Outdoor cooling system based on a canopy

Abstract

An outdoor cooling system based on a canopy is disclosed. The system includes a canopy mounted above a table and a cooling unit positioned on top of the canopy. The cooling unit includes a fan and a motor connected to the fan. Multiple vents are located below the canopy, each operatively connected to the cooling unit, and their angle is adjustable between 30 and 90 degrees to direct cooling air downwards towards the table. The system also includes a water tank located below the table, a pump connected to a riser pipe for conveying water from the water tank to the cooling unit, and a return pipe for recirculating excess water or condensate back to the water tank. A printed circuit board is connected to the motor and pump and configured to control their operation. This system provides directional and recirculating evaporative cooling to people seated under the canopy.

Description

Technical Field

[0001] This utility model relates to an outdoor cooling system for shaded seating areas. The system includes a canopy mounted above the table, cooling units arranged on top of the canopy, a set of adjustable vents arranged below the canopy, and a water circulation mechanism for achieving evaporative cooling. Background Technology

[0002] Outdoor cooling systems with shaded seating are frequently used in parks, resorts, cafes, and other outdoor environments where heat reduction is crucial for comfort. Traditional methods include misting umbrellas and evaporative air units, but these systems are often hampered by structural limitations, inefficient cooling methods, or operational complexities. While various designs have emerged to improve outdoor comfort, most of these systems fail to provide an integrated, self-sufficient solution that balances portability, performance, and control.

[0003] Chinese utility model CN207912250U discloses an umbrella structure incorporating an evaporative cooling mechanism. The system features a fabric canopy with a water-absorbing inner layer and includes a fan and spray mechanism to distribute cool air. However, the design lacks any integrated structure for seating use, and there is no clearly defined location for a water tank and pump system. Furthermore, it lacks electronically adjustable airflow, vent orientation, or intelligent operation control, which limits its cooling efficiency and adaptability in various outdoor scenarios.

[0004] US Patent 6886759B1 describes a mist umbrella that utilizes a network of spray nozzles integrated into the canopy. This design allows for the delivery of a mist using an external pressurized water source to provide relief in hot environments. However, it lacks any fan-assisted airflow, internal water storage, or pumping components. The system also lacks self-sufficiency, requiring a continuous connection to an external ducting system, and offers no electronic controls or integration for temperature regulation.

[0005] US Patent Application US20120103376A1 outlines a freestanding umbrella equipped with a spray system capable of atomizing water droplets under the canopy. The system includes a spray manifold and a control mechanism that adjusts the mist according to ambient air temperature. Despite these improvements, this invention relies solely on the spray for cooling and does not include airflow components such as fans or motors. It also lacks a water recirculation system and does not provide electronic or programmable control via a central logic unit.

[0006] Chinese patent application CN110786606A describes an outdoor umbrella air conditioning device that includes a control system and two canopy surfaces. The device uses sensors to detect the presence of a person and ambient conditions, and accordingly powers the internal air conditioning unit. While the system addresses some automation issues, its reliance on a battery-powered air conditioning compressor mounted on a chassis increases complexity and weight. Furthermore, the system lacks an evaporative cooling mechanism with a recirculating water loop, directional ventilation control, and a lightweight construction suitable for portable shaded seating.

[0007] It will be understood that while the aforementioned systems contribute progressively more to outdoor cooling, each system has significant limitations. Some systems require external infrastructure such as pressurized water or power outlets. Others do not include airflow regulation via fans or directional vents, while still others lack closed-loop water circulation or programmable control systems. These deficiencies hinder their effectiveness, availability, and deployment in public or commercial spaces where efficient, self-sufficient, and controlled cooling is essential. Utility Model Content

[0008] This disclosure provides a canopy-based outdoor cooling system. The system includes a canopy mounted above a table and a cooling unit disposed on top of the canopy. The cooling unit includes a fan and a motor connected to the fan, wherein the fan is configured to generate airflow. Multiple vents are disposed below the canopy, each operatively connected to the cooling unit. The system also includes a water tank located below the table for storing water, a pump connected to the water tank, a riser for transferring water from the water tank to the cooling unit, and a return pipe configured to return excess water or condensate from the cooling unit back to the water tank. A printed circuit board (PCB) is connected to the motor and pump and is configured for controlled operation to continuously and effectively deliver cooling air through the vents. This configuration facilitates targeted and recirculating evaporative cooling in outdoor seating environments while maintaining a self-contained electronic coordination structure.

[0009] In one implementation, the angle of each vent can be adjusted from 30 to 90 degrees to direct cooling air downwards toward the table.

[0010] In one embodiment, the cooling unit includes a housing made of UV-resistant plastic or lightweight, durable aluminum. This material configuration improves weather resistance while maintaining structural integrity and portability.

[0011] In another embodiment, the cooling unit also includes an automatic drain valve connected to the return pipe, configured to drain excess water or condensate from the cooling unit into a water tank. This allows for uninterrupted operation while reducing the risk of water accumulation or overflow.

[0012] In another embodiment, the cooling unit also includes a dust filter, which is configured to filter dust from the air entering the cooling unit. This helps improve air quality and prevents contamination of internal components.

[0013] In another embodiment, the cooling unit also includes a cellulose pad configured to retain moisture, wherein the cellulose pad promotes evaporative cooling of the air passing through it. This design improves cooling efficiency by utilizing the principle of evaporation within the airflow stream.

[0014] In one embodiment, the cooling unit further includes a water distributor configured to distribute water received from the riser pipe onto the cellulose pad. This ensures uniform saturation of the cellulose pad and optimizes the evaporation surface area.

[0015] In another embodiment, the cooling unit also includes a water collection basin configured to collect excess water flowing through the cellulose pad. This supports a closed-loop water circulation system and helps minimize water waste.

[0016] In another embodiment, the cellulose mat is made of treated, mildew-resistant compressed cardboard or cellulose paper. This improves durability and hygiene while maintaining effective moisture retention.

[0017] In one implementation, each vent is positioned at a downward angle of 60 degrees relative to the canopy. This orientation provides effective directional airflow for users seated around a table.

[0018] In another implementation, the fan comprises blades made of reinforced plastic or lightweight aluminum. This structure offers a balance between weight reduction and structural performance.

[0019] In another embodiment, the motor comprises copper or aluminum coils, a stainless steel jacket, and a thermoplastic housing. These features enable reliable motor function under various environmental conditions.

[0020] In another implementation, the pump is housed within a pump casing made of waterproof reinforced plastic. This design protects the pump components from environmental damage and extends their service life.

[0021] In another implementation, the pump is connected to a pump motor that includes copper or aluminum coils. This allows for efficient electrical operation while providing material flexibility based on manufacturing preferences.

[0022] In another implementation, each of the riser and return pipes is made of reinforced plastic or stainless steel. These materials provide the waterway with mechanical strength and corrosion resistance.

[0023] In one embodiment, the printed circuit board is positioned outside the cooling unit. This arrangement protects sensitive electronic components from water corrosion and improves maintainability.

[0024] In another implementation, the printed circuit board is communicatively connected to a control system, which includes a wall-mounted control unit and a remote controller. This enables wireless user interaction and allows for flexible, remote control of the cooling system's functions.

[0025] It is understood that all the above embodiments can be used in combination. All steps performed by the entities described in this disclosure, and the functions performed by the entities, are intended to mean that the respective entities are suited to or configured to perform the respective steps and functions. It will be understood that the features of this disclosure can be combined in various ways without departing from the scope of this disclosure as defined by the appended claims. Other aspects, advantages, features, and objects of this disclosure will become apparent from the accompanying drawings and the detailed description of the illustrative embodiments constructed in conjunction with the following appended claims. Attached Figure Description

[0026] Preferred embodiments of this disclosure will now be described by way of example only, with reference to the accompanying drawings:

[0027] Figure 1 This is a perspective view of an outdoor cooling system based on a canopy.

[0028] Figure 2 It can be used Figure 1 A perspective view of the waterways in the system shown.

[0029] Figures 3A-3C These are the perspective view, front view, and top view of the water tank.

[0030] Figures 4A-4C These are perspective, front, and top views of the cooling unit bracket.

[0031] Figures 5A-5C It shows Figure 1 The perspective, front view, and top view of the canopy-based outdoor cooling system highlight the structural integration.

[0032] Figure 6 The diagram shows Figures 5A-5C An example running scenario of the system shown. Specific Implementation

[0033] The exemplary embodiments described herein, along with their various features and advantageous details, will be explained more fully with reference to the non-limiting embodiments illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and manufacturing techniques are omitted herein to avoid unnecessarily obscuring the embodiments. The description herein is intended only to facilitate an understanding of how the exemplary embodiments herein can be implemented and to further enable those skilled in the art to implement the exemplary embodiments herein. Therefore, this disclosure should not be construed as limiting the scope of the exemplary embodiments herein.

[0034] Reference Figure 1 The figure shows a perspective view of a canopy-based outdoor cooling system 100 according to an embodiment of the present disclosure. System 100 is designed to deliver evaporative cooling to people seated around tables in outdoor environments such as cafes, parks, and resorts by integrating a canopy structure, cooling units, and a closed-loop water circulation mechanism. System 100 combines passive shade with active cooling, thereby improving thermal comfort in outdoor environments.

[0035] System 100 includes a canopy 102 mounted above a table 104. As used herein, the term "canopy" refers to a large overhead cover configured to provide shade and structural support for the associated components. In this example, the canopy 102 is configured to support the weight of the elevated cooling unit while also serving as a platform for distributing cooling air. The canopy 102 is mounted at a height sufficient for comfortable seating while maintaining unobstructed airflow from the cooling system.

[0036] System 100 also includes a cooling unit 106 disposed on top of the canopy 102. As used herein, the term "cooling unit" refers to an air cooling device configured to generate and deliver cooling air downwards toward the seating area. The elevated arrangement of the cooling unit 106 allows for gravity-fed air distribution and facilitates vertical separation from the water tank below. In one example, the cooling unit 106 is implemented as a desert air conditioning module and is compact in form to minimize structural loads on the canopy 102. This arrangement also allows air to flow directly downwards with minimal resistance.

[0037] Cooling unit 106 includes a motor 108 operatively connected to a fan (not shown) configured to generate airflow. As used herein, the term "motor" refers to an electrically driven component configured to rotate fan blades within cooling unit 106. Upon startup, motor 108 drives the fan to continuously draw ambient air into the cooling unit and subsequently forces the air through internal cooling components, thereby allowing the cooling air to be directed towards a target area.

[0038] System 100 also includes multiple vents 110 disposed below the canopy 102. As used herein, the term "vent" refers to an outlet configured to direct and exhaust cooling air to a designated area. Each vent 110 is fluidly connected to the cooling unit 106 and is angularly adjustable relative to the horizontal plane of the canopy 102 within a range of 30 to 90 degrees. This configuration allows the user to control the airflow direction based on solar orientation, wind conditions, and user seating arrangement. In a preferred embodiment, the vents are positioned at a 60-degree angle to maximize downward airflow coverage across the entire table area.

[0039] System 100 also includes a water tank 112 located beneath table 104. As used herein, "water tank" refers to a sealed container configured to store water required for evaporative cooling. The water tank 112 is centrally located and low to the ground to serve as a stable base for the vertical support structure. The water tank 112, positioned directly beneath the table, also allows for the compact integration of seating, shade, and cooling components into a unified system.

[0040] A riser pipe 114 extends from the water tank 112 to the cooling unit 106. As used herein, the term "riser pipe" refers to a fluid conduit configured to transport water upwards from the water tank to the elevated cooling unit. The riser pipe 114 is vertically mounted within the central column supporting the canopy and allows for a continuous flow of water to the cooling unit during system operation. Because the cooling unit is elevated, the water lifted through this pipe undergoes additional cooling as it passes through the ambient airflow channels surrounding the column.

[0041] The return pipe 116 extends from the cooling unit 106 back to the water tank 112. As used herein, the term "return pipe" refers to a conduit configured to carry excess water or condensate from the cooling unit downwards into the water tank for recirculation. This return path ensures closed-loop operation, allowing the reuse of the same water and thus reducing consumption. As the returned water passes through the environmental zone surrounding the canopy pillar, it is further cooled, which improves the thermal performance of subsequent cooling cycles.

[0042] System 100 also includes a pump 118 connected to a water tank 112 and a riser pipe 114. As used herein, the term "pump" refers to an electrically driven hydraulic device configured to pressurize water and deliver it from a reservoir to a desired height. Pump 118 draws water from the water tank and propels it upward through the riser pipe 114 into the cooling unit 106. Pump 118 may be actuated by an external control system or by the internal logic of the system's printed circuit board.

[0043] Printed circuit board (PCB) 120 is connected to each of motor 108 and pump 118. As used herein, the term "PCB" refers to a control board containing circuit traces and electronic components configured to coordinate and manage the operation of active system components. PCB 120 sends electrical signals to start the motor for airflow generation and actuates the pump for water delivery. In some cases, the PCB may also regulate the operating cycle, detect input conditions (such as temperature or user commands), and shut down the system after a predetermined cooling interval. Placing PCB 120 outside the cooling unit 106 helps protect sensitive electronic components from exposure to moisture and heat buildup.

[0044] During operation, PCB 120 actuates pump 118, causing water to be drawn from water tank 112 and lifted through pipe 114 to cooling unit 106. Inside cooling unit 106, water interacts with internal components to cool the incoming airflow. Motor 108 drives fan to draw ambient air into the unit, which is cooled by water-enhanced evaporation and then discharged through vent 110 to a person sitting at the table. Excess water is returned to water tank 112 through return pipe 116, thus achieving continuous operation in a closed-loop cycle.

[0045] In one scenario, System 100 is deployed in a coastal café where customers sit at outdoor tables during the hot afternoon hours. Upon activation, PCB 120 starts motor 108 and pump 118, allowing cool air to flow through vents 110. The 60-degree angled vents ensure even coverage of the entire round table, improving customer comfort without generating excessive noise or fog.

[0046] In another scenario, system 100 is used during public outdoor activities in a park. Cooling unit 106 is turned on in the morning and runs continuously throughout the day. Pump 118 efficiently recirculates water, while PCB 120 manages the operating cycle to balance performance and energy consumption. Return pipe 116 ensures minimal water loss, allowing for uninterrupted use for several hours with only a small water tank.

[0047] This configuration of System 100 offers several significant technical advantages. By arranging the cooling units above the canopy, effective air distribution is achieved using gravity-fed airflow without relying on high-powered fans. The integration of the water lift and recirculation mechanisms facilitates closed-loop cooling, which improves sustainability by minimizing water waste. Adjustable vent angles allow for targeted airflow to different user settings, while the use of a PCB enables automatic control of pump and motor operation for reliable and responsive cooling. These features collectively create a self-sufficient, adaptable cooling system suitable for a variety of outdoor environments.

[0048] In one embodiment, the cooling unit 106 includes a housing 122, which is made of UV-resistant plastic or lightweight, durable aluminum. As used herein, the term "housing" refers to the structural enclosure that surrounds and protects the internal cooling components, including the motor 108, fan, and evaporator elements. The housing 122 not only provides a physical barrier against dust, debris, and mechanical damage but also ensures thermal insulation and resistance to prolonged exposure to sunlight. The use of UV-resistant or lightweight aluminum materials supports durability in outdoor environments while minimizing structural loads on the canopy 102.

[0049] In another embodiment, cooling unit 106 also includes an automatic drain valve 124 connected to return pipe 116. As used herein, the term "automatic drain valve" refers to a self-actuated flow control device configured to drain excess water or condensate from cooling unit 106 back to water tank 112 without manual intervention. Drain valve 124 ensures that internal condensate or overflow water is effectively directed into return pipe 116, maintaining the closed-loop nature of the system and preventing the accumulation of water within cooling unit 106. The valve's automated nature enables continuous, maintenance-free operation over extended periods.

[0050] In another embodiment, the cooling unit 106 also includes a dust filter 126, which is positioned to filter dust from the air entering the cooling unit 106. As used herein, the term "dust filter" refers to a porous or mesh barrier configured to remove airborne particles from the incoming airflow before it interacts with the internal cooling components. The dust filter 126 is preferably installed at the air inlet of the cooling unit 106 to maintain the cleanliness and performance of the fan, motor 108, and other cooling media. By preventing particle buildup, the dust filter 126 improves airflow quality, extends system life, and maintains cooling efficiency, especially in outdoor environments prone to dust and debris.

[0051] In one embodiment, the cooling unit 106 further includes a cellulose pad 128 configured to retain moisture, wherein the cellulose pad 128 facilitates evaporative cooling of air passing through it. As used herein, the term "cellulose pad" refers to a porous, hygroscopic medium, typically made of compressed cellulose or fiberboard, constructed to maximize surface area for evaporative exchange. During operation, water lifted from the water tank 112 via the riser 114 is distributed onto the cellulose pad 128, which absorbs and retains moisture. As the motor 108 drives the airflow through the saturated pad, heat is extracted from the air through evaporation, reducing its temperature before being discharged through the vent 110. The cellulose pad 128 plays a crucial role in the evaporative cooling process by serving as the primary interface between the water and the moving airflow.

[0052] In another embodiment, the cooling unit 106 also includes a water distributor 130 configured to distribute water received from the riser 114 onto the cellulose pad 128. As used herein, the term "water distributor" refers to a fluid delivery mechanism, such as a channel, manifold, or a series of perforated nozzles, arranged to ensure uniform distribution of water across the surface of the cellulose pad 128. The water distributor 130 is located at the upper edge of the pad and is configured to minimize oversaturated or dry zones by maintaining uniform coverage. Uniform water distribution improves evaporation efficiency and prevents material degradation due to uneven humidity loading.

[0053] In another embodiment, the cooling unit 106 also includes a water collection basin 132 configured to collect excess water flowing through the cellulose pad 128. As used herein, the term "water collection basin" refers to a lower water collection chamber located below the cellulose pad 128, designed to collect gravity runoff from the pad surface. The water collection basin 132 acts as an intermediate reservoir, directing the collected water into a return pipe 116 for recirculation back to the water tank 112. This feature supports water conservation, reduces waste, and maintains the integrity of the closed-loop system during extended use.

[0054] In one embodiment, the cellulose pad 128 is made of treated antifungal compressed cardboard or cellulose paper. As used herein, the term "treated antifungal compressed cardboard or cellulose paper" refers to a class of engineered fiber materials that have undergone chemical treatment or structural reinforcement to resist microbial growth and degradation caused by continuous moisture. This structure ensures that the cellulose pad 128 maintains its structural integrity and cooling efficiency during repeated use. By using materials that have undergone specialized antifungal and antimicrobial treatment, the system 100 is better suited for long-term operation in humid environments without frequent maintenance or replacement of the cooling medium.

[0055] In another implementation, each vent 110 is arranged at a 60-degree downward angle relative to the canopy 102. This specific angular orientation allows cooling air to be directed directly at the person seated at the table 104, while minimizing lateral airflow losses. The 60-degree vent angle optimizes air coverage for circular or semi-circular seating arrangements and ensures uniform cooling throughout the shaded area. This angular configuration is particularly effective in outdoor conditions where directional airflow can be affected by ambient winds.

[0056] In another embodiment, the fan (not shown) comprises blades made of reinforced plastic or lightweight aluminum. As used herein, "reinforced plastic" refers to a polymeric material strengthened with glass fiber or similar additives to improve mechanical durability, while "lightweight aluminum" refers to a low-mass aluminum alloy with a sufficient strength-to-weight ratio for efficient rotation. The lightweight nature of these two materials minimizes motor load, reduces energy consumption, and increases rotational speed to generate a stable airflow through the cooling unit 106. This improves the overall cooling performance of the system 100 while maintaining structural simplicity and material lifespan.

[0057] In one embodiment, motor 108 includes copper or aluminum coils, a stainless steel sheath, and a thermoplastic housing. As used herein, the term "copper or aluminum coils" refers to the internal windings of the motor that generate a magnetic field to drive a fan. Copper offers high conductivity and efficiency, while aluminum provides cost and weight advantages. The stainless steel sheath acts as a protective housing, resisting corrosion and mechanical stress during outdoor operation. The thermoplastic housing serves as insulation and structural enclosure for internal components. This combination of materials ensures durability, weather resistance, and stable electrical performance over long-term use.

[0058] In another embodiment, pump 118 is housed within a pump housing made of waterproof reinforced plastic. As used herein, the term "pump housing" refers to the structural enclosure that surrounds and protects pump 118 from external moisture, dust, and impact. The pump housing is designed to operate in damp or splash-prone environments, particularly considering its proximity to water tank 112. The use of reinforced plastic improves structural stability and resistance to long-term degradation, especially in outdoor or semi-permanent installations.

[0059] In another embodiment, pump 118 is connected to a pump motor, which includes copper or aluminum coils. As used herein, the term "pump motor" refers to a dedicated electric drive unit that powers pump 118 to lift water from tank 112 via riser 114 to cooling unit 106. By using either copper or aluminum coils, the pump motor ensures efficient energy transfer and maintains stable hydraulic performance. The choice between copper and aluminum materials allows for design flexibility, depending on cost, availability, and thermal management requirements.

[0060] In one embodiment, each of the riser 114 and return pipe 116 is made of reinforced plastic or stainless steel. As used herein, the term "reinforced plastic" refers to polymeric materials reinforced with additives such as glass fiber to improve tensile strength and durability. Stainless steel, on the other hand, offers corrosion resistance and long-term structural reliability. The use of these materials ensures that the riser 114 and return pipe 116 can withstand continuous exposure to water flow, pressure fluctuations, and environmental factors during prolonged outdoor use. This improves the overall service life and maintenance-free operation of the water circulation system.

[0061] In another implementation, PCB 120 is located outside the cooling unit 106. This spatial separation is designed to minimize the exposure of PCB 120 to internal humidity and heat buildup within the cooling unit. By isolating PCB 120 from the evaporation zone, the system ensures stable electronic control functions and protection from the risks of condensation, temperature variations, or splashing. Placing it outside the cooling unit also allows for easier access for maintenance, firmware updates, or external wiring integration without disassembling the main cooling components.

[0062] In another implementation, PCB 120 is communicatively connected to a control system that includes a wall-mounted control unit 134 and a remote controller 136. As used herein, the term "control system" refers to a combination of user interface devices that enable wireless or wired input to PCB 120 for actuating or configuring the operation of motor 108 and pump 118. The wall-mounted control unit 134 can be installed near the seating area for routine operation by field personnel, while the remote controller 136 allows for convenient actuation or adjustment from a distance. This configuration supports flexible and intuitive control, making the system suitable for dynamic outdoor environments where personnel access to core electronic equipment may be limited.

[0063] Reference Figure 2 A waterway 200 according to an embodiment of the present disclosure is shown (e.g., Figure 1 The diagram shows a perspective view of the water channels of a canopy-based outdoor cooling system 100. As shown, the water channels 200 include riser pipes 202 (such as...). Figure 1 The riser pipe 114 and the return pipe 204 (as shown in the image) Figure 1 The return pipe 116 is configured to transport water from the water tank to the cooling unit located above the canopy and then back.

[0064] In one example, the riser 202 has a length ranging from 1.5 meters to 3 meters, an outer diameter ranging from 10 centimeters to 20 centimeters, and a wall thickness ranging from 3 millimeters to 8 millimeters. These dimensions are selected based on the riser height and water flow rate required for effective cooling. In scenarios where a larger volume of water needs to be supplied to the cooling unit to rapidly saturate the cooling medium and thus improve thermal response under high-demand environments, a wider pipe diameter can be selected.

[0065] In another case, the riser 202 and the return pipe 204 are implemented with different cross-sectional geometries along their vertical length. For example, either pipe may taper towards its end to increase the water flow rate, or contain internal baffles to promote turbulence, thereby aiding in water precooling during transport through enhanced ambient heat exchange.

[0066] In another implementation, one or both of tubes 202 and 204 can be configured as a spiral or coiled profile wrapped around the vertical support column of the system. The coiled geometry increases the surface area exposed to ambient air, allowing for additional convective cooling of water as it enters and exits the elevated cooling unit. This design is particularly advantageous in hot, arid climates, as ambient air can be utilized to improve system efficiency without increasing energy input.

[0067] These geometric and dimensional variations enable the Water Channel 200 to support multiple operating modes while maintaining a closed-loop gravity-assisted recirculation flow, which improves cooling performance and reduces water and energy waste.

[0068] Now refer to Figure 3A , 3B 3C and 3C respectively show a water tank 300 according to an embodiment of the present disclosure (e.g., Figure 1 The water tank 300 is shown in perspective, front, and top views. As shown, the water tank 300 includes an inlet 302 and an outlet 304, each of which is configured to facilitate a closed-loop water circulation path between the water tank and the elevated cooling unit.

[0069] In one exemplary configuration, the water tank 300 has a footprint measuring approximately 800 mm by 800 mm and a height of approximately 700 mm. In practical applications, the dimensions can be selected from 600 mm to 1000 mm in width and 500 mm to 900 mm in height, depending on the required water storage capacity and available space under the table. The geometry of the water tank, which gradually narrows from a wider bottom to a slightly narrower top, provides structural stability while saving usable volume and allowing for efficient integration into the support base structure of the outdoor cooling system 100.

[0070] The inlet 302 is arranged along the upper part of the water tank and configured to pass through a return pipe (such as...). Figure 1 The return pipe 116 in the tank receives water returning from the cooling unit. This inlet can also serve as a port for manually adding water to the tank during maintenance operations. The outlet 304 is located at the bottom of the tank and is connected to the riser pipe (such as...) via pump 118. Figure 1 (The riser pipe 114 in the middle). The outlet is positioned below to ensure that the stored water is nearly fully utilized and to support continuous circulation.

[0071] In one scenario, the water tank 300 is made of rotationally molded polyethylene with internal ribs to resist deformation under hydraulic loads. In another variation, the water tank may include translucent or semi-transparent wall sections to visually indicate the water level to maintenance personnel. Another implementation may integrate internal baffles to reduce turbulence during pump operation, thereby preventing cavitation and improving the pump's long-term performance.

[0072] The design and size characteristics of the 300 water tank enable it to achieve robust, space-saving, and easy-to-maintain water storage within a compact base footprint, which is crucial for the reliable operation of canopy-based outdoor cooling systems.

[0073] Now refer to Figure 4A , 4B Figures 4C and 4C respectively show a perspective view, a front view, and a top view of a cooling unit support 400 according to an embodiment of the present disclosure. The cooling unit support 400 supports a cooling unit (such as...) Figure 1 The cooling unit 106 shown is located above the water tank for easy lifting and airflow distribution.

[0074] As shown in the embodiment, the cooling unit bracket 400 includes a plurality of vents 402 (e.g., Figure 1 The vent 402 is shown as vent 110. Each vent 402 is arranged on a corresponding side surface of the bracket to allow cooling air to be ejected downwards from the overhead cooling unit. In the depicted example, the bracket 400 is generally inverted pyramidal in shape, with a square base and four trapezoidal sides that taper downwards. A rectangular vent 402 is positioned on each of the four sides of the bracket, and the width of each vent is measured to be approximately 200 mm. In other embodiments, the width of the vents may be selected from 150 mm to 300 mm, depending on the required airflow capacity and cooling range.

[0075] Vent 402 is not limited to a rectangular geometry. In alternative embodiments, the vent can be circular, square, elliptical, or hexagonal, and may have fixed or adjustable louvers for dynamic airflow redirection. Furthermore, more than one vent 402 can be positioned on a single side of the bracket to increase throughput or enable multi-zone cooling modes. In larger variations of the bracket 400, such as a variant configured as an inverted octagonal pyramid shape, the structure may include up to eight sides, each with one or more vents 402. This configuration allows for a wider airflow distribution and can be optimized for circular or semi-circular group seating arrangements.

[0076] The bracket 400 also includes an internal air distribution plate located below the cooling units and above the drain pipes. This plate serves to evenly direct airflow to each vent 402 and prevent pressure differences between different ventilation paths. By separating the cooling units to avoid direct contact with the drain area and elevating them above the internal airflow distribution plate, the bracket 400 promotes balanced and uninterrupted air dispersion during operation.

[0077] The modular and geometrically flexible design of the cooling unit bracket 400 allows for customization based on seating arrangements, climate intensity, and installation space, while ensuring effective downward airflow and structural support for the elevated cooling unit.

[0078] Now refer to Figure 5A , 5B And 5C, wherein embodiments according to this disclosure (such as) are shown respectively. Figure 1 The figures show perspective, front, and top views of a canopy-based outdoor cooling system 100. These views illustrate the integration of cooling units, canopy, support columns, tables, and water tank structures into a single modular component intended for outdoor environments.

[0079] In the illustrated configuration, the total height of system 100 is approximately 3050 mm, and the canopy is mounted at a height of 1920 mm above the ground. Cooling units positioned at the top of the canopy add an additional 600 mm to the highest structure. The canopy itself is 2800 mm wide from top to bottom, providing ample shade coverage for people seated around the central table.

[0080] The table has a rounded top with a diameter of 1800 mm and is centrally supported above the water tank. (See previous reference.) Figure 3A , 3B The water tank, as described in 3C, is embedded in the bottom of the structure and, in addition to serving as a reservoir for the evaporative cooling cycle, also contributes to system stability. The table is positioned at a height of approximately 700 mm from the ground to match the ergonomic chair height for adult users.

[0081] System 100 also includes four foldable arms extending outward from the cooling unit, each supporting a portion of the canopy. These foldable arms facilitate easier transport and deployment of the unit, particularly in pop-up installations or mobile reception scenarios.

[0082] From the top view ( Figure 5C See, the canopy is shown as a square frame with a central circular cutout to accommodate the base of the cooling unit. This configuration allows downward airflow from the unit to be symmetrically distributed via angled vents mounted below the canopy, as shown in the previous reference. Figure 1 The described vent 110.

[0083] This integrated configuration of the canopy-based outdoor cooling system 100 enables efficient spatial organization and functional synergy between shade, seating, and cooling elements, offering comfort, aesthetics, and practicality in a compact footprint, making it suitable for cafes, event venues, parks, and other semi-open spaces.

[0084] Now refer to Figure 6 The figure illustrates an example operating scenario of the system 100 shown in FIG5 according to an embodiment of the present disclosure. As shown, multiple chairs are arranged around the canopy-based outdoor cooling system 100.

[0085] This arrangement allows people to sit comfortably in the shade while benefiting from directional airflow delivered downwards from the elevated cooling units. The centrally located vents, positioned below the canopy, allow cool air to be evenly distributed around the seating area, ensuring that all occupants receive consistent cooling regardless of their orientation.

[0086] This configuration is particularly suitable for outdoor cafes, restaurant terraces, resort lounges, or public seating areas where comfort and ambient temperature control play a crucial role in the user experience. By integrating cooling, shade, and seating into a single system, this setup provides a practical and aesthetically pleasing overall solution for enhancing outdoor thermal comfort in warm environments.

[0087] It is understood that all the above embodiments can be combined. The functions and steps performed by the various entities described in this disclosure are intended to show that the entities are suited to or configured to perform these functions and steps. Furthermore, the features of this disclosure can be readily combined in various configurations without departing from the scope of this disclosure as defined by the appended claims. Other aspects, advantages, features, and objects of this disclosure will become apparent when interpreted in conjunction with the appended claims, from the accompanying drawings and the detailed description of the illustrative embodiments.

[0088] The foregoing description of specific embodiments will fully reveal the general nature of the embodiments herein, so that others can readily modify and / or adapt these specific embodiments for various applications by applying present knowledge without departing from the general concept. Therefore, such modifications and adaptations should and are intended to be understood as being within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for description only and not for limitation. Therefore, although the embodiments herein are described as implementations, those skilled in the art will recognize that the embodiments herein can be implemented with modifications within the spirit and scope of the embodiments described herein.

[0089] The foregoing description and accompanying drawings illustrate the principles, embodiments, and operating modes of this invention. However, this invention should not be construed as limited to the specific embodiments discussed above. Those skilled in the art will understand other variations of the above embodiments.

[0090] Therefore, the above embodiments should be considered illustrative rather than restrictive. It should be understood that those skilled in the art can make modifications to these embodiments without departing from the scope of the present invention as defined by the following claims.

[0091] The terms "comprising," "containing," "including," "having," and their variations mean "including but not limited to," and indicate that the listed components are included, but other components are generally not excluded. These terms include "consisting of" and "mainly composed of."

[0092] The phrase "consistently of..." means that a composition or method may include additional ingredients and / or steps, but only if the additional ingredients and / or steps do not substantially alter the fundamental and novel characteristics of the composition or method.

[0093] The singular forms “a,” “a,” and “the” used herein may include plural forms unless the context clearly specifies otherwise. For example, the terms “a compound” or “at least one compound” may include a plurality of compounds, including mixtures thereof.

[0094] In this document, the term "exemplary" is used to mean "serving as an example, instance, or illustration." Any embodiment described as "exemplary" is not necessarily to be construed as superior to or excluding features from other embodiments.

[0095] In this document, the term "optionally" is used to mean "provided in some embodiments but not in others". Any particular embodiment of this disclosure may include multiple "optional" features unless these features conflict.

[0096] It should be understood that, for clarity, certain features of this disclosure described in the context of individual embodiments may also be provided in combination in a single embodiment. Conversely, for brevity, various features of this disclosure described in the context of a single embodiment may also be provided individually or in any suitable sub-combination or in a suitable manner in any other described embodiment of this disclosure. Certain features described in the context of various embodiments are not considered essential features of those embodiments unless the embodiments cannot be practiced without these elements.

[0097] While this disclosure has been described in conjunction with specific embodiments thereof, it will be apparent to those skilled in the art that many alternatives, modifications, and variations will be readily apparent. Therefore, this disclosure is intended to include all such alternatives, modifications, and variations that fall within the spirit and broad scope of this disclosure.

[0098] All publications, patents, and patent applications mentioned in this specification are incorporated herein by reference in their entirety to the same extent that each individual publication, patent, or patent application is specifically and individually represented and incorporated herein by reference. Furthermore, any reference cited or indicated in this application should not be construed as an admission that such reference is prior art to this disclosure. The use of section headings should not be construed as a necessary limitation.

Claims

1. An outdoor cooling system based on a canopy, characterized in that, The system includes: A canopy installed above the table; A cooling unit is disposed on the top of the canopy, wherein the cooling unit includes: a fan; and a motor connected to the fan, wherein the fan is configured to generate airflow; Multiple vents are provided below the canopy, each of which is operatively connected to the cooling unit; A water tank located beneath the table, wherein the water tank is configured to store water for the cooling unit; The waterway includes: a riser extending from the water tank to the cooling unit, wherein the riser is configured to lift water from the water tank toward the cooling unit; and a return pipe extending from the cooling unit back to the water tank, wherein the return pipe is configured to transfer excess water or condensate from the cooling unit back to the water tank for recirculation. A pump connected to the water tank and the riser pipe, wherein the pump is configured to pump water from the water tank via the riser pipe to the cooling unit for delivering cooling air from the vents to cool the area under the canopy and around the table; and A printed circuit board (PCB) is connected to each of the motor and the pump, wherein the PCB is configured to control the operation of the motor and the pump for delivering cooling air through the vent.

2. The system as described in claim 1, characterized in that, The angle of each vent can be adjusted from 30 to 90 degrees to direct cooling air from the canopy downwards to the table.

3. The system as described in claim 1, characterized in that, The cooling unit includes a housing made of UV-resistant plastic or lightweight, durable aluminum.

4. The system as described in claim 1, characterized in that, The cooling unit also includes an automatic drain valve connected to the return pipe, wherein the automatic drain valve is configured to discharge excess water or condensate from the cooling unit into the water tank.

5. The system as described in claim 1, characterized in that, The cooling unit also includes a dust filter, which is configured to filter dust from the air entering the cooling unit.

6. The system as described in claim 1, characterized in that, The cooling unit also includes a cellulose pad configured to retain moisture, wherein the cellulose pad promotes evaporative cooling of air passing through the cellulose pad.

7. The system as described in claim 6, characterized in that, The cooling unit also includes a water distributor configured to distribute water received from the riser pipe onto the cellulose pad.

8. The system as described in claim 6, characterized in that, The cooling unit also includes a water collection basin configured to collect excess water flowing through the cellulose pad.

9. The system as described in claim 6, characterized in that, The cellulose mat is made of the following materials: treated anti-mildew compressed cardboard or cellulose paper.

10. The system as claimed in claim 1, characterized in that, Each of the vents is positioned at a downward angle of 60 degrees relative to the canopy.

11. The system as claimed in claim 1, characterized in that, The fan includes blades made of reinforced plastic or lightweight aluminum.

12. The system as claimed in claim 1, characterized in that, The motor includes: Copper coil or aluminum coil; Stainless steel outer casing; and Thermoplastic housing.

13. The system as claimed in claim 1, characterized in that, The pump is housed in a pump casing made of waterproof reinforced plastic.

14. The system as claimed in claim 1, characterized in that, The pump is connected to a pump motor, wherein the pump motor comprises a copper coil or an aluminum coil.

15. The system as claimed in claim 1, characterized in that, Each of the riser tube and the return tube is made of reinforced plastic or stainless steel.

16. The system as claimed in claim 1, characterized in that, The printed circuit board is located outside the cooling unit.

17. The system as claimed in claim 1, characterized in that, The printed circuit board is communicatively connected to a control system, which includes a wall-mounted control unit and a remote controller.

Images