TWM482103U - Liquid gas shunt type heat exchange chamber - Google Patents

Description

Liquid-gas split heat exchange chamber

The present invention relates to a heat sink for electronic products, and more particularly to a heat sink for computers and communication products.

Most of the heat dissipation devices of the prior art electronic products are applied to a heat pipe, which comprises a pipeline passage, the pipeline passage includes an evaporation section and a condensation section, and the evaporation section has a liquid (working fluid), and when the evaporation section is heated, After the liquid evaporates into a gas, the gas moves from the evaporation section to the condensation section in the pipeline passage, and during the movement of the gas in the pipeline passage, the gas gradually becomes a liquid due to heat exchange loss, and the liquid passes through the capillary wall of the pipe wall. The structure returns to the evaporation section along the original path, and then can be heated again to evaporate into a gas, so that the tropical zone received by the evaporation section can be successfully discharged.

However, when the liquid in the evaporation section evaporates into a gas, the pressure will become larger. Therefore, when the gas returns to the original path after the gas becomes liquid in the pipeline passage, the shear force of the liquid-gas interface will generate additional resistance, so the maximum heat transfer amount and transmission. Distance is limited.

Therefore, nowadays, the manufacturer connects the two ends of the pipeline passage to a cavity, and hopes that gas enters the end of the pipeline passage from the cavity, becomes liquid in the pipeline passage, and then returns from the other end of the pipeline passage. To the cavity, a one-way flow is created without the pressure loss caused by the shear action at the liquid-gas interface; however, since there is no design in the cavity to prevent gas from entering either end of the pipe passage, the gas in the chamber Instead, it enters the pipeline channel from both ends, and after it finally becomes a liquid, it is still hindered whether it is going back to the cavity from the original road or the other end, so the liquid flow is still not smooth, and the overall heat dissipation effect is still poor. .

In view of the above shortcomings and deficiencies of the prior art, the present invention provides a liquid-gas split heat exchange chamber to smooth the flow of liquid in the loop-type pipeline passage, thereby improving the overall heat dissipation effect.

In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a liquid-gas split heat exchange chamber, which comprises at least one cavity unit, each cavity unit comprises: a cavity having an internal space, a cavity The partition body defines a partition portion that divides the inner space of the cavity into a heat receiving chamber and a return chamber. The partition portion has at least one fine passage therethrough, and the heat receiving chamber and the return chamber communicate with each other through the fine passages, and the partition portion is low. The heat conduction material; a pipeline passage, the two ends of which are connected to the cavity, and the two ends are respectively communicated with the heating chamber and the return chamber, and the diameter of the pipeline passage is larger than the diameter of each microchannel.

In the present use, the position of the heat receiving chamber corresponds to the position of the heat source, or the heat transfer material is used to conduct heat of the heat source to the heat receiving chamber, so that the liquid in the heat receiving chamber is evaporated into gas by heat, and the liquid in the return chamber is not directly heated, so the heat is heated. The chamber temperature will be greater than the return chamber, and the partition portion can reduce the heat energy loss from the heat receiving chamber to the return chamber, thereby causing a sufficient temperature difference between the heated chamber and the return chamber, and thus generating different saturated vapor pressures, which are different. The gas is driven to flow from the heat receiving chamber to the return chamber, and since the fine passage of the partition portion generates capillary pressure at this time, the high pressure gas of the heat receiving chamber will flow through the pipeline passage without flowing through the partition portion to the return chamber. After cooling into a liquid in the pipeline passage and returning to the return chamber, the fine passage of the partition portion again generates capillary pressure, and the liquid in the return chamber is backfilled to the heated chamber to be heated and evaporated, thereby achieving a one-way circulation of the flow. In turn, the purpose of creating heat exchange and heat dissipation is enhanced.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.

Referring to FIG. 1 , the first embodiment of the liquid-gas split heat exchange chamber of the present invention comprises a cavity unit 100 , which includes a cavity 10 and a pipeline passage 20 .

Referring to FIG. 1 to FIG. 4, the cavity 10 is rectangular and has an internal space. The cavity 10 is provided with a partition 11 which partitions the internal space of the cavity 10 into a rectangular heat receiving chamber 12. And a rectangular reflow chamber 13 (as shown in FIG. 1 and FIG. 2), the partition portion 11 has a plurality of microchannels 111 penetrating therethrough, and the microchannels 111 are adjacent to the top side of the partition portion 11 and are laterally spaced apart (as shown in FIG. 3). The heat receiving chamber 12 and the return chamber 13 communicate with each other through the fine passages 111, and the partition portion 11 is made of a low heat conductive material. In the present embodiment, the partition portion 11 is made of a material having a thermal conductivity lower than 100, but not limit.

Both ends of the pipeline passage 20 are connected to the cavity 10, and the two ends are respectively communicated with the heat receiving chamber 12 and the return chamber 13. The diameter of the pipeline passage 20 is larger than the diameter of each of the fine passages 111.

In use, the position of the heat receiving chamber 12 corresponds to the position of the heat source, or the heat of the heat source is transferred to the heat receiving chamber 12 by the heat conductive material, and the return chamber 13 is not directly heated, so the temperature of the heat receiving chamber 12 will be higher than that of the return chamber 13. And the partition 11 reduces the heat energy loss from the heat receiving chamber 12 to the return chamber 13 through its low heat conductive material to generate a sufficient temperature difference, thereby generating different saturated vapor pressures, and the pressure difference causes the gas in the heat receiving chamber 12 to be generated. To move to the return chamber 13, but due to the capillary pressure in the partition 11, the high pressure and high temperature gas of the heat receiving chamber 12 can not flow through the fine passage 111 of the partition 11 to the return chamber 13, so that the gas enters the pipeline passage 20; After the gas becomes liquid in the pipe passage 20, also because the pressure of the return chamber 13 is smaller than the pressure of the heat receiving chamber 12, the liquid continues to move toward the return chamber 13, and after the liquid moves to the return chamber 13, it passes through the partition portion 11. The fine track 111 gradually penetrates into the heat receiving chamber 12, and then can absorb heat and evaporate again; this creation makes the pipe pass by creating a pressure difference at both ends of the pipe passage 20. The liquid in the channel 20 can be moved unidirectionally and smoothly, and the heat exchange and heat dissipation effects are greatly enhanced.

Referring to FIG. 5, the following is a second embodiment of the present invention, which is substantially the same as the first embodiment, but the microchannels 111A of the partition 11A of the cavity 10A are not adjacent to the top side of the partition 11A. The average distribution is on the partition 11A and arranged neatly; the second embodiment can also achieve a pressure difference across the conduit passage 20A to allow the liquid in the conduit passage 20A to move unidirectionally and smoothly. The purpose.

Referring to FIG. 6 , the following is a third embodiment of the present invention, which is substantially the same as the second embodiment, but the fine tracks 111B of the partition 11B of the cavity 10B are randomly arranged; the third embodiment It is also possible to create a pressure difference across the line passage 20B for the purpose of unidirectionally and smoothly moving the liquid in the line passage 20B.

Referring to FIG. 7, the following is a fourth embodiment of the present invention, which is substantially the same as the first embodiment, but has two cavity units 100C, and the cavity 10C of the two cavity units 100C is connected, and the The heat receiving chambers 12C of the cavity 10C of the two cavity unit 100C are disposed adjacent to each other and disposed together with the heat source; the fourth embodiment can dissipate heat to the two pipe passages 20C of the two sets of cavity units 100C, and A pressure difference is generated at both ends of each of the pipe passages 20C, so that the liquid in each of the pipe passages 20C moves unidirectionally and smoothly, thereby achieving the purpose of effective heat dissipation.

Referring to FIG. 8, the following is a fifth embodiment of the present invention, which is substantially the same as the fourth embodiment, but the heat receiving chambers 12D of the cavity 10D of the two cavity unit 100D are not adjacently disposed, thereby The fifth embodiment can be disposed on two heat sources and at the same time effectively dissipate heat from the two heat sources.

Referring to FIG. 9, the following is a sixth embodiment of the present invention, which is substantially the same as the first embodiment, but has four cavity units 100E, and the cavities 10E of the cavity units 100E are arranged in a rectangular arrangement. Connected, and the heat receiving chambers 12E of the cavity 10E of the cavity unit 100E are disposed adjacent to each other and concentrated in the center, and the heat receiving chambers 12E are disposed together on the heat source; the sixth embodiment can disperse heat to the four groups of cavities The four pipeline passages 20E of the unit 100E, and the pressure difference between the two pipeline passages 20E, so that the liquid in each pipeline passage 20E moves unidirectionally and smoothly, thereby achieving the purpose of effective heat dissipation; The heat receiving chambers 12E of the sixth embodiment may not be disposed adjacent to each other, and may further dissipate heat from the plurality of heat sources at the same time. However, the technical principle is the same as that of the foregoing embodiment, and thus will not be further described herein.

Referring to FIG. 10, the following is a seventh embodiment of the present invention, which is substantially the same as the sixth embodiment, but the partition portion 11F of the cavity 10F of each cavity unit 100F extends to the diagonally opposite corner of the cavity 10F. Therefore, the heat receiving chambers 12F and the returning chambers 13F of the cavity 10F are all changed to a triangle shape; in addition, the heat receiving chambers 12F of the two cavity units 100F are disposed adjacent to each other, and the heat receiving chambers 12F of the other two cavity units 100F are also disposed adjacent to each other. Therefore, the heat dissipation of the two heat sources can be performed, but the heat-receiving chambers 12F of the seventh embodiment can be arranged in other manners, and further used to dissipate heat from three or four heat sources.

In other embodiments, each cavity unit may have only a single microchannel, which may be adjacent to the top side of the partition, or may be disposed at the center of the partition, so as to achieve the purpose of improving the heat dissipation effect of the present creation. .

In other embodiments, the cavity may not be rectangular, and the heated chamber and the return chamber may not be rectangular or triangular, and the cavity, the heated chamber, and the return chamber may be changed to other shapes according to various situations.

The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present creation, and has any technical field. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. The technical essence of the creation Any simple modification, equivalent change and modification of the above embodiments are still within the scope of the technical solution of the present invention.

100‧‧‧ cavity unit
10‧‧‧ cavity
11‧‧‧Departure
111‧‧‧Micro-channel
12‧‧‧heated room
13‧‧‧Return room
20‧‧‧pipeway
10A‧‧‧ cavity
11A‧‧‧Departure
111A‧‧‧ micro-channel
20A‧‧‧pipe channel
10B‧‧‧ cavity
11B‧‧‧Departure
111B‧‧‧ micro-channel
20B‧‧‧pipeway
100C‧‧‧ cavity unit
10C‧‧‧ cavity
12C‧‧‧heated room
20C‧‧‧pipe channel
100D‧‧‧ cavity unit
10D‧‧‧ cavity
12D‧‧‧heating room
100E‧‧‧ cavity unit
10E‧‧‧ cavity
12E‧‧‧heating room
20E‧‧‧pipe channel
100F‧‧‧ cavity unit
10F‧‧‧ cavity
11F‧‧‧Departure
12F‧‧‧heating room
13F‧‧‧Return room

Figure 1 is a perspective view of the first embodiment of the present invention. Figure 2 is a schematic cross-sectional view of the first embodiment of the present invention. Figure 3 is a side cross-sectional view of the first embodiment of the present invention. Figure 4 is a schematic cross-sectional view of the first embodiment of the present invention. Figure 5 is a side cross-sectional view of a second embodiment of the present invention. Figure 6 is a side cross-sectional view showing a third embodiment of the present invention. Figure 7 is a top plan view of a fourth embodiment of the present invention. Figure 8 is a top plan view of a fifth embodiment of the present invention. Figure 9 is a top plan view of a sixth embodiment of the present invention. Figure 10 is a top plan view of a seventh embodiment of the present invention.

100‧‧‧ cavity unit

10‧‧‧ cavity

11‧‧‧Departure

12‧‧‧heated room

13‧‧‧Return room

20‧‧‧pipeway

Claims (13)

A liquid-gas split heat exchange chamber comprising at least one cavity unit, each cavity unit comprising: a cavity having an internal space, the cavity being provided with a partition, the partition separating the internal space of the cavity into a heat a chamber and a recirculation chamber, wherein the partition portion has at least one fine passage therethrough, and the heat receiving chamber and the return chamber communicate with each other through the fine passages, the partition portion is a low heat conductive material; and a pipeline passage is connected to the cavity at both ends thereof, and The two ends are respectively connected with the heating chamber and the return chamber, and the diameter of the pipeline passage is larger than the diameter of each microchannel. The liquid-gas split heat exchange chamber according to claim 1, wherein the partition of the cavity of each cavity unit is provided with a plurality of fine tracks. The liquid-gas split heat exchange chamber according to claim 1, wherein the fine passage of the partition of the cavity of each cavity unit is formed through the top side of the partition. The liquid-gas split heat exchange chamber according to claim 2, wherein the microchannels of the partitions of the cavities of the respective cavity units are formed through the top side of the partition, and the microchannels are laterally spaced apart. The liquid-gas split heat exchange chamber according to claim 2, wherein the fine passages of the partition of the cavity of each cavity unit are arranged neatly. The liquid-gas split heat exchange chamber according to claim 2, wherein the fine passages of the partition of the cavity of each cavity unit are randomly arranged. The liquid-gas split heat exchange chamber according to any one of claims 1 to 6, wherein the cavity having each cavity unit is rectangular, and both the heat receiving chamber and the return chamber are rectangular. The liquid-gas split heat exchange chamber according to any one of claims 1 to 6, wherein the cavity having each cavity unit is rectangular, and both the heat receiving chamber and the return chamber are triangular. A liquid-gas split heat exchange chamber according to any one of claims 1 to 6, wherein there are two chamber units, the chambers of which are connected. The liquid-gas split heat exchange chamber of claim 9, wherein the heated chambers of the chambers of the two chamber units are disposed adjacent to each other. The liquid-gas split heat exchange chamber according to any one of claims 1 to 6, which has a four-chamber unit in which the cavities of the chamber units are connected in a rectangular arrangement. The liquid-gas split heat exchange chamber of claim 11, wherein the heated chambers of the chambers of the chamber units are disposed adjacent to each other. The liquid-gas split heat exchange chamber according to any one of claims 1 to 6, wherein the partition of each cavity unit is a material having a thermal conductivity lower than 100.