Heating and cooling device for toughening ultrathin flexible glass

By using a heating and cooling device consisting of a cooling fan and an electric heater during the tempering process of ultra-thin flexible glass, precise temperature control was achieved, solving the problems of uneven local reaction and surface defects such as imprints in the chemical tempering process of ultra-thin glass, thus improving product yield and production stability.

CN223646473UActive Publication Date: 2025-12-09WUHU DONGXIN PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202422832649.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-12-09
Estimated Expiration
2034-11-20

AI Technical Summary

Technical Problem

In existing technologies, during the chemical tempering process of ultrathin glass, inaccurate temperature control leads to uneven local reactions and surface defects such as imprints, affecting product yield. Furthermore, uneven cooling rates result in stress-related performance defects, making it unsuitable for large-scale production.

Method used

A heating and cooling device for tempering ultrathin flexible glass was designed, which includes a glass placement chamber and a temperature control chamber. It is equipped with cooling and heating components. Precise temperature control is achieved through a cooling fan and an electric heater to ensure the uniformity of glass temperature and consistent cooling before and after tempering.

Benefits of technology

It effectively solves the problems of uneven temperature and poor local reaction during the tempering process of ultra-thin glass, improves product yield, reduces equipment cost, and ensures the process stability and applicability of the product for large-scale production.

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Abstract

The utility model belongs to the technical field of ultrathin flexible glass production, and relates to a heating and cooling device for toughening ultrathin flexible glass. Comprising a glass placing chamber (1), a temperature control chamber (2) is arranged close to the glass placing chamber (1), the glass placing chamber (1) is communicated with the temperature control chamber (2), a cooling component (3) and a heating component (4) are arranged in the temperature control chamber (1), and a placing frame (9) is arranged in the glass placing chamber (1). The heating and cooling device for the ultra-thin flexible glass tempering is simple in structure, can conveniently and reliably realize heating or cooling before and after the ultra-thin flexible glass tempering, effectively controls the problem of poor local reaction of a product, improves the product quality, has no worsening influence on the chemical tempering process of the ultra-thin glass, and improves the product quality. And large-scale production of products is ensured, and the stability of the product tempering process is ensured.
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Description

Technical Field

[0001] This utility model belongs to the field of ultra-thin flexible glass production technology, and more specifically, it relates to a heating and cooling device for tempering ultra-thin flexible glass. Background Technology

[0002] Currently, foldable screens utilize flexible materials or ultra-thin glass. Chemical tempering is an indispensable part of the strengthening process for flexible materials, and the preheating process before tempering and the cooling process after tempering are crucial. Therefore, the future development trend of foldable screens will be towards using ultra-thin glass as a flexible cover for module assembly and mass production. To improve the surface strength of current ultra-thin glass covers, potassium nitrate in a high-temperature molten state is often used for sodium-potassium ion replacement to achieve chemical tempering. However, due to the thinness of the ultra-thin glass during tempering, the molten potassium nitrate reacts with it on the glass surface. Since potassium nitrate has a melting point of 334℃, the reaction temperature is relatively high. Temperature control before and after tempering is critical. If the product temperature is too low before tempering, some potassium nitrate will solidify upon contact; if the temperature is too high, uneven reaction will occur in some areas upon contact. Similarly, the cooling rate of the molten potassium nitrate after tempering will affect the local reaction rate, leading to surface defects such as imprints and performance defects such as stress, thus affecting the product's tempering yield.

[0003] Existing technology includes a device entitled "A Cooling Device for a Glass Tempering Furnace," with publication number CN210620599U. This technology relates to the field of glass tempering furnace technology and discloses a cooling device for a glass tempering furnace, comprising a lower plate platform, a base, a heating section, a cooling device, an AC port, an upper plate platform, a fixing block, a connecting block, a support plate, a fan, locking screws, a fixing ring, a dustproof net, an air outlet pipe, nozzles, and a moisture-absorbing sheet. The lower plate platform is surrounded by a base, and the cooling device is fixedly connected to the top of the base. The heating section is mounted on the right side of the cooling device, and the upper plate platform is movably connected to the right side of the heating section. The top of the cooling device is fixedly connected to a fixing block, and a connecting block is fixedly connected to the outside of the fixing block. A support plate is fixedly connected to the inside of the connecting block. This glass tempering furnace cooling device achieves higher cooling efficiency. Combined with existing water pump cooling methods, it further improves cooling efficiency, resulting in faster cooling and better overall stability.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a heating and cooling device for ultra-thin flexible glass tempering that is simple in structure, can conveniently and reliably realize heating or cooling before and after ultra-thin glass tempering, effectively control the problem of poor local reaction of the product, improve product quality, and at the same time have no deteriorating effect on the chemical tempering process of ultra-thin glass, ensuring that it is suitable for large-scale production of the product and guaranteeing the process stability of product tempering.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model is a heating and cooling device for tempering ultra-thin flexible glass, including a glass placement chamber 1, a temperature control chamber 2 located near the glass placement chamber 1, the glass placement chamber 1 being connected to the temperature control chamber 2, a cooling component 3 and a heating component 4 being installed in the temperature control chamber 2, and a placement rack 9 being installed in the glass placement chamber 1.

[0008] The cooling component 3 is a cooling fan, and the heating component 4 is an electric heater.

[0009] A temperature sensor 5 is installed inside the glass placement chamber 1. The temperature sensor 5, the cooling component 3, and the heating component 4 are respectively connected to the control component.

[0010] A temperature control chamber 2 is provided on the upper part of the glass placement chamber 1.

[0011] The glass placement chamber 1 includes a chamber body and a chamber door 6.

[0012] The glass placement chamber 1 has a chamber door 6 installed at the front of the chamber body, and the temperature control chamber 2 is located above the chamber body. The temperature control chamber 2 and the chamber body are connected by a channel 7.

[0013] The placement rack 9 inside the glass placement chamber 1 includes multiple sets of upper clamping teeth and multiple sets of lower clamping teeth, which are arranged symmetrically in the upper and lower parts.

[0014] The cooling component 3 is located above the heating component 4.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The heating and cooling device for tempering ultra-thin flexible glass described in this utility model is structurally designed with a glass placement chamber 1 and a temperature control chamber 2. The glass placement chamber 1 holds the ultra-thin flexible glass 8 that requires heating or cooling, while the temperature control chamber 2 heats or cools the ultra-thin flexible glass 8. The glass placement chamber 1 and temperature control chamber 2 are connected. The temperature control chamber 2 contains a cooling component 3 and a heating component 4. When cooling is needed, the cooling component 3 is activated, and the cold air generated by the cooling component 3 enters the glass placement chamber 1 to cool the ultra-thin flexible glass 8. When heating is needed, the heating component 4 is activated, and the heat generated by the heating component 4 enters the glass placement chamber to heat the ultra-thin flexible glass. A placement rack 9 is installed in the glass placement chamber 1 to support the glass requiring heating or cooling, ensuring reliable support. Adjacent glass pieces are spaced apart, and multiple pieces of glass can be placed on one rack for easy insertion or removal. This invention effectively solves the problem of partial potassium nitrate solidification occurring upon contact when the product temperature is too low before tempering, and also effectively solves the problem of uneven reaction occurring in localized areas upon contact when the temperature is too high. Furthermore, it addresses the issue that the cooling rate of molten potassium nitrate after tempering can affect the localized reaction rate of the product. This effectively solves the problems of surface defects such as markings and performance defects such as stress, thus improving the yield of tempered products. The structure of this invention combines cooling and heating, reducing equipment costs and significantly minimizing adverse effects on the product's appearance during tempering. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0018] Figure 1 This is a schematic diagram of the heating and cooling device for tempering ultra-thin flexible glass according to the present invention.

[0019] Figure 2 This is a cross-sectional view of the heating and cooling device for tempering ultrathin flexible glass according to the present invention.

[0020] The labels in the attached diagram are as follows: 1. Glass placement chamber; 2. Temperature control chamber; 3. Cooling component; 4. Heating component; 5. Temperature sensor; 6. Chamber door; 7. Channel; 8. Ultra-thin flexible glass; 9. Placement rack. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0022] As attached Figure 1 -Appendix Figure 2 As shown, this utility model is a heating and cooling device for tempering ultra-thin flexible glass, including a glass placement chamber 1, a temperature control chamber 2 located near the glass placement chamber 1, the glass placement chamber 1 being connected to the temperature control chamber 2, a cooling component 3 and a heating component 4 being installed in the temperature control chamber 2, and a placement rack 9 being installed in the glass placement chamber 1. The above structure addresses the shortcomings of the prior art with an improved technical solution. In the structural design, the glass placement chamber 1 and the temperature control chamber 2 are fabricated separately. The glass placement chamber 1 is used to place the ultra-thin flexible glass 8 product that requires heating or cooling, and the temperature control chamber 2 is used to heat or cool the ultra-thin flexible glass 8. The glass placement chamber 1 and the temperature control chamber 2 are connected. The temperature control chamber 2 contains a cooling component 3 and a heating component 4. When cooling is required, the cooling component 3 is activated, and the cold air generated by it enters the glass placement chamber 1 to cool the ultra-thin flexible glass 8. When heating is required, the heating component 4 is activated, and the heat generated by it enters the glass placement chamber to heat the ultra-thin flexible glass. A placement rack 9 is installed within the glass placement chamber 1 to support the glass requiring heating or cooling, ensuring reliable support. Adjacent glass pieces are spaced apart, and multiple pieces can be placed on a single rack for easy insertion and removal. This invention effectively solves the problem of potassium nitrate solidification occurring at the moment of contact due to excessively low pre-tempering product temperature, and the problem of uneven reaction occurring at the moment of contact due to excessively high temperature. It also addresses the issue of the cooling rate of molten potassium nitrate affecting the local reaction rate after tempering. This effectively solves the problems of surface defects such as markings and performance defects such as stress, improving the yield of tempered products. The structure of this invention combines cooling and heating, reducing device costs and significantly minimizing the impact on product appearance during tempering. The heating and cooling device for ultra-thin flexible glass tempering described in this invention has a simple structure, enabling convenient and reliable heating or cooling before and after ultra-thin glass tempering. It effectively controls the problem of localized adverse reactions, improves product quality, and has no detrimental effect on the chemical tempering process of ultra-thin glass, ensuring its suitability for large-scale production and guaranteeing the stability of the tempering process.

[0023] The cooling component 3 is a cooling fan, and the heating component 4 is an electric heater. A temperature sensor 5 is installed inside the glass placement chamber 1. The temperature sensor 5, cooling component 3, and heating component 4 are respectively connected to a control component. In this structure, the cooling fan generates cold air for cooling, and the heating component generates heat for heating. The temperature sensor senses the real-time temperature, ensuring that both heating and cooling are controlled within the set range, thus ensuring temperature control accuracy.

[0024] A temperature control chamber 2 is provided at the upper part of the glass placement chamber 1. The glass placement chamber 1 includes a chamber body and a chamber door 6. With the above structure, the chamber door 6 can be easily opened or closed for inserting or removing the placement rack 9, and a sealing ring is provided on the inner ring of the chamber door 6.

[0025] The glass placement chamber 1 has a chamber door 6 installed at the front of its main body. The temperature control chamber 2 is located above the main body, and the temperature control chamber 2 and the main body are connected by a channel 7. In this structure, the upper part of the glass placement chamber 1 is open, and the lower part of the temperature control chamber 2 is open, forming a channel 7 for the transfer of cold air or heat.

[0026] The placement rack 9 within the glass placement chamber 1 includes multiple sets of upper locking teeth and multiple sets of lower locking teeth, arranged symmetrically vertically. In this structure, each set of upper locking teeth and its corresponding lower locking teeth is used to vertically limit the movement of a single piece of ultra-thin flexible glass.

[0027] The cooling component 3 is located above the heating component 4. In this structure, the heating component does not completely block the channel, allowing for reliable heat transfer and reliable cooling air transfer.

[0028] The heating and cooling device for tempering ultra-thin flexible glass described in this utility model is structurally designed with a glass placement chamber 1 and a temperature control chamber 2. The glass placement chamber 1 holds the ultra-thin flexible glass 8 that requires heating or cooling, while the temperature control chamber 2 heats or cools the ultra-thin flexible glass 8. The glass placement chamber 1 and temperature control chamber 2 are connected. The temperature control chamber 2 contains a cooling component 3 and a heating component 4. When cooling is needed, the cooling component 3 is activated, and the cold air generated by the cooling component 3 enters the glass placement chamber 1 to cool the ultra-thin flexible glass 8. When heating is needed, the heating component 4 is activated, and the heat generated by the heating component 4 enters the glass placement chamber to heat the ultra-thin flexible glass. A placement rack 9 is installed in the glass placement chamber 1 to support the glass requiring heating or cooling, ensuring reliable support. Adjacent glass pieces are spaced apart, and multiple pieces of glass can be placed on one rack for easy insertion or removal. This invention effectively solves the problem of partial potassium nitrate solidification occurring upon contact when the product temperature is too low before tempering, and also effectively solves the problem of uneven reaction occurring in localized areas upon contact when the temperature is too high. Furthermore, it addresses the issue that the cooling rate of molten potassium nitrate after tempering affects the localized reaction rate of the product. This effectively solves the problems of surface defects such as markings and performance defects such as stress, thus improving the yield of tempered products. The structure of this invention combines cooling and heating, reducing equipment costs and significantly minimizing adverse effects on the appearance of glass products during tempering.

[0029] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A heating and cooling device for tempering ultra-thin flexible glass, characterized in that: It includes a glass placement chamber (1), a temperature control chamber (2) is set near the glass placement chamber (1), the glass placement chamber (1) is connected to the temperature control chamber (2), a cooling component (3) and a heating component (4) are set in the temperature control chamber (2), and a placement rack (9) is set in the glass placement chamber (1).

2. The heating and cooling device for tempering ultra-thin flexible glass according to claim 1, characterized in that: The cooling component (3) is a cooling fan, and the heating component (4) is an electric heater.

3. The heating and cooling device for tempering ultra-thin flexible glass according to claim 1 or 2, characterized in that: A temperature sensor (5) is installed in the glass placement chamber (1), and the temperature sensor (5), cooling component (3) and heating component (4) are respectively connected to the control component.

4. The heating and cooling device for tempering ultra-thin flexible glass according to claim 1 or 2, characterized in that: A temperature control chamber (2) is provided on the upper part of the glass placement chamber (1).

5. The heating and cooling device for tempering ultra-thin flexible glass according to claim 4, characterized in that: The glass placement chamber (1) includes a chamber body and a chamber door (6).

6. The heating and cooling device for tempering ultra-thin flexible glass according to claim 5, characterized in that: The glass placement chamber (1) has a chamber door (6) installed at the front of the chamber body. The temperature control chamber (2) is located above the chamber body. The temperature control chamber (2) and the chamber body are connected by a channel (7).

7. The heating and cooling device for tempering ultra-thin flexible glass according to claim 1 or 2, characterized in that: The placement rack (9) inside the glass placement chamber (1) includes multiple sets of upper clamping teeth and multiple sets of lower clamping teeth, which are arranged symmetrically in the upper and lower parts.

8. The heating and cooling device for tempering ultra-thin flexible glass according to claim 1 or 2, characterized in that: The cooling component (3) is located above the heating component (4).

Citation Information

Patent Citations

  • Glass toughening furnace cooling device

    CN210620599U