Anti-frosting central air conditioning heating air outlet guide structure

Abstract

The utility model discloses a kind of frost-preventing central air conditioning heating air outlet flow guide structure, belong to central air conditioning equipment technical field, including flow guide cover main body, flow guide vane, connecting mechanism and control mechanism, the connecting mechanism includes heating wire and be used for driving the vane drive motor of flow guide vane, the control mechanism includes humidity sensor and intelligent controller, the humidity sensor, heating wire and vane drive motor of intelligent controller electric connection humidity sensor, can be according to the humidity data of humidity sensor acquisition frost risk in real time judgment, and automatically control heating wire start heating to prevent flow guide vane surface from forming frost layer actively.The utility model is integrated by flow guide control and intelligent frost-preventing function, solve the problem that traditional air outlet is blocked due to frost and leads to heating efficiency unstable, realizes the active protection and automatic operation to equipment, compact structure, function composite, improve the heating stability of central air conditioning in humid and cold environment.

Description

Technical Field

[0001] This utility model relates to the field of central air conditioning equipment technology, and in particular to a central air conditioning heating air outlet guide structure that prevents frost formation. Background Technology

[0002] As an important device for regulating the indoor environment in modern buildings, the stable operation of central air conditioning systems in winter heating mode is crucial. In order to optimize indoor temperature distribution and improve comfort, central air conditioning heating air outlets are usually equipped with air guiding structures, such as grilles or blades, to guide the direction and angle of the warm air. These air guiding structures greatly improve the heating delivery efficiency and user experience.

[0003] However, in practical applications, especially in humid and cold climates or specific building environments, traditional central air conditioning heating vents reveal a problem that cannot be ignored. When the heating system operates intermittently or when there is a large temperature difference between indoors and outdoors, the temperature of the air outlet's guide vanes and surrounding metal components drops rapidly. If the indoor air humidity is high at this time, the water vapor in the air will directly sublimate on these surfaces below the freezing point, forming a frost layer. Over time, the frost layer will continue to thicken, gradually blocking the gaps in the air outlet, and in severe cases, it may even completely block the airflow channel.

[0004] This frosting phenomenon directly leads to a significant decrease in heating efficiency, making it impossible for the indoor temperature to reach the expected setting. At the same time, the obstructed airflow also increases the operating load of the air conditioner fan, not only consuming more electricity but also potentially shortening the equipment's lifespan. Currently, most solutions to this problem are passive and reactive. Users often only address the issue by manually defrosting or increasing the air conditioner's operating temperature after discovering poor heating performance. This approach is not only inconvenient but also lacks foresight and cannot fundamentally prevent the frosting problem. Existing air outlet deflectors are also generally single-function, focusing only on guiding airflow without integrating any active anti-frost functions.

[0005] Therefore, this utility model proposes a central air conditioning heating outlet airflow guiding structure to prevent frost formation and address the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems of existing anti-frost central air conditioning heating air outlet guide structures, such as their generally single function, susceptibility to frost buildup leading to air duct blockage in low-temperature and high-humidity environments, and lack of integrated intelligent anti-frost structure, this utility model aims to provide an improved anti-frost central air conditioning heating air outlet guide structure that can effectively solve the above problems.

[0007] This utility model provides a central air conditioning heating outlet air guide structure for preventing frost formation, including: an air guide cover body, and air guide blades rotatably disposed inside the air guide cover body; a connecting mechanism for fixing the air guide cover body to the central air conditioning heating outlet, and a control mechanism for realizing anti-frost control.

[0008] The connecting mechanism and the control mechanism work together to achieve both installation fixation and intelligent frost prevention.

[0009] Furthermore, the connection mechanism includes a connecting flange, a support frame, a blade drive motor, and a heating wire. The main body of the air guide is installed at the air outlet by fixing the connecting flange and the support frame with screws and nuts. The blade drive motor is connected to the air guide blades, and the heating wire is arranged in the surrounding area of ​​the air guide blades. The control mechanism includes a humidity sensor and an intelligent controller. The intelligent controller is electrically connected to the humidity sensor and the heating wire respectively to achieve the function of automatically controlling the heating wire to start heating in a timely manner according to the humidity data.

[0010] Preferably, the connecting mechanism is further provided with a sealing strip on the connecting flange, the sealing strip being used to seal the connection between the connecting flange and the central air conditioning heating air outlet.

[0011] Preferably, the anti-frost central air conditioning heating outlet air guide structure further includes an air guide cover shell, which is fitted outside the air guide cover body and together with the air guide cover body defines a complete airflow channel.

[0012] Preferably, the control mechanism further includes a fixing rod, and the control mechanism is fixed to the shroud body or the support frame by the fixing rod.

[0013] Preferably, the control mechanism further includes a temperature display screen, which is electrically connected to the intelligent controller and is used to display temperature information.

[0014] Preferably, the control mechanism further includes a button electrically connected to the intelligent controller for manually operating the flow guiding structure.

[0015] Preferably, the intelligent controller has a preset humidity threshold. When the humidity data collected by the humidity sensor reaches the humidity threshold, the intelligent controller drives the heating wire to work.

[0016] Preferably, the intelligent controller is also electrically connected to the blade drive motor, and is used to control the blade drive motor according to instructions to adjust the angle of the guide vanes.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting a humidity sensor to monitor the air humidity at the air outlet in real time, and using an intelligent controller to judge the risk of frost based on the humidity data, automatically controls the heating wire to actively heat the guide vanes. This solves the problem that existing central air conditioning heating air outlets are prone to frost layer condensation on the guide vanes in low temperature and high humidity environments, which leads to air duct blockage, reduced heating efficiency, and the need for manual intervention. It intelligently predicts and actively protects against the risk of frost, ensuring that the air outlet can still deliver warm air stably and smoothly in harsh environments, improving the reliability and automation level of heating.

[0019] 2. This utility model integrates adjustable guide vanes, a vane drive motor, a heating wire, and a control system including a humidity sensor and an intelligent controller into a single structure, forming a multifunctional guide shroud. This solves the problems of existing air outlet guide devices, which typically only guide airflow and cannot address frost issues, and lack intelligent and integrated solutions. While achieving precise airflow guidance, it also endows the device with the core function of intelligent anti-frost, making the entire structure compact, easy to install, and functionally coordinated, significantly improving the user experience and equipment efficiency during winter heating. Attached Figure Description

[0020] Figure 1 This is a perspective view of a central air conditioning heating outlet airflow guiding structure for preventing frost formation, as proposed in this utility model.

[0021] Figure 2 A partial structural exploded view of the connection mechanism of the anti-frost central air conditioning heating air outlet guide structure proposed in this utility model;

[0022] Figure 3 A partial view of the connection structure of the anti-frost central air conditioning heating air outlet guide structure proposed in this utility model;

[0023] Figure 4 This is a partial structural exploded view of the control mechanism of the air outlet guide structure for an anti-frost central air conditioning heating system proposed in this utility model.

[0024] Legend:

[0025] 1. Main body of the air deflector; 2. Connecting mechanism; 21. Connecting flange; 22. Air deflector blades; 23. Blade drive motor; 24. Heating wire; 25. Support frame; 26. Sealing strip; 27. Screw; 28. Nut; 3. Control mechanism; 31. Humidity sensor; 32. Fixing rod; 33. Intelligent controller; 34. Temperature display screen; 35. Button; 4. Air deflector shell. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Example:

[0028] Please refer to Figures 1 to 4 As shown, a frost-resistant central air conditioning heating outlet air guide structure comprises a connecting mechanism 2 serving as the installation and support base, an air guide body 1 fixedly connected to the connecting mechanism 2, and a control mechanism 3 for intelligent frost prevention. The connecting mechanism 2 includes a rectangular frame-shaped connecting flange 21. An annular groove is formed on the side of the connecting flange 21 facing the central air conditioning outlet, and a sealing strip 26 is embedded in the annular groove to form a tight airtight seal with the central air conditioning heating outlet during installation. The connecting mechanism 2 also includes a support frame 25 providing rigidity to the overall structure. The support frame 25 is firmly fixed to the connecting flange 21 by multiple sets of screws 27 and nuts 28, thus forming a stable mounting base. The air guide body 1... The body 1, as the core component forming the airflow channel, is fixedly installed on the support frame 25. The body 1 is also fitted with a guide hood shell 4. The guide hood shell 4 and the body 1 are engaged by edge snapping to form a complete and closed heating airflow channel. Inside the body 1, rotatable guide vanes 22 are arranged along the airflow direction. The connecting mechanism 2 also integrates a vane drive motor 23 and a heating wire 24. The vane drive motor 23 is fixed on the support frame 25, and its output shaft is connected to the rotating shaft of the guide vane 22 through a transmission link. The heating wire 24 is tightly arranged on the surface or edge of the guide vane 22 by wrapping or attaching. This constitutes a hardware basic framework that integrates installation and fixation, airflow guidance and active heating functions.

[0029] Please refer to Figure 1 and Figure 4The control mechanism 3 includes an intelligent controller 33, a humidity sensor 31, a temperature display screen 34, buttons 35, and a mounting rod 32. The intelligent controller 33 serves as the control core, integrating a microprocessor and memory to receive data, perform logical judgments, and transmit control commands. The humidity sensor 31 is fixed near the air outlet of the main body 1 of the air duct to directly monitor the humidity of the heating airflow about to come into contact with the outside cold air. The signal output terminal of the humidity sensor 31 is electrically connected to the signal input terminal of the intelligent controller 33, thereby transmitting the real-time collected humidity data to the intelligent controller 33. The intelligent controller 33 then controls the output... The outlet is electrically connected to the heating wire 24 and the blade drive motor 23 in the connecting mechanism 2, respectively. The intelligent controller 33 can analyze the data transmitted by the humidity sensor 31 according to the internal preset frost risk algorithm model and humidity threshold. Once it is determined that there is a risk of frost, it immediately outputs a power-on command to the heating wire 24 to make it heat up. At the same time, the intelligent controller 33 can also receive external commands or output control signals to the blade drive motor 23 according to the preset program to accurately adjust the rotation angle of the guide vane 22 and realize intelligent control of the air outlet direction. This closed-loop control structure of sensing, decision-making and execution ensures the initiative and intelligence of the anti-frost function.

[0030] For the human-computer interaction part, the temperature display screen 34 and the button 35 are both electrically connected to the intelligent controller 33. The temperature display screen 34 obtains the temperature data collected and processed by the temperature sensor (not shown in the figure) from the intelligent controller 33 through the data bus and displays it visually. The button 35 provides a manual intervention interface for users, allowing users to manually start or stop heating and switch operating modes. The entire control mechanism 3 is securely installed in an appropriate position on the guide shroud body 1 or the support frame 25 by the fixing rod 32, which is convenient for users to observe and operate.

[0031] As a preferred embodiment, to enhance the sealing effect of the installation and prevent warm air leakage from the connection, please refer to... Figure 2 and Figure 3 The connecting mechanism 2 has a specially designed sealing strip 26 on the connecting flange 21. The sealing strip 26 is made of EPDM rubber, which is resistant to aging and has good elasticity. It is completely embedded in the pre-cut annular groove on the connecting flange 21. When the connecting flange 21 is fastened to the central air conditioning heating outlet by screws 27 and nuts 28, the sealing strip 26 is squeezed and undergoes elastic deformation, thereby reliably filling any tiny gaps between the connecting flange 21 and the outlet surface, ensuring the overall airtightness of the airflow channel.

[0032] As another preferred embodiment, to form a more complete and concentrated airflow channel, please refer to... Figure 1A central air conditioning heating outlet airflow guiding structure for preventing frost also includes a guide shroud shell 4. The overall outline of the guide shroud shell 4 matches the guide shroud body 1 and is fitted onto the outside of the guide shroud body 1 with a slightly larger size. The guide shroud shell 4 and the guide shroud body 1 are fixedly connected by edge buckles or small fasteners. Together, they form a double-layer or reinforced stable air duct structure, which helps to guide airflow for directional delivery with less loss.

[0033] As a further preferred embodiment, to facilitate the user's installation and positioning of the control mechanism 3, please refer to... Figure 4 The control mechanism 3 is equipped with a fixing rod 32. One end of the fixing rod 32 is fixedly connected to the outer shell of the intelligent controller 33, and the other end is provided with a mounting hole or clamp structure, so that the entire control mechanism 3 can be easily fixed or clamped to any position that is easy to observe and operate, such as the main body 1 of the air guide, the outer shell 4 of the air guide, or the support frame 25, by screws, which improves the flexibility and convenience of installation.

[0034] For optimization of the human-computer interaction function of the control mechanism, please refer to Figure 4 The control mechanism 3 integrates a temperature display screen 34 and a button 35 on its panel. The temperature display screen 34 is preferably an LCD or digital tube display screen, which can intuitively display the current air outlet temperature in digital form. The button 35 is preferably a physical button with tactile feedback, which allows users to switch manual modes, such as forcibly starting heating or setting a specific angle of the guide vane 22, providing users with the necessary manual control permissions.

[0035] Working principle:

[0036] When the heating season begins, the entire airflow guiding structure is first installed and fixed to the heating air outlet of the central air conditioner via the connecting mechanism 2. The connecting flange 21, the support frame 25, the screws 27, and the nuts 28 work together to ensure the stability of the installation, while the sealing strip 26 ensures the seal at the connection point to prevent warm air leakage. When the central air conditioner starts to supply heating air, the warm airflow enters the airflow channel formed by the airflow guide body 1 and the airflow guide shell 4. At this time, the user can send a command to the intelligent controller 33 through the button 35 on the control mechanism 3 or the preset program. The intelligent controller 33 then controls the blade drive motor 23 to work. The blade drive motor 23 drives the airflow guide blades 22 to rotate around their own axis through its output shaft, thereby changing the angle and direction of the airflow and achieving precise adjustment of the indoor temperature distribution, directing the warm air to the required area. This is the basic airflow guiding process of the airflow guiding structure.

[0037] The anti-frost function of this invention is fully automatic. During the heating process, especially in environments with low outdoor temperatures and high indoor humidity, the humidity sensor 31 in the control mechanism 3 continuously monitors the relative humidity of the air flowing through the air outlet area and sends continuous humidity data signals to the intelligent controller 33. The internal microprocessor of the intelligent controller 33 compares and analyzes the received real-time humidity data with the internally stored frost risk model and preset humidity thresholds. This model may also combine temperature data obtained from the temperature sensor for comprehensive judgment. When the intelligent controller 33 determines that the current air outlet environmental conditions have reached or are close to the frost point, and there is an extremely high risk of frost, it will immediately and automatically execute the anti-frost program. The intelligent controller 33 will send an energizing command to the heating wire 24 arranged on the guide vanes 22. After receiving the current, the heating wire 24 quickly generates heat, which is then transferred through heat conduction. The method preheats or continuously heats the guide vanes 22 and surrounding metal components at low temperatures, ensuring that the surface temperature of the guide vanes 22 remains above freezing. This effectively prevents water vapor in the air from condensing on the vane surface, fundamentally preventing the formation of frost. Through this proactive and intelligent heating intervention, the air outlet channel remains unobstructed even under the most frosty conditions, guaranteeing the stability and efficiency of the heating airflow. Simultaneously, the temperature display screen 34 shows the current air outlet temperature to the user in real time, providing an intuitive understanding of the equipment's operating status. At any time, the user can also manually intervene via button 35, such as forcibly activating the heating function or switching to energy-saving mode. Through the coordinated operation of the aforementioned guide function and intelligent anti-frost function, this invention achieves a highly efficient, reliable, and intelligent central air conditioning heating and air outlet experience.

Claims

1. A frost-preventing airflow guide structure for a central air conditioning heating outlet, comprising: The main body of the fairing (1) and the guide vanes (22) rotatably disposed inside the main body of the fairing (1). Its features are, The airflow guiding structure also includes a connecting mechanism (2) for fixing the airflow guiding body (1) to the central air conditioning heating air outlet and a control mechanism (3) for achieving anti-frost control. The connecting mechanism (2) includes a connecting flange (21), a support frame (25), a blade drive motor (23), and a heating wire (24). The connecting flange (21) and the support frame (25) are fixedly connected by screws (27) and nuts (28). The main body (1) of the flow guide is fixed on the support frame (25). The blade drive motor (23) is used to drive the flow guide blade (22) to rotate. The heating wire (24) is arranged in the peripheral area of ​​the flow guide blade (22). The control mechanism (3) includes a humidity sensor (31) and an intelligent controller (33). The humidity sensor (31) is used to collect air humidity data around the air outlet. The intelligent controller (33) is electrically connected to the humidity sensor (31) and the heating wire (24) respectively, and controls the heating wire (24) to start heating in a timely manner according to the humidity data.

2. The anti-frost central air conditioning heating outlet airflow guiding structure according to claim 1, characterized in that, The connecting mechanism (2) is also provided with a sealing strip (26) on the connecting flange (21), which is used to seal the connection between the connecting flange (21) and the central air conditioning heating outlet.

3. The frost-preventing central air-conditioning heating air outlet flow guide structure according to claim 1, characterized in that, It also includes a shroud housing (4), which is fitted over the outside of the shroud body (1) and together with the shroud body (1) defines a complete airflow channel.

4. The frost-preventing central air-conditioning heating air outlet flow guide structure according to claim 1, characterized in that, The control mechanism (3) further includes a fixing rod (32), which is fixed to the main body (1) of the fairing or the support frame (25) by means of the fixing rod (32).

5. The frost-preventing central air-conditioning heating air outlet flow guide structure according to claim 4, characterized in that, The control mechanism (3) also includes a temperature display screen (34), which is electrically connected to the intelligent controller (33) and is used to display temperature information.

6. The frost-preventing central air-conditioning heating air outlet flow guide structure according to claim 4 or 5, characterized in that, The control mechanism (3) also includes a button (35), which is electrically connected to the intelligent controller (33) and is used to manually operate the flow guiding structure.

7. The anti-frost central air conditioning heating air outlet guide structure according to claim 1, characterized in that, The intelligent controller (33) has a preset humidity threshold. When the humidity data collected by the humidity sensor (31) reaches the humidity threshold, the intelligent controller (33) drives the heating wire (24) to work.

8. The frost-preventing central air-conditioning heating air outlet flow guide structure according to claim 1, characterized in that, The intelligent controller (33) is also electrically connected to the blade drive motor (23) and is used to control the rotation of the blade drive motor (23) according to the instructions to adjust the angle of the guide vane (22).

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