Electric telescopic handle for vehicle

Abstract

An electric telescopic handle for a vehicle comprises: a handle body, a handle base, wherein the handle body is installed in the handle base; an unlocking device, which is movably arranged on the handle base, and the unlocking device is transmission-connected with the handle body and connected with a car door lock; an electric ejection device, which comprises a driving device, a pull rod, a push rod and a tilting rod; a track boss, which is fixedly arranged on the handle base and has an electric opening track surface and a mechanical opening track surface; a first guide block and a second guide block, both of which are arranged on the handle body, the first guide block forms a contactable connection with the electric opening track surface of the track boss, and the second guide block forms a contactable connection with the mechanical opening track surface of the track boss. The present invention realizes the guiding function through the cooperation of the track boss and the first guide block and the second guide block, forming two independent motion tracks, and has two operation modes of the electric ejection handle and the mechanical ejection handle, meeting the use requirements of different application scenarios.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, in particular to an electric telescopic handle for a vehicle. Background Art

[0002] At present, most car door handles are exposed and convex. On the one hand, the design needs to consider that the shape of the car door handle needs to match the side of the car body to ensure a good appearance, which causes many limitations; on the other hand, since the outer door handle is exposed as a whole, the inner and outer sides of the outer door handle are easily contaminated, and the driver's hands are easily dirty when opening the door. In addition, the convex outer door handle not only destroys the side appearance of the entire vehicle, but also causes a certain amount of wind resistance, increases the driving resistance of the car, and increases wind noise. For this reason, many manufacturers have improved the handle structure and manufactured retractable hidden handles.

[0003] Since the position of the hidden handle needs to change and it involves a dual-path structure of electric and mechanical, the number of parts increases and the structure is much more complicated compared to the traditional fixed handle. In actual use, the existing hidden handle still has many defects, such as: 1. The two operation modes of electric push handle and mechanical push handle share the same motion trajectory. In other words, due to the existing design defects, there are a lot of linkage effects between the electric part and the mechanical part, which makes the working principle and motion path of the internal parts in the two operation modes the same, while the actual mechanical push handle method does not require so many parts to participate in the movement. This makes the operation of the mechanical push handle in the existing structure too troublesome, and the mechanical press feels too heavy, especially in the horizontal push telescopic handle; 2. The current retractable hidden handle has poor air tightness due to the large number of openings; 3. The current retractable hidden handle has a large number of parts, high manufacturing cost, low product reliability and difficulty in assembly due to structural limitations. Summary of the invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention provides an electric telescopic handle for a vehicle.

[0005] The technical solution of the present invention to solve the technical problem is: an electric telescopic handle for a vehicle, comprising:

[0006] A handle body, which is flush with the outer surface of the vehicle door, and has at least a hidden state retracted into the vehicle door, an electrically pre-deployed state extended out of the vehicle door, and an electrically unlocked state and a mechanically unlocked state when the vehicle door is opened, and a first mounting portion and a second mounting portion are provided on the handle body;

[0007] A handle base, which is installed in the vehicle door, and the handle body is installed in the handle base;

[0008] An unlocking device is movably arranged on the handle base, the unlocking device is transmission-connected to the handle body and connected to the car door lock, the handle body drives the unlocking device to operate and realize the unlocking function of the car door lock; and further includes:

[0009] An electric ejection device, comprising a driving device, a pull rod, a push rod and a tilting rod; wherein the driving device is electrically connected to the driving circuit and is used to drive the handle body; one end of the pull rod is hinged to the second mounting portion, and the other end is contactably connected to the push rod, and the end of the push rod away from the pull rod is transmission-connected to the driving device; the tilting rod is hinged to the handle base, and the tilting rod is transmission-connected to the push rod and the first mounting portion respectively;

[0010] A track boss, which is fixed on the handle base and has an electric opening track surface and a mechanical opening track surface;

[0011] The first guide block and the second guide block are both arranged on the handle body, the first guide block forms a contactable connection with the electric opening track surface of the track boss, and the second guide block forms a contactable connection with the mechanical opening track surface of the track boss.

[0012] Preferably, the unlocking device is provided with a guide slot, one end of the pull rod is slidably arranged in the guide slot, the guide slot has at least a locked position, a pre-deployed position and an unlocked position, and the end of the pull rod connected to the guide slot can switch between the locked position, the pre-deployed position and the unlocked position.

[0013] Preferably, a guide slot is provided in the unlocking device, and an axle pin is provided on the pull rod, and the axle pin is passed through the guide slot.

[0014] Preferably, the unlocking device comprises an unlocking block hinged to the handle base, and an unlocking sleeve transmission-connected to the unlocking block, the unlocking block is connected to the car door lock, and the guide slot is located on the unlocking sleeve.

[0015] Preferably, the unlocking block is provided with a connecting shaft, a limiting slot is provided on the outer wall of the connecting shaft, a connecting hole is provided on the unlocking sleeve, a convex rib is provided on the inner wall of the connecting hole, and the convex rib is inserted into the limiting slot.

[0016] Preferably, the push rod is provided with a guide surface, and the tilting rod is provided with a guide protrusion matched with the guide surface, and the guide protrusion is in abutment with the guide surface.

[0017] Preferably, the guide surface on the push rod gradually descends from back to front.

[0018] Preferably, the first guide block and the second guide block are both arranged on the first mounting part, a channel for the track boss to pass through is formed between the first guide block and the second guide block, the electric opening track surface is arranged at the front end of the track boss, and the mechanical opening track surface is arranged at the lower end of the track boss.

[0019] Preferably, the end of the push rod is in contact connection with the end of the pull rod.

[0020] Preferably, one end of the push rod away from the pull rod is fixedly connected to the output end of the driving device to achieve transmission, and the tilting rod is hinged to the first mounting portion to achieve transmission.

[0021] The beneficial effects of the present invention are: 1. It has two operation modes, an electric push-out handle and a mechanical push-out handle, to meet the use requirements of different application scenarios.

[0022] 2. The guiding function is realized by the cooperation of the track boss and the first guide block and the second guide block, forming two independent motion tracks (electric opening motion track and mechanical opening motion track), that is, a single track boss realizes two functions, which greatly saves the number of parts, optimizes the connection relationship, reduces space occupancy, is very beneficial to the overall design requirements, has strong practicality, is stable and reliable to use, and has lower cost.

[0023] 3. The end of the push rod forms a contact connection with the end of the pull rod, which improves the stability of the handle body during the unfolding process and when it is maintained in the electric pre-deployment state; in the mechanical push-out handle mode, the mechanical transmission part of the handle body is separated from the electric transmission part, and the handle body can be easily lifted up and unlocked.

[0024] 4. In the mode of electric push-out of the handle, the first mounting part and the second mounting part are pushed outward at the same time through the contact cooperation between the electric opening track surface of the track boss and the first guide block, and the cooperation between the axle pin and the guide groove, thereby realizing the horizontal push-out function of the handle body and improving the stability of the handle body when it is pushed out horizontally.

[0025] 5. In the mechanical push-out handle mode, press the front end of the handle to extend one end of the handle, thereby realizing the swing-out function of the handle body, and continue to pull the rear end of the handle to open the door.

[0026] 6. The handle body is in a hidden state, hidden inside the car door, flush with the surface of the outer sheet metal, and does not protrude from the outer sheet metal, which improves the coordination between the outer handle and the entire vehicle. The overall openings are small, the air tightness is good, and the wind resistance and wind noise are effectively reduced.

[0027] 7. Simple structure, good sealing, strong practicality, high reliability, effectively reducing wind resistance and wind noise, and improving the high-end technological sense of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the handle body of the present invention in a hidden state.

[0029] Figure 2 It is a structural schematic diagram of the handle body of the present invention in an electrically-operated pre-expanded state.

[0030] Figure 3 It is a structural schematic diagram of the handle body of the present invention in an electrically unlocked state.

[0031] Figure 4 It is a structural schematic diagram of the handle body of the present invention in a mechanical unlocking state.

[0032] Figure 5 It is a schematic diagram of the working principle of the handle body of the present invention in a hidden state.

[0033] Figure 6 It is a schematic diagram of the working principle of the handle body of the present invention in an electrically-operated pre-expanded state.

[0034] Figure 7 It is a schematic diagram of the working principle of the handle body of the present invention in an electrically unlocked state.

[0035] Figure 8 It is a schematic diagram of the working principle of the handle body of the present invention in a mechanical unlocking state.

[0036] Fig. 9 It is a schematic diagram of the structure of the handle body.

[0037] Fig.10 It is a structural diagram of the handle base.

[0038] Fig.11 Schematic diagram of the working principle of the unlocking device.

[0039] Fig.12 This is an exploded view of the unlocking device. DETAILED DESCRIPTION

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] Reference Figures 1 to 12 , an electric telescopic handle for a vehicle, comprising:

[0042] A handle body 1 is arranged flush with the outer surface of the vehicle door, and the handle body 1 has at least a hidden state retracted into the vehicle door, a pre-deployed state extended out of the vehicle door, and an electric unlocking state and a mechanical unlocking state when the vehicle door is opened. The handle body 1 is provided with a first mounting portion 2 and a second mounting portion 3;

[0043] A handle base 4 is installed in the vehicle door, and the handle body 1 is installed in the handle base 4;

[0044] The unlocking device is movably arranged on the handle base 4, the unlocking device is transmission-connected with the handle body 1 and connected with the car door lock, the handle body 1 drives the unlocking device to operate and realize the unlocking function of the car door lock; and further includes:

[0045] The electric ejection device comprises a driving device 5, a pull rod 6, a push rod 7 and a tilting rod 8; wherein the driving device 5 is electrically connected to the driving circuit and is used to drive the handle body 1; one end of the pull rod 6 is hinged to the second mounting portion 3, and the other end is contactably connected to the push rod 7, and the end of the push rod 7 away from the pull rod 6 is transmission-connected to the driving device 5; the tilting rod 8 is hinged to the handle base 4, and the tilting rod 8 is transmission-connected to the push rod 7 and the first mounting portion 2 respectively;

[0046] The track boss 9 is fixed on the handle base 4 and has an electric opening track surface 10 and a mechanical opening track surface 11. Preferably, the shape of the track boss 9 is similar to the blade surface;

[0047] The first guide block 12 and the second guide block 13 are both arranged on the handle body 1 . The first guide block 12 forms a contactable connection with the electric opening track surface 10 of the track boss 9 , and the second guide block 13 forms a contactable connection with the mechanical opening track surface 11 of the track boss 9 .

[0048] Preferably, one end of the push rod 7 away from the pull rod 6 is fixedly connected to the output end of the driving device 5 to achieve transmission, and the tilting rod 8 is hinged to the first mounting portion 2 to achieve transmission.

[0049] In the present invention, the handle body can be switched from a hidden state to an electrically pre-deployed state by means of the cooperation between the electric ejection device, the track boss, and the first guide block. In short, the electric ejection device provides a thrust toward the outside of the vehicle to the first mounting portion 2 of the handle body through the tilting rod, and the second mounting portion is brought out together with the entire handle body without being affected by other forces. When ejected, the handle body can be horizontally ejected outward as a whole according to a predetermined track by means of the abutment and limiting relationship between the track boss and the first guide block. Similarly, by means of the cooperation between the track boss and the second guide block, the handle body can be tilted and swung out as a whole according to a predetermined track.

[0050] It should be noted that, when the handle body switches from the hidden state to the electric pre-deployment state, the push rod and the pull rod may not be in contact with each other, and the normal pushing out and deployment of the handle body will not be affected. Of course, during this process, the push rod can also be set to form a contact relationship with the pull rod to improve the stability of the second mounting part during the deployment process and reduce the occurrence of shaking and the like. In addition, when the handle body is in the electric pre-deployment state, the push rod is preferably set to form a contact relationship with the pull rod to improve the stability of the handle body in the electric pre-deployment state.

[0051] In this embodiment, the unlocking device is provided with a guide slot 17, one end of the pull rod 6 is slidably arranged in the guide slot 17, specifically, the pull rod 6 is provided with an axle pin 18, the axle pin 18 is inserted in the guide slot 17, the guide slot 17 has at least a locked position 20, a pre-expanded position 27 and an unlocked position 19, and the axle pin 18 can switch between the locked position 20, the pre-expanded position 27 and the unlocked position 19. When the axle pin 18 is in the pre-expanded position 27 of the guide slot 17, the unlocking device can be driven by the axle pin 18 by continuing to pull the handle body 1, so that the axle pin moves to the unlocked position 19, thereby realizing the unlocking function of the car door lock. It should also be pointed out that, from the perspective of the structure of the guide slot 17 itself, the unlocked position 19 is at the same position as the pre-expanded position 27, but the unlocked position 19 only exists when the car door is unlocked (i.e., after the unlocking sleeve 22 is rotated).

[0052] In order to better demonstrate the operating principle of the unlocking device, a specific structure of a preferred unlocking device is provided herein, which includes an unlocking block 21 hinged to the handle base 4, and an unlocking sleeve 22 transmission connected to the unlocking block 21, the unlocking block 21 is connected to the car door lock, and the guide groove 17 is located on the unlocking sleeve 22.

[0053] The unlocking block 21 and the unlocking sleeve 22 need to be connected in transmission, and the preferred structure thereof can be: a connecting shaft 23 is provided on the unlocking block 21, a limiting slot 24 is provided on the outer wall of the connecting shaft 23, a connecting hole 25 is provided on the unlocking sleeve 22, a convex rib 26 is provided on the inner wall of the connecting hole 25, and the convex rib 26 is inserted into the limiting slot 24. In the preferred structural composition, the unlocking block 21 and the unlocking sleeve 22 are two separate parts, which can reduce the difficulty and cost of manufacturing, and then through the cooperation of the convex rib 26 and the limiting slot 24, and the connecting shaft 23 and the connecting hole 25, the two are firmly assembled together, which can realize the transmission function between the unlocking sleeve 22 and the unlocking block 21, and realize the function of rotation and operation of the two.

[0054] In this embodiment, the push rod 7 is provided with a guide surface 14, and the tilting rod 8 is provided with a guide protrusion 15 adapted to the guide surface 14, the guide protrusion 15 is in contact with the guide surface 14, and the guide surface 14 on the push rod 7 gradually decreases from the back to the front. With the optimized structure of this embodiment, the push rod 7 is connected to the tilting rod 8 through the cooperation of the guide surface 14 and the guide protrusion 15. The process of use is as follows: when the handle body 1 is in a hidden state, the guide protrusion 15 is located at a low position of the guide surface 14, so the connection point between the tilting rod 8 and the handle body 1 is also at a low position, so that the handle body 1 is continuously in the retracted position; when the handle body 1 is switched from the hidden state to the electric pre-deployment state, the drive device 5 is started to drive the push rod 7 to move forward, and the guide surface 14 also moves forward at the same time as the push rod 7. The contact point between the guide protrusion 15 and the guide surface 14 changes, gradually moving from a low position to a high position, causing the tilting rod 8 to rotate with its connection with the handle base 4 as the rotation center. In this process, the connection point between the tilting rod 8 and the handle body 1 is also gradually raised, thereby pushing the handle body 1 outward.

[0055] Specifically, the first guide block 12 and the second guide block 13 are both arranged on the first mounting portion 2, and a channel 16 is formed between the first guide block 12 and the second guide block 13 for the track boss 9 to pass through. The electric opening track surface 10 is arranged at the front end of the track boss 9, and the mechanical opening track surface 11 is arranged at the lower end of the track boss 9. The setting of the channel 16 ensures that the track boss 9 can move sequentially therein, and the first guide block 12 and the second guide block 13 are respectively located on both sides of the channel 16, so that the track boss 9 can only have a guiding cooperation relationship with one of them at the same time point, effectively distinguishing the operation of the electric part and the mechanical part independently, eliminating the linkage effect of the two, and thus making the entire operation more reasonable and stable, and very convenient to operate.

[0056] Preferably, the end of the push rod 7 forms a contactable connection with the end of the pull rod 6. When the electric part is running, the end of the push rod 7 directly contacts the end of the pull rod 6 and pushes the pull rod 6 to move, realizing the push-out function of the handle body 1; after the electric part pushes the handle body 1 to the electric pre-expanded state, it is necessary to manually pull the handle body 1 to unlock the car door. In this process, the end of the push rod 7 is separated from the end of the pull rod 6, that is, the push rod 7, the drive device 5, etc. will not be linked when unlocking the car door lock, making it easier to open the handle body 1; when the electric part fails and the mechanical part is required to pop out the handle body 1, the rear end of the handle body 1 is pressed to make the front end of the handle body 1 tilt and pop out. In this process, the end of the push rod 7 is separated from the end of the pull rod 6, that is, the push rod 7, the drive device 5, etc. will not be linked when the manual mechanical opening is performed, which reduces a lot of resistance, making the operation simpler, easier and more convenient, and the opening feel is also more comfortable.

[0057] The present invention has two operation modes: electric push handle and mechanical push handle. Figures 5 to 8 The main part of the base of the lieutenant general's handle is hidden to show the working principle more clearly.

[0058] The working principle of the electric push handle is as follows: the driving device 5 is started by receiving a signal and drives the push rod 7 to move forward in the handle base 4. During the movement, the guide surface 14 on the push rod 7 also moves forward with the push rod 7, so that the contact point between the guide surface 14 and the guide protrusion 15 on the tilting rod 8 changes, gradually moving from a low position to a high position, causing the tilting rod 8 to rotate with its connection with the handle base 4 as the rotation center. During the rotation, the connection point between the tilting rod 8 and the handle body 1 is gradually raised, thereby pushing the first mounting portion 2 of the handle body 1 out of the door, and the second mounting portion is taken out with the entire handle body without being affected by other forces; in particular, during the process of electrically pushing out the handle body 1, the electric opening track surface 10 of the track boss 9 and the first guide block 12 are contacted and matched, and the shaft pin 18 and the guide slide groove 17 are matched, so that the handle body 1 can be pushed out more smoothly horizontally, and the reliability of the handle body 1 when being pushed out horizontally is improved. Finally, the user holds the horizontally pushed handle body 1 and pulls the handle body 1, and the car door lock can be unlocked through the unlocking device to open the door.

[0059] The working principle of the mechanical push handle is as follows: it is generally used when the electric push device is out of power or fails. The user manually presses the end of the handle body 1 close to the tilting rod 8 toward the inside of the vehicle, so that the handle body 1 tilts and tilts up. At this time, the mechanical opening track surface 11 of the track boss 9 contacts and cooperates with the second guide block 13 and plays an effective guiding role. Then the other end of the handle body 1 is pulled until the end of the handle body 1 can provide enough space for the key to be inserted. Finally, the key is inserted to unlock and open the door.

Claims

1. An electric telescopic handle for a vehicle, characterized in that: include: A handle body, which is flush with the outer surface of the vehicle door, and has at least a hidden state retracted into the vehicle door, an electrically pre-deployed state extended out of the vehicle door, and an electrically unlocked state and a mechanically unlocked state when the vehicle door is opened, and a first mounting portion and a second mounting portion are provided on the handle body; A handle base, which is installed in the vehicle door, and the handle body is installed in the handle base; The unlocking device is movably arranged on the handle base, the unlocking device is transmission-connected with the handle body and connected with the car door lock, the handle body drives the unlocking device to operate and realize the unlocking function of the car door lock; it is characterized by further comprising: An electric ejection device, comprising a driving device, a pull rod, a push rod and a tilting rod; wherein the driving device is electrically connected to the driving circuit and is used to drive the handle body; one end of the pull rod is hinged to the second mounting portion, and the other end is contactably connected to the push rod, and the end of the push rod away from the pull rod is transmission-connected to the driving device; the tilting rod is hinged to the handle base, and the tilting rod is transmission-connected to the push rod and the first mounting portion respectively; A track boss, which is fixed on the handle base and has an electric opening track surface and a mechanical opening track surface; A first guide block and a second guide block are both arranged on the handle body, the first guide block is in contact connection with the electric opening track surface of the track boss, and the second guide block is in contact connection with the mechanical opening track surface of the track boss; The first guide block and the second guide block are both arranged on the first mounting portion, a channel for the track boss to pass through is formed between the first guide block and the second guide block, the electric opening track surface is arranged at the front end of the track boss, the mechanical opening track surface is arranged at the lower end of the track boss, and the first guide block and the second guide block are respectively located on both sides of the channel; The end of the push rod forms a contactable connection with the end of the pull rod. When the electric part is in operation, the end of the push rod directly contacts the end of the pull rod and pushes the pull rod to move, thereby realizing the pushing-out function of the handle body. After the electric part pushes the handle body to the electric pre-deployment state, the handle body is manually pulled to unlock the door, during which the end of the push rod is separated from the end of the pull rod. When the electric part fails and the mechanical part is required to pop out the handle body, the rear end of the handle body is pressed to cause the front end of the handle body to lift up and pop out, during which the end of the push rod is separated from the end of the pull rod.

2. The electric telescopic handle for a vehicle according to claim 1, characterized in that: The unlocking device is provided with a guide slot, one end of the pull rod is slidably arranged in the guide slot, the guide slot has at least a locked position, a pre-deployed position and an unlocked position, and the end of the pull rod connected to the guide slot can switch between the locked position, the pre-deployed position and the unlocked position.

3. The electric telescopic handle for a vehicle according to claim 2, characterized in that: The unlocking device is provided with a guide slot, the pull rod is provided with an axle pin, and the axle pin is inserted into the guide slot.

4. The electric telescopic handle for a vehicle according to claim 3, characterized in that: The unlocking device comprises an unlocking block hinged to the handle base and an unlocking sleeve transmission-connected to the unlocking block; the unlocking block is connected to the car door lock, and the guide slot is located on the unlocking sleeve.

5. The electric telescopic handle for a vehicle according to claim 4, characterized in that: The unlocking block is provided with a connecting shaft, the outer wall of the connecting shaft is provided with a limit slot, the unlocking sleeve is provided with a connecting hole, the inner wall of the connecting hole is provided with a convex rib, and the convex rib is snapped into the limit slot.

6. The electric telescopic handle for a vehicle according to claim 1, characterized in that: The push rod is provided with a guide surface, the tilting rod is provided with a guide protrusion matched with the guide surface, and the guide protrusion is in abutment with the guide surface.

7. The electric telescopic handle for a vehicle according to claim 6, characterized in that: The guide surface on the push rod gradually descends from the back to the front.

8. The electric telescopic handle for a vehicle according to claim 1, characterized in that: The first guide block and the second guide block are both arranged on the first mounting portion, a channel for the track boss to pass through is formed between the first guide block and the second guide block, the electric opening track surface is arranged at the front end of the track boss, and the mechanical opening track surface is arranged at the lower end of the track boss.

9. The electric telescopic handle for a vehicle according to claim 1, characterized in that: The end of the push rod is in contactable connection with the end of the pull rod.

10. The electric telescopic handle for a vehicle according to any one of claims 1 to 9, characterized in that: One end of the push rod away from the pull rod is fixedly connected to the output end of the driving device to achieve transmission, and the tilting rod is hinged to the first mounting portion to achieve transmission.

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