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1.0mm copper plate plus 1.0mm copper plate is the light center of 5.0mm, so it does not focus light. In order to focus the light, this kind of shape appears, the middle is 0.9 mm.
But if it is so thin, the heat conduction is not good.
And also add 2 copper plates of 1.0 mm, that is, to achieve a 2.9 mm light center
Finally, this kind of double-sided product appeared, a copper plate with a thickness of 1.0 mm, with lamp beads on both sides, and the luminous spacing between the two lamp beads is 1.0 mm
This structure is called aluminum sandwich copper
This is 2 pieces of copper clip aluminum
This is an aluminum and copper structure
The optimal structure is the two-half structure
This is the slot for the light board.
Put the plate on top
like this structure
But this side will vacate
At last upgrade to a two-half structure, it is between the two copper sheets, aluminum and aluminum plus copper
This is another two-half structure, which is currently the best thermally conductive structure.
This structure will continue to be upgraded
The third load is aluminum parts
The heat dissipation area of the aluminum sheet is the surface area of the fin
Because the heat will end up in this radiator
The greater the surface area and the air contact, the faster the heat dissipation
This style clips the fan inside
The back cover and the fan form a whole, and the heat dissipation effect is the best
The lamp beads generate heat, which is transmitted to the ceramic substrate and the lamp board, and the lamp board is transmitted to the aluminum parts, which is the heat dissipation process.
You can look at the structure of the lamp and judge the service life of the lamp according to the entire heat dissipation process.
First of all, see if he is a 2 and a half structure,
Then see how big the heat dissipation surface of the fins is
How much surface area to dissipate
Is the design of the back cover of the fan ventilated and how much wind power is generated
Good heat dissipation can ensure its long service life