Liquid cooling pipe and combined liquid cooling device thereof

Abstract

The invention discloses a liquid cooling pipe which comprises a tubular body, the cross section of the tubular body is in a water drop shape, the water drop shape is an arc-shaped hole formed by splicing a crossed circular arc shape and a semi-oval shape, the symmetry axis of the crossed circular arc shape and the long axis of the semi-oval shape are collinear, the crossed circular arc shape is formed by crossing circular arcs which are opposite in the radial direction, and the central angle of each circular arc is alpha, and the radial direction is vertical to the long shaft. The invention also discloses a combined liquid cooling device which comprises a first liquid cooling pipe group composed of a plurality of liquid cooling pipes of any one above and a second liquid cooling pipe group composed of a plurality of liquid cooling pipes of any one above. A plurality of liquid cooling pipes with special section shapes are arranged in a cooling pipeline, so that the phenomenon that cooling liquid generates turbulent flow on the back of a pipe body due to an existing circular pipe or an oval pipe is avoided, and the heat dissipation efficiency is improved. In addition, the cooling device composed of the liquid cooling pipe with the structure can also increase the contact area with the cooling liquid and reduce noise generated by collision between the cooling liquid and the outer wall of the liquid cooling pipe in the flowing process of the cooling liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling devices, and in particular to a liquid cooling pipe and a combined liquid cooling device thereof. Background Art

[0002] Water-cooled tube technology offers significant advantages in UV (ultraviolet light) curing applications, primarily in terms of heat dissipation performance, energy efficiency, and improved production efficiency. Heat dissipation performance: As a highly efficient heat dissipation method, the water cooling system in a water-cooled UVLED curing machine uses circulating water to effectively reduce the temperature of the UVLED light source, extending the life of the equipment and ensuring curing efficiency and quality. Compared to traditional air cooling methods, water-cooled UVLED curing consumes less energy, reduces cooling time and energy consumption, and lowers operating costs. Water-cooled UVLED curing machines offer powerful UV light output and stable light intensity, enabling rapid curing of various materials and significantly improving production efficiency.

[0003] However, most water-cooling tubes currently on the market are circular (with a circular cross-section) and elliptical. When facing different media, the existing shapes of water-cooling tubes will produce turbulence at their backs, resulting in low heat dissipation efficiency. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a liquid cooling pipe and a combined liquid cooling device thereof to solve the technical problem that turbulence in the existing liquid cooling pipe leads to reduced heat dissipation efficiency.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] In the first aspect, an embodiment of the present invention provides a liquid cooling tube, comprising: a tubular body, the cross-section of the tubular body is teardrop-shaped, the teardrop-shape is an arc-shaped hole formed by splicing a crossed circular arc and a semi-ellipse, the symmetry axis of the crossed circular arc is collinear with the major axis of the semi-ellipse, the crossed circular arc is formed by the intersection of arcs that are radially opposite to each other and have the same central angle of α, and the radial direction is perpendicular to the major axis.

[0007] The central angle α ranges from 15° to 45°.

[0008] Wherein, the central angle α is 30°.

[0009] The intersection of the semi-ellipse and the intersecting circular arc is where the minor axis of the ellipse where the semi-ellipse is located is tangent to the radial direction of the intersecting circular arc.

[0010] In a second aspect, an embodiment of the present invention further provides a liquid cooling tube, comprising: a tubular body, the cross-section of the tubular body being a double-pointed teardrop shape, the double-pointed teardrop shape being an arc-shaped hole formed by the intersection of circular arcs that are radially opposite to each other and have the same central angle β.

[0011] The central angle β ranges from 30° to 90°.

[0012] Wherein, the central angle β is 60°.

[0013] In a third aspect, an embodiment of the present invention further provides a combined liquid cooling device, comprising a first liquid cooling tube group composed of several liquid cooling tubes as described in any one of the above items, and a second liquid cooling tube group composed of several liquid cooling tubes as described in any one of the above items, the first liquid cooling tube group and the second liquid cooling tube group are each provided with several groups, the first liquid cooling tube group and the second liquid cooling tube group are both arranged in a cooling pipe, and the first liquid cooling tube group is arranged in front of the second liquid cooling tube group along the flow direction of the coolant.

[0014] Among them, the first liquid cooling tube group and the second liquid cooling tube group are both arranged perpendicular to the flow direction of the coolant flowing through the cooling pipe, and the liquid cooling tubes of the adjacent first liquid cooling tube group and the liquid cooling tubes of the second liquid cooling tube group are cross-distributed in the flow direction of the coolant.

[0015] The length direction of the tubular body is the same as the flow direction of the coolant flowing through the cooling pipe, and the tubular body located in the direction of the maximum turning angle of the cooling pipe adopts the double-pointed teardrop-shaped liquid cooling pipe.

[0016] The liquid cooling tubes of this embodiment, by installing several liquid cooling tubes with special cross-sectional shapes within the cooling channel, address the turbulence of the coolant at the back of the tube body caused by existing round or elliptical tubes, thereby improving heat dissipation efficiency. A cooling device composed of liquid cooling tubes with this structure can increase the contact area with the coolant and reduce the noise generated by the coolant colliding with the outer wall of the liquid cooling tube during flow. Compared with existing structures, this design achieves higher heat dissipation efficiency and lower noise.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a first embodiment of a liquid cooling tube according to an embodiment of the present invention.

[0019] Figure 2This is a schematic cross-sectional view of a first embodiment of a liquid cooling tube according to an embodiment of the present invention.

[0020] Figure 3 This is a structural schematic diagram of a second embodiment of the liquid cooling tube of an embodiment of the present invention.

[0021] Figure 4 This is a schematic cross-sectional view of a second embodiment of the liquid cooling tube of the present invention.

[0022] Figure 5 This is a schematic structural diagram of a first embodiment of a combined liquid cooling device according to an embodiment of the present invention.

[0023] Figure 6 This is a schematic structural diagram of a second embodiment of the combined liquid cooling device of the present invention.

[0024] Figure 7 This is a schematic structural diagram of a third embodiment of the combined liquid cooling device of the present invention.

[0025] Description of reference numerals:

[0026] Tubular body 10, cross arc shape 11, semi-ellipse 12, radial direction 13, short axis 15, symmetry axis 16, tubular body 20, arc 21 (22), radial direction 23, first liquid cooling tube group 100, second liquid cooling tube group 200. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. Throughout this specification, the schematic representations of these terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] Water-cooled tube technology offers significant advantages in UV (ultraviolet light) curing applications, primarily in terms of heat dissipation performance, energy efficiency, and improved production efficiency. Heat dissipation performance: As a highly efficient heat dissipation method, water cooling systems in water-cooled UVLED curing machines effectively reduce the temperature of the UVLED light source through circulating water cooling, extending the equipment's service life and ensuring curing efficiency and quality. Compared to traditional air cooling methods, water-cooled UVLED curing uses less energy, reduces cooling time and energy consumption, and lowers operating costs. Water-cooled UVLED curing machines offer powerful UV light output and stable light intensity, enabling rapid curing of various materials and significantly improving production efficiency. However, most water-cooled tubes currently on the market are circular or elliptical in shape. When exposed to different media, existing water-cooled tube shapes can produce turbulence, resulting in low heat dissipation efficiency. Furthermore, existing liquid cooling tubes have a large contact area with the coolant flow direction, generating high noise levels when impacted. Based on these requirements, this embodiment proposes a new type of liquid cooling tube.

[0035] See also Figures 1 to 2 This embodiment discloses a first implementation of a liquid cooling tube. In this first implementation, the liquid cooling tube includes: a tubular body 10, the cross-section of the tubular body 10 is teardrop-shaped, and the teardrop shape is an arc-shaped hole formed by splicing a cross-circular arc 11 and a semi-ellipse 12. The symmetry axis 16 of the cross-circular arc 11 is collinear with the major axis of the semi-ellipse 12. The cross-circular arc 11 is formed by the intersection of arcs that are opposite to each other along the radial direction 13 and have the same central angle α. The radial direction 13 is perpendicular to the major axis, and the major axis is also the symmetry axis 16. Therefore, the radial direction 13 is also perpendicular to the symmetry axis 16.

[0036] When the tubular body 10 of the liquid cooling tube is used for a cooling device, a flowing coolant, such as a coolant or a coolant gas, is passed into the tube cavity of the liquid cooling tube. The coolant located outside the tubular body 10 flows through the outside of the tubular body 10. The heat is transferred to the coolant in the tube cavity through the tube wall of the tubular body 10, thereby cooling the liquid flowing outside.

[0037] from Figure 2 As shown, since the liquid cooling tube is a teardrop-shaped tube, when the external liquid flows through the outer wall of the tubular body 10, its initial contact area is smaller and the flow resistance is smaller than that of the existing circular tube-shaped liquid cooling tube, and the back of the contact surface is pointed. Therefore, when the coolant flows to the back of the contact surface, the turbulence phenomenon will be greatly weakened, and even the turbulence phenomenon will disappear. Therefore, the coolant flow process maintains a uniform speed and the temperature of the coolant is more uniform. This shape of liquid cooling tube can not only improve the heat dissipation efficiency, but also reduce the noise during the working process to a certain extent. In particular, it is used in non-linear cooling pipe scenarios. It has a more obvious heat dissipation and noise reduction effect at the bends of non-linear cooling pipes.

[0038] In this embodiment, the central angle α ranges from 15° to 45°.

[0039] Preferably, the central angle α is 30°. It is understood that in other embodiments, the central angle α may be smaller or larger depending on the diameter of the cooling pipe. When the cooling pipe diameter is large, the central angle α may be larger, while when the cooling pipe diameter is small, the central angle α may be smaller, preferably keeping the intersecting arc 11 smaller than a circle of the same diameter.

[0040] in, Figure 2 The intersecting arc 11 in the figure includes two symmetrical arc parts, that is, the arc parts on the left and right sides are symmetrical about the symmetry axis 16. The arc on the left side is formed by rotating the arc with a set radius at the central angle α, while the arc part on the right side is formed by rotating the arc with the same radius but with the center symmetrical to the left arc about the origin in the radial direction 13. The two intersect on the symmetry axis 16. The origin is the Figure 2 The intersection point where the axis of symmetry 16 and the radial direction 13 intersect.

[0041] like Figure 2 As shown, the cross-section of the tubular body 10 in this first embodiment is characterized by an upper cross-arc 11 and a lower semi-elliptical 12. The upper and lower halves, when joined, form an arc-shaped shape with a flatter upper portion and a fuller lower portion. The lower half is laterally wider and serves as the contact surface with the coolant, reducing the initial fluid velocity. The upper half serves as the back of the contact surface, reducing turbulence and directing the coolant in the correct direction of flow, thereby preventing eddy currents from affecting heat dissipation.

[0042] Among them, the cross arc 11 and the semi-ellipse 12 are connected to form a tube wall with a relatively smooth contour. The connection length between the semi-ellipse 12 and the cross arc 11 is arbitrary. The semi-ellipse 12 here is not limited to half of a complete ellipse, but refers to any partial ellipse cut in a direction parallel to the short axis of the ellipse.

[0043] In this embodiment, the intersection of the semi-ellipse 12 and the intersecting circular arc 11 is the point where the minor axis 15 of the ellipse in which the semi-ellipse 12 is located is tangent to the radial direction 13 of the intersecting circular arc 11. That is, in this embodiment, the semi-ellipse 12 is exactly a half-ellipse portion cut through the minor axis of the ellipse.

[0044] See also Figure 3 and Figure 4The embodiment of the present invention also provides a second implementation of the liquid cooling tube, which includes: a tubular body 20, the cross-section of the tubular body 20 is a double-pointed teardrop shape, and the double-pointed teardrop shape is an arc-shaped hole formed by the intersection of arcs 21 and 22 that are opposite to each other along the radial direction 23 and have the same central angle β.

[0045] The difference between the second embodiment and the first embodiment is that the cross section of the liquid cooling tube in the second embodiment is completely composed of two mutually opposite circular intersections. Figure 4 As shown, the cross section of the tubular body 20 is a symmetrical structure in the radial direction 23 and the direction perpendicular to the radial direction.

[0046] The central angle β ranges from 30° to 90°.

[0047] Preferably, the central angle β is 60°. It is understood that in other embodiments, the central angle β may also be any other value, representing any surface between a circle and a plane. Similarly, when the cooling pipe diameter is large, the central angle β may be larger, while when the cooling pipe diameter is small, the central angle β may be smaller.

[0048] In this second embodiment, the liquid cooling tube has symmetrical structures of roughly equal width at both ends. Therefore, regardless of whether the top or bottom end contacts the coolant first, the coolant flow rate at both ends is essentially the same, and both ends serve to reduce turbulence, thereby improving heat dissipation. Due to the roughly identical curved surface characteristics at both ends, this second embodiment of the liquid cooling tube is more suitable for use in linear cooling pipes or the straight sections of non-linear cooling pipes. Of course, this second embodiment of the liquid cooling tube can also be used alone as a cooling structure within linear or non-linear cooling pipes.

[0049] Please refer again Figure 4 Arc 21 is a portion of the arc with its center located on the right and a central angle β. Arc 22 is a vertically symmetrical structure, being a portion of the arc symmetrical about the origin and located to the left of radial direction 23, also with a central angle β. Arcs 21 and 22 intersect in the vertical direction to form a closed, double-pointed droplet-like lumen cross-section. The vertical direction herein refers to the direction perpendicular to radial direction 23.

[0050] Please refer again Figures 5 to 7An embodiment of the present invention further provides a combined liquid cooling device, which includes a first liquid cooling tube group 100 composed of several liquid cooling tubes as described in the first embodiment above, and a second liquid cooling tube group 200 composed of several liquid cooling tubes as described in the second embodiment above. The first liquid cooling tube group 100 and the second liquid cooling tube group 200 are each provided with several groups. The first liquid cooling tube group 100 and the second liquid cooling tube group 200 are both arranged in the cooling pipe, and the first liquid cooling tube group 100 is arranged in front of the second liquid cooling tube group 200 along the flow direction of the coolant.

[0051] like Figure 5 As shown, both the first and second liquid-cooling tube groups 100 and 200 are disposed within the cooling duct 30. In this case, the cooling duct 30 is a linear tube. The first liquid-cooling tube group 100 comprises multiple liquid-cooling tubes arranged in a straight line, similar to the first embodiment. The first liquid-cooling tube group 100 first contacts the coolant, with the semi-elliptical tube wall 12 of the tubular body 10 first contacting the coolant, while the intersecting circular arc 11 is located behind the coolant flow direction. This is because the semi-elliptical tube wall 12 has a slightly larger contact surface, which can reduce the coolant's speed.

[0052] The length direction of the second liquid cooling tube group 200 arranged behind the first liquid cooling tube group 100 is arranged in the same direction as the length direction of the cooling pipe 30, that is, the length direction of the tubular body 20 of the second liquid cooling tube group 200 is arranged approximately perpendicular to the flow direction of the coolant.

[0053] The first liquid cooling tube group 100 and the second liquid cooling tube group 200 are both arranged perpendicular to the flow direction of the coolant flowing through the cooling pipe 30, and the liquid cooling tubes of the adjacent first liquid cooling tube group 100 and the liquid cooling tubes of the second liquid cooling tube group 200 are cross-distributed in the flow direction of the coolant. Figure 5 As shown, in the direction of the bottom arrow (i.e., the direction of coolant flow), the tubular body 10 of the liquid cooling tube of the first embodiment and the tubular body 20 of the liquid cooling tube of the second embodiment are cross-distributed so that the coolant is in full contact with each liquid cooling tube during the flow process.

[0054] Furthermore, the length direction of the tubular body 10 (or 20) is the same as the flow direction of the coolant flowing through the cooling pipe 30, and the tubular body 20 located in the maximum turning angle direction of the cooling pipe 30 adopts the double-pointed teardrop-shaped liquid cooling pipe.

[0055] For details, please refer to Figure 6In this case, the cooling pipe 30 is a right-angle pipe, with a second liquid cooling pipe group 200 positioned along the right-angle diagonal line 300. The first liquid cooling pipe group 100 is used in the coolant inlet direction, while the rest of the pipe group 200 is used. The lengthwise distribution of the second liquid cooling pipe group 200 in the rest of the pipe is roughly aligned with the coolant flow direction. The right-angle cooling pipe 30 has its maximum angle along the diagonal line 300.

[0056] like Figure 7 As shown, it is Figure 6 The difference between the structures shown is that the cooling pipe 30 is an arc-shaped curved pipe structure. In this embodiment, the distribution of the first liquid cooling pipe group 100 and the second liquid cooling pipe group 200 is the same as that of the embodiment shown in FIG. Figure 6 The directions are the same, and at the bends of the arc-shaped bends, the liquid cooling tubes are arranged in a radial manner with the same center.

[0057] The liquid cooling tubes of this embodiment, by installing several liquid cooling tubes with special cross-sectional shapes within the cooling channel, address the turbulence of the coolant at the back of the tube body caused by existing round or elliptical tubes, thereby improving heat dissipation efficiency. A cooling device composed of liquid cooling tubes of this structure also increases the contact area with the coolant, reducing the noise generated by the coolant colliding with the outer wall of the liquid cooling tube during flow. Compared with existing structures, this design achieves higher cooling and heat dissipation efficiency and lower noise.

[0058] The above examples are merely provided to further illustrate the technical content of the present invention for easier understanding by the reader, but do not limit the embodiments of the present invention to these examples. Any extension or re-creation of the technology based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. A liquid cooling tube, characterized in that: include: A tubular body, wherein the cross-section of the tubular body is in the shape of a teardrop, wherein the teardrop shape is an arc-shaped hole formed by splicing a crossed circular arc and a semi-ellipse, wherein the axis of symmetry of the crossed circular arc is colinear with the major axis of the semi-ellipse, wherein the crossed circular arc is formed by the intersection of circular arcs which are radially opposite to each other and have the same central angle of α, and wherein the radial direction is perpendicular to the major axis.

2. The liquid cooling tube according to claim 1, characterized in that: The central angle α ranges from 15 to 45 degrees.

3. The liquid cooling tube according to claim 1, characterized in that: The central angle α is 30°.

4. The liquid cooling tube according to claim 1, characterized in that: The intersection of the semi-ellipse and the intersecting circular arc is the point where the minor axis direction of the ellipse where the semi-ellipse is located is tangent to the radial direction of the intersecting circular arc.

5. A liquid cooling tube, characterized in that: include: The tubular body has a cross section in a double-pointed teardrop shape, and the double-pointed teardrop shape is an arc-shaped hole formed by the intersection of circular arcs that are opposite to each other in radial direction and have the same central angle β.

6. The liquid cooling tube according to claim 5, characterized in that: The central angle β ranges from 30° to 90°.

7. The liquid cooling tube according to claim 5, characterized in that: The central angle β is 60°.

8. A combined liquid cooling device, characterized in that: The combined liquid cooling device comprises a first liquid cooling tube group composed of a plurality of liquid cooling tubes as described in any one of claims 1 to 4, and a second liquid cooling tube group composed of a plurality of liquid cooling tubes as described in any one of claims 4 to 6, wherein the first liquid cooling tube group and the second liquid cooling tube group are each provided with a plurality of groups, and the first liquid cooling tube group and the second liquid cooling tube group are both arranged in a cooling pipe, and the first liquid cooling tube group is arranged in front of the second liquid cooling tube group along the flow direction of the coolant.

9. The combined liquid cooling device according to claim 8, characterized in that: The first liquid cooling tube group and the second liquid cooling tube group are both arranged perpendicular to the flow direction of the coolant flowing through the cooling pipe, and the liquid cooling tubes of the adjacent first liquid cooling tube group and the liquid cooling tubes of the second liquid cooling tube group are cross-distributed in the flow direction of the coolant.

10. The combined liquid cooling device according to claim 8, characterized in that: The length direction of the tubular body is the same as the flow direction of the coolant flowing through the cooling pipe, and the tubular body located in the direction of the maximum turning angle of the cooling pipe adopts the double-pointed water drop-shaped liquid cooling pipe.

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