Efficient thermal resistance control water cooling screen

Abstract

The utility model discloses an efficient thermal resistance control water-cooling screen which comprises a water-cooling screen body, a thermal insulation layer is positioned on one side of the water-cooling screen body, a heat exchange layer is positioned on the other side of the water-cooling screen body, and a clamping positioning structure is positioned at the position, connected with the thermal insulation layer and the heat exchange layer, in the water-cooling screen body. A water cooling water path is arranged on the heat exchange layer, a composite heat conduction structure is positioned in the water cooling screen body, and the clamping positioning structure comprises a first clamping frame, a second clamping frame, a first connecting piece, a convex piece, a second connecting piece and a concave piece. According to the high-efficiency thermal resistance control water-cooling screen disclosed by the utility model, through structural optimization and cooling mechanism optimization, the thermal resistance is effectively reduced, and the cooling efficiency is improved, so that the quality and the growth speed of monocrystalline silicon are improved, and the high-efficiency thermal resistance control water-cooling screen has higher thermal resistance control capability and more stable cooling effect; powerful support is provided for efficient preparation of the czochralski silicon.

Description

Technical Field

[0001] The utility model relates to the field of single crystal silicon material preparation, in particular to a high-efficiency thermal resistance controlled water cooling screen. Background Art

[0002] The high-efficiency thermal resistance controlled water-cooled screen is a device used to optimize thermal resistance and improve cooling efficiency in the process of preparing CZ-pulled single crystal silicon. With the continuous growth of global energy consumption, traditional energy resources are becoming increasingly scarce, while climate change and environmental problems are becoming increasingly serious. In this context, renewable energy has become the key direction of global energy transformation, and photovoltaic power generation, as an important part of it, has an expanding market demand. In recent years, with the continuous breakthroughs in photovoltaic crystal pulling technology, the efficiency of components has been continuously improved, while the production cost has been continuously reduced, which makes the economic efficiency of photovoltaic power generation more and more competitive. In the production process of CZ-pulled single crystal silicon, the water-cooled screen is a key component for controlling the temperature gradient of the silicon melt and increasing the crystal growth rate. With the continuous development of science and technology, people have higher and higher requirements for the manufacturing process of the high-efficiency thermal resistance controlled water-cooled screen.

[0003] The existing water-cooling screen has certain drawbacks when used. The traditional water-cooling screen design often has the problems of high thermal resistance and insufficient cooling efficiency, which makes it difficult to effectively dissipate the heat in the silicon melt, affecting the quality and growth rate of single crystal silicon. Therefore, designing a water-cooling screen with efficient thermal resistance control is crucial to improving the efficiency and quality of CZ single crystal silicon preparation. To this end, we propose a water-cooling screen with efficient thermal resistance control. Utility Model Content

[0004] Technical problems solved: In view of the shortcomings of the prior art, the utility model provides a high-efficiency thermal resistance controlled water-cooled screen, which effectively reduces thermal resistance and improves cooling efficiency through structural optimization and cooling mechanism optimization, thereby improving the quality and growth rate of single crystal silicon. It has higher thermal resistance control capability and more stable cooling effect, provides strong support for the efficient preparation of direct-pull single crystal silicon, and can effectively solve the problems in the background technology.

[0005] Technical solution: To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-efficiency thermal resistance controlled water-cooled screen, comprising a water-cooled screen body, a heat insulation layer is positioned on one side of the water-cooled screen body, a heat exchange layer is positioned on the other side of the water-cooled screen body, a snap-fit ​​positioning structure is positioned inside the water-cooled screen body to connect the heat insulation layer and the heat exchange layer, a water-cooling water channel is arranged on the heat exchange layer, and a composite heat conductive structure is positioned inside the water-cooled screen body.

[0006] Preferably, the snap-fit ​​positioning structure includes a first snap-fit ​​frame, a second snap-fit ​​frame, a first connecting member, a convex member, a second connecting member and a concave member, the first snap-fit ​​frame is located inside the heat insulation layer, the second snap-fit ​​frame is located inside the heat exchange layer, the first connecting member is located on the inner side of the first snap-fit ​​frame, the second connecting member is located on the inner side of the second snap-fit ​​frame, the convex member is located at the end of the first connecting member, and the concave member is located at the end of the second connecting member.

[0007] Preferably, the composite thermally conductive structure includes a first carbon nanosheet, a polymer thermally conductive sheet, a second graphene sheet, a second carbon nanosheet and a first graphene sheet, the first carbon nanosheet and the second carbon nanosheet are both located on the surface of the polymer thermally conductive sheet, the first graphene sheet is located on the surface of the first carbon nanosheet, and the second graphene sheet is located on the surface of the second carbon nanosheet.

[0008] Preferably, the first snap-fit ​​frame and the second snap-fit ​​frame are snap-fitted and positioned by a first connecting member and a second connecting member, and the first connecting member and the second connecting member are snap-fitted and positioned by a convex member and a concave member, and the first snap-fit ​​frame and the second snap-fit ​​frame position the heat insulation layer and the heat exchange layer.

[0009] Preferably, the first graphene sheet, the first carbon nanosheet, the polymer thermal conductive sheet, the second carbon nanosheet and the second graphene sheet are integrally formed by hot pressing.

[0010] Preferably, the heat insulation layer and the heat exchange layer are locked and positioned by a locking and positioning structure, and the water-cooling water channel takes away the heat from the surface of the heat exchange layer.

[0011] Beneficial effects: Compared with the prior art, the utility model provides a high-efficiency thermal resistance controlled water-cooled screen, which has the following beneficial effects: This high-efficiency thermal resistance controlled water-cooled screen effectively reduces thermal resistance and improves cooling efficiency through structural optimization and cooling mechanism optimization, thereby improving the quality and growth rate of single crystal silicon, and has higher thermal resistance control capability and more stable cooling effect, providing strong support for the efficient preparation of direct-pull single crystal silicon. The entire high-efficiency thermal resistance controlled water-cooled screen has a simple structure, is easy to operate, and has better effect than traditional methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The utility model is a schematic diagram of the overall structure of a high-efficiency thermal resistance controlled water cooling screen.

[0013] Figure 2 The utility model is a structural schematic diagram of a locking and positioning structure in a high-efficiency thermal resistance controlled water-cooling screen.

[0014] Figure 3 This is a structural schematic diagram of an enlarged view of point A in a high-efficiency thermal resistance controlled water-cooling screen of the utility model.

[0015] Figure 4 The utility model is a structural schematic diagram of a composite heat-conducting structure in a high-efficiency thermal resistance controlled water-cooling screen.

[0016] In the figure: 1. water-cooled screen body; 2. heat insulation layer; 3. heat exchange layer; 4. water-cooled water channel; 5. snap-fit ​​positioning structure; 6. first snap-fit ​​frame; 7. second snap-fit ​​frame; 8. first connecting piece; 9. convex piece; 10. second connecting piece; 11. concave piece; 12. composite heat-conducting structure; 13. first carbon nanosheet; 14. polymer heat-conducting sheet; 15. second graphene sheet; 16. second carbon nanosheet; 17. first graphene sheet. DETAILED DESCRIPTION

[0017] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-4As shown, a high-efficiency thermal resistance controlled water-cooled screen comprises a water-cooled screen body 1, a heat insulating layer 2 is positioned on one side of the water-cooled screen body 1, a heat exchange layer 3 is positioned on the other side of the water-cooled screen body 1, a snap-fit ​​positioning structure 5 is positioned at the position connecting the heat insulating layer 2 and the heat exchange layer 3 inside the water-cooled screen body 1, a water cooling water channel 4 is arranged on the heat exchange layer 3, and a composite heat conducting structure 12 is positioned inside the water-cooled screen body 1. Through structural optimization and cooling mechanism optimization, the thermal resistance is effectively reduced and the cooling efficiency is improved, thereby improving the quality and growth rate of single crystal silicon, having higher thermal resistance control capability and more stable cooling effect, and providing strong support for the efficient preparation of direct-pull single crystal silicon.

[0021] Furthermore, the snap-fit ​​positioning structure 5 includes a first snap-fit ​​frame 6, a second snap-fit ​​frame 7, a first connecting member 8, a convex member 9, a second connecting member 10 and a concave member 11. The first snap-fit ​​frame 6 is located inside the thermal insulation layer 2, the second snap-fit ​​frame 7 is located inside the heat exchange layer 3, the first connecting member 8 is located on the inner side of the first snap-fit ​​frame 6, the second connecting member 10 is located on the inner side of the second snap-fit ​​frame 7, the convex member 9 is located at the end of the first connecting member 8, and the concave member 11 is located at the end of the second connecting member 10.

[0022] Furthermore, the composite thermally conductive structure 12 includes a first carbon nanosheet 13, a polymer thermally conductive sheet 14, a second graphene sheet 15, a second carbon nanosheet 16 and a first graphene sheet 17. The first carbon nanosheet 13 and the second carbon nanosheet 16 are both located on the surface of the polymer thermally conductive sheet 14, the first graphene sheet 17 is located on the surface of the first carbon nanosheet 13, and the second graphene sheet 15 is located on the surface of the second carbon nanosheet 16.

[0023] Furthermore, the first snap-fit ​​frame 6 and the second snap-fit ​​frame 7 are snap-fitted and positioned by the first connecting member 8 and the second connecting member 10, and the first connecting member 8 and the second connecting member 10 are snap-fitted and positioned by the convex member 9 and the concave member 11, and the first snap-fit ​​frame 6 and the second snap-fit ​​frame 7 position the positions of the thermal insulation layer 2 and the heat exchange layer 3.

[0024] Furthermore, the first graphene sheet 17 , the first carbon nanosheet 13 , the polymer thermal conductive sheet 14 , the second carbon nanosheet 16 and the second graphene sheet 15 are integrally formed by hot pressing.

[0025] Furthermore, the heat insulation layer 2 and the heat exchange layer 3 are locked and positioned by the locking and positioning structure 5 , and the water cooling water channel 4 takes away the heat from the surface of the heat exchange layer 3 .

[0026] Working principle: The utility model includes a water-cooled screen body 1, an insulation layer 2, a heat exchange layer 3, a water-cooled water channel 4, a snap-fit ​​positioning structure 5, a first snap-fit ​​frame 6, a second snap-fit ​​frame 7, a first connecting piece 8, a convex piece 9, a second connecting piece 10, a concave piece 11, a composite heat-conducting structure 12, a first carbon nanosheet 13, a polymer heat-conducting sheet 14, a second graphene sheet 15, a second carbon nanosheet 16, and a first graphene sheet 17. Through structural optimization and cooling mechanism optimization, the thermal resistance is effectively reduced and the cooling efficiency is improved, thereby improving the quality and growth rate of single crystal silicon, having higher thermal resistance control capability and more stable cooling effect, and providing strong support for the efficient preparation of direct-pull single crystal silicon.

[0027] The water cooling screen is divided into two layers. The first layer is the heat exchange layer. The heat exchange layer is normally designed with water channels to take away the heat of the crystal rods through the water channels. The second layer is the insulation layer, which is filled with materials with low thermal conductivity to prevent heat from entering the cooling water channel through another heated surface.

[0028] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A high-efficiency thermal resistance controlled water-cooling screen, comprising a water-cooling screen body (1), characterized in that: A heat insulation layer (2) is positioned on one side of the water-cooled screen body (1), a heat exchange layer (3) is positioned on the other side of the water-cooled screen body (1), a snap-fit ​​positioning structure (5) is positioned at a position connecting the heat insulation layer (2) and the heat exchange layer (3) inside the water-cooled screen body (1), a water cooling water channel (4) is provided on the heat exchange layer (3), and a composite heat conductive structure (12) is positioned inside the water-cooled screen body (1).

2. According to claim 1, a high-efficiency thermal resistance controlled water cooling screen is characterized in that: The snap-fit ​​positioning structure (5) comprises a first snap-fit ​​frame (6), a second snap-fit ​​frame (7), a first connecting piece (8), a convex piece (9), a second connecting piece (10) and a concave piece (11); the first snap-fit ​​frame (6) is located inside the heat insulation layer (2); the second snap-fit ​​frame (7) is located inside the heat exchange layer (3); the first connecting piece (8) is located on the inner side of the first snap-fit ​​frame (6); the second connecting piece (10) is located on the inner side of the second snap-fit ​​frame (7); the convex piece (9) is located at the end of the first connecting piece (8); and the concave piece (11) is located at the end of the second connecting piece (10).

3. The high-efficiency thermal resistance controlled water cooling screen according to claim 1, characterized in that: The composite heat-conducting structure (12) comprises a first carbon nanosheet (13), a polymer heat-conducting sheet (14), a second graphene sheet (15), a second carbon nanosheet (16) and a first graphene sheet (17); the first carbon nanosheet (13) and the second carbon nanosheet (16) are both located on the surface of the polymer heat-conducting sheet (14); the first graphene sheet (17) is located on the surface of the first carbon nanosheet (13); and the second graphene sheet (15) is located on the surface of the second carbon nanosheet (16).

4. The high-efficiency thermal resistance controlled water cooling screen according to claim 2, characterized in that: The first snap-fit ​​frame (6) and the second snap-fit ​​frame (7) are snap-fitted and positioned via a first connecting member (8) and a second connecting member (10), and the first connecting member (8) and the second connecting member (10) are snap-fitted and positioned via a convex member (9) and a concave member (11), and the first snap-fit ​​frame (6) and the second snap-fit ​​frame (7) position the heat insulation layer (2) and the heat exchange layer (3).

5. The high-efficiency thermal resistance controlled water cooling screen according to claim 3, characterized in that: The first graphene sheet (17), the first carbon nanosheet (13), the polymer thermal conductive sheet (14), the second carbon nanosheet (16) and the second graphene sheet (15) are integrally formed by hot pressing.

6. The high-efficiency thermal resistance controlled water cooling screen according to claim 1, characterized in that: The heat insulation layer (2) and the heat exchange layer (3) are locked and positioned via a locking and positioning structure (5), and the water cooling water path (4) removes heat from the surface of the heat exchange layer (3).

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