Gear shifting actuator with emergency parking function

Abstract

The invention relates to the technical field of motor vehicle gear shifting, in particular to a gear shifting actuator with an emergency parking function, which comprises a main driving module and an emergency parking module, the main driving module comprises a shell, a driving mechanism and an output assembly, the driving mechanism is arranged in the shell, and the driving mechanism comprises a driving motor and a transmission assembly; the output assembly is connected with the transmission assembly; the emergency parking module comprises a supporting structure, an energy storage driving assembly, a locking assembly and an electromagnetic driving part, the energy storage driving assembly is arranged on the supporting structure, the locking assembly is matched with the energy storage driving assembly, and the electromagnetic driving part is used for controlling the locking assembly; the energy storage driving assembly is in transmission connection with the transmission assembly. According to the gear shifting actuator, the problem that a single-motor scheme is insufficient in reliability is solved, the defects that a double-motor scheme is complex in structure and high in cost are overcome, and meanwhile the reliability of the emergency parking function is ensured through mechanical energy storage and a simple electromagnetic control mode.

Description

Technical Field

[0001] The present invention relates to the technical field of motor vehicle shifting, and particularly to a shifting actuator with an emergency parking function. Background Art

[0002] Currently, electronic shifting actuators are widely used in automotive transmission systems, which achieve shifting operations through motor drive and software control. However, this traditional design has significant safety hazards. That is, once the motor fails, the shifting function will completely fail, and even the emergency parking cannot be achieved, which may lead to serious safety problems.

[0003] In the prior art in this field, an actuator for electronic shifting is disclosed, with the publication number CN208311435U. It uses the motor as the sole power source. If the motor fails, the entire system will not work, lacking redundant design and backup solutions, so there are safety hazards.

[0004] In the prior art, an electronic shifting actuator is also disclosed, with the publication number CN214171302U. It uses a transmission system composed of face gears, worms, and variable radius gears, and its sensor is located on the first-stage gear train, which will affect the control accuracy of the actuator.

[0005] In addition, in the prior art, an electronic shifting actuator is also disclosed, with the publication number CN218564363U. It includes a main motor assembly and a backup motor. Since two motors are used, control circuits and sensors corresponding to the motors need to be equipped, resulting in complex control and high costs. Summary of the Invention

[0006] The purpose of the present invention is to provide a shifting actuator with an emergency parking function to solve the problem that once the motor of a traditional electronic shifter fails, the shifting function will completely fail, and even the emergency parking cannot be achieved, resulting in safety hazards.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A shifting actuator with an emergency parking function, comprising: a main drive module and an emergency parking module;

[0008] The main drive module includes: a housing, a drive mechanism, and an output component. The drive mechanism is disposed within the housing, and the drive mechanism includes a drive motor and a transmission component; the output component is connected to the transmission component;

[0009] The emergency parking module includes: a support structure, an energy storage drive component, a locking component, and an electromagnetic drive member. The energy storage drive component is disposed on the support structure, the energy storage drive component is in transmission connection with the transmission component, the locking component is matched with the energy storage drive component, and the electromagnetic drive member is used to control the locking component;

[0010] The energy storage drive assembly is in driving connection with the transmission assembly.

[0011] Preferably, the transmission assembly includes a worm gear connected to the drive motor and a face gear worm wheel meshing with the worm gear.

[0012] Preferably, the tooth part of the face gear is arranged towards the inner side of the housing.

[0013] Preferably, the energy storage drive assembly includes a drive plate, a drive plate sleeve and a volute spring. A locking groove is provided on the outer ring of the drive plate, and a tooth part meshing with the transmission assembly is provided on the inner ring; the drive plate sleeve is fixedly connected to the drive plate; the volute spring is arranged on the outer ring of the drive plate sleeve, and its inner end is clamped with the drive plate sleeve to drive the drive plate sleeve to rotate.

[0014] Preferably, the locking assembly includes a lock piece and a lock piece return spring. The lock piece is rotatably arranged on the support structure and cooperates with the locking groove; the lock piece return spring is used to keep the lock piece in a clamped state with the locking groove.

[0015] Preferably, the structure of the locking groove is such that when the lock piece is inserted, the drive plate can only rotate in a single direction.

[0016] Preferably, the output assembly includes a sector gear, a magnetic part and a seal. The magnetic part is arranged on the sector gear, and the seal is used for sealing.

[0017] Preferably, the housing includes a box body, a breathable film and a box cover. The box body is connected to the box cover, and the breathable film is arranged on the box body.

[0018] Preferably, a control circuit board is further arranged in the housing, and a position sensor for detecting the position of the output assembly is arranged on the control circuit board.

[0019] Preferably, an operation interface for manual unlocking is arranged on the face gear.

[0020] In summary, due to the adoption of the above technologies, the beneficial effects of the present invention are:

[0021] The present invention includes: a main drive module and an emergency parking module; the main drive module includes: a housing, a drive mechanism, and an output assembly, and the drive mechanism includes a drive motor and a transmission assembly; the emergency parking module includes: a support structure, an energy storage drive assembly, a locking assembly, and an electromagnetic drive member. In the normal shifting mode, the drive motor in the main drive module drives the output assembly through the transmission assembly to achieve a shifting operation, and at the same time stores energy for the energy storage drive assembly; when entering the fault mode (such as the drive motor fails), the electromagnetic drive member controls the locking assembly to release, and the energy storage drive assembly rotates under the action of the stored energy and drives the output assembly through the transmission connection with the transmission assembly to achieve emergency parking, and no additional power source and complex control system are required for the whole process. The shifting actuator of the present invention not only solves the problem of insufficient reliability of the single-motor solution, but also avoids the disadvantages of complex structure and high cost of the dual-motor solution. At the same time, through mechanical energy storage and simple electromagnetic control methods, the reliability of the emergency parking function is ensured. Description of the Drawings

[0022] The drawings herein are incorporated into the specification and form a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0025] Figure 1 It is an exploded view of a shifting actuator with emergency parking according to the present invention;

[0026] Figure 2 It is an exploded view of the main drive module related to the present invention;

[0027] Figure 3 For Figure 2 The schematic diagram of the shown box body;

[0028] Figure 4 For Figure 2 The exploded view of the shown output sector gear;

[0029] Figure 5 For Figure 2 The exploded view of the shown driving member;

[0030] Figure 6 An enlarged schematic diagram of the emergency parking module related to the present invention;

[0031] Figure 7 An exploded schematic diagram of the emergency parking module related to the present invention;

[0032] Figure 8 is Figure 1 A schematic diagram of the box cover shown;

[0033] Figure 9 is Figure 1 A schematic diagram of the box body shown from another perspective;

[0034] Figure 10 A schematic diagram of the face gear involved in the invention from another perspective.

[0035] 1. Emergency parking module; 11. Support structure; 12. Driving plate; 13. Locking piece; 14. Driving plate sleeve; 15. Locking piece shaft; 16. Spacer sleeve; 17. Gasket; 18. Volute spring; 181. Inner end of the spring; 182. Outer end of the spring; 19. Locking piece return spring; 110. Electromagnetic driving member; 2. Main driving module; 21. Housing; 211. Box body; 212. Breathable membrane; 213. Box cover; 2111. Positioning shaft; 2112. Terminal 1; 2113. Terminal 2; 22. Face gear; 221. Operation interface; 23. Transmission assembly; 231. Worm; 232. Driving motor; 24. Output assembly; 241. Magnetic member; 242. Sector gear; 243. Sealing member; 25. Pressure limiting sleeve; 26. O-ring; 27. Control circuit board; 28. Limiting strip; 29. Locking groove. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0038] For ease of description, relative spatial relationship terms may be used in the text to describe the relative position or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inner", "outer", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such relative spatial relationship terms are intended to include different orientations of the device during use or operation in addition to the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both the upper and lower orientations. The device can be additionally oriented by rotating 90 degrees or in other directions, and the relative spatial relationship descriptors used in the text are interpreted accordingly.

[0039] The present invention provides a shift actuator with an emergency parking function, as Figures 1 - 10 shown, which includes a main drive module 2 and an emergency parking module 1.

[0040] Among them, as Figure 1 and Figure 2 shown, the main drive module 2 includes a housing 21, a drive mechanism, and an output assembly 24. The drive mechanism is disposed inside the housing 21. The drive mechanism includes a drive motor 232 and a transmission assembly 23. The output assembly 24 is connected to the transmission assembly 23.

[0041] Furthermore, as Figure 4 shown, the output assembly 24 includes a sector gear 242, a magnetic member 241, a seal 243, and a shaft sleeve connected to the sector gear. The sector gear 242 serves as the output end and meshes with the face gear 22 of the transmission assembly 23 for transmitting shift power. The magnetic member 241 is directly disposed on the sector gear 242. The seal 243 adopts a star-shaped ring structure for sealing between the sector gear 242 and the housing 211. During operation, the sector gear 242 rotates with the drive of the drive mechanism and then outputs torque through the shaft sleeve to achieve shifting. The magnetic member 241 thereon cooperates with the Hall sensor on the control circuit board 27 to accurately detect the position of the sector gear 242, and the setting of the seal 243 effectively prevents grease leakage and foreign matter from entering, improving the reliability of the system. Compared with the prior art, the output assembly 24 of the present application has a simpler structure, is more convenient to manufacture, and has better sealing performance.

[0042] Among them, as Figure 1 、 Figure 6 andFigure 7 As shown in the figure, the emergency parking module 1 includes: a support structure 11, an energy storage driving assembly, a locking assembly, and an electromagnetic driving member 110. The energy storage driving assembly is arranged on the support structure 11. The energy storage driving assembly is connected to the transmission assembly 23. The locking assembly is matched with the energy storage driving assembly. The electromagnetic driving member 110 is used to control the locking assembly. Wherein, the energy storage driving assembly is in transmission connection with the transmission assembly 23.

[0043] In the normal shifting mode, the driving motor 232 in the main driving module 2 drives the sector gear 242 in the output assembly 24 through the transmission assembly 23 to achieve a shifting action. At the same time, the energy storage driving assembly is energized under the action of the transmission assembly 23. When entering the fault mode, such as the failure of the driving motor 232, the electromagnetic driving member 110 controls the locking assembly to release. The energy storage driving assembly rotates under the action of the stored energy and drives the output assembly 24 through the transmission connection with the transmission assembly 23 to achieve emergency parking. The whole process does not require an additional power source and a complex control system. In this embodiment, the electromagnetic driving member 110 is an electromagnet or an electromagnetic coil.

[0044] The shifting actuator of this embodiment not only solves the problem of insufficient reliability of the single-motor solution, but also avoids the disadvantages of complex structure and high cost of the dual-motor solution. At the same time, through mechanical energy storage and a simple electromagnetic control method, the reliability of the emergency parking function is ensured.

[0045] Furthermore, as Figure 2 shown, the transmission assembly 23 includes: a worm 231 connected to the driving motor 232, and a face gear 22 meshing with the worm 231. By directly driving the worm 231 with the driving motor 232 and adopting a two-stage transmission method in which the worm 231 meshes with the face gear worm 22, not only the transmission link is simplified and the transmission efficiency is improved, but also a large reduction ratio can be obtained through the meshing of the worm 231 and the face gear 22, which is beneficial to providing sufficient output torque. Specifically, the tooth part of the face gear 22 is arranged towards the inner side of the housing 21 to avoid grease contamination of other components and limit the lubricating grease in the transmission area.

[0046] Furthermore, as Figure 6 and Figure 7As shown in the figure, the energy storage driving assembly includes: a driving plate 12, a driving plate sleeve 14, and a volute spring 18. A locking groove 29 is provided on the outer circle of the driving plate 12, and a tooth portion meshing with the transmission assembly 23 is provided on the inner circle; the driving plate sleeve 14 is fixedly connected to the inner circle of the driving plate 12; the volute spring 18 is arranged on the outer circle of the driving plate sleeve 14, and its inner spring end 181 is clamped with the driving plate sleeve 14, and its outer spring end 182 is clamped with the support structure 11. Specifically, the outer spring end 182 of the volute spring 18 is limited by the limiting strip 28 on the support structure 11, so as to store and release energy.

[0047] Among them, a locking groove 29 is provided on the outer circle of the driving plate 12 for cooperating with the locking assembly to realize the locking function, and a tooth portion is provided on the inner circle for meshing with the transmission assembly 23 to transmit power. The driving plate 12 is fixedly connected to the support structure 11 through the driving plate sleeve 14 to form a reliable rotational support, and the volute spring 18 provides rotational power for the driving plate 12. During normal operation, the driving plate 12 is driven to rotate by the main driving module 2, and then the driving plate sleeve 14 is driven to rotate, so as to compress the volute spring 18 for energy storage; when emergency parking is required, the locking assembly releases the driving plate 12 under the control of the electromagnetic driving member 110, and the volute spring 18 releases the stored energy to drive the driving plate sleeve 14 and the driving plate 12 to rotate, and drives the output assembly 24 to realize emergency parking through the meshing of the inner circle tooth portion and the transmission assembly 23. This pure mechanical energy storage and release mechanism is not only simple and reliable in structure, but also does not require an additional power source, has a fast response speed, greatly improves the reliability of the emergency parking function, and also reduces the system cost.

[0048] Specifically, during normal operation, the driving motor 232 in the main driving module 2 drives the worm 231, and then drives the face gear 22 to rotate. The teeth on the face gear 22 mesh with the teeth on the inner circle of the driving plate 12 to drive the driving plate 12 to rotate, so as to compress the volute spring 18 for energy storage. When the driving plate 12 rotates in place, the locking assembly snaps into the locking groove 29 on the outer circle of the driving plate 12 to complete the energy storage; when emergency parking is required, the electromagnetic driving member 110 pushes the locking assembly out of the locking groove 29, and the volute spring 18 releases the stored energy to drive the driving plate 12 to rotate, and drives the sector gear 242 to realize emergency parking through the meshing of the inner circle tooth portion and the face gear 22.

[0049] Specifically, 3 grooves are provided on the inner circle of the driving plate 12 to increase the torque; the driving plate 12 is fixedly connected to the driving plate sleeve 14 by riveting to form an integral body, and this integral body is riveted to the support structure 11 through the gasket 17 on one side of the driving plate sleeve 14, so as to realize a reliable rotational support; the volute spring 18 provides rotational power for the driving plate 12.

[0050] Further, as Figure 6 and Figure 7As shown in the figure, the locking assembly includes: a locking piece 13 and a locking piece return spring 19. The locking piece 13 is rotatably arranged on the support structure 11, and the locking piece 13 cooperates with the locking groove 29. The locking piece return spring 19 is used to keep the locking piece 13 in a locked state with the locking groove 29.

[0051] Specifically, the locking piece 13 is installed on the support structure 11 through a locking piece shaft 15 and can rotate around the locking piece shaft 15. Specifically, a spacer sleeve 16 can be arranged between the locking piece shaft 15 and the locking piece 13. When there is no external force, the locking piece return spring 19 always keeps the locking piece 13 in a locked state with the outer ring locking groove 29 of the driving plate 12. During normal operation, the locking piece 13 is reliably engaged with the locking groove 29 under the action of the return spring. Due to the special design of the locking groove 29, the driving plate 12 can only rotate in a single direction and cannot move in the reverse direction, thus ensuring the energy storage state of the scroll spring 18. When emergency parking is required, the electromagnetic driving member 110 pushes the locking piece 13 to overcome the return spring force, so that the locking piece 13 disengages from the locking groove 29 and releases the energy storage mechanism. This mechanical locking structure not only ensures the reliable maintenance of the energy storage state, but also through the automatic reset function of the locking piece return spring 19, enables the system to automatically prepare for the next action after completing an emergency parking operation, improving the reliability of the system.

[0052] In this embodiment, the structure of the locking groove 29 enables the driving plate 12 to rotate in only one direction when the locking piece 13 is engaged. During normal operation, the driving plate 12 can be driven by the main driving module 2 to rotate in the energy storage direction, that is, the direction of compressing the scroll spring 18, while in the reverse direction, that is, the direction of releasing the energy storage, it will be blocked by the locking piece 13. Through this one-way locking structure, firstly, the reliability of the energy storage process is ensured, preventing the scroll spring 18 from being accidentally released during the energy storage process. Secondly, the one-way control realized by the mechanical structure is more reliable than the electrical control and does not require complex control logic. Thirdly, this locking structure is simple and the action is reliable, effectively reducing the complexity and cost of the system. When emergency parking is required, the electromagnetic driving member 110 pushes the locking piece 13 to disengage from the locking groove 29, and the one-way locking state can be released, enabling the energy storage release process to proceed reliably.

[0053] Furthermore, as Figure 2 shown, a control circuit board 27 is also arranged in the housing 21. A position sensor for detecting the position of the output assembly 24 is arranged on the control circuit board 27. The position sensor realizes position detection by detecting the position change of the magnetic part 241 on the sector gear 242. The position sensor here is a Hall sensor. In addition, the control circuit board 27 has two versions, with a controller and without a controller, and both can be adapted to the box body 211, thereby improving the versatility and flexibility of the product and facilitating configuration according to different requirements.

[0054] Further, as shown in Figure 3 and Figure 8 , the housing 21 includes: a box body 211, a breathable film 212, and a box cover 213. The box body 211 and the box cover 213 are connected to form a sealed space. A breathable film 212 is provided on the box body 211. The breathable film 212 is fixed to the box body 211 by ultrasonic welding. The breathable film 212 can balance the pressure inside and outside the housing 21, prevent the seal 243 from deforming due to temperature changes, and at the same time prevent moisture and dust from entering; the breathable film 212 is fixed by ultrasonic welding and is arranged close to the motor, which is beneficial to the heat dissipation of the motor.

[0055] A positioning shaft 2111 is embedded in the box body 211 for positioning the face gear 22. In addition, a terminal one 2112 and a terminal two 2113 are also embedded inside the box body 211. The terminal one 2112 is used to connect the drive motor 232 and the control circuit board 27, and the terminal two 2113 is used to connect the control circuit board 27 and the female end of the external connector. It should be noted that the terminal one 2112 and the terminal two 2113 are only provided for electrical transmission, and those skilled in the art can adjust them according to needs.

[0056] In addition, a pressure limiting sleeve 25 and an O-ring 26 are also provided on the housing 21 for sealing the housing 21. The pressure limiting sleeve 25 and the O-ring 26 can adopt existing structures.

[0057] As shown in Figure 9 and Figure 10 , further, an operation interface 221 for manual unlocking is provided on the face gear 22. The outer contour of the operation interface 221 adopts a plum blossom-shaped interface. When both the main drive module 2 and the emergency parking module 1 fail, tools such as a wrench or a wire can be used to cooperate with the plum blossom-shaped interface to manually rotate the face gear 22 to achieve gear shifting operation, providing a final emergency measure for the system; secondly, since the face gear 22 is directly meshed with the output sector gear 242, the gear shifting power can be reliably transmitted by manually operating the face gear 22; particularly, in order to meet the needs of modular use and improve the flexibility of the solution of this embodiment, when the emergency parking function is not required, the main drive module 2 can be used alone, and at this time the manual unlocking function is particularly important. This design not only improves the reliability of the system, but also has a simple structure and low cost.

[0058] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0059] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0060] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0061] In the present application, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0062] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0063] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0064] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, provided that these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and variations.

[0065] As described above, the above is the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A shift actuator with emergency parking, characterized in that, Comprising: A main drive module (2) and an emergency parking module (1); The main drive module (2) includes: a housing (21), a drive mechanism, and an output assembly (24). The drive mechanism is disposed within the housing (21), and the drive mechanism includes a drive motor (232) and a transmission assembly (23); the output assembly (24) is connected to the transmission assembly (23); The emergency parking module (1) includes: a support structure (11), an energy storage drive assembly, a locking assembly, and an electromagnetic drive member (110). The energy storage drive assembly is disposed on the support structure (11), the energy storage drive assembly is in transmission connection with the transmission assembly (23), the locking assembly is in cooperation with the energy storage drive assembly, and the electromagnetic drive member (110) is used to control the locking assembly; The energy storage drive assembly is in transmission connection with the transmission assembly (23).

2. The shift actuator with emergency parking according to claim 1, characterized in that, The transmission assembly (23) includes: a worm (231) connected to the drive motor (232), and a face gear (22) meshing with the worm (231).

3. The shift actuator with emergency parking according to claim 2, characterized in that, The tooth portion of the face gear (22) is disposed toward the inner side of the housing (21).

4. The shift actuator with emergency parking according to any one of claims 1-3, characterized in that The energy storage drive assembly includes: a drive plate (12), a drive plate sleeve (14), and a volute spring (18). A locking groove (29) is provided on the outer circle of the drive plate (12), and a tooth portion meshing with the transmission assembly (23) is provided on the inner circle; the drive plate sleeve (14) is fixedly connected to the drive plate (12); the volute spring (18) is disposed on the outer circle of the drive plate sleeve (14), and its inner end is clamped with the drive plate sleeve (14).

5. The shift actuator with emergency parking according to claim 4, characterized in that, The locking assembly includes: a lock piece (13) and a lock piece return spring (19). The lock piece (13) is rotatably disposed on the support structure (11), and the lock piece (13) cooperates with the locking groove (29); the lock piece return spring (19) is used to keep the lock piece (13) in a clamped state with the locking groove (29).

6. The shift actuator with emergency parking according to claim 4, characterized in that, The structure of the locking groove (29) is such that when the lock piece (13) is inserted, the drive plate (12) can only rotate in a single direction.

7. The shift actuator with emergency parking according to claim 1, characterized in that, The output assembly (24) includes a sector gear (242), a magnetic member (241), and a seal (243). The magnetic member (241) is disposed on the sector gear (242), and the seal (243) is used for sealing.

8. The shift actuator with emergency parking according to claim 1, characterized in that, The housing (21) includes: a box body (211), a breathable film (212), and a box cover (213). The box body (211) is connected to the box cover (213), and the breathable film (212) is disposed on the box body (211).

9. The shift actuator with emergency parking according to claim 1, characterized in that, A control circuit board (27) is further disposed within the housing (21), and a position sensor for detecting the position of the output assembly (24) is provided on the control circuit board (27).

10. The shift actuator with emergency parking according to claim 2, characterized in that, An operation interface (221) for manual unlocking is provided on the face gear (22).

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