Electric breathing assistance apparatus and dual cooling of motor equipped therewith
A technology of breathing aids and equipment, applied in the direction of respirators, mechanical equipment, electric components, etc., can solve the problems of not being able to provide motor ventilation, shortening the life of the motor, and the solution is not completely satisfactory
Pending Publication Date: 2022-06-07
AIRFAN
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AI Technical Summary
Problems solved by technology
[0011] However, the solutions proposed by the prior art are not entirely satisfactory and improvements are required to best meet the structural and functional requirements of such respiratory assistance devices
[0012] It has been more specifically found that the solutions proposed by the prior art for cooling motors of equipment equipment do not provide ventilation of the motor over a wide range of adjustments to the flow and / or pressure of the air flow(s) circulating through the equipment
This presents the disadvantage that certain operating ranges of the motor cause subsequent heating of the motor, shortening the life of the motor
Method used
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[0053] The accompanying drawings and their non-limiting detailed description explain the invention in a particular manner, which is not limiting with respect to the scope of the invention as defined by the claims. These drawings and their specific embodiments may be used to better understand and define the invention by referring, if necessary, to the general description of the invention that has just been given.
[0054] exist figure 1 and figure 2 Among them, electric devices 1a, 1b for the regulated delivery of gas are applied to the patient's breathing assistance. The devices 1a, 1b have an axial extension A1 and form a housing 1 essentially formed by a volute 9 and a sheath 19 assembled together axially. The sheath 19 defines a compartment 2 that receives the motor block 3 inside the device 1a, 1b. The motor block 3 comprises a housing 4 that houses an electric motor 5 comprising a stator 6a and a rotor 6b which rotatably drives a motor shaft 7 and is mounted on rollin...
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The invention relates to a motor breathing assistance apparatus with an integrated cooling system. The apparatus comprises a housing (1) forming a compartment (2) housing a motor unit (3) driving turbines (8a, 8b) to generate a primary breathing assistance airflow (F1) and an assistance airflow (F2), respectively, for cooling a motor included in the motor unit (3). The auxiliary airflow (F2) is conveyed through an auxiliary pneumatic path (E2, E4, E5, 22, E3, S2) comprising an inner portion (E2, E4, E5, 22) extending between the stator (6a) and the rotor (6b) into the motor (5) and an outer portion (E3, S2) extending into an annular space (E3) provided around the motor unit (3). Furthermore, the cooling air flow (F2) flows in opposite directions in the inner part (E4) and the outer part (E3), and the main pneumatic path (E1, E6, S1) and the auxiliary pneumatic path (E2, E4, E5, 22, E3, S2) are separated from each other by a partition (18) arranged between the main pneumatic path (E1, E6, S1) and the auxiliary pneumatic path (E2, E4, E5, 22, E3, S2).
Description
technical field [0001] The present invention relates to the field of electric devices for delivering pressure and flow regulated gases, such as, in particular, breathing assistance gases. The device of the present invention is a respiratory assistance device comprising a dual cooling system based on ventilation of the motor equipped with the device while creating a separation between the respiratory assistance gas delivered to the patient and the cooling airflow for the motor. [0002] For example, electrically powered devices for regulated delivery of gas typically include a chamber housing a motor that drives a turbine, such as a vane rotor. A motor-driven turbine generates the gas stream from which the gas to be transported is produced by adding at least one additive that depends on the composition of the gas to be delivered. [0003] The chamber also forms a pneumatic circuit through which the gas flow from which the gas to be delivered is circulated circulates. The air ...
Claims
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IPC IPC(8): H02K5/20H02K9/06H02K9/10H02K7/14A61M16/12A61M16/00
CPCH02K5/207H02K9/06H02K9/10H02K7/14A61M16/122A61M16/0066A61M16/12A61M2205/362A61M2202/0208A61M2205/3606F04D25/082F04D25/0606F04D29/4226H02K9/14F04D29/5806H02K5/20F04D17/16
Inventor 泽维尔·普拉特
Owner AIRFAN