Breathing machine system

Abstract

The invention relates to a respirator system. The breathing machine system comprises an air inlet cavity, an oxygen inlet cavity, a fan and an air outlet cavity, and an oxygen transfer-in hole is formed in an outer cavity of the fan; the air inlet cavity is used for transmitting external air into the fan; the oxygen inlet cavity is used for transmitting oxygen into the fan through the oxygen transfer-in hole; and the fan is used for mixing outside air and oxygen in the fan to obtain mixed gas and transmitting the mixed gas to the air outlet cavity. By the adoption of the method, oxygen can be conveyed to the fan through the oxygen transfer-in hole and stirred and mixed with external air in the fan, and compared with an existing mode that oxygen is directly conveyed to the air outlet cavity through an oxygen inlet machine to be mixed, oxygen and air are stirred and mixed in the fan firstly, then flow mixing is conducted through the air outlet cavity, and the oxygen-air mixing efficiency is improved. Through two times of mixing, the oxygen-air mixing efficiency is greatly improved, the working efficiency of the breathing machine is improved, and then the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of medical equipment, and in particular to a ventilator system. Background Art

[0002] Ventilators are commonly used medical devices that usually need to provide different oxygen concentrations for different groups of people and in different ventilation modes.

[0003] At present, ventilators mainly rely on mechanical valves to control the flow ratio of air and oxygen by adjusting the opening degree of the mechanical valves.

[0004] However, the above-mentioned ventilator has the problem of low oxygen-air mixing efficiency. Summary of the Invention

[0005] Based on this, it is necessary to provide a ventilator system that can improve the oxygen-air mixing efficiency in the ventilator in response to the above technical problems.

[0006] In a first aspect, the present application provides a ventilator system, comprising: an air inlet chamber, an oxygen inlet chamber, a blower, and an air outlet chamber, wherein an oxygen transfer hole is provided on the outer cavity of the blower;

[0007] The air inlet cavity is used to transmit the outside air to the inside of the fan;

[0008] The oxygen inlet chamber is used to transmit oxygen to the interior of the blower through the oxygen transfer hole;

[0009] The fan is used to mix the outside air and oxygen inside the fan to obtain a mixed gas, and transmit the mixed gas to the air outlet chamber.

[0010] In this embodiment, oxygen is transferred to the fan through the oxygen transfer hole and stirred and mixed with the external air in the fan. Compared with the existing method of directly transferring oxygen to the air outlet chamber through the oxygen inlet machine for mixing, the present application first stirs and mixes the oxygen and air in the fan, and then flows and mixes them through the air outlet chamber. After two mixing, the oxygen-air mixing efficiency is greatly accelerated, the working efficiency of the ventilator is improved, and the user experience is improved.

[0011] In one embodiment, the air inlet chamber includes: a first air inlet chamber, a venturi tube, and a second air inlet chamber;

[0012] The first air inlet chamber is used to transmit external air to the venturi tube;

[0013] The venturi tube is used to rectify the outside air and obtain and transmit the rectified outside air to the second air inlet chamber;

[0014] The second air inlet cavity is used to transmit the rectified external air to the interior of the fan.

[0015] In this embodiment, by arranging a Venturi tube between the two air inlet chambers, the external air flowing from the first air inlet chamber 1 into the second air inlet chamber can be rectified, so that the external air flows more stably and evenly, thereby improving the subsequent measurement accuracy.

[0016] In one embodiment, the oxygen inlet chamber includes: a first oxygen inlet chamber, an oxygen gas block, and a second oxygen inlet chamber;

[0017] a first oxygen inlet chamber for transmitting oxygen to the oxygen gas block;

[0018] The oxygen gas block is used to rectify the oxygen, obtain and transmit the rectified oxygen to the second oxygen inlet chamber;

[0019] The second oxygen inlet chamber is used to transmit the rectified oxygen to the inside of the fan.

[0020] In this embodiment, by providing an oxygen gas block between the two oxygen inlet chambers, the oxygen flowing from the first oxygen inlet chamber to the second oxygen inlet chamber can be rectified, making the oxygen flow more stable and uniform, thereby improving subsequent measurement accuracy.

[0021] In one embodiment, a spoiler is provided in the air outlet cavity to accelerate the flow speed of the gas in the air outlet cavity.

[0022] In one embodiment, a pressure control module is provided in the air outlet chamber for adjusting the pressure of the mixed gas in the air outlet chamber according to a preset pressure threshold to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

[0023] In this embodiment, a pressure control module is provided in the air outlet chamber to control the pressure in the air outlet chamber 104 to be always at a preset pressure threshold, thereby ensuring that the oxygen concentration of the mixed gas transmitted to the user through the air outlet chamber 104 reaches the oxygen concentration expected by the user.

[0024] In one embodiment, a sensor and a control module are provided in the air outlet cavity, wherein:

[0025] The sensor is used to collect the pressure parameters, flow parameters and oxygen concentration of the mixed gas in the air outlet cavity;

[0026] The control module is used to adjust the pressure of the mixed gas in the air outlet chamber according to the pressure parameter and the flow parameter to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

[0027] In this embodiment, by setting a sensor and a control module in the air outlet chamber, the pressure of the mixed gas in the air outlet chamber is adjusted, thereby ensuring that the oxygen concentration of the mixed gas transmitted to the user through the air outlet chamber reaches the oxygen concentration expected by the user.

[0028] In one embodiment, the ventilator system further comprises:

[0029] The air inlet hole is arranged in the outer cavity of the fan and connects the air inlet cavity with the fan.

[0030] In one embodiment, the ventilator system further includes: an air inlet valve disposed inside the air inlet hole, for adjusting the flow rate of the external air transmitted to the blower.

[0031] In one embodiment, the ventilator system further comprises:

[0032] The air outlet is arranged in the outer cavity of the fan and connects the air outlet cavity with the fan.

[0033] In one embodiment, the ventilator system further comprises:

[0034] The inlet valve arranged inside the oxygen inlet hole is used to adjust the flow rate of oxygen transmitted to the blower.

[0035] In this embodiment, by setting an air inlet and an air outlet on the outer cavity of the fan of the ventilator system, setting an air inlet valve inside the air inlet, and setting a transfer valve in the oxygen transfer hole, the flow rate of oxygen and air transmitted to the inside of the fan can be adjusted, thereby reducing the difference between the oxygen concentration of the mixed gas and the expected oxygen concentration, thereby ensuring the mixing efficiency of the mixture.

[0036] The above-mentioned ventilator system includes: an air inlet chamber, an oxygen inlet chamber, a blower, and an air outlet chamber. The outer cavity of the blower is provided with an oxygen transfer hole; the air inlet chamber is used to transfer external air to the inside of the blower; the oxygen inlet chamber is used to transfer oxygen to the inside of the blower through the oxygen transfer hole; the blower is used to mix external air and oxygen inside the blower to obtain a mixed gas, and then transfer the mixed gas to the air outlet chamber. The present method can transfer oxygen to the blower through the oxygen transfer hole, and stir and mix it with the external air in the blower. Compared with the existing method of directly transferring oxygen to the air outlet chamber through the oxygen inlet, the present application first stirs and mixes the oxygen and air in the blower, and then flows and mixes them through the air outlet chamber. After two mixing, the oxygen-air mixing efficiency is greatly accelerated, the working efficiency of the ventilator is improved, and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic structural diagram of a ventilator system in one embodiment;

[0039] Figure 2 A schematic structural diagram of a ventilator system in another embodiment;

[0040] Figure 3 A schematic structural diagram of a ventilator system in another embodiment;

[0041] Figure 4 A schematic structural diagram of a ventilator system in another embodiment;

[0042] Figure 5 Schematic diagram of the implementation principle of a ventilator system in one embodiment.

[0043] Description of reference numerals:

[0044] 10-Ventilator system;

[0045] 101-air inlet cavity;

[0046] 1011-first air inlet cavity;

[0047] 1012-Venturi tube;

[0048] 1013-second air inlet cavity;

[0049] 102- oxygen inlet chamber;

[0050] 1021-first oxygen inlet chamber;

[0051] 1022-oxygen gas resistance;

[0052] 1023-second oxygen inlet chamber;

[0053] 103-fan;

[0054] 104-air outlet cavity;

[0055] 105-oxygen transfer hole;

[0056] 106-air inlet;

[0057] 107-Air outlet. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0059] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0062] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0063] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0064] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0065] Ventilators are commonly used medical devices that usually need to provide different oxygen concentrations for different groups of people and in different ventilation modes. Currently, ventilators mainly rely on mechanical valves to control the flow ratio of air and oxygen by adjusting the degree of opening of the mechanical valves. However, the above-mentioned ventilators have the problem of low oxygen-air mixing efficiency. The present application provides a new ventilator system that aims to solve the problem of low oxygen-air mixing efficiency in existing ventilators.

[0066] In an exemplary embodiment, Figure 1 As shown, a ventilator system 10 is provided, comprising: an air inlet chamber 101, an oxygen inlet chamber 102, a blower 103, and an air outlet chamber 104. An oxygen transfer hole 105 is provided on the outer cavity of the blower 103;

[0067] The air inlet chamber 101 is used to transmit external air to the interior of the fan 103;

[0068] The oxygen inlet chamber 102 is used to transfer oxygen to the interior of the blower 103 through the oxygen transfer hole 105;

[0069] The fan 103 is used to mix the external air and oxygen inside the fan 103 to obtain a mixed gas, and transmit the mixed gas to the air outlet chamber 104.

[0070] One end of the air inlet chamber 101 is connected to the outside air, and the other end of the air inlet chamber 101 is connected to the outer cavity of the fan 103, so that the air inlet chamber 101 transmits the outside air to the inside of the fan 103. When the fan 103 rotates, the pressure inside the fan 103 decreases, and the outside air in the air inlet chamber 101 can be quickly pressed into the fan 103, thereby maintaining a stable and high concentration of the input outside air and enhancing the mixing efficiency.

[0071] One end of the oxygen inlet chamber 102 is connected to the oxygen input port, and the other end of the oxygen inlet chamber 102 is connected to the oxygen transfer hole 105. The oxygen input port can be connected to an oxygen generator. When the oxygen generator delivers oxygen to the oxygen inlet chamber 102 via the oxygen input port, the oxygen inlet chamber 102 can transfer the oxygen to the interior of the fan 103 via the oxygen transfer hole 105. When the oxygen inlet chamber 102 is connected to the fan 103 via the oxygen transfer hole 105, the pressure inside the fan 103 decreases when the fan 103 rotates, and the oxygen in the oxygen inlet chamber 102 can be quickly pressed into the fan 103, thereby maintaining a stable and high input oxygen concentration, effectively increasing the proportion of oxygen in the mixed gas, and thus enhancing mixing efficiency.

[0072] Among them, the fan 103 can be at least one of a centrifugal fan, a turbine fan, a micro fan, an axial flow fan and a cross flow fan. Among them, the centrifugal fan can draw air and oxygen into the center through the rotating impeller, and then discharge it in the tangential direction, and has the advantages of high pressure output, stable operation and strong control function. Among them, the working principle of the turbine fan is similar to that of the centrifugal fan, but the structure of the turbine fan is more compact, the space utilization rate is large, and it has the advantages of fast response, high precision control and low noise. Among them, the micro fan is a miniaturized fan, which is usually used in portable or compact ventilators and has the advantages of small size, light weight, high speed, fast response and high pressure bearing capacity. Among them, the axial flow fan can draw and discharge air in the axial direction through blades parallel to the axis, and has the advantages of high flow output and simple structure. Among them, the cross flow fan can draw air from one side and discharge it from the other side through rotating blades, and has the advantages of uniform airflow distribution, compact design and low pressure output. It should be noted that when choosing a fan, you can choose a suitable fan based on the purpose of the ventilator (such as bi-level ventilation), application scenario (such as ventilator used at night), reliability (whether it can remain stable during long-term operation) and response speed.

[0073] It should be noted that by connecting the fan 103 and the air outlet chamber 104 in the early stage of the air supply to the user in the air outlet chamber 104, the oxygen-outside air mixing operation can be performed, and the high-purity oxygen is pre-mixed with an appropriate amount of outside air, so as to provide a stable gas source for the subsequent deep mixing of oxygen and outside air in the air outlet chamber 104 according to the expected oxygen concentration, thereby achieving the goal of improving the oxygen mixing efficiency.

[0074] Among them, a spoiler can also be provided in the air outlet chamber 104, or the air outlet chamber 104 can be set as a special mixing chamber or other unique design structures to accelerate the flow speed of the gas in the air outlet chamber 104, promote the full mixing of oxygen and air in the air outlet chamber 104, and finally deliver the fully and efficiently mixed mixed gas to the user, thereby improving the oxygen supply efficiency and accuracy.

[0075] The following describes the operating principle of the ventilator system provided in this embodiment. When a preset concentration of oxygen is required, the fan 103 in the ventilator 10 is first turned on. The rotation of the fan 103 reduces the pressure inside the fan 103, thereby allowing the outside air in the air inlet chamber 101 and the oxygen in the oxygen inlet chamber 102 (via the oxygen transfer hole 105) to be sucked into the fan 103. The outside air and oxygen inside the fan 103 are rapidly mixed under the rotation of the impeller of the fan 103 to obtain a mixed gas, which is then transmitted to the air outlet chamber 104 for transmission to the user via the air outlet chamber 104.

[0076] In this embodiment, oxygen is transferred to the fan through the oxygen transfer hole and stirred and mixed with the external air in the fan. Compared with the existing method of directly transferring oxygen to the air outlet chamber through the oxygen inlet machine for mixing, the present application first stirs and mixes the oxygen and air in the fan, and then flows and mixes them through the air outlet chamber. After two mixing, the oxygen-air mixing efficiency is greatly accelerated, the working efficiency of the ventilator is improved, and the user experience is improved.

[0077] In an exemplary embodiment, Figure 2 As shown, the air inlet chamber 101 includes: a first air inlet chamber 1011, a venturi tube 1012 and a second air inlet chamber 1013;

[0078] The first air inlet chamber 1011 is used to transmit external air to the venturi tube 1012;

[0079] The venturi tube 1012 is used to rectify the outside air and obtain and transmit the rectified outside air to the second air inlet chamber 1013;

[0080] The second air inlet cavity 1013 is used to transmit the rectified external air to the interior of the fan 103 .

[0081] It should be noted that before the external air in the first air inlet chamber 1011 enters the Venturi tube 1012, the flow state of the external air may be affected by the elbow, valve or other obstacles upstream of the pipeline, resulting in uneven flow, vortex or uneven velocity distribution. Therefore, a Venturi tube is arranged between the first air inlet chamber 1011 and the second air inlet chamber 1013, which can rectify the external air flowing from the first air inlet chamber 1011 to the second air inlet chamber 1013, so that the external air flows more stably and evenly, thereby improving the subsequent measurement accuracy.

[0082] Next, the operating principle of the ventilator system provided in this embodiment will be described. When it is necessary to obtain oxygen of a preset concentration, the fan 103 in the ventilator 10 is first turned on. The rotation of the fan 103 will reduce the pressure inside the fan 103, so that the outside air is sucked into the fan 103 through the first air inlet chamber 1011, the venturi tube 1012 and the second air inlet chamber 1013. At the same time, the oxygen is sucked into the fan 103 through the oxygen inlet chamber 102, so that the outside air and oxygen inside the fan 103 are quickly mixed under the rotation of the impeller of the fan 103 to obtain a mixed gas, and then the mixed gas is transmitted to the air outlet chamber 104 to be transmitted to the user via the air outlet chamber 104.

[0083] In this embodiment, by setting a Venturi tube between the two air inlet chambers, the external air flowing from the first air inlet chamber 1011 into the second air inlet chamber 1013 can be rectified, so that the external air flows more stably and evenly, thereby improving the subsequent measurement accuracy.

[0084] In an exemplary embodiment, please see Figure 2 The oxygen inlet chamber 102 includes: a first oxygen inlet chamber 1021, an oxygen gas block 1022 and a second oxygen inlet chamber 1023;

[0085] The first oxygen inlet chamber 1021 is used to transmit oxygen to the oxygen gas block 1022;

[0086] The oxygen gas block 1022 is used to rectify the oxygen, obtain the rectified oxygen, and transmit it to the second oxygen inlet chamber 1023;

[0087] The second oxygen inlet chamber 1023 is used to transmit the rectified oxygen to the interior of the fan 103 .

[0088] It should be noted that before the outside air in the first oxygen inlet chamber 1021 enters the oxygen air block 1022, the flow state of the oxygen may be affected by the elbow, valve or other obstacles upstream of the pipeline, resulting in uneven flow, eddy current or uneven velocity distribution. Therefore, the oxygen air block 1022 is provided between the first oxygen inlet chamber 1021 and the second oxygen inlet chamber 1023, which can rectify the oxygen flowing from the first oxygen inlet chamber 1021 to the second oxygen inlet chamber 1023, making the oxygen flow more stable and uniform, thereby improving the subsequent measurement accuracy.

[0089] Next, the operating principle of the ventilator system provided in this embodiment will be described. When it is necessary to obtain a preset concentration of oxygen, the fan 103 in the ventilator 10 is first turned on. The rotation of the fan 103 will reduce the pressure inside the fan 103, so that oxygen is sucked into the fan 103 through the first oxygen inlet chamber 1021, the oxygen air resistance 1022 and the second oxygen inlet chamber 1023. At the same time, the outside air is sucked into the fan 103 through the air inlet chamber 101, so that the outside air and oxygen inside the fan 103 are quickly mixed under the rotation of the impeller of the fan 103 to obtain a mixed gas, and then the mixed gas is transmitted to the air outlet chamber 104 to be transmitted to the user via the air outlet chamber 104.

[0090] In this embodiment, by setting an oxygen gas resistance between the two oxygen inlet chambers, the oxygen flowing from the first oxygen inlet chamber 1021 to the second oxygen inlet chamber 1023 can be rectified, making the oxygen flow more stable and uniform, thereby improving subsequent measurement accuracy.

[0091] In an exemplary embodiment, a pressure control module may also be provided in the air outlet chamber 104. The pressure control module can adjust the pressure of the mixed gas in the air outlet chamber 104 according to a preset pressure threshold to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

[0092] The preset pressure threshold may be a pressure threshold calculated based on the oxygen concentration required by the user and the volume of the air outlet cavity 104 .

[0093] The pressure control module may be a pressure applying module or a pressure releasing unit. When the pressure of the mixed gas in the air outlet chamber 104 is greater than a preset pressure threshold, the pressure releasing unit may be activated to reduce the pressure in the air outlet chamber 104 to obtain a mixed gas with a preset oxygen concentration, and the mixed gas with the preset oxygen concentration is transmitted to the user; when the pressure of the mixed gas in the air outlet chamber 104 is less than a preset pressure threshold, the pressure applying unit may be activated to increase the pressure in the air outlet chamber 104 to obtain a mixed gas with a preset oxygen concentration, and the mixed gas with the preset oxygen concentration is transmitted to the user.

[0094] In this embodiment, a pressure control module is provided in the air outlet chamber 104 to control the pressure in the air outlet chamber 104 to always be at a preset pressure threshold, thereby ensuring that the oxygen concentration of the mixed gas transmitted to the user through the air outlet chamber 104 reaches the oxygen concentration expected by the user.

[0095] In an exemplary embodiment, a sensor and a control module may be further provided in the air outlet cavity 104, wherein:

[0096] The sensor is used to collect the pressure parameters, flow parameters and oxygen concentration of the mixed gas in the air outlet cavity;

[0097] The control module is used to adjust the pressure of the mixed gas in the air outlet chamber according to the pressure parameter and the flow parameter to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

[0098] Among them, the sensor can be set at any position on the inner wall of the air outlet chamber 104, and this embodiment does not limit this. The sensor is connected to the control module, and the sensor can transmit the collected pressure parameters, flow parameters and oxygen concentration of the mixed gas in the air outlet chamber 104 to the control module.

[0099] It should be noted that after receiving the pressure parameters, flow parameters and oxygen concentration of the mixed gas in the air outlet chamber 104 transmitted by the sensor, the control module can adjust the pressure of the mixed gas in the air outlet chamber 104 according to the pre-stored expected oxygen concentration parameters to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

[0100] Optionally, an intelligent pressure control algorithm can be set in the control module, and the entire process of oxygen supply and mixing is precisely controlled by the intelligent pressure control algorithm. When supplying air to the pressure outlet chamber 104, it is easy to cause the pressure in the pressure outlet chamber 104 to drop, which in turn leads to an imbalance in the air pressure in the ventilator cavity, resulting in air leakage, weakening of the inspiratory pressure and other problems. At this time, the intelligent pressure control algorithm collects key parameters such as the pressure parameters and air supply flow of the pressure outlet chamber in real time, and uses cutting-edge control strategies, such as model predictive control (MPC) or adaptive control technology, to dynamically adjust the air supply pressure and oxygen supply flow, thereby effectively resolving a series of problems derived from the unstable pressure of the pressure outlet chamber.

[0101] In this embodiment, by setting a sensor and a control module in the air outlet chamber 104, the pressure of the mixed gas in the air outlet chamber is adjusted, thereby ensuring that the oxygen concentration of the mixed gas transmitted to the user through the air outlet chamber 104 reaches the oxygen concentration expected by the user.

[0102] In an exemplary embodiment, see Figure 3The above-mentioned ventilator system 10 also includes: an air inlet hole 106, which is arranged in the outer cavity of the fan 103 and connects the air inlet cavity 101 with the fan 102.

[0103] The air inlet hole 106 may be a round hole or a square hole, which is not limited in this embodiment.

[0104] In this embodiment, an air inlet hole 106 is provided on the outer cavity of the fan 103 so that the external air in the air inlet cavity 101 can be transmitted to the fan 103 through the air inlet hole 106 , providing a basis for subsequent stirring and mixing of the external air and oxygen in the fan 103 .

[0105] In an exemplary embodiment, the ventilator system 10 further includes an air inlet valve 1061 disposed inside the air inlet hole 106 for adjusting the flow rate of the external air transmitted to the blower 103 .

[0106] It should be noted that when the user needs a high concentration of oxygen, the opening of the air inlet valve 1061 can be adjusted to a smaller degree, so that the outside air is slowly transmitted to the fan 103 and mixed with the oxygen in the fan 103, thereby producing a high concentration of oxygen. When the user needs a low concentration of oxygen, the opening of the air inlet valve 1061 can be adjusted to a larger degree, so that the outside air is quickly transmitted to the fan 103 and mixed with the oxygen in the fan 103, thereby producing a low concentration of oxygen.

[0107] Furthermore, the air inlet valve 1061 can also be connected to the control module in the above embodiment. When the acquisition module collects the current oxygen concentration of the mixed air, the oxygen concentration of the mixed air is transmitted to the control module. The control module determines whether it is necessary to increase the outside air or increase the oxygen based on the oxygen concentration of the mixed air and the expected oxygen concentration. When it is necessary to increase the outside air and reduce the oxygen, the valve opening of the air inlet valve 1061 is increased to increase the flow rate of the outside air transmitted to the fan 103, so that more outside air can be quickly transmitted to the fan 103. When it is necessary to reduce the outside air and increase the oxygen, the valve opening of the air inlet valve 1061 is reduced to reduce the flow rate of the outside air transmitted to the fan 103, so that less outside air can be quickly transmitted to the fan 103.

[0108] In an exemplary embodiment, please see Figure 3 The above-mentioned ventilator system 10 also includes: an air outlet 107, which is arranged in the outer cavity of the fan 103 and connects the air outlet cavity 104 with the fan 103.

[0109] The air outlet 107 may be a round hole or a square hole, which is not limited in this embodiment.

[0110] In this embodiment, an air outlet 107 is provided on the outer cavity of the blower 103 so that the mixed gas of oxygen and outside air in the air outlet cavity 104 can be transmitted to the user through the air outlet 107 to provide the user with oxygen of the required concentration.

[0111] In an exemplary embodiment, the ventilator system 10 further includes: an oxygen transfer valve 1051 disposed inside the oxygen transfer hole 105 for adjusting the flow rate of oxygen transmitted to the blower 103 .

[0112] It should be noted that when the user needs a high concentration of oxygen, the opening of the transfer valve 1051 can be increased, so that the oxygen is quickly transmitted to the fan 103 and mixed with the external air in the fan 103, thereby producing a high concentration of oxygen. When the user needs a low concentration of oxygen, the opening of the transfer valve 1051 can be reduced, so that the oxygen is slowly transmitted to the fan 103 and mixed with the external air in the fan 103, thereby producing a low concentration of oxygen.

[0113] Furthermore, when the user needs a high concentration of oxygen, the opening of the transfer valve 1051 can be increased, and the opening of the air inlet valve 1061 can be decreased, so that oxygen is quickly transmitted to the inside of the fan 103, and the outside air is slowly transmitted to the inside of the fan 103, thereby generating a high concentration of oxygen inside the fan 103; and, when the user needs a low concentration of oxygen, the opening of the transfer valve 1051 can be decreased, and the opening of the air inlet valve 1061 can be increased, so that oxygen is slowly transmitted to the inside of the fan 103, and the outside air is quickly transmitted to the inside of the fan 103, thereby generating a low concentration of oxygen inside the fan 103.

[0114] Furthermore, the transfer valve 1051 can also be connected to the control module in the above embodiment. When the acquisition module acquires the current oxygen concentration of the mixed air, the oxygen concentration of the mixed air is transmitted to the control module. The control module determines whether it is necessary to increase the outside air or increase the oxygen according to the oxygen concentration of the mixed air and the expected oxygen concentration. When it is necessary to increase the outside air and reduce the oxygen, the valve opening of the air inlet valve 1061 is increased and the valve opening of the transfer valve 1051 is reduced, thereby increasing the flow rate of the outside air transmitted to the fan 103 and reducing the flow rate of the oxygen transmitted to the fan 103. More external air is quickly transmitted to the fan 103, and less oxygen is slowly transmitted to the fan 103, so that the oxygen concentration of the mixed air reaches the expected oxygen concentration; when it is necessary to reduce the external air and increase the oxygen, the valve opening of the air inlet valve 1061 is reduced, and the valve opening of the transfer valve 1051 is increased, thereby reducing the flow rate of the external air transmitted to the fan 103 and increasing the flow rate of the oxygen transmitted to the fan 103, so that less external air is quickly transmitted to the fan 103, and more oxygen is slowly transmitted to the fan 103, so that the oxygen concentration of the mixed air reaches the expected oxygen concentration.

[0115] In this embodiment, by setting an air inlet and an air outlet on the outer cavity of the fan of the ventilator system, setting an air inlet valve inside the air inlet, and setting a transfer valve in the oxygen transfer hole, the flow rate of oxygen and air transmitted to the inside of the fan can be adjusted, thereby reducing the difference between the oxygen concentration of the mixed gas and the expected oxygen concentration, thereby ensuring the mixing efficiency of the mixture.

[0116] In one embodiment, see Figure 4 In the figure, the dotted arrows indicate the flow path of the external air, and the solid arrows indicate the flow path of the oxygen. The two gases meet in the chamber of the fan 103, and are mixed under the stirring action of the fan 103 and then input into the air outlet chamber 104. That is, the external air flows from the first air inlet chamber 1011 into the second air inlet chamber 1013 in sequence, and then enters the chamber of the fan 103. The oxygen flows from the first oxygen inlet chamber 1021 into the second oxygen inlet chamber 1023 in sequence, and then enters the chamber of the fan 103. Inside the chamber of the fan 103, the oxygen and the external air are highly mixed. After the mixing is completed, the mixed gas is transmitted to the air outlet chamber 104, and then transmitted to the user through the air outlet chamber 104.

[0117] In one embodiment, see Figure 5, the overall working principle of the ventilator system can be explained. First, after the ventilator system is turned on, the user can set the expected oxygen concentration on the ventilator system and turn on the fan in the ventilator system. At this time, oxygen and external air are pressed into the fan, and the fan highly fuses the oxygen and external air to obtain a fused mixed gas, and transmits the fused mixed gas to the air outlet chamber. The sensor set in the air outlet chamber can collect the oxygen concentration of the mixed gas and transmit the oxygen concentration of the mixed gas to the pressure control module in the air outlet chamber. The pressure control module outputs pressure control instructions, oxygen flow calculation instructions and tidal volume calculation instructions according to the oxygen concentration of the mixed gas and the expected oxygen concentration, so that the air outlet chamber can efficiently output a preset concentration of oxygen-external air mixed gas according to the pressure control instructions, oxygen flow calculation instructions and tidal volume calculation instructions.

[0118] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0119] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A ventilator system, characterized in that: The ventilator system includes: an air inlet chamber, an oxygen inlet chamber, a blower, and an air outlet chamber, wherein the outer cavity of the blower is provided with an oxygen transfer hole; The air inlet cavity is used to transmit external air to the interior of the fan; The oxygen inlet chamber is used to transmit oxygen to the interior of the blower through the oxygen transfer hole; The blower is used to mix the outside air and the oxygen inside the blower to obtain a mixed gas, and transmit the mixed gas to the air outlet cavity.

2. The ventilator system according to claim 1, wherein: The air inlet chamber includes: a first air inlet chamber, a venturi tube and a second air inlet chamber; The first air inlet cavity is used to transmit the external air to the Venturi tube; The Venturi tube is used to rectify the outside air, obtain and transmit the rectified outside air to the second air inlet chamber; The second air inlet cavity is used to transmit the rectified external air to the interior of the fan.

3. The ventilator system according to claim 1, wherein: The oxygen inlet chamber comprises: a first oxygen inlet chamber, an oxygen gas block and a second oxygen inlet chamber; The first oxygen inlet chamber is used to transmit the oxygen to the oxygen gas block; The oxygen gas block is used to rectify the oxygen to obtain and transmit the rectified oxygen to the second oxygen inlet chamber; The second oxygen inlet chamber is used to transmit the rectified oxygen to the interior of the blower.

4. The ventilator system according to claim 1, wherein: The air outlet cavity is provided with The spoiler is used to speed up the flow of gas in the air outlet cavity.

5. The ventilator system according to any one of claims 1 to 4, characterized in that: A pressure control module is provided in the air outlet chamber for adjusting the pressure of the mixed gas in the air outlet chamber according to a preset pressure threshold to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

6. The ventilator system according to any one of claims 1 to 4, characterized in that: The air outlet cavity is provided with a sensor and a control module, wherein: A sensor for collecting pressure parameters, flow parameters and oxygen concentration of the mixed gas in the air outlet cavity; The control module is used to adjust the pressure of the mixed gas in the air outlet chamber according to the pressure parameter and the flow parameter to obtain a mixed gas with a preset oxygen concentration, and transmit the mixed gas with the preset oxygen concentration to the user.

7. The ventilator system according to any one of claims 1 to 4, characterized in that: The ventilator system further comprises: An air inlet hole is provided in the outer cavity of the fan and connects the air inlet cavity with the fan.

8. The ventilator system according to claim 7, wherein: The ventilator system further includes: an air inlet valve arranged inside the air inlet hole, which is used to adjust the flow rate of the external air transmitted to the blower.

9. The ventilator system according to any one of claims 1 to 4, characterized in that: The ventilator system further comprises: The air outlet is arranged in the outer cavity of the fan and connects the air outlet cavity with the fan.

10. The ventilator system according to claim 1, wherein: The ventilator system further comprises: The transfer valve arranged inside the oxygen transfer hole is used to adjust the flow rate of oxygen transmitted to the blower.

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