Air inlet noise reduction bag for air conditioner

Abstract

The utility model belongs to the technical field of silencing equipment, and relates to an air conditioner air inlet noise reduction silencing bag which comprises an installation cylinder, a cavity is formed in the installation cylinder, an air inlet is formed in the upper end face of the installation cylinder, an air outlet is formed in the lower end face of the installation cylinder, and a noise reduction assembly is arranged in the cavity and comprises a noise reduction cylinder, a three-channel pipe and a noise reduction pipe. The noise reduction cylinder is connected with the air inlet, a plurality of noise reduction holes are formed in the circumferential wall of the noise reduction cylinder, the noise reduction cylinder is sleeved with the three-channel pipe, a cavity for airflow to pass through is formed between the three-channel pipe and the noise reduction cylinder, a plurality of air outlet holes are formed in the lower end face of the three-channel pipe, each air outlet hole is connected with the noise reduction pipe, the noise reduction pipe is hollow, and a spiral piece is arranged in the noise reduction pipe. The other end of the noise reduction pipe is connected with a drainage pipe, a plurality of drainage holes for connecting the noise reduction pipe are formed in the drainage pipe, and the other end of the drainage pipe is communicated with the air outlet; compared with the prior art, the noise reduction bag has the advantages that the noise of airflow can be reduced in a multi-effect manner, and the noise reduction effect of the noise reduction bag is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of silencing equipment, and more specifically, to an air-conditioning air intake noise reduction silencing bag. Background Art

[0002] The air intake silencer package for air conditioners refers to the silencer used for air conditioners. Its purpose is to prevent the noise from the external environment and the noise generated by the vibration when the air conditioner outdoor unit is running from entering the room through the refrigerant pipe, thereby affecting the quietness of the indoor environment.

[0003] For example, the authorization announcement number CN219199456U discloses an air-conditioning intake silencer package, which is equipped with a spiral blade, and the air flows through the intake pipe into the No. 1 plugging cover, and then enters the interior of the No. 1 air pipe from the No. 1 plugging cover, and performs preliminary noise reduction through the air holes on the outer surface of the No. 1 silencer pipe. The airflow moves downward along the spiral blade, and the No. 1 silencer pipe is located at the central axis of the spiral blade. The spiral blade can reflect and consume sound waves at multiple angles, and along the time of the air flow in the installation tube, the problem of a single reflection angle of the baffle to the sound waves and a limited airflow range, resulting in poor noise reduction effect of the device, thereby improving the noise reduction effect of the device.

[0004] In the above, the airflow only passes through one air hole and spiral blade for noise reduction, and the path of the airflow is short. During use, the airflow cannot be silenced to the maximum extent, resulting in poor silencer effect. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an air conditioning intake noise reduction and silencing package with better silencing effect.

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

[0007] An air conditioning air intake noise reduction and silencing package comprises a mounting tube, wherein the mounting tube has a cavity inside, an air inlet is arranged on the upper end surface of the mounting tube, an air outlet is arranged on the lower end surface of the mounting tube, the air inlet and the air outlet are both connected to the cavity, and a noise reduction component is arranged in the cavity.

[0008] The noise reduction components include a noise reduction tube, a three-channel tube and a noise reduction tube.

[0009] The noise reduction tube is connected to the air inlet, and a number of noise reduction holes are opened on the surrounding wall of the noise reduction tube.

[0010] The three-channel tube is sleeved outside the noise reduction tube, and a cavity for airflow to pass through is formed between the three-channel tube and the noise reduction tube. A plurality of air outlets are arranged on the lower end surface of the three-channel tube, and each air outlet is connected to the noise reduction tube. The inside of the noise reduction tube is hollow, and a spiral sheet is arranged inside the noise reduction tube so that the airflow passes through the spiral sheet and passes through the noise reduction tube.

[0011] The other end of the noise reduction pipe is connected with a drainage pipe, which is provided with a plurality of drainage holes for connecting the noise reduction pipe. The other end of the drainage pipe is communicated with the air outlet so that the air flows out from the installation tube.

[0012] The utility model is further configured as follows: the air inlet is provided with an air inlet pipe connected with the air inlet, the air outlet is provided with an air outlet pipe connected with the air outlet, and the air inlet pipe and the air outlet pipe are integrally formed with the mounting tube.

[0013] The utility model is further configured as follows: the side wall of the spiral piece is fixedly connected to the inner wall of the noise reduction pipe, the side wall of the spiral piece is provided with sealant, and the spiral piece is connected to the noise reduction pipe through the sealant.

[0014] The utility model is further configured as follows: the drainage tube is integrally formed with the inner wall of the installation tube.

[0015] The utility model is further configured as follows: the inner wall of the installation tube is provided with sound-absorbing cotton, and the sound-absorbing cotton is adhered to the inner wall of the installation tube.

[0016] Compared with the shortcomings of the prior art, the beneficial effects of the utility model are:

[0017] By setting up a three-channel tube and a noise reduction tube connected to the three-channel tube, the airflow entering the installation tube is diverted, and each airflow enters the noise reduction tube. Then the airflow passes through the path extended by the spiral blade, and finally converges in the drainage tube and flows out from the air outlet. It can reduce the noise of the airflow in multiple ways, thereby enhancing the noise reduction effect of the silencer bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the noise reduction component of an embodiment of the utility model.

[0020] Installation tube 1, cavity 2, air inlet 3, air outlet 4, noise reduction tube 5, three-channel tube 6, noise reduction tube 7, noise reduction hole 8, cavity 9, air outlet hole 10, spiral sheet 11, drainage tube 12, drainage hole 13, air inlet pipe 14, air outlet pipe 15. DETAILED DESCRIPTION

[0021] Reference Figure 1 to Figure 2 The utility model is further described in detail.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] 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.

[0024] The air-conditioning air intake noise reduction and silencing package as shown in the figure includes a mounting tube 1, the mounting tube 1 has a cavity 2 inside, the inner wall of the mounting tube 1 is provided with sound-absorbing cotton, and the sound-absorbing cotton is adhered to the inner wall of the mounting tube 1 to further absorb and reduce the noise of the airflow entering the mounting tube 1.

[0025] An air inlet 3 is provided on the upper end surface of the mounting tube 1, and an air outlet 4 is provided on the lower end surface of the mounting tube 1. Both the air inlet 3 and the air outlet 4 are connected to the cavity 2. An air inlet pipe 14 connected to the air inlet 3 is provided on the air inlet 3, and an air outlet pipe 15 connected to the air outlet 4 is provided on the air outlet 4. The air inlet pipe and the air outlet pipe are integrally formed with the mounting tube 1 to facilitate air entry and outflow.

[0026] A noise reduction component is provided in the cavity 2 for reducing the noise of the air entering from the air inlet 3 .

[0027] The noise reduction component includes a noise reduction tube 5, a three-channel tube 6 and a noise reduction tube 7. The three-channel tube 6 is used to divert the airflow entering from the air inlet 3 and perform noise reduction on each airflow.

[0028] The noise reduction tube 5 is connected to the air inlet 3. A plurality of noise reduction holes 8 are provided on the peripheral wall of the noise reduction tube 5. The lower end surface of the noise reduction tube 5 is sealed. The incoming airflow flows out through the noise reduction holes 8 and enters the three-channel tube 6 for diversion processing.

[0029] The three-channel tube 6 is sleeved outside the noise reduction tube 5, and a cavity 9 for air flow to pass through is formed between the three-channel tube 6 and the noise reduction tube 5. The lower end surface of the three-channel tube 6 is provided with a plurality of air outlets 10, preferably three air outlets 10, each of which is connected to the noise reduction tube 7. The interior of the noise reduction tube 7 is hollow, and a spiral blade 11 is provided in the noise reduction tube 7 so that the air flow passes through the spiral blade 11 through the noise reduction tube 7. The side wall of the spiral blade 11 is fixedly connected to the inner wall of the noise reduction tube 7, and the side wall of the spiral blade 11 is provided with sealant. The spiral blade 11 is connected to the noise reduction tube 7 by the sealant to ensure that the air flow will not escape and affect the noise reduction effect.

[0030] The other end of the noise reduction pipe 7 is connected to a drainage pipe 12, which is integrally formed with the inner wall of the mounting tube 1. The drainage pipe 12 is provided with a plurality of drainage holes 13 for connecting the noise reduction pipe 7. The other end of the drainage pipe 12 is connected to the air outlet 4 so that the air can flow out of the mounting tube 1.

[0031] Working principle: When in use, the airflow enters the noise reduction tube 5 through the air inlet pipe 14, and then flows out through the noise reduction holes 8 on the peripheral wall of the noise reduction tube 5 to perform the first step of noise reduction treatment. The airflow then flows into the three-channel tube 6 and flows into the noise reduction tube 7 through the air outlet 10. This operation is to divert the airflow and gradually perform noise reduction treatment on the airflow. The diverted airflows enter the corresponding noise reduction tubes 7 respectively. The airflow needs to pass through the spiral blades 11 to flow from the drainage holes 13 to the drainage tube 12. The spiral blades 11 extend the path of the airflow and effectively enhance the noise reduction effect. The sound-absorbing cotton in the installation tube 1 further reduces the noise of the airflow passing through. The diverted airflow flows into the drainage tube 12 for convergence and then flows out from the air outlet pipe 15 together.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any common changes and substitutions made by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An air conditioning intake noise reduction and silencing package, comprising a mounting tube (1), characterized in that: The installation tube (1) has a cavity (2) inside, an air inlet (3) is provided on the upper end surface of the installation tube (1), and an air outlet (4) is provided on the lower end surface of the installation tube (1), the air inlet (3) and the air outlet (4) are both in communication with the cavity (2), and a noise reduction component is provided in the cavity (2). The noise reduction component comprises a noise reduction cylinder (5), a three-channel tube (6) and a noise reduction tube (7). The noise reduction tube (5) is connected to the air inlet (3), and a plurality of noise reduction holes (8) are provided on the peripheral wall of the noise reduction tube (5). The three-channel tube (6) is sleeved outside the noise reduction tube (5), and a cavity (9) for airflow to pass through is formed between the three-channel tube (6) and the noise reduction tube (5). A plurality of air outlet holes (10) are provided on the lower end surface of the three-channel tube (6), and each air outlet hole (10) is connected to a noise reduction tube (7). The interior of the noise reduction tube (7) is hollow, and a spiral sheet (11) is provided inside the noise reduction tube (7), so that the airflow passes through the spiral sheet (11) and passes through the noise reduction tube (7). The other end of the noise reduction pipe (7) is connected to a drainage pipe (12), and a plurality of drainage holes (13) are provided on the drainage pipe (12) for connection to the noise reduction pipe (7). The other end of the drainage pipe (12) is connected to the air outlet (4) so ​​that air can flow out of the installation tube (1).

2. The air conditioning intake noise reduction and silencing package according to claim 1, characterized in that: The air inlet (3) is provided with an air inlet pipe (14) in communication with the air inlet (3), and the air outlet (4) is provided with an air outlet pipe (15) in communication with the air outlet (4), and both the air inlet pipe and the air outlet pipe are integrally formed with the mounting tube (1).

3. The air conditioning intake noise reduction and silencing package according to claim 2, characterized in that: The side wall of the spiral blade (11) is fixedly connected to the inner wall of the noise reduction pipe (7), and the side wall of the spiral blade (11) is provided with a sealant, and the spiral blade (11) is connected to the noise reduction pipe (7) through the sealant.

4. The air conditioning intake noise reduction and silencing package according to claim 3, characterized in that: The drainage tube (12) is integrally formed with the inner wall of the mounting tube (1).

5. The air conditioning intake noise reduction and silencing package according to claim 4, characterized in that: The inner wall of the installation tube (1) is provided with sound-absorbing cotton, and the sound-absorbing cotton is adhered to the inner wall of the installation tube (1).

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