Dual-chamber pump

Abstract

A pump has 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.

Description

FIELD OF INVENTION

[0001] The present invention relates to a pump, particularly to a dual-chamber pump.BACKGROUND OF THE INVENTION

[0002] 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.

[0003] 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.

[0004] To overcome the shortcomings, the present invention tends to provide a dual-chamber pump or obviate the aforementioned problems.SUMMARY OF THE INVENTION

[0005] 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Wherein, the through holes in the blade wheel are located at gaps between the blades.

[0013] 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.

[0014] Wherein, the housing has an inlet communicating with the recycling chamber and an outlet communicating with the recycling chamber.BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a perspective view of a pump in accordance with the present invention;

[0016] FIG. 2 is a cross sectional side view of the pump in FIG. 1;

[0017] FIG. 3 is an exploded perspective view of pump in FIG. 1;

[0018] FIG. 4 is an enlarged exploded perspective view of a driving assembly and a recycling assembly of the pump in FIG. 3; and

[0019] FIG. 5 is an enlarged exploded perspective view of a guiding assembly of the pump in FIG. 3.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The present invention is related to a dual-chamber pump, with reference to FIG. 1, FIG. 2, and FIG. 3, the pump in accordance with the present invention comprises a housing 10, a driving assembly 20, a recycling assembly 30, a guiding assembly 40, and a heat-dissipating assembly 50.

[0021] The housing 10 is hollow and comprises a driving chamber 11 and a recycling chamber 12. The recycling chamber 12 is adjacent to the driving chamber 11 and can be communicated with or not communicated with the driving chamber 11. In the present embodiment, the recycling chamber 12 does not communicated with the driving chamber 11.

[0022] The driving chamber 11 has a top opening 111, and a top cap 112 is attached to a top of the housing to close the top opening 111. The driving chamber 11 contains non-conductive liquid inside to assist the driving assembly to dissipate heat.

[0023] The recycling chamber 12 has a bottom opening 121 and contains coolant, and the heat-dissipating assembly 50 is attached to a bottom of the housing 10 to close the bottom opening 121. In addition, the housing 10 has an inlet 123 and an outlet 124. The heat-dissipating assembly 50 is attached to an outer heat source, such that heat generated by the outer heat source can be dissipated via the coolant.

[0024] The inlet 123 and the outlet 124 are connected to a coolant source and both communicate with the recycling chamber 12. In use, coolant is led into the recycling chamber 12 from the coolant source via the inlet 123, and the heated coolant can be discharged to the outer source via the outlet 124.

[0025] In practice, a wall is formed between the driving chamber 11 and the recycling chamber 12. A stub 122 is rotatably mounted on and protrudes from the wall and is rotatable relative to the driving assembly 20. In addition, the recycling assembly 30 is driven to rotate by the driving assembly in a non-contact manner.

[0026] With reference to FIG. 4, the driving assembly 20 is held in the driving chamber 11 and comprises a circuit board 22 and a stator 21. The stator 21 is mounted on a bottom of the circuit board 22 and has multiple iron core coils 211 arranged in annular and around the stub 122 to form a circuit with the circuit board 22. The circuit board 22 leads electrically power to the iron core coil 211 from an outside electrically power source to generate alternating magnetic field by the iron core coils and to drive the recycling assembly 20 to rotate.

[0027] The recycling assembly 30 is held in the recycling chamber 12 and comprises a central axle 32 and rotating member 31. The central axle 32 is connected securely to the stub 122. The rotating member 31 has a center connected to the bottom of the central axle 32 and is rotated with the central axle 32. The rotating member 31 is driven by the driving assembly 20 to rotate at the central axle 32 as a center. The rotating member 31 comprises a rotator 311 and a blade wheel 312. The rotator 311 and the blade wheel 312 are formed as a single part with injection mold. The rotator 311 is a hollow collar and has multiple magnetic poles arranged in annular corresponding radially to the stator 21 and driven to rotate by the alternating magnetic field generated by the stator 21. The blade wheel 312 is connected with the bottom of the central axle 32 and comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel 32. Each blade may be curved. In addition, multiple through holes 313 are defined longitudinally through the blade wheel 312 and located at gaps between the blades. Accordingly, the coolant can be kept from be accumulated between the central axle 32 and the rotating member 31 to cause wear of the recycling assembly 30 and to prevent the useful life of the recycling assembly from being shorten.

[0028] With reference to FIGS. 3 and 5, the guiding assembly 40 is held in the recycling chamber 12 and is mounted below and spaced from a bottom of the recycling assembly 30. The rotating member 31 can lead the coolant to flow into the guiding assembly 40 quickly. The guiding assembly 40 comprises a guiding cover 41 and a guiding board 42. The guiding cover 41 has multiple guiding holes 411, an inlet hole 412, a bottom recess 413, and an axle recess 414. The axle recess 414 is defined in a top of the guiding cover 41 and hold rotatably the bottom of the central axle 32 inside. The guiding holes 411 are defined through the guiding cover 41 and arranged in annular around the axle recess 414 and correspond to the gaps between the blades in position. The inlet hole 412 is defined through the guiding cover 41. The bottom recess 413 is defined in a bottom of the guiding cover 41. The guiding board 42 is held in the bottom recess 413 in the guiding cover 41 and has a guiding recess 421 and a guiding groove 422. The guiding recess 421 is defined in the top of the guiding board 42 at a position corresponding to the guiding holes 411. The guiding groove 422 is defined in the edge of the guiding board 42. Accordingly, the inlet hole 412 and the guiding groove 422 can formed as a guiding channel to lead the heated coolant to flow to the guiding groove 422 via the guiding recess 421 from the heat-dissipating assembly 50.

[0029] The heat-dissipating assembly 50 is attached to the bottom of the housing 10 and comprises a bottom board 51 and a heat-dissipating block 52. The bottom board 51 is attached to the bottom of the housing 10 and closes the bottom opening 121 of the recycling chamber 12. The heat-dissipating block 52 may be a metal block, is mounted on the top of the bottom board 51, and is held in the recycling chamber 12. When the coolant is led to flow over the bottom board 51 via the guiding recess 421, the heat generated by an outer heat source can be transferred to the coolant via the bottom board 51 and the heat-dissipating block 52.

[0030] In use, the coolant is led into the recycling chamber 12 via the inlet 123, and is led to flow over the heat-dissipating assembly 50 via the guiding recess 412. In addition, the rotator 311 is driven to rotate by the stator 21 the driving assembly 20, such that the recycling assembly 30 is driven to rotate relative to the driving assembly 20. After the coolant flowing over the heat-dissipating assembly 50 and being heated, the heated coolant flows upward from the guiding recess 421 to the guiding holes 411 and is discharged from the outlet 124 to the coolant source. After the heated coolant being cooling down, the coolant can be used in recycle.

[0031] With such an arrangement, the dual-chamber pump has the following advantages.

[0032] 1. With the dual-chamber design, non-conductive liquid can be filled with the driving chamber 11 to provide a heat-dissipating effect to the driving assembly 20. In addition, with the detachably top cap 112 and the bottom board 51, the components of the pump in accordance with the present invention can be assembled or detached conveniently.

[0033] 2. Because the driving chamber 11 and the recycling chamber 12 are individual chambers, the thickness of the blades of the rotating member 31 can be increased, the recycling volume of the coolant can be increased to improve the heat-dissipating effect of the pump. In addition, with the thicken blades, the rotating member 31 can be easily remolded during the mold injecting process.

[0034] 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.

Examples

Embodiment Construction

[0020]The present invention is related to a dual-chamber pump, with reference to FIG. 1, FIG. 2, and FIG. 3, the pump in accordance with the present invention comprises a housing 10, a driving assembly 20, a recycling assembly 30, a guiding assembly 40, and a heat-dissipating assembly 50.

[0021]The housing 10 is hollow and comprises a driving chamber 11 and a recycling chamber 12. The recycling chamber 12 is adjacent to the driving chamber 11 and can be communicated with or not communicated with the driving chamber 11. In the present embodiment, the recycling chamber 12 does not communicated with the driving chamber 11.

[0022]The driving chamber 11 has a top opening 111, and a top cap 112 is attached to a top of the housing to close the top opening 111. The driving chamber 11 contains non-conductive liquid inside to assist the driving assembly to dissipate heat.

[0023]The recycling chamber 12 has a bottom opening 121 and contains coolant, and the heat-dissipating assembly 50 is attache...

FIELD OF INVENTION

[0001] The present invention relates to a pump, particularly to a dual-chamber pump.BACKGROUND OF THE INVENTION

[0002] 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.

[0003] 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.

[0004] To overcome the shortcomings, the present invention tends to provide a dual-chamber pump or obviate the aforementioned problems.SUMMARY OF THE INVENTION

[0005] 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.

[0006] 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.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] Wherein, the through holes in the blade wheel are located at gaps between the blades.

[0013] 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.

[0014] Wherein, the housing has an inlet communicating with the recycling chamber and an outlet communicating with the recycling chamber.BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 is a perspective view of a pump in accordance with the present invention;

[0016] FIG. 2 is a cross sectional side view of the pump in FIG. 1;

[0017] FIG. 3 is an exploded perspective view of pump in FIG. 1;

[0018] FIG. 4 is an enlarged exploded perspective view of a driving assembly and a recycling assembly of the pump in FIG. 3; and

[0019] FIG. 5 is an enlarged exploded perspective view of a guiding assembly of the pump in FIG. 3.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The present invention is related to a dual-chamber pump, with reference to FIG. 1, FIG. 2, and FIG. 3, the pump in accordance with the present invention comprises a housing 10, a driving assembly 20, a recycling assembly 30, a guiding assembly 40, and a heat-dissipating assembly 50.

[0021] The housing 10 is hollow and comprises a driving chamber 11 and a recycling chamber 12. The recycling chamber 12 is adjacent to the driving chamber 11 and can be communicated with or not communicated with the driving chamber 11. In the present embodiment, the recycling chamber 12 does not communicated with the driving chamber 11.

[0022] The driving chamber 11 has a top opening 111, and a top cap 112 is attached to a top of the housing to close the top opening 111. The driving chamber 11 contains non-conductive liquid inside to assist the driving assembly to dissipate heat.

[0023] The recycling chamber 12 has a bottom opening 121 and contains coolant, and the heat-dissipating assembly 50 is attached to a bottom of the housing 10 to close the bottom opening 121. In addition, the housing 10 has an inlet 123 and an outlet 124. The heat-dissipating assembly 50 is attached to an outer heat source, such that heat generated by the outer heat source can be dissipated via the coolant.

[0024] The inlet 123 and the outlet 124 are connected to a coolant source and both communicate with the recycling chamber 12. In use, coolant is led into the recycling chamber 12 from the coolant source via the inlet 123, and the heated coolant can be discharged to the outer source via the outlet 124.

[0025] In practice, a wall is formed between the driving chamber 11 and the recycling chamber 12. A stub 122 is rotatably mounted on and protrudes from the wall and is rotatable relative to the driving assembly 20. In addition, the recycling assembly 30 is driven to rotate by the driving assembly in a non-contact manner.

[0026] With reference to FIG. 4, the driving assembly 20 is held in the driving chamber 11 and comprises a circuit board 22 and a stator 21. The stator 21 is mounted on a bottom of the circuit board 22 and has multiple iron core coils 211 arranged in annular and around the stub 122 to form a circuit with the circuit board 22. The circuit board 22 leads electrically power to the iron core coil 211 from an outside electrically power source to generate alternating magnetic field by the iron core coils and to drive the recycling assembly 20 to rotate.

[0027] The recycling assembly 30 is held in the recycling chamber 12 and comprises a central axle 32 and rotating member 31. The central axle 32 is connected securely to the stub 122. The rotating member 31 has a center connected to the bottom of the central axle 32 and is rotated with the central axle 32. The rotating member 31 is driven by the driving assembly 20 to rotate at the central axle 32 as a center. The rotating member 31 comprises a rotator 311 and a blade wheel 312. The rotator 311 and the blade wheel 312 are formed as a single part with injection mold. The rotator 311 is a hollow collar and has multiple magnetic poles arranged in annular corresponding radially to the stator 21 and driven to rotate by the alternating magnetic field generated by the stator 21. The blade wheel 312 is connected with the bottom of the central axle 32 and comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel 32. Each blade may be curved. In addition, multiple through holes 313 are defined longitudinally through the blade wheel 312 and located at gaps between the blades. Accordingly, the coolant can be kept from be accumulated between the central axle 32 and the rotating member 31 to cause wear of the recycling assembly 30 and to prevent the useful life of the recycling assembly from being shorten.

[0028] With reference to FIGS. 3 and 5, the guiding assembly 40 is held in the recycling chamber 12 and is mounted below and spaced from a bottom of the recycling assembly 30. The rotating member 31 can lead the coolant to flow into the guiding assembly 40 quickly. The guiding assembly 40 comprises a guiding cover 41 and a guiding board 42. The guiding cover 41 has multiple guiding holes 411, an inlet hole 412, a bottom recess 413, and an axle recess 414. The axle recess 414 is defined in a top of the guiding cover 41 and hold rotatably the bottom of the central axle 32 inside. The guiding holes 411 are defined through the guiding cover 41 and arranged in annular around the axle recess 414 and correspond to the gaps between the blades in position. The inlet hole 412 is defined through the guiding cover 41. The bottom recess 413 is defined in a bottom of the guiding cover 41. The guiding board 42 is held in the bottom recess 413 in the guiding cover 41 and has a guiding recess 421 and a guiding groove 422. The guiding recess 421 is defined in the top of the guiding board 42 at a position corresponding to the guiding holes 411. The guiding groove 422 is defined in the edge of the guiding board 42. Accordingly, the inlet hole 412 and the guiding groove 422 can formed as a guiding channel to lead the heated coolant to flow to the guiding groove 422 via the guiding recess 421 from the heat-dissipating assembly 50.

[0029] The heat-dissipating assembly 50 is attached to the bottom of the housing 10 and comprises a bottom board 51 and a heat-dissipating block 52. The bottom board 51 is attached to the bottom of the housing 10 and closes the bottom opening 121 of the recycling chamber 12. The heat-dissipating block 52 may be a metal block, is mounted on the top of the bottom board 51, and is held in the recycling chamber 12. When the coolant is led to flow over the bottom board 51 via the guiding recess 421, the heat generated by an outer heat source can be transferred to the coolant via the bottom board 51 and the heat-dissipating block 52.

[0030] In use, the coolant is led into the recycling chamber 12 via the inlet 123, and is led to flow over the heat-dissipating assembly 50 via the guiding recess 412. In addition, the rotator 311 is driven to rotate by the stator 21 the driving assembly 20, such that the recycling assembly 30 is driven to rotate relative to the driving assembly 20. After the coolant flowing over the heat-dissipating assembly 50 and being heated, the heated coolant flows upward from the guiding recess 421 to the guiding holes 411 and is discharged from the outlet 124 to the coolant source. After the heated coolant being cooling down, the coolant can be used in recycle.

[0031] With such an arrangement, the dual-chamber pump has the following advantages.

[0032] 1. With the dual-chamber design, non-conductive liquid can be filled with the driving chamber 11 to provide a heat-dissipating effect to the driving assembly 20. In addition, with the detachably top cap 112 and the bottom board 51, the components of the pump in accordance with the present invention can be assembled or detached conveniently.

[0033] 2. Because the driving chamber 11 and the recycling chamber 12 are individual chambers, the thickness of the blades of the rotating member 31 can be increased, the recycling volume of the coolant can be increased to improve the heat-dissipating effect of the pump. In addition, with the thicken blades, the rotating member 31 can be easily remolded during the mold injecting process.

[0034] 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.

Examples

Embodiment Construction

[0020]The present invention is related to a dual-chamber pump, with reference to FIG. 1, FIG. 2, and FIG. 3, the pump in accordance with the present invention comprises a housing 10, a driving assembly 20, a recycling assembly 30, a guiding assembly 40, and a heat-dissipating assembly 50.

[0021]The housing 10 is hollow and comprises a driving chamber 11 and a recycling chamber 12. The recycling chamber 12 is adjacent to the driving chamber 11 and can be communicated with or not communicated with the driving chamber 11. In the present embodiment, the recycling chamber 12 does not communicated with the driving chamber 11.

[0022]The driving chamber 11 has a top opening 111, and a top cap 112 is attached to a top of the housing to close the top opening 111. The driving chamber 11 contains non-conductive liquid inside to assist the driving assembly to dissipate heat.

[0023]The recycling chamber 12 has a bottom opening 121 and contains coolant, and the heat-dissipating assembly 50 is attache...

Claims

1. A pump comprising:a housing comprising a driving chamber 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, wherein the non-conductive liquid is filled with the driving chamber;a driving assembly held in the driving chamber;a cycling assembly held in the recycling chamber;a guiding assembly held in the recycling chamber; anda heat-dissipating assembly attached to a bottom of the housing to close the bottom opening of the recycling chamber.

2. The pump as claimed in claim 1, 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.

3. The pump as claimed in claim 2, wherein the driving assembly comprisesa control circuit board; anda stator having multiple iron core coils arranged in a circle on a bottom of the control circuit board; andthe control circuit board is adapted to be connected electrically to an outside electrical power source to make the iron core coils generate alternating magnetic field for driving the recycling assembly to rotate.

4. The pump as claimed in claim 3, wherein the recycling assembly comprisesa central axle; anda 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; andmultiple through holes are defined through the blade wheel.

5. The pump as claimed in claim 4, wherein the rotator is a hollow collar having multiple magnetic poles arranged in annularly corresponding radially to the stator and driven to rotate by the alternating magnetic field generated by the stator.

6. The pump as claimed in claim 5, wherein the blade wheel comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel; andeach blade is curved.

7. The pump as claimed in claim 6, wherein the through holes in the blade wheel are located at gaps between the blades.

8. The pump as claimed in claim 7, wherein the guiding assembly comprisesa guiding cover;a guiding board attached to a bottom of the guiding cover; anda guiding channel defined in the guiding cover and the guiding board to lead the coolant to the heat-dissipating assembly.

9. The pump as claimed in claim 8, 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.

10. The pump as claimed in claim 9, wherein the housing has an inlet communicating with the recycling chamber and an outlet communicating with the recycling chamber.

11. The pump as claimed in claim 1, wherein the driving assembly comprisesa control circuit board; anda stator having multiple iron core coils arranged in a circle on a bottom of the control circuit board; andthe control circuit board is adapted to be connected electrically to an outside electrical source to make the iron core coils generate alternating magnetic field for driving the recycling assembly to rotate.

12. The pump as claimed in claim 11, wherein the recycling assembly comprisesa central axle; anda 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; andmultiple through holes are defined through the blade wheel.

13. The pump as claimed in claim 12, wherein the rotator is a hollow collar having multiple magnetic poles arranged in annularly corresponding radially to the stator and driven to rotate by the alternating magnetic field generated by the stator.

14. The pump as claimed in claim 13, wherein the blade wheel comprises multiple blades formed on and protruding from and being arranged radially on a bottom of the blade wheel; andeach blade is curved.

15. The pump as claimed in claim 14, wherein the through holes in the blade wheel are located at gaps between the blades.

16. The pump as claimed in claim 15, wherein the guiding assembly comprisesa guiding cover;a guiding board attached to a bottom of the guiding cover; anda guiding channel defined in the guiding cover and the guiding board to lead the coolant to the heat-dissipating assembly.

17. The pump as claimed in claim 16, 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.

18. The pump as claimed in claim 17, wherein the housing has an inlet communicating with the recycling chamber and an outlet communicating with the recycling chamber.

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