Fan coil with air filtering structure

Abstract

The utility model provides a fan coil with an air filtering structure, which relates to the technical field of fan coils and comprises a fan coil machine body, a centrifugal multi-blade fan is mounted on the front end face of the fan coil machine body, an air port filter is mounted at an air inlet at the side end of the centrifugal multi-blade fan in a threaded connection manner, and an air outlet filter is mounted at the air outlet of the centrifugal multi-blade fan. A first filter screen plate and a second filter screen plate are clamped and mounted on the inner side of the tuyere filter, a long-strip-shaped pressing plate is fixed to the left side end of the tuyere filter through fixing bolts, the side end of the long-strip-shaped pressing plate is connected with a small air compression pump through an air outlet pipe, and a transmission column penetrates through the middle of the first filter screen plate and the middle of the second filter screen plate; the right side of the transmission column is connected with a small motor through a rotating shaft, a dust blowing plate is arranged on the outer column face of the transmission column, and a dust blowing opening is formed in the left side face of the dust blowing plate. The fan coil solves the problem that in the prior art, dust is prone to being attached to a filter screen, the air inlet amount is limited, and the operation efficiency of the fan coil is affected.

Description

Technical Field

[0001] This utility model relates to the field of fan coil unit technology, specifically to a fan coil unit with an air filtration structure. Background Technology

[0002] Fan coil units are one of the terminal devices in an air conditioning system. They consist of a small fan, an electric motor, and a coil (air heat exchanger). When chilled or hot water flows through the coil, it exchanges heat with the outside air, cooling, dehumidifying, or heating the air to regulate indoor air parameters. A search revealed existing technology (publication number: CN202222728669.5) for a fan coil unit with a filtration function. The document states that "this utility model, through the setting of an air filter and a second filter, allows the air filter to sequentially filter and deodorize the outside air entering the fan wheel, removing dust, impurities, and odors from the outside air, improving air quality. Simultaneously, the second filter can also filter the air discharged at the air outlet." The system performs secondary filtration, resulting in dual filtration and improved filtration efficiency. The cleaning structure and brush allow the inlet of the cleaning structure to be connected to the water supply pipe, guiding water into the collection pipe and connecting pipe. Water sprays from the nozzle to clean the surface of the second filter screen, while the brush removes dust and impurities, thus cleaning and unclogging the second filter screen. However, in existing technologies, the air filter installed at the impeller inlet is prone to dust accumulation during daily use, limiting airflow and affecting the fan coil unit's operating efficiency. Utility Model Content

[0003] To overcome the shortcomings of existing technologies, a fan coil unit with an air filtration structure is provided to solve the problem that in the existing technology, the filter screen of the air filter installed at the impeller inlet is prone to dust accumulation during daily use, which restricts the air intake and thus affects the operating efficiency of the fan coil unit.

[0004] To achieve the above objectives, a fan coil unit with an air filtration structure is provided, comprising: a fan coil unit body, wherein a centrifugal multi-blade fan is mounted on the front end face of the fan coil unit body.

[0005] An air outlet filter is screwed onto the air inlet of the centrifugal multi-blade fan. A first filter plate and a second filter plate are snapped onto the inner side of the air outlet filter. A long strip pressure plate is fixed to the left side of the air outlet filter by fixing bolts. A small air compressor pump is connected to the side of the long strip pressure plate through an air outlet pipe. A transmission column runs through the middle of the first and second filter plates. A small motor is connected to the right side of the transmission column through a rotating shaft. A dust blowing plate is provided on the outer cylindrical surface of the transmission column, and a dust blowing port is opened on the left side of the dust blowing plate.

[0006] Furthermore, a pipe joint support is welded to the right end of the fan coil unit body, and a return water pipe and a supply water pipe are provided on the side of the pipe joint support.

[0007] Furthermore, a water collection tray is connected to the lower end of the fan coil unit, and a motor is connected to the side end of the centrifugal multi-blade fan via an impeller shaft; and the motors are distributed between the two sets of motors.

[0008] Furthermore, a support plate is welded to the middle of the right side of the air outlet filter, a small motor is fixed to the right side of the support plate, and nano-mineral crystal adsorption mesh plates are symmetrically installed on the upper and lower ends of the support plate.

[0009] Furthermore, the inner wall of the air outlet filter is fitted with a dust-adhesive pad; and the dust-adhesive pad is distributed at the distance between the first filter plate and the second filter plate.

[0010] Furthermore, the front end of the small air compressor pump is connected to an air inlet pipe and an air outlet pipe, the surface of the long strip pressure plate is provided with an air vent, and the inner side of the transmission column and the dust blowing plate is provided with an air vent.

[0011] Furthermore, the air chamber is connected to the air outlet pipe through the air vent, and the dust blowing plates are located on the right end face of the first filter plate and the second filter plate.

[0012] The beneficial effects of this utility model are as follows: the fan coil unit with air filtration structure utilizes a small air compressor pump, an air outlet filter, a first filter plate, a second filter plate, a transmission column, a small motor, and a dust blowing plate to form a self-cleaning air filtration structure. The small air compressor pump delivers compressed airflow to the dust blowing plate, which then discharges the compressed airflow to the filter plate surface inside the air outlet filter, blowing away the dust and impurities accumulated and attached to the filter plate. This facilitates effective cleaning of the dust and impurities attached to and clogging the filter plate mesh, preventing dust on the mesh surface from reducing the air intake of the fan coil unit, ensuring smooth airflow at the fan inlet of the fan coil unit, and reducing the number of times the fan coil unit's air filtration structure needs to be manually disassembled and cleaned, thus improving the practicality of the fan coil unit. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of a fan coil unit with an air filtration structure according to an embodiment of the present invention.

[0014] Figure 2 This is a front view cross-sectional structural diagram of the air filter structure according to an embodiment of the present invention.

[0015] Figure 3 This is a side view of the centrifugal multi-blade fan and air filter structure according to an embodiment of the present invention.

[0016] Figure 4This is a front view cross-sectional structural diagram of the transmission column according to an embodiment of the present utility model.

[0017] In the diagram: 1. Fan coil unit body; 11. Pipe joint support; 12. Return water pipe; 13. Supply water pipe; 14. Water collection tray; 2. Centrifugal multi-blade fan; 3. Electric motor; 4. Small air compressor pump; 41. Inlet pipe; 42. Outlet pipe; 5. Air outlet filter; 51. First filter screen; 52. Second filter screen; 53. Support plate; 54. Long strip pressure plate; 55. Dust-adhesive pad; 56. Nano-mineral crystal adsorption mesh plate; 57. Fixing bolt; 58. Vent; 6. Transmission column; 61. Rotating shaft; 62. Small motor; 63. Dust-blowing plate; 64. Dust-blowing port; 65. Vent chamber. Detailed Implementation

[0018] 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.

[0019] Reference Figures 1 to 4 As shown, this utility model provides a fan coil unit with an air filtration structure, including: a fan coil unit body 1, and a centrifugal multi-blade fan 2 installed on the front end face of the fan coil unit body 1.

[0020] A centrifugal multi-blade fan 2 has an air outlet filter 5 screwed into its side inlet. A first filter plate 51 and a second filter plate 52 are snapped into the inside of the air outlet filter 5. A long strip pressure plate 54 is fixed to the left side of the air outlet filter 5 by fixing bolts 57. A small air compressor pump 4 is connected to the side of the long strip pressure plate 54 through an air outlet pipe 42. A transmission column 6 runs through the middle of the first filter plate 51 and the second filter plate 52. A small motor 62 is connected to the right side of the transmission column 6 through a rotating shaft 61. A dust blowing plate 63 is provided on the outer surface of the transmission column 6. A dust blowing port 64 is opened on the left side of the dust blowing plate 63.

[0021] The fan coil unit body 1 is equipped with an air inlet filter 5 installed at the air inlet of the centrifugal multi-blade fan 2. The air entering the fan coil unit body 1 is filtered before entering the fan coil unit body 1. When dust and impurities adhere to the screen of the air inlet filter 5, the small motor 62 and the small air compressor pump 4 are started by the external controller. The small air compressor pump 4 sends the compressed airflow through the transmission column 6 to the dust blowing plate 63. At the same time, the transmission column 6 drives the dust blowing plate 63 to rotate at a uniform speed. The dust blowing port 64 on the side of the dust blowing plate 63 blows the compressed airflow toward the screen of the first filter plate 51 and the second filter plate 52, blowing away the dust attached to the screen of the first filter plate 51 and the second filter plate 52. This helps to prevent the dust on the screen from reducing the air intake of the fan coil unit and ensures that the airflow at the fan inlet of the fan coil unit is unobstructed.

[0022] In this embodiment, a pipe joint support 11 is welded to the right end of the fan coil unit body 1, and a return water pipe 12 and a supply water pipe 13 are provided on the side of the pipe joint support 11. A water collection pan 14 is connected to the lower end of the fan coil unit body 1, and a motor 3 is connected to the side end of the centrifugal multi-blade fan 2 through the impeller shaft; and the motor 3 is distributed between the spacing of the two sets of motors 3.

[0023] In a preferred embodiment, the fan coil unit 1 is driven by the motor 3 to draw indoor air into the heat exchange coil inside the fan coil unit 1, so that the heat exchange coil inside the fan coil unit 1 exchanges heat with the drawn air before being discharged into the fan coil unit 1, which facilitates the regulation of indoor air temperature. Chilled water or hot water can flow through the heat exchange coil inside the fan coil unit 1, and the chilled water or hot water flows into the heat exchange coil through the water supply pipe 13.

[0024] In this embodiment, a support plate 53 is welded to the middle of the right side of the air outlet filter 5. A small motor 62 is fixed to the right side of the support plate 53. Nano-mineral crystal adsorption mesh plates 56 are symmetrically installed on the upper and lower ends of the support plate 53. A dust-adhesive pad 55 is attached to the inner wall of the air outlet filter 5; and the dust-adhesive pad 55 is distributed at the distance between the first filter plate 51 and the second filter plate 52.

[0025] In a preferred embodiment, a small motor 62 drives the transmission column 6 and the dust-blowing plate 63 to rotate and blow dust along the mesh surfaces of the first filter plate 51 and the second filter plate 52. This causes the dust and impurities blown out by the first filter plate 51 to be discharged to the outside, while the dust and impurities blown out by the second filter plate 52 are adhered and sucked by the adhesive pad 55, thereby achieving the function of cleaning the mesh surfaces of the first and second filter plates 51 and 52. The nano-mineral crystal adsorption mesh plate 56 facilitates the purification and adsorption of filtered air, thus improving the indoor environmental quality of the fan coil unit 1.

[0026] In this embodiment, the front end of the small air compressor pump 4 is connected to an air inlet pipe 41 and an air outlet pipe 42. The surface of the long strip pressure plate 54 is provided with an air vent 58, and the inner side of the transmission column 6 and the dust blowing plate 63 is provided with an air vent 65. The air vent 65 is connected to the air outlet pipe 42 through the air vent 58, and the dust blowing plate 63 is located on the right end face of the first filter plate 51 and the second filter plate 52.

[0027] In a preferred embodiment, the small air compressor pump 4 draws external gas into the pump body through the air inlet pipe 41 for compression. After compression, the compressed gas is discharged into the dust blowing plate 63 through the air outlet pipe 42. The dust blowing port 64 of the dust blowing plate 63 discharges the compressed gas to the mesh surfaces of the first filter plate 51 and the second filter plate 52, and the compressed airflow is discharged to the filter plate surface inside the air outlet filter, blowing away the dust and impurities accumulated and attached to the filter plate. This achieves a cleaning effect on the mesh surfaces of the first filter plate 51 and the second filter plate 52, avoids dust on the mesh surface from reducing the air intake of the fan coil unit, and ensures smooth airflow at the fan inlet of the fan coil unit.

[0028] This invention relates to a fan coil unit with an air filtration structure, which effectively solves the problem in existing technologies where dust easily accumulates on the filter screen of the air filter installed at the impeller inlet, leading to limited airflow and affecting the operating efficiency of the fan coil unit. It facilitates effective cleaning of dust and impurities adhering to and clogging the filter screen opening, preventing dust from reducing the airflow of the fan coil unit and ensuring smooth airflow at the fan inlet. Simultaneously, it reduces the frequency of manual disassembly and cleaning of the fan coil unit's air filtration structure, improving the practicality of the fan coil unit. This invention is suitable for fan coil units with an air filtration structure.

[0029] 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 fan coil unit with an air filtration structure, comprising: A fan coil unit body (1), wherein a centrifugal multi-blade fan (2) is installed on the front end face of the fan coil unit body (1), characterized in that: A vent filter (5) is screwed onto the air inlet of the centrifugal multi-blade fan (2). A first filter plate (51) and a second filter plate (52) are snapped onto the inner side of the vent filter (5). A long strip pressure plate (54) is fixed to the left side of the vent filter (5) by a fixing bolt (57). A small air compressor pump (4) is connected to the side of the long strip pressure plate (54) through an air outlet pipe (42). A transmission column (6) runs through the middle of the first filter plate (51) and the second filter plate (52). A small motor (62) is connected to the right side of the transmission column (6) through a rotating shaft (61). A dust blowing plate (63) is provided on the outer cylindrical surface of the transmission column (6). A dust blowing port (64) is opened on the left side of the dust blowing plate (63).

2. A fan coil unit with an air filtration structure according to claim 1, characterized in that, The fan coil unit body (1) is welded to the right end of a pipe joint support (11), and a return water pipe (12) and a supply water pipe (13) are provided on the side of the pipe joint support (11).

3. A fan coil unit with an air filtration structure according to claim 1, characterized in that, The lower end of the fan coil unit body (1) is connected to a water collection tray (14), and the side end of the centrifugal multi-blade fan (2) is connected to a motor (3) through an impeller shaft; and the motors (3) are distributed between the two sets of motors (3).

4. A fan coil unit with an air filtration structure according to claim 1, characterized in that, A support plate (53) is welded to the middle of the right side of the air outlet filter (5). A small motor (62) is fixed on the right side of the support plate (53). Nano-mineral crystal adsorption mesh plates (56) are symmetrically installed on the upper and lower ends of the support plate (53).

5. A fan coil unit with an air filtration structure according to claim 1, characterized in that, The air outlet filter (5) has a dust-adhesive pad (55) attached to its inner wall; and the dust-adhesive pad (55) is located at the distance between the first filter plate (51) and the second filter plate (52).

6. A fan coil unit with an air filtration structure according to claim 1, characterized in that, The small air compressor (4) is connected to an air inlet pipe (41) and an air outlet pipe (42) at the front end. The surface of the long strip pressure plate (54) is provided with an air vent (58). The transmission column (6) and the dust blowing plate (63) are provided with an air vent (65).

7. A fan coil unit with an air filtration structure according to claim 6, characterized in that, The ventilation chamber (65) is connected to the air outlet (42) through the ventilation port (58), and the dust blowing plate (63) is located on the right end face of the first filter plate (51) and the second filter plate (52).

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