What is claimed is:
1. A heat dissipation module, comprising:
a fan having a shaft with a first end and an opposite second end, the first end of the shaft penetrating a hub of the fan and connecting to a heating element; and
a heat sink connected to the second end of the shaft; wherein the shaft is made form materials with high thermal conductivity.
2. The heat dissipation module according to claim 1, wherein the shaft is a heat pipe.
3. The heat dissipation module according to claim 1, wherein the materials with high thermal conductivity is selected from the group of aluminum, copper, aluminum alloy, copper alloy and their compounds.
4. The heat dissipation module according to claim 1, further comprising a base mounted on the heating element, and the shaft is fixed on the base to connect to the heating element.
5. The heat dissipation module according to claim 4, wherein the base is formed with a plurality of teeth circularly arranged on its surface, and a gap is formed between two adjacent teeth.
6. The heat dissipation module according to claim 5, wherein the teeth are made from materials with high thermal conductivity.
7. The heat dissipation module according to claim 4, wherein the base is formed with a plurality of bumps on its surface.
8. The heat dissipation module according to claim 7, wherein the bumps are made from materials with high thermal conductivity.
9. The heat dissipation module according to claim 4, wherein the base is formed with an opening, and the shaft is inserted into the opening to fix on the base.
10. A heat dissipation module, comprising:
a shaft made from materials with high thermal conductivity having a first end connecting to a heating element and an opposite second end;
a stator assembly fixed on the shaft;
a rotor pivotally joined to the shaft and kept a fixed distance from the stator assembly through magnetic interaction; and
a heat sink connected to the second end.
11. The heat dissipation module according to claim 10, wherein the shaft is a heat pipe.
12. The heat dissipation module according to claim 10, wherein the materials with high thermal conductivity is selected from the group of aluminum, copper, aluminum alloy, copper alloy and their compounds.
13. The heat dissipation module according to claim 10, wherein the rotor is made from materials with high thermal conductivity.
14. The heat dissipation module according to claim 10, wherein the first end of the shaft is formed with an enlarged portion to increase an area in contact with the heating element.
15. The heat dissipation module according to claim 10, further comprising a base mounted on the heating element.
16. The heat dissipation module according to claim 15, wherein the base is interposed between the shaft and the heating element, and the shaft is fixed on the base to connect to the heating element.
17. The heat dissipation module according to claim 15, wherein the shaft penetrates the base and touches the heating element.
18. The heat dissipation module according to claim 15, wherein the base is formed with a plurality of teeth circularly arranged on its surface, and a gap is formed between two adjacent teeth.
19. The heat dissipation module according to claim 18, wherein the shape of the teeth conforms to a flow channel design.
20. The heat dissipation module according to claim 15, wherein the base is formed with a plurality of bumps on its surface.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Method for surveying the ocean floor, and cables and other structures on the ocean floor in areas with strong currents using, a submersible survey platform (10) lowered from a surface vessel by a winch system (12) on the vessel to a desired depth in relation to the ocean floor, and controlling the distance from the ocean floor in relation to the topography of the ocean floor while the vessel moves the platform (10) along a desired trajectory using the winch (12) to control the depth of the platform, characterized by
controlling in real time the distance to the ocean floor using one or more sensors that register distance to and, optionally. the direction towards the ocean floor the one or more sensors being connected to the winch (12) via a control system (14), and
at the same time compensating for any sideways movements of the platform (10) caused by currents using one or more sensors that are connected to a plurality of thrusters (16) mounted on the platform (10) via said control system (14).
2. Method according to claim 1, characterized in that the platform (10) is being weighed down, depending on the depth it is to operate at and the local current, so that a negative buoyancy is established.
3. Method according to claim 1, characterized in that a pressure influencer is used at greater depths to force the platform down when the vessel moves forward.
4. Method according to claim 1, characterized in that said thrusters (16) in addition to sideways movements of the platform are also controlled to turn the platform (10) around in relation to a desired position in the water.
5. Remotely controllable survey platform for surveying the ocean floor, and cables and other structures on the ocean floor in ocean areas with strong currents, in that a submersible survey platform (10) is lowerable from a surface vessel with the help of a winch system (12) on the vessel to a predetermined depth in relation to the ocean floor, and to control with the winch (12) desired fixed distance to the ocean floor in relation to the topography of the ocean floor, at the same time as the vessel moves forward to move the platform (10) along a desired trajectory, charaterized in that
a control system (14) to control said predetermined distance from the ocean floor in real time, with the help of one or more sensors that register distance to and optionally the direction towards the ocean floor of the control system being connected to the winch (12), and
that said control system (14) at the same time compensates for sideways movements of the platform (10) caused by currents using, one or more sensors that are connected to a plurality of thrusters (16) mounted on the platform (10).
6. Remotely controllable survey platform according to claim 5, characterized in that the platform (10) comprises a number of sensors, in order to in real time to control said desired fixed distance to the ocean floor, that are chosen from a group comprising, depth sensors, altimeters, differential depth measuring devices, pressure gauges and HPR.
7. Remotely controllable survey platform according to claim 5, characterized in that the platform (10), for at the same time to compensate for sideways movements of the platform (10) caused by currents, comprises a number of sensors that are chosen from a group comprising; north seeking gyros, HPR, Doppler and INS.
8. Remotely controllable survey platform according to claim 5, characterized in that the platform (10) for carrying out a survey comprises a number of survey sensors selected from the group consisting of multi-ray weights, side-scanning sonar, sonars, sub-bottom profiles, video cameras, laser cameras, still photos, and cameras.
9. Remotely controllable survey platform according to claim 5, characterized in that the control system (14) is connected to said sensors, and that the control system is arranged to control the winch (12) and said thrusters (16) to control the position in the water of the platform, and also to receive data collected by the survey sensors.
10. Remotely controllable survey platform according to claim 5, characterized in that the platform (10) is shaped in an edged frame structure (18) through which water can flow, with at least one thruster (16) in more than one corner.
11. Method according to claim 2 characterized, in that a pressure influencer is used at greater depths to force the platform down when the vessel moves forward.
12. Method according to claim 2, characterized in that said thrusters (16) in addition to sideways movements of the platform are also controlled to turn the platform (10) around in relation to a desired position in the water.
13. Method according to claim 3, characterized in that said thrusters (16) in addition to sideways movements of the platform are also controlled to turn the platform (10) around in relation to a desired position in the water.
14. Remotely controllable survey platform according to claim 6, characterized in that the platform (10) for carrying out a survey comprises a number of survey sensors selected from the group consisting of multi-ray weights, side-scanning sonar, sonars, sub-bottom profiles, video cameras, laser cameras, still photos, and cameras.
15. Remotely controllable survey platform according to claim 7 characterized in that the platform (10) for carrying out a survey comprises a number of survey sensors selected from the group consisting of multi-ray weights, side-scanning sonar, sonars, sub-bottom profiles, video cameras, laser cameras, still photos, and cameras.
16. Remotely controllable survey platform according to claim 6, characterized in that the control system (14) is connected to said sensors, and that the control system is arranged to control the winch (12) and said thrusters (16) to control the position in the water of the platform, and also to receive data collected by the survey sensors.
17. Remotely controllable survey platform according to claim 7, characterized in that the control system (14) is connected to said sensors, and that the control system is arranged to control the winch (12) and said thrusters (16) to control the position in the water of the platform, and also to receive data collected by the survey sensors.
18. Remotely controllable survey platform according to claim 8, characterized in that the control system (14) is connected to said sensors, and that the control system is arranged to control the winch (12) and said thrusters (16) to control the position in the water of the platform, and also to receive data collected by the survey sensors.