TWM662009U - Double chamber water pump - Google Patents

Abstract

The present invention provides a double-chamber water pump, which includes a body, a drive module, a circulation module, a drainage module and a heat conduction module. The body is a barrel, which includes a circulation chamber and a drive chamber adjacent to the circulation chamber and each has an open end. The circulation chamber is sealed with the heat conduction module, and the drive chamber is sealed with a detachable upper cover. The drive chamber accommodates the drive module and a non-conductive liquid. The independent chamber design of the present invention improves the heat dissipation effect of the drive module and increases the amount of coolant inlet.

Description

Double chamber water pump

A water pump device, in particular a double-chamber water pump device.

The current water pump device is commonly used to reduce the operating temperature of the central processing unit (CPU) and the graphics processing unit (GPU) in the computer during operation. The water pump device uses a driver to drive a motor to assist the cooling liquid to flow to the heat conductive block in contact with the processor, and takes the heat energy generated by the processor away from the water pump device to a cooling liquid source. After cooling, the cooling liquid can be recycled.

The driver includes a control circuit board that needs to drive the motor through an external power supply. Because the driver and the motor are limited by the volume of the water pump device chamber, the control circuit board is limited in contact with the cooling liquid, resulting in poor heat dissipation of the control circuit board and thus affecting the operation of the water pump device. The motor is also limited by the volume of the chamber, resulting in a smaller amount of cooling liquid circulated per unit time, which also affects the heat dissipation efficiency of the water pump device.

In view of this, providing a water pump device that improves the heat dissipation efficiency of the control circuit board and increases the amount of cooling liquid circulating per unit time has become a development goal in related fields.

In order to solve the dual technical problems of existing water pump space limitation and circuit board heat dissipation, this novel invention proposes a water pump device that improves the heat dissipation efficiency of the control circuit board and increases the circulation volume of the cooling liquid per unit time. It is a double-chamber water pump, which includes a body, a drive module, a circulation module, a drainage module and a heat conduction module. The body is a barrel, which includes a circulation chamber and a drive chamber adjacent to the circulation chamber and each has an open end. The circulation chamber is sealed with the heat conduction module, and the drive chamber is sealed with a detachable upper cover. The drive chamber contains the drive module and a non-conductive liquid.

The driving module is installed in the driving cavity to drive the circulation cavity; the circulation cavity accommodates the circulation module, the drainage module, the heat conduction module and a cooling liquid, and the driving module drives the circulation module to drive the cooling liquid through the drainage module to the heat conduction module.

The drive module includes a motor stator and a control circuit board. The motor stator has a plurality of iron core coils, which are arranged in a ring shape at the bottom of the control circuit board and form a loop with the iron core coils. The control circuit board selectively passes an external power supply to the plurality of iron core coils to generate an alternating magnetic field and drive the circulation module.

The circulation module includes a rotating part and a core shaft. The rotating part includes a motor rotor, an impeller and a plurality of rotating part holes, which are integrally formed. The core shaft is inserted into the center of the rotating part and rotates with the core shaft.

Furthermore, the motor rotor is a hollow ring having a plurality of magnetic pole rings corresponding to the outside of the motor stator along the radial direction and rotating relative to the motor stator; the impeller is radially bent outward with the core shaft as the center to form a plurality of blades, and the blades are protruding downwards corresponding to the drainage module; the rotating member hole axially penetrates the blade gap.

The drainage module includes a drainage cover and a drainage plate, and the cooling liquid is guided into the heat conduction module through the drainage cover and the drainage plate.

The heat conduction module includes a heat conduction base plate and a heat conduction block to transfer the heat energy of the external heat source to the cooling liquid.

From the above description, it can be seen that this new model has the following features:

1. A double-chamber detachable design allows the drive chamber to accommodate the non-conductive fluid, thereby achieving a good heat dissipation effect for the drive module; the detachable upper and lower cover design makes the double-chamber water pump easier to assemble and increases the convenience of use.

2. Because the drive chamber and the circulation chamber are separate independent chambers, the increased chamber space allows the fan blade design thickness of the rotating part to be increased, making it easier to demold the rotating part during injection molding, increasing the yield rate, and thus increasing the amount of cooling liquid inflow, improving heat dissipation efficiency.

10: Body

11: Driving chamber

111: First open end

112: Removable cover

12: Circulatory cavity

121: Second open end

122: Convex shaft

123: Water inlet

124: Water outlet

20:Drive module

21: Motor stator

211: Iron core coil

22: Control circuit board

30: Circulation module

31: Rotating parts

311: Motor rotor

312: Impeller

313: Rotating part hole

32: Spindle

40: Drainage module

41: Drainage cover

411: Drainage hole

412: Liquid inlet hole

413: Rectangular slot

414: Spindle groove

42: Drainage plate

421: Drainage port

422: Drainage channel

50: Thermal conductivity module

51: Thermal conductive base plate

52: Heat conducting block

A: Coolant

B: Non-conductive fluid

Figure 1 is a three-dimensional schematic diagram of the appearance of this new embodiment

Figure 2 is a cross-sectional schematic diagram of the new embodiment

Figure 3 is a schematic diagram of the decomposition of this new embodiment

Figure 4 is a schematic diagram of the drive module and circulation module of this new embodiment

Figure 5 is a schematic diagram of the drainage module of this new embodiment

Please refer to Figures 1, 2 and 3. The present invention provides a dual-chamber water pump, which includes a body 10, a drive module 20, a circulation module 30, a drainage module 40 and a heat conduction module 50.

The main body 10 is a barrel-shaped object, which includes a driving chamber 11 and a circulation chamber 12. The driving chamber 11 and the circulation chamber 12 are adjacent to each other and can be connected or disconnected. In this embodiment, the driving chamber 11 and the circulation chamber 12 are disconnected.

The drive chamber 11 includes a first open end 111 sealed with a removable upper cover 112, so that the drive chamber 11 can accommodate a non-conductive liquid B, and the non-conductive liquid B is used to assist the drive module 20 in heat dissipation.

The circulation chamber 12 includes a second open end 121, a water inlet 123 and a water outlet 124. The second open end 121 is sealed by the heat-conducting module 50, so that the circulation chamber 12 can contain the cooling liquid A in a sealed manner. The heat-conducting module 50 is used to fit an external heat source to assist the external heat source in heat dissipation through the cooling liquid A.

The two ends of the water inlet 123 and the water outlet 124 are respectively connected to a cooling liquid source (not shown in the figure) and the circulation chamber 12; when in use, the water inlet 123 guides a cooling liquid A from the cooling liquid source into the circulation chamber 12, and the water outlet 124 guides the cooling liquid A out of the circulation chamber 12.

The center of the driving chamber 11 and the circulation chamber 12 adjacent to each other includes a protruding shaft 122. The circulation module 30 is driven by the driving module 20 in a non-contact manner, and the protruding shaft 122 rotates relative to the driving module 20.

Please refer to Figure 4. The driving module 20 is placed in the driving chamber 11, and includes a motor stator 21 and a control circuit board 22. The motor stator 21 has a plurality of iron core coils 211, which are arranged in a ring shape at the bottom of the control circuit board 22 and form a loop with the iron core coils 211. The control circuit board 22 selectively conducts the plurality of iron core coils 211 so that each iron core coil 211 generates an alternating magnetic field to drive the circulation module 30.

The circulation module 30 is installed in the circulation chamber 12, and includes a rotating member 31 and a core shaft 32. The rotating member 31 includes a motor rotor 311, an impeller 312 and a plurality of rotating member holes 313. The motor rotor 311 and the impeller 312 can be made in one piece by injection molding. The core shaft 32 is inserted in the center of the rotating member 31, and the rotating member 31 rotates around the core shaft 32. The motor rotor 311 is a hollow ring, which has a plurality of magnetic pole rings corresponding to the outside of the motor stator 21 along the radial direction, and its position is opposite to the motor stator 21 and rotates relative to the motor stator 21. The impeller 312 radiates outwards with the spindle 32 as the center to form a plurality of blades, each of which may be curved. The rotating member hole 313 axially penetrates the gap between the blades, which prevents the cooling liquid A from accumulating between the spindle 32 and the rotating member 31, thereby reducing the service life of the circulation module 30 due to wear. The rotating member 31 is driven by the driving module 20 to rotate with the spindle 32 as the center.

Please refer to FIG. 3 and FIG. 5 , the drainage module 40 is installed in the circulation chamber 12 and is spaced opposite to the bottom of the circulation module 30, so that the rotation of the rotating member 31 can drive the cooling liquid A to quickly flow into the drainage module 40. The drainage module 40 includes a drainage cover 41 and a drainage plate 42. The drainage cover 41 has a plurality of drainage holes 411, a liquid inlet hole 412, a rectangular groove 413 and a mandrel groove 414, wherein the rectangular groove 413 is located at the bottom of the drainage cover 41, and accommodates the drainage plate 42 so that it is embedded in the drainage cover 41. The drainage holes 411 are arranged in a ring-shaped interval around the core shaft groove 414, corresponding to the fan blade gap of the impeller 312, so that the cooling liquid A can be discharged upwards corresponding to the fan blade gap. The liquid inlet hole 412 guides the cooling liquid A to flow to the drainage plate 42; the drainage plate 42 has a drainage port 421 and a drainage channel 422. The drainage port 421 corresponds to the drainage hole 411. The drainage channel 422 is a long strip groove located at the bottom of the drainage plate 42, which is used to collect the cooling liquid A carrying heat energy from the heat conduction module 50 through the drainage channel 422 to the drainage port 421.

The heat-conducting module 50 is installed in the circulation chamber 12, and includes a heat-conducting base plate 51 and a heat-conducting block 52. The heat-conducting block 52 is a metal rectangular body placed on the heat-conducting base plate 51. The cooling liquid A flows into the heat-conducting base plate 51 through the liquid inlet hole 412, so as to remove the heat energy transferred to the heat-conducting block 52 by the external heat source.

The cooling liquid A enters the circulation chamber 12 through the water inlet 123, flows into the heat conduction module 50 through the liquid inlet hole 412, and the motor rotor 311 is driven by the motor stator 21 to drive the circulation module 30 to rotate relative to the drive module 20, and the cooling liquid A flows upward from the heat conduction module 50 through the drainage port 421 to the drainage hole 411, and finally the cooling liquid A carrying heat energy is taken away from the main body 10 to the cooling liquid tank through the water outlet 124, and the cooling liquid A is circulated after cooling is completed.

Based on the above description of the implementation method, the double-chamber water pump provided by this new model can produce the following effects:

1. A double-chamber detachable design allows the drive chamber 11 to accommodate the non-conductive fluid B, thereby achieving a good heat dissipation effect for the drive module 20; the detachable upper and lower cover design makes the double-chamber water pump easier to assemble and increases the convenience of use.

2. Because the drive chamber 11 and the circulation chamber 12 are separate independent chambers, the fan blade design thickness of the rotating part 31 can be increased, making it easier to demold the rotating part 31 in the injection molding process, and the yield rate is increased. Therefore, the amount of the cooling liquid A is increased, and the heat dissipation efficiency is improved.

10: Body

11: Driving chamber

112: Removable cover

12: Circulatory cavity

122: Convex shaft

20:Drive module

21: Motor stator

22: Control circuit board

30: Circulation module

31: Rotating parts

32: Spindle

414: Spindle groove

Claims (10)

A double-chamber water pump includes a body, a drive module and a heat-conducting module. The body is a barrel, and includes a circulation chamber and a drive chamber adjacent to the circulation chamber, each having an open end. The circulation chamber is sealed with the heat-conducting module, and the drive chamber is sealed with a detachable upper cover. The drive chamber contains the drive module and a non-conductive fluid. As described in claim 1, the driving module is installed in the driving chamber to drive the circulation chamber; the circulation chamber contains the circulation module, the drainage module, the heat conduction module and a cooling liquid, and the driving module drives the circulation module to drive the cooling liquid through the drainage module to the heat conduction module. As described in claim 2, the double-chamber water pump, the driving module includes a motor stator and a control circuit board, the motor stator has a plurality of iron core coils, which are arranged in a ring shape at the bottom of the control circuit board and form a loop with the iron core coils, and the control circuit board selectively passes an external power supply to the plurality of iron core coils to generate an alternating magnetic field in the iron core coils and drive the circulation module. As described in claim 3, the double-chamber water pump, the circulation module includes a rotating part and a core shaft, the rotating part includes a motor rotor, an impeller and a plurality of rotating part holes, which are integrally formed, the core shaft is inserted in the center of the rotating part and rotates with the core shaft. As described in claim 4, the double-chamber water pump, the motor rotor is a hollow ring having a plurality of magnetic pole rings corresponding to the outside of the motor stator along the radial direction, and rotating relative to the motor stator. As described in claim 5, the double-chamber water pump, the impeller is radially bent outward with the core shaft as the center to form a plurality of blades, and the blades are protruding downward to correspond to the drainage module. In the double-chamber water pump as described in claim 6, the rotating member hole axially penetrates the fan blade gap. As described in claim 6, the double-chamber water pump, the drainage module includes a drainage cover and a drainage plate, and the coolant is guided into the heat conduction module through the drainage cover and the drainage plate. As described in claim 8, the double-chamber water pump, the heat-conducting module includes a heat-conducting base plate and a heat-conducting block, which transfers the heat energy of the external heat source to the cooling liquid. As described in claim 9, the double-chamber water pump includes a water inlet and a water outlet at the corresponding position of the circulation chamber.

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