Flush hidden outer handle, vehicle door and vehicle

Abstract

Disclosed in the present application are a flush hidden outer handle, a vehicle door and a vehicle. The flush hidden outer handle comprises: a base in which an accommodating cavity is formed; a transmission assembly, which is arranged in the accommodating cavity and movably connected to the base and is configured to be in driving connection with a driving member; a handle, which is in transmission connection with the transmission assembly and seals the accommodating cavity, wherein when the driving member drives the transmission assembly to reciprocate, the transmission assembly drives the handle to extend from or retract into the accommodating cavity; a control lever, wherein a first end of the control lever is rotatably connected to the base, and a first transmission member is arranged on an outer wall of the control lever; a damper, which is fixedly connected to the base, wherein a second transmission member is arranged on the damper, an input shaft of the damper is connected to the second transmission member, and the second transmission member is in transmission connection with the first transmission member; a first restoring member, wherein a first end of the first restoring member is connected to the first end of the control lever, and a second end of the first restoring member is connected to the base; and a guide member, which is fixedly connected to a second end of the control lever and is in transmission connection with the transmission assembly. By using the present application, the rebound sound can be reduced, thereby improving the riding experience of customers.

Description

Flat-out hidden exterior handles, doors and vehicles

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 6, 2023, with application number 202311667970.2 and application name “Flat-out hidden external handle, door and vehicle”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of vehicle equipment, and in particular to a flat-out hidden exterior handle, a vehicle door, and a vehicle. Background Art

[0004] When closed, a car's hidden exterior handle can remain flush with the car door, making the overall car body more simple, smooth, and beautiful. Among them, the flat-out hidden exterior handle is a form of hidden exterior handle for cars. During the opening process, the handle of the exterior handle is first pushed out parallel to the car door to the pre-open position with the help of the transmission assembly under the drive of the driver. Then, one end of the handle is manually pulled to the fully open position, thereby opening the car door. After opening the car door, release the handle, the handle loses the applied external force, and automatically rebounds to the pre-open position. Then, the driver works in reverse, retracting the handle and making it flush with the car door again. In the process of the handle returning from the fully open position to the pre-open position and then from the pre-open position to the initial position, there is a rebound sound problem due to mechanical rebound, and there will be collisions between the components of the transmission assembly, producing impact noise, which affects the customer's perception experience. Summary of the Invention

[0005] In view of this, the present application provides a flat-out hidden exterior handle, a vehicle door, and a vehicle to solve the above-mentioned technical problems.

[0006] Some embodiments of the present application provide a flat-out hidden exterior handle comprising:

[0007] A base, wherein a receiving cavity is provided in the base;

[0008] A transmission assembly is disposed in the accommodating cavity, is movably connected to the base, and is used for driving connection with the driving member;

[0009] The handle is in transmission connection with the transmission assembly and covers the accommodating cavity. When the driving member drives the transmission assembly to move back and forth, the transmission assembly drives the handle to extend or retract into the accommodating cavity;

[0010] a control rod, wherein a first end of the control rod is rotatably connected to the base, and a first transmission member is provided on an outer wall of the control rod;

[0011] The damper is fixedly connected to the base, and a second transmission member is provided on the damper. The input shaft of the damper is connected to the second transmission member, and the second transmission member is in transmission connection with the first transmission member;

[0012] a first restoring member, wherein a first end of the first restoring member is connected to the first end of the control rod, and a second end of the first restoring member is connected to the base;

[0013] The guide member is fixedly connected to the second end of the control rod and is in transmission connection with the transmission assembly.

[0014] In some embodiments, the first transmission member is configured as a sector tooth, the second transmission member is configured as a gear, the sector tooth is meshed with the gear, and a rotation radius of the sector tooth is greater than a rotation radius of the gear.

[0015] In some embodiments, the ratio of the contact height between the gear and the sector teeth to the axial height of the sector teeth is 1:3-1:2.

[0016] In some embodiments, the flat-out hidden outer handle further comprises: a buffer member, the buffer member is fixedly connected to the base, and when the handle covers the accommodating cavity, the control rod abuts against the buffer member; and / or,

[0017] a sealing ring, which is circumferentially connected to the side of the accommodating cavity facing the handle and has a clearance fit with the handle; and / or,

[0018] a sealing cover plate connected to the base, covering the side of the accommodating cavity facing away from the handle; and / or,

[0019] The base is provided with drainage holes; and / or,

[0020] A limit block is fixed on the handle; a limit slot is provided in the accommodating cavity, and when the handle is opened, the limit block moves into the limit slot.

[0021] In some embodiments, a guide rail matching the moving track of the guide member is provided in the accommodating cavity, the end of the guide member facing away from the control rod is provided in the guide rail, and the guide member is slidably connected to the guide rail.

[0022] In some embodiments, the control rod is arranged on the outer side wall of the base, the base is penetrated by a guide hole matching the moving track of the guide member, and the guide member passes through the guide hole.

[0023] In some embodiments, a buffer block is provided on the inner wall of the guide through hole and / or the inner wall of the guide rail.

[0024] In some embodiments, the transmission assembly includes:

[0025] A front rotating arm, wherein a first end of the front rotating arm is rotatably connected to the base, and a second end of the front rotating arm is rotatably connected to the first end of the handle;

[0026] a second restoring member, wherein a first end of the second restoring member is connected to the first end of the front rotating arm, and a second end of the second restoring member is connected to the base;

[0027] a rear pull rod, wherein a first end of the rear pull rod is rotatably connected to the guide member, and a second end of the rear pull rod is rotatably connected to the second end of the handle;

[0028] The push rod is used to be connected to the driving member and moves back and forth under the drive of the driving member. The front rotating arm and the rear pull rod are both located on the moving path of the push rod.

[0029] In some embodiments, a first position and a second position are provided on the front rotating arm, the first position is closer to the second end of the front rotating arm than the second position, and a third position is provided on the rear pull rod. When the push rod moves under the drive of the driving member, the first position, the second position and the third position respectively abut against the push rod, and when the handle covers the accommodating cavity, the gap between the first position and the push rod is smaller than the gap between the second position and the push rod, and the gap between the second position and the push rod is smaller than the gap between the third position and the push rod.

[0030] In some embodiments, a buffer pad is fixed to the portion of the push rod that abuts against the third position.

[0031] Some embodiments of the present application further provide a vehicle door, comprising the flat-out hidden exterior handle of some of the above embodiments.

[0032] Some embodiments of the present application also provide a vehicle, comprising the vehicle doors of some of the above embodiments.

[0033] Compared with the prior art, the above technical solutions provided by this application have at least the following beneficial effects:

[0034] According to the flat-out hidden exterior handle, vehicle door, and vehicle of the present application, a first end of a first reset member is connected to a first end of a control rod, and the control rod automatically returns to its original position under the drive of the first reset member, and a guide member is connected to a second end of the control rod. During the reset process, the rotation of the control rod drives the guide member connected thereto to move in the opposite direction; the guide member is connected to a transmission assembly, and the transmission assembly is connected to a handle, so that the guide member drives the handle to return to its original position. During the process of the handle returning from the fully open position to the pre-open position and then from the pre-open position to the initial position, the second transmission member on the damper cooperates with the first transmission member on the outer wall of the control rod, and the second transmission member is connected to the input shaft of the damper, so that the force on the control rod is transmitted to the inside of the damper, causing the control rod to rotate slowly, thereby driving the guide member, transmission assembly, and handle directly or indirectly connected thereto to move slowly, so that there is no violent collision between the components of the transmission assembly, but rather slow contact, and no loud impact sound is generated. In addition, the control rod, guide member, transmission assembly, and handle move slowly, and rebound sound is reduced, thereby improving the customer's riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of a flat-out hidden exterior handle provided in some embodiments of the present application;

[0036] FIG2 is a schematic diagram of the internal structure of the flat-out hidden outer handle shown in FIG1 ;

[0037] FIG3 is a schematic diagram of the flat-out hidden outer handle shown in FIG1 from another angle;

[0038] FIG4 is a cross-sectional view of the flat-out hidden outer handle shown in FIG1 in an initial position;

[0039] FIG5 is a cross-sectional view of the flat-out hidden outer handle shown in FIG1 in a pre-opening position;

[0040] FIG6 is a cross-sectional view of the flat-out hidden outer handle shown in FIG1 in a fully open position;

[0041] FIG7 is a schematic diagram showing the connection relationship between the control lever and the rear pull rod of the flat-out hidden outer handle shown in FIG2;

[0042] FIG8 is a schematic diagram of the connection relationship between the control rod and the damper of the flat-out hidden external handle shown in FIG2;

[0043] FIG9 is a schematic diagram of the control rod of the flat-out hidden outer handle shown in FIG2 in contact with the buffer member;

[0044] FIG10 is a schematic diagram showing the connection relationship between the shaft pin and the guide rail of the flat-out hidden external handle shown in FIG2;

[0045] FIG11 is a top view of the base of the flat-out hidden outer handle shown in FIG2 ;

[0046] FIG12 is a schematic diagram of the shaft pin of the flat-out hidden outer handle shown in FIG2 passing through the guide hole of the base;

[0047] FIG13 is a schematic diagram of the clearance fit between the push rod, the front rotating arm and the rear pull rod of the flat-out hidden external handle shown in FIG4 in the initial position;

[0048] FIG14 is a schematic diagram of a limit block arranged on the handle of the flat-out hidden outer handle shown in FIG1 ;

[0049] FIG15 is a schematic diagram of the arrangement of the limiting grooves in the base of the flat-out hidden external handle shown in FIG1 ;

[0050] FIG16 is a schematic diagram of the limiting block in FIG14 moving into the limiting groove in FIG15 .

[0051] Reference numerals: 1: Base; 101: Guide through hole; 102: Accommodating chamber; 100: Transmission assembly; 2: Front rotating arm; 201: First connecting arm; 202: Second connecting arm; 3: Control rod; 301: First transmission member; 302: Slot; 303: Connecting member; 304: Connecting groove; 305: Protrusion; 306: Connecting hole; 4: Damper; 5: First reset member; 6: Guide member; 7: Rear pull rod; 8: Push rod; 9: Handle; 10: Second transmission member; 11: Buffer member; 1101: Protrusion; 12: Guide rail; 13: Buffer block; 14: Buffer pad; 15: Sealing ring; 1501: Hard rubber; 1502: Soft rubber; 16: Sealing cover; 17: Drain hole; 18: Limit block; 19: Limit strip; 20: Mounting member; 21: Driving member; A: First position; B: Second position; C: Third position. DETAILED DESCRIPTION

[0052] The specific implementation of this application is further described below with reference to the accompanying drawings.

[0053] It is easy to understand that according to the technical solution of this application, a variety of structural methods and implementation methods can be replaced with each other by those skilled in the art without changing the essential spirit of this application. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of this application and should not be regarded as the entire application or as a limitation or restriction of the technical solution of this application.

[0054] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to the structure shown in the drawings. They are relative concepts and may vary depending on the location and usage of the device. Therefore, these or other directional terms should not be interpreted as restrictive.

[0055] Figure 1 is a schematic diagram of a flat-out hidden outside handle provided in some embodiments of the present application; Figure 2 is a schematic diagram of the internal structure of the flat-out hidden outside handle shown in Figure 1; Figure 3 is a schematic diagram of the flat-out hidden outside handle shown in Figure 1 from another angle; Figure 4 is a cross-sectional view of the flat-out hidden outside handle shown in Figure 1 when it is in its initial position; Figure 5 is a cross-sectional view of the flat-out hidden outside handle shown in Figure 1 when it is in a pre-opening position; Figure 6 is a cross-sectional view of the flat-out hidden outside handle shown in Figure 1 when it is in a fully open position; Figure 7 is a schematic diagram of the connection relationship between the control rod and the rear pull rod of the flat-out hidden outside handle shown in Figure 2; Figure 8 is a schematic diagram of the connection relationship between the control rod and the damper of the flat-out hidden outside handle shown in Figure 2.

[0056] As shown in Figures 1 to 8, the flat-out hidden external handle includes a base 1, a transmission assembly 100, a handle 9, a control rod 3, a damper 4, a first reset member 5 and a guide member 6.

[0057] A accommodating chamber 102 is provided in the base 1; the transmission assembly 100 is provided in the accommodating chamber 102, is movably connected to the base 1, and is used to be driven and connected to the driving member 21; the handle 9 is transmission-connected to the transmission assembly 100 and covers the accommodating chamber 102. When the driving member 21 drives the transmission assembly 100 to move reciprocatingly, the transmission assembly 100 drives the handle 9 to extend or retract the accommodating chamber 102; the first end of the control rod 3 is rotatably connected to the base 1, and a first transmission member 301 is provided on the outer wall of the control rod 3; the damper 4 is fixedly connected to the base 1, and a second transmission member 10 is provided on the damper 4, and the input shaft of the damper 4 is connected to the second transmission member 10, and the second transmission member 10 is transmission-connected to the first transmission member 301; the first end of the first reset member 5 is connected to the first end of the control rod 3, and the second end of the first reset member 5 is connected to the base 1; the guide member 6 is fixedly connected to the second end of the control rod and is transmission-connected to the transmission assembly 100.

[0058] In the initial position, handle 9 is retracted and flush with the vehicle door, and transmission assembly 100 is retracted. To open the vehicle door, driver 21 is activated, causing it to extend transmission assembly 100 toward handle 9, thereby moving the handle horizontally toward the exterior of the vehicle body, protruding handle 9 parallel to the plane of the door. At this point, handle 9 is in the pre-opening position. As the handle moves from the initial position to the pre-opening position, transmission assembly 100 simultaneously drives guide member 6 along a predetermined trajectory. This movement of guide member 6 causes the connected control rod 3 to rotate about its first end relative to base 1, causing deformation of first reset member 5. After the handle 9 is in the pre-open position, the second end of the handle 9 is manually pulled outward, causing the handle 9 to rotate about its first end until it reaches the fully open position. This pulls the door lock cable connected to the second end of the control rod 3, unlocking the door. During this process, the handle drives the transmission assembly 100 to move, causing it to further extend. The transmission assembly 100 then drives the control rod 3 to continue rotating about its first end via the guide member 6, causing the first return member 5 to continue deforming. After the vehicle door is opened, the handle 9 is released. After the external force on the handle 9 is removed, the control rod 3 rotates in the opposite direction about its first end under the elastic force generated by the deformation of the first return member 5, thereby driving the guide member 6 connected thereto to move in the opposite direction along a predetermined trajectory. This in turn drives the transmission assembly 100 connected to the guide member 6 to retract in the opposite direction, further driving the second end of the handle 9 connected to the transmission assembly 100 to move toward the base 1. Under the elastic force of the first return member 5, the handle 9 returns to the pre-open position flush with the vehicle door. After the handle 9 returns to the pre-open position, the driver 21 is activated, causing it to reverse direction. Under the combined action of the driver 21 and the elastic force of the first return member 5, the control rod 3 continues to rotate in the reverse direction about its first end, thereby driving the guide member 6 and transmission assembly 100, which are directly or indirectly connected thereto, to continue to move in the reverse direction. Ultimately, the handle 9 is retracted parallel to the vehicle door, resealing the base 1 and maintaining it flush with the vehicle door. As the handle 9 returns from the fully open position to the pre-open position and then back to the initial position, the first transmission member 301 rotates synchronously with the control rod 3 and, through a transmission connection with the second transmission member 10, connects to the input shaft of the damper 4. This generates a return torque, and under the action of the damper 4, the control rod 3 rotates slowly, causing the guide member 6, transmission assembly 100, and handle 9, which are directly or indirectly connected thereto, to also move slowly, thus preventing excessive rebound noise.

[0059] When the flat-out hidden external handle of the present application is adopted, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected to the guide member 6 to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the second transmission member 10 on the damper 4 cooperates with the first transmission member 301 on the outer wall of the control rod 3, so that the control rod 3 rotates slowly, thereby driving the guide member 6, transmission assembly 100 and handle 9 directly or indirectly connected thereto to move slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no loud impact sound will be generated. In addition, the control rod 3, guide member 6, transmission assembly 100 and handle 9 move slowly, and the rebound sound is reduced, which can improve the customer's riding experience.

[0060] In some embodiments, as shown in FIG2 , the base 1 is a hollow cavity as a whole, and four mounting members 20 are circumferentially connected to the outer wall for connection to the vehicle door. As shown in FIG4-FIG6 , when the handle 9 is converted from the initial position to the pre-open position and then to the fully open position, the transmission assembly 100 is continuously extended; and when the handle is returned from the fully open position to the initial position, the transmission assembly 100 is continuously retracted in the opposite direction. As shown in FIG8 , the first end of the control rod 3 is rotatably connected to the base 1 by means of a hot rivet screw, and a connecting hole is provided at the second end for connecting the door lock outer pull wire. A first transmission member 301 is fixed on the outer wall of the control rod 3 near the first end. The damper 4 is fixedly connected to the base 1 within a set distance from the first transmission member 301, and the input shaft of the damper 4 passes through its upper surface and is connected to the second transmission member 10. As shown in Figure 7, the guide member 6 is a shaft pin, the upper end of the shaft pin is fixedly connected to the second end of the control rod 3 to drive the second end of the control rod 3 to rotate around its first end. The transmission assembly 100 is sleeved with a shaft pin and rotatably connected to the shaft pin. A placement groove is provided on the surface of the control rod 3 facing the transmission assembly 100. The first reset member 5 is a reset torsion spring, which is arranged in the placement groove, and its two ends are respectively connected to the base 1 and the inner wall of the placement groove, so that when the second end of the control rod 3 rotates around its first end relative to the base 1, the reset torsion spring is deformed and generates an elastic force opposite to the movement trend of the control rod 3.

[0061] In some embodiments, the first transmission member 301 is configured as a sector tooth, and the second transmission member 10 is configured as a gear. The sector tooth meshes with the gear, and the sector tooth's rotation radius is greater than the gear's rotation radius. The meshing of the sector tooth and the gear connects the damper 4 to the control rod 3, resulting in high transmission efficiency, long service life, smooth transmission, and high reliability.

[0062] As shown in Figure 8, the radius of the circle corresponding to the sector teeth is larger than the radius of the gear, so that within the arc length rotation range of the sector teeth, the gear can rotate multiple times. In addition, the axial height of the sector teeth is larger than the axial height of the gear.

[0063] In some embodiments, the ratio of the contact height between the gear and the sector teeth to the axial height of the sector teeth is 1:3-1:2. The greater the contact height between the gear and the sector teeth, the greater the contact area between them, and the greater the resistance that must be overcome during meshing rotation. After extensive testing, the inventors found that setting the height ratio within the above range allows the damping effect of the damper 4 to allow the control rod 3 to rotate slowly during the return process, while also preventing the control rod 3 from encountering excessive resistance during the return process, which would cause the return process to be too slow, and thus, the handle 9 to return too slowly.

[0064] In some embodiments, the control rod 3 and the sector-shaped tooth are integrally injection molded, as shown in Figures 8 and 10. According to the requirements of the injection molding process, an irregular protrusion 305 is formed at one end of the sector-shaped tooth, and a connecting hole 306 is provided through the protrusion 305. As shown in Figure 10, the top surface of the protrusion 305 is flush with the top surface of the sector-shaped tooth, and the height of the protrusion 305 is less than the height of the sector-shaped tooth, so that gear teeth are also arranged below the protrusion 305. When the sector-shaped tooth rotates with the control rod 3, if the protrusion 305 rotates to a position corresponding to the gear, there will be no interference between the two, and the gear will mesh with the sector-shaped tooth below the protrusion 305.

[0065] Figure 9 is a schematic diagram of the lever and buffer of the flat-out concealed exterior handle shown in Figure 2 . As shown in Figures 8 and 9 , in some embodiments, the flat-out concealed exterior handle further includes a buffer 11, which is fixedly connected to the base 1. When the handle 9 covers the accommodating cavity 102, the lever 3 abuts against the buffer 11. This arrangement allows the lever 3 to contact the buffer 11 when the handle 9 returns to its initial position. Under the action of the buffer 11, the rotational speed gradually decreases to zero, rather than instantaneously, further reducing rebound noise.

[0066] In some embodiments, as shown in Figures 8 and 9, the buffer 11 is a structural member with a trapezoidal cross-section, made of a flexible material, such as rubber, so that when the control rod 3 contacts it, a portion of the energy can be absorbed and the rotation speed gradually becomes zero. Furthermore, as shown in Figure 8, a protrusion 1101 is fixed on the end face of the buffer 11 facing the return direction of the control rod 3, which is also made of a flexible material. A slot 302 is provided on the outer wall of the control rod 3. When the control rod 3 returns to a position close to the initial position, the protrusion 1101 is inserted into the slot 302, and the friction between the two slows down the rotation speed of the control rod 3. The length range of the protrusion 1101 corresponds to the buffering process. According to the actual application, the specific shape and size of the buffer 11 can be adjusted, and other flexible materials other than rubber can also be used.

[0067] Figure 10 is a schematic diagram illustrating the connection between the pin and guide rail of the flush-mounted concealed exterior handle shown in Figure 2. As shown in Figure 10, in some embodiments, a guide rail 12 is positioned within the accommodating cavity 102, matching the trajectory of the guide member 6. The end of the guide member 6, facing away from the control rod, is positioned within the guide rail 12, with the guide member 6 slidingly connected thereto. This arrangement ensures that the guide member 6 always moves within the predetermined trajectory of the guide rail 12, preventing it from wobbling during movement. This further ensures a more stable trajectory for the handle 9, which is indirectly connected to the guide member 6, when it is extended or retracted.

[0068] In some embodiments, as shown in FIG10 , a guide rail 12 is disposed on the bottom inner wall of the base 1 . Its extended form corresponds to the predetermined movement trajectory of the guide member 6 . The lower end of the guide member 6 is inserted into the guide rail 12 , where it is constrained and limited by the guide rail 12 to prevent the guide member 6 from moving outside the predetermined movement trajectory. The specific shape, dimensions, and location of the guide rail 12 on the base 1 are adjusted as the predetermined movement trajectory of the guide member 6 changes.

[0069] Figure 11 is a top view of the base 1 of the flat-out concealed exterior handle shown in Figure 2. As shown in Figures 10 and 11, in some embodiments, the control lever 3 is disposed on the outer wall of the base 1. A guide hole 101 is formed through the base 1 to align with the movement trajectory of the guide member 6. The guide member 6 extends through the guide hole 101. This arrangement, through the cooperation of the guide hole 101 and the guide rail 12, limits the movement trajectory of the guide member 6 at both ends, further preventing the guide member 6 from shaking during movement. This, in turn, ensures a more stable trajectory for the handle 9, which is indirectly connected to the guide member 6, when it is extended or retracted.

[0070] In some embodiments, as shown in FIG10 , the control rod 3 is disposed on the upper outer wall of the base 1 . As shown in FIG11 , the upper wall of the base 1 is provided with a guide hole 101 along the predetermined movement trajectory of the guide member 6 . The guide hole 101 corresponds to the guide rail 12 . The lower end of the guide member 6 is disposed within the guide rail 12 , while its upper end passes through the guide hole 101 and is connected to the second end of the control rod 3 . The guide hole 101 and the guide rail 12 jointly constrain the movement of the guide member 6 . In some embodiments, as shown in FIG7 and FIG10 , a connector 303 is fixed to the outer wall of the control rod 3 . The connector 303 has a connecting groove 304 on a side facing the transmission assembly 100 . The upper end of the guide member 6 passes through the guide hole 101 and is inserted into the connecting groove 304 , where it is fixedly connected to the connecting groove 304 near the second end of the control rod 3 . Depending on the actual application, the specific shape and size of the guide hole 101 and its location on the base 1 can be adjusted to follow the predetermined movement trajectory of the guide member 6 .

[0071] Figure 12 is a schematic diagram of the pin of the flush-mounted concealed exterior handle shown in Figure 2 extending through the guide hole in the base. As shown in Figure 12, in some embodiments, a buffer block 13 is provided on the inner wall of the guide hole 101 and / or the inner wall of the guide rail 12. When the control lever 3 drives the guide member 6 back to its original position, the guide member 6 has a certain impact velocity. The provision of the buffer block 13 reduces the guide member 6's rotational speed as it moves within the guide hole 101 or guide rail 12, thereby minimizing impact on the inner walls of the guide hole 101 and guide rail 12 and reducing noise.

[0072] As shown in FIG12 , the solid line in the figure indicates that the guide member 6 is in the pre-open position, and the dotted line indicates that the guide member 6 is in the fully open position. In some embodiments, the buffer block 13 is made of a flexible material and is arranged on the inner wall of the guide hole 101. It is fitted on the inner wall of the guide hole 101 corresponding to the guide member 6 in the pre-open position by interference fit. In this way, when the handle 9 returns from the fully open position to the pre-open position, the guide member 6 returns from the position of the dotted line in FIG12 to the position of the solid line at a certain speed, and contacts the buffer block 13 instead of directly hitting the inner wall of the guide hole 101, thereby reducing the noise. According to the actual application, the buffer block 13 can also be arranged on the inner wall of the guide rail 12, or on the inner walls of both the guide hole 101 and the guide rail 12. The specific arrangement position of the buffer block 13 on the inner walls of the two can be adjusted.

[0073] In some embodiments, the transmission assembly 100 includes a front rotating arm 2, a second reset member (not shown), a rear pull rod 7, and a push rod 8. The first end of the front rotating arm 2 is rotatably connected to the base 1, and the second end of the front rotating arm 2 is rotatably connected to the first end of the handle 9; the first end of the second reset member is connected to the first end of the front rotating arm 2, and the second end of the second reset member is connected to the base 1; the first end of the rear pull rod 7 is rotatably connected to the guide member 6, and the second end of the rear pull rod 7 is rotatably connected to the second end of the handle 9; the push rod 8 is configured to be connected to the driving member 21 and reciprocate under the drive of the driving member 21, and the front rotating arm 2 and the rear pull rod 7 are both located on the moving path of the push rod 8.

[0074] In the initial position, handle 9 is retracted and flush with the vehicle door, with push rod 8 maintaining clearance from both the front pivot arm 2 and the rear pull rod 7. To open the vehicle door, driver 21 is activated, driving push rod 8 in a linear motion toward rear pull rod 7. During this movement, push rod 8 abuts against both front pivot arm 2 and rear pull rod 7, pushing front pivot arm 2 to rotate about its first end relative to base 1, deforming the second reset element and pushing rear pull rod 7 to rotate about guide member 6 relative to base 1. During this rotation, the second ends of the front pivot arm 2 and rear pull rod 7, both connected to handle 9, push handle 9 away from base 1, i.e., horizontally toward the exterior of the vehicle body, protruding handle 9 and protruding parallel to the plane of the vehicle door. At this point, handle 9 is in the pre-opening position. Rotation of rear pull rod 7 relative to guide member 6 simultaneously drives guide member 6 to move along a predetermined trajectory. This movement of guide member 6 drives the control rod 3 connected thereto to rotate about its first end relative to base 1, also deforming the first reset element 5. After the handle 9 is in the pre-open position, the second end of the handle 9 is manually pulled outward to rotate the handle 9 around its first end until it is in the fully open position. The door lock outer pull wire connected to the second end of the control rod 3 is pulled to unlock the door. During this process, the rear pull rod 7 rotates with the handle 9, and the abutment relationship with the push rod 8 is released. The control rod 3 continues to rotate around its first end through the guide member 6, and the front rotating arm 2 continues to rotate around its first end. The second reset member and the first reset member 5 continue to deform. After the car door is opened, the handle 9 is released. After the handle 9 loses the external force, the front rotating arm 2 rotates in the opposite direction around its first end under the action of the elastic force generated by the deformation of the second reset member and the first reset member 5, thereby driving the first end of the handle 9 connected to it to move toward the base 1; the control rod 3 rotates in the opposite direction around its first end, thereby driving the guide member 6 connected to it to move in the opposite direction along the preset trajectory, thereby driving the rear pull rod 7 connected to the guide member 6 to move accordingly, and further driving the second end of the handle 9 connected to the rear pull rod 7 to move toward the base 1, and under the action of the elastic force of the second reset member and the first reset member 5, the handle 9 is restored to the pre-opening position flush with the car door, and the rear pull rod 7 is again in contact with the push rod 8. During the process of the handle 9 returning from the fully open position to the pre-open position, the first transmission member 301 rotates synchronously with the control rod 3, and is connected to the damper 4 through the transmission connection with the second transmission member 10. The damper 4 can generate a return torque. Under the action of the damper 4, the control rod 3 rotates slowly, so that the guide member 6 and the rear pull rod 7 directly or indirectly connected thereto also move slowly, so that when the rear pull rod 7 returns to the state of abutting with the push rod 8, it will not collide with the push rod 8 quickly, and will not produce excessive impact sound.After the handle 9 returns to the pre-open position, the driver 21 is activated, causing it to drive the push rod 8 in the reverse direction. Under the elastic force of the second return member and the first return member 5, the front arm 2 continues to rotate in the reverse direction about its first end, and the control rod 3 continues to rotate in the reverse direction about its first end, thereby driving the guide member 6 and rear pull rod 7, which are directly or indirectly connected thereto, to continue to move in the reverse direction. Ultimately, the handle 9 is retracted parallel to the vehicle door, resealing the base 1 and maintaining it flush with the vehicle door. As the handle 9 returns from the fully open position to its initial position, the control rod 3, rear pull rod 7, and handle 9 all rotate slowly under the action of the damper 4, preventing excessive rebound noise.

[0075] As shown in Figures 2 and 4 to 6, the front rotating arm 2 includes a first connecting arm 201 and a second connecting arm 202 connected nearly vertically. The free end of the first connecting arm 201 is the first end of the front rotating arm 2, and the free end of the second connecting arm 202 is the second end of the front rotating arm 2. The first end of the front rotating arm 2, that is, the left end of the front rotating arm 2 in the figure is rotatably connected to the inner wall of the base 1 by means of a first axle pin. The second reset member is a reset torsion spring. The reset torsion spring is sleeved on the first axle pin, and its two ends are respectively connected to the front rotating arm 2 and the base 1, so that when the front rotating arm 2 rotates relative to the base 1 around the first axle pin, the reset torsion spring is deformed and generates an elastic force opposite to the movement trend of the front rotating arm 2. The second end of the front rotating arm 2, that is, the lower right end of the front rotating arm 2 in the figure is rotatably connected to the left end of the handle 9 near the end face of the handle 9 by means of a second axle pin. The second end of the rear pull rod 7, i.e., the right end of the rear pull rod 7 in FIG4 , is rotatably connected to the side of the handle 9 away from the end face via a third axle pin. The left end of the rear pull rod 7 in FIG7 is sleeved with a guide member 6 and rotatably connected to the guide member 6. As shown in FIG4-6 , the push rod 8 is a straight rod as a whole. The left end of the push rod 8 is drivingly connected to the driving member 21. In some embodiments, the driving member is configured as a motor, which is fixedly connected to the push rod 8 via a push rod to drive the push rod 8 to move back and forth linearly.

[0076] FIG13 is a schematic diagram illustrating the clearance fit between the push rod, the front rotating arm, and the rear pull rod of the flat-out concealed exterior handle shown in FIG4 in the initial position. As shown in FIG13 , in some embodiments, the front rotating arm 2 is provided with a first position A and a second position B, wherein the first position A is closer to the second end of the front rotating arm 2 than the second position B. The rear pull rod 7 is provided with a third position C. When the push rod 8 is driven by the driving member 21 to move, the first position A, the second position B, and the third position C respectively abut against the push rod 8. When the handle 9 covers the accommodating cavity 102, the clearance between the first position A and the push rod 8 is smaller than the clearance between the second position B and the push rod 8, and the clearance between the second position B and the push rod 8 is smaller than the clearance between the third position C and the push rod 8. This arrangement allows the push rod 8 to move linearly under the drive of the drive member 21 when the car door is opened. Compared with the rear pull rod 7, the push rod 8 contacts the front rotating arm 2 first, which is conducive to the generation of instantaneous thrust of the front rotating arm 2. Moreover, the first position A on the front rotating arm 2 near its second end contacts the push rod 8 earlier than the second position B, and the physical force arm is larger, and the instantaneous torque generated on the front rotating arm 2 is larger. When the push rod 8 pushes the front rotating arm 2, the instantaneous thrust is greater, thereby improving the ejection force of the outer handle.

[0077] As shown in Figure 13, in some embodiments, the first position A and the second position B are both located on the first connecting arm 201 of the front rotating arm 2. The surface of the first connecting arm 201 facing the push rod 8 is provided with concave structures at the first and second positions A and B, and corresponding positions on the push rod 8 are provided with protrusions. During movement of the push rod 8, the corresponding concave and protrusions engage with each other. The first position A is near the junction between the first and second connecting arms 201 and 202, while the second position B is away from the second connecting arm 202 and near the first end of the front rotating arm 2 rotatably connected to the base 1. The third position C is the end of the rear pull rod 7 facing the push rod 8. In some embodiments, in the initial state, the gap between the first position A and the push rod 8 is 0.3 mm (millimeters) to 0.5 mm, the gap between the third position C and the push rod 8 is 0.8 mm to 1.2 mm, and the gap between the second position B and the push rod 8 is somewhere in between. Depending on the actual application, the gaps between the first position A, the second position B, and the third position C and the push rod 8 can be adjusted to match.

[0078] In some embodiments, a buffer pad 14 is fixed to the portion of the push rod 8 that abuts the third position C. The buffer pad 14 is provided so that when the handle 9 returns from the fully open position to the pre-open position and the rear rod 7 and push rod 8 re-abut, they come into contact with the buffer pad 14 between them, slowing down the impact speed of the rear rod 7. This allows the rear rod 7 and push rod 8 to abut slowly rather than quickly, thereby reducing impact noise.

[0079] As shown in FIG. 4 to FIG. 6 , in some embodiments, the buffer pad 14 is fixed to the end portion of the push rod 8 facing the rear pull rod 7 and is made of a flexible material.

[0080] In some embodiments, the flat-out hidden outer handle further includes a sealing ring 15, which is circumferentially connected to the side of the accommodating cavity 102 facing the handle 9 and has a clearance fit with the handle 9. The provision of the sealing ring 15 does not affect the normal movement of the handle 9, but also prevents the internal structure of the outer handle from being exposed.

[0081] As shown in Figure 1, in some embodiments, the sealing ring 15 is composed of hard rubber 1501 and soft rubber 1502, and is made by a two-color injection molding process. A snap-fit ​​structure is provided on the hard rubber 1501, and the sealing ring 15 is installed on the base 1 using the snap-fit ​​structure. The soft rubber 1502 is a hollow annular structure, the outer wall of which is connected to the hard rubber 1501, and the inner wall is evenly matched with the handle 9, and the gap size is 0.8mm-1.5mm.

[0082] In some embodiments, the flat hidden outer handle further comprises a sealing cover plate 16, which is connected to the base 1 and covers the side of the accommodating cavity 102 facing away from the handle 9. This arrangement can improve the overall sealing performance of the outer handle.

[0083] As shown in FIG3 , in some embodiments, a sealing cover plate 16 is provided on the side of the accommodating cavity 102 facing away from the handle 9. The sealing cover plate 16 matches the cross-sectional size and shape of the accommodating cavity 102 and is snap-fitted to the base 1 via a plastic snap-fit ​​structure. Depending on the actual application, any connection method can be used between the sealing cover plate 16 and the base 1, as long as it can seal the base 1.

[0084] In some embodiments, a drainage hole 17 is provided on the base 1. The drainage hole 17 is provided to facilitate the smooth discharge of water flowing into the base 1 to the outside, to prevent water accumulation, and to prevent the accumulated water from freezing in a freezing environment and affecting the electric ejection of the handle 9.

[0085] In some embodiments, as shown in FIG3 , a drainage hole 17 is formed through the lower side wall of the base 1 , and as shown in FIG11 , a drainage hole 17 is also formed through the guide rail 12 . The number of drainage holes 17 and their specific locations on the base 1 can be adjusted according to actual application.

[0086] FIG14 is a schematic diagram of a limit block disposed on the handle of the flat-out hidden outside handle shown in FIG1 ; FIG15 is a schematic diagram of a limit slot disposed within the base of the flat-out hidden outside handle shown in FIG1 ; and FIG16 is a schematic diagram of the limit block in FIG14 being moved into the limit slot in FIG15 . As shown in FIG14-16 , in some embodiments, a limit block 18 is fixed to the handle 9 ; a limit slot is provided within the accommodating cavity 102 , and when the handle 9 is opened, the limit block 18 moves into the limit slot. When the handle 9 cannot be driven parallel to the door by the driving member 21 , manual emergency activation is required. During manual activation, the first end of the handle 9 is pressed, causing the handle 9 to rotate relative to its first end about the second axle pin connected to the front rotating arm 2 , thereby tilting the second end of the handle 9 outward. The second end of the handle 9 is then manually pulled to rotate at a large angle to open the door. During the rotation of the handle 9 relative to its first end, the limit block 18 on the handle 9 is inserted into the limit groove in the accommodating cavity 102 and moves along the limit groove to prevent the handle 9 from generating parallel displacement away from the vehicle door direction in addition to rotating around its first end.

[0087] In some embodiments, a limiting block 18 is fixed on the first end of the handle 9, that is, the front and rear sides of the left end of the handle 9 in Figure 14, and a limiting strip 19 is fixed on the upper and lower inner walls of the base 1 in Figure 15. The limiting strip 19 and the inner wall of the base 1 enclose a limiting groove. As shown in Figure 16, during the manual opening of the car door, as the handle 9 rotates, the limiting block 18 enters the limiting groove and moves in the limiting groove. When the handle 9 rotates to the door opening position, the limiting block 18 abuts against the bent limiting strip 19.

[0088] Some embodiments of the present application further provide a vehicle door, comprising the flat-out hidden exterior handle of some of the above embodiments.

[0089] When using the vehicle door of the present application, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected to the guide member 6 to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the second transmission member 10 on the damper 4 cooperates with the first transmission member 301 on the outer wall of the control rod 3, so that the control rod 3 rotates slowly, thereby driving the guide member 6, transmission assembly 100 and handle 9 directly or indirectly connected thereto to rotate slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no loud impact sound will be generated. In addition, the control rod 3, guide member 6, transmission assembly 100 and handle 9 move slowly, and the rebound sound is reduced, which can improve the customer's riding experience.

[0090] Some embodiments of the present application also provide a vehicle, comprising the vehicle doors of some of the above embodiments.

[0091] When using the vehicle of the present application, the control rod 3 automatically returns to its original position under the action of the first reset member 5, and drives the guide member 6 connected thereto to move in the opposite direction, thereby driving the handle 9 connected to the guide member 6 to return to its original position. In the process of the handle 9 returning from the fully open position to the pre-open position and then returning from the pre-open position to the initial position, the second transmission member 10 on the damper 4 cooperates with the first transmission member 301 on the outer wall of the control rod 3, so that the control rod 3 rotates slowly, thereby driving the guide member 6, transmission assembly 100 and handle 9 directly or indirectly connected thereto to rotate slowly, so that there will be no violent collision between the components of the transmission assembly 100, but slow contact, and no loud impact sound will be generated. In addition, the control rod 3, guide member 6, transmission assembly 100 and handle 9 move slowly, and the rebound sound is reduced, which can improve the customer's riding experience.

[0092] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0093] The above are only the principles and some preferred embodiments of the present application. It should be noted that, for those skilled in the art, based on the principles of the present application, several other modifications can be made, which should also be considered as the scope of protection of the present application.

Claims

1. A flat hidden external handle, characterized in that: include: A base, wherein a receiving cavity is provided in the base; A transmission assembly, the transmission assembly is disposed in the accommodating cavity, is movably connected to the base, and is used for driving connection with the driving member; A handle, the handle is in driving connection with the transmission assembly and covers the accommodating cavity, and when the driving member drives the transmission assembly to reciprocate, the transmission assembly drives the handle to extend out of or retract into the accommodating cavity; A control rod, a first end of which is rotatably connected to the base, and an outer wall of the control rod is provided with a first transmission member; A damper, the damper is fixedly connected to the base, a second transmission member is provided on the damper, an input shaft of the damper is connected to the second transmission member, and the second transmission member is transmission-connected to the first transmission member; a first restoring member, wherein a first end of the first restoring member is connected to a first end of the control rod, and a second end of the first restoring member is connected to the base; A guide member is fixedly connected to the second end of the control rod and is transmission-connected to the transmission assembly.

2. The flat hidden exterior handle according to claim 1, characterized in that: The first transmission member is configured as a sector tooth, and the second transmission member is configured as a gear. The sector tooth is meshedly connected with the gear, and a rotation radius of the sector tooth is greater than a rotation radius of the gear.

3. The flat-out hidden exterior handle according to claim 2, characterized in that: The ratio of the contact height between the gear and the sector tooth to the axial height of the sector tooth is 1:3-1:

2.

4. The flat-out hidden outer handle according to any one of claims 1 to 3, characterized in that: Also includes: a buffer member, the buffer member is fixedly connected to the base, and when the handle covers the accommodating cavity, the control rod abuts against the buffer member; and / or, a sealing ring, the sealing ring being circumferentially connected to a side of the accommodating cavity facing the handle and having a clearance fit with the handle; and / or, a sealing cover plate, the sealing cover plate being connected to the base and covering a side of the accommodating cavity facing away from the handle; and / or, The base is provided with a drainage hole; and / or, A limiting block is fixed on the handle; a limiting groove is arranged in the accommodating cavity, and when the handle is opened, the limiting block moves into the limiting groove.

5. The flat-out hidden outer handle according to any one of claims 1 to 3, characterized in that: A guide rail matching the moving track of the guide member is arranged in the accommodating cavity, one end of the guide member facing away from the control rod is arranged in the guide rail, and the guide member is slidably connected to the guide rail.

6. The flat-out hidden exterior handle according to claim 5, characterized in that: The control rod is arranged on the outer side wall of the base, the base is penetrated by a guide through hole matching the moving track of the guide member, and the guide member passes through the guide through hole.

7. The flat-out hidden exterior handle according to claim 6, characterized in that: The inner wall of the guide through hole and / or the inner wall of the guide slide rail is provided with a buffer block.

8. The flat-out hidden outer handle according to any one of claims 1 to 3, characterized in that: The transmission assembly comprises: A front rotating arm, wherein a first end of the front rotating arm is rotatably connected to the base, and a second end of the front rotating arm is rotatably connected to the first end of the handle; a second restoring member, wherein a first end of the second restoring member is connected to the first end of the front rotating arm, and a second end of the second restoring member is connected to the base; A rear pull rod, wherein a first end of the rear pull rod is rotatably connected to the guide member, and a second end of the rear pull rod is rotatably connected to a second end of the handle; A push rod is used to be drivingly connected to the driving member and reciprocate under the drive of the driving member. The front rotating arm and the rear pull rod are both located on the moving path of the push rod.

9. The flat-out hidden exterior handle according to claim 8, characterized in that: The front rotating arm is provided with a first position and a second position, the first position being closer to the second end of the front rotating arm than the second position, and the rear pulling rod is provided with a third position, and when the push rod moves under the drive of the driving member, the first position, the second position and the third position are respectively abutted against the push rod, and when the handle covers the accommodating cavity, the gap between the first position and the push rod is smaller than the gap between the second position and the push rod, and the gap between the second position and the push rod is smaller than the gap between the third position and the push rod.

10. The flat-out hidden exterior handle according to claim 9, characterized in that: A buffer pad is fixed to the portion of the push rod abutting against the third position.

11. A vehicle door, characterized in that: It comprises the flat-out hidden outer handle according to any one of claims 1 to 10.

12. A vehicle, characterized in that: The vehicle door comprises the vehicle door as claimed in claim 11.

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