Uniform air guide and heat exchange structure of fan coil
By incorporating inclined air guide vanes and mounting slots at the air outlet of the fan coil unit, the problem of uneven airflow on the fan coil unit is solved, resulting in better heat exchange and temperature regulation.
Patent Information
- Application Number
- CN202423034086.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing fan coil unit has uneven airflow on its windward side, which makes it difficult for the top and bottom ends of the coil to be blown by the wind, thus reducing the heat exchange effect.
An air guide is installed at the air outlet of the fan, and several downward-sloping air guide vanes are provided on the air guide. The angle between the air guide vanes and the motor plate gradually increases, and the air guide vanes are installed through the mounting slot to ensure that the air is blown evenly to the coil body.
This achieves uniform air distribution on the windward side of the coil body, improving heat exchange efficiency and indoor temperature regulation.
Smart Images

Figure CN223768982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan coil unit technology, and in particular to a structure for uniform airflow and heat exchange in a fan coil unit. Background Technology
[0002] Fan coil units are common terminal devices in central air conditioning systems. They use fans to circulate indoor air through heat exchangers, regulating indoor temperature. The fan cools or heats indoor or outdoor air mixed with it before delivering it into the room, lowering or raising the indoor temperature to meet people's comfort requirements. However, in actual use, existing fan coil units often lack air guiding structures. The fan usually blows air directly onto the windward side of the coil, resulting in uneven airflow on the windward side. The top and bottom ends of the coil are not easily reached by the airflow, thus reducing the heat exchange efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a structure for uniform airflow and heat exchange in a fan coil unit, aiming to solve the technical problem in the prior art where the windward side of the coil is not uniformly exposed to airflow, and the upper and lower ends of the coil are difficult to be blown by the wind, thereby reducing the heat exchange effect.
[0004] To achieve the above objectives, this utility model provides a structure for uniform airflow and heat exchange in a fan coil unit, including a fan and a coil unit. A motor plate is connected to the air outlet of the fan, and the other side of the motor plate is fixedly installed with the coil unit. An air guide port is provided on the motor plate at the air outlet of the fan, and a plurality of air guide vanes are provided on the air guide port. Each air guide vane is inclined downward, and the angle between each air guide vane and the motor plate gradually increases from bottom to top.
[0005] Preferably, the air guide is provided with mounting strips on both sides, and the mounting strips are provided with a plurality of mounting grooves, each of which is used to install the respective air guide plate.
[0006] Preferably, the included angle between the air guide vane and the motor plate is in the range of 44° to 82°.
[0007] Preferably, the coil unit is provided with a coil body and a first air guide plate. One side of the first air guide plate is fixedly installed with the motor plate, and the other side is inclined downward and connected to the bottom of the coil unit.
[0008] Preferably, the coil unit has an air outlet on its outer side, and a second air guide plate is provided at the bottom of the air outlet, the second air guide plate extending towards the bottom of the coil unit.
[0009] The above-mentioned technical solutions in the fan coil unit uniform airflow and heat exchange structure provided in this embodiment of the utility model have at least one of the following technical effects:
[0010] When the air conditioner is turned on, the coils in the unit cool the air, and the fan blows the cold air out of the unit to achieve the cooling effect in the room. When the fan blows air into the unit, the air enters the air duct through the fan's outlet and is guided and distributed by the various air guide vanes in the air duct. Since the angle between the air guide vanes and the motor plate gradually increases from bottom to top, the air can be blown evenly onto the coil body, ensuring that the windward side of the coil body receives uniform airflow. Attached Figure Description
[0011] Figure 1 A schematic diagram of the overall structure of the fan coil unit for uniform airflow and heat exchange provided in this embodiment of the utility model;
[0012] Figure 2 A cross-sectional view of the structure of the fan coil unit for uniform airflow and heat exchange provided in the embodiment of this utility model;
[0013] Figure 3 A schematic diagram showing the tilt angle between the air guide vanes and the motor plate in the fan coil unit uniform airflow and heat exchange structure provided in this embodiment of the utility model.
[0014] The following are the labeling elements in the figure:
[0015] 1-Fan, 2-Coil unit, 21-Coil body, 22-First air guide plate, 23-Second air guide plate, 3-Motor plate, 31-Air outlet, 32-Air guide vane, 33-Mounting strip, 331-Mounting groove. Detailed Implementation
[0016] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.
[0017] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element 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.
[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0019] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0020] In one embodiment of this utility model, such as Figures 1-3 As shown, a structure for uniform airflow and heat exchange in a fan coil unit is provided, characterized in that: it includes a fan 1 and a coil unit 2, the air outlet of the fan 1 is connected to a motor plate 3, the other side of the motor plate 3 is fixedly installed to the coil unit 2, the motor plate 3 has an air guide port 31 at the air outlet of the fan 1, the air guide port 31 is provided with a plurality of air guide vanes 32, each of the air guide vanes 32 is inclined downward, and the angle between each air guide vane 32 and the motor plate 3 gradually increases from bottom to top.
[0021] Furthermore, mounting strips 33 are provided on both sides of the air guide 31, and the mounting strips 33 are provided with a plurality of mounting grooves 331, each of which is used to install the respective air guide vane 32. Specifically, the angle between each mounting groove 331 and the motor plate 3 gradually increases from bottom to top, and each air guide vane 32 is installed in its respective mounting groove 331 to create an angle between the air guide vane 32 and the motor plate 3, thereby achieving the air guiding function.
[0022] Furthermore, the included angle between the air guide vane 32 and the motor plate 3 ranges from 44° to 82°. Specifically, the included angles between each air guide vane 32 from bottom to top and the motor plate 3 are 44°, 49°, 56°, 63°, 72°, and 82°, respectively. An air guide groove is formed between two adjacent air guide vanes 32. The air is blown from the air guide groove to the coil body 21 for heat exchange. Since cold air has a higher density and tends to settle at the bottom of the coil unit 2, the downward air guiding effect of the air guide vane 32 can blow the cold air up to achieve a better heat exchange effect, while also ensuring that the windward side of the coil body 21 receives air evenly.
[0023] Furthermore, the coil unit 2 is provided with a coil body 21 and a first air guide plate 22. One side of the first air guide plate 22 is fixedly installed with the motor plate 3, and the other side is inclined downward and connected to the bottom of the coil unit 2. An air outlet is provided on the outside of the coil unit 2, and a second air guide plate 23 is provided at the bottom of the air outlet. The second air guide plate 23 extends towards the bottom of the coil unit 2. Specifically, when the fan 1 blows air into the coil unit 2, the air enters the air guide 31 through the air outlet of the fan 1, and is guided and diverted by the various air guide vanes 32 in the air guide 31. Among them, the air guide vane 32 located at the bottom has the smallest angle with the motor plate 3, which guides the air to the bottom of the coil unit 2. After being guided by the first air guide plate 22, the air can flow better to the bottom of the coil body 21, achieving a better guiding effect. After heat exchange in the coil body 21, it is guided by the second air guide plate 23 and blown out to the air outlet of the coil unit 2, increasing the air pressure and air speed, so that the cold air can be blown further and achieve a better indoor temperature regulation effect.
[0024] Working principle: When the air conditioner is started, the coil in the coil unit 2 is used for cooling. The fan 1 blows the cold air out of the coil unit 2 to achieve the cooling effect in the room. When the fan 1 blows air into the coil unit 2, the air enters the air guide 31 through the air outlet of the fan 1 and is guided and distributed by the various air guide vanes 32 in the air guide 31. Since the angle between each air guide vane 32 and the motor plate 3 gradually increases from bottom to top, the air can be blown evenly to the coil body 21, ensuring that the windward side of the coil body 21 receives uniform airflow.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A structure for uniform airflow and heat exchange in a fan coil unit, characterized in that: The fan and the coil unit are provided with a motor plate, the other side of the motor plate is fixedly installed with the coil unit, the motor plate is provided with a wind guide opening at the outlet of the fan, a plurality of wind guide pieces are arranged on the wind guide opening, each wind guide piece is arranged downwardly and the included angle between each wind guide piece from bottom to top and the motor plate is gradually increased.
2. The fan-coil uniform air guide heat exchange structure according to claim 1, characterized in that: The two sides of the wind guide opening are provided with installation strips, the installation strips are provided with a plurality of installation grooves, each installation groove is used for installing each wind guide piece.
3. The fan-coil uniform air guiding heat exchanging structure according to claim 1, characterized in that: The included angle between the wind guide piece and the motor plate ranges from 44° to 82°.
4. The fan-coil uniform air guiding heat exchanging structure according to claim 1, characterized in that: The coil unit is provided with a coil body and a first wind guide plate, one side of the first wind guide plate is fixedly installed with the motor plate, the other side is downwardly inclined and connected with the bottom of the coil unit.
5. The fan-coil uniform air guiding heat exchanging structure according to claim 1, characterized in that: The outer side of the coil unit is provided with an air outlet, the bottom of the air outlet is provided with a second wind guide plate, the second wind guide plate extends to the bottom of the coil unit.