CN210568131U

CN210568131U - Lighting module

Info

Publication number: CN210568131U
Application number: CN201922130165.1U
Authority: CN
Inventors: 戈斌; 张韬; 朱明华; 郭田忠
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-05-19
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to a lighting module, include: fixing a bracket; the lighting assembly is arranged on the fixed bracket; the light detection and measurement assembly is arranged on the fixed support around the circumferential direction of the illumination assembly and can detect the position of a surrounding object by emitting a detection signal. In the lighting module of the utility model, the light detection and measurement component is arranged on the fixed bracket around the circumferential direction of the lighting component, and the circumferential space of the lighting component is fully utilized; the lighting assembly and the light detection and measurement assembly are jointly integrated and mounted on the fixed support, the arrangement is compact, the overall miniaturization design of the equipment is facilitated, excessive space is not occupied after the lighting assembly and the light detection and measurement assembly are mounted at the position of a lamp in the front of a vehicle head, the wiring is neat and orderly, and the later maintenance and overhaul are facilitated; because the light detection and measurement assembly is arranged inside the car lamp and protected, the whole appearance of the car is not influenced, and the light detection and measurement assembly is arranged inside the car lamp and cannot be polluted by dust, so that the cleaning system of the car lamp can be shared.

Description

Lighting module

Technical Field

The utility model relates to a vehicle lighting apparatus field especially relates to lighting module.

Background

With the advent of the intelligent era, intelligent driving technology has been increasingly studied. In order to assist driving, it is necessary to mount a position detection device on the vehicle for detecting and knowing a positional relationship between the vehicle and a surrounding object, such as a radar. The position detection device mostly directly feeds back the distance parameter between the detected object and the vehicle to assist driving, so as to avoid the occurrence of collision accidents.

In actual installation, a position detection device such as a laser radar is usually installed on the roof or the bumper of a vehicle, and there are also solutions for directly installing the laser radar inside a vehicle lamp, but these solutions have certain problems: the automobile is mounted on the roof, so that the appearance of the automobile is not attractive, and a close-range blind area near the automobile is large; the installation at the bumper position additionally increases the number of wiring harnesses near the engine compartment and requires an additional configuration of a washing system. In addition, the radar can be directly installed in the lamp, however, the size of the lamp is increased, the space of the head of the lamp is very limited, and how to install the radar more reasonably is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a lighting module for solving the problems of complicated arrangement and large occupied space of the position detection device installed in front of the vehicle.

A lighting module, comprising:

fixing a bracket;

the lighting assembly is arranged on the fixed bracket;

the light detection and measurement assembly is arranged on the fixed support around the circumferential direction of the illumination assembly and can detect the orientation of a surrounding object by emitting a detection signal.

The lighting module at least has the following beneficial technical effects:

the light detection and measurement assembly is arranged on the fixed support around the circumference of the illumination assembly, and the circumferential space of the illumination assembly is fully utilized; the lighting assembly and the light detection and measurement assembly are integrated together and mounted on the fixed support, the arrangement is compact, the overall miniaturization design of the equipment is facilitated, and the lighting assembly and the light detection and measurement assembly cannot occupy too much space after being mounted on the position of a vehicle lamp in the front of a vehicle head.

The utility model discloses a lighting assembly and light detection and measuring component constitute the illumination module group jointly and install behind car light installation position, are favorable to expanding detection angle scope and reducing and detect the blind area, and the signal transmission line of both can be binded together and form the pencil, need not reserve the space alone at locomotive department and be used for settling the signal transmission line of light detection and measuring component, has saved the space, and the wiring is neat and orderly, is convenient for later maintenance and maintenance;

the light detection and measurement component is arranged in the car lamp and protected, so that the overall appearance of the car is not influenced, the light detection and measurement component is arranged in the car lamp and cannot be polluted by dust, a cleaning system of the car lamp can be shared, and the manufacturing cost is saved;

the light source variety that traditional car light adopted is many, fuses the design back with the car light of light detection and measuring component and all kinds of light sources, can provide the various car light products that have complex function, is favorable to marketing. And after the car light has the laser radar detection function, the car light is more suitable for being used by unmanned vehicles, and in the future unmanned era, the laser radar can provide important road information for the automatic driving vehicles in a 3D point cloud mode.

In one embodiment, the light detection and measurement assembly comprises a plurality of emission components mounted on the fixed support in a circumferentially distributed manner around the illumination assembly.

In one embodiment, the transmitting means comprises:

the transmitting unit is embedded into the mounting through hole formed in the fixed support from the back;

and the driving unit is connected with the transmitting unit through a transfer board and used for driving the transmitting unit to transmit the detection signal.

In one embodiment, the light detection and measurement assembly further comprises:

the receiving component is embedded on the fixed support in parallel with the transmitting component and is used for receiving the detection signal transmitted by the transmitting component;

the signal processing mainboard is arranged on the back face of the fixed support, is in communication connection with the transmitting component so as to drive the transmitting component to send a detection signal, and is in communication connection with the receiving component so as to process a reflection signal received by the receiving component.

In one embodiment, the fixing bracket further includes a first heat dissipation structure, and the first heat dissipation structure includes:

the heat dissipation parting beads are distributed on the side edges of the fixed bracket;

the first cooling fan unit is arranged on the side edge of the fixed support, and the air outlet surface of the first cooling fan unit faces the cooling division bar.

In one embodiment, the fixing bracket further includes a second heat dissipation structure, and the second heat dissipation structure includes:

the heat dissipation through hole is arranged on the fixed bracket;

and the second cooling fan unit is arranged on the back surface of the fixed support, and the air outlet surface of the second cooling fan unit faces the cooling through hole.

In one embodiment, the heat dissipation through hole is formed by splicing two heat dissipation blocks, and the two heat dissipation blocks are provided with heat dissipation plate groups with symmetrical structures on the opposite sides of each heat dissipation block, so that the heat dissipation through hole is formed between every two adjacent heat dissipation plates after the two heat dissipation blocks are spliced.

In one embodiment, the lighting assembly comprises:

a light emitting unit for emitting illumination light;

the light condensing unit is arranged on one side of the light emitting unit and used for condensing illumination light to form an illumination light beam and transmitting the illumination light beam from the back surface of the illumination module to the front surface of the illumination module;

and the lens unit is arranged on the transmission path of the illumination light beam and is used for enabling the illumination light beam to form light rays which are emitted outwards at a certain angle.

In one embodiment, the light condensing unit is a reflector disposed on a side of the light emitting unit opposite to the lens unit.

In one embodiment, the light detection and measurement assembly is any one of a flood area array lidar, a MEMS scanning lidar, a galvanometer scanning lidar and an OPA optical phased array lidar.

Drawings

Fig. 1 is a three-dimensional structure diagram of an illumination module according to an embodiment of the present invention;

FIG. 2 is a front view of the lighting module of FIG. 1;

fig. 3 is an exploded view of the lighting module of fig. 1.

In the figure, 10, a fixing bracket, 11, a mounting through hole, 12, a first heat dissipation structure, 121, a heat dissipation division bar, 122, a first heat dissipation fan unit, 13, a second heat dissipation structure, 130, a heat dissipation through hole, 131, a heat dissipation block, 1311, a heat dissipation fin group, 132, a second heat dissipation fan unit,

20. an illumination assembly, 21, a light emitting unit, 22, a light condensing unit, 221, a reflector, 23, a lens unit,

31. a transmitting component 311, a transmitting unit 312, an adapter plate 313, an electric connecting wire,

32. the receiving means is arranged to receive the data,

33. and a signal processing mainboard.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Those of ordinary skill in the art will recognize that variations and modifications of the various embodiments described herein can be made without departing from the scope of the invention, which is defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, in an embodiment of the present invention, a lighting module is provided, including: a fixed support 10, an illumination assembly 20 and a light detection and measurement assembly. The lighting assembly 20 is disposed on the fixing bracket 10. The optical detection and measurement assembly is mounted on the fixing bracket 10 around the circumference of the illumination assembly 20, and can detect the position of a surrounding object by emitting a detection signal.

The light detection and measurement assembly is arranged on the fixed support 10 around the circumference of the lighting assembly 20, and the space around the circumference of the lighting assembly 20 is fully utilized; the lighting assembly 20 and the light detection and measurement assembly are integrated together and mounted on the fixed support 10, the arrangement is compact, the overall miniaturization design of the equipment is facilitated, and the lighting assembly and the measurement assembly cannot occupy too much space after being mounted on the position of a vehicle lamp in the front of a vehicle head.

The utility model discloses a lighting assembly 20 and light detection and measuring component constitute the illumination module group jointly and install behind car light installation position, are favorable to expanding detection angle scope and reducing the detection blind area, and the signal transmission line of both can be binded together and form the pencil, need not reserve the space alone at locomotive department and be used for settling the signal transmission line of light detection and measuring component, saved the space, the wiring is neat and orderly, the later maintenance of being convenient for and overhauls;

the light detection and measurement component is arranged in the car lamp and protected, so that the overall appearance of the car is not influenced, the light detection and measurement component is arranged in the car lamp and cannot be polluted by dust, and a cleaning system of the car lamp can be shared;

Referring to fig. 2 and 3, in some embodiments, the light detection and measurement assembly includes a plurality of emission members 31, and the plurality of emission members 31 are disposed on the fixing bracket 10 around the circumference of the illumination assembly 20.

Specifically, the detection signal (e.g., infrared laser) emitted from the emitting component 31 may be reflected by the surface of the object when encountering the object, and after the reflected signal is received by the receiving module installed at the front portion of the vehicle body, such as the vehicle head, the vehicle console may determine the direction of the object relative to the optical detection and measurement assembly based on the incident angle of the reflected signal received by the receiving module, and may calculate the distance between the object and the optical detection and measurement assembly according to the time interval between the reception of the reflected signal and the emission of the detection signal. The above description is a method for obtaining the orientation of the surrounding object by utilizing the principle of light reflection, and certainly, in some other embodiments, the orientation of the surrounding object can also be obtained by detecting other parameters fed back by detecting the detection signal, which is within the protection scope of the present invention.

The simultaneous emission of signals by a plurality of said emission members 31 may enhance the strength of the detection signal; the plurality of emission parts 31 are distributed around the circumference of the lighting assembly 20, so that compared with the emission parts arranged on one side of the lighting assembly 20, the circumferential space of the lighting assembly 20 is fully utilized, and the arrangement space is saved; the lighting assembly 20 is arranged in the middle, when the fixing bracket 10 is fixed at the front part of the vehicle head in the mode illustrated in fig. 1, the position of the lighting assembly 20 is not too high or too low, and the lighting beam emitted to the front of the vehicle is easy to obtain a proper lighting effect.

Referring to fig. 3, in some embodiments, the transmitting section 31 includes:

a transmitting unit 311 which is fitted into the mounting through hole 11 provided in the fixing bracket 10 from the rear surface;

and a driving unit (not shown in the figure) connected to the transmitting unit 311 through the adapter plate 312, for driving the transmitting unit 311 to transmit the detection signal.

When in use, the driving unit may be connected to a vehicle console, and a control signal is input through the vehicle console, so as to control the driving unit to drive the transmitting unit 311 to transmit the detection signal. In this embodiment, a positioning support structure does not need to be separately provided on the fixing bracket 10, the emitting unit 311 is directly embedded into the mounting through hole 11 provided on the fixing bracket 10, the space of the fixing bracket 10 itself is fully utilized, and the emitting component 31 and the lighting assembly 20 are compactly arranged; the driving unit is arranged on the PCB adapter plate 312, the PCB adapter plate 312 is electrically connected with the transmitting unit 311, and all units are not required to be connected through connecting wires, so that the structure is simpler, and the whole miniaturization and intensive design of the equipment is facilitated.

Preferably, the drive unit is connected to a power source via an electrical connection line 313. The transmitting unit 311 and the driving unit are directly powered by a power supply, a plurality of electric connecting wires 313 can be bound together to form a wire harness, wiring is neat and orderly, and later maintenance and overhaul are facilitated.

Referring to fig. 2 and 3, in some embodiments, the detection assembly further comprises:

a receiving part 32, which is embedded in the fixing bracket 10 in parallel with the transmitting part 31, and is used for receiving the detection signal transmitted by the transmitting part 31;

the signal processing main board 33 is disposed on the back surface of the fixing bracket 10, the signal processing main board 33 is in communication connection with the transmitting component 31 so as to drive the transmitting component 31 to send a detection signal, and the signal processing main board 33 is in communication connection with the receiving component 32 so as to process a reflection signal received by the receiving component 32.

The signal processing main board 33 can drive the emitting component 31 to send a detection signal, the detection signal is reflected after contacting with surrounding objects, the reflection signal is received by the receiving component 32 and then transmitted to the signal processing main board 33, and the signal processing main board 33 performs data processing on the reflection signal. In this embodiment, the space of the fixing bracket 10 itself is further utilized, and the receiving component 32, the signal processing main board 33, and the transmitting component 31 are integrally mounted on the fixing bracket 10 together, so that the arrangement is more compact, and the miniaturization of the device manufacturing is facilitated.

Of course, in some other embodiments, the receiving unit 32 is disposed separately from the transmitting unit 31 and is disposed at other positions on the head of the vehicle, and the signal processing main board 33 may be disposed on a console of the vehicle, which is not limited herein.

Referring to fig. 3, in some embodiments, the transmitting unit 311 of the transmitting component 31 is an infrared laser and the receiving component 32 is an infrared receiver. The infrared laser emits infrared laser as a detection signal, so that infrared area array detection can be realized, and the infrared receiver performs detection work by receiving reflected light of the infrared area array laser, so that flash LiDAR (floodlight area array laser radar) is formed. The infrared laser emitted by the infrared laser can be a spaced light pulse or a continuous wave. When the light pulse is emitted, the pulse width of the pulse can be specially modulated, and the mutual interference among the devices can be avoided under the condition that a plurality of devices run simultaneously.

The infrared laser emits various infrared laser wavelengths, preferably 905nm, 940nm or 1550nm, and tests show that the infrared laser with the wavelength of 905nm and 940nm is positioned at the weak part of energy distribution of each wavelength of sunlight, so that the signal-to-noise ratio of the system can be increased; the 1550nm is used for the advantages that the 1550nm is located in a part with weaker sunlight wavelength energy distribution, the 1550nm is safer for human eyes, the power output of an emitting end can be further improved, and a longer detection distance is achieved.

The infrared laser here may be an edge emitting device (EEL) or a vertical cavity surface emitting device (VCSEL).

It is understood that in other embodiments, the optical detection and measurement assembly may also employ other radar technologies such as MEMS scanning lidar, mechanical galvanometer scanning lidar, OPA optical phased array lidar, and the like, without limitation.

The utility model discloses set up lighting assembly 20 and the closely integration of light detection and measuring component behind fixed bolster 10, can produce some heats when the power is too big in the working process, consequently, refer to fig. 1-3, in some embodiments, fixed bolster 10 still includes first heat radiation structure 12, first heat radiation structure 12 includes:

the heat dissipation parting beads 121 are distributed on the side edges of the fixed support 10;

the first cooling fan unit 122 is disposed at a side of the fixing bracket 10, and an air outlet surface of the first cooling fan unit 122 faces the cooling partition bar 121.

The heat dissipation division bars 121 distributed on the side edges of the fixing support 10 have a large heat dissipation surface area, heat generated by the lighting assembly 20 and the optical detection and measurement assembly is conducted to the heat dissipation division bars 121 through the fixing support 10 and is dissipated outwards, air flow blown out when the first cooling fan unit 122 operates can accelerate air flow, and dissipation of heat near the heat dissipation division bars 121 can be promoted when the air flow flows through the heat dissipation division bars 121, so that the heat generated by the lighting assembly 20 and the optical detection and measurement assembly can be dissipated as soon as possible under the contact heat conduction of the fixing support 10 and the dissipation effect of the air flow, the heat dissipation efficiency is high, the heat dissipation effect is good, the temperature of the lighting module can be timely lowered, and the service life of the device is prolonged.

In other embodiments, the fixing bracket 10 further includes a second heat dissipation structure 13, and the second heat dissipation structure 13 includes:

the heat dissipation through hole 130 is arranged on the fixed bracket 10;

the second cooling fan unit 132 is disposed on the back surface of the fixing bracket 10, and an air outlet surface of the second cooling fan unit 132 faces the cooling through hole 130.

The heat dissipation through hole 130 formed in the surface of the fixing support 10 has a large inner surface area, heat generated by the illumination assembly 20 and the optical detection and measurement assembly is conducted to the inner surface of the heat dissipation through hole 130 through the fixing support 10, air flow is accelerated by blowing air flow when the second cooling fan unit 132 operates, and the heat dissipation of the inner surface of the heat dissipation through hole 130 can be promoted when the air flow flows through the heat dissipation through hole 130, so that the heat generated by the illumination assembly 20 and the optical detection and measurement assembly can be dissipated as soon as possible under the contact heat conduction and the air flow dissipation effects of the heat dissipation through hole 130, the heat dissipation effect is good, the temperature of the illumination module can be timely lowered, and the service life of the device is prolonged.

Preferably, referring to fig. 3, the heat dissipating through hole 130 may be formed by splicing two heat dissipating blocks 131, specifically, a symmetrical heat dissipating fin set 1311 is disposed on one side of the two heat dissipating blocks 131 opposite to each other, the heat dissipating fin set 1311 includes a plurality of heat dissipating fins, the heat dissipating fins on the two heat dissipating blocks 131 are butted to form the heat dissipating through hole 130 between every two adjacent heat dissipating fins, and the two spliced heat dissipating blocks 131 are embedded into the fixing bracket 10 as a whole. In the embodiment, the heat dissipation through holes 130 are formed flexibly, and the splicing structure is convenient to disassemble and assemble; when dust is accumulated in the heat dissipation through hole 130, the two heat dissipation blocks 131 are separated, and then the dust between the parallel heat dissipation fins can be quickly cleaned, so that the equipment maintenance is facilitated.

Referring to fig. 3, in some embodiments, the illumination assembly 20 includes:

a light emitting unit 21 for emitting illumination light;

a light condensing unit 22 disposed at one side of the light emitting unit 21, for condensing the illumination light to form an illumination beam and transmitting the illumination beam from the back surface of the illumination module to the front surface of the illumination module;

and the lens unit 23 is arranged on the transmission path of the illumination light beam and is used for enabling the illumination light beam to form light rays which are emitted outwards at a certain angle.

Specifically, the light condensing unit 22 may select the reflecting mirror 221, in this embodiment, the light emitting unit 21 emits illumination light, the illumination light is condensed by the light condensing unit 22 to form an illumination light beam, and the illumination light beam is adjusted by the lens unit 23 disposed on the transmission path of the illumination light beam and then emitted outward at a certain angle to provide illumination.

In this embodiment, the condensing unit 22 and the lens unit 23 converge the illumination light beams and adjust the illumination light beams, the illumination effect is controllable, the condensing unit 22 and the lens unit 23 with different shape parameters can be set according to different requirements, and the distance parameter between the condensing unit 22 and the lens unit 23 is set, so that the emitted illumination light beams have different effects, the light emitting effect is stable, the adaptability to different light emitting requirements is strong, the structure of the whole illumination module is simplified, and the use is convenient.

Preferably, the light-collecting unit 22 is a reflector 221 disposed on a side of the light-emitting unit 21 opposite to the lens unit 23, as shown in fig. 3. The reflecting mirror 221 may condense the illumination light to form an illumination beam and transmit the illumination beam from the rear surface of the illumination module to the front surface of the illumination module, and the illumination beam finally passes through the lens unit 23 and is emitted outward. The lens unit 23 can select a convex lens with a larger middle thickness, the convex lens can adjust a light path, and the illumination light beam can be emitted outwards in a certain light shape after being adjusted.

In other embodiments, the lighting assembly 20 may employ a LED lamp set, a halogen light source, an HID light source, a laser light source, etc., without limitation.

In some embodiments, the fixing bracket 10 is made of aluminum alloy, which has better heat dissipation capability and can further prolong the service life. Of course, in other embodiments, the fixing bracket 10 may be made of cast iron or the like, and is not limited herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A lighting module, comprising:

fixing a bracket;

the lighting assembly is arranged on the fixed bracket;

2. The lighting module of claim 1, wherein the light detection and measurement assembly comprises a plurality of emitting members mounted on the mounting bracket in a circumferentially distributed manner around the lighting assembly.

3. The lighting module of claim 2, wherein the emitting component comprises:

4. The lighting module of claim 3, wherein the light detection and measurement assembly further comprises:

5. The lighting module of claim 1, wherein the mounting bracket further comprises a first heat dissipating structure, the first heat dissipating structure comprising:

6. The lighting module of claim 1, wherein the mounting bracket further comprises a second heat dissipating structure, the second heat dissipating structure comprising:

the heat dissipation through hole is arranged on the fixed bracket;

7. The lighting module of claim 6, wherein the heat dissipating through hole is formed by splicing two heat dissipating blocks, and the two heat dissipating blocks are provided with a symmetrical heat dissipating fin group on the opposite sides of each heat dissipating block, so that the heat dissipating through hole is formed between every two adjacent heat dissipating fins after the two heat dissipating blocks are spliced.

8. The lighting module of claim 1, wherein the lighting assembly comprises:

a light emitting unit for emitting illumination light;

9. The lighting module of claim 8, wherein the light condensing unit is a reflector disposed on a side of the light emitting unit opposite to the lens unit.

10. The lighting module of claim 4, wherein the light detection and measurement assembly is any one of a flood area array lidar, a MEMS scanning lidar, a galvanometer scanning lidar, and an OPA optical phased array lidar.