Noise reduction structure for high-air-pressure fan coil

Abstract

The utility model relates to the technical field of coil pipe noise reduction, and solves the problem of poor effect of the existing common noise reduction means. The noise reduction structure for the high-air-pressure fan coil comprises a machine box and the coil which is arranged in the machine box and used for adjusting indoor air parameters, and fans and noise reduction assemblies arranged among the multiple fans are arranged in the machine box. The noise reduction assembly comprises a first sound absorption plate and a second sound absorption plate which are arranged on one side of the multiple draught fans, a third sound absorption plate is arranged between the first sound absorption plate and the draught fans and between the second sound absorption plate and the draught fans, and the first sound absorption plate, the second sound absorption plate and the third sound absorption plate each comprise an outer frame and a grid installed in the outer frame. A rock wool material used for sound absorption is installed on the grid in the outer frame in a limited mode, the first sound absorption plate, the second sound absorption plate and the third sound absorption plate are detachably installed on the machine box through installation pieces, and the installation pieces comprise hooks installed on the outer frame.

Description

Technical Field

[0001] The utility model relates to the technical field of coil noise reduction, in particular to a noise reduction structure for a high-pressure fan coil. Background Art

[0002] The coil is an important terminal component of the air conditioning system and is a commonly used terminal device for cooling and heating. If the connected pipeline is relatively long, the fan speed is often increased to increase the static pressure of the air supply to overcome the resistance caused by the long pipeline. However, the increase in fan speed will also increase the noise, thus creating a practical need for noise reduction. The existing commonly used noise reduction methods have some defects:

[0003] 1. The effect of sound insulation only relying on the shell of the unit is not obvious.

[0004] 2. If a silencer is installed on the air supply duct of the unit, it will take up more space and be more expensive.

[0005] 3. If a silencer is designed inside the unit, the unit will be too large in size, which will affect installation and will not be easy to disassemble and repair. Utility Model Content

[0006] In view of the shortcomings of the prior art, the utility model provides a noise reduction structure for a high-pressure fan coil unit, which solves the problem that the existing commonly used noise reduction means have poor effects.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a noise reduction structure for a high-pressure fan coil unit, comprising a chassis and a coil unit arranged inside the chassis for adjusting indoor air parameters, wherein a fan and a noise reduction component arranged between several fans are arranged inside the chassis;

[0008] The noise reduction component includes a sound absorbing panel 1 and a sound absorbing panel 2 placed on one side of a plurality of fans, and a sound absorbing panel 3 is arranged between the fans of the sound absorbing panel 1 and the sound absorbing panel 2;

[0009] The first sound absorbing panel, the second sound absorbing panel and the third sound absorbing panel all include an outer frame and a grid installed in the outer frame, and the grid is limitedly installed with rock wool material for sound absorption in the outer frame;

[0010] The sound absorbing panel 1, the sound absorbing panel 2 and the sound absorbing panel 3 are all detachably mounted on the chassis through mounting parts.

[0011] In one embodiment, the mounting member includes a hook installed on the outer frame, a hook fixing member installed on the chassis is arranged at the position where the hook cooperates with the outer frame to limit the position, and a tightening clamp is arranged on one side of the hook fixing member for limiting the forward and backward movement of the outer frame.

[0012] In one embodiment, the outer frames of the sound absorbing panel 1, the sound absorbing panel 2 and the sound absorbing panel 3 include a straight panel and an inclined panel connected to the straight panel, and the inclined panels of the sound absorbing panel 1 and the sound absorbing panel 2 extend toward each other.

[0013] In one embodiment, the inclined plates of the first sound absorbing plate and the second sound absorbing plate are angled with the straight plate and extend in a single direction, and the inclined plate of the third sound absorbing plate is Y-shaped for dividing the sound absorbing cavities of adjacent fans.

[0014] In one embodiment, the hook is mounted on a straight plate, and the setting of the tightening clamp is adapted to the thickness of the straight plate.

[0015] In one embodiment, the tightening clamp is mounted on a side panel of the chassis, and an opening adapted to the size of the hook is provided on the hook fixing member.

[0016] In one embodiment, a limit strip groove is provided on the straight plate structure connected to the tightening clamp.

[0017] Compared with the prior art, the utility model provides a noise reduction structure for a high wind pressure fan coil unit, which has the following beneficial effects:

[0018] In the technical solution disclosed by the utility model, sound absorbing panels 1, 2 and 3 are installed between several fans inside the chassis, starting from the noise propagation path, and taking sound absorption measures at the shortest distance of noise propagation, so that the noise is gradually attenuated by the overall effect of the noise reduction component during the propagation process, and combined with the sound insulation effect of the casing itself, the degree of noise reduction requirement is improved.

[0019] By means of the structural arrangement of the first sound absorbing board, the second sound absorbing board and the third sound absorbing board in the utility model, the contact area with the air suction channel of the fan is increased, thereby increasing the effect that can be produced.

[0020] The detachable connection of the sound absorbing panel 1, the sound absorbing panel 2 and the sound absorbing panel 3 by the mounting parts and the combination of the hook and the hook fixing part can quickly establish or cancel the connection, thereby enhancing the rapid installation or removal of the sound absorbing panel 1, the sound absorbing panel 2 and the sound absorbing panel 3 in the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2This is a schematic diagram of the structure of the noise reduction component of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the mounting piece of the utility model;

[0025] Figure 4 This is a structural schematic diagram of a sound-absorbing panel of the utility model;

[0026] Figure 5 This is a schematic diagram of the limit strip groove structure of the utility model.

[0027] In the figure: 1. chassis; 2. coil; 3. fan; 4. noise reduction component; 41. sound absorbing panel 1; 42. sound absorbing panel 2; 43. sound absorbing panel 3; 44. outer frame; 441. straight board; 442. inclined board; 45. grid; 46. rock wool; 5. mounting part; 51. hook; 52. hook fixing part; 53. tightening clamp; 6. limit strip groove. DETAILED DESCRIPTION

[0028] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0029] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] Figure 1-Figure 5This is an embodiment of the utility model. The specific problem addressed by this specific embodiment is that in reality, due to different installation positions, the pipe connected to the coil 2 will be relatively long. When this happens, the fan 3 speed is often increased to increase the static pressure of the air supply, thereby overcoming the resistance caused by the long pipe. However, the increase in the fan 3 speed will also increase the noise, thus creating a practical need for noise reduction. There are three commonly used noise reduction methods. One is to rely solely on the sound insulation of the unit's casing, but its shortcomings are also obvious. The thickness of the casing also has a significant impact on the sound insulation effect, which can easily lead to increased costs. The second method is to install a silencer box or design a silencer board on the installation project. Both methods take up more space and are costly, and are not easy to disassemble and repair. Based on the above, this solution describes a noise reduction structure for high-pressure fan coil units. By installing sound absorbing panels 1 41, 2 42 and 3 43 between the fans 3 inside the chassis 1, starting from the noise propagation path, sound absorbing measures are taken at the shortest distance of noise propagation, so that the noise is gradually attenuated by the overall effect of the noise reduction component 4 during the propagation process, and the sound insulation effect of the casing itself is combined to improve the degree of noise reduction.

[0031] The structure described in this scheme specifically includes a chassis 1, a fan 3 inside the chassis 1, and a noise reduction component 4 placed between the fans 3. The noise reduction component 4 includes a sound absorbing panel 1 41 and a sound absorbing panel 2 42 placed on one side of the air suction position of the fans 3. In this embodiment, the specific number of fans 3 is limited to two for example. The sound absorbing panel 1 41 and the sound absorbing panel 2 42 are arranged at the left and right ends of the two fans 3, and the sound absorbing panel 3 43 is arranged between the two fans 3. The sound absorbing panel 1 41, the sound absorbing panel 2 42 and the sound absorbing panel 3 43 are installed between the fans 3 in an interlaced manner to avoid occupying too much space in the chassis 1, and the sound absorbing panel 1 41, the sound absorbing panel 2 42 and the sound absorbing panel 3 43 are all detachably installed on the chassis 1 through the mounting member 5, and can be quickly installed in the chassis 1 or quickly removed from the chassis 1, so as to facilitate maintenance or replacement.

[0032] Based on the purpose of noise reduction of the noise reduction component 4, the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 all include an outer frame 44 and a grid 45 installed in the outer frame 44. The grid 45 is limitedly installed with a rock wool 46 material for sound absorption in the outer frame 44. The rock wool 46 has a sound absorption effect and has a better noise reduction effect on the noise generated by the operation of the fan 3. The outer frame 44 and the grid 45 both play a fixing role on the rock wool 46. In order to increase the contact area between the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 and the air suction channel of the fan 3, thereby increasing the effect that can be produced. The outer frame 44 of the sound absorbing panel 1 41, the sound absorbing panel 2 42 and the sound absorbing panel 3 43 includes a straight plate 441 and an inclined plate 442 connected to the straight plate 441. The inclined plates 442 of the sound absorbing panel 1 41 and the sound absorbing panel 2 42 are arranged at an angle with the straight plate 441 and extend toward each other. The inclined plate 442 of the sound absorbing panel 3 43 is Y-shaped and is used to divide the sound absorbing cavity of the adjacent fan 3.

[0033] In order to be able to be quickly installed in the chassis 1 or quickly removed from the chassis 1, the mounting member 5 is specifically provided with a hook 51 installed on the top surface of the straight plate 441, and a hook fixing member 52 installed on the bottom plate and the top plate of the chassis 1 is provided in cooperation with the hook 51 for limiting the position of the outer frame 44. The hook fixing member 52 is provided with an opening adapted to the size of the hook 51. Through the combination of the hook 51 and the hook fixing member 52, the connection can be quickly established or cancelled, thereby enhancing the convenience of repairing or replacing the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43. A U-shaped tightening clamp 53 for limiting the forward and backward movement of the outer frame 44 is provided on the side panel of the chassis 1, and the setting of the tightening clamp 53 is adapted to the thickness of the straight plate 441. When installing the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 in the chassis 1, firstly, the outer frame 44 of the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 is placed in the tightening clamp 53, and then the hook 51 is hung on the hook fixing member 52 through the opening, that is, the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 are installed in the chassis 1. However, in this embodiment, in order to avoid that the structural weight of the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 is applied to the hook 51 and the hook fixing member 52, the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 are applied to the hook 51 and the hook fixing member 52. 2, in specific production, according to actual conditions, a limiting strip groove 6 can be opened on the straight plate 441 structure connected to the tightening clamp block 53, and the end position of the limiting strip groove 6 is the position where the tightening clamp block 53 stops after the connection between the hook 51 and the hook fixing member 52 is completed. This setting method can disperse the force of the sound absorbing board 1 41, the sound absorbing board 2 42 and the sound absorbing board 3 43 on the hook fixing member 52, but on the other hand, a process is added in the production process. Therefore, this setting can be selected according to actual production conditions and usage environment.

[0034] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A noise reduction structure for a high-pressure fan coil unit, comprising a chassis (1) and a coil unit (2) arranged inside the chassis (1) for adjusting indoor air parameters, characterized in that: The chassis (1) is provided with a fan (3) and a noise reduction component (4) disposed between a plurality of fans (3); The noise reduction component (4) comprises a first sound absorbing panel (41) and a second sound absorbing panel (42) disposed on one side of the plurality of fans (3); a third sound absorbing panel (43) is disposed between the fans (3) of the first sound absorbing panel (41) and the second sound absorbing panel (42); The sound absorbing panel 1 (41), the sound absorbing panel 2 (42) and the sound absorbing panel 3 (43) all include an outer frame (44) and a grid (45) installed in the outer frame (44), and the grid (45) is limitedly installed with a rock wool (46) material for sound absorption in the outer frame (44); The sound absorbing panel 1 (41), the sound absorbing panel 2 (42) and the sound absorbing panel 3 (43) are all detachably mounted on the chassis (1) via a mounting member (5).

2. A noise reduction structure for a high-pressure fan coil unit according to claim 1, characterized in that: The mounting member (5) comprises a hook (51) mounted on the outer frame (44); a hook fixing member (52) mounted on the chassis (1) is arranged at a position where the hook (51) cooperates with the position limiting outer frame (44); and a tightening clamp (53) for limiting the forward and backward movement of the outer frame (44) is arranged on one side of the hook fixing member (52).

3. The noise reduction structure for a high-pressure fan coil unit according to claim 1, characterized in that: The outer frames (44) of the first sound absorbing board (41), the second sound absorbing board (42) and the third sound absorbing board (43) include a straight board (441) and an inclined board (442) connected to the straight board (441), and the inclined boards (442) of the first sound absorbing board (41) and the second sound absorbing board (42) extend toward each other.

4. The noise reduction structure for a high-pressure fan coil unit according to claim 3, characterized in that: The inclined plates (442) of the first sound absorbing plate (41) and the second sound absorbing plate (42) are arranged at an angle with the straight plate (441) and extend in a single direction, and the inclined plate (442) of the third sound absorbing plate (43) is Y-shaped and is used to divide the sound absorbing cavity of adjacent fans (3).

5. The noise reduction structure for a high-pressure fan coil unit according to claim 2, characterized in that: The hook (51) is installed on the straight plate (441), and the setting of the tightening clamp (53) is adapted to the thickness of the straight plate (441).

6. The noise reduction structure for a high-pressure fan coil unit according to claim 2, characterized in that: The tightening clamp (53) is mounted on the side plate of the chassis (1), and the hook fixing member (52) is provided with an opening adapted to the size of the hook (51).

7. The noise reduction structure for a high-pressure fan coil unit according to claim 5, characterized in that: A limit strip groove (6) is provided on the straight plate (441) structure connected to the tightening clamp block (53).

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