TW202033924A - Fluid cooling device - Google Patents

Abstract

A fluid cooling device has a heat sink cover, a heat sink base, and a fluid pump. A connecting opening is defined on the heat sink cover. A heat exchange chamber is defined between the heat sink base and the heat sink upper cover longitudinally attached to each other, and a heat exchange unit is arranged in the chamber. The fluid pump has a pump housing and a driving assembly, and the pump housing has an inner space and a connecting tube communicated with each other. An impeller of the driving assembly is accommodated in the inner space, the connecting tube is longitudinally inserted into the connecting opening and is seamlessly fixed to each other, and an insulation gap is defined between the pump housing and the heat sink cover via the connecting tube. Thereby, the heat sink and the fluid pump are thermal isolated and seamlessly connected without a waterproof gasket therebetween.

Description

Fluid cooling device

The present invention is related to fluid cooling, and particularly refers to a seamlessly integrated fixed fluid cooling device.

Regarding a fluid cooling device that uses a fluid such as water to transfer heat, it includes a heat absorbing structure and a fluid pump for drawing the fluid in the heat absorbing structure to circulate. There is a single chamber in the heat absorption structure, and the fluid flows in the single chamber.

Because the heat absorbed by the heat absorption structure will be transferred to the fluid pump, the fluid pump is in a high-heat working environment, causing all electronic parts in the fluid pump to work in a high-heat environment for a long time. In addition to affecting the function of the electronic parts itself, it will even Damage the electronic parts and cause malfunctions.

The existing fluid cooling device uses a partial connection between the fluid pump and the heat absorption structure to isolate most of the heat from the heat absorption structure.

However, the existing partial connection structure between the fluid pump and the heat absorption structure has gaps where the fluid is easy to leak. Therefore, it is necessary to add a waterproof gasket to the existing partial connection structure, but the waterproof gasket itself will easily deteriorate after a period of time. Once the waterproof gasket deteriorates, the existing partial connection structure will still leak fluid.

The purpose of the present invention is to provide a fluid cooling device, which can overcome the problem that the heat of the heat absorber will conduct and affect the operation of the fluid pump; it can also smoothly solve the fluid leakage caused by partial connection without using a waterproof gasket. problem.

In order to achieve the above object, the present invention provides a fluid cooling device, which includes: a heat-absorbing upper cover with an interface; a heat-absorbing base having a heat exchange cavity and a heat exchange unit arranged in the heat exchange cavity. An exchange cavity is formed between the heat-absorbing upper cover and the heat-absorbing base, and the heat-absorbing base and the heat-absorbing upper cover are longitudinally attached to each other, and the interface is longitudinally opened on the heat-absorbing upper cover; and a fluid pump including a pump housing and a device A drive assembly in the pump housing, the pump housing system has a pump inner space, the drive assembly has an impeller housed in the pump inner space, and the pump housing also has an outward protrusion and communicates with the pump An adapter tube in the inner space, the adapter tube is longitudinally inserted into the adapter port and seamlessly connected and fixed to each other, and the pump casing and the heat absorption upper cover maintain a heat insulation gap with each other through the adapter tube.

Compared with the prior art, the present invention has the following effects: it can ensure that the heat of the heat absorber will not be transferred to the fluid pump by the insulation gap, and can ensure the connection or joint (that is, the later described There is no gap between the plug-in place or the sticking place, so there is no need to use the easily degraded waterproof gasket.

The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only provided for reference and description, and are not intended to limit the present invention.

The present invention provides a fluid cooling device, as shown in FIG. 8, which mainly uses fluid as a medium to take away heat from a heat source (not shown in the figure) and dissipate the heat through a heat sink (not shown in the figure). The fluid is not limited in the present invention, and water is taken as an example for description in this embodiment.

As shown in FIGS. 7 and 8, the fluid cooling device of the present invention includes: a heat absorber 100 and a fluid pump 500, and preferably also includes an outer cover 900.

As shown in FIGS. 1 to 3 in conjunction with FIGS. 7 to 10, the heat absorber 100 includes a heat-absorbing upper cover 1 and a heat-absorbing base 2. The heat sink 100 is used to absorb heat from a heat source not shown in the figure. Generally speaking, the bottom surface of the heat sink 100 is attached to the heat source.

The heat absorbing upper cover 1 has an upper cover cavity C1 inside, and the heat absorbing upper cover 1 is provided with an interface 121 communicating with the upper cover cavity C1.

The heat absorption base 2 has a heat exchange cavity C2 and a heat exchange unit 22. The heat exchange cavity C2 is formed between the heat absorption upper cover 1 and the heat absorption base 2, and the heat exchange unit 22 is disposed in the heat exchange cavity C2. Therefore, the heat absorber 100 has a double cavity, that is, an upper cover cavity C1 and a heat exchange cavity C2. The fluid first passes through the lower heat exchange cavity C2 and then through the upper upper cover cavity C1 through the flow channel, and finally faces The output from the interface 121.

The heat-absorbing upper cover 1 and the heat-absorbing base 2 are longitudinally attached to each other, and the interface 121 is longitudinally opened on the heat-absorbing upper cover 1.

As shown in FIGS. 4 to 6 in conjunction with FIGS. 7 to 10, the fluid pump 500 includes a pump housing 5 and a driving assembly 6. The fluid pump 500 is used to draw the fluid in the heat absorber 100 to circulate, so as to use the fluid as a medium to take away heat.

The pump housing 5 has a pump inner space S inside. The driving assembly 6 is disposed in the pump housing 5, and the driving assembly 6 has an impeller 621, and the impeller 621 is accommodated in the internal space S of the pump.

The pump housing 5 also has a connecting pipe 511 protruding outwards, and the connecting pipe 511 is connected to the pump inner space S, and the connecting pipe 511 preferably protrudes longitudinally. As shown in Figure 9, the adapter tube 511 is longitudinally inserted into the aforementioned adapter port 121, and is seamlessly connected to each other at the insertion point between the outer periphery of the adapter tube 511 and the inner periphery of the adapter port 121. Therefore, the joint There are no gaps and no waterproof gaskets are needed. At the same time, the pump housing 5 can maintain a heat-insulating gap D with the heat-absorbing upper cover 1 through the connected connecting pipe 511 (see FIG. 9), so as to isolate most of the heat sink 100 through the heat-insulating gap D. Heat, in turn, prevents most of the electronic components contained in the drive assembly 6 from being affected by the heat.

A raised portion 5111 can also be formed on the outer periphery of the connecting pipe 511 (as shown in Figures 5 and 9), and the raised portion 5111 also protrudes longitudinally outward from the pump housing 5 so that the raised portion 5111 can be stable The ground is supported between the pump housing 5 and the heat-absorbing upper cover 1 to ensure that the required thermal insulation gap D can be generated between the adjacent bottom surface 510 of the pump housing 5 and the adjacent top surface 111 of the heat-absorbing upper cover 1.

Preferably, the pump housing 5 includes a pump base 51, a pump upper cover 52 and a leak-proof component 53. The pump upper cover 52 is longitudinally covered on the pump base 52, and the leakage prevention member 53 is arranged between the pump base 51 and the pump upper cover 52. As for the aforementioned pump inner space S, is formed between the pump base 51 and the pump upper cover 52.

As for the flow channel design of the fluid pump 500, the aforementioned connecting pipe 511 (having an elevated portion 5111) protrudes longitudinally on the adjacent bottom surface 510 of the pump base 51; the pump base 51 is also provided with a fluid discharge port communicating with each other horizontally. 513 and a pump opening 514, so that the pump opening 514 can communicate with the connecting pipe 511 through the pump inner space S, that is, the connecting pipe 511 and the fluid outlet 513 communicate with each other through the pump inner space S.

Preferably, the driving assembly 6 includes a stator 61 and a rotor 62 having the aforementioned impeller 621. The stator 61 (containing most of the aforementioned electronic components not shown in the figure) is arranged on one side of the pump upper cover 52, and the rotor 62 is rotatably pivoted on the other side of the pump upper cover 52 corresponding to the inner space S of the pump, so that the stator 61 and the rotor 62 Opposite each other across the pump upper cover 52 (see FIG. 9).

The present invention does not limit the aforementioned seamless bonding and fixing method, and it can be 3D printing, casting or welding. When the 3D printing or casting method is selected, the fluid pump 5, the heat-absorbing upper cover 1 and the heat-absorbing base 2 can be formed at one time, so that the connecting pipe 511 and the connecting port 121 can be seamlessly combined and fixed with each other. In this embodiment, welding is taken as an example for description. Therefore, in order to provide welding, both the heat-absorbing upper cover 1 and the pump housing 5 must be made of metal.

Preferably, the heat absorber 100 in the present invention can also be fixed by welding, so as to have the effect of no gap and no need to use a waterproof gasket as described above, as detailed below.

As shown in Figures 1 to 3 and in conjunction with Figures 7 to 10, the heat absorbing base 2 in the heat absorber 100 is also made of metal material to facilitate vertical attachment to the aforementioned heat absorbing upper cover 1 which is also made of metal material, and The joints are welded and fixed to each other.

In order to facilitate welding, the heat-absorbing base 2 has a surrounding plate 21 surrounded by the corresponding heat exchange cavity C2, and the surrounding plate 21 has a bonding top surface 211. One surface of the heat exchange cavity C2 is formed by recessing a partial area of the attaching top surface 211. In detail, it is formed by recessing in a direction away from the heat absorption upper cover 1 relative to the attaching top surface 211. The heat-absorbing upper cover 1 has a bonding bottom surface 110 corresponding to the heat exchange cavity C2 and the bonding top surface 211. At this time, the bonding bottom surface 110 of the heat-absorbing upper cover 1 can be bonded to the bonding top surface 211 of the heat-absorbing base 2 , And welded and fixed to each other at the joint.

In addition, the heat-absorbing upper cover 1 may preferably further include a cover body 11 and a combination plate 12 that are longitudinally combined with each other. The upper cover cavity C1 is formed between the cover body 11 and the combination plate 12, and the interface 121 is opened于组合板12。 In the combination board 12. The combination board 12 is attached to the cover body 11, and is welded and fixed to each other at the attachment point. Therefore, in order to facilitate welding, the heat-absorbing upper cover 1 has a structure as described below.

The cover body 11 has an adjacent top surface 111 and a surrounding step 112. The surrounding step 112 is surrounded by the upper cover cavity C1 and protrudes upward in the upper cover cavity C1. In detail, the surrounding step 112 protrudes out of the upper cover cavity C1 toward the combination plate 12, so that the surrounding step 112 There is a top surface 1121 attached. The combined board 12 has a bonding bottom surface 120 corresponding to the upper cover cavity C1 and the bonding top surface 1121. At this time, the bonding bottom surface 120 of the combined board 12 can be bonded to the bonding top surface 1121 of the cover body 11 , And welded and fixed to each other at the joint. It must be noted that one surface of the upper cover cavity C1 is recessed in a direction away from the combined board 12 relative to the attaching top surface 1121.

In this way, the present invention can be fixed into an integral structure that cannot be disassembled by welding, that is, a single structure having the heat absorber 100 and the fluid pump 500. Furthermore, the present invention can also have the following effects by welding and fixing: it can save time and effort without excessive assembly; it can reduce the joints or joints caused by assembly, thereby reducing the probability of fluid leakage; all metal The welded structure can effectively increase the anti-evaporation rate and reduce the joints or joints caused by assembly, which can also greatly reduce the evaporation.

As for the flow channel design of the heat absorber 100, a fluid suction port 113 is formed in the transverse direction of the heat-absorbing upper cover 1, and the heat-absorbing upper cover 1 is also longitudinally provided with a first upper cover opening 114 and a second upper cover opening 115 away from each other. The fluid suction port 113 communicates with the first upper cover opening 114, the first upper cover opening 114 communicates with the second upper cover opening 115 through the lower heat exchange cavity C2, and the second upper cover opening 115 faces upward through the upper upper cover cavity C1. The interface 121 is connected.

As shown in Figures 9 and 10, the attachment bottom surface 110 of the heat-absorbing upper cover 1 and the cavity inner bottom surface of the heat-absorbing base 2 (the inner bottom surface of the heat exchange cavity C2, without element symbols) are respectively attached to two opposite sides of the heat exchange unit 22 The surface, that is, the heat exchange unit 22 is vertically sandwiched between the heat-absorbing upper cover 1 and the heat-absorbing base 2 to facilitate heat conduction. As shown in FIGS. 11 and 12, the heat exchange unit 22 in this embodiment includes two rows of heat exchange rows spaced apart from each other, and each row of heat exchange rows includes a plurality of heat dissipation fins; the aforementioned first upper cover opening 114 is opposite to The heat exchange units 22 are staggered to facilitate the passage of fluid. In this embodiment, the first upper cover opening 114 corresponds to the interval between the two rows of heat exchange rows.

As shown in Figure 1, Figure 2 and Figure 12, the attachment bottom surface 110 of the cover body 11 can also protrude longitudinally with two protruding walls facing each other. The two protruding walls include a first protruding wall 116 and a first protruding wall 116. Two convex walls 117. The two convex walls protrude into the heat exchange cavity C2, and protrude until they abut the heat absorption base 2. The heat exchange unit 22 is laterally sandwiched between the two convex walls, and the perforated first upper cover opening 114 is located between the two convex walls and is close to the first convex wall 116. As for the elongated aforementioned The second upper cover opening 115 is located outside the two convex walls and adjacent to the second convex wall 117. The first convex wall 116 abuts on the inner periphery of the heat exchange cavity C2, the length of the second convex wall 117 and the second upper cover The length of the opening 115 corresponds to the width of the heat exchange unit 22. In this way, the fluid is output from the first upper opening 114, then flows through the heat dissipation fins in a multi-channel manner for heat exchange, and finally converges in the second upper opening 115 and flows upward into the upper cover cavity C1.

In addition, as shown in FIGS. 3, 6 and 7 to 9, in order to have a balanced, stable and non-deflection effect when the fluid pump 500 is plugged into the adapter 121 of the heat absorber 100 with the adapter tube 511 correspondingly, In particular, a first rib 1181 protrudes longitudinally from the adjacent top surface 111 of the heat-absorbing upper cover 1, and a second rib 512 protrudes longitudinally from the adjacent bottom surface 510 of the pump housing 5. The first rib 1181 and the second The protruding ribs 512 are arranged corresponding to the connecting pipe 511. In this embodiment, the first protruding rib 1181 and the second protruding rib 512 are correspondingly arranged at two opposite positions of the connecting pipe 511, so that the first protruding rib 1181 and the second protruding The rib 512 is supported between the adjacent bottom surface 510 and the adjacent top surface 111 to ensure that the combined fluid pump 500 and the heat absorber 100 will not be relatively skewed. Furthermore, the heat-absorbing upper cover 1 of the heat absorber 100 and the pump housing 5 of the fluid pump 500 may also have a convex part 118 and a concave part 515, respectively. The convex part 118 corresponds to the concave part 515 and is combined with each other at intervals, so that the fluid pump When 500 is combined with the heat absorber 100, it can have a positioning effect. Among them, the convex portion 118 protrudes upward from the adjacent top surface 111, and the first convex rib 1181 protrudes upward from the top surface of the convex portion 118. In addition, the outer cover 900 is longitudinally covered and fixed to the fluid pump 500.

The heat sink 100 and the fluid pump 500 can also be rectangular bodies to facilitate assembly and welding.

In summary, the fluid cooling device of the present invention can indeed achieve the intended purpose of use, thereby solving the shortcomings of the existing technology. Because of its patentability, the application is filed in accordance with the Patent Law. Please check in detail and grant the patent for this case to protect The rights of the inventor.

The above are only the preferred and feasible embodiments of the present invention, and are not limited to the scope of the present invention. Any equivalent structural changes made by using the description and drawings of the present invention are all included in the present invention. Within the scope of the rights, he shall be Chen Ming.

100: heat sink

1: Heat-absorbing upper cover

11: Cover body

110: Attach to the bottom

111: Adjacent top surface

112: Around the steps

1121: Glue to the top

113: Fluid suction port

114: first upper cover opening

115: second upper cover opening

116: The first convex wall

117: Second convex wall

118: Convex

1181: first rib

12: Combination board

120: Attach the bottom surface

121: interface

2: Heat absorption base

21: Around the plate

211: Glutton Top

22: Heat exchange unit

500: fluid pump

5: Pump housing

51: Pump base

510: Adjacent bottom surface

511: Takeover

5111: Elevated Department

512: second rib

513: fluid outlet

514: pump opening

515: recess

52: Pump cover

53: Leakproof parts

6: Drive components

61: stator

62: Rotor

621: Impeller

900: outer cover

C1: Upper cover cavity

C2: Heat exchange cavity

D: insulation gap

S: Space in the pump

Fig. 1 is a perspective exploded view of a heat sink in a fluid cooling device of the present invention when viewed from above.

Figure 2 is a perspective exploded view of the heat absorber in the fluid cooling device of the present invention when viewed from the bottom.

Fig. 3 is a perspective view of the heat absorber in the fluid cooling device of the present invention.

4 is a perspective exploded view of the fluid pump in the fluid cooling device of the present invention when viewed from above.

5 is a perspective exploded view of the fluid pump in the fluid cooling device of the present invention when viewed from the bottom.

Figure 6 is a three-dimensional assembly view of the fluid pump in the fluid cooling device of the present invention.

Fig. 7 is a perspective exploded view of the fluid cooling device of the present invention.

Figure 8 is a three-dimensional assembly schematic diagram of the fluid cooling device of the present invention.

Fig. 9 is a schematic longitudinal sectional view of the fluid cooling device of the present invention for the fluid suction port.

Fig. 10 is a schematic longitudinal sectional view of the fluid cooling device of the present invention for the fluid discharge port.

11 is a schematic cross-sectional view of the fluid cooling device of the present invention with respect to the space in the pump.

Fig. 12 is a schematic cross-sectional view of the fluid cooling device of the present invention for the heat exchange cavity.

100: heat sink

1: Heat-absorbing upper cover

11: Cover body

110: Attach to the bottom

113: Fluid suction port

114: first upper cover opening

115: second upper cover opening

116: The first convex wall

117: Second convex wall

1181: first rib

12: Combination board

121: interface

2: Heat absorption base

211: Attach to the top surface

22: Heat exchange unit

500: fluid pump

5: Pump housing

51: Pump base

511: Takeover

5111: Elevated Department

512: second rib

52: Pump cover

53: Leakproof parts

6: Drive components

61: stator

62: Rotor

900: outer cover

C1: Upper cover cavity

C2: Heat exchange cavity

D: insulation gap

S: Space in the pump

Claims (11)

A fluid cooling device includes: A heat-absorbing upper cover is provided with an interface; A heat absorption base having a heat exchange cavity and a heat exchange unit arranged in the heat exchange cavity. The heat exchange cavity is formed between the heat absorption upper cover and the heat absorption base, and the heat absorption base and the heat absorption upper cover are longitudinally attached to each other Connected, the interface is opened longitudinally on the heat-absorbing upper cover; and A fluid pump includes a pump housing and a drive assembly arranged in the pump housing. The pump housing system has an inner space of the pump, the drive assembly has an impeller received in the inner space of the pump, and the pump housing The body also has an adapter tube that protrudes outwards and communicates with the inner space of the pump. The adapter tube is longitudinally inserted into the adapter port and is seamlessly fixed to each other. The pump housing and the heat-absorbing upper cover maintain each other through the adapter tube An insulation gap. The fluid cooling device according to claim 1, wherein a raised portion is formed on the outer periphery of the connecting pipe, and the raised portion protrudes from the pump housing in a longitudinal direction outward, and the raised portion is supported by the pump housing The heat insulation gap is generated between the body and the heat-absorbing upper cover. The fluid cooling device according to claim 1, wherein the pump housing includes a pump base and a pump upper cover longitudinally covering the pump base, and the pump inner space is formed between the pump upper cover and the pump base, And there is a leak-proof part between the upper cover of the pump and the pump base; the pump base is longitudinally protruding with the connecting pipe, the pump base is also horizontally provided with a fluid discharge port and a pump opening communicating with each other, and the pump opening passes through The inner space of the pump communicates with the connecting pipe; the drive assembly includes a stator and a rotor with the impeller, the stator is arranged on one side of the pump upper cover, and the rotor is arranged on the other side of the pump upper cover corresponding to the pump inner space , The stator and the rotor face each other across the pump cover. The fluid cooling device according to claim 1, wherein the fluid pump, the heat-absorbing upper cover, and the heat-absorbing base selectively use one of 3D printing and casting to make the connection pipe and the interface seamless. Combine fixed. The fluid cooling device according to claim 1, wherein the seamless joint fixing system between the adapter tube and the adapter port is welded and fixed to each other, and the heat absorption upper cover and the pump housing are made of metal materials. The fluid cooling device according to claim 5, wherein the heat absorption base is also made of metal material, and the heat absorption base is longitudinally attached to the heat absorption upper cover and is welded and fixed to each other at the attachment point; the heat absorption base has a corresponding heat exchange cavity surrounding A surrounding plate of the surrounding plate, the surrounding plate has an attached top surface, one surface of the heat exchange cavity is recessed in a direction away from the heat-absorbing upper cover relative to the attached top surface, and the heat-absorbing upper cover has a corresponding heat exchange cavity and the A sticking bottom surface covered by the sticking top surface, the sticking bottom surface sticking to the sticking top surface and being welded and fixed to each other; the heat-absorbing upper cover includes a cover body and a combination board that are longitudinally combined with each other, and the interface is opened on the The combined board is attached to the cover body and fixed to each other by welding at the attaching place. The fluid cooling device according to claim 1, wherein the heat-absorbing upper cover has an upper cover cavity, and the interface is connected to the upper cover cavity. The fluid cooling device according to claim 7, wherein the heat-absorbing upper cover includes a cover body and a combined plate that are longitudinally combined with each other, and the cover body has a surrounding step corresponding to the surrounding of the upper cover cavity, and the surrounding step faces closer to the combination The direction of the board protrudes out of the upper cover cavity, the surrounding step has an attachment top surface, the combination board has an attachment bottom surface corresponding to the upper cover cavity and the attachment top surface, and the attachment bottom surface is attached to The top surface is attached and seamlessly combined and fixed to each other. The fluid cooling device according to claim 1, wherein the heat-absorbing upper cover is provided with a fluid suction port in the transverse direction and a first upper cover opening and a second upper cover opening which are away from each other in the longitudinal direction, and the fluid suction port is connected to the first The upper cover opening, the first upper cover opening communicates with the second upper cover opening through the heat exchange cavity, the second upper cover opening communicates with the interface; the heat absorption upper cover and the heat absorption base are respectively attached to the heat exchange unit along the longitudinal direction The first upper cover opening is staggered relative to the heat exchange unit to facilitate the passage of fluid; the side of the heat absorption upper cover attached to the heat absorption base is longitudinally protruding with two opposite convex walls, the two convex walls Protruding into the heat exchange cavity and abutting the heat absorption base, the heat exchange unit is transversely sandwiched between the two convex walls. The two convex walls include a first convex wall and a second convex wall. The perforated first upper cover opening is located between the two convex walls and is close to the first convex wall, the elongated second upper cover opening is located outside the two convex walls and adjacent to the second convex wall, the The first convex wall abuts against the inner periphery of the heat exchange cavity, and the length of the second convex wall and the length of the second upper cover opening correspond to the width of the heat exchange unit. The fluid cooling device according to claim 1, wherein the pump casing and the heat-absorbing upper cover that are adjacent to each other longitudinally apart further have two ribs, and the two ribs are arranged corresponding to the connecting pipe and supported on the Between one side of the pump casing and the side of the heat-absorbing upper cover. The fluid cooling device according to claim 1, wherein the heat-absorbing upper cover and the heat-absorbing base are combined with each other to form a heat sink, and the heat sink and the fluid pump are both rectangular and have a convex portion and a concave portion, respectively, and the convex portion is opposite to each other. The recesses should be combined at intervals.

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