CN214332570U - Automobile steering lamp with anti-surge LED module - Google Patents

Abstract

The application relates to an auto steering lamp with prevent surge LED module, it includes the lamp body and installs the lamp shade on the lamp body, be equipped with LED banks on the terminal surface of lamp body orientation lamp shade, LED banks links to each other with vehicle mounted power source, the louvre has still been seted up on the lamp body, the embedded fan that is equipped with of louvre, the air outlet orientation of fan deviates from the direction setting of lamp shade, the fan is connected with vehicle mounted power source through control circuit, a plurality of inlet ports have still been seted up on the lamp body. The application has the technical effects that: the possibility that the service life of the LED lamp group in the lampshade is reduced due to the fact that the LED lamp group is in a sultry environment for a long time is reduced, and the service life of the steering lamp is prolonged.

Description

Automobile steering lamp with anti-surge LED module

Technical Field

The application relates to the technical field of automobile steering lamps, in particular to an automobile steering lamp with an anti-surge LED module.

Background

The automobile steering lamp is a flashing indicator lamp which is turned on in the corresponding direction when the automobile turns, so as to remind pedestrians and vehicles in front of or behind the automobile of paying attention to the driving direction of the automobile; the LED automobile steering lamp takes the LED as a luminous source, and has the characteristics of no radiation, no pollution, long service life and the like.

The publication number CN211203932U discloses an automobile steering lamp structure, an automobile rearview mirror and an automobile, wherein the automobile steering lamp structure comprises a first light source, a second light source, a light guide lampshade and a lamp housing mounted on the automobile rearview mirror; the first light source, the second light source and the light guide lampshade are all arranged on the lamp shell; the light guide lampshade is arranged opposite to the first light source and the second light source.

The technical scheme has the following defects: the steering lamp is of a sealed structure, and heat generated in the driving process of the vehicle is difficult to dissipate after being transferred into the lampshade, so that the inside of the steering lamp is in a sultry environment, and the service life of the steering lamp is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve the life of auto steering lamp, the application provides an auto steering lamp with prevent surge LED module, adopts following technical scheme: the utility model provides an auto steering lamp with prevent surge LED module, includes the lamp body and installs the lamp shade on the lamp body, be equipped with LED banks on the terminal surface of lamp body orientation lamp shade, LED banks links to each other with vehicle mounted power source, the louvre has still been seted up on the lamp body, the embedded fan that is equipped with of louvre, the air outlet orientation of fan deviates from the direction setting of lamp shade, the fan is connected with vehicle mounted power source through control circuit, a plurality of inlet ports have still been seted up on the lamp body.

Through the technical scheme, when the temperature in the indicator is too high, the fan can be started to blow towards the outside of the lamp shell under the control of the control circuit, under the driving of the fan airflow, the external airflow can enter the space between the lamp shell and the lamp shade from the plurality of air inlets, and then the air is blown out from the heat dissipation holes along the fan, so that the effect of blowing and heat dissipation of the indicator is achieved, the possibility of service life reduction of an LED lamp group in the lamp shade due to long-time existence of a sultry environment is reduced, and the service life of the indicator is prolonged.

Optionally, an anti-surge circuit is connected between the LED lamp set and the vehicle power supply.

Through above-mentioned technical scheme, anti-surge circuit has the effect of anti-surge, has reduced LED banks in the twinkling of an eye with vehicle power switch-on, and the peak current that flows into LED banks leads to the possibility that LED banks trouble damaged to LED banks's life has further been promoted.

Optionally, a supporting block matched with the LED lamp set is arranged on the lamp housing, a fixing groove is formed in the end surface of the supporting block, which is away from the lamp housing, the LED lamp set is fixedly connected to the end surface of the supporting block, which is away from the lamp housing, and the opening of the fixing groove is sealed, and a plurality of ventilation holes communicated with the fixing groove are further uniformly formed in the side wall of the supporting block.

Through above-mentioned technical scheme, when the fan starts the air current that drives between lamp shade and the lamp body and flows, the air current can pass the fixed slot along a plurality of ventilation holes, has reached and has carried out radiating effect to the bottom of LED banks to the radiating effect of fan to LED banks has further been strengthened.

Optionally, a dustproof screen matched with the plurality of air inlets is arranged on the lamp housing, and the plurality of air inlets are sealed by the dustproof screen.

Through above-mentioned technical scheme, dustproof otter board has dirt-proof effect for in the mixed dust is difficult for entering into the indicator from a plurality of inlet openings in the external air current, thereby has promoted the dustproof effect of indicator.

Optionally, a reflector is arranged on the lamp housing, and a reflective powder layer is arranged on the end face of the reflector, which is far away from the lamp housing.

Through above-mentioned technical scheme, reflector panel and reflection of light bisque all have the effect of reflection of light for the light that LED banks sent can be assembled the lamp shade direction under the effect of reflector panel and reflection of light bisque, thereby has further improved the luminance of indicator.

Optionally, the control circuit includes: the temperature sensor is arranged on the end face, facing the lampshade, of the lamp shell and outputs a temperature sensing signal at the output end of the temperature sensor; the comparison circuit is connected to the output end of the temperature sensor, compares the received temperature sensing signal with a reference signal and outputs a control signal; and the switch circuit is connected to the output end of the comparison circuit and used for responding to the control signal and controlling the on-off between the fan and the vehicle-mounted power supply.

Through above-mentioned technical scheme, when the temperature between lamp body and the lamp shade is higher than predetermined standard value, comparison circuit can output control signal to switch circuit, and switch circuit can synchronous control vehicle mounted power and fan intercommunication after receiving control signal, and the drive fan starts and dispels the heat to the indicator to reached automatically carry out radiating effect to the indicator when the temperature is unusual.

Optionally, the comparison circuit includes: a reference circuit having a resistor R1 and a resistor R2 connected in series, wherein the other end of the resistor R1 is connected to a power supply VCC _1, the other end of the resistor R2 is grounded, and the reference signal is generated between the resistor R1 and the resistor R2; the comparator A is provided with a non-inverting input end, an inverting input end and an output end, the non-inverting input end is connected to the output end of the temperature sensor, the inverting input end is connected between the first resistor R1 and the second resistor R2, and the output end outputs the control signal.

Through the technical scheme, when the temperature detected by the temperature sensor reaches a certain value, and the voltage value corresponding to the temperature sensing signal is higher than the voltage value of the reference signal, the comparator A can output a high-level control signal.

Optionally, the switching circuit includes: an NPN triode Q1, the emitter of which is grounded, the base of which is connected with the output end of the comparator A through a resistor R3 and is grounded with the emitter through a resistor R4; a first end of a coil of the normally open relay KM1 is connected to a power supply VCC _2, a second end of the coil is connected to a collector of an NPN triode Q1, and a normally open contact switch S1 of the normally open relay KM1 is connected between the fan and a vehicle-mounted power supply in series; a diode D1 has a cathode connected to a first end of the coil of the normally closed relay KM1 and an anode connected to a second end of the coil of the normally closed relay KM 1.

Through above-mentioned technical scheme, when receiving the high level signal of comparator A output, NPN triode Q1 can switch on, and normally closed relay KM 1' S coil has got the electricity and makes normally open contact switch S1 closed this moment, and vehicle mounted power makes the fan start with the fan intercommunication to the fan can cool down the indicator fast.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fan accelerates the heat dissipation efficiency in the steering lamp, reduces the possibility that the service life of the LED lamp group in the lampshade is reduced due to the fact that the LED lamp group is in a sultry environment for a long time, and prolongs the service life of the steering lamp;

2. the dustproof screen plate has a dustproof effect, and the possibility that external dust enters the steering lamp is reduced, so that the dustproof performance of the steering lamp is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an exploded view of an embodiment of the present application for embodying a support block.

Fig. 3 is a block diagram of a structure for embodying a vehicle-mounted power supply according to an embodiment of the present application.

Fig. 4 is a circuit diagram for embodying a control circuit according to an embodiment of the present application.

Reference numerals: 1. a lamp housing; 2. a lamp shade; 3. an LED lamp group; 4. a vehicle-mounted power supply; 5. heat dissipation holes; 6. a fan; 7. a control circuit; 8. an air inlet; 9. an anti-surge circuit; 10. a support block; 11. fixing grooves; 12. a vent hole; 13. a dustproof screen plate; 14. a reflector; 15. a light-reflecting powder layer; 16. a temperature sensor; 17. a comparison circuit; 18. a switching circuit; 19. a reference circuit.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses auto steering lamp with prevent surge LED module.

As shown in fig. 1 and 2, the steering lamp with the anti-surge LED module for the automobile comprises a lamp housing 1 and a lampshade 2 installed outside the lamp housing 1, wherein an end surface of the lamp housing 1 facing the lampshade 2 is connected with an LED lamp group 3, an end surface of the lamp housing 1 facing the lampshade 2 is bonded with a reflector 14, and an end surface of the reflector 14 facing away from the lamp housing 1 is coated with a reflector layer 15; the reflector 14 and the reflector layer 15 have the function of converging light rays, so that the light rays in the lamp shell 1 can be reflected and converged to the direction of the lampshade 2, and the lighting effect of the steering lamp is improved; the reflector 14 is fixedly connected with a supporting block 10, a fixing groove 11 matched with the LED lamp group 3 is formed in the end face, away from the lamp shell 1, of the supporting block 10, the LED lamp group 3 is bonded on the supporting block 10 and seals the fixing groove 11, and a plurality of ventilation holes 12 communicated with the fixing groove 11 are further uniformly formed in the side wall of the supporting block 10; set up louvre 5 that runs through reflector panel 14 simultaneously on the lamp body 1, the louvre 5 is embedded to be equipped with fan 6, and fan 6 is located lamp body 1 and the air outlet orientation deviates from the direction setting of lamp shade 2, still sets up a plurality of inlet ports 8 that run through reflector panel 14 simultaneously along the periphery on the lamp body 1.

As shown in fig. 2 and 3, the LED lamp set 3 is communicated with the vehicle-mounted power supply 4 through the anti-surge circuit 9, and the anti-surge circuit 9 has an effect of suppressing surge to protect the LED lamp set 3, so that the possibility that the LED lamp set 3 is damaged by peak current generated at the moment of power-on is reduced, and the service life of the LED lamp set 3 is further prolonged; fan 6 is linked together through control circuit 7 and vehicle mounted power 4, under control circuit 7's control, fan 6 can start when the inside temperature of lamp shade 2 is unusual, then under fan 6's effect, external air current can enter into between lamp shade 2 and the lamp body 1 along a plurality of inlet ports 8, the partial air current that enters into between lamp shade 2 and the lamp body 1 can wear to establish fixed slot 11 along a plurality of ventilation holes 12, partial air current can flow through from the surface of LED banks 3, then blow off from 5 departments of louvre in unison, so that the heat around the LED banks 3 can spill lamp shade 2 under the drive of air current fast, the effect of cooling of blowing has been reached to LED banks 3, the LED banks 3 in the lamp shade 2 have been reduced because be in sultry environment for a long time and the possibility of life-span reduction, thereby the life of indicator has been promoted.

As shown in fig. 2, a dust-proof screen 13 matched with the plurality of air inlets 8 is further bonded on the end surface of the lamp housing 1 facing the lamp shade 2, and the openings of the plurality of air inlets 8 facing the lamp shade 2 are all sealed by the dust-proof screen 13. Therefore, when the external air flow enters the space between the lamp shell 1 and the lamp shade 2 through the air inlet hole 8, the dustproof screen 13 can filter the air flow, so that the dust or impurities mixed in the air flow are difficult to enter the space between the lamp shell 1 and the lamp shade 2, and the dustproof effect inside the turn light is improved.

As shown in fig. 2 and 4, the control circuit 7 includes: the temperature sensor 16 is bonded on the end face, facing the lampshade 2, of the lamp shell 1 and outputs a temperature sensing signal at the output end of the temperature sensor;

a comparison circuit 17 connected to an output end of the temperature sensor 16, comparing the received temperature sensing signal with a reference signal and outputting a control signal;

and the switch circuit 18 is connected to the output end of the comparison circuit 17 and used for responding to the control signal and controlling the on-off between the fan 6 and the vehicle-mounted power supply 4.

The comparison circuit 17 specifically includes:

a reference circuit 19 having a resistor R1 and a resistor R2 connected in series, wherein the other end of the resistor R1 is connected to a power supply VCC _1, the other end of the resistor R2 is grounded, and the reference signal is generated between the resistor R1 and the resistor R2; the temperature value corresponding to the reference signal can be preset by adjusting the resistances of the resistor R1 and the resistor R2 according to actual needs, for example, the standard temperature value is adjusted to 50 ℃.

The comparator A is provided with a non-inverting input end, an inverting input end and an output end, the non-inverting input end is connected with the output end of the temperature sensor 16, the inverting input end is connected between the first resistor R1 and the second resistor R2, and the output end outputs a control signal; based on the above example, when the temperature sensor 16 detects a temperature greater than 50 ℃, the voltage of the non-inverting input terminal is greater than the voltage of the inverting input terminal, so that the output terminal of the comparator a will output a high-level control signal.

The switching circuit 18 specifically includes: an NPN triode Q1, the emitter of which is grounded, the base of which is connected with the output end of the comparator A through a resistor R3 and is grounded with the emitter through a resistor R4; the output end of the comparator A outputs a high level signal to enable the NPN triode Q1 to be conducted;

a normally open relay KM1, a first end of a coil of which is connected to a power supply VCC _2, a second end of the coil of which is connected to a collector of an NPN triode Q1, and a normally open contact switch S1 of which is connected in series between the fan 6 and the vehicle-mounted power supply 4; when the NPN triode Q1 switches on, the coil of the normally open relay is electrified, so that the normally open contact S1 is closed, then the vehicle-mounted power supply 4 is communicated with the fan 6, and the fan 6 is started to radiate the steering lamp.

A diode D1 has a cathode connected to a first end of the coil of the normally closed relay KM1 and an anode connected to a second end of the coil of the normally closed relay KM 1.

The working principle of the power control circuit 7 in this embodiment is as follows: temperature sensor 16 can carry out real-time detection to the inside temperature of indicator, when the inside temperature of indicator reached predetermined standard temperature value, comparator A can export the control signal of high level and make NPN triode Q1 switch on, then normally open relay KM1 'S coil gets electric, make normally open relay KM 1' S normally open contact switch S1 closed, vehicle power supply 4 and fan 6 intercommunication then, the fan 6 gets to start after the electricity and dispels the heat to indicator inside, reduce to under the standard temperature until the inside temperature of indicator.

The implementation principle of the embodiment of the application is as follows: in-process that the car went, when the inside temperature sensor 16 of indicator detected the lamp shade 2 inside temperature and be greater than when predetermineeing the temperature, fan 6 can start with on-vehicle power supply 4 intercommunication under control circuit 7's effect, this moment under fan 6's effect, external air current can pass dustproof otter board 13 from a plurality of inlet ports 8 and enter into lamp shade 2 in, blow off along louvre 5 then, so that the lamp shade 2 inside heat can spill lamp shade 2 fast, the LED banks 3 that have reduced lamp shade 2 inside have promoted the life of indicator owing to be in sultry environment for a long time and the possibility of life-span reduction.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an auto steering lamp with prevent surge LED module, includes lamp body (1) and installs lamp shade (2) on lamp body (1), its characterized in that: be equipped with LED banks (3) on the terminal surface of lamp body (1) orientation lamp shade (2), LED banks (3) link to each other with vehicle mounted power (4), louvre (5) have still been seted up on lamp body (1), louvre (5) embedded fan (6) of being equipped with, the air outlet orientation of fan (6) deviates from the direction setting of lamp shade (2), fan (6) are connected with vehicle mounted power (4) through control circuit (7), a plurality of inlet ports (8) have still been seted up on lamp body (1).

2. The automobile steering lamp with the anti-surge LED module according to claim 1, characterized in that: and an anti-surge circuit (9) is connected between the LED lamp bank (3) and the vehicle-mounted power supply (4).

3. The automobile steering lamp with the anti-surge LED module according to claim 1, characterized in that: the LED lamp is characterized in that a supporting block (10) matched with the LED lamp group (3) is arranged on the lamp shell (1), a fixing groove (11) is formed in the end face, deviating from the lamp shell (1), of the supporting block (10), the LED lamp group (3) is fixedly connected to the end face, deviating from the lamp shell (1), of the supporting block (10) and seals an opening of the fixing groove (11), and a plurality of ventilation holes (12) communicated with the fixing groove (11) are further uniformly formed in the side wall of the supporting block (10).

4. The automobile steering lamp with the anti-surge LED module according to claim 1, characterized in that: the lamp shell (1) is provided with a dustproof screen (13) matched with the plurality of air inlets (8), and the plurality of air inlets (8) are sealed by the dustproof screen (13).

5. The automobile steering lamp with the anti-surge LED module according to claim 1, characterized in that: the lamp shell (1) is provided with a reflecting plate (14), and a reflecting powder layer (15) is arranged on the end face, deviating from the lamp shell (1), of the reflecting plate (14).

6. The automotive turn signal lamp with the anti-surge LED module set according to claim 1, characterized in that the control circuit (7) comprises:

the temperature sensor (16) is arranged on the end face, facing the lampshade (2), of the lamp shell (1), and outputs a temperature sensing signal at the output end of the temperature sensor;

a comparison circuit (17) connected to an output end of the temperature sensor (16), comparing the received temperature sensing signal with a reference signal and outputting a control signal;

and the switch circuit (18) is connected to the output end of the comparison circuit (17) and used for responding to the control signal and controlling the on-off between the fan (6) and the vehicle-mounted power supply (4).

7. The automobile steering lamp with the anti-surge LED module according to claim 6, wherein the comparison circuit (17) comprises:

a reference circuit (19) having a resistor R1 and a resistor R2 connected in series, wherein the other end of the resistor R1 is connected to a power supply VCC _1, the other end of the resistor R2 is grounded, and the reference signal is generated between the resistor R1 and the resistor R2;

the comparator A is provided with a non-inverting input end, an inverting input end and an output end, the non-inverting input end is connected to the output end of the temperature sensor (16), the inverting input end is connected between the first resistor R1 and the second resistor R2, and the output end outputs the control signal.

8. The automotive turn signal lamp with the anti-surge LED module according to claim 6, characterized in that the switching circuit (18) comprises:

an NPN triode Q1, the emitter of which is grounded, the base of which is connected with the output end of the comparator A through a resistor R3 and is grounded with the emitter through a resistor R4;

a first end of a coil of the normally open relay KM1 is connected to a power supply VCC _2, a second end of the coil is connected to a collector of an NPN triode Q1, and a normally open contact switch S1 of the normally open relay KM1 is connected in series between the fan (6) and the vehicle-mounted power supply (4);

a diode D1 has a cathode connected to a first end of the coil of the normally closed relay KM1 and an anode connected to a second end of the coil of the normally closed relay KM 1.

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