Hot Selling High Quality 200W LED Heat Sink

Heat sink design

1. Classification of heat dissipation fins

Commonly used heat sinks include aluminum profile heat sinks and ceramic heat sinks.

2. Fixing method of heat dissipation fins

The commonly used fixing methods for heat dissipation fins include silicone adhesive bonding, thermal double-sided adhesive bonding, screw installation, pushpin installation, and welding

Needle welding, etc.

3. Heat sink design

Ceramic heat sink can be selected according to the supplier's manual for the required size, without the need for self design.

The aluminum profile heat sink needs to be designed by oneself, and the design rules are as follows:

1) During design, no abnormal shapes are allowed except for special circumstances;

2) In order to facilitate the sharing of other products, the size of the heat sink is required to be an integer;

3) Matrix thickness: Based on the size of the heat sink, the thickness of the matrix should be controlled between 1.8-3mm. The larger the heat sink, the thicker the matrix should be

Large, generally recommended as 2mm;

4) Tooth thickness: According to different tooth heights, the tooth thickness should be controlled within 1-2mm; The higher the heat dissipation teeth, the thicker the teeth should be; Tooth height 10mm

The recommended tooth thickness for left and right is 1.2mm; The recommended tooth thickness is 1.5mm, with a tooth height of about 20mm; Recommended tooth thickness when making needle shaped heat dissipation fins

1.8mm.

5) Tooth spacing: recommended tooth spacing ≥ tooth thickness+0.5mm; The higher the tooth height, the corresponding increase in tooth spacing.

6) When designing, it is necessary to mark the flatness of the assembly surface of the thermal conductive adhesive, with the part line within 100mm and the flatness less than or equal to 0.1mm;

The part limit is greater than 100mm, and the flatness is less than or equal to 0.2mm.

4 Installation Design

1) The recommended opening for the heat sink and PCB installed in the pushpin is 3.6 ± 0.1mm; A single heat sink should at least

Using 2 push pins, if the weight of the heat sink is greater than 50g, at least 4 push pins are required.

2) For heat dissipation fins installed with welding pins, it is recommended to have a welding pin diameter of 1 ± 0.05mm and a PCB hole diameter of 1.2 ±

0.05mm, the height of the welding needle is based on 2mm protruding from the PCB; The pulling force of the welding needle shall not be less than 8KGF.

3) When installing the heat sink with screws, it is prohibited to use self tapping screws to install the heat sink; When installing by tapping on the heat dissipation fins, the

The appearance of the hot plate can be slightly relaxed; It is recommended to stick nuts on the PCB and use combination screws to fix and install it through the heat sink. Ruolu

Nail M3, heat sink opening 3.5 ± 0.1mm; If the screw M2.5 is used, the opening of the heat sink is 3 ± 0.1mm.

 

 

 

 

Basic Information

Total Capitalization	less than US$50,000
Country / Region	China
Year Established	2014
Total Employees	100 to 149
Business Type	Exporter, Manufacturer, Trading Company

 

Trading Capabilities

Total Annual Sales	less than US$50,000
Export Percentage	90 percent to 94 percent
OEM Services	Yes
Small Orders Accepted	Yes
Brand Names	Innolead
Payment Terms	TT
Main Competitive Advantages	Experienced R&D Department, Large Product Line, ODM (Original Designing & Manufacturing), OEM Capability, Production Capacity, Reliability, Reputation
Other Competitive Advantages	NA
Major Customer	Soprano, European Thermodynamics Ltd.
Export Markets	Australasia, Central/South America, Eastern Europe, Mid East/Africa, North America, Western Europe

 

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