Automobile lamp dimming motor

Abstract

The utility model relates to the technical field of automobile parts, in particular to a dimming motor for an automobile lamp, which aims to solve the technical problems of infirm connection and overlarge noise in the prior art, and is mainly realized through the following technical scheme: the dimming motor for the automobile lamp comprises an upper shell and a lower shell, a circuit board, a driving motor and a plug connector are arranged in the lower shell, the driving motor and the plug connector are connected with the circuit board, the fixing device comprises a protection fixing part and a pin fixing part, and the lubricating device is arranged outside the lower shell and connected with the light adjusting shaft. The lubricating device comprises an oil cavity, an oil outlet hole and a contact ball, the fixing device is used for fixing the circuit board and the plug connector, the situation that the plug connector falls off from the circuit board is avoided, and the driving safety of a driver is improved; the telescopic part of the dimming shaft is lubricated, and abnormal noise generated in the driving process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a dimming motor for automobile lights. Background Art

[0002] The dimming motor is installed in the car headlight and is used to adjust the movement of the reflective surface of the headlight to adjust the height of the focal length of the reflected light, thereby achieving the effect of adjusting the direction of the headlight.

[0003] In the prior art, the dimming motor includes an upper shell, a lower shell, a motor, a circuit board and a pin. The upper shell is fixedly connected to the lower shell, and the motor and the circuit board are placed inside the lower shell. One end of the pin is welded to the circuit board, and the other end of the pin extends out of the upper shell and is connected to the dimming motor power supply connector. The car is prone to bumps during driving, and the pin is prone to fall off the circuit board in a long-term bumpy and shaking environment, so that the headlights cannot be adjusted, affecting the driving safety of the driver; the dimming motor device is driven by a motor, and the power is transmitted to the double gear through the worm, and then transmitted to another large gear. The output shaft is sleeved in the middle of the large gear, and the forward and backward movement of the output shaft is realized through threaded transmission. Mechanical movement will inevitably bring vibration and noise. Instability during operation or inadequate assembly lubrication will aggravate the noise problem, thereby affecting the driver's use experience. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defects of the prior art such as loose connection and excessive noise, thereby providing a car light dimming motor.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A vehicle headlight dimming motor comprises an upper shell and a lower shell which are connected by a clamping arrangement, wherein a circuit board, a driving motor and a plug-in component are arranged in the lower shell, wherein the driving motor and the plug-in component are connected to the circuit board, and further comprises a transmission assembly, wherein the driving motor drives the transmission assembly to move, and further comprises a dimming shaft, wherein the dimming shaft is driven by the transmission assembly and extends out of the lower shell, and is characterized in that it further comprises:

[0007] A fixing device, the fixing device comprising a protective fixing and a pin fixing, the protective fixing is used to fix the circuit board and is located between the upper shell and the lower shell, the pin fixing is used to fix the connector and is located beside the circuit board and inside the upper shell;

[0008] A lubricating device is arranged outside the lower shell and connected to the dimming shaft. The lubricating device includes an oil chamber arranged in the extension seat of the lower shell, a plurality of oil outlet holes arranged on one side of the oil chamber close to the dimming shaft, and a contact ball embedded in the oil outlet hole.

[0009] By adopting the above technical solution, when bumps occur during driving of the car, the fixing device fixes the circuit board and the connector to prevent the connector from falling off the circuit board, thereby improving the driving safety of the driver; the telescopic part of the dimming axis is lubricated to reduce the generation of abnormal noise during driving, effectively improving the driver's operating feel.

[0010] Furthermore, the transmission assembly includes a worm, a double gear, a main gear and a transmission guide cylinder, the worm is sleeved on the output shaft of the drive motor, the worm is meshed with the double gear for transmission, the double gear is also meshed with the main gear for transmission, the main gear is threadedly connected to the transmission guide cylinder, and the transmission guide cylinder is sleeved on the dimming shaft.

[0011] By adopting the above technical solution, the driving motor drives the worm to rotate, the worm drives the double gear, and the main gear meshing with the double gear also rotates. The main gear then controls the movement of the transmission guide cylinder and drives the dimming axis to move. The change of rotation direction is achieved through the cooperation of the driving motor, the double gear and the main gear, thereby achieving the purpose of controlling the dimming axis.

[0012] Furthermore, the protective fixation includes a limit buckle, a limit groove and a movable buckle, and the limit buckle is arranged in plurality along the length direction of the lower shell body. The limit buckle is in a U-shape with the opening upward and the two ends of the opening are arc transitions. The limit groove is relatively arranged on the inner wall of the lower shell body, and the movable buckle is hingedly arranged on the top of the lower shell body and is arranged in plurality. The number of the movable buckles is less than the number of the limit buckles.

[0013] By adopting the above technical solution, a protective fixation is provided to ensure that the position of the circuit board is fixed in the upper shell and the lower shell, thereby reducing the relative movement between the circuit board and the connector and ensuring stable circuit connection.

[0014] Furthermore, the movable buckle is U-shaped and the hinge axis between it and the lower shell is arranged along the length direction of the lower shell. The outer wall of the movable buckle on the side away from the opening is also provided with a positioning groove, and a positioning strip is extended from the corresponding positioning groove in the upper shell. The positioning strip is arranged at the top of the upper shell and along the length direction of the upper shell.

[0015] By adopting the above technical solution, the movable buckle fastens the top of the circuit board and cooperates with the positioning bar to limit the stability of the circuit board, reducing the vibration of the circuit board during bumpy driving, thereby effectively ensuring the stability of the circuit connection.

[0016] Furthermore, the pin fixation includes base fixation and socket fixation, the base is fixedly arranged on the circuit board, the socket is fixedly arranged on the upper shell, the base is fixedly arranged to be clamped with the bottom of the connector, and the socket is fixedly arranged to be clamped with the top of the connector.

[0017] Furthermore, the base is fixed as an L-shaped plug base, the base is provided with a pin hole for inserting the connector, the top of the pin hole is provided with an outwardly expanded transition edge, the other end of the base is inserted into the circuit board, and an abutment is also provided inside the base.

[0018] By adopting the above technical solution, the base fixation can simply and quickly connect and fix the connector and the circuit board, and the transition edge is used for the clamping connection between the pins of the connector and the base fixation, which facilitates the clamping and separation of the two, and at the same time reduces the vibration during the movement of the car.

[0019] Furthermore, the abutment member is slidably arranged in the fixed base and the sliding direction is perpendicular to the plug-in member. The abutment member includes an abutment block and an abutment spring. An abutment groove for accommodating the abutment member is opened in the fixed base. The abutment block abuts against one side of the bottom of the plug-in member. The abutment spring is arranged on the side of the abutment block away from the plug-in member. One end of the abutment spring is fixed to the abutment block, and the other end is fixed to the abutment groove.

[0020] By adopting the above technical solution, the abutment further improves the tightness of the connection between the pins on the connector and the base. The fitting arrangement of the abutment block and the connector ensures that each pin connection is laterally limited, reducing the sliding of the pins in motion. When there is external bumps, the abutment spring can also alleviate vibration to a certain extent.

[0021] Furthermore, the socket is fixed as a plug plate arranged on the upper shell, and the socket is fixed with a plug hole for the connector to extend out. The socket also includes an edge guard plate arranged at the bottom of the socket, and the outer side of the edge guard plate is in a circular arc transition.

[0022] By adopting the above technical solution, the structural design of the socket fixation improves the strength of the connection with the connector, and the edge guard extending below the socket fixation reduces the risk of pin breakage, effectively increasing the service life of the connector.

[0023] In summary, the technical solution of the utility model has the following advantages:

[0024] 1. The automobile headlight dimming motor provided by the utility model has a fixing device that fixes the circuit board and the connector when the automobile is bumpy during driving, thereby preventing the connector from falling off the circuit board and improving the driving safety of the driver.

[0025] 2. The automobile headlight dimming motor provided by the utility model lubricates the telescopic part of the dimming shaft, reduces the generation of abnormal noise during driving, and effectively improves the driver's operating feeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 This is a schematic diagram of the overall structure of a vehicle headlight dimming motor provided in one embodiment of the utility model;

[0028] Figure 2 A schematic diagram of an exploded structure of a vehicle headlight dimming motor provided in one embodiment of the utility model;

[0029] Figure 3 A schematic diagram of the internal structure of a vehicle headlight dimming motor provided in one embodiment of the utility model;

[0030] Figure 4 A schematic diagram of a partial structure of a fixing device provided in one embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the partial structure of a lubrication device provided in one embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 1. Upper shell; 11. Positioning strip; 2. Lower shell; 3. Circuit board; 4. Drive motor; 5. Connector; 6. Transmission assembly; 61. Worm; 62. Double gear; 63. Main gear; 64. Transmission guide cylinder; 7. Dimming axis; 8. Fixing device; 81. Protective fixing; 811. Limit buckle; 812. Limit groove; 813. Movable buckle; 8131. Positioning groove; 82. Pin fixing; 821. Base fixing; 8211. Pin hole; 82111. Transition edge; 8212. Abutment groove; 8213. Abutment piece; 82131. Abutment block; 82132. Abutment spring; 822. Socket fixing; 8221. Socket; 8222. Edge guard plate; 9. Lubrication device; 91. Oil chamber; 92. Oil outlet; 93. Contact ball. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] A car light dimming motor, such as Figure 1 and Figure 2As shown, it includes an upper shell 1 and a lower shell 2 that are clamped together. A circuit board 3, a drive motor 4 and a connector 5 are arranged in the lower shell 2. The drive motor 4 and the connector 5 are connected to the circuit board 3. It also includes a transmission assembly 6 and a dimming shaft 7. The transmission assembly 6 includes a worm 61, a double gear 62, a main gear 63 and a transmission guide cylinder 64. The worm 61 is sleeved on the output shaft of the drive motor 4. The worm 61 is meshed with the double gear 62 for transmission. The double gear 62 is also meshed with the main gear 63 for transmission. The main gear 63 is threadedly connected with the transmission guide cylinder 64. The transmission guide cylinder 64 is sleeved on the dimming shaft 7. The drive motor 4 drives the worm 61 to rotate. The worm 61 drives the double gear 62. The main gear 63 meshed with the double gear 62 also rotates. The main gear 63 then controls the transmission guide cylinder 64 to move and drives the dimming shaft 7 to move. The change of the rotation direction is achieved through the cooperation of the drive motor 4, the double gear 62 and the main gear 63, so as to achieve the purpose of controlling the dimming shaft 7.

[0036] like Figure 2 , Figure 3 and Figure 4 As shown, the fixing device 8 includes a protective fixing 81 and a pin fixing 82. The protective fixing 81 is used to fix the circuit board 3 and is located between the upper shell 1 and the lower shell 2. The pin fixing 82 is used to fix the connector 5 and is located beside the circuit board 3 and inside the upper shell 1. When the car is bumpy during driving, the fixing device 8 fixes the circuit board 3 and the connector 5 to prevent the connector 5 from falling off the circuit board 3, thereby improving the driving safety of the driver.

[0037] like Figure 2 As shown, the protective fixation 81 includes a limit buckle 811, a limit groove 812 and a movable buckle 813. There are multiple limit buckles 811 along the length direction of the lower shell 2. The limit buckle 811 is U-shaped with the opening upward and the two ends of the opening are arc transitions. The limit groove 812 is relatively arranged on the inner wall of the lower shell 2. The movable buckle 813 is hingedly arranged on the top of the lower shell 2 and there are multiple movable buckles 813. The number of movable buckles 813 is less than the number of limit buckles 811.

[0038] The protective fixing 81 is provided to ensure the fixing of the position of the circuit board 3 in the upper shell 1 and the lower shell 2, thereby reducing the relative movement between the circuit board 3 and the plug-in connector 5 and ensuring the stability of the circuit connection. The circuit board 3 is first clamped in the limit buckle 811 and the limit groove 812. The limit groove 812 limits the left and right lateral displacement of the circuit board 3. The limit buckle 811 provides bottom support for the circuit board 3. The movable buckle 813 limits the top after the circuit board 3 is installed to prevent the circuit board 3 from moving vertically.

[0039] The movable buckle 813 is made of soft elastic non-conductive material, such as silicone or rubber. The movable buckle 813 is U-shaped and the hinge axis with the lower shell 2 is arranged along the length direction of the lower shell 2. The outer wall of the movable buckle 813 away from the opening is also provided with a positioning groove 8131. The upper shell 1 is also provided with a positioning bar 11 extending from the positioning groove 8131. The positioning bar 11 is arranged at the top of the upper shell 1 and is arranged along the length direction of the upper shell 1. The movable buckle 813 fastens the top of the circuit board 3 and cooperates with the positioning bar 11 to limit the stability of the circuit board 3. The positioning bar 11 enhances the vertical limitation and reduces the vibration of the circuit board 3 during driving bumps, thereby effectively ensuring the stability of the circuit connection.

[0040] like Figure 3 and Figure 4 As shown, the pin fixing 82 includes a base fixing 821 and a socket fixing 822, the base fixing 821 is set on the circuit board 3, the socket fixing 822 is set on the upper shell 1, the base fixing 821 is clamped with the bottom of the connector 5, and the socket fixing 822 is clamped with the top of the connector 5.

[0041] The base fixing 821 is an L-shaped plug-in base, and a pin hole 8211 is provided on the base fixing 821 for the plug-in component 5 to be inserted. An outwardly expanded transition edge 82111 is provided on the top of the pin hole 8211. The other end of the base fixing 821 is inserted into the circuit board 3. An abutment member 8213 is also provided in the base fixing 821. The abutment member 8213 is slidably provided in the base fixing 821 and the sliding direction is perpendicular to the plug-in component 5. The abutment member 8213 includes an abutment block 82131 and an abutment spring 82132. An abutment groove 8212 for accommodating the abutment member 8213 is provided in the base fixing 821. The abutment block 82131 abuts against one side of the bottom of the plug-in component 5. The abutment spring 82132 is provided on the side of the abutment block 82131 away from the plug-in component 5. One end of the abutment spring 82132 is fixed to the abutment block 82131, and the other end is fixed to the abutment groove 8212. The abutment 8213 further improves the tightness of the connection between the pin on the connector 5 and the base fixed 821. The abutment block 82131 is fitted with the connector 5 to ensure that each pin connection is laterally limited, reducing the sliding of the pin in motion. When there is external bumps, the abutment spring 82132 can also alleviate vibration to a certain extent.

[0042] like Figure 3 and Figure 4As shown, the socket fixing 822 is a plug plate arranged on the upper housing 1, and a plug hole 8221 is arranged on the socket fixing 822 for the plug connector 5 to extend out, and the socket fixing 822 also includes an edge guard plate 8222 arranged at the bottom of the socket fixing 822, and the outer side of the edge guard plate 8222 is in an arc transition. The structural design of the socket fixing 822 improves the strength of the connection with the plug connector 5, and the edge guard plate 8222 extending below the socket fixing 822 reduces the risk of pin breakage, effectively improving the service life of the plug connector 5.

[0043] like Figure 5 As shown, the lower housing 2 also includes a lubricating device 9, which is arranged outside the lower housing 2 and connected to the dimming shaft 7. The lubricating device 9 includes an oil chamber 91 arranged in the extension seat of the lower housing 2, a plurality of oil outlet holes 92 arranged on the side of the oil chamber 91 close to the dimming shaft 7, and a contact ball 93 embedded in the oil outlet hole 92. The lubricating oil seeps out through the oil outlet hole 92 and rubs with the contact ball 93 to lubricate the telescopic part of the dimming shaft 7, thereby reducing the generation of abnormal noise during driving and effectively improving the driver's operating feeling.

[0044] The working principle and use method of the automobile headlight dimming motor are as follows: the upper shell 1 and the lower shell 2 are detachably connected, and a lubricating device 9 is arranged in the lower shell 2, so as to lubricate the shaft body when the dimming shaft 7 is controlled to be extended and retracted by the transmission assembly 6; a fixing device 8 is arranged to fix the circuit board 3 and the connector 5, so as to reduce the relative movement between the two and mitigate the vibration during bumpy driving.

[0045] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A vehicle headlight dimming motor, comprising an upper shell (1) and a lower shell (2) which are connected by a snap-fit ​​arrangement, wherein a circuit board (3), a drive motor (4) and a connector (5) are arranged in the lower shell (2), wherein the drive motor (4) and the connector (5) are connected to the circuit board (3), further comprising a transmission assembly (6), wherein the drive motor (4) drives the transmission assembly (6) to move, and further comprising a dimming shaft (7), wherein the dimming shaft (7) is driven by the transmission assembly (6) and extends out of the lower shell (2), wherein: Also includes: A fixing device (8), the fixing device (8) comprising a protective fixing (81) and a pin fixing (82), the protective fixing (81) being used to fix the circuit board (3) and being located between the upper shell (1) and the lower shell (2), the pin fixing (82) being used to fix the connector (5) and being located beside the circuit board (3) and inside the upper shell (1); A lubricating device (9), the lubricating device (9) being arranged outside the lower housing (2) and connected to the dimming shaft (7), the lubricating device (9) comprising an oil chamber (91) arranged in an extension seat of the lower housing (2), a plurality of oil outlet holes (92) arranged on a side of the oil chamber (91) close to the dimming shaft (7), and a contact ball (93) embedded in the oil outlet hole (92).

2. The automobile headlight dimming motor according to claim 1, characterized in that: The transmission assembly (6) comprises a worm (61), a double gear (62), a main gear (63) and a transmission guide cylinder (64); the worm (61) is sleeved on the output shaft of the drive motor (4); the worm (61) is meshed with the double gear (62) for transmission; the double gear (62) is also meshed with the main gear (63) for transmission; the main gear (63) is threadedly connected to the transmission guide cylinder (64); and the transmission guide cylinder (64) is sleeved on the dimming shaft (7).

3. The automobile headlight dimming motor according to claim 2, characterized in that: The protective fixing (81) comprises a limiting buckle (811), a limiting groove (812) and a movable buckle (813); a plurality of the limiting buckles (811) are arranged along the length direction of the lower shell (2); the limiting buckle (811) is in a U-shape with an opening upward and both ends of the opening are arc transitions; the limiting groove (812) is relatively arranged on the inner side wall of the lower shell (2); the movable buckle (813) is hingedly arranged on the top of the lower shell (2) and is arranged in plurality; the number of the movable buckles (813) is less than the number of the limiting buckles (811).

4. The automobile headlight dimming motor according to claim 3, characterized in that: The movable buckle (813) is U-shaped and the hinge axis between the movable buckle (813) and the lower shell (2) is arranged along the length direction of the lower shell (2). The outer wall of the movable buckle (813) away from the opening is also provided with a positioning groove (8131). A positioning strip (11) is also extended from the corresponding positioning groove (8131) in the upper shell (1). The positioning strip (11) is arranged at the top of the upper shell (1) and along the length direction of the upper shell (1).

5. The automobile headlight dimming motor according to claim 4, characterized in that: The pin fixing (82) comprises a base fixing (821) and a socket fixing (822); the base fixing (821) is arranged on the circuit board (3); the socket fixing (822) is arranged on the upper shell (1); the base fixing (821) is clamped with the bottom of the connector (5); and the socket fixing (822) is clamped with the top of the connector (5).

6. The automobile headlight dimming motor according to claim 5, characterized in that: The base fixing (821) is an L-shaped plug-in base. The base fixing (821) is provided with a pin hole (8211) for inserting the plug-in component (5). The top of the pin hole (8211) is provided with an outwardly expanded transition edge (82111). The other end of the base fixing (821) is inserted into the circuit board (3). The base fixing (821) is also provided with an abutment component (8213).

7. The automobile headlight dimming motor according to claim 6, characterized in that: The abutment member (8213) is slidably arranged in the base fixing (821) and the sliding direction is perpendicular to the plug-in member (5). The abutment member (8213) comprises an abutment block (82131) and an abutment spring (82132). The base fixing (821) is provided with an abutment groove (8212) for accommodating the abutment member (8213). The abutment block (82131) abuts against one side of the bottom of the plug-in member (5). The abutment spring (82132) is arranged on a side of the abutment block (82131) away from the plug-in member (5). One end of the abutment spring (82132) is fixed to the abutment block (82131) and the other end is fixed to the abutment groove (8212).

8. The automobile headlight dimming motor according to claim 7, characterized in that: The socket fixing (822) is a plug plate arranged on the upper shell (1), and the socket fixing (822) is provided with a plug hole (8221) for the plug connector (5) to extend out. The socket fixing (822) also includes an edge guard plate (8222) arranged at the bottom of the socket fixing (822), and the outer side of the edge guard plate (8222) is in the form of an arc transition.

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