CN208997987U

CN208997987U - A kind of automobile LED headlight

Info

Publication number: CN208997987U
Application number: CN201821567796.9U
Authority: CN
Inventors: 张新建; 王锡锋
Original assignee: Zhongshan Pinxiang Photoelectric Technology Co Ltd
Current assignee: Zhongshan Pinxiang Photoelectric Technology Co Ltd
Priority date: 2018-09-25
Filing date: 2018-09-25
Publication date: 2019-06-18
Anticipated expiration: 2028-09-25

Abstract

The utility model relates to lighting device for vehicle fields, in particular to a kind of automobile LED headlight includes that shell and setting are respectively arranged with LED lamp bead and thermistor on the intracorporal circuit board of shell, circuit board, circuit board is connected with drive control device, and the side of shell is plugged with light barrier component；The temperature of thermistor induction LED headlight of the utility model by setting on circuit boards, when causing the temperature of LED lamp bead to increase when the heat dissipation effect of fan damage or radiating shell is bad, the temperature signal that thermistor will test passes to drive control device, the operating current of LED lamp bead is controlled by drive control device, it avoids LED lamp bead from burning, extends the service life of LED headlamp；The light barrier component is plugged on shell from side and covers in the top of LED lamp bead, can block a part of veiling glare and play the role of optically focused, which is formed as one, and reduces the number of parts of LED headlamp, easy for installation, reduces cost.

Description

A kind of automobile LED headlight

Technical field

The utility model relates to lighting device for vehicle field, in particular to a kind of automobile LED headlight.

Background technique

Headlight for vehicles is generally divided into halogen lamp, LED light and xenon lamp etc., and has benefited from LED light with energy-saving efficiency height, longevity The features such as life is long, brightness is high, has been increasingly becoming the mainstream of automobile front；Automobile LED headlight currently on the market is deposited mostly It is insufficient in heat dissipation, it is easy the problem of burning LED lamp bead.

Utility model content

Used technical solution is to provide a kind of automobile LED headlight to the utility model in order to solve the above problem, including There are shell and setting to be respectively arranged with LED lamp bead and thermistor, the circuit on the intracorporal circuit board of shell, the circuit board Plate is connected with drive control device, and the side of the shell is plugged with light barrier component.

As a further improvement of the foregoing solution, the LED lamp bead sets up separately on the two sides of circuit front edge of board, temperature-sensitive electricity The rear end of circuit board is arranged in resistance.

As a further improvement of the foregoing solution, the shell is divided into the upper cover that can be laminated and lower cover, circuit board Region between upper cover and lower cover is set.

As a further improvement of the foregoing solution, the light barrier component includes symmetrically arranged two panels light barrier, gear Mating plate is covered in the top of LED lamp bead.

As a further improvement of the foregoing solution, one end of the shell is connected with cooling fin, the cooling fin and shell Integrally formed setting.

As a further improvement of the foregoing solution, fan and protective cover are disposed on the cooling fin.

As a further improvement of the foregoing solution, the card for being additionally provided with sleeve in the middle part of the shell and being socketed on sleeve Disk.

As a further improvement of the foregoing solution, one end of the shell is connected with cooling fin, and shell is located at chuck and dissipates Region between backing is provided with sealing ring.

The beneficial effects of the utility model are: firstly, thermistor sense of the utility model by setting on circuit boards The temperature for answering LED headlamp causes the temperature of LED lamp bead to increase when the heat dissipation effect of fan damage or radiating shell is bad When, the temperature signal that thermistor will test passes to drive control device, and the work of LED lamp bead is controlled by drive control device Electric current avoids LED lamp bead from burning, and extends the service life of LED headlamp；Secondly, the light barrier component of the utility model is from side Face is plugged on shell and covers in the top of LED lamp bead, can block a part of veiling glare and play the role of optically focused, this is light-blocking Piece component is formed as one, and reduces the number of parts of LED headlamp, easy for installation, reduces cost.

Detailed description of the invention

It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings Other design schemes and attached drawing:

Fig. 1 is the structural exploded view of the utility model automobile LED headlight；

Fig. 2 is the structural side view of the utility model automobile LED headlight.

Specific embodiment

It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection It encloses.

A kind of automobile LED headlight as shown in Figures 1 and 2 includes shell and is arranged in the intracorporal circuit board 3 of shell, The shell includes the upper cover 1 being laminated and lower cover 2, it should be noted that, will be electric after upper cover 1 and lower cover 2 are laminated Road plate 3 is immobilized in the shell, then is connected through a screw thread so that upper cover 1 and lower cover 2 are relatively fixed, it is preferable that the upper cover 1 is under Lid 2 is provided with the groove 15 for accommodating circuit board 3, and concrete operations can be, by circuit board 3 be accommodated in upper cover 1 or under In the groove 15 of lid 2, lower cover 2 and upper cover 1 are laminated again, make two sides of circuit board 3 with upper cover 1 and lower cover 2 It is in contact, improving radiating effect；LED lamp bead 4 is arranged on two sides of 3 front end of circuit board, it is preferable that the LED light Pearl 4 is set up separately on two side faces symmetrically, and the rear end of circuit board 3 is provided with thermistor 5, it should be noted that the shell On offer window 16 for accommodating LED lamp bead 4, be additionally provided with the semicircle ladder that can accommodate thermistor 5 in shell Hole, the circuit board 3 are also connected with drive control device 6, and the drive control device 6 is connect by power supply line 14 with circuit board 3, the drive Movement controller 6 is connect by plug with automobile power source, it should be noted that drive control device 6 described in the present embodiment can be with Include common programmable controller or single-chip microcontroller etc. on the market, can be believed according to the temperature that thermistor 5 detects Number to control the operating current of LED lamp bead 4, LED lamp bead 4 generates heat after shining, thermistor 5 detects the intracorporal temperature of shell simultaneously The temperature signal is sent to drive control device 6, drive control device 6 controls LED according to the temperature signal that thermistor 5 detects The operating current of lamp bead 4, specifically, drive control device 6 are provided with a temperature threshold value, in the temperature that thermistor 5 detects When degree is up to or over the critical value, drive control device 6 reduces the operating current of LED lamp bead 4, so that LED lamp bead 4 will not be because It is burnt for overheat.

The side of the shell is plugged with light barrier component 7, which has the open slot for insertion shell, The two sides of open slot are symmetrically arranged with light barrier, and light barrier component 7 is plugged on the side of shell, and the light barrier of two sides is located at LED The top of lamp bead 4, the purpose is to block a part of veiling glare and play the role of optically focused, it should be noted that the light barrier group Part 7 is connected through a screw thread the front end for being fixed on shell.

The rear end of the shell is provided with cooling fin 8, which is formed as one with shell, that is, upper cover 1 and lower cover 2 It is respectively connected with integrally formed cooling fin 8, it is preferable that the cooling fin 8 radially distributes outwardly from the rear end of shell, described to dissipate It is connected with fan 9 and protective cover 10 on backing 8 in turn, which, which is connected through a screw thread, is fixed on cooling fin 8 and is relatively distant from shell One end, can further promote the heat dissipation effect of LED lamp bead 4, the protective cover 10 by way of snapping with cooling fin 8 Connection, fan 9 are accommodated in protective cover 10, and the air inlet hole in rear end convex is provided on the protective cover 10.

The chuck 12 for being additionally provided with sleeve 11 in the middle part of the shell and being socketed on sleeve 11, the utility model automobile LED headlamp is fixedly mounted in automobile lamp housing by chuck 12, and the sleeve 11, which is connected through a screw thread, to be fixed on shell, institute It states region of the shell between chuck 12 and cooling fin 8 and is provided with sealing ring 13, the purpose is to guarantee the sealing of LED light installation Property.

It should be noted that above-mentioned all circuit boards 3 as described in the examples can be using conventional copper base or aluminium Substrate, and the outer surface of circuit board 3 is provided with one layer of insulating film, the upper cover 1 and lower cover 2 then can be using heat dissipation effects The good material of fruit, such as aluminium material.

More than, only the preferred embodiment of the utility model, the utility model are not limited to above embodiment, As long as its technical effect for reaching the utility model with identical means, all should belong to the protection scope of the utility model.

Claims

1. a kind of automobile LED headlight, which is characterized in that include shell and setting in the intracorporal circuit board of shell (3), the electricity LED lamp bead (4) and thermistor (5) are respectively arranged on road plate (3), circuit board (3) is connected with drive control device (6), described The side of shell is plugged with light barrier component (7).

2. a kind of automobile LED headlight according to claim 1, which is characterized in that the LED lamp bead (4) is set up separately in electricity On the two sides of road plate (3) front end, thermistor (5) is arranged in the rear end of circuit board (3).

3. a kind of automobile LED headlight according to claim 1, which is characterized in that the shell, which is divided into, mutually to press The upper cover (1) and lower cover (2) of conjunction, the region that circuit board (3) is arranged between upper cover (1) and lower cover (2).

4. a kind of automobile LED headlight according to claim 2, which is characterized in that the light barrier component (7) includes Symmetrically arranged two panels light barrier, light barrier cover the top in LED lamp bead (4).

5. a kind of automobile LED headlight according to claim 1, which is characterized in that one end of the shell is connected with scattered Backing (8), the cooling fin (8) and the integrally formed setting of shell.

6. a kind of automobile LED headlight according to claim 5, which is characterized in that set gradually on the cooling fin (8) There are fan (9) and protective cover (10).

7. a kind of automobile LED headlight according to claim 1, which is characterized in that be additionally provided in the middle part of the shell Sleeve (11) and the chuck (12) being socketed on sleeve (11).

8. a kind of automobile LED headlight according to claim 7, which is characterized in that one end of the shell is connected with scattered Backing (8), the region that shell is located between chuck (12) and cooling fin (8) are provided with sealing ring (13).