CN211399622U

CN211399622U - Locomotive lighting device convenient to heat dissipation

Info

Publication number: CN211399622U
Application number: CN201922458178.1U
Authority: CN
Inventors: 崔德志; 刘洪仁; 周天智; 孙建; 陈为春
Original assignee: Zhengzhou Lide Ruiming Technology Co ltd
Current assignee: Zhengzhou Lide Ruiming Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-01
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a locomotive lighting device convenient for heat dissipation, which comprises a bottom plate, a bracket and a lighting mechanism, wherein the bracket is arranged above the bottom plate, and the lighting mechanism is arranged on the bracket; the lighting mechanism comprises an aluminum substrate and a rear shell connected to the rear of the aluminum substrate, a plurality of LED chips are uniformly distributed on the front end face of the aluminum substrate, mounting holes are formed in the rear shell, and a cooling fan is arranged at the position, corresponding to the mounting holes, of the rear end face of the rear shell; the utility model discloses can effectively improve the heat dispersion of LED chip when realizing the LED chip illumination, and then reduce LED chip light decay, prolong train lighting mechanism's life and reliability.

Description

Locomotive lighting device convenient to heat dissipation

Technical Field

The utility model relates to a train lighting device technical field especially relates to a locomotive lighting device convenient to heat dissipation.

Background

At present, with the rapid development of railway operation technology, the safety operation performance standard of locomotives is increasingly improved, wherein, headlamps are used as important parts for train running, and the requirements on safety, intellectualization and the like are also increasingly higher. Because the LED illumination is the major achievement of present science and technology, so each factory in China is put into strength research and development, experiment again at a glance, however, because LED heating stability is relatively poor, internal resistance descends when the temperature risees and arouses overcurrent and overheated, so the common shortcoming of LED lamp is exactly the light decay, this must clear away almost all with the advantage of its long-life, domestic street lamp damages, the dark is exactly the example, consequently, overcomes the generate heat of LED chip and becomes the important subject that awaits for a long time to solve among the LED lighting apparatus.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a locomotive lighting device convenient to heat dissipation can effectively improve the heat dispersion of LED chip when realizing the illumination of LED chip, and then reduces LED chip light decay, extension train lighting mechanism's life and reliability.

The utility model adopts the technical proposal that:

a locomotive lighting device convenient for heat dissipation comprises a bottom plate, a bracket and a lighting mechanism, wherein the bracket is arranged above the bottom plate, and the lighting mechanism is arranged on the bracket; the lighting mechanism comprises an aluminum substrate and a rear shell connected to the rear of the aluminum substrate, a plurality of LED chips are uniformly distributed on the front end face of the aluminum substrate, a mounting hole is formed in the rear shell, and a cooling fan is arranged at the position, corresponding to the mounting hole, of the rear end face of the rear shell.

Further, the aluminum substrate is an aluminum type radiator, and fins of the aluminum type radiator are vertically arranged along the front-back direction.

Furthermore, the rear shell comprises a back plate and side plates which are oppositely arranged at the two ends of the back plate at the left and right, and the two ends of the aluminum substrate are respectively connected with the side plates at the two sides.

Furthermore, a heat dissipation layer made of heat-conducting silicone grease is arranged on the back surface of the aluminum substrate.

Further, the support includes two support arms that control relative setting, rotates between two support arms to be connected with the pivot, and lighting mechanism connects in the pivot and rotates along with the pivot front and back.

The utility model discloses following beneficial effect has:

(1) the LED chips are uniformly arranged on the aluminum substrate with good heat dissipation performance, so that the heat accumulation of the LED chips is reduced, the heat dissipation area of the LED metal base plate is enlarged to the whole aluminum substrate from a single lamp bead metal base plate, the heat dissipation performance of the LED chips is improved, meanwhile, heat convection is formed by matching with a heat dissipation fan arranged on the rear shell, and the good overall heat dissipation effect of the lighting mechanism is further achieved;

(2) by adopting the aluminum type radiator as the aluminum substrate and vertically arranging the fins of the aluminum type radiator along the front-back direction, the circulation of convection channels formed between the fins and the radiating fan is stronger, and the radiating effect is further improved;

(3) the heat dissipation layer is formed by coating the heat conduction silicone grease on the back surface of the aluminum substrate, so that heat can be effectively transferred to the heat dissipation fins, and the heat dissipation performance is further improved.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a rear view of the present invention.

Description of reference numerals:

1. an aluminum substrate; 2. a rear housing; 3. LED lamp beads; 4. a support arm; 5. a base plate; 6. a side plate; 7. a back plate; 8. a heat dissipation fan.

Detailed Description

As shown in fig. 1, the utility model comprises a bottom plate 5, a bracket and a lighting mechanism, wherein the bracket is arranged above the bottom plate 5, and the lighting mechanism is arranged on the bracket; the lighting mechanism comprises an aluminum substrate 1 and a rear shell 2 connected to the rear side of the aluminum substrate 1, a plurality of LED chips are uniformly distributed on the front end face of the aluminum substrate 1, a mounting hole is formed in the rear shell 2, and a heat radiation fan 8 is arranged at the position, corresponding to the mounting hole, of the rear end face of the rear shell 2.

In order to better understand the present invention, the technical solution of the present invention is further explained below with reference to the accompanying drawings.

As shown in fig. 1, the present invention includes a bottom plate 5, a bracket and an illumination mechanism.

The support includes two support arms 4 that control relative setting, rotates between two support arms 4 to be connected with the pivot, and lighting mechanism connects in the pivot and rotates along with the pivot front and back.

The lighting mechanism comprises an aluminum substrate 1 and a rear shell 2 connected to the rear of the aluminum substrate 1, the rear shell 2 comprises a back plate 7 and side plates 6 which are oppositely arranged on the left side and the right side of the front end of the back plate 7, and two ends of the aluminum substrate 1 are respectively connected with the side plates 6 on the two sides.

The aluminum substrate 1 is an aluminum type radiator, radiating fins of the aluminum type radiator are positioned on the rear end face of the aluminum substrate 1 and are vertically arranged along the front-rear direction, the back face of the aluminum substrate 1 is coated with heat-conducting silicone grease to form a radiating layer, and the radiating layer can effectively transfer heat to the radiating fins.

A plurality of LED lamp beads 3 used for lighting are uniformly arranged on the front end face of the aluminum substrate 1, each LED lamp bead 3 comprises an LED chip and a lamp shell, the LED chips are mounted on the front end face of the aluminum substrate 1 in a welding mode, the heat dissipation area of the LED metal bottom plate 5 is enlarged to the whole aluminum substrate 1 through the single lamp bead metal bottom plate 5, and the heat dissipation performance of the LED chips is improved.

Two through mounting holes are horizontally formed in the back plate 7 of the rear shell 2, the heat dissipation fans 8 are respectively arranged at positions, corresponding to the mounting holes, of the back end face of the back plate 7, heat convection is formed between the heat dissipation fans 8 and the heat dissipation fins, and the effect of overall heat dissipation of the headlamp is finally achieved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or equivalent replaced by some or all of the technical features, and the modifications or the replacements may not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a locomotive lighting device convenient to heat dissipation which characterized in that: the device comprises a bottom plate, a bracket and an illuminating mechanism, wherein the bracket is arranged above the bottom plate, and the illuminating mechanism is arranged on the bracket; the lighting mechanism comprises an aluminum substrate and a rear shell connected to the rear of the aluminum substrate, a plurality of LED chips are uniformly distributed on the front end face of the aluminum substrate, a mounting hole is formed in the rear shell, and a cooling fan is arranged at the position, corresponding to the mounting hole, of the rear end face of the rear shell.

2. The locomotive lighting device for facilitating heat dissipation of claim 1, wherein: the aluminum substrate is an aluminum type radiator, and fins of the aluminum type radiator are vertically arranged along the front-back direction.

3. The locomotive lighting device for facilitating heat dissipation of claim 2, wherein: the rear shell comprises a back plate and side plates which are oppositely arranged at the two ends of the back plate at the left and right, and the two ends of the aluminum substrate are respectively connected with the side plates at the two sides.

4. The locomotive lighting device for facilitating heat dissipation of claim 2, wherein: and the back surface of the aluminum substrate is provided with a heat dissipation layer consisting of heat-conducting silicone grease.

5. The locomotive lighting device for facilitating heat dissipation of any one of claims 1 to 4, wherein: the support includes two support arms that control relative setting, rotates between two support arms to be connected with the pivot, and lighting mechanism connects in the pivot and rotates around following the pivot.