Silent air conditioner fan coil

Abstract

The utility model discloses a mute type air conditioner fan coil which aims at solving the problem that an existing fan coil is large in noise. The air conditioner comprises a shell, a fan, a heat exchanger and a water condensing disc, an air duct is arranged in the shell, the fan is arranged in the air duct, a sound insulation cover is arranged on the periphery of the fan, and the sound insulation cover comprises an inner metal sheet sound insulation layer, an outer plastic sound insulation layer and middle sound absorption cotton and is provided with ventilation holes with spiral protruding sound attenuation structures. A heat exchange tube of the heat exchanger is of an internal spiral structure, fins are in interference fit with the heat exchange tube, and the surfaces of the fins are provided with nanometer sound-absorbing coatings. A silencing plate is obliquely arranged in an air duct between the fan and the heat exchanger and is made of a composite material of a glass fiber base layer and a rubber damping layer, and honeycomb-shaped silencing holes are fully distributed in the surface of the silencing plate. Through the synergistic effect of structural design of the sound insulation cover, the sound absorption heat exchanger, the sound attenuation plate and the like, operation noise is effectively reduced, using comfort and environment friendliness of an air conditioner are improved, the fan coil device is suitable for various air conditioner systems, and a quiet using environment is created for a user.

Description

Technical Field

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

[0002] Fan coil units are commonly used terminal devices in central air conditioning systems. They mainly consist of a fan, heat exchanger, condensate pan, casing, and controller. The fan facilitates heat exchange between indoor air and the refrigerant in the heat exchanger, thereby regulating indoor temperature. However, existing fan coil units often generate significant noise during operation, which not only affects indoor comfort but can also disrupt users' lives and work. Therefore, it is necessary to design a silent air conditioning fan coil unit that can effectively reduce noise. Utility Model Content

[0003] In view of this, the present invention provides a silent air conditioning fan coil unit.

[0004] To achieve the above objectives, this utility model provides the following technical solution, comprising: a housing, wherein an air duct is formed inside the housing, a fan is disposed within the air duct, a heat exchanger is located on the air outlet side of the fan, a condensate tray is disposed below the heat exchanger for collecting condensate, and a soundproof cover is disposed around the fan, the soundproof cover comprising an inner soundproof layer, an outer soundproof layer, and a sound-absorbing material filled between the inner and outer soundproof layers, and the soundproof cover having multiple ventilation holes arranged in an array and having a sound-absorbing structure on its inner wall, the sound-absorbing structure being a spiral protrusion.

[0005] Preferably, in the above-mentioned silent air conditioner fan coil unit, the heat exchanger includes multiple heat exchange tubes and fins. The heat exchange tubes have an internal spiral structure, the fins are connected to the heat exchange tubes by an interference fit, and the fins are coated with a sound-absorbing coating, which is made of nano-sound-absorbing material.

[0006] Preferably, in the above-mentioned silent air conditioning fan coil unit, a sound-absorbing plate is provided in the air duct between the heat exchanger and the fan. The sound-absorbing plate is inclined and its surface is covered with honeycomb-shaped sound-absorbing holes. The sound-absorbing plate is made of composite material, including a base layer and a damping layer attached to both sides of the base layer. The base layer is a glass fiber board and the damping layer is made of rubber.

[0007] Preferably, in the above-mentioned silent air conditioner fan coil unit, a layer of sound insulation felt is attached to the inner wall of the shell. The thickness of the sound insulation felt is 3-5 mm, and its surface is provided with uniformly distributed hemispherical protrusions with a diameter of 2-3 mm.

[0008] Preferably, in the above-mentioned silent air conditioner fan coil unit, the fan blades adopt a special arc-shaped design, with an inwardly recessed arc-shaped groove at the leading edge of the blades and an outwardly protruding arc-shaped ridge at the trailing edge, and the thickness of the blades gradually increases radially from the inside to the outside.

[0009] Preferably, in the above-mentioned silent air conditioning fan coil unit, the bottom of the condensate pan is provided with a shock-absorbing rubber pad, which is distributed in a grid pattern, with a thickness of 10-15 mm and a mesh aperture of 5-8 mm.

[0010] Preferably, in the above-mentioned silent air conditioner fan coil unit, the drive shaft of the fan and the motor is connected by a flexible coupling. The flexible coupling includes two metal connecting discs and a rubber elastomer connected between the two connecting discs. The rubber elastomer has multiple metal reinforcing ribs distributed along the circumferential direction inside.

[0011] Preferably, in the above-mentioned silent air conditioner fan coil unit, a glass wool heat insulation and sound absorption layer is filled between the heat exchanger and the shell, the density of the glass wool heat insulation and sound absorption layer is 24-32 kg per cubic meter, and the thickness is 20-30 mm.

[0012] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a silent air conditioning fan coil unit. Through the above structural design, the soundproof cover can effectively block the noise generated by the operation of the fan from spreading outward, and its unique ventilation hole sound-absorbing structure further reduces noise; the sound-absorbing coating of the heat exchanger and the internal spiral heat exchange tube structure help reduce the noise generated when the refrigerant flows and the air passes through; the sound-absorbing plate plays a buffering and sound-absorbing role between the fan outlet and the heat exchanger. All these factors work together to reduce the operating noise of the entire fan coil unit, providing users with a quiet and comfortable operating environment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the silent air conditioner fan coil unit of this utility model.

[0015] In the diagram: 1-shell, 2-fan, 3-heat exchanger, 4-condensate pan, 5-soundproof cover, 51-inner soundproof layer, 52-outer soundproof layer, 53-sound-absorbing material, 54-ventilation hole, 55-sound-absorbing structure. Detailed Implementation

[0016] 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.

[0017] Please see the appendix Figure 1 This utility model discloses a silent air conditioning fan coil unit.

[0018] like Figure 1 As shown, the silent air conditioner fan coil unit of this utility model includes a housing 1, a fan 2, a heat exchanger 3, and a condensate pan 4. An air duct is formed inside the housing 1, the fan 2 is installed inside the air duct, the heat exchanger 3 is located on the air outlet side of the fan 2, and the condensate pan 4 is installed below the heat exchanger 3 to collect condensate.

[0019] A soundproof cover 5 is installed around the fan 2. The soundproof cover 5 includes an inner soundproof layer 51, an outer soundproof layer 52, and sound-absorbing material 53 filled between the inner and outer soundproof layers. The inner soundproof layer 51 is a thin metal plate, the outer soundproof layer 52 is made of plastic, and the sound-absorbing material 53 is sound-absorbing cotton. The soundproof cover 5 has multiple ventilation holes 54, which are arranged in an array and have a sound-absorbing structure 55 on their inner wall. The sound-absorbing structure 55 is a spiral protrusion. When the fan 2 is running, the soundproof cover 5 can block most of the noise from passing through. When air passes through the ventilation holes 54, the spiral protrusion sound-absorbing structure 55 reflects and interferes with the sound waves generated by the airflow, thereby reducing noise.

[0020] The heat exchanger 3 includes multiple heat exchange tubes and fins. The heat exchange tubes have an internal spiral structure, which allows the refrigerant to flow more smoothly inside the tubes and reduces refrigerant flow noise. The fins are connected to the heat exchange tubes with an interference fit, and the surface of the fins 32 is coated with a sound-absorbing coating (not shown in detail in the figure). The sound-absorbing coating is made of nano-sound-absorbing material, which can absorb the noise generated when air passes through the heat exchanger 3.

[0021] Inside the duct, a sound-absorbing plate 6 is installed between the heat exchanger 3 and the fan 2. The sound-absorbing plate 6 is inclined and its surface is covered with honeycomb-shaped sound-absorbing holes. The sound-absorbing plate 6 is made of composite material, including a base layer and damping layers attached to both sides of the base layer. The base layer is made of fiberglass board, and the damping layers are made of rubber. When the air blown out by the fan 2 passes through the sound-absorbing plate 6, the noise is reflected and absorbed multiple times within the sound-absorbing holes. At the same time, the damping layers can dissipate vibration energy, further reducing noise.

[0022] In summary, the silent air conditioning fan coil unit of this utility model effectively reduces noise during operation and improves the comfort and environmental friendliness of the air conditioning system by adopting a unique structural design in key components such as the fan and heat exchanger.

[0023] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0024] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A silent type air conditioner fan-coil, characterized by, The utility model relates to a kind of air-cooled condensers, including: Shell (1), the shell (1) inside is formed with air duct, the fan (2) is arranged in air duct, heat exchanger (3) is located at the air outlet side of fan (2), condensate pan (4) is arranged below heat exchanger (3) for collecting condensate, the outer periphery of fan (2) is provided with soundproof cover (5), the soundproof cover (5) includes inner sound insulation layer (51), outer sound insulation layer (52) and sound-absorbing material (53) filled between inner and outer sound insulation layer (52), soundproof cover (5) is provided with multiple ventilation holes (54), ventilation hole (54) is arrayed distribution and its inner wall is provided with sound-absorbing structure (55), sound-absorbing structure (55) is helical projection.

2. The silent air conditioner fan-coil according to claim 1, characterized in that, The heat exchanger (3) includes a plurality of heat exchange tubes and fins, the heat exchange tubes are internally helical structures, the fins are connected with the heat exchange tubes by interference fit, and the surface of the fins is coated with a sound-absorbing coating made of nano sound-absorbing material (53).

3. The silent type air conditioner fan-coil according to claim 1, wherein, In the air duct, between the heat exchanger (3) and the fan (2), a sound-absorbing plate (6) is arranged, the sound-absorbing plate (6) is arranged obliquely and its surface is covered with honeycomb-shaped sound-absorbing holes, the sound-absorbing plate (6) is made of composite material, including a base layer and damping layers attached to both sides of the base layer, the base layer is a glass fiber plate, and the damping layers are made of rubber material.

4. The silent air conditioner fan (2) coil according to claim 1, characterized in that, A layer of soundproof felt is attached to the inner wall of the shell (1), the thickness of the soundproof felt is 3-5 mm, and the surface of the soundproof felt is provided with uniformly distributed semispherical protrusions, the diameter of the semispherical protrusions is 2-3 mm.

5. The silent type air conditioner fan-coil of claim 1, wherein, The blades of the fan (2) are designed in a special arc shape, the leading edge of the blade has an arc-shaped groove recessed inward, the trailing edge has an arc-shaped rib protruding outward, and the thickness of the blade gradually increases from inside to outside along the radial direction.

6. The silent type air conditioner fan-coil of claim 1, wherein, The bottom of the condensate pan (4) is provided with a shock-absorbing rubber pad, the shock-absorbing rubber pad is distributed in a grid shape, the thickness of the shock-absorbing rubber pad is 10-15 mm, and the aperture of the grid is 5-8 mm.

7. The silent type air conditioner fan-coil of claim 1, wherein The transmission shaft of the fan (2) and the motor is connected through a flexible coupling, the flexible coupling includes two metal connecting discs and a rubber elastomer connected between the two connecting discs, and the rubber elastomer is provided with multiple metal reinforcing ribs distributed in the circumferential direction inside.

8. The silent type air conditioner fan-coil of claim 1, wherein, The heat exchanger (3) and the shell (1) are filled with a glass wool heat-insulating and sound-absorbing layer, the density of the glass wool heat-insulating and sound-absorbing layer is 24-32 kg / m3, and the thickness is 20-30 mm.

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