Crank assembly of electric control actuator and vehicle

Abstract

The invention discloses a crank assembly of an electric control actuator and a vehicle, the crank assembly is suitable for being installed outside a shell of the electric control actuator, and the crank assembly comprises a crank connected to an output shaft of the electric control actuator; the waterproof cover is arranged outside the crank in a covering mode, the crank is provided with an output piece, and at least part of the output piece extends out of the waterproof cover to be used for being connected with an external execution structure. According to the crank assembly of the electric control actuator, the waterproof cover is arranged outside the crank and can perform waterproof protection on the crank, so that external water is prevented from splashing to the crank and entering the shell of the electric control actuator from the output shaft, the probability that water enters the electric control actuator is reduced, and the safety of the electric control actuator is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle manufacturing technology, and more particularly to a crank assembly of an electronically controlled actuator and a vehicle. Background Technology

[0002] A turbocharger is an exhaust gas-driven supercharging device that recovers the energy from the high-temperature, high-pressure exhaust gases from the engine, driving a turbine to rotate at high speed. This turbine, in turn, drives a coaxial compressor to force more air into the cylinders, thereby increasing the engine's power and torque output. A turbocharger mainly consists of a turbine, compressor, intermediate components, wastegate valve, and electronic actuator. The electronic actuator precisely controls the turbocharger's boost pressure (by adjusting the wastegate valve or variable geometry blades) to optimize engine power output, fuel economy, and response speed. The electronic actuator is connected to a crankshaft and tie rod structure, which sequentially transmits power through these components.

[0003] In related technologies, water can easily splash onto the crank section of the electronic actuator when the vehicle is in motion, and prolonged accumulation can lead to water leakage. Water seeping into the electronic actuator can cause problems such as PCB board damage and bearing rust, which in turn can prevent the turbocharger bypass valve from regulating properly, affecting performance and indicating room for improvement. Summary of the Invention

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a crank assembly for an electronically controlled actuator, wherein the crank assembly can be waterproofed by setting a waterproof cover, thereby improving the safety of the electronically controlled actuator.

[0005] According to an embodiment of the present invention, a crank assembly of an electronically controlled actuator is adapted to be mounted outside the housing of the electronically controlled actuator, and the crank assembly includes: a crank connected to the output shaft of the electronically controlled actuator; a waterproof cover covering the crank, the crank having an output member, at least a portion of the output member extending outside the waterproof cover for connection with an external actuator structure.

[0006] According to an embodiment of the present invention, the crank assembly of the electronic actuator can be waterproofed by providing a waterproof cover outside the crank to prevent external water from splashing onto the crank and entering the housing of the electronic actuator from the output shaft, thereby reducing the probability of water ingress into the electronic actuator and improving the safety of the electronic actuator.

[0007] According to an embodiment of the present invention, the crank assembly of an electronically controlled actuator has a waterproof cover having a waterproof cavity, and the crank is located within the waterproof cavity; wherein the waterproof cavity has an open side and a closed side distributed opposite to each other, the open side being open toward the housing of the electronically controlled actuator, the crank being connected to the output shaft on the open side, and the closed side having a clearance opening, at least a portion of the output member extending from the clearance opening.

[0008] According to an embodiment of the present invention, the crank assembly of an electronically controlled actuator includes a waterproof cover comprising an end housing and a side housing, the side housing being configured as an annular housing, the end housing being connected to one side of the outer side of the side housing to jointly define the waterproof cavity, the other side of the side housing being configured as the open side, the end housing being configured as the closed side, and at least a portion of the inner wall of at least one of the end housing and the side housing being configured to conform to the crank to fit the crank.

[0009] According to an embodiment of the present invention, the crank assembly of the electronically controlled actuator has a clearance opening at one end of the end housing, and a weight reduction opening is also formed at the other end of the end housing.

[0010] According to an embodiment of the present invention, the crank assembly of the electronically controlled actuator has an output member configured as an output pin, and at least a portion of the inner peripheral edge of the clearance opening is configured as an arc-shaped edge, wherein the arc-shaped edge is in contact with the outer peripheral wall of the output pin.

[0011] According to an embodiment of the present invention, the crank assembly of the electronically controlled actuator has a snap-fit ​​structure inside the waterproof cavity, and the crank is snapped and fixed to the waterproof cover through the snap-fit ​​structure.

[0012] According to an embodiment of the present invention, the crank assembly of an electronically controlled actuator includes a connecting body portion and a locking protrusion portion. One end of the connecting body portion is connected to the inner wall of the waterproof cavity, and the locking protrusion portion is connected to the other end of the connecting body portion. The crank is engaged with the locking protrusion portion.

[0013] According to an embodiment of the present invention, in the crank assembly of an electronically controlled actuator, one end of the connecting body portion is connected to the inner wall of the waterproof cavity near the closed side, and the other end of the connecting body portion extends toward the open side and is spaced apart from the inner wall of the waterproof cavity.

[0014] According to an embodiment of the present invention, the crank assembly of the electronically controlled actuator has multiple locking structures, which are spaced apart and distributed on the inner peripheral wall of the waterproof cavity, and together engage with the waterproof cover.

[0015] The present invention also proposes a vehicle.

[0016] A vehicle according to an embodiment of the present invention includes an electronically controlled actuator, the electronically controlled actuator including a crank assembly of the electronically controlled actuator described in any of the above embodiments.

[0017] The advantages of the vehicle and the crank assembly of the aforementioned electronically controlled actuator compared to the prior art are the same, and will not be repeated here.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the waterproof cover according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the crank assembly of the electronically controlled actuator according to an embodiment of the present invention.

[0020] Figure label: Crank assembly 100, Waterproof cover 1, end shell 11, side shell 12, waterproof cavity 13, clearance opening 14, arc-shaped edge 141, weight reduction opening 15, snap-fit ​​structure 16, connecting body part 161, snap-fit ​​protrusion 162, snap-fit ​​limiting surface 163, guide slope 164. Crank 2, output pin 3. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, 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.

[0023] The following is for reference. Figures 1-2 The crank assembly 100 of the electronic actuator according to an embodiment of the present invention is described. The crank 2 of the crank assembly 100 can be protected by a waterproof cover 1 to reduce water droplets entering the crank 2, prevent water from accumulating at the crank 2 shaft, prevent water from entering the electronic actuator, and improve the safety of the electronic actuator.

[0024] It should be noted that the electronically controlled actuator in this invention is applicable to turbochargers. Electronically controlled actuators can be divided into three types: exhaust gas bypass valve actuators, variable geometry turbine actuators, and composite control actuators. They are mainly composed of components such as a housing, gears, a motor, bearings, crankshaft 2, PCB, and sealing rings. The controller can monitor engine operating conditions in real time (such as engine speed, intake pressure, throttle opening, etc.) through sensors, calculate the required boost pressure, and then send a control signal (usually PWM or CAN command) to the electronically controlled actuator. The motor / electromagnetic mechanism inside the actuator then actuates, adjusting the exhaust gas bypass valve opening or the blade angle of the variable geometry turbine via a lever, thereby controlling the exhaust gas flow and turbine speed. Simultaneously, the position sensor built into the actuator provides feedback on the actual displacement, forming a closed-loop control that quickly stabilizes the boost pressure at the target value.

[0025] In other words, an electronically controlled actuator is a device that converts electrical signals into mechanical motion. In a turbocharger, it can be used to precisely control the opening of the exhaust bypass valve (such as in a VGT turbocharger) and adjust the boost pressure through ECU commands. That is, the electronically controlled actuator in this invention can be used to precisely control the opening of the exhaust bypass valve in a turbocharger, or it can also be used in other devices to execute operations corresponding to other control commands.

[0026] like Figures 1-2 As shown, the crank assembly 100 of the electronically controlled actuator according to some embodiments of the present invention includes a crank 2 and a waterproof cover 1.

[0027] The crank assembly 100 is suitable for mounting outside the housing of the electric actuator. It should be noted that the crank assembly 100 can be connected to the electric actuator. For example, if the electric actuator has an output shaft extending outwards from the housing, the crank 2 is connected to the electric actuator via the output shaft. That is, the crank 2 is connected to the output shaft of the electric actuator so that when the motor of the electric actuator is working, the output shaft can drive the crank 2 to rotate. In other words, the crank 2, as a rigid connecting rod component in the electric actuator, can convert the rotational motion of the electric actuator's motor or gear set into an oscillating angle output, typically through an eccentric shaft or slider mechanism to amplify the displacement. Simultaneously, the output shaft, i.e., the crank shaft, is the core shaft supporting the rotation of the crank 2. It typically engages with the keyway of the gear set inside the electric actuator to transmit the motor's torque to the crank 2, thus serving as a structural component connecting the crank 2 and the gears inside the electric actuator.

[0028] A waterproof cover 1 is installed over the crank 2, providing extensive coverage and waterproof protection to prevent external water from entering. It should be noted that the crank 2 is connected to the motor of the electric actuator via an output shaft, which passes through the actuator's housing. The gap between the output shaft and the housing connects the inside of the actuator to the outside. Therefore, by installing the waterproof cover 1, a large amount of water is prevented from flowing towards the crank 2 and entering the actuator's housing through the gap between the output shaft and the housing. This prevents water from seeping into the actuator and corroding the internal motor, thus improving the actuator's safety.

[0029] Therefore, when the vehicle is driving through water, water will splash outside the waterproof cover 1 instead of directly entering the waterproof cover 1 and flowing into the crank 2. It is also less likely to enter the interior of the electronic actuator through the gap between the crankshaft and the housing. At the same time, the waterproof cover 1 can be constructed as a one-piece structure, which is simple and compact, thereby reducing manufacturing costs and improving assembly efficiency.

[0030] Furthermore, the crank 2 is equipped with an output component, at least a portion of which extends outside the waterproof cover 1 for connection to an external actuator. That is, even after the crank 2 is waterproofed by the waterproof cover 1, it can still connect to the external actuator via the output component to drive its movement. For example, the output component can be connected to a pull rod to linearly transmit the crank 2's swing angle to the valve, bearing axial tension or pressure to control the valve opening. Therefore, by providing the waterproof cover 1, this invention not only provides waterproofing but also does not interfere with the power transmission of the crank 2.

[0031] According to an embodiment of the present invention, the crank assembly 100 of the electric actuator provides a waterproof cover 1 outside the crank 2. The waterproof cover 1 can provide waterproof protection for the crank 2 to prevent external water from splashing onto the crank 2 and entering the housing of the electric actuator from the output shaft, thereby reducing the probability of water entering the electric actuator and improving the safety of the electric actuator.

[0032] In some embodiments, the waterproof cover 1 has a waterproof cavity 13, and the crank 2 is located inside the waterproof cavity 13. That is, the waterproof cover 1 is constructed as a hollow cavity, and the crank 2 can be accommodated inside the waterproof cavity 13, thereby forming a built-in waterproof protection for the crank 2, thereby preventing more water from entering the connection between the crank 2 and the electric actuator.

[0033] The waterproof cavity 13 has an open side and a closed side that are relatively distributed. The open side is open to the housing of the electric actuator, and the crank 2 is connected to the output shaft on the open side. Thus, the waterproof cover 1 can be installed on the housing of the electric actuator from the open side, so that the crank 2 can extend into the waterproof cavity 13 and be connected and fixed to the waterproof cover 1, and the closed side can form a closed protection, thereby achieving waterproof protection for the crank 2.

[0034] Furthermore, a clearance opening 14 is formed on the closed side, and at least a portion of the output component extends from the clearance opening 14. In this way, the waterproof cover 1 can not only protect the crank 2, but also ensure that the crank 2 can effectively output power.

[0035] Specifically, such as Figure 1 As shown, the waterproof cover 1 can be constructed with an open bottom and a closed top, so that the waterproof cover 1 can be placed on top of the housing of the electric actuator. For example, the output shaft connected to the electric actuator extends upward and is connected to the crank 2. The crank 2 extends from the bottom of the waterproof cover 1 into the waterproof cover 1. In this way, the bottom of the waterproof cover 1 is open towards the housing of the electric actuator and can fit snugly against the housing to form a closed bottom. At the same time, the top of the waterproof cover 1 has a semi-closed structure to form waterproof protection, thereby preventing water droplets from entering the connection between the crank 2 and the electric actuator, enhancing the waterproof effect, reducing the amount of water entering the electric actuator, and improving the safety of the electric actuator.

[0036] In some embodiments, the waterproof cover 1 includes an end housing 11 and a side housing 12. The side housing 12 is configured as an annular housing, and the end housing 11 is connected to one side of the side housing to jointly define a waterproof cavity 13. The other side of the side housing 12 is configured as an open side, and the end housing 11 is configured as a closed side. That is, when the waterproof cover 1 is formed, the end housing 11 can be formed at one end of the side housing 12 to form a structure with an open bottom and a closed top, thereby forming a relatively closed waterproof cavity 13, achieving effective sealing protection for the crank 2.

[0037] In this configuration, at least a portion of the inner wall of at least one of the end housing 11 and the side housing 12 is conformally fitted to the crank 2. This means that at least a portion of the inner wall of the end housing 11 can be conformally fitted to the outer surface of the crank 2, or at least a portion of the inner wall of the side housing 12 can be conformally fitted to the outer surface of the crank 2, or at least a portion of both can be conformally fitted to the outer surface of the crank 2. This allows the waterproof cover 1 and the crank 2 to form a compact mounting fit, reducing the gap between the crank 2 and the waterproof cover 1, and thus reducing the amount of water droplets entering the connection between the crank 2 and the electric actuator from the gap between the waterproof cover 1 and the crank 2.

[0038] Furthermore, in actual design, the end housing 11 and the side housing 12 can be integrally formed so that the two are a whole. This not only helps to improve the structural strength of the connection between the two, but also reduces the installation steps. Integral forming can also reduce the setup cost, as there is no need to form them separately.

[0039] In some embodiments, the clearance opening 14 is provided at one end of the end housing 11, and the other end of the end housing 11 is also formed with a weight reduction opening 15. Thus, not only can the output component be cleared through the clearance opening 14, but the weight reduction opening 15 can also be provided for weight reduction design, thereby reducing the weight of the waterproof cover 1.

[0040] Specifically, such as Figure 1 and Figure 2 As shown, the clearance opening 14 is located at the left end of the end housing 11, and the weight reduction opening 15 is located at the right end of the end housing 11, so that both ends of the waterproof cover 1 can form a weight reduction setting, which helps to ensure that the weight of both ends of the waterproof cover 1 is relatively balanced.

[0041] In actual installation, at least a portion of the crank 2 can be extended to the weight reduction port 15 to block the weight reduction port 15, thereby reducing the amount of external water entering the waterproof cover 1 from the weight reduction port 15.

[0042] In some embodiments, the output component is configured as an output pin 3. At least a portion of the output pin 3 extends into the waterproof cover 1 and is connected and fixed to the crank 2, so that the crank 2 can drive the output pin 3 to move. Another portion of the output pin 3 extends outside the waterproof cover 1 to connect with an external actuator, thereby achieving a power connection. Specifically, as shown... Figure 2 As shown, the output pin 3 is cylindrical in shape, with its lower end inside the waterproof cover 1 and its upper end extending outside the waterproof cover 1.

[0043] Furthermore, at least a portion of the inner periphery of the clearance opening 14 is constructed as an arc-shaped edge 141, and the arc-shaped edge 141 fits against the outer peripheral wall of the output pin 3 to reduce the gap between the output pin 3 and the waterproof cover 1, thereby reducing the amount of water entering the electrical actuator through the gap between the output pin 3 and the waterproof cover 1.

[0044] Specifically, such as Figure 1 As shown, three arc-shaped edges 141 are formed inside the clearance opening 14. The three arc-shaped edges 141 are distributed at intervals in the circumferential direction of the clearance opening 14. That is, the three arc-shaped edges 141 can be fitted and fixed to the three areas in the circumferential direction of the output pin 3 respectively. In this way, the gap between the waterproof cover 1 and the output pin 3 can be effectively reduced, and the waterproof effect can be enhanced.

[0045] In some embodiments, the waterproof cavity 13 is provided with a snap-fit ​​structure 16, and the crank 2 is snapped and fixed to the waterproof cover 1 through the snap-fit ​​structure 16. That is, when the waterproof cover 1 is connected to the crank 2, the snap-fit ​​structure 16 can be used to snap and fix the waterproof cover 1 to the crank 2, thereby connecting the waterproof cover 1 and the crank 2 into a whole. Thus, during the rotation of the crank 2, the waterproof cover 1 is always covered outside the crank 2, thereby ensuring that the waterproof cover 1 can still maintain a good waterproof effect when the crank 2 rotates.

[0046] The snap-fit ​​structure 16 can be set to one or more, and can be flexibly set according to actual fixing requirements.

[0047] Therefore, by setting the snap-fit ​​structure 16 in the waterproof cover 1, the connection between the crank 2 and the waterproof cover 1 can be made simpler, eliminating the need for separate connecting parts, reducing the number of structural parts, reducing installation steps, and thus achieving easy installation of the waterproof cover 1 and improving assembly efficiency.

[0048] In some embodiments, the snap-fit ​​structure 16 includes a connecting body portion 161 and a snap-fit ​​protrusion 162. One end of the connecting body portion 161 is connected to the inner wall of the waterproof cavity 13, and the snap-fit ​​protrusion 162 is connected to the other end of the connecting body portion 161. The crank 2 is snapped into the snap-fit ​​protrusion 162, that is, the snap-fit ​​protrusion 162 can be connected to the waterproof cover 1 through the connecting body portion 161. Thus, when the snap-fit ​​protrusion 162 is snapped into the crank 2, the position of the snap-fit ​​protrusion 162 relative to the waterproof cover 1 can be adjusted by the deformation of the connecting body portion 161 relative to the waterproof cover 1, thereby enabling the crank 2 to be smoothly snapped into the waterproof cover 1, achieving a quick snap-fit ​​engagement.

[0049] like Figure 1 As shown, the upper end of the connecting body 161 is connected to the inner peripheral wall of the waterproof cover 1, and the snap-fit ​​protrusion 162 is provided at the lower end of the connecting body 161. The snap-fit ​​protrusion 162 protrudes into the waterproof cavity 13 relative to the connecting body 161, so that when the crank 2 is extended into the waterproof cover 1, the snap-fit ​​protrusion 162 can be snapped and fixed with the crank 2.

[0050] Among them, such as Figure 1 As shown, the snap-fit ​​protrusion 162 can be constructed as a right-angled triangular protrusion, wherein one side of the triangular protrusion is connected to the connecting body 161, and the other side can serve as the snap-fit ​​limiting surface 163. The inclined surface of the triangular protrusion can serve as the insertion guide inclined surface 164, that is, the crank 2 can be inserted into the waterproof cavity 13 along the guide inclined surface 164, and the crank 2 is limited and fixed at the snap-fit ​​limiting surface 163, thereby realizing snap-fit ​​installation and improving assembly efficiency.

[0051] In a further embodiment, one end of the connecting body 161 is connected to the area of ​​the inner wall of the waterproof cavity 13 near the closed side, and the other end of the connecting body 161 extends toward the open side and is spaced apart from the inner wall of the waterproof cavity 13, so that the other end of the connecting body 161 can swing relative to one end of the connecting body 161 through the elastic deformation of the connecting body 161, thereby facilitating flexible adjustment of the position of the snap-fit ​​protrusion 162.

[0052] Specifically, such as Figure 1As shown, the connecting body 161 is elongated and extends in an arc shape. The upper end of the connecting body 161 is connected to the upper edge of the inner wall of the waterproof cavity 13, and the lower end of the connecting body 161 extends to the bottom of the waterproof cavity 13 and is spaced apart from the inner wall of the waterproof cavity 13. The snap-fit ​​protrusion 162 is configured to protrude from the lower end of the connecting body 161 on the side near the center of the waterproof cavity 13. Thus, when the crank 2 is inserted from the bottom of the waterproof cover 1, the crank 2 presses against the snap-fit ​​protrusion 162 at the guide slope 164, causing the lower end of the connecting body 161 to deform outward, thereby allowing the crank 2 to smoothly enter the waterproof cavity 13 and achieve snap-fit ​​fixation. After the crank 2 passes the snap-fit ​​protrusion 162, the elastic deformation of the connecting body 161 is restored, and the snap-fit ​​limiting surface 163 of the snap-fit ​​protrusion 162 presses against the crank 2, thereby preventing the crank 2 from coming out of the waterproof cover 1 and achieving snap-fit ​​fixation.

[0053] In some embodiments, there are multiple snap-fit ​​structures 16, and the multiple snap-fit ​​structures 16 are spaced apart and distributed on the inner peripheral wall of the waterproof cavity 13, and together they snap-fit ​​with the waterproof cover 1. That is, the crank 2 can be snapped and confined inside the waterproof cover 1 by the multiple snap-fit ​​structures 16, thereby increasing the connection strength between the waterproof cover 1 and the crank 2.

[0054] In other words, in actual design, multiple snap-fit ​​structures 16 can be snap-fitted and fixed to the crank 2 at multiple positions in the circumferential direction within the waterproof cavity 13, so that the crank 2 is snap-fitted and fixed within the waterproof cavity 13 as a whole, avoiding the crank 2 from coming off due to unstable snap-fitting at local positions.

[0055] Specifically, such as Figure 1 As shown, four locking structures 16 can be configured. Three locking structures 16 can be located at the clearance opening 14 and distributed at intervals in the circumferential direction of the clearance opening 14. The other locking structure 16 can be located at the weight reduction opening 15. Thus, the four locking structures 16 can lock the crank 2 from four positions respectively, and the four locking structures 16 form two relatively distributed groups to ensure that the locking force of the crank 2 in different directions is relatively balanced, making the installation of the crank 2 more stable.

[0056] The present invention also proposes a vehicle.

[0057] The vehicle according to the present invention includes an electronically controlled actuator, which includes a crank assembly 100 of the electronically controlled actuator of any of the above embodiments. By providing a waterproof cover 1 outside the crank 2, the waterproof cover 1 can provide waterproof protection for the crank 2, so as to prevent external water from splashing onto the crank 2 and entering the housing of the electronically controlled actuator from the output shaft, thereby reducing the probability of water entering the electronically controlled actuator and improving the safety of the electronically controlled actuator.

[0058] Therefore, the waterproof cover 1 not only provides all-round waterproof protection for the connection between the crank 2 and the output shaft of the electronic actuator, but also ensures long-term reliability under complex working conditions, while taking into account the requirements of lightweight and compact crank assembly 100.

[0059] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A crank assembly for an electronically controlled actuator, characterized in that, The crank assembly is adapted to be mounted outside the housing of the electronically controlled actuator, and the crank assembly includes: Crank (2), the crank (2) being connected to the output shaft of the electronically controlled actuator; A waterproof cover (1) is provided over the crank (2), the crank (2) is provided with an output member, at least a portion of which extends out of the waterproof cover (1) for connection with an external actuator.

2. The crank assembly of the electronically controlled actuator according to claim 1, characterized in that, The waterproof cover (1) has a waterproof cavity (13), and the crank (2) is located inside the waterproof cavity (13); The waterproof cavity (13) has an open side and a closed side that are relatively distributed. The open side is open to the housing of the electric actuator. The crank (2) is connected to the output shaft on the open side. The closed side has a clearance opening (14). At least a portion of the output component extends out from the clearance opening (14).

3. The crank assembly of the electronically controlled actuator according to claim 2, characterized in that, The waterproof cover (1) includes an end shell (11) and a side shell (12), the side shell (12) being constructed as an annular shell, the end shell (11) being connected to one side of the side shell to jointly define the waterproof cavity (13), the other side of the side shell (12) being constructed as the open side, and the end shell (11) being constructed as the closed side, at least a portion of the inner wall of at least one of the end shell (11) and the side shell (12) being conformally constructed to fit the crank (2).

4. The crank assembly of the electronically controlled actuator according to claim 3, characterized in that, The clearance opening (14) is provided at one end of the end housing (11), and a weight reduction opening (15) is also formed at the other end of the end housing (11).

5. The crank assembly of the electronically controlled actuator according to claim 2, characterized in that, The output component is constructed as an output pin (3), and at least a portion of the inner periphery of the clearance opening (14) is constructed as an arc-shaped edge (141), and the arc-shaped edge (141) is attached to the outer peripheral wall of the output pin (3).

6. The crank assembly of the electronically controlled actuator according to claim 2, characterized in that, The waterproof cavity (13) is provided with a snap-fit ​​structure (16), and the crank (2) is snapped and fixed to the waterproof cover (1) through the snap-fit ​​structure (16).

7. The crank assembly of the electronically controlled actuator according to claim 6, characterized in that, The snap-fit ​​structure (16) includes a connecting body (161) and a snap-fit ​​protrusion (162). One end of the connecting body (161) is connected to the inner wall of the waterproof cavity (13), and the snap-fit ​​protrusion (162) is connected to the other end of the connecting body (161). The crank (2) is snap-fitted with the snap-fit ​​protrusion (162).

8. The crank assembly of the electronically controlled actuator according to claim 7, characterized in that, One end of the connecting body (161) is connected to the area of ​​the inner wall of the waterproof cavity (13) near the closed side, and the other end of the connecting body (161) extends toward the open side and is spaced apart from the inner wall of the waterproof cavity (13).

9. The crank assembly of the electronically controlled actuator according to claim 6, characterized in that, There are multiple snap-fit ​​structures (16), and the multiple snap-fit ​​structures (16) are spaced apart and distributed on the inner peripheral wall of the waterproof cavity (13), and together they snap-fit ​​with the waterproof cover (1).

10. A vehicle, characterized in that, It includes an electronically controlled actuator, the electronically controlled actuator comprising the crank assembly of the electronically controlled actuator according to any one of claims 1-9.

Images