Built-in liquid cooling heat spreader

Abstract

The utility model discloses a built-in liquid cooling radiator, include: having at least one air outlet's fan and at least one corresponding setting in the fan air outlet outside's radiating fin group, still include circulating pump and built-in liquid cooling flow channel's liquid cooling board, one side surface of liquid cooling board is used for with heat source surface contact, one end of liquid cooling flow channel is connected with one end of circulating pump through a heat conduction copper pipe, the other end of liquid cooling flow channel is connected with the other end of circulating pump through a radiating copper pipe, make cooling liquid circulate and flow under the action of circulating pump between heat conduction copper pipe, radiating copper pipe and liquid cooling flow channel, the radiating fin group and radiating copper pipe away from the section welding connection of circulating pump. The utility model discloses improve the efficiency of radiating while not increasing the size thickness, has met the higher demand of notebook computer hardware performance promotion to radiator.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation in electronic products, and in particular to a built-in liquid cooling heat sink. Background Technology

[0002] Liquid cooling is a current trend in heat dissipation for AI / artificial intelligence / high-power chips, and the technology is becoming increasingly mature. It has been widely used in data center server rooms for communication equipment such as servers and switches. The mainstream liquid cooling method uses cold plate heat dissipation, while a few use immersion liquid cooling. With the development of notebook laptops in recent years, two types of functional laptops have emerged: business laptops and gaming laptops. Business laptops emphasize lighter and thinner designs, while gaming laptops focus on performance enhancement and gaming experience. However, with the improvement of laptop hardware performance, heat dissipation has become an increasingly serious problem. How to achieve effective heat dissipation for laptops within a limited space has become a problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a built-in liquid cooling radiator that improves heat dissipation efficiency without increasing size or thickness, thus meeting the higher requirements for radiators due to the improved hardware performance of laptops.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a built-in liquid-cooled heat sink, comprising: a fan having at least one air outlet and at least one heat dissipation fin assembly correspondingly disposed outside the fan air outlet, further comprising a circulation pump and a liquid-cooled plate with a built-in liquid-cooled flow channel, one side surface of the liquid-cooled plate being used to contact the heat source surface, one end of the liquid-cooled flow channel being connected to one end of the circulation pump through a heat-conducting copper pipe, and the other end of the liquid-cooled flow channel being connected to the other end of the circulation pump through a heat-dissipating copper pipe, so that the coolant circulates between the heat-conducting copper pipe, the heat-dissipating copper pipe and the liquid-cooled flow channel under the action of the circulation pump, and the heat dissipation fin assembly being welded to the section of the heat-dissipating copper pipe away from the circulation pump.

[0005] The following are further improvements to the above technical solution:

[0006] 1. In the above scheme, the heat-conducting copper pipe and the heat-dissipating copper pipe are both flat copper pipes.

[0007] 2. In the above solution, the heat dissipation copper pipe further includes a first section connected to the circulation pump at one end and a second section connected to the liquid cooling channel at the other end. The first section and the second section each pass through the outside of the fan's air outlet and are welded to the heat dissipation fin assembly.

[0008] 3. In the above scheme, the first section and the second section of the heat dissipation copper pipe are connected by an arc-shaped section.

[0009] 4. In the above scheme, the fan has two air outlets and two heat dissipation fins.

[0010] 5. In the above scheme, the first section and the second section of the heat dissipation copper pipe are parallel to each other in the area outside the fan outlet.

[0011] Due to the application of the above technical solution, this utility model has the following advantages and effects compared with the prior art:

[0012] This utility model features a built-in liquid-cooled heat sink, which includes a circulation pump and a liquid-cooled plate with a built-in liquid-cooling channel. One side of the liquid-cooled plate is used to contact the heat source surface. One end of the liquid-cooling channel is connected to one end of the circulation pump through a heat-conducting copper pipe, and the other end of the liquid-cooling channel is connected to the other end of the circulation pump through a heat-dissipating copper pipe. This allows the coolant to circulate between the heat-conducting copper pipe, the heat-dissipating copper pipe, and the liquid-cooling channel under the action of the circulation pump. The heat dissipation fins are welded to the section of the heat dissipation copper pipe away from the circulation pump, achieving an organic integration of liquid cooling and the built-in heat sink of the laptop. This improves heat dissipation efficiency without increasing size or thickness, meeting the higher requirements for heat sinks due to the improved hardware performance of laptops. Furthermore, the heat dissipation copper pipe further includes a first section connected to the circulation pump at one end and a second section connected to the liquid-cooling channel at the other end. Both the first and second sections pass through the outside of the fan's air outlet and are welded to the heat dissipation fins, saving space and greatly increasing the heat dissipation area of ​​the heat dissipation copper pipe with built-in coolant, further improving heat dissipation efficiency. Attached Figure Description

[0013] Appendix Figure 1 This is a structural schematic diagram of the built-in liquid cooling radiator of this utility model from one perspective;

[0014] Appendix Figure 2 This is a structural schematic diagram of the built-in liquid-cooled heat sink of this utility model from another perspective;

[0015] Appendix Figure 3 This is a cross-sectional view of the liquid cooling plate in the built-in liquid cooling radiator of this utility model.

[0016] In the above attached diagram: 1. Fan; 2. Heat sink fin assembly; 3. Circulation pump; 4. Liquid cooling plate; 41. Liquid cooling channel; 5. Thermal copper pipe; 6. Heat dissipation copper pipe; 61. First section; 62. Second section; 63. Arc-shaped section. Detailed Implementation

[0017] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0018] Example 1: A built-in liquid-cooled heat sink includes: a fan 1 with at least one air outlet and at least one heat dissipation fin assembly 2 correspondingly disposed outside the air outlet of the fan 1; a circulation pump 3 and a liquid-cooled plate 4 with a built-in liquid-cooled flow channel 41; one side surface of the liquid-cooled plate 4 is used to contact the heat source surface; one end of the liquid-cooled flow channel 41 is connected to one end of the circulation pump 3 through a heat-conducting copper pipe 5; the other end of the liquid-cooled flow channel 41 is connected to the other end of the circulation pump 3 through a heat-dissipating copper pipe 6; so that the coolant circulates between the heat-conducting copper pipe 5, the heat-dissipating copper pipe 6 and the liquid-cooled flow channel 41 under the action of the circulation pump 3; the heat dissipation fin assembly 2 and the section of the heat-dissipating copper pipe 6 away from the circulation pump 3 are welded together.

[0019] The aforementioned heat-conducting copper pipe 5 and heat-dissipating copper pipe 6 are both flat copper pipes; the aforementioned heat-dissipating copper pipe 6 further includes a first section 61 connected at one end to the circulating pump 3 and a second section 62 connected at one end to the liquid cooling channel 41. The aforementioned first section 61 and second section 62 each pass through the outside of the air outlet of the fan 1 and are welded to the heat dissipation fin assembly 2.

[0020] Example 2: A built-in liquid-cooled heat sink includes: a fan 1 with at least one air outlet and at least one heat dissipation fin assembly 2 correspondingly disposed outside the air outlet of the fan 1; a circulation pump 3 and a liquid-cooled plate 4 with a built-in liquid-cooled flow channel 41; one side surface of the liquid-cooled plate 4 is used to contact the heat source surface; one end of the liquid-cooled flow channel 41 is connected to one end of the circulation pump 3 through a heat-conducting copper pipe 5; the other end of the liquid-cooled flow channel 41 is connected to the other end of the circulation pump 3 through a heat-dissipating copper pipe 6; so that the coolant circulates between the heat-conducting copper pipe 5, the heat-dissipating copper pipe 6 and the liquid-cooled flow channel 41 under the action of the circulation pump 3; the heat dissipation fin assembly 2 and the section of the heat-dissipating copper pipe 6 away from the circulation pump 3 are welded together.

[0021] The aforementioned heat dissipation copper pipe 6 further includes a first section 61 connected to the circulation pump 3 at one end and a second section 62 connected to the liquid cooling channel 41 at one end. The first section 61 and the second section 62 each pass through the outside of the air outlet of the fan 1 and are welded to the heat dissipation fin assembly 2.

[0022] The first section 61 and the second section 62 of the aforementioned heat dissipation copper pipe 6 are connected by an arc-shaped section 63; the air outlet of the aforementioned fan 1 and the heat dissipation fin group 2 are both provided with two; the first section 61 and the second section 62 of the aforementioned heat dissipation copper pipe 6 are parallel to each other in the area outside the air outlet of the fan 1.

[0023] The coolant flows through the liquid cooling plate via the work of the circulation pump, carrying away the heat transferred from the heat source chip to the liquid cooling plate, which has a very low thermal resistance. After passing through the liquid cooling plate, the coolant temperature rises, then flows through the heat dissipation fins, is cooled by the fan, and then flows back to the circulation pump to complete the pipeline circulation.

[0024] When the aforementioned built-in liquid cooling radiator is adopted, it achieves an organic integration of liquid cooling and the built-in heat sink of the laptop, improving heat dissipation efficiency without increasing size and thickness, and meeting the higher requirements for heat sinks due to the improvement of laptop hardware performance. Furthermore, its heat dissipation copper pipe further includes a first section connected to the circulation pump at one end and a second section connected to the liquid cooling channel at the other end. The first section and the second section are each welded to the heat dissipation fin assembly outside the fan's air outlet, which saves space and can greatly increase the heat dissipation area of ​​the heat dissipation copper pipe with built-in coolant, further improving heat dissipation efficiency.

[0025] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A built-in liquid-cooled heat sink, comprising: A fan (1) having at least one air outlet and at least one heat dissipation fin assembly (2) correspondingly disposed outside the air outlet of the fan (1), characterized in that: it further includes a circulation pump (3) and a liquid cooling plate (4) with a built-in liquid cooling channel (41), one side surface of the liquid cooling plate (4) is used to contact the heat source surface, one end of the liquid cooling channel (41) is connected to one end of the circulation pump (3) through a heat-conducting copper pipe (5), and the other end of the liquid cooling channel (41) is connected to the other end of the circulation pump (3) through a heat dissipation copper pipe (6), so that the coolant circulates between the heat-conducting copper pipe (5), the heat dissipation copper pipe (6) and the liquid cooling channel (41) under the action of the circulation pump (3), and the heat dissipation fin assembly (2) and the heat dissipation copper pipe (6) are welded together in the section away from the circulation pump (3).

2. The built-in liquid-cooled heat sink according to claim 1, characterized in that: Both the heat-conducting copper pipe (5) and the heat-dissipating copper pipe (6) are flat copper pipes.

3. The built-in liquid-cooled heat sink according to claim 1 or 2, characterized in that: The heat dissipation copper pipe (6) further includes a first section (61) connected to the circulation pump (3) at one end and a second section (62) connected to the liquid cooling channel (41) at the other end. The first section (61) and the second section (62) each pass through the outside of the air outlet of the fan (1) and are welded to the heat dissipation fin assembly (2).

4. The built-in liquid-cooled heat sink according to claim 3, characterized in that: The first section (61) and the second section (62) of the heat dissipation copper pipe (6) are connected by an arc-shaped section (63).

5. The built-in liquid-cooled heat sink according to claim 3, characterized in that: The fan (1) has two air outlets and two heat dissipation fin groups (2).

6. The built-in liquid-cooled heat sink according to claim 3, characterized in that: The first section (61) and the second section (62) of the heat dissipation copper pipe (6) are parallel to each other in the area outside the air outlet of the fan (1).

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