Oxygen generator and vehicle

Abstract

The application discloses an oxygen generator and a vehicle, and relates to the field of oxygen generating equipment. The oxygen generator comprises a base, a first sound insulation plate, a supporting piece, a second sound insulation plate and a sound elimination mechanism. The base is provided with an air inlet and an air outlet. The first sound insulation plate is installed on the base. The supporting piece is installed on the base and forms an air exhaust cavity with the first sound insulation plate. At least one air exhaust channel is formed in the air exhaust cavity. The air exhaust channel is communicated with the air inlet and the air outlet. The at least one air exhaust channel is provided with a detour section. The sound elimination mechanism is arranged in the at least one air exhaust channel. During the air exhaust process, the gas flows through the detour section and contacts the sound elimination mechanism. The application forms a double sound insulation structure by arranging the detour section and the sound elimination mechanism in the air exhaust channel, arranging the first sound insulation plate on the inner side of the air exhaust channel and arranging the second sound insulation plate on the outer side of the air exhaust channel. The problem of excessive noise generated by the oxygen generator is effectively solved, and the user experience is improved.

Description

Technical Field

[0001] This application relates to the field of oxygen generating equipment, and in particular to an oxygen generator and vehicle. Background Technology

[0002] With the development of automotive intelligence and in-vehicle comfort systems, in-vehicle oxygen generators have gradually become an important feature for improving in-vehicle air quality and enhancing the driving experience. Especially in enclosed cabins, long-distance driving, and high-altitude driving scenarios, in-vehicle oxygen generators can provide a stable oxygen supply for passengers, alleviate driving fatigue, and improve discomfort caused by hypoxia.

[0003] During operation, in-vehicle oxygen concentrators need to continuously perform actions such as air intake, oxygen-nitrogen separation, and exhaust. However, the noise generated by these oxygen concentrators during operation is excessive, affecting the user experience. Summary of the Invention

[0004] This application provides an oxygen generator and vehicle that can solve the problem of excessive noise generated by oxygen generators during operation in related technologies.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is: This application discloses an oxygen generator, including a base, a first sound insulation plate, a support member, a second sound insulation plate, and a silencing mechanism. The base has an air inlet and an exhaust outlet. The first sound insulation plate is mounted on the base. The support member is mounted on the base and forms an exhaust chamber between itself and the first sound insulation plate. The exhaust chamber has at least one exhaust channel, which communicates with the air inlet and the exhaust outlet. At least one exhaust channel has a detour section. The silencing mechanism is disposed within at least one exhaust channel. During exhaust, the gas flows through the detour section and contacts the silencing mechanism.

[0006] In some embodiments, the oxygen generator includes, from the inside out, an inner limiting mechanism, a middle limiting mechanism, and an outer limiting mechanism. At least one middle limiting mechanism is present, located between the inner and outer limiting mechanisms. A first exhaust path is formed between the air inlet and the inner limiting mechanism. A detour path is formed between the inner and middle limiting mechanisms, and between each of the middle limiting mechanisms. A tail exhaust path is formed between the middle and outer limiting mechanisms. The first exhaust path, the detour path, and the tail exhaust path are sequentially connected to form the exhaust channel.

[0007] In some embodiments, the inner limiting mechanism, the middle limiting mechanism, and the outer limiting mechanism each have a U-shaped plate, the openings of two adjacent U-shaped plates face opposite directions, and the inner U-shaped plate is located within the enclosure of the adjacent outer U-shaped plate to form two exhaust channels.

[0008] In some embodiments, the U-shaped plate of the outer limiting mechanism is connected to several turbulence plates, and the turbulence plates are arranged at intervals on the inner side wall surface in the middle of the U-shaped plate.

[0009] In some embodiments, the U-shaped plate of the central limiting mechanism is provided with a connecting port to additionally connect the head exhaust section and the detour section.

[0010] In some embodiments, the muffler is disposed within the tail exhaust section.

[0011] In some embodiments, the width of the detour section is smaller than the width of the tail exhaust section.

[0012] In some embodiments, the base is provided with a positioning groove, and at least one of the inner limiting mechanism, the middle limiting mechanism and the outer limiting mechanism is inserted into the positioning groove.

[0013] In some embodiments, the silencing mechanism includes a silencing plate connected to opposite side walls of the exhaust channel, and the silencing plate is provided with a plurality of silencing holes to form a silencing area.

[0014] In some embodiments, the sound-absorbing plate includes a first sound-absorbing plate and a second sound-absorbing plate, the first sound-absorbing plate and the second sound-absorbing plate being spaced apart; the first sound-absorbing plate is provided with a first sound-absorbing area, and the second sound-absorbing plate is provided with a second sound-absorbing area.

[0015] In some embodiments, the first silencing region and the second silencing region are staggered.

[0016] In some embodiments, the silencing mechanism includes silencing cotton, with its opposite ends connected to opposite sides of the exhaust channel.

[0017] In some embodiments, the silencing mechanism includes sound-absorbing cotton, which is disposed on the wall of the exhaust channel.

[0018] The second aspect of this application discloses a vehicle including an oxygen generator as described in any of the above embodiments.

[0019] This application has at least the following effects: Compared with the prior art, the oxygen concentrator of this application forms a double sound insulation structure by setting a detour section and a silencing mechanism in the exhaust channel, and setting a first sound insulation plate on the inner side of the exhaust channel and a second sound insulation plate on the outer side of the exhaust channel. This can significantly reduce the airflow noise generated during the exhaust process, thereby effectively solving the problem of excessive noise in the oxygen concentrator and improving the user experience.

[0020] Specifically, during the exhaust process, the airflow enters a detour section, which lengthens and complicates the airflow path. The airflow velocity decreases due to the tortuous path and changes in cross-section, thus dissipating sound energy. Furthermore, the airflow comes into contact with the silencing mechanism, further absorbing or attenuating its noise energy. The first and second sound insulation panels form a double-layer sound insulation structure to effectively reduce noise in the exhaust chamber, minimize noise propagation, and improve the quietness of the oxygen concentrator.

[0021] The vehicle in this application includes the oxygen concentrator, which can significantly reduce the noise generated during the operation of the oxygen concentrator, thereby effectively solving the problem of high noise levels from the oxygen concentrator, reducing interference with occupants, and improving the user experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is one of the structural schematic diagrams of an oxygen generator provided in some embodiments of this application; Figure 2 This is a second schematic diagram of the structure of an oxygen generator provided in some embodiments of this application; Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the middle AA; Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure along the middle BB; Figure 5 This is the third of the structural schematic diagrams of the oxygen generator provided in some embodiments of this application; Figure 6 This is the fourth of the structural schematic diagrams of the oxygen generator provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the soundproof cover provided in some embodiments of this application; Figure 8 It is along Figure 7 A schematic diagram of the cross-sectional structure along the CC axis; Figure 9This is a schematic diagram of the structure of the support provided in some embodiments of this application.

[0024] Explanation of reference numerals in the attached figures: 110 Outer casing, 111 Air inlet, 112 Air outlet, 120 Compressor, 130 Molecular sieve device, 140 Base, 141 Air inlet, 142 Exhaust outlet, 143 Positioning groove, 150 Oxygen storage tank, 160 Humidification bottle; 200 Soundproof enclosure, 210 Equipment soundproof cavity, 220 First silencing cavity, 230 Partition, 231 First partition, 232 Second partition, 240 Chamber, 241 First chamber, 242 Second chamber, 243 Third chamber, 250 Connecting hole, 251 First connecting hole, 252 Second connecting hole, 253 Third connecting hole, 260 Sound-absorbing cotton, 270 Second silencing cavity, 280 Baffle block, 290 Sealing plate; 300 Exhaust passage, 310 Head exhaust section, 320 Detour section, 330 Tail exhaust section; 400 Blowing device, 410 First blowing unit, 420 Second blowing unit; 500 Silencing mechanism, 510 Silencing plate, 511 First Silencing plate, 5111 First Silencing area, 512 Second Silencing plate, 5121 Second Silencing area; 600 Limiting mechanism, 610 Inner limiting mechanism, 620 Middle limiting mechanism, 630 Outer limiting mechanism, 640 U-shaped plate, 641 Connecting port, 650 Spoiler; 710 First sound insulation module, 720 Support component, 721 Support platform, 722 Mounting cavity, 723 Limiting groove, 730 Second sound insulation module, 740 Exhaust cavity; 800 Shock-absorbing structure, 810 First pad, 820 Spring, 830 Second pad. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are only for explaining this application and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all structures. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise expressly specified. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to those processes, methods, products, or apparatuses. The term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0027] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0028] Combination Figures 1 to 9 As shown, this application discloses an oxygen generator, including a housing 110, a compressor 120, and a molecular sieve device 130. Both the compressor 120 and the molecular sieve device 130 are disposed inside the housing. After being compressed by the compressor 120, the air flows into the molecular sieve device 130 for nitrogen-oxygen separation, separating nitrogen and high-concentration oxygen, such as oxygen with a concentration of more than 90%.

[0029] In some embodiments, the oxygen generator further includes a soundproof cover 200 and at least one exhaust channel 300. The outer casing 110 has an air inlet 111 and an air outlet 112. A molecular sieve device 130 is located inside the outer casing 110 for separating nitrogen and oxygen in the air. The soundproof cover 200 is located inside the outer casing 110. The soundproof cover 200 has a device soundproof cavity 210 and a first silencing cavity 220. The compressor 120 is located inside the device soundproof cavity 210, and the first silencing cavity 220 is connected to the device soundproof cavity 210. The exhaust channel 300 connects the device soundproof cavity 210 and the air outlet 112. Outside air flows through the air inlet 111 and sequentially through the compressor 120 and the molecular sieve device 130. The nitrogen discharged from the molecular sieve device 130 flows sequentially through the first silencing cavity 220, the device soundproof cavity 210, the exhaust channel 300, and the air outlet 112, and is finally discharged to the external environment.

[0030] In this embodiment, by setting a soundproof cavity 210 and a first silencing cavity 220 inside the soundproof cover 200, and placing the compressor 120 inside the soundproof cavity 210, the mechanical noise generated by the operation of the compressor 120 can be effectively blocked from radiating outward.

[0031] Nitrogen gas flows sequentially through the first silencing chamber 220, the equipment sound insulation chamber 210, the exhaust channel 300, and the air outlet 112 before being discharged. The airflow forms a multi-stage silencing path in the first silencing chamber 220 and the equipment sound insulation chamber 210, which can reduce the noise of the exhaust airflow.

[0032] At the same time, the exhaust airflow passes through the sound insulation cavity 210 of the equipment, which can carry away the heat generated by the compressor 120 during operation. While reducing noise, it can also improve the heat dissipation efficiency of the compressor 120, making the oxygen concentrator quieter, better dissipating heat, and more stable in operation, resulting in a better user experience.

[0033] Combination Figure 7 and Figure 8 As shown, in some embodiments, at least one partition 230 is provided inside the first silencing cavity 220, dividing the first silencing cavity 220 into multiple chambers 240. Each partition 230 has a connecting hole 250 so that the multiple chambers 240 are connected in sequence; the chamber 240 at the end is connected to the equipment sound insulation cavity 210. In this embodiment, by setting the partition 230 to divide the first silencing cavity 220 into multiple chambers 240 in series, the exhaust airflow is buffered and silenced in the multiple chambers 240 in sequence, further enhancing the noise reduction effect.

[0034] Combination Figure 7 and Figure 8 As shown, in some embodiments, the connecting holes 250 on adjacent partitions 230 are arranged in a staggered manner to allow the exhaust airflow to flow back and forth between multiple chambers 240, extending the flow path of the airflow within the first silencing chamber 220, increasing the contact time and contact area between the airflow and the inner wall of the silencing chamber, and effectively consuming the acoustic energy of the airflow. Simultaneously, the staggered connecting holes 250 on each partition 230 cause the sound waves to repeatedly change direction during propagation. Each change in direction causes the sound waves to be reflected and scattered on the inner wall of the chamber, effectively consuming acoustic energy. The extension of the flow path and the change in propagation direction have a combined effect, synergistically enhancing the silencing and noise reduction effect, effectively reducing the operating noise of the oxygen concentrator, and making the oxygen concentrator operate more quietly.

[0035] Combination Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, at least one chamber 240 is provided with sound-absorbing cotton 260, which can absorb, attenuate and dissipate airflow noise, further reducing sound wave energy.

[0036] Optionally, the sound-absorbing cotton 260 may be, but is not limited to, porous sound-absorbing materials such as glass fiber cotton, polyester fiber cotton, or ceramic fiber cotton.

[0037] When the sound-absorbing cotton 260 is combined with the aforementioned multi-stage chamber 240 and the zigzag sound-absorbing path formed by the interlaced connecting holes, it can achieve the synergistic effect of structural sound absorption and material sound absorption, significantly improving the noise reduction effect and making the oxygen concentrator run more quietly.

[0038] Combination Figure 7 and Figure 8 As shown, in some embodiments, the first silencing cavity 220 is provided with a first partition 231 and a second partition 232 that are spaced apart, so as to divide the first silencing cavity 220 into a first chamber 241, a second chamber 242 and a third chamber 243 that are connected in sequence, and the third chamber 243 is connected to the equipment sound insulation cavity 210.

[0039] The first partition 231 and the second partition 232 clearly divide the first silencing cavity 220 into three chambers 240 connected in series. This allows the exhaust airflow to be buffered, diffused, and attenuated as it flows through each chamber 240, further enhancing the noise reduction effect and effectively reducing the operating noise of the oxygen concentrator, making the oxygen concentrator operate more quietly.

[0040] Combination Figure 7 and Figure 8 As shown, in some embodiments, the first silencing cavity 220 is located on the upper side of the soundproof cover 200; the first partition 231 is provided with a first connecting hole 251, and the second partition 232 is provided with a second connecting hole 252, the height of the first connecting hole 251 is lower than the height of the second connecting hole 252.

[0041] In this embodiment, by arranging the first connecting hole 251 and the second connecting hole 252 at different heights, the exhaust airflow forms an up-and-down reversing flow path between the first chamber 241 and the second chamber 242, further extending the residence time and flow path of the airflow in the first silencing chamber 220; the airflow and sound waves reverse direction and reflect each other as they flow through the connecting holes 250 at different heights, achieving sound energy attenuation, further improving the noise reduction effect, and making the oxygen concentrator operate more quietly.

[0042] Combination Figure 7 and Figure 8 As shown, in some embodiments, the bottom wall of the third chamber 243 is provided with a third connecting hole 250, which is arranged in multiple rows and columns to connect the third chamber 243 with the equipment sound insulation cavity 210.

[0043] In this embodiment, a third connecting hole 250 with multiple rows and columns is used as a noise reduction hole. The third connecting hole 250, the first connecting hole 251, and the second connecting hole 252 form a low-high-low staggered arrangement, thereby creating a down-up-down reversing flow path for the airflow, further improving the noise reduction effect and making the oxygen generator operate more quietly.

[0044] Combination Figure 3 , Figure 7 and Figure 8 As shown, in some embodiments, sound-absorbing cotton 260 is provided in the third chamber 243. In this embodiment, the sound-absorbing cotton 260 is placed in the last-stage chamber 240, which can directly and efficiently absorb and attenuate the remaining sound waves. Combining the aforementioned multiple chambers 240 and the zigzag path, dual synergistic noise reduction through structural and material sound absorption is achieved, effectively improving the sound absorption effect of the first sound-absorbing chamber 220, resulting in lower operating noise and better quietness performance of the oxygen concentrator.

[0045] Combination Figure 3 and Figure 7 As shown, in some embodiments, the soundproof cover 200 also has a second silencing chamber 270, through which outside air flows into the compressor 120 to reduce the noise of the intake air and make the oxygen generator operate more quietly.

[0046] It should be noted that the first silencing cavity 220, the second silencing cavity 270 and the soundproof cover 200 are an integrally connected structure, and the upper side of the first silencing cavity 220 and the second silencing cavity 270 are both provided with sealing plates 290 for sealing.

[0047] In some embodiments, a few disturbance flow blocks 280 are provided on the annular sidewall of the second silencing cavity 270, and the disturbance flow blocks 280 are circumferentially spaced along the annular sidewall. The circumferentially spaced disturbance flow blocks 280 can create disturbance and rectification effects on the intake airflow entering the second silencing cavity 270, reducing intake turbulence noise; at the same time, the disturbance flow blocks 280 can cause sound waves to be repeatedly reflected and scattered during propagation, further consuming sound energy, thereby reducing the operating noise of the oxygen generator.

[0048] Combination Figures 3 to 6 As shown, in some embodiments, the exhaust channel 300 is located below the compressor 120; the oxygen concentrator also includes a blower 400, which is disposed inside the housing 110 and blows air from top to bottom into the equipment sound insulation cavity 210. In this embodiment, by using the blower 400 to blow air from top to bottom into the equipment sound insulation cavity 210, in conjunction with the exhaust channel 300 located below the compressor 120, a strong airflow channel from top to bottom can be formed within the equipment sound insulation cavity 210. This quickly carries away the surface heat of the compressor 120 and directs it downward into the exhaust channel 300 for discharge, effectively improving the heat dissipation efficiency of the compressor 120.

[0049] In some embodiments, the blower device 400 includes a first blower unit 410 and a second blower unit 420. The first blower unit 410 is located above the front side of the compressor 120 and is disposed near the first silencing cavity 220. The second blower unit 420 is located above the rear side of the compressor 120.

[0050] The first air-blowing unit 410 is located above the front of the compressor 120, and the second air-blowing unit 420 is located above the rear of the compressor 120. This helps to form a heat dissipation airflow with a large coverage area and small dead zones, preventing heat accumulation in local areas of the compressor 120 due to insufficient airflow coverage, and further improving the uniformity and efficiency of heat dissipation. The first air-blowing unit 410 is positioned close to the first silencing cavity 220, guiding and directing the nitrogen gas flowing out of the first silencing cavity 220. Given the relatively low density of nitrogen gas, the downward blowing force generated by the first air-blowing unit 410 can effectively drive the nitrogen gas downwards, allowing it to enter the exhaust channel 300 more quickly and finally be discharged into the external environment.

[0051] Optionally, the first air blowing unit 410 and the second air blowing unit 420 can be at least one of a cooling fan, an axial fan, a volute fan, or a blower. (See attached image) Figure 5 In the middle, both the first blowing unit 410 and the second blowing unit 420 are volute fans.

[0052] Combination Figure 4 and Figure 9 As shown, in some embodiments, at least one exhaust passage 300 has a detour section 320; during the exhaust process of the oxygen generator, the airflow enters the detour section 320, which prolongs and complicates the flow path of the airflow, and the airflow speed is reduced due to the tortuous path and cross-sectional changes, so that the sound energy is consumed.

[0053] Combination Figure 9 As shown, in some embodiments, the oxygen generator also includes a silencing mechanism 500, which is disposed in at least one exhaust channel 300. The airflow comes into contact with the silencing mechanism 500, and its noise energy is further attenuated.

[0054] The combination of the detour section 320 and the silencing mechanism 500 creates a superimposed silencing effect, which can significantly reduce the airflow noise generated during the exhaust process, thereby effectively solving the problem of excessive exhaust noise from the oxygen concentrator and improving the user experience.

[0055] Combination Figure 4 and Figure 9As shown, in some embodiments, the oxygen generator includes, from the inside out, an inner limiting mechanism 610, a middle limiting mechanism 620, and an outer limiting mechanism 630. At least one middle limiting mechanism 620 is present, located between the inner limiting mechanism 610 and the outer limiting mechanism 630. A first exhaust path 310 is formed between the air inlet and the inner limiting mechanism 610. A detour path 320 is formed between the inner limiting mechanism 610 and the middle limiting mechanism 620, and between each middle limiting mechanism 620. A tail exhaust path 330 is formed between the middle limiting mechanism 620 and the outer limiting mechanism 630. The first exhaust path 310, the detour path 320, and the tail exhaust path 330 are sequentially connected to form an exhaust channel 300.

[0056] This embodiment, by setting up inner, middle, and outer three-layer limiting mechanisms 600, can form an exhaust channel 300 that gradually extends from the inside to the outside within a limited space. After the gas enters from the air inlet, it flows sequentially through the first exhaust section 310, the detour section 320 formed by the multi-layer limiting mechanisms 600, and the tail exhaust section 330. This structure significantly extends the gas flow path and achieves stepped buffering and deceleration of the airflow through the multi-layer structure, enhancing the dissipation of airflow energy; at the same time, it increases the contact time between the gas and the wall of the exhaust channel 300, further improving the noise reduction effect and making the oxygen concentrator exhaust quieter.

[0057] Optionally, the central limiting mechanism 620 can be one, two, or three, which can be flexibly set according to actual needs.

[0058] In some embodiments, the inner limiting mechanism 610, the middle limiting mechanism 620, and the outer limiting mechanism 630 each have a U-shaped plate 640, the openings of two adjacent U-shaped plates 640 face opposite directions, and the inner U-shaped plate is located within the enclosure of the adjacent outer U-shaped plate to form two exhaust channels 300.

[0059] This embodiment employs a nested structure with U-shaped plates of alternating opposite orientations, which stably forms two independent, regularly oriented, and tortuous exhaust channels 300 within a limited space. The structure is compact and highly efficient in space utilization. The alternating U-shaped plates allow airflow to repeatedly deflect and buffer within the exhaust channels 300, effectively extending the exhaust path and increasing airflow energy consumption. This structure balances compactness with high noise reduction efficiency.

[0060] In some embodiments, the outer limiting mechanism 630 has several interference flow plates 650 connected to its U-shaped plate, and the interference flow plates 650 are arranged at intervals on the inner wall surface in the middle of the U-shaped plate.

[0061] In this embodiment, spaced-apart baffles 650 are provided on the inner wall of the U-shaped plate of the outer limiting mechanism 630, which can disturb and buffer the airflow in the exhaust channel 300. When the airflow impacts the baffles 650, it is divided and dispersed, forming a series of irregular turbulence and micro vortices, thereby effectively breaking the stable flow state of the airflow, greatly increasing the friction inside the airflow and between the airflow and the wall of the exhaust channel 300, consuming more airflow sound energy, further improving the noise reduction effect, and making the oxygen concentrator operate more quietly.

[0062] In some embodiments, the U-shaped plate of the central limiting mechanism 620 is provided with a connecting port 641 to additionally connect the head exhaust section 310 and the detour section 320.

[0063] In this embodiment, a connecting port 641 is opened on the U-shaped plate 640 of the middle limiting mechanism 620, which adds a connecting path between the first exhaust section 310 and the detour section 320, achieving additional connection. This allows the airflow to enter the detour section 320 in a dispersed manner, which plays a role in diverting and depressurizing the exhaust airflow and reducing the noise problem that may be caused by the concentrated high-speed impact of the airflow.

[0064] It should be noted that the inner limiting mechanism, the middle limiting mechanism, and the outer limiting mechanism can also have L-shaped plates. In this way, the exhaust channel can be formed by multiple L-shaped plates arranged at intervals. For example, multiple L-shaped plates are arranged at intervals along an oblique direction, so that the exhaust channel is L-shaped.

[0065] In some embodiments, the muffler 500 is disposed within the tail exhaust section 330.

[0066] In this embodiment, the silencing mechanism 500 is set in the tail exhaust section 330. The airflow velocity in the tail exhaust section 330 has been significantly reduced due to the extension of the path and the change of the cross section, and the flow state is relatively stable. This provides more ideal working conditions for the silencing mechanism 500 (such as porous materials, resonant structures, etc.), enabling the silencing mechanism 500 to absorb and attenuate residual noise more efficiently and effectively improve the quietness of the oxygen generator.

[0067] Combination Figure 3As shown, in some embodiments, the width D1 of the detour section is smaller than the width D2 of the tail exhaust section. This embodiment creates a narrow-to-wide exhaust channel by designing the detour section 320 as a narrow channel and the tail exhaust section 330 as a wide channel. Within the narrower detour section 320, the airflow is constrained by the channel, enhancing friction between the airflow and the channel wall, as well as internal shearing, which helps dissipate sound energy. Subsequently, entering the enlarged tail exhaust section 330, the airflow volume increases, and the pressure and velocity decrease, achieving smooth pressure relief and slow flow guidance, thereby attenuating noise. This design, through the synergistic effect of a two-stage noise reduction mechanism—accelerating frictional energy dissipation in the detour section and reducing pressure and volume in the tail exhaust section—makes the exhaust process quieter.

[0068] Combination Figures 1 to 5 As shown, in some embodiments, the oxygen generator also includes a base 140, with a housing 110 covering the base 140. The base 140 has an air inlet 141 and an exhaust outlet 142. The air inlet 141 is connected to the air inlet 111 and the exhaust channel 300, respectively. The exhaust outlet 142 is connected to the exhaust channel 300 and the air outlet 112, respectively. The airflow enters the exhaust channel 300 through the air inlet 141 and is finally discharged to the external environment through the exhaust outlet 142. The base 140 is provided with a positioning groove 143. At least one of the inner limiting mechanism 610, the middle limiting mechanism 620, and the outer limiting mechanism 630 is inserted into the positioning groove 143.

[0069] In this embodiment, a positioning groove 143 is provided on the base 140, so that at least one of the inner limiting mechanism 610, the middle limiting mechanism 620 and the outer limiting mechanism 630 can be inserted into the positioning groove 143. This enables the corresponding limiting mechanism 600 to be quickly positioned and reliably installed, effectively preventing displacement or loosening during operation and ensuring the stability of the shape and path of the exhaust channel 300. At the same time, this insertion structure is easy to assemble and has high positioning accuracy, which helps to improve the assembly efficiency and structural reliability of the oxygen generator and ensures stable noise reduction effect.

[0070] For example, the inner limiting mechanism 610 is inserted into the positioning groove 143, or the middle limiting mechanism 620 is inserted into the positioning groove 143, or the outer limiting mechanism 630 is inserted into the positioning groove 143.

[0071] For example, the inner limiting mechanism 610 and the middle limiting mechanism 620 are respectively inserted into the positioning groove 143, or the inner limiting mechanism 610 and the outer limiting mechanism 630 are respectively inserted into the positioning groove 143, or the middle limiting mechanism 620 and the outer limiting mechanism 630 are respectively inserted into the positioning groove 143.

[0072] For example, the inner limiting mechanism 610, the middle limiting mechanism 620 and the outer limiting mechanism 630 are all inserted into the positioning groove 143.

[0073] Combination Figure 4 and Figure 9 As shown, in some embodiments, the silencing mechanism 500 includes a silencing plate 510, which is connected to the opposite side walls of the exhaust channel 300. The silencing plate 510 is provided with a plurality of silencing holes to form a silencing area. The silencing mechanism 500 adopts the structure of the silencing plate 510 and connects it to the opposite side walls of the exhaust channel 300. By providing a plurality of silencing holes on the silencing plate 510, the airflow can be throttled, disturbed, and resonantly absorbed when flowing through the silencing plate 510, effectively consuming the sound energy in the airflow, further attenuating the exhaust noise, and forming a stable silencing area within the exhaust channel 300.

[0074] In some embodiments, the muffler 510 includes a first muffler 511 and a second muffler 512, which are spaced apart. The first muffler 511 has a first muffler region 5111, and the second muffler 512 has a second muffler region 5121. This embodiment, by configuring the muffler 510 as a spaced-apart first muffler 511 and second muffler 512, and forming the first muffler region 5111 and the second muffler region 5121 respectively, can constitute a multi-stage, segmented muffler structure within the exhaust channel 300. As the airflow passes sequentially through the first muffler region 5111 and the second muffler region 5121, it can achieve multiple disturbances and progressive attenuation of sound energy, further improving the muffler effect and reducing exhaust noise more effectively, ensuring quieter operation of the oxygen concentrator.

[0075] In some embodiments, under orthographic projection, the first silencing region 5111 and the second silencing region 5121 are staggered. This embodiment provides a staggered arrangement between the first silencing region 5111 and the second silencing region 5121, allowing the airflow to form a tortuous flow path between the two silencing plates 510, preventing the airflow from passing through in a straight line and extending the interaction time between the airflow and the silencing structure. Simultaneously, it further enhances airflow disturbance, allowing sound energy to be more fully dissipated and absorbed, significantly improving the noise reduction effect of the multi-stage silencing structure and making the oxygen concentrator exhaust quieter.

[0076] In some embodiments, the silencing mechanism 500 includes sound-absorbing cotton (not shown), with its opposite ends connected to opposite sides of the exhaust channel 300, so that the sound-absorbing cotton spans across the exhaust channel 300. When airflow passes through the sound-absorbing cotton, it penetrates or bypasses the porous fiber structure of the sound-absorbing cotton. When sound waves propagate in the gaps between the fibers, they undergo intense friction with the fibers, thereby efficiently dissipating sound energy and effectively reducing exhaust noise.

[0077] It should be noted that, in addition to spanning the exhaust channel 300, the sound-absorbing cotton can also be placed on the wall of the exhaust channel 300, providing a sound-absorbing layer for the inner wall of the airflow channel. When sound waves propagate within the channel and come into contact with the wall surface containing the sound-absorbing cotton, their energy is absorbed by the porous structure of the sound-absorbing cotton. This arrangement does not significantly change the shape of the main airflow channel or the flow resistance; it primarily targets the absorption of noise propagating and reflected along the wall surface, thereby reducing exhaust noise.

[0078] Alternatively, the sound-absorbing cotton may be, but is not limited to, porous sound-absorbing materials such as glass fiber cotton, polyester fiber cotton, or ceramic fiber cotton.

[0079] Combination Figure 3 As shown, in some embodiments, the oxygen generator further includes a first sound insulation module 710, a support member 720, and a second sound insulation module 730. The first sound insulation module 710 is mounted on the base 140; the support member 720 is mounted on the base 140 and forms an exhaust chamber 740 between it and the first sound insulation module 710; the second sound insulation module 730 is mounted on the support member 720 and is located on the upper side of the support member 720.

[0080] In this embodiment, a first sound insulation module 710 is provided on the lower inner side of the exhaust chamber 740, and a second sound insulation module 730 is provided on the upper outer side of the exhaust chamber 740. The first sound insulation module 710 and the second sound insulation module 730 form a double-layer sound insulation structure, which can effectively reduce the noise of airflow in the exhaust chamber 740, reduce the outward transmission of noise, and improve the quietness of the oxygen concentrator.

[0081] Optionally, the first sound insulation module 710 and the second sound insulation module 730 may include, but are not limited to, sound-absorbing cotton, foam metal, porous ceramic, micro-perforated plate or any combination of the aforementioned structures.

[0082] Combination Figure 3 , Figure 4 , Figure 6 and Figure 9 As shown, in some embodiments, the support member 720 includes a support platform 721 and a plurality of limiting mechanisms 600, the support platform 721 being connected to the plurality of limiting mechanisms 600; the support platform 721 has an installation cavity 722, and the second sound insulation module 730 is installed in the installation cavity 722; the plurality of limiting mechanisms 600 are distributed in the exhaust cavity 740 to form an exhaust channel 300 in the exhaust cavity 740.

[0083] The second sound insulation module 730 is installed in the mounting cavity 722, which allows for positioning and installation of the second sound insulation module 730, improving assembly stability and structural reliability, and preventing the second sound insulation module 730 from shaking or shifting. Multiple limiting mechanisms 600 are distributed in the exhaust cavity 740, which can guide and regulate the airflow, forming a stable exhaust channel 300 in the exhaust cavity 740.

[0084] It should be noted that the multiple limiting mechanisms 600 are the aforementioned inner limiting mechanism 610, middle limiting mechanism 620, and outer limiting mechanism 630.

[0085] In some embodiments, the first sound insulation module 710 is divided into multiple independent sound insulation panels by the positioning groove 143, so as to split the first sound insulation module 710 into multiple independent sound insulation panels, reduce the size of a single panel, facilitate processing and forming, and effectively reduce the warping and deformation problems that are prone to occur in large-sized panels.

[0086] In some embodiments, the compressor 120 is disposed on the upper side of the support member 720 and the second sound insulation module 730; the support member 720 has an air inlet 141 at the middle position, the air inlet 141 communicates with the exhaust chamber 740, and the air inlet 141 is located below the compressor 120; the second sound insulation module 730 has a first clearance through hole (not shown in the figure) corresponding to the air inlet 141.

[0087] The second sound insulation module 730 blocks the noise of the compressor 120, reduces noise radiation, and improves the quietness of the oxygen concentrator; the first clearance through hole is set to correspond with the air inlet 141 to prevent structural interference and ensure smooth air intake.

[0088] Combination Figure 3 and Figure 6 As shown, in some embodiments, a shock-absorbing structure 800 is provided between the compressor 120 and the support member 720. The shock-absorbing structure 800 includes a first pad 810, a spring 820, and a second pad 830. The first pad 810 is connected to the compressor 120, the second pad 830 is connected to the support member 720, the first end of the spring 820 is connected to the first pad 810, and the second end of the spring 820 is connected to the second pad 830. In this embodiment, by providing a shock-absorbing structure 800 composed of the first pad 810, the spring 820, and the second pad 830 between the compressor 120 and the support member 720, the vibration generated during the operation of the compressor 120 can be buffered by the elastic deformation of the spring 820, reducing the transmission of vibration to the base 140 and the outer casing 110 of the oxygen concentrator, thereby reducing the vibration amplitude of the oxygen concentrator.

[0089] In some embodiments, the support member 720 has a limiting groove 723 located on the upper side of the support platform 721; the second pad 830 is installed in the limiting groove 723; the second sound insulation module 730 has a second clearance through hole (not shown in the figure) corresponding to the limiting groove 723.

[0090] The second pad 830 is installed in the limiting groove 723. The limiting groove 723 can circumferentially limit and position the second pad 830, effectively constraining its position and preventing displacement during compressor 120 operation. This ensures the vibration damping structure 800 is always in an effective working position, improving the operational stability of the oxygen generator. The second sound insulation module 730 has a second clearance through hole corresponding to the limiting groove 723 to prevent assembly interference between the second sound insulation module 730 and the support member 720 due to the presence of the limiting groove 723.

[0091] It should be noted that the arrows in the accompanying drawings indicate the direction of airflow.

[0092] The working principle of an oxygen concentrator is as follows: Air flows into the second silencer chamber 270 through the air inlet 111 for silencer treatment. After the air flows out of the second silencer chamber 270, it is compressed by the compressor 120. The compressed air flows into the molecular sieve device 130 for nitrogen-oxygen separation, separating nitrogen and high concentration of oxygen. The separated oxygen flows into the oxygen storage tank 150 for storage, and finally flows into the humidification bottle 160. The user picks up the humidification bottle 160 to inhale oxygen. The separated nitrogen flows into the first silencing chamber 220 for silencing treatment, then flows into the equipment sound insulation chamber 210, and is quickly flowed into the exhaust channel 300 under the drive of the blower 400, and finally discharged into the external environment, taking away the heat generated by the compressor 120 in the process.

[0093] It should be noted that oxygen concentrators can be equipped with filters to filter the air; oxygen concentration sensors to monitor oxygen concentration; flow meters to monitor oxygen flow; heat dissipation aluminum pipes to cool the compressed air; sterilizers to disinfect the oxygen; and molecular sieve devices can include two molecular sieve units that are used alternately, allowing the oxygen concentrator to provide oxygen for extended periods.

[0094] This application also discloses a vehicle that includes an oxygen concentrator as described in any of the above embodiments, which can significantly reduce the noise generated during the operation of the oxygen concentrator, thereby effectively solving the problem of high noise levels in the oxygen concentrator, reducing interference to people inside the vehicle, and improving the user experience.

[0095] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.

Claims

1. An oxygen generator, characterized in that, include: A base having an air inlet and an exhaust outlet; A first sound insulation panel is installed on the base. A support member is mounted on the base and forms an exhaust chamber between it and the first sound insulation plate; the exhaust chamber has at least one exhaust channel, which communicates with the air inlet and the exhaust outlet, and at least one exhaust channel has a detour section. The second sound insulation panel is installed on the support member and located on the upper side of the support member; A muffler mechanism is disposed within at least one of the exhaust passages; During the exhaust process, the gas flows through the detour section and comes into contact with the muffler mechanism.

2. The oxygen generator according to claim 1, characterized in that: The oxygen generator includes, from the inside out, an inner limiting mechanism, a middle limiting mechanism, and an outer limiting mechanism. There is at least one middle limiting mechanism, which is located between the inner limiting mechanism and the outer limiting mechanism. A first exhaust path is formed between the air inlet and the inner limiting mechanism; The detour segment is formed between the inner limiting mechanism and the middle limiting mechanism, and between each of the middle limiting mechanisms; A tail exhaust path is formed between the middle limiting mechanism and the outer limiting mechanism; The first exhaust section, the detour section, and the last exhaust section are connected in sequence to form the exhaust channel.

3. The oxygen generator according to claim 2, characterized in that: The inner limiting mechanism, the middle limiting mechanism, and the outer limiting mechanism all have U-shaped plates. The openings of two adjacent U-shaped plates face opposite directions, and the inner U-shaped plate is located within the enclosure of the adjacent outer U-shaped plate to form two exhaust channels.

4. The oxygen generator according to claim 3, characterized in that: The U-shaped plate of the external limiting mechanism is connected to several turbulence plates, and the turbulence plates are arranged at intervals on the inner wall surface in the middle of the U-shaped plate. And / or, the U-shaped plate of the central limiting mechanism is provided with a connecting port to additionally connect the head exhaust section and the detour section.

5. The oxygen generator according to claim 2, characterized in that: The muffler is located within the tail exhaust section; And / or, the width of the detour section is smaller than the width of the tail exhaust section; And / or, the base is provided with a positioning groove, and at least one of the inner limiting mechanism, the middle limiting mechanism and the outer limiting mechanism is inserted into the positioning groove.

6. The oxygen generator according to claim 1, characterized in that: The silencing mechanism includes a silencing plate connected to the opposite side walls of the exhaust channel. The silencing plate is provided with a number of silencing holes to form a silencing area.

7. The oxygen generator according to claim 6, characterized in that: The sound-absorbing plate includes a first sound-absorbing plate and a second sound-absorbing plate, which are spaced apart; the first sound-absorbing plate has a first sound-absorbing area, and the second sound-absorbing plate has a second sound-absorbing area.

8. The oxygen generator according to claim 7, characterized in that: The first silencing region and the second silencing region are staggered.

9. The oxygen generator according to claim 1, characterized in that: The noise reduction mechanism includes noise-absorbing cotton; The two ends of the sound-absorbing cotton are respectively connected to the opposite sides of the exhaust channel, and / or the sound-absorbing cotton is disposed on the wall of the exhaust channel.

10. A vehicle, characterized in that, Includes the oxygen generator as described in any one of claims 1 to 9.

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