Double-cavity water pump

Abstract

The utility model provides a double-cavity water pump, it includes a body, a drive module, a circulation module, a drainage module and a heat conduction module, the body is a barrel-shaped object, it includes a circulation cavity and a drive cavity adjacent to the circulation cavity and is respectively provided with an open end, the circulation cavity is sealed by the heat conduction module, and the drive cavity is sealed by the heat conduction module. The driving cavity is sealed by a detachable upper cover, and the driving module and non-conductive liquid are accommodated in the driving cavity; due to the design of the independent cavity, the heat dissipation effect of the driving module is improved, and the liquid inlet amount of the cooling liquid is increased.

Description

Technical Field

[0001] The utility model relates to a water pump device, in particular to a double-cavity water pump device. Background Art

[0002] Current water pump devices are commonly used to reduce the operating temperature of a computer, such as a central processing unit (CPU) or a graphics processing unit (GPU). The water pump device uses a driver to drive a motor to assist the coolant to flow to a heat conductive block in contact with the processor, thereby taking the heat energy generated by the processor away from the water pump device to a coolant source. After cooling, the coolant can be recycled.

[0003] 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 amount of coolant that the control circuit board contacts is limited, 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 coolant circulation per unit time, which also affects the heat dissipation efficiency of the water pump device.

[0004] In view of this, providing a water pump device that improves the heat dissipation efficiency of the control circuit board and increases the circulation volume of the coolant per unit time has become a development goal in the relevant field. Utility Model Content

[0005] In order to solve the dual technical problems of space limitation of existing water pumps and heat dissipation of circuit boards, the utility model proposes a water pump device for improving the heat dissipation efficiency of control circuit boards and increasing the circulation volume of coolant per unit time, namely, a double-chamber water pump, which includes a main body, a driving module, a circulation module, a drainage module and a heat-conducting module. The main body is a barrel, which includes a circulation chamber and a driving chamber adjacent to the circulation chamber and each has an open end. The circulation chamber is sealed with the heat-conducting module, and the driving chamber is sealed with a detachable upper cover. The driving chamber accommodates the driving module and a non-conductive liquid.

[0006] The driving module is arranged 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 to the heat conduction module through the drainage module.

[0007] Among them, 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 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 so that the iron core coils generate an alternating magnetic field and drive the circulation module.

[0008] 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.

[0009] Furthermore, the motor rotor is a hollow ring having a plurality of magnetic pole rings corresponding to the outside of the motor stator in 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 fan blades, and the fan blades are protruded downward corresponding to the drainage module; the rotating member hole passes through the fan blade gap along the axial direction.

[0010] The drainage module includes a drainage cover and a drainage plate, and the coolant is guided into the heat conduction module via the drainage cover and the drainage plate.

[0011] The heat conduction module includes a heat conduction base plate and a heat conduction block, which transfer the heat energy of the external heat source to the coolant.

[0012] Wherein, the corresponding position of the circulation cavity includes a water inlet and a water outlet.

[0013] It can be seen from the above description that the utility model has the following characteristics:

[0014] 1. A double-chamber detachable design allows the driving chamber to accommodate the non-conductive liquid, thereby achieving a good heat dissipation effect of the driving module; the detachable upper and lower cover design makes the double-chamber water pump easier to assemble and increases the convenience of use.

[0015] 2. Because the driving cavity and the circulation cavity are separate independent cavities, the cavity space is increased so that the fan blade design thickness of the rotating part can be increased, making it easier to demold the rotating part in the process of injection molding, thereby increasing the yield rate and increasing the amount of coolant entering, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional appearance schematic diagram of an embodiment of the utility model.

[0017] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the utility model.

[0018] Figure 3 It is a schematic diagram of an exploded view of an embodiment of the utility model.

[0019] Figure 4 It is a schematic diagram of a driving module and a circulation module according to an embodiment of the utility model.

[0020] Figure 5 Schematic diagram of the drainage module according to an embodiment of the utility model.

[0021] Explanation of symbols:

[0022] 10 body

[0023] 11 drive cavity

[0024] 111 First Open End

[0025] 112 Removable top cover

[0026] 12 circulation chambers

[0027] 121 Second open end

[0028] 122 convex shaft

[0029] 123 Water Inlet

[0030] 124 water outlet

[0031] 20 driver modules

[0032] 21 Motor stator

[0033] 211 iron core coil

[0034] 22 Control circuit board

[0035] 30 loop module

[0036] 31 Rotating parts

[0037] 311 motor rotor

[0038] 312 impeller

[0039] 313 rotating part hole

[0040] 32 spindle

[0041] 40 drainage module

[0042] 41 Drainage cover

[0043] 411 drainage hole

[0044] 412 Liquid inlet

[0045] 413 rectangular slot

[0046] 414 mandrel groove

[0047] 42 drainage plate

[0048] 421 drainage port

[0049] 422 drainage channel

[0050] 50 thermal conductive module

[0051] 51 Thermal base plate

[0052] 52 heat conduction block

[0053] ACoolant

[0054] B Non-conductive liquid DETAILED DESCRIPTION

[0055] Please refer to Figure 1 , Figure 2 as well as Figure 3 The utility model provides a double-chamber water pump, which includes a body 10, a driving module 20, a circulation module 30, a drainage module 40 and a heat conduction module 50.

[0056] 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 with each other. In this embodiment, the driving chamber 11 and the circulation chamber 12 are disconnected.

[0057] The driving cavity 11 includes a first open end 111 sealed by a detachable upper cover 112 , so that the driving cavity 11 can contain a non-conductive liquid B. The non-conductive liquid B is used to assist the driving module 20 in dissipating heat.

[0058] 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 conductive module 50 so that the circulation chamber 12 can seal and contain the coolant A. The heat conductive module 50 is used to fit with an external heat source to assist the external heat source in dissipating heat through the coolant A.

[0059] The water inlet 123 and the water outlet 124 are respectively connected to a coolant source (not shown in the figure) and the circulation chamber 12; when in use, the water inlet 123 guides a coolant A from the coolant source into the circulation chamber 12, and the water outlet 124 guides the coolant A out of the circulation chamber 12.

[0060] The driving chamber 11 and the circulation chamber 12 have a protruding shaft 122 at their centers adjacent to each other. The circulation module 30 is driven by the driving module 20 in a non-contact manner and rotates relative to the driving module 20 via the protruding shaft 122 .

[0061] Please refer to Figure 4 The driving module 20 is placed in the driving cavity 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 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.

[0062] 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 integrally formed through 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 in the radial direction, and its position is opposite to the motor stator 21 and rotates to the motor stator 21. The impeller 312 radially protrudes outward with the core shaft 32 as the center to form a plurality of blades, each of which can be in a curved shape. The rotating member hole 313 axially penetrates the fan blade gap, so that the coolant A is prevented from accumulating between the core shaft 32 and the rotating member 31, causing the circulation module 30 to reduce its service life due to wear. The rotating member 31 is driven by the driving module 20 to rotate around the core shaft 32.

[0063] Please refer to Figure 3 and Figure 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 coolant 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 core shaft groove 414, wherein the rectangular groove 413 is located at the bottom of the drainage cover 41, which 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 coolant A can be discharged upward corresponding to the fan blade gap. The liquid inlet hole 412 guides the coolant 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, and the drainage channel 422 is a long strip groove located at the bottom of the drainage plate 42, which is used to allow the coolant A carrying heat energy to be collected from the heat conductive module 50 through the drainage channel 422 to the drainage port 421.

[0064] 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 coolant A flows into the heat-conducting base plate 51 through the liquid inlet hole 412, so as to carry out the heat energy transferred to the heat-conducting block 52 through the external heat source.

[0065] The coolant A enters the circulation chamber 12 through the water inlet 123, and flows into the heat conductive module 50 through the liquid inlet hole 412. The motor rotor 311 is driven by the motor stator 21 to drive the circulation module 20 to rotate relative to the driving module 30, and the coolant A flows upward from the heat conductive module 50 to the drainage hole 411 through the drainage port 421, and finally the coolant A carrying heat energy is taken away from the main body 10 to the coolant tank through the water outlet 124, and is recycled after the coolant A is cooled.

[0066] Based on the description of the above embodiments, the double-chamber water pump provided by the utility model can produce the following effects:

[0067] 1. A double-chamber detachable design allows the driving chamber 11 to accommodate the non-conductive liquid B, thereby achieving a good heat dissipation effect of the driving module 20; the detachable upper and lower cover design makes the double-chamber water pump easier to assemble and increases the convenience of use.

[0068] 2. Because the driving 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 during the injection molding process, thereby increasing the yield rate and thereby increasing the amount of coolant A flowing in, thereby improving the heat dissipation efficiency.

Claims

1. A double-chamber water pump, characterized in that: It includes a main body, a driving module, a circulation module, a drainage module and a heat conductive module. The main body is a barrel-shaped object, which includes a circulation chamber and a driving chamber adjacent to the circulation chamber and each has an open end. The circulation chamber is sealed with the heat conductive module, and the driving chamber is sealed with a detachable upper cover. The driving chamber accommodates the driving module and a non-conductive liquid.

2. The double-chamber water pump according to claim 1, characterized in that: The driving module is arranged in the driving cavity to drive the circulation cavity; The circulation chamber contains the circulation module, the drainage module, the heat conduction module and a cooling liquid. The driving module drives the circulation module to drive the cooling liquid to the heat conduction module through the drainage module.

3. The double-chamber water pump according to claim 1 or 2, characterized in that: 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. The control circuit board selectively supplies an external power supply to the plurality of iron core coils so that the iron core coils generate an alternating magnetic field and drive the circulation module.

4. The double-chamber water pump according to claim 3, characterized in that: The circulation module comprises a rotating part and a core shaft. The rotating part comprises 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.

5. The double-chamber water pump according to claim 4, characterized in that: The motor rotor is a hollow ring having a plurality of magnetic poles in annular shape corresponding to the outer portion of the motor stator in the radial direction and rotating relative to the motor stator.

6. The double-chamber water pump according to claim 5, characterized in that: The impeller is radially bent outward with the core shaft as the center to form a plurality of blades, and the blades are protruded downward and correspond to the drainage module.

7. The double-chamber water pump according to claim 6, characterized in that: The rotating member hole passes through the fan blade gap along the axial direction.

8. The double-chamber water pump according to claim 6, characterized in that: The flow guide module includes a flow guide cover and a flow guide plate, and the cooling liquid is guided into the heat conduction module via the flow guide cover and the flow guide plate.

9. The double-chamber water pump according to claim 8, characterized in that: The heat conduction module includes a heat conduction base plate and a heat conduction block, which transfers heat energy from an external heat source to the coolant.

10. The double-chamber water pump according to claim 9, characterized in that: The corresponding positions of the circulation cavity include a water inlet and a water outlet.

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