Central air conditioner cooling fan

Abstract

The utility model discloses a central air conditioning cold air blower, including the shell still including the controller of fixed connection on the shell, the air inlet and the air outlet of opening on the shell, the mesh enclosure of fixed connection at the air inlet, one end fixed connection at the elbow air pipe of air outlet. Through adopting " lower in upper out " layout, the air inlet is opened in the shell below, and the air outlet is above, when working, low pressure refrigerant in the evaporimeter evaporates and absorbs the heat around, and simultaneously cold air blower drive assembly drives air conditioner fan to rotate clockwise, and external air is filtered after the mesh enclosure at the air inlet and enters the shell inner chamber, and continues heat exchange with the evaporimeter, and the cold air after heat exchange is guided from the air deflector, and enters the elbow air pipe from the air outlet, and then cooperates the air supply unit and second drive assembly auxiliary delivery, and high -efficiently completes heat exchange and multi -region sends cold, improves target room cooling effect, satisfies multi -space synchronous temperature control demand, can enhance use comfort and cooling efficiency, reduces economic pressure.

Description

Technical Field

[0001] This utility model relates to the field of air cooler technology, specifically a central air conditioning air cooler. Background Technology

[0002] Central air conditioning evaporative air coolers, also known as evaporative air coolers or eco-friendly air conditioners, are air conditioning devices that achieve cooling based on the principle of water evaporation and heat absorption. Their core function is the continuous circulation of refrigerant within the system, including compression, condensation, throttling, and evaporation processes. In the evaporator, the low-pressure refrigerant evaporates, absorbing heat from the surrounding environment. Simultaneously, a fan in the indoor unit continuously draws indoor air into the evaporator fins for heat exchange, and the cooled air is then vented back into the room. This continuous circulation of indoor and outdoor air achieves the goal of lowering the temperature. Therefore, they are more suitable for factories, workshops, warehouses, outdoor work areas, large shopping malls, and other places where moderate cooling efficiency is required and energy conservation is sought. They are also suitable for homes, offices, factories, warehouses, and shopping malls. Smaller models are mainly used in homes, while larger models can be used in factories, mines, warehouses, or shopping malls.

[0003] In the current market, while central air conditioning can achieve temperature control in multiple spaces, it is generally expensive and consumes a significant amount of energy. Many families, even if they can afford it, often find themselves unable to afford the high electricity bills. If they don't choose central air conditioning, families with 3-4 separate rooms would need to install multiple individual air conditioners. However, if all the air conditioners are running simultaneously, the monthly electricity bill can be substantial. In this situation, users with better financial means can choose between central air conditioning or multiple individual air conditioners, but for ordinary people, not only is the purchase and operating cost of central air conditioning difficult to bear, but installing multiple individual air conditioners also presents a significant financial burden. Ultimately, they often have to compromise between "cooling needs" and "operating costs," which to some extent reduces the comfort and practicality of their living spaces. Utility Model Content

[0004] The purpose of this utility model is to provide a central air conditioning cooler to address the issues raised in the background art, namely, the high price and energy consumption of central air conditioning systems in the current market, making them unaffordable for many families; and the high electricity bills when multiple independent air conditioners are used simultaneously in households with 3-4 separate rooms. While users with good economic conditions can choose according to their needs, ordinary people cannot afford the costs of these two options and are forced to compromise between cooling requirements and operating costs, thus reducing the practicality and comfort of their homes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a central air conditioning evaporative cooler, comprising a housing, a controller fixedly connected to the housing, an air inlet and an air outlet opened on the housing, a mesh cover fixedly connected to the air inlet, an elbow duct fixedly connected at one end to the air outlet, an air supply unit installed on the elbow duct, a second drive assembly installed on the air supply unit, a water tank and a water guide plate fixedly connected inside the housing, an air guide plate and an evaporator fixedly connected inside the housing, an air conditioning fan rotatably connected at one end to the housing, and a evaporative cooler drive assembly installed inside the housing. By evaporating the refrigerant in the evaporator under low pressure, absorbing ambient heat, and simultaneously driving the air conditioning fan clockwise, external air is filtered through the mesh cover at the air inlet and enters the inner cavity of the housing. The clockwise airflow continuously draws external air into the evaporator for heat exchange, and the cooled air is guided by the air guide plate, finally exiting through the elbow duct for transport.

[0006] Based on the preferred embodiment of this technical solution, three sets of air outlets and elbow ducts are provided, and the three sets of air outlets and elbow ducts are distributed sequentially on the outer shell.

[0007] Based on the preferred embodiment of this technical solution, the evaporator is provided with several sets of fins, and the several sets of fins are symmetrically distributed on the evaporator.

[0008] Based on the preferred embodiment of this technical solution, the air cooler drive assembly includes a bearing installed inside the housing and a first motor fixedly connected inside the housing. The first motor is electrically connected to the controller. The other end of the air conditioner fan is installed on the bearing, and the end of the air conditioner fan away from the bearing is fixedly connected to the output end of the first motor. The first motor is used to drive the air conditioner fan to rotate clockwise.

[0009] Based on the preferred embodiment of this technical solution, the air supply unit includes a duct fan fixedly connected at one end to the other end of the elbow duct and a duct fixedly connected at the other end of the duct fan.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. With the air outlet located at the top of the casing and the air inlet at the bottom, the refrigerant in the evaporator, under low pressure, evaporates and absorbs heat from the surrounding environment. Simultaneously, the air cooler drive unit drives the air conditioner fan to rotate clockwise, allowing outside air to enter the inner cavity of the casing after being filtered through the mesh at the air inlet, continuously exchanging heat with the evaporator. The cooled air is then guided by the air guide plate, flowing from the air outlet into the elbow duct. With the assistance of the air supply unit and the second drive unit, heat exchange is efficiently completed and cool air is delivered to multiple areas, effectively improving the cooling effect of the target room, meeting the needs of simultaneous temperature control in multiple spaces, enhancing user comfort and cooling efficiency, and reducing economic burden.

[0011] 2. The connecting pipe in the air supply unit connects the elbow duct and the duct pipe, extending the cold air delivery path and allowing the cold air to cover a more distant target area. The support frame provides a stable installation position for the air supply fan, ensuring that the fan rotates stably in the connecting pipe. In conjunction with the second drive component, the air supply fan is driven to rotate, providing additional power for the flow of cold air in the connecting pipe and duct pipe, preventing the cold air from weakening due to excessive delivery distance, and ensuring that the distant area can also receive sufficient cold air. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of one embodiment of a central air conditioning cooler according to the present invention; Figure 2 This is a schematic diagram of the air conditioner fan structure of this utility model; Figure 3 This is a schematic diagram of the air cooler drive assembly of this utility model; Figure 4 This is a schematic diagram of the air supply unit structure of this utility model.

[0013] In the diagram: 1. Outer casing; 21. Air inlet; 22. Mesh cover; 23. Controller; 24. Air outlet; 25. Evaporator; 26. Water guide plate; 27. Water tank; 28. Air guide plate; 29. ​​First motor; 210. Bearing; 211. Air conditioning fan; 212. Elbow duct; 31. Duct fan; 32. Ductwork. Detailed Implementation

[0014] 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.

[0015] Implementable methods already discovered in this field: Driven by both the intensifying trend of global warming and the accelerated urbanization process, the demand for indoor space cooling has transformed from a traditional "comfort choice" to a "rigid demand" in production and daily life. As a core tool for maintaining a stable indoor thermal environment, air conditioning equipment has always focused on three core demands in its technological iteration and product upgrades: "energy efficiency, adaptability, and economy." From residential spaces to large commercial venues and industrial production workshops, different scenarios present different requirements for the cooling efficiency, operating costs, installation conditions, and environmental friendliness of cooling equipment. Residential users face a dilemma: traditional compressor-type central air conditioning has high purchase costs and high energy consumption, while multiple split-type independent air conditioners incur high electricity bills when run simultaneously. Ordinary people often find themselves in a dilemma of "being able to afford to buy but not afford to use" or "selecting cooling areas only as needed" due to economic pressure. In commercial and industrial scenarios, spaces such as factory workshops, warehouses, outdoor work areas, and large shopping malls are generally characterized by large areas, concentrated heat generation from people or equipment, moderate requirements for cooling efficiency, and sensitivity to energy consumption costs. Traditional air conditioning equipment either results in excessively high long-term operating costs due to high energy consumption or has a limited temperature control range that cannot cover large spaces. Ordinary fans can only achieve air circulation but cannot lower the temperature, while simple evaporative air coolers have limited cooling range and significant performance degradation in high humidity environments. Against this backdrop, central air conditioning evaporative air coolers (also known as evaporative air coolers or environmentally friendly air conditioners), which combine the environmentally friendly characteristics of "water evaporation heat absorption" with the high-efficiency cooling advantages of "refrigerant circulation," have emerged. With their lower energy consumption costs, wider temperature control range, and stronger environmental adaptability, they have gradually become an important technical solution for solving the cooling pain points of medium and large spaces and ordinary households. They fill the market gap between traditional high-energy-consuming air conditioners and inefficient cooling equipment, while also aligning with the policy guidance and market demand for green and energy-saving equipment under the global "dual carbon" goal.

[0016] Central air conditioning evaporative air coolers, as a new type of air conditioning equipment that integrates traditional evaporative cooling with modern refrigerant circulation technology, are positioned as "highly efficient and energy-saving with broad-spectrum adaptability." This distinguishes them from traditional compressor-type central air conditioning, split-type independent air conditioners, and ordinary evaporative air coolers, giving them unique technological attributes and product value. From a definitional perspective, the "central air conditioning" in its name reflects its ability to "simultaneously control temperature in multiple zones," delivering cool air to multiple independent spaces through a duct system, breaking the limitation of split-type air conditioners' "one unit, one zone." The "air cooler" emphasizes its characteristics of "low energy consumption and high air volume for large cooling," relying on the principle of water evaporation to absorb heat and reduce the intake air temperature, combined with a refrigerant circulation system to enhance heat exchange efficiency, avoiding the shortcoming of traditional air coolers where "cooling range depends on ambient humidity." The alternative names "evaporative air cooler" and "eco-friendly air conditioner" stem from the fact that it does not require... Using refrigerants such as Freon that pose a risk of damaging the ozone layer (or using environmentally friendly refrigerants), and with operating energy consumption only 1 / 3 to 1 / 8 of that of traditional compressor central air conditioning with the same cooling capacity, the hourly power consumption of a single unit is usually controlled at 0.5-1.5 kWh, far lower than the 1.2-3 kWh of split air conditioners. At the same time, it is accompanied by moderate air humidification during the cooling process (relative humidity increases by 5% to 15%), which can improve the air comfort in dry environments and avoid the indoor air dryness problem caused by long-term use of traditional air conditioners. In terms of technical positioning, central air conditioning evaporative coolers do not pursue "ultimate temperature control precision" (such as the ±0.5℃ temperature difference control required in laboratories and medical places), but focus on "medium-precision temperature control + high cost performance". The cooling temperature range can usually reduce the ambient temperature by 4-12℃, which can meet the cooling needs of most civil, commercial and industrial scenarios for "comfortable feeling". At the same time, its modular structural design makes its installation cost 30% to 50% lower than that of traditional central air conditioning, and it does not require complicated ceiling modification. It is suitable for new spaces and existing building renovation scenarios, further expanding its application boundaries and becoming a key equipment type connecting "basic cooling needs" and "high-efficiency energy-saving goals".

[0017] The core working principle of a central air conditioning evaporative cooler is the "synergistic effect of water evaporation heat absorption and refrigerant circulation". Through the complementarity of the two cooling mechanisms, it achieves "high-efficiency heat exchange with low energy consumption". Its technical logic revolves around three core links: "heat absorption - heat transfer - cold air delivery". Each link relies on specific components to operate in conjunction to form a complete refrigeration closed loop. From the core principle breakdown, the refrigerant cycle system operates in four stages: During compression, the compressor (usually integrated into the external unit or an independent chamber inside the casing) compresses the low-temperature, low-pressure gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant, providing power for subsequent heat transfer. In the condensation stage, the high-temperature, high-pressure gaseous refrigerant flows through the condenser (often using air or water cooling), exchanging heat with the external environment, releasing heat, and condensing into a medium-temperature, high-pressure liquid refrigerant. Subsequently, the throttling process begins, where the liquid refrigerant passes through a throttling valve (or capillary tube) to reduce pressure and transform into a low-temperature, low-pressure gas-liquid mixture, preparing for the next stage of heat absorption. Finally, in the evaporation stage, the low-temperature, low-pressure gas-liquid mixture enters the evaporator, exchanging heat with the surrounding air through the evaporator tube walls, absorbing heat from the air, and completely evaporating into a low-temperature, low-pressure gaseous refrigerant. After completing one cycle, it re-enters the compressor to begin the next heat transfer process. Based on refrigerant circulation, the water evaporation heat absorption principle further improves cooling efficiency through "auxiliary cooling + enhanced heat exchange": A water tank inside the equipment casing stores circulating water, and a water guide plate evenly directs the water to the evaporator surface or an independent wet curtain assembly, forming a water film. When the air cooler drive assembly drives the air conditioner fan to rotate clockwise, external air enters through the air inlet. After being filtered by a mesh cover, it first contacts the water film. The water molecules absorb some of the heat from the air during evaporation, achieving initial cooling. The initially cooled air continues to flow through the evaporator, undergoing a secondary heat exchange with the refrigerant evaporating and absorbing heat inside. The heat is further absorbed, and the air temperature drops significantly. Simultaneously, several sets of symmetrically distributed fins on the evaporator greatly increase the contact area between the air and the evaporator, extending the heat exchange time and ensuring that the heat in the air is fully absorbed, avoiding the problem of "insufficient heat exchange due to excessively fast airflow." The synergistic effect of the two cooling mechanisms not only makes up for the shortcomings of single water evaporation heat absorption, which has "limited cooling range and dependence on ambient humidity", but also reduces the defects of single refrigerant cycle, which has "high energy consumption and high compression power requirements". Ultimately, it achieves the technical goal of "low energy consumption output of high air volume cold air" and lays the foundation for subsequent multi-regional delivery.

[0018] Please see Figure 1-4This utility model provides an embodiment of a central air conditioning evaporative cooler, comprising a housing 1, a controller 23 fixedly connected to the housing 1, an air inlet 21 and an air outlet 24 opened on the housing 1, a mesh cover 22 fixedly connected to the air inlet 21, an elbow duct 212 fixedly connected at one end to the air outlet 24, an air supply unit installed on the elbow duct 212, a second drive assembly installed on the air supply unit, a water tank 27 and a water guide plate 26 fixedly connected inside the housing 1, an air guide plate 28 and an evaporator 25 fixedly connected inside the housing 1, an air conditioning fan 211 rotatably connected at one end to the housing 1, and a cooler drive assembly installed inside the housing 1. By evaporating the refrigerant in the evaporator 25 under low pressure to absorb ambient heat, and simultaneously driving the air conditioning fan 211 clockwise, external air is filtered through the mesh cover 22 at the air inlet 21 and enters the inner cavity of the housing 1. The system uses a clockwise airflow to continuously draw outside air into the evaporator 25 for heat exchange. The cooled air is then guided by the air guide plate 28 and finally enters the elbow duct 212 through the air outlet 24 for delivery. The air outlet 24 is located above the outer casing 1, and the air inlet 21 is located below the outer casing 1. This allows the refrigerant in the evaporator 25 to evaporate and absorb heat from the surrounding environment. At the same time, the air cooler drive component drives the air conditioner fan 211 to rotate clockwise, causing outside air to enter the inner cavity of the outer casing 1 after being filtered by the mesh cover 22 at the air inlet 21, continuously exchanging heat with the evaporator 25. The air guide plate 28 then guides the cooled air from the air outlet 24 into the elbow duct 212. With the assistance of the air supply unit and the second drive component, heat exchange can be efficiently completed and cooled air can be delivered to multiple areas, effectively improving the cooling effect of the target room, meeting the needs of simultaneous temperature control in multiple spaces, enhancing user comfort and cooling efficiency, and reducing economic burden.

[0019] Please see Figure 1 A further solution based on this embodiment is as follows: three sets of air outlets 24 and elbow ducts 212 are provided. The three sets of air outlets 24 and elbow ducts 212 are distributed sequentially on the outer shell 1. By setting the air outlets 24 and elbow ducts 212 into three sets and distributing them sequentially on the outer shell 1, cooled air can be delivered to three different areas at the same time. This breaks the limitation that a single set of air outlets 24 and ducts can only cover a single area, expands the temperature control range of the central air conditioning cooler, allows multiple independent rooms or spaces to obtain cool air simultaneously, improves the uniformity and coverage efficiency of overall cooling, and better adapts to multi-space usage scenarios.

[0020] Please see Figure 2A further solution based on this embodiment is as follows: several sets of fins are provided on the evaporator 25, and the several sets of fins are symmetrically distributed on the evaporator 25. By providing several sets of symmetrically distributed fins on the evaporator 25, the contact area between the evaporator 25 and the air can be greatly increased. When the outside air flows through the evaporator 25, it can fully contact the fins, allowing the heat in the air to be absorbed more efficiently by the refrigerant evaporating at low pressure in the evaporator 25, accelerating the heat exchange rate, shortening the cold air generation time, thereby improving the overall cooling efficiency of the central air conditioning evaporator and achieving faster cooling of the target area.

[0021] Please see Figure 3 A further solution based on this embodiment is as follows: The air cooler drive assembly includes a bearing 210 installed inside the housing 1 and a first motor 29 fixedly connected inside the housing 1. The first motor 29 is electrically connected to the controller 23. The other end of the air conditioner fan 211 is installed on the bearing 210. The end of the air conditioner fan 211 away from the bearing 210 is fixedly connected to the output end of the first motor 29. The first motor 29 is used to drive the air conditioner fan 211 to rotate clockwise. The bearing 210 in the air cooler drive assembly supports one end of the air conditioner fan 211, reducing the frictional resistance when the fan rotates, making the fan rotate more smoothly and stably. At the same time, the first motor 29 provides continuous power to the air conditioner fan 211, ensuring that the fan can rotate stably clockwise to form a continuous airflow. The electrical connection between the first motor 29 and the controller 23 ensures the synchronization of operation, avoiding interruption of air intake or insufficient airflow due to unstable fan rotation, and ensuring the continuous operation of the air filtration and heat exchange process.

[0022] Please see Figure 4 A further solution based on this embodiment is as follows: the air supply unit includes a duct fan 31 fixedly connected at one end to the other end of the elbow duct 212 and a duct pipe 32 fixedly connected at the other end of the duct fan 31. The duct fan 31 provides additional power for the flow of cold air in the connecting pipe and the duct pipe 32, so as to avoid the cold air weakening due to the long delivery distance and ensure that the distant area can also obtain sufficient cold air.

[0023] Working principle: First, the device is started via controller 23 on the outer casing 1. Controller 23 synchronously establishes an electrical connection with the first motor 29 of the air cooler drive assembly for coordinated operation. The first motor 29 then drives the air conditioner fan 211 (one end of which is supported by a bearing 210 inside the outer casing 1 to reduce rotational friction resistance) to rotate clockwise, creating a negative pressure inside the outer casing 1. This causes external air to enter through the air inlet 21 at the bottom of the outer casing 1, and after being filtered by the mesh cover 22 at the air inlet 21, it enters the interior of the outer casing 1. At the same time, in the evaporator 25 inside the outer casing 1, the refrigerant evaporates under low pressure and absorbs surrounding heat. Furthermore, the several sets of symmetrically distributed fins on the evaporator 25 significantly increase the contact area with the air, allowing the incoming air to interact with the evaporator. The generator 25 performs full heat exchange, quickly converting the air into cold air. Subsequently, two sets of air guide plates 28 on both sides of the air outlet 24 inside the outer shell 1 guide the cold air to avoid airflow turbulence and smoothly guide the cold air to the air outlet 24 above the outer shell 1. The cold air then enters the three sets of elbow ducts 212 connected to the air outlet 24. At this time, the cold air enters the duct fan 31 through the elbow duct 212, driving the duct fan 31 in the air supply unit to provide additional delivery power for the cold air. The cold air is then delivered to multiple target areas through the duct 32 at the other end of the duct fan 31. During this period, the water tank 27 and water guide plate 26 inside the outer shell 1 maintain stable operating conditions inside the equipment (such as receiving and guiding condensate), ultimately achieving efficient cooling in multiple areas and meeting the needs of simultaneous temperature control in multiple spaces.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A central air conditioning cooler, comprising a housing (1), characterized in that: It also includes a controller (23) fixedly connected to the outer casing (1), an air inlet (21) and an air outlet (24) opened on the outer casing (1), a mesh cover (22) fixedly connected to the air inlet (21), an elbow duct (212) fixedly connected to the air outlet (24) at one end, an air supply unit installed on the elbow duct (212), a second drive assembly installed on the air supply unit, a water tank (27) and a water guide plate (26) fixedly connected inside the outer casing (1), an air guide plate (28) and an evaporator (25) fixedly connected inside the outer casing (1), and an air conditioning fan rotatably connected to the outer casing (1) at one end. (211) and the air cooler drive assembly installed inside the housing (1) absorb the surrounding heat by evaporating the refrigerant in the evaporator (25) under low pressure. At the same time, the air cooler drive assembly drives the air conditioner fan (211) to rotate clockwise, thereby filtering the outside air from the mesh cover (22) at the air inlet (21) and entering the inner cavity of the housing (1). The outside air is continuously brought into the evaporator (25) for heat exchange through the clockwise airflow, and the cooled gas after heat exchange is guided by the air guide plate (28) and finally the air outlet (24) enters the elbow duct (212) for transportation.

2. A central air conditioning cooler according to claim 1, characterized in that: There are three sets of air outlets (24) and elbow ducts (212), and the three sets of air outlets (24) and elbow ducts (212) are distributed on the outer shell (1) in sequence.

3. A central air conditioning cooler according to claim 1, characterized in that: The evaporator (25) is provided with several sets of fins, and the several sets of fins are symmetrically distributed on the evaporator (25).

4. A central air conditioning cooler according to claim 1, characterized in that: The air cooler drive assembly includes a bearing (210) installed inside the housing (1) and a first motor (29) fixedly connected inside the housing (1). The first motor (29) is electrically connected to the controller (23). The other end of the air conditioner fan (211) is installed on the bearing (210). The end of the air conditioner fan (211) away from the bearing (210) is fixedly connected to the output end of the first motor (29). The first motor (29) is used to drive the air conditioner fan (211) to rotate clockwise.

5. A central air conditioning cooler according to claim 1, characterized in that: The air supply unit includes a duct fan (31) fixedly connected at one end to the other end of the elbow duct (212) and a duct pipe (32) fixedly connected at the other end of the duct fan (31).

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