A heat dissipation structure of a compressor of an oxygen generator
By introducing waste nitrogen gas injection into the oxygen generator compressor to assist in heat dissipation, a composite heat dissipation system is formed, which solves the problems of high energy consumption and resource waste of the compressor, and achieves efficient heat dissipation and energy consumption reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SHUANGXI MEDICAL EQUIP CO LTD
- Filing Date
- 2025-09-24
- Publication Date
- 2026-07-21
AI Technical Summary
Molecular sieve oxygen generator compressors consume a lot of heat during long-term operation, and waste nitrogen is not effectively utilized, resulting in resource waste and low heat dissipation efficiency.
A composite heat dissipation mode is adopted. The waste nitrogen gas after noise reduction by the nitrogen exhaust silencer is used to form a directional cooling airflow through the airflow guide to assist the compressor in heat dissipation. It works together with the cooling fan to form a dual heat dissipation system.
It significantly improves heat dissipation capacity, reduces fan workload, reduces overall power consumption, extends the lifespan of fans and compressors, and makes full use of waste nitrogen resources.
Smart Images

Figure CN224532920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of internal heat dissipation technology for oxygen concentrators, specifically a heat dissipation structure for an oxygen concentrator compressor. Background Technology
[0002] The compressor of a molecular sieve oxygen generator generates a large amount of heat during prolonged operation. Overheating can lead to decreased efficiency, shortened lifespan, or even shutdown. Currently, the mainstream cooling solution is to use a cooling fan for forced air cooling. However, this method has some problems: the fan consumes a lot of energy while running continuously, and it is also a noise source and a potential point of failure. As a single cooling method, the compressor's heat dissipation efficiency needs to be further improved.
[0003] On the other hand, during the oxygen production process, the oxygen generator continuously discharges dry waste nitrogen gas from the nitrogen exhaust silencer outlet. The energy of this gas flow is not utilized and is directly released into the environment, resulting in resource waste. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a heat dissipation structure for an oxygen generator compressor, which solves the problems of high energy consumption for heat dissipation in existing compressors and the ineffective utilization of nitrogen flow from exhaust gases.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A heat dissipation structure for an oxygen generator compressor includes a compressor and a casing. The casing is located outside the compressor, and the compressor is fixedly connected to the bottom of the casing cavity. A cooling fan that directly blows onto the compressor is installed on the casing. A nitrogen exhaust silencer is detachably installed on the casing cavity wall. An airflow guide is connected to the outlet end of the nitrogen exhaust silencer, and the airflow guide guides the nitrogen discharged from the nitrogen exhaust silencer to blow onto the surface of the compressor body.
[0007] Preferably, the waste nitrogen gas, after being reduced in noise by the nitrogen exhaust silencer, forms a directional cooling airflow through the airflow guide section, blows onto the surface of the compressor housing, and is discharged from the housing through the air outlet located at the housing.
[0008] Preferably, the chassis is composed of multiple sheet metal shells, one of which has an air vent.
[0009] Preferably, multiple sets of fixing brackets are symmetrically arranged on one side of the nitrogen exhaust silencer, and mating holes that match the fixing brackets are opened on the side wall of the chassis.
[0010] Preferably, a sound-absorbing cotton block is fixedly connected to the cavity wall of the chassis.
[0011] This utility model has the following beneficial effects:
[0012] The oxygen concentrator compressor's heat dissipation structure, through the arrangement of airflow guides on the nitrogen exhaust silencer, allows the exhaust nitrogen, after noise reduction by the silencer, to be directed and cooled by airflow onto the compressor casing surface. This, together with the cooling fan, forms a composite heat dissipation system, creating a dual heat dissipation mode of "forced air cooling by the cooling fan + auxiliary cooling by exhaust nitrogen injection." This significantly improves heat dissipation capacity compared to a single air cooling system, effectively addressing the heat dissipation challenges under high loads or high temperatures. Furthermore, the exhaust nitrogen-assisted cooling requires no additional energy consumption, and its effective cooling effect reduces the workload of the main cooling fan, allowing it to operate at lower speeds most of the time, thereby reducing overall energy consumption. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention (the front sheet metal shell of the chassis is hidden).
[0014] Figure 2 This is a schematic diagram of the disassembled structure of the main components of this utility model;
[0015] Figure 3 This is a schematic diagram of the layout structure of the airflow guide part of this utility model;
[0016] Figure 4 This is a schematic diagram of the actual application structure of this utility model (the front sheet metal shell of the chassis is hidden).
[0017] In the diagram: 1. Chassis; 11. Air outlet; 12. Mating hole; 2. Compressor; 3. Cooling fan; 4. Nitrogen exhaust silencer; 41. Mounting bracket; 5. Airflow guide. Detailed Implementation
[0018] 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.
[0019] A heat dissipation structure for an oxygen generator compressor 2 includes a compressor 2 and a casing 1. The casing 1 covers the outside of the compressor 2. The compressor 2 is fixedly connected to the bottom of the casing 1. A cooling fan 3 that blows directly onto the compressor 2 is provided on the casing 1. A nitrogen exhaust silencer 4 is detachably installed on the wall of the casing 1. An airflow guide part 5 is connected to the outlet 11 end of the nitrogen exhaust silencer 4. The airflow guide part 5 guides the nitrogen discharged from the nitrogen exhaust silencer 4 to blow it toward the surface of the compressor 2.
[0020] like Figure 1 and Figure 2As shown, in the above technical solution, by arranging an airflow guide 5 on the nitrogen exhaust silencer 4, the waste nitrogen gas, after noise reduction by the nitrogen exhaust silencer 4, can be directed through the airflow guide 5 to form a directional cooling airflow, which blows onto the surface of the compressor 2 housing. Together with the cooling fan 3, this forms a composite cooling system for the compressor 2, creating a dual cooling mode of "forced air cooling by the cooling fan + waste nitrogen injection-assisted cooling." The cooling capacity is significantly higher than that of a single air cooling system, effectively addressing the cooling challenges under high load or high temperature environments. Simultaneously, the waste nitrogen-assisted cooling requires no additional energy consumption, and its effective cooling effect reduces the workload of the main cooling fan 3, allowing the fan to operate at a lower speed most of the time, thereby reducing the overall power consumption of the machine.
[0021] With the aforementioned synergistic composite heat dissipation system, improved heat dissipation conditions extend the lifespan of compressor 2 and the most frequently used cooling fan 3, enhancing the overall reliability and durability of the machine. Furthermore, this solution fully utilizes existing structures and waste energy, requiring only the addition of a simple guide device, resulting in minimal hardware cost while delivering a significant performance improvement, making it highly valuable for market promotion.
[0022] The waste nitrogen gas, after being reduced in noise by the nitrogen exhaust silencer 4, forms a directional cooling airflow through the airflow guide 5, blowing onto the surface of the compressor 2 housing, and is discharged from the casing 1 through the air outlet 11 located at the casing 1. Figure 2 and Figure 4 As shown, in this technical solution, driven by the cooling fan 3, the nitrogen gas blown to cool the compressor 2 is discharged from the air outlet 11 on the chassis 1, thereby ensuring good heat dissipation circulation and improving the heat dissipation effect of the compressor 2 inside the chassis 1.
[0023] like Figure 2 As shown, in this technical solution, the chassis 1 is composed of multiple sheet metal shells, one of which has an air outlet 11.
[0024] The nitrogen exhaust silencer 4 has multiple sets of fixing brackets 41 symmetrically arranged on one side, and the side wall of the casing 1 has mating holes 12 that match the fixing brackets 41 one by one. Figure 3 and Figure 4 As shown, in practical applications, the nitrogen exhaust silencer 4 can be detachably installed by passing a cable tie through the mating hole 12 and the fixing bracket 41, which facilitates daily cleaning and replacement of the nitrogen exhaust silencer 4.
[0025] Sound-absorbing cotton blocks are fixedly connected to the cavity wall of the chassis 1. For example... Figure 4 As shown in the figure, in this technical solution, the noise generated by the compressor 2 inside the chassis 1 during operation can be further reduced by the sound-absorbing cotton blocks.
[0026] 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.
[0027] 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 heat dissipation structure for an oxygen generator compressor, characterized in that, It includes a compressor and a casing. The casing is located outside the compressor. The compressor is fixedly connected to the bottom of the casing cavity. The casing is equipped with a cooling fan that blows directly onto the compressor. A nitrogen exhaust silencer is detachably installed on the casing cavity wall. An airflow guide is connected to the outlet end of the nitrogen exhaust silencer. The airflow guide guides the nitrogen discharged from the nitrogen exhaust silencer to blow onto the surface of the compressor body.
2. The heat dissipation structure of the oxygen generator compressor according to claim 1, characterized in that: After the nitrogen exhaust silencer reduces noise, the waste nitrogen gas forms a directional cooling airflow through the airflow guide, blows on the surface of the compressor housing, and is discharged from the housing through the air outlet located at the housing.
3. The heat dissipation structure of the oxygen generator compressor according to claim 2, characterized in that: The chassis is composed of multiple sheet metal shells, one of which has an air vent.
4. The heat dissipation structure of the oxygen generator compressor according to claim 1 or 2, characterized in that: The nitrogen exhaust silencer has multiple sets of fixing brackets symmetrically arranged on one side, and the side wall of the chassis has mating holes that match the fixing brackets one by one.
5. The heat dissipation structure of the oxygen generator compressor according to claim 1, characterized in that: Sound-absorbing cotton blocks are fixedly connected to the cavity wall of the chassis.