Explosion-proof far infrared plate

Abstract

The utility model discloses a kind of explosion-proof far infrared plate, including upper cover, base, far infrared plate, thermocouple and explosion-proof hose, the far infrared plate is sealingly connected between the upper cover with the base, and explosion-proof cavity is formed between the far infrared plate with the base, the explosion-proof hose is communicated with the explosion-proof cavity, the explosion-proof hose is used for positive pressure input inert gas, the thermocouple is arranged in the explosion-proof cavity, and the thermocouple with the bottom end of the far infrared plate abuts, the thermocouple is used for real-time monitoring the temperature of far infrared plate.The explosion-proof far infrared plate of the utility model, by sealing positive pressure structure and multiple safety design, effectively ensure the safety of far infrared plate in positive oven use, improve heating efficiency and energy utilization rate simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery coating, specifically to an explosion-proof far-infrared plate. Background Technology

[0002] In the lithium battery coating process, electrode drying is the most energy-intensive step, and traditional hot air drying equipment suffers from low energy utilization and significant waste. Far-infrared heating plates, due to their high electrothermal efficiency (up to 99.6%), rapid heating, and uniform heat transfer, are gradually replacing traditional hot air heating. However, during the drying process of the positive electrode, a large amount of the organic solvent NMP in the slurry volatilizes, easily forming a flammable and explosive gas environment within the drying oven, rendering existing far-infrared plates unusable directly.

[0003] Therefore, there is a need to provide an explosion-proof far-infrared plate to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides an explosion-proof far-infrared plate. Through a sealed positive pressure structure and multiple safety designs, it effectively ensures the safety of the far-infrared plate in the positive electrode oven, while improving heating efficiency and energy utilization.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An explosion-proof far-infrared panel includes a top cover, a base, a far-infrared panel, a thermocouple, and an explosion-proof hose. The far-infrared panel is sealed between the top cover and the base, forming an explosion-proof cavity between the far-infrared panel and the base. The explosion-proof hose communicates with the explosion-proof cavity and is used for positive pressure input of inert gas. The thermocouple is disposed inside the explosion-proof cavity and abuts against the bottom end of the far-infrared panel. The thermocouple is used for real-time monitoring of the temperature of the far-infrared panel.

[0007] As a further improvement to the above technical solution, the upper cover includes an upper frame and a mesh plate, the mesh plate is fixedly connected to the upper end of the upper frame, and the far-infrared plate is connected between the upper frame and the base.

[0008] As a further improvement to the above technical solution, a support base is provided below the far-infrared plate. The support base includes a frame and a stainless steel plate. The stainless steel plate is fixedly connected to the bottom end of the frame, and the upper surface of the stainless steel plate is provided with a polished mirror surface structure.

[0009] As a further improvement to the above technical solution, the frame is supported below the far-infrared plate, and a sealing ring is provided between the far-infrared plate and the upper frame and the frame.

[0010] As a further improvement to the above technical solution, a fixing seat and a spring are provided in the middle of the stainless steel plate, the thermocouple is installed on the upper end of the spring, the middle part of the spring is connected to the stainless steel plate through the fixing seat, and the lower end of the spring abuts against the base.

[0011] As a further improvement to the above technical solution, thermal insulation cotton is filled between the stainless steel plate and the base.

[0012] As a further improvement to the above technical solution, one end of the base is provided with a gas pressurization port and a mounting hole. The explosion-proof hose is connected to the gas pressurization port, and an explosion-proof gland is installed in the mounting hole. The cables of the far-infrared plate and the thermocouple are led to the outside of the base through the explosion-proof gland.

[0013] As a further improvement to the above technical solution, a flow meter is connected to the explosion-proof hose, the flow meter is used to detect the gas flow in real time, and a one-way valve is provided at the air inlet of the explosion-proof hose.

[0014] As a further improvement to the above technical solution, an adjustable support leg is provided at the corner of the base. The adjustable support leg includes a fixed bracket, an adjustable support leg, and an adjustment handle. The fixed bracket is fixedly connected to the bottom of the base, and the adjustable support leg is fastened to the lower end of the fixed bracket through the adjustment handle.

[0015] As a further improvement to the above technical solution, the frame of the base is provided with a sealing groove, and an outer sealing ring is provided in the sealing groove.

[0016] The beneficial effects of this utility model are:

[0017] This invention uses a far-infrared plate sealed between the top cover and the base to form an explosion-proof cavity. An explosion-proof hose connects to the cavity, allowing for the positive pressure input of inert gases such as nitrogen, creating a physical isolation layer to isolate external flammable and explosive gases and significantly reduce the risk of explosion. Furthermore, a thermocouple is installed inside the explosion-proof cavity, contacting the bottom of the far-infrared plate, enabling real-time temperature monitoring in a sealed environment. This allows for precise temperature control, effectively preventing material thermal failure or ignition risks caused by overheating, and ensuring the safety of the far-infrared plate in the positive electrode oven. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the explosion-proof far-infrared plate of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the explosion-proof far-infrared plate of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram showing the disassembled structure of the explosion-proof far-infrared plate of this utility model.

[0023] Reference numerals: 1. Top cover; 11. Top frame; 12. Mesh plate; 2. Base; 21. Adjustable leg; 22. Fixed bracket; 23. Adjustable leg; 24. Adjustable handle; 25. Sealing groove; 26. Outer sealing ring; 3. Far-infrared plate; 4. Thermocouple; 5. Explosion-proof hose; 51. Flow meter; 52. One-way valve; 6. Explosion-proof chamber; 7. Support base; 71. Frame; 72. Stainless steel plate; 73. Fixed base; 74. Spring; 8. Sealing ring; 9. Insulation cotton; 10. Explosion-proof gland. Detailed Implementation

[0024] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0025] Reference Figures 1 to 4An explosion-proof far-infrared panel includes an upper cover 1, a base 2, a far-infrared panel 3, a thermocouple 4, and an explosion-proof hose 5. The far-infrared panel 3 is sealed between the upper cover 1 and the base 2, forming an explosion-proof cavity 6. The lower contacts of the far-infrared panel 3 are sealed within the explosion-proof cavity 6 with anti-spark adhesive, eliminating the risk of electrical spark leakage between the contacts. The explosion-proof hose 5 communicates with the explosion-proof cavity 6, allowing the positive pressure input of an inert gas (such as nitrogen) to create a physical isolation layer within the sealed cavity, effectively preventing the infiltration of external flammable and explosive gases and significantly reducing the risk of explosion. The thermocouple 4 is located within the explosion-proof cavity 6 and abuts against the bottom end of the far-infrared panel 3. In a sealed environment, the thermocouple 4 directly monitors the temperature of the far-infrared panel 3 in real time, enabling precise temperature control and effectively preventing material thermal failure or ignition risks caused by overheating. By adopting this structure, and utilizing a sealed positive pressure structure and multiple safety designs, safe use in the positive electrode oven is ensured, while improving heating efficiency and energy utilization.

[0026] Reference Figure 3 , Figure 4 In an embodiment of this utility model, the upper cover 1 includes an upper frame 11 and a mesh plate 12. The mesh plate 12 is fixedly connected to the upper end of the upper frame 11, and the mesh of the mesh plate 12 is relatively wide, so as not to affect the emission of far-infrared waves. Under the premise of ensuring normal operation, it can prevent the electrode 6 from being scratched. The far-infrared plate 3 is sandwiched between the upper frame 11 and the base 2 to ensure that the far-infrared plate 3 is stably installed.

[0027] Reference Figure 2 , Figure 4 In an embodiment of this utility model, a support base 7 is provided below the far-infrared plate 3. The support base 7 includes a frame 71 and a stainless steel plate 72. The stainless steel plate 72 is fixedly connected to the bottom end of the frame 71 by laser welding. The upper surface of the stainless steel plate 72 is provided with a polished mirror structure, which can efficiently reflect the heat radiated downward by the far-infrared plate 3 and redirect it back to the electrode, significantly reducing heat loss and improving heat utilization.

[0028] Specifically, the frame 71 is supported below the far-infrared plate 3 to ensure the tight connection between the far-infrared plate 3 and the upper cover 1 and the base 2. A sealing ring 8 is provided between the far-infrared plate 3 and the upper frame 11 and the frame 71. The double-layer sealing ring design effectively enhances the overall sealing performance and ensures that the airtightness is maintained after long-term use.

[0029] Reference Figure 2 , Figure 4In this embodiment of the present invention, a fixed base 73 and a spring 74 are provided in the middle of the stainless steel plate 72. The two work together to form a dynamic buffer structure. The thermocouple 4 is installed on the upper end of the spring 74. The middle part of the spring 74 is connected to the stainless steel plate 72 through the fixed base 73. The lower end of the spring 74 abuts against the base 2. It can effectively absorb mechanical vibration when the oven is running. When the equipment vibrates due to the operation of internal components or external environmental factors, the spring 74 can buffer the vibration impact through its own elastic deformation, so that the thermocouple 4 always remains stably abutting against the bottom end of the far-infrared plate 3, avoiding loosening and displacement caused by vibration, ensuring the continuity and accuracy of temperature monitoring data, and providing a reliable guarantee for the precise temperature control of the far-infrared plate 3.

[0030] Specifically, the space between the stainless steel plate 72 and the base 2 is filled with thermal insulation cotton 9. This thermal insulation cotton 9 is made of a high-efficiency heat insulation material, and its fine fiber structure forms countless tiny air chambers. Utilizing the low thermal conductivity of air, it greatly hinders heat conduction and loss. At the same time, the thermal insulation cotton 9 is tightly fitted between the two, completely wrapping the bottom area of ​​the support base 7 and the explosion-proof cavity 6. This not only further reduces the downward heat loss of the far-infrared plate 3 and improves the thermal energy utilization rate, but also effectively maintains the temperature stability inside the explosion-proof cavity, reducing the safety risks that may be caused by temperature fluctuations, and achieving dual optimization of equipment safety and performance.

[0031] Reference Figure 4 In this embodiment of the invention, one end of the base 2 is provided with a gas pressurization hole and a mounting hole. The gas pressurization hole is specifically used to connect the explosion-proof hose 5. In actual use, the explosion-proof hose 5 is tightly fitted into the gas pressurization hole, forming a stable and sealed connection structure. Through this connection, inert gas (such as nitrogen) can be smoothly introduced into the explosion-proof cavity 6 under positive pressure, continuously building a physical isolation layer, effectively isolating external flammable and explosive gases, and building a solid safety barrier for equipment operation. The mounting hole is used to install the explosion-proof gland 10. The cables of the far-infrared plate 3 and the thermocouple 4 are orderly led to the outside of the base 2 through the explosion-proof gland 10. As a professional explosion-proof sealing device, the explosion-proof gland 10 can not only reliably fix the cable and prevent it from being damaged by shaking or pulling during equipment operation, but also ensure that the cable exit point meets the strict explosion-proof requirements through a special sealing structure, preventing external dangerous gases from entering the explosion-proof cavity through the cable channel, and also preventing dangerous factors such as electric sparks from leaking out of the cavity, greatly improving the overall explosion-proof performance and electrical safety of the equipment. This series of meticulously designed interfaces and components work together to enable the base 2 to perform exceptionally well in key functions such as gas input and cable lead-out, laying a solid foundation for the stable and safe operation of the entire explosion-proof far-infrared panel system.

[0032] Reference Figure 1In this embodiment of the invention, a flow meter 51 is connected to the explosion-proof hose 5. The flow meter 51 uses high-precision sensing technology to monitor the gas flow rate entering the explosion-proof cavity 6 in millisecond-level real time. Whether it is the initial filling of inert gas or the gas replenishment operation during operation, the flow meter 51 can accurately feed back the gas flow data to the control system, so that the operator can keep abreast of the gas input status and ensure that the positive pressure value in the cavity is always maintained within the safe threshold range, providing data support for the effectiveness of the physical isolation layer. In addition, the air inlet of the explosion-proof hose 5 is equipped with a one-way valve 52. The one-way valve adopts a spring self-closing structure design, which has high sensitivity and reliable sealing. When gas is input, the one-way valve 52 automatically opens under the action of air pressure to ensure the smooth flow of inert gas. When the gas supply system pressure drops or the gas supply stops, the one-way valve 52 quickly rebounds and closes, forming a solid gas barrier, effectively preventing the inert gas in the explosion-proof cavity from flowing out in reverse, and at the same time preventing the backflow of external flammable and explosive gases. The dual configuration of flow meter 51 and check valve 52 not only enables dynamic monitoring of gas flow, but also establishes a safety protection mechanism to prevent gas backflow, providing dual protection for the stable operation of the explosion-proof far-infrared panel in high-risk environments.

[0033] Reference Figure 4 In this embodiment of the invention, adjustable legs 21 are provided at the corners of the base 2 to facilitate adaptation to different drying heights, greatly improving the environmental adaptability and usage flexibility of the explosion-proof far-infrared panel. The adjustable legs 21 adopt a modular assembly structure, including a fixed bracket 22, adjustable legs 23, and an adjusting handle 24. The fixed bracket 22 is firmly fixed to the bottom of the base 2 through high-strength welding or bolt connections, providing a solid and reliable foundation support for the entire adjustment mechanism. The adjustable legs 23 are securely connected to the lower end of the fixed bracket 22 via the adjusting handle 24. During adjustment, the operator can flexibly extend and retract the adjustable legs 23 along the guide structure of the fixed bracket 22 according to different drying requirements or installation environments. Then, by rotating the adjusting handle 24, the adjustable legs 23 can be quickly tightened and loosened to precisely adjust the explosion-proof far-infrared panel to the appropriate height. This design can not only adapt to various sizes of drying containers and production line layouts, but also effectively cope with complex installation conditions such as uneven ground, ensuring that the explosion-proof far-infrared plate remains stable during use, avoiding problems such as unstable equipment operation and uneven heating caused by unsuitable height or tilted ground, and significantly improving the practicality and work efficiency of the equipment.

[0034] Reference Figure 4In this embodiment of the invention, the frame of the base 2 is provided with a sealing groove 25, and an outer sealing ring 26 is provided inside the sealing groove 25. When the upper cover 1 and the base 2 are closed, the outer sealing ring 26 is compressed and undergoes elastic deformation, tightly fitting the connection between the upper cover 1 and the base 2, effectively filling all tiny gaps and forming an all-round, dead-angle-free sealing structure. This design not only prevents external dust, moisture, corrosive gases and other impurities from entering the explosion-proof cavity, avoiding damage to core components such as the far-infrared plate 3 and thermocouple 4, but also prevents the leakage of inert gas inside the cavity, maintaining a stable positive pressure environment inside the explosion-proof cavity, further improving the explosion-proof performance and operational reliability of the equipment.

[0035] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An explosion-proof far-infrared panel, characterized in that: The device includes a top cover, a base, a far-infrared plate, a thermocouple, and an explosion-proof hose. The far-infrared plate is sealed between the top cover and the base, forming an explosion-proof cavity between them. The explosion-proof hose communicates with the explosion-proof cavity and is used for positive pressure input of inert gas. The thermocouple is disposed inside the explosion-proof cavity and abuts against the bottom end of the far-infrared plate. The thermocouple is used to monitor the temperature of the far-infrared plate in real time.

2. The explosion-proof far-infrared plate according to claim 1, characterized in that: The top cover includes an upper frame and a mesh plate. The mesh plate is fixedly connected to the upper end of the upper frame, and the far-infrared plate is connected between the upper frame and the base.

3. The explosion-proof far-infrared plate according to claim 2, characterized in that: A support base is provided below the far-infrared plate. The support base includes a frame and a stainless steel plate. The stainless steel plate is fixedly connected to the bottom end of the frame, and the upper surface of the stainless steel plate is provided with a polished mirror structure.

4. The explosion-proof far-infrared plate according to claim 3, characterized in that: The frame is supported below the far-infrared plate, and a sealing ring is provided between the far-infrared plate and the upper frame and the frame.

5. The explosion-proof far-infrared plate according to claim 3, characterized in that: A fixing seat and a spring are provided in the middle of the stainless steel plate. The thermocouple is installed on the upper end of the spring. The middle part of the spring is connected to the stainless steel plate through the fixing seat. The lower end of the spring abuts against the base.

6. The explosion-proof far-infrared plate according to claim 3, characterized in that: The stainless steel plate and the base are filled with thermal insulation cotton.

7. The explosion-proof far-infrared plate according to claim 1, characterized in that: One end of the base is provided with a gas pressurization port and a mounting hole. The explosion-proof hose is connected to the gas pressurization port. An explosion-proof gland is installed in the mounting hole. The cables of the far-infrared plate and the thermocouple are led to the outside of the base through the explosion-proof gland.

8. The explosion-proof far-infrared plate according to claim 1, characterized in that: The explosion-proof hose is connected to a flow meter, which is used to detect the gas flow rate in real time. The air inlet of the explosion-proof hose is equipped with a one-way valve.

9. The explosion-proof far-infrared plate according to claim 1, characterized in that: The base is provided with adjustable legs at its corners. Each adjustable leg includes a fixed bracket, an adjustable leg, and an adjustable handle. The fixed bracket is fixedly connected to the bottom of the base, and the adjustable leg is fastened to the lower end of the fixed bracket via the adjustable handle.

10. The explosion-proof far-infrared plate according to claim 1, characterized in that: The base has a sealing groove on its frame, and an outer sealing ring is provided inside the sealing groove.

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