TWI670461B - Cold plate - Google Patents

Abstract

This case provides a water cooling head, which includes a housing, a base, a heat transfer structure, and a pump. The housing and the base together define an action space. The action space can be filled with working medium, and the pump includes a fixed frame, a shaft rod, and a fan After being fixed, the fixing frame contacts the base or the heat transfer structure, and is used to fix the shaft rod so that the fan blade can rotate stably along the shaft rod, thereby ensuring the efficiency and reliability of the water cooling head.

Description

Water head

This case is related to the field of heat dissipation, especially about a water cooling head.

With the rapid development of computers and various electronic devices and the convenience they bring, modern people have become accustomed to using time. However, when computers and various electronic devices are operated for a long time, their The disadvantage that the heat cannot be dissipated in time is also accompanied.

Generally speaking, electronic products generally use heat-dissipating pastes or fins attached to the heating elements of the electronic products to absorb the heat of the heating elements. However, this method has poor heat dissipation efficiency and limited effects. In view of this, liquid-cooled heat dissipation modules have been proposed. Please refer to FIG. 1, which is a conceptual diagram of a conventional liquid-cooled heat dissipation module. The liquid-cooled heat dissipation module 9 includes a water-cooling row 91, a water-cooling head 92 and a pump 93, and any one of the water-cooling row 91, the water-cooling head 92 and the pump 93 are connected through a pipe body 94, so the water-cooling row 91. The water cooling head 92 and the pump 93 are in fluid communication; wherein, the water cooling head 92 is used for thermal contact with the heating element (not shown) of the electronic product (not shown), and the water cooling head 92 has been heated. The medium (not shown) will flow to a lower temperature in the liquid-cooled heat dissipation module 9 for heat exchange, and the pump 93 is used to enhance the circulation of the working medium in the liquid-cooled heat dissipation module 9.

Under specific considerations, such as reducing the overall volume of the heat dissipation module, increasing the flexibility of the heat dissipation module, or simplifying the structure In view of the volume, a water cooling head with a built-in pump is proposed, that is, in the liquid cooling type heat dissipation device, the pump is directly provided in the water cooling head, and the flow of the working medium is driven by the fan blades of the pump. Therefore, in the water cooling head, whether the fan blades of the pump can be fixedly rotated along the same axis without offset, overturn or vibration has become an important key that affects the performance and reliability of the water cooling head. In addition, the location of the fan blades and related components also affect the heat transfer and thermal conductivity of the water cooling head after being heated.

The main purpose of the present invention is to provide a water-cooled head with a built-in pump. The fixing frame is in contact with the base or the heat transfer structure after being fixed and used to fix the shaft rod so that the fan blade can rotate stably along the shaft rod In order to ensure the efficiency and reliability of the water cooling head.

In a preferred embodiment, the present invention provides a water cooling head, including: a housing; a base, and the housing jointly define an action space, and the action space is filled with a working medium; a heat transfer The structure is disposed inside the base, wherein, when the outer side of the base is in thermal contact with a heat source to absorb a thermal energy, the thermal energy is transferred to the working medium through the base and the heat transfer structure in sequence; and a The pump includes a fixing frame, a shaft rod and a blade, the fixing frame contacts the base or the heat transfer structure after being fixed, and the fixing frame is provided for the shaft rod to fix the shaft Rod, and the fan blade is sleeved on the shaft rod and rotates along the shaft rod to drive the working medium to flow.

In a preferred embodiment, the heat transfer structure is a fin group or a sintered heat dissipation structure formed by sintering.

In a preferred embodiment, one end of the shaft bar is fixed on the fixing frame, and the other end of the shaft bar is fixed on the inner side of the housing.

In a preferred embodiment, the fixing frame is fixed to the heat transfer structure.

In a preferred embodiment, the heat transfer structure includes a plurality of fins, and the fixing frame is fixedly connected to the tops of at least some of the fins.

In a preferred embodiment, the heat transfer structure includes a groove, and at least part of the fixing frame is received in the groove.

In a preferred embodiment, the fixing frame is fixed to the base.

In a preferred embodiment, the fixing frame is fixed to the casing.

In a preferred embodiment, the fixing frame includes at least one side wing portion and a base for fixing one end of the shaft rod, and one end of each side wing portion is connected to the base, and each of the The other end of one of the side wings extends in the direction of the casing to be fixed to the casing.

In a preferred embodiment, the at least one wing portion includes at least one wing perforation for the working medium to pass through.

In a preferred embodiment, the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the housing, the fixing frame contacts the top of at least a part of the fins.

In a preferred embodiment, the heat transfer structure includes a groove, and when the fixing frame is fixed to the housing, at least part of the fixing frame is accommodated in the groove.

In a preferred embodiment, the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the housing, the fixing frame contacts the inner side of the base.

In a preferred embodiment, the water cooling head further includes a water inlet channel and A water outlet channel, and the water inlet channel and the water outlet channel are respectively communicated with the action space; wherein, the water cooling head can be connected to a heat exchange device, and the heat exchange device is used to discharge the working medium discharged from the drainage channel Cooling down, and the working medium after cooling down flows into the action space through the water inlet channel.

In a preferred embodiment, the present invention also provides a water cooling head, including: an action space in which a working medium is filled; a heat transfer structure provided on a base and located in the action space, And when the base is in thermal contact with a heat source to absorb a thermal energy, the thermal energy is sequentially transferred to the working medium through the base and the heat transfer structure; and a pump, including: a fixing frame, which is attached to After being fixed, it is in contact with the base or with the heat transfer structure; a shaft bar is installed on the fixing frame to be fixed; and a blade is sleeved on the shaft bar and divides the action space into a plurality Space; wherein, when the fan blade rotates along the shaft, the working medium is driven to flow.

In a preferred embodiment, the plural spaces include a heat absorption space and a drainage space, and the heat transfer structure is located in the heat absorption space.

In a preferred embodiment, the heat transfer structure is a fin group or a sintered heat dissipation structure formed by sintering.

In a preferred embodiment, the fixing frame is fixed to the heat transfer structure.

In a preferred embodiment, the heat transfer structure includes a plurality of fins, and the fixing frame is fixedly connected to the tops of at least some of the fins.

In a preferred embodiment, the heat transfer structure includes a groove, and at least part of the fixing frame is received in the groove.

In a preferred embodiment, the fixing frame is fixed to the base.

In a preferred embodiment, the water cooling head further includes a casing, and the casing and the base jointly define the working space; wherein, the fixing frame is fixedly connected to the casing.

In a preferred embodiment, the fixing frame includes at least one side wing portion and a base for fixing one end of the shaft rod, and one end of each side wing portion is connected to the base, and each of the The other end of one of the side wings extends in the direction of the casing to be fixed to the casing.

In a preferred embodiment, the at least one wing portion includes at least one wing perforation for the working medium to pass through.

In a preferred embodiment, the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the housing, the fixing frame contacts the top of at least a part of the fins.

In a preferred embodiment, the heat transfer structure includes a groove, and when the fixing frame is fixed to the housing, at least part of the fixing frame is accommodated in the groove.

In a preferred embodiment, when the fixing frame is fixed to the casing, the fixing frame is in contact with the inner side of the base.

In a preferred embodiment, the water cooling head further includes a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are respectively communicated with the action space; wherein, the water cooling head can be connected to a heat exchange device, And the heat exchange device is used to cool the working medium discharged from the drainage channel, and the working medium after cooling The mass system flows into the working space through the water inlet channel.

1‧‧‧ water cooling head

2A‧‧‧case

2D‧‧‧case

3‧‧‧Base

4‧‧‧Pump

5‧‧‧Function space

6‧‧‧Shaft rod

7A‧‧‧Fixing frame

7B‧‧‧Fixing frame

7C‧‧‧Fixing frame

7D‧‧‧Fixing frame

7E‧‧‧Fixing frame

7F‧‧‧Fixing frame

8‧‧‧Hollow area

21‧‧‧Inlet channel

22‧‧‧Drainage channel

23‧‧‧ Water inlet connector

24‧‧‧Drain joint

25‧‧‧ Case fixing part

31‧‧‧Endothermic

32A‧‧‧heat transfer structure

32B‧‧‧heat transfer structure

32C‧‧‧heat transfer structure

32D‧‧‧heat transfer structure

32E‧‧‧heat transfer structure

32F‧‧‧heat transfer structure

41‧‧‧ circuit board

42‧‧‧The first magnetic element

43‧‧‧Second magnetic element

44‧‧‧leaf

51‧‧‧Heat absorbing space

52‧‧‧Drainage space

71‧‧‧Dock

72‧‧‧flank

321A‧‧‧fin

321B‧‧‧fin

321D‧‧‧fin

321E‧‧‧fin

322‧‧‧Front end

323‧‧‧Back

441‧‧‧Top wall

442‧‧‧Chassis

443‧‧‧Partition wall

444‧‧‧Shaft sleeve

445‧‧‧Drainage chamber

446‧‧‧ Hollow Department

721‧‧‧Flanking perforation

3211B‧‧‧Groove

3211D‧‧‧groove

a‧‧‧hatching

b‧‧‧hatching

Figure 1: It is a conceptual diagram of the conventional liquid-cooled heat dissipation module.

FIG. 2A is a schematic diagram of the appearance of the water cooling head of the present invention in a first preferred embodiment.

FIG. 2B is a schematic view of the appearance of the water cooling head shown in FIG. 2A from another perspective.

Fig. 3 is a schematic cross-sectional view of the water cooling head shown in Fig. 2A taken along the line a-a.

Fig. 4 is a partially enlarged schematic view of Fig. 3.

Fig. 5 is a schematic perspective view of a part of the structure of the water cooling head shown in Fig. 2A.

Fig. 6 is a schematic side view of the working medium inside the water cooling head shown in Fig. 2A being sucked into the fan blade from the water inlet channel through the heat transfer structure.

FIG. 7 is a top view of the working medium inside the water cooling head shown in FIG. 2A being drawn into the fan blade from the water inlet channel through the heat transfer structure.

FIG. 8 is a schematic side view of the working medium inside the water cooling head shown in FIG. 2A discharged from the heat transfer structure through the fan blades to the drain.

Fig. 9 is a perspective exploded view of a part of the structure of the water cooling head shown in Fig. 5.

FIG. 10A is a structural side view of the water cooling head of the present invention on the base and heat transfer structure of a second preferred embodiment.

Fig. 10B is a conceptual schematic diagram of a fixing frame provided on the heat transfer structure of the water cooling head shown in Fig. 10A and a shaft rod provided on the fixing frame.

FIG. 11A is a structural side view of the water cooling head of the present invention on the base and heat transfer structure of a third preferred embodiment.

Fig. 11B is a conceptual schematic diagram of a fixing frame provided on the heat transfer structure of the water cooling head shown in Fig. 11A and a shaft rod provided on the fixing frame.

12 is a perspective view of the water cooling head of the present invention on a base, heat transfer structure, fixing frame and shaft rod of a fourth preferred embodiment.

Fig. 13 is a schematic cross-sectional view of the base, heat transfer structure, fixing frame and shaft rod taken along the line b-b shown in Fig. 12.

Fig. 14 is a conceptual schematic diagram of the fixing frame and the housing shown in Fig. 12 being fixedly connected.

15 is a schematic cross-sectional view of the water cooling head and the heat transfer structure of the fixing frame of the fifth preferred embodiment of the present invention when it is fixedly connected to the housing.

FIG. 16 is a schematic cross-sectional view of the water cooling head and the heat transfer structure of the fixing frame of a sixth preferred embodiment of the present invention when it is fixed to the housing.

First of all, the description of the arrangement of the working space in the water cooling head, the flow direction of the working medium, and the structure and function of the fan blades in this case are only examples. Those skilled in the art can make any equal design changes according to the actual application needs. . In addition, the description of the "fixed connection" between the two components in this case can be implemented by means of adhesive fixation, snap fixation, lock fixation, welding fixation, integral molding, etc., which will not be repeated below.

Please refer to FIG. 2A, FIG. 2B, FIG. 3 and FIG. 4 at the same time. FIG. 2A is a schematic view of the appearance of the water cooling head of the present invention in a first preferred embodiment. FIG. 2B is a view of the water cooling head shown in FIG. Schematic diagram of appearance structure, Figure 3 is the water cooling head edge shown in Figure 2A The cross-sectional schematic diagram obtained by the a-a section line, and FIG. 4 is a partially enlarged schematic diagram of FIG. 3. The water cooling head 1 includes a casing 2A, a base 3 and a pump 4. When the housing 2A and the base 3 are combined together, the housing 2A and the base 3 can jointly define a working space 5 for the working medium to flow, so that the user or the manufacturer can fill the working space 5 later The medium allows the water cooling head 1 to function as a heat sink. The housing 2A includes an inlet channel 21 and a drain channel 22. The inlet channel 21 communicates with the working space 5 for allowing the cooled working medium (not shown) to flow into the working space 5, and the drain channel 22 is the same It communicates with the working space 5 for letting the heat-absorbing working medium out of the working space 5.

In addition, the water inlet channel 21 and the water drainage channel 22 can be extended outward or provided with a water inlet connector 23 and a water drain connector 24. The water inlet connector 23 and the water drain connector 24 can be arranged vertically or horizontally, as long as they can It can be connected to other heat exchange devices such as water cooling. The heat exchange device (not shown) connected to the water cooling head 1 can cool the working medium discharged from the drainage channel 21, and the working medium after cooling The water inlet channel 22 flows into the action space 5 of the water cooling head 1 again.

Furthermore, the outside of the base 3 has a heat absorbing bottom surface 31, and the inside of the base 3 is provided or formed with a heat transfer structure 32A. When the heat absorbing bottom surface 31 contacts the heat source, it will absorb its heat energy and transfer it to the heat transfer structure 32A Then, the heat transfer structure 32A will transfer thermal energy to the working medium through contact with the working medium. In the preferred embodiment, the heat transfer structure 32A is a fin group, which includes a plurality of fins 321A, and each fin 321A can select a skived fin or a pin fin ), Or other columnar, sheet-like, or even irregular-shaped fins, as long as the area in contact with the working medium can be increased, heat energy can be transferred to the working medium more quickly. In other words, the implementation of the heat transfer structure 32A is not limited to the above fin set. For example, the heat transfer structure 32A can also be sintered by powder, woven mesh or fiber bundle Heat dissipation structure, such as capillary structure.

Please refer to FIGS. 3 and 4. The pump 4 disposed in the water cooling head 1 is installed in the housing 2A, and includes a circuit board 41, a first magnetic element 42, a second magnetic element 43 and a fan blade 44, wherein the circuit board 41 and the first magnetic element 42 are arranged outside the casing 2A, and the second magnetic element 43 is combined with the fan blade 44 and arranged inside the casing 2A, and is located in the working space 5 . The first magnetic element 42 may be selected from silicon steel sheets or magnets, and the second magnetic element 43 may be selected from a magnet. Under the joint action of the circuit board 41, the first magnetic element 42 and the second magnetic element 43, the fan blade 44 can be driven to rotate and drive the movement of the working medium. Preferably, but not limited to this, the fan blade 44 also has a guiding function that allows the working medium to enter the working space 5 from the water inlet channel 21 and absorb heat energy, and then smoothly discharge to the drainage channel 22.

In detail, please refer to FIGS. 3-8 at the same time. FIG. 5 is a perspective schematic view of a part of the structure of the water cooling head shown in FIG. 2A, and FIG. 6 is a working medium inside the water cooling head shown in FIG. 2A. The side view of the structure is drawn into the fan blade. FIG. 7 is a top view of the working medium inside the water cooling head shown in FIG. 2A being drawn into the fan blade through the water inlet channel and the heat transfer structure. FIG. 8 is the water cooling head shown in FIG. 2A A schematic side view of the working medium inside discharged from the heat transfer structure through the fan blades to the drainage. In the preferred embodiment, the fan blade 44 is disposed in the working space 5 and is adjacent to the drainage channel 22, to quickly guide the working medium to the drainage channel 22 and then exit the working space 5. The fan blade 44 includes a chassis 442 and a hollow portion 446. The chassis 442 is used to divide the working space 5 into a heat absorption space 51 and a drainage space 52, and the heat dissipation structure 32A is located in the heat absorption space 515, and the heat absorption space 51 and the drainage space The working medium in 52 can be fluidly coupled through the hollow portion 446, that is, the working medium can flow from the heat absorption space 51 to the drainage space 52.

In addition, the fan blade 44 includes a top wall 441, which is spaced apart from the chassis 442, and a plurality of partition walls 443 are connected between the two, so that the drainage space 52 can be partitioned out of the plurality of drainage chambers 445. In addition, when the working medium passes upward from the heat absorbing space 51 through the hollow portion 446 and enters the drain space, the working medium will touch the top wall 441 and then move toward the drain chamber 445, that is, the top wall 441 In the preferred embodiment, there is a guidance mechanism that can change the flow direction. Moreover, when the fan blade 44 starts to rotate, the working medium will be attracted from the heat absorbing space 51 to the drainage chamber 445 in the drainage space 52, and when each drainage chamber 445 is rotated to pass through the drainage channel 22, the working medium will be The relationship of centrifugal force is thrown into the drainage channel and the water cooling head 1 is discharged.

Further, FIG. 6 to FIG. 8 illustrate from different perspectives and cross sections how the fan blade 44 in the preferred embodiment guides the flow direction of the working medium. First, referring to FIG. 6, when the working medium enters the action space 5 from the water inlet channel 21, it will flow through the heat transfer structure 32A and absorb its thermal energy, and then will be attracted by the hollow portion 442A of the chassis 442 of the fan blade 44 and transferred upward to the top A drainage chamber 445 between the wall 441 and the chassis 442. From the upper view shown in FIG. 7, it can be seen that after the working medium enters from the water inlet channel 21, it will advance from the front end 322 of the heat transfer structure 32A to the rear end 323 of the heat transfer structure 32A, and from the hollow part of the fan blade 44 Below 446 is drawn into the drainage chamber 445 of the drainage space 52. When the drainage chamber 445 is rotated by an angle to contact the drainage channel 22, the working medium will be discharged (or thrown out), and from the side view shown in FIG. 8, the position in the drainage chamber 445 can be more observed How the working medium is discharged in the direction of the drainage channel 22.

In addition, in the preferred embodiment, in order to consider the arrangement direction of the inlet joint 23 and the drain joint 24, and also allow the working medium to absorb the heat energy as much as possible, the heat transfer structure 32A and the fan blade 44 are not coaxial Instead of eccentric matching To achieve better heat transfer efficiency.

Please refer to FIG. 5, FIG. 8 and FIG. 9 simultaneously. FIG. 9 is an exploded perspective view of a part of the structure of the water cooling head shown in FIG. 5. The pump 4 of the water cooling head 1 further includes a shaft rod 6, and the fan blade 44 of the pump 4 has a shaft sleeve 444, and the shaft sleeve 444 is sleeved on the shaft rod 6, so the fan blade 44 can take the shaft rod 6 as the axis And rotate along the shaft rod 6. In particular, in order to prevent the shaft rod 6 from deflecting, rotating, or violently vibrating, the fan blade 44 can be stably rotated in the action space 5, and the pump 4 of the water cooling head 1 further includes a fixing frame 7A, which is 7A is for the shaft rod 6 to be arranged thereon to fix the shaft rod 6. The fixed frame 7A is in contact with the heat transfer structure 32A at the fixed position, thereby reducing the distance between the base 3 and the blade 44.

Further, in the preferred embodiment, one end of the shaft 6 is fixed on the fixing frame 7A, and the other end of the shaft 6 is fixed on the inside of the housing 2A, and the bottom of the fixing frame 7A and the plurality of fins At least part of the fins 321A in 321A are fixed to each other, so that the shaft 6 cannot be shifted, rotated, or strongly vibrated. In this way, the fan blade 44 can operate stably, ensuring the performance and reliability of the water cooling head 1 .

However, the above are only examples, and those skilled in the art can make any equal design changes based on actual application requirements. For example, the other end of the shaft 6 can be modified to be fixed on other elements inside the housing 2A. For another example, although in this preferred embodiment, the top wall 441 of the fan blade 44 and the bottom plate 442 are both vertically arranged at a 90-degree angle to the shaft 6, in other embodiments, the top wall 441 and the bottom plate The design of 442 may be changed to be non-perpendicular to the shaft 6.

Please refer to FIG. 10A and FIG. 10B simultaneously. FIG. 10A is a side view of the structure of the water cooling head of the present invention on the base and heat transfer structure of a second preferred embodiment. FIG. 10B is the heat transfer structure of the water cooling head shown in FIG. 10A. There is a fixed frame and set on the fixed frame Schematic diagram of a shaft rod. Among them, the water cooling head of this preferred embodiment is roughly similar to that described in the first preferred embodiment of this case, and will not be repeated here. The difference between this preferred embodiment and the aforementioned first preferred embodiment is that part of the fins 321B of the heat transfer structure 32B together form a groove 3211B, and the fixing frame 7B is fixedly connected to the heat transfer structure 32B and is provided in In the groove 3211B, at least part of the fixing frame 7B is accommodated in the groove 3211B, which is different from all the fixing frames 7A in the first preferred embodiment exposed outside the heat transfer structure 32A. In addition, in the preferred embodiment, at least two sides of the fixing frame 7B are close to the fins 321B to engage with the heat transfer structure 32A, but not limited to the above.

Please refer to FIG. 11A and FIG. 11B simultaneously. FIG. 11A is a side view of the structure of the water cooling head of the present invention on the base and heat transfer structure of a third preferred embodiment. FIG. 11B is the heat transfer structure of the water cooling head shown in FIG. A conceptual diagram of a fixed frame and a shaft rod provided on the fixed frame. Among them, the water cooling head of this preferred embodiment is roughly similar to that described in the first preferred embodiment of this case, and will not be repeated here. The difference between this preferred embodiment and the aforementioned first preferred embodiment is that the fixed frame 7C is in contact with the base 3 and fixed to the base 3 after being fixed. This design can also shorten the base 3 and the fan blade 44 the distance between. In the preferred embodiment, the heat transfer structure 32C has a hollow area 8 and the fixed connection between the fixing frame 7C and the base 3 is located in the hollow area 8, but not limited to the above, for example, the fixing frame 7C The fixed connection point with the base 3 can be changed to a region on the side of the heat transfer structure 32C ... and other non-heat transfer structures 32C.

Please refer to FIG. 12 to FIG. 14 simultaneously. FIG. 12 is a three-dimensional schematic diagram of the water cooling head of the present invention on a base, heat transfer structure, fixing frame and shaft rod of a fourth preferred embodiment. FIG. A schematic cross-sectional view of the thermal structure, the fixing frame and the shaft rod taken along the bb section line. FIG. 14 is a conceptual schematic view of the fixing frame and the housing shown in FIG. 12 being fixedly connected. Among them, the water cooling head of this preferred embodiment is roughly similar to the first preferred embodiment of this case Those described in the embodiments will not be repeated here. The difference between this preferred embodiment and the aforementioned first preferred embodiment is that the fixing frame 7D is fixedly connected to the housing 2D.

In the preferred embodiment, the inner side of the housing 2D has a plurality of housing fixing portions 25, and the fixing frame 7D includes a base 71 and a plurality of side wing portions 72; wherein, the base 71 is used to fix one end of the shaft 6 to it And one end of each side wing portion 72 is connected to the base 71, and the other end of the side wing portion 72 extends toward the housing 2D to be fixed to the housing fixing portion 25. In addition, in this preferred embodiment, a part of the fins 321D of the heat transfer structure 32D together form a groove 3211D. When the fixing frame 7D is fixed to the housing 2D, at least part of the fixing frame 7D is accommodated in the recess The groove 3211D is in contact with the tip of some fins 321D, but it is not limited to the above. Optionally, each side wing portion 72 has a plurality of side wing perforations 721. The purpose of the side wing perforations 721 is to allow the working medium to pass therethrough and avoid affecting the fluidity of the working medium.

Please refer to FIG. 15 simultaneously, which is a schematic cross-sectional view of the water cooling head and the heat transfer structure of the fixing frame of the fifth preferred embodiment when it is fixedly connected to the housing. Among them, the water cooling head of this preferred embodiment is roughly similar to that described in the fourth preferred embodiment of this case, and will not be repeated here. The difference between this preferred embodiment and the aforementioned fourth preferred embodiment is that when the fixing frame 7E is fixed to the casing (not shown, see FIG. 14), all the fixing frames 7E are exposed to heat transfer Outside the structure 32E, in the preferred embodiment, the bottom of the fixing frame 7E is still in contact with the top of some fins 321E.

Please refer to FIG. 16 at the same time, which is a schematic cross-sectional view of the water cooling head and the heat transfer structure of the fixing frame of the sixth preferred embodiment when it is fixedly connected to the housing. Among them, the water cooling head of this preferred embodiment is roughly similar to that described in the fourth preferred embodiment of this case, and will not be repeated here. The difference between this preferred embodiment and the aforementioned fourth preferred embodiment is that when the fixing frame 7F is fixed to the housing (not shown in the figure, please refer to FIG. 14) At the time of contact, the fixing frame 7F is in contact with the inner side of the base 3, and the fixing frame 7F is in the area of the non-heat transfer structure 32F.

The above-mentioned embodiments are merely illustrative for explaining the principle and effect of the present invention, and explaining the technical features of the present invention, rather than limiting the protection scope of the present invention. Anyone who is familiar with this technology can easily complete the changes or equal arrangements without violating the technical principles and spirit of the present invention, which are within the scope of the present invention. Therefore, the scope of protection of the rights of the present invention should be as listed in the scope of patent application mentioned later.

Claims (28)

A water cooling head includes: a housing; a base, which defines a working space together with the housing, and the working space is filled with a working medium; a heat transfer structure is provided inside the base, wherein, When the outer side of the base is in thermal contact with a heat source to absorb a thermal energy, the thermal energy is sequentially transferred to the working medium through the base and the heat transfer structure; and a pump including a fixing frame, a shaft rod and A blade, the fixing frame is in contact with the base or the heat transfer structure after being fixed, and the fixing frame is provided for the shaft rod to fix the shaft rod, and the fan blade is sleeved on the On the shaft rod, the action space is divided into a heat absorption space and a drainage space, and the fan blade rotates along the shaft bar to drive the working medium to flow upward from the heat absorption space to the drainage space. The water cooling head as described in item 1 of the patent application scope, wherein the heat transfer structure is a fin group or a sintered heat dissipation structure formed by sintering. The water cooling head as described in item 1 of the patent application scope, wherein one end of the shaft rod is fixed on the fixing frame, and the other end of the shaft rod is fixed on the inner side of the casing. The water cooling head as described in item 1 of the patent application scope, wherein the fixing frame is fixedly connected with the heat transfer structure. The water cooling head as described in item 4 of the patent application range, wherein the heat transfer structure includes a plurality of fins, and the fixing frame is fixedly connected to the top of at least a part of the fins of the plurality of fins. The water cooling head as described in item 4 of the patent application scope, wherein the heat transfer structure includes a groove, and at least part of the fixing frame is received in the groove. The water cooling head as described in item 1 of the patent application scope, wherein the fixing frame is fixedly connected with the base. The water cooling head as described in item 1 of the patent application scope, wherein the fixing frame is fixedly connected with the casing. The water cooling head as described in item 8 of the patent application scope, wherein the fixing frame includes at least one side wing portion and a base for fixing one end of the shaft rod, and one end of each side wing portion is connected to the base And the other end of each of the side wings extends toward the housing to be fixed to the housing. The water cooling head as described in item 9 of the patent application scope, wherein the at least one side wing portion includes at least one side wing perforation for the working medium to pass through. The water cooling head as described in item 8 of the patent application range, wherein the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the casing, the fixing frame and at least part of the plurality of fins The tops of the sheets are in contact. The water cooling head as described in item 8 of the patent application scope, wherein the heat transfer structure includes a groove, and when the fixing frame is fixed to the casing, at least part of the fixing frame is accommodated in the groove in. The water cooling head as described in item 8 of the patent application range, wherein the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the casing, the fixing frame contacts the inner side of the base. The water cooling head as described in item 1 of the patent application scope further includes an inlet channel and a drainage channel, and the inlet channel and the drainage channel are respectively connected to the action space; wherein, the water cooling head can be connected to a heat An exchange device, and the heat exchange device is used to cool the working medium discharged from the drainage channel, and the cooled working medium flows into the action space through the water inlet channel. A water cooling head includes: an action space for a working medium to fill in; a heat transfer structure, which is arranged on a base and located in the action space, and absorbs a heat when the base is in thermal contact with a heat source After the thermal energy, the thermal energy is transferred to the working medium through the base and the heat transfer structure in sequence; and a pump, including; a fixing frame, which is in contact with the base or heat transfer after being fixed Structural contact; a shaft rod, which is installed on the fixing frame to be fixed; and a blade, which is sleeved on the shaft rod and divides the action space into a heat absorbing space and a drainage space; wherein, when the blade is along As the shaft rotates, the working medium is driven to flow upward from the heat absorption space to the drainage space. The water cooling head as described in item 15 of the patent application scope, wherein the heat transfer structure is located in the heat absorption space. The water cooling head as described in item 15 of the patent application scope, wherein the heat transfer structure is a fin group or a sintered heat dissipation structure formed by sintering. The water cooling head as described in item 15 of the patent application scope, wherein the fixing frame is fixedly connected with the heat transfer structure. The water cooling head as described in Item 18 of the patent application range, wherein the heat transfer structure includes a plurality of fins, and the fixing frame is fixedly connected to the top of at least a part of the fins of the plurality of fins. The water cooling head as described in item 18 of the patent application range, wherein the heat transfer structure includes a groove, and at least part of the fixing frame is received in the groove. The water cooling head as described in item 15 of the patent application scope, wherein the fixing frame is fixedly connected to the base. The water cooling head described in item 15 of the patent application scope further includes a casing, and the casing and the base jointly define the working space; wherein, the fixing frame is fixedly connected to the casing. The water cooling head as described in Item 22 of the patent application range, wherein the fixing frame includes at least one side wing portion and a base for fixing one end of the shaft rod, and one end of each side wing portion is connected to the base And the other end of each of the side wings extends toward the housing to be fixed to the housing. The water cooling head as described in item 23 of the patent application scope, wherein the at least one wing portion includes at least one wing perforation for the working medium to pass through. The water cooling head as described in Item 22 of the patent application range, wherein the heat transfer structure includes a plurality of fins, and when the fixing frame is fixed to the housing, the fixing frame and at least part of the plurality of fins The tops of the sheets are in contact. The water cooling head as described in Item 22 of the patent application range, wherein the heat transfer structure includes a groove, and when the fixing frame is fixed to the casing, at least part of the fixing frame is accommodated in the groove in. The water cooling head as described in Item 22 of the patent application scope, wherein when the fixing frame is fixedly connected with the casing, the fixing frame is in contact with the inner side of the base. The water cooling head as described in item 15 of the patent application scope further includes an inlet channel and a drainage channel, and the inlet channel and the drainage channel are respectively communicated with the action space; wherein, the water cooling head can be connected to a heat An exchange device, and the heat exchange device is used to cool the working medium discharged from the drainage channel, and the cooled working medium flows into the action space through the water inlet channel.