Patent ID: 8303267

Claim:
A liquid cooling unit comprising: a pump body containing a reciprocating component of a reciprocating pump; a nipple formed in the pump body, the nipple defining an outflow passage for coolant; an elastic tube having a tip end receiving insertion of the nipple so that the elastic tube is coupled to the nipple; a fixation member defining a groove supporting the nipple inside the elastic tube over a first predetermined length from a tip end of the nipple, the groove receiving the elastic tube alone ahead of the tip end of the nipple over a second predetermined length from the tip end of the nipple; an urging member overlaid on the fixation member to close the groove, the urging member urging the elastic tube against a bottom of the groove, an attachment piece located on a first side of the pump body, configured to hold the pump body and the attachment piece itself along an imaginary plane which is between and parallel to top and bottom surfaces of the pump body and which includes a longitudinal axis of the nipple which is located on an opposite second side of the pump body; a first support piece located on the first side of the pump body configured to hold the pump body, the attachment piece and the first support piece itself on the first side of the pump body and along the imaginary plane; and a second support piece located on the first side of the pump body supporting the attachment piece on the first side of the pump body in a direction perpendicular to the imaginary plane, allowing movement of the attachment piece along the imaginary plane, wherein a part of the elastic tube in a circumferential direction within the first predetermined length is held between the nipple and the fixation member and another part of the elastic tube in the circumferential direction within the first predetermined length is held between the nipple and the urging member.