Dual-chamber sound insulation and noise reduction oxygen generator

Abstract

The utility model relates to oxygen generator noise reduction technical field discloses a double -cavity sound insulation noise reduction's oxygen generator, including lower chamber and upper chamber, lower chamber is sound insulation cavity, and inner wall is attached sound insulation cotton board, is used for the wrapping and isolation compressor, air intake silencer and nitrogen exhaust silencer, and the lower chamber bottom sets up the air outlet, is used for the hot air discharge chamber, the upper chamber contains the molecular sieve assembly, distribution valve and heat dissipation fan in, and the air inlet surface of heat dissipation fan faces molecular sieve assembly and distribution valve, and the air outlet surface of heat dissipation fan is connected with lower chamber and blows to the compressor surface, the upper chamber is opened air inlet, the utility model discloses, through physical isolation and air duct integration design, separates the main vibration noise source and airflow noise source, and utilizes a set of efficient series air duct, and one group heat dissipation fan provides forced heat dissipation for two chambers simultaneously, thereby reduces the whole machine working noise significantly, and solves the heat dissipation contradiction of system.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator noise reduction technology, specifically a dual-chamber sound insulation and noise reduction oxygen generator. Background Technology

[0002] Existing medical oxygen concentrators generally suffer from high operating noise levels. The main noise sources include the mechanical vibration noise of the compressor, the noise from the intake and exhaust airflow, and the noise from the cooling fan. Traditional noise reduction methods, such as adding sound insulation or installing local baffles, while effective to some extent, often fail to address the system's heat dissipation requirements. The compressor is the primary heat source and requires forced cooling. Completely sealing the compressor would lead to overheating and damage, while simple perforated designs would weaken the noise reduction effect. Therefore, designing a structure that simultaneously optimizes noise management and heat dissipation efficiency is a pressing technical challenge in this field. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a dual-chamber sound insulation and noise reduction oxygen concentrator, which solves the problem of balancing compressor heat dissipation performance and noise management in existing oxygen concentrators.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A dual-chamber soundproof oxygen generator includes a lower chamber and an upper chamber. The lower chamber is a soundproof cavity with soundproof cotton panels attached to its inner wall to wrap and isolate the compressor, intake silencer, and nitrogen exhaust silencer. An air outlet is provided at the bottom of the lower chamber to exhaust hot air. The upper chamber houses a molecular sieve assembly, a distribution valve, and a cooling fan. The air inlet of the cooling fan faces the molecular sieve assembly and the distribution valve to draw in the air flowing through them. The air outlet of the cooling fan is connected to the lower chamber and blows air onto the compressor surface. An air inlet is provided on the upper chamber, forming a connected and coordinated cooling air duct between the upper and lower chambers.

[0006] Preferably, a pressure regulating valve is connected to the oxygen outlet end of the molecular sieve assembly, and the pressure regulating valve is exposed and located at the air inlet.

[0007] Preferably, the walls of the upper chamber are also covered with sound-absorbing cotton boards.

[0008] Preferably, a switching power supply assembly is provided on the side wall of the upper chamber, and multiple cooling fans are arranged in the inner cavity of the upper chamber, with the air inlet surface of one of the cooling fans facing the switching power supply assembly. An opening matching the switching power supply assembly is provided on the side wall of the upper chamber, and the air inlet surface of the cooling fan faces the opening.

[0009] Preferably, the lower chamber is fixedly mounted on the oxygen generating base, and the lower part of the oxygen generating base is provided with an exhaust port that communicates with the outside, and the exhaust port is connected to the air outlet.

[0010] This utility model has the following beneficial effects:

[0011] This dual-chamber soundproof oxygen concentrator utilizes a series-connected, coordinated heat dissipation airflow throughout the upper and lower chambers. This allows a single cooling fan to drive the same airflow to cool different heat sources simultaneously, resulting in a scientifically designed and highly efficient airflow path. This avoids the cost, power consumption, and additional noise associated with multi-fan designs. The dual-chamber design isolates the largest source of mechanical vibration noise (the compressor system) within the lower soundproof chamber, effectively blocking noise transmission. Simultaneously, the innovative series-connected airflow design cleverly utilizes a single cooling fan to address the heat dissipation issue, achieving a high degree of unity between noise reduction and heat dissipation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the upper and lower chambers of this utility model;

[0014] Figure 3 This is a schematic diagram of the lower chamber layout structure of this utility model.

[0015] In the diagram: 1. Lower chamber; 10. Compressor; 11. Inlet silencer; 12. Nitrogen exhaust silencer; 13. Air outlet; 2. Upper chamber; 21. Air inlet; 22. Cooling fan; 3. Sound insulation board; 4. Molecular sieve assembly; 41. Distribution valve; 5. Switching power supply assembly; 6. Pressure regulating valve. 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] A dual-chamber soundproof oxygen generator includes a lower chamber 1 and an upper chamber 2. The lower chamber 1 is a soundproof cavity with soundproof cotton panels 3 attached to its inner wall to wrap and isolate the compressor 10, the intake silencer 11, and the nitrogen exhaust silencer 12. An air outlet 13 is provided at the bottom of the lower chamber 1 to exhaust hot air from the chamber. The upper chamber 2 contains a molecular sieve assembly 4, a distribution valve 41, and a cooling fan 22. The air inlet of the cooling fan 22 faces the molecular sieve assembly 4 and the distribution valve 41 to draw air flowing through them. The air outlet of the cooling fan 22 is connected to the lower chamber 1 and blows air onto the surface of the compressor 10. An air inlet 21 is provided on the upper chamber 2, and a connected and coordinated heat dissipation air duct is formed between the upper chamber 2 and the lower chamber 1.

[0018] like Figure 1 and Figure 3 As shown, in the above technical solution, the entire chassis forms a series-connected, coordinated heat dissipation airflow channel that runs through the upper and lower chambers 1. This allows different heat sources to be cooled only once by the same airflow driven by the cooling fan 22. The airflow path is scientific and highly efficient, avoiding the cost, power consumption, and additional noise associated with multi-fan designs. Through the upper and lower dual-chamber design, the largest source of mechanical vibration noise (compressor 10 system) is isolated in the lower soundproof chamber, effectively blocking noise propagation. At the same time, the innovative series-connected airflow design cleverly utilizes a set of cooling fans 22 to solve the heat dissipation problem of the heat source, achieving a high degree of unity between noise reduction and heat dissipation.

[0019] A pressure regulating valve 6 is connected to the oxygen outlet end of the molecular sieve assembly 4. The pressure regulating valve 6 is exposed and located at the air inlet 21. Figure 1 As shown, in this technical solution, the externally adjustable design of the pressure regulating valve 6 eliminates the hassle of unpacking and debugging, greatly improving the ease of use and maintainability of the product.

[0020] The walls of the upper chamber 2 are also lined with sound-absorbing cotton panels. For example... Figure 2 As shown, in this technical solution, by also performing noise reduction treatment on the upper chamber 2, the noise generated during the operation of the cooling fan 22 is effectively isolated, thereby improving the noise reduction performance of the entire oxygen generator box during operation.

[0021] A switching power supply assembly 5 is installed on the side wall of the upper chamber 2. Multiple cooling fans 22 are arranged inside the upper chamber 2, with the air intake surface of one of the cooling fans 22 facing the switching power supply assembly 5. An opening matching the switching power supply assembly 5 is provided on the side wall of the upper chamber 2, and the air intake surface of the cooling fan 22 faces the opening. Figure 2 and Figure 3 As shown, in this technical solution, by directing the air intake of a cooling fan 22 toward the switching power supply, the switching power supply component 5 can be cooled by direct suction or blowing, reducing the cooling airflow path and improving the overall cooling efficiency.

[0022] In this technical solution, the lower chamber 1 is fixedly installed on the oxygen generating base, and the lower part of the oxygen generating base is provided with an exhaust port that communicates with the outside. The exhaust port is connected to the air outlet 13.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-chamber sound-insulating and noise-reducing oxygen concentrator, characterized in that, It consists of a lower chamber and an upper chamber. The lower chamber is a soundproof cavity with sound-insulating cotton panels attached to its inner walls to enclose and isolate the compressor, intake silencer, and nitrogen exhaust silencer. An air outlet is located at the bottom of the lower chamber to exhaust hot air. The upper chamber houses the molecular sieve assembly, distribution valve, and cooling fan. The air inlet of the cooling fan faces the molecular sieve assembly and distribution valve to draw in the air flowing through them. The air outlet of the cooling fan is connected to the lower chamber and blows air onto the compressor surface. An air inlet is opened on the upper chamber, forming a connected and coordinated cooling air duct between the upper and lower chambers.

2. The dual-chamber sound insulation and noise reduction oxygen concentrator according to claim 1, characterized in that: The oxygen outlet end of the molecular sieve assembly is connected to a pressure regulating valve, which is exposed and located at the air inlet.

3. The dual-chamber sound insulation and noise reduction oxygen concentrator according to claim 1 or 2, characterized in that: The walls of the upper chamber are also covered with sound-absorbing cotton boards.

4. The dual-chamber sound insulation and noise reduction oxygen concentrator according to claim 3, characterized in that: The upper chamber has a switching power supply assembly installed on its side wall, and multiple cooling fans are arranged in the upper chamber. One of the cooling fans has its air intake facing the switching power supply assembly. The upper chamber has an opening on its side wall that matches the switching power supply assembly, and the air intake of the cooling fan faces the opening.

5. The dual-chamber sound insulation and noise reduction oxygen concentrator according to claim 4, characterized in that: The lower chamber is fixedly mounted on the oxygen generating base, and the lower part of the oxygen generating base is provided with an exhaust port that communicates with the outside. The exhaust port is connected to the air outlet.

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