TWM626987U - Liquid cooling device for notebook computers - Google Patents

Abstract

The present invention relates to a liquid cooling device applied to a notebook computer, including: a liquid cooling and power supply device, which includes a liquid cooling module and a power supply module, and the inside of the liquid cooling module passes through a second liquid pipeline A cooling device, a water tank, a first pump and a water channel switch are connected in series, and a cooling liquid is stored inside the water tank and its top side forms an air chamber for a gas storage, between the water tank and the water channel switch A gas pipeline is arranged in communication with the gas chamber, and a second pump is arranged in the gas pipeline; the power supply module drives the first pump to act so that the cooling liquid of the water tank is in the second liquid The inside of the pipeline flows, and the heat energy of the heating element is conducted to the first liquid pipeline through the heat conducting member for heat exchange.

Description

Liquid cooling device for notebook computers

This creation provides a liquid cooling device applied to a notebook computer, especially a liquid cooling and power supply device, which can form a water circuit and an electrical connection with the notebook computer at the same time, and control the first pump through the return water control switching module , the second pump, and the water channel switch in various operating states, the notebook computer can be in a cooling mode; and the liquid cooling and power supply device and the notebook computer need to be separated due to various factors. water pattern. At the same time, the combined volume and weight of the notebook computer, the power supply module and the water cooling device can be greatly reduced, and since the liquid cooling and power supply device uses an external connection to the notebook computer, sufficient space is provided for the liquid cooling and power supply device 1 operation in order to achieve the purpose of increasing the cooling efficiency.

Nowadays, due to the portable convenience of notebook computers, more and more users choose to replace traditional desktop computers with notebook computers for home or office use. It is necessary to move towards the trend of light, thin, short and small, so there is not much space for the electronic components or functional modules inside the notebook computer. Although all notebook computers are equipped with fans or heat-pipe liquid/gas exchange equipment to assist heat dissipation, the achievable heat dissipation efficiency is obvious if the fan or heat pipe liquid/gas exchange equipment is installed in a limited space. However, if sufficient heat dissipation efficiency is provided, the structure will occupy a large space inside the notebook computer, and the overall weight and structure will also increase accordingly. in limited space In the process of moving the notebook computer, after the heat dissipation structure is displaced and displaced, it may further impact other electronic components, which will cause the notebook computer to be damaged to varying degrees.

Furthermore, with the recent booming of the game industry and the audio-visual industry, notebook computers are limited by the size and weight issues, resulting in the problems of heat dissipation and performance-related power supply wattage (overclocking). It is not an easy task to set up a water cooling system with better performance in the limited space inside. However, there are still manufacturers who have designed designs like the design of the ROC Patent No. M273037. The technical means is an external structure that carries the water cooling device and is fixed on the A side of the notebook computer to enhance the heat dissipation efficiency of the notebook computer. This method can only be used in a fixed location, and is not conducive to the user's use. In addition, the combined volume and weight of the notebook computer, the power supply module and the water-cooling device are very considerable and unfavorable to carry, and the water-cooling device is also easily damaged by impact during the carrying process.

Therefore, how to improve the above-mentioned deficiencies, while simultaneously reducing the weight and volume and increasing the heat dissipation performance, has become the focus of those engaged in this industry who are eager to improve.

Therefore, in view of the above problems and deficiencies, the creator collected relevant information, and after multiple evaluations and considerations, came up with the creation of such a liquid cooling device for notebook computers.

The main purpose of this creation is to provide a liquid cooling device applied to a notebook computer, including: a liquid cooling and power supply device, which includes a liquid cooling module and a power supply module, and the liquid cooling module passes through a second The liquid pipeline is connected in series with a cooling device, a water tank, a first pump and a water channel switch, and the water tank stores a cooling liquid and its top side forms an air chamber for a gas storage, and the water tank is switched with the water channel There is a gas pipe communicating with the gas chamber between the devices The gas pipeline is provided with a second pump; the power supply module drives the first pump to make the cooling liquid of the water tank flow inside the second liquid pipeline, and make the heating element heat energy Conduct heat exchange into the first liquid pipeline through the heat-conducting member. When the liquid cooling and power supply device is to be disassembled from the notebook computer, the first pump is controlled by switching the return water control switching module. Stop the operation and the second pump operation, and drive the gas in the water tank to enter the second liquid pipeline through the gas pipeline and the water channel switch, so that the gas remaining in the first and second liquid pipelines When the cooling liquid is pushed back into the water tank by the gas, the liquid cooling and power supply device can be separated from the notebook computer. Through the above-mentioned design, the liquid cooling and power supply device and the notebook computer can form a water circuit and an electrical connection at the same time. In the active state, the notebook computer can be in a cooling mode; and a water return mode when the liquid cooling and power supply device and the notebook computer need to be separated due to various factors. At the same time, the combined volume and weight of the notebook computer, the power supply module and the water cooling device can be greatly reduced, and since the liquid cooling and power supply device uses an external connection to the notebook computer, sufficient space is provided for the operation of the liquid cooling and power supply device. , in order to achieve the purpose of increasing the cooling efficiency.

Another purpose of the present invention is that the heat dissipation device refers to a water-cooling row composed of tortuous pipelines and a plurality of fins, and a fan is further provided on one side of the water-cooling row for air-cooling heat dissipation.

Another object of the present invention is that the liquid cooling module includes a first water inlet end and a first water outlet end, and the first water inlet end and the first water outlet end respectively pass through the connecting pipe and the notebook outside of the first water inlet end and the first water outlet end. The computer is provided with a second water outlet to form a connection with a second water inlet. The second water outlet and the second water inlet of the notebook computer are connected to the notebook computer through the first liquid pipeline. at the heating element.

Another object of the present invention is that the power supply module further includes an AC cable and a power plug that are plugged into the mains, and the AC cable is connected with a transformer circuit that converts the AC of the mains into DC. A DC cable and a DC connector that can be electrically connected to the notebook computer are extended on the other side of the circuit, and the transformer circuit is electrically connected to the return water control switching module.

Another object of the present invention is that the heat-conducting member refers to a water-cooling seat contacting the top surface and the peripheral edge of the heating element, and the water-cooling seat is used for connecting the first liquid pipeline and performing water-cooling heat exchange.

Another object of the present invention is that the water channel switch is composed of a two-position three-way solenoid valve that can be controlled by manual or electric signals.

1: Liquid cooling and power supply device

11: Liquid cooling module

111: The first water inlet

112: The first water outlet

113: connecting pipe

114: Second liquid line

115: cooling device

116: water tank

1160: Air Chamber

1161: Coolant

117: First pump

118: Waterway switcher

119: Gas line

120: Second pump

13: Power supply module

131: AC cable

132: Power plug

133: DC cable

134: DC connector

14: Backwater control switching module

2: Notebook

21: The second water inlet

22: The second water outlet

23: The first liquid line

24: Thermal components

25: Heating element

[Picture 1] is a perspective view of the water circuit and electrical connection between the liquid cooling and power supply device of this creation and the notebook computer.

[Picture 2] is another perspective view of the water circuit and electrical connection between the liquid cooling and power supply device and the notebook computer.

[Fig. 3] is a schematic diagram of heat dissipation of the first embodiment of the liquid cooling and power supply device of this creation.

[Fig. 4] is a schematic diagram of water return in the first embodiment of the liquid cooling and power supply device of this creation.

[Fig. 5] is a schematic diagram of heat dissipation of the second embodiment of the liquid cooling and power supply device of this creation.

[Fig. 6] is a schematic diagram of the water return of the second embodiment of the liquid cooling and power supply device of this creation.

In order to achieve the above purpose and effect, the technical means and structure used in this creation I hereby describe the preferred embodiment of this creation in detail, and its features and functions are as follows, so that I can fully understand it.

Please refer to Figures 1 to 4, each of which is a three-dimensional view of the creation of a water circuit and electrical connection between the liquid cooling and power supply device and the notebook computer, another three-dimensional view, a schematic diagram of heat dissipation of the first embodiment of the liquid cooling and power supply device, and The first embodiment of the liquid cooling and power supply device is a schematic diagram of water return. It can be clearly seen from the figure that this creation mainly includes: a liquid cooling and power supply device 1 and a notebook computer 2, and the connection relationship and detailed structure of each component as follows:

The liquid cooling and power supply device 1 includes a liquid cooling module 11 and a power supply module 13. The outside of the liquid cooling module 11 is connected to the first liquid pipeline 23 inside the notebook computer 2 through at least one connecting pipe 113. The first liquid pipeline 23 is connected to at least one heating element 25, and the liquid cooling module 11 is connected in series through the second liquid pipeline 114 with a heat sink 115 (Radiator), a water tank 116 (Tank), A first pump 117 (Pump) and a water channel switch 118, and the water tank 116 stores a cooling liquid 1161 inside and its top side forms a gas chamber 1160 for a gas storage, the water tank 116 and the water channel switch 118 are connected There is a gas pipeline 119 communicating with the gas chamber 1160, and a second pump 120 (Pump) is arranged in the gas pipeline 119. The aforementioned cooling liquid 1161 is composed of pure water or composite water cooling liquid. , and the casing of the water tank 116 is equipped with a preset pressure relief valve (not shown in the figure) that communicates with the air chamber 1160 for the gas to be discharged. Since the pressure relief valve is a conventional device, its structure and operation principle have been There are many disclosures, so I will not repeat them here.

The power supply module 13 is electrically connected to a backwater control switching module 14, and the backwater control switching module 14 is electrically connected to the first pump 117, the second pump 120 and the water channel switcher 118 , actuate the first pump 117 to make the cooling liquid 1161 of the water tank 116 flow inside the second liquid pipeline 114 , and make the heat energy of the heating element 25 conduct through a heat conducting member 24 Heat exchange is performed in the first liquid pipeline 23. When the liquid cooling and power supply device 1 and the notebook computer 2 are to be disassembled, the first pump 117 is controlled by switching the return water control switching module 14. Stop the operation and the second pump 120 is activated, and drive the gas in the water tank 116 to enter the second liquid pipeline 114 through the gas pipeline 119 and the water channel switch 118, so that the gas remains in the first and second liquid pipelines. The cooling liquid 1161 of the liquid pipeline ( 23 , 114 ) is pushed back into the water tank 116 by the gas, so that the liquid cooling and power supply device 1 can be separated from the notebook computer 2 .

The above-mentioned liquid cooling module 11 includes a first water inlet end 111 and a first water outlet end 112 . The first water inlet end 111 and the first water outlet end 112 respectively pass through the connecting pipe 113 and the notebook outside of the first water inlet end 111 and the first water outlet end 112 . The computer 2 is provided with a second water outlet 22 to form a connection with a second water inlet 21. The second water outlet 22 and the second water inlet 21 of the notebook computer 2 pass through the first liquid pipeline 23 and the second water inlet 21. The heat-conducting element 24 is connected to the heating element 25 of the notebook computer 2 , and the heat-conducting element 24 refers to a water-cooling seat in contact with the top surface and the periphery of the heating element 25 , and the water-cooling seat is used for the first liquid pipeline. 23 Make a connection and perform water cooling and heat exchange.

The above-mentioned heat dissipation device 115 refers to a water-cooled row formed by tortuous pipelines and a plurality of fins, and a fan is further provided on one side of the water-cooled row for air-cooled heat dissipation. Furthermore, the heating element 25 refers to a central processing unit, a north bridge chip, a graphics chip or a SoC. In addition, the water channel switch 118 is composed of a two-position three-way solenoid valve (Solenoid Valve) that can be controlled by manual or electric signals.

The above-mentioned power supply module 13 further includes an AC cable 131 and a power plug 132 that are plugged into the mains, and the AC cable 131 is connected with a transformer circuit (not shown in the figure) that converts the AC of the mains into DC. , The transformer circuit for converting alternating current to direct current is a mature and conventional technique, so it will not be repeated here. The other side of the transformer circuit extends to be electrically connected to the A DC cable 133 and a DC connector 134 of the notebook computer 2 are provided, and the transformer circuit is electrically connected to the return water control switching module 14 .

Please refer to FIG. 3 , when the invention is in the cooling mode, the water return control switching module 14 controls the first pump 117 to operate and the second pump 120 does not operate, and controls the first pump 117 above the water channel switch 118 The pump 117 and the left second liquid pipeline 114 are in a connected state, and at this time, the right second pump 120 of the water channel switch 118 and the left second liquid pipeline 114 are in a disconnected state. The heat dissipation conduction path is that the first pump 117 extracts the low-temperature cooling liquid 1161 from the water tank 116, and sends it into the second liquid pipeline 114 through the water channel switch 118, all the way through the first water outlet 112, the connecting pipe 113, the second inlet In the water end 21 , the first liquid pipeline 23 and the heat-conducting member 24 , the heat energy of the heating element 25 (eg, central processing unit) is conducted to the heat-conducting member 24 for heat exchange. The high-temperature cooling liquid 1161 is sent back through another first liquid pipeline 23, and all the way through the second water outlet 22, the connecting pipe 113, the first water inlet 111, and the second liquid pipeline 114 into the cooling device 115 for air cooling. After heat dissipation, the cooled cooling liquid 1161 is sent back to the water tank 116 to complete the circulation of the heat dissipation mode as described above.

Referring to FIG. 4 , when the liquid cooling and power supply device 1 and the notebook computer 2 need to be separated due to various factors (eg, portability or maintenance), the water return mode is required. In the present invention, when the backwater mode is performed, the backwater control switching module 14 controls the first pump 117 to stop operating and the second pump 120 to operate, and controls the second pump 120 on the right and the left on the water channel switch 118 The second liquid pipelines 114 are in a communication state, and at this time, the first pump 117 above the water channel switch 118 and the left second liquid pipeline 114 are in a non-communication state. The return water conduction path is that the second pump 120 extracts the gas from the gas chamber 1160 of the water tank 116, and sends it into the second liquid pipeline 114 through the gas pipeline 119 and the water channel switch 118, and the gas pushes the path through the first liquid pipeline 114. A water outlet end 112 , a connecting pipe 113 , a second water inlet end 21 , a first liquid pipeline 23 , a heat conducting member 24 , and another first liquid pipeline 23 , the second water outlet 22, the connecting pipe 113, the first water inlet 111, the second liquid pipeline 114 and the heat sink 115, and the cooling liquid 1161 remaining in the pipeline is returned to the water tank 116. Cycle of water patterns.

Please refer to Figures 5 and 6, each of which is a schematic diagram of cooling the second embodiment of the liquid cooling and power supply device and a schematic diagram of returning water to the second embodiment of the liquid cooling and power supply device, which mainly include: a liquid cooling A power supply device 1 and a notebook computer 2, and the connection relationship and detailed structure of each component are as follows:

The liquid cooling and power supply device 1 includes a liquid cooling module 11 and a power supply module 13. The outside of the liquid cooling module 11 is connected to the first liquid pipeline 23 inside the notebook computer 2 through at least one connecting pipe 113. The first liquid pipeline 23 is connected to at least one heating element 25, and the liquid cooling module 11 is connected in series with a heat sink 115, a second pump 120, and a water tank 116 through the second liquid pipeline 114. , a first pump 117 and a water channel switch 118, and the water tank 116 stores a cooling liquid 1161 inside and its top side forms a gas chamber 1160 for a gas storage, the cooling liquid 1161 is composed of pure water or composite components It is composed of water cooling liquid, and the shell of the water tank 116 is equipped with a preset pressure relief valve (not shown in the figure) that communicates with the air chamber 1160 to allow the gas to be discharged. Since the pressure relief valve is a conventional device, its structure The principle of action has been revealed in many ways, so it will not be repeated here.

The power supply module 13 is electrically connected to a backwater control switching module 14, and the backwater control switching module 14 is electrically connected to the first pump 117, the second pump 120 and the water channel switcher 118. Activate the first pump 117 to make the cooling liquid 1161 of the water tank 116 flow inside the second liquid pipe 114, and make the heat energy of the heating element 25 conduct to the first liquid pipe through the heat conducting member 24 Heat exchange is performed in the circuit 23. When the liquid cooling and power supply device 1 and the notebook computer 2 are to be disassembled, the first pump 117 is controlled by switching the return water control switching module 14. Stop the operation and the second pump 120 is activated, and synchronously switch the unconnected liquid pipeline of the water channel switch 118 to inhale the outside air into the second liquid pipeline 114, so that the residual gas in the first and second liquid pipelines The cooling liquid 1161 of the channels (23, 114) is pushed back into the water tank 116 by the gas, so that the liquid cooling and power supply device 1 and the notebook computer 2 can be separated.

The above-mentioned liquid cooling module 11 includes a first water inlet end 111 and a first water outlet end 112 . The first water inlet end 111 and the first water outlet end 112 respectively pass through the connecting pipe 113 and the notebook outside of the first water inlet end 111 and the first water outlet end 112 . The computer 2 is provided with a second water outlet 22 to form a connection with a second water inlet 21. The second water outlet 22 and the second water inlet 21 of the notebook computer 2 pass through the first liquid pipeline 23 and the second water inlet 21. The heat-conducting element 24 is connected to the heating element 25 of the notebook computer 2 , and the heat-conducting element 24 refers to a water-cooling seat in contact with the top surface and the periphery of the heating element 25 , and the water-cooling seat is used for the first liquid pipeline. 23 Make a connection and perform water cooling and heat exchange.

The above-mentioned heat dissipation device 115 refers to a water-cooled row formed by tortuous pipelines and a plurality of fins, and a fan is further provided on one side of the water-cooled row for air-cooled heat dissipation. Furthermore, the heating element 25 refers to a central processing unit, a north bridge chip, a graphics chip or a SoC. In addition, the water channel switch 118 is composed of a two-position three-way solenoid valve that can be controlled by manual or electric signals.

The above-mentioned power supply module 13 further includes an AC cable 131 and a power plug 132 that are plugged into the mains, and the AC cable 131 is connected with a transformer circuit (not shown in the figure) that converts the AC of the mains into DC. , The transformer circuit for converting alternating current to direct current is a mature and conventional technique, so it will not be repeated here. The other side of the transformer circuit is extended with a DC cable 133 that can be electrically connected to the notebook computer 2 and a DC connector 134 , and the transformer circuit is electrically connected to the return water control switching module 14 .

Please refer to FIG. 5 , when the invention is in the cooling mode, the water return control switching module 14 controls the first pump 117 to operate and the second pump 120 does not operate. At this time, the water channel switch 118 is connected to the first pump 117 The pumps 117 are in a connected state, but the second pump 120 is still available for the cooling liquid 1161 to pass through, and the heat dissipation conduction path is that the first pump 117 extracts the low-temperature cooling liquid 1161 from the water tank 116 and sends it through the water channel switch 118. In the second liquid pipeline 114, all the way through the first water outlet 112, the connecting pipe 113, the second water inlet 21, the first liquid pipeline 23 and the heat conducting member 24, so that the heating element 25 (for example, the central processing unit) ) heat energy is conducted to the heat-conducting member 24 for heat exchange. The high-temperature cooling liquid 1161 is sent back through another first liquid pipeline 23, and all the way through the second water outlet 22, the connecting pipe 113, the first water inlet 111, and the second liquid pipeline 114 into the cooling device 115 for air cooling. After heat dissipation, the cooled cooling liquid 1161 is sent back to the water tank 116 through the second pump 120, and the circulation of the heat dissipation mode is completed by the above-mentioned.

Referring to FIG. 6 , when the liquid cooling and power supply device 1 and the notebook computer 2 need to be separated due to various factors (eg, portability or maintenance), the water return mode is required. In the present invention, when the backwater mode is performed, the backwater control switching module 14 controls the first pump 117 to stop operating and the second pump 120 to operate, and the water channel switch 118 switches between the unconnected liquid pipeline and the second liquid The pipeline 114 is connected. At this time, the water channel switch 118 and the first pump 117 are in a non-communication state where the cooling liquid 1161 cannot pass through. The return water conduction path is actuated by the second pump 120 , so that the water channel switch 118 can suck the external gas into the second liquid pipeline 114 where the water channel switch 118 is not connected to the liquid pipeline, and the gas pushes the path through the first water outlet 112 . , connecting pipe 113, second water inlet end 21, first liquid pipeline 23, heat conducting member 24, another first liquid pipeline 23, second water outlet end 22, connecting pipe 113, first water inlet end 111, The two liquid pipelines 114 and the heat dissipation device 115 pass through the second pump 120 to return the remaining cooling liquid 1161 to the water tank 116 , and complete the circulation of the return mode by the above-mentioned .

The main feature of this creation is to design a liquid cooling and power supply device 1, which can form a water circuit and an electrical connection with the notebook computer 2 at the same time, and control the first pump 117 and the second pump 120 through the return water control switching module 14 , the various operating states of the water channel switch 118, the notebook computer 2 can be in a cooling mode; and, the liquid cooling and power supply device 1 and the notebook computer 2 need to be separated due to various factors. model. At the same time, the combined volume and weight of the notebook computer 2, the power supply module and the water cooling device can be greatly reduced, and since the liquid cooling and power supply device 1 uses an external connection to the notebook computer 2, sufficient space is provided for the liquid cooling and power supply device 1. The power supply device 1 operates to achieve the purpose of increasing the heat dissipation efficiency. This creation has excellent practicability in the field of computer heat dissipation, so a patent application is filed to seek patent protection.

The above is only a preferred embodiment of this creation, and therefore it limits the scope of the patent of this creation. Therefore, any simple modifications and equivalent structural changes made by using the contents of the description and drawings of this creation should be similarly included in this creation. Within the scope of the patent, I agree to Chen Ming.

To sum up, the above-mentioned liquid cooling device applied to notebook computers in this creation can indeed achieve its efficacy and purpose. Therefore, this creation is a creation with excellent practicability. In order to meet the application requirements for a new type patent, Yuan should file an application in accordance with the law, and hope that the review committee will approve this case as soon as possible to protect the hard work of the creators.

1: Liquid cooling and power supply device

11: Liquid cooling module

111: The first water inlet

112: The first water outlet

113: connecting pipe

114: Second liquid line

115: cooling device

116: water tank

1160: Air Chamber

1161: Coolant

117: First pump

118: Waterway switcher

119: Gas line

120: Second pump

13: Power supply module

131: AC cable

132: Power plug

133: DC cable

14: Backwater control switching module

2: Notebook

21: The second water inlet

22: The second water outlet

Claims (14)

A liquid cooling device applied to a notebook computer, comprising: A liquid cooling and power supply device, which includes a liquid cooling module and a power supply module, the outside of the liquid cooling module is connected to a first liquid pipeline inside the notebook computer through at least one connecting pipe, and passes through the first liquid pipeline. The liquid pipeline is connected to at least one heating element, and the inside of the liquid cooling module is connected in series with a heat dissipation device, a water tank, a first pump and a water channel switch through the second liquid pipeline, and the water tank stores a The cooling liquid and its top side form an air chamber for a gas storage, a gas pipeline communicated with the air chamber is arranged between the water tank and the water channel switch, and a second pump is arranged in the gas pipeline; as well as The power supply module is electrically connected to a backwater control switch module, and the backwater control switch module is electrically connected to the first pump, the second pump and the water channel switch through the first pump, the second pump and the water channel switch. The pump is actuated to make the cooling liquid of the water tank flow inside the second liquid pipeline, and the heat energy of the heating element is conducted to the first liquid pipeline through a heat-conducting member for heat exchange. When the power supply device is disassembled from the notebook computer, by switching the return water control switching module, the first pump is controlled to stop and the second pump is activated, and the gas in the water tank is driven through the gas pipeline, The water channel switch enters the second liquid pipeline, so that the cooling liquid remaining in the first and second liquid pipelines is pushed back into the water tank by gas, so that the liquid cooling and power supply device can be connected to the notebook separate computer. The liquid cooling device applied to a notebook computer as described in claim 1, wherein the heat dissipation device refers to a water-cooling row formed by tortuous pipes and a plurality of fins, and a fan is provided on one side of the water-cooling row for cooling Air cooling. The liquid cooling device applied to a notebook computer as claimed in claim 1, wherein the liquid cooling module comprises a first water inlet end and a first water outlet end, the first water inlet end and the first water outlet end respectively A second water outlet end and a second water inlet end of the notebook computer are connected through the connecting pipe outside the notebook computer, and the second water outlet end and the second water inlet end of the notebook computer pass through the first water outlet end. The liquid pipeline and the heat conducting member are connected to the heating element of the notebook computer. The liquid cooling device applied to a notebook computer as described in claim 3, wherein the thermally conductive member refers to a water-cooling seat contacting the top surface and the periphery of the heating element, and the water-cooling seat is used for the first liquid pipeline as a Connect and perform water cooling and heat exchange. The liquid cooling device applied to a notebook computer according to claim 1, wherein the power supply module further comprises an AC cable and a power plug that are plugged into the mains, and the AC cable is connected to the AC conversion of the mains. A transformer circuit for direct current, the other side of the transformer circuit is extended with a DC cable and a DC connector that can be electrically connected to the notebook computer, and the transformer circuit is electrically connected to the return water control switch module. The liquid cooling device applied to a notebook computer as claimed in claim 1, wherein the heating element refers to a central processing unit, a north bridge chip, a graphics chip or a system-on-chip. The liquid cooling device applied to a notebook computer according to claim 1, wherein the water channel switch is composed of a two-position three-way solenoid valve that can be controlled by manual or electric signals. A liquid cooling device applied to a notebook computer, comprising: A liquid cooling and power supply device, which includes a liquid cooling module and a power supply module, the outside of the liquid cooling module is connected to a first liquid pipeline inside the notebook computer through at least one connecting pipe , and is connected to at least one heating element through the first liquid pipeline, and a heat sink, a second pump, a water tank, and a first pump are connected in series through the second liquid pipeline inside the liquid cooling module. and a water channel switch, and a cooling liquid is stored inside the water tank and its top side forms a gas chamber for a gas storage; and The power supply module is electrically connected to a backwater control switching module, and the backwater control switching module is electrically connected to the first pump, the second pump and the water channel switch through the first pump, the second pump and the water channel switch. The pump is actuated to make the cooling liquid of the water tank flow inside the second liquid pipeline, and the heat energy of the heating element is conducted to the first liquid pipeline through a heat-conducting member for heat exchange. When the power supply device and the notebook computer are disassembled, by switching the return water control switching module to control the stop operation of the first pump and the operation of the second pump, and synchronously switch the unconnected liquid pipeline of the water channel switch The space sucks the outside air into the second liquid pipeline, so that the cooling liquid remaining in the first and second liquid pipelines is pushed back into the water tank by the gas, and the liquid cooling and power supply device can be connected with the notebook separate computer. The liquid cooling device applied to a notebook computer as described in claim 8, wherein the heat dissipation device refers to a water-cooling row formed by tortuous pipes and a plurality of fins, and a fan is provided on one side of the water-cooling row for cooling Air cooling. The liquid cooling device applied to a notebook computer according to claim 8, wherein the liquid cooling module comprises a first water inlet end and a first water outlet end, the first water inlet end and the first water outlet end respectively A second water outlet end and a second water inlet end of the notebook computer are connected through the connecting pipe outside the notebook computer, and the second water outlet end and the second water inlet end of the notebook computer pass through the first water outlet end. The liquid pipeline and the heat conducting member are connected to the heating element of the notebook computer place. The liquid cooling device applied to a notebook computer as claimed in claim 10, wherein the thermally conductive member refers to a water-cooling seat contacting the top surface and the periphery of the heating element, and the water-cooling seat is used for the first liquid pipeline as a Connect and perform water cooling and heat exchange. The liquid cooling device applied to a notebook computer according to claim 8, wherein the power supply module further comprises an AC cable and a power plug that are plugged into the mains, and the AC cable is connected to the AC conversion of the mains. A transformer circuit for direct current, the other side of the transformer circuit is extended with a DC cable and a DC connector that can be electrically connected to the notebook computer, and the transformer circuit is electrically connected to the return water control switch module. The liquid cooling device applied to a notebook computer according to claim 8, wherein the heating element refers to a central processing unit, a north bridge chip, a graphics chip or a system-on-chip. The liquid cooling device applied to a notebook computer as claimed in claim 8, wherein the water channel switch is constituted by a two-position three-way solenoid valve that can be controlled by manual or electric signals.

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