Miniature efficient self-circulating electronic cooler

Abstract

The electronic cooler comprises a micro channel evaporator and a condenser. The said micro channel evaporator possesses a metal base with high thermal coefficient, and micro channels are enclosed base seat arranged along region of the base plane. Micro channels of the evaporator through steam pipe and liquid pipe is connected to the condenser forming a one-way cycle loop in series. The micro channel evaporator is located in space position below the condenser, making working fluid cycle in loop. In the invented cooler, heat quantity of heating electronic component (chip) drives circular flow of working fluid in loop composed of micro channel evaporator, steam pipe, condenser and liquid pipe without need of rotational mechanical pump so as to provide features of compact structure, simple, no noise, small size, high thermal conduction, and good cost performance ratio.

Description

technical field

[0001] The invention relates to a heat radiation cooling device for electronic components, in particular to a heat radiation cooling device for high heat flux density electronic components. Background technique

[0002] In recent years, with the development of high-tech information industry, people are eager to speed up the research on "thermal management" technology. One of the reasons is that the integration degree of electronic circuits has been greatly improved, and the heat generation has increased. The second is that the high-tech industry is improving. At the same time of integration, advanced and compact electronic packaging technology is also being developed. The above two reasons have greatly improved the heat flux.

[0003] In electronic cooler products, typical traditional products such as radiators and fans can no longer meet the current cooling needs of electronic components. Therefore, electronic cooler products with micro heat pipes and capill...

Examples

Embodiment 1

[0024] This miniature high-efficiency self-circulating electronic cooler such as figure 2 As shown, the microchannel evaporator 1, steam pipe 3, condenser 2 and liquid pipe 4 are connected in series in sequence to form a one-way circulation loop, wherein the microchannel evaporator 1 is processed on a copper plate base to process multiple parallel micro Groove is packaged with a copper plate on it, and the two ends are packaged with metal blocks and leave input and output ports, thereby forming the micro channel 5 in the micro channel evaporator 1, the cross section of said micro channel is square, as shown in Figure 4 As shown, the width and depth of the microchannels are within 3 mm. The cross-section of said micro channel can also be triangular or circular, as shown in Fig. 5 and Fig. 6 . The structural form of forming said microchannel can also be shown in Figure 7, that is, a porous medium is assembled in the copper plate base of microchannel evaporator 1 to form said m...

Embodiment 2

[0026] The miniature high-efficiency self-circulating electronic cooler is shown in Figure 3, and the microchannel evaporator 1, the steam pipe 3, the condenser 2 and the liquid pipe 4 are sequentially connected in series to form a one-way circulation loop. Wherein the structure of the microchannel evaporator 1 is basically the same as that of the first embodiment. The condenser 2 is a serpentine copper tube with cooling fins 21 installed on the outside. The condenser 2 is located above the microchannel evaporator 1, so that the liquid working fluid filled in the circuit can form a self-circulation in the circuit under the action of gravity.

technical field

[0001] The invention relates to a heat radiation cooling device for electronic components, in particular to a heat radiation cooling device for high heat flux density electronic components. Background technique

[0002] In recent years, with the development of high-tech information industry, people are eager to speed up the research on "thermal management" technology. One of the reasons is that the integration degree of electronic circuits has been greatly improved, and the heat generation has increased. The second is that the high-tech industry is improving. At the same time of integration, advanced and compact electronic packaging technology is also being developed. The above two reasons have greatly improved the heat flux.

[0003] In electronic cooler products, typical traditional products such as radiators and fans can no longer meet the current cooling needs of electronic components. Therefore, electronic cooler products with micro heat pipes and capill...

Examples

Embodiment 1

[0024] This miniature high-efficiency self-circulating electronic cooler such as figure 2 As shown, the microchannel evaporator 1, steam pipe 3, condenser 2 and liquid pipe 4 are connected in series in sequence to form a one-way circulation loop, wherein the microchannel evaporator 1 is processed on a copper plate base to process multiple parallel micro Groove is packaged with a copper plate on it, and the two ends are packaged with metal blocks and leave input and output ports, thereby forming the micro channel 5 in the micro channel evaporator 1, the cross section of said micro channel is square, as shown in Figure 4 As shown, the width and depth of the microchannels are within 3 mm. The cross-section of said micro channel can also be triangular or circular, as shown in Fig. 5 and Fig. 6 . The structural form of forming said microchannel can also be shown in Figure 7, that is, a porous medium is assembled in the copper plate base of microchannel evaporator 1 to form said m...

Embodiment 2

[0026] The miniature high-efficiency self-circulating electronic cooler is shown in Figure 3, and the microchannel evaporator 1, the steam pipe 3, the condenser 2 and the liquid pipe 4 are sequentially connected in series to form a one-way circulation loop. Wherein the structure of the microchannel evaporator 1 is basically the same as that of the first embodiment. The condenser 2 is a serpentine copper tube with cooling fins 21 installed on the outside. The condenser 2 is located above the microchannel evaporator 1, so that the liquid working fluid filled in the circuit can form a self-circulation in the circuit under the action of gravity.

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