CN205278940U

CN205278940U - LED car lamp and car

Info

Publication number: CN205278940U
Application number: CN201521127449.0U
Authority: CN
Inventors: 孟强
Original assignee: Dali Dianwei Energy Saving Lighting Co Ltd
Current assignee: Dali Dianwei Energy Saving Lighting Co Ltd
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-06-01
Anticipated expiration: 2025-12-30

Abstract

The utility model relates to a LED lighting technology field discloses a LED car lamp and car, and LED car lamp includes: lamp shade, heat dissipation chamber, air -cooled passageway, LED banks and fin gilled radiator, the lamp body of LED banks is located the lamp shade, and fin gilled radiator connects the dirver circuit board of LED banks, and fin gilled radiator is arranged in the heat dissipation chamber, air -cooled passageway is located lamp shade and heat dissipation chamber below, just with the chamber intercommunication that dispels the heat, the forced air cooling passageway is equipped with air -inlet grille, the air intake play of air -inlet grille is equipped with the filter screen, the forced air cooling passageway is the trend that narrows gradually with the chamber intercommunication department of dispelling the heat, just gap between fin gilled radiator's the fin towards the forced air cooling passageway. The utility model discloses a LED car lamp dispels the heat for fin gilled radiator through the air -cooled passageway that narrows gradually in the chamber junction of dispelling the heat, and the heat that makes LED send can give off fast to the light decay problem that is used for the LED lamp of car has been alleviateed greatly.

Description

LED automobile lamp and automobile

Technical field

This utility model relates to technical field of LED illumination, particularly to a kind of LED automobile lamp and automobile.

Background technology

Current automobile, electric automobile lighting headlight are typically all the powerful Halogen light of employing or xenon lamp, and the shortcoming of Halogen light is: electro-optic conversion rate is low, power consumption is big, service life is short; The shortcoming of xenon lamp is: colour temperature is high, and fog penetration power is poor, and needs high-tension circuit and stabilizer, and circuit structure is complicated, fault rate is high, although service life is longer than Halogen light, but also only has 3000 hours. For automobile, all of energy both is from fuel oil, and power consumption is greatly equal to energy waste.

The appearance of LED can solve the defect that energy consumption is big, electro-optic conversion rate is low and service life is short that existing light fixture exists, but the problem that LED in use produces heat and light decay occurs, LED in particular for auto lamp, because the shell of lamp itself is less, and require that luminescence is stronger, the heat produced easily is assembled, and light decay is even more serious.

Utility model content

The utility model proposes a kind of LED automobile lamp and automobile, solve in prior art and decline serious problem for the LED light of auto lamp.

LED automobile lamp of the present utility model, including: lampshade, heat dissipation cavity, air-cooled passage, LED group and finned radiator; The lamp body of described LED group is positioned at lampshade, finned radiator connects the drive circuit board of LED group, and finned radiator is arranged in heat dissipation cavity, described air-cooled passage is positioned at below lampshade and heat dissipation cavity, and connect with described heat dissipation cavity, described air-cooled passage is provided with air-inlet grille, and the air inlet of described air-inlet grille goes out to be provided with filter screen, described air-cooled passage and heat dissipation cavity connectivity part are in the trend narrowed gradually, and the gap between the fin of described finned radiator is towards described air-cooled passage.

Wherein, described air-cooled passage and heat dissipation cavity connectivity part are additionally provided with some flow deflectors.

Wherein, also including: controller and temperature sensor, described finned radiator is hollow structure, which is provided with water inlet and outlet, outlet is provided with electrically-controlled valve, temperature sensor is arranged on outside described finned radiator, and connection controller, described electrically-controlled valve connects described controller.

This utility model additionally provides a kind of automobile, including: water tank, water pump and above-mentioned LED automobile lamp, described water inlet and outlet are all connected with described water tank, and water pump is connected between water tank and water inlet, and connect described controller.

Wherein, described water tank is brake water-cooled water tank.

LED automobile lamp of the present utility model is that finned radiator dispels the heat by the air-cooled passage narrowed gradually in heat dissipation cavity junction, enables the heat Quick diffusing that LED sends, thus significantly reducing the light decay problem of the LED for automobile.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is a kind of LED automobile lamp structural representation (side view) of the present utility model;

Fig. 2 is the top view of fin in Fig. 1;

Fig. 3 is another kind of LED automobile lamp structural representation (side view) of the present utility model;

Fig. 4 is the top view of fin in Fig. 3;

Fig. 5 is the hollow enlarged drawing of fin in Fig. 4.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments. Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.

As it is shown in figure 1, the LED automobile lamp of the present embodiment, including: lampshade 100, heat dissipation cavity 200, air-cooled passage 300, LED group and finned radiator 500. The lamp body 410 of LED group is positioned at lampshade 100, and finned radiator 500 connects the drive circuit board 420 of LED group, and finned radiator 500 is arranged in heat dissipation cavity 200. Air-cooled passage 300 is positioned at below lampshade 100 and heat dissipation cavity 200, and connect with heat dissipation cavity 200, air-cooled passage 300 is provided with air-inlet grille 310 (being positioned at the front end of whole auto lamp), the air inlet of air-inlet grille 310 goes out to be provided with filter screen 600, in startup procedure, cold air enters air-cooled passage 300 from air-inlet grille 310, and filter screen 600 is used for preventing foreign body from entering air-cooled passage 300. In Fig. 1 shown in dotted-line ellipse frame, air-cooled passage 300 and heat dissipation cavity 200 connectivity part are in the trend narrowed gradually, and the gap (as shown in Figure 2) between the fin of finned radiator 500 is towards air-cooled passage 300. The structure narrowed gradually accelerates the flow velocity of cold air, and the gap between fin is towards air-cooled passage 300, cold air flows through in gap, maximum with finned radiator 500 contact surface, more heat can be taken away, thus significantly reducing the LED problem causing light decay due to heating.

Air-cooled passage 300 is additionally provided with some flow deflectors 320 with heat dissipation cavity connectivity part, and some flow deflectors 320 be arranged in parallel, it is prevented that air-flow produces sinuous flow at air-cooled passage 300 with heat dissipation cavity connectivity part, and cannot be taken out of soon outside heat dissipation cavity 200 by heat.

As seen in figures 3-5, the LED automobile lamp of the present embodiment also includes: controller (not shown) and temperature sensor 700, finned radiator 500 is hollow structure, which is provided with water inlet 510 and outlet 520, outlet 520 is provided with electrically-controlled valve (not shown), temperature sensor 700 is arranged on outside finned radiator 500, and connects controller, and electrically-controlled valve connects controller. The hollow structure of finned radiator 500 is used for filling water, and (can not be the cooling water tank of electromotor by water inlet 510 and outlet 520 with roof water tank, because the water tank temperature of electromotor could possibly be higher than the temperature of LED heating, it is possible to is the cooling water tank of the brake of special water box or lorry) form water circulation system.

For some trucks, generally at night running, illumination of turning on light for a long time, LED is easy to accumulation heat, and at this moment the temperature of LED cannot be dropped to a suitable temperature by air-cooled possibly. It is thus desirable to start above-mentioned water-cooling pattern, be combined with air cooling way and LED is cooled down. Temperature sensor 700 detects the temperature of finned radiator 500 when reaching the first temperature threshold, and notification controller, controller controls electrically-controlled valve and opens, and forms water circulation with the cold water in water tank, thus realizing water-cooled. After water-cooled, when the temperature that temperature sensor 700 detects finned radiator 500 drops to the second temperature threshold, notification controller, controller controls electrically-controlled valve and cuts out, and stops water circulation, continues by air-cooled, LED to be cooled down, to reduce energy consumption of vehicles.

This utility model additionally provides a kind of automobile, including: water tank, water pump and above-mentioned LED automobile lamp, described water inlet and outlet are all connected with described water tank (being connected by water pipe), and water pump is connected between water tank and water inlet, and connect described controller. When electrically-controlled valve is opened, water pump circulates for the water between water tank and finned radiator 500 under the control of the controller and provides power. Certain water pump can be that automobile batteries is powered and engine power generation is powered.

For truck, water tank is preferably brake water-cooled water tank, even if owing to the glassware for drinking water of water circulation rear water box has uniform temperature, but the high temperature that during relative to brake, brake disc produces is negligible. Stock car water tank is preferably different to the special water box of cooling water tank of engine.

The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.

Claims

1. a LED automobile lamp, it is characterised in that including: lampshade, heat dissipation cavity, air-cooled passage, LED group and finned radiator; The lamp body of described LED group is positioned at lampshade, finned radiator connects the drive circuit board of LED group, and finned radiator is arranged in heat dissipation cavity, described air-cooled passage is positioned at below lampshade and heat dissipation cavity, and connect with described heat dissipation cavity, described air-cooled passage is provided with air-inlet grille, and the air inlet of described air-inlet grille goes out to be provided with filter screen, described air-cooled passage and heat dissipation cavity connectivity part are in the trend narrowed gradually, and the gap between the fin of described finned radiator is towards described air-cooled passage.

2. LED automobile lamp as claimed in claim 1, it is characterised in that described air-cooled passage and heat dissipation cavity connectivity part are additionally provided with some flow deflectors.

3. LED automobile lamp as claimed in claim 1 or 2, it is characterized in that, also include: controller and temperature sensor, described finned radiator is hollow structure, which is provided with water inlet and outlet, outlet is provided with electrically-controlled valve, temperature sensor is arranged on outside described finned radiator, and connection controller, described electrically-controlled valve connects described controller.

4. an automobile, it is characterised in that including: water tank, water pump and LED automobile lamp as claimed in claim 3, described water inlet and outlet are all connected with described water tank, and water pump is connected between water tank and water inlet, and connect described controller.

5. automobile as claimed in claim 4, it is characterised in that described water tank is brake water-cooled water tank.