High-heat-flux heat dissipation cold plate with good heat dissipation performance
By designing complex cold plate body structures and heat dissipation components in high heat flow density heat dissipation cold plates, the problems of low coolant utilization and insufficient heat dissipation performance are solved, and more efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202422208501.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-09
AI Technical Summary
When the existing high-heat flow density heat dissipation cold plate is used, the coolant cannot stay effectively, resulting in low coolant utilization, and the heat dissipation performance of the cold plate needs to be improved.
A cooling cold plate with a structure including a cold plate body, an end cover, a liquid inlet pipe, a liquid discharge pipe, an inner cavity, a through hole, a partition, a heat dissipation component, etc. is designed. The cold plate body is equipped with main channel, left through hole, right through hole, partition and discharge port. The coolant improves flow time and utilization through these structures, and the heat dissipation fan and arc-shaped heat dissipation fins are installed to assist in heat dissipation.
By improving the flow time and utilization rate of coolant in the cold plate body, the heat dissipation performance of the cold plate is improved, ensuring effective heat dissipation in high heat flow density occasions.
Smart Images
Figure CN222996938U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat dissipation cold plate, in particular to a high heat flux density heat dissipation cold plate with good heat dissipation performance. Background Art
[0002] The main cooling methods of existing electronic devices are: natural air convection and radiation, air cold plate (forced air cooling with heat sink), liquid cooling (forced indirect liquid cooling with water cold plate), and evaporation cooling (phase change cooling with heat pipe). Among them, evaporation cooling and liquid cooling have the highest heat dissipation efficiency. However, due to volume and cost limitations, evaporation cooling can be used in very few occasions. In contrast, water cold plate cooling is widely used in heat dissipation occasions with high heat flux density due to its high heat dissipation efficiency, small volume of the heat dissipation substrate, and compact structure of the heat dissipation system.
[0003] With the rapid development of power electronics technology, the volume and power density of electronic devices are constantly increasing, resulting in greater heat dissipation of the equipment: when the existing high heat flux density heat dissipation cold plate is in use, the coolant cannot stay well in the cold plate during use, the utilization rate of the coolant is low, and at the same time, the heat dissipation performance of the cold plate also needs to be improved. Content of the Utility Model
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a high heat flux density heat dissipation cold plate with good heat dissipation performance, effectively solving the problems that when the existing high heat flux density heat dissipation cold plate is in use, the coolant cannot stay well in the cold plate during use, the utilization rate of the coolant is low, and at the same time, the heat dissipation performance of the cold plate also needs to be improved.
[0005] To achieve the above object, the utility model provides the following technical solutions: The utility model includes a cold plate body for heat dissipation, a first end cover and a second end cover respectively installed at both ends of the cold plate body, and also includes a liquid inlet pipe, a liquid discharge pipe, a first inner cavity, a main channel, a left through hole, a right through hole, a partition, an upper through hole, a lower through hole, a discharge port, a second inner cavity and a heat dissipation component. A first inner cavity is arranged inside the cold plate body near one end, a second inner cavity is arranged inside the cold plate body near the other end, a main channel is arranged in the middle of the inner side of the cold plate body, a left through hole and a right through hole are respectively arranged on both sides of one end of the main channel, several partitions are arranged on both sides of the main channel, upper through holes are arranged at the top ends of the partitions in a staggered manner, lower through holes are arranged at the bottom ends of the partitions in a staggered manner, discharge ports are arranged at both ends of the cold plate body near the positions of the ends, and a heat dissipation component is arranged on the surface of the cold plate body.
[0006] Preferably, a liquid inlet pipe is arranged in the middle of one side of the first end cover, and a liquid discharge pipe is arranged in the middle of one side of the second end cover.
[0007] Preferably, the upper through holes and the lower through holes are arranged at intervals.
[0008] Preferably, the discharge port communicates with the second inner cavity, and the second inner cavity communicates with the liquid discharge pipeline.
[0009] Preferably, the heat dissipation component includes a bottom plate, fixing bolts, arc-shaped heat dissipation fins and a heat dissipation fan. The bottom plate is fixedly connected to the cold plate body through the fixing bolts. A plurality of arc-shaped heat dissipation fins are arranged on the surface of the bottom plate, and a heat dissipation fan is installed in the middle of the bottom plate.
[0010] Preferably, thermal silicone is filled between the bottom plate and the cold plate body.
[0011] Beneficial effects: When the present utility model is in use, the coolant entering the first inner cavity through the liquid inlet pipeline flows towards both sides through the left through hole and the right through hole at one end of the main channel. The coolant flowing towards both sides flows along the upper through hole and the lower through hole on the partition plate, increasing the flow time of the coolant in the cold plate body, improving the utilization rate of the coolant to a certain extent, and ensuring the heat dissipation performance. At the same time, when in use, the heat dissipation fan installed blows air to the outside, and the blown air flows to the outside along the arc-shaped heat dissipation fins, thereby taking out the heat on the arc-shaped heat dissipation fins and improving the heat dissipation performance of the arc-shaped heat dissipation fins, ensuring the heat dissipation performance of the cold plate body. The structure of the present utility model is novel and ingenious, increasing the flow time of the coolant in the cold plate body, improving the utilization rate of the coolant to a certain extent, and at the same time, assisting in dissipating heat from the cold plate body to ensure the heat dissipation performance of the cold plate body. Description of the Drawings
[0012] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0014] Figure 2 is a schematic diagram of the internal structure of the cold plate body of the present utility model;
[0015] Figure 3 is a schematic diagram of the structure of the heat dissipation component of the present utility model;
[0016] Reference numerals in the drawings: 1, cold plate body; 2, first end cover; 3, second end cover; 4, liquid inlet pipeline; 5, liquid discharge pipeline; 6, first inner cavity; 7, main channel; 8, left through hole; 9, right through hole; 10, partition plate; 11, upper through hole; 12, lower through hole; 13, discharge port; 14, second inner cavity; 15, heat dissipation component; 16, bottom plate; 17, fixing bolts; 18, arc-shaped heat dissipation fins; 19, heat dissipation fan. Detailed Description of the Embodiments
[0017] The following further elaborates in detail on the specific embodiments of the present utility model in conjunction with the attached Figures 1-3 drawings.
[0018] Example 1, which is given by Figures 1-3 Figures 1-3 , the present utility model provides a high heat flux density cooling plate with good heat dissipation performance, including a cooling plate body 1 for heat dissipation, a first end cover 2 and a second end cover 3 respectively installed at both ends of the cooling plate body 1, and also including a liquid inlet pipe 4, a liquid discharge pipe 5, a first inner cavity 6, a main channel 7, a left through hole 8, a right through hole 9, a partition 10, an upper through hole 11, a lower through hole 12, a discharge port 13, a second inner cavity 14 and a heat dissipation component 15. A first inner cavity 6 is arranged inside the cooling plate body 1 near one end, a second inner cavity 14 is arranged inside the cooling plate body 1 near the other end, a main channel 7 is arranged in the middle of the inner side of the cooling plate body 1, a left through hole 8 and a right through hole 9 are respectively arranged on both sides of one end of the main channel 7, a plurality of partitions 10 are arranged on both sides of the main channel 7, upper through holes 11 are arranged at the top ends of the partitions 10 in a staggered manner, lower through holes 12 are arranged at the bottom ends of the partitions 10 in a staggered manner, discharge ports 13 are arranged at both ends of the inside of the cooling plate body 1, and a heat dissipation component 15 is arranged on the surface of the cooling plate body 1.
[0019] Example 2
[0020] In Example 1, the first end cover 2 and the second end cover 3 are inconvenient to use. Referring to Figure 1 , as another preferred embodiment, the difference from Example 1 is that a liquid inlet pipe 4 is arranged in the middle of one side of the first end cover 2, and a liquid discharge pipe 5 is arranged in the middle of one side of the second end cover 3, which is convenient for the use of the first end cover 2 and the second end cover 3.
[0021] Example 3
[0022] In Example 1, the upper through hole 11 and the lower through hole 12 are inconvenient to use. Referring to Figure 1 , as another preferred embodiment, the difference from Example 1 is that the upper through hole 11 and the lower through hole 12 are arranged at intervals, so that the coolant can circulate.
[0023] Example 4
[0024] In Example 1, the discharge port 13 is inconvenient to use. Referring to Figure 1 , as another preferred embodiment, the difference from Example 1 is that the discharge port 13 is communicated with the second inner cavity 14, and the second inner cavity 14 is communicated with the liquid discharge pipe 5, which is convenient for the connection and use of the discharge port 13.
[0025] Example 5
[0026] In Example 1, it is inconvenient to dissipate heat from the cooling plate body 1. Referring to Figure 1, as another preferred embodiment, different from the first embodiment, the heat dissipation component 15 includes a bottom plate 16, fixing bolts 17, arc-shaped heat dissipation fins 18 and a heat dissipation fan 19. The bottom plate 16 is fixedly connected to the cold plate body 1 through the fixing bolts 17. A plurality of arc-shaped heat dissipation fins 18 are arranged on the surface of the bottom plate 16, and a heat dissipation fan 19 is installed in the middle of the bottom plate 16. When in use, the heat dissipation fan 19 installed blows air outward, and the blown air flows outward along the arc-shaped heat dissipation fins 18, thereby taking out the heat on the arc-shaped heat dissipation fins 18, improving the heat dissipation performance of the arc-shaped heat dissipation fins 18, and ensuring the heat dissipation performance of the cold plate body 1.
[0027] Embodiment Six
[0028] In Embodiment Five, the thermal conductivity between the bottom plate 16 and the cold plate body 1 is insufficient. Refer to Figure 1 , as another preferred embodiment, different from Embodiment Five, a thermal conductive silicone is filled between the bottom plate 16 and the cold plate body 1 to ensure the thermal conductivity between the bottom plate 16 and the cold plate body 1.
[0029] During specific use: When the present utility model is in use, the coolant entering the first inner cavity 6 through the liquid inlet pipe 4 flows toward both sides through the left through hole 8 and the right through hole 9 at one end of the main channel 7. The coolant flowing toward both sides flows along the upper through hole 11 and the lower through hole 12 on the partition plate 10, increasing the flow time of the coolant in the cold plate body 1, improving the utilization rate of the coolant to a certain extent, and ensuring the heat dissipation performance. At the same time, when in use, the heat dissipation fan 19 installed blows air outward, and the blown air flows outward along the arc-shaped heat dissipation fins 18, thereby taking out the heat on the arc-shaped heat dissipation fins 18, improving the heat dissipation performance of the arc-shaped heat dissipation fins 18, and ensuring the heat dissipation performance of the cold plate body 1.
[0030] Beneficial effects: The structure of the present utility model is novel and ingeniously conceived, increasing the flow time of the coolant in the cold plate body 1, improving the utilization rate of the coolant to a certain extent. At the same time, it can assist in dissipating heat from the cold plate body 1 and ensure the heat dissipation performance of the cold plate body 1.
[0031] Through those skilled in the art, all the electrical components in this case are connected to their adapted power supplies through wires, and appropriate controllers and encoders should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of the electrical components working successively in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of the electrical control will be made.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A high heat flux heat dissipation cold plate with good heat dissipation performance, comprising a cold plate body (1) for heat dissipation and a first end cover (2) and a second end cover (3) respectively mounted at two ends of the cold plate body (1), characterized in that: The cold plate body (1) further comprises a liquid inlet pipe (4), a liquid discharge pipe (5), a first inner cavity (6), a main channel (7), a left through hole (8), a right through hole (9), a partition (10), an upper through hole (11), a lower through hole (12), a discharge port (13), a second inner cavity (14) and a heat dissipation component (15); the first inner cavity (6) is arranged inside the cold plate body (1) near one end, the second inner cavity (14) is arranged inside the cold plate body (1) near the other end, and the inner side of the cold plate body (1) A main channel (7) is arranged in the middle, a left through hole (8) and a right through hole (9) are arranged on both sides of one end of the main channel (7), a plurality of partitions (10) are arranged on both sides of the main channel (7), upper through holes (11) are arranged in a staggered manner at the top of the partitions (10), and lower through holes (12) are arranged in a staggered manner at the bottom of the partitions (10), discharge ports (13) are arranged near both ends of the cold plate body (1), and a heat dissipation component (15) is arranged on the surface of the cold plate body (1).
2. A high heat flux heat dissipation cold plate with good heat dissipation performance according to claim 1, characterized in that: A liquid inlet pipe (4) is provided in the middle of one side of the first end cover (2), and a liquid discharge pipe (5) is provided in the middle of one side of the second end cover (3).
3. A high heat flux heat dissipation cold plate with good heat dissipation performance according to claim 1, characterized in that: The upper through hole (11) and the lower through hole (12) are arranged at intervals.
4. The high heat flux heat dissipation cold plate with good heat dissipation performance according to claim 1, characterized in that: The discharge port (13) is in communication with the second inner cavity (14), and the second inner cavity (14) is in communication with the liquid discharge pipe (5).
5. The high heat flux heat dissipation cold plate with good heat dissipation performance according to claim 1, characterized in that: The heat dissipation assembly (15) comprises a base plate (16), fixing bolts (17), arc-shaped heat dissipation fins (18) and a heat dissipation fan (19); the base plate (16) is fixedly connected to the cold plate body (1) via the fixing bolts (17); a plurality of arc-shaped heat dissipation fins (18) are arranged on the surface of the base plate (16); and a heat dissipation fan (19) is installed in the middle of the base plate (16).
6. A high heat flux heat dissipation cold plate with good heat dissipation performance according to claim 5, characterized in that: Thermally conductive silicon is filled between the bottom plate (16) and the cold plate body (1).