CN210840471U - Phase change radiator with liquid storage structure - Google Patents
Phase change radiator with liquid storage structure Download PDFInfo
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- CN210840471U CN210840471U CN201921438904.7U CN201921438904U CN210840471U CN 210840471 U CN210840471 U CN 210840471U CN 201921438904 U CN201921438904 U CN 201921438904U CN 210840471 U CN210840471 U CN 210840471U
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Abstract
The present invention relates to electronic devices, and more particularly to heat dissipation in a server, a network device, a power battery, and other high power electronic devices. A phase change radiator with a liquid storage structure is characterized in that the liquid storage structure is arranged between an evaporation end and a condensation end in a phase change cavity and is of a capillary porous structure, one end of the liquid storage structure is provided with a plurality of contacts to be in contact with the evaporation end, so that liquid can directly flow back to each area of the evaporation end without flowing back to a core area through an edge area, liquid can be rapidly supplemented, all areas of the evaporation end can continuously perform evaporation and heat dissipation, and the local area of the evaporation end is prevented from being too high in temperature. The liquid storage structure stores a certain amount of liquid, so that the difference between the evaporation capacity and the condensation capacity can be effectively compensated when the instantaneous heat density rises, the liquid at the evaporation end is continuously supplemented, and the temperature at the evaporation end is kept stable. One end of the liquid storage structure is in contact with a liquid return channel from the condensation end to the evaporation end, so that liquid can be supplemented, and a circulation passage is formed.
Description
Technical Field
The present invention relates to electronic devices, and more particularly to heat dissipation in power batteries, servers, network devices, and other high power electronic devices.
Background
The heat pipe is a high-efficiency phase-change radiator, and the heat is quickly conducted by utilizing the phase-change process that a liquid medium is condensed at the cold end after being evaporated at the hot end. The interior of the heat pipe is pumped into a negative pressure state and filled with proper liquid, and the liquid has a low boiling point and is easy to volatilize. The inner wall of the heat pipe is provided with a capillary porous structure. When the evaporation end is heated, liquid in the capillary structure is quickly vaporized, vapor flows to the condensation end under the action of heat diffusion power and is condensed at the cold end to release heat, and the liquid flows back to the evaporation end along the porous material under the action of capillary action, so that the circulation is not stopped until the temperatures at the two ends are equal, and at the moment, the heat diffusion of the vapor is stopped.
In the application scene of high heat flux density, the liquid at the evaporation end is quickly vaporized, the speed of the liquid flowing back to the evaporation end along the porous material by virtue of capillary action is not enough to completely cover the evaporation area, the liquid starts to evaporate after entering the evaporation area, and the liquid is evaporated before reaching the core area, so that the temperature of the core area at the evaporation end is higher than that of the edge area at the evaporation end. Resulting in a higher surface temperature of the heat sink chip.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a take phase transition radiator of stock solution structure.
The utility model provides a technical scheme that its technical problem adopted is:
a phase-change radiator with a liquid storage structure is characterized in that the liquid storage structure is arranged between an evaporation end and a condensation end in a phase-change cavity and is of a capillary porous structure, and one end of the liquid storage structure is provided with a plurality of contacts to be in contact with the evaporation end, so that liquid can directly flow back to each area of the evaporation end without flowing back to a core area through an edge area. One end of the liquid storage structure is in contact with a liquid return channel from the condensation end to the evaporation end, and liquid can be supplemented.
The utility model has the advantages that:
a phase change radiator with a liquid storage structure is characterized in that the liquid storage structure is arranged between an evaporation end and a condensation end in a phase change cavity and is of a capillary porous structure, one end of the liquid storage structure is provided with a plurality of contacts to be in contact with the evaporation end, so that liquid can directly flow back to each area of the evaporation end without flowing back to a core area through an edge area, liquid can be rapidly supplemented, all areas of the evaporation end can continuously perform evaporation and heat dissipation, and the local area of the evaporation end is prevented from being too high in temperature. The liquid storage structure stores a certain amount of liquid, so that the difference between the evaporation capacity and the condensation capacity can be effectively compensated when the instantaneous heat density rises, the liquid at the evaporation end is continuously supplemented, and the temperature at the evaporation end is kept stable. One end of the liquid storage structure is in contact with a liquid return channel from the condensation end to the evaporation end, so that liquid can be supplemented, and a circulation passage is formed.
Drawings
Fig. 1 is a schematic structural diagram of a heat pipe with a liquid storage structure according to the present invention.
Fig. 2 is a schematic structural view of a vapor chamber with a liquid storage structure according to the present invention.
In the figure, 1, a heat pipe, 2, a phase change cavity, 3, an evaporation end, 4, a condensation end, 5, a liquid storage structure, 6, a contact, 7, a marginal area, 8, a core area, 9, a return channel and 10, a temperature equalizing plate.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1: a liquid storage structure 5 is arranged between an evaporation end 3 and a condensation end 4 of a phase change cavity 2, the liquid storage structure 5 is of a capillary porous structure, one end of the liquid storage structure 5 is provided with a plurality of contacts 6 to be in contact with the evaporation end 3, and liquid can directly flow back to each area of the evaporation end 3 without flowing back to a core area 8 through an edge area 7. One end of the liquid storage structure 5 is in contact with a liquid return channel 9 from the condensation end 4 to the evaporation end 3, and liquid can be supplemented.
As shown in fig. 2: a liquid storage structure 5 is arranged between an evaporation end 3 and a condensation end 4 of a phase change cavity 2, the liquid storage structure 5 is of a capillary porous structure, one end of the liquid storage structure 5 is provided with a plurality of contacts 6 to be in contact with the evaporation end 3, and liquid can directly flow back to each area of the evaporation end 3 without flowing back to a core area 8 through an edge area 7. One end of the liquid storage structure 5 is in contact with a liquid return channel 9 from the condensation end 4 to the evaporation end 3, and liquid can be supplemented.
Claims (1)
1. The utility model provides a take phase transition radiator of stock solution structure which characterized by: a liquid storage structure is arranged between an evaporation end and a condensation end in the phase change cavity and is of a capillary porous structure, one end of the liquid storage structure is provided with a plurality of contacts to be in contact with the evaporation end, and one end of the liquid storage structure is in contact with a liquid backflow channel from the condensation end to the evaporation end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438904.7U CN210840471U (en) | 2019-09-02 | 2019-09-02 | Phase change radiator with liquid storage structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921438904.7U CN210840471U (en) | 2019-09-02 | 2019-09-02 | Phase change radiator with liquid storage structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210840471U true CN210840471U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921438904.7U Active CN210840471U (en) | 2019-09-02 | 2019-09-02 | Phase change radiator with liquid storage structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210840471U (en) |
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2019
- 2019-09-02 CN CN201921438904.7U patent/CN210840471U/en active Active
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