Miniaturized vehicle light steering drive device and miniaturized vehicle light

Abstract

This invention provides a miniaturized vehicle headlight steering drive device and a miniaturized vehicle headlight. The drive device includes a housing, a drive motor, a transmission gear assembly, and a headlight steering drive rod assembly. The drive motor has a motor body, a power output shaft, and a ring gear, with the ring gear disposed on the power output shaft. The transmission gear assembly is disposed within the housing and includes a first transmission gear meshing with the ring gear, the first transmission gear rotating about a first rotating shaft. The headlight steering drive rod assembly is rotatably disposed within the housing and includes an external tooth portion, the external tooth portion directly or indirectly meshing with the first transmission gear. The central axis, power output shaft, and first rotating shaft of the headlight steering drive rod assembly are all arranged parallel to each other, allowing for a compact spatial configuration of the headlight steering drive device, suitable for miniaturized vehicle headlights.

Description

Technical Field

[0001] The present invention relates to a vehicle light steering driving device for miniaturized vehicle lights, and more specifically, to a structurally improved vehicle light steering driving device, which has the advantage of a smaller overall volume. Background Art

[0002] The conventional automobile headlight steering drive device includes a housing, a driving motor, a worm, a helical gear and an output actuator rod. The driving motor is flat in the housing and has a power output shaft, a worm is sleeved on the end of the power output shaft of the driving motor, and the helical gear is horizontally placed in the housing. The helical gear meshes with a toothed portion of the output actuator rod to rotate the headlight and change the direction of the headlight.

[0003] The driving motor of the conventional headlight steering drive device is flat, and the axial direction of the helical gear is not parallel to the axial direction of the power output shaft of the driving motor, so the volume of the entire headlight steering drive device is relatively large. However, some of the existing new headlights have adopted LEDs, and the volume of headlights adopting LEDs is relatively small overall, and the space allowed for installing the headlight steering drive device is also limited. It can be seen that the design of the existing headlight steering drive device is not sufficient, and there is still room for improvement. Summary of the invention

[0004] One of the purposes of the present invention is to provide a miniaturized vehicle lamp steering drive device, which has a small overall volume and is suitable for smaller vehicle lamps.

[0005] In order to achieve the above objectives, this application provides the following technical solutions.

[0006] A miniaturized headlight steering drive device includes a housing, a driving motor, a transmission gear assembly and a headlight steering drive rod assembly. The driving motor is disposed in the housing and has a motor body, a power output shaft and a ring gear. The power output shaft is rotatably disposed on the motor body, and the ring gear is disposed on the power output shaft. The transmission gear assembly is disposed in the housing and includes a first transmission gear, which rotates around a first rotating shaft, and the first transmission gear meshes with the ring gear. The headlight steering drive rod assembly is rotatably disposed in the housing and includes an external tooth portion, and the external tooth portion directly or indirectly meshes with the first transmission gear of the transmission gear assembly. The headlight steering drive rod assembly has a virtual central axis, and the central axis, the power output shaft and the first rotating shaft are all arranged parallel to each other.

[0007] Through the structural design of the above-mentioned headlight steering drive device, since the power output shaft of the drive motor is parallel to the central axis of the first rotating shaft and the headlight steering drive rod assembly, the drive motor can be engaged with the transmission gear assembly and the headlight steering drive rod assembly in an upright manner, and since the above-mentioned power output shaft, the first rotating shaft and the central axis of the headlight steering drive rod assembly are all arranged parallel to each other, the drive motor and the transmission gear assembly are relatively compact in space configuration, which helps to reduce the overall volume of the headlight steering drive device and is more suitable for miniaturized headlights.

[0008] In one aspect, although the vehicle light steering drive device of the present invention is more suitable for vehicle lights using LEDs, the vehicle light steering drive device of the present invention does not exclude the applicability to other types of vehicle lights and should not be limited to the present invention.

[0009] On the other hand, the headlight steering drive rod assembly may include a rotating seat and an actuating rod. The rotating seat is cylindrical and includes an outer annular surface and an inner annular surface. The outer tooth portion is arranged on the outer annular surface. The inner annular surface of the rotating seat is provided with an internal thread and the actuating rod is provided with an external thread. The actuating rod is screwed into the internal thread of the rotating seat through the external thread.

[0010] On the other hand, the motor body has a first tangent plane and a second tangent plane which are arranged opposite to each other, the first tangent plane is parallel to the second tangent plane, and the extension range of the central axis of the headlight steering drive rod assembly and the first rotating axis are both located between the first tangent plane and the second tangent plane, so that the overall volume of the headlight steering drive device can be further reduced.

[0011] In another aspect, the first transmission gear has a first large-diameter gear portion and a first small-diameter gear portion coaxially arranged, the first large-diameter gear portion meshes with the annular teeth, and the first small-diameter gear portion meshes with the external teeth portion.

[0012] On the other hand, the transmission gear assembly also includes a plurality of second transmission gears, each of which has a plurality of second rotating shafts, which are all parallel to the axial direction of the power output shaft, the first rotating shaft and the headlight steering drive rod assembly, and the first small-diameter gear portion is meshed with the external tooth portion through the plurality of second transmission gears.

[0013] In another aspect, the headlight steering drive device further comprises a gear rack, which is mounted above the driving motor, and the first transmission gear and the plurality of second transmission gears are rotatably mounted on the gear rack. The gear rack not only facilitates the assembly workers to assemble the headlight steering drive device in a modular manner, but also helps to reduce the overall volume of the headlight steering drive device.

[0014] The present invention further provides a miniaturized vehicle lamp, which comprises a lamp holder, an LED lamp and a miniaturized vehicle lamp steering drive device. The lamp holder has a driving part. The LED lamp is arranged on the lamp holder. The end of the actuating rod is coupled to the driving part of the lamp holder. The vehicle lamp steering drive rod assembly can be driven and the actuating rod can push the driving part of the lamp holder forward or backward to rotate the lamp.

[0015] In another aspect, the lamp holder has two supporting shafts, and the LED lamp is disposed on the lamp holder via the supporting shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The detailed structure, features, assembly or use of the miniaturized vehicle lamp steering drive device will be described in the following embodiments. However, it should be understood that the embodiments and drawings described below are only exemplary and should not be used to limit the scope of the patent application of the present invention.

[0017] Figure 1 A three-dimensional diagram of a headlight and a headlight steering drive device according to an embodiment;

[0018] Figure 2 A perspective view of a vehicle light steering drive device according to an embodiment;

[0019] Figure 3 for Figure 2 Exploded diagram of

[0020] Figure 4 for Figure 2 A top view of the case cover and a portion of the gear rack are omitted;

[0021] Figure 5 for Figure 2 , which omits the box cover and a portion of the gear rack; and

[0022] Figure 6 for Figure 2 sectional view of .

[0023] Wherein, the reference numerals are:

[0024] 10: Headlight steering drive device

[0025] 20: Shell

[0026] 21: Base

[0027] 22: Box cover

[0028] 221: Opening

[0029] 30: Drive motor

[0030] 31: Motor body

[0031] 32: Power output shaft

[0032] 33: Ring gear

[0033] 34: First tangent plane

[0034] 35: Second tangent plane

[0035] 40: Transmission gear assembly

[0036] 41: First transmission gear

[0037] 411: First large diameter gear portion

[0038] 412: First small diameter gear portion

[0039] 413: First axis

[0040] 42: Second transmission gear

[0041] 421: Second large diameter gear part

[0042] 422: Second small diameter gear part

[0043] 423: Second axis

[0044] 43: Gear rack

[0045] 50: Headlight steering drive rod assembly

[0046] 51: Rotating seat

[0047] 511: Outer ring

[0048] 512: Inner ring

[0049] 513: External tooth

[0050] 514: Internal thread

[0051] 52: Actuating rod

[0052] 521: Straight rod

[0053] 522: Sleeve

[0054] 523: Screw part

[0055] 524: External thread

[0056] 6: Headlights

[0057] 7: Lamp holder

[0058] 71: Driving unit

[0059] 72: Support shaft seat

[0060] A:Central axis. DETAILED DESCRIPTION

[0061] The following is a detailed description of the technical content and features of the present invention through several examples listed below in conjunction with drawings. Directional descriptive terms such as "upper", "lower", "inner", "outer", "top", and "bottom" mentioned in this specification are only illustrative descriptive terms based on normal usage directions and are not intended to limit the scope of the claims.

[0062] In order to explain the technical features of the present invention in detail, the following embodiments are given with reference to the accompanying drawings, wherein:

[0063] like Figure 1 As shown, a miniaturized vehicle lamp steering drive device 10 provided by an embodiment of the present invention is applied to a miniaturized vehicle lamp 6, such as an LED lamp. The LED lamp is disposed on a lamp holder 7. The lamp holder 7 is in a rectangular frame structure, and a driving portion 71 is disposed at a corner of the rectangular frame. The lamp holder 7 also has two support shaft seats 72. The LED lamp is fixed to the vehicle frame via the support shaft seats 72, so that when the vehicle lamp steering drive device 10 pushes the driving portion 71 of the lamp holder 7 forward or backward, the LED lamp can be adjusted to change the irradiation direction of the LED lamp. Please refer to Figure 3 The vehicle light steering driving device 10 includes a housing 20 , a driving motor 30 , a transmission gear assembly 40 and a vehicle light steering driving rod assembly 50 .

[0064] The housing 20 includes a base 21 and a cover 22 . The driving motor 30 and the vehicle light steering driving rod assembly 50 are arranged side by side on the base 21 . The cover 22 is installed on the base 21 and has an opening 221 .

[0065] The driving motor 30 is disposed in the housing 20 and has a motor body 31, a power output shaft 32 and a ring gear 33. The motor body 31 is provided with a rotor, a stator and other components. The power output shaft 32 is rotatably disposed on the motor body 31. The ring gear 33 is disposed around the power output shaft 32 of the driving motor 30. The motor body 31 has a first tangent plane 34 and a second tangent plane 35 (such as Figure 4 As shown), the first tangent plane 34 is parallel to the second tangent plane 35, and the two opposite outer surfaces of the box cover 22 are adjacent to the first tangent plane 34 and the second tangent plane 35 in a relatively close manner, so that the volume of the entire vehicle light steering drive device 10 can be smaller.

[0066] Please refer to Figures 3 to 5The transmission gear assembly 40 is disposed in the housing 20 and on the driving motor 30 . The transmission gear assembly 40 includes a first transmission gear 41 and a plurality of second transmission gears 42 a - 42 d . In this embodiment, the first transmission gear 41 and the plurality of second transmission gears 42 a - 42 d are both disposed on a gear rack 43 , and the gear rack 43 is mounted above the driving motor 30 . The first transmission gear 41 and the plurality of second transmission gears 42a-42d are rotatably disposed on the gear frame 43. Specifically, the first transmission gear 41 has a first large diameter gear portion 411 and a first small diameter gear portion 412 coaxially disposed, the first large diameter gear portion 411 meshing with the ring gear 33, and the number of the second transmission gears 42a-42d is four in the present embodiment. The number of the second transmission gears 42a-42d can be increased or decreased depending on the situation, and can even be reduced to zero, so that the first small diameter gear portion 412 of the first transmission gear 41 directly meshes with an external tooth portion 513 of the vehicle light steering drive lever assembly 50 which will be described later. Each second transmission gear 42a-42d has a second large diameter gear portion 421a-421d and a second small diameter gear portion 422a-422d. The second large diameter gear portion 421a of the first second transmission gear 42a meshes with the first small diameter gear portion 412, the second small diameter gear portion 422a of the first second transmission gear 42a meshes with the second second large diameter gear portion 421b, and so on, until the second large diameter gear portion 421d of the fourth second transmission gear 42d meshes with the outer tooth portion 513 of the vehicle light steering drive lever assembly 50 (that is, the first transmission gear 41 is indirectly meshed with the outer tooth portion 513 through the plurality of second transmission gears 42a-42d). It can be seen that, as Figure 4 As shown, the first transmission gear 41 is rotatably disposed on the gear frame 43 with a first rotating shaft 413 as an axis, and each of the second transmission gears 42a-42d has a second rotating shaft 423a-423d, and each of the second transmission gears 42a-42d is rotatably disposed on the gear frame 43 with its second rotating shaft 423a-423d as an axis. The first rotating shaft 413, the plurality of second rotating shafts 423a-423d and the power output shaft 32 of the drive motor 30 are parallel to each other, and the extension range of the first rotating shaft 413, the plurality of second rotating shafts 423a-423d and the power output shaft 32 of the drive motor 30 are all located between the extension range of the first tangent plane 34 and the extension range of the second tangent plane 35.

[0067] Please refer to Figure 3 and Figure 6The vehicle light steering drive rod assembly 50 is rotatably disposed on the housing 20 and includes a rotating seat 51 and an actuating rod 52. The rotating seat 51 is cylindrical and includes an outer annular surface 511 and an inner annular surface 512. The outer annular surface 511 of the rotating seat 51 is provided with the above-mentioned outer tooth portion 513, and the outer tooth portion 513 meshes with the second large diameter gear portion 421d of the fourth second transmission gear 42d. The inner annular surface 512 of the rotating seat 51 is provided with an internal thread 514. The actuating rod 52 has a straight rod portion 521, a sleeve 522 and a screw portion 523. The sleeve 522 is sleeved with the straight rod portion 521 and the outer surface of the sleeve 522 is provided with an external thread 524. The actuating rod 52 is screwed with the internal thread 514 of the rotating seat 51 through the external thread 524 on the sleeve 522, so that when the rotating seat 51 is rotated, the actuating rod 52 can move forward or backward. The screw portion 523 is integrally connected to the straight rod portion 521 and is located at the end of the actuating rod 52. The screw portion 523 extends out of the opening 221 of the box cover 22 and is combined with the driving portion 71 of the lamp holder 7, so that the actuating rod 52 can push the driving portion 71 of the lamp holder 7 forward or backward to rotate the direction of the vehicle lamp 6. Of course, in some cases, the actuating rod 52 and the sleeve 522 can be integrally connected. It should be noted that the vehicle lamp steering drive rod assembly 50 has a virtual central axis A, which is also parallel to the power output shaft 32, the first rotating shaft 413 and the plurality of second rotating shafts 423a-423d, and the central axis A is also located between the range extended by the first tangent plane 34 and the range extended by the second tangent plane 35.

[0068] The above description is merely the content described in the above embodiments of the present application, and it cannot be used to limit the patent protection scope of the present application. Any simple changes or equivalent implementations made according to the claims and the contents of the patent specification of the present application should be covered by the patent scope of the present application.

Claims

1. A miniaturized vehicle light steering drive device, characterized in that: Contains: a housing; a driving motor, disposed in the housing and having a motor body, a power output shaft and a ring gear, wherein the power output shaft is rotatably disposed on the motor body, and the ring gear is disposed on the power output shaft; a transmission gear assembly, disposed in the housing and comprising a first transmission gear, the first transmission gear rotating about a first rotating shaft, the first transmission gear meshing with the ring gear; a vehicle light steering drive lever assembly, rotatably disposed on the housing and comprising an external tooth portion, wherein the external tooth portion directly or indirectly meshes with the first transmission gear of the transmission gear assembly; The vehicle light steering drive rod assembly has a virtual central axis, and the central axis, the power output shaft and the first rotating shaft are arranged parallel to each other.

2. The miniaturized vehicle light steering drive device according to claim 1, characterized in that: The headlight steering drive rod assembly includes a rotating seat and an actuating rod. The rotating seat is cylindrical and includes an outer annular surface and an inner annular surface. The outer tooth portion is arranged on the outer annular surface. The inner annular surface of the rotating seat is provided with an internal thread and the actuating rod is provided with an external thread. The actuating rod is screwed into the internal thread of the rotating seat through the external thread.

3. The miniaturized vehicle light steering drive device according to claim 2, characterized in that: The actuating rod comprises a straight rod portion and a sleeve, the sleeve is sleeved with the straight rod portion, and the external thread is arranged on the outer surface of the sleeve.

4. The miniaturized vehicle light steering drive device according to claim 1, characterized in that: The motor body has a first tangent plane and a second tangent plane that are arranged opposite to each other, the first tangent plane is parallel to the second tangent plane, and the extension ranges of the central axis and the first rotating axis of the headlight steering drive rod assembly are both located between the extension range of the first tangent plane and the extension range of the second tangent plane.

5. The miniaturized vehicle light steering drive device according to claim 1, characterized in that: The first transmission gear has a first large-diameter gear portion and a first small-diameter gear portion coaxially arranged, the first large-diameter gear portion meshes with the ring teeth, and the first small-diameter gear portion meshes with the external teeth portion.

6. The miniaturized vehicle light steering drive device according to claim 5, characterized in that: The transmission gear assembly also includes a plurality of second transmission gears, each of which has a plurality of second rotating shafts, and the plurality of second rotating shafts are parallel to the axial direction of the power output shaft, the first rotating shaft and the headlight steering drive rod assembly, and the first small-diameter gear portion is meshed with the external tooth portion through the plurality of second transmission gears.

7. The miniaturized vehicle light steering drive device according to claim 6, characterized in that: The invention also comprises a gear frame, which is mounted above the driving motor, and the first transmission gear and the plurality of second transmission gears are rotatably mounted on the gear frame.

8. A miniaturized vehicle lamp, comprising: A lamp holder having a driving portion; An LED lamp, mounted on the lamp holder; A miniaturized vehicle light steering drive device as claimed in claim 2, characterized in that: The end of the actuating rod is coupled to the driving portion of the lamp holder, and the vehicle light steering driving rod assembly can be driven and the driving portion of the lamp holder can be pushed forward or backward by the actuating rod, thereby rotating the LED lamp.

9. The miniaturized vehicle lamp according to claim 8, characterized in that: The lamp holder has two supporting shafts, and the LED lamp is arranged on the lamp holder via the supporting shafts.

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