A driving unit, a concealed door handle and a vehicle

Abstract

The utility model relates to the technical field of automobile parts, provide a kind of drive unit, hidden door handle and car, for driving door handle moves between storage position and unfolded position, drive unit includes: executor, its output end is provided with push block;The both ends of door handle are respectively connected with first swing arm and second swing arm, first swing arm and second swing arm are provided with connecting rod between;When push block moves along horizontal direction, for driving first swing arm rotates;First swing arm rotates and drives second swing arm synchronous rotation by connecting rod, for making door handle parallel moves between storage position and unfolded position.The setting of executor, push block, first swing arm, second swing arm and connecting rod, so that door handle can be stored in the interior of vehicle body in non-use state, effectively reduce air resistance in the process of driving.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts, specifically relating to a drive unit, a concealed door handle, and an automobile. Background Technology

[0002] Traditional exposed door handles, as part of the car's exterior, have long maintained a relatively fixed design pattern, with the handle protruding from the door surface. However, while this design is intuitive and easy to use, it has obvious drawbacks, especially in today's pursuit of high efficiency and low energy consumption.

[0003] First, protruding door handles increase air resistance when the vehicle is in motion. According to the principles of fluid dynamics, any component protruding from the vehicle's surface will disrupt airflow and create additional wind resistance. For gasoline-powered vehicles, this means higher fuel consumption; for electric vehicles, it directly relates to a reduction in driving range. Especially under high-speed driving conditions, the impact of wind resistance on energy consumption is even more significant. Therefore, in the context of pursuing longer driving ranges for electric vehicles, reducing wind resistance has become one of the key points of design optimization. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, the technical problem to be solved by this utility model is to propose a drive unit, a concealed door handle, and a car, which uses an actuator, a push block, a first rotating arm, a second rotating arm, and a connecting rod to drive the door handle to switch between a retracted position and an extended position, so that the door handle can be retracted into the car body when not in use, effectively reducing air resistance during driving.

[0005] The technical solution adopted by this utility model to solve its technical problem is to propose a driving unit for moving a door handle between a retracted position and an unfolded position, the driving unit comprising:

[0006] The actuator has a pusher block at its output end;

[0007] The door handle is connected to a first rotating arm and a second rotating arm at both ends, and a connecting rod is provided between the first rotating arm and the second rotating arm;

[0008] When the push block moves horizontally, it drives the first rotating arm to rotate; when the first rotating arm rotates, it drives the second rotating arm to rotate synchronously through the connecting rod, so that the door handle can move parallel between the storage position and the unfolded position.

[0009] In one of the aforementioned driving units, a slope is provided on one side of the push block, and an arc surface is provided on the first rotating arm, with the slope and the arc surface in sliding contact.

[0010] In one of the aforementioned drive units, a first oblong hole is provided at one end of the connecting rod, a first connecting hole is provided on the first rotating arm, and a first shaft pin passes through the first oblong hole and the first connecting hole in sequence for connecting the first rotating arm and the connecting rod.

[0011] In one of the drive units described above, a second connecting hole is provided at the end of the connecting rod away from the first rotating arm, and a third connecting hole is provided on the second rotating arm. A second shaft pin passes through the second connecting hole and the third connecting hole in sequence for connecting the connecting rod and the second rotating arm.

[0012] The technical solution adopted by this utility model to solve its technical problem is to also propose a concealed door handle, including:

[0013] One of the aforementioned driving units;

[0014] The base has an internal cavity, the door handle is disposed in the cavity, and has a storage position, an unfolded position, and a maximum unfolded position;

[0015] One end of the first rotating arm is hinged to the base, and the other end is connected to the door handle;

[0016] One end of the second rotating arm is hinged to the base, and the other end is connected to the door handle;

[0017] The unlocking element is rotatably disposed within the cavity;

[0018] When the door handle is in the extended position, the second rotating arm abuts against the unlocking member; when the door handle switches from the extended position to the maximum extended position, the linkage pushes the unlocking member to rotate, triggering the door lock tongue to release.

[0019] In one of the aforementioned concealed door handles, an arc-shaped protrusion is provided on one side of the connecting rod, and the arc-shaped protrusion slides in contact with one side of the unlocking component.

[0020] In the aforementioned concealed door handle, a second oblong hole is provided at one end of the door handle connected to the second rotating arm, and a third pivot pin is provided at one end of the second rotating arm connected to the door handle. The third pivot pin is slidably disposed in the second oblong hole for connecting the second rotating arm to the door handle.

[0021] The aforementioned concealed door handle also includes:

[0022] A first torsion spring is sleeved on one end of the first rotating arm that is hinged to the base, with one end of the first torsion spring abutting against the base and the other end abutting against the first rotating arm;

[0023] A second torsion spring is fitted onto one end of the second rotating arm and hinged to the base, with one pin of the second torsion spring abutting against the base and the other pin abutting against the second rotating arm.

[0024] In the aforementioned concealed door handle, a third torsion spring is fitted onto the unlocking component, with one pin of the third torsion spring abutting against the base and the other pin abutting against the unlocking component.

[0025] The technical solution adopted by this utility model to solve its technical problem is to also propose an automobile, including the above-mentioned hidden door handle.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) A drive unit consisting of an actuator, a push block, a first rotating arm, a second rotating arm, and a connecting rod drives the door handle to switch between a retracted position and an extended position, allowing the door handle to be retracted into the vehicle body when not in use. This effectively reduces air resistance during driving, thereby improving the vehicle's aerodynamic performance. For electric vehicles, this helps increase the driving range; for gasoline vehicles, it helps reduce fuel consumption.

[0028] (2) The push block has an inclined surface, and the first rotating arm has an arc surface. When the push block moves horizontally, the sliding contact between the inclined surface and the arc surface pushes the first rotating arm to rotate, thereby unfolding the door handle. This structure realizes a non-rigid connection transmission between the drive unit and the door handle unfolding mechanism, and features simple structure and smooth transmission. At the same time, the sliding fit avoids the high requirements for assembly precision in traditional gear or linkage transmission, effectively improving the reliability and fault tolerance of the system.

[0029] (3) After the door handle is switched from the retracted position to the extended position, the user can further pull one end to rotate it around the first rotating arm to the maximum extended position. At this time, the second rotating arm drives the unlocking component to rotate through the linkage, thereby triggering the release action of the door latch. This design integrates the door handle extension and door unlocking functions into one, improving the convenience and intelligence of use. At the same time, the unlocking action is only triggered when the door handle is fully pulled out to the maximum extended position, effectively preventing accidental activation and enhancing vehicle safety. Attached Figure Description

[0030] Figure 1 This is a 3D view of the proposed solution.

[0031] Figure 2 yes Figure 1 A 3D view showing the hidden structure and the door handle in a storage position.

[0032] Figure 3 yes Figure 2 A three-dimensional view of another orientation.

[0033] Figure 4 This is a 3D view of the door handle in the extended position in this design.

[0034] Figure 5 yes Figure 4 A 3D view of the hidden part of the structure.

[0035] Figure 6 This is a 3D view of the door handle in its fully extended position in this design.

[0036] Figure 7 yes Figure 6 A 3D view of the hidden part of the structure.

[0037] In the diagram, 1. Door handle; 2. Actuator; 3. Push block; 4. First rotating arm; 5. Second rotating arm; 6. Connecting rod; 7. Inclined surface; 8. Arc surface; 9. First oblong hole; 10. First pivot pin; 11. Second pivot pin; 12. Base; 13. Cavity; 14. Unlocking component; 15. Arc-shaped protrusion; 16. Second oblong hole; 17. Third pivot pin; 18. First torsion spring; 19. Second torsion spring; 20. Third torsion spring. Detailed Implementation

[0038] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0039] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] like Figures 1 to 7 As shown, this solution includes a drive unit for moving a door handle 1 between a retracted position and an unfolded position. The drive unit includes an actuator 2 with a push block 3 at its output end; a first rotating arm 4 and a second rotating arm 5 are respectively connected to both ends of the door handle 1, and a connecting rod 6 is provided between the first rotating arm 4 and the second rotating arm 5. When the push block 3 moves horizontally, it drives the first rotating arm 4 to rotate; when the first rotating arm 4 rotates, it drives the second rotating arm 5 to rotate synchronously through the connecting rod 6, thereby enabling the door handle 1 to move parallel between the retracted position and the unfolded position.

[0041] During operation, actuator 2 drives push block 3 to move horizontally. The movement of push block 3 causes the first rotating arm 4 to rotate, thereby causing the end of door handle 1 connected to the first rotating arm 4 to unfold outward. At the same time, the rotation of the first rotating arm 4 is transmitted to the second rotating arm 5 through connecting rod 6, causing it to rotate synchronously, thereby causing the end of door handle 1 connected to the second rotating arm 5 to unfold outward synchronously, realizing the translational switching of door handle 1 from the retracted position to the unfolded position.

[0042] The drive unit in this design allows the door handle 1 to be retracted into the vehicle body when not in use, effectively reducing air resistance during driving. For electric vehicles, this helps improve driving range; for gasoline vehicles, it helps reduce fuel consumption. Furthermore, the retracted position of the door handle 1 makes the vehicle body surface smoother, optimizing aerodynamic performance while enhancing the overall streamlined and technologically advanced look. This design not only aligns with the current automotive industry's trend towards a balance between aesthetics and performance but also better meets consumers' dual demands for vehicle appearance and intelligent features.

[0043] To achieve sliding engagement transmission between the push block 3 and the first rotating arm 4, the push block 3 has an inclined surface 7 on one side, and the first rotating arm 4 has an arc surface 8. During the movement of the push block 3, the inclined surface 7 and the arc surface 8 make sliding pressing contact. When the actuator 2 drives the push block 3 to move horizontally, the inclined surface 7 on the push block 3 makes sliding contact with the arc surface 8 on the first rotating arm 4, and the interaction force between the contact surfaces pushes the first rotating arm 4 to rotate.

[0044] To achieve the connection between the first rotating arm 4 and the connecting rod 6, one end of the connecting rod 6 is provided with a first oblong hole 9, and the first rotating arm 4 is provided with a first connecting hole. During assembly, the first pin 10 passes through the first oblong hole 9 and the first connecting hole in sequence, thereby slidably hinged the connecting rod 6 and the first rotating arm 4. The design of the first oblong hole 9 allows the first pin 10 to slide inside it, thus adapting to changes in the relative angle or positional offset between the connecting rod 6 and the first rotating arm 4 during movement, preventing the mechanism from jamming, and improving the flexibility and reliability of the transmission.

[0045] To connect the connecting rod 6 and the second rotating arm 5, a second connecting hole is provided at the end of the connecting rod 6 away from the first rotating arm 4, and a third connecting hole is provided on the second rotating arm 5. The second shaft pin 11 passes through the second connecting hole and the third connecting hole in sequence, connecting the connecting rod 6 and the second rotating arm 5 together in a fixed hinge manner.

[0046] When the first rotating arm 4 rotates under the drive of the push block 3, it drives the connecting rod 6 to move through the first shaft pin 10. The movement of the connecting rod 6 is then transmitted to the second rotating arm 5 through the second shaft pin 11, causing it to rotate synchronously with the first rotating arm 4. As a result, the two ends of the door handle 1 connected to the first rotating arm 4 and the second rotating arm 5 move synchronously, thus smoothly switching from the storage position to the unfolded position.

[0047] This solution also proposes a concealed door handle, including: a drive unit as described above; a base 12, which has a cavity 13 inside, the door handle 1 is disposed in the cavity 13, and has a retracted position, an unfolded position, and a maximum unfolded position; one end of a first rotating arm 4 is hinged to the base 12, and the other end is connected to the door handle 1; one end of a second rotating arm 5 is hinged to the base 12, and the other end is connected to the door handle 1; an unlocking member 14, which is rotatably disposed in the cavity 13; when the door handle 1 is in the unfolded position, the second rotating arm 5 abuts against the unlocking member 14; when the door handle 1 switches from the unfolded position to the maximum unfolded position, the connecting rod 6 pushes the unlocking member 14 to rotate, triggering the release of the door lock tongue.

[0048] During operation, actuator 2 drives push block 3 to move horizontally. Through the cooperation of inclined surface 7 on push block 3 and arc surface 8 on first rotating arm 4, the first rotating arm 4 is pushed to rotate around its hinge point on base 12, causing one end of door handle 1 to unfold outward from cavity 13. The rotation of the first rotating arm 4 is transmitted to the second rotating arm 5 through connecting rod 6, causing the second rotating arm 5 to rotate synchronously around its hinge point on base 12, causing the other end of door handle 1 to unfold synchronously, realizing the translational switching of door handle 1 from the retracted position to the unfolded position.

[0049] When the door handle 1 is in the extended position, the user pulls the end of the door handle 1 connected to the second rotating arm 5, causing the door handle 1 to rotate around the end hinged to the first rotating arm 4, which in turn rotates the second rotating arm 5. At this time, the second rotating arm 5 drives the unlocking component 14 to rotate via the connecting rod 6. When the unlocking component 14 rotates, it triggers the door lock tongue by pulling the rope, thus unlocking the door. Simultaneously, the rotation of the second rotating arm 5 causes a change in the angle between the connecting rod 6 and the first rotating arm 4. The first oblong hole 9 on the connecting rod 6 slides along the first pivot pin 10 to adapt to this angle change and prevent the mechanism from jamming.

[0050] To enable the connecting rod 6 to push the unlocking element 14, a circular arc-shaped protrusion 15 is provided on one side of the connecting rod 6, which makes sliding contact with one side surface of the unlocking element 14. When the door handle 1 is in the extended position, the circular arc-shaped protrusion 15 on the connecting rod contacts one side surface of the unlocking element 14. When the door handle 1 is switched from the extended position to the maximum extended position, the second rotating arm 5 drives the connecting rod 6 to move, causing the circular arc-shaped protrusion 15 on the connecting rod 6 to push the unlocking element 14 to rotate. When the unlocking element 14 rotates, it drives the pull rope connected to it to move, thereby triggering the door lock tongue to unlock. The unlocking action is only triggered when the door handle 1 is fully pulled out to the maximum extended position, avoiding accidental unlocking caused by accidental contact or interference from external foreign objects, thus enhancing the vehicle's safety protection capabilities.

[0051] More preferably, the end of the door handle 1 connected to the second rotating arm 5 is provided with a second oblong hole 16, and the end of the second rotating arm 5 connected to the door handle 1 is provided with a third shaft pin 17. The third shaft pin 17 is slidably disposed in the second oblong hole 16 to realize the slidable hinge between the second rotating arm 5 and the door handle 1.

[0052] When the door handle 1 switches from the extended position to the fully extended position, the user pulls the end of the door handle 1 connected to the second rotating arm 5, causing the door handle 1 to rotate around the end hinged to the first rotating arm 4. At this time, the third pivot pin 17 slides within the second oblong hole 16 to accommodate the change in relative position between the door handle 1 and the second rotating arm 5; simultaneously, the rotation of the door handle 1 drives the connecting rod 6 to move, causing the first pivot pin 10 to slide within the first oblong hole 9 on the connecting rod 6 to accommodate the change in angle between the connecting rod 6 and the first rotating arm 4. This sliding fit structure effectively prevents the mechanism from jamming, ensuring that the user can smoothly pull the door handle 1 to complete the unlocking action, improving the reliability and smoothness of operation.

[0053] More preferably, the concealed door handle 1 in this solution further includes: a first torsion spring 18, which is sleeved on one end of the first rotating arm 4 and hinged to the base 12, with one end of the first torsion spring 18 abutting against the base 12 and the other end abutting against the first rotating arm 4; and a second torsion spring 19, which is sleeved on one end of the second rotating arm 5 and hinged to the base 12, with one pin of the second torsion spring 19 abutting against the base 12 and the other pin abutting against the second rotating arm 5.

[0054] More preferably, a third torsion spring 20 is sleeved on the unlocking member 14, with one pin of the third torsion spring 20 abutting against the base 12 and the other pin abutting against the unlocking member 14.

[0055] When the door handle 1 switches from the retracted position to the extended position, the actuator 2 drives the first rotating arm 4 to rotate via the push block 3. At this time, the first torsion spring 18 is compressed and undergoes elastic deformation. The rotation of the first rotating arm 4 drives the second rotating arm 5 to rotate synchronously via the connecting rod 6, and the second torsion spring 19 is also compressed and undergoes elastic deformation.

[0056] When the door handle 1 is switched from the extended position to the fully extended position, the second rotating arm 5 is manually pulled by the user, and the second torsion spring 19 is further compressed and generates elastic deformation. During this process, the second rotating arm 5 drives the arc-shaped protrusion 15 on the connecting rod 6 to push the unlocking member 14 to rotate, and the third torsion spring 20 is compressed and generates elastic deformation.

[0057] When the door latch is unlocked, the user releases the door handle 1. The second torsion spring 19 returns to its elastic deformation and drives the second rotating arm 5 to rotate, thereby causing the end of the door handle 1 connected to the second rotating arm 5 to return to a state parallel to the end connected to the first rotating arm 4. At the same time, the second rotating arm 5 drives the connecting rod 6 to disengage from the unlocking member 14, the compressive force on the third torsion spring 20 disappears and it returns to its elastic deformation, thereby causing the unlocking member 14 to return to its initial position. At this time, the door handle 1 returns from the fully extended position to the extended position.

[0058] After the door handle 1 returns to the extended position, the actuator 2 reverses and drives the push block 3 to reset. The push block 3 moves away from the first rotating arm 4, causing the compressive force on the first torsion spring 18 to disappear. The first torsion spring 18 then restores its elastic deformation and drives the first rotating arm 4 back to its initial position. At the same time, the force exerted by the first rotating arm 4 on the second rotating arm 5 through the connecting rod 6 disappears, and the second torsion spring 19 further restores its elastic deformation and drives the second rotating arm 5 back to its initial position. During this process, the first rotating arm 4 and the second rotating arm 5 together drive the connecting rod 6 back to its initial position, and the door handle 1 moves from the extended position back to the retracted position.

[0059] This solution also proposes a car that includes the aforementioned concealed door handle.

[0060] It should be noted that in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly defined. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0061] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0062] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A drive unit for moving a door handle between a retracted position and an extended position, characterized in that, The driving unit includes: The actuator has a pusher block at its output end; The door handle is connected to a first rotating arm and a second rotating arm at its two ends, and a connecting rod is provided between the first rotating arm and the second rotating arm; When the push block moves horizontally, it drives the first rotating arm to rotate; when the first rotating arm rotates, it drives the second rotating arm to rotate synchronously through the connecting rod, so that the door handle can move parallel between the storage position and the unfolded position.

2. The driving unit as described in claim 1, characterized in that, One side of the push block is provided with an inclined surface, and the first rotating arm is provided with an arc surface, and the inclined surface and the arc surface are in sliding contact.

3. The driving unit as described in claim 1, characterized in that, One end of the connecting rod is provided with a first waist-shaped hole, and the first rotating arm is provided with a first connecting hole. The first shaft pin passes through the first waist-shaped hole and the first connecting hole in sequence for connecting the first rotating arm and the connecting rod.

4. The driving unit as described in claim 1, characterized in that, The connecting rod has a second connecting hole at the end away from the first rotating arm, and a third connecting hole is provided on the second rotating arm. The second shaft pin passes through the second connecting hole and the third connecting hole in sequence for connecting the connecting rod and the second rotating arm.

5. A concealed door handle, characterized in that, include: A driving unit according to any one of claims 1 to 4; The base has an internal cavity, the door handle is disposed in the cavity, and has a storage position, an unfolded position, and a maximum unfolded position; One end of the first rotating arm is hinged to the base, and the other end is connected to the door handle; One end of the second rotating arm is hinged to the base, and the other end is connected to the door handle; The unlocking element is rotatably disposed within the cavity; When the door handle is in the extended position, the second rotating arm abuts against the unlocking element; When the door handle switches from the extended position to the maximum extended position, the linkage pushes the unlocking component to rotate, triggering the door lock tongue to release.

6. A concealed door handle as described in claim 5, characterized in that, One side of the connecting rod is provided with an arc-shaped protrusion, which slides in contact with one side of the unlocking component.

7. A concealed door handle as described in claim 5, characterized in that, The door handle is provided with a second oblong hole at one end where it is connected to the second rotating arm, and a third pivot pin is provided at one end where it is connected to the door handle. The third pivot pin is slidably disposed in the second oblong hole for connecting the second rotating arm to the door handle.

8. A concealed door handle as described in claim 5, characterized in that, Also includes: A first torsion spring is sleeved on one end of the first rotating arm that is hinged to the base, with one end of the first torsion spring abutting against the base and the other end abutting against the first rotating arm; A second torsion spring is fitted onto one end of the second rotating arm and hinged to the base, with one pin of the second torsion spring abutting against the base and the other pin abutting against the second rotating arm.

9. A concealed door handle as described in claim 5, characterized in that, A third torsion spring is fitted onto the unlocking component, with one pin of the third torsion spring abutting against the base and the other pin abutting against the unlocking component.

10. A car, characterized in that, Including a concealed door handle as described in any one of claims 5 to 9.

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