TWI726461B - Liquid heat-dissipation device - Google Patents

Abstract

A liquid heat-dissipation device having a tank reservoir, a cold plate and a pump is provided. The tank reservoir is provided with a reservoir chamber therein, and thereon provided with a bottom and a first side portion. A containing chamber connected to the reservoir chamber is defined in the first side portion. The cold plate is disposed at the bottom of the tank reservoir, and a cooling chamber is defined therein. The pump is disposed in the containing chamber. The tank reservoir is provided with an inlet connected between containing chamber and the cooling chamber and a coolant exchanging hole connected between the cooling chamber and the reservoir chamber. The coolant pumped into the containing chamber from the reservoir chamber is further sequentially pumped into the cooling chamber via the inlet hole, exchanged heat in the cooling chamber, and recovered to the reservoir chamber via the coolant exchanging hole.

Description

Liquid cooling device

The invention relates to a heat dissipation system, especially a liquid cooling heat dissipation device.

By the way, due to the rapid development of the electronics industry, many electronic heating elements nowadays must be cooled by a water-cooled heat dissipation system, so as to maintain their normal operation.

However, the current water-cooled heat dissipation system is mainly composed of a water-cooling head attached to the heat source, a water tank that provides the water-cooling liquid of the water-cooling head, and a pump that drives the water-cooling liquid to flow, and passes through each other. The connection of the pipeline allows the water-cooling liquid to circulate in the above-mentioned components, thereby taking away the heat absorbed by the water-cooling head. Furthermore, heat dissipation components such as water cooling radiators can be connected in series to help the temperature-rising water cooling liquid to accelerate the cooling, and then it can be quickly recycled and reused.

However, due to the connection of pipes, the water-cooled heat dissipation system will be scattered on the various components and not easy to install. Therefore, there are also designs that integrate various components, such as concealing the pump in the water tank, or putting the pump in the water tank. The water tank and the water cooling head are integrated into the same type, which can facilitate the reduction of components, so as to achieve the purpose of easy installation and configuration with fewer components. However, in this known integrated design, there is still no effective integration of water tanks, pumps, and water cooling heads. In particular, the internal channels for conveying water cooling liquid have not been designed more streamlined, so that the water cooling liquid still circulates in its internal flow. There are too many unnecessary ways, which not only fails to achieve further reduction, but also causes redundant and unnecessary designs in the configuration.

In view of this, in order to improve and solve the above-mentioned shortcomings, the inventor of the present invention made great efforts to research and cooperate with the application of scientific theory, and finally proposed an invention with reasonable design and effective improvement of the above-mentioned shortcomings.

The main purpose of the present invention is to provide a liquid-cooled heat dissipation device, which utilizes the relative arrangement relationship of the pump and the liquid-cooled head on the liquid-cooled box to effectively reduce the space occupied by the liquid-cooled box, thereby making it easier Install it directly on the heat source.

Another object of the present invention is to provide a liquid-cooled heat dissipation device, which effectively simplifies the flow path of the cooling liquid in the liquid-cooled box, so that the pump can directly pump the cooling liquid from the liquid-cooled box in a top-down manner It is injected into the liquid cold head to achieve a better cooling effect with the shortest path but can increase the impact force of the coolant.

In order to achieve the above-mentioned main objective, the present invention provides a liquid-cooled heat dissipation device, which includes a liquid storage tank, a liquid cooling head, and a pump; the liquid storage tank has a liquid storage space inside, and a liquid storage space outside the liquid storage tank. The bottom and a first side adjacent to the bottom, and the first side is provided with an accommodating space communicating with the liquid storage space; the liquid cooling head is arranged at the bottom of the liquid storage tank and includes a cover, and A cooling plate tightly fitted with the cover to form a cooling space in the cover; the pump is arranged in the accommodating space; wherein the liquid storage tank is provided with a liquid injection hole connecting the accommodating space and the cooling space , And a liquid exchange hole connecting the cooling space and the liquid storage space; the cooling liquid loaded in the liquid storage space is sucked into the containing space by the pump, and then injected into the cooling space through the liquid injection hole to make the cooling liquid After the heat exchange is performed in the cooling space, it flows back to the liquid storage space from the liquid exchange hole.

In order to achieve the above-mentioned other object, the present invention provides a liquid-cooled heat dissipation device, which is provided with a barrier wall between the liquid storage space and the accommodating space, and the barrier wall is provided with a communicating accommodating space and the liquid storage space The through hole is located above the liquid injection hole; the centrifugal pump drives the coolant with a vertical downward power, and at the same time, it further uses gravity to strengthen the impact force generated when the coolant is injected into the cooling space to increase cooling The time the liquid stays in the cooling space.

In order to enable your reviewer to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the accompanying drawings are only for reference and illustration, and are not used to limit the present invention. .

Please refer to FIG. 1 and FIG. 2, which are respectively a three-dimensional exploded view of the present invention and a three-dimensional exploded view from another perspective. The present invention provides a liquid-cooled heat dissipation device, which can be assembled on an electronic heating element and used to help the electronic heating element to dissipate heat. The liquid cooling device includes a liquid storage tank 1, a liquid cooling head 2, and a pump 3; among them:

The liquid storage tank 1 can be formed as a square body or a round body in appearance. It has a liquid storage space 10 for cooling liquid inside, and has a bottom 11 on the outside of the liquid storage tank 1 and the bottom 11 is adjacent to a first side portion 12, and the first side portion 12 is recessed with an accommodating space 120 in the liquid storage tank 1, and a through hole 121 is formed between the accommodating space 120 and the liquid storage space 10 Connected (as shown in FIG. 3); wherein, a barrier wall 121a can be provided between the liquid storage space and the accommodating space 120, and the through hole 121 is provided on the barrier wall 121a and penetrates. In the embodiment of the present invention, the liquid storage tank 1 further has a top 100 outside, and the liquid storage space 10 is formed by recessing the top 100 into the liquid storage tank 1, and can be A tank cover 101 is added to the top 100. The tank cover 101 can be made of a transparent material so that the human eye can see through the tank cover 101 from the outside of the liquid storage tank 1 to see the cooling liquid in the liquid storage space 10 Survival.

The liquid cold head 2 is arranged on the bottom 11 of the liquid storage tank 1, and includes a cover 20 and a cooling plate 21 tightly sealed from the bottom of the cover 20 to form a cooling plate in the cover 20 Space 200. In the embodiment of the present invention, the cover portion 20 can be formed by integrally protruding the bottom 11 of the liquid storage tank 1, and the cooling plate 21 can be provided with a plurality of spaced apart and located in the cooling space 200 The fins 210 restrict the flow direction of the cooling liquid to be consistent through the arrangement direction of the fins 210, and a partition 200a can be protruding downward from the bottom 11 of the liquid storage tank 1, and the partition 200a is cross-sectional and abuts against The fins 210 further restrict the cooling liquid flowing into the cooling space 200 from passing between the fins 210.

The pump 3 is used to provide the power for the flow of cooling liquid, and is arranged in the accommodating space 120 of the above-mentioned liquid storage tank 1, that is, the pump 3 faces the first side 12 of the liquid storage tank 1 The accommodating space 120 is assembled and can be further covered with a cover 122.

Please refer to FIGS. 3 and 4 together. Since the bottom 11 of the liquid storage tank 1 is adjacent to the first side surface 12, a space 120 connected to the accommodating space 120 may be provided in the liquid storage tank 1. The liquid injection hole 201 between the cooling space 200 and the cooling space 200 can pass through the operation of the pump 3, and the cooling liquid located in the liquid storage space 10 can be sucked into the accommodation space 120 through the through hole 121, and then passes through the liquid injection hole. 201 is driven into the cooling space 200 so that the cooling liquid can provide the liquid cooling head 2 to dissipate heat from the heating element. In the embodiment of the present invention, the pump 3 is a centrifugal pump, the axis of which faces the through hole 121 and sucks the coolant into the accommodating space 120, and is cooled by a centrifugal impeller The liquid is driven into the cooling space 200 toward the liquid injection hole 201; in other words, the through hole 121 is located above the liquid injection hole 201, and driven by the pump 3, the cooling liquid enters the liquid injection hole 201 from top to bottom. Impact into the cooling space 200, in addition to being driven by the vertical downward power of the pump 3, gravity can also be used to further strengthen the impact force generated when the coolant is injected into the cooling space 200, thereby increasing the cooling liquid staying in the cooling space 200. Time in cooling space 200. What's more, a water storage area 200b can be expanded in the cooling space 200, and the water storage area 200b is arranged in the opposite direction of the cooling liquid flow direction or opposite to the fins 210 for the cooling liquid to pass through. After the injection hole 201 impacts, it can flow to the fins 210 together after being stocked in the water storage area 200b.

Continuing from the above, the liquid storage tank 1 is further provided with a liquid exchange hole 202 communicating between the cooling space 200 and the liquid storage space 10; when the cooling liquid injected into the cooling space 200 is passed through the liquid cooling After the fins 210 of the head 2 take away the heat absorbed by the cooling plate 21, they can flow back into the liquid storage space 10 through the liquid exchange hole 202, and wait for the temperature to be lowered or to be discharged separately from the liquid storage tank 1. After the method is cooled, it is sucked by the pump 3 and injected into the cooling space 200 for recycling.

Therefore, the liquid-cooled heat sink of the present invention can be obtained by the above-mentioned structure composition.

In addition, as shown in FIG. 6, the present invention can further connect the above-mentioned water tank to a liquid cooling row 5, and the liquid storage tank 1 is provided with a return member 4 connected to its liquid storage space 10, and is connected by the return member 4 The liquid cooling row 5 is used for cooling or cooling the cooling liquid in the liquid storage tank 1. Please refer to FIG. 1, FIG. 3 and FIG. 6. In the embodiment of the present invention, the outside of the liquid storage tank 1 further has a second side portion 13 opposite to the above-mentioned first side portion 12 , The return member 4 is arranged on the second side portion 13, and the return member 4 may include a liquid outlet connector 40 and a liquid inlet connector 41, and a pair of corresponding liquid outlet connectors are provided on the second side portion 13 The liquid outlet hole 130 of the joint 41, and a pair of the liquid inlet hole 131 corresponding to the liquid inlet joint 41, and the second side portion 13 is further provided with a partition structure 14 in the liquid storage space 10 to facilitate the partition structure 14 has a liquid outlet area 140a and a liquid inlet area 141a which are separated from each other, and the liquid outlet area 140a corresponds to the liquid outlet hole 130 and the liquid exchange hole 202, and the liquid inlet area 141a corresponds to the liquid inlet hole 131 In more detail, the partition structure 14 includes a wall 140 surrounding the outlet and inlet holes 130, 131 and the liquid exchange hole 202, and a wall 140 that separates the outlet and inlet holes 130 131, the partition wall 141 is further divided into the liquid outlet area 140a and the liquid inlet area 141a. In addition, the partition structure 14 is provided with a return port 142 corresponding to the liquid inlet area 141a, and the return port 142 can be provided at the upper edge of the enclosure wall 140 and corresponds to the liquid inlet area 141a.

Please refer to FIGS. 3 and 4 again. When the cooling liquid flows back into the liquid storage space 10 through the liquid exchange hole 202, the cooling liquid can flow to the liquid outlet area 140a through the partition structure 14 and then The liquid outlet connector 40 can be connected to the input port 50 of the liquid cooling row 5 by a pipeline 52, as shown in FIG. 6. The liquid cooling row 5 can also be equipped with a fan 6 to help the cooling liquid cool down. After the cooling liquid is cooled, the output port 51 of the liquid cooling row 5 is connected to the liquid inlet 41 by another pipeline 52, as shown in Figure 3 As shown in FIG. 5, the cooled cooling liquid flows to the liquid inlet area 141a, and flows back into the liquid storage space 10 of the liquid storage tank 1 from the return port 142, for the operation of the above-mentioned pump 3 for recycling.

Furthermore, the second side portion 13 can also be provided with a fluid supplement hole 132, and a sealing plug 132a can be screwed into it.

In other embodiments, as shown in FIG. 7, the above-mentioned return member 4 can also be provided on the lid 101 of the liquid storage tank 1 and communicate with the liquid storage space 10, and the liquid outlet connector 40 of the return member 4 and the liquid inlet The joint 41 also corresponds to the liquid outlet area 140a and the liquid inlet area 141a of the partition structure 14 respectively.

In summary, this invention clearly achieves the intended purpose of use, and solves the deficiencies of conventional knowledge, and because of its novelty and advancement, it fully meets the requirements of an invention patent application. The application is filed in accordance with the Patent Law. Please check and verify in detail. Grant the patent in this case to protect the rights of the inventor.

However, the above descriptions are only the preferred and feasible embodiments of the present invention, and the scope of the patent of the present invention is not limited thereby. Therefore, all equivalent technologies, means and other changes made by using the description and drawings of the present invention are the same. It is included in the scope of the present invention, and is fully disclosed.

<The present invention>

Reservoir 1

Liquid storage space 10

Top 100

Cover 101

Bottom 11

Side 12

Housing space 120

Through hole 121

Barrier wall 121a

Cover 122

Second side 13

Outlet hole 130

Inlet hole 131

Rehydration port 132

Sealing plug 132a

Compartment structure 14

Fence 140

Outlet area 140a

Partition wall 141

Inlet area 141a

Return port 142

Liquid cooling head 2

Cover 20

Cooling space 200

Separate edge 200a

Water storage area 200b

Filling hole 201

Liquid change hole 202

Cooling plate 21

Fin 210

Pump 3

Return component 4

Outlet connector 40

Inlet connector 41

Liquid cooling row 5

Input port 50

Output port 51

Line 52

Fan 6

Figure 1 is a perspective exploded view of the present invention.

Figure 2 is a perspective exploded view of the present invention from another perspective.

Figure 3 is a schematic cross-sectional view of the internal structure of the present invention.

Fig. 4 is a cross-sectional view according to Fig. 3, section 4-4.

Fig. 5 is a cross-sectional view according to the section 5-5- of Fig. 3.

Fig. 6 is a schematic diagram of the external liquid cooling row of the present invention.

Fig. 7 is an exploded perspective view of another embodiment of the present invention.

Reservoir 1 Liquid storage space 10 Top 100 Box cover 101 Through hole 121 Cover 122 Second side 13 Outlet hole 130 Inlet hole 131 Rehydration port 132 Sealing plug 132a Compartment structure 14 Return port 142 Liquid cooling head 2 Cooling plate 21 Fin 210 Pump 3 Return component 4 Outlet connector 40 Inlet connector 41

Claims (10)

A liquid-cooled heat dissipation device includes: a liquid storage tank with a liquid storage space inside, a bottom part outside the bottom part, and a first side part adjacent to the bottom part, and inside the first side part There is an accommodating space communicating with the liquid storage space; a liquid cooling head is arranged at the bottom of the liquid storage tank, and includes a cover part and a cooling plate tightly sealed with the cover part to fit inside the cover part A cooling space is formed; and a pump is arranged in the accommodating space; wherein, the liquid storage tank is provided with a liquid injection hole communicating the accommodating space and the cooling space, and a fluid communicating the cooling space and The liquid exchange hole of the liquid storage space, and a water storage area is expanded in the cooling space; the cooling liquid loaded in the liquid storage space is sucked into the containing space by the pump, and then the liquid is injected Holes are drilled into the cooling space, so that the cooling liquid flows back to the liquid storage space from the liquid exchange hole after heat exchange in the cooling space, and the water storage area and the cooling liquid flow direction are arranged in opposite directions . For the liquid-cooled heat dissipating device described in item 1 of the scope of patent application, wherein the liquid storage tank has a top outside, and the liquid storage space is formed by recessing the top to the liquid storage tank, and is formed in the liquid storage tank. There is a box cover on the top. For the liquid-cooled heat dissipation device described in item 2 of the scope of patent application, the box cover is made of transparent material. For the liquid-cooled heat dissipating device described in item 1 of the scope of patent application, a barrier wall is provided between the liquid storage space and the accommodating space, and a barrier wall is provided on the barrier wall to communicate with the accommodating space and the storage space. The through hole of the liquid space is located above the liquid injection hole. For the liquid-cooled heat dissipation device described in item 1 of the scope of patent application, wherein the cooling plate is provided with a plurality of fins arranged at intervals and located in the cooling space, and a partition protruding downward from the bottom of the liquid storage tank, And the partition is cross-sectionally abutting on the fins. In the liquid-cooled heat sink described in item 1 of the scope of patent application, the pump is a centrifugal pump. In the liquid-cooled heat dissipation device described in item 1 of the scope of patent application, a return member is further provided on the liquid storage tank to communicate with the liquid storage space. For the liquid-cooled heat dissipating device described in item 7 of the scope of patent application, the liquid storage tank has a top outside, and the liquid storage space is formed by recessing from the top to the liquid storage tank, and is formed in the liquid storage tank. A box cover is arranged on the top, and the return member is arranged on the box. The liquid-cooled heat sink described in item 7 of the scope of patent application, wherein the outside of the liquid storage tank further has a second side portion opposite to the first side portion, and the return member is provided on the second side portion , And the return component includes a liquid outlet connector and a liquid inlet connector, and a pair of outlet holes corresponding to the outlet connector and a pair of liquid inlet holes corresponding to the inlet connector are provided on the second side portion. The two sides are further provided with a compartment structure in the liquid storage space, so that a liquid outlet area and a liquid inlet area are separated from each other in the compartment structure, and the liquid outlet area corresponds to the liquid outlet hole and the exchange hole. The liquid inlet area corresponds to the liquid inlet hole, and the compartment structure is provided with a return port corresponding to the liquid inlet area. For example, the liquid-cooled heat dissipation device described in item 9 of the scope of patent application, wherein the partition structure includes a wall surrounding the outlet, the liquid inlet and the liquid exchange hole, and a wall arranged in the wall to partition the outlet , The separation wall of the liquid inlet hole, the return port is arranged on the edge of the enclosure wall and corresponds to the liquid inlet area.

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