0015] 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 in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort in accordance with the embodiments of the basic utility model are within the protection scope of this utility model.

[0016] like Figure 1 As shown, this brushless motor-driven electric side-opening door actuator replaces the brushed motor with a brushless motor, employing electronic commutation technology. It uses Hall effect sensors to detect the rotor's magnetic pole position in real time, converting the position signal into an electrical signal to provide to the controller and generate control command signals. This enables more precise and stable control of the electric actuator's start / stop, commutation, speed, and torque. Furthermore, because the brushless motor avoids mechanical friction commutation, it generates almost no mechanical friction noise during operation, reduces electromagnetic interference caused by sparks from mechanical friction, reduces wear, improves efficiency, and extends the motor's lifespan.

[0017] The specific structure is as follows: Figure 1-3As shown in the figure, the controller 4 is connected to the brushless motor 6. The front end of the brushless motor 6 is provided with a worm gear 7, which is connected to the electric drive unit inside the brushless motor 6. The front end of the worm gear 7 is connected to the actuator, which includes a gear 8, a lead screw 9, and a slider 10. The gear 8 is connected to one end of the lead screw 9 and meshes with the worm gear 7. The slider 10 is sleeved on the lead screw 9, and the slider 10 is provided with a lead screw nut 11. The lead screw nut 11 meshes with the teeth on the lead screw 9 to convert the rotational torque of the lead screw 9 into the linear motion of the slider 10. The upper end of the slider 10 is fixedly connected to a push rod 2, and the end of the push rod 2 is connected to a bracket 3 for connecting to a car door.

[0018] The controller 4 is connected to the connector 5 on the brushless motor 6, and the connector 5 is integrally formed with the end cap on the brushless motor 6.

[0019] The actuator is provided with an external housing 1, which is connected to the brushless motor 6.

[0020] The brushless motor 6 includes a stator assembly 13, a rotor assembly 14, and a Hall sensor 12 installed inside the stator assembly 13. The stator assembly 13 is sleeved on the rotor assembly 14, and the front end of the rotor assembly 14 is connected to the worm gear 1.

[0021] The working principle is as follows: After being powered on, the brushless motor converts electrical energy into mechanical energy. The worm gear on the motor shaft generates rotational torque. Gear 8 meshes with worm 7 and rotates with worm 7. Lead screw 9 rotates axially through its fixed connection with gear 8. The lead screw nut meshes with the teeth on the lead screw, converting the rotational torque into linear motion. The slider assembly is fixed to the lead screw nut and push rod. The push rod is connected to the bracket, and the bracket is connected to the car side door. The lead screw nut drives the slider assembly to move linearly, and the push rod and bracket reciprocate linearly with the slider assembly, realizing the electric control of the electric side door.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electric side-opening door actuator, comprising a controller (4), characterized in that: The controller (4) is connected to the brushless motor (6). The front end of the brushless motor (6) is provided with a worm (7). The worm (7) is connected to the electric drive unit inside the brushless motor (6). The front end of the worm (7) is connected to the actuator. The actuator includes a gear (8), a lead screw (9) and a slider (10). The gear (8) is connected to one end of the lead screw (9) and meshes with the worm (7). The slider (10) is sleeved on the lead screw (9). The slider (10) is provided with a lead screw nut (11). The lead screw nut (11) meshes with the teeth on the lead screw (9) to convert the rotational torque of the lead screw (9) into the linear motion of the slider (10). The upper end of the slider (10) is fixedly connected to a push rod (2). The end of the push rod (2) is connected to a bracket (3) for connecting the car door.

2. The electric side-opening door actuator as described in claim 1, characterized in that: The controller (4) is connected to the brushless motor (6) via a connector (5), which is integrally formed with the end cap on the brushless motor (6).

3. The electric side-opening door actuator as described in claim 1, characterized in that: The actuator is provided with an outer casing (1) which is connected to a brushless motor (6).

4. The electric side-opening door actuator as described in claim 1, characterized in that: The brushless motor (6) includes a stator assembly (13), a rotor assembly (14) and a Hall sensor (12) installed inside it. The stator assembly (13) is sleeved on the rotor assembly (14), and the front end of the rotor assembly (14) is connected to a worm gear (7).

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