Meet the challenges and develop the circuit boards and solenoid valves for INVACARE oxygen concentrators.

2024-07-29 20:41

solenoid valve

First of all, let's talk about the INVACARE factory. INVACARE oxygen concentrators are developed and produced by Invacare Corporation and are mainly used for oxygen therapy and health care oxygen production in medical institutions and households. This oxygen concentrator adopts the physical oxygen production principle, and through the pressure swing adsorption of molecular sieves, separates oxygen and nitrogen from the air directly at room temperature, extracts high-purity medical oxygen, and realizes continuous and uninterrupted oxygen supply. INVACARE oxygen concentrators can operate continuously and uninterruptedly for 24 hours a day for 3 years, and its market share in Europe and the United States is as high as over 70%. The production standards of INVACARE oxygen concentrators are higher than the international industry standards.

4 Way 2 Position

Due to business adjustments, INVACARE decided to replace some of the original accessories with domestic ones, which was exactly the opportunity for us to get involved. After receiving the order, we immediately organized the R & D team to start the work.

solenoid valve

At the beginning of the R & D, many problems were faced. For example, the INVACARE factory had extremely high performance requirements for the circuit board, which needed to achieve complex functions in a very small space, while also ensuring good heat dissipation and anti-interference capabilities. In terms of the solenoid valve, the requirements for the accuracy and response speed of the valve core were almost harsh.

4 Way 2 Position

Take the heat dissipation problem of the circuit board as an example. We tried various solutions, from changing the layout of the circuit board to selecting special heat dissipation materials. After countless tests and optimizations, we finally found a relatively ideal solution.


In terms of improving the accuracy of the valve core of the solenoid valve, we communicated repeatedly with the processing manufacturer and continuously adjusted the process parameters, and finally achieved a significant improvement in accuracy.


During the entire R & D process, teamwork was crucial. From circuit design engineers to mechanical engineers to test personnel, everyone played their professional advantages and jointly overcame one difficulty after another.

solenoid valve

Finally, when we successfully developed the circuit boards and solenoid valves that met the requirements of the INVACARE, the sense of achievement was really indescribable. This not only solved practical problems for the INVACARE but also enabled our team to achieve an important technological breakthrough. 


This cooperation with Factory INVACARE is a good beginning. We will continue to pay attention to the development trends and technological innovations in the industry, constantly improve our own R&D capabilities, provide high-quality solutions for more enterprises, and jointly promote the progress of the industry. 


About us.

Shenyang HOlian Precision instrument co.,Ltd founded in 2017,is specialized production of oxygen generator accessories :Miniature solenoid valve for Portable Medical oxygen generator,4 Way 2 position Medical oxygen generator,3L to 10L Medical Oxygen Generator Solenoid Valve,pressure regulator assembly for oxygen concentrator,Pressure reducing Assembly for oxygen concentrator,Pinhole flowmeter of oxygen concentraror,Pinhole flowmeter of Medical oxygen concentrator,5L flowmeter for oxygen concentrator,Special firesafe Valve for oxygen concentrator,Firesafe Cannula Valve Oxygen Supply Tubing Connector,Oxygen primary filter,Medical Grade Filter,Check valve (material PA6),Check valve (material ABS),Oxygen generator accessories Molecular sieve tank head,Oxygen Concentrator Accessories Air Filters,Oxygen Concentrator Accessories NPT1/8-∅8 Connector,Oxygen Concentrator Accessories NPT1/8-∅10 Connector,Oxygen Concentrator Accessories 3 way Nozzle,Oxygen Concentrator Accessories 90° Nozzle,Mold manufacturing and i jection molding.4 Way 2 Position

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