US 12,078,190 B2
Liquid-cooling heat dissipation device
Tsung-Wei Lin, New Taipei (TW); and Shui-Fa Tsai, New Taipei (TW)
Assigned to COOLER MASTER CO., LTD., New Taipei (TW)
Filed by COOLER MASTER CO., LTD., New Taipei (TW)
Filed on Apr. 20, 2020, as Appl. No. 16/853,701.
Claims priority of application No. 108215769 (TW), filed on Nov. 27, 2019.
Prior Publication US 2021/0156399 A1, May 27, 2021
Int. Cl. F04D 29/58 (2006.01); H05K 7/20 (2006.01)
CPC F04D 29/5873 (2013.01) [H05K 7/20254 (2013.01); H05K 7/20272 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A liquid-cooling heat dissipation device, comprising:
a base, having a first inlet and a first outlet; and
two pumps, disposed on the base and connected to the first inlet and the first outlet in a parallel arrangement;
wherein each of the two pumps comprises:
a tank part, having an exposed surface, and the exposed surface of the tank part being light-permeable; and
a liquid driving assembly, disposed in the tank part, the liquid driving assembly comprising a power source and an impeller, the power source configured to drive the impeller to rotate relative to the tank part, and the impeller exposed via the exposed surface of the tank part;
wherein said each of the impellers comprises a hub and a plurality of blades, in said each of the impellers, the hub has a first exposed surface facing the exposed surface of the tank part, the plurality of blades protrude from the first exposed surface, each of the plurality of blades has a second exposed surface facing the exposed surface of the tank part, and the second exposed surfaces and the first exposed surface provide different visual effects;
wherein a color of the first exposed surfaces is different from a color of the second exposed surfaces;
wherein in said each of the impellers, the first exposed surface and the second exposed surface are in contrast colors; and
wherein the exposed surfaces of the tank parts slant towards each other in a direction away from the base.