Air outlet noise reduction device of central air conditioner

Abstract

The utility model discloses an air outlet noise reduction device of a central air conditioner, which belongs to the technical field of central air conditioners and comprises an air conditioner air outlet, an air conditioner air outlet pipe and a funnel-shaped groove, the air speed can be reduced when air in the air conditioner air outlet pipe is diffused outwards through an air outlet expansion port, and further the air noise at the air outlet end of the air conditioner air outlet pipe can be reduced. Through the arrangement of the arc-shaped inner wall, noise generated by friction between air and the inner wall in the air outlet pipe of the air conditioner can be reduced, through the arrangement of the chamfering notches, the air can better enter the air outlet pipe of the air conditioner, and the situation that the air collides with the interior of the funnel-shaped groove, and then turbulent flow is generated between the air and incoming fresh air is reduced; the sound insulation cotton layer can isolate internal noise from diffusing outwards, so that the noise reduction effect is better, the funnel-shaped groove is narrow in upper portion and wide in lower portion, the air speed of entering air can be reduced, then air noise can be reduced, the air conditioner air outlet pipes on the two sides communicate with the bottom of the funnel-shaped groove, and air can better enter the air conditioner air outlet pipes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to central air conditioning technical field, specifically, relate to a central air conditioning air outlet noise reduction device. BACKGROUND

[0002] The central air conditioning system is composed of one or more cold and heat source systems and multiple air conditioning systems, which is different from the traditional refrigerant type air conditioner, and adopts the principle of liquid gasification refrigeration to provide the required cold quantity for the air conditioning system to offset the heat load of the indoor environment, and the heating system provides the required heat for the air conditioning system to offset the cooling and heating load of the indoor environment.

[0003] The central air conditioning air outlet is the terminal equipment for air outlet and air return in the central air conditioning system, and is an air distribution equipment. The air conditioner air outlet sends the refrigerated or heated air to the indoor environment, and the air return port absorbs the dirty air in the indoor environment. The two ends form the entire air circulation, which ensures the refrigeration and heating effect of the indoor environment and also ensures the refrigeration and comfort of the indoor air.

[0004] However, the air conditioner air outlet of the conventional central air conditioning system vibrates due to the pressure difference between the inside and outside during operation, and the noise is generated by the impact and friction of the air body with the inner wall of the pipeline during air transportation. Therefore, noise reduction treatment is required.

[0005] The utility model discloses a central air conditioning air outlet noise reduction device, including the air conditioner air outlet that communicates central air conditioning air conveying pipeline, the sound insulation cover is arranged in the air conditioner air outlet, the funnel type groove is located in the middle part of sound insulation cover, the inner wall of funnel type groove is paved with sound insulation cotton layer pad, and the both sides of funnel type groove are respectively connected with air conditioner air outlet pipe, one end of air conditioner air outlet pipe is provided with noise reduction assembly. The utility model discloses change conventional air conditioner air outlet structure, weaken noise in the propagation path of air body through multilayer, facilitate the output after the noise reduction treatment of the transportation of air body, facilitate the noise pollution of central air conditioning air outlet reduction.

[0006] The above-mentioned prior art still has the following defects: since the funnel-shaped groove is wide at the top and narrow at the bottom, the wind speed will increase when the wind enters from the large pipe diameter to the small pipe diameter, which will further increase the noise. Moreover, the two air conditioner air outlet pipes are located on the side walls of the funnel-shaped groove, so that the incoming wind will bounce off the bottom of the funnel-shaped groove and collide with the incoming wind, making the noise even larger. UTILITY MODEL CONTENTS

[0007] The purpose of this part is to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part and the abstract of the specification and the title of the application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the application, and such simplifications or omissions cannot be used to limit the scope of the application.

[0008] To solve the problem of the funnel-shaped slot being wide at the top and narrow at the bottom, which will increase the wind speed when the wind enters from the large pipe diameter to the small pipe diameter, thereby making the noise larger, and the air conditioner outlet pipes on both sides are located on the side wall of the funnel-shaped slot, so that the entering wind will bounce after contacting the bottom of the funnel-shaped slot and collide with the entering wind, making the noise larger, the present application adopts the following technical scheme.

[0009] A central air conditioner outlet noise reduction device, comprising an air conditioner outlet, the top of the air conditioner outlet is provided with an air inlet slot, the bottom of the air conditioner outlet is provided with a group of left and right air conditioner outlet pipes, the inside of the air conditioner outlet is provided with a funnel-shaped slot, the funnel-shaped slot is narrow at the top and wide at the bottom, the narrower end of the funnel-shaped slot is communicated with the air inlet slot, and the wider end of the bottom of the funnel-shaped slot is communicated with the air conditioner outlet pipes on both sides.

[0010] Preferably, the air outlet end of the air conditioner outlet pipe is fixedly connected with an air outlet expansion port, the curved portions on the air conditioner outlet pipe are provided with arc-shaped inner walls, and the inner wall of the communication end of the air conditioner outlet pipe with the funnel-shaped slot is provided with a chamfered slot.

[0011] Preferably, a filling assembly is installed in the inside of the funnel-shaped slot, and the filling assembly fills the dead angle between the air inlet end of the air conditioner outlet pipe and the funnel-shaped slot.

[0012] Preferably, the upper end of the filling air guide block is detachably connected with a second honeycomb hole plate, and the second honeycomb hole plate can disperse the air flow pressure of the entering wind in the funnel-shaped slot.

[0013] Preferably, the inside of the bending portion of the air conditioner outlet pipe on both sides is detachably connected with a first honeycomb hole plate, and the first honeycomb hole plate can disperse the air flow pressure of the wind entering the inside of the air conditioner outlet pipe.

[0014] Preferably, the outer wall of the air conditioner outlet pipe and the position close to the funnel-shaped slot of the air conditioner outlet are both provided with a sound insulation cotton layer.

[0015] Preferably, the filling assembly comprises a filling air guide block, the inside of the funnel-shaped slot is provided with the filling air guide block, and the filling air guide block fills the dead angle between the air inlet end of the air conditioner outlet pipe and the funnel-shaped slot.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、Through the setting of the funnel-shaped groove, the entering wind can be reduced in wind speed, thereby the wind noise can be reduced, through the communication of the air conditioner air outlet pipe on both sides with the bottom of the funnel-shaped groove, the wind can enter the air conditioner air outlet pipe better, the impact of the wind in the funnel-shaped groove is reduced, and the noise is reduced.

[0018] 2、Through the air outlet expansion opening, the wind in the air conditioner air outlet pipe can be reduced in wind speed when diffusing outward, thereby the wind noise of the air outlet end of the air conditioner air outlet pipe can be reduced, through the setting of the arc-shaped inner wall, the noise generated by the friction between the wind and the inner wall in the air conditioner air outlet pipe can be reduced, through the setting of the chamfered slot, the wind can enter the inner part of the air conditioner air outlet pipe better, the impact with the inner part of the funnel-shaped groove is reduced, and the disturbance with the incoming fresh air is reduced, through the sound insulation cotton layer, the internal noise can be isolated from diffusing outward, and the noise reduction effect is better.

[0019] 3、Through the filling of the filling air guide block in the filling assembly, the impact of the wind in the funnel-shaped groove is avoided, the wind can be guided to the air inlet end of the air conditioner air outlet pipe, and the noise is further reduced.

[0020] 4、Through the second honeycomb hole plate, the air flow pressure of the entering wind in the funnel-shaped groove can be dispersed, the wind noise is reduced, through the first honeycomb hole plate, the air flow pressure of the wind entering the inner part of the air conditioner air outlet pipe can be dispersed, and the noise is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a central air conditioner air outlet noise reduction device structure schematic view in the utility model;

[0022] Figure 2 It is an air conditioner air outlet structure schematic view in the utility model;

[0023] Figure 3 It is a filling assembly structure schematic view in the utility model;

[0024] Figure 4 It is a second honeycomb hole plate structure schematic view in the utility model;

[0025] Figure 5 It is a first honeycomb hole plate structure schematic view in the utility model.

[0026] The corresponding relationship between the annotations of the drawings and the component names in the drawings is as follows:

[0027] 100, air conditioner air outlet; 101, air inlet slot; 102, funnel-shaped groove; 103, sound insulation cotton layer;

[0028] 200, air conditioner air outlet pipe; 201, air outlet expansion opening; 202, arc-shaped inner wall; 203, chamfered slot; 204, first honeycomb hole plate;

[0029] 300, fill the air guide block; 301, the second honeycomb orifice plate. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings of the specification.

[0031] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0032] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the utility model. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. The utility model provides the following embodiments.

[0033] As shown in the figure, it is a central air conditioning air outlet noise reduction device structure schematic view of a preferred embodiment of the utility model, the central air conditioning air outlet noise reduction device of the embodiment, including air conditioning air outlet 100, the top of air conditioning air outlet 100 is provided with air inlet slot 101, the bottom of air conditioning air outlet 100 is provided with a group of left and right air conditioning air outlet pipe 200, in the embodiment, the wind enters and flows outwards through both sides air conditioning air outlet pipe 200 from air inlet slot 101. Figure 1 As shown in the figure, it is a central air conditioning air outlet noise reduction device structure schematic view of a preferred embodiment of the utility model, the central air conditioning air outlet noise reduction device of the embodiment, including air conditioning air outlet 100, the top of air conditioning air outlet 100 is provided with air inlet slot 101, the bottom of air conditioning air outlet 100 is provided with a group of left and right air conditioning air outlet pipe 200, in the embodiment, the wind enters and flows outwards through both sides air conditioning air outlet pipe 200 from air inlet slot 101.

[0034] Figure 2 As shown in the figure, it is a central air conditioning air outlet noise reduction device structure schematic view of a preferred embodiment of the utility model, the central air conditioning air outlet noise reduction device of the embodiment, including air conditioning air outlet 100, the top of air conditioning air outlet 100 is provided with air inlet slot 101, the bottom of air conditioning air outlet 100 is provided with a group of left and right air conditioning air outlet pipe 200, in the embodiment, the wind enters and flows outwards through both sides air conditioning air outlet pipe 200 from air inlet slot 101.

[0035] As shown in the figure, it is a central air conditioning air outlet noise reduction device structure schematic view of a preferred embodiment of the utility model, the central air conditioning air outlet noise reduction device of the embodiment, including air conditioning air outlet 100, the top of air conditioning air outlet 100 is provided with air inlet slot 101, the bottom of air conditioning air outlet 100 is provided with a group of left and right air conditioning air outlet pipe 200, in the embodiment, the wind enters and flows outwards through both sides air conditioning air outlet pipe 200 from air inlet slot 101. Figure 2 ​As shown, in order to reduce wind noise when the air conditioner outlet duct 200 is vented, in this embodiment, an outlet expansion port 201 is fixedly connected to the outlet end of the air conditioner outlet duct 200. The curved portions of the air conditioner outlet duct 200 are all provided with arc-shaped inner walls 202. The inner wall of the end of the air conditioner outlet duct 200 that connects to the funnel-shaped groove 102 is provided with a chamfered groove 203. Sound-insulating cotton layers 103 are provided on the outer wall of the air conditioner outlet duct 200 and at the position of the air conditioner outlet 100 near the funnel-shaped groove 102. In this embodiment, the outlet expansion port 201 allows for… When the air inside the air conditioning duct 200 diffuses outward, the wind speed is reduced, thereby reducing the wind noise at the air outlet of the air conditioning duct 200. The arc-shaped inner wall 202 reduces the noise generated by the friction between the air inside the air conditioning duct 200 and the inner wall. The chamfered groove 203 allows the air to enter the air conditioning duct 200 better, reducing the impact with the inside of the funnel-shaped groove 102 and the turbulence caused by the incoming fresh air. The sound insulation cotton layer 103 can isolate the internal noise from spreading outward, resulting in a better noise reduction effect.

[0036] like Figure 3 As shown, this is a schematic diagram of the filling component structure in this embodiment. A filling air guide block 300 is provided inside the funnel-shaped groove 102. The filling air guide block 300 fills the dead corner generated between the air inlet end of the air conditioner outlet pipe 200 and the funnel-shaped groove 102. In this embodiment, the filling of the filling air guide block 300 avoids the air from impacting inside the funnel-shaped groove 102, so that the air can be guided to the air inlet end of the air conditioner outlet pipe 200, further reducing noise.

[0037] It is worth noting that the aforementioned filling air guide block 300 is the filling component in this embodiment. The filling component includes, but is not limited to, the filling air guide block 300. Any component that can enable air to enter the air conditioner outlet duct 200 better without colliding with the inner wall of the funnel-shaped groove 102 can be applied to this embodiment.

[0038] like Figure 4 As shown, it is a schematic diagram of the second honeycomb panel structure in this embodiment. The upper end of the filling air guide block 300 is detachably connected to the second honeycomb perforated plate 301. In this embodiment, the second honeycomb perforated plate 301 can disperse the airflow pressure of the wind entering the funnel-shaped groove 102 and reduce wind noise.

[0039] like Figure 5 As shown, it is a schematic diagram of the first honeycomb panel structure in this embodiment. The inside of the bent parts of the air conditioning outlet pipes 200 on both sides can be detachably connected to the first honeycomb perforated plate 204. The first honeycomb perforated plate 204 can disperse the airflow pressure of the air entering the air conditioning outlet pipe 200, and further reduce noise.

[0040] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the utility model specific implementation is limited to these descriptions. For ordinary skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope determined by the claims submitted by the utility model.

Claims

1. A central air conditioner air outlet noise reduction device, comprising an air conditioner air outlet (100), the top of the air conditioner air outlet (100) is provided with an air inlet slot (101), the bottom of the air conditioner air outlet (100) is provided with a group of left and right air conditioner air outlet pipes (200), characterized in that, The air conditioner air outlet (100) is internally provided with a funnel-shaped groove (102), the funnel-shaped groove (102) is narrow at the top and wide at the bottom, the narrower end of the funnel-shaped groove (102) is communicated with the air inlet slot (101), and the wider end of the bottom of the funnel-shaped groove (102) is communicated with the air conditioner air outlet pipe (200) on both sides.

2. The central air conditioner air outlet noise reduction device according to claim 1, characterized in that, The air outlet expansion opening (201) is fixedly connected to the air outlet end of the air conditioner air outlet pipe (200), the curved portions on the air conditioner air outlet pipe (200) are provided with arc-shaped inner walls (202), and the inner wall of the communication end of the air conditioner air outlet pipe (200) and the funnel-shaped groove (102) is provided with a chamfered slot (203).

3. The central air conditioner air outlet noise reduction device according to claim 2, characterized in that, The funnel-shaped groove (102) is internally provided with a filling assembly, which fills the dead angle between the air inlet end of the air conditioner air outlet pipe (200) and the funnel-shaped groove (102).

4. The central air conditioner air outlet noise reduction device according to claim 3, characterized in that, The upper end of the filling air guide block (300) is detachably connected with a second honeycomb hole plate (301), and the second honeycomb hole plate (301) can disperse the air flow pressure of the air entering the funnel-shaped groove (102).

5. The central air conditioner air outlet noise reduction device according to claim 4, characterized in that, The inner walls of the bending portions of the air conditioner air outlet pipes (200) on both sides are detachably connected with first honeycomb hole plates (204), and the first honeycomb hole plates (204) can disperse the air flow pressure of the air entering the air conditioner air outlet pipe (200).

6. The central air conditioner air outlet noise reduction device according to claim 5, characterized in that, The outer walls of the air conditioner air outlet pipes (200) and the positions close to the funnel-shaped groove (102) of the air conditioner air outlet (100) are provided with sound insulation cotton layers (103).

7. The central air conditioner air outlet noise reduction device according to claim 6, characterized in that, The filling assembly comprises a filling air guide block (300), the funnel-shaped groove (102) is internally provided with the filling air guide block (300), and the filling air guide block (300) fills the dead angle between the air inlet end of the air conditioner air outlet pipe (200) and the funnel-shaped groove (102).

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