Headlight module, headlight and vehicle

Direct positioning of light shields and reflectors to the circuit board in car lamp modules addresses positioning inaccuracies and durability issues, ensuring consistent and regulatory-compliant light distribution.

CN111486407BActive Publication Date: 2025-07-15HASCO VISION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN201911208408.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-11-30
Publication Date
2025-07-15
Estimated Expiration
2039-11-30

AI Technical Summary

Technical Problem

The positioning accuracy of optical components in existing reflective car light modules is low, resulting in poor light effect, and poor heat resistance of the light shield, which affects service life, and the light cutoff lines are difficult to align and cannot meet the requirements of regulations.

Method used

Direct positioning is adopted, and the light shield and mirror are directly positioned with the circuit board, and the light shield positioning pin and the mirror positioning pin are used to achieve precise positioning. The light shield, circuit board and radiator are connected with the riveted structure, and the dimming structure is set to adjust the optical position.

Benefits of technology

It improves the positioning accuracy of optical components, ensures that the light effect meets the requirements of regulations, extends the service life of the light shield, and improves the heat dissipation performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a headlight module, a headlight and a vehicle. The headlight module includes a circuit board (3), at least one reflector (1) and a light shield (2) corresponding to the reflector (1) one by one. A plurality of light shield positioning pins (21) are provided on the light shield (2), and light shield positioning sockets (31) corresponding to the light shield positioning pins (21) are provided on the circuit board (3) to achieve direct positioning of the light shield (2) and the circuit board (3). Based on the circuit board, the light shield and the reflector are directly positioned with the circuit board respectively, achieving precise and good positioning among the optical element systems of the circuit board, the light shield and the reflector. The radiator only plays a role in heat dissipation and has no positioning function, avoiding the position error caused by the indirect positioning among the optical elements due to the radiator being used as a positioning part, so as to ensure the light pattern effect and improve the performance of the module.
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Description

Technical Field

[0001] The present invention relates to a lighting device, and more particularly to a vehicle lamp module. In addition, the present invention also relates to a vehicle lamp including the vehicle lamp module, and a vehicle including the vehicle lamp. Background Art

[0002] With the gradual maturity and stability of the development of the automotive industry, vehicle lamp modules have become increasingly diversified. In terms of the comprehensive performance of vehicle lamp modules, customers have put forward more and more and higher requirements, such as light pattern effect, module manufacturing cost, and service life. As one of the vehicle lamp modules, the reflective vehicle lamp module uses a reflector as the optical element of the vehicle lamp module, and has high requirements for the positioning and installation accuracy between various components.

[0003] Chinese Patent CN108061277A discloses a headlamp for a vehicle, which claims to protect a reflective vehicle lamp module, including a reflection unit, a light source unit, and a heat dissipation component. The reflection unit and the heat dissipation component are riveted and fixed through the cooperation of a heat dissipation component fixing rib and a heat dissipation component fixing hole. The light source unit, the reflection unit, and the heat dissipation component are riveted and fixed through the cooperation of a light source unit fixing rib, a light source unit fixing hole, and a light source unit fixing rib insertion hole.

[0004] US Patent US20180112844A1 discloses a vehicle lamp, which also claims to protect a reflective vehicle lamp module, including a reflector, a light shield, a circuit board, and a radiator. The radiator is provided with positioning pins, and the circuit board and the reflector are respectively provided with positioning holes for the positioning pins to pass through. The cooperation of the positioning pins and the positioning holes can position the three components, and the light shield is welded to the circuit board.

[0005] The positioning of the optical elements (reflector and circuit board provided with a light source) in the above two patents is carried out through the indirect component of the radiator. Due to the manufacturing errors and assembly errors between various components, the positioning accuracy is low, affecting the accuracy of the optical system and further affecting the light pattern effect.

[0006] The opening in Patent CN108061277A has the same function as the light shield in US Patent US20180112844A1. The light-emitting element is exposed from the opening, which is opened on the base portion, that is, the base portion has a light-shielding function. However, the base portion is integrally formed with the reflection unit, and both the base portion and the reflector main body portion are made of resin, resulting in very low heat resistance of the base portion and affecting the service life of the base portion.

[0007] In addition, the relative positions between the light patterns formed by the three reflectors in Patent CN108061277A and Patent US20180112844A1 are not adjustable. There is no light-dimming structure in Patent CN108061277A. In Patent US20180112844A1, both the radiator and the circuit board are integrated components and do not have the function of light dimming either. This will cause the cut-off lines of the main low beam light pattern and the auxiliary low beam light pattern not to align, and the relative positions of the low beam light pattern and the high beam light pattern are also prone to deviation, resulting in a poor cut-off line of the light pattern, affecting the light pattern effect and not meeting the regulatory requirements. Summary of the Invention

[0008] One aspect of the present invention aims to provide a vehicle headlight module, which adopts a direct positioning method to improve the positioning accuracy and ensure the light pattern effect.

[0009] Another technical problem to be solved by the present invention is to provide a vehicle headlight, which adopts a direct positioning method to improve the positioning accuracy and ensure the light pattern effect.

[0010] Furthermore, the technical problem to be solved by the present invention is to provide a vehicle, in which the vehicle headlight adopts a direct positioning method to improve the positioning accuracy and ensure the light pattern effect.

[0011] To achieve the above object, one aspect of the present invention provides a vehicle headlight module, including a circuit board, at least one reflector, and a light shield corresponding to each reflector. The light shield is provided with a plurality of light shield positioning pins, and the circuit board is provided with light shield positioning sockets corresponding to the light shield positioning pins to achieve the direct positioning of the light shield and the circuit board.

[0012] Preferably, each light shield is provided with two light shield positioning pins.

[0013] Preferably, the radiator corresponding to the circuit board is provided with a first through hole for the light shield positioning pin to pass through, and the light shield positioning pin does not contact the inner wall of the first through hole.

[0014] Preferably, a thermal conductive adhesive is provided between the light shield positioning pin and the circuit board.

[0015] Preferably, at least one reflector is provided with a plurality of reflector positioning pins, and the circuit board corresponding to the reflector is provided with reflector positioning sockets corresponding to the reflector positioning pins to achieve the direct positioning of the reflector and the circuit board.

[0016] More preferably, each reflector is provided with two reflector positioning pins.

[0017] Preferably, a second through-hole for the mirror positioning pin to pass through is provided on the radiator corresponding to the circuit board, and the mirror positioning pin does not contact the inner wall of the second through-hole.

[0018] Preferably, there are multiple mirrors. A plurality of the mirror positioning pins are provided on one of the mirrors, and a light regulating structure capable of relatively moving the remaining mirrors and their corresponding circuit boards is provided between the remaining mirrors and their corresponding circuit boards.

[0019] Specifically, the light regulating structure includes at least one guiding post provided on the bottom surface of each of the remaining mirrors and a circuit board guiding hole corresponding to the guiding post provided on the corresponding circuit board, and the circuit board guiding hole extends along the front-back direction of the circuit board.

[0020] Preferably, the outer edge of the guiding post contacts the inner wall of the circuit board guiding hole, and the inner edge of the guiding post does not contact the inner wall of the circuit board guiding hole.

[0021] Preferably, the guiding post is a cylinder. One guiding post is provided on one side of each of the remaining mirrors, and two guiding posts are provided on the other side. The outer edges of the two circuit board guiding holes corresponding to the two guiding posts on the same side are located on the same straight line.

[0022] Preferably, a radiator guiding hole corresponding to the circuit board guiding hole is provided on the radiator corresponding to the circuit board, and the guiding post sequentially passes through the circuit board guiding hole and the radiator guiding hole.

[0023] Preferably, at least one light shield riveting post is provided on the light shield, a circuit board connection hole corresponding to the light shield riveting post is provided on the circuit board, and a radiator connection hole corresponding to the light shield riveting post is provided on the radiator corresponding to the circuit board. The light shield riveting post sequentially passes through the circuit board connection hole and the radiator connection hole to rivet the light shield, the circuit board and the radiator.

[0024] Preferably, a heat-conducting adhesive is provided between the light shield riveting post and the circuit board.

[0025] Preferably, there is a gap for the light shield riveting post to move in the connection hole between the outer surface of the light shield riveting post and the inner surfaces of the circuit board connection hole and the radiator connection hole.

[0026] Preferably, mounting holes are provided on the mirror, through-holes are respectively provided on the circuit board and the radiator corresponding to the circuit board, and the through-holes and the mounting holes are connected by fasteners, so that the radiator, the circuit board and the mirror are fixedly connected.

[0027] Preferably, a first rib protruding from the lower surface of the reflector is provided around the mounting hole, and the first rib is in contact with the upper surface of the circuit board.

[0028] Preferably, riveting posts are provided on the lower surface of the reflector, and riveting holes mating with the riveting posts are provided on the circuit board.

[0029] Preferably, second ribs are provided around the riveting posts of the reflector, and the second ribs are in contact with the upper surface of the circuit board.

[0030] On the other hand, the present invention also provides a vehicle lamp, which includes the vehicle lamp module described in any one of the above.

[0031] On the third aspect, the present invention also provides a vehicle, which is equipped with the vehicle lamp described above.

[0032] Through the above technical solutions, the present invention achieves the following beneficial effects:

[0033] 1. Based on the circuit board, the light shield and the reflector are directly positioned with the circuit board respectively, realizing precise and good positioning among the optical element systems of the circuit board, the light shield and the reflector. The radiator only plays a role in heat dissipation and has no positioning function, avoiding the position error caused by the indirect positioning among the optical elements due to the radiator acting as a positioning part, so as to ensure the light pattern effect and improve the module performance.

[0034] 2. In order to cooperate with the positioning structure, the light shield, the circuit board and the radiator are connected by riveting in the present invention to ensure reliable connection.

[0035] 3. The present invention has a dimming structure, which can adjust the relative positions of multiple light patterns in the up and down directions, making each light pattern meet the regulatory requirements and ensuring the light pattern effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the reflective vehicle lamp module in the present invention;

[0037] Figure 2 is Figure 1 the front view of

[0038] Figure 3 is Figure 1 the top view of

[0039] Figure 4 is Figure 1 one of the exploded schematic diagrams of

[0040] Figure 5 is Figure 1 the second exploded schematic diagram of , where the bracket is not shown;

[0041] Figure 6 It is a schematic assembly structure diagram of the light shield, circuit board and radiator in the present invention;

[0042] Figure 7 It is Figure 6 a schematic structure diagram from another angle;

[0043] Figure 8 It is Figure 6 the front view of;

[0044] Figure 9 It is Figure 6 the top view of;

[0045] Figure 10 It is Figure 6 the bottom view of;

[0046] Figure 11 It is Figure 10 the schematic sectional view taken along the line A-A of;

[0047] Figure 12 It is Figure 10 the schematic sectional view taken along the line B-B of;

[0048] Figure 13 It is Figure 10 the schematic sectional view taken along the line C-C of;

[0049] Figure 14 It is the schematic structure diagram of the reflector in the present invention

[0050] Figure 15 It is Figure 14 the enlarged schematic diagram at D in;

[0051] Figure 16 It is Figure 14 the enlarged schematic diagram at E in;

[0052] Figure 17 It is the schematic assembly structure diagram of the reflector, light shield, circuit board and radiator in the present invention;

[0053] Figure 18 It is Figure 17 the bottom view of;

[0054] Figure 19 It is Figure 18 the enlarged schematic diagram at F in;

[0055] Figure 20 It is Figure 19 the enlarged schematic diagram at G in;

[0056] Figure 21 It is Figure 19 the enlarged schematic diagram at H in;

[0057] Figure 22 It is a schematic diagram of the main low beam light pattern formed corresponding to the main low beam reflector in the present invention;

[0058] Figure 23 It is a schematic diagram of the auxiliary low beam light pattern formed corresponding to the auxiliary low beam reflector in the present invention;

[0059] Figure 24 It is a schematic diagram of the low beam light pattern of the reflective headlight module in the present invention (superposition of the main low beam and the auxiliary low beam);

[0060] Figure 25 It is a schematic diagram of the high beam light pattern formed corresponding to the high beam reflector in the present invention;

[0061] Figure 26 It is a schematic diagram of the headlight light pattern of the reflective headlight module in the present invention (superposition of the low beam and the high beam).

[0062] Description of the reference numerals

[0063] 1 Reflector 13 First rib

[0064] 12 Mounting hole 15 Second rib

[0065] 14 Reflector riveting post 2 Masking hood

[0066] 16 Guide post 21 Masking hood positioning pin

[0067] 11 Reflector positioning pin 22 Masking hood riveting post

[0068] 3 Circuit board 31 Masking hood positioning socket

[0069] 32 Circuit board connection hole 33 Reflector positioning socket

[0070] 34, 44 Through hole 35 Riveting hole

[0071] 36 Circuit board guide hole 4 Radiator

[0072] 41 First perforation 42 Radiator connection hole

[0073] 43 Second perforation 45 Radiator guide hole

[0074] 5 Screw 6 Bracket Detailed implementation manners

[0075] The following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and understanding the present invention, and are not used to limit the present invention.

[0076] The orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", and "right" is based on the orientation or positional relationship shown in the attached Figure 5 figure, that is, the same as the up, down, front, rear, left, and right directions of the headlight module in the use state. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0077] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features.

[0078] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] See Figures 1 - 5 As shown in the figure, the headlight module of the present invention includes a radiator 4, a circuit board 3, at least one reflector 1, and a light shield 2 corresponding to the reflector 1 one by one. Since part of the direct light emitted by the light source may cause glare to pedestrians or oncoming vehicle drivers, in order not to produce glare and avoid traffic accidents, the light shield 2 is provided. The light shield 2 is arranged near the light source. It can block part of the direct light propagating towards the lens, and can also block the scattered or diffused light from the light source from projecting towards a specific area of the reflector, so as to define the desired light pattern and prevent unwanted light and glare outside the desired light pattern. Since the light shield 2 is relatively close to the light source, in order to improve its service life, the material of the light shield 2 is selected as a metal with high strength, preferably ADC12 (a Japanese brand, also known as No. 12 aluminum material, an Al-Si-Cu series alloy, a die-cast aluminum alloy).

[0080] In order to improve the heat conduction performance of the radiator 4, the material of the radiator 4 in the present invention is selected as aluminum. Compared with the radiators made of aluminum alloy in the prior art, its heat conductivity is high, but its strength is low and it is easy to deform. Therefore, structures such as positioning pins and riveting posts cannot be processed on the radiator 4, while the light shield is made of a metal material with high strength, and positioning pins and riveting posts can be provided on it.

[0081] According to the selection of the materials of the above-mentioned components, the following positioning structure and connection structure are adopted in this technical solution:

[0082] A first positioning structure is provided between the light-shielding cover 2 and the circuit board 3 to directly position the light-shielding cover 2 and the circuit board 3 through the first positioning structure. Specifically, the first positioning structure includes a plurality of light-shielding cover positioning pins 21 provided on the light-shielding cover 2 and light-shielding cover positioning sockets 31 provided on the circuit board 3 corresponding to the light-shielding cover positioning pins 21. The light-shielding cover positioning pins 21 can pass through the light-shielding cover positioning sockets 31 to accurately position the light-shielding cover 2 and the circuit board 3. As Figures 3 - 5 a preferred embodiment of the present invention, both the light-shielding cover positioning pins 21 and the light-shielding cover positioning sockets 31 are two. Conventionally, to avoid over-positioning, one of the light-shielding cover positioning sockets 31 is a waist-shaped opening, and the outer surface of the light-shielding cover positioning pin 21 corresponding to the waist-shaped opening is in contact with the two inner side planes of the waist-shaped opening (as Figure 13 shown); the other light-shielding cover positioning socket 31 is a circular hole, and the outer surface of the light-shielding cover positioning pin 21 corresponding to the circular hole is in contact with the inner surface of the circular hole (as Figure 12 shown).

[0083] The light-shielding cover 2 and the circuit board 3 are directly positioned and do not need to be positioned with the radiator 4 anymore. However, for the convenience of processing and assembly, a first through hole 41 for the light-shielding cover positioning pin 21 to pass through is provided on the radiator 4 corresponding to the circuit board 3. The light-shielding cover positioning pin 21 is not in contact with the inner wall of the first through hole 41.

[0084] As Figures 3 - 21 shown, a second positioning structure is provided between at least one of the reflectors 1 and the circuit board 3 to directly position the reflector 1 and the circuit board 3 through the second positioning structure. The second positioning structure includes a plurality of reflector positioning pins 11 provided on the reflector 1 and reflector positioning sockets 33 provided on the circuit board 3 corresponding to the reflector positioning pins 11. The reflector positioning pins 11 can pass through the reflector positioning sockets 33 to accurately position the reflector 1 and the circuit board 3. As a preferred embodiment of the present invention, there are two reflector positioning pins 11 and two reflector positioning sockets 33 respectively. Similarly, to avoid over-positioning, one of the two reflector positioning sockets 33 is a waist-shaped opening, and the outer surface of the reflector positioning pin 11 corresponding to the waist-shaped opening is in contact with the two inner side planes of the waist-shaped opening; the other reflector positioning socket 33 is a circular hole, and the outer surface of the reflector positioning pin 11 corresponding to the circular hole is in contact with the inner surface of the circular hole.

[0085] The mirror 1 and the circuit board 3 are directly positioned and do not need to be positioned with the radiator 4 anymore. However, for the convenience of processing and assembly, a second through hole 43 for the mirror positioning pin 11 to pass through is provided on the radiator 4 corresponding to the circuit board 3, and the mirror positioning pin 11 does not contact the inner wall of the second through hole 43.

[0086] As an implementation manner of the present invention, the light shield 2, the circuit board 3 and the radiator 4 are connected through the following structure: at least one light shield riveting post 22 is provided on the light shield 2, a circuit board connection hole 32 corresponding to the light shield riveting post 22 is provided on the circuit board 3, a radiator connection hole 42 corresponding to the light shield riveting post 22 is provided on the radiator 4 corresponding to the circuit board 3, and the light shield riveting post 22 passes through the circuit board connection hole 32 and the radiator connection hole 42 in sequence to rivet the light shield 2, the circuit board 3 and the radiator 4. As Figure 11 shown, the numbers of the light shield riveting posts 22, the circuit board connection holes 32 and the radiator connection holes 42 are all two. The light shield riveting posts 22 can pass through the circuit board connection holes 32 and the radiator connection holes 42 in sequence to rivet the light shield 2, the circuit board 3 and the radiator 4. Since the light shield riveting posts 22 and the light shield 2 are made of the same material, both are metal parts, so their riveting with the circuit board 3 and the radiator 4 is cold riveting. To improve the thermal durability of the headlight module, as Figure 11 shown, a gap for the light shield riveting post 22 to move in the connection hole exists between the outer surface of the light shield riveting post 22 and the inner surfaces of the circuit board connection hole 32 and the radiator connection hole 42.

[0087] Preferably, the above-mentioned light shield positioning pins 21 and light shield riveting posts 22 are made of metal material with good heat conduction performance. A heat-conducting adhesive can also be provided between them and the circuit board 3 to achieve heat conduction and improve the heat dissipation efficiency.

[0088] As an implementation manner of the present invention, the mirror 1, the circuit board 3 and the radiator 4 are connected through the following structure: an installation hole 12 is provided on the mirror 1, through holes 34 and 44 are respectively provided on the circuit board 3 and the corresponding radiator 4, and the through holes 34 and 44 and the installation hole 12 are connected by fasteners such as screws 5 or bolts, so that the radiator 4, the circuit board 3 and the mirror 1 are fixedly connected. When using a screw 5 for connection, the installation hole 12 is a threaded hole adapted thereto.

[0089] As Figure 14 shown, since the installation hole 12 on the mirror 1 is provided at the rear end of the mirror 1, when the connecting screw 5 or bolt is tightened, the mirror 1 tends to tilt upward at the front end due to the force at the rear end, that is, the mirror 1 will flip backward. To inhibit the backward flipping of the mirror 1, as an improved manner, asFigure 15 As shown, a first convex rib 13 protruding from the lower surface of the reflector 1 is provided around the mounting hole 12, and the first convex rib 13 contacts the upper surface of the circuit board 3. When the reflector 1 flips backward, the first convex rib 13 will inhibit the reflector 1 from flipping. As another improved method, the front end of the reflector 1 can be riveted to the front end of the circuit board 3. Specifically, a reflector riveting column 14 is provided on the lower surface of the reflector 1, and a riveting hole 35 matching the reflector riveting column 14 is provided on the circuit board 3. By hot riveting the front end of the reflector 1 to the circuit board 3, the reflector 1 can be inhibited from flipping backward.

[0090] However, after the front end of the reflector 1 is riveted to the circuit board 3, the force on the front end of the reflector 1 will easily cause the rear end of the reflector 1 to tend to tilt upward, that is, the reflector 1 will flip forward. In order to prevent the reflector 1 from flipping forward, Figure 16 As shown, a second rib 15 is provided around the reflector riveted column 14 , and the second rib 15 contacts the upper surface of the circuit board 3 . When the reflector 1 flips forward, the second rib 15 will inhibit the reflector 1 from flipping forward.

[0091] The lower surfaces of the first convex rib 13 and the second convex rib 15 are also positioning surfaces of the reflector 1 in the vertical direction.

[0092] There can be multiple reflectors 1 for forming multiple light shapes. Multiple light shapes can be superimposed to form a complete headlight light shape. In the light distribution process, the relative positions of the multiple light shapes need to be adjusted first, and then the position of the entire headlight light shape is adjusted. The relative positions of the multiple light shapes can be adjusted by adjusting the position of the reflector 1 relative to the light source on the circuit board 3.

[0093] Taking a high and low beam integrated headlight module with three reflectors 1 as an example, the three reflectors 1 are respectively a main low beam reflector, an auxiliary low beam reflector and a high beam reflector, which are respectively used to form the main low beam light shape ( Figure 22 As shown), auxiliary low beam light shape ( Figure 23 shown) and high beam pattern ( Figure 25 As shown), the main low beam light shape and the auxiliary low beam light shape are superimposed to form a complete low beam light shape ( Figure 24 The positions of the three reflectors 1 can be set arbitrarily. Figure 1 As shown in the figure, the auxiliary low beam reflector and the high beam reflector are located on the left and right sides of the main low beam reflector. In order to improve the illumination of the main low beam area, the light source corresponding to the main low beam reflector has a smaller luminous area than the light sources corresponding to the other two reflectors, and its luminous area is less than or equal to 0.5mm 2 .

[0094] When assembling the reflective headlight module, in order to align the cut-off lines of the main low beam light pattern and the auxiliary low beam light pattern, and accurately position the relative positions of the main low beam light pattern and the high beam light pattern, it is necessary to adjust the relative positions of each light pattern, that is, the so-called light adjustment, so that the relative positions of each light pattern comply with the regulations and ensure the light pattern effect. During the light adjustment process, one of the light patterns needs to be used as the reference light pattern to adjust the positions of the other two light patterns relative to the reference light pattern. For example, taking the main low beam light pattern as the reference light pattern, the main low beam reflector is accurately positioned with the circuit board 3, that is, the above-mentioned second positioning structure is provided between the main low beam reflector and its corresponding circuit board 3, and a light adjustment structure capable of relatively moving the auxiliary low beam reflector and the high beam reflector with their corresponding circuit boards 3 is provided between the auxiliary low beam reflector and the high beam reflector and their corresponding circuit boards 3.

[0095] In the headlight module of this embodiment, the relative movement between the reflector 1 and its corresponding circuit board 3 can be achieved in the following two structural forms:

[0096] The first structural form is that multiple reflectors 1 are integral parts [first integrally formed with PC (polycarbonate), PMMA (polymethyl methacrylate) or BMC (bulk molding compound), and then aluminized on the surface used as the reflecting surface to form the reflecting surface], each of the reflectors 1 corresponds to one of the circuit boards 3 and one of the radiators 4, and the circuit boards 3 corresponding to the auxiliary low beam reflector and the high beam reflector can move relative to the auxiliary low beam reflector and the high beam reflector, that is, the above-mentioned light adjustment structure can make the small assembly formed by fixedly connecting the light shield 2, the circuit board 3 and the radiator 4 move relative to the reflector 1, so that the light source and the light shield 2 move relative to the reflector 1.

[0097] The second structural form is that the circuit boards 3 and / or the radiators 4 corresponding to multiple reflectors 1 are integrally formed parts, and multiple reflectors 1 are separated and independent from each other. The auxiliary low beam reflector and the high beam reflector can move relative to their corresponding circuit boards 3, that is, the above-mentioned adjustment structure can make the reflector 1 move relative to the small assembly formed by fixedly connecting the light shield 2, the circuit board 3 and the radiator 4, so that the reflector 1 moves relative to the light source and the light shield 2.

[0098] The above relative movement can be forward and backward movement, up and down movement, or movement in other directions, as long as the relative position adjustment between each light pattern can be achieved.

[0099] As an implementation manner, the structure of the above-mentioned light adjustment structure is specifically described in the first structural form, such as Figures 18 - 19As shown, taking the main low beam light pattern as the positioning reference, that is, fixedly connecting the main low beam reflector to the circuit board 3 and the radiator 4. The above-mentioned reflector positioning pin 11 is arranged on the main low beam reflector, and the reflector positioning socket 33 is arranged on the circuit board 3 corresponding to the main low beam reflector. The dimming structure includes at least one guiding column 16 respectively arranged on the left and right sides of the auxiliary low beam reflector and the high beam reflector, and a circuit board guiding hole 36 corresponding to the guiding column 6 arranged on the corresponding circuit board 3. The circuit board guiding hole 36 extends along the front-rear direction of the circuit board 3. The guiding column 16 can move back and forth along the circuit board guiding hole 36 to realize the relative position in the front-rear direction of the small assembly composed of the light shield 2, the circuit board 3 and the radiator 4 corresponding to the auxiliary low beam reflector and the high beam reflector relative to the auxiliary low beam reflector and the high beam reflector, that is, the position of the light source and the reflector 1 in the front-rear direction can be realized, and finally the adjustment of the relative position in the up-down direction of the auxiliary low beam light pattern and the high beam light pattern relative to the main low beam light pattern can be realized.

[0100] Meanwhile, the above-mentioned guiding column 16 and the circuit board guiding hole 36 also serve as the limiting structure of the small assembly composed of the light shield 2, the circuit board 3 and the radiator 4 corresponding to the auxiliary low beam reflector and the high beam reflector in the left-right direction, so that the above-mentioned small assembly can only move in the front-rear direction. Specifically, the outer edge of the guiding column 16 contacts the inner wall of the circuit board guiding hole 36, and the inner edge of the guiding column 16 does not contact the inner wall of the circuit board guiding hole 36 (here, the "inner" of the "inner edge" refers to the direction pointing to the center of the auxiliary low beam reflector or the high beam reflector, and the "outer" of the "outer edge" refers to the direction away from its center). As an embodiment of the present invention, as Figure 20 - Figure 21 shown, the right edge of the guiding column 16 on the right side fits with the right edge of its corresponding circuit board guiding hole 36, and there is a gap between the left edge of the guiding column 16 and the left edge of its corresponding circuit board guiding hole 36; the left edge of the guiding column 16 on the left side fits with the left edge of its corresponding circuit board guiding hole 36, and there is a gap between the right edge of the guiding column 16 and the right edge of its corresponding circuit board guiding hole 36.

[0101] If a guide post 16 is provided on each of the left and right sides of the auxiliary low beam reflector and the high beam reflector, and the guide post 16 is a cylinder and the circuit board guide hole 36 is a strip-shaped hole, when the special machine pushing mechanism is used to push the above-mentioned sub-assembly, since the contact between the two guide posts 16 and the two circuit board guide holes 36 is point contact, during the forward and backward movement, the sub-assembly is prone to rotation, resulting in inaccurate light adjustment; if the guide post 16 is set as a strip-shaped post and the circuit board guide hole 36 is a strip-shaped hole, and the contact between the guide post 16 and the circuit board guide hole 36 is line contact, then during the forward and backward movement, the sub-assembly is prone to jamming due to rotation. Therefore, as a preferred embodiment, as Figure 18 shown, the guide post 16 is a cylinder, one guide post 16 is provided on one side of the auxiliary low beam reflector, and two guide posts 16 are provided on the other side. The outer edges of the two circuit board guide holes 36 corresponding to the two guide posts 16 on the same side are located on the same straight line; one guide post 16 is provided on one side of the high beam reflector, and two guide posts 16 are provided on the other side. The outer edges of the two circuit board guide holes 36 corresponding to the two guide posts 16 on the same side are located on the same straight line. Since the three guide posts 16 and the three circuit board guide holes 3 are all point contacts, and the contact points of two of the guide posts 16 are on the same straight line, such a structure will neither cause the above-mentioned sub-assembly to rotate during the forward and backward movement, nor will it jam.

[0102] Radiator guide holes 45 corresponding to the circuit board guide holes 36 are provided on the radiators 4 corresponding to the auxiliary low beam reflector and the high beam reflector, and the guide posts 16 sequentially pass through the circuit board guide holes 36 and the radiator guide holes 45.

[0103] Because the above-mentioned sub-assembly needs to be relatively moved in the front and back directions relative to the reflector 1, therefore, the through holes 34 and 44 on the circuit boards 3 and radiators 4 corresponding to the above-mentioned auxiliary low beam reflector and high beam reflector and the riveting holes 35 on the circuit board 3 are all strip-shaped holes extending in the front and back directions. After the light adjustment is completed, the sub-assembly and the reflector 1 are connected and fixed by screws 5 or bolts and riveted by the reflector riveting posts 14.

[0104] The vehicle lamp module further includes a bracket 6, and the reflector 1 is fixed on the bracket 6. When the relative positions of the above-mentioned light patterns are adjusted, the overall adjustment of the reflective vehicle lamp module can be performed by adjusting the bracket 6, so that the Figure 26 vehicle lamp pattern shown is located at its theoretical position.

[0105] The second aspect of the present invention provides a vehicle lamp, including the above-mentioned vehicle lamp module.

[0106] The third aspect of the present invention provides a vehicle, having the above-mentioned vehicle lamp.

[0107] As can be seen from the above description, in the present invention, with the circuit board 3 as the reference, the light shielding cover 2 and the reflector 1 are directly positioned relative to the circuit board 3 respectively, achieving precise and good positioning among the automotive lighting optical component systems composed of the circuit board 3, the light shielding cover 2 and the reflector 1. The radiator 4 only functions as heat dissipation and has no positioning function, avoiding the position error caused by the indirect positioning among the optical components due to the radiator 4 being used as a positioning part, so as to ensure the light pattern effect and improve the module performance. In order to cooperate with the positioning structure, in the present invention, the light shielding cover 2, the circuit board 3 and the radiator 4 are connected by riveting to ensure reliable connection. The present invention has a dimming structure, which can adjust the relative positions of the auxiliary low beam light pattern and the high beam light pattern relative to the main low beam light pattern in the up and down directions, so that each light pattern meets the regulatory requirements and ensures the light pattern effect. The material characteristics of each component of the present invention are designed with a positioning structure different from the prior art. The light shielding cover 2 is made of a high-strength metal material, which can not only extend its service life, but also be provided with structures such as positioning pins and riveting posts, and can also improve the heat dissipation performance.

[0108] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0109] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, without conflict, they can be combined in any suitable way. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0110] Furthermore, any combination can be made among various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A vehicle lamp module, characterized in that, It includes a circuit board (3), a plurality of mirrors (1), and light-shielding covers (2) corresponding to the mirrors (1) one by one. A plurality of light-shielding cover positioning pins (21) are provided on the light-shielding covers (2), and light-shielding cover positioning sockets (31) corresponding to the light-shielding cover positioning pins (21) are provided on the circuit board (3) to achieve direct positioning of the light-shielding cover (2) and the circuit board (3). Among them, a light-adjusting structure capable of relatively moving the mirror (1) and its corresponding circuit board (3) is provided between at least one of the mirrors (1) and its corresponding circuit board (3). The light-adjusting structure includes at least one guiding post (16) provided on the bottom surface of the mirror (1) and a circuit board guiding hole (36) provided on the corresponding circuit board (3) corresponding to the guiding post (16). The circuit board guiding hole (36) extends along the front-back direction of the circuit board (3). The outer edge of the guiding post (16) contacts the inner wall of the circuit board guiding hole (36), and the inner edge of the guiding post (16) does not contact the inner wall of the circuit board guiding hole (36). The guiding post (16) is a cylinder. One guiding post (16) is provided on one side of the mirror (1), and two guiding posts (16) are provided on the other side. The outer edges of the two circuit board guiding holes (36) corresponding to the two guiding posts (16) on the same side are located on the same straight line.

2. The headlight module according to claim 1, wherein Two light-shielding cover positioning pins (21) are provided on each light-shielding cover (2).

3. The headlamp module according to claim 1, wherein, A first through hole (41) for the light-shielding cover positioning pin (21) to pass through is formed in the radiator (4) corresponding to the circuit board (3), and the light-shielding cover positioning pin (21) does not contact the inner wall of the first through hole (41).

4. The headlight module according to claim 1, characterized in that A heat-conducting adhesive is provided between the light-shielding cover positioning pin (21) and the circuit board (3).

5. The headlight module according to any one of claims 1 to 4, characterized in that, At least one of the mirrors (1) without the light-adjusting structure is provided with a plurality of mirror positioning pins (11), and the circuit board (3) corresponding to the mirror (1) is provided with a mirror positioning socket (33) corresponding to the mirror positioning pins (11) to achieve direct positioning of the mirror (1) and the circuit board (3).

6. The headlight module according to claim 5, characterized in that, Two mirror positioning pins (11) are provided on each mirror (1).

7. The headlight module according to claim 5, characterized in that, A second through hole (43) for the mirror positioning pin (11) to pass through is formed in the radiator (4) corresponding to the circuit board (3), and the mirror positioning pin (11) does not contact the inner wall of the second through hole (43).

8. The headlight module according to claim 5, characterized in that, There are a plurality of mirrors (1). A plurality of mirror positioning pins (11) are provided on one of the mirrors (1), and a light-adjusting structure capable of relatively moving the remaining mirrors (1) and their corresponding circuit boards (3) is provided between the remaining mirrors (1) and their corresponding circuit boards (3).

9. The headlight module according to claim 1, characterized in that, A heat sink (4) corresponding to the circuit board (3) is provided with a heat sink guiding hole (45) corresponding to the circuit board guiding hole (36), and the guiding column (16) sequentially passes through the circuit board guiding hole (36) and the heat sink guiding hole (45).

10. The headlight module according to any one of claims 1 to 4, characterized in that, The light shield (2) is provided with at least one light shield riveting post (22), the circuit board (3) is provided with a circuit board connection hole (32) corresponding to the light shield riveting post (22), the heat sink (4) corresponding to the circuit board (3) is provided with a heat sink connection hole (42) corresponding to the light shield riveting post (22), and the light shield riveting post (22) sequentially passes through the circuit board connection hole (32) and the heat sink connection hole (42) to rivet the light shield (2), the circuit board (3) and the heat sink (4).

11. The headlight module according to claim 10, characterized in that, A thermal conductive adhesive is provided between the light shield riveting post (22) and the circuit board (3).

12. The headlamp module according to claim 10, wherein, There is a gap for the light shield riveting post (22) to move in the connection holes between the outer surface of the light shield riveting post (22) and the inner surfaces of the circuit board connection hole (32) and the heat sink connection hole (42).

13. The headlight module according to any one of claims 1 to 4, characterized in that The reflector (1) is provided with a mounting hole (12), and the circuit board (3) and the heat sink (4) corresponding to the circuit board (3) are respectively provided with through holes (34, 44). The through holes (34, 44) and the mounting hole (12) are connected by fasteners, so that the heat sink (4), the circuit board (3) and the reflector (1) are fixedly connected.

14. The headlight module according to claim 13, characterized in that, A first rib (13) protruding from the lower surface of the reflector (1) is provided around the mounting hole (12), and the first rib (13) contacts the upper surface of the circuit board (3).

15. The headlight module according to claim 13, characterized in that, The lower surface of the reflector (1) is provided with a reflector riveting post (14), and the circuit board (3) is provided with a riveting hole (35) cooperating with the reflector riveting post (14).

16. The headlight module according to claim 15, characterized in that, A second rib (15) is provided around the reflector riveting post (14), and the second rib (15) contacts the upper surface of the circuit board (3).

17. A vehicle lamp, characterized in that, It includes a vehicle lamp module according to any one of claims 1 to 16.

18. A vehicle, characterized in that, It has a vehicle lamp according to claim 17.

Citation Information

Patent Citations

  • Vehicle headlamp

    CN108061277A

  • Vehicle lamp light assembly

    US20180112844A1

  • Automobile lamp high and low beam front and rear fine light-dimming structure

    CN110386053A

  • Vehicle lamp module, vehicle lamp and vehicle

    CN210891446U

  • Headlamp Assembly with a Housing and Heat Sink Structure

    US20170234503A1