Headlamp module and vehicle
By using a rotating bracket to install the light source in the headlight module and using a square light emitting chip with a set angle to form a light and dark cut-off line, the problems of complex structure and light energy loss of the existing headlight module are solved, and simplified integrated switching of high and low beams and efficient use of high and high light sources are achieved.
Patent Information
- Application Number
- CN202110227499.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-03-01
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2041-03-01
AI Technical Summary
The existing car light module has a complex structure, large light energy loss, and the light shielding leads to temperature rise. The mechanical structure has high heat resistance requirements, making it difficult to achieve simplified integrated switching between high and low beams.
The light source is installed using a rotating bracket to enable the light source to swing at a set frequency about the rotation axis, and a set angle is used to form a light shape of a light-dark cut-off line, eliminating the light shielding plate and complex optical structures.
The car light module structure is simplified, the light source utilization rate is improved, the temperature rise risk is reduced, and simple and efficient integrated switching between high and low beams is achieved.
Smart Images

Figure CN112856323B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a vehicle lighting device, and more particularly, to a headlight module. Additionally, it also relates to a vehicle. Background Art
[0002] Existing and traditional light sources are generally statically arranged. Especially in the current situation where LED light-emitting chips are increasingly used, the light source is directly or indirectly fixed to relevant optical components.
[0003] In existing high and low beam integrated headlight modules, to achieve the low beam function, the light in the high beam area needs to be blocked. Usually, a shutter is switched to control the on / off of the high beam function, and a power driving mechanism for controlling the up and down movement of the shutter is also provided for the corresponding shutter. However, this results in light energy loss of the light source, and the blocked light will also cause the temperature in the area of the shutter and its vicinity to rise sharply, imposing high requirements on the heat resistance of the mechanical structure.
[0004] Moreover, existing high beam and low beam headlight lighting functions are generally divided into reflective and projection types. The reflective type mainly consists of a light source and a reflector bowl, and the boundary of the reflecting surface on the reflector bowl realizes the cut-off line between light and dark. The projection type consists of a light source, a reflector bowl, a shutter, and a lens. Relatively speaking, the structure is more complex.
[0005] Therefore, it is necessary to design a new type of headlight module. Summary of the Invention
[0006] The technical problem to be solved by the present invention is to provide a headlight module, which simplifies the structural design and forms a light pattern with a cut-off line between light and dark through the rapid movement of the light-emitting chip.
[0007] The further technical problem to be solved by the present invention is to provide a vehicle with high light efficiency.
[0008] To achieve the above object, in a first aspect of the present invention, a headlight module is provided, including a light source, the light source at least includes a first square light-emitting chip, and is installed on a rotatable rotating bracket, so that the light source can be driven to swing around a rotation axis at a set frequency following the rotating bracket; wherein, one edge of the first square light-emitting chip has an included angle with a plane perpendicular to the rotation axis.
[0009] Preferably, it further includes a fixed bracket and a rotating motor that can be rotatably connected to the rotating shaft on the rotating bracket, and the rotating bracket is respectively connected to the rotating motor and the fixed bracket through a swinging structure.
[0010] Further, the swing structure includes a first bearing mounted on the rotating bracket and a torsion spring disposed between the rotating bracket and the fixed bracket. A driving gear is fixedly connected to the rotating shaft of the rotating motor. The driving gear is connected to the first bearing through a cam. The cam is provided with teeth capable of meshing with the driving gear. The torsion spring includes a spring end connected to the fixed bracket and a torsion arm connected to the rotating bracket.
[0011] Typically, a rotational speed sensor for detecting the rotation frequency of the cam is provided on the fixed bracket.
[0012] Typically, a lens is further included. The lens is connected to the fixed bracket through a lens bracket. The rotating bracket is located within the space formed between the lens bracket and the fixed bracket.
[0013] Further, the light source is located within the focal region of the lens.
[0014] More preferably, the light source further includes a second square light-emitting chip arranged side by side with the first square light-emitting chip. The edge at the upper end of the second square light-emitting chip is parallel to the plane perpendicular to the rotation axis. At least one of the left and right right-angle points of the first square light-emitting chip is located on the extension line of the edge at the upper end of the second square light-emitting chip.
[0015] Further, the first square light-emitting chip is a multi-chip light-emitting chip.
[0016] Preferably, the set angle is not less than 15° and less than 90°.
[0017] Specifically, the set angle is 15° or 45°.
[0018] Specifically, the set frequency is greater than 30 Hz.
[0019] Typically, the rotating shaft is mounted on the fixed bracket through a second bearing.
[0020] In a second aspect of the present invention, a vehicle is provided, including the headlight module according to any one of the technical solutions in the first aspect above.
[0021] With the above technical solution, the headlight module of the present invention designs the light source to be a periodically swingable light source. Specifically, the light source is arranged on a rotating bracket, so that the light source can be driven to swing around the rotation axis at a set frequency following the rotating bracket, which simplifies the light source design; a square light-emitting chip is used as the light source. Ingeniously, one edge of the first square light-emitting chip is set to have an included angle with a plane perpendicular to the rotation axis. Thus, when the light source swings around the rotation axis at a set frequency following the rotating bracket, the light emitted by the first square light-emitting chip can form a light pattern with an inclined line in the light and dark cut-off line. This light pattern can be used for high beam illumination, or, combined with the existing headlight illumination system, it can form a low beam light pattern with a complete light and dark cut-off line; there is no need for a light shield in a conventional high and low beam integrated headlight module, which improves the utilization rate of the light source and simplifies the structural design.
[0022] Furthermore, the rotating bracket is respectively connected to the rotating motor and the fixed bracket through a swinging structure. The rotating motor pushes the rotating bracket to rotate around the rotation axis to one side through a cam, and then under the action of a torsion spring, the rotating bracket is pulled back to its original position around the rotation axis, forming a complete swinging process. Thus, under the continuous drive of the rotating motor, the light source can swing periodically following the rotating bracket, and then a continuous light pattern can be formed.
[0023] In addition, a second square light-emitting chip can be arranged side by side with the first square light-emitting chip. The arrangement of the second square light-emitting chip on the circuit board is different from that of the first square light-emitting chip. One edge of the first square light-emitting chip needs to have an included angle with a plane perpendicular to the rotation axis, while the upper edge of the second square light-emitting chip is parallel to the plane perpendicular to the rotation axis, and at least one of the left and right right-angle points of the first square light-emitting chip is located on the extension line of the upper edge of the second square light-emitting chip. In this way, when the light source swings periodically, a low beam light pattern with a light and dark cut-off line can be directly formed.
[0024] Moreover, the first square light-emitting chip is a multi-chip light-emitting chip, and the low beam function and the high beam function can be integrated. That is, by controlling the on and off of the light-emitting chips in the upper part of the first square light-emitting chip, the on and off of the high beam can be realized.
[0025] Other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a three-dimensional structure diagram of an embodiment of the present invention;
[0027] Figure 2 is a front view of an embodiment of the present invention;
[0028] Figure 3 is Figure 2 a partial sectional view along line A-A in
[0029] Figure 4 is Figure 3 a sectional view along line B-B in
[0030] Figure 5 is a three-dimensional assembly drawing of an embodiment of the present invention;
[0031] Figure 6 is a side view of an embodiment of the present invention;
[0032] Figure 7 is Figure 6 a sectional view along line C-C in
[0033] Figure 8 is Figure 7 a sectional view along line D-D in
[0034] Figure 9 is a schematic diagram of the light pattern formed by the swinging of the first square light-emitting chip in an embodiment of the present invention;
[0035] Figure 10 is a schematic diagram of the light pattern formed by the swinging of the second square light-emitting chip in an embodiment of the present invention;
[0036] Figure 11 is a schematic diagram of the arrangement position between the first square light-emitting chip and the second square light-emitting chip in an embodiment of the present invention;
[0037] Figure 12 is Figure 11 a schematic diagram of the light pattern formed by the swinging of the first square light-emitting chip and the second square light-emitting chip together in
[0038] Figure 13 is a schematic diagram of the arrangement position between the first square light-emitting chip and the second square light-emitting chip in an embodiment of the present invention; wherein, the first square light-emitting chip is a multi-chip light-emitting chip;
[0039] Figure 14 is Figure 13 a schematic diagram of the low beam light pattern formed by the swinging of the first square light-emitting chip and the second square light-emitting chip together in
[0040] Figure 15 is Figure 13 a schematic diagram of the high beam light pattern formed by the single emission of the light-emitting chip at the upper end of the first square light-emitting chip in
[0041] Figure 16 is Figure 13 a schematic diagram of the high and low beam light pattern formed by the swinging of the first square light-emitting chip and the second square light-emitting chip together in
[0042] Description of the Reference Numerals
[0043] 1 Light source
[0044] 11 First square light-emitting chip 12 Second square light-emitting chip
[0045] 13 First light-emitting area 14 Second light-emitting area
[0046] 15 Third light-emitting area
[0047] 2 Rotating bracket 21 Rotating shaft
[0048] 3 Fixed bracket 31 Second bearing
[0049] 4 Rotating motor 41 Driving gear
[0050] 51 First bearing 52 Torsion spring
[0051] 6 Cam 7 Rotation speed sensor
[0052] 8 Lens 81 Lens bracket Detailed Embodiments
[0053] The following describes in detail the detailed embodiments of the present invention with reference to the accompanying drawings. It should be understood that the detailed embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not used to limit the present invention.
[0054] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "arranged", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection through an intermediate medium, and it may 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.
[0055] In addition, the terms "first", "second", and "third" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Therefore, the features defined with "first", "second", and "third" may explicitly or implicitly include one or more of the above features.
[0056] First of all, it should be noted that in the description of the following technical solution of the present invention, the directional words "front", "rear", etc. used are technical definitions based on the vehicle light module itself as the directional reference, wherein the direction along the vehicle light illumination is the front, and the opposite direction is the rear. The directional words "left and right" refer to the left and right sides along the vehicle light illumination direction, and the directional words "up and down" refer to the top and bottom along the vehicle light illumination direction. However, the "front", "rear", "left", "right", "up" and "down" do not refer to the directions that the vehicle light module must have when it is installed on the vehicle. In actual installation situations, due to the different settings of the vehicle lights, the limitation on the direction of the vehicle light module itself does not constitute a limitation on the protection scope of the vehicle light module of the present invention. The technical meaning of the direction of the vehicle light module of the present invention when it is applied to the vehicle should be interpreted according to the actual installation status and in combination with the technical meaning of the direction based on the vehicle light module itself.
[0057] Reference Figures 1 to 16 As shown, the vehicle lamp module of the basic embodiment of the present invention comprises a light source 1, wherein the light source 1 comprises at least a first square light-emitting chip 11 and is mounted on a rotatable rotating bracket 2 so that the light source 1 can follow the rotating bracket 2 and be driven to swing around the rotation axis at a set frequency; wherein an edge of the first square light-emitting chip 11 has an included angle of a set angle with a plane perpendicular to the rotation axis.
[0058] In the above basic implementation, the light emitting chip is usually arranged on a circuit board, that is, the circuit board provided with the first square light emitting chip 11 is installed on the rotating bracket 2. When the rotating bracket 2 is driven to swing around the rotation axis at a set frequency, and the first square light emitting chip 11 is in the on-state of emitting light, Figure 9As shown, a continuous light pattern will be formed. Conventionally, for the low beam illumination light pattern of a vehicle headlight, the low beam illumination light pattern can be divided into a horizontal part light pattern and an inclined part light pattern. The two are superimposed to form the low beam light pattern. The edge of the low beam light pattern is the well-known cut-off line between light and darkness, which is used to prevent glare to the eyes of the driver of an oncoming vehicle when meeting an oncoming vehicle. Most existing headlight illumination modules use a light shield to block the light emitted by the light source to form the low beam light pattern. Moreover, in order to implement a high / low beam integrated module, a power drive mechanism is usually set to control the up and down movement of the light shield to achieve high / low beam switching. However, due to the blockage of the light shield, some light will be lost, reducing the utilization rate of the light source, and the structure is also relatively complex. However, in the vehicle headlight module of the present invention, by setting an edge of the first square light-emitting chip 11 to form an angle with a plane perpendicular to the rotation axis, the inclined line in the cut-off line between light and darkness can be cleverly formed. In this way, as the rotating bracket 2 swings around the rotation axis at a set frequency, the inclined part light pattern of the low beam light pattern will be formed. The horizontal part light pattern thereof can be realized by using the existing conventional illumination formation, such as additionally setting a combined structure of a light-emitting chip and a reflector bowl so that the emitted light pattern correspondingly forms the horizontal part light pattern of the low beam light pattern; or a light-emitting chip can be set so that the light-emitting chip and the first square light-emitting chip 11 swing together with the rotating bracket 2 to correspondingly form the horizontal part light pattern of the low beam light pattern.
[0059] It should be noted that the installation orientation of the second square light-emitting chip 12 and the first square light-emitting chip 11 is consistent with the orientation of the vehicle headlight module of the present invention. Moreover, the rotation axis is arranged along the up and down direction of the vehicle headlight module to ensure that after swinging at a set frequency, the low beam light pattern can be formed; as Figure 9 shown, since the first square light-emitting chip 11 is inclined, its right-angle points can be divided into upper, lower, left, and right right angles according to the orientation. Although the above-mentioned inclined first square light-emitting chip 11 is mainly used to form the low beam light pattern, it can also be used to form the high beam.
[0060] Specifically, as Figure 11 and Figure 12 shown, the light source 1 further includes a second square light-emitting chip 12. The second square light-emitting chip 12 is arranged side by side with the first square light-emitting chip 11, and the edge at the upper end of the second square light-emitting chip 12 is parallel to the plane perpendicular to the rotation axis. At least one of the left and right right-angle points of the first square light-emitting chip 11 is located on the extension line of the edge at the upper end of the second square light-emitting chip 12; Figure 12Shows an example of the arrangement form of the second square light-emitting chip 12 and the first square light-emitting chip 11. In this example, the second square light-emitting chip 12 and the first square light-emitting chip 11 use square light-emitting chips. Both the left and right right-angle points of the first square light-emitting chip 11 fall on the extended edges of the upper end of the second square light-emitting chip 12, or only one of the left and right right-angle points of the first square light-emitting chip 11 falls on the extended edge of the upper end of the second square light-emitting chip 12. In this way, the emitted light rays of the second square light-emitting chip 12 and the first square light-emitting chip 11 can form a low beam light pattern with a well-connected light and dark cut-off line. Similarly, the second square light-emitting chip 12 and the first square light-emitting chip 11 can also use rectangular light-emitting chips, or one uses a square light-emitting chip and the other uses a rectangular light-emitting chip; in addition, when only one of the left and right right-angle points of the first square light-emitting chip 11 falls on the extended edge of the upper end of the second square light-emitting chip 12, a low beam light pattern corresponding to left-hand drive or right-hand drive can be formed. Especially when the first square light-emitting chip 11 uses a square light-emitting chip and both its left and right right-angle points fall on the extended edges of the upper end of the second square light-emitting chip 12, a vehicle headlight module that can simultaneously correspond to left-hand drive and right-hand drive can be formed. According to the usage needs, the switching between left-hand drive and right-hand drive can be conveniently realized.
[0061] The first square light-emitting chip 11 and the second square light-emitting chip 12 can use LED chips, OLED light-emitting chips, or laser-based light-emitting chips, etc.
[0062] In Figure 12 In a shown example, preferably, the number of the second square light-emitting chips 12 is two, and the number of the first square light-emitting chips 11 is one. It can be understood that the numbers of the second square light-emitting chips 12 and the first square light-emitting chips 11 can be selected and set according to needs; in addition, compared with a lighting system that conventionally uses matrix light-emitting chips as the light source, since the vehicle headlight module of the present invention uses fewer light-emitting chips, under the same conditions and corresponding to the same heat dissipation device, a better heat dissipation effect can be obtained.
[0063] In addition, in Figures 12 to 16 In the shown example, both the second square light-emitting chip 12 and the first square light-emitting chip 11 are arranged perpendicular to the vehicle headlight irradiation direction. However, the second square light-emitting chip 12 and the first square light-emitting chip 11 can also be inclined towards the vehicle headlight irradiation direction, as long as a low beam light pattern can be finally formed.
[0064] In a specific embodiment, in order to obtain a light pattern that is convenient for the human eye to recognize, a frequency requirement is set to ensure that it is greater than the frequency that can be recognized by the human eye, generally greater than 30 Hz, such as 40 Hz, 50 Hz, 80 Hz, 90 Hz, 100 Hz, etc.
[0065] In a specific embodiment, the set angle is not less than 15° and less than 90°; further, according to the existing headlamp standards, the left end of the cut-off line is horizontal, and the right end, i.e., the HV point, slopes upward by 15° or 45°. Therefore, the set angle is preferably 15° or 45°; it can be understood that the above angle is selected according to the existing standards. If the standards are revised and the angle is changed, the headlamp module of the present invention can also be applicable to the modified angle value.
[0066] The light source 1 can follow the rotating bracket 2 to swing at a set frequency through various specific structures. For example, the rotating bracket 2 is connected to a servo motor, and by controlling the forward and reverse rotation of the servo motor, the rotating bracket 2 swings at a set frequency.
[0067] In a preferred embodiment of the present invention, as Figures 1 to 8 shown, the rotating bracket 2 is installed on the fixed bracket 3 through a rotating shaft 21, and the rotating shaft 21 can rotate relative to the fixed bracket 3. Specifically, as Figure 3 shown, a second bearing 31 can be embedded in the fixed bracket 3. In order not to affect the projection of the light pattern, two second bearings 31 are provided on the fixed bracket 3. Correspondingly, the rotating bracket 2 is also provided with a rotating shaft 21 at each end. The second bearing 31 can be fixedly connected in a sleeved manner with the rotating shaft 21 to realize the swinging movement of the rotating bracket 21, ensuring the stability of the swinging movement of the rotating bracket 21; in Figure 5 the example shown, the rotating shaft 21 is located at the front end of the rotating bracket 2, and the mounting surface of the light source 1 is located at the rear end of the rotating bracket 2. The rotating bracket 2 can also have other specific structural forms, such as the rotating shaft 21 being located at the rear end of the rotating bracket 2 and the mounting surface of the light source 1 being located at the front end of the rotating bracket 2, or a connecting rod being installed at the rear end of the mounting surface of the light source 1, and the connecting rod being fixedly connected with the rotating shaft 21; wherein, the axis of the rotating shaft 21 is the rotation axis.
[0068] Further, referring to Figures 3 to 7 shown, the rotating bracket 2 is respectively connected to the rotating motor 4 and the fixed bracket 3 through a swinging structure to realize the periodic swinging of the rotating bracket 2. Specifically, the swinging structure includes a first bearing 51 and a torsion spring 52. As Figure 7 shown, the first bearing 51 is installed on the rotating bracket 2. As Figure 4As shown, a torsion spring 52 is arranged between the rotating bracket 2 and the fixed bracket 3. Its spring end is connected to the fixed bracket 3, and the torsion arm is connected to the rotating bracket 2, which can provide a restoring force during the swinging process of the rotating bracket 2. A driving gear 41 is fixedly connected to the rotating shaft of the rotating motor 4. A cam 6 is connected between the driving gear 41 and the first bearing 51. Teeth that can cooperate with the driving gear 41 are formed on the cam 6. In this way, the rotating motor 4 can drive the cam 6 to rotate, and through the first bearing 51, the rotating bracket 2 is pushed to swing to one side around the rotating shaft 21, and then under the action of the restoring force of the torsion spring 52, it swings in the opposite direction, enabling the rotating bracket 2 to swing periodically, so that the light emitted by the light source 1 can form a continuous and uniform light pattern.
[0069] Within the scope of the technical concept of the present invention, the above embodiment can also be simply changed to form another embodiment. A hydraulic cylinder is used to replace the rotating motor 4. The piston rod of the hydraulic cylinder is connected to the rotating bracket 2, and the rotating bracket 2 is driven to swing around the rotating shaft 21 through the telescopic movement of the piston rod. At the same time, there is no need to set a torsion spring 52 between the rotating bracket 2 and the fixed bracket 3. Controlling the telescopic frequency of the piston rod can make the rotating bracket 2 swing periodically.
[0070] In a specific embodiment, as Figure 3 and Figure 7 shown, a rotational speed sensor 7 can be set to detect the rotational frequency of the cam 6 to ensure that the swinging frequency of the rotating bracket 2 is greater than 30 Hz. Specifically, the rotational speed sensor 7 can be installed on the fixed bracket 3; among them, the rotational speed sensor 7 adopts existing instrument equipment that can be used to detect rotational speed. Preferably, a Hall sensor is adopted.
[0071] Generally, as Figures 1 to 3 and Figure 5 shown, the vehicle lamp module further includes a lens 8. The lens 8 is connected to the fixed bracket 3 through a lens bracket 81, and a space is formed between the lens bracket 81 and the fixed bracket 3. The rotating bracket 2 is located within this space.
[0072] Furthermore, the light source 1 is located within the focal area of the lens 8, that is to say, during the periodic swinging of the light source 1 along with the rotating bracket 2, the light source 1 swings near the focus of the lens 8 so that the scattered light emitted by the light source 1 forms a parallel light beam after passing through the lens 8.
[0073] In addition, in order to form a vehicle lamp module with integrated high and low beams, the first square light-emitting chip 11 can adopt a multi-chip light-emitting chip; Figure 13 shows an example where the first square light-emitting chip 11 adopts a two-chip light-emitting chip. The following combines Figure 13As shown in the figure, the light-emitting chips at the lower end of the first square light-emitting chip 11 can be used to form low beam, and the light-emitting chips at the upper end can be used to form high beam; when only the light-emitting chips at the upper end of the first square light-emitting chip 11 are turned on, as Figure 15 shown, a light pattern as shown in the third light-emitting area 15 can be formed, and the light is emitted through the lens 8 to form a high-beam light pattern. When the light-emitting chips at the lower end of the first square light-emitting chip 11 and the second square light-emitting chip 12 are turned on simultaneously, as Figure 14 shown, a light pattern as shown in the combination of the first light-emitting area 13 and the second light-emitting area 14 can be formed, and the light is emitted through the lens 8 to form a low-beam light pattern. Moreover, it can be applied to vehicles with left-hand drive or right-hand drive; when the light-emitting chips at the upper end of the first square light-emitting chip 11, the light-emitting chips at the lower end of the first square light-emitting chip 11 and the second square light-emitting chip 12 are turned on simultaneously, as Figure 16 shown, a light pattern as shown in the first light-emitting area 13, the second light-emitting area 14 and the third light-emitting area 15 can be formed, and the light is emitted through the lens 8 to form a low-beam light pattern and a high-beam light pattern that exist simultaneously; the case where the first square light-emitting chip 11 uses other multi-chip light-emitting chips can be analogized by the above example of two chips.
[0074] Referring to Figures 1 to 16 shown, the headlight module of the preferred embodiment of the present invention includes a light source 1, a rotating bracket 2, a fixed bracket 3 and a rotating motor 4; the light source 1 includes a first square light-emitting chip 11 and a second square light-emitting chip 12. The first square light-emitting chip 11 and the second square light-emitting chip 12 are arranged side by side and are mounted on the rotating bracket 2 through a circuit board; each of the upper and lower ends of the rotating bracket 2 is provided with a rotating shaft 21, and each rotating shaft 21 is fixedly sleeved with two second bearings 31 on the fixed bracket 3 so that the rotating bracket can rotate relative to the fixed bracket 3 around the rotating shaft 21; as Figure 12 or Figure 14 shown, one of the left and right edges at the upper end of the first square light-emitting chip 11 has an included angle with a plane perpendicular to the rotation axis of the rotating shaft 21. According to the current standard regulations for automotive LED headlamps, the set angle can be 15° or 45°. The edge at the upper end of the second square light-emitting chip 12 needs to be parallel to the plane perpendicular to the rotation axis of the rotating shaft 21. At least one of the left and right right-angle points of the first square light-emitting chip 11 is located on the extension line of the edge at the upper end of the second square light-emitting chip 12. In this way, as the first square light-emitting chip 11 and the second square light-emitting chip 12 swing periodically together, a low-beam light pattern or a high-beam light pattern can be formed. When the first square light-emitting chip 11 is a multi-chip light-emitting chip, as Figure 16 shown, a low-beam light pattern and a high-beam light pattern that exist simultaneously can be formed; referring to Figure 3 , Figure 5 and Figure 7As shown in the figure, the rotation axis 21 is located at the front end of the rotation bracket 2, the mounting surface of the light source 1 is located in the middle area of the rotation bracket 2, and a first bearing 51 is also installed at the rear end of the rotation bracket 2. Correspondingly, the rotation motor 4 is installed at the rear end of the fixed bracket 3, and a driving gear 41 is fixedly connected to the rotating shaft of the rotation motor 4. A cam 6 is arranged between the driving gear 41 and the first bearing 51. The cam 6 is provided with teeth that can mesh with the driving gear 41. At the same time, a torsion spring 52 is installed between the rotation bracket 2 and the fixed bracket 3 near the rotation axis 21. The spring end of the torsion spring 52 is connected to the fixed bracket 3, and its torsion arm is connected to the rotation bracket 2. In this way, driven by the rotation motor 4, the driving gear 41 drives the cam 6 to rotate, and the rear end of the rotation bracket 2 is pushed by the first bearing 51 to swing to one side deviating from its middle position. Then, under the action of the torsion spring 52, the rotation bracket 2 returns to its original position. As the rotating shaft of the rotation motor 4 continuously rotates, the rotation bracket 2 swings periodically, that is, the light source 1 follows the rotation bracket 2 and swings at a set frequency. The set frequency needs to be greater than the frequency that can be recognized by the human eye, generally greater than 30 Hz. To ensure the stability of the rotation frequency of the rotation bracket 2, a rotation sensor 7 can be set to detect the rotation frequency of the cam 6; in addition, as Figure 3 shown in the figure, a lens 8 can be arranged at the front end of the vehicle lamp module. The lens 8 is connected to the fixed bracket 3 through a lens bracket 81. The light source 1 is located within the focal area of the lens 8, so that the scattered light emitted by the light source 1 forms a parallel light beam through the lens 8.
[0075] As can be seen from the above, the technical solution of the above-mentioned high and low beam integrated vehicle lamp module omits conventional optical structures such as light shields and reflectors, simplifies the overall design structure, and also reduces the assembly difficulty. Moreover, the uniformity of the formed light pattern is relatively good.
[0076] An embodiment of the vehicle of the present invention may have the vehicle lamp module described in the above embodiment, that is, it adopts all the technical solutions of all the embodiments of the above vehicle lamp module. Therefore, it has at least all the beneficial effects brought by all the technical solutions of all the embodiments of the above vehicle lamp module.
[0077] 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 thereto. 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, including any suitable combination of each specific technical feature. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods. But these simple modifications and combinations should also be regarded as the content disclosed by the present invention and fall within the protection scope of the present invention.
Claims
1. A vehicle lamp module, comprising a light source (1), characterized in that, The light source (1) includes at least a first square light-emitting chip (11) and is mounted on a rotatable rotating bracket (2) so that the light source (1) can follow the rotating bracket (2) and be driven to swing around the rotation axis at a set frequency; wherein, the rotation axis is arranged along the up-down direction of the vehicle headlight module, and an edge of the first square light-emitting chip (11) has a set angle with a plane perpendicular to the rotation axis.
2. The headlight module according to claim 1, characterized in that, It further includes a fixed bracket (3) and a rotating motor (4) that can be rotatably connected to the rotating shaft (21) on the rotating bracket (2), and the rotating bracket (2) is respectively connected to the rotating motor (4) and the fixed bracket (3) through a swinging structure.
3. The headlight module according to claim 2, characterized in that, The swinging structure includes a first bearing (51) mounted on the rotating bracket (2) and a torsion spring (52) arranged between the rotating bracket (2) and the fixed bracket (3). A driving gear (41) is fixedly connected to the rotating shaft of the rotating motor (4), and the driving gear (41) is connected to the first bearing (51) through a cam (6). The cam (6) is provided with teeth that can mesh with the driving gear (41). The torsion spring (52) includes a spring end connected to the fixed bracket (3) and a torsion arm connected to the rotating bracket (2).
4. The headlight module according to claim 3, wherein, A rotational speed sensor (7) for detecting the rotation frequency of the cam (6) is provided on the fixed bracket (3).
5. The headlamp module according to claim 2, characterized in that It further includes a lens (8). The lens (8) is connected to the fixed bracket (3) through a lens bracket (81), and the rotating bracket (2) is located in the space formed between the lens bracket (81) and the fixed bracket (3).
6. The headlight module according to claim 5, characterized in that The light source (1) is located in the focal area of the lens (8).
7. The headlight module according to any one of claims 1 to 6, characterized in that The light source (1) further includes a second square light-emitting chip (12) arranged side by side with the first square light-emitting chip (11). The edge at the upper end of the second square light-emitting chip (12) is parallel to the plane perpendicular to the rotation axis, and at least one of the left and right right-angle points of the first square light-emitting chip (11) is located on the extension line of the edge at the upper end of the second square light-emitting chip (12).
8. The headlight module according to claim 7, wherein, The first square light-emitting chip (11) is a multi-chip light-emitting chip.
9. The headlight module according to any one of claims 1 to 6, characterized in that, The set angle is not less than 15° and less than 90°.
10. The vehicle lamp module according to claim 9, characterized in that, The set angle is 15° or 45°.
11. The headlight module according to any one of claims 1 to 6, characterized in that, The set frequency is greater than 30 Hz.
12. The headlight module according to any one of claims 2 to 6, characterized in that, The rotating shaft (21) is mounted on the fixed bracket (3) through a second bearing (31).
13. A vehicle, characterized in that, It includes a vehicle headlight module according to any one of claims 1 to 12.
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