Magnetic coupling drive cold plate module

Abstract

A magnetically coupled driven cold plate module includes a cold plate, at least one impeller, and at least one magnetically coupled drive assembly. The cold plate has an inlet and an outlet, and a flow channel is formed inside. The impeller is disposed in the flow channel and has a first magnetic element thereon. The magnetically coupled drive assembly is located outside the cold plate and includes at least one support member. The support member has a second magnetic element corresponding to the first magnetic element. The impeller is driven to rotate in a non-contact manner via magnetic field coupling, causing the coolant to circulate along the flow channel. The flow channel includes branch channels with a curved widening section and an oblique inlet section, which can improve the guiding and pressurizing efficiency during forward flow and form a high flow resistance zone during reverse flow to suppress backflow, thereby improving the coolant circulation stability and the cold plate's heat dissipation performance.

Claims

1. A magnetically coupled cold plate module, comprising: A cold plate has an inlet and an outlet. A flow channel is provided within the cold plate, connecting the inlet and outlet, and includes a main flow channel and at least one branch flow channel. The main flow channel extends from the inlet to the outlet, and the branch flow channel branches off from one section of the main flow channel and merges with it at another section. At least one impeller is disposed within the flow channel, and each impeller has at least one first magnetic element. At least one magnetic coupling drive assembly is disposed outside the cold plate. The magnetic coupling drive assembly includes a rotatable support member, and each support member has at least one second magnetic element. The second magnetic element is correspondingly configured with the first magnetic element to drive the impeller to rotate through magnetic field interaction, thereby propelling the coolant along the flow channel towards the outlet.

2. The magnetically coupled cold plate module as described in claim 1, wherein, The cold plate includes: an upper plate body having a water inlet end and a water outlet end, the water inlet end and the water outlet end being respectively connected to the flow channel via an inlet channel and a outlet channel; and a lower plate body being combined with the upper plate body, the flow channel being disposed in at least one of the upper plate body or the lower plate body.

3. The magnetically coupled cold plate module as described in claim 1, wherein, The flow channel is provided with a first flow guide and a second flow guide, which are located on different sides of the main flow channel and are staggered from each other in the flow direction.

4. The magnetically coupled cold plate module as described in claim 3, wherein, The main channel includes: an upstream section, which refers to the portion of the main channel extending from the location of the main channel corresponding to the inlet channel to the beginning of the first guide section; a midstream section, which refers to the portion of the main channel from the beginning of the first guide section to the end of the second guide section; and a downstream section, which refers to the portion of the main channel extending from the end of the second guide section to the location corresponding to the outlet channel.

5. The magnetically coupled cold plate module as described in claim 4, wherein, The at least one branch channel includes a first branch channel that branches off from one side of the upstream section of the main channel and merges with the main channel in the midstream section. The first branch channel includes a first curved widening section and a first inlet section.

6. The magnetically coupled cold plate module as described in claim 5, wherein, The at least one branch channel also includes a second branch channel, which branches off from the other side of the midstream section of the main channel and merges with the main channel in the downstream section. The second branch channel includes a second bend widening section and a second inlet section.

7. The magnetically coupled cold plate module as described in claim 6, wherein, The first inlet segment forms a first angle with the main channel, and the second inlet segment forms a second angle with the main channel.

8. The magnetically coupled cold plate module as described in claim 6, wherein, The at least one impeller includes a first impeller and a second impeller, the first impeller being disposed in the first curved and widened section, and the second impeller being disposed in the second curved and widened section.

9. The magnetically coupled cold plate module as described in claim 2, wherein, Each impeller includes: a shaft spanning between the upper plate and the lower plate; a bearing sleeved on the shaft; and a base sleeved on the bearing and rotatable relative to the shaft, the base having a plurality of pump blades.

10. The magnetically coupled driven cold plate module as described in claim 9, wherein, The upper plate and the lower plate are each provided with a support member to support and position the two ends of the shaft.

11. The magnetically coupled driven cold plate module as described in claim 1, wherein, The magnetic coupling drive assembly further includes: at least one drive motor having an output shaft connected to the carrier for driving the carrier to rotate; and a control circuit board electrically connected to the drive motor for controlling the operation of the drive motor.

12. The magnetically coupled cold plate module as described in claim 11 further includes a housing disposed outside the cold plate, and the drive motor, the carrier and the control circuit board disposed inside the housing.

Images