Air guide support for fan coil unit

Abstract

The utility model relates to the technical field of fan coil units, in particular to an air guide support for a fan coil unit, which comprises a heat exchanger and a fan, one side of the fan is connected with a shell through an air outlet, one side of the heat exchanger is connected with a top plate through the shell, and one side of the top plate is connected with the air guide support. The side, away from the heat exchanger, of the shell is connected with the air outlet. The noise reduction device has the advantages that the air guide support is installed at the air outlet, air flow is cut and guided through the air passing grooves and the air blocking teeth, the air flow is prevented from being directly blown into a heat exchanger at a high speed, and therefore the noise reduction effect is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of fan coil units, specifically to an air guide bracket for fan coil units. Background Technology

[0002] Fan coil units, also known as fan coil units, are one of the terminal devices in air conditioning systems, consisting of a small fan, an electric motor, and a coil (air heat exchanger). When chilled water or hot water flows through the coil, it exchanges heat with the air outside the coil, thereby cooling, dehumidifying, or heating the air to regulate indoor air parameters. They are commonly used terminal devices for cooling and heating.

[0003] Existing fan coil units on the market generate a wide-band high-frequency noise when the fan blows airflow at high speed through the finned heat exchanger due to the design and selection of the heat exchanger fin spacing and fan head. This greatly affects product quality and user experience, and also increases the after-sales maintenance rate. Therefore, this utility model proposes an air guide bracket for fan coil units to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an air guide bracket for fan coil units to solve the problem of high-frequency noise generated when airflow passes through a finned heat exchanger at high speed, as mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air guide bracket for a fan coil unit, comprising: a heat exchanger and a fan, one side of the fan being connected to the outer casing via an air outlet, one side of the heat exchanger being connected to a top plate via the outer casing, one side of the top plate being connected to the air guide bracket, the lower end of the air guide bracket and the top plate being connected to a baffle tooth and an air passage groove, and the side of the outer casing away from the heat exchanger being connected to the air outlet.

[0006] Preferably, the inner wall of the heat exchanger is fixedly connected with fins, one side of the heat exchanger is fixedly connected to one end of the outer shell, the upper end of the outer shell is in contact with several gaskets, the upper end of the gaskets is in contact with screws, and the upper end of the outer shell is provided with several threaded holes, which are threadedly connected to the screws.

[0007] Preferably, the lower end of the screw passes through the threaded hole at the upper end of the outer shell and is threadedly connected to the upper end of the top plate. An air guide bracket is fixedly connected to the side of the top plate near the heat exchanger, and the air guide bracket is located inside the heat exchanger.

[0008] Preferably, a rotating shaft is fixedly connected to both sides of the inner wall of the outer shell, a pneumatic wheel is rotatably connected to the surface of the rotating shaft, a rotating disk is fixedly connected to both ends of the pneumatic wheel, and the other side of the rotating disk is rotatably connected to both sides of the inner wall of the outer shell.

[0009] Preferably, the inner wall of the fan is rotatably connected to a fan wheel, and an air outlet is opened on one side of the fan. The air outlet is connected to the outer shell, the air outlet and the air guide bracket are located at the same height, and the horizontal length of the air guide bracket is the same as the length of the air outlet, and the vertical dimension does not exceed half of the air outlet.

[0010] Preferably, the air guide bracket is fixedly connected to the lower end of the top plate with a number of wind-blocking teeth, and an air passage groove is opened between every two wind-blocking teeth.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by installing an air guide bracket at the air outlet, the airflow is cut and guided by the air passage groove and the air baffle tooth, so as to avoid the airflow being blown into the heat exchanger in a straight and high-speed direction, thereby achieving the effect of noise reduction. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0014] Figure 3 This is a top view of the interior of the heat exchanger of this utility model;

[0015] Figure 4 This is a bottom view of the interior of the heat exchanger of this utility model.

[0016] In the diagram: 1. Heat exchanger; 2. Fins; 3. Air guide bracket; 4. Air baffle; 5. Air duct; 6. Fan wheel; 7. Fan; 8. Top plate; 9. Screw; 10. Gasket; 11. Air impeller; 12. Outer shell; 13. Rotating disc; 14. Air outlet; 15. Shaft. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] Please see Figures 1 to 4This utility model provides a technical solution: an air guide bracket for a fan coil unit, comprising: a heat exchanger 1 and a fan 7. The heat exchanger 1 allows heat to be transferred from a hot fluid to a cold fluid. The inner wall of the heat exchanger 1 is fixedly connected with fins 2. When a high-speed airflow passes through the fins 2, noise is easily generated. One side of the heat exchanger 1 is fixedly connected to one end of a housing 12. The upper end of the housing 12 is provided with several threaded holes. The upper end of the housing 12 contacts several gaskets 10. The gaskets 10 can enhance the friction of the screws 9 and prevent them from falling off during use. The threaded holes are threadedly connected to the screws 9. The lower end of the screws 9 passes through the gaskets 10 and the threaded holes at the upper end of the housing 12 in sequence, and is threadedly connected to the upper end of the top plate 8. This makes the air guide bracket 3 easy to install and not easily deformed.

[0019] A guide bracket 3 is fixedly connected to the side of the top plate 8 near the heat exchanger 1. The guide bracket 3 is located inside the heat exchanger 1 and is curved to prevent the airflow from blowing directly onto the fins 2 inside the heat exchanger 1. The airflow is effectively redirected by the guide bracket 3. A rotating shaft 15 is fixedly connected to both sides of the inner wall of the outer shell 12. An air wheel 11 is rotatably connected to the surface of the rotating shaft 15. The air wheel 11 has a toothed cross section. When the airflow passes through, it will drive the air wheel 11 to rotate, thereby reducing the airflow velocity and preventing the airflow velocity in contact with the fins 2 from being too high.

[0020] Rotating disks 13 are fixedly connected to both ends of the air impeller 11. The other side of the rotating disk 13 is rotatably connected to both sides of the inner wall of the outer casing 12. When the airflow drives the air impeller 11 to rotate, the rotating disk 13 will also rotate. The rotating disk 13 can limit the position of the air impeller 11 and reduce the friction when the air impeller 11 rotates, making it smoother. Several wind-blocking teeth 4 are fixedly connected to the lower end of the air guide bracket 3 and the top plate 8. An air passage groove 5 is opened between every two wind-blocking teeth 4. When the airflow is obstructed by the air guide bracket 3, it will be cut by the wind-blocking teeth 4 and blown out through the air passage groove 5. The number of wind-blocking teeth is 3-5 per 100 mm. The area ratio of the air passage groove 5 to the wind-blocking teeth 4 is controlled at 1.4-1.8:1 to ensure noise reduction and maximum airflow.

[0021] The inner wall of the fan 7 is rotatably connected to the impeller 6. When the fan 7 is powered on and started, the impeller 6 will start to rotate. The fan 7 can generate a large amount of high-speed airflow through the impeller 6. An air outlet 14 is opened on one side of the fan 7. The air outlet 14 is connected to the outer casing 12. The high-speed airflow generated by the impeller 7 will enter the outer casing 12 through the air outlet 14. The air outlet 14 and the air guide bracket 3 are located at the same height, and the horizontal length of the air guide bracket 3 is the same as the length of the air outlet 14. The vertical dimension does not exceed half of the air outlet 14, so as to avoid excessive impact on the air volume. When the high-speed airflow enters the outer casing 12, it will come into contact with the impeller 11 and the air guide bracket 3, and then the airflow will be decelerated and the wind direction will be adjusted.

[0022] When this device is in operation, after verifying that the device is functioning correctly, start the fan 7. The fan 7 generates a large amount of high-speed airflow. As the airflow passes through the outer casing 12, it drives the impeller 11 to rotate. The rotation of the impeller 11 consumes some of the energy of the airflow, thereby slowing down the airflow. Subsequently, as the airflow passes through the air guide bracket 3, the baffle teeth 4 cut the airflow and then it flows out along the air passage 5, thus adjusting the airflow direction and preventing the airflow from passing directly through the fins 2 at high speed. This improves the problem of wideband high-frequency abnormal noise generated by the airflow generated by the fan 7 when passing through the fins 2. In addition, the air guide bracket 3 can reduce the impact of the air guide device on the airflow through the heat exchanger. The whole device is easy to disassemble and maintain.

[0023] 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. An air guide bracket for a fan coil unit, characterized in that: The fan coil unit's air guide bracket includes a heat exchanger (1) and a fan (7). One side of the fan (7) is connected to the outer casing (12) through an air outlet (14). One side of the heat exchanger (1) is connected to a top plate (8) through the outer casing (12). One side of the top plate (8) is connected to an air guide bracket (3). The air guide bracket (3) and the lower end of the top plate (8) are connected to a wind deflector (4) and a wind passage groove (5). The side of the outer casing (12) away from the heat exchanger (1) is connected to the air outlet (14).

2. The air guide bracket for a fan coil unit according to claim 1, characterized in that: The inner wall of the heat exchanger (1) is fixedly connected with fins (2). One side of the heat exchanger (1) is fixedly connected to one end of the outer shell (12). The upper end of the outer shell (12) is in contact with several gaskets (10). The upper end of the gaskets (10) is in contact with screws (9). The upper end of the outer shell (12) is provided with several threaded holes, which are threadedly connected to the screws (9).

3. The air guide bracket for a fan coil unit according to claim 2, characterized in that: The lower end of the screw (9) passes through the threaded hole at the upper end of the outer shell (12) and is threaded to the upper end of the top plate (8). The top plate (8) is fixedly connected to the side near the heat exchanger (1) with a wind guide bracket (3). The wind guide bracket (3) is located inside the heat exchanger (1).

4. The air guide bracket for a fan coil unit according to claim 1, characterized in that: A rotating shaft (15) is fixedly connected to both sides of the inner wall of the outer shell (12). A pneumatic wheel (11) is rotatably connected to the surface of the rotating shaft (15). A rotating disk (13) is fixedly connected to both ends of the pneumatic wheel (11). The other side of the rotating disk (13) is rotatably connected to both sides of the inner wall of the outer shell (12).

5. The air guide bracket for a fan coil unit according to claim 1, characterized in that: The inner wall of the fan (7) is rotatably connected to the impeller (6). An air outlet (14) is opened on one side of the fan (7). The air outlet (14) is connected to the outer shell (12). The air outlet (14) and the air guide bracket (3) are at the same height. The horizontal length of the air guide bracket (3) is the same as the length of the air outlet (14), and the vertical dimension does not exceed half of the air outlet (14).

6. The air guide bracket for a fan coil unit according to claim 1, characterized in that: The air guide bracket (3) is fixedly connected to the lower end of the top plate (8) with several wind-blocking teeth (4), and an air passage groove (5) is opened between every two wind-blocking teeth (4).

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