Electric cylinder assembly for automobile active spoiler

Abstract

The utility model discloses an electric cylinder assembly for an automobile active empennage, which comprises an outer shell, an upper cover plate, an upper cover plate and a lower cover plate, the motor is arranged in the outer shell and fixed to the mounting base, the motor is provided with an upward driving shaft, and the driving shaft is connected with the input end of the gearbox; the lead screw assembly is in butt joint with the output end of the gear box; the output rod is driven by the lead screw assembly, a hinge hole is formed in the end of the output rod and used for installing a connecting rod, and the connecting rod is installed on the automobile spoiler and used for driving the automobile spoiler to turn over. By integrating the motor, the gear box and the lead screw assembly, the arrangement space is greatly optimized, meanwhile, the whole outer shell is matched with the installation base and the upper cover plate to form protection and sealing, the protection performance is good, and the troubles that an existing electric cylinder driving structure is large in occupied space, complex in structure and poor in protection performance are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile tail wings, and in particular relates to an electric cylinder assembly for an active automobile tail wing. Background Art

[0002] A car's rear wing is a ducktail-like protrusion mounted on the rear end of a car's trunk lid. It is part of the vehicle's aerodynamic package. Its primary function is to reduce lift at the rear of the vehicle. Some people abroad figuratively call it a "sled" based on its shape. In China, some also call it a "ducktail" or "spoiler." More scientific terms would be "spoiler," "spoiler wing," or "spoiler plate." Rear wings are generally available in single-layer or double-layer configurations. Currently, the rear wing's drive assembly utilizes a separate motor mounted directly in the center of the rear wing's base. This motor then raises and lowers the rear wing via a multi-arm linkage. This structure consumes significant space, eliminating the need for a fully enclosed housing. Furthermore, the stability of the connecting rods degrades over time due to intrusion by rain, dust, and other factors, significantly impacting their lifespan.

[0003] Therefore, a drive assembly that can integrate the entire tail wing drive, reduce layout space, and optimize dust and water resistance needs to be studied urgently. Utility Model Content

[0004] In view of this, the technical problem to be solved by the present invention is to provide an electric cylinder assembly for an active rear wing of an automobile. By integrating the motor, gearbox and screw assembly, the layout space is greatly optimized. At the same time, the entire outer shell cooperates with the mounting base and the upper cover to form protection and sealing, with good protection, avoiding the problems of previous electric cylinder drive structures that occupy a large space, have a complex structure and weak protection.

[0005] In order to solve the above technical problems, the utility model discloses an electric cylinder assembly for an active rear wing of an automobile, comprising:

[0006] The outer shell has a mounting base and an upper cover, and the mounting base is fixed to the tail wing base support;

[0007] The motor is disposed in the outer shell and fixed to the mounting base. The motor has an upward drive shaft connected to the input end of the gear box;

[0008] The screw assembly is connected to the output end of the gearbox, and the screw assembly includes a lower chassis connected to the gearbox, a screw shaft installed on the lower chassis, and a screw nut sleeve threadedly engaged with the screw shaft. The screw nut sleeve has support guide pillars installed on all four sides, the support guide pillars are higher than the screw shaft, and the upper ends of the support guide pillars are fixed with support plates;

[0009] An upper fixed guide sleeve is installed on the upper end of the screw assembly and fixed in the outer shell;

[0010] The output rod is fixed in the center of the support plate, and a hinge hole is provided at the end thereof. The hinge hole is used to install a connecting rod, and the connecting rod is installed to the rear wing spoiler of the automobile to drive the rear wing spoiler of the automobile to flip.

[0011] According to one embodiment of the present invention, the upper cover plate has a protruding cap portion located in the center, the protruding cap portion exposes the output rod, and a positioning handle is provided on one side of the protruding cap portion, the positioning handle has a mounting hole, and the mounting hole is fixed to the tail wing bracket by screws.

[0012] According to one embodiment of the present invention, the screw assembly further comprises an intermediate sleeve connected to the lower chassis and the upper fixed guide sleeve, a plurality of guide grooves are provided on the outer side of the intermediate sleeve, and the lower chassis and the upper fixed guide sleeve respectively have claws embedded in the guide grooves.

[0013] According to one embodiment of the present invention, a guide plate is provided inside the upper fixed guide sleeve, the guide plate has peripheral through holes through which the support guide columns pass, and a central through hole on the upper end of the screw shaft for mounting the bearing, wherein the support plate is located on the upper side of the guide plate.

[0014] According to one embodiment of the present invention, the lower chassis has a stepped groove for limiting the screw nut sleeve.

[0015] According to one embodiment of the present invention, a sealing ring is provided between the upper cover plate and the outer shell.

[0016] According to one embodiment of the present invention, the above-mentioned support guide pillars are provided in four numbers and are arranged in a circular array on the screw nut sleeve.

[0017] According to one embodiment of the present invention, a through hole for connecting a wiring harness is provided at the lower end of the mounting base.

[0018] According to an embodiment of the present invention, a plurality of mounting posts extend from the edge of the mounting base.

[0019] Compared with the prior art, the present invention can achieve the following technical effects:

[0020] By integrating the motor, gearbox and screw assembly, the layout space is greatly optimized. At the same time, the entire outer shell is combined with the mounting base and upper cover to form protection and sealing, which has good protection and avoids the problems of previous electric cylinder drive structures such as large space occupation, complex structure and weak protection.

[0021] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 This is a schematic diagram of the installation of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the interior of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model;

[0026] Figure 4 This is a schematic diagram of a screw assembly for an active rear wing of an automobile according to an embodiment of the utility model;

[0027] Figure 5 yes Figure 4 Exploded diagram;

[0028] Figure 6 It is a schematic diagram of an upper fixed guide sleeve according to an embodiment of the present utility model.

[0029] Reference numerals

[0030] Outer shell 10, mounting base 11, upper cover 12, protruding cap 13, positioning handle 14, motor 20, gear box 30, screw assembly 40, lower chassis 41, screw shaft 42, screw nut sleeve 43, support guide column 44, support plate 45, intermediate sleeve 46, guide groove 47, upper fixed guide sleeve 60, guide plate 61, output rod 70, mounting column 80. DETAILED DESCRIPTION

[0031] The following will describe the implementation of the present invention in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] Please refer to Figure 1 and Figure 6 , Figure 1 This is a schematic diagram of the installation of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model; Figure 2 This is a schematic diagram of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model; Figure 3 This is a schematic diagram of the interior of an electric cylinder assembly for an active rear wing of an automobile according to an embodiment of the utility model; Figure 4 This is a schematic diagram of a screw assembly for an active rear wing of an automobile according to an embodiment of the utility model; Figure 5 yes Figure 4 Exploded diagram; Figure 6 It is a schematic diagram of an upper fixed guide sleeve according to an embodiment of the present utility model.

[0033] As shown in the figure, an electric cylinder assembly for an active rear wing of an automobile includes: an outer shell 10, the outer shell 10 having a mounting base 11 and an upper cover 12, the mounting base 11 being fixed to the rear wing base; a motor 20, the motor 20 being arranged in the outer shell 10 and fixed to the mounting base 11, the motor 20 having an upward drive shaft connected to the input end of a gear box 30; a screw assembly 40, the screw assembly 40 being connected to the output end of the gear box 30, and the screw assembly 40 including a lower chassis 41 connected to the gear box 30, a screw shaft 40 passing through the lower chassis 41 and mounted thereon. 2. A screw nut sleeve 43 is threadedly engaged with the screw shaft 42. The screw nut sleeve 43 has support guide columns 44 installed on all four sides. The support guide columns 44 are higher than the screw shaft 42, and the upper ends of the support guide columns 44 are fixed with support plates 45; an upper fixed guide sleeve 60 is installed on the upper end of the screw assembly 40 and fixed in the outer shell 10; an output rod 70 is fixed to the center of the support plate 45, and a hinge hole is provided at the end thereof. The hinge hole is used to install a connecting rod, which is installed to the rear wing spoiler of the car to drive the rear wing spoiler of the car to flip.

[0034] like Figure 1 As shown, the tail is configured as a double-layer tail, the lower layer is a fixed tail, and the upper layer is an electrically controlled detour plate. The electric cylinder assembly is installed between the lower tail and the tail base, and the mounting base 11 is fixed to the tail base. The entire outer shell is close to the support beam between the lower tail and the base, and the upper tail, i.e., the spoiler, is driven by the electric cylinder assembly to achieve flipping and detour.

[0035] Specifically, in one embodiment of the present invention, a mounting base 11 and an upper cover plate 12 are respectively provided at the upper and lower ends of the outer shell 10 to form a seal that meets the requirements of waterproof and moisture-proof grade. A motor 20 is installed at the bottom of the outer shell 10, and a gear box 30 is connected to the drive shaft of the motor 20 to complete the speed change and increase the torque. The screw assembly 40 is located at the upper end of the gear box 30, and is connected to the output end of the gear box 30 through the screw shaft 42 to complete the transmission. A plurality of support guide columns 44 are provided on the periphery of the screw nut sleeve 43 of the screw shaft 42, and a support sheet 45 is arranged at the top thereof, and is passed through the upper fixed guide sleeve 60 to be connected to the extension rod 70, thereby driving the extension rod 70 to extend or retract through the entire screw assembly 40. A hinged handle is provided at the end of the extension rod 70, which can be connected to the upper tail wing through a connecting rod, and then the flip and angle adjustment are completed to achieve spoiler.

[0036] The upper cover plate 12 of the present invention has a protruding cap portion 13 located in the center, the protruding cap portion 13 exposes the output rod 70, and a positioning handle 14 is provided on one side of the protruding cap portion 13. The positioning handle 14 has a mounting hole, which is fixed to the tail wing bracket by a screw, thereby achieving the upper end fixation of the entire electric cylinder assembly and maintaining its operational stability.

[0037] The screw assembly 40 also includes an intermediate sleeve 46 that connects to the lower chassis 41 and the upper fixed guide sleeve 60. The outer side of the intermediate sleeve 46 is provided with multiple guide grooves 47. The lower chassis 41 and the upper fixed guide sleeve 46 each have a claw embedded in the guide grooves 47. In this embodiment, the lower chassis 41 connects to the outer shell of the gearbox 30 and is penetrated by the screw shaft 42 to maintain stability. The upper fixed guide sleeve 60 stabilizes the upper end of the screw assembly 40. The intermediate sleeve 46 forms an outer shell protection to prevent the screw shaft 42 and the support guide column 44 from being eroded by external rain and dust. In addition, the outer wall of the intermediate sleeve 46 is provided with multiple axial guide grooves 47, which are connected to the lower chassis 41 and the upper fixed guide sleeve 60 to prevent radial movement and affect stability.

[0038] In one preferred embodiment, a guide plate 61 is disposed within the upper fixed guide sleeve 60. This guide plate 61 has peripheral through-holes for supporting the guide posts 44 and a central through-hole for mounting the upper end of the lead screw shaft 42 via a bearing. A support plate 45 is located above the guide plate 61. The peripheral through-holes limit radial deflection of the bearing guide posts 44, allowing the lead screw nut sleeve 43 to move up and down under the rotational drive of the lead screw shaft 42, maintaining a stable extension and retraction motion. The central through-hole stabilizes the upper end of the lead screw shaft 42, maintaining its rotational stability.

[0039] In addition, the lower chassis 41 has a stepped groove for limiting the screw nut sleeve 43, which plays a role in limiting the retraction of the screw nut sleeve 43.

[0040] It is worth mentioning that a sealing ring is provided between the upper cover plate 12 and the outer shell 10 to strengthen the sealing of the top.

[0041] The supporting guide pillars 44 of the present invention are provided in four numbers and are arranged in a circular array on the screw nut sleeve 43 , thereby increasing the bearing capacity and maintaining the stability of its operation.

[0042] In addition, the lower end of the mounting base 11 is provided with a through hole for connecting the wiring harness to complete the circuit docking of the motor 20. A plurality of mounting posts extend from the edge of the mounting base 11 to facilitate screw fixing.

[0043] In summary, the present invention greatly optimizes the layout space by integrating the motor 20, the gear box 30 and the screw assembly 40. At the same time, the entire outer shell 10 cooperates with the mounting base 11 and the upper cover 12 to form protection and sealing, with good protection, avoiding the troubles of the previous electric cylinder drive structure that occupies a large space, has a complex structure and weak protection.

[0044] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. An electric cylinder assembly for an active rear wing of an automobile, characterized in that: include: An outer shell having a mounting base and an upper cover plate, wherein the mounting base is fixed to the tail wing base support; a motor, the motor being disposed within the outer shell and fixed to the mounting base, the motor having an upwardly directed drive shaft connected to an input end of a gearbox; A screw assembly connected to the output end of the gearbox, and comprising a lower chassis connected to the gearbox, a screw shaft mounted on the lower chassis, and a screw nut sleeve threadedly engaged with the screw shaft, wherein the screw nut sleeve has support guide pillars respectively mounted on all four sides, the support guide pillars being higher than the screw shaft, and a support sheet being fixed to the upper end of the support guide pillars; an upper fixed guide sleeve, the upper fixed guide sleeve being mounted on the upper end of the screw assembly and fixed in the outer shell; An output rod is fixed to the center of the support plate, and a hinge hole is provided at the end thereof. The hinge hole is used to install a connecting rod, and the connecting rod is installed to the rear spoiler of the automobile to drive the rear spoiler of the automobile to flip.

2. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: The upper cover plate has a protruding cap portion located in the center, the protruding cap portion exposes the output rod, and a positioning handle is provided on one side of the protruding cap portion, the positioning handle has a mounting hole, and the mounting hole is fixed to the tail bracket by screws.

3. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: The screw assembly further comprises an intermediate sleeve connected to the lower chassis and the upper fixed guide sleeve, a plurality of guide grooves are arranged on the outer side of the intermediate sleeve, and the lower chassis and the upper fixed guide sleeve respectively have claws embedded in the guide grooves.

4. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: A guide plate is provided inside the upper fixed guide sleeve, and the guide plate has peripheral through holes through which the support guide columns pass, and a central through hole for mounting the upper end of the screw shaft through a bearing, wherein the support sheet is located on the upper side of the guide plate.

5. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: The lower chassis has a stepped groove for limiting the screw nut sleeve.

6. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: A sealing ring is provided between the upper cover plate and the outer shell.

7. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: The supporting guide pillars are provided in four numbers and are arranged in a circular array on the screw nut sleeve.

8. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: The lower end of the mounting base is provided with a through hole for connecting the wiring harness.

9. The electric cylinder assembly for an active rear wing of an automobile according to claim 1, characterized in that: A plurality of mounting posts extend from the edge of the mounting base.

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