Air outlet silencing box of fan coil

Abstract

The utility model belongs to the technical field of air conditioners, and particularly relates to an air outlet silencing box of a fan coil, which comprises a fan, a box body and a plurality of sound absorption partition plates arranged in the box body, the back surface of the box body is arranged at an air outlet of the fan, the front surface of the box body is opened outwards, and the box body comprises four foaming plates. The four foaming plates surround an air outlet of the fan, a plurality of sliding grooves are formed in the inner walls, located on the two sides of the air outlet of the fan, of the foaming plates, each sliding groove is provided with one sound absorption partition plate, and air guide grooves communicated with the air outlet are formed between the sound absorption partition plates. The surface of each sound absorption partition plate is provided with a noise reduction structure, noise output to the outside of the box body is reduced, the heat preservation effect can be achieved by arranging the foaming plate, condensation on the outer surface of the box body is avoided, loss of the air outlet temperature is reduced, the energy-saving effect is good, meanwhile, the air volume of the fan coil is guaranteed, and the service life of the fan coil is prolonged. The effects of reducing noise and keeping the air volume are achieved to the maximum extent.

Description

Technical Field

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

[0002] The fan coil unit is referred to as a fan coil. It is one of the terminal devices of the air conditioning system, which consists of a small fan, a motor and a coil (air heat exchanger). When chilled water or hot water flows through the coil tube, it exchanges heat with the air outside the tube, so that the air is cooled, dehumidified or heated to adjust the indoor air parameters. It is a commonly used terminal device for cooling and heating; fan coils are widely used in hotels and offices. In order to provide better rest and office conditions, these occasions often have higher requirements for a quiet environment, so the noise requirements for fan coils are relatively strict. The noise of traditional fan coils is difficult to meet the requirements. In most cases, in order to reduce noise, the solution of reducing the air volume of the unit will be adopted, which will cause the performance of the unit to be unable to meet the indoor load and maintain the room temperature of the indoor environment. Utility Model Content

[0003] The utility model aims to provide an air outlet silencer box for a fan coil unit, aiming to solve the technical problem in the prior art that the air volume of the unit is reduced in order to reduce noise, and the room temperature of the indoor environment cannot be maintained.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides an air outlet silencer box for a fan coil unit, comprising a fan, a box body and a plurality of sound-absorbing baffles arranged in the box body, the back of the box body is installed on the air outlet of the fan, and the front side is open outward, the box body comprises four foam panels, and the four foam panels surround the air outlet of the fan, wherein the inner walls of the foam panels on both sides of the air outlet of the fan are provided with a plurality of slide grooves, and each of the slide grooves is respectively installed with a sound-absorbing baffle, and an air guide groove connected to the air outlet is formed between each of the sound-absorbing baffles, and a sound-absorbing structure is provided on the surface of each of the sound-absorbing baffles.

[0005] Preferably, each of the sound-absorbing baffles is provided with a windward rounded corner on a side close to the air outlet of the fan.

[0006] Preferably, each of the slide grooves extends toward the front side of the box body and opens outwards.

[0007] Preferably, the sound-absorbing structure includes a plurality of holes, and the plurality of holes are all arranged through the surface of the sound-absorbing baffle.

[0008] Preferably, the surface of each of the sound-absorbing baffles is also covered with a corrugated surface, and a plurality of the holes are evenly distributed on the crests and troughs of the corrugated surface.

[0009] Preferably, the upper and lower ends of the hole are connected to a wave crest and a wave valley respectively.

[0010] Preferably, the sound-absorbing baffle is made of ceramic.

[0011] The above one or more technical solutions in the air outlet silencer box of the fan coil unit provided by the embodiment of the utility model have at least one of the following technical effects:

[0012] When in use, the fan conveys air through the fan coil and finally blows out through the box; when the air enters the box, it enters the air guide grooves between the sound-absorbing baffles. At the same time, the noise generated by the air flow and the noise generated during the operation of the fan enter the box. The noise sound waves are reflected on the upper and lower sides of the air guide grooves and are absorbed by the sound-absorbing baffles during the reflection process, reducing the noise output outside the box. In addition, by setting the foam board, the insulation effect can be met, condensation on the outer surface of the box can be avoided, and the loss of outlet air temperature can be reduced. The energy-saving effect is better, while the air volume of the fan coil is guaranteed, achieving the maximum effect of noise reduction and maintaining air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the overall structure of the air outlet silencer box of the fan coil unit provided in an embodiment of the utility model;

[0014] Figure 2 A schematic diagram of the structure of a fan of an air outlet silencer box of a fan coil unit provided in an embodiment of the utility model;

[0015] Figure 3 A schematic diagram of the structure of a foam plate of an air outlet silencer box of a fan coil unit provided in an embodiment of the utility model;

[0016] Figure 4 A schematic structural diagram of a box body of an air outlet silencer box of a fan coil unit provided in an embodiment of the utility model;

[0017] Figure 5 A schematic diagram of a sound-absorbing baffle of an air outlet silencer box of a fan coil unit provided in an embodiment of the utility model;

[0018] Figure 6 A cross-sectional view of a sound-absorbing baffle of an air outlet silencer box of a fan coil unit provided in an embodiment of the utility model.

[0019] Among them, the reference numerals in the figure are:

[0020] 1-fan, 11-air outlet, 2-box, 21-foam board, 211-slide, 3-sound-absorbing baffle, 31-air guide groove, 32-windward fillet, 33-hole, 34-corrugated surface. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0022] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] In addition, 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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0025] In one embodiment of the present invention, Figures 1 to 6 As shown, an air outlet silencer box of a fan coil unit is provided, comprising a fan 1, a box body 2 and a plurality of sound absorbing baffles 3 arranged in the box body 2, the back of the box body 2 is installed on the air outlet 11 of the fan 1, and the front is open outward, the box body 2 comprises four foam panels 21, and the four foam panels 21 surround the air outlet 11 of the fan 1, wherein the inner walls of the foam panels 21 located on both sides of the air outlet 11 of the fan 1 are provided with a plurality of slide grooves 211, and each of the slide grooves 211 is respectively installed with a sound absorbing baffle 3, and an air guide groove 31 connected with the air outlet 11 is formed between each of the sound absorbing baffles 3, and a sound-absorbing structure is provided on the surface of each of the sound absorbing baffles 3.

[0026] Furthermore, each of the sound-absorbing baffles 3 is provided with a windward rounded corner 32 on one side close to the air outlet 11 of the fan 1. Specifically, when the fan 1 delivers air into the box body 2, the air first contacts the sound-absorbing baffle 3, and the air is diverted into each air guide groove 31 through the cutting of the sound-absorbing baffle 3. The air generates friction in the process of contacting the sound-absorbing baffle 3, thereby generating noise. By providing the windward rounded corner 32, the friction with the air can be reduced through the rounded surface, thereby reducing noise and achieving a better noise reduction effect.

[0027] Furthermore, each of the slide grooves 211 extends toward the front of the box body 2 and opens outward. Specifically, the slide grooves 211 open toward the air outlet of the box body 2. During use, the upper and lower surfaces of each sound-absorbing baffle 3 rub against the air, which causes static electricity to be generated on the upper and lower surfaces of the sound-absorbing baffle 3 during use, which attracts dust in the air. After long-term use, the upper and lower sides of the sound-absorbing baffle 3 are usually covered with a large amount of dust. Therefore, cleaning the sound-absorbing baffle 3 also affects the noise reduction effect of the sound-absorbing baffle 3. When cleaning, the sound-absorbing baffle 3 is slid out toward the air outlet of the box body 2 through the slide grooves 211 on both sides, so that the sound-absorbing baffle 3 can be easily disassembled and assembled, which is convenient for cleaning.

[0028] Furthermore, the sound-absorbing structure includes a plurality of holes 33, and the plurality of holes 33 are all arranged through the surface of the sound-absorbing baffle 3. Specifically, the fan 1 blows air into the box body 2, and the noise generated by the air flow and the noise generated by the fan 1 during operation enter the box body 2, and the noise sound waves are reflected on the upper and lower sides of the air guide groove 31. During the reflection process, the noise sound waves can enter each hole 33, thereby further consuming the noise sound waves and achieving a further noise reduction effect.

[0029] Furthermore, the surface of each of the sound-absorbing baffles 3 is also covered with a corrugated surface 34, and a plurality of the holes 33 are evenly distributed on the crests and troughs of the corrugated surface 34. Specifically, the fan 1 blows air into the box body 2, and at the same time, the noise generated by the air flow and the noise generated by the fan 1 during operation enter the box body 2, and the noise sound waves are reflected on the upper and lower sides of the air guide groove 31. By providing the corrugated surface 34, the number of reflections of the noise sound waves in the air guide groove 31 can be increased, and the consumption of the noise sound waves when passing through the box body 2 is further enhanced, and the noise that can pass through the box body 2 is reduced, so as to achieve a better noise reduction effect.

[0030] Furthermore, the upper and lower ends of the hole 33 are connected to a wave crest and a wave trough respectively. Specifically, the hole 33 is arranged in two forms. When the upper part of the hole 33 passes through the peak of the wave crest located at the top of the sound-absorbing baffle 3 to open outward, the lower part of the hole 33 passes through the bottom of the wave trough located at the bottom of the sound-absorbing baffle 3 to open outward; when the upper part of the hole 33 passes through the bottom of the wave trough located at the top of the sound-absorbing baffle 3 to open outward, the lower part of the hole 33 passes through the peak of the wave crest located at the bottom of the sound-absorbing baffle 3 to open outward; when the noise sound wave is reflected on the upper and lower sides of the air guide groove 31, the corrugated surface 34 can increase the reflection consumption of the noise sound wave. At the same time, after the noise sound wave contacts the corrugated surface 34, a part of the sound wave can enter the hole 33 for further reflection consumption, or pass through the hole 33 to enter another air guide groove 31 for reflection, thereby increasing the consumption of sound wave energy and achieving the maximum noise reduction effect.

[0031] Furthermore, the sound-absorbing baffle 3 is made of ceramic. Specifically, the use of porous materials can improve the sound-absorbing effect of the sound-absorbing baffle 3. The ceramic material is light in weight, stable in structure, easy to maintain, and can better adapt to the working environment of the air outlet 11, saving use costs.

[0032] Working principle: When in use, the fan 1 transports air through the fan 1 coil, and finally passes through the box 2 to be blown out; when the air enters the box 2, it enters the air guide groove 31 between the sound-absorbing baffles 3. At the same time, the noise generated by the air flow and the noise generated by the fan 1 during operation enter the box 2. The noise sound waves are reflected in the air guide groove 31 and are absorbed by the sound-absorbing baffles 3 during the reflection process, thereby reducing the noise output outside the box 2. In addition, by setting the foam board 21, the heat preservation effect can be met, condensation on the outer surface of the box 2 can be avoided, and the loss of the air outlet temperature can be reduced. The energy-saving effect is better, and the noise reduction and energy-saving effects are taken into account to the greatest extent.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fan coil unit air outlet silencer box, characterized in that: The utility model comprises a fan, a box body and a plurality of sound-absorbing baffles arranged in the box body, the back side of the box body is installed on the air outlet of the fan, and the front side is open outward, the box body comprises four foam boards, and the four foam boards surround the air outlet of the fan, wherein the inner walls of the foam boards located on both sides of the air outlet of the fan are provided with a plurality of slide grooves, each of the slide grooves is respectively installed with a sound-absorbing baffle, and an air guide groove connected with the air outlet is formed between each of the sound-absorbing baffles, and a sound-absorbing structure is provided on the surface of each of the sound-absorbing baffles.

2. The air outlet silencer box of the fan coil unit according to claim 1, characterized in that: Each of the sound-absorbing baffles is provided with a windward rounded corner on a side close to the air outlet of the fan.

3. The air outlet silencer box of the fan coil unit according to claim 1, characterized in that: Each of the sliding grooves extends toward the front of the box body and opens outwards.

4. The air outlet silencer box of the fan coil unit according to any one of claims 1 to 3, characterized in that: The sound-absorbing structure includes a plurality of holes, and the plurality of holes are all arranged through the surface of the sound-absorbing partition.

5. The air outlet silencer box of the fan coil unit according to claim 4, characterized in that: The surface of each sound-absorbing baffle is also covered with a corrugated surface, and a plurality of holes are evenly distributed on the crests and troughs of the corrugated surface.

6. The air outlet silencer box of the fan coil unit according to claim 5, characterized in that: The upper and lower ends of the hole are respectively connected with a wave crest and a wave valley.

7. The air outlet silencer box of the fan coil unit according to claim 1, characterized in that: The sound-absorbing partition is made of ceramic.

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