CN112902107B - Method for forming emergent light shape of car lamp lighting module - Google Patents
Method for forming emergent light shape of car lamp lighting module Download PDFInfo
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- CN112902107B CN112902107B CN202110226630.0A CN202110226630A CN112902107B CN 112902107 B CN112902107 B CN 112902107B CN 202110226630 A CN202110226630 A CN 202110226630A CN 112902107 B CN112902107 B CN 112902107B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to a vehicle lighting method, and discloses a method for forming an emergent light shape of a vehicle lamp lighting module, wherein a light source (1) of the vehicle lamp lighting module at least comprises a first square light-emitting chip (11); wherein the forming method comprises the following steps: firstly, the first square luminous chip (11) is arranged in a direction that one edge or an edge extension line of the first square luminous chip (11) and a plane vertical to a rotation axis intersect at a set angle; secondly, the light source (1) is driven to swing around the rotation axis according to a set frequency so as to form an emergent light shape. The forming method of the emergent light shape of the car lamp lighting module can improve the light effect and is beneficial to simplifying the structural design.
Description
Technical Field
The invention relates to a vehicle lighting method, in particular to a method for forming an emergent light shape of a vehicle lamp lighting module.
Background
The headlamps are arranged on two sides of the head of the automobile and used for illuminating a driving road at night. There are two lamp systems and four lamp systems. Since the lighting effect of the headlamps directly affects the operation and traffic safety of night driving, the traffic control departments in all countries of the world often stipulate the lighting standards in the form of laws.
The automobile headlamp has a unique light distribution structure and can be divided into a high beam and a low beam according to the type of light emission. For example, the light emitted from the high beam is reflected by the reflector and then directly emitted forward to form the "high beam". The light emitted by the low-beam light is blocked to the upper half part of the lampshade reflector by the shading plate, and the reflected light rays are downwards diffused to the ground to form low-beam light, so that dazzling of drivers on opposite vehicles is avoided. The switch is usually arranged in a far and near light integrated form, the far light function is realized by switching of the light shielding plates, and a power driving mechanism for controlling the light shielding plates to move up and down is also arranged corresponding to the light shielding plates; however, the light energy of the light source is lost, and the shielded light also causes a rapid temperature rise in the light shielding plate and the area near the light shielding plate, which requires high heat resistance of the mechanical structure.
In addition, the conventional high beam and low beam lamps are generally classified into a reflective type and a projection type. The reflection type mainly comprises a light source and a light reflecting bowl, and a light and shade cut-off line is realized by the boundary of a reflecting surface on the light reflecting bowl. The projection type light source comprises a light source, a light reflecting bowl, a light shielding plate and a lens, a light and shade cut-off line is realized by the light shielding plate, a switch of a high beam function is realized by switching the light shielding plate, and the structure of components is complex.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for forming the emergent light shape of a car lamp lighting module, which not only can improve the light efficiency, but also is beneficial to simplifying the structural design.
In order to achieve the above object, the present invention provides a method for forming an emergent light shape of a vehicle lamp lighting module, wherein a light source of the vehicle lamp lighting module at least comprises a first square light emitting chip; wherein the forming method comprises the following steps: first, the first square luminous chip is arranged in an orientation that one edge or an edge extension line of the first square luminous chip intersects with a plane vertical to a rotation axis according to a set angle; secondly, the light source is driven to swing around the rotating axis according to a set frequency so as to form an emergent light shape.
Preferably, the set frequency is greater than 30 Hz.
Preferably, the set angle is not less than 15 ° and less than 90 °.
More preferably, the set angle is 15 ° or 45 °.
Furthermore, the light source also comprises a second square light-emitting chip arranged side by side with the first square light-emitting chip, in the first step, at least one of the left and right corner points of the first square light-emitting chip is arranged on the extension line of the edge at the upper end of the second square light-emitting chip, and the edge at the upper end of the second square light-emitting chip is parallel to the plane perpendicular to the rotation axis.
More preferably, the method further comprises a third step, wherein the first square light emitting chip is a multi-chip light emitting chip and comprises a low beam light emitting chip for forming a low beam and a high beam light emitting chip for forming a high beam, and switching of high beam and low beam illumination is realized by controlling on and off of the high beam light emitting chip.
Specifically, in the second step, the light source is driven to oscillate at a set frequency by a rotating motor.
Specifically, the car lamp lighting module further comprises a rotating bracket for mounting the light source and a fixed bracket connected with a rotating shaft of the rotating bracket; in the second step, the rotating motor drives the light source to swing around the rotating shaft according to a set frequency through the rotating bracket.
Furthermore, a torsion spring is connected between the rotating bracket and the fixed bracket, and a cam is connected between the rotating bracket and the rotating motor; in the second step, the rotating motor pushes the rotating bracket to rotate around the rotating shaft through the cam, then the rotating bracket rotates under the restoring force of the torsion spring, and the process is repeated, so that the light source swings according to the set frequency along with the rotating bracket.
Preferably, a rotation speed sensor is arranged on the fixed support, and the rotation frequency of the cam is detected through the rotation speed sensor so as to ensure that the light source swings at a set frequency.
Typically, the vehicle lamp lighting module further comprises a lens, the light source is located in a focal region of the lens, and in the second step, light emitted by the light source is projected through the lens to form an emergent light shape.
According to the technical scheme, in the forming method of the emergent light shape of the car lamp lighting module, the first square light-emitting chip is arranged such that an included angle with a set angle is formed between one edge of the first square light-emitting chip and a plane perpendicular to the rotation axis, so that an inclined line of a cut-off line can be formed in the process that the light source swings around the rotation axis according to a set frequency, a light shielding plate structure in the conventional design of the car lamp lighting module can be omitted, and the structural design is simplified; moreover, the first square light-emitting chip is a square light-emitting chip, and under the condition that the first square light-emitting chip is arranged in the above direction, the two edges at the upper end of the first square light-emitting chip can enable the first square light-emitting chip to be arranged in the above direction, so that a light and shade cut-off line shape corresponding to left driving or right driving can be realized.
Further, a second square light emitting chip may be provided which is arranged side by side with the first square light emitting chip, the second square light emitting chip being arranged such that an edge of an upper end thereof is parallel to a plane perpendicular to the rotation axis, and at least one of right and left right corner points of the first square light emitting chip being arranged on an extension line of the edge of the upper end of the second square light emitting chip, so that a low beam shape having a cut-off line of light and shade can be conveniently formed; the utilization rate of the light source is improved.
Further advantages of the present invention, as well as technical effects of preferred embodiments, are further described in the following detailed description.
Drawings
FIG. 1 is a block diagram of the steps of a method for forming an exit light pattern of a vehicle lamp lighting module according to an embodiment of the present invention;
FIG. 2 is a perspective view of one embodiment of the present invention;
FIG. 3 is a front view of one embodiment of the present invention;
FIG. 4 is a partial cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;
FIG. 6 is a perspective assembly view of one embodiment of the present invention;
FIG. 7 is a side view of one embodiment of the present invention;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;
FIG. 9 is a cross-sectional view taken along line D-D of FIG. 8;
FIG. 10 is a schematic diagram of a light pattern formed by the wobbling of a first square light emitting chip in an embodiment of the invention;
FIG. 11 is a schematic diagram of a light pattern formed by the swinging of a second square light emitting chip in one embodiment of the present invention;
FIG. 12 is a schematic diagram showing the arrangement positions of a first square light-emitting chip and a second square light-emitting chip according to an embodiment of the present invention;
FIG. 13 is a schematic view of the light pattern of FIG. 12 formed by the first square light emitting chip and the second square light emitting chip swinging together;
FIG. 14 is a schematic diagram of the arrangement positions between a first square light emitting chip and a second square light emitting chip according to an embodiment of the invention; the first square light-emitting chip is a multi-chip light-emitting chip;
FIG. 15 is a schematic diagram of a low beam light shape formed by the first square light emitting chip and the second square light emitting chip in FIG. 14 swinging together;
FIG. 16 is a schematic diagram showing a high beam pattern formed by the light emitting chips on the upper end of the first square light emitting chip of FIG. 14 emitting light individually;
fig. 17 is a schematic view of a high beam and a low beam formed by the first square light emitting chip and the second square light emitting chip in fig. 14 swinging together.
Description of the reference numerals
1 light source
11 first square light emitting chip 12 second square light emitting chip
13 a first light-emitting region 14 and a second light-emitting region
15 third light-emitting area
2 rotating bracket 21 rotating shaft
3 second bearing of fixing bracket 31
4 rotating electric machine 41 driving gear
51 first bearing 52 torsion spring
6 cam 7 speed sensor
8 lens 81 lens holder
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and therefore the features defined "first", "second", "third" may explicitly or implicitly include one or more of the features described.
First, in the following description of the present invention, the terms "front" and "rear" are used to define the technical definition of the vehicle lamp module itself as the orientation reference, where the illumination direction of the vehicle lamp is front, and the opposite direction is rear, the terms "left" and "right" refer to the left and right sides along the illumination direction of the vehicle lamp, and the terms "up" and "down" refer to the upper and lower sides along the illumination direction of the vehicle lamp. However, the terms "front", "rear", "left", "right", "upper" and "lower" do not refer to the orientation that the lamp module is necessarily attached to the vehicle, and in the actual installation situation, the orientation of the lamp module itself is limited due to the different installation positions of the lamps, and does not limit the protection scope of the lamp module according to the present invention.
Referring to fig. 1, 4 and 10, in the method for forming the light emitting shape of the vehicle lamp lighting module according to the basic embodiment of the present invention, the light source 1 of the vehicle lamp lighting module includes at least a first square light emitting chip 11; wherein, the forming method comprises the following steps: a first step S1 of arranging the first square light-emitting chip 11 in an orientation in which one edge or an edge extension line of the first square light-emitting chip 11 intersects a plane perpendicular to the rotation axis at a set angle; in a second step S2, the light source 1 is driven to oscillate around the rotation axis at a set frequency to form an exit light shape.
In the above basic embodiment of the present invention, by arranging the first square light-emitting chips 11 in the above orientation and driving the light source 1 to oscillate at a predetermined frequency around the rotation axis, it is possible to have a light shape forming an inclined line portion having a cut-off line, it is possible to omit a light shield structure in the design, the structural design of the lamp illumination module is optimized, and a novel method for forming an exit light shape of the lamp illumination module is provided, which expands the selection range of the design of the lamp illumination module.
In addition, in order to make the emergent light shape have the shape of complete cut-off line, there are many methods, for example, on the basis of the above-mentioned basic embodiment, a conventional lighting module is further provided, as long as the lighting module can provide the light shape of the horizontal part of the emergent light shape, such as forming the horizontal light shape by a conventional set of fixed-position LED light sources, and combining with the first square light-emitting chip 11 to form a low-beam light shape with complete cut-off line.
Preferably, as shown in fig. 12 to 17, a second square light emitting chip 12 arranged side by side with the first square light emitting chip 11 may be provided such that an edge of an upper end or a lower end of the second square light emitting chip 12 is parallel to a plane perpendicular to the rotation axis, while at least one of right and left straight corner points of the first square light emitting chip 11 is arranged on an extension line of an edge of an upper end of the second square light emitting chip 12; thus, it is not necessary to additionally provide a conventional lighting module for forming a horizontal partial light shape as in the above embodiment; as the first square light emitting chip 11 and the second square light emitting chip 12 swing together around the rotation axis at a set frequency, a complete low beam light shape can be formed, and the structural design is more concise; in addition, in the conventional headlamp module, a light emitting chip group is generally used as an irradiation light source to ensure that an emergent light shape has sufficient brightness, but a higher requirement is made on the heat dissipation performance of the irradiation light source, and the adoption of a light shielding plate structure not only causes the loss of light energy of the irradiation light source, but also causes the temperature of the light shielding plate and a region near the light shielding plate to be increased sharply; however, in the forming method of the emergent light shape of the car lamp lighting module, the first square light emitting chip 11 and the second square light emitting chip 12 swing according to the set frequency, the function of the light emitting chip group can be realized, meanwhile, as the number of the first square light emitting chip 11 and the second square light emitting chip 12 is less than that of the light emitting chips in the light emitting chip group in the conventional head lamp module, the same heat dissipation device can achieve better heat dissipation effect, and moreover, the light shielding plate structure is not required to be arranged, the temperature of the light shielding plate and the area nearby the light shielding plate can not be increased sharply, and the structure is simplified conveniently; is convenient for production and assembly.
Further, referring to fig. 14 to 17, the first square light-emitting chip 11 may be a multi-chip light-emitting chip, and the first square light-emitting chip 11 shown in fig. 14 is exemplified by a two-chip light-emitting chip, which may be divided into a low-beam light-emitting chip for forming a low beam and a high-beam light-emitting chip for forming a high beam, the low-beam light-emitting chip being located at a lower end of the first square light-emitting chip 11, and the high-beam light-emitting chip being located at an upper end of the first square light-emitting chip 11; thus, a third step of switching between high-beam and low-beam illumination by controlling the on/off of the high-beam light emitting chip can be formed after the second step in the basic embodiment of the present invention; thus, the forming method of the emergent light shape of the vehicle lamp lighting module for integrating the far light and the near light is very simply realized; compared with the conventional far and near light integrated module utilizing the light screen, the structure is simpler, the reaction is more agile, and the design is more exquisite.
Fig. 14 shows an example of the first square light-emitting chip 11 using a two-chip light-emitting chip, and as described below with reference to fig. 14, the light-emitting chip at the lower end of the first square light-emitting chip 11 may be used to form a low beam and the light-emitting chip at the upper end thereof may be used to form a high beam; when the light emitting chips at the upper ends of the first square light emitting chips 11 are separately turned on, as shown in fig. 16, a light shape shown as the third light emitting area 15 may be formed to be emitted through the lens 8 to form a high beam shape, and when the light emitting chips at the lower ends of the first square light emitting chips 11 and the second square light emitting chips 12 are simultaneously turned on, as shown in fig. 15, a light shape shown as the combination of the first light emitting area 13 and the second light emitting area 14 may be formed to be emitted through the lens 8 to form a low beam shape, and furthermore, can be applied to a left-or right-driving vehicle; when the light emitting chip at the upper end of the first square light emitting chip 11, the light emitting chip 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 shown in fig. 17, light shapes shown as the first light emitting region 13, the second light emitting region 14 and the third light emitting region 15 can be formed, and light is emitted through the lens 8 to form a low beam light shape and a high beam light shape which exist simultaneously.
In a specific embodiment, in order to obtain a light shape that is easy to recognize by human eyes, the frequency is set to be higher than the frequency that can be recognized by human eyes, and is generally higher than 30Hz, such as 40Hz, 50Hz, 80Hz, 90Hz, 100Hz, and the like.
In a specific embodiment, the set angle is not less than 15 ° and less than 90 °; further, according to the existing standards regarding headlamps, the left end of the cutoff line is horizontal, and the right end, i.e., the HV point, is inclined upward by 15 ° or 45 °, and for this reason, the set angle is preferably 15 ° or 45 °; it is understood that the above-mentioned angle is selected according to the existing standard, and if the standard is revised and the angle is changed, the technical solution of the present invention can also be applied to the revised angle value.
To assist understanding, the above-described basic embodiment of the method for forming the exit light shape of the vehicular lamp illumination module according to the present invention will be further described below with reference to specific configurations.
As shown in fig. 4 to 8, in the vehicle lamp lighting module, the rotating bracket 2 has a mounting surface for mounting the light source 1, a rotating shaft 21 is respectively provided at upper and lower ends of a front portion of the rotating bracket 2, and the rotating shaft 21 can be fixedly sleeved with the second bearing 31 on the fixed bracket 3, so that the rotating bracket 2 can swing around the rotating shaft 21 relative to the fixed bracket 3; in the specific embodiment, the rotating bracket 2 is driven to swing by the rotating motor 4, so as to drive the light source 1 to swing around the rotating shaft 21 according to a set frequency, and a uniform and stable light shape is formed.
Specifically, a torsion spring 52 is connected between the rotating bracket 2 and the fixed bracket 3, the torsion spring 52 is arranged between the rotating bracket 2 and the fixed bracket 3, the spring end of the torsion spring is connected with the fixed bracket 3, and the torsion arm is connected with the rotating bracket 2; a first bearing 51 is installed on the rotating bracket 2, a driving gear 41 is fixedly connected to a rotating shaft of the rotating motor 4, a cam 6 is connected between the driving gear 41 and the first bearing 51, and gear teeth capable of being matched with the driving gear 41 are formed on the cam 6; thus, as shown in fig. 9, the rotating motor 4 drives the cam 6 to rotate, the first bearing 51 pushes the rotating bracket 2 to swing to one side around the rotating shaft 21, and then swing to the opposite direction under the restoring force of the torsion spring 52, so that the rotating bracket 2 can swing periodically, and thus the light source 1 swings around the rotating axis according to a set frequency, and the emitted light can form a continuous and uniform emergent light shape.
As can be seen from the above, in the above basic embodiment of the method for forming the light emitting shape of the car light illumination module according to the present invention, the light source 1 can be swung at the set frequency by a simple structural design, and the control system of the vehicle can control the rotating motor 4 conveniently, and the control procedure is simple, so that the light source 1 can be swung at the set frequency accurately.
It should be noted that the specific structural form of the method for forming the light emitting shape of the vehicle lamp lighting module according to the present invention is not limited to the specific form shown in fig. 4 to 8; for example, a hydraulic cylinder is used for replacing the rotating motor 4, a piston rod of the hydraulic cylinder is connected with the rotating bracket 2, the rotating bracket 2 is driven to swing around the rotating shaft 21 through the telescopic motion of the piston rod, meanwhile, a torsion spring 52 is not required to be arranged between the rotating bracket 2 and the fixing part 3, and the rotating bracket 2 can periodically swing by controlling the telescopic frequency of the piston rod; or, the rotating bracket 2 is directly connected with a rotating shaft of the servo motor, and the rotating bracket 2 swings according to a set frequency by controlling the servo motor to rotate positively and negatively.
Referring to fig. 3 and 7, as a preferred embodiment, the method for forming an exit light shape of a vehicle lamp lighting module according to the present invention further includes the steps of detecting a swing frequency of the rotating bracket 2, and controlling the swing frequency of the rotating bracket 2 to be greater than a human eye recognizable frequency; specifically, a rotation speed sensor 7 may be provided to detect the rotation frequency of the cam 6, indirectly controlling the oscillation frequency of the rotating bracket 2 to ensure that the oscillation frequency of the rotating bracket 2 is greater than 30Hz, and specifically, the rotation speed sensor 7 may be mounted on the fixed bracket 3; the rotation speed sensor 7 is an existing instrument capable of detecting the rotation speed, and preferably, a hall sensor is used.
Generally, as shown in fig. 1 to 3 and 5, the lamp lighting 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, and the rotating bracket 2 is located in the space.
Further, the light source 1 is located in the focal region of the lens 8, that is, during the periodic swinging of the light source 1 along with the rotating bracket 2, the light source 1 swings near the focal point of the lens 8, so that the scattered light emitted by the light source 1 forms an approximately parallel light beam after passing through the lens 8.
Referring to fig. 2 to 17, the lamp lighting module for a vehicle according to 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 comprises a first square light-emitting chip 11 and a second square light-emitting chip 12, wherein the first square light-emitting chip 11 and the second square light-emitting chip 12 are arranged side by side and are arranged on the rotating bracket 2 through a circuit board; the upper end and the lower end of the rotating bracket 2 are respectively provided with a rotating shaft 21, and each rotating shaft 21 is fixedly sleeved with two second bearings 31 on the fixed bracket 3 correspondingly, so that the rotating bracket can rotate around the rotating shaft 21 relative to the fixed bracket 3; as shown in fig. 13 or 15, one of the left and right edges of 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 rotation shaft 21, the set angle may be 15 ° or 45 ° according to the current standard of the LED headlamp for automobiles, the edge of 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 rotation shaft 21, and at least one of the left and right straight corner points of the first square light-emitting chip 11 is located on the extension line of the edge of the upper end of the second square light-emitting chip 12, so that a low beam shape or a high beam shape can be formed as the first square light-emitting chip 11 and the second square light-emitting chip 12 periodically swing together, and when the first square light-emitting chip 11 is a multi-chip light-emitting chip, as shown in fig. 17, a low beam shape and a high beam shape can be formed simultaneously; referring to fig. 4, 6 and 8, the rotation shaft 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, the first bearing 51 is further 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, the driving gear 41 is fixedly connected to the rotation shaft of the rotation motor 4, the cam 6 is disposed between the driving gear 41 and the first bearing 51, the cam 6 is provided with gear teeth capable of meshing with the driving gear 41, meanwhile, a torsion spring 52 is installed between the rotation bracket 2 and the fixed bracket 3 at a position close to the rotation shaft 21, the spring end of the torsion spring 52 is connected to the fixed bracket 3, and the torsion arm thereof is connected to the rotation bracket 2, so that the driving gear 41 drives the cam 6 to rotate under the driving of the rotation motor 4, the rear end of the rotation bracket 2 is pushed to swing to a side deviating from the middle position thereof by the first bearing 51, under the action of the torsion spring 52, the rotating bracket 2 is returned to the original position, the rotating bracket 2 is made to periodically swing along with the continuous rotation of the rotating shaft of the rotating motor 4, namely the light source 1 swings along with the rotating bracket 2 according to a set frequency, the set frequency is required to be higher than the frequency recognizable by human eyes and is generally higher than 30Hz, and in order to ensure the stability of the swing frequency of the rotating bracket 2, a rotating sensor 7 can be arranged for detecting the rotating frequency of the cam 6; in addition, as shown in fig. 4, a lens 8 may be disposed at the front end of the lamp module, the lens 8 is connected to the fixing bracket 3 through a lens bracket 81, and the light source 1 is located in the focal region of the lens 8, so that the scattered light emitted by the light source 1 forms an approximately parallel light beam through the lens 8.
Referring to fig. 1 to 17, a method for forming an exit light pattern of a vehicle lamp lighting module according to a preferred embodiment of the present invention includes the steps of:
arranging a first square light-emitting chip 11 in a direction that one edge or an edge extension line of the first square light-emitting chip 11 intersects a plane perpendicular to a rotation axis at a set angle, arranging a second square light-emitting chip 12 such that an edge at the upper end thereof is parallel to the plane perpendicular to the rotation axis, and arranging at least one of right and left right corner points of the first square light-emitting chip 11 on the extension line of the edge at the upper end of the second square light-emitting chip 12;
mounting a first square light-emitting chip 11 and a second square light-emitting chip 12 on a light source mounting surface of a rotating bracket 2 through a circuit board;
starting a rotating motor 4, driving a rotating bracket 2 to swing around a rotating shaft 21 relative to a fixed bracket 3 through a cam 6 according to a set frequency, and emitting light rays emitted by a first square light-emitting chip 11 and a second square light-emitting chip 12 through a lens 8 to form a low beam shape;
when the first square light-emitting chip 11 is a multi-chip light-emitting chip, switching of high-beam and low-beam lighting is realized by controlling the on-off of a light-emitting chip at the upper end of the first square light-emitting chip 11;
The rotation frequency of the cam 6 is detected by the rotation speed sensor 7 to ensure that the swing frequency of the rotating bracket 2 is greater than the frequency recognizable by human eyes.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple variants are possible, comprising the combination of the individual specific technical features in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (10)
1. A method for forming an emergent light shape of a car lamp lighting module is disclosed, wherein a light source (1) of the car lamp lighting module at least comprises a first square light-emitting chip (11); wherein, the forming method comprises the following steps:
firstly, the first square luminous chip (11) is arranged in a direction that one edge or an edge extension line of the first square luminous chip (11) and a plane vertical to a rotation axis intersect at a set angle;
secondly, the light source (1) is driven to swing around the rotation axis according to a set frequency to form an emergent light shape;
The light source (1) further comprises a second square light-emitting chip (12) which is arranged side by side with the first square light-emitting chip (11), in the first step, at least one of left and right corner points of the first square light-emitting chip (11) is arranged on an extension line of an edge at the upper end of the second square light-emitting chip (12), and the edge at the upper end of the second square light-emitting chip (12) is parallel to a plane perpendicular to the rotation axis.
2. The method for forming an exit light shape of a vehicle lamp lighting module according to claim 1, wherein the set frequency is greater than 30 Hz.
3. The method for forming an exit light shape of a vehicular lamp illumination module according to claim 1, wherein the set angle is not less than 15 ° and less than 90 °.
4. The method for forming an exit light shape of a vehicular lamp lighting module according to claim 3, wherein the set angle is 15 ° or 45 °.
5. The method for forming the emergent light shape of the car lamp lighting module according to claim 1, wherein the method further comprises a third step, the first square light emitting chip (11) is a multi-chip light emitting chip, and comprises a low beam light emitting chip for forming a low beam and a high beam light emitting chip for forming a high beam, and the switching of the high beam and the low beam illumination is realized by controlling the on-off of the high beam light emitting chip.
6. The method for forming the exit light shape of the car light illumination module according to any one of claims 1 to 5, wherein in the second step, the light source (1) is driven to swing at a set frequency by a rotating motor (4).
7. The forming method of the exit light shape of the car light illumination module according to claim 6, wherein the car light illumination module further comprises a rotating bracket (2) for mounting the light source (1) and a fixed bracket (3) connected with a rotating shaft (21) of the rotating bracket (2); in the second step, the rotating motor (4) drives the light source (1) to swing around the rotating shaft (21) according to a set frequency through the rotating bracket (2).
8. The method for forming the emergent light shape of the car lamp lighting module according to claim 7, wherein a torsion spring (52) is connected between the rotating bracket (2) and the fixed bracket (3), and a cam (6) is connected between the rotating bracket (2) and the rotating motor (4); in the second step, the rotating motor (4) pushes the rotating bracket (2) to rotate around the rotating shaft (21) through the cam (6), then the rotating bracket (2) rotates under the restoring force of the torsion spring (52), and the process is repeated, so that the light source (1) swings according to the set frequency along with the rotating bracket (2).
9. The method for forming the emergent light shape of the car lamp lighting module according to claim 8, wherein a rotation speed sensor (7) is arranged on the fixed bracket (3), and the rotation frequency of the cam (6) is detected by the rotation speed sensor (7) so as to ensure that the light source (1) swings at a set frequency.
10. The method for forming the exit light shape of the car lamp lighting module according to any one of claims 1 to 5, wherein the car lamp lighting module further comprises a lens (8), the light source (1) is located in a focal region of the lens (8), and in the second step, the light emitted by the light source (1) is projected through the lens (8) to form the exit light shape.
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| CN202110226630.0A CN112902107B (en) | 2021-03-01 | 2021-03-01 | Method for forming emergent light shape of car lamp lighting module |
| PCT/CN2021/118506 WO2022183711A1 (en) | 2021-03-01 | 2021-09-15 | Vehicle light module, vehicle, and method for forming light pattern of vehicle light illumination module |
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