Water cooled head

Abstract

The utility model provides a water cooling head contains a casing, a vane wheel and a motor. The casing has a liquid inlet, a heat exchange chamber, a vane wheel chamber and a liquid outlet in sequence. The vane wheel is arranged in the vane wheel chamber. The motor contains a circuit board, a stator assembly and a rotor, the circuit board is arranged in the casing, the stator assembly is arranged on the circuit board, and the rotor is arranged on the vane wheel.

Description

Technical Field

[0001] This utility model relates to a water cooling head, and more particularly to a water cooling head for a cooling fan. Background Technology

[0002] Currently, heat sources in electronic devices (such as central processing units or graphics processing units) are thermally coupled to water cooling blocks. The heat generated by the heat source is transferred to the water cooling block, and the coolant flowing through the water cooling block exchanges heat with it to carry it away. However, as the performance of heat sources becomes increasingly sophisticated, the amount of heat generated also increases. Therefore, improving the heat dissipation efficiency of water cooling blocks to cope with increasingly powerful heat sources is one of the goals that researchers in this field are striving to achieve. Utility Model Content

[0003] The present invention provides a water cooling head whose structural configuration can improve heat dissipation efficiency.

[0004] An embodiment of this invention discloses a water-cooling head comprising a housing, an impeller, and a motor. The housing has a liquid inlet, a heat exchange chamber, an impeller chamber, and a liquid outlet sequentially connected. The impeller is disposed within the impeller chamber. The motor comprises a circuit board, a stator assembly, and a rotor. The circuit board is disposed within the housing, the stator assembly is disposed within the circuit board, and the rotor is disposed within the impeller.

[0005] The aforementioned water cooling head includes a housing comprising a base, a heat-conducting component, a cover, and a flow guiding assembly. The liquid inlet and the liquid outlet are located on the base. The heat-conducting component and the cover are respectively assembled on opposite sides of the base. The heat-conducting component and the base together form the heat exchange chamber. The circuit board is disposed on the cover. The flow guiding assembly is disposed within the base. The flow guiding assembly and the cover together form the impeller chamber. The flow guiding assembly has a first connecting channel and a second connecting channel. The first connecting channel connects the liquid inlet and the heat exchange chamber, and the second connecting channel connects the heat exchange chamber and the impeller chamber.

[0006] In the aforementioned water cooling head, the flow guiding assembly includes a first water guiding plate, a second water guiding plate, and a third water guiding plate stacked sequentially. The first water guiding plate is closer to the impeller chamber than the second and third water guiding plates. The first water guiding plate has a first outlet and a second outlet. The second water guiding plate has a third outlet and at least a fourth outlet. The third water guiding plate has at least a fifth outlet. The first outlet and the third outlet together form the first connecting channel. The second outlet, the at least a fourth outlet, and the at least a fifth outlet together form the second connecting channel.

[0007] In the aforementioned water cooling head, the first port is located at the corner of the first water guide plate, the second port is located at the center of the first water guide plate, the third port is located at the corner of the second water guide plate, and the at least one fourth port is located on the side of the second water guide plate. The second water guide plate further has a groove that connects to the at least one fourth port, and the at least one fifth port is located on the side of the third water guide plate. The first port and the third port are aligned with each other, the second port is aligned with the groove, and the at least one fourth port is aligned with the at least one fifth port. The second port, the groove, the at least one fourth port, and the at least one fifth port together form the second connecting channel.

[0008] In the aforementioned water cooling head, there are two fourth ports, which are located on opposite sides of the second water guide plate. There are also two fifth ports, which are located on opposite sides of the third water guide plate. The two fourth ports are aligned with the two fifth ports.

[0009] The aforementioned water cooling head has a chamber inlet and at least one chamber outlet. The at least one chamber outlet is located on one side of the chamber inlet. A first connecting channel connects to the heat exchange chamber through the chamber inlet, and a second connecting channel connects to the heat exchange chamber through the at least one chamber outlet.

[0010] The aforementioned water cooling head further includes a baffle plate disposed between the base and the heat-conducting component. The baffle plate has a slit through which the chamber inlet connects to the heat exchange chamber.

[0011] The aforementioned water cooling head further includes two sealing elements, one of which is disposed between the heat-conducting element and the base, and the other of which is disposed between the cover and the base.

[0012] The aforementioned water cooling head, wherein the impeller includes a disc portion and a plurality of blades, the disc portion includes a central portion and a peripheral portion surrounding the central portion, the maximum thickness of the central portion is greater than the thickness of the peripheral portion, and the blades are disposed on the peripheral portion.

[0013] In the aforementioned water cooling head, the stator assembly and the rotor are arranged along the rotation axis of the impeller.

[0014] According to the water cooling head disclosed in the above embodiments, the inlet, heat exchange chamber, impeller chamber, and outlet of the housing are sequentially connected. The impeller is disposed in the impeller chamber, the motor circuit board is disposed in the housing, the stator assembly is disposed in the circuit board, and the rotor is disposed in the impeller. This configuration allows the coolant entering the water cooling head through the inlet to first enter the heat exchange chamber to absorb heat before entering the impeller chamber. Driven by the impeller in the impeller chamber, the coolant exits the water cooling head through the outlet. This structural configuration improves the heat exchange efficiency between the coolant and the water cooling head, thereby enhancing the heat dissipation efficiency of the water cooling head.

[0015] The above description of the present invention and the following description of its embodiments are intended to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention. Attached Figure Description

[0016] Unless otherwise stated, the drawings illustrate the appearance of the novel object described in this utility model. Referring to the drawings, where the same component symbols denote similar parts in multiple views, examples of multiple liquid cooling systems, cooling circuits, and flexible tubes incorporating the principles currently disclosed are illustrated by way of example rather than limitation.

[0017] Figure 1 This is a perspective view of a water cooling head disclosed according to a first embodiment of the present invention.

[0018] Figure 2 for Figure 1 An exploded view of the water cooling head.

[0019] Figure 3 for Figure 1 An exploded view of the water cooling head from another perspective.

[0020] Figure 4 for Figure 1 A bottom view of the water cooling head.

[0021] Figure 5 For along Figure 4 The sectional view shown by the secant line 5-5.

[0022] Figure 6 For along Figure 4 The sectional view shown by the secant line 6-6.

[0023] Figure 7 For along Figure 4 The sectional view shown by the secant line 7-7.

[0024] Figure 8 For along Figure 4 The sectional view shown by the secant line 8-8.

[0025] Figure 9 for Figure 2A three-dimensional diagram of the impeller.

[0026] Figure 10 This is a perspective view of a water cooling head disclosed according to a second embodiment of the present invention.

[0027] Figure 11 for Figure 10 An exploded view of the water cooling head.

[0028] Figure 12 for Figure 10 An exploded view of the water cooling head from another perspective.

[0029] In the attached figures, the following labels are used:

[0030] 1,1a: Water cooling head

[0031] 10,10a: Shell

[0032] 11,11a: Seat

[0033] 111: Liquid inlet

[0034] 112:Liquid outlet

[0035] 113: Chamber entrance

[0036] 114: Chamber exit

[0037] 12,12a: Thermal conductive components

[0038] 13,13a: Fin structure

[0039] 14,14a: Cover

[0040] 15, 15a: Flow guiding components

[0041] 151: First water guide plate

[0042] 1511: First Pass

[0043] 1512: Second Passage

[0044] 152: Second water guide plate

[0045] 1521: The Third Pass

[0046] 1522: Fourth Pass

[0047] 1523: Trench

[0048] 153: Third water guide plate

[0049] 1532: Fifth Pass

[0050] 20,20a: Impeller

[0051] 21: Plate

[0052] 211: Central Department

[0053] 212: Peripheral Department

[0054] 22: Blade

[0055] 30, 30a: Motor

[0056] 31: Circuit Board

[0057] 32: Stator assembly

[0058] 321: Coil

[0059] 33: Rotor

[0060] 41, 42, 41a, 42a: Seals

[0061] 50, 50a: Baffle

[0062] 51: Slit

[0063] HC: Heat exchange chamber

[0064] IC: Impeller Chamber

[0065] C1: First Connecting Passage

[0066] C2: Second Connecting Passage

[0067] T1: Maximum thickness

[0068] T2: Thickness

[0069] A: Rotation axis Detailed Implementation

[0070] Please see Figures 1 to 3 . Figure 1 This is a perspective view of a water cooling head disclosed according to a first embodiment of the present invention. Figure 2 for Figure 1 An exploded view of the water cooling head. Figure 3 for Figure 1 An exploded view of the water cooling head from another perspective.

[0071] In this embodiment, the water cooling head 1 includes a housing 10, an impeller 20, and a motor 30. In addition, the water cooling head 1 may also include two sealing components 41 and 42, wherein the housing 10 includes a base 11, a heat-conducting component 12, multiple fin structures 13, a cover 14, and a flow guiding assembly 15.

[0072] Next, please refer to Figure 2 and Figures 4 to 8 . Figure 4 for Figure 1 A bottom view of the water cooling head. Figure 5 For along Figure 4 The sectional view shown by the secant line 5-5. Figure 6 For along Figure 4 The sectional view shown by the secant line 6-6. Figure 7 For along Figure 4 The sectional view shown by the secant line 7-7. Figure 8 For along Figure 4 The sectional view shown by the secant line 8-8.

[0073] The heat-conducting element 12 and the cover 14 are respectively assembled on opposite sides of the base 11, and the heat-conducting element 12 is used for thermal coupling to a heat source (not shown). A sealing element 41 is disposed between the heat-conducting element 12 and the base 11, and a sealing element 42 is disposed between the cover 14 and the base 11. The heat-conducting element 12 and the base 11 together form a heat exchange chamber HC. These fin structures 13 are located in the heat exchange chamber HC and thermally coupled to the heat-conducting element 12, so that heat generated by the heat source can be conducted to these fin structures 13 via the heat-conducting element 12. A flow guiding assembly 15 is disposed within the base 11, and the flow guiding assembly 15 and the cover 14 together form an impeller chamber IC. The base 11 has a liquid inlet 111 and a liquid outlet 112. The flow guiding assembly 15 has a first connecting channel C1 and a second connecting channel C2. The first connecting channel C1 connects to the liquid inlet 111 and the heat exchange chamber HC, and the second connecting channel C2 connects to the heat exchange chamber HC and the impeller chamber IC.

[0074] For example, the flow guiding assembly 15 includes a first water guiding plate 151, a second water guiding plate 152, and a third water guiding plate 153 stacked sequentially, with the first water guiding plate 151 closer to the impeller chamber IC than the second water guiding plate 152 and the third water guiding plate 153. The first water guiding plate 151 has a first opening 1511 and a second opening 1512, with the first opening 1511 located at a corner of the first water guiding plate 151 and the second opening 1512 located at the center of the first water guiding plate 151. The second water guiding plate 152 has a third opening 1521, two fourth openings 1522, and a groove 1523. The third opening 1521 is located at a corner of the second water guiding plate 152, the two fourth openings 1522 are located on opposite sides of the second water guiding plate 152, and the groove 1523 connects the two fourth openings 1522. The third water guiding plate 153 has two fifth openings 1532. The second and fifth openings 1532 are located on opposite sides of the third water guide plate 153. The first opening 1511 and the third opening 1521 are aligned and together form the first connecting channel C1. The second opening 1512 is aligned with the groove 1523, and the second and fourth openings 1522 are respectively aligned with the second and fifth openings 1532, wherein the second opening 1512, the groove 1523, the second and fourth openings 1522, and the second and fifth openings 1532 together form the second connecting channel C2.

[0075] In this embodiment, the base 11 has a chamber inlet 113 and two chamber outlets 114. The two chamber outlets 114 are located on opposite sides of the chamber inlet 113. Furthermore, the water-cooling head 1 may also include a baffle 50. The baffle 50 is disposed within the heat exchange chamber HC between the base 11 and the heat-conducting component 12. The baffle 50 has a slit 51, through which the chamber inlet 113 connects to the heat exchange chamber HC. A first connecting channel C1 connects to the heat exchange chamber HC through the chamber inlet 113 and the slit 51, and a second connecting channel C2 connects to the heat exchange chamber HC through the two chamber outlets 114.

[0076] Next, please refer to Figure 3 , Figure 6 and Figure 9 . Figure 9 for Figure 2 A perspective view of the impeller. The impeller 20 is disposed within the impeller chamber IC. The impeller 20 includes a disc portion 21 and a plurality of blades 22. The disc portion 21 includes a central portion 211 and a peripheral portion 212 surrounding the central portion 211. The maximum thickness T1 of the central portion 211 is greater than the thickness T2 of the peripheral portion 212. The blades 22 are disposed on the peripheral portion 212.

[0077] like Figure 2 , Figure 3 and Figure 6 As shown, the motor 30 includes a circuit board 31, a stator assembly 32, and a rotor 33. The circuit board 31 is disposed on the cover 14 of the housing 10. The stator assembly 32 is disposed on the circuit board 31 and includes multiple coils 321. The rotor 33 is a magnet and is disposed on the impeller 20. The stator assembly 32 and the rotor 33 are arranged along the rotation axis A of the impeller 20. When the stator assembly 32 is energized, a magnetic field is generated between the rotor 33 and the stator assembly 32, which drives the impeller 20 to rotate.

[0078] Next, with Figures 5 to 8 Explain the process of coolant flowing through water block 1. Figures 5 to 8 In the diagram, the dashed arrows indicate the direction of coolant flow. Coolant entering the water head 1 through inlet 111 flows through the first connecting channel C1 to the heat exchange chamber HC to exchange heat with the fin structures 13. Next, the coolant flows through the second connecting channel C2 to the impeller chamber IC, and then leaves the water head 1 through outlet 112 driven by the impeller 20.

[0079] In this embodiment, the inlet 111, heat exchange chamber HC, impeller chamber IC, and outlet 112 of the housing 10 are sequentially connected. The impeller 20 is disposed within the impeller chamber IC. The circuit board 31 of the motor 30 is disposed within the housing 10, the stator assembly 32 is disposed within the circuit board 31, and the rotor 33 is disposed within the impeller 20. This configuration allows the coolant entering the water-cooling head 1 through the inlet 111 to first enter the heat exchange chamber HC to absorb heat before entering the impeller chamber IC. Driven by the impeller 20 within the impeller chamber IC, the coolant exits the water-cooling head 1 through the outlet 112. This structural configuration improves the heat exchange efficiency between the coolant and the water-cooling head 1, thereby enhancing the heat dissipation efficiency of the water-cooling head 1.

[0080] Furthermore, by having a maximum thickness T1 of the central portion 211 of the impeller 20 disk portion 21 greater than the thickness T2 of the peripheral portion 212, and by arranging these blades 22 on the peripheral portion 212, the performance of the water cooling head 1 can be enhanced, thereby improving the heat dissipation efficiency of the water cooling head 1.

[0081] Compared to a water cooling head where the inlet, impeller chamber, heat exchange chamber, and outlet are sequentially connected, the water cooling head 1 in this embodiment, due to the above-described structural configuration, can increase the flow rate from 71 liters / hour (L / H) to 100 liters / hour, the head from 155 cm / H2O to 300 cm / H2O, the rotation speed from 3400 rpm to 4500 rpm, and reduce the temperature of the heat source by approximately 4.2°C.

[0082] In the above description, the number of the fourth port 1522 of the second water guide plate 152, the fifth port 1532 of the third water guide plate 153, and the chamber outlet 114 of the seat 11 is not limited to two, and can be modified to one in other embodiments.

[0083] Furthermore, the positions of the first opening 1511 and the second opening 1512 of the first water guide plate 151, the third opening 1521 and the fourth opening 1522 of the second water guide plate 152, and the fifth opening 1532 of the third water guide plate 153 are not intended to limit this invention, but can be adjusted according to requirements. Moreover, the flow guiding assembly 15 is not limited to including the first water guide plate 151, the second water guide plate 152, and the third water guide plate 153; the structure of the flow guiding assembly 15 can be adjusted according to requirements.

[0084] In addition, the chamber inlet 113 and chamber outlet 114 of the seat 11 are optional structures and may be omitted in other embodiments.

[0085] It should be noted that the baffle 50 and the two seals 41 and 42 are also optional components, but may be omitted in other embodiments.

[0086] On the other hand, the aforementioned housing 10 is merely an example, and the structure of the housing 10 can be adjusted according to requirements.

[0087] Next, please refer to Figures 10 to 12 . Figure 10 This is a perspective view of a water cooling head disclosed according to a second embodiment of the present invention. Figure 11 for Figure 10 An exploded view of the water cooling head. Figure 12 for Figure 10 An exploded view of the water cooling head from another perspective.

[0088] The water cooling head 1a of this embodiment is similar to the water cooling head 1 of the above embodiment. The water cooling head 1a of this embodiment includes a housing 10a, an impeller 20a, a motor 30a, two sealing components 41a and 42a, and a baffle plate 50a. The housing 10a also includes a base 11a, a heat-conducting component 12a, multiple fin structures 13a, a cover 14a, and a flow guiding assembly 15a. The main difference between the water cooling head 1a of this embodiment and the water cooling head 1 of the above embodiment lies in the different shapes of some components; however, the connection relationships and functions between these components remain the same, and therefore will not be described again.

[0089] According to the water cooling head disclosed in the above embodiments, the inlet, heat exchange chamber, impeller chamber, and outlet of the housing are sequentially connected. The impeller is disposed in the impeller chamber, the motor circuit board is disposed in the housing, the stator assembly is disposed in the circuit board, and the rotor is disposed in the impeller. This configuration allows the coolant entering the water cooling head through the inlet to first enter the heat exchange chamber to absorb heat before entering the impeller chamber. Driven by the impeller in the impeller chamber, the coolant exits the water cooling head through the outlet. This structural configuration improves the heat exchange efficiency between the coolant and the water cooling head, thereby enhancing the heat dissipation efficiency of the water cooling head.

[0090] Although the present invention has been disclosed above with reference to the preferred embodiments described above, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope of protection of the claims appended to this specification.

Claims

1. A water cooling head, characterized in that, Include: A housing having a liquid inlet, a heat exchange chamber, an impeller chamber and a liquid outlet connected in sequence; An impeller is disposed within the impeller chamber; and A motor includes a circuit board, a stator assembly, and a rotor. The circuit board is disposed in the housing, the stator assembly is disposed in the circuit board, and the rotor is disposed in the impeller.

2. The water cooling head as described in claim 1, characterized in that, The housing includes a base, a heat-conducting component, a cover, and a flow guiding assembly. The liquid inlet and the liquid outlet are located on the base. The heat-conducting component and the cover are respectively assembled on opposite sides of the base. The heat-conducting component and the base together form the heat exchange chamber. The circuit board is disposed on the cover. The flow guiding assembly is disposed in the base. The flow guiding assembly and the cover together form the impeller chamber. The flow guiding assembly has a first connecting channel and a second connecting channel. The first connecting channel connects the liquid inlet and the heat exchange chamber, and the second connecting channel connects the heat exchange chamber and the impeller chamber.

3. The water cooling head as described in claim 2, characterized in that, The flow guiding assembly includes a first water guiding plate, a second water guiding plate, and a third water guiding plate stacked sequentially. The first water guiding plate is closer to the impeller chamber than the second and third water guiding plates. The first water guiding plate has a first outlet and a second outlet. The second water guiding plate has a third outlet and at least a fourth outlet. The third water guiding plate has at least a fifth outlet. The first outlet and the third outlet together form the first connecting channel. The second outlet, the at least a fourth outlet, and the at least a fifth outlet together form the second connecting channel.

4. The water cooling head as described in claim 3, characterized in that, The first opening is located at the corner of the first water guide plate, the second opening is located at the center of the first water guide plate, the third opening is located at the corner of the second water guide plate, and the at least one fourth opening is located on the side of the second water guide plate. The second water guide plate further has a groove that connects to the at least one fourth opening. The at least one fifth opening is located on the side of the third water guide plate. The first opening and the third opening are aligned with each other, the second opening is aligned with the groove, and the at least one fourth opening is aligned with the at least one fifth opening. The second opening, the groove, the at least one fourth opening, and the at least one fifth opening together form the second connecting channel.

5. The water cooling head as described in claim 4, characterized in that, The number of at least one fourth opening is two, and the two fourth openings are respectively located on opposite sides of the second water guide plate. The number of at least one fifth opening is two, and the two fifth openings are respectively located on opposite sides of the third water guide plate. The two fourth openings are respectively aligned with the two fifth openings.

6. The water cooling head as described in claim 2, characterized in that, The seat has a chamber inlet and at least one chamber outlet, the at least one chamber outlet being located on one side of the chamber inlet, the first connecting channel connecting to the heat exchange chamber through the chamber inlet, and the second connecting channel connecting to the heat exchange chamber through the at least one chamber outlet.

7. The water cooling head as described in claim 6, characterized in that, It further includes a baffle plate disposed between the base and the heat-conducting component. The baffle plate has a slit through which the chamber inlet communicates with the heat exchange chamber.

8. The water cooling head as described in claim 2, characterized in that, It further includes two sealing elements, one of which is disposed between the heat-conducting element and the base, and the other of which is disposed between the cover and the base.

9. The water cooling head as described in claim 1, characterized in that, The impeller includes a disc and a plurality of blades. The disc includes a central portion and a peripheral portion surrounding the central portion. The maximum thickness of the central portion is greater than the thickness of the peripheral portion. The blades are disposed on the peripheral portion.

10. The water cooling head as described in claim 1, characterized in that, The stator assembly and the rotor are arranged along the rotation axis of the impeller.

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