Automobile air guiding device driving unit with clutch function

Abstract

The utility model relates to the field of driving unit assemblies, in particular to an automobile air guiding device driving unit with a clutch function, which is used for driving an automobile air guiding device to ascend and descend and comprises a shell, a clutch and a driving device. The power part is arranged on the shell; the output shaft is arranged on the shell and used for being in transmission connection with an automobile air guiding device; the first transmission system comprises a first driving part and a first driven part, the first driving part is connected with the power output end of the power part, and the first driving part is in transmission connection with the first driven part; the second transmission system comprises a second driving part and a second driven part, the second driving part is in coaxial transmission connection with the first driven part, and the output shaft is coaxially sleeved with the second driven part; and the elastic element is arranged on the output shaft and is in transmission connection with the output shaft and the second driven piece. The automobile air flow guiding device has the effect of avoiding the situation that torque borne by a lifting transmission structure of the automobile air flow guiding device is increased and consequently a transmission system is damaged as much as possible.

Description

Technical Field

[0001] The present application relates to the field of drive unit components, and in particular to a vehicle air guide device drive unit with a clutch function. Background Art

[0002] The automobile air deflector is an aerodynamic device installed at the rear of the automobile, mainly used to improve the stability and handling of the vehicle. During the operation of the automobile air deflector, when encountering large wind resistance or ice formation in bad weather, the torque on the transmission structure of the automobile air deflector will increase, which may easily cause damage to the transmission system. Utility Model Content

[0003] In order to solve the above problems, the present application provides a vehicle air guide device drive unit with a clutch function.

[0004] The present application provides a vehicle air guide device driving unit with a clutch function, which adopts the following technical solution:

[0005] A vehicle air guide device driving unit with a clutch function, comprising:

[0006] case;

[0007] A power member, wherein the power member is arranged on the housing;

[0008] An output shaft, arranged on the housing, for transmission connection with the automobile air guide device;

[0009] A first transmission system, wherein the first transmission system comprises a first active member and a first driven member, wherein the first active member is connected to a power output end of the power member, and the first active member is in transmission connection with the first driven member;

[0010] A second transmission system, the second transmission system comprises a second active member and a second driven member, the second active member is coaxially connected to the first driven member, and the second driven member is coaxially sleeved on the output shaft;

[0011] An elastic element is arranged on the output shaft and transmission-connects the output shaft and the second driven member.

[0012] Further, the first active member is configured as a first worm, the first driven member is configured as a first worm wheel, the second active member is configured as a second worm, and the second driven member is configured as a second worm wheel.

[0013] Further, the elastic element is configured as a tolerance ring, the tolerance ring is coaxially sleeved on the output shaft, and the second worm gear is sleeved on the tolerance ring.

[0014] Further, the tolerance ring includes a ring body and a convex portion provided on the ring body, the ring body abuts against the output shaft, and the convex portion abuts against the second worm gear.

[0015] Furthermore, an adjustment piece is arranged between the tolerance ring and the output shaft, the adjustment piece includes an annular inner part and an annular outer part, the inner part is provided with an external spline, the outer part is provided with an internal spline, the external spline is connected to the internal spline, the inner part and the output shaft are coaxially fixedly connected, and the tolerance ring is coaxially sleeved on the outer part.

[0016] Furthermore, the elastic element is configured as a disc spring, the disc spring is coaxially sleeved on the output shaft, and the disc spring is arranged between the housing and the second follower.

[0017] A vehicle air guide device driving unit with a clutch function, comprising:

[0018] case;

[0019] A power member, wherein the power member is arranged on the housing;

[0020] An output shaft, arranged on the housing, for transmission connection with the automobile air guide device;

[0021] The first transmission system comprises a first active member and a first driven member, the first active member is connected to the power output end of the power member, the first driven member is coaxially sleeved on the output shaft, and the first active member and the first driven member are in transmission connection.

[0022] Further, the first active member is configured as a first worm, and the first driven member is configured as a first worm wheel.

[0023] Further, the elastic element is configured as a tolerance ring, the tolerance ring is coaxially sleeved on the output shaft, and the first worm gear is sleeved on the tolerance ring.

[0024] Further, the tolerance ring includes a ring body and a convex portion provided on the ring body, the ring body abuts against the output shaft, and the convex portion abuts against the first worm gear.

[0025] Furthermore, an adjustment piece is arranged between the tolerance ring and the output shaft, the adjustment piece includes an annular inner part and an annular outer part, the inner part is provided with an external spline, the outer part is provided with an internal spline, the external spline is connected to the internal spline, the inner part and the output shaft are coaxially fixedly connected, and the tolerance ring is coaxially sleeved on the outer part.

[0026] Furthermore, the elastic element is configured as a disc spring, the disc spring is coaxially sleeved on the output shaft, and the disc spring is arranged between the housing and the first driven member.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, the disc spring and the second worm gear rotate relative to each other or the disc spring and the output shaft rotate relative to each other, interrupting the next step of torque transmission, thereby avoiding the entire automobile air deflector device transmission structure from being damaged due to excessive torque as much as possible; when the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the disc spring and the second worm gear remain relatively stationary, and the disc spring drives the output shaft to rotate;

[0029] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, relative rotation occurs between the tolerance ring and the second worm gear or between the tolerance ring and the output shaft, interrupting the next step of torque transmission, thereby minimizing damage to the transmission structure of the automobile air deflector device due to excessive torque; when the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the tolerance ring and the second worm gear remain relatively stationary, and the tolerance ring drives the output shaft to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a driving unit of an automobile air deflector with a clutch function in Example 1 of the present application.

[0031] Figure 2 This is a schematic diagram of the overall structure of the disc spring used in Example 1 of the present application.

[0032] Figure 3 This is a schematic diagram of the overall structure of a driving unit of an automobile air deflector device with a clutch function in Example 2 of the present application.

[0033] Figure 4 This is a schematic diagram of the overall structure of the tolerance ring in Example 2 of the present application.

[0034] Figure 5 This is a schematic diagram of the overall structure of a driving unit for an automobile air deflector with a clutch function in Example 3 of the present application.

[0035] Figure 6 This is a schematic diagram of the overall structure of the tolerance ring in Example 3 of the present application.

[0036] Figure 7 This is a schematic diagram of the overall structure of the tolerance ring in Example 3 of the present application.

[0037] Figure 8 This is a schematic diagram of the overall structure of a driving unit for an automobile air deflector with a clutch function in Example 4 of the present application.

[0038] Explanation of the accompanying drawings: 1. Housing; 3. Output shaft; 4. First worm gear set; 41. First worm wheel; 42. First worm; 5. Second worm gear set; 51. Second worm wheel; 52. Second worm; 6. Elastic element; 61. Tolerance ring; 611. Ring body; 612. Protrusion; 62. Disc spring; 7. Power part; 71. Motor; 8. Adjustment part; 81. Internal part; 82. External part; 83. Pressure block; 9. External spline; 10. Internal spline. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The embodiment of the present application discloses a vehicle air guide device driving unit with a clutch function. Example

[0041] Reference Figure 1-2 A car air deflector drive unit with a clutch function includes a housing 1, a power piece 7 arranged on the housing 1, an output shaft 3 rotatably connected to the housing 1 for transmission connection with the car air deflector, a first transmission system, a second transmission system and an elastic element 6; the first transmission system and the second transmission system can be set as a helical gear set and a worm gear set, etc. In this embodiment, the first transmission system is set as a first worm gear set 4, the second transmission system is set as a second worm gear set 5, and the power piece 7 can be set as a motor 71.

[0042] The first worm gear set 4 includes a first worm 42 connected to the power output end of the power member 7 and a first worm wheel 41 drivingly connected to the first worm 42, and the second worm gear set 5 includes a second worm 52 coaxially drivingly connected to the first worm wheel 41 and a second worm wheel 51 coaxially arranged on the output shaft 3. The elastic element 6 is arranged on the output shaft 3, and the elastic element 6 abuts against the second worm wheel 51 and the output shaft 3 to drive the output shaft 3 and the second worm wheel 51. When the torque transmitted from the second worm 52 to the second worm wheel 51 exceeds a threshold value, the elastic element 6 and the second worm wheel 51 rotate relative to each other to disconnect the transmission between the second worm wheel 51 and the second worm 52.

[0043] In this embodiment, the elastic element 6 is configured as a disc spring 62, which is coaxially sleeved on the output shaft 3. The disc spring 62 is arranged between the housing 1 and the second worm gear 51 coaxially connected to the output shaft 3. An adjustment member 8 is arranged between the disc spring 62 and the housing 1. The adjustment member 8 is configured as a pressure block 83, which is sleeved on the output shaft 3. By selecting different pressure blocks 83, the degree of fastening between the disc spring 62 and the second worm gear 51 and the output shaft 3 is different, thereby realizing the selection of the threshold value.

[0044] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, the disc spring 62 and the output shaft 3 remain relatively still and the disc spring 62 and the second worm gear 51 rotate relatively, or the output shaft 3 and the second worm gear 51 remain relatively still and the disc spring 62 and the output shaft 3 rotate relatively, thereby interrupting the next step of torque transmission, thereby minimizing damage to the transmission structure of the automobile air deflector device due to excessive torque. When the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the disc spring 62 and the second worm gear 51 remain relatively still and the disc spring 62 drives the output shaft 3 to rotate. Example

[0045] Reference Figure 3-4 , which is the second embodiment of the present utility model, is based on the previous embodiment, and is different from the previous embodiment in that the elastic element 6 and the adjusting member 8 are different.

[0046] In this embodiment, the elastic element 6 is configured as a tolerance ring 61, the tolerance ring 61 is coaxially sleeved on the output shaft 3, the second worm gear 51 is sleeved on the tolerance ring 61, the tolerance ring 61 abuts the output shaft 3 and the second worm gear 51, the tolerance ring 61 includes a ring body 611 and a convex portion 612 provided on the ring body 611, the ring body 611 abuts the output shaft 3, the convex portion 612 abuts the second worm gear 51, an adjustment member 8 is provided between the tolerance ring 61 and the output shaft 3, the adjustment member 8 includes an annular inner portion 81 and an annular outer portion 82, the inner portion 81 is provided with an external spline 9, the outer portion 82 is provided with an internal spline 10, the external spline 9 and the internal spline 10 are connected, and the inner portion 81 and the output shaft 3 are coaxially fixedly connected.

[0047] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, the tolerance ring 61 and the output shaft 3 remain relatively still and the tolerance ring 61 and the second worm gear 51 rotate relatively, or the second worm gear 51 and the output shaft 3 remain relatively still and the tolerance ring 61 and the output shaft 3 rotate relatively, interrupting the next step of torque transmission, thereby avoiding damage to the transmission structure of the entire automobile air deflector device due to excessive torque as much as possible; when the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the tolerance ring 61 and the second worm gear 51 remain relatively still and the tolerance ring 61 drives the output shaft 3 to rotate. Example

[0048] Reference Figure 5-6 A driving unit of an automobile air deflector with a clutch function includes a housing 1, a power member 7 arranged on the housing 1, an output shaft 3 rotatably connected to the housing 1 for transmission connection with the automobile air deflector, a first worm gear set 4 and an elastic element 6.

[0049] The first worm gear group 4 includes a first worm 42 connected to the power output end of the power member 7 and a first worm wheel 41 coaxially arranged on the output shaft 3, and the first worm 42 and the first worm wheel 41 are transmission connected; the elastic element 6 is arranged on the output shaft 3, and the elastic element 6 abuts against the first worm wheel 41 and the output shaft 3 to transmission connect the output shaft 3 and the first worm wheel 41. When the torque transmitted from the first worm 42 to the first worm wheel 41 exceeds a threshold value, the elastic element 6 and the first worm wheel 41 rotate relative to each other to disconnect the transmission between the first worm wheel 41 and the first worm 42.

[0050] In this embodiment, the elastic element 6 is configured as a tolerance ring 61, the tolerance ring 61 is coaxially sleeved on the output shaft 3, the first worm gear 41 is sleeved on the tolerance ring 61, the tolerance ring 61 abuts against the output shaft 3 and the first worm gear 41, the tolerance ring 61 includes a ring body 611 and a convex portion 612 provided on the ring body 611, the ring body 611 abuts against the output shaft 3, and the convex portion 612 abuts against the first worm gear 41.

[0051] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, the tolerance ring 61 and the output shaft 3 remain relatively still and the tolerance ring 61 and the first worm gear 41 rotate relatively, or the first worm gear 41 and the output shaft 3 remain relatively still and the tolerance ring 61 and the output shaft 3 rotate relatively, interrupting the next step of torque transmission, thereby avoiding damage to the transmission structure of the entire automobile air deflector device due to excessive torque as much as possible; when the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the tolerance ring 61 and the first worm gear 41 remain relatively still and the tolerance ring 61 drives the output shaft 3 to rotate. Example

[0052] Reference Figure 8 , which is the fourth embodiment of the present utility model, is based on the previous embodiment, and is different from the previous embodiment in that the elastic element 6 and the adjusting member 8 are different.

[0053] In this embodiment, the elastic element 6 is configured as a disc spring 62, which is coaxially sleeved on the output shaft 3. The disc spring 62 is arranged between the housing 1 and the first worm gear 41 coaxially connected to the output shaft 3. An adjustment member 8 is arranged between the disc spring 62 and the housing 1. The adjustment member 8 is configured as a pressure block 83, which is sleeved on the output shaft 3. By selecting different pressure blocks 83, the degree of fastening between the disc spring 62 and the first worm gear 41 and the output shaft 3 is different, thereby realizing the selection of the threshold value.

[0054] When the torque borne by the transmission structure of the automobile air deflector device is greater than a threshold value, the disc spring 62 and the output shaft 3 remain relatively still and the disc spring 62 and the first worm gear 41 rotate relatively, or the output shaft 3 and the first worm gear 41 remain relatively still and the disc spring 62 and the output shaft 3 rotate relatively, interrupting the next step of torque transmission, thereby minimizing damage to the transmission structure of the automobile air deflector device due to excessive torque; when the torque borne by the transmission structure of the automobile air deflector device is lower than a threshold value, the disc spring 62 and the first worm gear 41 remain relatively still and the disc spring 62 drives the output shaft 3 to rotate.

[0055] Correspondingly, an embodiment of the present application also provides an automobile air deflector device, which includes the above-mentioned automobile air deflector device driving unit with a clutch function. It can be understood that the automobile air deflector device can have all the technical features and technical effects of the above-mentioned automobile air deflector device driving unit, which will not be repeated here.

[0056] 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 vehicle air deflector drive unit with a clutch function, used to drive the vehicle air deflector to rise and fall, characterized in that: include: Housing (1); A power member (7), wherein the power member (7) is arranged on the housing (1); An output shaft (3) is arranged on the housing (1) and is used for transmission connection with an automobile air guide device; A first transmission system, the first transmission system comprising a first active member and a first driven member, the first active member being connected to a power output end of the power member (7), and the first active member and the first driven member being in transmission connection; A second transmission system, the second transmission system comprising a second active member and a second driven member, the second active member being coaxially connected to the first driven member, and the second driven member being coaxially sleeved on the output shaft (3); An elastic element (6), wherein the elastic element (6) is arranged on the output shaft (3) and transmission-connects the output shaft (3) and the second driven member.

2. The automobile air guide device driving unit with clutch function according to claim 1, characterized in that: The first active member is configured as a first worm (42), the first driven member is configured as a first worm wheel (41), the second active member is configured as a second worm (52), and the second driven member is configured as a second worm wheel (51).

3. The driving unit of the automobile air guide device with clutch function according to claim 2, characterized in that: The elastic element (6) is configured as a tolerance ring (61), the tolerance ring (61) is coaxially sleeved on the output shaft (3), and the second worm gear (51) is sleeved on the tolerance ring (61).

4. The driving unit of the automobile air guide device with clutch function according to claim 3, characterized in that: The tolerance ring (61) includes a ring body (611) and a convex portion (612) provided on the ring body (611), the ring body (611) abuts against the output shaft (3), and the convex portion (612) abuts against the second worm gear (51).

5. The automobile air guide device driving unit with clutch function according to claim 3, characterized in that: An adjustment member (8) is provided between the tolerance ring (61) and the output shaft (3), the adjustment member (8) comprising an annular inner portion (81) and an annular outer portion (82), the inner portion (81) being provided with an outer spline (9), the outer portion (82) being provided with an inner spline (10), the outer spline (9) and the inner spline (10) being connected, the inner portion (81) and the output shaft (3) being coaxially fixedly connected, and the tolerance ring (61) being coaxially sleeved on the outer portion (82).

6. The automobile air guide device driving unit with clutch function according to claim 1, characterized in that: The elastic element (6) is configured as a disc spring (62), the disc spring (62) is coaxially sleeved on the output shaft (3), and the disc spring (62) is arranged between the housing (1) and the second driven member.

7. A vehicle air deflector drive unit with a clutch function, used to drive the vehicle air deflector to rise and fall, characterized in that: include: Housing (1); A power member (7), wherein the power member (7) is arranged on the housing (1); An output shaft (3) is arranged on the housing (1) and is used for transmission connection with an automobile air guide device; A first transmission system, the first transmission system comprising a first active member and a first driven member, the first active member being connected to a power output end of the power member (7), the first driven member being coaxially sleeved on the output shaft (3), the first active member and the first driven member being transmission-connected, the first active member being configured as a first worm (42), and the first driven member being configured as a first worm wheel (41); An elastic element (6), wherein the elastic element (6) is arranged on the output shaft (3).

8. The automobile air guide device driving unit with clutch function according to claim 7, characterized in that: The elastic element (6) is configured as a tolerance ring (61), the tolerance ring (61) is coaxially sleeved on the output shaft (3), and the first worm gear (41) is sleeved on the tolerance ring (61).

9. The automobile air guide device driving unit with clutch function according to claim 8, characterized in that: The tolerance ring (61) includes a ring body (611) and a convex portion (612) provided on the ring body (611), the ring body (611) abuts against the output shaft (3), and the convex portion (612) abuts against the first worm gear (41).

10. The automobile air guide device driving unit with clutch function according to claim 9, characterized in that: An adjustment member (8) is provided between the tolerance ring (61) and the output shaft (3), the adjustment member (8) comprising an annular inner portion (81) and an annular outer portion (82), the inner portion (81) being provided with an outer spline (9), the outer portion (82) being provided with an inner spline (10), the outer spline (9) and the inner spline (10) being connected, the inner portion (81) and the output shaft (3) being coaxially fixedly connected, and the tolerance ring (61) being coaxially sleeved on the outer portion (82).

11. The automobile air guide device driving unit with clutch function according to claim 7, characterized in that: The elastic element (6) is configured as a disc spring (62), the disc spring (62) is coaxially sleeved on the output shaft (3), and the disc spring (62) is arranged between the housing (1) and the first driven member.

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