TWI755078B - Water cooling device and manifold thereof - Google Patents

Abstract

A water cooling device includes a first manifold, a second manifold and a plurality of tubes. The first manifold includes a receiving chamber and a plurality of distribution chamber. The receiving chamber has an inlet for receiving a working fluid. Each of the distribution chambers includes a first wall portion and a second wall portion opposite to the first wall portion. The first wall portion has an opening in communication with the receiving chamber. The second wall portion has an outlet. Each of the tubes is connected to the outlet of the respective distribution chamber on one end, and is connected to the second manifold on another end.

Description

Water cooling device and its collector

The present disclosure relates to a water cooling device and a current collector thereof.

In recent years, the memory demand of server devices has continued to grow, and the number of memory modules provided on the motherboard has also increased accordingly. When using water cooling to dissipate heat from memory modules, due to the different distances between the water inlets of each memory module and the water cooling device, the amount of water that flows through each memory module for heat exchange with it is also different. There is a temperature difference between the groups. Generally speaking, the memory module that is farther from the water inlet of the water cooling device has a higher temperature due to the relatively poor cooling efficiency.

In view of this, one objective of the present disclosure is to provide a water cooling device capable of uniformly cooling a memory module.

To achieve the above objective, according to some examples of the present disclosure, a water cooling device includes a first header, a second header, and a plurality of first fluid pipes. The first current collector includes a receiving cavity and a plurality of rectifying cavities. The receiving chamber has an inlet for receiving the working fluid. Each rectifying cavity includes a first wall portion and a second wall portion, and the second wall portion is opposite to the first wall portion. The first wall portion has an opening to be connected with the receiving cavity, and the second wall portion has an outlet. One end of the first fluid pipe is respectively connected to the outlet of the rectifying cavity, and the other end of the first fluid pipe is connected to the second collector.

In one or more examples of the present disclosure, the size of the opening of the rectifying cavity is positively related to its distance from the entrance of the receiving cavity.

In one or more examples of the present disclosure, at least one of the rectification chambers further includes a protruding tube, and the protruding tube protrudes from the first wall portion toward the second wall portion.

In one or more examples of the present disclosure, when convex tubes are formed in at least two rectification chambers, the convex tubes have different diameters, cross-sectional areas, lengths or inner tube wall roughnesses.

In one or more examples of the present disclosure, the receiving cavity is formed with at least one rectifying channel. The rectifying channel has a first end portion and at least one second end portion, the first end portion faces the inlet of the receiving cavity, and the second end portion faces the opening of one of the rectifying chambers.

In one or more examples of the present disclosure, the rectifying channel is deep into a wall of the receiving cavity.

In one or more examples of the present disclosure, the number of rectification channels is two or more, and the size of the rectification channels is positively related to the distance between the corresponding opening and the entrance of the receiving cavity; or, the cross-sectional area of the rectification channel It increases with the distance from the entrance of the receiving cavity; or, the number of the second ends is two or more, and the size of the second end is positively related to the distance of the corresponding opening from the entrance of the receiving cavity.

In one or more examples of the present disclosure, the water cooling device further includes a third current collector and a plurality of second fluid pipes. The first current collector, the second current collector and the third current collector are sequentially arranged along one direction. The second fluid pipe is used for connecting the second collector and the third collector.

In one or more examples of the present disclosure, the second current collector has a plurality of first through holes and a plurality of second through holes. The first through holes are correspondingly connected to the first fluid pipes, and the second through holes are correspondingly connected to the second fluid pipes.

In one or more examples of the present disclosure, there are one or more partitions between two opposite inner walls of the second current collector, and two adjacent partitions or any inner wall and its adjacent partitions The area between covers at least one first through hole and at least one second through hole.

According to some examples of the present disclosure, a current collector includes a receiving cavity and a plurality of rectifying cavities. The receiving chamber has an inlet for receiving the working fluid. Each rectifying cavity includes a first wall portion and a second wall portion, and the second wall portion is opposite to the first wall portion. The first wall portion has an opening to be connected with the receiving cavity, and the second wall portion has an outlet.

According to some examples of the present disclosure, a current collector includes a housing having an inlet, a plurality of outlets, and a wall. The inlet is used to receive the working fluid. The wall has at least one rectification channel, the rectification channel has a first end and at least a second end, the first end faces the inlet, and the second end faces one of the outlets.

In one or more examples of the present disclosure, the fairing channel is deep into the wall.

In one or more examples of the present disclosure, the number of rectification channels is two or more, and the size of the rectification channels is positively related to the distance between the corresponding outlet and the inlet; The number of the second end portion is more than two, and the size of the second end portion is positively related to the distance between the corresponding outlet and the inlet.

To sum up, the current collector of the present disclosure utilizes the structure of the rectifying cavity or the rectifying channel to distribute the received working fluid to the outlet, thereby uniformizing the fluid flow through each fluid tube.

For a more detailed and complete description of the present disclosure, reference may be made to the accompanying drawings and the various examples described below. Elements in the figures are not drawn to scale and are provided merely to illustrate the present disclosure. Numerous practical details are described below in order to provide a thorough understanding of the present disclosure, however, one of ordinary skill in the relevant art will understand that the present disclosure may be practiced without one or more of the practical details and, therefore, these details do not applied to define the present disclosure.

In this patent, "A and B are positively correlated" means that when A becomes larger, B also becomes larger; when A becomes smaller, B also becomes smaller.

Please refer to Figure 1 and Figure 2. FIG. 1 is a three-dimensional exploded view illustrating a water cooling device 100 according to an example of the present disclosure, and FIG. 2 is a partial enlarged cross-sectional view of the water cooling device 100 shown in FIG. 1 along a line segment 1-1'. The water cooling device 100 is used for guiding the working fluid (eg, water) to exchange heat with the memory module 10 (not shown in FIG. 1 ), so as to cool the memory module 10 . The water cooling device 100 includes a first collector 110, a second collector 120 and a plurality of first fluid pipes 130 that are in fluid communication with each other. The first fluid pipes 130 are separated from each other and connected to the first collector 110 and the second collector. Between the flow devices 120 , the side surface of the first fluid pipe 130 is used for thermal contact with the memory module 10 . In some examples, the first fluid tube 130 is a flat tube. In some examples, the first fluid tube 130 comprises metal or other suitable thermally conductive material.

The first collector 110 includes a casing 111 and a cover 112 . The casing 111 is used to accommodate the working fluid, and the cover 112 covers the casing 111 . The housing 111 includes a receiving cavity 113 and a plurality of rectification cavities 114 . The receiving cavity 113 has an inlet 113 a for receiving the working fluid, and the working fluid system enters the water cooling device 100 through the inlet 113 a. The rectifying cavity 114 is arranged on one side of the receiving cavity 113, and the rectifying cavity 114 is connected to the receiving cavity 113, and is used for distributing the working fluid to the corresponding outlet 115 of each rectifying cavity 114, and making the flow rate or flow velocity out of each outlet 115 approximately equal.

Specifically, each rectifying cavity 114 includes a first wall portion 114x and a second wall portion 114y, the second wall portion 114y is opposite to the first wall portion 114x, the first wall portion 114x has an opening 116, and the opening 116 and the receiving cavity 113 is connected, and the second wall portion 114y has an outlet 115.

For example, the inlet 113a and the outlet 115 are located on the first side wall 111a and the second side wall 111b of the housing 111, respectively, and the distances between each outlet 115 and the inlet 113a are different. In addition, a connecting pipe 190 may be additionally formed outside the inlet 113a of the first collector 110 , and the first collector 110 can be connected to an external circulation system (not shown) through the connecting pipe 190 .

One end of the first fluid pipe 130 is respectively connected to the outlet 115 of the rectification cavity 114 , and the other end is connected to the second collector 120 to guide the working fluid from the first collector 110 to the second collector 120 .

The size or form of each rectifying cavity 114 or its openings 116 is not exactly the same, so that the fluid flow or flow velocity of the working fluid when passing through each outlet 115 can achieve a substantially consistent result, thereby allowing each first fluid pipe of the water cooling device 100 130 has approximately the same antithermal efficiency. In this way, the water cooling device 100 can provide substantially the same cooling efficiency of each memory module 10 .

The size of the opening 116 of the rectifying cavity 114 is preferably positively related to its distance from the inlet 113a of the receiving cavity 113 . 116 width, height or cross-sectional area) will increase accordingly. In an example, the first current collector 110 includes a first rectification cavity 114a and a second rectification cavity 114b, the first rectification cavity 114a and the second rectification cavity 114b have a first opening 116a and a second opening 116b, respectively. The distance between the opening 116a and the inlet 113a is smaller than the distance between the second opening 116b and the inlet 113a, and the cross-sectional area A1 of the first opening 116a is smaller than the cross-sectional area A2 of the second opening 116b.

In addition, a convex tube 117 may be formed in at least one rectifying cavity 114 according to actual needs. The opening 116 serves as the entrance of the protruding pipe 117 and protrudes from the first wall portion 114x toward the second wall portion 114y. When the convex tubes 117 are formed in the at least two rectification chambers 114, the at least two convex tubes 117 have different diameters, cross-sectional areas, lengths or inner tube wall roughnesses. As the distance between the protruding tube 117 and the inlet 113a increases, the diameter of the protruding tube 117 increases, the cross-sectional area increases, the length decreases, or the inner tube wall roughness decreases. In some examples, two or more design parameters of the convex pipe (eg, cross-sectional area, diameter, length, inner pipe wall roughness, etc.) of the convex pipe can be changed at the same time.

Taking an example as an example, when the first rectification cavity 114a and the second rectification cavity 114b have the first convex pipe 117a and the second convex pipe 117b respectively, the distance between the first convex pipe 117a and the inlet 113a is smaller than that between the second convex pipe 117b and the second convex pipe 117b. The distance from the inlet 113a, the pipe diameter D1 of the first convex pipe 117a is smaller than the pipe diameter D2 of the second convex pipe 117b.

In addition to the above design, the first current collector 110 may be further formed with a plurality of partitions 118 , and the partitions 118 extend from the first wall portion 114x of the rectifying cavity 114 toward a direction away from the second wall portion 114y . The area between two adjacent partitions 118, or the area between the partitions 118 and the inner wall of the receiving cavity 113, each covers at least one opening 116, and the arrangement density of the partitions 118 preferably increases with the distance from the inlet 113a Increase and decrease to uniformize the flow in the aforementioned zones. In a specific example, the first current collector 110 includes a first separator 118a, a second separator 118b and a third separator 118c arranged in sequence away from the inlet 113a, and the first separator 118a and the second separator 118b The distance B1 between them is smaller than the distance B2 between the second partition plate 118b and the third partition plate 118c.

In addition, if necessary, the water cooling device 100 may include a third collector 180 and a plurality of second fluid pipes 132, the first collector 110, the first fluid pipe 130, the second collector 120, the second fluid pipe 132 and the third current collector 180 are sequentially arranged along the direction X. The second fluid pipes 132 are separated from each other and are used for connecting the second collector 120 and the third collector 180 , and the third collector 180 has an outlet 181 for discharging the working fluid. Under the above configuration, the water cooling device 100 can be used to cool the separately arranged memory modules.

The inlet 113a and the outlet 181 of the water cooling device 100 may be arranged diagonally, on the same side or on the opposite side. An additional connecting pipe 190 may also be formed outside the outlet 181 , and the water cooling device 100 may form a circulation loop through the two connecting pipes 190 .

When the outlet 181 is not provided in the second collector 120, the second collector 120 has a plurality of first through holes 121 and a plurality of second through holes 122, and the first through holes 121 and the second through holes 122 are respectively located at The opposite side walls 123 and 124 of the second current collector 120 . The first through holes 121 are correspondingly connected to the first fluid pipes 130 , and the second through holes 122 are correspondingly connected to the second fluid pipes 132 .

If necessary, the second current collector 120 can additionally form one or more partitions 125 , each partition 125 is located between the two inner walls 126 and 127 opposite to the second collector 120 and connected to the side wall 123 , 124. The partition plate 125 isolates a plurality of areas in the second current collector 120, the area between two adjacent partition plates 125, or the area between any of the inner walls 126, 127 and the adjacent partition plate 125, covers at least A first through hole 121 and at least one second through hole 122 . In the example shown, each chamber has a single first through hole 121 and a single second through hole 122 .

Please refer to Figure 3 and Figure 4. FIG. 3 is a partial enlarged top perspective view of a water cooling device according to another example of the present disclosure, and FIG. 4 is a schematic cross-sectional view of the water cooling device shown in FIG. 3 along line 5-5'. Different from the method of using the rectifying cavity to distribute the working fluid in the foregoing example, in the present example, the first collector 610 has at least one rectifying channel 614 to distribute the working fluid to the plurality of outlets 615 . Specifically, the housing 611 of the first collector 610 has a first side wall 611a, a second side wall 611b different from the first side wall 611a, and a wall portion 611x connecting the first side wall 611a and the second side wall 611b. The side wall 611a has an inlet 613a, the second side wall 611b has an outlet 615, and the wall portion 611x has a rectifying channel 614. Each rectifying channel 614 has a first end 614u and at least one second end 614v. The first end 614u faces the inlet 613a and the second end 614v faces one of the outlets 615 .

In some examples, the wall portion 611x is located at the bottom of the housing 611 , in other words, the wall portion 611x is the bottom wall of the housing 611 . In some examples, the fairing channel 614 penetrates deep into the wall portion 611x, in other words, the sidewall 614w of the fairing channel 614 is recessed from the surface of the wall portion 611x. In other examples, the sidewalls of the fairing channel may instead protrude from the surface of the wall portion 611x to define the fairing channel.

The rectification channels 614 have different flow resistances. Specifically, the flow resistance of the rectification channels 614 increases as the distance between the corresponding outlet 615 and the inlet 613a increases. Therefore, the inlet 613a enters the first current collector. The working fluid of the device 610 can be uniformly distributed to each outlet 615, and the amount of fluid passing through each first fluid pipe 130 is correspondingly uniformized.

In addition, when the number of the rectification channels 614 is more than two, the size of the rectification channels 614 is positively related to the distance between the corresponding outlet 615 and the inlet 613a. In other words, as the distance between the outlet 615 and the inlet 613a increases, the outlet 615 The size of the corresponding rectification channel 614 (eg, the width, height or cross-sectional area of the rectification channel 614 ) increases. For example, the first current collector 610 includes a first outlet 615a, a second outlet 615b, a first rectification channel 614a and a second rectification channel 614b, and the first rectification channel 614a extends between the inlet 613a and the first outlet 615a, The second rectification channel 614b extends between the inlet 613a and the second outlet 615b, the distance between the first outlet 615a and the inlet 613a is smaller than the distance between the second outlet 615b and the inlet 613a, and the width E1 of the first rectification channel 614a is It is smaller than the width E2 of the second rectifying channel 614b.

In addition, the top wall of the housing 611 is a wall portion 611y, and its position is opposite to the wall portion 611x. The wall portion 611y may also be formed with at least one rectification channel 614z, and the rectification channel 614z extends between the inlet 613a and the corresponding outlet 615. between. The rectification channel 614 and the rectification channel 614z may exist at the same time, or alternatively may exist.

Please refer to FIG. 5 , which is a partially enlarged top perspective view illustrating a water cooling device according to another example of the present disclosure. In this example, the cross-sectional area of the rectification channel 714 of the first current collector 710 increases as it moves away from the inlet 613a. Specifically, the cross-sectional area C1 of the first end 714u of the rectification channel 714 (towards the inlet 613a ) is smaller than the sectional area C2 of the second end 714v of the rectification channel 714 (towards one of the outlets 615 ). The cross-sectional area of the rectifying channel 714 preferably gradually increases as it moves away from the inlet 613a.

Please refer to FIG. 6 , which is a partially enlarged top perspective view illustrating a water cooling device according to another example of the present disclosure. In this example, the rectifying channel 814 of the first current collector 810 has more than two second ends 814v (two are taken as an example in the figure), and the size of the second ends 814v is spaced from the corresponding outlet 615 . The distance of the inlet 613a is positively correlated, in other words, as the distance between the outlet 615 and the inlet 613a increases, the size of the second end 814v corresponding to the outlet 615 (including the width, height or cross-sectional area of the second end 814v) increases. Specifically, the first collector 810 includes a first outlet 615a and a second outlet 615b, and the second ends 814v1 and 814v2 of the rectifying channel 814 face the first outlet 615a and the second outlet 615b, respectively. Since the distance between the first outlet 615a and the inlet 613a is smaller than the distance between the second outlet 615b and the inlet 613a, the cross-sectional area F1 of the second end portion 814v1 is smaller than the cross-sectional area F2 of the second end portion 814v2.

Please refer to FIG. 7 , which is a partial enlarged cross-sectional view of a water cooling device according to another example of the present disclosure. The difference between this example and the example shown in FIG. 2 is that the inlet 913a and the outlet 115 of the first collector 910 are respectively disposed on the side walls 911c and 911b facing each other. In addition, compared with the example shown in FIG. 2, in this example, the receiving cavity 913 is further formed with at least one rectification channel 914, and the rectification channel 914 has a first end portion 914u and at least a second end portion 914v, The first end portion 914u faces the inlet 913a of the receiving cavity 913 , and the second end portion 914v faces the opening 116 of one of the rectifying chambers 114 .

The rectifying channel 914 preferably penetrates into the wall portion 913x of the receiving cavity 913 (eg, the top wall or the bottom wall of the receiving cavity 913). In addition, the receiving cavity 913 may also have a plurality of rectification channels 914 , and the size of the rectification channels 914 is positively related to the distance between the corresponding opening 116 and the inlet 913 a of the receiving cavity 913 . For example, when the distance corresponding to the opening of a section of the rectification channel from the inlet 913a is greater than the distance of the opening corresponding to the other section of the rectification channel from the inlet 913a, the size of this section of the rectification channel is larger than the size of the other section of the rectification channel 914.

In addition, the form of the rectification channel of the receiving cavity may be similar to the rectification channel 714 shown in FIG. 5 or the rectification channel 814 shown in FIG. 6 . In some examples, the cross-sectional area of the rectifying channel of the receiving cavity may also increase as it moves away from the inlet 913a of the receiving cavity. In some examples, the rectifying channel has more than two second ends, and the size of the second ends is positively related to the distance of the corresponding opening 116 from the inlet 913a of the receiving cavity. In other words, the greater the aforementioned distance, the greater the size of the second end portion.

Please refer to FIG. 8 , which is a perspective exploded view illustrating a water cooling device 400 according to another example of the present disclosure. In this example, the first collector 410 further includes a return chamber 440 with a partition 441 between the return chamber 440 and the receiving chamber 113 , and the return chamber 440 has an outlet 442 through which the working fluid leaves the first collector. 410. Two ends of the first fluid pipe 430a are connected to the rectification chamber 114 and the second collector 420 respectively, and two ends of the first fluid pipe 430b are respectively connected to the second collector 420 and the return chamber 440 .

In the above configuration, the working fluid passes through the water cooling device 400 substantially along a U-shaped flow path. Specifically, the working fluid first enters the receiving chamber 113 through the inlet 113a, is distributed into the first fluid pipe 430a through the rectification chamber 114, enters the second collector 420 after passing through the first fluid pipe 430a, and then enters through the first fluid pipe 430b The backflow chamber 440 returns to the first collector 410 , and finally leaves the water cooling device 400 through the outlet 442 .

To sum up, the current collector of the present disclosure utilizes the structure of the rectifying cavity or the rectifying channel to distribute the received working fluid to the outlet, thereby uniformizing the fluid flow through each fluid tube.

Although the present disclosure has been disclosed above with examples, it is not intended to limit the present disclosure. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure is within the scope of this disclosure. The scope of the patent application attached herewith shall prevail.

10: Memory module 100,400: Water cooling device 110, 410, 610, 710, 810, 910: First collector 111,611: Shell 111a, 111b, 911b, 911c: Sidewalls 112: Cover 113,913: Receiver cavity 113a, 613a, 913a: Entrance 114, 114a, 114b: Rectifier cavity 114x: first wall 114y: second wall 115, 615, 615a, 615b: Export 116, 116a, 116b: Openings 117, 117a, 117b: convex tube 118, 118a, 118b, 118c: Separator 120,420: Second current collector 121: first through hole 122: second through hole 123, 124: Sidewalls 125: Partition 126, 127: inner wall 130, 430a, 430b: first fluid tube 132: Second fluid tube 180: The third collector 181: Export 190: Connecting Tube 440: Reflux chamber 441: Separator 442: Exit 611a, 611b: Sidewalls 611x, 611y, 913x: Walls 614, 614a, 614b, 614z, 714, 814, 914: Rectifier Channels 614u, 714u, 914u: first end 614v, 714v, 814v, 814v1, 814v2, 914v: second end 614w: Sidewall A1,A2,C1,C2,F1,F2: Cross-sectional area B1,B2: Distance D1, D2: pipe diameter E1, E2: width X: direction

In order to make the above and other objects, features, advantages and examples of the present disclosure more clearly understood, the accompanying drawings are described as follows: FIG. 1 is a perspective exploded view illustrating a water cooling device according to an example of the present disclosure. Fig. 2 is a partial enlarged cross-sectional view of the water cooling device shown in Fig. 1 along line 1-1'. FIG. 3 is a partially enlarged top perspective view illustrating a water cooling device according to another example of the present disclosure. Fig. 4 is a schematic cross-sectional view of the water cooling device shown in Fig. 3 along the line 5-5'. FIG. 5 is a partially enlarged top perspective view illustrating a water cooling device according to another example of the present disclosure. FIG. 6 is a partially enlarged top perspective view illustrating a water cooling device according to another example of the present disclosure. FIG. 7 is a partial enlarged cross-sectional view illustrating a water cooling device according to another example of the present disclosure. FIG. 8 is a three-dimensional exploded view illustrating a water cooling device according to another example of the present disclosure.

Domestic storage information (please note in the order of storage institution, date and number) without Foreign deposit information (please note in the order of deposit country, institution, date and number) without

10: Memory module

110: The first collector

111: Shell

111a, 111b: side walls

113: Receiving cavity

113a: Entrance

114, 114a, 114b: Rectifier cavity

114x: first wall

114y: second wall

115: Exit

116, 116a, 116b: Openings

117, 117a, 117b: convex tube

118, 118a, 118b, 118c: Separator

130: First fluid tube

190: Connecting Tube

A1, A2: Cross-sectional area

B1,B2: Distance

D1, D2: pipe diameter

Claims (20)

A water cooling device, comprising: a first current collector, comprising: a casing; a receiving cavity formed in the casing and having an inlet for receiving a working fluid; and a plurality of rectifying cavities forming In the casing, each of the rectifying chambers includes a first wall portion and a second wall portion, and the second wall portion is opposite to the first wall portion, wherein the first wall portion has an opening and The opening is connected to the receiving cavity, the second wall has an outlet; a second collector; and a plurality of first fluid pipes, one end of which is respectively connected to the outlets of the rectifying chambers, and the other end is connected to the first fluid pipe. Two current collectors. The water cooling device of claim 1, wherein the size of the opening is positively related to the distance from the inlet of the receiving cavity. The water cooling device of claim 1, wherein at least some of the rectification chambers further include a convex tube, the convex tube protruding from the first wall portion toward the second wall portion. The water cooling device as claimed in claim 3, wherein when the convex tubes are formed in at least two of the rectification chambers, at least two of the convex tubes have different pipe diameters, cross-sectional areas, lengths or inner pipe wall roughness Spend. The water cooling device of claim 1, wherein the receiving cavity is formed with at least one rectifying channel, the rectifying channel has a first end portion and at least a second end portion, and the first end portion faces the portion of the receiving cavity. an inlet, the second end faces one of the openings of the rectifying chambers. The water cooling device of claim 5, wherein the rectifying channel is deep into a wall of the receiving cavity. The water cooling device according to claim 5, wherein: the number of the at least one rectification channel is two or more, and the size of the rectification channel is positively correlated with the distance between the corresponding opening and the inlet of the receiving cavity; the The cross-sectional area of the rectifying channel increases as it moves away from the inlet of the receiving cavity; or the number of the at least one second end is two or more, and the size of the second end and the corresponding opening are away from the receiving cavity The distance of the entrance is positively correlated. The water cooling device of claim 1, further comprising: a third collector, wherein the first collector, the second collector and the third collector are sequentially arranged along a direction; and A plurality of second fluid pipes are used to communicate the second collector and the third collector. The water cooling device of claim 8, wherein the second collector has a plurality of first through holes and a plurality of second through holes, the first through holes are correspondingly connected to the first fluid pipes and the first through holes The two through holes are correspondingly connected to the second fluid pipes. The water cooling device as claimed in claim 9, wherein there are one or more partitions between two opposite inner walls of the second collector, and two adjacent partitions or any inner wall and the adjacent partition The area between the boards covers at least one of the first through holes and at least one of the second through holes. A current collector, comprising: a casing; a receiving cavity formed in the casing and having an inlet for receiving a working fluid; and a plurality of rectifying cavities formed in the casing, each of which Some of the rectifying chambers include a first wall portion and a second wall portion, and the second wall portion is opposite to the first wall portion, wherein the first wall portion has an opening and the opening is connected with the receiving chamber, The second wall has an outlet. The current collector of claim 11, wherein the size of the opening is positively related to its distance from the inlet of the receiving cavity. The current collector of claim 11, wherein at least one The rectifying chambers further include a protruding tube, the protruding tube protrudes from the first wall portion toward the second wall portion. The collector according to claim 13, wherein when the convex tubes are formed in at least two of the rectification chambers, at least two of the convex tubes have different pipe diameters, cross-sectional areas, lengths or inner pipe walls roughness. The current collector of claim 11, wherein the receiving cavity is formed with at least one rectifying channel, the rectifying channel has a first end portion and at least a second end portion, and the first end portion faces the end of the receiving cavity. The inlet, the second end faces one of the openings of the rectifying chambers. The current collector of claim 15, wherein the fairing channel is deep into a wall of the receiving cavity. The current collector of claim 15, wherein: the number of the at least one rectification channel is two or more, and the size of the rectification channel is positively related to the distance between the corresponding opening and the inlet of the receiving cavity; The cross-sectional area of the rectifying channel increases as it moves away from the inlet of the receiving cavity; or the number of the at least one second end is two or more, and the size of the second end and the corresponding opening are far from the receiving cavity. The distance of this entrance of the cavity is positively correlated. A current collector, comprising: a casing with an inlet, a plurality of outlets and a wall, the inlet is used to receive a working fluid, the wall has at least one rectification channel, the rectification channel has a first end and at least one second end, the first end faces the inlet, and the second end faces one of the outlets. The current collector of claim 18, wherein the fairing channel is deep into the wall. The current collector as claimed in claim 18, wherein: the number of the rectification channels is two or more, the size of the rectification channel is positively related to the distance between the corresponding outlet and the inlet; the cross section of the rectification channel The area increases with distance from the inlet; or the number of the at least one second end is two or more, and the size of the second end is positively related to the distance from the outlet to the inlet.

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