Fan coil unit

Abstract

The utility model belongs to the technical field of air conditioning, and discloses a fan coil unit which comprises a shell, a fan assembly and a heat exchanger assembly, the heat exchanger assembly comprises a heat exchanger body. The heat exchanger assembly further comprises a filtering part and at least one sterilization part, and the filtering part is arranged on the air inlet side of the heat exchanger body and used for filtering air entering the heat exchanger body. The sterilizing part is arranged between the heat exchanger body and the filtering part and used for sterilizing the surface of the heat exchanger body and the filtering part. According to the fan coil unit, dust particles in air are effectively filtered out through the filtering component, and therefore the problem that the heat exchange efficiency of the heat exchanger body is reduced due to dust accumulation is effectively prevented; the sterilizing part can continuously and efficiently sterilize the surface of the heat exchanger main body, and can synchronously prevent the filtering part from breeding bacteria; in addition, the filtering part also plays a role in protecting the sterilizing part, and the sterilizing part is effectively prevented from being accidentally damaged or accumulating dirt.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a fan coil unit. Background Art

[0002] At present, fan coil units have been widely used in various commercial facilities and residential buildings. As an indispensable terminal device of the central air-conditioning system, they undertake the key task of providing accurate cooling and heating regulation for independent spaces. They mainly include fan components and coil heat exchangers.

[0003] In actual operation, the coil heat exchanger is prone to dust absorption, which not only hinders the effective heat exchange between the air and the heat exchanger surface, thereby reducing the overall heat exchange efficiency, but also with the continuous accumulation of dust and dirt, the heat exchanger surface is very likely to become a breeding ground for bacteria. These harmful microorganisms may diffuse into the indoor air after passing through the heat exchanger with the airflow, thereby posing a threat to the air quality of the indoor environment and even posing a potential risk to the health of residents or users.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In response to the problems pointed out in the background technology, the present application provides a fan coil unit, in which a heat exchanger assembly integrates a filter component and a sterilization component. The filter component can prevent dust accumulation in the heat exchanger and improve heat exchange efficiency. At the same time, the sterilization component can sterilize the heat exchanger and the filter component.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] In some embodiments of the present application, a fan coil unit is provided, comprising:

[0008] A housing having an air inlet and an air outlet;

[0009] A fan assembly, the fan assembly is arranged in the housing and is used to drive air to flow from the air inlet to the air outlet;

[0010] A heat exchanger assembly, the heat exchanger assembly is disposed in the housing and is located between the air supply port and the air inlet along the air flow direction;

[0011] The heat exchanger assembly includes a heat exchanger body;

[0012] The heat exchanger assembly also includes a filter component and at least one sterilization component. The filter component is arranged on the air inlet side of the heat exchanger body to filter the air entering the heat exchanger body; the sterilization component is arranged between the heat exchanger body and the filter component to sterilize the surface of the heat exchanger body and the filter component.

[0013] The filter components can effectively filter out most of the dust particles, particulate pollutants and microbial impurities entering the air, thereby effectively preventing the heat exchange efficiency of the heat exchanger from being reduced due to dust accumulation.

[0014] The sterilization component can not only continuously and efficiently sterilize the surface of the heat exchanger body to ensure its clean and sterile state, but also simultaneously act on the filter components that have intercepted dust to prevent bacteria from growing on the filter components.

[0015] In some embodiments of the present application, the structure of the heat exchanger body is simple, specifically comprising:

[0016] A heat exchange tube, in which a heat exchange medium flows, and both ends of the heat exchange tube are respectively connected to an inlet pipe and an outlet pipe;

[0017] Two left and right tube sheets, the left and right tube sheets are fixed to the left and right ends of the heat exchange tube;

[0018] The upper and lower guard plates are connected to the upper ends of the two tube plates, and the lower guard plate is fixedly connected to the lower ends of the two tube plates.

[0019] The heat exchange tube is arranged in a cavity formed by two tube sheets and two guard plates, and the cavity forms an air inlet cavity on the air inlet side of the heat exchange tube; the filter component is arranged in the air inlet cavity.

[0020] In some embodiments of the present application, a draw-out opening is provided on the tube plate or the guard plate, and the filter component is configured to be suitable for entering and exiting the air inlet cavity through the draw-out opening. The filter component can be drawn out for easy replacement and cleaning.

[0021] In some embodiments of the present application, the tube sheet has a draw-out opening, the upper and lower guard plates are respectively provided with slide grooves opposite to the draw-out opening, the filter component is arranged in the slide groove, and the filter component slides along the slide groove through the draw-out opening to enter and exit the air inlet cavity. The slide groove has a simple structure and is convenient for guiding the filter component to perform a draw-out operation.

[0022] In some embodiments of the present application, a baffle is provided on the drawer opening, and the baffle is used to close or open the drawer opening. The baffle has a simple structure and can be fixed by screws.

[0023] In some embodiments of the present application, the filter component includes at least one layer of filter screen and a filter screen frame arranged around the filter screen and fixedly connected to the filter screen. Different types of filter screens can be provided, such as high-efficiency filter screens, cold catalyst filter screens, activated carbon filter screens, etc.

[0024] In some embodiments of the present application, the sterilization component is disposed in the air inlet cavity, and the sterilization component is located above the filter component and the heat exchange tube and does not affect the air intake.

[0025] In some embodiments of the present application, the sterilization component is an ultraviolet lamp, and the sterilization component is fixed to the upper guard plate. The ultraviolet lamp has a simple structure and low cost.

[0026] In some embodiments of the present application, the ultraviolet lamp includes a lamp holder electrical control box and a lamp tube connected to the lamp holder electrical control box; the lamp holder electrical control box is fixed to the upper guard plate, and the lamp tube is arranged under the upper guard plate.

[0027] In some embodiments of the present application, a wire passing hole is provided on the tube plate and / or the guard plate, and the wire passing hole is used to pass the wires connected to the sterilization component.

[0028] The present application also provides a fan coil unit, comprising:

[0029] Compared with the prior art, the advantages and positive effects of the utility model are:

[0030] In the above embodiment, the fan coil unit of the present application is provided with a filter component on the air inlet side of the heat exchanger to effectively filter out most of the dust particles, particulate pollutants and microbial impurities entering the air, thereby effectively preventing the problem of reducing the heat exchange efficiency of the heat exchanger body due to dust accumulation; by providing a sterilization component, not only can the surface of the heat exchanger body be continuously and efficiently sterilized to ensure its clean and sterile state, but it can also simultaneously act on the filter component that has intercepted dust to prevent the filter component from breeding bacteria; while the filter component plays a purification function, it also protects the sterilization component, effectively preventing the sterilization component from being accidentally damaged or accumulated dirt, thereby ensuring the stable operation and long-term effectiveness of the entire sterilization system.

[0031] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 A schematic structural diagram of a fan coil unit according to some embodiments is shown;

[0034] Figure 2 Another structural schematic diagram of a fan coil unit according to some embodiments is shown;

[0035] Figure 3 shows a perspective view of a heat exchanger assembly according to some embodiments;

[0036] Figure 4 A state diagram showing a heat exchanger assembly after a filter component is pulled out according to some embodiments;

[0037] Figure 5 shows an exploded view of a heat exchanger assembly according to some embodiments;

[0038] Figure 6 A schematic diagram of the structure of an upper guard plate and a sterilization component in a fan coil unit according to some embodiments is shown;

[0039] Figure 7 A schematic diagram of the structure of a lower guard plate in a fan coil unit according to some embodiments is shown;

[0040] Figure 8 A schematic diagram of the assembly of a baffle of a fan coil unit according to some embodiments is shown;

[0041] Fig. 9 Show Figure 8 The enlarged image at point I in the middle;

[0042] Fig.10 A schematic diagram of the structure of a lamp tube in a fan coil unit according to some embodiments is shown;

[0043] Description of reference numerals:

[0044] 100-housing; 110-air inlet; 120-air outlet;

[0045] 200- fan assembly;

[0046] 300-heat exchanger assembly;

[0047] 310-heat exchanger body; 311-heat exchange tube; 312-inlet tube; 313-outlet tube; 314-tube sheet; 3141-drawing port; 3142-wire hole; 315-upper guard plate, 3151-upper slide groove; 316-lower guard plate; 3161-lower slide groove; 317-baffle; 318-screw hole;

[0048] 320- filter element;

[0049] 330- sterilization component; 331- lamp holder electric control box; 332- lamp tube. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0056] The embodiment of the present application provides a fan coil unit, which, as a terminal device, can be an important component of a central air conditioning system. Indoor air can be connected to the air inlet and air outlet of the fan coil unit through the return air duct and the supply air duct, so that air can circulate between the fan coil unit and the indoor space. In addition, the air conditioning unit installed outdoors can also provide outdoor fresh air to the indoor space through the fresh air outlet to improve the indoor air quality.

[0057] like Figure 1-Figure 10 As shown, some embodiments of the present application provide a fan coil unit. The fan coil unit can be vertical, horizontal, wall-mounted, cassette-type, etc.

[0058] See also Figure 1 and Figure 2 The fan coil unit includes a shell 100, a fan assembly 200, and a heat exchanger assembly 300.

[0059] The housing 100 has an air inlet 110 and an air outlet 120 ; indoor air can circulate between the fan coil unit and the indoor space through the air inlet 110 and the air outlet 120 .

[0060] The fan assembly 200 is disposed in the housing 100 , and is used to drive air flow, thereby driving the air to flow from the air inlet 110 to the air outlet 120 .

[0061] The fan assembly 200 is disposed close to the air inlet 110 of the housing 100 .

[0062] The fan assembly 200 can select a centrifugal fan or a cross-flow fan according to factors such as specific air conditioning needs, noise control requirements, and installation space conditions.

[0063] The heat exchanger assembly 300 is disposed in the housing 100 and is located between the air supply port 120 and the air inlet 110 along the air flow direction.

[0064] The heat exchanger assembly 300 is disposed near the air inlet 110 and is used for heat exchange to heat or cool the air.

[0065] like Figure 3 As shown, the heat exchanger assembly 300 includes a heat exchanger body 310 .

[0066] The heat exchanger assembly 300 further includes a filter component 320 and at least a sterilization component 330 .

[0067] The filter component 320 is disposed on the air inlet side of the heat exchanger body 310 , and is used to filter the air entering the heat exchanger body 310 .

[0068] The filter component 320 has a sufficient area to cover the air inlet 110 and can effectively capture and intercept most of the dust, particulate matter and microorganisms in the air.

[0069] The sterilization component 330 is disposed between the heat exchanger body 310 and the filter component 320 , and is used to sterilize the surface of the heat exchanger body 310 and the filter component 320 .

[0070] The fan coil unit of the present application is provided with a filter component 320 on the air inlet side of the heat exchanger to effectively filter out most of the dust particles, particulate pollutants and microbial impurities entering the air, thereby effectively preventing the heat exchange efficiency of the heat exchanger body 310 from being reduced due to dust accumulation.

[0071] The fan coil unit of the present application, by providing a sterilization component 330, can not only continuously and efficiently sterilize the surface of the heat exchanger body 310 to ensure its clean and sterile state, but can also simultaneously act on the filter component that has intercepted dust to prevent the filter component 320 from breeding bacteria.

[0072] In the fan coil unit of the present application, the filter component 320 not only performs the purification function, but also protects the sterilization component 330, effectively preventing the sterilization component 330 from accidental damage or accumulation of dirt, thereby ensuring the stable operation and long-term effectiveness of the entire sterilization system.

[0073] In some embodiments of the present application, Figure 3-Figure 5As shown, the heat exchanger body 310 includes a heat exchange tube 311. The heat exchange tube 311 may be a coil.

[0074] Heat exchange medium flows in the heat exchange tube 311 , and both ends of the heat exchange tube 311 are connected to an inlet tube 312 and an outlet tube 313 , respectively.

[0075] The heat exchange medium can be water, steam or refrigerant.

[0076] The inlet pipe 312 and the outlet pipe 313 may be located on the same side or on opposite sides of the heat exchange tube 311 .

[0077] In some embodiments of the present application, the heat exchanger body 310 further includes two left and right tube sheets 314 .

[0078] The left and right tube sheets 314 are fixed to the left and right ends of the heat exchange tube 311 respectively.

[0079] In some embodiments of the present application, the heat exchanger body 310 further includes two upper and lower guard plates, the guard plate located on the upper side is an upper guard plate 315 , and the guard plate located on the lower side is a lower guard plate 316 .

[0080] The upper guard plate 315 is connected to the upper ends of the two tube sheets 314 ; the lower guard plate 316 is fixedly connected to the lower ends of the two tube sheets 314 .

[0081] The heat exchange tube 311 is disposed in a cavity surrounded by two tube sheets 314 and two guard plates.

[0082] The cavity forms an air inlet cavity at the air inlet side of the heat exchange tube 311. The inlet of the air inlet cavity forms an air inlet port 110.

[0083] The filter component 320 is disposed in the air inlet cavity.

[0084] In some embodiments of the present application, the filter component 320 includes at least one layer of filter screen.

[0085] The filter can be a combination of one or more of a high efficiency filter, a cold catalyst filter, and an activated carbon filter.

[0086] In some embodiments of the present application, the filter component 320 also includes a filter frame that is arranged around the filter and fixedly connected to the filter; the filter frame provides physical support for one or more layers of the filter.

[0087] In order to facilitate the replacement and cleaning of the filter element 320, as Figure 4 and Figure 5 As shown, a drawer opening 3141 is provided on the tube plate 314 or the guard plate, and the filter component 320 is configured to be suitable for entering and exiting the air inlet cavity through the drawer opening 3141 .

[0088] When the pull-out opening 3141 is disposed on the tube plate 314 , the filter component 320 can be pulled in and out of the air inlet cavity along the left-right direction.

[0089] When the pull-out opening 3141 is provided on the guard plate, the filter component 320 can be pulled in and out of the air inlet cavity along the up and down directions.

[0090] In some embodiments of the present application, see Figure 5 A drawing opening 3141 is provided on one of the tube sheets 314 .

[0091] The upper and lower guard plates are provided with sliding grooves on the opposite surfaces thereof, which are opposite to the draw-out opening 3141. That is, the upper guard plate 315 is provided with an upper sliding groove 3151, see Figure 6 The lower guard plate 316 is provided with a sliding groove 3161, see Figure 7 .

[0092] The filter component 320 is disposed in the slide groove. The filter component 320 can slide along the slide groove and enter and exit the air inlet cavity through the pull-out opening 3141 .

[0093] Furthermore, a baffle 317 is provided on the drawer opening 3141 , and the baffle 317 is used to close or open the drawer opening 3141 .

[0094] The baffle 317 can be fixed to the tube sheet 314 by means of fasteners such as screws; after the baffle 317 is removed, the filter component 320 can be pulled out.

[0095] See also Figure 8 and Fig. 9 Screw holes 318 are respectively provided on the upper and lower ends of the tube plate 314 and the baffle plate 317 as well as the upper guard plate 315 and the lower guard plate 316.

[0096] The upper ends of the tube sheet 314 and the baffle 317 and the three screw holes 318 on the upper guard plate 315 are aligned and fixed by screwing in the screws.

[0097] The lower ends of the tube sheet 314 and the baffle 317 and the three screw holes 318 on the lower guard plate 316 are aligned and fixed by screwing in the screws.

[0098] In some embodiments of the present application, the sterilization component 330 is disposed in the air inlet cavity, located above the filter component 320 and the heat exchange tube 311, and will not block the air intake.

[0099] In some embodiments of the present application, the sterilization component 330 is an ultraviolet lamp, and the sterilization component 330 is fixed to the upper guard plate.

[0100] Specifically, the ultraviolet lamp includes a lamp holder electric control box 331 and a lamp tube 332 connected to the lamp holder electric control box 331. Fig.10 .

[0101] The lamp holder electric control box 331 can be fixed on the upper guard plate 315 , and the lamp tube 332 is disposed below the upper guard plate 315 .

[0102] The lamp stand electric control box 331 is arranged on the upper guard plate 315, which can prevent condensed water and the like from flowing into the lamp stand electric control box 331, and can effectively prevent the lamp stand electric control box 331 from becoming inoperative due to water ingress.

[0103] In order to facilitate wiring and fixing, Figure 8 As shown, a wire hole 3142 is opened on the tube plate 314, and the wire hole 3142 is used to pass the wires connected to the sterilization component 330.

[0104] In other embodiments of the present application, the sterilization component 330 may also be a plasma generator, which is used to release positive and negative ions into the air duct.

[0105] The energy generated by the collision and annihilation of positive and negative ions can decompose the bacteria on the heat exchanger body 310, the filter component 320 and in the air, achieving a sterilization effect. At the same time, the positive ions and negative ions entering the room can also kill the bacteria in the indoor air, further reducing the bacteria content in the indoor air.

[0106] The sterilization component 330 is connected to the control system of the fan coil unit, and the working state of the sterilization component 330 can be automatically controlled according to the actual operating conditions, thereby realizing intelligent management and energy-saving operation.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

[0108] For the convenience of explanation, the above description has been made in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations can be obtained. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A fan coil unit, comprising: A housing having an air inlet and an air outlet; A fan assembly, the fan assembly is arranged in the housing and is used to drive air to flow from the air inlet to the air outlet; A heat exchanger assembly, wherein the heat exchanger assembly is disposed in the housing and is located between the air supply port and the air inlet along the air flow direction; It is characterized in that The heat exchanger assembly includes a heat exchanger body; The heat exchanger assembly also includes a filter component and at least one sterilization component. The filter component is arranged on the air inlet side of the heat exchanger body to filter the air entering the heat exchanger body; the sterilization component is arranged between the heat exchanger body and the filter component to sterilize the surface of the heat exchanger body and the filter component.

2. The fan coil unit according to claim 1, characterized in that: The heat exchanger body comprises: A heat exchange tube, in which a heat exchange medium flows, and both ends of the heat exchange tube are respectively connected to an inlet pipe and an outlet pipe; Two left and right tube sheets, the left and right tube sheets are fixed to the left and right ends of the heat exchange tube; The upper and lower guard plates are connected to the upper ends of the two tube plates, and the lower guard plate is fixedly connected to the lower ends of the two tube plates. The heat exchange tube is arranged in a cavity formed by two tube sheets and two guard plates, and the cavity forms an air inlet cavity on the air inlet side of the heat exchange tube; the filter component is arranged in the air inlet cavity.

3. The fan coil unit according to claim 2, characterized in that: The tube plate or the guard plate is provided with a draw-out opening, and the filter component is configured to be suitable for entering and exiting the air inlet cavity through the draw-out opening.

4. The fan coil unit according to claim 3, characterized in that: The tube plate is provided with a pull-out opening, and the upper and lower guard plates are respectively provided with sliding grooves opposite to the pull-out opening, and the filter component is arranged in the sliding groove. The filter component slides along the sliding groove through the pull-out opening to enter and exit the air inlet chamber.

5. The fan coil unit according to claim 3, characterized in that: A baffle is provided on the drawer opening, and the baffle is used to close or open the drawer opening.

6. The fan coil unit according to claim 1, characterized in that: The filter component includes at least one layer of filter screen and a filter screen frame which is arranged around the filter screen and fixedly connected to the filter screen.

7. The fan coil unit according to any one of claims 2 to 5, characterized in that: The sterilization component is arranged in the air inlet cavity, and the sterilization component is located above the filter component and the heat exchange tube.

8. The fan coil unit according to claim 7, characterized in that: The sterilization component is an ultraviolet lamp, and the sterilization component is fixed on the upper guard plate.

9. The fan coil unit according to claim 8, characterized in that: The ultraviolet lamp comprises a lamp stand electric control box and a lamp tube connected to the lamp stand electric control box; the lamp stand electric control box is fixed on the upper guard plate, and the lamp tube is arranged below the upper guard plate.

10. The fan coil unit according to claim 7, characterized in that: The tube plate and / or the guard plate are provided with wire passing holes, and the wire passing holes are used for passing the wires connected to the sterilization component.

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