Notebook computer power supply cooling structure

Abstract

The utility model discloses a notebook computer power supply cooling structure which comprises a shell, a liquid cooling device and an air interchanger, and the liquid cooling device is tightly attached to the surface of the shell; a first heat dissipation plate and a second heat dissipation plate are respectively arranged on the surface of the shell; the first heat dissipation plate and the second heat dissipation plate are covered by the liquid cooling device; a ventilation cavity is formed between the ventilation device and the shell; and the liquid cooling device and the air exchange device exchange heat with the heat dissipation plate. Through a heat dissipation mode of combining air cooling and liquid cooling, heat generated by the power supply and conducted to the heat dissipation plate is dissipated, and efficient heat dissipation performance ensures that the power supply module can keep a low-temperature state during long-time high-load operation, so that performance reduction and service life shortening caused by overheating are avoided, and the service life of the power supply module is prolonged. And the overall stability of the notebook computer is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of computers, and particularly relates to a power supply cooling structure for a notebook computer. Background Art

[0002] With the continuous improvement of the performance of notebook computers, the heat generated by their internal components, especially the power supply module, during operation also increases accordingly. Long-term high-temperature operation will not only affect the performance and lifespan of the power supply module, but may also reduce the stability of the entire notebook computer.

[0003] However, the existing notebook power supplies use traditional air cooling for heat dissipation. Although the traditional air cooling method can relieve the heat dissipation problem to a certain extent, it often has poor effects under high loads and is difficult to meet the high requirements for heat dissipation performance of modern notebook computers. Therefore, the utility model proposes a power supply cooling structure for a notebook computer. Summary of the Utility Model

[0004] To solve the problem that the existing notebook power supplies use traditional air cooling for heat dissipation but have poor effects, the utility model provides a power supply cooling structure for a notebook computer, and the technical solution is as follows:

[0005] A power supply cooling structure for a notebook computer includes a housing, a liquid cooling device, and a ventilation device. The liquid cooling device is closely attached to the surface of the housing; first and second heat dissipation plates are respectively arranged on the surface of the housing; the first and second heat dissipation plates are covered by the liquid cooling device; a ventilation cavity is formed between the ventilation device and the housing; the liquid cooling device and the ventilation device perform heat exchange with the heat dissipation plates.

[0006] Preferably, the liquid cooling device includes a liquid cooling box body, a liquid inlet, a liquid outlet, a circulation pump, and liquid cooling pipes; the liquid inlet and the liquid outlet are arranged at the top of the liquid cooling box body; both the liquid inlet and the liquid outlet extend into the liquid cooling box body; the liquid cooling box body is filled with a coolant; the liquid inlet and the liquid outlet are connected by the liquid cooling pipes; a circulation pump is arranged at the bottom of the liquid cooling pipes.

[0007] Preferably, the ventilation device includes a first air inlet, a second air inlet, and an exhaust fan; the first air inlet and the second air inlet are respectively arranged on the side wall of the housing; the exhaust fan is arranged on the upper surface of the housing near the second air inlet; the exhaust fan is fixedly connected to the housing through a mounting column platform.

[0008] Preferably, a ventilation cavity is formed among the first air inlet, the housing, and the second air inlet; both the first air inlet and the second air inlet are provided with dust-proof filters.

[0009] Preferably, both the first heat dissipation plate and the second heat dissipation plate are graphite heat dissipation plates, which conduct the heat of the notebook power supply to the coolant in the liquid cooling box for heat exchange.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the heat dissipation method combining air cooling and liquid cooling, the heat generated by the power supply and conducted to the heat dissipation plate is dissipated. The efficient heat dissipation performance ensures that the power supply module can maintain a low temperature state during long-term high-load operation, thereby avoiding performance degradation and shortened lifespan caused by overheating, and improving the overall stability of the notebook computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a three-dimensional structural schematic diagram of a notebook computer power supply cooling structure;

[0012] Figure 2 is a three-dimensional structural schematic diagram of the housing of a notebook computer power supply cooling structure;

[0013] Figure 3 is a three-dimensional structural schematic diagram of the heat dissipation plate of a notebook computer power supply cooling structure;

[0014] Figure 4 is a three-dimensional structural schematic diagram of the inlet and outlet of a notebook computer power supply cooling structure.

[0015] Reference numerals: 1. Housing; 2. Liquid cooling box; 3. First heat dissipation plate; 4. Second heat dissipation plate; 5. First air inlet; 6. Second air inlet; 7. Exhaust fan; 8. Liquid inlet; 9. Liquid outlet; 10. Mounting post platform; 11. Circulation pump; 12. Liquid cooling pipeline. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Please refer to Figures 1 to 4 , a notebook computer power supply cooling structure involved in this embodiment includes a housing 1, a liquid cooling device, and a ventilation device. The liquid cooling device is tightly attached to the surface of the housing 1; the surface of the housing 1 is respectively provided with a first heat dissipation plate 3 and a second heat dissipation plate 4; the first heat dissipation plate 3 and the second heat dissipation plate 4 are covered by the liquid cooling device; a ventilation cavity is formed between the ventilation device and the housing 1; the liquid cooling device and the ventilation device perform heat exchange with the heat dissipation plate.

[0018] In this embodiment, the liquid cooling device includes a liquid cooling box body 2, a liquid inlet 8, a liquid outlet 9, a circulation pump 11, and a liquid cooling pipeline 12; the liquid inlet 8 and the liquid outlet 9 are arranged at the top of the liquid cooling box body 2; both the liquid inlet 8 and the liquid outlet 9 extend into the liquid cooling box body 2; the liquid cooling box body 2 is filled with a coolant; the liquid inlet 8 and the liquid outlet 9 are connected by the liquid cooling pipeline 12; the circulation pump 11 is arranged at the bottom of the liquid cooling pipeline 12.

[0019] Both the liquid inlet 8 and the liquid outlet 9 extend into the liquid cooling box body 2; the liquid cooling box body 2 is filled with a coolant; the circulation pump 11 is arranged at the bottom of the liquid cooling pipeline 12; the liquid inlet 8 and the liquid outlet 9 are connected by the liquid cooling pipeline 12.

[0020] One end of the liquid cooling pipeline 12 is connected to the liquid inlet 8, and the other end is connected to the liquid outlet 9, forming a closed-loop cooling system. The circulation pump 11 is installed at the bottom of the liquid cooling pipeline 12 and is responsible for driving the coolant to circulate in the pipeline.

[0021] The circulation pump 11 drives the coolant to circulate between the liquid inlet 8, inside the liquid cooling box body 2, and the liquid outlet 9 through the liquid cooling pipeline 12. The coolant enters the liquid cooling box body 2 from the liquid inlet 8, flows out from the liquid outlet 9 after heat exchange, and then returns to the liquid inlet 8 through the liquid cooling pipeline 12, forming a continuous circulation process to continuously absorb and carry away the heat on the heat dissipation plate.

[0022] Both the first heat dissipation plate 3 and the second heat dissipation plate 4 are graphite heat dissipation plates. Due to the high thermal conductivity of the graphite material, it can quickly conduct the heat generated by the notebook power supply to the surface of the heat dissipation plate, and then perform heat exchange through the coolant in the liquid cooling box body 2, thereby realizing the rapid dissipation of heat.

[0023] In this embodiment, the ventilation device includes a first air inlet 5, a second air inlet 6, and an exhaust fan 7; the first air inlet 5 and the second air inlet 6 are respectively arranged on the side wall of the housing 1 for sucking in external air; the exhaust fan 7 is arranged on the upper surface of the housing 1 near the second air inlet 6; the exhaust fan 7 is fixedly connected to the housing 1 through a mounting column platform 10. The startup of the exhaust fan 7 will accelerate the air flow in the ventilation cavity inside the housing 1, forming a convection from the air inlet to the exhaust fan, effectively taking away the heat inside the housing 1 and the heat dissipation plate.

[0024] A ventilation cavity is formed among the first air inlet 5, the housing 1, and the second air inlet 6; both the first air inlet 5 and the second air inlet 6 are provided with dust-proof filters to prevent dust and sundries from entering the housing 1.

[0025] Working principle of the present utility model: When the power supply of the laptop starts to work, the circulation pump 11 starts, driving the coolant to circulate in the liquid cooling box body 2, and the exhaust fan 7 starts simultaneously to prepare for air cooling. The heat generated by the power supply is transferred to the graphite-type heat dissipation plate through heat conduction. At this time, the heat on the heat dissipation plate exchanges heat with the coolant in the liquid cooling box body 2. Meanwhile, the ventilation device inhales air through the air inlet to form a convection, absorbs heat when flowing through the lower surface of the heat dissipation plate and takes it away, and the hot air carrying the heat is discharged outside the housing 1 through the exhaust fan 7. The whole process forms a closed-loop heat dissipation system to ensure that the laptop power supply can operate stably during long-term high-load operation.

[0026] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A notebook computer power supply cooling structure, comprising a housing (1), a liquid cooling device and a ventilation device, characterized in that: The liquid cooling device is tightly fitted on the surface of the shell (1); the surface of the shell (1) is respectively provided with a first heat sink (3) and a second heat sink (4); the first heat sink (3) and the second heat sink (4) are covered by the liquid cooling device; a ventilation cavity is formed between the ventilation device and the shell (1); the liquid cooling device and the ventilation device perform heat exchange with the heat sink.

2. A notebook computer power supply cooling structure according to claim 1, characterized in that: The liquid cooling device comprises a liquid cooling box body (2), a liquid inlet (8), a liquid outlet (9), a circulation pump (11) and a liquid cooling pipe (12); the liquid inlet (8) and the liquid outlet (9) are arranged at the top of the liquid cooling box body (2); the liquid inlet (8) and the liquid outlet (9) both extend into the liquid cooling box body (2); the liquid cooling box body (2) is filled with cooling liquid; the liquid inlet (8) and the liquid outlet (9) are connected via a liquid cooling pipe (12); and a circulation pump (11) is arranged at the bottom of the liquid cooling pipe (12).

3. The notebook computer power supply cooling structure according to claim 1, characterized in that: The ventilation device comprises a first air inlet (5), a second air inlet (6) and an exhaust fan (7); the first air inlet (5) and the second air inlet (6) are respectively arranged on the side walls of the shell (1); the exhaust fan (7) is arranged on the upper surface of the shell (1) close to the second air inlet (6); the exhaust fan (7) is fixedly connected to the shell (1) via a mounting column (10).

4. The notebook computer power supply cooling structure according to claim 3, characterized in that: A ventilation cavity is formed between the first air inlet (5), the shell (1) and the second air inlet (6); and both the first air inlet (5) and the second air inlet (6) are provided with dust-proof filters.

5. The notebook computer power supply cooling structure according to claim 1, characterized in that: The first heat sink (3) and the second heat sink (4) are both graphite heat sinks that conduct heat from the notebook power supply to the cooling liquid in the liquid cooling box (2) for heat exchange.

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