High Thermal Conductivity Materials for HVAC Heat Exchangers

A phase change heat exchanger and outdoor unit for air conditioning that enhances heat transfer efficiency through a novel microchannel design. The heat exchanger comprises a gas pipe, liquid pipe, and heat exchange tube assembly with alternating microchannel heat pipes. The microchannel heat pipes are arranged between the gas and liquid tubes, forming a closed path for phase change heat transfer. The microchannel design enables improved heat transfer between the phase change medium and the refrigerant flow, while the gas and liquid pipes maintain their conventional configuration. The microchannel heat pipes are strategically positioned to optimize heat transfer between the phase change medium and the refrigerant flow.

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A heat exchanger for air conditioning systems that incorporates integrated heat dissipation fins on the heat exchange assembly. The assembly features parallel and spaced plate body components with thermally connected dissipation fins, where the fins are mounted on the heat exchange assembly rather than separate components. The assembly design enables efficient heat dissipation through a single, integrated cooling path while maintaining the conventional parallel-plate heat exchanger architecture.

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Air conditioner utilizing graphene-based heat exchangers to enhance cooling efficiency through novel thermal management strategies. The invention incorporates graphene-based heat exchangers with strategically integrated air bridges and pore structures, enabling enhanced convective heat transfer while promoting water vapor condensation. This innovative design enables the efficient removal of latent heat from the air stream, thereby improving overall cooling performance.

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High-efficiency fin heat exchanger for air-conditioning units that improves thermal performance through optimized fin geometry and tube configuration. The heat exchanger features a unique spiral fin arrangement with precisely controlled contact surface geometry, enabling enhanced heat transfer between the air stream and the heat transfer fluid. The design incorporates a specially engineered tube configuration that maximizes the fin surface area while maintaining structural integrity. This innovative approach enables the heat exchanger to achieve higher thermal efficiency compared to conventional fin heat exchangers.

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Aluminum air cooler for high-efficiency air conditioners that enhances fan blade protection while improving heat dissipation. The cooler features a thermally conductive ring sheet that surrounds the fan blades, with a heat-conducting rod connecting to the fin. The outer shell and ring assembly is made from aluminum alloy. The system incorporates spring-loaded washers, springs, and gaskets to maintain structural integrity during operation. The spring-loaded design enables precise control over the fan blade position and maintains optimal fan alignment while preventing blade damage.

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Graphene oxide-coated heat exchange tube for radiant cooling systems achieves high thermal conductivity, efficient heat transfer, and low construction cost. The coating enhances thermal conductivity by incorporating graphene oxide layers onto the tube surface, while maintaining structural integrity. This innovative approach enables high-performance radiant cooling systems with reduced material usage and weight compared to traditional metal components.

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A finned heat exchanger for air conditioners that enhances heat transfer efficiency through a novel thermal management system. The fin structure comprises two identical metal heat-conductive sheets arranged symmetrically, with a shallow groove radiating outward from the center of each sheet. This groove creates a thermally conductive cavity that fills with a specialized filler material, significantly improving heat transfer performance compared to conventional fin designs. The fin's parallel arrangement and fixed spacing enable efficient heat transfer between the fluid streams.

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High-efficiency air-conditioning heat exchanger for efficient refrigeration systems. The heat exchanger features a heat transfer tube with strategically positioned fins that are fixed in place. The tube is mounted on one side of a fan, which circulates refrigerant in the opposite direction to the heat exchanger. The heat exchanger utilizes a copper tube configuration for optimal thermal performance.

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A heat dissipation structure for inverter air conditioners that improves heat transfer efficiency through enhanced phase change heat dissipation. The structure comprises a porous capillary matrix formed by sintering metal powder, which enhances heat conduction and facilitates the flow of phase change working fluid. This matrix provides a more efficient pathway for heat transfer between the heat exchanger and the cooling system, thereby improving overall heat dissipation performance and reducing thermal gradients.

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Heat exchanger for improved heating and cooling efficiency in air conditioners without fans. The heat exchanger has a microchannel core sandwiched between two heat sinks, each with a heat plate and fins. The heat plates directly contact the microchannels to increase heat exchange area. The fins are spaced apart to further enhance exchange. This improves overall heat transfer efficiency compared to conventional fin-tube heat exchangers. The higher efficiency allows air conditioners to operate without a fan for no-wind or zero-wind operation, improving comfort.

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A heat dissipation system for inverter air conditioners that improves thermal management through enhanced heat transfer between the controller and heat exchanger. The system features radiating fins or bands that can be custom-shaped to optimize heat transfer between the controller and heat exchanger. The fins are designed with specific geometries to enhance convective heat transfer, while the heat exchanger itself is designed with improved thermal conductivity. The system enables improved heat dissipation performance compared to conventional designs, particularly in applications where heat generation exceeds design limits.

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Heat exchanger with enhanced thermal conductivity and corrosion resistance. The heat exchanger features a fin array with an organic coating containing a thermally conductive powder, where the powder has a higher thermal conductivity than the coating substrate. The coating substrate is a conventional material, and the thermally conductive powder is dispersed throughout the coating. The heat exchanger also incorporates a thermal medium between the fin and heat pipe, with a thermally conductive adhesive that prevents heat pipe-metal contact. This configuration significantly improves heat transfer efficiency compared to conventional heat exchangers.

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Heat exchanger with enhanced thermal performance, durability, and corrosion resistance through the application of nanoscale coatings on both fins and heat transfer tubes. The nanoscale coatings, comprising carbon nanotubes, provide superior radiation heat dissipation while maintaining excellent corrosion protection. The coatings are applied to both the fins and heat transfer tubes, enabling optimal heat transfer efficiency while ensuring long-term reliability. The nanoscale coatings enable enhanced radiation heat transfer between the fins and heat transfer tubes, while maintaining the necessary corrosion protection for both components.

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A heat transfer core for air conditioning systems that enhances energy efficiency through improved heat transfer characteristics. The core comprises a frame with an isolation layer and two folded plates arranged within the frame. The folded plates have an additional isolation layer and are positioned in close proximity to each other, with their channel directions intersecting. This configuration increases the effective contact area between the air flow and the heat transfer medium, thereby enhancing heat transfer rates and overall system performance.

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Microchannel heat exchanger with optimized airflow orientation to minimize pressure drop across the heat exchanger. The heat exchanger comprises a plurality of microchannel tubes and fins that are disposed between at least one pair of adjacent microchannel tubes, with at least one of the microchannel tube and the fin oriented substantially parallel to the direction of the primary gas flow. This parallel orientation eliminates the conventional angled flow path that typically results in pressure drops, enabling efficient heat transfer across the heat exchanger.

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A high-efficiency total heat exchanger with low cost and high heat exchange efficiency. The heat exchanger comprises an air outlet portion and an air inlet portion separated by a heat insulating wall, with heat transfer through the wall and heat transfer tube. The heat transfer tube is filled with a low boiling liquid medium, enabling efficient heat transfer through phase change. The heat exchanger's design utilizes the heat pipe principle to maximize thermal conductivity, with the heat generating object's heat being rapidly transmitted to the heat source through the heat pipe.

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Heat exchanger with enhanced heat transfer efficiency through improved contact between the fin and pipe. The heat exchanger features a heat-conductive medium between the pipe and fin, enabling direct contact between the two components. This design addresses the conventional gap between the pipe and fin, where heat transfer is typically limited due to the fin's surface roughness. The heat-conductive medium fills this gap, enabling more efficient heat transfer between the pipe and fin. The medium is selected for its resistance to environmental factors like high and low temperatures, water, ozone, and weathering, ensuring its long-term durability.

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A heat exchanger with enhanced heat transfer efficiency through a thermally conductive coating on the fin surfaces. The coating, with a higher thermal conductivity than the fin material, significantly increases the heat transfer coefficient between the fins and the surrounding fluid, thereby improving overall heat exchanger performance.

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A heat pipe heat exchanger for air conditioning systems that improves cooling efficiency by utilizing a unique two-phase heat transfer configuration. The heat exchanger comprises a U-shaped tube with a closed loop configuration where the condensing and evaporating ends are connected. The condensing end provides efficient heat transfer to the controller components, while the evaporating end rapidly absorbs heat from the controller surface. This configuration enables rapid heat dissipation and efficient cooling, particularly beneficial in applications where surface temperatures are high.

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Air conditioner with improved heat exchanger performance when used in both indoor and outdoor units. The design incorporates heat transfer tubes made of metallic materials like aluminum or aluminum alloys, where each tube is formed by inserting heat exchanger fins into the tubes. The fins are arranged in a multi-fan configuration to maximize heat transfer efficiency. The heat exchanger features spiral grooves in the fins that allow the refrigerant to circulate through the tubes, enabling higher performance compared to conventional straight grooved heat exchangers. The spiral grooves also enable improved pressure drop management through the use of narrower tube diameters.

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