A water-cooled radiator with low electromagnetic interference
A water-cooled radiator, low electromagnetic technology, applied in the direction of electric solid device, cooling/ventilation/heating transformation, circuit, etc., can solve the problems of increasing R&D design cost, complicated principle, adverse effect of heat dissipation effect, etc., to achieve simple structure, restraint The effect of disturbing the current and improving the effect
Active Publication Date: 2019-01-25
NARI TECH CO LTD +5
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Problems solved by technology
[0006] At present, most measures to reduce electromagnetic interference adopt the method of designing filters or increasing the thickness of thermal grease to increase parasitic impedance and suppress common mode interference. However, these methods or principles are complicated, which increase the cost of R&D and design, or affect the heat dissipation effect. adversely affect
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Embodiment Construction
[0018] The present invention will be further described below in combination with the accompanying drawings and specific embodiments.
[0019] Such as Figure 4 As shown, the water-cooled radiator with low electromagnetic interference in this embodiment includes a water tank 3 and a coolant 5 in the water tank. The water tank includes an upper cover 31 and a lower cover 32. Both the upper cover 31 and the lower cover 32 are conductors. The upper cover 31 is connected to the DC 0V ground, and the lower cover 32 is connected to the chassis ground; the outer wall of the upper cover 31 is covered with thermal conductive silicone grease 2, and the thermal conductive silicone grease 2 Bonded with the heating device 1 to dissipate heat from the heating device 1; a metal shielding layer 4 is provided in the middle of the thermal conductive silicone grease 2, and the metal shielding layer 4 is connected to DC 0V ground; the cooling liquid 5 is an insulating liquid. The area of the me...
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The invention discloses a water cooling radiator with low electromagnetic interference. The water cooling radiator comprises a water box and a cooling liquid in the water box. The water box comprises an upper cover and a lower cover. Both the upper cover and the lower cover are conductors, and the upper cover and the lower cover are connected in an insulation way through an insulation mounting groove. The upper cover is connected to a direct current 0V ground, and the lower cover is connected to a shell ground. The outer wall of the upper cover is coated by a heat-conducting silicone grease, a metal shielding layer is arranged in the heat-conducting silicone grease and a connected to the direct current 0V ground. The cooling liquid is insulation liquid. The structure of the water cooling radiator is simple, the electromagnetic interference which is transmitted through the parasitic capacitor of the water cooling radiator can be reduced, and the heat radiation performance of the water cooling radiator is not affected.
Description
technical field [0001] The invention relates to the technical field of electromagnetic interference, in particular to a water-cooled radiator with low electromagnetic interference. Background technique [0002] Now power electronic components are developing in the direction of high power and high frequency. The power loss generated by each component during the working process will eventually cause the temperature of the system to rise. These components work at high frequencies, such as high-power devices IGBT chips It will generate a lot of heat, which will affect the normal use of components, and even damage the components due to overheating in severe cases, which needs to be dissipated in time. Improving the cooling system, improving the heat dissipation capacity, and reducing the temperature rise of the charger are the main problems that need to be solved in the development of components in the direction of high power and high frequency. At present, common heat dissipati...
Claims
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IPC IPC(8): H05K7/20H05K9/00H01L23/473
Inventor 徐石明陈良亮张卫国石进永唐雾婺杨凤坤邓超柯慧敏齐连伟王念春陈中黄学良
Owner NARI TECH CO LTD