A non-contact sensor for automobile tailgate

Abstract

The present application discloses a non-contact sensor for a car tailgate, belonging to the technical field of car tailgate sensors, including a controller and a sensing antenna, the sensing antenna being electrically connected to the controller, the sensing antenna being integrally formed with a thickened layer at a metal bracket close to the car shell, the thickened layer being wrapped around the sensing antenna; a fixing device for fixing the sensing antenna is provided on the car shell. In order to make the sensitivity of the sensing antenna at different positions the same, the present application integrally forms a thickened layer at a metal bracket portion of the sensing antenna close to the car, at this time, since the induction strength of the sensing antenna is positively correlated with the width of the sensing antenna, the thick bottom of the sensing antenna is enhanced by the thickened layer, thereby making the sensitivity of the sensing antenna at different positions consistent.

Description

Technical Field

[0001] The present application relates to the technical field of automobile tailgate sensors, and in particular to a non-contact sensor for automobile tailgates. Background Art

[0002] With the rapid development of the automobile industry, in order to provide a better user experience and facilitate users to open the tailgate when their hands are full of things, the foot kick sensor, as one of the sensors of the tailgate, has become mainstream with its comfort, convenience and safety.

[0003] Usually, the kick sensor includes a controller, an upper sensing antenna and a lower sensing antenna, wherein the upper sensing antenna and the lower sensing antenna are usually circular antennas or flat antennas. The inventor believes that during use, the metal bracket of the car may weaken the sensitivity of the upper sensing antenna and the lower sensing antenna, thereby making the sensitivity of the upper sensing antenna and the lower sensing antenna at different positions different. Summary of the invention

[0004] In order to ensure that the sensitivity of different positions of the sensing antenna is the same, the present application provides a non-contact sensor for a car tailgate.

[0005] The present application provides a non-contact sensor for a car tailgate using the following technical solution:

[0006] A non-contact sensor for a car tailgate comprises a controller and a sensing antenna, wherein the sensing antenna is electrically connected to the controller, a thickening layer is integrally formed on the sensing antenna at a metal bracket close to a car shell, and the thickening layer is wrapped around the sensing antenna; and a fixing device for fixing the sensing antenna is provided on the car shell.

[0007] By adopting the above technical solution, in order to make the sensitivity of the sensing antenna at different positions the same, a thickened layer is integrally formed at the metal bracket of the sensing antenna close to the car. At this time, since the induction strength of the sensing antenna is positively correlated with the width of the sensing antenna, the thick bottom of the sensing antenna is enhanced by the thickened layer, thereby making the sensitivity of the sensing antenna at different positions consistent.

[0008] Preferably, the fixing device comprises a connecting installation box, two fixed semi-rings, two connecting rods and two rotating rods, the installation box is fixedly installed on the outer shell of the automobile, an inner cavity is opened in the installation box, and a strip hole is opened on the inner side wall of the inner cavity; the two rotating rods are rotatably connected to the side wall of the inner cavity, the two connecting rods are fixedly connected to the two rotating rods in a one-to-one correspondence, and the two connecting rods are both penetrated through the strip holes; the fixed semi-ring is fixedly connected to the two connecting rods in a one-to-one correspondence, and the two fixed semi-rings are abutted against each other, and the sensing antenna is penetrated through the circular area formed by the two fixed semi-rings; the two fixed semi-rings are provided with a fastening mechanism for fixing the sensing antenna, and the installation box is provided with two limiting mechanisms for limiting the rotation direction of the two rotating rods respectively.

[0009] By adopting the above technical solution, in order to facilitate fixing the induction antenna on the car body, the induction antenna is first placed between the two fixed semi-rings, and then the two fixed semi-rings are rotated. The rotation of the fixed semi-rings drives the connecting rod to rotate, and the rotation of the connecting rod drives the rotating rod to rotate. Under the action of the two limiting mechanisms, the rotation direction of the rotating rod is limited, so that the fastening mechanisms on the two fixed semi-rings are matched with the induction antenna, thereby achieving the purpose of fixing the induction antenna.

[0010] Preferably, the limiting mechanism includes a ratchet, a pawl and a first spring, the ratchet is fixedly connected to the rotating rod; one end of the pawl is rotatably connected to the inner wall of the inner cavity, and the other end of the pawl cooperates with the ratchet; one end of the first spring is fixedly connected to the pawl, and the other end of the first spring is fixedly connected to the inner wall of the inner cavity; the installation box is also provided with a first driving component for simultaneously driving the two pawls to move.

[0011] By adopting the above technical solution, during the rotation of the rotating rod, the rotating rod drives the ratchet to rotate. At this time, the rotation direction of the ratchet is limited under the action of the pawl. At the same time, under the action of the first spring, the pawl is easily reset.

[0012] Preferably, a sliding cavity is also provided in the installation box, and the first driving assembly includes a push plate and two pull ropes, the push plate is slidably connected to the inner wall of the sliding cavity, and one end of the push plate passes through the inner wall of the sliding cavity and is located on the outside of the installation box; the two pull ropes are respectively provided corresponding to the two ratchet claws, one end of the pull rope is fixedly connected to the ratchet claw, and the other end of the pull rope is fixedly connected to the inner wall passing through the inner cavity and the push plate.

[0013] By adopting the above technical solution, in order to facilitate driving the two pawls to rotate in the direction away from the pawls, the push plate is pressed so that the push plate drives the two pull ropes to move, and the movement of the two pull ropes drives the two pawls to rotate, thereby achieving the purpose of facilitating the movement of the two pawls.

[0014] Preferably, a connecting guide rod is slidably connected in the sliding cavity, and the guide rod is slidably connected to the push plate. A second spring is also provided in the sliding cavity, one end of the second spring is fixedly connected to the push plate, and the other end of the second spring is fixedly connected to the inner wall of the sliding cavity.

[0015] By adopting the above technical solution, the guide rod is used to enhance the stability of the push plate during movement; the second spring is used to reset the push plate.

[0016] Preferably, a torsion spring is sleeved on the rotating rod, one end of the torsion spring is fixedly connected to the connecting rod, and the other end of the torsion spring is fixedly connected to the inner wall of the inner cavity.

[0017] By adopting the above technical solution and utilizing the torsion spring, the rotating rod can be easily reset.

[0018] Preferably, the fastening mechanism comprises an abutment plate and a sliding rod, the sliding rod is fixedly connected to the fixed half ring, and the abutment plate is fixedly connected to the sliding rod; a second driving component for driving the sliding rod to move is provided on the fixed half ring.

[0019] By adopting the above technical solution, when the fixed half ring is located between the two fixed half rings, the sliding rod is driven to move by the second driving component, and the movement of the sliding rod drives the abutment plate to move, so that the abutment plate abuts against the outer side of the sensing antenna, and then under the action of the two abutment plates, the sensing antenna is fixed.

[0020] Preferably, a cavity is provided in the fixed half ring, and a clearance hole communicating with the cavity is also provided on the fixed half ring; a mounting tube is fixedly sleeved on the induction antenna, and the second driving component comprises a driving rod and a driving steel cable, one end of the driving rod matches the end of the mounting tube, and the driving rod is hinged to the inner wall of the clearance hole; one end of the driving steel cable is fixedly connected to the driving rod, and the other end of the driving steel cable is fixedly connected to the sliding rod.

[0021] By adopting the above technical solution, in the process of pulling the induction antenna to move, the movement of the induction antenna drives the installation tube to move, and the movement of the installation tube pushes the end of the driving rod located outside the fixed semi-ring to move. At the same time, since the driving rod is hinged to the inner wall of the give way hole, the end of the driving rod located in the cavity moves, and the end of the driving rod located in the cavity drives the driving steel cable to move, the movement of the driving steel cable drives the sliding rod to move, and the movement of the sliding rod drives the abutment plate to move, thereby achieving the purpose of facilitating the movement of the abutment plate.

[0022] Preferably, the end of the sliding rod away from the abutment plate is fixedly connected to a third spring, and the other end of the third spring is fixedly connected to the inner wall of the cavity.

[0023] By adopting the above technical solution and utilizing the third spring, the sliding rod can be easily reset.

[0024] Preferably, a limiting plate is fixedly connected to the sliding rod.

[0025] By adopting the above technical solution and utilizing the limiting plate, the possibility of the sliding rod being separated from the fixed half ring can be reduced.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] In order to make the sensitivity of the sensing antenna at different positions the same, a thickening layer is integrally formed at the metal bracket of the sensing antenna close to the car. At this time, since the induction strength of the sensing antenna is positively correlated with the width of the sensing antenna, the thick bottom of the sensing antenna is enhanced by the thickening layer, so that the sensitivity of the sensing antenna at different positions is kept consistent;

[0028] In order to facilitate fixing the induction antenna on the car body, the induction antenna is first placed between the two fixed half rings, and then the two fixed half rings are rotated. The rotation of the fixed half rings drives the connecting rod to rotate, and the rotation of the connecting rod drives the rotating rod to rotate. Under the action of the two limiting mechanisms, the rotation direction of the rotating rod is limited, so that the fastening mechanisms on the two fixed half rings are matched with the induction antenna, thereby achieving the purpose of fixing the induction antenna;

[0029] When the fixed half ring is located between the two fixed half rings, the sliding rod is driven to move by the second driving component, and the movement of the sliding rod drives the abutment plate to move, so that the abutment plate abuts against the outer side of the sensing antenna, and then under the action of the two abutment plates, the sensing antenna is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the controller and the sensing antenna of an embodiment of the present application.

[0031] Figure 2It is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the structure of the fixing device in the embodiment of the present application.

[0033] Figure 4 It is a cross-sectional view of the installation box in the embodiment of the present application.

[0034] Figure 5 It is a structural schematic diagram highlighting the first drive component in an embodiment of the present application.

[0035] Figure 6 It is a structural schematic diagram highlighting the fastening mechanism in the embodiment of the present application.

[0036] Explanation of the accompanying drawings: 1. Automobile shell; 2. Controller; 21. Induction antenna; 22. Thickening layer; 23. Mounting tube; 3. Fixing device; 31. Mounting box; 311. Inner cavity; 312. Sliding cavity; 313. Strip hole; 32. Fixed semi-ring; 321. Cavity; 322. Make way hole; 33. Connecting rod; 34. Rotating rod; 4. Limiting mechanism; 41. Ratchet; 42. Ratchet; 43. First spring; 44. First driving assembly; 441. Push plate; 442. Pull rope; 443. Guide rod; 444. Second spring; 45. Torsion spring; 5. Fastening mechanism; 51. Abutment plate; 52. Sliding rod; 53. Second driving assembly; 531. Driving rod; 532. Driving steel cable; 54. Third spring; 55. Limiting plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The present application embodiment discloses a non-contact sensor for a car tailgate. Figure 1 and Figure 2 The non-contact sensor for the tailgate of a car includes a controller 2 and two sensing antennas 21. The controller 2 is fixedly mounted on a car shell 1. The two sensing antennas 21 are electrically connected to the controller 2. A plurality of fixing devices 3 are provided on the car shell 1. The two sensing antennas 21 are fixedly mounted on the car shell 1 through the fixing devices 3.

[0039] like Figure 1 and Figure 2 As shown, a metal bracket for enhancing the overall strength of the automobile shell 1 is installed on the automobile shell 1, and a thickening layer 22 is wrapped around the sensing antenna 21 near the metal bracket in the automobile shell 1. The thickening layer 22 is integrally formed with the sensing body line 1, and the material of the thickening layer 22 is the same as that of the sensing antenna 21.

[0040] like Figure 2 , Figure 3as well as Figure 4 As shown, each sensing antenna 21 is sleeved with a plurality of mounting tubes 23 , which are fixedly mounted on the sensing antenna 21 , and the ends of both ends of the mounting tubes 23 are provided with inclined surfaces, and the plurality of mounting tubes 23 are arranged one by one with the plurality of fixing devices 3 .

[0041] The fixing device 3 includes a mounting box 31, two fixed semi-rings 32, two connecting rods 33 and two rotating rods 34. The mounting box 31 is fixedly mounted on the automobile shell 1. An inner cavity 311 is provided inside the mounting box 31, and a strip hole 313 is provided on the top wall of the inner cavity 311. The two rotating rods 34 are both located in the inner cavity 311, and the two rotating rods 34 are both rotatably connected to the inner side wall of the inner cavity 311. The two connecting rods 33 are fixedly connected to the ends of the two rotating rods 34 in a one-to-one correspondence, and the other ends of the two connecting rods 33 are both penetrated through the strip holes 313 located outside the mounting box 31. The two fixed semi-rings 32 are fixedly connected to the ends of the two connecting rods 33 located outside the mounting box 31 in a one-to-one correspondence, and the two fixed semi-rings 32 are abutted against each other. The induction antenna 21 is penetrated through the circular area formed by the two fixed semi-rings 32.

[0042] Each rotating rod 34 is also sleeved with a torsion spring 45, one end of which is fixedly connected to the inner wall of the inner cavity 311, and the other end of which is fixedly connected to the connecting rod 33. The torsion spring 45 is provided to facilitate the resetting of the rotating rod 34.

[0043] The two fixed half rings 32 are both provided with a fastening mechanism 5 for fixing the mounting tube 23 on the induction antenna 21. The mounting box 31 is also provided with two sets of limiting mechanisms 4 for limiting the rotation direction of the two rotating rods, and the two sets of limiting mechanisms 4 are arranged one-to-one with the two rotating rods 34.

[0044] During installation of the sensing antenna 21, the sensing antenna 21 is first placed between the two fixed half rings 32, and then the two fixed half rings 32 are moved so that the two fixed half rings 32 are in contact with each other. At this time, the mounting tube 23 on the sensing antenna 21 is fixed between the two fixed half rings 32 by the action of the two fastening mechanisms 5. At the same time, due to the action of the limiting mechanism 4, the rotation direction of the rotating rod 34 is limited, thereby limiting the rotation direction of the fixed half ring 32, thereby achieving the purpose of fixing the sensing antenna 21.

[0045] like Figure 3 and Figure 4As shown, the limiting mechanism 4 includes a ratchet 41, a pawl 42 and a first spring 43. The ratchet 41 is fixedly connected to the rotating rod 34. One end of the pawl 42 is rotatably connected to the inner wall of the inner cavity 311, and the other end of the pawl 42 is matched with the ratchet 41. One end of the first spring 43 is fixedly connected to the pawl 42, and the other end of the first spring 43 is fixedly connected to the inner wall of the inner cavity 311. By providing the ratchet 41 and the pawl 42, it is convenient to limit the rotation direction of the rotating rod 34, and by providing the first spring 43, it is convenient to quickly reset the pawl 42.

[0046] like Figure 4 and Figure 5 As shown, the installation box 31 is also provided with a first driving assembly 44 for driving the two ratchets 42 to rotate at the same time. The first driving assembly 44 includes a push plate 441, two pull ropes 442, a guide rod 443 and a second spring 444. The installation box 31 is also provided with a sliding cavity 312 for the push plate 441 to slide and move. One end of the push plate 441 passes through the inner wall of the sliding cavity 312 and is located outside the installation box 31. The two pull ropes 442 are respectively provided corresponding to the two ratchets 42. One end of the pull rope 442 is fixedly connected to the ratchets 42, and the other end of the pull rope 442 passes through the inner wall of the inner cavity 311 and is located in the sliding cavity 312. The end of the pull rope 442 located in the sliding cavity 312 is fixedly connected to the push plate 441. The guide rod 443 is fixedly connected to the inner wall of the sliding cavity 312. The push plate 441 is provided with a guide groove. The guide rod 443 is slidably connected to the guide groove on the push plate 441. The second spring 444 is located in the sliding cavity 312 . The second spring 444 is sleeved on the guide rod 443 . One end of the second spring 444 is fixedly connected to the inner wall of the sliding cavity 312 , and the other end of the second spring 444 is fixedly connected to the push plate 441 .

[0047] When it is necessary to release the fixing effect of the fixing device 3 on the sensing antenna 21, first press the push plate 441 to move, and the movement of the push plate 441 drives the two pull ropes 442 to move, and the movement of the pull ropes 442 drives the two pawls 42 to rotate, so that the pawls 42 are separated from the ratchet 41. At this time, the two rotating rods 34 are reset under the action of the torsion spring 45, and the reset rotation of the rotating rod 34 drives the connecting rod 33 to rotate, and the rotation of the connecting rod 33 drives the fixed half ring 32 to rotate, so that the two fixed half rings 32 are separated from each other, thereby facilitating the release of the fixing effect of the fixing device 3 on the sensing antenna 21.

[0048] like Figure 3 and Figure 6As shown, a cavity 321 is opened on the fixed half ring 32, and the fastening mechanism 5 includes an abutment plate 51, a sliding rod 52, a third spring 54, a limit plate 55 and two sets of second driving components 53. One end of the sliding rod 52 is located in the cavity 321, and the other end of the sliding rod 52 passes through the inner wall of the cavity 321, and the sliding rod 52 is slidably connected to the fixed half ring 32, and the abutment plate 51 is fixedly connected to the end of the sliding rod 52, and the abutment plate 51 abuts against the outer peripheral surface of the mounting tube 23.

[0049] The third spring 54 is located in the cavity 321, one end of the third spring 54 is fixedly connected to the end of the sliding rod 52, and the other end of the third spring 54 is fixedly connected to the inner wall of the cavity 321. The limit plate 55 is slidably connected to the inner wall of the cavity 321, and the limit plate 55 is sleeved on the sliding rod 52, and the limit plate 55 is fixedly connected to the sliding rod 52. By providing the third spring 54, it is easy to reset the sliding rod 52, and by providing the limit plate 55, it is easy to reduce the possibility of the sliding rod 52 detaching from the fixed semi-ring 32.

[0050] like Figure 3 and Figure 6 As shown, the two opposite sides of the fixed half ring 32 are provided with clearance holes 322, and the two clearance holes 322 are both connected to the cavity 321. Two sets of second drive components 53 are arranged in a one-to-one correspondence with the two clearance holes 322. The second drive component 53 includes a drive rod 531 and a drive steel cable 532. One end of the drive rod 531 is located in the cavity 321, and the other end of the drive rod 531 passes through the clearance hole 322 to match the inclined surface of the mounting tube 23, and the drive rod 531 is hinged to the inner side wall of the clearance hole 322. One end of the drive steel cable 532 is fixedly connected to the sliding rod 52, and the other end of the drive steel cable 532 is fixedly connected to the drive rod 531.

[0051] When the mobile sensing antenna 21 is pulled along the axial direction of the two fixed half rings 32, the sensing antenna 21 drives the mounting tube 23 to move, the movement of the mounting tube 23 pushes the driving rod 531 to move, the movement of the driving rod 531 drives the driving steel cable 532 to move, the movement of the driving steel cable 532 pulls the sliding rod 52 to move, the movement of the sliding rod 52 drives the abutment plate 51 to move, so that the abutment plate 51 is pressed against the mounting tube 23, thereby enhancing the stability of the sensing antenna 21 after installation.

[0052] The implementation principle of a contactless sensor for a car tailgate in an embodiment of the present application is as follows: in order to make the sensitivity of the sensing antenna 21 at different positions the same, a thickened layer 22 is integrally formed at the metal bracket portion of the sensing antenna 21 close to the car. At this time, since the induction strength of the sensing antenna 21 is positively correlated with the width of the sensing antenna 21, the thick bottom of the sensing antenna 21 is enhanced by the thickened layer 22, thereby making the sensitivity of the sensing antenna 21 at different positions consistent.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A non-contact sensor for a car tailgate, comprising a controller (2) and a sensing antenna (21), characterized in that: The sensing antenna (21) is electrically connected to the controller (2); a thickening layer (22) is integrally formed on the sensing antenna (21) at a metal bracket close to the vehicle shell (1); the thickening layer (22) is wrapped around the sensing antenna (21); and a fixing device (3) for fixing the sensing antenna (21) is provided on the vehicle shell (1); The fixing device (3) comprises a connecting installation box (31), two fixing half rings (32), two connecting rods (33) and two rotating rods (34); the installation box (31) is fixedly installed on the automobile shell (1); an inner cavity (311) is provided in the installation box (31); a strip-shaped hole (313) is provided on the inner side wall of the inner cavity (311); the two rotating rods (34) are rotatably connected to the side wall of the inner cavity (311); the two connecting rods (33) are fixedly connected to the two rotating rods (34) in a one-to-one correspondence; and the two The connecting rods (33) are all inserted into the strip-shaped holes (313); the fixed half ring (32) is fixedly connected to the two connecting rods (33) in a one-to-one correspondence, and the two fixed half rings (32) are in contact with each other, and the sensing antenna (21) is inserted into a circular area formed by the two fixed half rings (32); the two fixed half rings (32) are each provided with a fastening mechanism (5) for fixing the sensing antenna (21), and the installation box (31) is provided with two limiting mechanisms (4) for limiting the rotation direction of the two rotating rods (34) respectively; The limiting mechanism (4) comprises a ratchet (41), a pawl (42) and a first spring (43); the ratchet (41) is fixedly connected to the rotating rod (34); one end of the pawl (42) is rotatably connected to the inner wall of the inner cavity (311), and the other end of the pawl (42) cooperates with the ratchet (41); one end of the first spring (43) is fixedly connected to the pawl (42), and the other end of the first spring (43) is fixedly connected to the inner wall of the inner cavity (311); the installation box (31) is also provided with a first driving component (44) for simultaneously driving the two pawls (42) to move; The fastening mechanism (5) comprises an abutment plate (51) and a sliding rod (52); the sliding rod (52) is fixedly connected to the fixed half ring (32); the abutment plate (51) is fixedly connected to the sliding rod (52); and a second driving component (53) for driving the sliding rod (52) to move is provided on the fixed half ring (32).

2. The non-contact sensor for a car tailgate according to claim 1, characterized in that: A sliding cavity (312) is also provided in the installation box (31), and the first driving component (44) includes a pushing plate (441) and two pull ropes (442), wherein the pushing plate (441) is slidably connected to the inner wall of the sliding cavity (312), and one end of the pushing plate (441) passes through the inner wall of the sliding cavity (312) and is located on the outer side of the installation box (31); the two pull ropes (442) are respectively arranged corresponding to the two ratchet claws (42), one end of the pull rope (442) is fixedly connected to the ratchet claw (42), and the other end of the pull rope (442) is fixedly connected to the inner wall passing through the inner cavity (311) and the pushing plate (441).

3. The non-contact sensor for a car tailgate according to claim 2, characterized in that: A connecting guide rod (443) is slidably connected in the sliding cavity (312), and the guide rod (443) is slidably connected to the pushing plate (441). A second spring (444) is also provided in the sliding cavity (312), and one end of the second spring (444) is fixedly connected to the pushing plate (441), and the other end of the second spring (444) is fixedly connected to the inner wall of the sliding cavity (312).

4. The non-contact sensor for a car tailgate according to claim 1, characterized in that: A torsion spring (45) is sleeved on the rotating rod (34), one end of the torsion spring (45) is fixedly connected to the connecting rod (33), and the other end of the torsion spring (45) is fixedly connected to the inner wall of the inner cavity (311).

5. The non-contact sensor for a car tailgate according to claim 1, characterized in that: A cavity (321) is provided in the fixed half ring (32), and a clearance hole (322) communicating with the cavity (321) is also provided on the fixed half ring (32); a mounting tube (23) is fixedly sleeved on the sensing antenna (21); the second driving component (53) comprises a driving rod (531) and a driving steel cable (532); one end of the driving rod (531) matches the end of the mounting tube (23), and the driving rod (531) is hinged to the inner wall of the clearance hole (322); one end of the driving steel cable (532) is fixedly connected to the driving rod (531), and the other end of the driving steel cable (532) is fixedly connected to the sliding rod (52).

6. The non-contact sensor for a car tailgate according to claim 5, characterized in that: The end of the sliding rod (52) away from the abutment plate (51) is fixedly connected to a third spring (54), and the other end of the third spring (54) is fixedly connected to the inner wall of the cavity (321).

7. The non-contact sensor for a car tailgate according to claim 1, characterized in that: The sliding rod (52) is fixedly connected to a limiting plate (55).

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