TWI686584B - 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 invention relates to fluid cooling, and particularly refers to a fluid cooling device which is seamlessly combined with a fixed type.

Regarding a fluid cooling device that uses a fluid such as water to transfer heat, it includes a heat absorption structure and a fluid pump used to draw fluid circulating in the heat absorption structure. The heat-absorbing structure has a single cavity, and the fluid flows in the single cavity.

Because the heat absorbed by the heat absorbing structure is transmitted to the fluid pump, the fluid pump is placed in a high-heat working environment, which causes all electronic parts in the fluid pump to work in a high-temperature environment for a long time. In addition to affecting the function of the electronic parts themselves, it will even Damage electronic components and cause malfunctions.

The existing fluid cooling device changes the local connection between the fluid pump and the heat absorption structure to isolate most of the heat from the heat absorption structure.

However, the existing local connection structure between the fluid pump and the heat absorbing structure, instead, has a gap where the fluid is prone to leak. Therefore, a waterproof gasket must be added to the existing local connection structure, but the waterproof gasket itself will have a problem that it is easy to deteriorate after a period of time. Once the waterproof gasket deteriorates, the existing local connection structure will still leak fluid.

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

In order to achieve the above object, the present invention provides a fluid cooling device, including: a heat-absorbing upper cover with an interface; a heat-absorbing base with a heat exchange cavity and a heat exchange unit disposed in the heat exchange cavity, the heat 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 opened longitudinally on the heat-absorbing upper cover; and a fluid pump includes a pump housing and a setting A driving component in the pump housing, the pump housing is provided with an inner space of the pump, the driving component has an impeller accommodated in the inner space of the pump, the pump housing also has an outward protrusion and communicates with the pump An adaptor tube in the inner space, the adaptor tube is longitudinally inserted into the adaptor interface and is seamlessly combined and fixed with each other. The pump housing maintains an insulation gap with the heat-absorbing upper cover through the adaptor tube.

Compared with the prior art, the present invention has the following effects: it can ensure that the heat of the heat absorber is not conducted to the fluid pump by the heat insulation gap, and can ensure the connection or joint by seamlessly fixing (i.e. (Plug-in or stick-on) must have no gaps, so there is no need to use deteriorating waterproof gaskets.

100: heat sink

1: endothermic cover

11: Cover body

110: Attach to the bottom

111: adjacent top surface

112: Around the steps

1121: The top surface

113: fluid intake

114: First upper cover opening

115: Second upper cover opening

116: The first convex wall

117: Second convex wall

118: convex

1181: The first rib

12: Combination board

120: Attach to the bottom

121: Interface

2: Endothermic base

21: Around the plate

211: The top surface

22: heat exchange unit

500: fluid pump

5: pump housing

51: Pump base

510: adjacent bottom surface

511: Take over

5111: Elevated section

512: second rib

513: Fluid outlet

514: pump opening

515: recess

52: pump cover

53: Leakproof parts

6: drive assembly

61: stator

62: rotor

621: Impeller

900: outer cover

C1: upper cover cavity

C2: heat exchange chamber

D: Insulation gap

S: space in the pump

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

2 is an exploded perspective view of the heat sink in the fluid cooling device of the present invention when viewed from below.

3 is a perspective assembly view of a heat sink in a fluid cooling device of the present invention.

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

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

6 is a perspective assembly view of the fluid pump in the fluid cooling device of the present invention.

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

8 is a schematic perspective view of the fluid cooling device of the present invention.

9 is a schematic longitudinal sectional view of the fluid cooling device of the present invention with respect to a fluid suction port.

10 is a schematic longitudinal cross-sectional view of a fluid discharge device of the fluid cooling device of the present invention.

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

12 is a schematic cross-sectional view of the fluid cooling device of the present invention directed to the heat exchange chamber.

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

The present invention provides a fluid cooling device, as shown in FIG. 8, mainly in that the fluid is used as a medium to take away heat from a heat source (not shown), and dissipate the heat through a heat dissipation row (not shown). The fluid of the present invention is not limited. In this embodiment, water is used as an example for description.

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 further includes a housing 900.

As shown in FIGS. 1 to 3 together with FIGS. 7 to 10, the heat sink 100 includes a heat-absorbing upper cover 1 and a heat-absorbing base 2. The heat absorber 100 is used to absorb heat from an unshown heat source. Generally speaking, the bottom surface of the heat absorber 100 is attached to the heat source.

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

The heat absorption base 2 has a heat exchange cavity C2 and a heat exchange unit 22. The heat exchange chamber C2 is formed between the heat-absorbing upper cover 1 and the heat-absorbing base 2, and the heat exchange unit 22 is disposed in the heat exchange chamber C2. Therefore, the heat absorber 100 has a double cavity, that is, the upper cover cavity C1 and the heat exchange cavity C2, and the fluid After passing through the flow channel, it first passes through the heat exchange chamber C2 of the lower layer, then passes through the upper cover chamber C1 of the upper layer, and finally outputs upward from the interface 121.

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

As shown in FIGS. 4 to 6 together 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 fluid circulating in the heat absorber 100, so that the fluid is used as a medium to remove heat.

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

The pump housing 5 also has an connecting tube 511 protruding outward, and connecting the connecting tube 511 to the space S in the pump, and the connecting tube 511 preferably protrudes longitudinally. As shown in FIG. 9, the connecting tube 511 is longitudinally inserted into the aforementioned connecting port 121, and is seamlessly fixed to each other at the connecting point between the outer periphery of the connecting tube 511 and the inner peripheral edge of the connecting port 121, so at this connecting point There is no gap at all without the use of waterproof gaskets. At the same time, the pump housing 5 can also maintain a heat insulation gap D (see FIG. 9) with the heat-absorbing upper cover 1 through the inserted connecting pipe 511 to isolate most of the heat absorber 100 by the heat insulation gap D Heat, in turn, prevents most electronic components inside the drive assembly 6 from being affected by heat.

An elevated portion 5111 (as shown in FIGS. 5 and 9) can also be formed on the outer periphery of the connecting tube 511, and the elevated portion 5111 also protrudes outward from the pump housing 5 in the longitudinal direction, so that the elevated portion 5111 can be stabilized It 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 leakage preventing member 53. The pump upper cover 52 is longitudinally closed on the pump base 52, and the leakage preventing member 53 is provided between the pump base 51 and the pump upper cover 52, and the aforementioned pump internal space S is formed between the pump base 51 and the pump upper cover 52.

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

Preferably, the driving assembly 6 includes a stator 61 and a rotor 62. The rotor 62 has the impeller 621 described above. The stator 61 (with many of the aforementioned electronic parts not shown in the figure) is provided 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 pump internal space S, so that the stator 61 and the rotor 62 The upper covers 52 face each other across the pump (see FIG. 9).

The present invention does not limit which method is used for the above-mentioned seamless joint fixation, which 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 connection tube 511 and the connection interface 121 are seamlessly combined and fixed with each other. In this embodiment, welding is used as an example. 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 same effect as described above without gaps and without the use of waterproof gaskets, as described in detail below.

As shown in FIGS. 1 to 3 together with FIGS. 7 to 10, the heat absorption base 2 in the heat absorber 100 is also made of metal material, so as to facilitate longitudinal attachment to the aforementioned heat absorption upper cover 1 also made of metal material, and The joints are fixed to each other by welding.

In order to facilitate welding, the heat-absorbing base 2 has a surrounding plate 21 surrounded by the heat exchange cavity C2, and the surrounding plate 21 has a contacting top surface 211. One surface of the heat exchange chamber C2 is formed by recessing and forming a partial area of the attachment top surface 211. Specifically, it is recessed in a direction away from the heat-absorbing upper cover 1 with respect to the attachment 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 fixed to each other by welding.

In addition, the heat-absorbing upper cover 1 may preferably further include a cover body 11 and a combination plate 12 longitudinally combined with each other. The above-mentioned upper cover cavity C1 is formed between the cover body 11 and the combination plate 12, and the connection interface 121 is opened于组合板12。 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 location. Therefore, in order to facilitate welding, the heat-absorbing upper cover 1 has the following structure.

The cover body 11 has an adjacent top surface 111 and a surrounding step 112. The surrounding step 112 corresponds to 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 With a affixed top surface 1121. The combination 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 combination board 12 can be bonded to the bonding top surface 1121 of the cover body 11 , And fixed to each other by welding. It must be noted that one surface of the upper cover cavity C1 is recessed in a direction away from the combination 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 removed by welding, that is, a single structural member having the heat absorber 100 and the fluid pump 500. Furthermore, the invention is fixed by welding, and can also have the following effects: it can save time and labor without excessive assembly; it can reduce the connection or joint caused by assembly, thus reducing the probability of fluid leakage; all metal The welding structure can effectively improve the anti-evapotranspiration rate, and reduce the joints or joints caused by assembly, and also greatly reduce the evapotranspiration.

As for the flow path design of the heat absorber 100, a fluid suction port 113 is laterally opened in 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 chamber C2, and the second upper cover opening 115 faces upwardly through the upper upper cover cavity C1. The interface 121 is connected.

As shown in FIGS. 9 and 10, the bottom surface 110 of the heat-absorbing upper cover 1 and the bottom surface of the cavity of the heat-absorbing base 2 (the inner bottom surface of the heat exchange cavity C2, without the component symbol) are respectively attached to the heat exchange unit 22 The two opposite surfaces, that is, the heat exchange unit 22 are 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 again, in this embodiment, the heat exchange unit 22 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 first upper cover opening 114 is opposite to The heat exchange unit 22 is staggered to facilitate the passage of fluid. In this embodiment, the first upper cover opening 114 corresponds to the space between the two rows of heat exchange rows.

As shown in FIGS. 1, 2 and 12, the bottom surface 110 of the cover body 11 may also protrude longitudinally with two convex walls facing each other. The two convex walls include a first convex wall 116 and a first convex wall 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 horizontally sandwiched between the two convex walls, and the perforated first upper cover opening 114 is located between the two convex walls and close to the first convex wall 116, as for the elongated aforesaid The second upper cover opening 115 is located outside the two convex walls and is adjacent to the second convex wall 117, the first convex wall 116 abuts against the inner periphery of the heat exchange chamber 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 gathers 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-deflecting effect when the fluid pump 500 is correspondingly inserted into the connecting port 121 of the heat sink 100 with the connecting tube 511, In particular, a first rib 1181 protrudes longitudinally on the adjacent top surface 111 of the heat-absorbing upper cover 1, and a second rib 512 protrudes longitudinally on the adjacent bottom surface 510 of the pump housing 5 The rib 512 corresponds to the configuration of the connecting tube 511. In this embodiment, the first rib 1181 and the second rib 512 are correspondingly arranged at two relative positions of the connecting tube 511, so that the first rib 1181 and the second rib The rib 512 is supported between the adjacent bottom surface 510 and the adjacent top surface 111, so as to ensure that the combined fluid pump 500 and the heat sink 100 will not be relatively inclined. 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 portion 118 and a concave portion 515, respectively, and the convex portion 118 corresponds to the concave portion 515 to be spaced apart from each other, in order to flow When the body pump 500 is combined with the heat sink 100, it can have a positioning effect. The convex portion 118 protrudes upward from the adjacent top surface 111, and the first rib 1181 protrudes upward from the top surface of the convex portion 118. In addition, the cover 900 is longitudinally covered and fixed to the fluid pump 500.

The heat absorber 100 and the fluid pump 500 may also be rectangular bodies, which is convenient for assembly and welding.

In summary, the fluid cooling device of the present invention can indeed achieve the intended purpose, and then solve the lack of existing technology, and because of its patentability, the application is made in accordance with the Patent Law, please check and grant the patent in this case to protect Inventor's rights.

The above are only the preferred and feasible embodiments of the present invention, and therefore do not limit the scope of the patent of the present invention. Any equivalent structural changes in the description and drawings of the present invention are equally included in the present invention. Within the scope of the rights, Chen Ming.

100: heat sink

1: endothermic cover

11: Cover body

110: Attach to the bottom

113: fluid intake

114: First upper cover opening

115: Second upper cover opening

116: The first convex wall

117: Second convex wall

1181: The first rib

12: Combination board

121: Interface

2: Endothermic base

211: The top surface

22: heat exchange unit

500: fluid pump

5: pump housing

51: Pump base

511: Take over

5111: Elevated section

512: second rib

52: pump cover

53: Leakproof parts

6: drive assembly

61: stator

62: rotor

900: outer cover

C1: upper cover cavity

C2: heat exchange chamber

D: Insulation gap

S: space in the pump

Claims (11)

A fluid cooling device includes: a heat-absorbing upper cover with an engaging interface and a longitudinally protruding first rib; a heat-absorbing base with a heat exchange cavity and a heat exchange unit disposed in the heat exchange cavity, the heat 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 includes a pump housing and a setting A driving component in the pump housing, the pump housing is provided with an inner space of the pump, the driving component has an impeller accommodated in the inner space of the pump, the pump housing longitudinally protrudes a second rib and further It has an adaptor tube that protrudes outward and communicates with the inner space of the pump. The outer periphery of the adaptor tube is formed with an elevated portion. The engaged tube is longitudinally inserted into the engaging interface and seamlessly fixed with each other. The elevated portion is stable Supported between the pump housing and the heat-absorbing upper cover to ensure that an insulation gap is created between an adjacent bottom surface of the pump housing and an adjacent top surface of the heat-absorbing upper cover, the first rib and the The second rib is supported between the adjacent bottom surface and the adjacent top surface to ensure that the fluid pump and the heat-absorbing upper cover will not be relatively deflected. The fluid cooling device according to claim 1, wherein the elevated portion protrudes outward from the pump housing in the longitudinal direction. The fluid cooling device according to claim 1, wherein the pump housing includes a pump base and a pump upper cover longitudinally covered on the pump base, the pump inner space is formed between the pump upper cover and the pump base, A leak-proof member is arranged between the pump upper cover and the pump base; the pump base is longitudinally convex with the connecting tube and the second convex rib, and the pump base is also laterally provided with a fluid discharge port and a pump communicating with each other Opening, the pump opening communicates with the connecting pipe through the pump internal space; the drive assembly includes a stator and a rotor with the impeller, the stator is provided on the side of the pump cover, the rotor corresponds to the internal space of the pump On the other side of the pump cover, the stator and the rotor are opposed to 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 tube and the connection interface seamless with each other Combine fixed. The fluid cooling device according to claim 1, wherein the seamless joint fixing between the connecting pipe and the connecting interface is welded and fixed to each other, and the heat-absorbing upper cover and the pump housing are made of metal material. The fluid cooling device according to claim 5, wherein the heat-absorbing base is also made of metal material, and the heat-absorbing base is longitudinally attached to the heat-absorbing upper cover and welded and fixed to each other at the attachment; the heat-absorbing base has a heat exchange cavity corresponding to the surrounding A surrounding plate, the surrounding plate has a bonding top surface, a surface of the heat exchange cavity is recessed in a direction away from the heat absorption upper cover relative to the bonding top surface, and the heat absorption upper cover has a heat exchange cavity and the corresponding A bonding bottom surface covered by the bonding top surface, the bonding bottom surface is bonded to the bonding top surface and welded to each other; the heat-absorbing upper cover includes a cover body and a combination plate longitudinally combined with each other, and the interface is opened in the A combination board, which is attached to the cover body and welded to each other at the attachment place. The fluid cooling device according to claim 1, wherein the heat-absorbing upper cover is provided with an upper cover accommodating cavity, and the interface is connected to the upper cover accommodating cavity. The fluid cooling device according to claim 7, wherein the heat-absorbing upper cover includes a cover body and a combination plate longitudinally combined with each other, the cover body has a surrounding step corresponding to the surrounding of the upper cover cavity, the surrounding step toward the combination The direction of the board protrudes out of the upper cover cavity, the surrounding step has a bonding top surface, the combined board has a bonding bottom surface corresponding to the upper cover cavity and the bonding top surface, the bonding bottom surface is bonded to The top surface is attached and seamlessly fixed to each other. The fluid cooling device according to claim 1, wherein the heat-absorbing upper cover is laterally provided with a fluid suction port and longitudinally provided with a first upper cover opening and a second upper cover opening away from each other, the fluid suction port communicating with the first An upper cover opening, the first upper cover opening communicates with the first through the heat exchange cavity Two upper cover openings communicate with each other, and the second upper cover opening communicates with the interface; the heat-absorbing upper cover and the heat-absorbing base are respectively attached to two opposite surfaces of the heat exchange unit in the longitudinal direction, and the first upper cover opening is staggered relative to the heat exchange unit And it is conducive to the passage of fluid; the side of the heat-absorbing upper cover attached to the heat-absorbing base is longitudinally protruded with two convex walls facing each other, the two convex walls protrude into the heat exchange cavity and abut the heat-absorbing base, the heat The exchange unit is horizontally 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 close to each other The first convex wall, the elongated second cover opening is located outside the two convex walls and is adjacent to the second convex wall, the first convex wall abuts against the inner periphery of the heat exchange cavity, the first The length of the two convex walls and the length of the opening of the second upper cover both correspond to the width of the heat exchange unit. The fluid cooling device according to claim 1, wherein there are two ribs between the pump housing and the heat-absorbing upper cover that are adjacent to each other at a longitudinal distance, and the two ribs are arranged corresponding to the connecting pipe and supported on the Between one side of the pump housing and one 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 absorber, the heat absorber and the fluid pump are both rectangular bodies and have a convex portion and a concave portion, respectively, The recesses should be combined at intervals.

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