Dual-Chamber Pump

The present invention relates to a pump, particularly to a dual-chamber pump.

A conventional pump is usually disposed in a computer to cool down the working temperature generated by a component of the computer, such as central processing unit (CPU) or graphics processing unit (GPU). The conventional pump substantially comprises a driver and a motor driven by the driver to lead coolant to flow to a heat-conductive block that is in contact with the computer component. Accordingly, the heat generated by the computer component can be transferred to a coolant source to cool down the computer component. After the heated coolant is cooled down, the coolant can be used in recycle.

The driver of the conventional pump comprises a control circuit board for driving the motor to rotate via an outer power source. However, the space in the pump for holding the driver and motor inside is limited, so coolant flowing over the circuit board is also limited. Thus, the heat-conductive effect applied to the circuit board is limited, and the operation efficient of the pump is also limited. With the motor being mounted in a limited space in the pump, the recycling volume of the coolant in a unit time is also limited. Accordingly, the heat-dissipation effect of the pump is badly influenced.

To overcome the shortcomings, the present invention tends to provide a dual-chamber pump or obviate the aforementioned problems.

The objective of the present invention is to provide a dual-chamber pump to improve the heat-dissipation effect of the pump and to increase the recycling volume of the coolant in a unit time.

To achieve the objective, the present invention provides a pump having a housing, a driving assembly, a recycling assembly, a guiding assembly, and a heat-dissipating assembly. The housing has a driving chamber adapted for containing non-conductive liquid inside and having a top opening, a recycling chamber for containing coolant being adjacent to the driving chamber and having a bottom opening, and a top cap attached to a top of the housing to close the top opening of the driving chamber. The driving assembly is held in the driving chamber. The cycling assembly is held in the recycling chamber. The guiding assembly is held in the recycling chamber. The heat-dissipating assembly is attached to a bottom of the housing to close the bottom opening of the recycling chamber.

Wherein, the recycling assembly is driven by the driving assembly to rotate and is adapted for leading the coolant to flowing into the recycling chamber via the guiding assembly.

Wherein, the driving assembly has a control circuit board and a stator having multiple iron core coils arranged in a circle on a bottom of the control circuit board. The control circuit board is adapted to be connected electrically to an outside electrically power source to make the iron core coils generate alternating magnetic field for driving the recycling assembly to rotate.

Wherein, the recycling assembly has a central axle and a rotating member having a center connected to the central axle and comprising a rotator and a blade wheel formed as a single part with the rotator. Multiple through holes are defined through the blade wheel.

Wherein, the rotator is a hollow collar having multiple magnetic poles arranged in annular corresponding radially to the stator and driven to rotate by the alternating magnetic field generated by the stator.

Wherein, the blade wheel comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel. Each blade is curved.

Wherein, the through holes in the blade wheel are located at gaps between the blades.

Wherein, the guiding assembly has a guiding cover, a guiding board attached to a bottom of the guiding cover, and a guiding channel defined in the guiding cover and the guiding board to lead the coolant to the heat-dissipating assembly. Wherein, the heat-dissipating assembly comprises a bottom board attached to the bottom of the housing and a heat-dissipating block mounted on the bottom board.

Wherein, the housing has an inlet communicating with the recycling chamber and an outlet communicating with the recycling chamber.

The present invention is related to a dual-chamber pump, with reference to,, and, the pump in accordance with the present invention comprises a housing, a driving assembly, a recycling assembly, a guiding assembly, and a heat-dissipating assembly.

The housingis hollow and comprises a driving chamberand a recycling chamber. The recycling chamberis adjacent to the driving chamberand can be communicated with or not communicated with the driving chamber. In the present embodiment, the recycling chamberdoes not communicated with the driving chamber.

The driving chamberhas a top opening, and a top capis attached to a top of the housing to close the top opening. The driving chambercontains non-conductive liquid inside to assist the driving assembly to dissipate heat.

The recycling chamberhas a bottom openingand contains coolant, and the heat-dissipating assemblyis attached to a bottom of the housingto close the bottom opening. In addition, the housinghas an inletand an outlet. The heat-dissipating assemblyis attached to an outer heat source, such that heat generated by the outer heat source can be dissipated via the coolant.

The inletand the outletare connected to a coolant source and both communicate with the recycling chamber. In use, coolant is led into the recycling chamberfrom the coolant source via the inlet, and the heated coolant can be discharged to the outer source via the outlet.

In practice, a wall is formed between the driving chamberand the recycling chamber. A stubis rotatably mounted on and protrudes from the wall and is rotatable relative to the driving assembly. In addition, the recycling assemblyis driven to rotate by the driving assembly in a non-contact manner.

With reference to, the driving assemblyis held in the driving chamberand comprises a circuit boardand a stator. The statoris mounted on a bottom of the circuit boardand has multiple iron core coilsarranged in annular and around the stubto form a circuit with the circuit board. The circuit boardleads electrically power to the iron core coilfrom an outside electrically power source to generate alternating magnetic field by the iron core coils and to drive the recycling assemblyto rotate.

The recycling assemblyis held in the recycling chamberand comprises a central axleand rotating member. The central axleis connected securely to the stub. The rotating memberhas a center connected to the bottom of the central axleand is rotated with the central axle. The rotating memberis driven by the driving assemblyto rotate at the central axleas a center. The rotating membercomprises a rotatorand a blade wheel. The rotatorand the blade wheelare formed as a single part with injection mold. The rotatoris a hollow collar and has multiple magnetic poles arranged in annular corresponding radially to the statorand driven to rotate by the alternating magnetic field generated by the stator. The blade wheelis connected with the bottom of the central axleand comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel. Each blade may be curved. In addition, multiple through holesare defined longitudinally through the blade wheeland located at gaps between the blades. Accordingly, the coolant can be kept from be accumulated between the central axleand the rotating memberto cause wear of the recycling assemblyand to prevent the useful life of the recycling assembly from being shorten.

With reference to, the guiding assemblyis held in the recycling chamberand is mounted below and spaced from a bottom of the recycling assembly. The rotating membercan lead the coolant to flow into the guiding assemblyquickly. The guiding assemblycomprises a guiding coverand a guiding board. The guiding coverhas multiple guiding holes, an inlet hole, a bottom recess, and an axle recess. The axle recessis defined in a top of the guiding coverand hold rotatably the bottom of the central axleinside. The guiding holesare defined through the guiding coverand arranged in annular around the axle recessand correspond to the gaps between the blades in position. The inlet holeis defined through the guiding cover. The bottom recessis defined in a bottom of the guiding cover. The guiding boardis held in the bottom recessin the guiding coverand has a guiding recessand a guiding groove. The guiding recessis defined in the top of the guiding boardat a position corresponding to the guiding holes. The guiding grooveis defined in the edge of the guiding board. Accordingly, the inlet holeand the guiding groovecan formed as a guiding channel to lead the heated coolant to flow to the guiding groovevia the guiding recessfrom the heat-dissipating assembly.

The heat-dissipating assemblyis attached to the bottom of the housingand comprises a bottom boardand a heat-dissipating block. The bottom boardis attached to the bottom of the housingand closes the bottom openingof the recycling chamber. The heat-dissipating blockmay be a metal block, is mounted on the top of the bottom board, and is held in the recycling chamber. When the coolant is led to flow over the bottom boardvia the guiding recess, the heat generated by an outer heat source can be transferred to the coolant via the bottom boardand the heat-dissipating block.

In use, the coolant is led into the recycling chambervia the inlet, and is led to flow over the heat-dissipating assemblyvia the guiding recess. In addition, the rotatoris driven to rotate by the statorthe driving assembly, such that the recycling assemblyis driven to rotate relative to the driving assembly. After the coolant flowing over the heat-dissipating assemblyand being heated, the heated coolant flows upward from the guiding recessto the guiding holesand is discharged from the outletto the coolant source. After the heated coolant being cooling down, the coolant can be used in recycle.

With such an arrangement, the dual-chamber pump has the following advantages.

Even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.