A surface heating device

Abstract

The utility model relates to the field of glass panel heating discloses a surface heating device, including glass panel body, the bottom of glass panel body is provided with the bottom plate, the bottom fixedly connected with the heat insulating plate of bottom plate, the top of bottom plate is opened and has the embedded groove, the inner wall fixedly connected with heating sheet of embedded groove, the outer wall fixedly connected with electric wire of heating sheet, the end fixedly connected with controller of electric wire, the top fixedly connected with the baffle of bottom plate, the inner wall of baffle is opened and has micro - flow channel, the inner wall fixedly connected with pipeline of baffle, the outer wall fixedly connected with sealing ring of pipeline, the end fixedly connected with small - size pump of pipeline. In the utility model, the heating sheet of back -shaped arrangement provides even heat source, and the micro - flow channel filled with gallium - based alloy in cooperation is driven under small - size pump and initiatively circulates heat conduction, realizes the high - efficiency even heating effect, improves heating efficiency and temperature uniformity.

Description

Technical Field

[0001] This utility model relates to the field of glass panel heating, and more particularly to a surface heating device. Background Technology

[0002] A glass panel is a plate-like structure made of glass material, mainly used for surface covering, functional integration, and aesthetic design. It is widely used in electronic equipment, home appliances, buildings, and smart homes. A glass panel heating device is a device that uses glass material as a panel and integrates electric heating elements to achieve heating function. It is mainly used for defrosting, defogging, constant temperature control, or object heating, combining aesthetics and functionality.

[0003] A search revealed that Chinese Patent Publication No. CN215453327U discloses a heatable glass panel. The first and second glass panels that make up the glass panel are both tempered glass, which has high strength. The first and second glass panels are bonded together by a PVB film. When the first or second glass panel breaks, the broken glass fragments will stick to the PVB film and will not scatter everywhere.

[0004] In the above technical solution, adhesive films are pasted between multiple sets of glass to avoid the risk of injury from flying glass fragments. However, glass heating relies on a conductive layer. When the conductive layer is the same size as the glass panel, heating results in high power consumption, reduced heating efficiency, and wasted resources. Therefore, a surface heating device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a surface heating device, which aims to improve the problem of high power consumption caused by heating the conductive layer of the surface heating device with the same volume as the glass panel in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a surface heating device, comprising a glass panel body, a base plate at the bottom of the glass panel body, a heat insulation plate fixedly connected to the bottom of the base plate, an embedding groove at the top of the base plate, a heating element fixedly connected to the inner wall of the embedding groove, an electric wire fixedly connected to the outer wall of the heating element, a controller fixedly connected to the end of the electric wire, a spacer fixedly connected to the top of the base plate, a microchannel formed on the inner wall of the spacer, a pipe fixedly connected to the inner wall of the spacer, a sealing ring fixedly connected to the outer wall of the pipe, a small pump fixedly connected to the end of the pipe, and a heat-conducting component at the top of the spacer for rapid heat conduction.

[0007] As a further description of the above technical solution:

[0008] The heating element is hexagonal, and its top is attached to the bottom of the spacer plate.

[0009] As a further description of the above technical solution:

[0010] The embedding groove is arranged in a U-shape, the wire passes through the interior of the embedding groove, and the outer wall of the sealing ring is fixedly connected to the inner wall of the partition plate.

[0011] As a further description of the above technical solution:

[0012] The end of the pipe away from the small pump is connected to the interior of the microchannel. The pipe passes through the partition plate. The microchannel is configured as multiple sets of U-shaped channels that are interconnected.

[0013] As a further description of the above technical solution:

[0014] The heat-conducting component includes a groove, and a heat spreader plate is fixedly connected to the inner wall of the groove.

[0015] As a further description of the above technical solution:

[0016] The groove is formed on the top outer wall of the partition plate, and the top of the partition plate is fixedly connected to the bottom of the glass panel body.

[0017] As a further description of the above technical solution:

[0018] The top of the heat spreader plate is attached to the bottom of the spacer plate.

[0019] As a further description of the above technical solution:

[0020] The glass panel body is provided with a protective frame one on the outside, and a protective frame two is provided on the outside of the protective frame one. The outer wall of the protective frame one is provided with a slot, and a magnetic sheet is fixedly connected to the inner wall of the slot. A magnetic block is fixedly connected to the outer wall of the protective frame two.

[0021] As a further description of the above technical solution:

[0022] The first protective frame and the second protective frame are fitted onto the outer wall of the glass panel body, and the inner wall of the slot is adapted to the outer wall of the magnetic block.

[0023] As a further description of the above technical solution:

[0024] The outer wall of the magnetic sheet is magnetically connected to the outer wall of the magnetic block.

[0025] This utility model has the following beneficial effects:

[0026] 1. In this utility model, a uniform heat source is provided by heating elements arranged in a U-shape. The microchannels filled with gallium-based alloy are actively circulated and heat-conducted under the drive of a small pump. Combined with the high thermal conductivity heat spreader at the top, heat is rapidly diffused, achieving a highly efficient and uniform heating effect. At the same time, the heat insulation plate at the bottom effectively reduces heat loss and improves heating efficiency and temperature uniformity.

[0027] 2. In this utility model, the double-layer protective frame structure combined with the magnetic design ensures the stability of the glass panel body by using adhesive, while realizing the convenient and non-destructive disassembly and assembly of the first protective frame and the second protective frame. This facilitates cleaning, maintenance or replacement, and improves the protective performance and long-term use convenience of the glass panel. Attached Figure Description

[0028] Figure 1 This is a side view of the main structure of a surface heating device proposed in this utility model;

[0029] Figure 2 This is an exploded view of the main structure of a surface heating device proposed in this utility model;

[0030] Figure 3 This is a cross-sectional schematic diagram of the partition plate of a surface heating device proposed in this utility model;

[0031] Figure 4 This is a schematic diagram showing the separation of the floor and protective frame of a surface heating device proposed in this utility model;

[0032] Figure 5 This is a schematic diagram of the protective frame of a surface heating device proposed in this utility model.

[0033] Legend:

[0034] 1. Glass panel body; 2. Base plate; 3. Heat insulation board; 4. Embedded groove; 5. Heating element; 6. Wire; 7. Controller; 8. Spacer plate; 9. Microchannel; 10. Pipe; 11. Sealing ring; 12. Mini pump; 13. Groove; 14. Heat spreader plate; 15. Protective frame one; 16. Protective frame two; 17. Slot; 18. Magnetic sheet; 19. Magnetic block. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figures 1-3This utility model provides an embodiment of a surface heating device, including a glass panel body 1, which serves as the final carrier for heating and use, achieving uniform temperature bearing and efficient utilization, ensuring a stable and efficient heating experience for the user. A base plate 2 is provided at the bottom of the glass panel body 1, providing stable support and a structural integration foundation. A heat insulation plate 3 is fixedly connected to the bottom of the base plate 2, effectively blocking heat loss downwards, saving energy and reducing heat loss to the outside of the device, improving energy utilization efficiency, reducing energy waste, allowing more heat to be used for effective heating, and improving the energy-saving performance of the device. An embedding groove 4 is provided at the top of the base plate 2, the embedding groove 4 being arranged in a U-shape, optimizing the spatial layout and enhancing structural stability, providing a stable installation space for the heating element 5, ensuring... To ensure long-term operation without displacement risk, the heating element 5 is installed more securely, avoiding any impact on heating effect due to displacement. Simultaneously, it optimizes the utilization of internal space. The heating element 5, a PTC ceramic heating element, is fixedly connected to the inner wall of the embedding groove 4. The heating element 5 is hexagonal, increasing the heating area and improving heat generation efficiency. It generates more heat with the same energy consumption, accelerating the heating rate. Several groups of heating elements 5 are evenly distributed within the embedding groove 4, achieving initial uniform heat distribution and preventing excessive or insufficient local heat concentration, laying the foundation for subsequent uniform heat transfer. A wire 6 is fixedly connected to the outer wall of the heating element 5, extending into the embedding groove 4 to provide a power transmission channel for the heating element 5, ensuring stable power supply. The end of the wire 6 is fixedly connected to… A controller 7 is connected, which adopts PWM power regulation mode. After reaching the set temperature, it switches to a 15% power maintenance state, which reduces energy consumption compared to traditional full-surface conductive layer heating. The controller 7 is used to regulate the working state of the heating element 5, achieving precise temperature control. This allows users to flexibly adjust the temperature according to their needs, meeting the requirements of different scenarios. A spacer plate 8 is fixedly connected to the top of the base plate 2, separating the heating element 5 from the heat-conducting components. It also supports the upper structure, preventing direct contact between the heating element 5 and the heat-conducting components and providing reliable support for the upper components. The top of the heating element 5 fits against the bottom of the spacer plate 8, facilitating heat transfer from the heating element 5 to the spacer plate 8, reducing heat loss during heat transfer, and improving heat transfer efficiency. Microchannels 9 are formed on the inner wall of the spacer plate 8. The interior of channel 9 is filled with a gallium-based alloy. The gallium-based alloy filling the microchannel 9 is a Ga-In-Sn ternary alloy, with the following composition by mass percentage: gallium 68%–72%, indium 20%–22%, and tin 8%–10%. This alloy has a melting point of -10℃ to 15℃, a boiling point >2000℃, is liquid at room temperature, and has a thermal conductivity ≥25W / (m·K), meeting the operating temperature requirements of -20℃ to 150℃. To prevent oxidation, the alloy surface is covered with an inert gas layer. The inner walls of the pipe 10 and the microchannel 9 are ceramicized, such as with anodized aluminum, to prevent the alloy from corroding the flow channels. The excellent thermal conductivity of the gallium-based alloy is used to transfer heat quickly and efficiently. The microchannel 9 is designed with multiple sets of interconnected U-shaped flow channels.To expand the heat transfer range and ensure uniform heat diffusion, allowing heat to cover a larger area and avoiding excessive local temperature differences, a pipe 10 is fixedly connected to the inner wall of the partition plate 8, and a sealing ring 11 is fixedly connected to the outer wall of the pipe 10. The sealing ring 11 is made of perfluoroether rubber material, and the sealing ring 11 and the pipe 10 adopt a double O-ring structure to prevent gallium-based alloy leakage during flow, ensuring that the gallium-based alloy does not leak out, and guaranteeing the normal operation and safety of the device. The outer wall of the sealing ring 11 is fixedly connected to the inner wall of the partition plate 8 to enhance the fixing effect of the sealing ring 11 and further improve the sealing performance. The end of the pipe 10 is fixedly connected to... A small pump 12, configured as a micro gear pump, is connected to provide power for the circulation of the gallium-based alloy within the microchannel 9. The small pump 12 can extract a certain amount of gallium-based alloy and inject it into the microchannel 9, allowing the alloy to flow within it. This ensures that the alloy is filled as needed and forms a circulation. The fluid circulates within the channel, achieving continuous heat transfer and uniform distribution. The end of the pipe 10 furthest from the small pump 12 is connected to the interior of the microchannel 9, forming a complete circulation path for the gallium-based alloy and creating a closed-loop system to ensure smooth circulation. The pipe 10 penetrates the spacer plate 8.

[0037] Reference Figures 2-3 A heat-conducting component is provided on the top of the partition plate 8 to quickly conduct heat, accelerate the heat transfer speed to the glass panel body 1, improve heat transfer efficiency, and shorten the heating time of the glass panel. The heat-conducting component includes a groove 13 and a heat spreader 14. The groove 13 is formed on the top outer wall of the partition plate 8 to provide an installation position for the heat spreader 14, ensuring stable installation of the heat spreader 14 and facilitating heat transfer. The top of the partition plate 8 is fixedly connected to the bottom of the glass panel body 1 to realize the direct transfer of heat from the partition plate to the glass panel, reducing intermediate heat transfer links and reducing heat loss. The heat spreader 14 is fixedly connected to the inner wall of the groove 13. The heat spreader 14 is made of copper-graphene composite material, which utilizes high thermal conductivity to quickly diffuse heat. The top of the heat spreader 14 is in contact with the bottom of the partition plate 8 to ensure that heat can be efficiently transferred from the partition plate 8 to the heat spreader 14. A silicone grease thermal conductive layer is coated between the heat spreader 14 and the glass panel body 1 to reduce the interface thermal resistance, enhance the heat transfer effect, and improve the heat utilization efficiency.

[0038] Reference Figures 4-5, a protective frame one 15 is arranged outside the glass panel body 1, and a protective frame two 16 is arranged outside the protective frame one 15. The protective frame one 15 and the protective frame two 16 are sleeved on the outer wall of the glass panel body 1 and fixed with an adhesive, providing double protection for the edge of the glass panel and enhancing the structural stability of the glass panel. A slot 17 is formed on the outer wall of the protective frame one 15, a magnetic sheet 18 is fixedly connected to the inner wall of the slot 17, a magnetic block 19 is fixedly connected to the outer wall of the protective frame two 16, the inner wall of the slot 17 is adapted to the outer wall of the magnetic block 19, and the outer wall of the magnetic sheet 18 is magnetically connected to the outer wall of the magnetic block 19. The slot 17, the magnetic sheet 18 and the magnetic block 19 are respectively provided with two groups, which are respectively arranged on the outer walls of both ends of the protective frame one 15 and the protective frame two 16. The protective frame one 15 and the protective frame two 16 are arranged in a C shape with their openings facing each other, capable of covering and protecting the edge of the glass panel body 1. The convenient assembly and fixation of the protective frame one 15 and the protective frame two 16 are achieved through magnetic connection, and it is also convenient for subsequent disassembly and maintenance.

[0039] Working principle: The controller 7 supplies power to multiple groups of hexagonal heating sheets 5 in the embedding groove 4 through the wire 6. After the heating sheets 5 are powered on, heat is generated. Since the top of the heating sheet 5 is in contact with the bottom of the spacer 8, the heat is first transferred to the spacer 8. At this time, the small pump 12 is started, and the gallium-based alloy is injected into multiple groups of connected loop-shaped microchannels 9 on the inner wall of the spacer 8 through the pipeline 10. The gallium-based alloy circulates in the microchannels 9, and the connection between the pipeline 10 and the microchannels 9 is sealed by the sealing ring 11 to prevent leakage. The heat generated by the heating sheet 5 is quickly absorbed by the flowing gallium-based alloy, and the uniform diffusion of the heat inside the spacer 8 is achieved through fluid circulation, avoiding local overheating. The heat is conducted from the spacer 8 to the heat conduction component at the top: the heat sink plate 14 in the groove 13 at the top of the spacer 8 is closely attached to the spacer 8, further quickly conducting and evenly distributing the dispersed heat. The heat sink plate 14 is connected to the bottom of the glass panel body 1 through the top of the spacer 8, and finally the uniform heat is transferred to the glass panel body 1 to achieve its heating function. In addition, the protective frame one 15 and the protective frame two 16 outside the glass panel body 1 are magnetically connected by the magnetic sheet 18 and the magnetic block 19 in the slot 17, forming a double protection structure, protecting the edge of the glass panel while ensuring the stable operation of the device. The power of the heating sheet 5 is regulated by the controller 7 throughout the process, and combined with the fluid circulation of the gallium-based alloy and the heat equalizing effect of the heat sink plate 14, efficient and uniform heating of the glass panel is achieved.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A surface heating device, comprising a glass panel body (1), characterized in that: The bottom of the glass panel body (1) is provided with a base plate (2), and a heat insulation plate (3) is fixedly connected to the bottom of the base plate (2). An embedding groove (4) is opened on the top of the base plate (2). A heating element (5) is fixedly connected to the inner wall of the embedding groove (4). An electric wire (6) is fixedly connected to the outer wall of the heating element (5). A controller (7) is fixedly connected to the end of the electric wire (6). A partition plate (8) is fixedly connected to the top of the base plate (2). A microchannel (9) is opened on the inner wall of the partition plate (8). A pipe (10) is fixedly connected to the inner wall of the partition plate (8). A sealing ring (11) is fixedly connected to the outer wall of the pipe (10). A small pump (12) is fixedly connected to the end of the pipe (10). A heat-conducting component is provided on the top of the partition plate (8) for rapid heat conduction.

2. The surface heating device according to claim 1, characterized in that: The heating element (5) is hexagonal, and the top of the heating element (5) is attached to the bottom of the spacer plate (8).

3. The surface heating device according to claim 1, characterized in that: The embedding groove (4) is arranged in a U-shape, the wire (6) passes through the interior of the embedding groove (4), and the outer wall of the sealing ring (11) is fixedly connected to the inner wall of the partition plate (8).

4. A surface heating device according to claim 1, characterized in that: The end of the pipe (10) away from the small pump (12) is connected to the interior of the microchannel (9). The pipe (10) passes through the partition plate (8). The microchannel (9) is configured as multiple sets of U-shaped channels that are interconnected.

5. A surface heating device according to claim 1, characterized in that: The heat-conducting component includes a groove (13), and a heat-spreading plate (14) is fixedly connected to the inner wall of the groove (13).

6. A surface heating device according to claim 5, characterized in that: The groove (13) is formed on the top outer wall of the partition plate (8), and the top of the partition plate (8) is fixedly connected to the bottom of the glass panel body (1).

7. A surface heating device according to claim 5, characterized in that: The top of the heat spreader (14) is attached to the bottom of the spacer (8).

8. A surface heating device according to claim 1, characterized in that: The glass panel body (1) is provided with a protective frame one (15) on the outside, and a protective frame two (16) is provided on the outside of the protective frame one (15). The outer wall of the protective frame one (15) is provided with a slot (17). A magnetic sheet (18) is fixedly connected to the inner wall of the slot (17), and a magnetic block (19) is fixedly connected to the outer wall of the protective frame two (16).

9. A surface heating device according to claim 8, characterized in that: The first protective frame (15) and the second protective frame (16) are fitted onto the outer wall of the glass panel body (1), and the inner wall of the slot (17) is adapted to the outer wall of the magnet (19).

10. A surface heating device according to claim 8, characterized in that: The outer wall of the magnetic sheet (18) is magnetically connected to the outer wall of the magnetic block (19).

Images