CN223090518U

CN223090518U - A cold riveting structure for a car lamp radiator and LED soft board

Info

Publication number: CN223090518U
Application number: CN202422287006.3U
Authority: CN
Inventors: 张陶; 张荣平; 张小云; 王道文; 常洪江
Original assignee: Xunchi Vehicle Jiangsu Co ltd
Current assignee: Xunchi Vehicle Jiangsu Co ltd
Priority date: 2024-09-19
Filing date: 2024-09-19
Publication date: 2025-07-11
Anticipated expiration: 2034-09-19

Abstract

The utility model discloses a cold riveting structure of a car lamp radiator and an LED soft board, including a radiator, an LED soft board, an aluminum gasket of an LED soft board, glue, thermal conductive silicone, and a radiator with a cold riveting column. The LED soft board and the aluminum gasket of the LED soft board are glued together to form an LED soft board assembly. The back of the aluminum gasket of the LED soft board is coated with thermal conductive silicone. The LED soft board assembly is placed on a radiator with a cold riveting column and cold riveted and fixed. The utility model fixes the radiator and the LED soft board with cold riveting, makes the radiator and the mounting bracket into a pair of molds, and designs riveting columns for cold riveting connection, thereby solving the mold cost and space problems and simplifying the process. When designing this cold riveting structure, the strength of the cold riveting structure can also meet the vibration requirements and the heat dissipation effect of the original radiator, occupies a smaller space, and saves costs.

Description

Cold riveting structure for car lamp radiator and LED soft board

Technical Field

The utility model belongs to the field of automobile lamps, and particularly relates to a cold riveting structure for an automobile lamp radiator and an LED soft board.

Background

In the design of the automobile lamp, the control requirements of customers on the manufacturing cost of the automobile lamp are more and more stringent, the LED soft board is fixed in a mode of increasing the power of the LEDs, the heat dissipation requirement of the LEDs is increased, the LED soft board is generally fixed in a mode of tapping and screwing, the process is complex and the cost is high, the LED soft board is directly fixed on a radiator in order to better improve the heat dissipation efficiency, and the cost is saved by adopting a cold riveting mode, so that the heat dissipation efficiency of the LED soft board is also met under the condition of meeting the requirements of the customer cost limit, a plastic bracket is cancelled, the radiator and the bracket are made into a pair of dies, and the LED soft board, an aluminum gasket and the radiator are subjected to cold riveting fixation. When the back of the LED soft board is added with the aluminum gasket and connected with glue, 2 cold riveting columns are added on the radiator, two holes are correspondingly formed in the LED soft board and the aluminum gasket at each position, after the back of the aluminum gasket is coated with heat conducting silica gel, the LED soft board subassembly is sleeved on the cold riveting columns, and then the cold riveting columns are pressed by a cold riveting process, so that the pressed cold riveting columns can cover and fix the LED soft board and the aluminum gasket. Meanwhile, the size of the cold riveting column, the gap between the cold riveting column and the soft board, the gap between the cold riveting column and the aluminum gasket and the cold riveting safety gap of the LED on the soft board are considered, and the cold riveting safety gap is a plurality of problem factors which need to be considered and solved by structural designers. The current common LED soft board mounting mode comprises the following steps:

the LED soft board, the aluminum gasket and the radiator are assembled through screws, and then the radiator assembly is assembled with the mounting bracket, and the screw fixing mode requires a larger mounting space because of a screw structure, and requires to open a radiator and a mounting bracket 2 pair of dies, so that the working procedure is complex and the die cost is higher;

The LED soft board is connected with the aluminum gasket and the radiator through heat conduction glue, then the radiator assembly is assembled with the mounting bracket screw, and the radiator and the mounting bracket 2 pair of dies are required to be opened, so that the working procedure is complex and the die cost is high.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a cold riveting structure for an automobile lamp radiator and an LED soft board, which aims to solve the problems of installation cost and space control of the automobile lamp radiator and the LED soft board.

The cold riveting structure of the car lamp radiator and the LED soft board is characterized by comprising a radiator, an LED soft board aluminum gasket, glue, heat-conducting silica gel, wherein the radiator is provided with a cold riveting column, the LED soft board and the LED soft board aluminum gasket are adhered by the glue to form an LED soft board assembly, the back of the LED soft board aluminum gasket is coated with the heat-conducting silica gel, and the LED soft board assembly is placed on the radiator with the cold riveting column to be subjected to cold riveting fixation by a cold riveting process.

The diameter a of a riveting column of a cold riveting column of the radiator is larger than 2mm, the thickness c of an aluminum gasket of an LED soft board is 1mm, meanwhile, the gap d of cold riveting of an LED is larger than 2.5mm, the height of a protruding LED soft board after the riveting column of the radiator is riveted is 0.5mm, the height e of the protruding LED soft board after the riveting column of the radiator is riveted is 0.5mm, the calculating formula of the height b of the protruding LED soft board before the riveting column of the radiator is riveted is b=0.4 (c+e)/a+e. At the same time, the gap between the riveting column and the LED soft board 2 as well as between the riveting column and the LED soft board aluminum gasket 3 is left to be 0.05mm or 0.1mm, as a limiting function.

The utility model has the advantages that the radiator and the LED soft board are fixed through cold riveting, the radiator and the mounting bracket are made into a pair of dies and the radiator, and the riveting column is designed for cold riveting connection, so that the die cost and space problems are solved, the working procedure is simplified, and the strength of the cold riveting structure can meet the vibration requirement when the cold riveting structure is designed, the heat dissipation effect of the original radiator occupies smaller space, and the cost is saved.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a schematic illustration of the present utility model after assembly;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

Fig. 4 is a B-B cross-sectional view of fig. 2.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

1-3, A car light radiator and LED soft board cold riveting structure comprises a radiator 1, an LED soft board 2, an LED soft board aluminum gasket 3, glue 4 and heat conduction silica gel 5, wherein the radiator 1 is provided with a cold riveting column, the LED soft board 2 and the LED soft board aluminum gasket 3 are adhered by the glue 4 to form an LED soft board assembly, the back of the LED soft board aluminum gasket 3 is coated with the heat conduction silica gel 5, and the LED soft board assembly is placed on the radiator 1 with the cold riveting column to be subjected to cold riveting fixation by a cold riveting process. Finally, the radiator assembly can be fixed with other internal components. The LED soft board 2 is a step-shaped whole body formed by a plurality of LED boards, the radiator 1 is also a whole body corresponding to the LED soft board, the radiator 1 is provided with a plurality of cold riveting columns, the cold riveting columns correspond to the LED boards, and the LED soft board aluminum gaskets 3 are adhered to the LED boards of the LED soft board in a one-to-one correspondence.

Referring to fig. 4, a diameter a of a riveting column of a cold riveting column of the radiator 1 is larger than 2mm, a thickness c of an aluminum gasket 3 of the LED soft board is 1mm, a gap d of cold riveting of the LED is larger than 2.5mm, a height of the riveting column of the radiator 1 protruding the LED soft board 2 after riveting is 0.5mm, a height e of the riveting column of the radiator 1 protruding the LED soft board 2 after riveting is 0.5mm, a calculation formula of a height b of the riveting column of the radiator 1 protruding the LED soft board 2 before riveting is b=0.4 (c+e)/a+e.

The LED soft board fixing device is simple in structure, the LED soft board sub-assembly is fixed through cold riveting connection of the LED soft board and the cold riveting column of the radiator, the matched size of the LED soft board and the cold riveting column of the radiator is designed to meet the process, the LED soft board is prevented from shaking after being installed, the installation strength is good, and the effects of limiting, installing, radiating and vibrating are achieved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a car light radiator and LED soft board cold riveting structure, a serial communication port, including radiator (1), LED soft board (2), LED soft board aluminium gasket (3), glue (4), heat conduction silica gel (5), radiator (1) have cold riveting post, LED soft board assembly is constituteed with glue (4) paste in LED soft board (2) and LED soft board aluminium gasket (3), heat conduction silica gel (5) are scribbled at LED soft board aluminium gasket (3) back, LED soft board assembly is placed and is carried out cold riveting technology on radiator (1) with cold riveting post and carry out cold riveting fixedly.

2. The cold riveting structure of a car light radiator and an LED soft board according to claim 1, wherein a diameter a of a riveting column of the cold riveting column of the radiator (1) is larger than 2mm, a thickness c of an LED soft board aluminum gasket (3) is 1mm, a gap d of cold riveting of the LED is larger than 2.5mm, a height of the riveting column of the radiator (1) protruding the LED soft board (2) after riveting is 0.5mm, a height e of the riveting column of the radiator (1) protruding the LED soft board (2) after riveting is 0.5mm, a height b of the riveting column of the radiator (1) protruding the LED soft board (2) before riveting is calculated according to a formula, b=0.4 x (c+e)/a+e.