CN210652163U

CN210652163U - Automobile lamp substrate

Info

Publication number: CN210652163U
Application number: CN201921369726.7U
Authority: CN
Inventors: 楼方禄; 羊有根; 邱凌; 刘大永; 祝广宏
Original assignee: Nanjing Leuchtek Electronic Co ltd
Current assignee: Nanjing Leuchtek Electronic Co ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-02
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses an automobile lamp base plate, it includes: the aluminum alloy heat-conducting insulating layer is characterized by comprising an upper aluminum substrate, an insulating layer and a lower aluminum substrate which are sequentially connected together, and aluminum alloy binding edges fixed around the upper aluminum substrate and the lower aluminum substrate are wrapped, non-penetrating holes or grooves are additionally formed in the bottom of the aluminum substrate, so that the bonding area of glue is increased, the binding force of the insulating layer and the aluminum substrate is increased, the aluminum alloy heat-conducting insulating layer is not prone to layering at high temperature, the binding edges around the aluminum substrate are wrapped, the connecting reliability of the insulating layer and the aluminum substrate is increased, the heat-conducting insulating layer is made of pure glue instead of a prepreg binding sheet coated with glass cloth, the binding force.

Description

Automobile lamp substrate

Technical Field

The utility model relates to the field of machine-building, specifically an automobile lamp base plate.

Background

The aluminum substrate is a metal-based copper-clad plate with a good heat dissipation function, has good heat conductivity, electrical insulation performance and machining performance, aluminum substrates are selected as base materials for more and more LED products at present, an automobile is a product with extremely high safety performance, and the failure of the automobile can be caused by the occurrence of any component, so that the life safety of people is damaged. The same is true for automotive lamp products.

The LED automobile lamp is characterized in that the inside and outside light sources of the automobile adopt the LED technology and are used for outside and inside illumination. External lighting devices involve thermal limits and EMC issues, while there are many sophisticated standards for off-load testing. The LED automobile lamp can be widely used for building the environment in the automobile, the service life is 5 ten thousand hours, the LED structure is firm, the LED is not easily influenced by vibration, and the light output brightness cannot be obviously reduced in the using process. The LED automotive lamp is suitable for various lighting applications of automotive electronics, including headlights (high beam and low beam), fog lights, tail lights, brake lights, turn signal lights, daytime running lights, pedal lights, instrument lights, license plate lights, door lights, interior lights, width lights, navigation, entertainment systems, backlights, indicator lights, and the like.

The aluminum substrate conventionally used for other types of LED lamps has insufficient heat conduction to meet the requirements of automobile lamps, and high heat conduction material must be adopted to meet the requirements, but the heat conduction coefficient of the aluminum substrate is directly related to the thickness of the insulating layer. The insulating layer plays an insulating role and is usually 50-200 um. If the thickness is too thick, the insulation effect can be achieved, the effect of preventing short circuit with the metal base is good, but the heat dissipation is influenced; if the thickness is too thin, the heat dissipation is better, but the metal core and the element lead are easily short-circuited.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the deficiencies of the prior art, the utility model provides a pair of car lamp base plate, this substrate simple structure, job stabilization is reliable, obtains improving in the aspect of the withstand voltage, has solved the insecure problem of layering connection.

The technical scheme is as follows: in order to achieve the above object, the present invention provides an automobile lamp substrate, which includes: the aluminum alloy plate comprises an upper aluminum substrate, an insulating layer, a lower aluminum substrate and aluminum alloy wrapping edges, wherein the upper aluminum substrate, the insulating layer and the lower aluminum substrate are sequentially connected together, and the aluminum alloy wrapping edges are fixed on the periphery of the upper aluminum substrate and the periphery of the lower aluminum substrate.

As a further preferred aspect of the present invention, the lower side of the upper aluminum substrate and the upper side of the lower aluminum substrate are provided with holes or grooves.

As a further preferred aspect of the present invention, the holes or the grooves are not penetrated holes or grooves, and the bonding area of the glue is increased, so as to improve the bonding force between the insulating layer and the aluminum substrate, and to prevent delamination at high temperature.

As the utility model discloses a further preferred, hole or groove evenly arrange in the below of last aluminium base board and the top of aluminium base board down

As a further preferred embodiment of the present invention, the insulating layer is made of pure rubber and has a thickness of 100 μm.

As the utility model discloses a further preferred, the aluminium alloy bound width be 1 mm.

Has the advantages that: the utility model provides a pair of car lamp base plate compares with prior art, has following advantage:

(1): the bottom of the aluminum substrate is additionally provided with the unpenetrated hole or groove, so that the bonding area of glue is increased, the bonding force between the insulating layer and the aluminum substrate is improved, and the aluminum substrate is not easy to delaminate at high temperature;

(2): the edge of the aluminum substrate is covered, so that the connection reliability of the insulating layer and the aluminum substrate is improved;

(3): the heat-conducting insulating layer is made of pure glue instead of a semi-solidified bonding sheet coated with glass cloth, so that the binding force between the insulating layer and the aluminum plate is increased, and the heat-conducting insulating layer is not easy to delaminate at high temperature.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of an upper aluminum substrate;

FIG. 3 is a schematic view of the positional relationship between the aluminum substrate and the insulating layer.

Detailed Description

The invention will be further elucidated with reference to the drawings and the specific embodiments.

As shown in the attached drawings, the utility model discloses an automobile lamp base plate, it includes: the aluminum alloy aluminum-clad plate comprises an upper aluminum substrate 1, an insulating layer 2, a lower aluminum substrate 3 and an aluminum alloy clad 4, wherein the upper aluminum substrate 1, the insulating layer 2, the lower aluminum substrate 3 and the aluminum alloy clad 4 are sequentially connected together, and the aluminum alloy clad 4 is fixed on the periphery of the upper aluminum substrate 1 and the lower aluminum substrate 3.

Holes or grooves which are not penetrated are formed below the aluminum substrate 1 and above the lower aluminum substrate 3 and are uniformly distributed below the upper aluminum substrate 1 and above the lower aluminum substrate 3, and the holes or grooves which are not penetrated are additionally formed in the bottom of the aluminum substrate, so that the bonding area of glue is increased, the bonding force between the insulating layer and the aluminum substrate is increased, and the delamination is not easy to occur at high temperature.

The insulating layer 2 is made of pure glue, the thickness of the insulating layer is 100 microns, and the heat conduction insulating layer is made of pure glue instead of a semi-solidified bonding sheet coated with glass cloth, so that the bonding force between the insulating layer and the aluminum plate is increased, and the insulating layer is not easy to delaminate at high temperature.

The width of the aluminum alloy covered edge 4 is 1mm, and the connection reliability of the insulating layer and the aluminum substrate is improved.

Claims

1. An automotive lamp substrate characterized in that: it includes: the aluminum alloy plate comprises an upper aluminum substrate (1), an insulating layer (2), a lower aluminum substrate (3) and aluminum alloy covered edges (4) fixed on the periphery of the upper aluminum substrate (1) and the lower aluminum substrate (3), wherein the upper aluminum substrate, the insulating layer (2) and the lower aluminum substrate (3) are sequentially connected together.

2. An automotive lamp substrate according to claim 1, characterized in that: holes or grooves are formed below the upper aluminum substrate (1) and above the lower aluminum substrate (3).

3. An automotive lamp substrate according to claim 2, characterized in that: the holes or grooves are holes or grooves which are not penetrated.

4. An automotive lamp substrate according to claim 3, characterized in that: the holes or the grooves are uniformly distributed below the upper aluminum substrate (1) and above the lower aluminum substrate (3).

5. An automotive lamp substrate according to claim 1, characterized in that: the insulating layer (2) is made of pure glue and has the thickness of 100 mu m.

6. An automotive lamp substrate according to claim 1, characterized in that: the width of the aluminum alloy wrapping edge (4) is 1 mm.