TWM531608U - Water cooling equipment - Google Patents

Description

Water cooling device

The present invention relates to a water-cooling device, and more particularly to a water-cooling device having a reduced thickness.

According to the increasing computing power of electronic devices, the electronic components installed in the internal device generate a large amount of heat during operation, and it is usually necessary to provide a heat sink or a heat dissipating fin on the electronic component to increase the heat dissipation area and thereby improve the heat dissipation performance, but The heat dissipation effect achieved by the heat sink and the heat sink fins is limited. Therefore, the current conventional technology has adopted a water cooling device as a solution for enhancing the heat dissipation performance.

The conventional water-cooling device can exchange heat absorbed by the heating element (processor or graphics processor) with a cooling liquid inside the water-cooling device, and then circulates the cooling liquid through a pump inside the water-cooling device, and the water is cooled. The device is connected to a heat sink through a plurality of tubes, so that the cooling liquid can be heat-dissipated and cooled between the heat sink and the water-cooling device, thereby rapidly dissipating heat to the heat-generating components.

In the prior art, in order to prevent the pumped stator assembly from being damaged by receiving the liquid, the stator assembly is disposed on the outer side of the water cooling device, and the rotor assembly for guiding the cooling fluid to circulate in the water cooling device is disposed on The inside of the chamber of the water-cooling device runs between the two through the outer casing of the water-cooling device to generate excitation, and since the outer casing of the water-cooling device must take into consideration the strength of the structure itself, it has a certain thickness, so the rotor assembly and the stator Between the components, the operating efficiency of the pump is affected by the distance between the thicknesses of the water-cooling modules, which affects the overall heat dissipation performance of the water-cooling module and the excessive volume of the overall water-cooling device.

Accordingly, in order to effectively solve the above problems, it is an object of the present invention to provide a water-cooling device that achieves a thinning effect.

Another object of the present invention is to provide a water cooling device which can reduce the thickness spacing between the stator and the corresponding rotor and reduce the overall volume.

Another object of the present invention is to provide a first inclined surface through a water flow passage, and a second inclined surface on an inner wall of an adjacent heat exchange chamber, and the first and second inclined surfaces are at a high level. Poor, whereby a slow-flow effect can be achieved, as well as a water-cooling device that avoids eddy currents (or flocculation).

In order to achieve the above object, the present invention provides a water-cooling device comprising a liquid storage casing and a pump, the liquid storage casing having a liquid chamber, an inlet and an outlet, the liquid chamber communicating with the inlet and the outlet for Providing a cooling liquid therethrough, the pump is for circulating the cooling liquid, comprising a stator and a rotor, the stator having a coil set on a circuit board and electrically connected to each other, the circuit board and the circuit board The coil set is disposed on at least one inner wall of the liquid chamber or integrally formed in the liquid storage housing, and the circuit board is separated from the cooling liquid by the coil group, and the rotor is connected to the opposite connection The device is disposed in the liquid chamber and exposed to the cooling liquid, and the pusher is provided with blades made of a plurality of metal materials, each of the blades having at least one magnetic pole region filled from a position of the blade relative to the coil assembly Magnetically formed, and the magnetic pole regions of each of the blades are inductively excited with respect to the coil assembly.

In one implementation, an upper edge portion or a lower edge portion of each blade is axially magnetized to form the magnetic pole region, and a protective film covers the circuit board and the outer side of the coil assembly, and is coated with the protective film or coating film. The circuit board is disposed together with the coil assembly on an inner wall top side or an inner wall bottom side of the liquid chamber, and corresponds to a magnetic pole region of the blade.

In one implementation, a leading edge portion of each blade is radially magnetized to form the magnetic pole region, and the circuit board covered with the protective film is disposed on the inner peripheral side of the inner wall of the liquid chamber together with the coil assembly And corresponding to the magnetic pole region of the blade.

In one implementation, the circuit board is integrally formed with the coil assembly in a top or a bottom of the liquid storage housing, and corresponds to a magnetic pole region of the blade, and the circuit board and the stator are located outside the liquid chamber. And the liquid storage housing blocks the isolation of the cooling liquid from contacting the stator and the circuit board.

In one implementation, the circuit board is integrally formed with the coil assembly in a peripheral portion of one side of the liquid storage housing, and corresponds to a magnetic pole region of a leading edge portion of the blade, and the circuit board and the stator are located in the liquid Outdoor, and the liquid storage housing blocks isolation of the cooling liquid from contacting the stator and the circuit board.

In one implementation, the rotor has an axial center, one end of the shaft is connected to the pusher, and the other end is axially disposed on an inner wall of the liquid chamber, and the inlet and the outlet are respectively disposed in the liquid storage shell On both sides.

In one implementation, the water cooling device further includes a heat exchange element coupled to the liquid storage housing, and the heat exchange element has a thermal contact surface and a heat exchange surface, the heat exchange surface and the liquid chamber The contact of the cooling liquid.

In one implementation, the water cooling device further includes a heat exchange element coupled to the liquid storage housing, the liquid storage housing further having a spacer portion, at least a consistent hole, and a water flow channel, the spacer portion being formed at a central portion of the liquid storage housing, and the liquid storage chamber and the heat exchange element together define the liquid chamber and a heat exchange chamber communicating with the outlet, the through hole opening the spacing portion and communicating with the inlet and The liquid chamber is located above the heat exchange chamber, and the water flow passage is disposed between the liquid chamber and a circumferential side of the liquid chamber wall and penetrates the partition portion to communicate with the heat exchange chamber.

In one implementation, the water flow channel has a first inclined surface, and the first inclined surface is formed by extending downward from the bottom side of the water flow channel located in the liquid chamber toward the partition portion, and the heat exchange chamber is opposite to The inner wall of the water flow channel has a second inclined surface adjacent to the first inclined surface.

1‧‧‧Water cooling unit

10‧‧‧Liquid housing

101‧‧‧Liquid room

102‧‧‧ entrance

103‧‧‧Export

104‧‧‧Interval

1041‧‧‧through hole

1042‧‧‧ Guide channel

105‧‧‧Top cover

106‧‧‧ bottom cover

107‧‧‧Water flow channel

1071‧‧‧First inclined surface

109‧‧‧Washers

20‧‧‧ pump

201‧‧‧ Stator

2011‧‧‧ coil group

202‧‧‧Rotor

2021‧‧‧Axis

203‧‧‧ Pusher

2031‧‧‧ blades

2032‧‧‧Top edge

2033‧‧‧The lower edge

2034‧‧‧ Front edge

204‧‧‧Magnetic pole area

30‧‧‧ boards

31‧‧‧Protective film

40‧‧‧Heat exchange components

401‧‧‧Hot contact surface

402‧‧‧Hot exchange surface

403‧‧‧Heat exchange chamber

404‧‧‧Heat fins

405‧‧‧Second inclined surface

5‧‧‧heatsink

51‧‧‧ flexible tube

6‧‧‧Fan

7‧‧‧heating components

Figure 1 is an exploded perspective view of the first embodiment of the present invention.

Fig. 2 is a perspective assembled view of the first embodiment of the creation.

Fig. 2A is a cross-sectional view showing the first embodiment of the creation.

Fig. 2B is an enlarged partial cross-sectional view showing the first embodiment of the creation.

Figure 3A is a cross-sectional view showing one embodiment of the first embodiment of the creation.

Figure 3B is a cross-sectional view showing another embodiment of the first embodiment of the creation.

Figure 4A is a cross-sectional view showing another embodiment of the first embodiment of the present invention.

Figure 4B is a cross-sectional view showing another embodiment of the first embodiment of the creation.

Figure 4C is a cross-sectional view showing another embodiment of the first embodiment of the creation.

Fig. 5A is an exploded perspective view showing the second embodiment of the creation.

Figure 5B is a cross-sectional view showing a second embodiment of the creation.

Figure 6 is a view showing an embodiment of the second embodiment of the creation.

Figure 7 is a perspective exploded view of the third embodiment of the creation.

Fig. 8A is a perspective assembled view of the third embodiment of the present invention.

Figure 8B is a cross-sectional view showing a third embodiment of the present invention.

Figure 8C is a cross-sectional view showing another embodiment of the third embodiment of the present invention.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

The present invention provides a water-cooling device. Please refer to Figures 1, 2, and 2A for a perspective exploded view, a combination, and a cross-sectional view of the first embodiment of the present invention. The water-cooling device 1 includes a liquid storage casing 10 and a pump 20, and the liquid storage casing 10 is made of a plastic material, and the liquid storage casing 10 has a liquid chamber 101, an inlet 102, and an outlet 103. And a bottom cover 106, the bottom end of the liquid storage housing 10 is abutted against an end surface of the bottom cover 106 to seal the liquid chamber 101, the liquid chamber 101 is connected to the inlet 102 and the outlet 103, and the liquid chamber 101 is used for A cooling liquid is passed therethrough, and the inlet 102 and the outlet 103 are respectively disposed on both sides of the liquid storage casing 10. The bottom cover 106 and the liquid storage case 10 have a gasket 109 for increasing the bonding density between the liquid storage case 10 and the bottom cover 106 to prevent leakage of the cooling liquid in the liquid chamber 101. The bottom cover 106 is a part of the liquid storage shell 10 itself, and the connection manner of the two is described in the manner of engagement, but is not limited thereto. In specific implementation, the bottom cover 106 may also be selected as a glued or screwed lock. Combination method.

The pump 20 is used to circulate the cooling liquid. The pump 20 includes a stator 201 and a rotor 202 and a pusher 203. The stator 201 has a coil set 2011. The coil set 2011 is shown in this embodiment. Wiring or etching or printing is formed on one side of a circuit board 30, and the coil group 2011 is disposed on one side of the circuit board 30 and electrically connected to each other. In a specific implementation, the coil group 2011 may be formed on one side of the circuit board 30 in a stacked manner, or the coil group 2011 may be disposed on one side of the circuit board 30. And the circuit board 30 and the coil assembly 2011 thereon are disposed on at least one inner wall surface of the liquid chamber 101 in this embodiment, and the circuit board 30 is separated from the coil group 2011 by the cooling liquid. The circuit board 30 and the outer side of the coil assembly 2011 are covered with a protective film 31 (or a coating film), and the protective film 31 (or coating film) blocks the cooling liquid from contacting the stator 201 and the circuit board 30. In the second and second embodiments of the present embodiment, the circuit board 30 covered with the protective film 31 is placed in close contact with the coil group 2011 on the top side of an inner wall in the liquid chamber 101. In an alternative embodiment, as shown in FIG. 3A, the circuit board 30 covered with the protective film 31 is placed in close contact with the coil assembly 2011 on the bottom side of an inner wall in the liquid chamber 101. In an alternative embodiment, such as In FIG. 3B, the circuit board 30 covered with the protective film 31 is placed in close contact with the coil group 2011 on an inner wall side of the liquid chamber 101. The circuit board 30 is a flexible printed circuit board (FPCB) or a printed circuit board 30 (PCB), and the circuit board 30 is electrically connected to a connection line group (not shown). One end of the group is electrically connected to the circuit board 30, and the other end of the liquid storage chamber 101 extends through the liquid storage housing 10 to the outside, so that the other end of the connection line group and a corresponding motherboard (or a power supply) is connected, wherein the other end of the connecting wire group is sealed by the liquid storage chamber 101 through the liquid storage casing 10 to prevent leakage of the cooling liquid in the liquid chamber 101. In an alternative embodiment, one end of the connecting wire group is electrically connected to the circuit board 30, and the remaining portion (ie, a portion between one end and the other end of the connecting wire group) is integrally molded in the liquid storage casing 10 . The other end of the connection line group is exposed outside the liquid storage case 10 and connected to the corresponding main board (or power supply; not shown). In the embodiment, the connection line group is represented as a power line and a control signal line, and the power line is used to supply power to the electronic components and the pump on the circuit board, and the control signal line is used to control the pump operation speed ( Or you can control the pump to turn on or off at the same time).

In addition, the rotor 202 is connected to the pusher 203. The rotor 202 and the pusher 203 are accommodated in the liquid chamber 101 and exposed to the cooling liquid, whereby the rotor 202 corresponds to the stator 201 to drive the rotor 202. The pusher 203 rotates, thereby causing the pusher 203 to disturb the cooling liquid in the liquid chamber 101, and the cooling liquid flowing in from the inlet 102 is driven by the pusher 203 to flow out toward the corresponding outlet 103. The rotor 202 has a shaft center 2021. One end of the shaft core 2021 is connected to the pusher 203, and the other end thereof is axially disposed on the top side of the inner wall of the liquid chamber 101. The pusher 203 is provided with a plurality of blades 2031. The blades 2031 are made of a metal material. Each of the blades 2031 has at least one magnetic pole region 204. The magnetic pole region 204 is from a position of the blade 2031 relative to the coil assembly 2011. The magnetization is formed, that is, the magnetic pole region 204 is formed by axially magnetizing an upper edge portion 2032 of the blade 2031, and the upper edge of each adjacent blade 2031 is formed. The portions 2032 each have a different magnetic pole region 204 (N pole or S pole), and the magnetic pole regions 204 of the upper edge portion 2032 of the vanes 2031 are induced to the coil group 2011 on the top side of the inner wall of the liquid chamber 101. Excitation, thus driving the rotor 202 to rotate.

In an alternative embodiment, as shown in FIG. 3A, the lower edge portion 2033 of the blade 2031 is axially magnetized to form the magnetic pole region 204, and the lower edge portion 2033 of each adjacent blade 2031 has a different magnetic pole region. 204 (N pole or S pole), and the magnetic pole region 204 of the lower edge portion 2033 of the vane 2031 is inductively excited with the coil group 2011 on the bottom side of the inner wall of the liquid chamber 101. In an alternative embodiment, as shown in FIG. 3B, a front edge portion 2034 of the blade 2031 is radially magnetized to form the magnetic pole region 204, and the leading edge portion 2034 of each adjacent blade 2031 has a different magnetic pole. The region 204 (N pole or S pole), and the magnetic pole region 204 of the leading edge portion 2034 of the vane 2031 is inductively excited with the coil group 2011 on the inner peripheral side of the liquid chamber 101.

In an embodiment, the circuit board 30 and the coil assembly 2011 can be integrally formed in the liquid storage casing 10, and the circuit board 30 and the stator 201 are located outside the liquid chamber 101 by liquid storage. The housing 10 blocks isolation of the cooling liquid from contacting the stator 201 and the circuit board 30. That is, as shown in FIG. 4A, the circuit board 30 and the coil assembly 2011 are integrally formed in a top portion (near inner wall surface) of the liquid storage case 10, and the magnetic poles of the upper edge portion 2032 of the blade 2031 are formed. The region 204 is inductively excited with a coil group 2011 corresponding to being wrapped in the top of the liquid storage casing 10. In an embodiment, as shown in FIG. 4B, the circuit board 30 and the coil assembly 2011 are integrally formed in a bottom portion of the liquid storage casing 10, and the magnetic pole regions 204 of the lower edge portion 2033 of the blades 2031 are The coil group 2011 corresponding to the inside of the bottom of the liquid storage casing 10 is induction-excited. In an embodiment, as shown in FIG. 4C, the circuit board 30 and the coil assembly 2011 are integrally formed in one side of the liquid storage casing 10, and the magnetic pole region 204 of the front edge portion 2034 of the blades 2031. The excitation is performed by the coil group 2011 corresponding to the side peripheral portion of the liquid storage case 10. Therefore, the circuit board 30 and the upper coil group 2011 and the liquid storage housing 10 are integrally formed into a structure, so that the stator 201 and the circuit board 30 can be waterproofed and the stator 201 can be protected. In addition to the circuit board 30, it is also possible to effectively reduce (or shorten) the thickness interval between the stator 201 and the rotor 202 to achieve a thinning effect.

The magnetic pole region 204 is formed by magnetizing a position of the blades 2031 (such as the upper edge portion 2032 or the lower edge portion 2033 or the leading edge portion 2034) to correspond to the structure of the upper coil group 2011 of the circuit board 30. The design makes it possible to replace a large magnetic element (such as a magnet) on the conventional rotor 202, thereby omitting the space for placing the conventional magnetic element, thereby reducing the overall volume of the liquid storage case 10 and achieving the effect of thinning.

Please refer to FIGS. 5A and 5B for a perspective exploded view and a cross-sectional view of a second embodiment of the present invention. The structure and the connection relationship of the present embodiment and the functions thereof are substantially the same as those of the first embodiment described above, and therefore will not be further described herein. In this embodiment, the bottom cover 106 of the first embodiment is replaced with a heat exchange element 40 and the liquid storage housing 10, that is, the water cooling device 1 further includes the heat exchange component. 40. One end surface of the heat exchange element 40 is connected to the bottom end of the liquid storage case 10 to seal the liquid chamber 101, and the liquid storage case is inserted between the liquid storage case 10 and the heat exchange element 40 through the gasket 109. The degree of bonding between the body 10 and the heat exchange element 40 prevents leakage of the cooling liquid in the liquid chamber 101. The heat exchange element 40 is made of a highly thermally conductive metal such as aluminum, copper or gold or silver, and has a thermal contact surface 401 and a heat exchange surface 402, and the thermal contact surface 401 is closely attached to the opposite heating element. 7 (such as a central processing unit or a graphics processor), the thermal contact surface 401 is configured to conduct heat generated by the heating element 7 to the heat exchange surface 402, and the heat exchange surface 402 is in the liquid chamber 101. And the heat exchange surface 402 is in contact with the cooling liquid in the liquid chamber 101.

The heat exchange element 40 further includes a plurality of heat dissipation fins 404. The heat dissipation fins 404 are radially arranged at intervals on the heat exchange surface 402, but are not limited thereto. Therefore, the heat dissipating fins 404 are disposed on the heat exchange surface 402 to effectively increase the heat exchange surface 402. In addition, as shown in Figure 6, The water-cooling device 1 is connected to a radiator 5 to form a liquid cooling system. The radiator 5 is connected to and connected to the inlet 102 and the outlet 103 of the water-cooling device 1 through a plurality of flexible tubes 51 to push the liquid chamber 101. The 203 drives the cooling liquid to circulate and dissipate heat in the liquid chamber 101 and the heat sink 5. A fan 6 can be connected to the heat sink 5 to help the heat sink 5 to dissipate heat rapidly.

Therefore, when the heat contact surface 401 of the heat exchange element 40 conducts heat absorbed to the heat generating element 7 to the heat exchange surface 402, the heat exchange surface 402 is exchanged with the cooling liquid in the liquid chamber 101, thereby The cooling liquid carries away the heat on the heat exchange surface 402 and the heat dissipation fins 404 and flows out from the outlet 103 of the liquid storage casing 10, thereby achieving the effect of heat dissipation. Therefore, by the design of the water-cooling device 1 of the present invention, the effect of thinning and reducing the overall volume of the liquid storage casing 10 can be achieved, and the stator 201 can be effectively waterproofed and reduced (or shortened) between the stator 201 and the rotor 202. Thickness spacing.

The circuit board 30 coated with the protective film 31 of the present embodiment is closely attached to the top side of the inner wall of the liquid chamber 101 together with the coil assembly 2011, and the magnetic poles of the front edge portion 2034 of the blades 2031. The region 204 is inductively excited with respect to the upper coil group 2011 on the top side of the inner wall of the liquid chamber 101. In an alternative embodiment, the circuit board 30 covered with the protective film 31 and the coil assembly 2011 are closely attached to the heat exchange surface (ie, the bottom side of the inner wall in the liquid chamber 101), and the blades 2031 The magnetic pole region 204 of the lower edge portion 2033 is inductively excited with the upper coil group 2011 with respect to the bottom side (i.e., heat exchange surface) of the inner wall of the liquid chamber 101. In an alternative embodiment, the circuit board 30 covered with the protective film 31 is in close contact with the coil assembly 2011 on the inner wall side of the liquid chamber 101, and the magnetic poles of the front edge portion 2034 of the blades 2031. The region 204 is inductively excited with respect to the upper coil group 2011 on the inner peripheral side of the liquid chamber 101.

In one embodiment, the circuit board 30 and the coil assembly 2011 are integrally formed in the top of the liquid storage housing 10, and the magnetic pole regions 204 of the upper edge portion 2032 of the blades 2031 are correspondingly wrapped therein. The coil group 2011 in the top of the liquid storage casing 10 is induction-excited. In an embodiment, the circuit board 30 is integrated with the coil assembly 2011. The injection molding is formed in the side peripheral portion of the liquid storage casing 10, and the magnetic pole regions 204 of the leading edge portions 2034 of the blades 2031 are corresponding to the coil group 2011 corresponding to the side peripheral portions of the liquid storage casing 10. Induction excitation.

Please refer to FIG. 7 and FIG. 8A for a perspective exploded view and a combination diagram of the third embodiment of the present invention, together with FIG. 8B. The structure and the connection relationship of the present embodiment and the functions thereof are substantially the same as those of the first embodiment described above, and therefore will not be further described herein. The present embodiment mainly redesigns the water-cooling device 1 of the second embodiment to have the upper and lower chambers (ie, the liquid chamber 101, the heat exchange chamber 403) and the inlet 102 and outlet 103 of the liquid storage housing 10 On a top cover 105. That is, the liquid storage case 10 has a top cover 105, a spacer portion 104, at least a constant hole 1041, and a water flow channel 107. The top end of the liquid storage case 10 abuts an end surface of the top cover 105 to seal the liquid. The chamber 101 and the other gasket 109 are passed between the liquid storage casing 10 and the top cover 105 to increase the degree of bonding between the liquid storage casing 10 and the top cover 105 to prevent leakage of the cooling liquid in the liquid chamber 101.

The spacer portion 104 is formed at the center of the liquid storage case 10. The spacer portion 104 and the liquid storage case 10 and the heat exchange element 40 together define a heat exchange chamber 403 and the liquid chamber 101 is located in the heat exchange. Above the chamber 403, above the partition 104 is a liquid chamber 101 below which is the heat exchange chamber 403. In the present embodiment, the through hole 1041 is defined as a through hole 1041 opened at the center of the spacer 104, and communicates with the inlet 102 and the liquid chamber 101 of the liquid storage case 10. The guiding portion 1042 has a guiding passage 1042 formed inside the spacing portion 104 and located between the liquid chamber 101 and the heat exchange chamber 403. The guiding passage 1042 communicates with the liquid storage housing 10. The inlet 102 and the liquid chamber 101 are used to guide the cooling liquid entering through the inlet 102 through the through hole 1041 into the liquid chamber 101 above. The spacer 104 and the top cover 105 are part of the liquid storage case 10.

The water flow passage 107 is disposed between the liquid chamber 101 and the inner wall side of the liquid chamber 101, and penetrates the partition portion 104 to communicate with the heat exchange chamber 403, that is, as shown in FIG. 7, the water flow passage 107 An arc-shaped water flow passage 107 is formed along the liquid chamber 101 and the inner wall side of the opposite liquid chamber 101, and the water flows. The passage 107 is used to guide the cooling liquid carried by the pusher 203 into the liquid exchange chamber 403, and then the cooling liquid in the heat exchange chamber 403 flows out to the corresponding outlet 103. And the water flow channel 107 has a first inclined surface 1071, and the first inclined surface 1071 is formed by extending downward from the bottom side of the water flow channel 107 in the liquid chamber 101 toward the partition portion 104. The exchange chamber 403 has a second inclined surface 405 opposite to the inner wall of the water flow channel 107. The second inclined surface 405 is adjacently connected to the first inclined surface 1071. The height of the first inclined surface 1071 is higher than that of the first inclined surface 1071. The two inclined faces 405 form a height difference between the first and second inclined faces 1071 and 405. The first inclined surface 1071 and the second inclined surface 405 of the present embodiment are substantially perpendicular, but are not limited thereto.

Therefore, the flow velocity of the cooling liquid in the water flow channel 107 into the heat exchange chamber 403 can be slowed down by the first and second inclined faces 1071, 405 (ie, the first and second inclined faces 1071, 405 are slowed down). The effect of the cooling liquid is also smooth, thereby preventing vortex (or flocculation) of the cooling liquid just entering the heat exchange chamber 403, and reducing the entering of the heat exchange chamber. The cooling liquid in 403 hits the generated bubbles.

The circuit board 30 coated with the protective film 31 of the present embodiment and the coil assembly 2011 are closely attached to the inner side of the top cover 105 of the liquid storage case 10 (ie, the top side of the inner wall of the liquid chamber 101). And the magnetic pole region 204 of the upper edge portion 2032 of the vane 2031 is inductively excited with the upper coil group 2011 opposite to the top side of the inner wall of the liquid chamber 101 (ie, the inner side of the top cover 105 of the liquid storage casing 10). In an alternative embodiment, the circuit board 30 covered with the protective film 31 and the coil assembly 2011 are closely attached to one side of the spacer 104 opposite to the top cover 105 (ie, the bottom side of the inner wall in the liquid chamber 101). The magnetic pole region 204 of the lower edge portion 2033 of the vane 2031 is inductively excited with the upper coil group 2011 on the bottom side of the inner wall of the liquid chamber 101. In an alternative embodiment, the circuit board 30 covered with the protective film 31 is closely attached to the inner wall side of the liquid chamber 101 together with the coil assembly 2011, and The magnetic pole region 204 of the leading edge portion 2034 of the equal blade 2031 is inductively excited with the upper coil group 2011 on the inner peripheral side of the liquid chamber 101.

In an embodiment, as shown in FIG. 8C, the circuit board 30 is integrally formed with the coil assembly 2011 in the top of the liquid storage housing 10 (ie, the top cover 105 of the liquid storage housing 10), and the blades are The magnetic pole region 204 of the upper edge portion 2032 of 2031 is inductively excited with the coil assembly 2011 corresponding to the cover 105 covered in the liquid storage casing 10. In one embodiment, the circuit board 30 and the coil assembly 2011 are integrally formed in the spacer portion 104 of the liquid storage case 10, and the magnetic pole regions 204 of the lower edge portion 2033 of the blades 2031 are correspondingly covered. The coil group 2011 in the spacer 104 of the liquid storage case 10 is induced to be excited.

Therefore, by the design of the water-cooling device 1 of the present invention, the effect of thinning and reducing the overall volume of the liquid storage casing 10 can be achieved, and the stator 201 can be effectively waterproofed and reduced (or shortened) between the stator 201 and the rotor 202. Thickness spacing.

However, the above descriptions are only preferred embodiments of the present invention, and variations of the methods, shapes, structures, and devices described above are intended to be included in the scope of the present invention.

1‧‧‧Water cooling unit

10‧‧‧Liquid housing

101‧‧‧Liquid room

102‧‧‧ entrance

103‧‧‧Export

109‧‧‧Washers

20‧‧‧ pump

201‧‧‧ Stator

2011‧‧‧ coil group

202‧‧‧Rotor

2021‧‧‧Axis

203‧‧‧ Pusher

2031‧‧‧ blades

2032‧‧‧Top edge

2033‧‧‧The lower edge

2034‧‧‧ Front edge

204‧‧‧Magnetic pole area

30‧‧‧ boards

31‧‧‧Protective film

Claims (14)

A water cooling device comprising: a liquid storage casing having a liquid chamber, an inlet and an outlet, the liquid chamber communicating the inlet and the outlet for a cooling liquid to pass therethrough; and a pump for circulating The cooling liquid comprises a stator and a rotor, the stator has a coil set on a circuit board and is electrically connected to each other, and the circuit board and the coil set thereon are selectively disposed on at least one inner wall of the liquid chamber Or integrally formed in the liquid storage casing, and the circuit board and the coil assembly thereon are separated from the cooling liquid, and the rotor and the oppositely connected pusher are accommodated in the liquid chamber and exposed to the cooling liquid. And the pusher is provided with blades made of a plurality of metal materials, each of the blades having at least one magnetic pole region formed by magnetization from a position of the blade relative to the coil assembly, and the magnetic pole region of each blade and the opposite pole The coil set senses excitation. The water-cooling device of claim 1, wherein an upper edge portion or a lower edge portion of each blade is axially magnetized to form the magnetic pole region, and a protective film covers the circuit board and the outer side of the coil assembly. And the circuit board covered with the protective film is disposed on the inner wall top side or the inner wall bottom side of the liquid chamber together with the coil group, and corresponds to the magnetic pole region of the blade. The water-cooling device of claim 1, wherein a front edge portion of each of the blades is radially magnetized to form the magnetic pole region, and a protective film covers the circuit board and the outer side of the coil assembly, and is covered The circuit board having the protective film is provided on the inner peripheral side of the inner wall of the liquid chamber together with the coil group, and corresponds to the magnetic pole region of the blade. The water-cooling device of claim 1, wherein an upper edge portion or a lower edge portion of each of the blades is axially magnetized to form the magnetic pole region, and the circuit board is integrally packaged with the coil assembly. Forming in a top or a bottom of the liquid storage shell, and corresponding to the magnetic pole region of the blade, and the circuit board and the stator are located outside the liquid, and the liquid storage housing blocks the cooling liquid from contacting the stator With the board. The water-cooling device of claim 1, wherein a front edge portion of each of the blades is radially magnetized to form the magnetic pole region, and the circuit board is integrally formed with the coil assembly in the liquid storage casing. In one side of the circumference, and corresponding to the magnetic pole region of the leading edge portion of the blade, and the circuit board and the stator are located outside the liquid chamber, and the liquid storage housing blocks the cooling liquid from contacting the stator and the circuit board. The water-cooling device of claim 1, wherein the rotor has an axial center, one end of the shaft is connected to the pusher, and the other end is axially disposed on an inner wall of the liquid chamber, and the inlet is The outlets are respectively disposed on both sides of the liquid storage casing. The water-cooling device according to claim 1, wherein the water-cooling device further comprises a heat exchange element connected to the liquid storage case, and the heat exchange element has a thermal contact surface and a heat exchange surface. The heat exchange surface is in contact with the cooling liquid in the liquid chamber. The water-cooling device of claim 1, wherein the water-cooling device further comprises a heat exchange element connected to the liquid storage housing, the liquid storage housing further having a spacing portion, at least a consistent hole And a water flow passage formed at a center of the liquid storage casing, and cooperating with the liquid storage casing and the heat exchange element to define the liquid chamber and a heat exchange chamber communicating with the outlet, the through hole system Opening the partition portion and communicating the inlet and the liquid chamber, the liquid chamber is located above the heat exchange chamber, and the water flow passage is disposed between the liquid chamber and the circumferential side of the liquid chamber wall, and penetrates the partition portion to The heat exchange chamber is connected. The water-cooling device of claim 8, wherein the heat exchange element has a thermal contact surface and a heat exchange surface, the heat exchange surface being in contact with a cooling liquid in the heat exchange chamber. The water-cooling device of claim 8, wherein the water flow passage has a first inclined surface that extends downward from a bottom side of the water flow passage located in the liquid chamber toward the partition portion. The heat exchange chamber has a second inclined surface opposite to the inner wall of the water flow passage, and the second inclined surface is adjacently connected to the first inclined surface. The water-cooling device of claim 10, wherein the height of the first inclined surface is higher than the second inclined surface, so that a height difference is formed between the first and second inclined surfaces, and the first The inclined surface is substantially perpendicular to the second inclined surface. The water-cooling device of claim 8, wherein an upper edge portion or a lower edge portion of each blade is axially magnetized to form the magnetic pole region, and a protective film covers the circuit board and the outer side of the coil assembly. And the circuit board covered with the protective film is disposed on the inner wall top side or the inner wall bottom side of the liquid chamber together with the coil group, and corresponds to the magnetic pole region of the blade. The water-cooling device of claim 8, wherein an upper edge portion or a lower edge portion of each of the blades is axially magnetized to form the magnetic pole region, and the circuit board is integrally formed with the coil assembly in the storage. a top portion of the liquid housing or the spacing portion, and corresponding to the magnetic pole region of the blade, and the circuit board and the stator are located outside the liquid chamber, and the liquid storage housing blocks the cooling liquid from contacting the stator and the circuit board . The water-cooling device of claim 1, wherein the coil set is selected to be formed on the circuit board in a printing manner or a stacking manner or etching or wiring.