Hidden door handle execution device with rotary output torque

Abstract

The utility model relates to a hidden door handle executing device with rotary output torque, which comprises a lower housing, an upper housing, a motor, a motor worm, a secondary gear shaft, a straight gear, a primary gear shaft, a helical gear, an output gear and a swing arm, the motor worm is meshed with the bevel gear, the first-stage gear shaft is installed on the bevel gear, the second-stage gear shaft is installed on the straight gear, the bevel gear is meshed with the straight gear, the straight gear is meshed with the output gear, the swing arm is installed on the top of the upper housing, and the top of the output gear is in coaxial linkage with the swing arm in a threaded mode. According to the hidden type door handle executing device with the rotary type output torque, first-stage worm and gear transmission and second-stage parallel shaft transmission are adopted, output power of the motor is transmitted to 360-degree rotation of the rotary type swing arm, and the hidden type door handle executing device is simple in structure, high in transmission efficiency, low in manufacturing cost, stable in operation and low in noise.

Description

Technical Field

[0001] This utility model relates to the automotive field, and more particularly to the field of electric actuators for car door handles, specifically referring to a concealed door handle actuator with rotary output torque. Background Technology

[0002] Before the use of actuators, most door handles were fixed, protruding types. This design was not aesthetically pleasing, increased wind resistance during driving, and was less convenient to use than non-electric handles.

[0003] Concealed door handle actuators are already under development and in use, but most of them are direct-push actuators, which are noisy during operation and have many stroke limitations. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a concealed door handle actuator with rotary output torque that is simple in structure, runs smoothly, and has a wide range of applications.

[0005] To achieve the above objectives, the concealed door handle actuator with rotary output torque of this utility model is as follows:

[0006] This concealed door handle actuator with rotary output torque is characterized by comprising a lower housing, an upper housing, a motor, a motor worm gear, a secondary gear shaft, a spur gear, a primary gear shaft, a helical gear, an output gear, and a swing arm. The upper housing is mounted on the lower housing. The output shaft of the motor and the motor worm gear are press-fitted together by a tooling fixture. The motor worm gear meshes with the helical gear. The primary gear shaft is mounted on the helical gear. The secondary gear shaft is mounted on the spur gear. The helical gear meshes with the spur gear. The spur gear meshes with the output gear. The motor, motor worm gear, secondary gear shaft, spur gear, primary gear shaft, helical gear, and output gear are all mounted between the upper and lower housings. The swing arm is mounted on the top of the upper housing. The top of the output gear is coaxially connected to the swing arm via threaded connections.

[0007] Preferably, the device further includes an O-ring, which is mounted on the upper cover, and the output gear is connected to the upper cover via the O-ring.

[0008] Preferably, the device further includes a rubber ring, which is mounted on the outer ring of the lower housing.

[0009] Preferably, the device further includes self-tapping screws, and the upper cover is mounted on the lower cover by the self-tapping screws.

[0010] Preferably, the motor worm gear meshes with a helical gear, and the motor worm gear and the helical gear are driven by parallel shafts.

[0011] Preferably, the spur gear meshes with the output gear, and the spur gear and the output gear are driven by parallel shafts.

[0012] Preferably, the secondary gear shaft is fixed between the lower cover and the upper cover by a steel column, and the steel column serves as a rotating shaft.

[0013] This invention utilizes a concealed door handle actuator with rotary output torque. Through a single-stage worm gear transmission and a two-stage parallel shaft transmission, the motor's output power is transmitted to the 360-degree rotation of the rotary swing arm. This design features a simple structure, high transmission efficiency, low manufacturing cost, smooth operation, and low noise. Furthermore, the upper and lower housings and the swing arm are connected by rubber seals, providing good waterproof and dustproof protection. The actuator itself has thermal protection and stall resistance functions, and can provide a return force, offering multi-functional support for concealed door handles. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the concealed door handle actuator with rotary output torque according to the present invention.

[0015] Figure 2 This is a side view of the concealed door handle actuator with rotary output torque according to the present invention.

[0016] Figure 3 This is an exploded view of the structure of the concealed door handle actuator with rotary output torque according to this utility model.

[0017] Figure 4a This is a front view of the internal structure between the upper and lower covers of the concealed door handle actuator with rotary output torque according to this utility model.

[0018] Figure 4b This is a rear view of the internal structure between the upper and lower covers of the concealed door handle actuator with rotary output torque according to this utility model.

[0019] Figure 5a This is a front view of the multiple gear structure of the concealed door handle actuator with rotary output torque according to this utility model.

[0020] Figure 5b This is a reverse view of the multiple gear structure of the concealed door handle actuator with rotary output torque according to this utility model.

[0021] Figure 6a This is a schematic diagram of an embodiment of the concealed door handle actuator with rotary output torque according to the present invention.

[0022] Figure 6b for Figure 6a A sectional view along AA.

[0023] Figure label:

[0024] 1. Lower cover

[0025] 2. Rubber ring

[0026] 3 motors

[0027] 4. Motor worm gear

[0028] 5 Secondary gear shaft

[0029] 6 spur gears

[0030] 7. First stage gear shaft

[0031] 8. Helical gears

[0032] 9 Output gear

[0033] 10O ring

[0034] 11 Upper Cover

[0035] 12 swing arms

[0036] 13 Self-tapping screws

[0037] 21. Wire Detailed Implementation

[0038] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0039] This utility model discloses a concealed door handle actuator with rotary output torque, comprising a lower cover 1, an upper cover 11, a motor 3, a motor worm gear 4, a secondary gear shaft 5, a spur gear 6, a primary gear shaft 7, a helical gear 8, an output gear 9, and a swing arm 12. The upper cover 11 is mounted on the lower cover 1. The output shaft of the motor 3 is press-fitted to the motor worm gear 4 by a tooling fixture. The motor worm gear 4 meshes with the helical gear 8. The primary gear shaft 7 is mounted on the helical gear 8. The secondary gear shaft 5 is mounted on the spur gear 6. The helical gear 8 meshes with the spur gear 6. The spur gear 6 meshes with the output gear 9. The motor 3, motor worm gear 4, secondary gear shaft 5, spur gear 6, primary gear shaft 7, helical gear 8, and output gear 9 are all mounted between the upper cover 11 and the lower cover 1. The swing arm 12 is mounted on the top of the upper cover 11. The top of the output gear 9 is coaxially connected to the swing arm 12 via threaded connections.

[0040] In a preferred embodiment of the present invention, the device further includes an O-ring 10, which is mounted on the upper cover 11, and the output gear 9 is connected to the upper cover 11 via the O-ring 10.

[0041] In a preferred embodiment of the present invention, the device further includes a rubber ring 2, which is installed on the outer ring of the lower cover 1.

[0042] In a preferred embodiment of the present invention, the device further includes a self-tapping screw 13, and the upper cover 11 is mounted on the lower cover 1 by the self-tapping screw 13.

[0043] In a preferred embodiment of the present invention, the motor worm 4 meshes with the helical gear 8, and the motor worm 4 and the helical gear 8 are parallel shaft transmissions.

[0044] In a preferred embodiment of this utility model, the spur gear 6 meshes with the output gear 9, and the spur gear 6 and the output gear 9 are parallel shaft drives.

[0045] In a preferred embodiment of the present invention, the secondary gear shaft 5 is fixed between the lower cover 1 and the upper cover 11 by a steel column, and the steel column serves as a rotating shaft.

[0046] This utility model is an actuator that outputs rotational torque with a rotational stroke of 360 degrees. It provides electric opening power for concealed door handles, has low operating noise, and high output torque. It can be used for both electric rotating and electric sliding types of concealed door handles.

[0047] This invention provides a low-cost, low-noise, and high-efficiency solution for electric swing-out and retraction of concealed door handles for automobiles.

[0048] In a specific embodiment of this utility model, the concealed door handle actuator includes an upper cover 11 and a lower cover 1, as well as a motor 3, a motor worm gear 4, a helical gear 8, a parallel gear, an output gear 9, and a swing arm 12 installed within the housings. The output shaft of the motor 3 is connected to the motor worm gear 4, which meshes with the helical gear 8. The helical gear 8 has a lower parallel gear that meshes with the spur gear 6. The spur gear 6, in conjunction with the small gear in the upper half of the spur gear 6, meshes with the output gear 9 to further reduce speed. The output gear 9 is installed within the upper and lower housings, and its top is threaded and coaxially connected to the swing arm 12, so that the motor 3 can drive the swing arm 12 to rotate clockwise or counterclockwise through a three-stage transmission. That is, the rotation of the motor 3 drives the rotation of the motor worm gear 4, which meshes with the helical gear 8, which meshes with the spur gear 6, which meshes with the output gear 9, and the output gear 9 rotates coaxially with the swing arm 12. Thus, the rotation of the motor drives the swing arm 12 to rotate through the three-stage gear transmission. The helical gear 8 is fixed between the upper cover 11 and the lower cover 1 via a metal gear shaft.

[0049] Motor 3 is installed inside the lower cover. The amount of motor shaft movement is reasonably controlled, and the main and auxiliary motors are firmly positioned and fixed through the connection with the upper cover.

[0050] The motor worm gear 4 is made of POM material. After meshing with the helical gear 8, it becomes a parallel shaft drive. The helical gear 8 has a return force function.

[0051] The secondary gear shaft 5 is fixed in the holes of the lower cover 1 and the upper cover 11. The secondary gear shaft 5 is interference-fitted with the lower cover 1 and the upper cover 11. The secondary gear shaft 5 is made of steel and can be used as a steel column. The second-stage parallel shaft transmission uses steel columns as rotating shafts fixed to the upper and lower covers to prevent shaking during gear transmission. The parallel shaft transmission has the advantages of high transmission efficiency and low noise.

[0052] The meshing of spur gear 6 and output gear 9 still adopts parallel shaft transmission. Output gear 9 is directly assembled with the upper and lower housings. Through the tight fit with the housing, output gear 9 is connected to the top of the upper housing through O-ring 10 to achieve dust and water protection during rotation.

[0053] The swing arm 12 and the output gear 9 are connected via the top platform and then securely connected with M3 self-tapping screws using high torque electric power.

[0054] All three motors are equipped with PTC (positive characteristic thermistor) components, which can provide overheat protection and prevent the motor from burning out.

[0055] The actuator arm 12 is made of high-strength engineering plastic and can rotate 360 ​​degrees, providing full-stroke service for the concealed handle.

[0056] In this invention, the swing arm is connected to the output gear, the motor worm 4 on the motor output shaft is connected to the combined helical gear transmission, and then connected to the output gear through a first-stage parallel gear.

[0057] The installation process of this utility model is as follows:

[0058] 1. Press the motor worm gear 4 and motor 3 together using a tooling, and then place them into the lower cover 1;

[0059] 2. Install the spur gear 6 and the secondary gear shaft 5 into the lower cover 1, and apply grease to the tooth profile at the same time;

[0060] 3. Install the helical gear 8 and the first-stage gear shaft 7 into the lower cover 1, and apply grease to the tooth profile at the same time;

[0061] 4. Install the output gear 9 into the lower cover 1, and apply grease to the tooth profile at the same time;

[0062] 5. Install the O-ring 10 into the upper cover 11, and install the rubber ring 2 into the lower cover 1. Apply grease around the O-ring 10.

[0063] 6. Assemble the upper cover 11 and the lower cover 1 together, and install 5 self-tapping screws 13;

[0064] 7. Install the swing arm 12 into the output gear 9 using self-tapping screws;

[0065] 8. Place the actuator on the testing bench and test its operating sound and operating current;

[0066] 9. The actuator assembly can be installed on the concealed door handle to enable electric opening and electric return of the handle.

[0067] This utility model discloses a novel output rotary concealed door handle actuator, mainly used in automotive concealed door handles. It includes a voltage-stabilizing motor 3 and a motor worm gear 4, which drive an output gear 9 to rotate via a two-stage parallel shaft transmission. The output gear 9 and the upper cover 11 are sealed by an O-ring 10, and the lower cover 1 and the upper cover 11 are sealed by a rubber ring 2. The swing arm 12 can rotate 360 ​​degrees. When the motor passes, the 360-degree rotating swing arm 12 drives the concealed door handle to open and close.

[0068] Compared to common direct-push actuators, this invention offers better operational stability and quieter operation, provides a large thrust torque of up to 4Nm, and features thermal protection and stall resistance. It also provides anti-collision retraction for the handle assembly, offering a stable and durable power source for hidden door handles in new energy vehicles.

[0069] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0070] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0071] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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 present 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.

[0073] This invention utilizes a concealed door handle actuator with rotary output torque. Through a single-stage worm gear transmission and a two-stage parallel shaft transmission, the motor's output power is transmitted to the 360-degree rotation of the rotary swing arm. This design features a simple structure, high transmission efficiency, low manufacturing cost, smooth operation, and low noise. Furthermore, the upper and lower housings and the swing arm are connected by rubber seals, providing good waterproof and dustproof protection. The actuator itself has thermal protection and stall resistance functions, and can provide a return force, offering multi-functional support for concealed door handles.

[0074] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A concealed door handle actuator having a rotary output torque, characterized by The device includes a lower housing, an upper housing, a motor, a motor worm gear, a secondary gear shaft, a spur gear, a primary gear shaft, a helical gear, an output gear, and a swing arm. The upper housing is mounted on the lower housing. The output shaft of the motor and the motor worm gear are press-fitted together by a tooling fixture. The motor worm gear meshes with the helical gear. The primary gear shaft is mounted on the helical gear. The secondary gear shaft is mounted on the spur gear. The helical gear meshes with the spur gear. The spur gear meshes with the output gear. The motor, motor worm gear, secondary gear shaft, spur gear, primary gear shaft, helical gear, and output gear are all mounted between the upper and lower housings. The swing arm is mounted on the top of the upper housing. The top of the output gear is coaxially connected to the swing arm via threaded connections.

2. The concealed door handle actuator with rotational output torque according to claim 1, characterized in that, The device also includes an O-ring, which is mounted on the upper cover, and the output gear is connected to the upper cover via the O-ring.

3. The concealed door handle actuator with rotational output torque according to claim 1, wherein, The device also includes a rubber ring, which is installed on the outer ring of the lower cover.

4. The concealed door handle actuator with rotational output torque according to claim 1, wherein, The device also includes self-tapping screws, and the upper cover is mounted on the lower cover by the self-tapping screws.

5. The concealed door handle actuator with rotational output torque according to claim 1, wherein, The motor worm gear meshes with a helical gear, and the motor worm gear and the helical gear are driven by parallel shafts.

6. The concealed door handle actuator with rotational output torque according to claim 1, wherein, The spur gear meshes with the output gear, and the spur gear and the output gear are driven by parallel shafts.

7. The concealed door handle actuator with rotational output torque according to claim 1, wherein, The secondary gear shaft is fixed between the lower and upper covers by a steel column, which serves as the rotating shaft.

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