Water cooling device with detachably assembled modularized units

1. A water cooling device with detachably assembled modularized units for application to electronic devices comprising at least one pump unit and at least one heat exchange unit; and the pump unit and the heat exchange unit being modularized for the heat exchange unit to be detachably assembled to the pump unit wherein the heat exchange unit and the pump unit are horizontally positioned side by side; the heat exchange unit having a liquid case and a heat dissipation member; the liquid case internally defining a heat exchange chamber and having a water inlet and a water outlet; the water inlet being communicable with the heat exchanger chamber and the water outlet; the water inlet being further in contact with the pump unit and designed for detachably connecting to the pump unit; the heat exchanger chamber being designed for the cooling liquid to pass through; and the heat dissipation member being provided in the heat exchange chamber,

wherein the pump unit includes a pump housing and a pump; the pump housing internally defining a pump chamber and having an inlet and a first outlet communicable with the pump chamber; the pump chamber being designed for a cooling liquid to pass therethrough; and the pump being positioned in the pump chamber and submerged in the cooling liquid to circulate the cooling liquid in the pump chamber.

2. The water cooling device as claimed in claim 1 , wherein the pump has a stator and a rotor; the rotor being connected to an impeller that is exposed to the cooling liquid in the pump chamber.

3. The water cooling device as claimed in claim 1 , wherein the heat dissipation member has a plurality of heat radiation fins-arrayed on a bottom of the liquid case to space from one another in the heat exchange chamber.

4. The water cooling device as claimed in claim 3 , wherein each of the heat radiation fins has a plurality of through holes formed thereon; the through holes being communicable with the heat exchange chamber and extended through the heat radiation fins in a thickness direction thereof, and the through holes on every heat radiation fin being communicable with one another.

5. The water cooling device as claimed in claim 1 , wherein the heat dissipation member has a plurality of heat radiation posts arrayed on a bottom of the liquid case to space from one another in the heat exchange chamber.

6. The water cooling device as claimed in claim 1 , wherein the heat dissipation member is integrally formed with the liquid case to locate in the heat exchange chamber between the water inlet and the water outlet, so as to form a transversely extended winding passage in the heat exchange chamber for guiding the cooling liquid from the water inlet to the water outlet.

7. The water cooling device as claimed in claim 1 , wherein the pump unit further includes a second outlet communicable with the inlet, the first outlet and the pump chamber, and there are a first and a second modularized heat exchange unit included in the water cooling device; the first and the second heat exchange unit being designed for detachably assembled to the pump unit; and each of the first and the second heat exchange unit being horizontally connected to the pump unit side by side.

8. The water cooling device as claimed in claim 7 , wherein the first heat exchange unit has a first liquid case and a first heat dissipation member, and the second heat exchange unit has a second liquid case and a second heat dissipation member;

the first liquid case internally defining a first heat exchange chamber and having a first water inlet and a first water outlet; the first water inlet being communicable with the first heat exchange chamber, the first water outlet and the first outlet; the first water inlet being designed for correspondingly detachably connected to the first outlet of the pump unit; the first heat exchange chamber being designed for the cooling liquid to pass therethrough; and the first heat dissipation member being provided in the first heat exchange chamber; and

the second liquid case internally defining a second heat exchange chamber and having a second water inlet and a second water outlet; the second water inlet and the second water outlet being communicable with the second heat exchange chamber; the second water inlet being designed for correspondingly detachably connected to the second outlet of the pump unit; the second heat exchange chamber being designed for the cooling liquid to pass therethrough; and the second heat dissipation member being provided in the second heat exchange chamber.

9. The water cooling device as claimed in claim 8 , wherein the first and the second heat dissipation member respectively have a plurality of heat radiation fins, which are arrayed on bottoms of the first and the second liquid case to space from one another in the first and the second heat exchange chamber.

10. The water cooling device as claimed in claim 1 , wherein the pump unit and the heat exchange unit are connected to a heat radiator via a plurality of tubes, so that the cooling liquid can flow through the tubes into the heat radiator and be cooled.