Cooling fluid pump and electric apparatus, such as personal computer, provided with the pump

A cooling fluid pump in which a cooling fluid is caused to flow to cool a heating element, comprising:

• a casing brought into a direct contact or an indirect contact via a heat transfer member with the heating element;
• a pump chamber provided in the casing and having a center located axially away from a center of the casing;
• an impeller rotatably provided in the pump chamber and including a pump groove formed in either one of both axial end faces, the impeller having an axis of rotation located radially away from a center of the casing;
• an inlet formed in the casing so that the cooling fluid is supplied therethrough into the pump chamber by action of the pump groove with rotation of the impeller;
• and
• an outlet formed in the casing so that the cooling fluid is discharged therethrough out of the pump chamber by action of the pump groove with rotation of the impeller.

An electric apparatus including a heating element, comprising:

• a cooling fluid pump in which a cooling fluid is caused to flow to cool a heating element, the cooling fluid pump including:
• a casing brought into a direct contact or an indirect contact via a heat transfer member with the heating element;
• a pump chamber provided in the casing;
• an impeller rotatably provided in the pump chamber and including a pump groove formed in either one of both axial end faces, the impeller having an axis of rotation located radially away from a center of the casing;
• an inlet formed in the casing so that the cooling fluid is supplied therethrough into the pump chamber by action of the pump groove with rotation of the impeller;
• and
• an outlet formed in the casing so that the cooling fluid is discharged therethrough out of the pump chamber by action of the pump groove with rotation of the impeller.

A personal computer comprising:

• a CPU;
• a cooling fluid pump in which a cooling fluid is caused to flow to cool the CPU, the cooling fluid pump including:
• a casing brought into a direct contact or an indirect contact via a heat transfer member with the CPU;
• a pump chamber provided in the casing;
• an impeller rotatably provided in the pump chamber and including a pump groove formed in either one of both axial end faces, the impeller having an axis of rotation located radially away from a center of the casing;
• an inlet formed in the casing so that the cooling fluid is supplied therethrough into the pump chamber by action of the pump groove with rotation of the impeller;
• and
• an outlet formed in the casing so that the cooling fluid is discharged therethrough out of the pump chamber by action of the pump groove with rotation of the impeller;
• and
• a heat radiating plate having a fluid passage with both ends connected to the inlet and the outlet respectively.