Terminal fan coil

Abstract

The utility model discloses a kind of end fan-coil units, including fan-coil unit host computer;Condensate tray, be equipped in the below of fan-coil unit host computer, for collecting and temporarily storing condensate separated in the heat exchange process of fan-coil unit host computer;Water-permeable partition, be equipped between fan-coil unit host computer and condensate tray, for filtering condensate separated by fan-coil unit host computer;Atomizer, integrated installation is in condensate tray or its side wall, and it is communicated with condensate tray, for condensate collected by condensate tray is reintroduced into air supply airflow after atomization.The utility model is added atomizer, make condensate generated by fan-coil unit after converging to condensate tray, by atomizer fast atomization processing, water vapor after atomization evenly drifts with the air supply airflow of fan-coil unit;The design does not need to additionally lay out condensate pipeline, avoid condensate overflow failure caused by pipeline blockage, installation inclination angle insufficient and other problems from root, simplify installation process and reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of terminal devices for air conditioning systems, and more specifically, to a terminal fan coil unit. Background Technology

[0002] Fan coil units are typically used as terminal devices in an air conditioning system to provide a comfortable indoor air environment. Their core components include the fan coil unit itself and the condensate pan below. When the fan coil unit is running, the low-temperature refrigerant inside the coil exchanges heat with the hot and humid indoor air. Water vapor in the air condenses into liquid water on the surface of the coil upon encountering the cooling effect, dripping into the condensate pan below and then being discharged into the building's drainage system through a gravity drain pipe.

[0003] If, during the installation of a fan coil unit, the condensate drain pipe has an insufficient slope, is clogged with scale or foreign objects, or the drain outlet is higher than the overflow outlet of the condensate tray, the condensate will not be able to drain by gravity. In addition, poor sealing of the drain pipe joints, aging of the rubber rings, or loose connections can easily cause leaks. If the unit itself is not installed horizontally, causing the condensate tray to tilt and the local water level to be too high, exceeding the overflow edge, condensate will also overflow.

[0004] A terminal fan coil unit is now needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a terminal fan coil unit that overcomes the aforementioned defects in the prior art.

[0006] The technical solution to achieve the purpose of this utility model is: a terminal fan coil unit, comprising:

[0007] Fan coil unit main unit, which performs heat exchange treatment on air;

[0008] A condensate pan is located below the fan coil unit and is used to collect and temporarily store the condensate that is released during the heat exchange process of the fan coil unit.

[0009] A permeable barrier is provided between the fan coil unit and the condensate pan to filter the condensate from the fan coil unit and prevent impurities from entering the condensate pan.

[0010] An atomizer is integrated into or connected to the condensate pan and is used to atomize the condensate collected in the condensate pan and reintroduce it into the airflow.

[0011] In a preferred embodiment, the condensate tray is tilted, and the atomizer is integrated and installed on the lower side of the condensate tray, so that the condensate naturally collects to the inlet of the atomizer under the action of gravity.

[0012] In a preferred embodiment, the atomizer includes a piezoelectric ceramic and a stainless steel vibrator, which are bonded together; the stainless steel vibrator has a micropore array in its central region; and a water suction tube is provided at the bottom of the stainless steel vibrator, with the bottom of the micropore array connected to the water suction tube.

[0013] In a preferred embodiment, the pore size of the micropores in the micropore array decreases from bottom to top to improve capillary action and atomization efficiency.

[0014] In a preferred embodiment, multiple atomizers are provided, all of which are located on the lower side of the condensate pan.

[0015] In a preferred embodiment, an atomizing controller is fixedly installed at the bottom of the condensate pan, and multiple atomizers are electrically connected to the atomizing controller to control the opening and closing of the multiple atomizers.

[0016] In a preferred embodiment, the condensate pan is further provided with a water level sensor, which is electrically connected to the atomization controller to monitor the water level in the condensate pan in real time and feed the signal back to the atomization controller.

[0017] In a preferred embodiment, the water level sensor is disposed on the side wall of the lower side of the condensate pan.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] (1) By adding an atomizer, the condensate generated by the fan coil unit is quickly atomized after it is collected in the condensate pan. The atomized water vapor is evenly dispersed with the airflow of the fan coil unit. This design does not require additional condensate pipes, which avoids condensate overflow caused by pipe blockage, insufficient installation angle, etc., from the root cause. It simplifies the installation process and reduces maintenance costs.

[0020] (2) By configuring a permeable partition, the condensate is filtered and purified by the partition before dripping into the condensate pan to remove impurities in the water and then atomized by the atomizer. The clean water vapor after atomization passes through the permeable partition and is steadily dispersed with the airflow, which not only ensures the atomization effect, but also prevents impurities from clogging the atomizer and improves the stability of equipment operation.

[0021] (3) The condensate tray of this utility model adopts an inclined design and the atomizer is arranged on the low side, so that the condensate naturally gathers to the atomizer inlet under the action of gravity; combined with the stainless steel vibrating plate with a "large at the bottom and small at the top" conical structure of the micropore array, the capillary water supply capacity and atomization efficiency are significantly enhanced.

[0022] (4) This utility model is equipped with multiple atomizers and centrally managed by a unified atomization controller. It can dynamically start and stop some atomization units according to the actual condensate volume, realize on-demand atomization, improve the flexibility and reliability of equipment operation, and extend the service life of core components.

[0023] (5) This utility model installs a water level sensor on the low side wall of the condensate pan to monitor the water level in the pan in real time and feeds the signal back to the atomization controller, thereby realizing the closed-loop control logic of "starting at high water level and stopping at low water level", effectively preventing overflow or no-load operation, and ensuring the safe, stable and unattended operation of the system. Attached Figure Description

[0024] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0025] Figure 1 This is a perspective view of the present invention.

[0026] Figure 2 This is a 3D view of the condensate drain pan.

[0027] Figure 3 This is a 3D view of the condensate drain pan.

[0028] Figure 4 This is a 3D view of the atomizer.

[0029] Figure 5 This is a 3D view of the atomizer.

[0030] The labels in the attached diagram are as follows: 1. Fan coil unit main unit; 2. Condensate pan; 3. Permeable partition; 4. Atomizer; 4-1. Piezoelectric ceramic; 4-2. Stainless steel vibrating plate; 4-3. Micropore array; 4-4. Water suction pipe; 5. Atomization controller; 6. Water level sensor. Detailed Implementation

[0031] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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 some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.

[0037] Example 1: This example provides a terminal fan coil unit, which aims to solve the problems of easy blockage, overflow, and difficult maintenance of condensate discharge in traditional fan coil systems, while realizing the on-site resource utilization of condensate and improving system energy efficiency and operational reliability.

[0038] See Figure 1 and Figure 2The terminal fan coil unit includes a fan coil unit 1, a condensate pan 2, a permeable partition 3, and an atomizer 4. The fan coil unit 1 is used for heat and moisture exchange with the indoor return air, condensing moisture from the air under cooling conditions. The condensate pan 2 is located directly below the unit to collect and temporarily store the condensate. The permeable partition 3, made of hydrophilic porous material, is positioned between the unit and the condensate pan and effectively intercepts dust, microorganisms, and other impurities carried in the condensate dripping from the coil surface, preventing contaminants from entering the condensate pan and causing blockages or bacterial growth. The atomizer 4 is integrated into the condensate pan 2 or its side wall and is connected to the water in the pan. It atomizes the collected condensate into micron-sized water mist using ultrasonic waves and reintroduces it into the indoor environment with the airflow, achieving water evaporation and reuse.

[0039] To optimize the efficiency of condensate collection, the condensate pan 2 is arranged at an angle with a drainage slope of not less than 1%, ensuring that the condensate flows naturally to the lower area under the action of gravity. The atomizers 4 are centrally installed on this lower side, so that the water inlet is always at the lowest water level, ensuring a stable water supply and avoiding atomization interruption due to insufficient water accumulation in some areas.

[0040] Specifically, please see Figure 3 , Figure 4 and Figure 5 The atomizer 4 employs an ultrasonic atomization structure, comprising a piezoelectric ceramic 4-1 and a stainless steel vibrator 4-2, which are bonded together with high-strength thermally conductive adhesive to form a resonant assembly. The central region of the stainless steel vibrator 4-2 features a micropore array 4-3, with the micropores exhibiting a conical, converging structure and decreasing diameter from bottom to top, significantly enhancing capillary water absorption and atomization efficiency. A water suction pipe 4-4 is connected to the bottom of the vibrator, which is connected to the bottom of the condensate tray 2, ensuring a continuous supply of condensate to the atomization chamber.

[0041] To further enhance system adaptability and operational stability, this embodiment features multiple atomizers 4 positioned on the lower side of the condensate pan 2, with a dedicated atomization controller 5 fixedly installed at the bottom of the pan. All atomizers 4 are electrically connected to the atomization controller 5, allowing for dynamic start-up and shutdown of certain units based on actual condensate volume, achieving on-demand atomization and preventing energy waste. Simultaneously, a high-precision water level sensor 6 is installed on the lower side wall of the condensate pan 2 to monitor the liquid level in real time and feed the signal back to the atomization controller 5. When the water level reaches the set upper limit, the controller automatically starts the atomizer; when the water level drops to the safe lower limit, it automatically shuts off the atomizer to prevent dry burning and damage, forming a closed-loop intelligent control logic.

[0042] The working principle of this embodiment is as follows:

[0043] When a fan coil unit is running, directional air pressure is generated around its main unit, causing the surrounding airflow to flow in one direction.

[0044] The condensate produced during the operation of the device will condense and collect along the outer casing of the device, eventually dripping into the condensate tray below. After dripping, the condensate first passes through a permeable barrier, where impurities in the water are effectively filtered out; the filtered condensate then flows naturally towards the area where the atomizer is located, thanks to the inclined installation design of the condensate tray.

[0045] When the water inlet tube at the bottom of the atomizer comes into contact with condensate, it draws the water into the atomizer through capillary action. The piezoelectric ceramic then vibrates, atomizing the condensate into tiny water mists. A water level sensor monitors the water level in the condensate pan in real time and sends the signal back to the atomizer controller, enabling automatic start and stop of the atomizer and intelligent control of the entire condensate atomization process.

[0046] The atomized clean water mist passes through the permeable partition and floats out of the condensate pan. Driven by the negative pressure airflow formed at the bottom of the fan coil unit, it is smoothly dispersed into the terminal environmental space.

[0047] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A terminal fan coil unit, characterized in that, include, Fan coil unit (1) performs heat exchange treatment on air; A condensate pan (2) is located below the fan coil unit (1) and is used to collect and temporarily store the condensate that is released during the heat exchange process of the fan coil unit (1). A permeable partition (3) is provided between the fan coil unit (1) and the condensate pan (2) to filter the condensate precipitated by the fan coil unit (1) and prevent impurities from entering the condensate pan (2). Atomizer (4) is integrated into the condensate pan (2) or its side wall and communicates with the condensate pan (2) to atomize the condensate collected by the condensate pan (2) and reintroduce it into the airflow.

2. A terminal fan coil unit according to claim 1, characterized in that, The condensate pan (2) is tilted, and the atomizer (4) is integrated and installed on the lower side of the condensate pan (2), so that the condensate naturally collects to the inlet of the atomizer (4) under the action of gravity.

3. A terminal fan coil unit according to claim 2, characterized in that, The atomizer (4) includes a piezoelectric ceramic (4-1) and a stainless steel vibrator (4-2), which are bonded together. The stainless steel vibrator (4-2) has a micropore array (4-3) in its central area. The bottom of the stainless steel vibrator (4-2) has a water suction pipe (4-4), and the bottom of the micropore array (4-3) is connected to the water suction pipe (4-4).

4. A terminal fan coil unit according to claim 3, characterized in that, The pore size of the micropores in the micropore array (4-3) decreases from bottom to top.

5. A terminal fan coil unit according to claim 3, characterized in that, Multiple atomizers (4) are provided, all of which are located on the lower side of the condensate pan (2).

6. A terminal fan coil unit according to claim 5, characterized in that, The bottom of the condensate pan (2) is fixedly installed with an atomizing controller (5), and the multiple atomizers (4) are electrically connected to the atomizing controller (5) to control the opening and closing of the multiple atomizers (4).

7. A terminal fan coil unit according to claim 6, characterized in that, The condensate pan (2) is also equipped with a water level sensor (6), which is electrically connected to the atomizing controller (5) to monitor the water level in the condensate pan (2) in real time and feed the signal back to the atomizing controller (5).

8. A terminal fan coil unit according to claim 7, characterized in that, The water level sensor (6) is installed on the side wall of the lower side of the condensate pan (2).

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