A water-cooled heat shield

Abstract

The application relates to the technical field of crystal cooling, in particular to a water-cooled heat shield, which comprises a shell, the shell is divided into an outer shell and an inner shell, a water-cooling unit is located between the outer shell and the inner shell, the water-cooling unit comprises an input pipe assembly, the input pipe assembly comprises a second pipe body, the second pipe body is horizontally surrounded, and the two ends of the second pipe body extend to the same side or spaces for extending to the same side are left at the two ends of the second pipe body; a first pipe body is connected to the first end of the second pipe body; and a third pipe body is connected to the second end of the second pipe body; wherein the first pipe body and the third pipe body extend to the same side direction away from the second pipe body and are used for cooling water to enter and exit the second pipe body. The technical problem that the bottom layout of the water-cooling unit is not uniform enough is solved, and the technical effect that the bottom layout of the water-cooling unit is uniform is achieved.

Description

Technical Field

[0001] This application relates to the field of crystal cooling technology, and in particular to a water-cooled heatsink. Background Technology

[0002] Water-cooled heatsinks are used to cool down freshly drawn crystal rods during the crystal rod pulling process. The uniformity of the temperature gradient created by the water-cooled heatsink directly affects the quality of the crystal rods.

[0003] In existing technologies, the basic structure of a water-cooled heatsink consists of a water-cooling unit housed within a casing; the water-cooling unit comes in various styles, which can be found in the appendix. Figure 5 and attached Figure 6 Research has found that the temperature gradient created by the existing types of water-cooling units is not uniform enough, which can easily lead to uneven cooling when the crystal rod first enters the water-cooled heat shield, especially at the bottom of the water-cooling unit, where the water pipes are only arranged in a spiral pattern or only at a few points.

[0004] Therefore, the technical problem with the existing technology is that the bottom layout of the water-cooling unit is not uniform enough. Summary of the Invention

[0005] This application provides a water-cooled heatsink that solves the technical problem of uneven bottom layout of the water-cooling unit, achieving the technical effect of uniform bottom layout of the water-cooling unit.

[0006] This application provides a water-cooled thermal shield, which adopts the following technical solution:

[0007] A water-cooled heat shield includes: a housing, the housing being divided into an outer shell and an inner shell; a water-cooling unit located between the outer shell and the inner shell; the water-cooling unit includes: an input pipe assembly, the input pipe assembly including: a second pipe body, the second pipe body being horizontally circumferential, and both ends of the second pipe body extending to the same side or having space at both ends of the second pipe body extending to the same side; a first pipe body, the first pipe body connecting to a first end of the second pipe body; and a third pipe body, the third pipe body connecting to a second end of the second pipe body; wherein the first pipe body and the third pipe body extend in a direction away from the second pipe body on the same side for cooling water to enter and exit the second pipe body.

[0008] Preferably, the first tube, the second tube, and the third tube are formed by bending a single tube.

[0009] Preferably, the first tube and the third tube are arranged side by side.

[0010] Preferably, the first tube and the third tube are arranged in contact.

[0011] Preferably, the second tube includes a bottom surface, and all parts of the bottom surface are at the same height.

[0012] Preferably, the connection between the second tube, the first tube, and the third tube is an end connection, and the end connection is a hollow, arc-shaped bend.

[0013] Preferably, the two ends of the second tube are brought close together to form a gap area, and a filling block is provided in the gap area, and the filling block is in contact with the two ends.

[0014] Preferably, the input tube assembly is provided in multiple sets, and the multiple sets of input tube assemblies have similar styles, so that the multiple sets of input tube assemblies can be stacked in sequence along the axial direction around the second tube body.

[0015] Preferably, the multiple sets of input tube assemblies are in contact with each other.

[0016] Preferably, the water-cooling unit further includes: a coiled tube assembly, the first end of which is connected to the input tube assembly; and an output tube assembly, the output tube assembly being connected to the second end of the coiled tube assembly; wherein the coiled tube assembly is arranged to be coiled in a single or reciprocating manner according to the circumferential trajectory of the second tube body, and the coiled tube assembly fills the area between the input tube assembly and the output tube assembly.

[0017] The advantages of this application, which differ from the prior art, are:

[0018] When designing the inlet pipe assembly for cooling water, the second pipe body in the inlet pipe assembly is positioned at the bottom of the water-cooling unit. By horizontally circling the second pipe body, the temperature gradient control at the bottom of the water-cooling unit is strengthened. When the crystal rod enters the bottom of the water-cooling unit from bottom to top, the horizontally circling second pipe body can effectively and uniformly absorb heat. Since the cooling water in the second pipe body is in the state of just entering the water-cooling unit, the aforementioned uniform heat absorption effect is strong, which can quickly help the crystal create a uniform thermal field environment with a suitable temperature gradient. This solves the technical problem of insufficient uniformity in the bottom layout of the water-cooling unit and achieves the technical effect of uniform bottom layout of the water-cooling unit. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cross-sectional distribution of the shell and water-cooling unit in this application;

[0020] Figure 2 This is a schematic diagram of the isometric structure of the water-cooled heat shield in the hidden outer shell state in this application;

[0021] Figure 3This is a schematic diagram of the isometric structure of the input tube assembly in this application;

[0022] Figure 4 This is a schematic diagram of the main view structure of the input tube assembly in this application;

[0023] Figure 5 This is a schematic diagram of the water-cooling unit in the prior art;

[0024] Figure 6 This is a schematic diagram of another type of water-cooling unit in the prior art.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Shell; 11. Outer shell; 12. Inner shell; 200. Water cooling unit; 21. Input pipe assembly; 211. First pipe; 212. Second pipe; 2121. Bottom surface of the second pipe; 213. Third pipe; 214. End connection; 300. Filler block; a. Empty area. Detailed Implementation

[0027] The serial numbers assigned to components in this document, such as "first" and "second," are used solely to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used solely for the convenience of describing this application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] To better understand the above technical solutions, a detailed description of the technical solutions will be provided below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit the scope of this application.

[0030] This application provides a water-cooled heatsink, which is used to cool the freshly drawn crystal rod during the crystal rod pulling process. Whether the temperature gradient created by the water-cooled heatsink is uniform will directly affect the quality of the crystal rod.

[0031] refer to Figure 1 and Figure 2 The water-cooled heat shield includes a housing 100 and a water-cooling unit 200. The housing 100 is divided into an outer shell 11 and an inner shell 12, and the water-cooling unit 200 is located between the outer shell 11 and the inner shell 12. It can be understood that the water-cooling unit 200 is in contact with the outer shell 11 and the inner shell 12, and the heat received by the housing 100 is transferred to the cooling water of the water-cooling unit 200 through this contact, thereby achieving the purpose of heat absorption and cooling.

[0032] refer to Figure 3 The water-cooling unit 200 includes an input pipe assembly 21, which includes a first pipe body 211, a second pipe body 212, and a third pipe body 213. The second pipe body 212 is horizontally circumferential, and both ends of the second pipe body 212 extend to the same side, or both ends of the second pipe body 212 have space for extending to the same side. The first pipe body 211 is connected to the first end of the second pipe body 212, and the third pipe body 213 is connected to the second end of the second pipe body 212. The first pipe body 211 and the third pipe body 213 extend in the same direction away from the second pipe body 212 for cooling water to enter and exit the second pipe body 212.

[0033] It is understood that the first pipe 211 and the third pipe 213 at both ends of the second pipe 212 are used for the inlet and outlet of cooling water. The inlet and outlet functions of the first pipe 211 and the third pipe 213 can be interchanged. For example, the first pipe 211 is used to introduce cooling water, and the cooling water is output to the subsequent coiled pipe assembly by the third pipe 213 after passing through the second pipe 212.

[0034] Regarding the horizontal arrangement of the second tube 212, it should be noted that, compared to the arbitrary arrangement in existing technologies, the horizontal arrangement of the second tube 212 is an innovation of this case. By setting the second tube 212 to a horizontal state, the heat absorption of the entire water-cooled heat shield is uniform, which is conducive to building a stable and uniform thermal field in the single crystal furnace, ensuring that all surfaces of the crystal rod are cooled equally or substantially equally. In addition, the horizontal state of the second tube 212 is relative to the entire water-cooled heat shield. That is, after the water-cooled heat shield is stably installed, the second tube 212 is in a horizontal state. If the water-cooled heat shield is not correctly installed / placed, the horizontal setting of the second tube 212 is determined by observing whether the bottom plane of the second tube 212 is parallel to the bottom plane of the water-cooled heat shield. If the second tube 212 is parallel to the bottom plane of the water-cooled heat shield, then the second tube 212 is determined to be in a horizontal state.

[0035] refer to Figure 3 The two ends of the second tube 212 extend to the same side, or the two ends of the second tube 212 have space to extend to the same side, in order to smoothly connect the first tube 211 and the third tube 213. The aforementioned connection refers not only to the case of connection by external force, but also, for example, the two ends of the second tube 212 are connected to other tubes by welding. The aforementioned connection also means that when a tube is bent into multiple parts, the connection is used to describe the connection relationship between the various parts. The aforementioned connection includes the case where the first tube 211, the second tube 212, and the third tube 213 are formed by bending a single tube.

[0036] The first tube 211 and the third tube 213 are arranged side-by-side, and / or in contact with each other. The side-by-side arrangement of the first tube 211 and the third tube 213 allows for a regular space for the arrangement of the coiled tube assembly. The contact between the first tube 211 and the third tube 213 serves two purposes: first, it shortens the distance between them, allowing for a denser arrangement of cooling tubes throughout the water-cooling unit 200, improving cooling efficiency; second, it allows for heat transfer between the first tube 211 and the third tube 213, resulting in more uniform heat absorption and addressing the issue of high temperatures in the layout.

[0037] The second tube 212 includes a bottom surface 2121, and all parts of the bottom surface 2121 are at the same height. By limiting the height of the bottom surface 2121, the overall layout of the second tube 212 is defined. The equal-height layout ensures that the heat absorption and cooling of the second tube 212 occur at the same height, so as to form a stable temperature gradient in the vertical direction.

[0038] refer to Figure 4 The connection point between the second tube 212 and the first tube 211 and the third tube 213 is the end connection point 214, which is a hollow, arc-shaped bend. It is understood that the second tube 212 is designed to evenly absorb heat from the casing 100; therefore, the closer the two end connections 214 are, the larger the area covered by the second tube 212, and the better the uniform heat absorption effect. When a larger coverage area of ​​the second tube 212 is more advantageous, it is most advantageous for the first tube 211 and the third tube 213 to be perpendicular / substantially perpendicular to the second tube 212. Furthermore, for smooth connection between the second tube 212 and the other tubes, and for smooth flow of cooling water into and out of the second tube 212, it is preferable that the end connection point 214 is a hollow, arc-shaped bend. That is, the arc-shaped end connection ensures a large coverage area of ​​the second tube 212 and smooth flow of cooling water into and out of the second tube 212.

[0039] refer to Figure 4The two end connections 214 of the second tube 212 are brought close together to form a gap area. A filler block 300 is provided in the gap area, and the filler block 300 is in contact with the two end connections 214. When the end connections 214 are hollow and curved, the lower middle part of the two end connections 214 of the second tube 212 cannot be tightly attached, naturally forming the aforementioned gap area. Filling this gap area with the filler block 300 is beneficial for contact heat transfer. First, it makes the cooling of the bottom of the entire water-cooled heat shield more uniform. Second, it prevents the local high temperature at the bottom of the water-cooled heat shield from damaging the shell 100. Third, it limits the gap between the two end connections 214, thus limiting the state and position of the second tube 212.

[0040] Multiple sets of input tube assemblies 21 are provided, and the multiple sets of input tube assemblies 21 have similar styles, so that the multiple sets of input tube assemblies 21 can be stacked in sequence along the axial direction around the second tube body 212.

[0041] It should be noted that, to ensure the cooling water flow rate and ease of bending, multiple sets of input pipe assemblies 21 are provided. Each set of input pipe assemblies 21 uses a small pipe diameter, which facilitates bending and minimizes the turning radius at the bends. When multiple sets of input pipe assemblies 21 are stacked, the gap between the bends of adjacent sets is small. The similarity in style among the multiple sets of input pipe assemblies 21 refers to their similar shapes, ensuring that the contact surfaces of adjacent sets of input pipe assemblies 21 match perfectly or nearly perfectly when stacked. This similarity is due to the fact that the water-cooled heat shield itself is a trumpet shape, smaller at the bottom and larger at the top. Both the outer shell 11 and the inner shell 12 are cylindrical bodies that gradually expand outwards from bottom to top. Therefore, when multiple sets of input pipe assemblies 21 are stacked within the shell 100, the dimensions of the input pipe assemblies 21 need to be continuously enlarged, especially the inner diameter of the second pipe 212, so that the input pipe assembly 21 can fit snugly against the ever-expanding diameter of the inner shell 12. Furthermore, the multiple sets of input pipe assemblies 21 are in contact with each other. This is to improve heat transfer and avoid localized heat concentration.

[0042] The water-cooling unit 200 also includes a coiled tube assembly and an output tube assembly. The first end of the coiled tube assembly is connected to the input tube assembly 21; the output tube assembly is connected to the second end of the coiled tube assembly. The coiled tube assembly is arranged to be coiled or reciprocated according to the circumferential trajectory of the second tube body 212, and the coiled tube assembly fills the area between the input tube assembly 21 and the output tube assembly.

[0043] Understandably, cooling water enters through the inlet pipe assembly 21, flows through the coiled tube assembly, and exits through the outlet pipe assembly. The inlet pipe assembly 21 and the outlet pipe assembly occupy the upper two ends of the entire water-cooling unit 200 to connect to the outside. The bottom of the water-cooling unit 200 is the second tube body 212 of the inlet pipe assembly 21. The remaining area is filled by the coiled tube assembly. The specific coiling method of the coiled tube assembly is varied; it can be filled by first filling the vertical area and then advancing circumferentially (as shown in the attached diagram). Figure 2 Alternatively, it can be filled by first filling the circumferential area and then advancing vertically. In addition, it can also be filled diagonally.

[0044] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0045] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A water-cooled thermal shield, characterized in that, The water-cooled thermal shield includes: The housing (100) is divided into an outer shell (11) and an inner shell (12); A water-cooling unit (200) is located between the outer shell (11) and the inner shell (12); the water-cooling unit (200) includes: An input tube assembly (21) comprising: The second tube (212) is horizontally circumferential, and both ends of the second tube (212) extend to the same side, or both ends of the second tube (212) have space to extend to the same side. A first tube (211), the first tube (211) being connected to the first end of the second tube (212); and The third tube (213) is connected to the second end of the second tube (212); The first pipe (211) and the third pipe (213) extend in the same direction away from the second pipe (212) for cooling water to enter and exit the second pipe (212).

2. The water-cooled thermal shield according to claim 1, characterized in that, The first tube (211), the second tube (212) and the third tube (213) are formed by bending a tube.

3. The water-cooled thermal shield according to claim 1, characterized in that, The first tube (211) and the third tube (213) are arranged side by side.

4. The water-cooled thermal shield according to claim 1, characterized in that, The first tube (211) and the third tube (213) are in contact with each other.

5. The water-cooled thermal shield according to claim 1, characterized in that, The second tube (212) includes a bottom surface (2121) of the second tube, and all parts of the bottom surface (2121) of the second tube are at the same height.

6. The water-cooled thermal shield according to claim 1, characterized in that, The connection between the second tube (212), the first tube (211), and the third tube (213) is an end connection (214), which is a hollow, arc-shaped bend.

7. The water-cooled thermal shield according to claim 6, characterized in that, The two end connections (214) of the second tube (212) are brought close together to form a gap area, and a filling block (300) is provided in the gap area, and the filling block (300) is in contact with the two end connections (214).

8. The water-cooled thermal shield according to any one of claims 1-7, characterized in that, The input tube assembly (21) is provided in multiple sets, and the multiple sets of input tube assemblies (21) have similar styles, so that the multiple sets of input tube assemblies (21) are stacked in sequence along the axial direction around the second tube body (212).

9. The water-cooled thermal shield according to claim 8, characterized in that, The multiple sets of input tube assemblies (21) are in contact with each other.

10. The water-cooled thermal shield according to claim 1, characterized in that, The water-cooling unit (200) also includes: A coiled tube assembly, the first end of which is connected to the input tube assembly (21); An output tube assembly, wherein the output tube assembly is connected to the second end of the coiled tube assembly; The coiled tube assembly is arranged to be coiled or reciprocated along the circumferential trajectory of the second tube body (212), and the coiled tube assembly fills the area between the input tube assembly (21) and the output tube assembly.

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