Fan coil of central air conditioner

By designing an integrated central air conditioning fan coil unit, automatic cleaning of the filter plates and dust collection are achieved using transmission and cleaning motors. This solves the problems of air quality degradation caused by dust pollutants and frequent filter plate replacement, improving the convenience of air filtration and the service life of the filter plates.

CN223623030UActive Publication Date: 2025-12-02GUANGZHOU TAKAMURA AIR CONDITION MFG CO LTD
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Patent Information

Application Number
CN202423270667.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-02
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

When existing central air conditioning systems have coil structures fixed at the air outlet, dust and pollutants in the air cause a decline in indoor air quality, and the filter plates need to be replaced and cleaned frequently, resulting in a short service life.

Method used

Design a central air conditioning fan coil unit, including a main coil body, an end fixing box, a transmission motor, a cleaning base box, a cleaning motor, and a vacuum cleaner. The transmission motor drives the main drive shaft and transmission gear to achieve automatic cleaning of the filter plate and dust collection. Combined with the convenient replacement of the sealing cover, an integrated cleaning structure is formed.

Benefits of technology

It enables convenient and efficient cleaning of air filters, extends the service life of filter plates, and improves air quality and cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fan coil of a central air conditioner, which relates to the field of central air conditioners and comprises a main coil body, one end of the main coil body is fixedly connected with an end fixing box, mounting strips are symmetrically welded on two sides of the main coil body and the end fixing box, top channels are uniformly arranged on the top surface of the main coil body, and the end fixing box is fixedly connected with the main coil body. A sealing cover plate is horizontally connected to the inner side edge of the top channel in a clamped mode, a conveying motor is fixedly connected to one side edge of the main coil body, cleaning bottom boxes are evenly and fixedly connected to the bottom face of the main coil body, a cleaning motor is fixedly connected to one side edge of each cleaning bottom box, and a collecting pipeline is fixedly connected to the bottom end of each cleaning bottom box. A fan body is fixedly arranged on the inner side edge of the end fixing box, isolation net plates are symmetrically and fixedly arranged on the inner side edge of the end fixing box, a combined cleaning integrated structure is adopted, so that cleaning is more convenient and efficient during use, and meanwhile, the overall service life is greatly prolonged through a centralized dust collecting structure.
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Description

Technical Field

[0001] This utility model relates to the field of central air conditioning technology, specifically a central air conditioning fan coil unit. Background Technology

[0002] Central air conditioning consists of air handling equipment (such as combined air conditioning units and fan coil units), heat and humidity handling equipment (i.e., cold and heat sources or air conditioning main units), supply and return air ducts, and various terminal air outlet units (i.e., fan coil units or indoor units, etc.).

[0003] When installing and using current central air conditioning systems, the coil structure is fixedly installed at the air outlet for ventilation. This allows air to enter the coil directly through the power equipment, resulting in dust and pollutants in the air. Direct use of this air affects indoor air quality. Furthermore, the fixed filter plate structure in the coil requires frequent replacement and cleaning, which prevents the filter plate from having an extended lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a central air conditioning fan coil unit to solve the problems mentioned in the background art. When installing and using current central air conditioning systems, the coil structure is fixedly installed at the air outlet for ventilation. This allows air to enter the coil directly through the power equipment, resulting in dust and pollutants in the air. Direct use of the air affects indoor air quality. Furthermore, the fixed filter plate structure in the coil requires frequent replacement and cleaning, which limits the lifespan of the filter plate.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A central air conditioning fan coil unit includes a main coil body, one end of which is fixedly connected to an end fixing box. Mounting strips are symmetrically welded to both sides of the main coil body and the end fixing box. A top groove is evenly formed on the top surface of the main coil body, and a sealing cover plate is horizontally engaged with the inner side of the top groove. A transmission motor is fixedly connected to one side of the main coil body. A cleaning bottom box is evenly fixedly connected to the bottom surface of the main coil body, and a cleaning motor is fixedly connected to one side of the cleaning bottom box. A collection pipe is fixedly connected to the bottom end of the cleaning bottom box. A fan body is fixedly installed on the inner side of the end fixing box. The inner side of the fixed box is symmetrically fixed with isolation mesh plates. The inner side of the main coil body is vertically and evenly clamped with movable clamping frames. The side of the movable clamping frame is vertically provided with side tooth grooves. The side wall of the main coil body is symmetrically clamped with transmission gears. The inner side of the cleaning bottom box is horizontally clamped with cleaning rollers. The inner side of the main coil body is vertically provided with movable inner grooves. The inner side of the movable clamping frame is vertically provided with clamping inner grooves. The inner side of the clamping inner groove is vertically clamped with clamping frames. The inner side of the clamping frames is fixedly clamped with filter plates. The inner wall of the main coil body is horizontally inserted with a main drive shaft.

[0007] In a preferred embodiment of the present invention: the two ends of the main coil body are open, the open end of the end fixing box is fixedly connected to the open end of the main coil body to maintain communication, and the mounting strips are symmetrically fixed in pairs at one end of the side of the end fixing box and the main coil body.

[0008] In a preferred embodiment of this utility model, there are multiple top channels, and the multiple top channels are arranged in parallel with each other. The bottom end of the top channel is connected to the top opening end of the snap-fit ​​inner channel. The transmission motors are all horizontally fixed on the side of the main coil body near the bottom surface, and the output end of the transmission motor is extended and fixedly connected to one end of the main drive shaft.

[0009] In a preferred embodiment of this utility model: the top opening of the cleaning box is fixedly connected to the through groove on the bottom surface of the main coil body, the output end of the cleaning motor is extended and fixedly connected to one end of the cleaning roller body, the collection pipe is inserted into the bottom opening of the cleaning box to maintain connection, and the bottom end of the collection pipe is fixedly connected to the input end of the vacuum cleaner.

[0010] In a preferred embodiment of this utility model: the isolation mesh plate is symmetrically fixed at the two open ends inside the end fixing box; the movable locking frame is vertically locked in a U-shape at the inner side of the movable inner groove; the transmission gears are symmetrically fixed and sleeved at the outer side of the main drive shaft near both ends, and the outer side of the transmission gear extends to the inner side of the side tooth groove for toothed engagement; the cleaning roller is horizontally locked at the inner side of the cleaning bottom box near the top opening end, and the top of the locking inner groove is open.

[0011] In a preferred embodiment of this utility model, the filter plates are arranged in parallel to each other, and the main drive shaft is horizontally inserted into the bottom inner side of the main coil body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention involves horizontally connecting the main coil body and the end fixing box at a designated position on the central air conditioning vent. The mounting strip is fixed in place with bolts. The fan rotates, drawing in outside air into the main coil body. Impurities in the air are filtered by the isolation mesh. After entering the main coil body, the air is filtered through multiple filter plates, allowing clean air to be delivered to the air conditioning unit. When cleaning the filter plates is required after prolonged filtration, the transmission motor is controlled to rotate, causing the output end to drive the main drive shaft. This causes the external transmission gear to move the movable retaining frame downwards along the movable inner groove. The movable clip is inserted downwards into the cleaning base box. Simultaneously, the cleaning motor rotates the cleaning roller, causing it to rotate and clean the sides of the downward-moving filter plate. One end of the bottom collection pipe is connected to the vacuum cleaner input. After the cleaned dust falls into the cleaning base box, it is collected by the vacuum cleaner at the bottom. The movable clip is then moved upwards for reinstallation. When replacement is needed, the sealing cover can be opened, and the clip can be pulled upwards through the top groove for replacement. This integrated cleaning structure makes cleaning more convenient and efficient, while the centralized dust collection structure significantly increases its overall lifespan. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a three-dimensional structural diagram of a central air conditioning fan coil unit;

[0016] Figure 2 A structural schematic diagram showing the connection details of a three-dimensional cross-sectional view of the end fixing box of a central air conditioning fan coil unit;

[0017] Figure 3 A structural schematic diagram showing the connection details of a three-dimensional cross-section of the main coil body of a central air conditioning fan coil unit;

[0018] Figure 4 A schematic diagram showing the structural details of the cleaning base box for a central air conditioning fan coil unit;

[0019] Figure 5 This is a structural schematic diagram showing the top cross-sectional view of the main coil body of a central air conditioning fan coil unit, detailing the connection process.

[0020] In the diagram: 1. Main coil body; 2. End fixing box; 3. Mounting strip; 4. Top groove; 5. Sealing cover plate; 6. Transmission motor; 7. Cleaning bottom box; 8. Cleaning motor; 9. Collection pipe; 10. Fan body; 11. Isolation mesh plate; 12. Movable clamping frame; 13. Side toothed groove; 14. Transmission gear; 15. Cleaning roller body; 16. Movable inner groove; 17. Clamping inner groove; 18. Clamping frame; 19. Filter plate body; 20. Main drive shaft. Detailed Implementation

[0021] Please see Figure 1 In this embodiment of the utility model, a central air conditioning fan coil unit includes a main coil body 1. One end of the main coil body 1 is fixedly connected to an end fixing box 2. Installation strips 3 are symmetrically welded to both sides of the main coil body 1 and the end fixing box 2. Both ends of the main coil body 1 are open. The open end of the end fixing box 2 is fixedly connected to the open end of the main coil body 1 to maintain communication. The installation strips 3 are symmetrically fixed in pairs at one end of the side of the end fixing box 2 and the main coil body 1. Top grooves 4 are evenly provided on the top surface of the main coil body 1. A sealing cover plate 5 is horizontally snapped onto the inner side of the top groove 4. A transmission motor 6 is fixedly connected to one side of the main coil body 1. There are multiple top grooves 4, and these multiple top grooves 4 are arranged in parallel to each other. The bottom end of the top groove 4 is aligned with... The cleaning roller 15 is fixedly located at the top opening of the inner groove 17. The transmission motor 6 is horizontally fixedly located on the side of the main coil body 1 near the bottom surface. The output end of the transmission motor 6 is extended and fixedly connected to one end of the main drive shaft 20. The bottom surface of the main coil body 1 is uniformly fixedly connected to the cleaning bottom box 7. The cleaning motor 8 is fixedly connected to one side of the cleaning bottom box 7. The bottom end of the cleaning bottom box 7 is fixedly connected to the collection pipe 9. The top opening of the cleaning bottom box 7 is fixedly connected to the through groove on the bottom surface of the main coil body 1. The output end of the cleaning motor 8 is extended and fixedly connected to one end of the cleaning roller body 15. The collection pipe 9 is inserted into the bottom opening of the cleaning bottom box 7 to maintain connection. The bottom end of the collection pipe 9 is fixedly connected to the vacuum cleaner input end.

[0022] Please see Figure 2-5In this embodiment of the utility model, a central air conditioning fan coil unit includes a fan body 10 fixedly mounted on the inner side of an end fixing box 2, and isolation mesh plates 11 symmetrically fixedly mounted on the inner side of the end fixing box 2. Movable clamping frames 12 are vertically and evenly engaged on the inner side of the main coil body 1. Side toothed grooves 13 are vertically opened on the side of the movable clamping frame 12. Transmission gears 14 are symmetrically engaged on the side wall of the main coil body 1. A cleaning roller 15 is horizontally engaged on the inner side of a cleaning bottom box 7. A movable inner groove 16 is vertically opened on the inner side of the main coil body 1. A clamping inner groove 17 is vertically opened on the inner side of the movable clamping frame 12. Isolation mesh plates 11 are symmetrically fixedly mounted at the two open ends of the inner side of the end fixing box 2. Movable clamping frames 12... The transmission gears 14 are symmetrically fixed and sleeved on the outer side of the main drive shaft 20 near both ends, and the outer side of the transmission gears 14 extends to the inner side of the side tooth groove 13 for toothed connection. The cleaning roller body 15 is horizontally fixed and sleeved on the inner side of the cleaning bottom box 7 near the top opening. The top of the locking inner groove 17 is open. The inner side of the locking inner groove 17 is vertically locked with a locking frame 18. The inner side of the locking frame 18 is fixedly locked with a filter plate body 19. The main drive shaft 20 is horizontally inserted into the inner wall of the main coil body 1. The filter plates 19 are arranged in parallel with each other. The main drive shaft 20 is horizontally inserted into the inner bottom surface of the main coil body 1.

[0023] The working principle of this utility model is as follows:

[0024] The main coil body 1 and the end fixing box 2 are horizontally aligned and installed at the designated position of the central air conditioning vent. The mounting strip 3 is fixed in place with bolts. Then, the fan body 10 rotates, drawing in external air into the main coil body 1. The air is filtered by the isolation mesh plate 11, which isolates and filters impurities from the air. After entering the main coil body 1, the air is filtered through multiple filter plates 19, allowing clean air to be delivered to the air conditioning unit. After prolonged filtration, when the filter plates 19 need to be cleaned, the transmission motor 6 is controlled to rotate, causing the output end to drive the main drive shaft 20 to rotate, thus cleaning the external transmission gears. Wheel 14 drives the movable frame 12 to move downward along the movable inner groove 16, so that the movable frame 12 is inserted into the cleaning box 7. At the same time, the cleaning motor 8 rotates, causing the cleaning roller 15 to rotate, so that the side rotates to clean the side of the downward moving filter plate 19. One end of the bottom collection pipe 9 is connected to the vacuum cleaner input end. After the cleaned dust falls into the cleaning box 7, it is collected by the vacuum cleaner at the bottom. Then the movable frame 12 is moved upward to be reinstalled for use. When replacement is needed, the sealing cover 5 can be opened and the snap-fit ​​frame 18 can be pulled upward through the top groove 4 for replacement.

[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 central air conditioning fan coil unit, comprising a main coil body (1), characterized in that, One end of the main coil body (1) is fixedly connected to an end fixing box (2). Mounting strips (3) are symmetrically welded to both sides of the main coil body (1) and the end fixing box (2). A top groove (4) is evenly opened on the top surface of the main coil body (1). A sealing cover plate (5) is horizontally snapped onto the inner side of the top groove (4). A transmission motor (6) is fixedly connected to one side of the main coil body (1). A cleaning bottom box (7) is evenly fixedly connected to the bottom surface of the main coil body (1). A cleaning motor (8) is fixedly connected to one side of the cleaning bottom box (7). A collection pipe (9) is fixedly connected to the bottom end of the cleaning bottom box (7). A fan body (10) is fixedly installed on the inner side of the end fixing box (2). A fan body (10) is symmetrically fixed on the inner side of the end fixing box (2). The isolation mesh plate (11) has a movable frame (12) vertically and evenly clamped on the inner side of the main coil body (1). The movable frame (12) has a side tooth groove (13) vertically opened on the side. The main coil body (1) has a transmission gear (14) symmetrically clamped on the side wall. The cleaning roller (15) is horizontally clamped on the inner side of the cleaning box (7). The main coil body (1) has a movable inner groove (16) vertically opened on the inner side. The movable frame (12) has a clamping inner groove (17) vertically opened on the inner side. The clamping inner groove (17) has a clamping frame (18) vertically clamped on the inner side. The filter plate (19) is fixedly clamped on the inner side of the clamping frame (18). The main drive shaft (20) is horizontally inserted into the inner side wall of the main coil body (1).

2. A central air conditioning fan coil unit according to claim 1, characterized in that, The main coil body (1) has two open ends. The open end of the end fixing box (2) is fixedly connected to the open end of the main coil body (1) to maintain communication. The mounting strips (3) are symmetrically fixed in pairs at one end of the side of the end fixing box (2) and the main coil body (1).

3. A central air conditioning fan coil unit according to claim 1, characterized in that, The number of top channels (4) is multiple, and the multiple top channels (4) are arranged in parallel with each other. The bottom end of the top channel (4) is connected to the top opening end of the snap-fit ​​inner groove (17). The transmission motors (6) are all horizontally fixed on the side of the main coil body (1) near the bottom surface, and the output end of the transmission motor (6) is extended and fixedly connected to one end of the main drive shaft (20).

4. A central air conditioning fan coil unit according to claim 1, characterized in that, The top opening of the cleaning box (7) is fixedly connected to the bottom groove of the main coil body (1), the output end of the cleaning motor (8) is extended and fixedly connected to one end of the cleaning roller body (15), the collection pipe (9) is inserted into the bottom opening of the cleaning box (7) to maintain a continuous connection, and the bottom end of the collection pipe (9) is fixedly connected to the input end of the vacuum cleaner.

5. A central air conditioning fan coil unit according to claim 1, characterized in that, The isolation mesh plate (11) is symmetrically fixed at the two open ends inside the end fixing box (2). The movable frame (12) is vertically clamped in a U-shape to the inner side of the movable inner groove (16). The transmission gears (14) are symmetrically fixed and sleeved on the outer side of the main drive shaft (20) near both ends. The outer side of the transmission gear (14) extends to the inner side of the side tooth groove (13) for toothing. The cleaning roller (15) is horizontally clamped to the inner side of the cleaning bottom box (7) near the top opening end. The top of the clamping inner groove (17) is open.

6. A central air conditioning fan coil unit according to claim 1, characterized in that, The filter plates (19) are arranged in parallel to each other, and the main drive shaft (20) is horizontally inserted into the bottom inner side of the main coil body (1).